Method and apparatus for processing elongated members

Abstract

To provide a longitudinal member which is a wire, a cable, a sheet or a tubular hollow member that is processed into a desired longitudinal shape, and a processing device and a processing method of the same.SOLUTION: Both infrared lamps 42 and 52 emit infrared light by an amount according to the strength of habitual bending of a longitudinal member 10 having the habitual bending so as to correct and process the habitual bending of the longitudinal member 10 accompanying movement of the longitudinal member 10.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a longitudinal section that is processed into a straight or bent shape. Material addition This invention relates to a processing method and a processing device. [Background technology]

[0002] Conventionally, in processing devices for processing elongated members into a straight or curved shape, a linear body straightening device has been proposed, as described in the following Patent Document 1. This linear body straightening device is equipped with a lower support base and an upper support base, and the upper support base is disposed above the lower support base so as to face each other, and the upper support base is configured to be able to move up and down along both guide shafts extending from fixed parts located above it.

[0003] A plurality of bottom straightening rollers are supported on the lower support base, and a plurality of straightening rollers are supported on the upper support base. The plurality of bottom straightening rollers and the plurality of straightening rollers are respectively arranged at appropriate intervals in the wire conveying direction and configured to be rotatable.

[0004] The bottom straightening rollers and the straightening rollers are arranged so as to be perpendicular to the electric wire in the axial direction thereof, and are arranged in a staggered manner so as to be alternately arranged above and below the electric wire conveying direction.

[0005] The drive unit is disposed above the fixed part. The drive unit has an output rod, which extends downward through the fixed part via the housing of the drive unit and is connected to the upper support base. Here, the drive unit drives the output rod to move up and down using its servo motor, thereby sliding the upper support base along the guide shaft. This allows the upper support base to be moved to a position where the straightening roller can properly press against the electric wire.

[0006] In straightening an electric wire with this configuration, the electric wire is placed on the bottom straightening rollers, and then the upper support base is lowered to a target position by the drive unit so that the straightening rollers press the electric wire. As a result, the electric wire is set so that it is wrapped around the straightening rollers and the bottom straightening rollers in a zigzag pattern. Then, when the pull-in roller is driven, the electric wire is pushed up and down by the straightening rollers and the bottom straightening rollers while moving so as to be pulled into the pull-in rollers, and is bent so as to repeatedly make mountain and valley folds. This removes the bends and curls of the electric wire and straightens it out. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2009-172642 A Summary of the Invention [Problem to be solved by the invention]

[0008] In the linear body straightening device thus constructed, when straightening an electric wire, the upper support table is lowered to a target position as described above. Here, the target position is determined as follows.

[0009] The target position of the upper support stand is expressed as the downward movement distance from the uppermost end position (origin) of the lifting stroke of the upper support stand, and is stored in a memory unit for each type of electric wire (type based on the material and diameter of the electric wire, etc.).

[0010] Therefore, when straightening an electric wire, the upper support stand is lowered to a target position according to the type of electric wire to be straightened.

[0011] However, when different electric wires have different bending or curling tendencies even if they are the same type of electric wire, a single target position stored in advance is insufficient to properly correct the bending or curling tendencies of the electric wire.

[0012] Furthermore, not only in the case of straightening the electric wire as described above, but also in the case of processing the electric wire into a part with a desired bend shape, or processing the electric wire from its raw material into a part with a desired bend shape, the target position that is preset for each type of electric wire as described above is insufficient.

[0013] Moreover, the above is not limited to electric wires, but is similarly applicable to cables such as covered cables, tubular or tube-shaped hollow members, and longitudinal members such as longitudinal sheets.

[0014] In order to address the above-mentioned problems, the present invention provides a method for manufacturing a long-shaped member such as an electric wire, a cable, a sheet, or a tubular or tube-shaped hollow member that is processed into a desired long-shaped shape. Material The object is to provide a processing device and a processing method. [Means for solving the problem]

[0015] In order to solve the above problem, the processing device for a long member according to the present invention comprises, according to claim 1: The longitudinal middle portion (13) of the elongated member (10) having a bent shape ) from one of the opposing sides The intermediate portion in the longitudinal direction is arranged so as to face the The red light is focused from one side of the The first one is made of external light or laser light. 1 light Emits light The first reference Light emitting means (40, 50, 233, 234) 、 a second irradiation light emitting means (40, 50, 233, 234) disposed to face the first irradiation light emitting means from the other of the opposing both sides across the longitudinal intermediate portion, and emitting a second irradiation light consisting of infrared light or laser light so as to be focused from the other side at the longitudinal intermediate portion; Longitudinal section The length of the material Move along the hand direction Move Transportation (20, 30, 70, 231), A detection means (S1) for detecting the strength of a bending tendency of the elongated member as a bending tendency strength; Correcting the bending tendency of long parts The first step required 1 and 2 Irradiation light output vs. bending strength characteristics (1, 2 ), the first irradiation light output vs. bending tendency strength characteristic (1) is predetermined as a V-shaped characteristic such that, with the detected bending tendency strength value of 0 as a reference, the first irradiation light output increases at one side of the longitudinal middle portion in response to an increase in the detected bending tendency strength toward that one side, and increases at the other side of the longitudinal middle portion in response to an increase in the detected bending tendency strength toward that other side; and the second irradiation light output vs. bending tendency strength characteristic (2) is predetermined as a V-shaped characteristic such that, with the detected bending tendency strength value of 0 as a reference, the second irradiation light output increases at one side of the longitudinal middle portion in response to an increase in the detected bending tendency strength toward that one side, and increases at the other side of the longitudinal middle portion in response to an increase in the detected bending tendency strength toward that other side. In this way, the longitudinal part by the moving means MaterialAlong with the movement, the first irradiation light output-curvature strength characteristic (1) is set according to the strength of the curve detected by the detection means. The above-mentioned a first irradiation light outputting means (40) is controlled so as to output a first irradiation light as the first irradiation light, and the output is set in accordance with the bending tendency strength detected by the detecting means based on a second irradiation light output-bending tendency strength characteristic (2); The above-mentioned and a control means (60, 80, 90) for controlling the second irradiation light emitting means (50) so as to emit the second irradiation light output as the second emitted light. 、 First light Light output vs. bending resistance characteristics (1) teeth , long Above the middle part of the hand Note The above First light In terms of irradiated light output, 2nd light Light output vs. bending resistance characteristics (2) Chief Hand direction middle part Above one side The above 2nd light It is set larger than the irradiated light output. 2nd light Light output vs. bending resistance characteristics (2) teeth , long Hand direction middle part The other side of The above 2nd light In terms of irradiated light output, First light Light output vs. bending resistance characteristics (1) Head of Hand direction middle part The other side of The above First light It is set larger than the irradiated light output. And, Under the control of the control means, the bent longitudinal member is straightened according to the difference between the heating amounts based on the amounts of light focused from the one side and the other side of the first and second irradiation light on the longitudinal intermediate portion.

[0016] According to such a configuration , first light light emitting hand The steps are: The middle part of a bent longitudinal member Then, from one of the opposing sides The intermediate portion in the longitudinal direction is arranged so as to face the The red light is focused from one side of the From external light or laser light The first reference Emits light The second irradiation light emitting means is disposed to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion of the longitudinal member through the longitudinal intermediate portion, and emits second irradiation light consisting of infrared light or laser light so as to be focused on the longitudinal intermediate portion from the other side. It has become like this.

[0017] Furthermore, among the first and second irradiation light output-bending tendency strength characteristics required for correcting the bending tendency of the longitudinal member, a first irradiation light output-bending tendency strength characteristic (1) is predetermined as a V-shaped characteristic in which, based on a value of 0 for the detected bending tendency strength, the first irradiation light output increases at the one side of the longitudinal intermediate portion in response to an increase in the detected bending tendency strength toward the one side, and increases at the other side of the longitudinal intermediate portion in response to an increase in the detected bending tendency strength toward the other side, and a second irradiation light output-bending tendency strength characteristic (2) is predetermined as a V-shaped characteristic in which, based on a value of 0 for the detected bending tendency strength, the second irradiation light output increases at the one side of the longitudinal intermediate portion in response to an increase in the detected bending tendency strength toward the one side, and increases at the other side of the longitudinal intermediate portion in response to an increase in the detected bending tendency strength toward the other side, The means are , long distance travel by transportation palm part Material With the move, The first irradiation light output emitting means is controlled so as to emit, as the first irradiation light, a first irradiation light output set in accordance with the bending characteristic strength detected by the detection means based on the first irradiation light output-bending characteristic strength characteristic, and the second irradiation light output is controlled so as to emit, as the second emitted light, a second irradiation light output set in accordance with the bending characteristic strength detected by the detection means based on the second irradiation light output-bending characteristic strength characteristic. The light emitting means is controlled.

[0019] Here, as mentioned above, The radiated light output vs. bending resistance characteristic is , long Above the middle part of the hand Note In First light In terms of irradiated light output, 2nd light Light output vs. bending resistance characteristics Chief Above the middle part of the hand Note In 2nd light It is set larger than the irradiated light output. This is to correct the tendency of the elongated member to bend to one side. direction, 2nd light The radiated light output vs. bending resistance characteristic is , long Above the middle part of the hand Other side In 2nd light In terms of irradiated light output, First light Light output vs. bending resistance characteristics in the middle of the longitudinal direction Other side In First light It is set larger than the irradiated light output. This is to correct the tendency of the elongated member to bend toward the other side.

[0020] Thus, under the control of the control means as described above, the longitudinal member having a bent tendency is straightened in accordance with the difference between the heating amounts based on the amounts of the first and second irradiation light focused from one side and the other side to the longitudinal intermediate portion of the bent tendency. Can be easily straightened into a linear shape 。 Here, when the first irradiation light output at the one side of the longitudinal middle portion in the first irradiation light output-bending tendency strength characteristic is larger than the second irradiation light output at the one side of the longitudinal middle portion in the second irradiation light output-bending tendency strength characteristic, the bending tendency of the longitudinal member toward the one side is strong, and the bending tendency strength of the longitudinal member toward the one side can be corrected according to the difference between the two heating amounts. Also, when the second irradiation light output at the other side of the longitudinal middle portion in the second irradiation light output-bending tendency strength characteristic is larger than the first irradiation light output at the other side of the longitudinal middle portion in the first irradiation light output-bending tendency strength characteristic, the bending tendency of the longitudinal member toward the other side is strong, and the bending tendency strength of the longitudinal member toward the other side can be corrected according to the difference between the two heating amounts. In addition, in claim 1, the first irradiation light output-bending tendency strength characteristic may be predetermined as a V-shaped characteristic such that the first irradiation light output increases linearly in response to an increase in the detected bending tendency strength to the one side and the other side of the longitudinal middle portion, with the detected bending tendency strength value being zero as a reference, and the second irradiation light output-bending tendency strength characteristic may be predetermined as a V-shaped characteristic such that the second irradiation light output increases linearly in response to an increase in the detected bending tendency strength to the one side and the other side of the longitudinal middle portion, with the detected bending tendency strength value being zero as a reference. In each of the V-shaped characteristics, the gradient of the straight line along which the first and second irradiation light outputs increase linearly may be greater than zero.

[0021] According to claim 2, the processing device for a long member according to the present invention comprises: The intermediate portion ( 14) from one of the opposing sides The intermediate portion in the longitudinal direction is arranged so as to face the Above one side mosquito The red light is focused from the From external light or laser light The first reference Emits light The first reference Light emitting means (40, 50, 332, 333) 、 a second irradiation light emitting means (40, 50, 332, 333) disposed to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion of the linear elongated member via the longitudinal intermediate portion, and emitting a second irradiation light consisting of infrared light or laser light so as to be focused from the other side at the longitudinal intermediate portion; Straight longitudinal section Material to its length Move along the hand direction Move Transportation (20, 30, 70, 331), A setting means (60a, 320, 321) for setting a curvature required for bending a straight elongated member into a predetermined curved shape as a set curvature; Bending a straight, elongated member The first step required 1 and 2 irradiation light output-curvature characteristics sex (3, 4 ), the first irradiation light output-curvature characteristic (3) is predetermined as a V-shaped characteristic such that, with the set curvature value of 0 as a reference, the first irradiation light output increases at the one side of the longitudinal intermediate portion in accordance with an increase in the set curvature toward the one side, and increases at the other side of the longitudinal intermediate portion in accordance with an increase in the set curvature toward the other side; and the second irradiation light output-curvature characteristic (4) is predetermined as a V-shaped characteristic such that, with the set curvature value of 0 as a reference, the second irradiation light output increases at the one side of the longitudinal intermediate portion in accordance with an increase in the set curvature toward the one side, and increases at the other side of the longitudinal intermediate portion in accordance with an increase in the set curvature toward the other side. In this case, the linear elongated member is moved by the moving means. The transition In accordance with the movement, the amount of the first irradiation light output-curvature characteristic (3) is set according to the above-mentioned set curvature. The above-mentioned The first irradiation light output is controlled to emit the first irradiation light output as the first irradiation light. 2 light The amount is set according to the above set curvature based on the irradiated light output-curvature characteristic (4). The above-mentioned and a control means (60, 80, 90) for controlling the second irradiation light emitting means (50) so as to emit the second irradiation light output as the second irradiation light. 、 First light Light output vs. curvature characteristics (3) teeth , long Hand direction middle part Above one side The above First light In terms of irradiated light output, 2nd light Light output vs. curvature characteristics (4) The middle part in the longitudinal direction Above one side The above 2nd light It is set larger than the irradiated light output. 2nd light Light output vs. curvature characteristics (4) teeth , long Hand direction middle part The other side of The above 2nd light In terms of irradiated light output, First light Light output vs. curvature characteristics (3) Chief Above the middle part of the hand Other side The above First light It is set larger than the irradiated light output. And, Under the control of the control means, the straight longitudinal member is bent into the specified curved shape according to the difference between the heating amounts based on the amounts of light focused from the one side and the other side of the first and second irradiation light at the longitudinal intermediate portion.

[0022] With this configuration, If so, the first The light emitting means is disposed at a middle portion of the linear elongated member in the longitudinal direction. At the same time, one of the opposing sides is The intermediate portion in the longitudinal direction is arranged so as to face the The red light is focused from one side of theThe first one is made of external light or laser light. 1 light Emits light The second irradiation light emitting means is disposed to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion of the longitudinal member through the longitudinal intermediate portion, and emits second irradiation light consisting of infrared light or laser light so as to be focused on the longitudinal intermediate portion from the other side. It has become like this.

[0023] Furthermore, among the first and second irradiation light output-curvature characteristics (3, 4) required for bending a linear longitudinal member, the first irradiation light output-curvature characteristic (3) is predetermined as a V-shaped characteristic such that, with the set curvature value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the set curvature toward the one side of the longitudinal intermediate portion, and increases in accordance with an increase in the set curvature toward the other side of the longitudinal intermediate portion, and the second irradiation light output-curvature characteristic (4) is predetermined as a V-shaped characteristic such that, with the set curvature value of 0 as a reference, the second irradiation light output increases in accordance with an increase in the set curvature toward the one side of the longitudinal intermediate portion, and increases in accordance with an increase in the set curvature toward the other side of the longitudinal intermediate portion, The means are , direct by transportation Linear longitudinal section Material transfer With the movement , first light Set the amount according to the set curvature based on the irradiated light output-curvature characteristics. The first reference Radiation Output First, It emits light as a First reference to Controlling the light emitting means At the same time, the second irradiation light emitting means is controlled so as to emit, as the second irradiation light, a second irradiation light output that is set at an amount corresponding to the set curvature based on the second irradiation light output-curvature characteristic.

[0025] Here, as mentioned above, The irradiance vs. curvature characteristic is , long Hand direction middle part Above one side The above First light In terms of irradiated light output, 2nd light Light output vs. curvature characteristics Chief Hand direction middle part On Note one side The above 2nd light It is set larger than the irradiated light output. This is because the elongated member is bent with a curvature toward one side. direction, 2nd light The light output vs. curvature characteristics are at the middle of the longitudinal direction. The other side of The above 2nd light In terms of irradiated light output, First light Light output vs. curvature characteristics Chief Above the middle part of the hand Other side The above First light It is set larger than the irradiated light output. This is because the elongated member is bent with the curvature towards the other side.

[0026] Thus, under the control of the control means as described above, Straight elongated member Chief The middle part of the hand is A predetermined heating amount is determined according to a difference between the amounts of the first and second irradiation lights focused from one side and the other side of the longitudinal center portion. Can be easily bent into a specific shape 。 Here, when the first infrared light output at the one side of the longitudinal middle portion in the first infrared light output-curvature characteristic is greater than the second infrared light output at the one side of the longitudinal middle portion in the second infrared light output-curvature characteristic, the longitudinal middle portion can be bent toward the one side into a predetermined curved shape according to the difference between the two amounts of heat. Also, when the second infrared light output at the other side of the longitudinal middle portion in the second infrared light output-curvature characteristic is greater than the first infrared light output at the other side of the longitudinal middle portion in the first infrared light output-curvature characteristic, the longitudinal middle portion can be bent toward the other side into a predetermined curved shape according to the difference between the two amounts of heat. In addition, in claim 2, the first irradiation light output-curvature characteristic may be predetermined as a V-shaped characteristic such that the first irradiation light output increases linearly in response to an increase in the set curvature to the one side and the other side of the longitudinal middle portion, with the set curvature value of 0 as a reference, and the second irradiation light output-curvature characteristic may be predetermined as a V-shaped characteristic such that the second irradiation light output increases linearly in response to an increase in the set curvature to the one side and the other side of the longitudinal middle portion, with the set curvature value of 0 as a reference. In each of the V-shaped characteristics, the gradient of the straight line along which the first and second irradiation light outputs increase linearly may be greater than zero.

[0027] According to claim 3, the processing device for a long member according to the present invention comprises: The intermediate portion (14) in the longitudinal direction of the straight elongated member (10a) ) from one of the opposing sides The intermediate portion in the longitudinal direction is arranged so as to face the The red light is focused from one side of the From external light or laser light The first reference Emits light The first reference Light emitting means (40, 50, 332a, 333a) 、 a second irradiation light emitting means that is disposed to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion via the longitudinal intermediate portion and emits a second irradiation light consisting of infrared light or laser light so as to be focused from the other side at the longitudinal intermediate portion. (40, 50, 332a, 333a) and, Straight longitudinal section Material to its length Move along the hand direction Moving A moving means (20, 30, 70, 331); The time required to bend a straight, elongated member into a desired wave shape The First and second irradiation light output Regarding power, see paragraph 1 above. Radiation Output First lap It changes according to the change in the phase of the periodic wave curve. 1st week Set as the optical output for the periodic wave irradiation. and setting the second irradiation light output as a second periodic wave irradiation light output so as to change in accordance with a change in the phase of the second periodic wave curve which is in the opposite phase to the phase of the first periodic wave curve. A fixing means (60a, 320a, 321a), Straight longitudinal section by moving means Material As you move Yes, this The straight longitudinal member is bent into the predetermined wave shape. To, By setting the setting means Record number First and second periodic wave irradiation light output Regarding the force, the first periodic wave irradiation output is changed according to the change in the phase of the first periodic wave curve. While changing over time Article 1 It emits light as a First reference to Controlling the light emitting means and a control unit for controlling the second irradiation light emitting means so as to emit the second irradiation light while changing the second periodic wave irradiation light output over time in accordance with a change in the phase of the second periodic wave curve. Equipped with measures (60, 80, 90) There are Under the control of the control means, a straight longitudinal member is bent into the specified wave shape according to the difference between the heating amounts based on the amounts of the first and second irradiation lights focused from the one side and the other side to the longitudinal intermediate portion.

[0028] According to such a configuration , first light light emitting hand The steps are: The middle part of the straight elongated member in the longitudinal direction Then, from one of the opposing sides The intermediate portion in the longitudinal direction is arranged so as to face the The red light is focused from one side of the From external light or laser light The first reference Emits light The second irradiation light emitting means is disposed to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion via the longitudinal intermediate portion, and emits second irradiation light consisting of infrared light or laser light so as to be focused on the longitudinal intermediate portion from the other side. It has become like this.

[0029] Here, the setting means is a means for setting a bending speed required for bending a straight elongated member into a predetermined wave shape. TheFirst and second irradiation light output The first irradiation light output is changed in response to a change in the phase of the first periodic wave curve. Set as the optical output for the periodic wave irradiation. and setting the second irradiation light output as a second periodic wave irradiation light output so as to change in response to a change in the phase of the second periodic wave curve, which is in the opposite phase to the phase of the first periodic wave curve. It is designed to determine the

[0030] Accordingly, the control means controls the linear longitudinal portion by the moving means. Material With the move, Current The straight elongated member The above The setting means is set so that the bending is performed into a predetermined wave shape. The First and second periodic wave irradiation light output Regarding the force, the first periodic wave irradiation output is changed according to the change in the phase of the first periodic wave curve. While changing over time First light It emits light as a First reference to Controlling the light emitting means and controlling the second irradiation light emitting means so as to emit the second irradiation light while changing the second periodic wave irradiation light output with time in accordance with the change in the phase of the second periodic wave curve. .

[0031] This is The The first and second irradiation light emitting means , according to the change in phase of the first and second periodic wave curves Time-varying The The first and second irradiation lights are irradiated to a longitudinal intermediate portion of a linear elongated member at amounts corresponding to the first and second periodic wave irradiation light outputs. One side and the other side This means that light is collected from the

[0032] Thus, under the control of the above-mentioned control means, The linear elongated member is Depending on the difference between the two heating amounts based on the amounts of the first and second irradiation lights focused from one side and the other side with respect to the longitudinal intermediate portion, It can be easily bent into a desired wave shape.

[0033] According to claim 4, the processing device for a long member according to the present invention comprises: In manufacturing the elongated member (10), the longitudinal middle portion (13) of the elongated member is ) from one of the opposing sides The intermediate portion in the longitudinal direction is arranged so as to face the The red light is focused from one side of the From external light or laser light The first reference Emits light The first reference Light emitting means (40, 50, 233a, 234a) 、 In the above-mentioned manufacturing of the longitudinal member, a second irradiation light emitting means (40, 50, 233a, 234a) is disposed so as to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion of the longitudinal member through the longitudinal intermediate portion, and emits a second irradiation light consisting of infrared light or laser light from the other side of the longitudinal intermediate portion; long hand-shaped member That Move along the longitudinal direction Move Transportation (20, 30, 70, 231), The length required to straighten a long member TheFirst and second irradiation light output Set them to be the same value. setting means (60a, 220a, 221a) for setting the Longitudinal member by moving means The transition With the movement Regarding the first and second irradiation light outputs required to process a longitudinal member into a straight line, and a control means (60, 80, 90) for controlling the first irradiation light emitting means to emit the first irradiation light output as the first irradiation light, and for controlling the second irradiation light emitting means to emit the second irradiation light output as the second irradiation light. 、 Under the control of the control means, in manufacturing the longitudinal member, the longitudinal member is processed into a straight line by heating amounts based on the same amounts of light collected from the one side and the other side of the first and second irradiation light beams to the longitudinal intermediate portion. .

[0034] According to such a configuration In manufacturing the elongated member, The light emitting means is , long The middle part of the hand-shaped member in the longitudinal direction At the same time, one of the opposing sides is The intermediate portion in the longitudinal direction is arranged so as to face the The red light is focused from one side. From external light or laser light The first reference Emits light The second irradiation light emitting means is disposed to face the first irradiation light emitting means from the other of the two opposing sides of the longitudinal intermediate portion of the longitudinal member through the longitudinal intermediate portion, and emits second irradiation light consisting of infrared light or laser light from the other side of the longitudinal intermediate portion. It has become like this.

[0035] Here, the setting means is a setting means for setting the length of the elongated member to a straight line. The First and second irradiation light output Set them to be the same value. Determine.

[0036] Accordingly, the control means controls the movement of the elongated member by the moving means. The transition With the movement Regarding the first and second irradiation light outputs required to process a longitudinal member into a straight line, 1 Irradiation light output The first and controlling the first irradiation light emitting means to emit the first irradiation light. Second 2 Light output The first The second irradiation light emitting means is controlled so as to emit the second irradiation light.

[0037] This is The The first and second irradiation light emitting means are set to the same value. The The amounts corresponding to the first and second irradiation light outputs are The second The first and second irradiation lights are directed to a middle portion of the longitudinal member. From one side and the other side of the position This means concentrating the light from the object.

[0038] Thus, under the control of the above-mentioned control means, in the manufacture of the elongated member,The hand-shaped member has a longitudinal middle portion, The first and second irradiation lights are each heated based on the same amount of light collected from the one side and the other side of the longitudinal intermediate portion, It can be easily processed into a linear shape.

[0039] According to claim 5, the method for processing a long member according to the present invention comprises the steps of: Long, curved section a moving step in which first and second irradiation light emitting means for emitting first and second irradiation light consisting of infrared light or laser light so as to be focused from opposite sides of a longitudinal intermediate portion of the material are positioned opposite each other via the longitudinal intermediate portion, and the longitudinal member moves between the first and second irradiation light emitting means along its longitudinal direction, or the first and second irradiation light emitting means move along the longitudinal direction of the longitudinal member while facing each other from the opposite sides of the longitudinal intermediate portion; a detection step of detecting a strength of a bending tendency of the elongated member as a bending tendency strength while the elongated member is moved in the moving step or while the first and second irradiation light output means are moved; a first irradiation light output-curve habit strength characteristic predetermined as a V-shaped characteristic such that, with the detected bending habit strength value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the detected bending habit strength toward one side at the one side of the longitudinal middle portion, and increases in accordance with an increase in the detected bending habit strength toward the other side at the other side of the longitudinal middle portion; and a second irradiation light output is predetermined as a V-shaped characteristic such that, with the detected bending habit strength value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the detected bending habit strength toward one side at the one side of the longitudinal middle portion, and increases in accordance with an increase in the detected bending habit strength toward the other side at the other side of the longitudinal middle portion. a control step of controlling the first irradiation light emitting means to emit, as the first irradiation light, a first irradiation light output set in accordance with the bending tendency strength detected in the detection step based on a first irradiation light output-bending tendency strength characteristic, and controlling the second irradiation light emitting means to emit, as the second emitted light, a second irradiation light output set in accordance with the bending tendency strength detected in the detection step based on a second irradiation light output-bending tendency strength characteristic, so as to correct the bending tendency of the longitudinal member in the moving step or the movements of the first and second irradiation light emitting means, In the control step, the first irradiation light output-bending tendency strength characteristic is set to be larger at the first irradiation light output at the one side of the longitudinal intermediate portion than the second irradiation light output at the one side of the longitudinal intermediate portion of the second irradiation light output-bending tendency strength characteristic, while the second irradiation light output at the other side of the longitudinal intermediate portion of the second irradiation light output-bending tendency strength characteristic is set to be larger at the second irradiation light output at the other side of the longitudinal intermediate portion than the first irradiation light output at the other side of the longitudinal intermediate portion of the first irradiation light output-bending tendency strength characteristic, The longitudinal member having a bent tendency is corrected into a straight line in accordance with the difference between the amount of heat based on both the amount of light that the first irradiation light emitting means focuses in the control step the first emitted light from the one side of the longitudinal intermediate portion in accordance with the detected bending strength and the amount of light that the second irradiation light emitting means focuses in the control step the second emitted light from the other side of the longitudinal intermediate portion in accordance with the detected bending strength.

[0040] According to this method for processing a longitudinal member, Longitudinal members that have a tendency to bend are In its crookedness According to a difference between the amount of heat generated based on both the amount of heat generated by the first irradiation light emitting means condensing the first emitted light from one side of the longitudinal intermediate portion in accordance with the detected bending strength in the control step and the amount of heat generated by the second irradiation light emitting means condensing the second emitted light from the other side of the longitudinal intermediate portion in accordance with the detected bending strength in the control step, It can be easily straightened into a linear shape.

[0041] According to claim 6, the method for processing a long member according to the present invention comprises the steps of: Straight longitudinal section Length of material Hand direction middle part a moving step in which the first and second irradiation light emitting means, which emit first and second irradiation light consisting of infrared light or laser light so as to be focused from opposite sides of the longitudinal intermediate portion, are positioned opposite to each other from the opposite sides via the longitudinal intermediate portion, and the longitudinal member moves between the first and second irradiation light emitting means along its longitudinal direction, or the first and second irradiation light emitting means move along the longitudinal direction of the longitudinal member while facing each other from the opposite sides of the longitudinal intermediate portion; a setting step of setting a curvature required for bending a straight elongated member into a predetermined curved shape as a set curvature; a first irradiation light output-curvature characteristic predetermined as a V-shaped characteristic such that, with the set curvature value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the set curvature toward one side of the longitudinal middle portion, and increases in accordance with an increase in the set curvature toward the other side of the longitudinal middle portion; and a second irradiation light output is predetermined as a V-shaped characteristic such that, with the set curvature value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the set curvature toward one side of the longitudinal middle portion, and increases in accordance with an increase in the set curvature toward the other side of the longitudinal middle portion. Determined and a control step of controlling the first irradiation light emitting means to emit, as the first irradiation light, a first irradiation light output set at an amount corresponding to the set curvature based on the first irradiation light output-curvature characteristic, and controlling the second irradiation light emitting means to emit, as the second irradiation light, a second irradiation light output set at an amount corresponding to the set curvature based on the second irradiation light output-curvature characteristic, so as to bend the linear elongate member in the moving step, in accordance with the movement of the elongate member or the movement of the first and second irradiation light emitting means, In the control step, the first irradiation light output-curvature characteristic is set so that the first irradiation light output at the one side of the longitudinal intermediate portion is larger than the second irradiation light output at the one side of the longitudinal intermediate portion of the second irradiation light output-curvature characteristic, and the second irradiation light output-curvature characteristic is set so that the second irradiation light output at the other side of the longitudinal intermediate portion is larger than the first irradiation light output at the other side of the longitudinal intermediate portion of the first irradiation light output-curvature characteristic, The linear longitudinal member is bent into the predetermined curved shape according to a difference between the amount of heat generated based on both the amount of heat generated by the first irradiation light emitting means concentrating the first emitted light in the control step from the one side to the longitudinal intermediate portion in accordance with the set curvature and the amount of heat generated by the second irradiation light emitting means concentrating the second emitted light in the control step from the other side to the longitudinal intermediate portion in accordance with the set curvature. .

[0042] According to this method for processing a longitudinal member, a linear longitudinal portion the material is heated according to a difference between the amount of heat generated by the first irradiation light emitting means concentrating the first emitted light in the control step from one side of the intermediate portion in the longitudinal direction in accordance with the set curvature and the amount of heat generated by the second irradiation light emitting means concentrating the second emitted light in the control step from the other side of the intermediate portion in the longitudinal direction in accordance with the set curvature, The bending process can be smoothly performed according to the curvature. Can be constructed do.

[0043] According to claim 7, the method for processing a long member according to the present invention comprises the steps of: Straight longitudinal section a moving step in which the longitudinal member moves between the first and second irradiation light emitting means along its longitudinal direction, with the first and second irradiation light emitting means positioned so as to face each other from opposite sides of a longitudinal intermediate portion of the longitudinal member, or the first and second irradiation light emitting means move along the longitudinal direction of the longitudinal member while facing each other from the opposite sides of the longitudinal intermediate portion; a setting step for setting first and second irradiation light outputs required for bending a linear elongated member into a predetermined wave shape, the first irradiation light output being set as a first periodic wave irradiation light output so as to change in response to a change in the phase of a first periodic wave curve, and the second irradiation light output being set as a second periodic wave irradiation light output so as to change in response to a change in the phase of a second periodic wave curve that is in the opposite phase to the phase of the first periodic wave curve; With regard to the first and second periodic wave irradiation light outputs in the setting step, the first irradiation light output means focuses the first periodic wave irradiation light output from one of both opposing sides of the longitudinal intermediate portion as a first irradiation light made of infrared light or laser light while changing the first periodic wave irradiation light output over time in accordance with a change in the phase of the first periodic wave curve, and the second irradiation light output means focuses the second periodic wave irradiation light output from the other of both opposing sides of the longitudinal intermediate portion as a second irradiation light made of infrared light or laser light while changing the second periodic wave irradiation light output over time in accordance with a change in the phase of the second periodic wave curve, so that the linear longitudinal member is bent into the predetermined wave shape under the movement of the longitudinal member in the moving step or the movement of the first and second irradiation light output means, The longitudinal member is bent into the predetermined wave shape by an amount of heat based on the difference in the amount of light focused from the one side and the other side of the first and second irradiation light in the focusing step with respect to the longitudinal intermediate portion.

[0044] According to this method for processing a longitudinal member, a linear longitudinal portion The material isAt the longitudinal center The difference between the two heating amounts based on the amounts of the first and second irradiation lights focused from one side and the other side with respect to the longitudinal intermediate portion in the focusing step is a predetermined value. Good bending into wave shape Can be constructed do.

[0045] According to claim 8, the method for processing a long member according to the present invention comprises the steps of: In manufacturing longitudinal members , the relevant chief palm part a moving step in which the longitudinal member moves between the first and second irradiation light emitting means along its longitudinal direction, with the first and second irradiation light emitting means positioned so as to face each other from opposite sides of a longitudinal intermediate portion of the longitudinal member, or the first and second irradiation light emitting means move along the longitudinal direction of the longitudinal member while facing each other from the opposite sides of the longitudinal intermediate portion; a setting step of setting first and second irradiation light outputs required for processing the elongated member into a straight line to be the same value; a focusing step in which, with respect to the first and second irradiation light outputs, the first irradiation light output is focused as the first irradiation light by the first irradiation light output means from one of the opposing sides to the longitudinal intermediate portion, and the second irradiation light output is focused as the second irradiation light by the second irradiation light output means from the other of the opposing sides to the longitudinal intermediate portion, so as to process the longitudinal intermediate portion into a straight line under the movement of the longitudinal member in the moving step or the movement of the first and second irradiation light output means, In manufacturing the longitudinal member, the longitudinal member is processed into a straight line by applying heating amounts based on the same amounts of light focused from both the one side and the other side of the first and second irradiation light in the focusing step to the longitudinal intermediate portion.

[0046] According to this method for processing a longitudinal member, In manufacturing the elongated member, the elongated member is heated by respective amounts of heat based on the same amounts of light collected from one side and the other side of the elongated intermediate portion of the first and second irradiation lights in the light collecting step, It can be easily processed into a straight line.

[0047] The reference symbols in parentheses for each of the above means indicate the corresponding relationship with the specific means described in the embodiments described later. [Brief description of the drawings]

[0048] [Figure 1] 1 is a block circuit diagram showing a first embodiment of a processing device for a long member to which the present invention is applied. [Diagram 2] 4 is a part of a flowchart showing a straightening program executed by a CPU in the first embodiment. [Diagram 3] 4 is a part of a flowchart showing a straightening program executed by a CPU in the first embodiment. [Figure 4] 4 is a graph showing the relationship between infrared light output and bending tendency strength in the first embodiment. [Diagram 5] 4 is a graph showing the infrared light output over time in the first embodiment. [Figure 6] FIG. 4 is a block circuit diagram showing a second embodiment of the processing device for a long member to which the present invention is applied. [Figure 7] 13 is a part of a flowchart showing a bending program executed by a CPU in the second embodiment. [Figure 8]13 is a part of a flowchart showing a bending program executed by a CPU in the second embodiment. [Figure 9] 13 is a graph showing the relationship between infrared light output and curvature in the second embodiment. [Figure 10] FIG. 13 is a sine wave waveform diagram showing the relationship between the phase of each infrared light output in the third embodiment of the present invention. [Figure 11] FIG. 13 is a diagram showing a part of a wire that has been subjected to a wavy bending process in the third embodiment. [Figure 12] 13 is a part of a flowchart showing a bending program executed by a CPU in the third embodiment. [Figure 13] 13 is a part of a flowchart showing a bending program executed by a CPU in the third embodiment. [Figure 14] 13 is a part of a flowchart showing a straight line machining program illustrating a main part of a fourth embodiment of the present invention. [Figure 15] 13 is a part of a flowchart showing a straight line machining program illustrating a main part of the fourth embodiment. [Figure 16] 13 is a graph showing the infrared light output over time in the fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0049] Hereinafter, embodiments of the present invention will be described with reference to the drawings. (First embodiment) FIG. 1 shows a first embodiment of a processing device for a longitudinal member to which the present invention is applied. In this first embodiment, a covered electric wire 10 is adopted as the longitudinal member. The covered electric wire 10 is composed of one conductor wire 11 and a covering 12. The covering 11 is formed so as to cover the conductor wire 11 with an electrical insulating material. The covered electric wire 10 is wound on a drum DR for storing covered electric wires (see FIG. 1) located at the bottom of FIG. 1, and the covered electric wire 10 is unwound at its tip end (the upper end shown in FIG. 1) from a drum DRb of the drum device DR for storing covered electric wires via rollers R and extends.

[0050] The covered electric wire storage drum device DR has a U-shaped support DRa and a drum DRb, and the support DRa is disposed on a support base with its bottom wall at the position shown in Fig. 1. The drum DRb is rotatably supported by a support shaft extending upward (toward the front of the paper in Fig. 1) from the bottom wall of the support DRa between both arm walls rising from the bottom wall (rising toward the front of the paper in Fig. 1), and the covered electric wire 10 is wound around the drum DRb so as to be unwound. The roller R is rotatably supported by a support shaft rising from the support base below a pair of rollers 31, 32 (described later) in Fig. 1 (rising from the paper in Fig. 1 in the same direction as the both arm walls).

[0051] Accordingly, the coated electric wire 10 is unwound from the drum DRb as it is pulled out on its axis by a pair of rollers 23, 24 as described below, and moves upward in FIG. 1 (upward along the paper surface in FIG. 1) via the roller R as the rollers rotate.

[0052] In the first embodiment, the pull-out force of the pair of rollers 23, 24 is large enough to rewind the coated electric wire 10 from the drum DRb. If the pull-out force of the pair of rollers 23, 24 is insufficient with the rotational force of the motor 21, the drum DRb may be secured by a drum motor (not shown).

[0053] Specifically, the rotation of the drum motor is detected by a drum encoder (not shown), and the CPU 61 controls the drum motor via a drum motor control circuit (not shown) so that the detected rotation coincides with the detection result of the encoder 22 that detects the rotation of the motor 21, thereby smoothly moving the insulated electric wire 10 via each pair of rollers 23, 24 and 31, 32.

[0054] In addition, in the first embodiment, when the insulated electric wire 10 is rewound from the drum DRb in the upward direction in FIG. 1 (the upward direction along the paper surface in FIG. 1), the insulated electric wire 10 has a tendency to bend around its axis to the left side in FIG. 1 (the left side along the paper surface in FIG. 1).

[0055] In the first embodiment, the processing device serves as a processing device (hereinafter, referred to as processing device D) suitable for processing the coated electric wire 10 to correct the above-mentioned bending tendency.

[0056] The processing device D includes two feed mechanisms 20 and 30 required for feeding the coated electric wire 10 as a workpiece in its longitudinal direction. Hereinafter, in the first embodiment, of the two feed mechanisms 20 and 30, the feed mechanism 20 is referred to as a main feed mechanism 20, and the feed mechanism 30 is referred to as an auxiliary feed mechanism 30.

[0057] The main feed mechanism 20 includes a motor 21, an encoder 22, and a pair of rollers 23, 24. The motor 21 is a servo motor (hereinafter also referred to as servo motor 21), and an encoder 22 is coaxially supported on a rotating shaft 21a of the servo motor 21 from the anti-load side of the servo motor 21. The encoder 22 is a rotary encoder, and the encoder 22 detects the rotation of the rotating shaft 21a of the motor 21 as the rotation of the motor 21 and outputs it to a microcomputer 60 (described later).

[0058] Of the pair of rollers 23, 24, roller 23 is rotatably supported by support shaft 23a that stands upward (toward the viewer in FIG. 1) from the support base. Roller 23 has a groove formed on its outer periphery that is concave in cross section. Accordingly, roller 23 abuts against the tip of insulated electric wire 10 at the groove from the left side in FIG. 1.

[0059] On the other hand, the roller 24 is rotatably supported by a support shaft 24a erected upward (toward the viewer in FIG. 1) from the support stand on the right side of the insulated electric wire 10 in FIG. 1 so as to be positioned opposite the roller 23 through the tip of the insulated electric wire 10. The roller 24 is formed on its outer periphery as a groove having a concave cross section, similar to the groove of the roller 23. Accordingly, the roller 24 abuts against the tip of the insulated electric wire 10 through the groove so as to be opposite the groove of the roller 23 through the tip of the insulated electric wire 10.

[0060] As a result, the pair of rollers 23, 24 hold the tip end of the insulated electric wire 10 so as to sandwich it between their respective grooves.

[0061] Here, the motor 21 is disposed on the support base so that its rotating shaft 21a extends upward (toward the viewer in FIG. 1). With this arrangement, the roller 23 is coaxially supported on the output end of the rotating shaft 21a of the motor 21 so that its groove faces the groove of the roller 24 via the covered electric wire 10, as described above. The roller 24 is rotatably supported by the support shaft 24a which stands upward from the support base (toward the viewer in FIG. 1).

[0062] The sub-feed mechanism 30 is composed of a pair of rollers 31, 32 corresponding to the pair of rollers 23, 24 of the main feed mechanism 20. Of the pair of rollers 31, 32, roller 31 is rotatably supported by a support shaft 31a standing upward (toward the front of the paper in FIG. 1) from the support base. The roller 31 has a groove portion formed on its outer periphery that is concave in cross section, similar to the groove portion of roller 23. Accordingly, the roller 31 abuts, with its groove portion, against the lower portion of the coated electric wire 10 as shown in FIG. 1 from the left side as shown in FIG. 1.

[0063] On the other hand, roller 32 is rotatably supported by support shaft 32a erected upward (toward the viewer in FIG. 1) from the support stand on the right side of covered electric wire 10 in FIG. 1 so as to be located opposite roller 31 through the rear end of covered electric wire 10. Roller 32 is formed at its outer periphery as a groove having a concave cross section, similar to the groove of roller 23. Accordingly, roller 32 abuts against the lower part of covered electric wire 10 in the figure so as to be opposite the groove of roller 31 through the rear end of covered electric wire 10.

[0064] As a result, the pair of rollers 31, 32 hold the lower portion of the coated electric wire 10 in a sandwiching manner in each groove.

[0065] According to the main feed mechanism 20 and the sub-feed mechanism 30 thus configured, the insulated electric wire 10 moves upward in Fig. 1 (upward along the paper in Fig. 1) under the rotation of both rollers 31, 32 in the directions of the arrows in Fig. 1 in response to the rotation of both rollers 23, 24 in the directions of the arrows in Fig. 1 accompanying the rotation of the motor 21. Note that each of the rollers 24, 31, and 32 rotates due to the movement of the insulated electric wire 10 upward (upward along the paper in Fig. 1) in response to the rotation of the roller 23 linked to the rotation of the motor 21.

[0066] As shown in FIG. 1, the processing device D includes two infrared lamp devices 40 and 50. The two infrared lamp devices 40 and 50 are arranged to project infrared rays from the longitudinal middle portion 13 (axial middle portion 13) of the coated electric wire 10. And then, from both the left and right sides Of the two infrared lamp devices 40, 50, the infrared lamp device 40 is a single-point light-collecting type infrared lamp device, and includes a device body 41 and an infrared lamp 42 supported by the device body 41.

[0067] The device body 41 is disposed on the support base, and includes a concave hemispherical reflective surface 41a. Accordingly, the device body 41 is disposed on the support base so that the reflective surface 41a faces the coated electric wire 10, as shown in Fig. 1. In the first embodiment, the radius of the concave hemispherical reflective surface 41a is larger than the radius of the spherical lamp portion of the infrared lamp 42.

[0068] The infrared lamp 42 consists of a lamp (having a spherical lamp portion) that radially emits infrared rays as infrared light, and the infrared lamp 42 is supported by the device body 41 so that the central portion of the spherical lamp portion is positioned at the radial center (described later) of the reflective surface 41a of the device body 41.

[0069] As described above, the radius of the concave hemispherical reflecting surface 41a is larger than the radius of the spherical lamp portion of the infrared lamp 42. Therefore, the infrared light radially emitted from the spherical lamp portion of the infrared lamp 42 is reflected by the concave hemispherical reflecting surface 41a, as shown in FIG. 1, and is incident on the longitudinal intermediate portion 13 of the insulated electric wire 10 (corresponding to the radial center of the reflecting surface 41a). Then, from the left It is designed to glow.

[0070] The infrared lamp device 50 has a similar configuration to the infrared lamp device 40, and is disposed on the support base at a position symmetrical to the infrared lamp device 40 with respect to the coated electric wire 10.

[0071] The infrared lamp device 50 is composed of a device body 51 and an infrared lamp 52 corresponding to the device body 41 and the infrared lamp 42 of the infrared lamp device 40. The device body 51 has a similar configuration to the device body 41, and has a concave hemispherical reflecting surface 51a similar to the concave hemispherical reflecting surface 41a of the device body 41.

[0072] Similar to infrared lamp 42, infrared lamp 52 consists of a lamp (having a spherical lamp portion) that radially emits infrared rays as infrared light, and infrared lamp 52 is supported by device body 51 so that the central portion of the spherical lamp portion is positioned at the radial center (described later) of concave hemispherical reflecting surface 51a of device body 51.

[0073] Here, the radius of the concave hemispherical reflecting surface 51a is larger than the radius of the spherical lamp portion of the infrared lamp 52, similarly to the case of the concave hemispherical reflecting surface 41a. Therefore, the infrared light emitted radially from the spherical lamp portion of the infrared lamp 52 is reflected by the concave hemispherical reflecting surface 51a as shown in FIG. , covered A longitudinal middle portion 13 of the covered wire 10 Then, collect from the right side. In the first embodiment, both infrared lamps 42, 52 have the same infrared (infrared light) emission performance.

[0074] Moreover, the processing device D includes a microcomputer 60. The microcomputer 60 includes a DC power supply PS, a CPU 61, a ROM 62, a RAM 63, and a non-volatile memory 64, as shown in FIG.

[0075] The DC power supply PS supplies power to each component of the microcomputer 60, thereby putting each component into operation.

[0076] The CPU 61 executes the straightening program in accordance with the flow charts shown in Figures 2 and 3, and during execution, the CPU 61 performs the performance processing required to control the motor control circuit 70 and both infrared lamp control circuits 80, 90 according to the detection outputs of the encoder 22, the bending tendency detector S1, and the linear movement monitoring camera S2 under the operation of the operation display unit 60a. The ROM 62 is an element that stores the above-mentioned straightening program in advance so that it can be read by the CPU 61. The RAM 63 is an element that temporarily stores the processing data by the CPU 61. The non-volatile memory 64 is an element that stores and holds data without the supply of power.

[0077] The operation display unit 60a is an element that constitutes a tablet terminal together with the microcomputer 60. The operation display unit 60a is composed of a touch panel of the tablet terminal. The operation display unit 60a outputs operation commands to the CPU 61 in response to touch operations, and also displays information in response to commands from the CPU 61.

[0078] The bend tendency detector S1 is composed of a load sensor. The bend tendency detector S1 clamps the insulated electric wire 10 from both the left and right sides as shown in FIG. 1 with a pair of rollers Sa and Sb, and detects the degree of bending of the insulated electric wire 10 in the left and right directions as shown in FIG. 1 based on the reaction force of the insulated electric wire 10 acting on the pair of rollers S1 and S2, as the strength of the bend tendency, and outputs it to the CPU 61.

[0079] Moreover, the linearly moving monitoring camera S2 photographs the movement of the insulated electric wire 10 toward its tip end, detects the movement length corresponding to the photographing movement as the photographing movement length, and outputs it to the CPU 61. The motor control circuit 70 controls the servo motor 21 in response to a control command from the CPU 61.

[0080] Both infrared lamp control circuits 80, 90 are each composed of a thyristor circuit, and the thyristor circuit is a circuit that rectifies AC power from a commercial power source (not shown) by means of a thyristor.

[0081] That is, of the two infrared lamp control circuits 80, 90, the infrared lamp control circuit 80 uses its thyristor circuit to convert the AC output from the commercial power supply into a rectified output by phase control based on a gate signal from the CPU 61, and supplies it to the infrared lamp device 40.

[0082] Accordingly, the infrared lamp 42 of the infrared lamp device 40 is controlled to emit infrared light in an amount corresponding to the rectified output. The gate signal output from the CPU 61 is output at a timing required for a rectified output corresponding to the infrared light output of the infrared lamp 42, which will be described later, to be formed by a thyristor circuit of the infrared lamp control circuit 80.

[0083] Similarly to the infrared lamp control circuit 80, the infrared lamp control circuit 90 also uses its thyristor circuit to convert the AC output from the commercial power supply into a rectified output by performing phase control based on a gate signal from the CPU 61, thereby supplying the rectified output to the infrared lamp device 50.

[0084] Accordingly, the infrared lamp 52 of the infrared lamp device 50 is controlled to emit infrared light in an amount corresponding to the rectified output. The gate signal output from the CPU 61 to the infrared lamp device 50 is output from the CPU 61 at a timing required for a rectified output corresponding to the infrared light output of the infrared lamp 52, which will be described later, to be formed by a thyristor circuit of the infrared lamp control circuit 90.

[0085] In the first embodiment configured as described above, when the insulated electric wire 10 as the workpiece is subjected to the straightening process, the insulated electric wire 10 is assumed to be an insulated electric wire having a bent tendency as described above. Here, the bent tendency refers to a tendency of the insulated electric wire 10 to bend from the right side to the left side in Fig. 1. The insulated electric wire 10 is assumed to be held by a pair of rollers 23, 24 of the main work feed mechanism 20 and a pair of rollers 31, 32 of the sub-feed mechanism 30 as shown in Fig. 1.

[0086] In this state, when the processing device D is put into operation, the microcomputer 60 starts the execution of the straightening processing program in the CPU 61 according to the flow charts shown in FIGS.

[0087] Thus, the CPU 61 judges whether or not there is a request for straightening in step 200 of Fig. 2. At the current stage, if a request for straightening is made by touching the operation display unit 60a, the judgment in step 200 is "YES".

[0088] Then, in the next step 210, it is determined whether or not the type of work has been input. At the current stage, if the type of work is input as an insulated electric wire by touching the operation display unit 60a, the determination in step 210 is "YES." Accordingly, in the work type setting process in step 211, the work is set as an insulated electric wire 10.

[0089] After such setting, in the next step 220, it is determined whether or not the corrected processing length of the work has been input. If the corrected processing length of the insulated electric wire 10 is input as L by touching the operation display unit 60a, the determination in step 220 becomes "YES". Next, in the process of setting the corrected processing length of the work in step 221, the corrected processing length of the work is set as L. In the first embodiment, the corrected processing length L refers to the length from the longitudinal middle part 13 of the insulated electric wire 10 to the downward side of the insulated electric wire 10 in FIG. 1, as shown in FIG.

[0090] Thus, in the next step 222, a work movement length setting process, the movement length of the insulated electric wire 10 is set to a length similar to the straightening processing length L of the insulated electric wire 10. This means that when the insulated electric wire 10 is straightened over the straightening processing length L, the insulated electric wire 10 moves by the movement length L toward its tip end.

[0091] Thereafter, in step 230, it is determined whether or not the straightening process is to be started. If the user inputs "start of straightening process" by touching the operation display unit 60a, the determination in step 230 becomes "YES".

[0092] Next, in the next step 231, a motor drive process is performed. In the motor drive process, the motor control circuit 70 starts driving the motor 21 of the work feed mechanism 20 based on a command from the CPU 61. Accordingly, the roller 23 starts rotating in conjunction with the rotation of the motor 21. Then, the insulated electric wire 10 starts moving upward in the figure as both rollers 23, 24 rotate in the directions of the arrows shown in FIG. 1. Note that both rollers 31, 32 of the sub-feed mechanism 30 rotate in the rotation direction shown in FIG. 1 as the insulated electric wire 10 moves as described above, thereby assisting the movement of the insulated electric wire 10.

[0093] After the process of step 231, an input process of the bending tendency strength of the work is performed in step 232. In this input process, when the bending tendency strength of the insulated electric wire 10 that has started to move as described above is detected by the bending tendency strength detector S1, the detection output of the bending tendency strength detector S1 is input to the CPU 61. In the first embodiment, the bending tendency strength of the insulated electric wire 10 from the right side to the left side described above is detected by the bending tendency strength detector S1 and input to the CPU 61.

[0094] Next, in step 233 (see FIG. 3), a setting process is performed for the infrared light output of each of the infrared lamps with respect to the bending tendency strength. In this setting process, the infrared light output of each of the infrared lamps 42, 52 is set according to the detection output of the bending tendency strength detector S1 based on the infrared light output-bending tendency strength characteristic that shows the relationship between the bending tendency strength (N) and the infrared light output (W) shown in FIG. 4, as follows. Note that in this first embodiment, the above-mentioned infrared light output refers to the infrared light emission amount.

[0095] 4 shows both graphs 1 and 2 in this first embodiment. Graph 1 is a V-shaped graph showing the infrared light output-bending tendency strength characteristic (hereinafter, indicated by reference symbol 1) of the infrared lamp 42. On the other hand, graph 2 is a V-shaped graph showing the infrared light output-bending tendency strength characteristic (hereinafter, indicated by reference symbol 2) of the infrared lamp 52. Both of the infrared light output-bending tendency strength characteristics 1 and 2 are stored in the non-volatile memory 63 of the microcomputer 60.

[0096] In the coordinate plane of Fig. 4 Graphs 1 and 2 are in the first and second quadrants of the coordinate plane. The axis is connected to the left of its origin (0). The left side of Figure 1 shows the axis of the workpiece. The horizontal axis represents the strength of bending tendency Ba toward the side. The right side of Figure 1 shows the axis of the workpiece In the coordinate plane of FIG. 4, the vertical axis is above the origin and the infrared light output I is It represents. As described above, since both graphs 1 and 2 show that the infrared light output-bending tendency strength characteristics 1 and 2 are V-shaped, it can also be said that the infrared light output-bending tendency strength characteristics 1 and 2 are V-shaped infrared light output-bending tendency strength characteristics. This means that, as shown in Fig. 4, both infrared light output-bending tendency strength characteristics 1 and 2 have a characteristic in which, with respect to the origin 0 of the horizontal axis as a reference, in the first quadrant, the infrared light output I increases linearly with an increase in bending strength Bb, and in the second quadrant, the infrared light output I increases linearly with an increase in bending strength Ba.

[0097] where , the first coordinate plane of Fig. 4 In one quadrant, the graph 2 (Infrared light output - bending resistance characteristics 2) The gradient of the graph 1 (Infrared light output - bending resistance characteristic 1) This is larger than the slope. As shown in Figure 1 on the right This is to correct the strength of the bend toward the side. On the other hand, in the second quadrant, 1 (Infrared light output - bending resistance characteristic 1) The slope of the graph 2 (Infrared light output - bending resistance characteristics 2) This is larger than the slope. As shown in Figure 1 on the left This is to correct the tendency for the wire to bend to the side.

[0098] Incidentally, the reason why the gradient of graph 1 in the first quadrant is set to a value greater than zero, while the gradient of graph 2 in the second quadrant is set to a value greater than zero, will be explained below.

[0099] As described above, the insulated electric wire 10, which is the workpiece, has a tendency to bend to the left. In order to correct this tendency to bend to the left, it is possible to perform the correction process by irradiating infrared light only from the infrared lamp 42. In this case, the right side of the insulated electric wire 10 is not irradiated with infrared light from the infrared lamp 52, and the right side of the insulated electric wire 10 is placed in a natural atmosphere (air) only. For this reason, the temperature of the right side of the insulated electric wire 10 is not stable like the temperature of the left side of the insulated electric wire 10. This means that the tendency to bend to the left of the insulated electric wire 10 cannot be stably corrected by irradiating infrared light only from the infrared lamp 42.

[0100] On the other hand, unlike the above, if the insulated electric wire 10 has a tendency to bend to the right, in order to correct the tendency to bend to the right, it is not possible to stably correct the tendency to bend to the right of the insulated electric wire 10 by only irradiating infrared rays from the infrared lamp 52 for reasons similar to those described above.

[0101] Therefore, as described above, in order to make the gradient of graph 1 greater than zero in the first quadrant, the infrared lamp 42 also irradiates infrared light, while in order to make the gradient of graph 2 greater than zero in the second quadrant, the infrared lamp 52 also irradiates infrared light. This makes it possible to stably correct the bending tendency of the insulated electric wire 10 without being affected by the atmospheric temperature. In this embodiment, the infrared light output I in graphs 1 and 2 is greater than the infrared light output value 0 with respect to the bending tendency strength value 0 at the origin of the coordinates in FIG. 4.

[0102] Therefore, at the current stage, if the strength of the leftward bend tendency, which is the detection output of the bend tendency strength detector S1, is Ba1 as shown in FIG. 4, the infrared light output (infrared light emission amount) of the infrared lamp 42 is set to the infrared light output I1 corresponding to point P1 on graph 1, while the infrared light output (infrared light emission amount) of the infrared lamp 52 is set to the infrared light output I2 corresponding to point P2 on graph 2.

[0103] In this manner, the infrared light outputs I1 and I2 are set by the CPU 61 in accordance with the detection output of the bending tendency detector S1 based on the infrared light output-bending tendency strength characteristics 1 and 2 stored in the non-volatile memory 64.

[0104] Thereafter, in the next step 234, a process of lighting up both infrared lamps is performed. In this lighting process, the CPU 61 outputs a gate signal corresponding to the infrared light output I1 (see FIG. 5) already set in step 233 to the infrared lamp control circuit 80.

[0105] Accordingly, the infrared lamp control circuit 80 supplies the rectified output formed by the thyristor circuit that is turned on based on the gate signal from the CPU 61 to the infrared lamp 42 of the infrared lamp device 40. As a result, the infrared lamp 42 is turned on based on the rectified output (corresponding to the infrared light output I1) from the infrared lamp control circuit 80, and emits infrared light in an amount corresponding to the rectified output.

[0106] This means that the infrared ray is emitted from the infrared lamp 42 to the longitudinal intermediate portion 13 of the insulated electric wire 10 via the reflective surface 41a. Then, from the left The amount of emitted infrared light means an infrared light emission amount corresponding to the infrared light output I1.

[0107] That is, the infrared lamp 42 is turned on in response to a rectified output from the infrared lamp control circuit 80, and emits an amount of infrared light corresponding to the rectified output (corresponding to the infrared light output I1), which is focused on the longitudinal middle portion 13 of the insulated electric wire 10 from its left side via the reflective surface 41a.

[0108] Furthermore, the CPU 61 outputs a gate signal corresponding to the infrared light output I2 already set in step 233 to the infrared lamp control circuit 90. In other words, the infrared lamp control circuit 90 supplies the rectified output formed by the thyristor circuit that is turned on based on the gate signal from the CPU 61 to the infrared lamp 52 of the infrared lamp device 50. As a result, the infrared lamp 52 is turned on based on the rectified output (corresponding to the infrared light output I2) from the infrared lamp control circuit 90, and emits infrared light in an amount corresponding to the rectified output.

[0109] This means that the amount of infrared light emitted from the infrared lamp 52 and focused on the right side of the longitudinal intermediate portion 13 of the insulated electric wire 10 via the reflecting surface 51a is the amount of infrared light emission corresponding to the infrared output I2.

[0110] That is, the infrared lamp 52 is turned on in response to a rectified output from the infrared lamp control circuit 90, and emits an amount of infrared light corresponding to the rectified output (corresponding to the infrared light output I2), which is focused on the longitudinal middle portion 13 of the insulated electric wire 10 from the right side via the reflective surface 51a.

[0111] In this manner, when the infrared light from the infrared lamp 42 is focused on the longitudinal middle portion 13 of the insulated electric wire 10 from its left side in an amount corresponding to the infrared light output I1, and the infrared light from the infrared lamp 52 is focused on the longitudinal middle portion 13 of the insulated electric wire 10 from its right side in an amount corresponding to the infrared light output I2, the insulated electric wire 10 has an infrared light emission amount corresponding to the infrared light output I1 (see graph 3 in FIG. 5 ) and an infrared light emission amount corresponding to the infrared light output I2 (see graph 4 in FIG. 5 ) at the longitudinal middle portion 13. Based on both amount of heat By the difference Then, the product is subjected to corrective processing.

[0112] As a result, the tendency of the insulated electric wire 10 to bend to the left at the longitudinal intermediate portion 7h13 is corrected. Both red External light emission The difference between the two heating amounts based on Since not only the left side but also the right side of the longitudinal middle portion 13 are irradiated with infrared light, the longitudinal middle portion 13 can be stably straightened without being affected by the atmospheric temperature.

[0113] As the insulated electric wire 10 moves toward its tip end, the longitudinal intermediate portion 13 to be irradiated with infrared light changes as described above. However, the longitudinal intermediate portion 13 which changes in sequence in this manner has the same infrared light emission amount corresponding to the infrared light output I1 from the infrared lamp 42 and the same infrared light emission amount corresponding to the infrared light output I2 from the infrared lamp 52 as described above. Depending on the difference in heating amount Therefore, the cutting edge can be stably corrected into a straight line.

[0114] In such a straightening process, the linearly moving monitoring camera S2 detects the moving length of the insulated electric wire 10 toward its tip end as the photographing moving length. If the photographing moving length does not reach the above-mentioned set moving length L at the current stage, the straightening process length L has not been moved, and the result is determined as "NO" in the next step 240.

[0115] Thereafter, when the detected photographing movement length by the linearly moving monitoring camera S2 reaches the set movement length L, the determination in step 240 becomes "YES." This means that the insulated electric wire portion corresponding to the straightening processing length L of the insulated electric wire 10 has been straightened due to its leftward bending tendency.

[0116] When the straightening process is completed in this manner, the motor 21 is stopped by the CPU 61 via the motor control circuit 70 in the motor drive stop process in the next step 241. Accordingly, the movement of the insulated electric wire 10 toward its tip end is stopped. Next, in the both infrared lamps turn-off process in step 242, the both infrared lamps 42, 52 are turned off by the CPU 61 via the both infrared lamp control circuits 80, 90.

[0117] As described above, according to the first embodiment, in the processing device D, when the main feed mechanism 20 rotates by its motor 21 under the driving control of the motor control circuit 70 based on a command from the CPU 61, the roller 23 rotates in conjunction with the motor 21. Accordingly, the insulated electric wire 10 is pulled and moved toward its tip end by the pair of rollers 23, 24 due to the rotation of each of them. At this time, the sub-feed mechanism 30 assists the movement of the insulated electric wire 10 with the pair of rollers 31, 32.

[0118] In addition, in the processing device D, the infrared lamp device 40 is arranged so that its infrared lamp 42 faces the longitudinal middle portion 13 of the insulated electric wire 10 from the left side, while the infrared lamp device 50 is arranged so that its infrared lamp 52 faces the infrared lamp 42 from the right side across the longitudinal middle portion 13 of the insulated electric wire 10.

[0119] With this arrangement, the infrared light output of the infrared lamp 42 is set to an infrared light output I1 (see FIG. 4) in accordance with the bending tendency strength detected by the bending tendency strength detector S1 based on a predetermined infrared light output-bending tendency strength characteristic 1, and the infrared light output of the infrared lamp 52 is set to an infrared light output I2 (see FIG. 4) in accordance with the bending tendency strength detected by the bending tendency strength detector S1 based on a predetermined infrared light output-bending tendency strength characteristic 2.

[0120] With the infrared light outputs I1 and I2 set in this way, the infrared lamp control device 80 is turned on and controlled by the CPU 61 using a gate signal in its thyristor circuit, and outputs a rectified output corresponding to the infrared light output I1 to the infrared lamp device 40, while the infrared lamp control device 90 is turned on and controlled by the CPU 61 using a gate signal in its thyristor circuit, and outputs a rectified output corresponding to the infrared light output I2 to the infrared lamp device 50.

[0121] Accordingly, the infrared lamp device 40 emits infrared light from its infrared lamp 42 in an amount corresponding to the infrared light output I1, while the infrared lamp device 50 emits infrared light from its infrared lamp 52 in an amount corresponding to the infrared light output I2.

[0122] Then, the infrared light emitted by the infrared lamp 42 is reflected by the concave hemispherical reflecting surface 41a of the device body 41 of the infrared lamp device 40 and is focused on the longitudinal middle portion 13 of the insulated electric wire 10 from its left side. On the other hand, the infrared light emitted by the infrared lamp 52 is reflected by the concave hemispherical reflecting surface 51a of the device body 51 of the infrared lamp device 50 and is focused on the longitudinal middle portion 13 of the insulated electric wire 10 from its right side. This means that the infrared light from each of the infrared lamps 42, 52 is focused on the longitudinal middle portion 13 of the insulated electric wire 10 from the opposite left and right sides thereof.

[0123] As a result, the insulated electric wire 10 can be effectively straightened in its leftward bending tendency at its longitudinal intermediate portion 13 by applying an amount of heat based on the difference between the amount of infrared light emission corresponding to the infrared light output I1 and the amount of infrared light emission corresponding to the infrared light output I2.

[0124] Second embodiment Fig. 6 shows a second embodiment of the processing device for a longitudinal member to which the present invention is applied. In this second embodiment, a wire 10a is adopted as the longitudinal member instead of the coated electric wire 10 described in the first embodiment. The wire 10a is held by a pair of rollers 23, 24 of the main feed mechanism 20 and a pair of rollers 31, 32 of the sub-feed mechanism 30, as shown in Fig. 6, in place of the coated electric wire 10 described in the first embodiment, similarly to the coated electric wire 10. In this second embodiment, the processing device serves as a processing device (hereinafter, referred to as processing device Da) suitable for bending the wire 10a.

[0125] The processing device Da has a configuration similar to that of the processing device D (see FIG. 1) described in the first embodiment above, except that the bending tendency strength detector S1 is not employed. However, in this second embodiment, the infrared lamp 42 is configured to focus its emitted infrared light on the longitudinal middle portion 14 (axial middle portion 14) of the wire 10a from its left side, instead of the longitudinal middle portion 13 of the coated electric wire 10 described in the first embodiment. On the other hand, the infrared lamp 52 is configured to focus its emitted infrared light on the longitudinal middle portion 14 of the wire 10a from its right side. This means that the infrared light emitted by each of the infrared lamps 42, 52 is focused on the longitudinal intermediate portion 14 of the wire 10a from both the left and right sides as shown in FIG.

[0126] In the second embodiment, the ROM 62 of the microcomputer 60 pre-stores a bending program in a readable manner, instead of the straightening program described in the first embodiment.

[0127] Accordingly, in the second embodiment, the CPU 61 of the microcomputer 60 executes the bending program according to a flowchart (see Figs. 7 and 8) replacing the flowcharts in Figs. 2 and 3. During execution, the CPU 61 performs the performance processing required to control the motor control circuit 70 and both infrared lamp control circuits 80, 90 according to the detection outputs of the encoder 22 and the linearly moving monitoring camera S2 under touch operation of the operation display unit 60a. The other configurations are the same as those of the first embodiment.

[0128] In the second embodiment configured as above, when bending the wire 10a as the workpiece, the processing device Da is put into operation, and the CPU 61 executes a bending program in accordance with the flowcharts of FIGS.

[0129] Thus, the CPU 61 determines whether or not there is a bending request in step 300 of Fig. 7. If a bending request is input by touching the operation display unit 60a at the current stage, the determination in step 300 becomes "YES".

[0130] Then, in the next step 310, it is determined whether or not the type of work has been input. At the current stage, if the type of work is input as "wire" by touching the operation display unit 60a, the determination in step 310 will be "YES." Accordingly, in the work type setting process in step 311, the work is set as the wire 10a.

[0131] After such settings, in the next step 320, it is determined whether or not the machining dimensions and curvature of the work have been input. If the machining dimensions and curvature of the wire 10a are input by touching the operation display unit 60a, the determination in step 320 becomes "YES." In this second embodiment, the machining dimensions refer to the dimension of the bending length required to bend the wire 10a extending from the longitudinal intermediate portion 14 of the wire 10a to the sub-feed device 30 side. Moreover, the curvature refers to the degree of bending of the wire portion corresponding to the bending length of the wire 10a.

[0132] Thereafter, in the process of setting the curvature and machining dimension of the workpiece in step 321, the machining dimension and curvature inputted by touching the operation display unit 60a as described above are set as the set machining dimension and set curvature. Here, the set machining dimension is set as L1, and the set curvature is set as Ca1.

[0133] Next, in step 330, it is determined whether or not there is a request to start bending. If the start of bending is input by touching the operation display unit 60a, the determination in step 330 becomes "YES". Accordingly, in the motor drive process in the next step 331, the motor control circuit 70 starts driving the motor 21 of the main work feed mechanism 20 based on a command from the CPU 61, as in the first embodiment. Accordingly, the wire 10a smoothly moves upward in FIG. 6 (upward along the paper in FIG. 6) with the rotation of both rollers 23, 24 and both rollers 31, 32 under the rotation of the roller 23 interlocked with the rotation of the motor 21.

[0134] Then, in step 332 in Fig. 8, a process for setting the infrared outputs of both infrared lamps with respect to the set curvature is performed. In this setting process, the infrared light outputs of both infrared lamps 42, 52 are set according to the set curvature based on the infrared light output-curvature characteristics of both infrared lamps 42, 52 which show the relationship between the infrared light output (W) and the curvature (rad / m) as shown in Fig. 9, as follows.

[0135] In the second embodiment, Fig. 9 shows both graphs 3 and 4. Graph 3 is a V-shaped graph showing the infrared light output-curvature characteristic (hereinafter, indicated by reference symbol 3) of the infrared lamp 42. On the other hand, graph 4 is a V-shaped graph showing the infrared light output-curvature characteristic (hereinafter, indicated by reference symbol 4) of the infrared lamp 52. The infrared light output-curvature characteristics 3 and 4 are stored in a non-volatile memory 63 of a microcomputer 60, instead of the infrared light output-curvature characteristic 1 and 2 described in the first embodiment.

[0136] In the coordinate plane of FIG. 9, graphs 3 and 4 are, like those in FIG. 4, It is in the first and second quadrants of the coordinate plane. Also, in the coordinate plane, The horizontal axis is the left side of the origin (0). The left side of Figure 9 shows the axis of the workpiece. The horizontal axis represents the curvature Ca to the right of the origin. The right side of Figure 9 shows the axis of the workpiece 9, the vertical axis represents the infrared light output I above the origin, similarly to the coordinate plane of FIG. As described above, since both graphs 3 and 4 show that the infrared light output-curvature characteristics 3 and 4 are V-shaped, it can also be said that the infrared light output-curvature characteristics 3 and 4 are V-shaped infrared light output-curvature characteristics. This means that, as shown in Fig. 9, both infrared light output-curvature characteristics 3 and 4 have a characteristic in which, with respect to the origin 0 of the horizontal axis as a reference, in the first quadrant, the infrared light output I increases linearly with an increase in the curvature Cb, and in the second quadrant, the infrared light output I increases linearly with an increase in the curvature Ca.

[0137] Here, in the coordinate plane of FIG. 6, in the second quadrant, graph 3( Infrared light output vs. curvature characteristics 3) The gradient of Graph 4( Infrared light output vs. curvature characteristics 4) This is because the wire 10a, which is the workpiece, As shown in Figure 9, This is because the bending process is performed with a curvature Ca toward the side. On the other hand, in the first quadrant, Infrared light output vs. curvature characteristics 4) The gradient of graph 3( Infrared light output vs. curvature characteristics 3) This is larger than the gradient of wire 10. a is shown on the right in Fig. 9 This is because the bending process is performed with a side curvature Cb.

[0138] The reason why the gradient of graph 3 in the first quadrant is set to a value greater than zero, while the gradient of graph 4 in the second quadrant is set to a value greater than zero, is to stably perform bending of wire 10a without being affected by the atmospheric temperature, as in the case described in the first embodiment. In the second embodiment, the infrared light outputs in both graphs 3 and 4 are greater than the infrared light output 0, with respect to the curvature value 0 at the origin of the coordinate system in FIG. 9.

[0139] Therefore, at the current stage, since the set curvature in step 321 is Ca1, the infrared light output (infrared light emission amount) of the infrared lamp 42 becomes the infrared light output I3 corresponding to point P3 on graph 3, while the infrared light output (infrared light emission amount) of the infrared lamp 52 is set to the infrared light output I4 corresponding to point P4 on graph 4.

[0140] In this manner, the infrared light outputs I3 and I4 are set by the CPU 61 in accordance with the set curvature Ca1 based on the infrared light output-curvature characteristics 3 and 4 stored in the non-volatile memory 64.

[0141] Thereafter, in the next step 333, a process of lighting up both infrared lamps is performed. In this lighting process, the CPU 61 outputs a gate signal corresponding to the infrared light output I3 (see FIG. 9) already set in step 332 to the infrared lamp control circuit 80.

[0142] Accordingly, the infrared lamp control circuit 80 supplies the rectified output formed by the thyristor circuit that is turned on based on the gate signal from the CPU 61 to the infrared lamp 42 of the infrared lamp device 40. As a result, the infrared lamp 42 is turned on based on the rectified output (corresponding to the infrared light output I3) from the infrared lamp control circuit 80, and emits infrared light in an amount corresponding to the rectified output.

[0143] This means that the amount of infrared light emitted from the infrared lamp 42 and focused on the longitudinal intermediate portion 14 of the wire 10a via the reflecting surface 41a is an infrared light emission amount corresponding to the infrared light output I3.

[0144] That is, the infrared lamp 42 turns on in response to a rectified output from the infrared lamp control circuit 80, emits an amount of infrared light corresponding to the rectified output (corresponding to the infrared light output I3), and focuses the light on the left side of the longitudinal middle portion 14 of the wire 10a via the reflective surface 41a.

[0145] Furthermore, the CPU 61 outputs a gate signal corresponding to the infrared light output I4 already set in step 332 to the infrared lamp control circuit 90. In other words, the infrared lamp control circuit 90 supplies the rectified output formed by the thyristor circuit that is turned on based on the gate signal from the CPU 61 to the infrared lamp 52 of the infrared lamp device 50. As a result, the infrared lamp 52 is turned on based on the rectified output (corresponding to the infrared light output I4) from the infrared lamp control circuit 90, and emits infrared light in an amount corresponding to the rectified output.

[0146] This means that the amount of infrared light emitted from the infrared lamp 52 and focused on the right side of the longitudinal intermediate portion 14 of the wire 10a via the reflecting surface 51a is an infrared light emission amount corresponding to the infrared light output I4.

[0147] That is, the infrared lamp 52 is turned on in response to a rectified output from the infrared lamp control circuit 90, and emits an amount of infrared light corresponding to the rectified output (corresponding to the infrared light output I4), which is focused on the longitudinal middle portion 14 of the insulated electric wire 10 from the right side via the reflective surface 51a.

[0148] In this way, when infrared light from the infrared lamp 42 is focused on the longitudinal middle portion 14 of the wire 10a from its left side in an amount corresponding to the infrared light output I3, and infrared light from the infrared lamp 52 is focused on the longitudinal middle portion 14 of the wire 10a from its right side in an amount corresponding to the infrared light output I4, the wire 10a is bent at its longitudinal middle portion 14 with an amount of heat based on the difference (infrared light emission amount difference) between the infrared light emission amount corresponding to the infrared light output I3 (see graph 3 in Figure 9) and the infrared light emission amount corresponding to the infrared light output I4 (see graph 4 in Figure 9).

[0149] As a result, the longitudinal intermediate portion 14 of the wire 10a can be bent to the left with a curvature Ca1 due to the difference in the amount of infrared light emitted. Since not only the left side but also the right side of the longitudinal intermediate portion 14 are irradiated with infrared light, the longitudinal intermediate portion 14 can be bent stably without being affected by the atmospheric temperature.

[0150] As the wire 10a moves toward its tip end, the longitudinal intermediate portion 14 to which the infrared light is irradiated changes as described above. However, the longitudinal intermediate portion 14 which changes in sequence in this manner can be stably bent with a curvature Ca1 by heating due to the difference between the amount of infrared light emission corresponding to the infrared light output I3 from the infrared lamp 42 and the amount of infrared light emission corresponding to the infrared light output I4 from the infrared lamp 52, in the same manner as described above.

[0151] In such a bending process, the linearly moving monitoring camera S2 detects the moving length of the wire 10a toward its tip as the photographing moving length. If the photographing moving length does not reach the above-mentioned set processing dimension L1 at the current stage, it is determined as "NO" in the next step 340 because it has not moved by the set processing dimension L1.

[0152] Thereafter, when the detected photographing movement length by the linearly moving monitoring camera S2 reaches the set machining dimension L1, the determination in step 340 becomes "YES." This means that the wire portion of the wire 10a corresponding to the set machining dimension L1 has been bent to the left with the curvature Ca1.

[0153] When the bending process is completed in this manner, the motor 21 is stopped by the CPU 61 via the motor control circuit 70 in the next step 341, which is a motor drive stop process. Accordingly, the movement of the wire 10a toward its tip end is stopped. Next, in the both infrared lamps turn-off process in step 342, the both infrared lamps 42, 52 are turned off by the CPU 61 via the both infrared lamp control circuits 80, 90.

[0154] As described above, according to the second embodiment, in the processing device Da, when the main feed mechanism 20 rotates by its motor 21 under the driving control of the motor control circuit 70 based on a command from the CPU 61, the roller 23 rotates in conjunction with the motor 21. Accordingly, the wire 10a is pulled toward its tip end by the pair of rollers 23, 24 under the rotation of each of them. At this time, the sub-feed mechanism 30 assists the movement of the wire 10a with the pair of rollers 31, 32.

[0155] Also in the second embodiment, similarly to the first embodiment, an infrared lamp 42 and an infrared lamp 52 are disposed opposite each other on the left and right sides of the longitudinal intermediate portion 14 of the wire 10a.

[0156] With this arrangement, the infrared light output of the infrared lamp 42 is set to an infrared light output I3 (see FIG. 9) in accordance with an input curvature C1a (see FIG. 9) by the operation display unit 60a based on a predetermined infrared light output-curvature characteristic 3, and the infrared light output of the infrared lamp 52 is set to an infrared light output I4 (see FIG. 9) in accordance with the input curvature C1a based on a predetermined infrared light output-curvature characteristic 4.

[0157] With the infrared light outputs I3 and I4 set in this way, the infrared lamp control device 80 is ignition-controlled by the CPU 61 using a gate signal in its thyristor circuit to output a rectified output corresponding to the infrared light output I3 to the infrared lamp device 40, and the infrared lamp control device 90 is ignition-controlled by the CPU 61 using a gate signal in its thyristor circuit to output a rectified output corresponding to the infrared light output I4 to the infrared lamp device 50.

[0158] Accordingly, the infrared lamp device 40 emits infrared light from its infrared lamp 42 in an amount corresponding to the infrared light output I3, while the infrared lamp device 50 emits infrared light from its infrared lamp 52 in an amount corresponding to the infrared light output I4.

[0159] Thus, the infrared light emitted by the infrared lamp 42 is reflected by the concave hemispherical reflecting surface 41a of the infrared lamp device 40 and is focused on the longitudinal middle portion 14 of the wire 10a from its left side. On the other hand, the infrared light emitted by the infrared lamp 52 is reflected by the concave hemispherical reflecting surface 51a of the infrared lamp device 50 and is focused on the longitudinal middle portion 14 of the wire 10a from its right side.

[0160] As a result, the wire 10a can be satisfactorily bent to the left at a curvature C1a at its longitudinal intermediate portion 14 with an amount of heat based on the difference between the amount of infrared light emission corresponding to the infrared light output I3 and the amount of infrared light emission corresponding to the infrared light output I4. Third embodiment 10 shows a main part of a third embodiment of the processing device for a longitudinal member to which the present invention is applied. In this state, Engineering equipment D a by Bending of ear 10a Instead of The wire 10a is shown in FIG. Waves like This is a processing device (hereinafter, indicated by the symbol Da, like the second embodiment) that performs bending processing into an eye shape.

[0161] In this processing, first and second infrared light output-phase characteristics representing the relationship between the infrared light output and its phase are stored in the non-volatile memory 64 described in the second embodiment above, instead of the two infrared light output-curvature characteristics 3 and 4 described in the second embodiment above.

[0162] In the first and second infrared light output-phase characteristics, the first infrared light output-phase characteristic is represented by a sine wave curve W42 at the infrared light output. Meanwhile, the second infrared light output-phase characteristic is represented by a sine wave curve W52 at the infrared light output. Accordingly, the first infrared light output-phase characteristic is also referred to as the first sine wave infrared light output-phase characteristic, and the second infrared light output-phase characteristic is also referred to as the second sine wave infrared light output-phase characteristic.

[0163] Here, the sinusoidal infrared light output of the first sinusoidal infrared light output-phase characteristic and the sinusoidal infrared light output of the second sinusoidal infrared light output-phase characteristic, in other words, both sinusoidal curves W42 and W52, within their respective amplitudes, change into a sinusoidal shape with the infrared output I=Ic as the center, as shown in Fig. 10. In addition, between the phase θ=θ1 to θ2, the sinusoidal curve W42 has a sinusoidal shape in opposite phase to the sinusoidal curve W52.

[0164] This means that the sinusoidal infrared light output of the first sinusoidal infrared light output-phase characteristic and the sinusoidal infrared light output of the second sinusoidal infrared light output-phase characteristic, in other words, both sine wave curves W42, W52 change into a wavy shape in the above-mentioned opposite phase with respect to the horizontal axis passing through the origin 0 on the coordinate plane of Fig. 10. According to this, the wire 10a is bent into a wavy shape as shown in Fig. 11, as described later.

[0165] In addition, in this third embodiment, the flowchart (see Figs. 7 and 8) described in the second embodiment is changed to the flowchart shown in Figs. 12 and 13. In other words, the bending program in the second embodiment is changed to a corrugated bending program executed by the CPU 61 in accordance with the flowcharts in Figs. 12 and 13. The corrugated bending program is stored in advance in a readable manner in the ROM 61 of the microcomputer 60, in place of the bending program in the second embodiment. The other configurations of this third embodiment are the same as those of the second embodiment.

[0166] In the third embodiment configured as described above, when the processing device Da is put into operation to perform a wavy bending process on the wire 10a as the workpiece, the CPU 61 executes a wavy bending process program in accordance with the flowcharts of Figures 12 and 13.

[0167] Thus, when a wave bending process is requested by touching the operation display unit 60a, a "YES" determination is made in step 300a in Fig. 12. Next, when the determination in step 310 becomes "YES" as in the second embodiment, the wire 10a is set in step 311 as in the second embodiment.

[0168] Thus, when the workpiece wave bending dimension is input by touching the operation display unit 60a, the determination in step 320a becomes "YES." Accordingly, in the next step 321a, the wave bending dimension of the wire 10a, which is the workpiece, is set. Here, the wave bending dimension is assumed to be L2.

[0169] Thereafter, in step 330a (see FIG. 13), it is determined whether or not the wave bending process is to be started. If the user inputs the start of the wave bending process by touching the operation display unit 60a, the determination in step 330a becomes "YES." Therefore, similar to the second embodiment, the motor 21 is driven in the motor drive process in step 331. Accordingly, the wire 10a starts to move toward the tip end side under the rotation of each pair of rollers 23, 24 and 31, 32, similar to the second embodiment.

[0170] Next, in step 332a (see FIG. 13), a process for setting the infrared light output of both infrared lamps for the wave bending shape is performed. In this setting process, the first and second infrared light output-phase characteristics are read from the non-volatile memory 64. Accordingly, the infrared light outputs I42, I52 of both infrared lamps 42, 52 are set so as to change in response to a change in the phase θ (change in time t) of both sine wave curves W42, W52 corresponding to the first and second infrared light output-phase characteristics (see FIG. 10).

[0171] Thereafter, in the next step 333a, a process of lighting up both infrared lamps is performed. In this lighting process, the CPU 61 outputs each gate signal corresponding to the infrared light outputs I42, I52 (see FIG. 10) already set in step 332a to each of the infrared lamp control circuits 80, 90.

[0172] Here, the gate signal output to the infrared lamp control circuit 80 is output from the CPU 61 for each period based on the value at phase θ=θ1-90 (degrees) of the sine wave curve W42 of the infrared light output I42. Also, the gate signal output to the infrared lamp control circuit 90 is output from the CPU 61 for each period based on the value at phase θ=θ1 of the sine wave curve W52 of the infrared light output I52.

[0173] Accordingly, the infrared lamp control circuit 80 supplies the rectified output formed by the thyristor circuit that is turned on based on the periodic gate signal from the CPU 61 to the infrared lamp 42 of the infrared lamp device 40 as an infrared light output I42. As a result, the infrared lamp 42 is turned on based on the rectified output from the infrared lamp control circuit 80, and emits infrared light in an amount corresponding to the rectified output.

[0174] This means that the infrared light is emitted from the infrared lamp 42 through the reflecting surface 41a to the longitudinal intermediate portion 14 of the wire 10a. Then, from the left The amount of emitted infrared light means that the infrared light output I42 (amount of infrared light emitted) follows the phase change of the sine wave curve W42.

[0175] That is, the infrared lamp 42 turns on in response to a rectified output from the infrared lamp control circuit 80, and emits an amount of infrared light corresponding to the rectified output (an amount corresponding to the infrared light output I42 that follows the phase change of the sine wave curve W42), which is then focused on the longitudinal middle portion 14 of the wire 10a from the left side via the reflective surface 41a.

[0176] Furthermore, the infrared lamp control circuit 90 supplies a rectified output formed by a thyristor circuit that is turned on based on a gate signal sent every period from the CPU 61 to the infrared lamp 52 of the infrared lamp device 50 as an infrared light output I52. As a result, the infrared lamp 52 is turned on based on the rectified output from the infrared lamp control circuit 90, and emits infrared light in an amount corresponding to the rectified output.

[0177] This is because infrared light is emitted from the infrared lamp 52 through the reflecting surface 51a to the longitudinal intermediate portion 14 of the wire 10a. Then, collect from the right side. The amount of emitted infrared light means that the infrared light output I52 (amount of infrared light emitted) follows the phase change of the sine wave curve W52.

[0178] That is, the infrared lamp 52 turns on in response to a rectified output from the infrared lamp control circuit 90, and emits an amount of infrared light corresponding to the rectified output (an amount corresponding to the infrared light output I52 that follows the phase change of the sine wave curve W52), which is then focused on the longitudinal middle portion 14 of the wire 10a from the right side via the reflective surface 51a.

[0179] In this way, when infrared light from infrared lamp 42 is focused on the longitudinal middle portion 14 of wire 10a from the left side in an amount corresponding to infrared light output I42, and infrared light from infrared lamp 52 is focused on the longitudinal middle portion 14 of wire 10a from the right side in an amount corresponding to infrared light output I52, wire 10a is bent at longitudinal middle portion 14 to the right side in FIG. 11 with an amount of heat based on the difference between the amount of infrared light emission corresponding to infrared light output I42 and the amount of infrared light emission corresponding to infrared light output I52 (infrared light emission amount difference).

[0180] As the wire 10a moves toward the tip end side, the longitudinal intermediate portion 14 to be irradiated with infrared light changes as described above. However, the longitudinal intermediate portion 14 which changes in sequence in this manner has the same infrared light emission amount corresponding to the infrared light output I42 from the infrared lamp 42 and the same infrared light emission amount corresponding to the infrared light output I52 from the infrared lamp 52 as described above. The difference between the two heating amounts based on quantityThus, as the phase θ changes (time t passes), the wire is bent to have the wave shape shown in FIG.

[0181] In such a wave bending process, the linearly moving monitoring camera S2 detects the moving length of the wire 10a toward its tip end as the photographing moving length. If the photographing moving length does not reach the above-mentioned wave bending dimension L2 at the current stage, the next step 340a is judged as "NO".

[0182] Thereafter, when the detection photographing movement length by the linearly moving monitoring camera S2 reaches the wave bending dimension L2, the determination in step 340a becomes "YES." This means that the wire portion of the wire 10a corresponding to the wave bending dimension L2 has been wave-bent into the wave shape shown in FIG.

[0183] When the wavy bending process is completed in this manner, the motor 21 is stopped by the CPU 61 via the motor control circuit 70 in the motor drive stop process in the next step 341. Accordingly, the movement of the wire 10a towards its tip end is stopped. Next, in the both infrared lamps turn-off process in step 342, the both infrared lamps 42, 52 are turned off by the CPU 61 via the both infrared lamp control circuits 80, 90 at phase θ=θ2 (time t=t2) (see FIG. 10).

[0184] As described above, according to the third embodiment, in the processing device Da, when the main feed mechanism 20 rotates by its motor 21 under the driving control of the motor control circuit 70 based on a command from the CPU 61, the roller 23 rotates in conjunction with the motor 21. Accordingly, the wire 10a is pulled toward its tip end by the pair of rollers 23, 24 under the rotation of each of them. At this time, the sub-feed mechanism 30 assists the movement of the wire 10a with the pair of rollers 31, 32.

[0185] Also in the third embodiment, similarly to the second embodiment, an infrared lamp 42 and an infrared lamp 52 are disposed opposite each other on both the left and right sides of the longitudinal intermediate portion 14 of the wire 10a.

[0186] With this arrangement, the infrared light output of the infrared lamp 42 is set to an infrared light output I42 (see FIG. 10) that changes with a change in phase based on a predetermined first infrared light output-phase characteristic, and the infrared light output of the infrared lamp 52 is set to an infrared light output I52 (see FIG. 10) that changes with a change in phase based on a predetermined second infrared light output-phase characteristic.

[0187] With both infrared light outputs I42, I52 set in this way, the infrared lamp control device 80 is ignition-controlled by the CPU 61 in its thyristor circuit every period based on the infrared light output I42, and outputs a rectified output corresponding to the infrared light output I42 to the infrared lamp device 40, and the infrared lamp control device 90 is ignition-controlled by the CPU 61 in its thyristor circuit every period based on the infrared light output I52, and outputs a rectified output corresponding to the infrared light output I52 to the infrared lamp device 50.

[0188] Accordingly, the infrared lamp device 40 emits infrared light from its infrared lamp 42 in an amount corresponding to the infrared light output I42 (an amount that changes according to a change in phase), while the infrared lamp device 50 emits infrared light from its infrared lamp 52 in an amount corresponding to the infrared light output I52 (an amount that changes according to a change in phase).

[0189] Thus, the infrared light emitted by the infrared lamp 42 is reflected by the concave hemispherical reflecting surface 41a of the infrared lamp device 40 and is focused on the longitudinal middle portion 14 of the wire 10a from its left side. On the other hand, the infrared light emitted by the infrared lamp 52 is reflected by the concave hemispherical reflecting surface 51a of the infrared lamp device 50 and is focused on the longitudinal middle portion 14 of the wire 10a from its right side.

[0190] As a result, the wire 10a can be wavy-bent at its longitudinal intermediate portion 14 to form a wire with the wavy bent shape shown in Figure 11 with an amount of heat based on the difference between the amount of infrared light emission corresponding to the infrared light output I42 and the amount of infrared light emission corresponding to the infrared light output I52. (Fourth embodiment) Fig. 14 shows a main part of a fourth embodiment of a processing device for a longitudinal member to which the present invention is applied. The processing device in the fourth embodiment does not correct the coated electric wire 10 like the processing device D described in the first embodiment, but serves as a processing device suitable for being employed in the manufacturing process of the coated electric wire 10 to process the coated electric wire 10 into a straight line. The processing device in the fourth embodiment has a configuration in which the bending tendency strength detector S1 is removed from the processing device D in Fig. 1.

[0191] In addition, in the fourth embodiment, a predetermined infrared light output Is (see FIG. 16) determined in advance as the infrared light output of each of the infrared lamps 42, 52 required to process the insulated electric wire 10 into a straight line is stored in the nonvolatile memory 64 of the microcomputer 60, instead of the infrared light output-bending tendency strength characteristics described in the first embodiment.

[0192] In the fourth embodiment, the ROM 62 of the microcomputer 60 pre-stores a straight line machining program in a readable manner, instead of the straightening machining program described in the first embodiment.

[0193] Accordingly, in the fourth embodiment, the CPU 61 of the microcomputer 60 executes the linear machining program according to a flowchart (see Figs. 14 and 15) replacing the flowcharts in Figs. 2 and 3. During execution, the CPU 61 performs performance processing required to control the motor control circuit 70 and both infrared lamp control circuits 80 and 90 according to the detection outputs of the encoder 22 and the linear movement monitoring camera S2 under the operation of the operation display unit 60a. The other configurations are the same as those of the first embodiment.

[0194] In the fourth embodiment configured as described above, when the covered electric wire 10 as the workpiece is in the manufacturing process, the processing device according to the fourth embodiment is put into an operating state to straighten the covered electric wire 10. Accordingly, the CPU 61 executes a straightening program in accordance with the flowcharts of Figs. 14 and 15.

[0195] At this stage, when a straight line processing request is input by touching the operation display unit 60a, it is determined that there is a straight line processing request and the result is "YES" in step 200a of Fig. 14. Next, when the result is "YES" in step 210 as in the first embodiment, the type of workpiece is set to the insulated electric wire 10 in step 211 as in the first embodiment.

[0196] Thereafter, if the straight line machining length is input by touching the operation display unit 60a, the result of the determination in step 220a is "YES." Here, it is assumed that the straight line machining length is L4.

[0197] After the determination of "YES" in step 220a, the input straightening length is set as the straightening length of the insulated electric wire 10 in step 221a.

[0198] Thereafter, when the start of straightening is input by touching the operation display unit 60a, the result of the determination in the next step 230a is "YES." Then, in the motor drive process in step 231, the motor 21 is driven in the same manner as in the first embodiment. As in the first embodiment, the motor 21 drives the insulated electric wire 10 to move upward in FIG. 1 with the rotation of each pair of rollers 23, 24 and 31, 32.

[0199] Then, in the process of setting the infrared light output of both infrared lamps in step 233a in Fig. 15, a predetermined infrared light output Is is read from the non-volatile memory 64 and set as each infrared light output Is of both infrared lamps (see Fig. 16). Here, the infrared light outputs of both infrared lamps 42, 52 are set to be the same in order to straighten the insulated electric wire 10.

[0200] After performing the process in step 233a in this manner, in the next step 234a for turning on both infrared lamps, the CPU 61 outputs a gate signal corresponding to the infrared light output Is (see FIG. 16) set in step 233a to both infrared lamp control circuits 80, 90.

[0201] Accordingly, similarly to the above-described first embodiment, the two infrared lamp control devices 80, 90 each supply to the infrared lamps 42, 52 a rectified output formed by a thyristor circuit that is turned on based on a gate signal corresponding to the infrared light output Is from the CPU 61. As a result, the two infrared lamps 42, 52 are turned on based on the two rectified outputs (corresponding to the infrared light output Is) from the two infrared lamp control circuits 80, 90, and emit infrared light in an amount corresponding to the two rectified outputs.

[0202] This means that the infrared ray is emitted from the infrared lamp 42 to the longitudinal intermediate portion 13 of the insulated electric wire 10 via the reflective surface 41a. Then, from the left The amount of infrared light emitted from the infrared lamp 52 corresponds to the infrared light output Is. Then, collect from the right side. This also means that the amount of emitted infrared light is the amount of infrared light emission corresponding to the infrared light output Is.

[0203] This In manufacturing the coated electric wire 10, The longitudinal middle portion 13 of the covered wire 10 Both of these correspond to the infrared light output Is described above. Infrared light emission For each heating amount based on Thus, it can be processed into a straight line.

[0204] Thereafter, as the insulated electric wire 10 moves toward its tip end, the longitudinal intermediate portion 13 to which the infrared light is irradiated changes as described above. However, the longitudinal intermediate portion 13 which changes sequentially in this manner can be stably straightened by heating with the infrared light emission amount corresponding to the infrared light output Is from the infrared lamp 42 and the infrared light emission amount corresponding to the infrared light output Is from the infrared lamp 52, in the same manner as described above.

[0205] In the process of such linear processing, when the detected photographing movement length by the linear movement monitoring camera S2 reaches the set linear processing length L4, the determination in step 240a becomes "YES." Accordingly, the processing of the next steps 241 and 242 is performed in the same manner as in the first embodiment, the motor 21 stops, and both infrared lamps 42 and 52 are turned off.

[0206] As described above, according to the fourth embodiment, in the manufacturing process of the insulated electric wire 10, when the main feed mechanism 20 rotates by its motor 21 under the driving control of the motor control circuit 70 based on a command from the CPU 61, the roller 23 rotates in conjunction with the motor 21. Accordingly, the insulated electric wire 10 is pulled and moved toward its tip end by the pair of rollers 23, 24 due to the rotation of each of them. At this time, the sub-feed mechanism 30 assists the movement of the insulated electric wire 10 with the pair of rollers 31, 32.

[0207] In the fourth embodiment, as in the first embodiment, the infrared lamp 42 and the infrared lamp 52 are , the coated electric wire 10 Longitudinal middle section 13 The two are disposed on both the left and right sides of the plate.

[0208] With this arrangement, the infrared light output of each of the infrared lamps 42, 53 is set to a predetermined infrared light output Is (see FIG. 16).

[0209] With the infrared light output Is set, the infrared lamp control device 80 has its thyristor circuit ignition controlled by the CPU 61 using its gate signal, and outputs a rectified output corresponding to the infrared light output Is to the infrared lamp device 40, and the infrared lamp control device 90 has its thyristor circuit ignition controlled by the CPU 61 using its gate signal based on the infrared light output Is, and outputs a rectified output corresponding to the infrared light output Is to the infrared lamp device 50.

[0210] Accordingly, the infrared lamp device 40 emits infrared light from its infrared lamp 42 in an amount corresponding to the infrared light output Is. On the other hand, the infrared lamp device 50 emits infrared light from its infrared lamp 52 in an amount corresponding to the infrared light output Is.

[0211] Thus, the infrared light emitted by the infrared lamp 42 is reflected by the concave hemispherical reflecting surface 41a of the infrared lamp device 40 and is focused on the longitudinal middle portion 14 of the insulated electric wire 10 from its left side. On the other hand, the infrared light emitted by the infrared lamp 52 is reflected by the concave hemispherical reflecting surface 51a of the infrared lamp device 50 and is focused on the longitudinal middle portion 14 of the insulated electric wire 10 from its right side.

[0212] As a result, the coated electric wire 10 ,same Infrared light output Is Together against Reply Both are the same red Based on the amount of external light emitted Each identical addition It can be processed into a straight line by applying heat.

[0213] It should be noted that the present invention is not limited to the above-described embodiments, and various modifications may be made as follows. (1) In carrying out the present invention, the workpiece is not limited to the coated electric wire 10 or the wire 10a, but may be a tubular hollow member such as a pipe, a cable such as a hollow cable or a coated cable, or a longitudinal sheet, and generally, any longitudinal member may be used. (2) In carrying out the present invention, the infrared lamp circuits 80, 90 are not limited to thyristor circuits, but may be rectifier circuits such as diodes. (3) In carrying out the present invention, the sub-feed mechanism 30 is configured with a pair of rollers 31, 32, but a motor and an encoder may be additionally employed, as in the main feed mechanism 20. In this case, the detection output of the encoder may be used to adjust the motor so that it rotates synchronously with the motor 21 of the main feed mechanism 20. (4) In carrying out the present invention, for example, both laser devices may be used instead of the two infrared lamp devices 40, 50 described in the first embodiment. In this case, both laser devices each have a laser device body, a laser oscillator that emits a laser beam, and a condenser lens mechanism, and both laser devices control the emission amounts of both laser beams from both laser oscillators via both laser device bodies by two laser control circuits replacing the two infrared lamp control circuits 80, 90, and irradiate both laser beams emitted from both laser oscillators with the thus controlled emission amounts to a longitudinal middle portion of the insulated electric wire so as to be condensed from both sides by the condenser lens mechanisms. This can achieve the same effect as that achieved by the condensation of both infrared rays described in the first embodiment. (5) In carrying out the present invention, unlike the first embodiment, the insulated electric wire 10 may be held stationary, and both infrared lamp devices 40, 50 may be moved simultaneously upward in Fig. 1 in place of the insulated electric wire 10. In this case, a suitable moving body that can move simultaneously in the vertical direction in Fig. 1 may be provided on the support base, and both infrared lamp devices 40, 50 may be disposed on the moving body so as to be positioned opposite each other with the insulated electric wire 10 interposed therebetween, as described in the first embodiment.

[0214] 1 together with the moving body, the infrared lamp devices 40, 50 irradiate the stationary coated electric wire 10 with infrared light. This also makes it possible to achieve the same effects as those of the first embodiment. (6) In implementing the present invention, unlike the first embodiment described above, the reflective surface 41a of the device body 41 may be a concave paraboloid instead of a concave hemispherical surface, and generally may be a concave curved surface capable of focusing infrared light at the longitudinal intermediate portion 13 of the elongated member 10. (7) In carrying out the present invention, the material forming the coating 12 of the coated electric wire 10 may be a synthetic resin such as a thermoplastic resin, and the material forming the conductor 11 may be an electrical conductor made of a metal such as copper. The material forming the longitudinal members described above, such as hollow members such as pipes, cables such as hollow cables and coated cables, and longitudinal sheets, may be a metal such as aluminum, or a synthetic resin such as a thermoplastic resin. [Explanation of symbols]

[0215] 10...coated electric wire, 10a...wire, 20...main feed mechanism, 21...motor, 23, 24, 31, 32... rollers, 30... sub-feed mechanism, 70... motor control device, 40, 50... infrared lamp device, 42, 52... infrared lamp, 60...microcomputer, 60a...operation display unit, 80, 90...infrared lamp control circuit, S1...bend detector.

Claims

1. a first irradiation light emitting means disposed in a longitudinal middle portion of the bent longitudinal member so as to face the bent longitudinal member from one of both opposing sides of the bent longitudinal member, and emitting a first irradiation light consisting of infrared light or laser light so as to be focused from the one side on the longitudinal middle portion; a second irradiation light emitting means arranged to face the first irradiation light emitting means from the other of the opposing both sides across the longitudinal intermediate portion, and emitting a second irradiation light consisting of infrared light or laser light so as to be focused on the longitudinal intermediate portion from the other side; a moving means for moving the elongated member along its longitudinal direction; a detection means for detecting the strength of the bending tendency of the longitudinal member as a bending tendency strength; Among the first and second irradiation light output-bending tendency strength characteristics required for correcting the bending tendency of the longitudinal member, the first irradiation light output-bending tendency strength characteristic is predetermined as a V-shaped characteristic in which, with the detected bending tendency strength value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the detected bending tendency strength toward the one side at the longitudinal intermediate portion, and increases in accordance with an increase in the detected bending tendency strength toward the other side at the longitudinal intermediate portion; and the second irradiation light output-bending tendency strength characteristic is predetermined as a V-shaped characteristic in which, with the detected bending tendency strength value of 0 as a reference, the second irradiation light output increases in accordance with an increase in the detected bending tendency strength toward the one side at the longitudinal intermediate portion. a control means for controlling the first irradiation light emitting means to emit, as the first irradiation light, the first irradiation light output set in accordance with the bending tendency strength detected by the detection means based on the first irradiation light output-bending tendency strength characteristic, and for controlling the second irradiation light emitting means to emit, as the second emitted light, the second irradiation light output set in accordance with the bending tendency strength detected by the detection means based on the second irradiation light output-bending tendency strength characteristic, the first irradiation light output vs. bending tendency strength characteristic is set such that the first irradiation light output at the one side of the longitudinal intermediate portion is greater than the second irradiation light output at the one side of the longitudinal intermediate portion of the second irradiation light output vs. bending tendency strength characteristic, the second irradiation light output vs. bending tendency strength characteristic is set such that the second irradiation light output at the other side of the longitudinal intermediate portion is greater than the first irradiation light output at the other side of the longitudinal intermediate portion of the first irradiation light output vs. bending tendency strength characteristic, The device for processing a longitudinal member is configured to correct the bent longitudinal member into a straight line according to the difference between the heating amounts based on the amounts of the first and second irradiation light focused from one side and the other side of the longitudinal intermediate portion under the control of the control means.

2. a first irradiation light emitting means disposed in a longitudinal intermediate portion of the linear elongated member so as to face one of both opposing sides of the linear elongated member, and emitting a first irradiation light consisting of infrared light or laser light so as to be focused from the one side on the longitudinal intermediate portion; a second irradiation light emitting means arranged to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion of the linear elongate member via the longitudinal intermediate portion, and emitting a second irradiation light consisting of infrared light or laser light so as to be focused on the longitudinal intermediate portion from the other side; a moving means for moving the linear elongated member along its longitudinal direction; a setting means for setting a curvature required for bending the linear elongated member into a predetermined curved shape as a set curvature; Among the first and second irradiation light output-curvature characteristics required for bending the linear longitudinal member, the first irradiation light output-curvature characteristic is predetermined as a V-shaped characteristic in which, with the set curvature value of 0 as a reference, the first irradiation light output increases on the one side of the longitudinal intermediate portion in response to an increase in the set curvature towards the one side, and increases on the other side of the longitudinal intermediate portion in response to an increase in the set curvature towards the other side, and the second irradiation light output-curvature characteristic is predetermined as a V-shaped characteristic in which, with the set curvature value of 0 as a reference, the second irradiation light output increases on the one side of the longitudinal intermediate portion in response to an increase in the set curvature towards the one side. a control means for controlling the first irradiation light emitting means to emit, as the first irradiation light, the first irradiation light output set at an amount corresponding to the set curvature based on the first irradiation light output-curvature characteristic as the first irradiation light, and for controlling the second irradiation light emitting means to emit, as the second irradiation light, the second irradiation light output set at an amount corresponding to the set curvature based on the second irradiation light output-curvature characteristic as the second irradiation light, the first irradiation light output-curvature characteristic is set so that the first irradiation light output at the one side of the longitudinal intermediate portion is greater than the second irradiation light output at the one side of the longitudinal intermediate portion of the second irradiation light output-curvature characteristic, the second irradiation light output-curvature characteristic is set so that the second irradiation light output on the other side of the longitudinal intermediate portion is greater than the first irradiation light output on the other side of the longitudinal intermediate portion of the first irradiation light output-curvature characteristic, A processing device for a longitudinal member that bends the straight longitudinal member into the predetermined curved shape in accordance with the difference between the heating amounts based on the amounts of light focused from the one side and the other side of the first and second irradiation light relative to the longitudinal intermediate portion under the control of the control means.

3. a first irradiation light emitting means disposed in a longitudinal intermediate portion of the linear elongated member so as to face one of both opposing sides of the linear elongated member, and emitting a first irradiation light consisting of infrared light or laser light so as to be focused from the one side on the longitudinal intermediate portion; a second irradiation light emitting means arranged to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion through the longitudinal intermediate portion, and emitting a second irradiation light consisting of infrared light or laser light so as to be focused on the longitudinal intermediate portion from the other side; a moving means for moving the linear elongated member along its longitudinal direction; a setting means for setting first and second irradiation light outputs required for bending the linear elongated member into a predetermined wave shape, the first irradiation light output being set as a first periodic wave irradiation light output so as to change in response to a change in the phase of a first periodic wave curve, and the second irradiation light output being set as a second periodic wave irradiation light output so as to change in response to a change in the phase of a second periodic wave curve that is in the opposite phase to the phase of the first periodic wave curve; a control means for controlling the first irradiation light emitting means so as to emit the first irradiation light while changing the first periodic wave irradiation output over time in accordance with a change in the phase of the first periodic wave curve, and for controlling the second irradiation light emitting means so as to emit the second irradiation light while changing the second periodic wave irradiation light output over time in accordance with a change in the phase of the second periodic wave curve, with respect to the first and second periodic wave irradiation light outputs set by the setting means, so as to bend the straight longitudinal member into the predetermined wave shape as the straight longitudinal member is moved by the moving means, The device for processing a longitudinal member is configured to bend and process the straight longitudinal member into the predetermined wave shape in accordance with the difference between the amounts of heating based on the amounts of the first and second irradiation light focused from one side and the other side of the longitudinal intermediate portion under the control of the control means.

4. a first irradiation light emitting means arranged to face a longitudinal intermediate portion of the longitudinal member from one of both opposing sides of the longitudinal member in manufacturing the longitudinal member, and emitting a first irradiation light consisting of infrared light or laser light so as to be focused from the one side on the longitudinal intermediate portion; a second irradiation light emitting means that is disposed in the manufacturing process of the longitudinal member so as to face the first irradiation light emitting means from the other of the opposing sides of the longitudinal intermediate portion of the longitudinal member through the longitudinal intermediate portion, and that emits a second irradiation light consisting of infrared light or laser light from the other side of the longitudinal intermediate portion; a moving means for moving the elongated member along its longitudinal direction; a setting means for setting the first and second irradiation light outputs required for processing the elongated member into a straight line to be the same value; a control means for controlling the first irradiation light emitting means to emit the first irradiation light output as the first irradiation light and for controlling the second irradiation light emitting means to emit the second irradiation light output as the second irradiation light, with respect to first and second irradiation light outputs required to process the elongated member into a straight line, in accordance with the movement of the elongated member by the moving means, The apparatus for processing a longitudinal member is configured to process the longitudinal member into a straight line using heating amounts based on the same amounts of light focused from the one side and the other side of the first and second irradiation light beams on the longitudinal intermediate portion under the control of the control means when manufacturing the longitudinal member.

5. a moving step in which first and second irradiation light emitting means for emitting first and second irradiation light consisting of infrared light or laser light so as to be focused from opposite sides of a longitudinal intermediate portion of a bent longitudinal member are positioned opposite each other through the longitudinal intermediate portion, and the longitudinal member moves along its longitudinal direction between the first and second irradiation light emitting means, or the first and second irradiation light emitting means move along the longitudinal direction of the longitudinal member while facing each other from opposite sides of the longitudinal intermediate portion; a detection step of detecting a strength of a bending tendency of the elongated member as a bending tendency strength while the elongated member is moved in the moving step or while the first and second irradiation light output means are moved; a first irradiation light output-curve habit strength characteristic predetermined as a V-shaped characteristic such that, with the detected bending habit strength value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the detected bending habit strength toward one side of the longitudinal member, and increases in accordance with an increase in the detected bending habit strength toward the other side of the longitudinal middle portion of the longitudinal member, on the other side of the longitudinal member; and a second irradiation light output is predetermined as a V-shaped characteristic such that, with the detected bending habit strength value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the detected bending habit strength toward one side of the longitudinal middle portion of the longitudinal member, and increases in accordance with an increase in the detected bending habit strength toward the other side of the longitudinal middle portion of the longitudinal member, on the other side of the longitudinal middle portion of the longitudinal member. and a control step of controlling the first irradiation light emitting means to emit, as the first irradiation light, a first irradiation light output set in accordance with the bending tendency strength detected in the detection step based on the first irradiation light output-bending tendency strength characteristic, and controlling the second irradiation light emitting means to emit, as the second emitted light, a second irradiation light output set in accordance with the bending tendency strength detected in the detection step based on the second irradiation light output-bending tendency strength characteristic, so as to correct the bending tendency of the long-shaped member in the moving step or the movements of the first and second irradiation light emitting means, In the control step, the first irradiation light output-bending tendency strength characteristic is set to be larger at the first irradiation light output at the one side of the longitudinal intermediate portion than the second irradiation light output-bending tendency strength characteristic at the one side of the longitudinal intermediate portion, while the second irradiation light output-bending tendency strength characteristic is set to be larger at the second irradiation light output at the other side of the longitudinal intermediate portion than the first irradiation light output at the other side of the longitudinal intermediate portion, A method for processing a longitudinal member, in which the bent longitudinal member is corrected into a straight line in accordance with the difference between the amount of heat based on both the amount of light with which the first irradiation light emitting means focuses the first emitted light in the control step from one side of the longitudinal intermediate portion in accordance with the detected bending strength and the amount of light with which the second irradiation light emitting means focuses the second emitted light in the control step from the other side of the longitudinal intermediate portion in accordance with the detected bending strength.

6. a moving step in which first and second irradiation light emitting means for emitting first and second irradiation light consisting of infrared light or laser light so as to be focused from opposing sides at a longitudinal intermediate portion of a linear longitudinal member are positioned opposite each other from the opposing sides via the longitudinal intermediate portion, and the longitudinal member moves along its longitudinal direction between the first and second irradiation light emitting means, or the first and second irradiation light emitting means move along the longitudinal direction of the longitudinal member while facing each other from the opposing sides of the longitudinal intermediate portion; a setting step of setting a curvature required for bending the linear elongated member into a predetermined curved shape as a set curvature; a first irradiation light output-curvature characteristic predetermined as a V-shaped characteristic such that, with the set curvature value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the set curvature toward one side of the longitudinal middle portion, and increases in accordance with an increase in the set curvature toward the other side of the longitudinal middle portion; and a second irradiation light output is predetermined as a V-shaped characteristic such that, with the set curvature value of 0 as a reference, the first irradiation light output increases in accordance with an increase in the set curvature toward one side of the longitudinal middle portion, and increases in accordance with an increase in the set curvature toward the other side of the longitudinal middle portion. a control step of controlling the first irradiation light emitting means to emit, as the first irradiation light, a first irradiation light output set at an amount corresponding to the set curvature based on the first irradiation light output-curvature characteristic, and controlling the second irradiation light emitting means to emit, as the second irradiation light, a second irradiation light output set at an amount corresponding to the set curvature based on the second irradiation light output-curvature characteristic, so as to bend the linear elongate member in the moving step or the first and second irradiation light emitting means, in the control step, the first irradiation light output-curvature characteristic is set to be larger at the first irradiation light output at the one side of the longitudinal intermediate portion than the second irradiation light output at the one side of the longitudinal intermediate portion of the second irradiation light output-curvature characteristic, and the second irradiation light output-curvature characteristic is set to be larger at the second irradiation light output at the other side of the longitudinal intermediate portion than the first irradiation light output at the other side of the longitudinal intermediate portion of the first irradiation light output-curvature characteristic, a control step of controlling the amount of heat generated by the first irradiation light emitting means to focus the first emitted light from one side of the longitudinal intermediate portion in accordance with the set curvature in the control step and a control step of controlling the amount of heat generated by the second irradiation light emitting means to focus the second emitted light from the other side of the longitudinal intermediate portion in accordance with the set curvature in the control step, the straight longitudinal member being bent into the predetermined curved shape in accordance with a difference between the amount of heat generated by the first irradiation light emitting means to focus the first emitted light from the one side of the longitudinal intermediate portion in accordance with the set curvature in the control step.

7. a moving step in which, in a state in which the first and second irradiation light emitting means are positioned so as to face each other from opposite sides of a longitudinal intermediate portion of a linear longitudinal member, the longitudinal member moves along its longitudinal direction between the first and second irradiation light emitting means, or the first and second irradiation light emitting means move along the longitudinal direction of the longitudinal member while facing each other from the opposite sides of the longitudinal intermediate portion; a setting step of setting first and second irradiation light outputs required for bending the linear elongated member into a predetermined wave shape, the first irradiation light output being set as a first periodic wave irradiation light output so as to change in response to a change in the phase of a first periodic wave curve, and the second irradiation light output being set as a second periodic wave irradiation light output so as to change in response to a change in the phase of a second periodic wave curve that is in the opposite phase to the phase of the first periodic wave curve; a focusing step in which, with respect to the first and second periodic wave irradiation light outputs in the setting step, the first irradiation light output is focused from one of both opposing sides of the longitudinal intermediate portion as a first irradiation light made of infrared light or laser light while changing the first periodic wave irradiation light output over time in accordance with a change in the phase of the first periodic wave curve, and the second irradiation light output is focused from the other of both opposing sides of the longitudinal intermediate portion as a second irradiation light made of infrared light or laser light while changing the second periodic wave irradiation light output over time in accordance with a change in the phase of the second periodic wave curve, so that the linear longitudinal member is bent into the predetermined wave shape under the movement of the longitudinal member in the moving step or the movement of the first and second irradiation light output means, A method for processing a longitudinal member, in which the longitudinal member is bent into the predetermined wave shape by using a difference in heating amount based on the amount of light focused from one side and the other side of the first and second irradiation light in the focusing step to the longitudinal intermediate portion.

8. a moving step in which, in manufacturing a longitudinal member, the longitudinal member moves along its longitudinal direction between the first and second irradiation light emitting means in a state in which the first and second irradiation light emitting means are positioned so as to face each other from opposite sides of a longitudinal intermediate portion of the longitudinal member, or the first and second irradiation light emitting means move along the longitudinal direction of the longitudinal member while facing each other from the opposite sides of the longitudinal intermediate portion; a setting step of setting first and second irradiation light outputs required for processing the elongated member into a straight line to be the same value; a focusing step in which, with respect to the first and second irradiation light outputs, the first irradiation light output is focused as the first irradiation light by the first irradiation light output from one of the opposing sides to the longitudinal intermediate portion, and the second irradiation light output is focused as the second irradiation light by the second irradiation light output from the other of the opposing sides to the longitudinal intermediate portion, so as to process the longitudinal intermediate portion into a straight line under the movement of the longitudinal member in the moving step or the movement of the first and second irradiation light output means, A method for processing a longitudinal member, in which, in manufacturing the longitudinal member, the longitudinal member is processed into a straight line using heating amounts based on the same amounts of light focused from both the one side and the other side of the first and second irradiation lights in the focusing step on the longitudinal intermediate portion.

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