Press processing equipment for long parts

Abstract

To provide a low-cost press working apparatus for a long component which is compact and furthermore is flexibly adaptable to alteration of longitudinal size.SOLUTION: A press working apparatus 10 for a long component F comprises a conveying means 11 which can convey a long workpiece W formed by connecting a plurality of long components F to each other along the longitudinal direction thereof and a plurality of press-working means 12 which are arranged along a conveyance direction X of the long workpiece W and can perform press-working on longitudinal direction-one end portion Fa or other end portion Fb. Two or more press-working means 12 of the plurality of press-working means 12 constitute a continuous press unit 13 which can continuously perform press-working for longitudinal direction on one end portion Fa or the other end portion Fb of the long component F. Two or more continuous press units 13 are provided and are constituted movably along conveyance direction X of the long workpiece W.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a press working device for long parts. [Background technology]

[0002] For example, among automotive parts, rectangular wire is one type of long component that requires specific processing on both longitudinal ends. This rectangular wire is deformed from a long shape into a specific shape (e.g., a roughly U-shape) and then arranged in a predetermined order in slots formed at regular intervals around the circumference of a stator core to form the stator coil of a three-phase motor. Meanwhile, this rectangular wire is covered with an insulating coating. Therefore, in order to electrically connect the rectangular wires that make up each phase, it is necessary to remove the insulating coating from the longitudinal ends of the rectangular wire and then join those ends together.

[0003] Here, Patent Document 1 discloses a method in which a long rectangular wire that has been cut to a predetermined length in advance is rotated around its longitudinal axis while being transported in a predetermined direction, and the corners of the rectangular wire are sequentially chamfered and cut in a number of cutting processes arranged along the transport direction to remove the insulating coating from the corners.

[0004] Furthermore, for the purpose of reducing material costs by avoiding cutting losses, Patent Document 2 discloses a method in which, in the coating removal process of removing the insulating coating of a rectangular wire, a die is pressed against the corner of the rectangular wire to plastically deform it, thereby forming a chamfer at the corner and thereby removing the insulating coating from the corner. In other words, the method discloses a method in which, by pressing the corner of the rectangular wire, a chamfer is formed and the insulating coating is removed at the same time. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-89837 [Patent Document 2] Patent Publication No. 2021-40441 Summary of the Invention [Problem to be solved by the invention]

[0006] Considering that the processing to be performed on both longitudinal ends of the flat wire mainly involves removing the insulating coating and chamfering the corners, and that the processed shape of both longitudinal ends will be symmetrical with respect to an imaginary plane perpendicular to the center of the flat wire, as shown in Figure 9, for example, a method can be considered in which the flat wire F is transported in a connected state without being cut, and the required number of press means 100, 100... are arranged along the transport direction, allowing multiple press processes to be performed simultaneously on multiple flat wires F, F.... In this case, by arranging the required number of press means 100, 100... in a line along the longitudinal direction with an installation interval G equal to the longitudinal dimension L of the flat wire F, multiple different press processes can be performed simultaneously on multiple flat wires F, F.... Furthermore, by performing press processing on the connecting portions C of the flat wires F, F..., one longitudinal end Fa and the other longitudinal end Fb of adjacent flat wires F can be press processed simultaneously. Therefore, a significant improvement in work efficiency can be expected.

[0007] On the other hand, when considering performing multiple press processes on rectangular wires F, F... while they are still connected to one another, as shown in Figure 9, adapting to changes in product type becomes a challenge. That is, when performing multiple press processes on rectangular wire F as shown in Figure 9, the equipment for performing each press process (pressing means 100, 100...) is arranged with an installation interval G equal to the longitudinal dimension L of one rectangular wire F. Therefore, for example, when changing to a rectangular wire F' with a different longitudinal dimension L', as shown in Figure 10, the installation interval G' of the pressing means 100, 100... (or the press molds of each pressing means 100) must be changed according to the longitudinal dimension L' of the changed rectangular wire F'. However, moving so many pressing means 100, 100... poses problems such as excessive effort and cost. Furthermore, since equipment for moving them is required, this contradicts the demand for space saving and makes it difficult to apply.

[0008] The above-mentioned problem is not limited to rectangular wires, but can occur in any long part that requires multiple press workings on both longitudinal ends.

[0009] In view of the above circumstances, the technical problem to be solved in this specification is to provide a press processing device for long parts that is compact yet can accommodate changes in longitudinal dimensions at low cost. [Means for solving the problem]

[0010] The above-mentioned object is achieved by the press working apparatus for long parts according to the present invention, which is a press working apparatus for performing a plurality of press working operations on both longitudinal ends of a long part, and is characterized in that it comprises a conveying means capable of conveying a long workpiece formed by connecting both longitudinal ends of a plurality of long parts along the longitudinal direction of the long workpiece, and a plurality of press working means arranged along the conveying direction of the long workpiece and capable of performing press working on one longitudinal end or the other longitudinal end of the long part, two or more of the plurality of press working means forming a continuous press unit capable of continuously performing press working on one longitudinal end or the other longitudinal end of the long part, two or more continuous press units are provided, and the continuous press unit is configured to be movable along the conveying direction of the long workpiece.

[0011] In this way, two or more continuous press units are configured, each consisting of two or more press means, and these continuous press units are configured to be movable along the transport direction of the long workpiece. This allows the number of movement mechanisms for the press means to be reduced compared to conventional systems, while still allowing the position of the press means to be changed according to the longitudinal dimensions of the long part. Reducing the number of movement mechanisms also reduces the equipment costs of the press working device. Furthermore, in addition to reducing the number of movement mechanisms, the space required for movement is also reduced, making it possible to make the press working device more compact.

[0012] In addition, in the press working device for long parts according to the present invention, two adjacent continuous press units may be configured to be able to simultaneously press one end and the other end in the longitudinal direction of the same long part.

[0013] By configuring two adjacent continuous press units in this way, press working can be performed very efficiently. In addition, the distance between the press working means in one continuous press unit can be reduced, making it possible to further compact the continuous press unit and, in turn, the press working device. [Effects of the Invention]

[0014] As described above, the press processing device for long parts according to the present invention makes it possible to provide a press processing device for long parts that is compact yet can flexibly accommodate changes in longitudinal dimensions at low cost. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a front view of a press working device for a long part according to a first embodiment of the present invention; [Figure 2] 2 is a front view of the press working apparatus showing the flow of press working by the press working apparatus shown in FIG. 1. FIG. [Figure 3] 2 is a front view of the press working apparatus showing the flow of press working by the press working apparatus shown in FIG. 1. FIG. [Figure 4] 2 is a front view of the press working apparatus showing the flow of press working by the press working apparatus shown in FIG. 1. FIG. [Figure 5] 2 is a front view of the press working apparatus showing the flow of press working by the press working apparatus shown in FIG. 1. FIG. [Figure 6] FIG. 1 is a perspective view of a longitudinal end portion of a rectangular wire after a series of press working processes have been performed. [Figure 7] FIG. 4 is a front view of a press working device for a long part according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a front view of a press working device for a long part according to a third embodiment of the present invention. [Figure 9] FIG. 10 is a front view of a flat wire press processing device according to another invention. [Figure 10] 10 is a front view showing the state of the stamping device shown in FIG. 9 after a layout change due to a change in the type of rectangular wire. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] The details of the press working device for long parts according to the first embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the case where both longitudinal ends of a long rectangular wire are subjected to multiple press workings to remove the insulating coating and perform chamfering will be described as an example.

[0017] 1 is a schematic front view of the overall configuration of a press processing device 10 for long parts according to this embodiment. This press processing device 10 mainly comprises a conveying means 11 capable of conveying a rectangular wire F as a long part, a plurality of press processing means 12 capable of performing predetermined press processing on the rectangular wire F being conveyed by the conveying means 11, a continuous press unit 13 consisting of two or more press processing means 12, and a moving mechanism 14 capable of moving the continuous press unit 13 along the conveying direction of the rectangular wire F. Each element will be described in detail below.

[0018] The conveying means 11 is capable of conveying a flat wire F as a long part. In this embodiment, it is configured to convey a flat wire rod W (corresponding to a long workpiece according to the present invention) in a state in which both longitudinal ends Fa, Fb (see FIG. 6) of a plurality of flat wires F are interconnected along its longitudinal direction. Here, the conveying means 11 has, for example, one or more pulling sections 15 that can grasp the flat wire rod W and pull it in the conveying direction. This pulling section 15 moves downstream in the conveying direction while grasping a predetermined portion of the flat wire rod W, thereby allowing the flat wire rod W grasped by the pulling section 15 to move along its longitudinal direction. Therefore, the moving speed of the flat wire F can be set according to the moving speed of the pulling section 15.

[0019] In principle, the portion of the flat wire W that is gripped by the pulling portion 15 is arbitrary, but for example, as shown in Fig. 1, the portion where the insulating coating Fc is removed by a predetermined press process using the press processing means 12 to expose the conductor Fd may be gripped. Since the conductor is less slippery than the insulating coating, the flat wire W can be transported stably by gripping and pulling the portion shown in Fig. 2 with the pulling portion 15.

[0020] In this embodiment, the conveying means 11 is configured with one or more pulling units 15, but other configurations are also possible. For example, although not shown, one example of the conveying means 11 is one configured with multiple pairs of rollers that can clamp the rectangular wire W from above and below. Any known conveying mechanism can be used for the conveying means 11 as long as it can convey an approximately long object along its longitudinal direction.

[0021] The press processing means 12 has a press mold 16 that is driven by receiving a press force as a driving force, and a pressed mold 17 that receives the press force from the press mold 16. Each press mold 16 is provided with a processing section 16a that is shaped according to the type of press processing to be performed by each press processing means 12, and by bringing each press mold 16 close to the pressed mold 17 and pressing the processing section 16a against a predetermined portion of the flat wire F, it is possible to perform a predetermined press processing on the flat wire F. In this embodiment, all of the press processing means 12 are configured to be able to perform different types of press processing.

[0022] The two or more press working means 12 having the above configuration are provided along the conveying direction X of the rectangular wire F in the same number as the number of press workings to be performed, and the two or more press working means 12 constitute a continuous press unit 13. In this embodiment, as shown in Fig. 1, seven press working means 12 (12a, 12b...12g) are arranged. Of the seven press working means 12, the three press working means 12a, 12b, 12c located most upstream in the conveying direction X constitute a first continuous press unit 13a, and the three press working means 12d, 12e, 12f located next most upstream constitute a second continuous press unit 13b.

[0023] Each of the continuous press units 13a, 13b is provided with a press drive source 18. In this embodiment, the press drive source 18 is configured to be able to selectively apply a drive force that serves as a press force to the press die 16 of each of the press working means 12. Any drive device can be used as the press drive source 18. Furthermore, depending on the type of press drive source 18, a motion conversion mechanism may be interposed between the press drive source 18 and each of the press dies 16. In short, the configuration of the press drive source 18 and its surroundings is arbitrary as long as it is possible to selectively apply a press force to any one of the three press working means 12 that make up each of the continuous press units 13.

[0024] The continuous press unit 13 is provided with a movement mechanism 14. In this embodiment, the movement mechanism 14 is provided in both the continuous press units 13a, 13b. This allows the three press processing means 12 (12a to 12c, 12d to 12f) constituting each of the continuous press units 13a, 13b to move integrally along the conveyance direction X. Here, the movement range of the continuous press unit 13 by the movement mechanism 14 can be appropriately set according to the expected longitudinal dimension L of the flat wire F.

[0025] In this embodiment, two adjacent continuous press units 13a, 13b in the conveying direction X are configured to simultaneously press one longitudinal end Fa and the other longitudinal end Fb of the same flat wire F. In this case, each press means 12 is configured to press the joint C of adjacent flat wires F. In the example shown in FIG. 1, the spacing G between each continuous press unit 13a, 13b is set so that the most upstream press means 12a, 12d of the three press means 12a-12c (12d-12f) constituting each continuous press unit 13a, 13b can simultaneously press one longitudinal end Fa and the other longitudinal end Fb of the same flat wire F. In this case, the conveying direction dimension H and the spacing G are set so that the sum of the conveying direction dimension H and the spacing G of each continuous press unit 13 is equal to the longitudinal dimension L of the flat wire F (see FIG. 1). Therefore, the dimension H of the continuous press unit 13 in the conveying direction is smaller than the dimension L of the rectangular wire F in the longitudinal direction.

[0026] Next, an example of press processing of a flat wire W using the press processing device 10 configured as described above will be described mainly with reference to Figures 2 to 5. In the following description, the flat wire F to be processed by the press processing device 10 will be referred to as the first flat wire F1, the second flat wire F2, and the third flat wire F3, starting from the downstream side of the conveying direction X. In addition, the connection C between the first flat wire F1 and the downstream flat wire F will be referred to as the first connection C1, the connection C between the first flat wire F1 and the second flat wire F2 will be referred to as the second connection C2, the connection C between the second flat wire F2 and the third flat wire F3 will be referred to as the third connection C3, and the connection C between the third flat wire F3 and the upstream flat wire F will be referred to as the fourth connection C4.

[0027] First, as shown in Figure 2, a long rectangular wire material W is continuously transported in a predetermined direction by a conveying means 11, and the connecting portion C (fourth connecting portion C4) on the other longitudinal end side of the rectangular wire F (here, the third rectangular wire F3) of the rectangular wire material W in a state before a series of press processes are performed is introduced between the press mold 16 and the pressed mold 17 of the press processing means 12a of the first continuous press unit 13a located at the most upstream side (hereinafter, referred to as the first press processing means 12a, the second press processing means 12b, ... the seventh press processing means 12g, from the upstream side).

[0028] At this time, the connecting portion C (third connecting portion C3) at one end of the longitudinal direction of the third flat wire F3, which has already been subjected to the first to third press processes by the first continuous press unit 13a, is introduced between the press mold 16 and the pressed mold 17 of the fourth press processing means 12d of the second continuous press unit 13b.

[0029] 2, the press drive source 18 is driven to selectively apply a press force in the die clamping direction to the press die 16 of the first press working means 12a. As a result, the working portion 16a is pressed against the fourth connecting portion C4 located between the working portion 16a of the press die 16 and the pressed die 17, and a predetermined press working (first press working) is performed on this fourth connecting portion C4.

[0030] At this time, the press drive source 18 is driven to selectively apply a press force in the die clamping direction to the press die 16 of the fourth press working means 12d. As a result, the working portion 16a is pressed against the third connecting portion C3 located between the working portion 16a of the press die 16 and the pressed die 17, and a predetermined press working (fourth press working) is performed on this third connecting portion C3.

[0031] Thereafter, the press drive sources 18 of the continuous press units 13a and 13b are driven to raise the press dies 16 and move the flat wire W in the conveying direction X, thereby introducing the fourth connecting portion C4 that has been subjected to the first press process between the press die 16 of the second press working means 12b and the pressed die 17, and introducing the third connecting portion C3 that has been subjected to the fourth press process between the press die 16 of the fifth press working means 12e and the pressed die 17 (see FIG. 3). Then, the press drive source 18 of the first continuous press unit 13a is driven to selectively apply a press force in the die clamping direction to the press die 16 of the second press working means 12b. As a result, the processed portion 16a is pressed against the fourth connecting portion C4 located between the processed portion 16a of the press die 16 and the pressed die 17, and a predetermined press process (second press process) is performed on the fourth connecting portion C4. At this time, the press drive source 18 of the second continuous press unit 13b is driven to selectively apply a press force in the die clamping direction to the press die 16 of the fifth press working means 12e. As a result, the working portion 16a is pressed against the third connecting portion C3 located between the working portion 16a of the press die 16 and the pressed die 17, and a predetermined press working (fifth press working) is performed on the third connecting portion C3.

[0032] Thereafter, the press drive sources 18 of the continuous press units 13a and 13b are driven to raise the press dies 16 and move the flat wire W in the conveying direction X, thereby introducing the fourth connecting portion C4 that has been subjected to the second press process between the press die 16 of the third press working means 12c and the pressed die 17, and introducing the third connecting portion C3 that has been subjected to the fifth press process between the press die 16 of the sixth press working means 12f and the pressed die 17 (see FIG. 4). Then, the press drive source 18 of the first continuous press unit 13a is driven to selectively apply a press force in the die clamping direction to the press die 16 of the third press working means 12c. As a result, the processed portion 16a is pressed against the fourth connecting portion C4 located between the processed portion 16a of the press die 16 and the pressed die 17, and a predetermined press process (third press process) is performed on the fourth connecting portion C4. At this time, the press drive source 18 of the second continuous press unit 13b is driven to selectively apply a press force in the die clamping direction to the press die 16 of the sixth press working means 12f. As a result, the working portion 16a is pressed against the third connecting portion C3 located between the working portion 16a of the press die 16 and the pressed die 17, and a predetermined press working (sixth press working) is performed on the third connecting portion C3.

[0033] In this manner, the first and fourth press processes are simultaneously performed on the fourth connecting portion C4 and the third connecting portion C3, the second and fifth press processes are simultaneously performed on the fourth connecting portion C4 and the third connecting portion C3, and the third and sixth press processes are simultaneously performed on the third connecting portion C4 and the third connecting portion C3. In this embodiment, the fourth connecting portion C4 and the third connecting portion C3 are introduced between the press dies 16 and 17 of the third press-processing means 12c and the sixth press-processing means 12f, respectively. At the same time, the first connecting portion C1, which has already been subjected to the first through sixth press processes, is introduced between the press dies 16 and 17 of the seventh press-processing means 12g (see FIG. 4). Therefore, simultaneously with the third and sixth press processes being performed on the connecting portions C3 and C4, the seventh press-processing means 12g performs press processing on the first connecting portion C1. As a result, the portion of the first flat wire F1 located at the first connecting portion C1, which corresponds to one longitudinal end of the first flat wire F1, is formed into a predetermined shape, and the first connecting portion C1 is cut. Here, each connecting portion C1 to C4 is spaced apart by the longitudinal dimension L of the flat wire F. Therefore, by repeating the above-described series of press processes one more time while transporting the flat wire material W, the second connecting portion C2 is cut off, and a first flat wire F1 is obtained with the predetermined press process applied to both longitudinal ends Fa, Fb (see FIG. 5). In this way, by repeating the above-described series of press processes, flat wires F (first flat wire F1, second flat wire F2, third flat wire F3, etc.) with the predetermined press process applied to both longitudinal ends are sequentially obtained.

[0034] 6 shows an example of the shape of one longitudinal end Fa (or the other end Fb) of the rectangular wire F after it has been pressed by a plurality of press-working means 12a-12g. In other words, in this illustrated example, the insulating coating Fc covering each end Fa, Fb has been removed from the entire periphery, exposing the conductor Fd having a substantially rectangular parallelepiped shape. Furthermore, a corner c1 between the wide-side flat portion f1 and the narrow-side flat portion f2 of this conductor Fd is chamfered, and a corner c2 between the wide-side flat portion f1 and the tip surface f3, and a corner c3 between the narrow-side flat portion f2 and the tip surface f3 are also chamfered (chamfered portions are formed).

[0035] After the flat wire F has been obtained by the series of press workings as described above, the flat wire F is subjected to a predetermined bending process or the like to complete a coil segment made of the flat wire.

[0036] As described above, the press working device 10 for long parts according to this embodiment is configured with two or more continuous press units 13, each consisting of two or more press working means 12, and these continuous press units 13 are configured to be movable along the conveying direction X of the rectangular wire W as the long workpiece. Therefore, while the position of the press working means 12 can be changed according to the longitudinal dimension L of the rectangular wire F, the number of movement mechanisms 14 for the press working means 12 can be reduced compared to conventional systems. Reducing the number of movement mechanisms 14 allows for corresponding reductions in the equipment costs for the press working device 10. Furthermore, in addition to reducing the number of movement mechanisms 14, the space required for movement is also reduced, making it possible to make the press working device 10 more compact.

[0037] Furthermore, as in this embodiment, by configuring two adjacent continuous press units 13 to simultaneously press one longitudinal end Fa and the other longitudinal end Fb of the same rectangular wire F, it is possible to perform press processing very efficiently. Furthermore, since the spacing between the press processing means 12 in one continuous press unit 13 can be reduced, it is possible to further compactify the continuous press unit 13 and, in turn, the press processing device 10. In particular, as in this embodiment, by simultaneously pressing the connection portion C of the rectangular wire W using the first press processing means 12a, the fourth press processing means 12d, and the seventh press processing means 12g, it is possible to further improve the press processing efficiency.

[0038] In addition, in this embodiment, the flat wire material W as a long workpiece formed by connecting the longitudinal ends Fa, Fb of a plurality of flat wires F to each other is conveyed by the conveying means 11, and predetermined connecting portions C can be sequentially introduced into each pressing means 12a-12g. In this way, by carrying out a series of pressing processes on the connecting portions C while conveying a plurality of flat wires F together, it is possible to simultaneously press one longitudinal end Fa of one flat wire F and the other longitudinal end Fb of the other flat wire F adjacent to each other. This makes it possible to obtain both longitudinal ends Fa, Fb with excellent symmetry, and therefore it is possible to precisely overlap and join the ends Fa, Fb of the flat wires F.

[0039] Although the first embodiment of the present invention has been described above, the press working device for long parts according to the present invention can also have configurations other than those described above within the scope of the invention.

[0040] 7 shows a front view of a press working apparatus 20 for long parts according to a second embodiment of the present invention. This press working apparatus 20 differs from the first embodiment in the configuration of the continuous press units 13. More specifically, in this press working apparatus 20, the seven press working means 12 make up three continuous press units 13. In this case, of the seven press working means 12, the three press working means 12a, 12b, and 12c located most upstream in the conveying direction X make up the first continuous press unit 13a, the next two press working means 12d and 12e located most upstream make up the second continuous press unit 13b, and the two press working means 12f and 12g located most downstream in the conveying direction X make up the third continuous press unit 13c.

[0041] Here, the movement mechanism 14 is provided for the two relatively upstream continuous press units 13a, 13b among the three continuous press units 13a to 13c. In this case, the third continuous press unit 13c, which is the most downstream, is fixed at a fixed position in the conveying direction X.

[0042] In this embodiment, the first continuous press unit 13a and the second continuous press unit 13b adjacent to each other in the conveying direction X are configured to be able to simultaneously press one end Fa and the other end Fb of the same flat wire F, and the second continuous press unit 13b and the third continuous press unit 13c adjacent to each other in the conveying direction X are configured to be able to simultaneously press one end Fa and the other end Fb of the same flat wire F. That is, in the press working device 20 according to this embodiment, the first press working means 12a of the first continuous press unit 13a, the fourth press working means 12d of the second continuous press unit 13b, and the sixth press working means 12f of the third continuous press unit 13c are configured to be able to simultaneously press three connecting portions C of the flat wire W continuous in the conveying direction X. In addition, the second press processing means 12b of the first continuous press unit 13a, the fifth press processing means 12e of the second continuous press unit 13b, and the seventh press processing means 12g of the third continuous press unit 13c are configured to be able to perform press processing on the three connecting portions C simultaneously.

[0043] Therefore, in the press processing device 20 according to this embodiment, the position of the press processing means 12 can be changed according to the longitudinal dimension L of the rectangular wire F, while the number of movement mechanisms 14 of the press processing means 12 can be reduced compared to the conventional case, thereby reducing the equipment cost of the press processing device 20. Furthermore, by reducing the number of movement mechanisms 14, it is possible to make the press processing device 20 more compact.

[0044] FIG. 8 shows a front view of a press working apparatus 30 for long parts according to a third embodiment of the present invention. This press working apparatus 30 differs from the first and second embodiments in the configuration of the continuous press unit 13. Specifically, in this press working apparatus 30, seven press working means 12 constitute two continuous press units 13. In this case, of the seven press working means 12, four press working means 12a-12d located upstream in the conveying direction X constitute a first continuous press unit 13a, and three press working means 12e-12g located downstream in the conveying direction X constitute a second continuous press unit 13b. That is, in the press working apparatus 30 according to this embodiment, the first press working means 12a of the first continuous press unit 13a and the fifth press working means 12e of the second continuous press unit 13b are configured to simultaneously press two joint portions C of the flat wire W continuing in the conveying direction X. In addition, the second press processing means 12b of the first continuous press unit 13a and the sixth press processing means 12f of the second continuous press unit 13b are configured to be able to perform press processing on the two connecting portions C simultaneously, and the third press processing means 12c of the first continuous press unit 13a and the seventh press processing means 12g of the second continuous press unit 13b are configured to be able to perform press processing on the two connecting portions C simultaneously.

[0045] Therefore, in the press processing device 30 according to this embodiment, the position of the press processing means 12 can be changed according to the longitudinal dimension L of the rectangular wire F, while the number of movement mechanisms 14 of the press processing means 12 can be reduced compared to the conventional case, thereby reducing the equipment cost of the press processing device 20. Furthermore, by reducing the number of movement mechanisms 14, it is possible to make the press processing device 20 more compact.

[0046] In the above embodiments, the most upstream press means 12 in each continuous press unit 13 (the first press means 12a, the fourth press means 12d, and the sixth press means 12f in the second embodiment) are configured to be able to simultaneously press the connecting portions C of the rectangular wire W continuing in the conveying direction X, but other configurations are of course possible. For example, although not shown, in the press device 20 according to the second embodiment, the second press means 12b of the first continuous press unit 13a, the fourth press means 12d of the second continuous press unit 13b, and the sixth press means 12f of the third continuous press unit 13c may be configured to be able to simultaneously press the three connecting portions C.

[0047] In the above explanation, two continuous press units 13a, 13b are configured (see Figures 1 and 8), and three continuous press units 13a to 13c are configured (see Figure 7). However, other configurations are also possible. For example, in the case of a press processing device having eight or more press processing means 12, four or more continuous press units 13 can be configured.

[0048] In addition, in the above explanation, the flat wire F is used as the object of application of the present invention (the object of press working), but of course the present invention may also be used for long parts other than the flat wire F. In other words, the present invention can be applied to any type of long part as long as it is necessary to perform multiple press workings on both ends in the longitudinal direction. [Explanation of symbols]

[0049] 10, 20, 30 Press processing equipment for long parts 11. Means of transport 12, 12a to 12g Press processing method 13, 13a~13c Continuous press unit 14 Moving mechanism 15 Traction section 16 Press mold 16a Processing section 17 Pressed mold 18 Press drive source 100 Press processing means C,C1~C4 connection part F,F1~F3 flat wire Fa One longitudinal end Fb Other end in the longitudinal direction Fc insulating coating Fd conductor G interval L longitudinal dimension H Conveying direction dimension W flat wire X conveying direction

Claims

1. A press working device for performing a plurality of press workings on both longitudinal end portions of a long part, a conveying means for conveying a long workpiece formed by connecting both longitudinal ends of a plurality of the long parts together along the longitudinal direction of the long workpiece; a plurality of press working means arranged along the conveyance direction of the long workpiece and capable of performing the press working on one end or the other end in the longitudinal direction of the long part; two or more of the press working means constitute a continuous press unit capable of continuously performing press working on one end or the other end in the longitudinal direction of the long part, The continuous press unit is provided with two or more, and The continuous press unit is configured to be movable along the conveying direction of the long workpiece, and is a press processing device for long parts.

2. 2. The press working device according to claim 1, wherein the two adjacent continuous press units are configured to be able to simultaneously press one end and the other end in the longitudinal direction of the same elongated workpiece, respectively.

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