Turnover device for long and thin section profile and turnover control method of turnover device

Abstract

A turnover device for a long and thin section profile comprises a conveying belt pair and a turnover mechanism, and the section profile is conveyed forwards at a constant speed in the conveying direction A through the conveying belt pair; the turnover mechanism is used for achieving in-situ turnover of a preset angle alpha while moving the section profile, and the preset angle alpha can be set on site before use; the turnover mechanism comprises three rocking-turn hands and a control unit which are sequentially arranged at equal intervals in the conveying direction A. The first rocking-turn hand in the conveying direction is provided with a detection unit. The rocking-turn hands are provided with rewritable state codes, the control unit determines whether to start the rocking-turn hands to execute overturning actions or not according to the state codes of the corresponding rocking-turn hands, and the preset angle alpha can be set on site before use through the combination of the started rocking-turn hands. The turnover device for the section bar with the long and thin section is simple in structure and has very high practical application value.

Description

Technical Field

[0001] The invention relates to the technical field of profile processing, and in particular to a turning device for a slender cross-section profile and a turning control method thereof. Background Art

[0002] For slender cross-section profiles, such as the frame profiles of photovoltaic modules, multiple surfaces are usually required to undergo milling, drilling, tapping, chamfering and other processing steps. Due to its large span and heavy weight, the cross-section profile needs to be turned over after one surface is processed, and it must be transferred from production line A to production line B at the same time. If the profile angle of the cross-section profile is 90°, it needs to be turned over 90°, 180° or 270 degrees once to flip to other surfaces; when the stacking is completed, the openings of the lower layer of profiles are arranged side by side facing upwards, and one layer of profiles needs to be turned over 180 degrees in situ, and the robot grabs the layer of profiles to make the upper and lower profiles interlock. These different workstations require an automated and zero-defect turning device. The turning device of the prior art has the following technical problems:

[0003] (1) Non-in-situ flipping, cannot be clamped while flipping, and the position after flipping is inaccurate.

[0004] The turning over of the cross-section profile is usually not in-situ turning over, but moving forward a certain distance. At the same time, based on the inertia of turning over, the cross-section profile will move different distances in front of the working platform after turning over, resulting in inaccurate position, affecting the position positioning of the next process. The turning mechanism plays an important role in the continuous processing and beat adjustment of different surfaces of the workpiece. In-situ turning can improve the efficiency of the production line.

[0005] Jinan Guohong Building Materials Co., Ltd. discloses a flexible turning device for plastic-steel profiles (CN210682312U, publication date: June 5, 2020). The first conveyor belt 7 and the second conveyor belt 9 are respectively arranged in front and behind the turning disc 4. The three rotate simultaneously. The plastic-steel profile 16 is pushed into the card slot 5 of the turning disc 4 through the first conveyor belt 7. The turning disc 4 continues to rotate until the plastic-steel profile 16 rotates 180 degrees with the card slot to the surface of the second conveyor belt 9. The second conveyor belt 9 pulls the plastic-steel profile out of the card slot to achieve a 180-degree turning of the plastic-steel profile. However, the turning of the profile is not in-situ turning, but moves forward by the diameter of a turning disc 4. It cannot be clamped while turning. The position of the second conveyor belt 9 after turning is inaccurate, and it cannot be positioned in the downstream process of the production line.

[0006] (2) Once the flip angle is designed, other rotation angles cannot be set.

[0007] The cross-sectional profile is usually a rectangular cross-section. TREMBLAY BENOIT of Canada discloses a wood turning device (CA2317370A1, publication date: March 2, 2001), which uses a four-blade member 20 with four identical blade petals 30 spaced 90 degrees apart, each blade petal having a convex angle 30 with a flat front surface 34 and an arc-shaped rear surface 36. In operation, the conveyor moves in the direction indicated by the arrow 38. Initially, the wood 16 will contact the front surface 134 of the convex angle 130. This will cause the four-blade member 20 to start rotating. Figure 2 As shown, the rotation will cause the rear surface 36 of the cam 30 to lift the wood 16. Figure 3 and 4 As shown, continued rotation will cause the bottom surface of the wood 16 to fall on the conveyor belt 14, thereby completing a 180° rotation of the wood 16. However, the degree of the flipping angle needs to be poured on the conveyor belt, which is completed with the assistance of the conveyor belt. Each time the wood 16 passes through a four-blade member 20, it is flipped 180 degrees. After passing through two four-blade members 20, the wood 16 is flipped 360 degrees. The flipping angle cannot be set arbitrarily, which brings challenges to the universal applicability of the flipping mechanism.

[0008] Therefore, the art urgently needs a flipping device for cross-sectional profiles that can simply set any flipping angle, can achieve in-situ flipping, and can be used in automated production lines for conveyor belts. This has become a key problem that the traditional photovoltaic module frame profile production line urgently needs to overcome. Summary of the invention

[0009] In view of the defects existing in the above-mentioned prior art, the purpose of the present invention is to provide a flipping device for cross-sectional profiles and a flipping control method thereof, so as to solve the technical problems that the flipping angle can be set arbitrarily, in-situ flipping can be achieved, and the device can be used in an automated production line of a conveyor belt.

[0010] The object of the present invention is achieved in this way.

[0011] A turning device for a slender cross-section profile, comprising

[0012] The conveyor belt pair comprises two parallel and spaced conveyor belts, and the cross-sectional profile passes through the conveyor belt pair in a conveying direction A perpendicular to the length direction of the cross-sectional profile at a linear speed V 带 Convey forward at a constant speed;

[0013] The flipping mechanism is used to realize in-situ flipping of a preset angle α while the cross-section profile moves, and the preset angle α can be set on site before use; the flipping mechanism includes three shaking hands and a control unit arranged in sequence and at equal intervals along the conveying direction A, and the first shaking hand along the conveying direction is provided with a detection unit; the shaking hand is provided with an overwritable status code, and the control unit decides whether to start the shaking hand to perform the flipping action according to the status code of the corresponding shaking hand, and the preset angle α achieved by the combination of the started shaking hands can be set on site before use.

[0014] Furthermore, the rocking hand is a connecting rod mechanism, which includes a crank, a connecting rod and a rocker that are hingedly connected at the head and tail. The crank is rotatably arranged around a fixed driving shaft, and the rocker is rotatably arranged around a fixed driven pivot. The rotation of the crank around the driving shaft drives the rocker to swing back and forth around the driven pivot at the connecting rod position T1 and the flipping position T2. ​​The connecting rod position T1 is the extreme position C1, and the flipping position T2 is the extreme position C2. The angle between the rocker at the extreme positions C1 and C2 is the swing angle Ψ.

[0015] Furthermore, the rocker arm is linearly extended from the driven pivot end in the reverse direction and is integrally connected to the flip rod, and the flip rod and the rocker arm are located on both sides of the driven pivot.

[0016] Furthermore, it also includes a rocking claw, which is fixed at the hinged end of the rocking arm and the connecting rod or fixed at the free end of the flip rod; the rocking claw includes a claw body, and two parallel cross arms are fixed on the upper surface of the claw body; each cross arm is provided with a fixed-angle telescopic, and the fixed-angle telescopic includes a bolt, which is spirally arranged perpendicular to the upper surface of the cross arm, and the position of the bolt relative to the cross arm can be fixed by a nut tightened at the bottom; the lower part of one of the cross arms is connected to an L arm, and the end of the L arm is located below the bolt and facing the axis of the bolt, and a trigger is provided at the end of the L arm facing the axis of the bolt, and the on and off state of the trigger is the status code key i , i = 1, 2, 3; the two latches switch between the extended state and the retracted state at the same time. In the extended state, the bottom end of one latch leaves the trigger, and the key is set i =1; in the retracted state, the two latches are retracted to the bottom of the cross arm, and the lower end of one of the latches is facing the trigger, setting the key i =0; key i Sent to the control unit for storage.

[0017] Furthermore, it also includes

[0018] Variable angle telescopic, variable angle telescopic replaces fixed angle telescopic and is arranged on the swing claw, the two clamping bolts are connected with the cross arm at an adjustable angle to a preset locking angle β through variable angle telescopic, and the clamping bolts are extended or retracted in the direction of the locking angle β;

[0019] Angle compensation is arranged on the rocker or the flip lever. By rotating the pivot, the rocking claw is rotated as a whole by a compensation angle γ so that the cross-section profile of any profile angle can reach the level of an adjacent processing surface at the flipping position through a single flip of the rocking hand.

[0020] Further, assuming that the profile angle φ of the adjacent processing surfaces of the cross-sectional profile (W) and the swing angle Ψ of the swing hand (21), the compensation angle γ satisfies γ=Ψ-φ; assuming that the profile angle φ of the adjacent processing surfaces of the cross-sectional profile (W) and the swing angle Ψ of the swing hand (21), the compensation angle γ satisfies γ=Ψ-φ; if φ=90°, since the swing angle Ψ=90°, γ=0; if 0°<φ<90°, γ>0, the swing claw (24) is rotated clockwise by the compensation angle γ; if 90°>φ>180°, γ=Ψ-φ, then γ<0, the swing claw (24) is rotated counterclockwise by the compensation angle γ.

[0021] Furthermore, the variable-angle telescopic device includes a bolt sleeve, a worm gear pair and a locking nut. The bolt is spirally engaged in the bolt sleeve, and the bolt sleeve is rotatably arranged on the cross arm through a rotating pivot. A side plate is provided under the cross arm, and an arc groove with the rotating pivot as the center is provided on the side plate. A threaded clamping shaft is fixedly provided on the side of the bolt sleeve perpendicular to its rotation axis. The threaded clamping shaft is slidably engaged in the arc groove, and the other end is rotatably arranged on the locking nut. The arc groove is provided with an angle scale, and the angle scale reflects the angle between the bolt and the cross arm, which is the locking angle β.

[0022] Furthermore, the worm gear pair includes a worm wheel and a sleeve worm gear whose rotating axes intersect each other perpendicularly, a bolt sleeve is fixed in the inner hole of the sleeve worm gear, the inner hole of the bolt sleeve is threaded to cooperate with the bolt, and the shaft of the worm wheel is provided with a rotating handle.

[0023] Furthermore, the angle compensation includes a rotating motor, a driving gear, a plurality of transition gears and a driven gear, the driven gear is fixed to the rotating pivot, the rocker or flip lever is fixed with the rotating motor, the output shaft of the rotating motor is fixed with the driving gear, the plurality of transition gears are meshed with each other and are rotatably arranged on the rocker or flip lever in sequence, and the driving gear, the transition gear and the driven gear are meshed and transmitted in sequence.

[0024] A method for controlling a turning over device of a slender cross-section profile, comprising:

[0025] S1 sets the predetermined angle α of the flipping mechanism, initializes i=1, Key1=0, Key2=0, Key3=0;

[0026] Manually rotating the latch (26) of each swing handle (21) so that it is in an extended state or a fully retracted state to set a predetermined angle α;

[0027] S2: the control unit (23) periodically checks the detection unit (22) to see if the cross-sectional profile W has arrived; if it has arrived, execute S3; if not, execute S2;

[0028] S3 if Key i =1, then execute the flip of swing hand i and execute S4; if Key i =0, then execute S4;

[0029] S4 i=i+1, check if i>3? No, return to S3, yes, execute S5;

[0030] S5 returns the execution success information.

[0031] A turning device for cross-section profiles can realize in-situ turning of cross-section profiles and turning at any turning angle through the coordinated cooperation of a conveyor belt pair, a turning mechanism, and a connecting rod mechanism, or through the coordinated cooperation with variable angle telescopic and rotation angle compensation. The device has a simple structure and high practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front view of Embodiment 1 of a turning device for a cross-section profile of the present invention;

[0033] Figure 2 A top view of a turning device for a cross-section profile according to embodiment 1 of the present invention;

[0034] Figure 3 This is a front view of a crank handle of Example 1 of a flipping device for a cross-sectional profile of the present invention.

[0035] Figure 4 It is a cross-sectional view taken along line AA of a rocker of Embodiment 1 of a turning device for a cross-sectional profile of the present invention;

[0036] Figure 5 Embodiment 1 of the turning device for a cross-section profile of the present invention Figure 4 Top view of the .

[0037] Figure 6 This is a schematic diagram of Example 1 of a turning device for a cross-section profile of the present invention, in which the rocking claw of Example 1 is in a fully retracted state.

[0038] Figure 7 This is a flow chart of a flipping control method of Example 1 of a flipping device for a cross-section profile of the present invention.

[0039] Figure 8 This is a front view of a crank handle of Example 2 of a flipping device for a cross-sectional profile of the present invention.

[0040] Fig. 9It is a main cross-sectional view of a rocker of Example 2 of a turning device for a cross-sectional profile of the present invention;

[0041] Fig.10 It is a front view of a third embodiment of a turning device for a cross-section profile of the present invention;

[0042] Fig.11 It is a top view of Embodiment 3 of a turning device for a cross-section profile of the present invention;

[0043] Fig.12 This is a schematic diagram of flipping an equilateral triangle cross-section profile according to Embodiment 3 of a flipping device for a cross-section profile of the present invention;

[0044] Fig.13 This is a schematic diagram of flipping a regular pentagonal cross-section profile according to Embodiment 3 of a flipping device for a cross-section profile of the present invention;

[0045] Fig.14 It is a structural schematic diagram of a cross-section profile turning device of Example 3 of the present invention, in which the variable angle telescopic 40 is rotated 30° and retracted;

[0046] Fig.15 It is a structural schematic diagram of a cross-section profile turning device of Example 3 of the present invention in a state of being extended by rotating 30° with a variable angle telescopic 40°;

[0047] Fig.16 It is a structural schematic diagram of a vertically retracted state of the variable angle telescopic 40 clamping bolt of Example 3 of a turning device for a cross-section profile of the present invention;

[0048] Fig.17 It is a structural schematic diagram of a state in which the variable angle telescopic 40 clamping bolt is vertically extended in Example 3 of a turning device for a cross-section profile of the present invention;

[0049] Reference numerals in the above figures:

[0050] 10 conveyor belt pair, 11 conveyor belt, 12 power source, W cross-section profile, A conveying direction

[0051] 20 flip mechanism, 21 swing hand, 22 detection unit, 23 control unit, 24 swing claw, 25 cross arm, 26 bolt, 27 trigger, 28 claw body, 29 positioning hole

[0052] 30 connecting rod mechanism, 31 crank, 32 connecting rod, 33 rocker, 34 driving shaft, 35 driven pivot, 36 flip rod, 37 positioning pin, 38 connecting plate

[0053] 40 variable angle telescopic, 41 bolt sleeve, 42 worm gear pair, 43 side plate, 44 locking nut, 45 rotating pivot, 46 threaded clamp shaft, 47 arc groove, 48 angle scale, 49 rotating handle

[0054] 50 rotation angle compensation, 51 rotating motor, 52 driving gear, 53 transition gear, 54 driven gear DETAILED DESCRIPTION

[0055] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, but are not intended to limit the scope of the present invention.

[0056] Example 1

[0057] A turning device for a cross-section profile, comprising

[0058] The conveyor belt pair 10 includes two parallel conveyor belts 11 spaced apart from each other. The cross-sectional profile W passes through the conveyor belt pair 10 in a conveying direction A perpendicular to the length direction of the cross-sectional profile at a linear speed V. 带 Convey forward at a constant speed;

[0059] The flipping mechanism 20 is used to realize in-situ flipping of a predetermined angle α while the cross-sectional profile is moved, and the predetermined angle α can be set on site before use; the flipping mechanism 20 includes three shaking hands 21 and a control unit 23 arranged in sequence along the conveying direction A, and the first shaking hand 21 along the conveying direction is provided with a detection unit 22; the shaking hand 21 is provided with a rewritable status code, and if the detection unit 22 detects the cross-sectional profile, the control unit 23 decides whether to start the shaking hand 21 to perform the flipping action according to the status code of the corresponding shaking hand 21, and the predetermined angle α achieved by the combination of the started shaking hands 21 can be set on site before use.

[0060] The crank handle 21 is a connecting rod mechanism 30, which includes a crank 31, a connecting rod 32 and a rocker 33 that are hingedly connected at the head and tail. The crank 31 is rotatably arranged around a fixed driving shaft 34, and the rocker 33 is rotatably arranged around a fixed driven pivot 35. The crank 31, the connecting rod 32 and the rocker 33 constitute a crank-rocker mechanism; the crank 31 rotates around the driving shaft 34 to drive the rocker 33 to swing back and forth around the driven pivot 35 at a swing angle Ψ between the connecting rod position T1 and the flipping position T2.

[0061] The connecting rod position T1 is the extreme position C1, the flip position T2 is the extreme position C2, and the angle between the rocker 33 at the extreme positions C1 and C2 is the swing angle Ψ. Preferably, the swing angle Ψ=90°. When the rocker 33 is at the extreme positions C1 and C2, the acute angle between the corresponding positions of the crank 31 is the extreme position angle θ. Preferably, the extreme position angle θ=0°.

[0062] The three swinging hands 21 are arranged in sequence along the conveying direction at equal intervals. The driven pivot 35 of the rocking arm 31 is taken as the base point. The distance between the driven pivots 35 of two adjacent swinging hands 21 is the interval distance s. Because the interval distance s is fixed, the flipping mechanism 20 only needs one detection unit 22 to trigger the first swinging hand 21. The subsequent swinging hands 21 can be triggered in sequence according to the trigger time T. Preferably, the interval distance s is selected as the interval distance between the two driven pivots 35 when the flipping position C2 of the front swinging hand coincides with the connecting rod position C1 of the rear swinging hand, that is, the front and back sequence arrangement with zero interval. If the interval distance is greater than zero interval, the trigger time of the interval distance s is the flipping time t plus the time for the conveyor belt pair 10 to be transported from the flipping position T2 to the connecting rod position T1 of the next adjacent swinging hand 21 as the trigger time T.

[0063] The in-situ flipping is realized as follows: the flipping mechanism 20 flips the cross-sectional profile by a predetermined angle α along the conveying direction A after a flipping time t, and the horizontal distance covered is the same as the horizontal distance of the conveyor belt pair 10 at a linear speed V. 带 The horizontal distance travelled by the driven cross-section profile with the flipping time t is equal.

[0064] The conveyor belt pair 10 is powered by a power source 12, which is coupled to the drive shaft 35 of the turnover mechanism 20 through a speed change mechanism at a fixed speed ratio K, and the fixed speed ratio k satisfies:

[0065] like Figure 3 As shown, for the three swing hands, the swing angle Ψ, the straight line distance x between the connecting rod position C1 and the flip position C2 is

[0066]

[0067] In addition to the flipping, the cross-sectional profile W is translated on the conveyor belt pair 10 by a distance S1

[0068] s1=sx (2)

[0069] Assume that the crank 31 has a speed V 柄 The speed V 柄 is the angular velocity, in radians per second, and the flipping time t of the flipping mechanism 20 satisfies:

[0070] The conveyor belt pair 10 is driven at a speed V 带 Convey forward at a uniform speed, according to Further

[0071] So we get

[0072] Wherein, k is a fixed speed ratio, v-belt is the conveying speed of the conveyor belt, V-handle is the rotation speed of the crank, Ψ is the swing angle of the rocker of the combined rod mechanism 30, and θ is the extreme position angle of the connecting rod mechanism 30.

[0073] Since the lengths of the crank 31, connecting rod 32 and rocker 33 of the crank-rocker mechanism and the positions of the drive shaft 34 and the driven pivot 35 are determined, the swing angle Ψ and the extreme position angle θ are also determined. Therefore, the fixed speed ratio k is fixed, and the speed change mechanism can be used according to the ratio to achieve the above-mentioned in-situ flipping.

[0074] The head end of the rocker 31 is hingedly connected to the connecting rod 32, and the tail end is hingedly connected to the driven pivot 35. The hinged end of the rocker 31 and the connecting rod 32 is fixedly provided with a rocking claw 24, which includes a claw body 28, and two parallel cross arms 25 are fixedly provided on the upper surface of the claw body 28; each cross arm 25 is provided with a fixed angle telescope, which includes a clamping bolt 26, and the clamping bolt 26 is spirally arranged perpendicular to the cross arm 25; the lower part of one cross arm is connected to an L arm, and the end of the L arm is located below the clamping bolt 26 and faces the axis of the clamping bolt 26. The end of the L arm is provided with a trigger 27 facing the axis of the clamping bolt 26, and the on and off state of the trigger 27 is the state code. The position of the clamping bolt 26 on the cross arm 25 can be fixed by a nut tightened at the bottom. The latch 26 can be switched between the extended state and the retracted state by rotating. In the extended state, the two latches 26 extend the height h of the cross arm 25, which is greater than 1 / 2 of the height of the cross-section profile. The bottom end of the latch 26 leaves the trigger 27, and the state information of the trigger 27 is 1. The state information state code Key i =1 is sent to the control unit 23 for storage, i represents the number of the hand shake, i=1, 2, 3; in the retracted state, the two latches 26 are retracted to the bottom of the cross arm 25, and the lower end of the latch 26 is facing the trigger 27. The trigger 27 rewrites the state information to 0 at this moment. The state information state code Key i =0 is sent to the control unit 23 for storage, i represents the number of the hand shake, i=1, 2, 3.

[0075] Regarding the connection positioning of the rocking claw 24 and the rocking arm 33: the intersection of the two bolts 26 and the upper surface of the cross arm 25 is connected to form a flip reference line OO, and the connection positioning satisfies the following conditions: the cross-sectional profile is close to the outer contour lines of the two bolts 26 to form a close plane π1, and the upper surfaces of the two cross arms 26 constitute a supporting plane π0. The two planes intersect at a close straight line L0, and the central axis of the rocking arm 33 intersects with the close straight line L0 at one point.

[0076] A method for controlling a turning over device of a slender cross-section profile, comprising:

[0077] S1 sets the predetermined angle α of the flipping mechanism, initializes i=1, Key1=0, Key2=0, Key3=0;

[0078] Manually rotate the latch 26 of each swing handle 21 so that it is in an extended state or a retracted state to set a predetermined angle α;

[0079] S2: The control unit 23 periodically checks the detection unit 22 to see if a cross-section profile has arrived. If it has arrived, execute S3; if not, execute S2;

[0080] S3 if Key i =1, then the flip of the swing hand i is executed. At the same time, if i = 1 or 2, the timer IntervalTime(i) starts timing until the trigger time T, and S4 is executed; if Key i =0, then execute S4;

[0081] S4 i=i+1, check if i>3? No, return to S3, yes, execute S5;

[0082] S5 returns the execution success information.

[0083] A turning device and a turning control method for a slender cross-section profile, the beneficial technical effects of which are as follows:

[0084] For rectangular cross-section profiles with single-side openings, such as the frame profiles of photovoltaic modules, when the swing angle Ψ=90° is adopted, the swing hand 21 is rotated from the connecting rod position T1 to the flipping position T2, and the parallel cross arm 29 of the swing claw 24 is rotated counterclockwise by 90°, so that the cross-section profile is exactly flipped 90°. The drilling process on each side of the frame profile requires the frame profile to be flipped 90° once, and the processing of three sides requires a single-direction continuous flipping of up to 270°. Specifically, with respect to the flipping mechanism 20 set between the two parallel first hole position lines W1 and the second hole position lines W2, the swing hand i is either not flipped or flipped 90°. Through this combination, the setting of the flip angle α can be completed in advance, which meets the requirement that the preset processing surface of the frame profile of the second hole position line W2 is horizontally facing upward. Therefore, in actual production, if the angle of the flip mechanism 20 cannot be changed once installed, such as the flipping action can only flip 90°, then the three processing surfaces of the frame profile need at least three hole lines W1, W2, W3 and two sets of flip mechanisms 20 to meet the hole processing requirements of all three surfaces, and the angle of the flip mechanism 20 of the present application can be switched and set between 90°, 180°, and 270°, so only one set of flip mechanisms is needed to cooperate with two hole lines W1 and W2 to meet the requirements. When changing the surface, only the drilling rig interval of the second hole line W2 needs to be adjusted to meet the surface processing requirements. In other words, by setting the flip angle of the flip mechanism and adjusting the drilling rig position of the second hole line W2, the investment cost of a production line can be reduced at a relatively low cost, which greatly reduces the investment burden of the enterprise.

[0085] Example 2

[0086] The mechanism of the swinging hand is improved, and the other structures are the same as those in Example 1, and only the different structures are described here.

[0087] A turning device for a cross-section profile,

[0088] The connecting rod mechanism 30 includes a crank 31, a connecting rod 32 and a rocker 33 which are hingedly connected at the head and tail. The crank 31 is rotatably arranged around a fixed driving shaft 34, and the rocker 33 is rotatably arranged around a fixed driven pivot 35. The crank 31, the connecting rod 32 and the rocker 33 constitute a crank rocker mechanism; the rocker 33 is connected to the flip rod 36 by extending the end of the driven pivot 35 in the opposite direction, and the flip rod 36 and the rocker 33 are located on both sides of the driven pivot 35 to form a lever mechanism. The flip rod 36 is connected to the rocker 33 in a straight line. The crank 31 rotates around the driving shaft 34 to drive the rocker 33 to swing back and forth between the extreme position C1 and the extreme position C2 around the driven pivot 35 at a swing angle Ψ, and at the same time, the flip rod 36 swings back and forth when it is at the connecting rod position T1 and the flip position T2.

[0089] The swinging claw 24 is fixed to the free end of the flipping rod. Regarding the connection and positioning between the swinging claw 24 and the flipping rod 36: the intersection of the two bolts 26 and the upper surface of the cross arm 26 is connected to form a flipping reference line OO, the claw body 28 has an inclined mounting surface 28.1, and a positioning hole 29 is vertically arranged on the inclined mounting surface 28.1. The positioning hole 29 meets the following conditions: the cross-sectional profile is close to the outer contour of the two bolts 26 to form a close plane π1, the upper surface of the two cross arms 25 forms a supporting plane π0, the two planes intersect at a close straight line L0, and the central axis of the positioning hole 29 intersects with the close straight line L0 at one point. The end of the flipping rod 36 is provided with a positioning pin 37 and a connecting plate 38 extending perpendicularly to both sides of the positioning pin. The positioning pin 37 is clearance-matched with the positioning hole 29 and the connecting plate 38 is close to the inclined mounting surface 28.1 of the claw body 28 and is fastened by bolts.

[0090] The main improvement intention is to avoid the fixed connection between the rocking claw 24 and the rocking arm, and to prevent interference from the hinged installation of the connecting rod and the rocking arm. The rocking claw 24 is installed at the end of the rocking arm 33, and it is also hinged with one end of the connecting rod 32. The improvement is: the rocking arm mechanism is used as one end of the input of the lever mechanism, and the other end of the lever mechanism is used as the output end, and the rocking claw 24 is installed. That is, the rocking arm 33, the crank 31, and the connecting rod 32 constitute a crank rocker mechanism, and the rocking arm 33 and the flip rod 36 constitute a lever mechanism.

[0091] Example 3

[0092] The installation of the swing claw is improved, and the other structures are the same as those in embodiments 1 and 2, and only the different structures are described here.

[0093] A turning device for a cross-section profile, further comprising

[0094] The variable angle telescopic device 40 is used for adjusting the angle of the two bolts 26 to be connected to the cross arm 25 at a preset locking angle β, and the bolts 26 are extended or retracted at the locking angle β; the variable angle telescopic device 40 includes a bolt sleeve 41, a worm gear pair 42 and a locking nut 44, the bolts 26 are screwed into the bolt sleeve 41, and the bolt sleeve 41 is rotatably arranged on the cross arm 25 through a rotating pivot 45; a side plate 43 is arranged under the cross arm 25, and an arc groove 47 with the rotating pivot 45 as the center is arranged on the side plate 43, and a threaded clamping shaft 46 is fixed on the side of the bolt sleeve 41 perpendicular to its rotation axis, and the threaded clamping shaft 46 is slidably fitted in the arc groove 47, and the other end is rotatably arranged on the locking nut 44. The arc groove 47 is provided with an angle scale 48, which reflects the angle between the clamping bolt 26 and the cross arm 25, that is, the clamping angle β; the worm gear pair 42 includes a worm 42.1 and a sleeve worm wheel 42.2, the inner hole of the sleeve worm wheel 42.2 is fixed with a clamping bolt sleeve 41, and the inner hole of the clamping bolt sleeve 41 is threaded to match the clamping bolt 26. The shaft of the worm wheel 42.1 is provided with a rotating handle 49.

[0095] The angle compensation 50 is arranged on the rocking arm 33 and rotates the rocking claw 24 as a whole by a compensation angle γ through the rotating pivot 45 so that a single flip of the flipping mechanism 20 can achieve the level of an adjacent processing surface of a cross-section profile with any profile angle φ at the flipping position. The angle compensation 50 includes a rotating motor 51, a driving gear 52, a transition gear 53 and a driven gear 54. The driven gear 54 is fixedly arranged on the rotating pivot 45. A plurality of transition gears 53 mesh with each other and are rotatably arranged on the rocking arm 33 or the flipping arm 36 in sequence. A boss portion 33.1 of the rocking arm 33 or the flipping arm 36 is fixedly provided with the rotating motor 51. The output shaft of the rotating motor 51 passes through the boss portion 33.1 and is fixedly provided with a driving gear 52. The driving gear 52 meshes with the first transition gear 53, and the last transition gear 53 meshes with the driven gear 54.

[0096] The compensation angle γ is determined as follows: Assuming the profile angle φ of the adjacent processing surface of the cross-section profile W, γ = Ψ-φ, the positive and negative represent the compensation rotation direction, positive means the compensation angle γ is rotated clockwise, and negative means the compensation angle γ is rotated counterclockwise. If φ = 90°, since the swing angle Ψ = 90°, γ

[0097] =0; Fig.12 As shown, if 0°<φ<90°, then γ=Ψ-φ, γ>0, which means that the swing claw 24 is Fig.12 Rotate clockwise to compensate for the angle γ; Fig.13 As shown, if 90°>φ>180°, then γ=Ψ-φ, γ<0, which means that the swing claw 24 is Fig.13The compensation angle γ is rotated counterclockwise. In this way, only a crank rocker mechanism with a fixed rocking angle Ψ is used to achieve the rotation of any profile angle φ in one flip. Because the rotating pivot 45 is fixedly connected to the two rocking claws 24, and the cross-sectional profile W is to be clamped on the clamping bolt 26 of the rocking claw 24, the diameter of the driven gear 54 is particularly small. In order to allow space for the rotating motor 51 to be installed, a plurality of meshing transition gears 53 are provided to increase the distance between the rotating motor 51 and the driven gear 54.

[0098] When in use, first loosen the locking nut 44, and then drive the variable angle telescope 40 to rotate around the rotating pivot 45 to the preset locking angle β through the locking nut, and the angle scale 48 can be shown. After rotating to the preset angle scale, tighten the locking nut 54 to fix the locking angle β; for balance, two rocking claws 24 are symmetrically provided on both sides of the rocker 33 or the flip lever 36, and both sides must be rotated and fixed to the locking angle β to complete the setting of the preset locking angle β, and the locking angle β is input into the control unit 23 of the flip mechanism 20; then, shake the rotating handle of the worm wheel, the worm 42.1 drives the sleeve worm wheel 42.2, the sleeve worm wheel drives the bolt sleeve 51 to rotate, and the bolt sleeve 51 rotates to drive the bolt 26 to move up and down therein to switch between the extended state and the retracted state.

[0099] Principle description: In order to solve the technical problem of "being able to easily set any flip angle, realizing in-situ flipping, and being able to be used in the automated production line of the conveyor belt", the following innovative ideas are adopted:

[0100] (1) The turning mechanism 20 cooperates with the conveyor belt pair 10 to achieve in-situ turning.

[0101] The turning mechanism 20 turns the cross-sectional profile by a predetermined angle α along the conveying direction A after a turning time t, and the horizontal distance traveled is the same as the horizontal distance traveled by the conveyor belt pair 10 at a linear speed V 带 The driving cross-sectional profile is driven to achieve in-situ flipping by making the horizontal distance traveled by the flipping time t equal. The driving shaft of the conveyor belt pair 10 drives the conveyor belt wheel and the driving shaft at the same time, and is driven by the speed change mechanism at a fixed speed ratio k, so that the flipping mechanism 20 can flip the cross-sectional profile W in-situ.

[0102] (2) The connecting rod mechanism 30 cooperates with the latch 26 in the extended position or the retracted position to achieve a doubling of the flip angle.

[0103] Taking the rocking angle of the rocker 33 as 90° as an example, the latch 26 of the rocking hand 1 is in the retracted position, and the latches 26 of the rocking hands 2 and 3 are in the extended position, then the flipping mechanism 20 can flip two 90°, that is, 180°. If you want the flipping mechanism to flip only 90°, the latches 26 of two of the rocking hands need to be set in the retracted position. If you want the flipping mechanism 20 to flip 270°, the latches of the three rocking hands need to be set in the extended position, and the final flipping angle can be doubled. This doubling setting is particularly suitable for the flipping of multiple processing surfaces of regular polygonal cross-section profiles. Only one set of flipping mechanisms 20 is needed to flexibly realize the flipping setting of the predetermined angle α of different processing surfaces, which is very flexible and highly practical.

[0104] (3) The double setting of the variable angle telescopic 40, the rotation angle compensation 50 and the flip angle can realize the flipping mechanism to flip at any angle.

[0105] For each swinging hand 21, as long as the swing angle Ψ, the length of the rocker, connecting rod and crank, and the position of the drive shaft 34 and the driven pivot 35 are fixed, the degree to which each swinging hand can be turned can be fixed. Taking the swing angle of the rocker 33 as 90° as an example, each swinging hand can turn the cross-section profile by 90°, and this turning is suitable for turning the cross-section profile with a profile angle φ=90°. Assuming that the profile angle φ of the cross-section profile, φ is an arbitrary angle, for each swinging hand 21, firstly, the clamping bolt 26 is set at the profile angle φ corresponding to the cross arm 25 through the variable angle telescopic 40, and when the swinging hand is turned, the angle compensation 50 is rotated to compensate the angle γ (γ=Ψ-φ) to realize the turning of the profile angle φ; and then the turning angle of the turning mechanism 20 is realized by setting the clamping bolt 26 at the extended position or the retracted position of the three swinging hands. This structure allows a flipping mechanism 20 to adapt to flipping at different profile angles. For example, a flipping mechanism that can only flip at a preset angle α of 90° and its multiples, the flipping mechanism has been installed and used, and suddenly the cross-sectional profile W is transformed into a triangular cross-sectional profile with a profile angle φ=60°. Then, the shaking handle 21 that flips 90° can achieve a flip of 60° and its multiples each time through the cooperation of the variable angle telescopic 40 and the angle compensation 50.

[0106] A flipping device for cross-sectional profiles realizes in-situ flipping of cross-sectional profiles and flipping at any flipping angle through the coordinated cooperation of a conveyor belt pair 10, a flipping mechanism 20, and a connecting rod mechanism 30, or can further cooperate with a variable angle telescope 40 and an angle compensation 50. The device has a simple structure and high practical application value.

Claims

1. A turning device for a slender cross-section profile, characterized in that: include The conveyor belt pair (10) comprises two parallel conveyor belts (11) arranged at intervals. The cross-sectional profile (W) passes through the conveyor belt pair (10) in a conveying direction A perpendicular to the length direction of the cross-sectional profile at a linear speed V. 带 Convey forward at a constant speed; The turning mechanism (20) is used to realize in-situ turning of a cross-sectional profile at a predetermined angle α while the cross-sectional profile is moving, and the predetermined angle α can be set on site before use; the turning mechanism (20) comprises three shaking hands (21) arranged in sequence and at equal intervals along a conveying direction A and a control unit (23), wherein the first shaking hand (21) along the conveying direction is provided with a detection unit (22); the shaking hand (21) is provided with a rewritable status code, and the control unit (23) determines whether to activate the shaking hand (21) to perform a turning action according to the status code of the corresponding shaking hand (21), and the predetermined angle α achieved by the combination of the activated shaking hands (21) can be set on site before use.

2. The turning device for a slender cross-section profile according to claim 1, characterized in that: The swing handle (21) is a connecting rod mechanism (30), which comprises a crank (31), a connecting rod (32) and a rocker (33) which are hingedly connected at the head and tail ends. The crank (31) is rotatably arranged around a fixed driving shaft (34), and the rocker (33) is rotatably arranged around a fixed driven pivot (35). The crank (31) rotates around the driving shaft (34) to drive the rocker (33) to swing back and forth around the driven pivot (35) at a connecting rod position T1 and a flipping position T2. ​​The connecting rod position T1 is an extreme position C1, and the flipping position T2 is an extreme position C2. The angle between the rocker (33) at the extreme positions C1 and C2 is a swing angle Ψ, and Ψ=90°.

3. The turning device for a slender cross-section profile according to claim 2, characterized in that: The rocker (33) is linearly extended from the end of the driven pivot (35) in the opposite direction and is integrally connected to the flip rod (36), and the flip rod (36) and the rocker (33) are located on both sides of the driven pivot (35).

4. The turning device for a slender cross-section profile according to claim 3, characterized in that: The swing claw (24) is fixedly arranged at the hinged end of the rocking rod and the connecting rod or at the free end of the flip rod; the swing claw (24) includes a claw body (28), and two parallel cross arms (25) are fixedly arranged on the upper surface of the claw body (28); each cross arm (25) is provided with a fixed angle telescope, and the fixed angle telescope includes a clamping bolt (26), and the clamping bolt (26) is spirally arranged perpendicular to the upper surface of the cross arm, and the position of the clamping bolt (26) relative to the cross arm (25) can be fixed by a nut tightened at the bottom; the lower part of one of the cross arms is connected to an L arm, and the end of the L arm is located below the clamping bolt (26) and faces the axis of the clamping bolt (26), and a trigger (27) is provided at the end of the L arm and faces the axis of the clamping bolt (26), and the on and off state of the trigger (27) is the state code key i , i = 1, 2, 3; the two latches (26) switch between the extended state and the retracted state at the same time. In the extended state, the bottom end of one latch (26) leaves the trigger (27), and the key is set i =1; in the retracted state, the two latches (26) are retracted to the bottom of the cross arm (25), and the lower end of one of the latches (26) is facing the trigger (27), setting the key i =0; key i The data is sent to the control unit (23) for storage and standby use.

5. The turning device for a slender cross-section profile according to claim 4, characterized in that: Also includes The variable angle telescopic device (40) is arranged on the swinging claw (24) to replace the fixed angle telescopic device. The two clamping bolts (26) are connected to the cross arm (25) through the variable angle telescopic device (40) so as to be adjustable in angle to form a preset locking angle β, and the clamping bolts (26) are extended or retracted in the direction of the locking angle β; The angle compensation (50) is arranged on the rocking arm (33) or the flipping arm (36), and the rocking claw (24) is rotated as a whole by a compensation angle γ by rotating the rotating pivot (45) so that a cross-section profile with any profile angle can reach the level of an adjacent processing surface at the flipping position by flipping the rocking hand (21) once.

6. The turning device for a slender cross-section profile according to claim 5, characterized in that: Assuming the profile angle φ of the adjacent processing surfaces of the cross-sectional profile (W) and the swing angle Ψ of the swing hand (21), the compensation angle γ satisfies γ=Ψ-φ; if φ=90°, since the swing angle Ψ=90°, γ=0; if 0°<φ<90°, γ>0, and the swing claw (24) is rotated clockwise by the compensation angle γ; if 90°>φ>180°, γ=Ψ-φ, then γ<0, and the swing claw (24) is rotated counterclockwise by the compensation angle γ.

7. The turning device for a slender cross-section profile according to claim 5, characterized in that: The variable angle telescopic device (40) comprises a bolt sleeve (41), a worm gear pair (42) and a locking nut (44); the bolt (26) is screwed in the bolt sleeve (41); the bolt sleeve (41) is rotatably arranged on the cross arm (25) through a rotating pivot (45); a side plate (43) is arranged under the cross arm (25); a circular arc groove (47) with the rotating pivot (45) as the center is arranged on the side plate (43); a threaded clamping shaft (46) is fixedly arranged on the side of the bolt sleeve (41) perpendicular to its rotation axis; the threaded clamping shaft (46) is slidably fitted in the circular arc groove (47); the other end is rotatably arranged on the locking nut (44); the circular arc groove (47) is provided with an angle scale (48); the angle scale (48) reflects the angle between the bolt (26) and the cross arm (25), that is, the locking angle β.

8. The turning device for a slender cross-section profile according to claim 7, characterized in that: The worm gear pair (42) comprises a worm wheel (42.1) and a sleeve worm (42.2) whose rotating axes intersect each other perpendicularly. A bolt sleeve (41) is fixedly arranged in the inner hole of the sleeve worm (42.2). The inner hole of the bolt sleeve (41) is threadedly matched with the bolt (26). The shaft of the worm wheel (42.1) is provided with a rotating handle (49).

9. The turning device for a slender cross-section profile according to claim 8, characterized in that: The rotation angle compensation (50) comprises a rotating motor (51), a driving gear (52), a transition gear (53) and a driven gear (54); the driven gear (54) is fixedly arranged on a rotating pivot (45); a plurality of transition gears (53) are meshed with each other and are sequentially rotatably arranged on a rocking arm (33) or a flipping arm (36); the rotating motor (51) is fixedly arranged on the rocking arm (33) or the flipping arm (36); the output shaft of the rotating motor (51) is fixedly arranged with a driving gear (52); the driving gear (52), the transition gear (53) and the driven gear (54) are sequentially meshed for transmission.

10. A method for controlling the turning over of a turning device for a slender cross-section profile according to any one of claims 1 to 9, characterized in that: include S1 sets the predetermined angle α of the flipping mechanism, initializes i=1, Key1=0, Key2=0, Key3=0; Manually rotating the latch (26) of each swing handle (21) so that it is in an extended state or a fully retracted state to set a predetermined angle α; S2: the control unit (23) periodically checks the detection unit (22) to see if the cross-sectional profile W has arrived; if it has arrived, execute S3; If no, execute S2. S3 if Key i =1, then execute the flip of swing hand i and execute S4; if Key i =0, then execute S4; S4 i=i+1, check if i>3? No, return to S3, yes, execute S5; S5 returns the execution success information.

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