Diode pin high-speed bending device

Abstract

The invention relates to bending equipment, and provides a diode pin high-speed bending device which comprises a supporting frame, a bending mechanism and a bending mechanism. The suspension arms are symmetrically mounted on two sides of the upper part of the support frame; the conveyor belts are symmetrically mounted on two sides of the lower part of the support frame and are positioned under the suspension arm; the double-shaft motor is centrally mounted between the two suspension arms; the eccentric wheel is rotationally mounted on the suspension arm and is driven by a double-shaft motor to rotate; the movable frame is installed on the suspension arm in a sliding mode, the movable frame slides up and down above the conveying belt, and side edge plates extending downwards are arranged on the two sides of the movable frame; two ends of the pull rod are respectively connected with the eccentric wheel and the movable frame; the bearing plates are symmetrically installed on the two sides of the conveying belt. A resistor is placed on the conveying belt to be conveyed, the double-shaft motor drives the movable frame to move up and down, the movable frame can press and bend a resistor pin located below through the side edge plate in the rapid lifting and moving process, and the rapid bending effect can be achieved through acceleration of the lifting frequency of the movable frame.

Description

Technical Field

[0001] The present invention relates to a bending device, and more particularly to a high-speed bending device for diode pins. Background Art

[0002] During the production of wire-wound resistors, there are relatively long lead wires at both ends. The lead wires at both ends are in a straight line with the wire-wound resistor. When the wire-wound resistor is installed on a circuit board, the straight lead wires at both ends need to be bent by 90 degrees before the lead wires can be inserted into the circuit connection holes. Therefore, the lead wires often need to be bent in advance before the wire-wound resistor is used.

[0003] The basic principle of the existing automatic bending device is as Figure 1 shown. Support grooves are evenly spaced on the object support. The leads of the resistor are placed in the support grooves to hold up the resistor. There is a feeding device in the middle of the object support. A placement groove for accommodating the resistor is provided on the feeding device. Above the feeding device, there is a lifting arm. Telescopic air rods are provided on both sides of the lifting arm, and pressing plates are installed on the telescopic air rods. Specifically, the lifting arm moves down to press the resistor in the placement groove, and the pressing plates are pushed out by the telescopic air rods to press the leads of the resistor to achieve bending. After bending, the feeding device first lifts the resistor and then moves forward a certain distance and then lowers it. Subsequently, the feeding device returns to its original position to lift the bent resistor to the front, and the unbent ones will be lifted under the lifting arm to continue the bending operation. In the process of implementing this bending technology, the bending speed of the resistor leads depends on the feeding speed of the feeding device. Since the feeding device needs to move at multiple angles, it is impossible to quickly move the position of the resistor on the object support. Too fast lifting action is likely to cause the resistor to fall off the object support. Therefore, restricted by the feeding device, the speed of automatic bending of the resistor cannot be effectively and significantly improved. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the above-mentioned prior art. For this purpose, the present invention provides a high-speed bending device for diode pins.

[0005] To achieve the above object, the present invention provides a high-speed bending device for diode pins, comprising: a support frame; lifting arms symmetrically mounted on both sides of the upper part of the support frame; conveyor belts symmetrically mounted on both sides of the lower part of the support frame and located directly below the lifting arms; a double-shaft motor centrally mounted between the two lifting arms; eccentric wheels rotatably mounted on the lifting arms and driven to rotate by the double-shaft motor; a movable frame slidably mounted on the lifting arms, the movable frame sliding up and down above the conveyor belts, and side plates extending downward being provided on both sides of the movable frame; a pull rod with its two ends respectively connected to the eccentric wheel and the movable frame, and the movable frame moving up and down as the eccentric wheel rotates; receiving plates symmetrically mounted on both sides of the conveyor belts; resistors are conveyed through the conveyor belts and pass under the movable frame, after the resistor pins are placed on the receiving plates, the movable frame moves downwards and drives the side plates to press down and bend the resistor pins.

[0006] As a further improvement of the solution, it further comprises: receiving grooves evenly spaced and opened on the belt surface of the conveyor belt, and the resistors are embedded on the belt surface through the receiving grooves; an ejecting member provided at the sending end of the conveyor belt for ejecting the resistors embedded on the belt surface.

[0007] As a further improvement of the solution, it further comprises: notches opened on the belt between the receiving grooves, so that the two end faces of the receiving grooves can apply a free clamping force to the resistors.

[0008] As a further improvement of the solution, the ejecting member comprises: an intermediate groove opened in a complete circle around the inner circle of the belt, and the depth of the intermediate groove is connected to the receiving groove, so that a through opening leading to the intermediate groove is opened on the receiving groove; a fixing ring fixed in the driving wheel area on one side of the conveyor belt, and the fixing ring does not participate in rotation together with the driving wheel; a protruding edge provided on the fixing ring, and the protruding edge can be embedded in the intermediate groove and abuts against the through opening.

[0009] As a further improvement of the solution, it further includes: an installation chamber is opened in the middle of the conveyor belt; a first hydraulic push rod is installed on the side wall of the conveyor belt; an elastic reset key is arranged on the first hydraulic push rod for keeping the first hydraulic push rod capable of resetting after being pressed; a second hydraulic push rod is arranged in the installation chamber; a guide block is arranged in the installation chamber, and the receiving plate is slidably arranged on the guide block; there are two groups of folding connecting rods, which are respectively on both sides of the installation chamber, and both ends are respectively connected to the receiving plates on both sides, and both ends of the second hydraulic push rod are respectively connected to the folding connecting rods on both sides; the liquid paths of the first hydraulic push rod and the second hydraulic push rod are communicated with each other through pipes, and after pushing the first hydraulic push rod, the second hydraulic push rod is pushed out, and the expansion and contraction of the second hydraulic push rod drives the folding connecting rods to fold and pull the receiving plate to slide on the guide block, so that the two receiving plates approach or move away from each other.

[0010] As a further improvement of the solution, the edges of the top of the receiving plate are arc chamfers.

[0011] As a further improvement of the solution, it further includes: an upper guide plate is installed on the edge of one side of the boom; a lower guide plate is installed on one side of the conveyor belt on the same side as the upper guide plate. The upper guide plate and the lower guide plate are parallel to each other, and there is a gap allowing the resistor to pass through between them to guide the resistor to fall on the belt body. A sinking part close to the belt body is arranged on the upper guide plate to squeeze the resistor into the receiving groove through the sinking part.

[0012] As a further improvement of the solution, it further includes: a bottom plate is installed on the side walls on both sides of the conveyor belt, on the side away from the upper guide plate; a movable plate is hingedly installed on the bottom plate; a cutter is slidably arranged on the movable plate in a positionable manner, and the cutting edge of the cutter faces one side of the bottom plate; an extension arm is installed on the movable plate and extends towards the boom direction; a movable pressing part is arranged on the boom and is drivingly connected to the extension arm; a connecting part, one end of which is connected to the movable pressing part and the other end is connected to the movable frame; the movable frame moves up and down, and then uses the movable pressing part to drive the extension arm to swing the movable plate, so that the cutter intermittently presses on the bottom plate.

[0013] As a further improvement of the solution, the movable pressing part includes: a fixing plate arranged on the boom; a guiding groove is opened on the fixing plate; a slider, one end of which slides in the guiding groove and the other end is slidably connected to the extension arm. The slider slides along the guiding groove and can thus pry the extension arm; one end of the connecting part is connected to the slider.

[0014] As a further improvement of the solution, a rotating part capable of rotating is provided on the connecting piece and is connected to the slider.

[0015] The present invention brings the following effects: 1. In the present invention, the resistor is transported on the conveyor belt, and the biaxial motor drives the movable frame to move up and down. During the rapid lifting and lowering movement of the movable frame, the side plates can be used to press and bend the resistor pins located below. And the resistor only needs to be linearly transported during this process. As the lifting frequency of the movable frame increases, the transport speed of the resistor can also increase, thereby achieving the effect of rapid bending.

[0016] 2. The accommodating groove can clamp the resistor on the belt body. During the rapid bending process, the resistor will not easily slip off the belt body; at the same time, in cooperation with the middle groove and the through port, the resistor clamped on the belt body will be pushed out by the raised edge on the fixing ring during the process of following the belt transmission, so that the resistor is separated from the belt body.

[0017] 3. After the provided bottom plate, movable plate, cutting knife and extension arm cooperate with each other, and are connected to the movable frame through the movable pressing part, each time the movable frame moves downward, the cutting knife can be made to abut against the bottom plate, so that the resistor pins perpendicular to the bending are cut off, and the cutting knife with adjustable sliding position can control the length of the cut pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the prior art.

[0019] Figure 2 It is a complete schematic diagram of the present invention.

[0020] Figure 3 For the present invention Figure 2 A schematic diagram with the upper guide plate and the bottom plate hidden.

[0021] Figure 4 It is a schematic diagram of the biaxial motor, eccentric wheel, pull rod, movable frame and receiving plate of the present invention.

[0022] Figure 5 It is a schematic diagram of the movable frame and the side plates of the present invention.

[0023] Figure 6 It is a schematic diagram of the middle groove and the through port of the present invention.

[0024] Figure 7 It is a schematic diagram of the specific position where the raised edge of the present invention is located.

[0025] Figure 8 It is a schematic diagram of the upper guide plate, lower guide plate and sinking part of the present invention.

[0026] Figure 9It is a schematic diagram of the specific position of the installation chamber of the present invention.

[0027] Figure 10 It is a top view schematic diagram of the second hydraulic push rod, the folding connecting rod and the guide block of the present invention.

[0028] Figure 11 It is a schematic diagram of the specific positions of the connecting member and the rotating part of the present invention.

[0029] Figure 12 For the present invention Figure 11 Schematic diagram from another perspective.

[0030] The corresponding relationship between the reference numerals and the names of the components in the accompanying drawings is as follows: 501-support rack, 502-feeding device, 503-placing slot, 504-support slot, 505-resistance, 506-lifting arm, 507-telescopic gas rod, 508-pressing plate, 11-support frame, 12-lifting arm, 13-conveyor belt, 14-double-axis motor, 15-eccentric wheel, 16-pull rod, 17-movable frame, 171-side plate, 18-support plate, 131-belt body, 132-accommodating slot, 133-notch, 134-driving wheel, 21 -middle groove, 22-through opening, 23-fixing ring, 24-raised edge, 30-installation chamber, 31-first hydraulic push rod, 32-elastic reset button, 33-second hydraulic push rod, 34-folding connecting rod, 35-guide block, 41-upper guide plate, 42-lower guide plate, 43-sinking part, 51-bottom plate, 52-movable plate, 53-cutter, 54-extension arm, 55-fixed plate, 56-guide groove, 57-slider, 58-connecting piece, 581-rotating part. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] The present invention specifically discloses a high-speed bending device for diode pins. As Figures 2 - 12 shown, it includes: a support frame 11, suspension arms 12 are symmetrically installed on the upper part of the support frame 11, a conveyor belt 13 is fixedly installed on the support frame 11 directly below the suspension arms 12, a dual-axis motor 14 is installed in the middle between the two suspension arms 12, an eccentric wheel 15 is rotatably installed on the suspension arm 12, and the rotating shaft of the dual-axis motor 14 is connected to the eccentric wheel 15 to drive the eccentric wheel 15 to rotate; referring to Figure 4 and Figure 5 shown, a movable frame 17 is slidably installed on the suspension arm 12. The movable frame 17 is directly above the conveyor belt 13 and can slide up and down on the suspension arm 12. Side plates 171 extending downward are provided on both sides of the movable frame 17. One end of a pull rod 16 is connected to the eccentric wheel 15, and the other end of the pull rod 16 is connected to the movable frame 17. Therefore, when the eccentric wheel 15 rotates, the movable frame 17 is pulled by the pull rod 16 to perform reciprocating movement in the up and down directions; during use, after the resistor 505 is conveyed to directly below the movable frame 17 by the conveyor belt 13, the driving of the conveyor belt 13 is paused, and the dual-axis motor 14 drives the movable frame 17 to slide downward, so that the side plates 171 will press down on the pins of the resistor 505. When the side plates 171 are pressed down to the limit position, the pins will be bent. After the movable frame 17 is pulled up, the conveyor belt 13 continues to drive, conveying the bent resistor 505 away, and the unbent resistor 505 is moved to directly below the movable frame 17. With such intermittent alternating cooperation, as the working frequency of the alternating cooperation between the movable frame 17 and the conveyor belt 13 increases, the bending speed will also become faster and faster; where referring to Figure 4 shown, receiving plates 18 are installed on the side walls on both sides of the conveyor belt 13. After the resistor 505 is directly below the movable frame 17, the root positions of the pins on the resistor 505 will also rest on the receiving plates 18. Therefore, when the side plates 171 press down on the pins, the pins will not be bent from the root, but will be bent from the edge position of the receiving plates 18.

[0034] In the present invention, the resistor 505 is transported on the conveyor belt 13. The biaxial motor 14 drives the movable frame 17 to move up and down. During the rapid lifting and lowering movement of the movable frame 17, the side plate 171 can be used to press and bend the pins of the resistor 505 located below. During this process, the resistor 505 only needs to be linearly transported. As the lifting and lowering frequency of the movable frame 17 increases, the conveying speed of the resistor 505 can also be increased, thereby achieving the effect of rapid bending.

[0035] Referring to Figure 6 As shown, the surface of the belt body 131 of the conveyor belt 13 is evenly spaced with receiving grooves 132. The resistor 505 is embedded in the surface of the belt body 131 through the receiving grooves 132. After the resistor 505 is embedded in the surface of the belt body 131, the high-frequency bending action performed on the resistor 505 will not cause the resistor 505 placed on the belt body 131 to become detached, ensuring that the resistor 505 can be stably transported during the bending operation. Correspondingly, the resistor 505 is input from one end of the conveyor belt 13, and an ejection member is provided at the end where the resistor 505 is sent out. The function of the ejection member is to eject the resistor 505 embedded in the surface of the belt body 131, thereby separating the bent resistor 505 from the belt body 131.

[0036] Referring to Figure 6 As shown, a notch 133 is opened in the area between two receiving grooves 132. Due to the function of this notch 133, the two edges of each receiving groove 132 are independent and not connected. That is, the resistor 505 embedded in the receiving groove 132 can be clamped by the respective independent receiving grooves 132. When one of the receiving grooves 132 expands or contracts freely, it will not affect the clamping of the resistor 505 by other receiving grooves 132, thereby enabling each receiving groove 132 to independently apply a clamping force to the resistor 505.

[0037] Referring to Figure 7 As shown, the ejection member includes: a middle groove 21 that is recessed in a full circle on the inner circle of the belt body 131, and the depth of the middle groove 21 is connected to the receiving groove 132, so as to open a through port 22 leading to the middle groove 21 on the receiving groove 132. A fixing ring 23 is provided in the area of the driving wheel 134 on one side of the conveyor belt 13. The fixing ring 23 does not participate in rotation with the driving wheel 134, and a part of the protruding edge 24 is provided on the fixing ring 23. The protruding edge 24 can be embedded in the middle groove 21 and abut against the through port 22.

[0038] Specifically, after the belt body 131 moves with the resistor 505 to the area where the driving wheel 134 is located, the belt body 131 bends and deforms, and at the same time, the receiving groove 132 in this area opens due to the bending of the belt body 131. At this time, the resistor 505 in the receiving groove 132 is no longer clamped. Therefore, after the resistor 505 contacts the raised edge 24 on the fixing ring 23, the raised edge 24 will push the resistor 505 out from the area where the middle groove 21 is connected to the through hole 22, thereby causing the resistor 505 to detach from the belt body 131.

[0039] Reference Figures 8 - 10 As shown, an installation chamber 30 is opened in the middle of the conveyor belt 13, a first hydraulic push rod 31 is installed on the side wall of the conveyor belt 13, an elastic reset button 32 is arranged on the first hydraulic push rod 31, and the elastic reset button 32 is used to make the first hydraulic push rod 31 automatically reset after being pressed, and the second hydraulic push rod 33 is arranged in the installation chamber 30, and two guide blocks 35 are symmetrically arranged in the installation chamber 30, and the receiving plates 18 on both sides are slidably arranged on both sides of the guide blocks 35. The two sliding receiving plates 18 are connected together by folding connecting rods 34 symmetrically arranged in the installation chamber 30. The folding connecting rod 34 is a three-section structure, and the two ends of the folding connecting rod 34 are connected to the receiving plates 18 on both sides, and the two ends of the second hydraulic push rod 33 are respectively connected to the middle parts of the folding connecting rods 34 on both sides. Figure 10 As shown, when the second hydraulic push rod 33 is extended, the folding links 34 on both sides will be straightened, thereby pushing the receiving plate 18 out of the guide plate to move away from each other. When the second hydraulic push rod 33 is contracted, the middle parts of the folding links 34 on both sides will be pulled closer to each other, thereby pulling the receiving plate 18 closer to each other, and the corners of the top edge of the receiving plate 18 are arc chamfered.

[0040] Specifically, the fluid paths of the first hydraulic push rod 31 and the second hydraulic push rod 33 are connected to each other through a pipe, so that after pushing the first hydraulic push rod 31, the second hydraulic push rod 33 is pushed out, and after the movable frame 17 brings the side plate 171 to press the pin of the resistor 505 downward, the pin is bent, and the movable frame 17 also presses the first hydraulic push rod 31 downward, thereby extending the second hydraulic push rod 33, and correspondingly the receiving plate 18 is pushed out. In the process of the receiving plate 18 sliding outward, the pin bending area will continue to migrate outward for a distance following the movement of the receiving plate 18. Thanks to the circular chamfer on the top of the receiving plate 18, the migration of the pin bending area is sliding along the circular chamfer, so it will not be stuck by the right-angled edge, and as the movable frame 17 rises and no longer contacts the first hydraulic push rod 31, the first hydraulic push rod 31 is reset, and then the second hydraulic push rod 33 is reset, and finally the side plate 171 is retracted.

[0041] The resulting effect is that when the pins are bent downward along the edges from the top of the receiving plate 18, the pins bent on both sides will cling to the side walls of the receiving plate 18. When the conveyor belt 13 transports the already bent resistor 505 away from this area, the clinging pins will rub against the receiving plate 18 during movement and deflect, causing the originally vertically downward pins to tilt. This is not conducive to the subsequent step of trimming the pins. By expanding the receiving plate 18, the distance between the bent pins can be increased to avoid frictional contact between the pins and the receiving plate 18.

[0042] Refer to Figure 8 As shown, the upper guide plate 41 is installed at the edge on one side of the boom 12, and the lower guide plate 42 is installed on one side of the conveyor belt 13. The upper guide plate 41 and the lower guide plate 42 are on the same side, and the upper guide plate 41 and the lower guide plate 42 are parallel to each other. The upper guide plate 41 and the lower guide plate 42 are arranged at an angle inclined towards the conveyor belt 13 as a whole, and there is a gap allowing the resistor 505 to pass through between them to guide the resistor 505 to fall on the belt body 131. This gap becomes the feeding channel for the resistor 505 to reach the belt body 131. The upper guide plate 41 is provided with a sunken part 43 close to the belt body 131 to squeeze the resistor 505 into the receiving groove 132 through the sunken part 43.

[0043] Specifically, the resistor 505 slides downward from the feeding channel and will fall on the belt body 131 after sliding to the bottom. As the belt body 131 moves, the resistor 505 will fall into the receiving groove 132. Under the combined action of the sunken part 43 and the moving belt body 131, the sunken part 43 presses against the resistor 505 to make the resistor 505 embed into the receiving groove 132. As the belt body 131 moves, the resistors 505 are one by one snapped into the receiving grooves 132 of the belt body 131 from the feeding channel.

[0044] Refer to Figure 8 、 Figure 11 and Figure 12As shown in the figure, it further includes: a bottom plate 51 fixedly installed on the side walls on both sides of the conveyor belt 13. The position of the bottom plate 51 relative to the conveyor belt 13 is on the side away from the upper guide plate 41. An activity plate 52 is hinged on the bottom plate 51. A cutting knife 53 is slidably arranged on the activity plate 52 and slides to a specified position and remains fixed as required. The cutting edge of the cutting knife 53 faces one side of the bottom plate 51. The pins of the resistor 505 are bent and then vertically downward. After being conveyed by the conveyor belt 13, the vertically downward pins will be located between the bottom plate 51 and the cutting knife 53. At this time, only by pressing the activity plate 52, the cutting knife 53 can cut off the pins. By adjusting the position of the cutting knife 53, the lengths of the cut pins will be different, so it can be adjusted as required. In order to better cooperate with the lifting action of the activity frame 17 to cut off the pins, an extension arm 54 is fixedly installed on the activity plate 52. The extension arm 54 extends towards the lifting arm 12. An activity pressing member is arranged between the end part of the extension arm 54 and the lifting arm 12. One end of the connecting member 58 is connected to the activity pressing member, and the other end is connected to the activity frame 17. As the activity frame 17 moves downward, the activity pressing member pulls the extension arm 54 closer to the lifting arm 12, so that the cutting knife 53 can press on the bottom plate 51 to cut off the pins. When the activity frame 17 moves upward, the activity pressing member pushes the extension arm 54 away from the lifting arm 12, so that the cutting knife 53 and the bottom plate 51 are separated, allowing the pins to enter between the cutting knife 53 and the bottom plate 51.

[0045] Referring to Figure 11 and Figure 12 As shown in the figure, the activity pressing member includes: a fixing plate 55 fixedly installed on the lifting arm 12. An inclined guiding groove 56 is formed on the fixing plate 55. One end of a slider 57 slides in the guiding groove 56, and the other end is slidably connected to the extension arm 54. When the slider 57 slides downward along the guiding groove 56, it will pull the extension arm 54 closer to the lifting arm 12, so that the cutting knife 53 presses on the bottom plate 51. When the slider 57 slides upward along the guiding groove 56, the slider 57 pushes the extension arm 54 away from the lifting arm 12. One end of the connecting member 58 is connected to the slider 57, so that the slider 57 is pulled to move up and down by the connecting member 58 during the up and down movement of the activity frame 17. Among them, the slider 57 is slidably connected to the extension arm 54. When the extension arm 54 moves away from or closer to the lifting arm 12, the angle of the slider 57 is different. Therefore, in order to avoid jamming during the up and down movement when the connecting member 58 is connected to the activity frame 17, a rotating part 581 with a rotatable part is required on the connecting frame to be connected to the slider 57. In this way, during the process of the connecting member 58 pulling the slider 57 to move up and down, the rotating part 581 can deflect adaptively while still maintaining the connection with the activity frame 17.

[0046] After the provided bottom plate 51, movable plate 52, cutting knife 53 and extension arm 54 cooperate with each other and are connected to the movable frame 17 through the movable pressing member, each time during the downward movement of the movable frame 17, the cutting knife 53 can be made to abut against the bottom plate 51, so that the vertically bent pins of the resistor 505 are cut off, and the cutting knife 53 with a slidable and adjustable position can control the length of the cut pins.

[0047] The above-described embodiments only represent the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, improvements and substitutions can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A high-speed bending device for diode pins, comprising: Support frame (11); boom (12), symmetrically installed on both sides of the upper part of the support frame (11); conveyor belt (13), symmetrically installed on both sides of the lower part of the support frame (11) and directly below the boom (12); characterized in that it further comprises: a dual-axis motor (14), centrally installed between the two booms (12); an eccentric wheel (15), rotatably installed on the boom (12) and driven to rotate by the dual-axis motor (14); a movable frame (17), slidably installed on the boom (12), the movable frame (17) slides up and down above the conveyor belt (13), and both sides of the movable frame (17) are provided with downwardly extending side plates (171); a pull rod (16), the two ends of which are respectively connected to the eccentric wheel (15) and the movable frame (17), and the movable frame (17) moves up and down as the eccentric wheel (15) rotates; receiving plates (18), symmetrically installed on both sides of the conveyor belt (13); the resistor (505) is conveyed through the conveyor belt (13) and passes under the movable frame (17). After the pins of the resistor (505) are placed on the receiving plates (18), the movable frame (17) moves downwards and drives the side plates (171) to press down and bend the pins of the resistor (505).

2. The high-speed bending device for diode pins according to claim 1, wherein It further comprises: Receiving grooves (132), evenly spaced and opened on the surface of the belt body (131) of the conveyor belt (13), and the resistor (505) is embedded on the surface of the belt body (131) through the receiving grooves (132); an ejecting member, arranged at the sending end of the conveyor belt (13) for ejecting the resistor (505) embedded on the surface of the belt body (131).

3. The high-speed bending device for diode pins according to claim 2, wherein It further comprises: Notches (133), opened on the belt body (131) between the receiving grooves (132), so that the two end faces of the receiving grooves (132) can apply a free clamping force to the resistor (505).

4. The high-speed bending device for diode pins according to claim 3, wherein The ejecting member includes: an intermediate groove (21), opened in a full circle around the inner circle of the belt body (131), and the depth of the intermediate groove (21) is connected to the receiving groove (132), so that a through port (22) leading to the intermediate groove (21) is opened on the receiving groove (132); a fixing ring (23), fixed in the area of the driving wheel (134) on one side of the conveyor belt (13), and the fixing ring (23) does not participate in rotation together with the driving wheel (134); a raised edge (24), arranged on the fixing ring (23), and the raised edge (24) can be embedded in the intermediate groove (21) and abuts against the through port (22).

5. The high-speed bending device for diode pins according to claim 4, wherein It further comprises: A mounting chamber (30) is formed in the middle of the conveyor belt (13); a first hydraulic push rod (31) is mounted on the side wall of the conveyor belt (13); an elastic reset key (32) is arranged on the first hydraulic push rod (31) for keeping the first hydraulic push rod (31) capable of resetting after being pressed; a second hydraulic push rod (33) is arranged in the mounting chamber (30); a guide block (35) is arranged in the mounting chamber (30), and the receiving plate (18) is slidably arranged on the guide block (35); there are two groups of folding link rods (34) which are respectively located on both sides of the mounting chamber (30), and both ends are respectively connected to the receiving plates (18) on both sides, and both ends of the second hydraulic push rod (33) are respectively connected to the folding link rods (34) on both sides; the liquid paths of the first hydraulic push rod (31) and the second hydraulic push rod (33) are communicated with each other through pipes, and after the first hydraulic push rod (31) is pushed, the second hydraulic push rod (33) is pushed out, and the telescopic movement of the second hydraulic push rod (33) drives the folding link rods (34) to fold and pull the receiving plate (18) to slide on the guide block (35), so that the two receiving plates (18) approach or move away from each other.

6. The high-speed bending device for diode pins according to claim 5, wherein The edges of the top of the receiving plate (18) are chamfered into arcs.

7. The high-speed bending device for diode pins according to claim 6, wherein It further includes: An upper guide plate (41) is mounted on the edge of one side of the boom (12); A lower guide plate (42) is mounted on one side of the conveyor belt (13) on the same side as the upper guide plate (41). The upper guide plate (41) and the lower guide plate (42) are parallel to each other, and there is a gap allowing the resistor (505) to pass through between them to guide the resistor (505) to fall on the belt body (131). A sinking part (43) close to the belt body (131) is arranged on the upper guide plate (41) to squeeze the resistor (505) into the receiving groove (132) through the sinking part (43).

8. The high-speed bending device for diode pins according to claim 7, wherein It further includes: A bottom plate (51) is mounted on the side walls on both sides of the conveyor belt (13), on the side away from the upper guide plate (41); a movable plate (52) is hingedly mounted on the bottom plate (51); A cutter (53) is slidably arranged on the movable plate (52) in a positionable manner, and the cutting edge of the cutter (53) faces the side of the bottom plate (51); an extension arm (54) is mounted on the movable plate (52) and extends towards the boom (12); a movable pressing member is arranged on the boom (12) and is drivingly connected to the extension arm (54); a connecting member (58) has one end connected to the movable pressing member and the other end connected to the movable frame (17); the movable frame (17) moves up and down, and then drives the extension arm (54) by using the movable pressing member to swing the movable plate (52), so that the cutter (53) intermittently presses on the bottom plate (51).

9. The high-speed bending device for diode pins according to claim 8, wherein The movable pressing member includes: a fixed plate (55) provided on the boom (12); a guiding groove (56) formed on the fixed plate (55); a slider (57) with one end sliding in the guiding groove (56) and the other end slidably connected to the extension arm (54), and the slider (57) slides along the guiding groove (56) to be able to pry the extension arm (54); one end of the connecting member (58) is connected to the slider (57).

10. The high-speed bending device for diode pins according to claim 9, wherein A rotating part (581) capable of rotating is provided on the connecting member (58) and is connected to the slider (57).

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