PIN bending device

Abstract

The invention discloses a PIN bending device, and particularly relates to the technical field of PIN bending. According to the PIN bending device, a shell base of a PIN is pushed by a pushing and blocking assembly to enter a bearing frame, meanwhile, the end of the next PIN is blocked and limited, a pin of the PIN enters the interior of a correcting and overturning unit, the pin of the PIN is corrected, and the PIN is bent. Pins of the pins are made to be located on the same horizontal line, the bending quality of PIN products is improved, the pins of the PINs enter the penetrating holes through the external expansion grooves, the pins with deviation are smoothly guided to the positions of the penetrating holes, and the positions of the pins are corrected; the limiting plate is located at one end of the second linear sliding table, the pins of the PINs are bent after being corrected, then the limiting plate slides upwards on the second linear sliding table, the limiting plate leaves the bent pins of the PINs, the PINs are continuously pushed by the pushing blocking assembly to leave the interior of the bearing frame, and due to the fact that the limiting plate moves upwards, interference on pushing of the PINs is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of PIN pin bending, in particular to a PIN pin bending device. Background Art

[0002] In the manufacture of electronic devices and connectors, PIN bending (i.e. pin bending) is an important process, especially in the production of connectors, integrated circuit (IC) packages, sensors, or other components that require electrical connections. The bending process usually bends metal pins or pins into a specific shape according to design requirements to meet different assembly and contact requirements. Pins are usually made of metal materials such as copper, nickel, and titanium alloys. These materials have good conductivity and plasticity. Pin bending technology is widely used in many fields, especially in the electronics and electrical industries.

[0003] After searching, the utility model patent with publication number CN220497598U discloses a PIN needle bending device, which can realize batch positioning of PIN needles through the cooperation of the positioning platform, side plate, push plate, second screw rod, second hand wheel, triangular frame, push rod, through hole, strip hole, positioning plate and extension groove.

[0004] In the existing solutions, the pins of the PIN needles are usually bent directly. The defect of direct bending is that there is a certain deviation after bending, which affects the consistency of the overall product. This influence causes the plug-in direction of the component or the docking with the circuit board hole position. Multiple pins have deviations, which may cause the component to be unable to be accurately inserted or have poor contact during assembly. Summary of the invention

[0005] The object of the present invention is to provide a PIN pin bending device to solve the problems mentioned in the above background technology.

[0006] The technical problems mainly solved by the present invention are: In the existing solution, the pins of the PIN needles are bent directly, and there is a certain deviation after bending, which affects the consistency of the overall product.

[0007] The present invention can be achieved through the following technical solutions: A PIN needle bending device comprises a base, wherein a conveyor belt 1 for conveying PIN needles is provided at one end of the base, and a conveyor belt 2 for outputting the bent PIN needles is provided at the other end of the base, a bearing frame for limiting the PIN needles is provided at the end of the base near the conveyor belt 1, the PIN needle housing seat is adapted to the inside of the bearing frame, a correction flip unit for bending the PIN needle pins is provided on one side of the bearing frame, a support frame is provided at the upper part of the base just above the conveyor belt 1, and a push material blocking component for loading the PIN needles is provided inside the support frame; The correction flip unit includes a linear slide 2 that is rotatably arranged with the inner wall surface of the base, a slide seat is slidably arranged outside the linear slide 2, a limiting plate is connected to the end surface of the slide seat, and a plurality of positioning parts for correcting the PIN pins are arranged inside the limiting plate; The positioning portion comprises a through hole, one side of the through hole is connected to an outward expansion groove, and the through hole, the outward expansion groove and the bearing frame are all consistent with the center of the PIN pin.

[0008] A further technical improvement of the present invention is that: a convex portion 1 is provided on one side of the exterior of the carrying frame, and a convex portion 2 is provided on the exterior of the carrying frame away from the convex portion 1, an outer edge of the convex portion 1 is slidably provided with an automatically reset push portion 1, and an outer edge of the convex portion 2 is slidably provided with an automatically reset push portion 2; One side of the end surface of the push part 1 and the push part 2 is provided with a contact part which abuts against the PIN needle housing seat.

[0009] A further technical improvement of the present invention is that: a slider is slidably provided in the slide groove in the convex part one, one side of the slider is fixed to the push part one, and the end surface of the slider is provided with a spring one connected to the slide groove in the convex part one; A sliding block 2 is slidably arranged in the sliding groove in the second protrusion, one side of the sliding block 2 is fixed to the second pushing portion, and the end surface of the sliding block 2 is provided with a spring 2 connected to the sliding groove in the second protrusion.

[0010] A further technical improvement of the present invention is that the correction flipping unit also includes a limiting rod arranged outside the second linear slide, the inner wall surface of the base is provided with an arc-shaped groove, the arc-shaped groove and the limiting rod are slidably arranged, and the outside of the base is provided with a driving unit for driving the two ends of the linear slide to rotate.

[0011] A further technical improvement of the present invention is that the material pushing and blocking assembly includes a material blocking unit and a material pushing unit connected to the material blocking unit, the material blocking unit includes a reciprocating cylinder arranged on the top surface of the inner part of the support frame, the pushing end of the reciprocating cylinder is connected to a push plate, and the lower end surface of the push plate does not contact the conveyor belt.

[0012] A further technical improvement of the present invention is that the pushing unit includes a fixed frame fixed inside the support frame and adjacent to one side of the reciprocating cylinder, a movable part sliding in the vertical direction is provided inside the fixed frame, a limiting part is provided on the top of the movable part, and a connecting piece is provided on one side of the bottom of the movable part, and the connecting piece is fixed to the outside of the pushing end of the reciprocating cylinder.

[0013] A further technical improvement of the present invention is that a linear slide is provided on the bottom surface of the movable part, and a sliding member that slides in multiple stages in the horizontal direction is provided on the outside of the linear slide, and a pushing member for pushing the PIN needle to load and discharge is provided below the sliding member.

[0014] A further technical improvement of the present invention is that: the two inner wall surfaces of the base are provided with limit plates near the edges of the corresponding side conveyor belts, and a pushing unit is installed on the outer wall surface of the limit plate and the middle part of the base, and telescopic parts are provided on both sides of the pushing unit.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the shell seat of the PIN pin is pushed by the material pushing and blocking assembly to make it enter the bearing frame, and at the same time, the end of the next PIN pin is blocked and limited, and the pin of the PIN pin enters the interior of the correction and flipping unit, and the pin of the PIN pin is corrected to make it on the same horizontal line, thereby improving the bending quality of the PIN pin product, and the PIN pin enters the interior of the perforation through the external expansion groove, and the offset pin is smoothly guided to the position of the perforation, and its position is corrected to avoid bending and offset of the pin, thereby reducing the error; when bending, the limiting plate is located at one end of the second linear slide, and after the correction of the PIN pin pin, the second linear slide is flipped 90 degrees clockwise, and then the pin of the PIN pin is bent, and then the limiting plate slides upward on the second linear slide, and the limiting plate leaves the bent pin of the PIN pin until it reaches the top of the PIN pin, and the material pushing and blocking assembly continues to push the PIN pin out of the interior of the bearing frame, and because the limiting plate moves up, interference with the push of the PIN pin is avoided; 2. By respectively providing a push part 1 and a push part 2 on both sides of the carrying frame, in the process of pushing the material by the pushing material blocking assembly, the PIN needle shell seat first contacts the contact part in the push part 2, so that the slider 2 connected to the push part 2 slides in the slide groove in the convex part 2 and compresses the spring 2. At this time, the PIN needle shell seat smoothly passes through the push part 2 and enters the interior of the carrying frame until it stops after contacting the two push parts 1. In this state, the PIN needle shell seat is limited by the push part 2, and the pin of the PIN needle enters the limiting plate; after bending, the limiting plate moves up to a preset height, and the PIN needle shell seat is pushed to continue to move forward, and the PIN needle base pushes the contact part in the push part 1. At this time, the slider 1 connected to the push part 1 slides in the slide groove in the convex part 1 and compresses the spring 1. At this time, the PIN needle shell seat enters the opened push part 1, and the push part 2 is disengaged from the PIN needle shell seat under the external force and returns to the closed state, and the pushing material blocking assembly enters the carrying frame from the side located at the push part 2, which is convenient for the PIN needle to leave the bending position; 3. The pushing action in the pushing blocking assembly is divided into two times. The first pushing action is to push the PIN needle into the bearing frame to facilitate the bending operation. The second pushing action is to drive the pushing member into the bearing frame through the multi-level sliding of the sliding member in the horizontal direction to push the PIN needle housing seat forward again, and push the PIN needle out of the bearing frame into the second conveyor belt to realize the PIN needle discharging action and improve the degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the carrier frame and the conveyor belt of the present invention; Figure 3 For the present invention Figure 1 A partial enlarged view of the middle A; Figure 4 It is an internal cross-sectional view of the carrying frame and the limiting plate of the present invention; Figure 5 It is a schematic diagram of the top view installation structure of the limiting plate and the base platform of the present invention; Figure 6 This is a schematic diagram of the product after the PIN needle of the present invention is bent.

[0018] In the figure: 1. base; 2. conveyor belt 1; 3. limit plate; 4. bearing frame; 5. support frame; 6. conveyor belt 2; 7. reciprocating cylinder; 8. push plate; 9. fixed frame; 10. movable part; 11. limit part; 12. connecting member; 13. linear slide 1; 14. sliding member; 15. pushing member; 16. limiting plate; 17. perforation; 18. outward expansion groove; 19. linear slide 2; 20. convex part 1; 21. push part 1; 22. slider 1; 23. spring 1; 24. push part 2; 25. slider 2; 26. convex part 2; 27. spring 2; 28. contact part; 29. ​​drive unit; 30. slide seat; 31. limit rod; 32. arc slot. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0020] See also Figure 1-Figure 6As shown, the present invention provides a PIN needle bending device, including a base 1, a conveyor belt 2 for conveying PIN needles is provided at one end of the base 1, and a conveyor belt 6 for outputting the PIN needles after bending is provided at the other end of the base 1, a bearing frame 4 for limiting the PIN needles is provided at the end of the base 1 near the conveyor belt 2, the PIN needle shell seat is adapted to the inside of the bearing frame 4, and a correction flip unit for bending the PIN needle pins is provided on one side of the bearing frame 4, and a support frame 5 is provided at the upper part of the base 1, which is located directly above the conveyor belt 2, and a push material blocking component for loading the PIN needles is provided inside the support frame 5. During the bending operation, the PIN needles are conveyed by the conveyor belt 2, and when the PIN needles enter the bearing frame 4, the shell seat of the PIN needles is pushed by the push material blocking component to make it enter the bearing frame 4, and at the same time, the end of the next PIN needle is blocked and limited to avoid the influence of the next PIN needle during the bending operation of the previous PIN needle, and the pins of the PIN needles enter the inside of the correction flip unit, and the pins of the PIN needles are corrected so that the pins are on the same horizontal line, thereby improving the bending quality of the PIN needle products; It should be noted that the material pushing blocking assembly has two pushing actions. The first pushing action is to push the PIN into the carrier frame 4, and the second pushing action is to push the PIN out of the carrier frame 4 into the conveyor belt 2 6, thereby realizing the material discharging action of the PIN and improving the degree of automation. The correction flip unit includes a linear slide 19 rotatably arranged with the inner wall surface of the base 1, a slide seat 30 is slidably arranged outside the linear slide 19, a limiting plate 16 is connected to the end surface of the slide seat 30, and a plurality of positioning parts for PIN pin correction are arranged inside the limiting plate 16; The positioning portion includes a through hole 17, one side of the through hole 17 is connected to an outward expansion groove 18, and the through hole 17, the outward expansion groove 18 and the carrier frame 4 are all consistent with the center of the PIN pin; When calibrating, refer to Figure 4 As shown, the PIN housing seat enters into the carrier frame 4, and at this time, the PIN pin enters into the inside of the through hole 17 through the external expansion slot 18, and the offset pin is smoothly guided to the position of the through hole 17 to correct its position; During bending, that is, in the initial state, the limiting plate 16 is located at one end of the linear slide 19. After the PIN pin is corrected, the linear slide 19 is turned 90 degrees clockwise to bend the PIN pin, as shown in FIG. Figure 6 As shown, the PIN needle is bent, and then the limiting plate 16 slides upward on the linear slide 19, and the limiting plate 16 leaves the bent pin of the PIN needle until it reaches the top of the PIN needle, and then the push-pull blocking assembly continues to push the PIN needle out of the interior of the carrier frame 4. Since the limiting plate 16 moves upward, interference with the pushing of the PIN needle is avoided.

[0021] See also Figure 4 As shown, a convex portion 20 is provided on one side of the outside of the carrying frame 4, and a convex portion 26 is provided on the side of the outside of the carrying frame 4 away from the convex portion 20, and an automatically reset push portion 21 is slidably provided on the outer edge of the convex portion 20, and an automatically reset push portion 24 is slidably provided on the outer edge of the convex portion 26; One side of the end surface of the push portion 1 21 and the push portion 2 24 is provided with a contact portion 28 that contacts with the PIN housing seat; A slider 22 is slidably provided in the slide groove in the convex part 20, one side of the slider 22 is fixed to the push part 21, and the end surface of the slider 22 is provided with a spring 23 connected to the slide groove in the convex part 20; A second slider 25 is slidably disposed in the slide groove in the second protrusion 26. One side of the second slider 25 is fixed to the second push portion 24. The end surface of the second slider 25 is provided with a second spring 27 connected to the slide groove in the second protrusion 26. In the initial state, the push part 1 21 and the push part 2 24 are both in the closed state, and the spring 1 23 and the spring 2 27 connected thereto are in a free (uncompressed) state. In the process of pushing the material by the push material blocking assembly, the shell seat of the PIN needle contacts the contact part 28 in the push part 24, so that the slider 25 connected to the push part 24 slides in the slide groove in the convex part 26 and compresses the spring 27, while the state of the spring 1 23 remains unchanged. At this time, the PIN needle shell seat smoothly passes through the push part 24 and enters the inside of the bearing frame 4 until it stops after contacting the two push parts 1 21. In this state, the PIN needle shell seat is limited by the push part 24. In this state, the pin of the PIN needle enters into the limiting plate 16, and the PIN needle continues to be bent in the next step; After bending, the limiting plate 16 moves up to a preset height, and the PIN needle housing seat is pushed to continue to move forward, and the PIN needle base pushes the contact portion 28 in the pushing portion 21. At this time, the slider 22 connected to the pushing portion 21 slides in the slide groove in the convex portion 20, compressing the spring 23. At this time, the PIN needle housing seat enters into the opened pushing portion 21, and the pushing portion 24 is pushed to break contact with the PIN needle housing seat, that is, it returns to the closed state, and the material pushing blocking component enters into the supporting frame 4 from the side of the pushing portion 24, which facilitates the PIN needle to leave the bending position.

[0022] See also Figure 5 As shown, the correction flip unit also includes a limiting rod 31 arranged on the outside of the linear slide 19, and the inner wall surface of the base 1 is provided with an arc-shaped groove 32. The arc-shaped groove 32 and the limiting rod 31 are slidably arranged. The outside of the base 1 is provided with a driving unit 29 for driving the end of the linear slide 19 to rotate. The linear slide 19 is driven to rotate by the driving unit 29, thereby realizing the bending action of the PIN pin, wherein the sliding of the limiting rod 31 in the arc-shaped groove 32 ensures the stability of the linear slide 19 during rotation.

[0023] See also Figure 2 and Figure 3 As shown, the material push blocking assembly includes a material blocking unit and a material push unit connected to the material blocking unit, the material blocking unit includes a reciprocating cylinder 7 arranged on the top surface of the inner part of the support frame 5, the pushing end of the reciprocating cylinder 7 is connected to a push plate 8, and the lower end surface of the push plate 8 does not contact the conveyor belt 2; The pushing unit includes a fixed frame 9 fixed inside the support frame 5 and adjacent to one side of the reciprocating cylinder 7. A movable part 10 sliding in the vertical direction is provided inside the fixed frame 9. A limit part 11 is provided on the top of the movable part 10, and a connecting piece 12 is provided on one side of the bottom of the movable part 10. The connecting piece 12 is fixed to the outside of the pushing end of the reciprocating cylinder 7. Through the setting of the connecting piece 12, when the reciprocating cylinder 7 is pushed, the movable part 10 is synchronously driven to load the PIN needle on the edge of the conveyor belt 2 into the bearing frame 4; A linear slide 13 is provided on the bottom surface of the movable part 10, and a sliding member 14 that slides in multiple stages in the horizontal direction is provided on the outside of the linear slide 13, and a pushing member 15 for pushing the PIN needle to load and unload is provided below the sliding member 14; When the PIN needle reaches the edge position through the conveyor belt 2, the reciprocating cylinder 7 pushes the push plate 8 downward and drives the movable part 10 to slide in the fixed frame 9, and the push plate 8 blocks the next PIN needle conveyed. At the same time, the sliding member 14 slides on the linear slide 13 and drives the push member 15 to push the PIN needle housing into the bearing frame 4, which is convenient for the bending of the PIN needle pin; After bending, the sliding member 14 slides in multiple stages in the horizontal direction, driving the pushing member 15 to enter the carrying frame 4 to push the PIN needle housing seat forward again, so that it is discharged and leaves the interior of the carrying frame 4, completing the discharge of the PIN needle after bending.

[0024] See also Figure 1 As shown, the two inner wall surfaces of the base 1 are provided with limit plates 3 near the edges of the corresponding side conveyor belt 2, and the outer wall surface of the limit plate 3 and the middle part of the base 1 are installed with a pushing unit, and telescopic parts are provided on both sides of the pushing unit. Through the movement of the limit plate 3, the conveying position of the PIN needle shell seat is auxiliary guided so that it can smoothly reach one side of the supporting frame 4.

[0025] When the present invention is in use, the shell seat of the PIN pin is pushed by the material pushing and blocking assembly to make it enter the carrier frame 4, and at the same time, the end of the next PIN pin is blocked and limited, and the pin of the PIN pin enters the interior of the correction and flipping unit, and the pin of the PIN pin is corrected to make its pin on the same horizontal line, so as to improve the bending quality of the PIN pin product, and the PIN pin enters the interior of the perforation 17 through the external expansion groove 18, and the offset pin is smoothly guided to the position of the perforation 17 to correct its position; when bending, the limiting plate 16 is located at one end of the linear slide 19, and after the correction of the PIN pin pin, the linear slide 19 is flipped 90 degrees clockwise, and then the pin of the PIN pin is bent, and then the limiting plate 16 slides upward on the linear slide 19, and the limiting plate 16 leaves the bent pin of the PIN pin until it reaches the top of the PIN pin, and the material pushing and blocking assembly continues to push the PIN pin to leave the interior of the carrier frame 4, and the upward movement of the limiting plate 16 avoids interference with the push of the PIN pin; By respectively providing a push portion 1 21 and a push portion 24 on both sides of the carrier frame 4, in the process of pushing the material by the push material blocking assembly, the PIN needle housing seat first contacts the contact portion 28 in the push portion 24, so that the slider 25 connected to the push portion 24 slides in the slide groove in the convex portion 26, compressing the spring 27, and the PIN needle housing seat smoothly passes through the push portion 24 and enters the interior of the carrier frame 4 until it stops after contacting the two push portions 1 21. In this state, the PIN needle housing seat is limited by the push portion 24, and the pin of the PIN needle enters the limiting plate 16 After bending, the limiting plate 16 moves up to the preset height, the PIN needle housing seat is pushed to continue to move forward, and the PIN needle base pushes the contact portion 28 in the pushing portion 21. At this time, the slider 22 connected to the pushing portion 21 slides in the slide groove in the convex portion 20, compressing the spring 23. At this time, the PIN needle housing seat enters into the opened pushing portion 21, and the pushing portion 24 is disengaged from the PIN needle housing seat under the external force, and the closed state is restored. The material pushing blocking component enters into the bearing frame 4 from the side of the pushing portion 24, which facilitates the PIN needle to leave the bending position; The pushing action in the pushing blocking assembly is divided into two times. The first pushing action is to push the PIN needle into the carrying frame 4 to facilitate the bending operation. The second pushing action is to drive the pushing member 15 into the carrying frame 4 through the multi-stage sliding of the sliding member 14 in the horizontal direction to push the PIN needle housing seat forward again, and push the PIN needle out of the carrying frame 4 into the conveyor belt 2 6, thereby realizing the PIN needle discharging action and improving the degree of automation.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A PIN bending device, comprising a base (1), characterized in that: A conveyor belt (2) for conveying PIN needles is provided at one end of the interior of the base (1), and a conveyor belt (6) for outputting PIN needles after bending is provided at the other end of the interior of the base (1); a bearing frame (4) for limiting PIN needles is provided at the end of the conveyor belt (2) near the interior of the base (1); the PIN needle housing seat is adapted to the interior of the bearing frame (4); a correction flip unit for bending the PIN needle pins is provided on one side of the bearing frame (4); a support frame (5) is provided at the upper part of the base (1) directly above the conveyor belt (2); a material pushing and blocking component for loading PIN needles is provided inside the support frame (5); The correction flip unit comprises a second linear slide (19) rotatably arranged with the inner wall surface of the base (1), a slide seat (30) being slidably arranged outside the second linear slide (19), a limiting plate (16) being connected to the end surface of the slide seat (30), and a plurality of positioning parts for correcting the pins of the PIN needles being arranged inside the limiting plate (16); The positioning portion comprises a through hole (17), one side of the through hole (17) is connected to an outward expansion groove (18), and the through hole (17), the outward expansion groove (18) and the bearing frame (4) are all consistent with the center of the PIN pin.

2. A PIN bending device according to claim 1, characterized in that: A convex portion 1 (20) is provided on one side of the outside of the carrying frame (4), and a convex portion 2 (26) is provided on the side of the outside of the carrying frame (4) away from the convex portion 1 (20); an automatically resettable push portion 1 (21) is slidably provided on the outer edge of the convex portion 1 (20), and an automatically resettable push portion 2 (24) is slidably provided on the outer edge of the convex portion 2 (26); One side of the end surface of the push portion 1 (21) and the push portion 2 (24) is provided with a contact portion (28) that abuts against the PIN housing seat.

3. A PIN bending device according to claim 2, characterized in that: A slider (22) is slidably disposed in the slide groove in the protruding portion (20); one side of the slider (22) is fixed to the push portion (21); and a spring (23) connected to the slide groove in the protruding portion (20) is disposed on the end surface of the slider (22); A slide block 2 (25) is slidably arranged in the slide groove in the second protrusion (26), one side of the slide block 2 (25) is fixed to the second push portion (24), and a spring 2 (27) connected to the slide groove in the second protrusion (26) is arranged on the end surface of the slide block 2 (25).

4. A PIN bending device according to claim 1, characterized in that: The correction flip unit also includes a limiting rod (31) arranged outside the second linear slide (19); an inner wall surface of the base (1) is provided with an arc-shaped groove (32); the arc-shaped groove (32) and the limiting rod (31) are slidably arranged; and a driving unit (29) for driving the end of the second linear slide (19) to rotate is provided outside the base (1).

5. A PIN bending device according to claim 1, characterized in that: The material pushing and blocking assembly comprises a material blocking unit and a material pushing unit connected to the material blocking unit, the material blocking unit comprising a reciprocating cylinder (7) arranged on the inner top surface of the support frame (5), the pushing end of the reciprocating cylinder (7) is connected to a push plate (8), and the lower end surface of the push plate (8) does not contact the conveyor belt (2).

6. A PIN bending device according to claim 5, characterized in that: The pusher unit comprises a fixed frame (9) fixed inside the support frame (5) and adjacent to one side of the reciprocating cylinder (7); a movable part (10) sliding in the vertical direction is provided inside the fixed frame (9); a limiting part (11) is provided at the top of the movable part (10); and a connecting member (12) is provided at one side of the bottom of the movable part (10); the connecting member (12) is fixed to the outside of the pushing end of the reciprocating cylinder (7).

7. A PIN bending device according to claim 6, characterized in that: A linear slide (13) is provided on the bottom surface of the movable part (10), a sliding member (14) that slides in multiple stages in the horizontal direction is provided on the outside of the linear slide (13), and a pushing member (15) for pushing the PIN needle to load and discharge is provided below the sliding member (14).

8. A PIN bending device according to claim 1, characterized in that: The two inner wall surfaces of the base (1) are both provided with limit plates (3) near the edges of the corresponding side conveyor belt 1 (2), and a pushing unit is installed between the outer wall surface of the limit plate (3) and the middle part of the base (1), and telescopic parts are provided on both sides of the pushing unit.

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