A needle cutting machine for fish-eye pin needle array

Abstract

The application discloses a needle cutting machine for fish-eye pin rows, which comprises a base, a pressing mechanism, a linkage mechanism, a needle pushing mechanism, a material feeding mechanism and a fish-eye pin row, the base comprises a vertical section and a horizontal section, and the included angle between the vertical section and the horizontal section is a right angle; the pressing mechanism is arranged on the vertical section of the base and is used for cutting the connection between the fish-eye pins; the needle pushing mechanism is arranged on the horizontal section of the base, and the material feeding mechanism is connected with the needle pushing mechanism; through cooperation of the pressing mechanism, the linkage mechanism, the needle pushing mechanism and the material feeding mechanism, the semi-automatic needle cutting work is realized, the problems that the automation cutting needs high investment and long delivery period and cannot meet the requirements of small batches and sample pieces in the experimental stage are solved, the problem that the manual bevelled forceps cannot meet the size requirements of the shoulder part of the fish-eye pin after cutting is solved, and the problem of low manual cutting efficiency is also solved.

Description

Technical Field

[0001] This invention is a needle cutter for use with fish-eye needle inserts. Background Technology

[0002] Printed circuit boards (PCBs), also known as printed circuit boards, are important electronic components. They serve as the support for electronic components and provide the connections between them. Because they are manufactured using electronic printing technology, they are called "printed" circuit boards. Before the advent of PCBs, the interconnection between electronic components relied on direct wire connections to form complete circuits. Now, circuit boards exist primarily as effective experimental tools, while PCBs have become absolutely dominant in the electronics industry. In the early 20th century, to simplify the manufacture of electronic machines, reduce wiring between electronic components, and lower production costs, researchers began to explore methods to replace wiring with printing. Over the next thirty years, engineers continuously proposed adding metal conductors to an insulating substrate for wiring. The most successful achievement was in 1925 when Charles Ducas in the United States successfully printed circuit patterns on an insulating substrate and then electroplated conductors to create wiring.

[0003] Fisheye headers are essential components in printed circuit boards (PCBs). Widely used in PCBs for electronics, electrical appliances, and instruments, their primary function is to act as a bridge, facilitating the transmission of current or signals. Fisheye headers function as a bridge between blocked or isolated circuits.

[0004] However, when the fisheye pins are supplied, they are arranged in strips at equal intervals. When needed, the pins are cut off and inserted into the PCBA board as connectors. When cutting the fisheye pins, there are requirements for the size of their shoulders. Currently, the pin insertion equipment is used to automatically cut the pins and then insert them into the PCBA board, or the fisheye pins are cut manually with diagonal pliers.

[0005] However, automated cutting requires high investment and has a long lead time, which cannot meet the needs of small batches and experimental samples. Manual cutting with diagonal pliers results in uneven shoulder widths, making it impossible to guarantee product quality. The needles are prone to bending during manual cutting, and manual cutting is inefficient, taking an average of 5 seconds to cut one needle. Summary of the Invention:

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a needle cutter for fisheye needle inserts.

[0007] A needle cutting machine for a fisheye needle bar includes a base, a pressing mechanism, a linkage mechanism, a needle pushing mechanism, a feeding mechanism, and a fisheye needle bar. The base includes a vertical section and a horizontal section, one end of the vertical section is connected to one end of the horizontal section, and the angle between the vertical section and the horizontal section is a right angle.

[0008] The fisheye pin array includes multiple fisheye pins, which are connected at equal intervals, with a distance a between them.

[0009] The press mechanism is located on the vertical section of the machine base. The press mechanism is used to cut off the connection between the fisheye needles. The pusher mechanism is located on the horizontal section of the machine base. The pusher mechanism is used to push the fisheye needle row to move. The distance that the fisheye needle row moves each time is a. The feeding mechanism is connected to the pusher mechanism. The feeding mechanism is used to carry the fisheye needle row.

[0010] The working principle of this invention: This invention connects the pressing mechanism and the needle pushing mechanism together through a linkage mechanism. The pressing mechanism can drive the needle pushing mechanism to move through the linkage mechanism, thus realizing semi-automatic needle cutting work.

[0011] To ensure that the shoulder of the cut fisheye needle meets the requirements, the press mechanism includes a pull rod, a gear, a push rod, and a needle cutting tool. The pull rod is fixed in a pull rod seat, and the pull rod seat has a pull rod shaft on its side. The pull rod shaft is embedded in the gear, and the gear and pull rod shaft are interference-fitted. The push rod has a rack structure, and the gear and rack structure mesh with each other. The front end of the push rod has a locking block, and the width of the locking block is greater than the width of the pull rod.

[0012] The cutting tool includes a tool holder and a tool body. The tool holder has a T-shaped through hole at its rear end. The tool body is fixed to the front end face of the tool holder. The tool body includes a cutting edge, which is used for cutting. The width of the cutting edge is a predetermined size.

[0013] In order to enable the press mechanism to drive the needle pusher mechanism to move simultaneously when it moves, thus simplifying the operation, the linkage mechanism includes a first track mechanism, a lever, a first connecting rod, and a second connecting rod.

[0014] The first track mechanism includes a first track, a first slider, and a first base plate. The first base plate is located in the vertical section of the machine base, the first track is located on the first base plate, the first slider is slidably connected to the first track, the right side of the lever has a stepped structure, the lever is fixed above the slider, and the lever is connected to the tool holder.

[0015] A raised platform is provided on the vertical section of the base. The raised platform is located on the side of the first track mechanism. The middle part of the first connecting rod is hinged to the raised platform by bolts. A ball bearing is provided on one end of the first connecting rod. The ball bearing overlaps with the right side of the push block. The other end of the first connecting rod is hinged to one end of the second connecting rod. The other end of the second connecting rod is fixedly connected to the push pin mechanism.

[0016] To ensure the hinge connection between the first connecting rod and the shim, the bolt includes a head and a threaded rod, one end of which is connected to the head. The threaded rod has a threaded section and a smooth section, with the smooth section located above the threaded section. The threaded section is located inside the shim, and the smooth section is located inside the first connecting rod.

[0017] To reduce damage caused by the paddle block colliding with the ball bearing, the corners of the stepped structure are rounded.

[0018] In order to achieve the forward movement of the fisheye needle and keep the forward movement consistent each time, the needle pushing mechanism includes a second track mechanism, a push rod, a push rod bracket and a return spring. The second track mechanism includes a second base plate, a second track and a second slider. The second base plate is located on the horizontal section of the machine base, the second track is located on the second base plate, and the second slider is slidably connected to the second track.

[0019] The upper surface of the push rod bracket is provided with a straight through hole, which extends to the right end face of the push rod bracket. The push rod bracket is fixedly connected to the upper end face of the second slider. One end of the return spring is connected to the left end face of the push rod bracket. The push rod bracket is fixedly connected to the second connecting rod.

[0020] The push rod has a protrusion at its left end. The angle between the left end face and the upper end face of the protrusion is 90°. The interior angle between the right end face and the upper end face of the protrusion is an obtuse angle. The push rod is hinged to the straight through hole of the push rod bracket by a pin. The hinged position of the push rod is located to the left of the center of gravity of the push rod.

[0021] To prevent the push rod from pushing the fisheye pin array backward during reset, and to prevent the fisheye pin array from shifting during movement, the feeding mechanism includes a first feeding platform, a second feeding platform, and a mounting side plate. The right end face of the first feeding platform is provided with a groove, and the upper end face of the first feeding platform is provided with a cutting groove. The shape of the cutting groove is the same as the shape of the blade. The first feeding platform is located on the left side of the push rod bracket, and the bottom surface of the groove on the right end face of the first feeding platform is connected to the other end of the reset spring.

[0022] The mounting side plate is connected to the front end face of the push rod bracket. The second feeding platform is installed on the upper end face of the mounting side plate by bolts. The bottom surface of the second feeding platform is connected to the upper end face of the push rod bracket. The upper surface of the second feeding platform is provided with a through hole, and the protrusion at the front end of the push rod passes through the through hole.

[0023] A pressure cover is provided above the feeding platform. The bottom surface of the pressure cover has a groove. The fisheye pin array passes through the groove between the pressure cover and the feeding mechanism. The pressure cover has a notch. A pressure plate is provided in the notch. The pressure plate is fixed to the mounting side plate by bolts. A spring is provided between the pressure plate and the bolt head. One end of the spring abuts against the bolt head, and the other end of the spring abuts against the upper surface of the pressure plate. The pressure plate presses on the fisheye pin array.

[0024] For ease of material feeding, the end of the second push rod extends out of a straight through hole.

[0025] To prevent the accumulation of cut waste material, which would affect the operation of the needle cutting machine, and to speed up work by eliminating the need to manually remove the cut waste material from the groove of the feeding platform, the feeding platform is also equipped with a discharge pipe. The discharge pipe is used to collect the cut waste material. The discharge pipe includes an outlet and an inlet. The outlet is connected to the inside of the cutting groove. The bottom surface of the discharge pipe is inclined, and one end of the bottom outlet is lower than the bottom inlet.

[0026] Beneficial effects:

[0027] Compared with the prior art, the present invention utilizes the mechanism principle of a press to fix the cutter to the front end of the push rod. By pulling the pull rod, the gear rotates, and the gear meshes with the rack structure on the push rod, thereby driving the push rod to move. The push rod then drives the cutter to move. The cutter on the tool will cut the connection between the fisheye pins on the fisheye pin row, and the width of the blade is a predetermined width to ensure that the width of the waste material cut off each time is consistent. In addition, the pusher mechanism ensures that the distance the fisheye pin row moves each time is consistent, and the distance moved is the same as the interval distance between the fisheye pins, ensuring that the size of the fisheye pin shoulder meets the requirements.

[0028] Simultaneously, the linkage mechanism connects the press mechanism and the pusher mechanism through the first track mechanism, the paddle block, the first connecting rod, and the second connecting rod. The paddle block is fixed on the top of the slider and is connected to the cutter. The movement of the cutter will drive the paddle block to move. The side of the paddle block has a stepped mechanism. During the movement, it will collide with the ball bearing on the first connecting rod and cause the first connecting rod to rotate around the bolt at the hinge. The other end of the first connecting rod is connected to the second connecting rod, which is connected to the pusher mechanism. The second connecting rod drives the pusher mechanism to move, realizing the function of pushing the fisheye needle row while cutting.

[0029] In the pusher mechanism, the second pusher is hinged to the straight through hole of the pusher bracket by a pin, and the hinge is located on the left side of the center of the second pusher. Therefore, the left side of the second pusher will be raised. During operation, the protrusion of the second pusher will be inserted into the gap between the fisheye pins. As the linkage mechanism drives the pusher bracket to move along the second track, the second pusher will also push the fisheye pin row forward. The left end of the pusher bracket is also equipped with a return spring. When the pull rod is reset, the paddle block no longer applies pressure to the first connecting rod, and the return spring will push the pusher bracket to reset.

[0030] The feeding mechanism that supports the fisheye pin array is equipped with a pressure plate, which is fixed to the mounting side plate by bolts. Springs located on the pressure plate and the bolt heads press on the fisheye pin array, applying a certain pressure to the fisheye pins to prevent the second push rod from driving the fisheye pin array backward when resetting. When the second push rod resets, the right end of the protrusion in front of the second push rod collides with the fisheye pin. The right side of the protrusion is a bevel. When they collide, the fisheye pin generates a downward pushing force on the front end of the second push rod. Because the pressure plate applies a certain pressure to the fisheye pin array, friction is generated between the fisheye pin array and the second feeding platform. This friction is greater than the elastic force of the reset spring when it recovers its deformation. Therefore, the fisheye pin array will not move backward with the push rod resetting. On the contrary, the second push rod will rotate counterclockwise around the pin under the reaction force of the fisheye pin and move below the fisheye pin. When the protrusion at the front end of the second push rod moves to the next fisheye pin interval, it will be inserted into the interval, waiting for the next push operation.

[0031] When a certain length of the fisheye pins remains, the needle cutting machine stops working, and the end of the second push rod is pushed upward to disengage the protrusion at the front end of the second push rod from the gap of the fisheye pins. Then, the remaining fisheye pins are pulled out. Due to the structural limitations of the push mechanism and the feeding mechanism, a portion of the fisheye pins will remain in the mechanism. When the last length of the fisheye pins is less than a certain length, the push mechanism cannot push the fisheye pins out of the feeding mechanism, thus wasting some. In order to facilitate the removal of the remaining fisheye pins, the end of the second push rod is extended into a straight through hole to facilitate pushing the push rod to disengage the protrusion from the gap.

[0032] Meanwhile, the unloading platform is also equipped with an unloading pipe, which is connected to the inside of the cutting groove. The waste material cut by the blade will fall into the unloading pipe through the cutting groove. The unloading pipe is inclined downwards, and the waste material will be discharged from the unloading mechanism along the unloading pipe, which is convenient for waste material recycling.

[0033] This invention achieves semi-automatic needle cutting by coordinating a press mechanism, a linkage mechanism, a needle pushing mechanism, and a feeding mechanism. It solves the problems of high investment, long delivery time, and inability to meet the needs of small batches and experimental samples in automated cutting. It also solves the problem that manual diagonal pliers cannot meet the shoulder size requirements of the cut fisheye needles, and solves the problem of low efficiency in manual cutting. Attached Figure Description

[0034] Figure 1 This is an assembly diagram of a needle cutter used for fisheye needle arrays;

[0035] Figure 2 This is a partial schematic diagram of the needle-pushing mechanism;

[0036] Figure 3 It is a sectional view of the assembly of the feeding mechanism and the pusher mechanism;

[0037] In the diagram, 1. base, 2. pull rod, 3. first base plate, 4. lever, 5. first push rod, 6. cutting needle, 7. ball bearing, 8. raised platform, 9. first connecting rod, 10. second connecting rod, 11. fish-eye needle bar, 12. second base plate, 13. pressure plate, 14. pressure cover, 15. mounting side plate, 16. first unloading platform, 17. push rod bracket, 18. second push rod, 19. second unloading platform, 20. unloading pipe. Detailed Implementation

[0038] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0039] like Figure 1-3 As shown, the components are: base 1, pull rod 2, first base plate 3, pry block 4, first push rod 5, cutting needle blade 6, ball bearing 7, raised platform 8, first connecting rod 9, second connecting rod 10, fish-eye needle array 11, second base plate 12, pressure plate 13, pressure cover 14, mounting side plate 15, first feeding platform 16, push rod bracket 17, second push rod 18, second feeding platform 19, and unloading pipe 20.

[0040] A needle cutting machine for a fisheye needle bar includes a base, a pressing mechanism, a linkage mechanism, a needle pushing mechanism, a feeding mechanism, and a fisheye needle bar. The base includes a vertical section and a horizontal section, one end of the vertical section is connected to one end of the horizontal section, and the angle between the vertical section and the horizontal section is a right angle.

[0041] The fisheye pin array includes multiple fisheye pins, which are connected at equal intervals, with a distance a between them.

[0042] The press mechanism is located on the vertical section of the machine base. The press mechanism is used to cut off the connection between the fisheye needles. The pusher mechanism is located on the horizontal section of the machine base. The pusher mechanism is used to push the fisheye needle row to move. The distance that the fisheye needle row moves each time is a. The feeding mechanism is connected to the pusher mechanism. The feeding mechanism is used to carry the fisheye needle row.

[0043] In this embodiment, the press mechanism includes a pull rod, a gear, a first push rod, and a cutting needle. The pull rod is fixed in a pull rod seat, and a pull rod shaft is provided on the side of the pull rod seat. The pull rod shaft is embedded in the gear, and the gear and pull rod shaft are interference-fitted. The first push rod is provided with a rack structure, and the gear and rack structure mesh with each other. The front end of the first push rod is provided with a locking block, and the width of the locking block is greater than the width of the pull rod.

[0044] The cutting tool includes a tool holder and a tool body. The tool holder has a T-shaped through hole at its rear end. The tool body is fixed to the front end face of the tool holder. The tool body includes a cutting edge, which is used for cutting. The width of the cutting edge is a predetermined size.

[0045] In this embodiment, the linkage mechanism includes a first track mechanism, a lever, a first connecting rod, and a second connecting rod;

[0046] The first track mechanism includes a first track, a first slider, and a first base plate. The first base plate is located in the vertical section of the machine base, the first track is located on the first base plate, the first slider is slidably connected to the first track, the right side of the lever has a stepped structure, the lever is fixed above the slider, and the lever is connected to the tool holder.

[0047] A raised platform is provided on the vertical section of the base. The raised platform is located on the side of the first track mechanism. The middle part of the first connecting rod is hinged to the raised platform by bolts. A ball bearing is provided on one end of the first connecting rod. The ball bearing overlaps with the right side of the push block. The other end of the first connecting rod is hinged to one end of the second connecting rod. The other end of the second connecting rod is fixedly connected to the push pin mechanism.

[0048] In this embodiment, the bolt includes a head and a screw, one end of which is connected to the head. The screw has a threaded section and a smooth section, with the smooth section located above the threaded section. The threaded section is located inside the raised platform, and the smooth section is located inside the first connecting rod.

[0049] In this embodiment, the corners of the stepped structure are rounded.

[0050] In this embodiment, the pusher mechanism includes a second track mechanism, a second push rod, a push rod bracket, and a return spring. The second track mechanism includes a second base plate, a second track, and a second slider. The second base plate is located on the horizontal section of the machine base, the second track is located on the second base plate, and the second slider is slidably connected to the second track.

[0051] The upper surface of the push rod bracket is provided with a straight through hole, which extends to the right end face of the push rod bracket. The push rod bracket is fixedly connected to the upper end face of the second slider. One end of the return spring is connected to the left end face of the push rod bracket. The push rod bracket is fixedly connected to the second connecting rod.

[0052] The second push rod has a protrusion at its left end. The angle between the left end face and the upper end face of the protrusion is 90°, and the interior angle between the right end face and the upper end face of the protrusion is an obtuse angle. The second push rod is hinged to the straight through hole of the push rod bracket by a pin. The hinged position of the second push rod is located to the left of the center of gravity of the push rod.

[0053] In this embodiment, the end of the second push rod extends out of the straight through hole.

[0054] In this embodiment, the feeding mechanism includes a first feeding platform, a second feeding platform, and a mounting side plate. A groove is provided on the right end face of the first feeding platform, and a cutting groove is provided on the upper end face of the first feeding platform. The shape of the cutting groove is the same as the shape of the blade. The first feeding platform is located on the left side of the push rod bracket, and the bottom surface of the groove on the right end face of the first feeding platform is connected to the other end of the return spring.

[0055] The mounting side plate is connected to the front end face of the push rod bracket. The second feeding platform is installed on the upper end face of the mounting side plate by bolts. The bottom surface of the second feeding platform is connected to the upper end face of the push rod bracket. The upper surface of the second feeding platform is provided with a through hole, and the protrusion at the front end of the push rod passes through the through hole.

[0056] A pressure cover is provided above the feeding platform. The bottom surface of the pressure cover has a groove. The fisheye pin array passes through the groove between the pressure cover and the feeding mechanism. The pressure cover has a notch. A pressure plate is provided in the notch. The pressure plate is fixed to the mounting side plate by bolts. A spring is provided between the pressure plate and the bolt head. One end of the spring abuts against the bolt head, and the other end of the spring abuts against the upper surface of the pressure plate. The pressure plate presses on the fisheye pin array.

[0057] In this embodiment, the feeding platform is also provided with a discharge pipe, which is used to recover the waste material from cutting. The discharge pipe includes an outlet and an inlet. The outlet is connected to the inside of the cutting groove. The bottom surface of the discharge pipe is inclined, and one end of the outlet on the bottom surface is lower than one end of the inlet on the bottom surface.

[0058] Instructions for use: Pull the lever to rotate the gear, which meshes with the rack and pinion mechanism on the push rod, thus moving the push rod. The push rod then moves the blade, which cuts the connection between the fisheye pins on the prop. The blade width is predetermined to ensure that the width of the scrap cut off is consistent each time. In addition, the push rod mechanism ensures that the distance the fisheye pins move each time is consistent, and the distance moved is the same as the interval between the fisheye pins, ensuring that the size of the fisheye pin shoulder meets the requirements.

[0059] Simultaneously, the linkage mechanism connects the press mechanism and the pusher mechanism through the first track mechanism, the paddle block, the first connecting rod, and the second connecting rod. The paddle block is fixed on the top of the slider and is connected to the cutter. The movement of the cutter will drive the paddle block to move. The side of the paddle block has a stepped mechanism. During the movement, it will collide with the ball bearing on the first connecting rod and cause the first connecting rod to rotate around the bolt at the hinge. The other end of the first connecting rod is connected to the second connecting rod, which is connected to the pusher mechanism. The second connecting rod drives the pusher mechanism to move, realizing the function of pushing the fisheye needle row while cutting.

[0060] In the pusher mechanism, the second pusher is hinged to the straight through hole of the pusher bracket by a pin, and the hinge is located on the left side of the center of the second pusher. Therefore, the left side of the second pusher will be raised. During operation, the protrusion of the second pusher will be inserted into the gap between the fisheye pins. As the linkage mechanism drives the pusher bracket to move along the second track, the second pusher will also push the fisheye pin row forward. The left end of the pusher bracket is also equipped with a return spring. When the pull rod is reset, the paddle block no longer applies pressure to the first connecting rod, and the return spring will push the pusher bracket to reset.

[0061] The feeding mechanism that supports the fisheye pin array is equipped with a pressure plate, which is fixed to the mounting side plate by bolts. Springs located on the pressure plate and the bolt heads press on the fisheye pin array, applying a certain pressure to the fisheye pins to prevent the second push rod from driving the fisheye pin array backward when resetting. When the second push rod resets, the right end of the protrusion in front of the second push rod collides with the fisheye pin. The right side of the protrusion is a bevel. When they collide, the fisheye pin generates a downward pushing force on the front end of the second push rod. Because the pressure plate applies a certain pressure to the fisheye pin array, friction is generated between the fisheye pin array and the second feeding platform. This friction is greater than the elastic force of the reset spring when it recovers its deformation. Therefore, the fisheye pin array will not move backward with the push rod resetting. On the contrary, the second push rod will rotate counterclockwise around the pin under the reaction force of the fisheye pin and move below the fisheye pin. When the protrusion at the front end of the second push rod moves to the next fisheye pin interval, it will be inserted into the interval, waiting for the next push operation.

[0062] The cut waste material will fall into the unloading pipe through the cutting groove and slide out of the unloading mechanism along the unloading pipe; when a certain length of the fisheye needle row remains, the needle cutting machine stops working, the end of the second push rod is pushed upward, so that the protrusion at the front end of the second push rod is disengaged from the interval of the fisheye needle, and then the remaining fisheye needle row is pulled out.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A needle cutter for fisheye needle arrays, comprising a main body, characterized in that, The main body includes a base, a press mechanism, a linkage mechanism, a pusher mechanism, a feeding mechanism, and a fish-eye needle bar. The base includes a vertical section and a horizontal section, one end of the vertical section is connected to one end of the horizontal section, and the angle between the vertical section and the horizontal section is a right angle. The fisheye pin array includes multiple fisheye pins, which are connected at equal intervals, with a spacing of a between them. The press mechanism is located on the vertical section of the base and is used to cut off the connection between the fisheye pins. The pusher mechanism is located on the horizontal section of the base and is used to push the fisheye pin row to move. The distance that the fisheye pin row moves each time is a. The feeding mechanism is connected to the pusher mechanism and is used to carry the fisheye pin row. The press mechanism includes a pull rod, a gear, a first push rod, and a cutting needle. The pull rod is fixed in a pull rod seat, and a pull rod shaft is provided on the side of the pull rod seat. The pull rod shaft is embedded in the gear, and the gear and the pull rod shaft are interference-fitted. The first push rod is provided with a rack structure, and the gear and the rack structure mesh with each other. The front end of the first push rod is provided with a locking block, and the width of the locking block is greater than the width of the pull rod. The cutting needle tool includes a tool holder and a tool body. The tool holder has a T-shaped through hole at the rear. The tool body is fixed on the front end face of the tool holder. The tool body includes a cutting edge, which is used for cutting. The width of the cutting edge is a predetermined size. The linkage mechanism includes a first track mechanism, a lever, a first connecting rod, and a second connecting rod; The first track mechanism includes a first track, a first slider, and a first base plate. The first base plate is located in the vertical section of the base, the first track is located on the first base plate, the first slider is slidably connected to the first track, the right side of the lever has a stepped structure, the lever is fixed above the first slider, and the lever is connected to the tool holder. A raised platform is provided on the vertical section of the base. The raised platform is located on the side of the first track mechanism. The middle part of the first connecting rod is hinged to the raised platform by bolts. A ball bearing is provided on one end of the first connecting rod. The ball bearing overlaps with the right side of the toggle block. The other end of the first connecting rod is hinged to one end of the second connecting rod. The other end of the second connecting rod is fixedly connected to the push pin mechanism. The pusher mechanism includes a second track mechanism, a second push rod, a push rod bracket, and a return spring. The second track mechanism includes a second base plate, a second track, and a second slider. The second base plate is located on the horizontal section of the base, the second track is located on the second base plate, and the second slider is slidably connected to the second track. The upper surface of the push rod bracket is provided with a straight through hole, which extends to the right end face of the push rod bracket. The push rod bracket is fixedly connected to the upper end face of the second slider. One end of the return spring is connected to the left end face of the push rod bracket. The push rod bracket is fixedly connected to the second connecting rod. The second push rod has a protrusion at its left end. The angle between the left end face and the upper end face of the protrusion is 90°, and the interior angle between the right end face and the upper end face of the protrusion is an obtuse angle. The second push rod is hinged to the straight through hole of the push rod bracket by a pin. The hinged position of the second push rod is located to the left of the center of gravity of the second push rod.

2. The needle cutter for a fish-eye needle bar according to claim 1, characterized in that, The bolt includes a head and a screw, one end of which is connected to the head. The screw has a threaded section and a smooth section, with the smooth section located above the threaded section. The threaded section is located inside the raised platform, and the smooth section is located inside the first connecting rod.

3. The needle cutter for a fish-eye needle bar according to claim 1, characterized in that, The corners of the stepped structure are rounded.

4. A needle cutter for a fish-eye needle bar according to claim 1, characterized in that, The end of the second push rod extends out of the straight through hole.

5. A needle cutter for a fish-eye needle bar according to claim 1, characterized in that, The feeding mechanism includes a first feeding platform, a second feeding platform, and a mounting side plate. A groove is provided on the right end face of the first feeding platform, and a cutting groove is provided on the upper end face of the first feeding platform. The shape of the cutting groove is the same as the shape of the blade. The first feeding platform is located on the left side of the push rod bracket, and the bottom surface of the groove on the right end face of the first feeding platform is connected to the other end of the return spring. The mounting side plate is connected to the front end face of the push rod bracket. The second feeding platform is installed on the upper end face of the mounting side plate by bolts. The bottom surface of the second feeding platform is connected to the upper end face of the push rod bracket. The upper surface of the second feeding platform is provided with a through hole, and the protrusion at the left end of the second push rod passes through the through hole. A pressure cover is provided above the second feeding platform. The bottom surface of the pressure cover has a groove. The fisheye pin array passes through the groove between the pressure cover and the feeding mechanism. The pressure cover has a notch. A pressure plate is provided in the notch. The pressure plate is fixed to the mounting side plate by bolts. A spring is provided between the pressure plate and the bolt head. One end of the spring abuts against the bolt head, and the other end of the spring abuts against the upper surface of the pressure plate. The pressure plate presses on the fisheye pin array.

6. A needle cutter for a fisheye needle bar according to claim 5, characterized in that, The first feeding platform is also equipped with a discharge pipe, which is used to recover the waste material from cutting. The discharge pipe includes an outlet and an inlet. The inlet is connected to the inside of the cutting groove. The bottom surface of the discharge pipe is inclined, and one end of the outlet is lower than one end of the inlet.

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