Pin processing device for manufacturing graphene diode and processing method thereof

Abstract

The invention relates to the technical field of graphene diode pin processing devices, in particular to a pin processing device for graphene diode manufacturing and a processing method thereof.The pin processing device comprises a lower pressing machine, a movable rod is slidably installed at the upper end of the inner side of the lower pressing machine, an upper pressing plate is fixedly installed at the bottom end of the movable rod, and a base is fixedly installed at the bottom end of the inner side of the lower pressing machine; an upper sheath is fixedly mounted at the bottom end of the upper pressing plate, a lower pressing plate is arranged below the upper pressing plate, a connecting rod is slidably mounted at one end, close to the upper sheath, of the lower pressing plate, a bending device is arranged below the lower pressing plate, a pin seat is mounted on the upper side of the base, and the electrical property of the graphene diode highly depends on the connection quality of a pin and the diode; by protecting the graphene diode and the pins, resistance increase, poor contact and even short circuit caused by damage to the connecting position in the bending process are avoided, the electrical performance of the connecting position can be kept stable through protection measures, and the performance of the diode in use is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of graphene diode pin processing devices, and in particular to a pin processing device for graphene diode manufacturing and a processing method thereof. Background Art

[0002] Graphene is a two-dimensional material composed of a single layer of carbon atoms. Due to its excellent electrical conductivity, mechanical strength and thermal conductivity, it is widely considered to be one of the important materials for future electronic devices. The applications of graphene cover multiple fields such as sensors, energy storage devices, conductive films, etc., especially in the manufacture of graphene diodes. Due to its high mobility and low operating voltage, it shows great application potential in high-frequency electronic devices.

[0003] After searching, it was found that the prior art announcement number is CN107052197B, which discloses a bending device for cylindrical diode pins, including an inclined conveying groove rail, a roller inserted at the lower end of the conveying groove rail, an arc-shaped groove formed on the outer wall of the roller, and pads formed on the side walls of the conveying groove rail on both sides of the groove, a connecting block fixed on the pad, a stopper formed at the lower end of the connecting block, and an annular sleeve formed at the lower end of the stopper, the roller sleeve is fixed on the rotating shaft, the two ends of the rotating shaft are hinged on the sleeve, one end of the rotating shaft extends out of the sleeve sleeve and is fixed with a driving gear. This scheme uses a mechanical method to realize the bending operation of the diode pins to replace the manual bending operation, thereby effectively improving production efficiency and ensuring that the bending lengths of the pins at both ends of the diode are consistent.

[0004] Therefore, based on the above search and combined with existing technologies, during the diode processing process, the connection between the pin and the diode is one of the most fragile parts of the entire diode structure. Therefore, during the bending process, it is most susceptible to concentrated stress, and the connection may be mechanically damaged, which in turn leads to increased contact resistance and even an open circuit or short circuit. In the above scheme, the diode is pushed to the block by a roller for blocking and then bent, which will cause increased stress at the connection between the diode and the pin, thereby causing damage to the connection, and is not very practical. For this reason, we propose a pin processing device and a processing method for graphene diode manufacturing. Summary of the Invention

[0005] The object of the present invention is to provide a pin processing device and a processing method for graphene diode manufacturing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pin processing device for manufacturing graphene diodes, comprising a lower press, a movable rod is slidably installed on the inner upper end of the lower press, an upper pressing plate is fixedly installed on the lower end of the movable rod, a base is fixedly installed on the inner bottom end of the lower press, the base is located below the upper pressing plate, and the graphene diode to be tested is placed above the base, the lower end of the upper pressing plate is fixedly installed with an upper sleeve, lower pressing plates are provided on the left and right sides below the upper pressing plate, and connecting rods are slidably installed on one end of the lower pressing plate close to the upper sleeve, rectangular holes are provided on the left and right ends of the upper pressing plate, the connecting rods are slidably installed in the rectangular holes, and a bending device for bending the graphene diode pins is provided below the lower pressing plate, pin seats are slidably installed on the left and right ends of the upper side of the base, and grooves are provided on the upper ends of the pin seats, and the pins of the graphene diode are located in the grooves.

[0007] As a further solution of the present invention, an adjustment shaft is rotatably installed at the bottom end of the base, and an elastic connecting rod is fixedly installed at the end of the pin seat away from the pin sleeve. The free end of the elastic connecting rod is wrapped around the outer surface of the adjustment shaft. Through the elastic characteristics of the elastic connecting rod, the elastic connecting rod can push the pin sleeve to move, so that the pins can be bent according to different requirements.

[0008] As a further solution of the present invention, the connecting rod and the lower pressure plate are connected by a resistance spring, the bottom end of the lower pressure plate is rotatably mounted with an abutment wheel, the inner end of the abutment wheel is fixedly mounted with a drive shaft, and the front and rear ends of the drive shaft are rotatably mounted with passive shafts.

[0009] As a further solution of the present invention, the bending device includes a steering plate, and the steering plate is fixedly connected to the passive shaft at one end close to the lower pressure plate. A spool is rotatably installed on the inner end of the steering plate, and a traction line is wound around the outer surface of the spool, which is pulled out by the traction line to cause the spool to rotate.

[0010] As a further solution of the present invention, a stabilizing plate is fixedly installed on the left end of the steering plate, a passive gear is rotatably installed on the inner end of the stabilizing plate, a driving gear is fixedly installed on the upper end of the spool, and the driving gear is engaged with the passive gear, and a retaining ring is provided on the left end of the stabilizing plate. When the spool rotates, it can drive the engagement between the passive gear and the passive rack, causing the retaining ring to rotate, and then hooking the pin.

[0011] As a further solution of the present invention, a sliding groove is provided at both the upper and lower ends of the retaining ring, a connecting column is fixedly installed at one end of the stabilizing plate close to the retaining ring, the connecting column is clamped in the sliding groove, and a passive rack is fixedly installed on the outer surface of the retaining ring, and the passive rack is engaged with the passive gear.

[0012] As a further solution of the present invention, the right end of the lower pressure plate is fixed with an adjusting cylinder by bolts, and a threaded rod is rotatably installed on the inner end of the adjusting cylinder. The threaded rod is hollow, and a sliding block is slidably installed on the inner end of the threaded rod, and the free end of the traction line is fixedly connected to the sliding block. A limit sleeve is provided on the threaded sleeve on the outer surface of the threaded rod, and the limit sleeve is used to limit the sliding distance of the sliding block. The sliding block and the threaded rod are connected by a reset spring.

[0013] As a further solution of the present invention, a passive rod is fixedly installed at the bottom end of the connecting rod, a through hole is opened on the outer surface of the lower pressure plate, and the passive rod passes through the through hole and the adjustment sleeve and is fixedly connected to the upper end of the sliding block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is in use, the electrical performance of the graphene diode is highly dependent on the quality of the connection between the pins and the diode. By protecting the connection between the graphene diode and the pins, damage to the connection during bending is avoided, which in turn leads to increased resistance, poor contact, or even a short circuit. Through protective measures, the electrical performance of the connection can be ensured to remain stable, thereby ensuring the performance of the diode during use; 2. When the present invention is in use, the installation position and pin configuration of the graphene diode may be different. The present invention can freely adjust the pin bending angle of the device, so that the graphene diode can be compatible with various types of circuit boards and packaging forms, thereby reducing the inventory pressure of different models of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a pin processing device for manufacturing graphene diodes; Figure 2 This is an enlarged structural diagram of a pin processing device used in graphene diode manufacturing; Figure 3 Schematic diagram of the positional relationship between the upper pressing plate and the base; Figure 4 Schematic diagram of the positional relationship between the lower pressure plate and the steering plate; Figure 5 It is a structural schematic diagram of the bending device; Figure 6 This is the disassembly diagram of the driving shaft and the passive shaft; Figure 7 It is an enlarged structural diagram of the bending device; Figure 8 Schematic diagram of the internal structure of the regulating cylinder; Figure 9 Schematic diagram of the internal structure of the threaded rod.

[0016] In the figure: 1, lower press; 2, upper press plate; 3, controller; 4, graphene diode; 5, movable rod; 101, lower press plate; 102, steering plate; 103, abutment wheel; 104, retaining ring; 105, passive shaft; 106, driving shaft; 107, abutment block; 108, retaining spring; 109, passive rod; 110, stabilizing plate; 111, passive ring; 201, base; 202, upper sheath; 20 3. Pin cover; 204. Connecting rod; 205. Resistance spring; 206. Pin seat; 207. Elastic connecting rod; 208. Adjusting shaft; 301. Adjusting cylinder; 302. Adjusting sleeve; 303. Threaded rod; 304. Sliding block; 305. Limiting sleeve; 306. Return spring; 401. Spool; 402. Pull line; 403. Driving gear; 404. Passive gear; 405. Passive rack. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figures 1 to 3 A pin processing device for manufacturing a graphene diode and a processing method thereof include a lower press 1, a movable rod 5 is slidably installed on the inner upper end of the lower press 1, and an upper pressing plate 2 is fixedly installed on the lower end of the movable rod 5 by bolts. A base 201 is fixedly installed on the inner bottom end of the lower press 1 by bolts, and the base 201 is located below the upper pressing plate 2. Specifically, a controller 3 is fixedly installed on the front end of the lower press 1, and an electric push rod (not shown in the figure) is fixedly installed on the inner end of the lower press 1. The telescopic end of the electric push rod is fixedly connected to the movable rod 5, and the electric push rod and the controller 3 are electrically connected by a wire. The controller 3 is used to control the extension and shortening of the telescopic end of the electric push rod; The graphene diode 4 to be tested is placed on the top of the base 201. A rubber sleeve is fixedly installed on the contact surface between the base 201 and the graphene diode 4 to prevent the outer surface of the graphene diode 4 from being scratched. The bottom end of the upper pressure plate 2 is fixedly welded with an upper sleeve 202. A protective rubber sleeve is fixedly installed on the end of the upper sleeve 202 close to the graphene diode 4. When in contact with the outer surface of the graphene diode 4, the outer surface of the graphene diode 4 can be protected from scratches to the maximum extent. Lower pressure plates 101 are provided on both sides below the upper pressure plate 2. The lower pressure plate 101 is close to the upper sleeve 202. One end of 02 is slidably mounted with a connecting rod 204, and the left and right ends of the upper pressing plate 2 are provided with rectangular holes, and the connecting rod 204 is slidably mounted in the rectangular holes. Specifically, the outer surface of the connecting rod 204 is provided with a rectangular groove, and a rectangular block is fixedly mounted in the rectangular hole. The rectangular block is located in the rectangular groove, thereby preventing the lower pressing plate 101 from rotating when moving upward or downward, and the connecting rod 204 can move left and right in the rectangular hole, and a rectangular block is fixedly mounted at the connection between the lower pressing plate 101 and the connecting rod 204, thereby further preventing the lower pressing plate 101 from rotating. More specifically, a threaded groove is formed at the upper end of the connecting rod 204, and a bolt is sleeved on the inner wall of the threaded groove. The bolt is located on the upper side of the upper pressure plate 2, thereby fixing the current position of the connecting rod 204. like Figure 2 、 3 As shown in Figure 4, a bending device for bending the pins of the graphene diode 4 is provided below the lower pressure plate 101, and pin holders 206 are slidably installed on the left and right ends of the upper side of the base 201. The upper ends of the pin holders 206 are provided with grooves, and the pins of the graphene diode 4 are located in the grooves. The connection between the graphene diode 4 and the pins is very fragile. The pin connections of the graphene diode 4 are supported by the pin holders 206 so that the stress generated during the pin bending process will not affect the pin connections of the graphene diode 4, and pin sleeves 203 are fixedly installed on the left and right ends of the upper sleeve 202, and the bottom ends of the pin sleeves 203 are provided with grooves, and the pin sleeves 203 are parallel to the pin holders 206.

[0019] Example 2: Please refer to Figure 3 、 4 Based on the first embodiment, an adjustment shaft 208 is rotatably mounted on the bottom end of the base 201, and an elastic connecting rod 207 is fixedly mounted on the end of the pin holder 206 away from the pin shield 203. The elastic connecting rod 207 is a component that recovers by its own elastic force after bending. It is a mature existing technology and will not be described in detail here. The free end of the elastic connecting rod 207 is wrapped around the outer surface of the adjustment shaft 208. After the adjustment shaft 208 is rotated, the elastic connecting rod 207 is wrapped or released to drive the pin holder 206 to move left and right. like Figure 4 、 5As shown in , 6, the connecting rod 204 is connected to the lower pressure plate 101 by a resistance spring 205, and the bottom end of the lower pressure plate 101 is rotatably installed with an abutment wheel 103, and the outer surface of the abutment wheel 103 is fixedly installed with an anti-slip rubber sleeve, and the inner end of the abutment wheel 103 is fixedly installed with a driving shaft 106, and the front and rear ends of the driving shaft 106 are rotatably installed with a passive shaft 105. Specifically, the passive shaft 105 is fixedly installed with a passive ring 111 on one end close to the driving shaft 106, and a plurality of holes are provided on the outer surface of the passive ring 111, and abutment blocks 107 are penetrated in the holes. The abutment blocks 107 and the passive ring 111 are connected by a reset clamping spring, and a plurality of clamping blocks are provided at the inner end of the driving shaft 106. The clamping blocks are arranged in a ring shape, and the abutment block 107 is located between two adjacent clamping blocks; See also Figure 5 、 6 7. The bending device includes a steering plate 102, and one end of the steering plate 102 close to the lower pressure plate 101 is fixedly connected to the passive shaft 105. The inner end of the steering plate 102 is rotatably mounted with a spool 401. The outer surface of the spool 401 is wound with a traction line 402. The spool 401 and the steering plate 102 are connected by a reset torsion spring. When the spool 401 is rotated by an external force to a certain angle, the reset torsion spring is compressed. As the force disappears, the spool 401 is restored to its initial state under the action of the elastic force of the reset torsion spring. Specifically, the limiting ring 108 is connected to the driving shaft 106 via a retaining spring 108 , and under the action of the retaining spring 108 , the lower pressure plate 101 and the steering plate 102 are in a non-vertical state; The left end of the steering plate 102 is fixedly mounted with a stabilizing plate 110, and the inner end of the stabilizing plate 110 is rotatably mounted with a passive gear 404. The upper end of the spool 401 is fixedly mounted with a driving gear 403, and the driving gear 403 is meshed with the passive gear 404. The left end of the stabilizing plate 110 is provided with a snap ring 104, which is semicircular, and has slide grooves at both the upper and lower ends of the snap ring 104. A connecting column is fixedly mounted on one end of the stabilizing plate 110 close to the snap ring 104, and the connecting column is snapped into the slide groove. Lubricating grease is applied to the slide groove to make it smoother when sliding. When the snap ring 104 rotates, it can hook the 4 pins of the graphene diode. A passive rack 405 is fixedly mounted on the outer surface of the snap ring 104, and the passive rack 405 is meshed with the passive gear 404. See also Figure 5 、 89. The right end of the lower pressure plate 101 is fixedly installed with an adjusting cylinder 301 by a bolt. The inner end of the adjusting cylinder 301 is rotatably installed with a threaded rod 303. The threaded rod 303 is hollow. The upper end of the adjusting cylinder 301 is rotatably installed with an adjusting sleeve 302. The adjusting sleeve 302 is fixedly connected to the threaded rod 303. A rectangular hole is provided on the outer surface of the threaded rod 303. A sliding block 304 is slidably installed on the inner end of the threaded rod 303, and the free end of the traction line 402 is fixedly connected to the sliding block 304. The outer surface of the threaded rod 303 is provided with a threaded sleeve with a limit sleeve. 305, the limiting sleeve 305 is used to limit the sliding distance of the sliding block 304. The sliding block 304 is connected to the threaded rod 303 by a return spring 306. The limiting sleeve 305 moves upward and pushes the sliding block 304 to move upward, so that the traction line 402 on the outer surface of the spool 401 is released a certain distance in advance. When the traction line 402 is released, the traction line 402 on the outer surface of the spool 401 is released by the longest length of the pre-released traction line 402. When the spool 401 is rotated, the maximum pre-rotation angle of the snap ring 104 can still hook the pin; Specifically, a sliding groove is formed at the inner end of the adjusting cylinder 301, and a protrusion is fixedly mounted on the outer surface of the limiting sleeve 305. The protrusion is located in the sliding groove, so that when the threaded rod 303 rotates, the limiting sleeve 305 will not rotate with it. The limiting sleeve 305 can move up or down under the constraints of the protrusion and the sliding groove. A protrusion is fixedly mounted on the outer surface of the sliding block 304. The protrusion passes through the rectangular hole on the outer surface of the threaded rod 303 and is parallel to the limiting sleeve 305. like Figure 4 、 8 As shown, the bottom end of the connecting rod 204 is fixedly mounted with a passive rod 109, the outer surface of the lower pressing plate 101 is provided with a through hole, and the passive rod 109 passes through the through hole and the adjusting sleeve 302 and is fixedly connected to the upper end of the sliding block 304; like Figure 2 As shown, a limiting clamp is fixedly installed on one end of the pin seat 206 close to the lower pressure plate 101, and a latch is slidably installed on one end of the lower pressure plate 101 close to the pin seat 206, and a spring is clamped between the latch and the lower pressure plate 101, so that the latch has a telescopic function. When the latch is clamped in the limiting clamp, the bottom end of the upper sleeve 202 is completely overlapped with the upper end of the base 201.

[0020] The working principle of the present invention is: When in use, the graphene diode 4 is placed on the upper end of the base 201, and then the adjustment shaft 208 is rotated according to the bending requirements, and the connecting rod 204 is adjusted, and then the adjustment sleeve 302 is rotated to realize the limit sleeve 305 to drive the sliding block 304 to move. Then, when the sliding block 304 moves, the traction line 402 on the outer surface of the spool 401 is released a distance in advance, and the bending length of the pin is adjusted in this way. Then, the telescopic end of the electric push rod drives the movable rod 5 to move downward. As the upper pressing plate 2 continues to move downward, the abutting wheel 103 first contacts the pin of the graphene diode 4. As the abutting wheel 103 continues to move downward, the pin is pressed downward, and the pin seat 206 is bent for the first time at a position away from the base 201. As the abutting wheel 103 moves downward, the abutting wheel 103 starts to rotate under the action of the anti-slip rubber sleeve, and drives the passive shaft 105 to rotate through the driving shaft 106. Then, under the action of the abutting block 107, the driving shaft 106 drives the passive shaft 105 to rotate until the steering plate 102 is parallel to the lower pressing plate 101. Then, until the latch is clamped in the limiting collar, the bottom ends of the upper sleeve 202 and the pin sleeve 203 are respectively fitted with the upper end of the base 201 and the upper end of the pin seat 206, and then the output shaft of the electric push rod drives the movable rod 5 to move upward. Then, when the latch is clamped in the limiting collar, the connecting rod 204 drives the passive rod 109 to move upward. During the upward movement of the passive rod 109, the traction wire 402 is pulled by the sliding block 304 to make the spool 401 rotate. Then, when the retaining ring 104 rotates, it is sleeved on the pin. The outer surface, then the clamping ring 104 cannot continue to rotate after rotating to the maximum angle, then as the passive rod 109 continues to rise, the steering plate 102 is rotated under the action of the traction line 402, thereby driving the pin to bend twice, and finally as the upward force continues, the latch breaks free from the limit clamping ring, then when the upper pressure plate 2 returns to its initial state, the graphene diode 4 is lifted, and the two pins are inserted into the clamping ring 104, then the graphene diode 4 is grasped and moved left and right to remove the two pins from the clamping ring 104 respectively; Subsequently, under the action of the resistance spring 205, the retaining spring 108 and the return torsion spring, the lower pressing plate 101 and the steering plate 102 return to their initial states.

[0021] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A pin processing device for manufacturing a graphene diode, comprising a pressing machine (1), characterized in that: A movable rod (5) is slidably mounted on the inner upper end of the lower press (1), an upper pressing plate (2) is fixedly mounted on the lower end of the movable rod (5), a base (201) is fixedly mounted on the inner lower end of the lower press (1), the base (201) is located below the upper pressing plate (2), a graphene diode (4) to be tested is placed above the base (201), an upper sheath (202) is fixedly mounted on the lower end of the upper pressing plate (2), lower pressing plates (101) are provided on both the left and right sides below the upper pressing plate (2), and the lower pressing plate (1 01) A connecting rod (204) is slidably mounted on one end close to the upper sleeve (202), rectangular holes are provided at both left and right ends of the upper pressure plate (2), and the connecting rod (204) is slidably mounted in the rectangular holes, a bending device for bending the pins of the graphene diode (4) is provided below the lower pressure plate (101), and pin holders (206) are slidably mounted on both left and right ends of the upper side of the base (201), and grooves are provided at the upper ends of the pin holders (206), and the pins of the graphene diode (4) are located in the grooves.

2. The pin processing device for manufacturing a graphene diode according to claim 1, characterized in that: An adjusting shaft (208) is rotatably mounted on the bottom end of the base (201), and an elastic connecting rod (207) is fixedly mounted on one end of the pin seat (206) away from the pin sleeve (203), wherein the free end of the elastic connecting rod (207) is wound around the outer surface of the adjusting shaft (208).

3. The pin processing device for manufacturing a graphene diode according to claim 2, characterized in that: The connecting rod (204) is connected to the lower pressure plate (101) via a resistance spring (205). The bottom end of the lower pressure plate (101) is rotatably mounted with an abutment wheel (103). The inner end of the abutment wheel (103) is fixedly mounted with a drive shaft (106). The front and rear ends of the drive shaft (106) are both rotatably mounted with a passive shaft (105).

4. The pin processing device for manufacturing a graphene diode according to claim 1, characterized in that: The bending device comprises a steering plate (102), and one end of the steering plate (102) close to the lower pressure plate (101) is fixedly connected to the passive shaft (105), and a spool (401) is rotatably mounted on the inner end of the steering plate (102), and a traction line (402) is wound around the outer surface of the spool (401).

5. The pin processing device for manufacturing a graphene diode according to claim 4, characterized in that: A stabilizing plate (110) is fixedly mounted on the left end of the steering plate (102), a passive gear (404) is rotatably mounted on the inner end of the stabilizing plate (110), a driving gear (403) is fixedly mounted on the upper end of the spool (401), and the driving gear (403) is meshed with the passive gear (404), and a snap ring (104) is provided on the left end of the stabilizing plate (110).

6. The pin processing device for manufacturing a graphene diode according to claim 5, characterized in that: The upper and lower ends of the snap ring (104) are provided with a slide groove, and a connecting column is fixedly installed on one end of the stabilizing plate (110) close to the snap ring (104), and the connecting column is clamped in the slide groove. A passive rack (405) is fixedly installed on the outer surface of the snap ring (104), and the passive rack (405) is engaged with the passive gear (404).

7. The pin processing device for manufacturing a graphene diode according to claim 6, characterized in that: The right end of the lower pressure plate (101) is fixedly installed with an adjusting cylinder (301) by means of bolts, and the inner end of the adjusting cylinder (301) is rotatably installed with a threaded rod (303), the threaded rod (303) is hollow, and the inner end of the threaded rod (303) is slidably installed with a sliding block (304), and the free end of the traction line (402) is fixedly connected to the sliding block (304), and the outer surface threaded sleeve of the threaded rod (303) is provided with a limiting sleeve (305), and the limiting sleeve (305) is used to limit the sliding distance of the sliding block (304), and the sliding block (304) and the threaded rod (303) are connected via a reset spring (306).

8. The pin processing device for manufacturing a graphene diode according to claim 3, characterized in that: A passive rod (109) is fixedly mounted on the bottom end of the connecting rod (204), a through hole is provided on the outer surface of the lower pressing plate (101), and the passive rod (109) passes through the through hole and the adjusting sleeve (302) and is fixedly connected to the upper end of the sliding block (304).

9. A method for processing pins for manufacturing a graphene diode, applied to a device for processing pins for manufacturing a graphene diode according to any one of claims 1 to 8, characterized in that: S1: The movable rod (5) moves downward. As the upper pressure plate (2) continues to move downward, the abutment wheel (103) first contacts the pin of the graphene diode (4). As the abutment wheel (103) continues to move downward, the pin is pressed downward, and the pin seat (206) is bent for the first time at a position away from the base (201). As the abutment wheel (103) moves downward, the abutment wheel (103) starts to rotate under the action of the anti-slip rubber sleeve, and drives the passive shaft (105) to rotate through the driving shaft (106). Then, under the action of the abutment block (107), the driving shaft (106) drives the passive shaft (105) to rotate until the steering plate (102) is parallel to the lower pressure plate (101); S2: The connecting rod (204) drives the passive rod (109) to move upward. During the upward movement of the passive rod (109), the traction line (402) is pulled by the sliding block (304) to rotate the spool (401). Then, the snap ring (104) is sleeved on the outer surface of the pin when rotating. Then, after the snap ring (104) rotates to the maximum angle, it cannot continue to rotate. Then, as the passive rod (109) continues to rise, the steering plate (102) is rotated under the action of the traction line (402), thereby driving the pin to bend twice.

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