Diode pin cutting mechanism
By designing a diode cutting mechanism with components such as a fixed shaft, limiting block, and locking block, the problems of blade wear and offset in the existing technology are solved, achieving convenient installation and high-precision cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SHIKUES MICRO IND CO
- Filing Date
- 2025-07-16
- Publication Date
- 2026-04-28
AI Technical Summary
Existing diode lead cutting machines lack a design that facilitates the disassembly and assembly of the horizontal shaft and cutting blades during the lead cutting process, leading to blade wear and misalignment, which affects the cutting quality.
A diode cutting mechanism including a fixed shaft, a limiting block, a locking block, a pull-out component, and a limiting component was designed. The fixed shaft is conveniently installed and limited by screws and hand-tightening screws. The pull-out component and the limiting component work together to prevent the blade from deviating.
It facilitates the disassembly and assembly of the horizontal axis and cutting blade, avoids blade misalignment, and improves cutting accuracy and consistency.
Smart Images

Figure CN224168633U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of diode processing equipment, and specifically relates to a diode lead cutting mechanism. Background Technology
[0002] In the diode manufacturing process, there is a lead cutting process. A diode lead cutting machine is a device used to cut the diode leads. The diode lead cutting machine is equipped with a gear shaft driven by a motor and a feeding gear. The principle is to put the tape-type diode leads into the guide rail with "V" grooves and the tooth grooves on the gear. The motor drives the gear shaft and the gear to rotate, and the gear drives the tape-type diode leads to feed continuously. At the preset lead length position, the diode leads driven by the gear come into contact with the blade. At the moment of contact, under the action of instantaneous shearing force, the leads are cut off, achieving the purpose of lead cutting.
[0003] The lead-cutting mechanism on a diode lead-cutting machine consists of a lead-cutting blade and a horizontal axis that fixes and supports the lead-cutting blade. During the continuous lead-cutting process, the lead and the blade come into frequent contact, which may cause wear on one side of the blade edge, or the blade may deviate slightly under the action of shearing force, resulting in problems such as burrs on the cut leads and inconsistent lead lengths on both sides of the diode. The diode lead-cutting machine does not have a design that facilitates the disassembly and assembly of the horizontal axis and the lead-cutting blade, and can limit the lead-cutting blade, which needs to be improved.
[0004] Existing diode lead cutting machines have the problem of lacking a lead cutting assembly design that facilitates the disassembly and assembly of the horizontal axis and the lead cutting blade, and limits the lead cutting blade design when continuously and frequently cutting diode leads. To address this issue, this application proposes a diode lead cutting mechanism. Utility Model Content
[0005] The purpose of this invention is to provide a diode cutting mechanism to solve the problems mentioned in the background art, such as the lack of a cutting assembly design that facilitates the disassembly and assembly of the horizontal axis and the cutting blade, and the limitation of the cutting blade.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A diode lead-cutting mechanism, comprising...
[0007] A diode lead-cutting assembly includes a fixed shaft mounted on the main body of a diode lead-cutting machine, a lead-cutting blade sleeved on the outside of the fixed shaft, and a fixed cylinder.
[0008] The mounting components include a limiting block that is screwed onto the inner wall of the diode corner cutting machine body, a protrusion at the center of the limiting block, a fixing block that is screwed onto the outer surface of the diode corner cutting machine body, and a locking block that is concave-convexly connected to the fixing block.
[0009] The pull-out assembly includes a connecting block that is vertically defined on the top surface of the block, a pull-out plate that is pulled out and connected to the connecting block, and a crossbar that is fixedly connected at one end to the top surface of the pull-out plate.
[0010] The limiting components include a movable block sleeved on a crossbar, a connecting rod perpendicular to the bottom surface of the movable block, and a limiting plate fixedly connected to the bottom surface of the connecting rod.
[0011] Preferably, one end of the fixed shaft, which passes through the fixed block and the diode corner cutting machine body, is inserted into the interior of the limiting block, and one end of the fixed shaft has a groove that mates with the protrusion.
[0012] Preferably, one end of the fixed shaft is a square head c, which engages with the fixed block.
[0013] Preferably, the top surface of the fixing block is provided with a "T"-shaped mounting groove that mates with the card block, and the square head c is provided with a plug-in groove for the card block to be inserted.
[0014] Preferably, the card block has a hand-tightening locking screw a that penetrates the square head c of the fixed shaft end.
[0015] Preferably, the top surface of the movable block is provided with a hand-tightening locking screw a that is locked to the crossbar, the limiting plate has a "U" shaped structure, and the inner sidewall of the limiting plate matches the outer surface of the lead shearing blade.
[0016] Preferably, a drive shaft is rotatably connected between the opposing surfaces of the diode corner cutting machine body via bearings, and a feeding gear is fixed to the drive shaft by bolts.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. In this utility model, the designed installation components, through the synergistic action of the fixing block, the limiting block, and the locking block, achieve the purpose of facilitating the installation of the fixed shaft.
[0019] 2. In this utility model, the pull-out component and the limiting component are designed to limit the pin cutting blade under the synergistic effect of the pull-out component and the limiting component, so as to prevent the pin cutting blade from deviating. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the main body of the diode corner cutting machine of this utility model;
[0021] Figure 2 This is a schematic diagram of the main structure of the diode corner cutting machine of this utility model;
[0022] Figure 3 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;
[0023] Figure 4 This is a cross-sectional view of the combination of the fixing block and the locking block of this utility model;
[0024] Figure 5 This is a three-dimensional structural diagram of the fixed shaft of this utility model;
[0025] Figure 6 This is a three-dimensional structural diagram of the limiting block of this utility model;
[0026] In the diagram: 1. Main body of diode corner cutting machine; 2. Drive shaft; 3. Fixed shaft; 4. Limiting block; 5. Fixed block; 6. Clamping block; 7. Crossbar; 21. Feeding gear; 31. Lead shearing blade; 32. Fixed cylinder; 41. Connecting block; 42. Protrusion; 71. Pull-out plate; 81. Moving block; 82. Connecting rod; 83. Limiting plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1 to 6This utility model provides a technical solution: a diode lead cutting mechanism, including a lead cutting assembly for cutting diode leads, comprising a fixed shaft 3 mounted on the diode lead cutting machine body 1, a lead cutting blade 31 sleeved on the outside of the fixed shaft 3, and a fixed cylinder 32. When the diode lead cutting machine body 1 is running, a drive motor is installed inside the diode lead cutting machine body 1. Under the action of the drive motor, the drive shaft 2 and the feeding gear 21 rotate. The feeding gear 21 continuously feeds the tape-type diodes, and the feeding gear 21 contacts the diode leads with the lead cutting blade 31. At the moment of contact, the lead is cut instantly. Under force, the leads are cut off, achieving the purpose of cutting off the diode leads; the mounting components include a limiting block 4 mounted on the inner wall of the diode corner cutting machine body 1 by screws, a protrusion 42 perpendicular to the center of the limiting block 4, a fixing block 5 mounted on the outer surface of the diode corner cutting machine body 1 by screws, and a locking block 6 that is concave-convex connected to the fixing block 5. When the fixing shaft 3 is installed, the limiting block 4 and the fixing block 5 are fixedly installed with the diode corner cutting machine body 1, and the fixing shaft 3 passes through the fixing block 5 and the diode corner cutting machine body 1 on one side. Then, the lead cutting blade 31 and the fixing cylinder 32 are sleeved on the outside of the fixing shaft 3, leading... The pin shearing blade 31 and the fixed cylinder 32 are fixed with screws. The fixed cylinder 32 is fixed with the fixed shaft 3 by hand-tightening screws. Then, one end of the fixed shaft 3 is inserted into the limiting block 4, and the locking block 6 is embedded in the fixed block 5 to limit and fix the fixed shaft 3. When it is necessary to replace the pin shearing blade 31 and the fixed cylinder 32, the locking block 6 is removed, and one end of the fixed shaft 3 is pulled outward. There is a gap between the end of the fixed shaft 3 and the inner sidewall of the limiting block 4, which facilitates the disassembly of the pin shearing blade 31 and the fixed cylinder 32. The pull-out assembly includes a connecting block 41 perpendicular to the top surface of the limiting block 4 and a pull-out mechanism connected to the connecting block 41. The pull plate 71 and the crossbar 7, one end of which is fixedly connected to the top surface of the pull plate 71, move vertically upwards. The pull plate 71 is pulled and connected to the connecting block 41, which can change the position of the crossbar 7 and the connecting block 41, thereby changing the height of the limiting component. The limiting component includes a moving block 81 sleeved on the crossbar 7, a connecting rod 82 perpendicular to the bottom surface of the moving block 81, and a limiting plate 83 fixedly connected to the bottom surface of the connecting rod 82. The limiting plate 83 is installed on the outer side of the top of the pin shearing blade 31. The limiting plate 83 serves to limit the pin shearing blade 31 and prevent the pin shearing blade 31 and the fixed cylinder 32 from shifting.
[0029] In this embodiment, the fixed shaft 3 passes through the fixed block 5 and the diode corner cutting machine body 1. One end of the fixed shaft 3 is inserted into the interior of the limiting block 4. A groove is opened at one end of the fixed shaft 3 to cooperate with the protrusion 42. The protrusion 42 is inserted into the interior of the fixed shaft 3, so that one end of the fixed shaft 3 is limited.
[0030] In this embodiment, one end of the fixed shaft 3 is a square head c, which is engaged with the fixed block 5. The top surface of the fixed block 5 is provided with a "T"-shaped mounting groove that cooperates with the locking block 6. The square head c is provided with a plug-in groove for the locking block 6 to be inserted. The locking block 6 is inserted into the interior of the fixed block 5 and the square head c at one end of the fixed shaft 3, thereby limiting the fixed block 5 and the fixed shaft 3 and preventing the fixed shaft 3 from shifting.
[0031] In this embodiment, a hand-tightening locking screw a is inserted through the square head c at one end of the fixed shaft 3 on the card block 6. Under the locking action of the hand-tightening locking screw a, the card block 6 and the square head c are firmly connected.
[0032] In this embodiment, a hand-tightening locking screw a is provided on the top surface of the movable block 81 to lock with the crossbar 7. Under the locking action of the hand-tightening locking screw a, the movable block 81 is stably connected with the crossbar 7. The limiting plate 83 has a "U" shaped structure. The inner sidewall of the limiting plate 83 matches the outer surface of the lead shearing blade 31. The limiting plate 83 serves to limit the lead shearing blade 31 and prevent the lead shearing blade 31 and the fixed cylinder 32 from shifting.
[0033] In this embodiment, a drive shaft 2 is rotatably connected between the opposing surfaces of the diode corner cutting machine body 1 via bearings. A feeding gear 21 is fixed on the drive shaft 2 by bolts. The feeding gear 21 continuously feeds the tape-type diodes. The feeding gear 21 brings the diode leads into contact with the lead cutting blade 31. At the moment of contact, under the action of instantaneous shearing force, the leads are cut off, thereby achieving the purpose of cutting off the diode leads.
[0034] Working principle and usage process of this utility model:
[0035] When the diode corner cutting machine body 1 is running, a drive motor is installed inside the diode corner cutting machine body 1. Under the action of the drive motor, the drive shaft 2 and the feeding gear 21 rotate. The feeding gear 21 continuously feeds the tape-type diodes. The feeding gear 21 contacts the diode leads with the lead cutting blade 31. At the moment of contact, under the action of instantaneous shearing force, the leads are cut off, thus achieving the purpose of cutting off the diode leads.
[0036] When the pin shearing blades 31, which are symmetrically distributed on the left and right sides, show wear on one side and need to be replaced, manually loosen the hand-tightening screws a and b, move the crossbar 7 upward, and make the limiting plate 83 move away from the pin shearing blades 31.
[0037] Remove the card block 6 from the fixing block 5 and pull out one end of the fixing shaft 3 so that there is a gap between one end of the fixing shaft 3 and the inner side wall of the diode corner cutting machine body 1, making it convenient to disassemble the pin cutting blade 31 and the fixing cylinder 32 on the fixing shaft 3 for replacement.
[0038] After the replacement is completed, insert one end of the fixed shaft 3 back into the limiting block 4, and the protrusion 42 engages with the fixed shaft 3.
[0039] Install the locking block 6, which is embedded inside the surface of the fixing block 5 and one end of the fixing shaft 3. Manually tighten the hand-tightening screw a to achieve the limiting and fixing of the fixing shaft 3.
[0040] The horizontal bar 7 is lowered, the pull plate 71 is pulled out and connected to the connecting block 41, and the moving block 81, the connecting rod 82 and the limiting plate 83 are moved vertically downward;
[0041] The inner sidewall of the limiting plate 83 matches the outer surface of the lead shearing blade 31. The limiting plate 83 serves to limit the lead shearing blade 31 and prevent the lead shearing blade 31 from shifting away from the fixed cylinder 32.
[0042] In summary, this application provides a cutting component design that facilitates the disassembly and assembly of the horizontal shaft and the cutting blade, and limits the cutting blade. With the coordinated action of the fixing block 5, the limiting block 4, and the locking block 6, the installation of the fixing shaft 3 is facilitated. With the coordinated action of the pull-out component and the limiting component, the pin cutting blade 31 is limited, preventing the pin cutting blade 31 from shifting.
[0043] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A diode lead-cutting mechanism, characterized in that: include The diode lead cutting assembly includes a fixed shaft (3) mounted on the diode lead cutting machine body (1), a lead cutting blade (31) sleeved on the outside of the fixed shaft (3), and a fixed cylinder (32). The mounting components include a limiting block (4) mounted on the inner wall of the diode corner cutting machine body (1) by screws, a protrusion (42) at the center of the vertical limiting block (4), a fixing block (5) mounted on the outer surface of the diode corner cutting machine body (1) by screws, and a locking block (6) that is concave-convex connected to the fixing block (5). The pull-out assembly includes a connecting block (41) on the top surface of a vertical limiting block (4), a pull-out plate (71) that is pulled out and connected to the connecting block (41), and a crossbar (7) that is fixedly connected at one end to the top surface of the pull-out plate (71). The limiting components include a movable block (81) sleeved on the crossbar (7), a connecting rod (82) on the bottom surface of the movable block (81), and a limiting plate (83) fixedly connected to the bottom surface of the connecting rod (82).
2. The diode lead-cutting mechanism according to claim 1, characterized in that: The fixed shaft (3) passes through the fixed block (5) and the diode corner cutting machine body (1) and is inserted into the interior of the limiting block (4). One end of the fixed shaft (3) is provided with a groove that cooperates with the protrusion (42).
3. A diode lead-cutting mechanism according to claim 1, characterized in that: One end of the fixed shaft (3) is a square head c, which is engaged with the fixed block (5).
4. A diode lead-cutting mechanism according to claim 3, characterized in that: The top surface of the fixing block (5) is provided with a "T"-shaped mounting groove that cooperates with the card block (6), and the square head c is provided with a plug-in groove for the card block (6) to be inserted.
5. A diode lead-cutting mechanism according to claim 4, characterized in that: The card block (6) has a hand-tightening locking screw a that is inserted into the square head c of one end of the fixed shaft (3).
6. A diode lead-cutting mechanism according to claim 1, characterized in that: The top surface of the movable block (81) is provided with a hand-tightening locking screw a that is locked to the crossbar (7). The limiting plate (83) has a "U" shaped structure. The inner sidewall of the limiting plate (83) matches the outer surface of the lead shearing blade (31).
7. A diode lead-cutting mechanism according to claim 1, characterized in that: The opposing surfaces of the diode corner cutting machine body (1) are rotatably connected by a drive shaft (2) via bearings, and a feeding gear (21) is fixed on the drive shaft (2) by bolts.