Continuous trimming equipment for diode pins
By designing a continuous diode pin trimming device, automated trimming was achieved, solving the problems of low efficiency and difficulty in ensuring accuracy in traditional manual trimming, and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520517074.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Traditional diode lead trimming is mainly done manually, which is inefficient and makes it difficult to guarantee trimming accuracy. This results in inconsistent lead lengths, affecting diode quality and subsequent soldering processes.
Design a continuous diode pin trimming device, including a feeding platform, a pin pressing mechanism, a trimming mechanism, a material handling mechanism, and a drive mechanism, to achieve automated trimming. Through the smooth conveying of the pin pressing mechanism and the precise cutting of the trimming mechanism, combined with the continuous feeding of the drive mechanism, the continuity and consistency of pin trimming are ensured.
It improves production efficiency, reduces labor costs and scrap rate, ensures pin integrity and quality stability, increases product yield, and avoids damage problems that may be caused by manual trimming.
Smart Images

Figure CN223888863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to diode processing, and in particular to a device for continuous trimming of diode leads. Background Technology
[0002] A diode is an electronic device made of semiconductor materials (silicon, selenium, germanium, etc.) [1]. A diode has two electrodes, the positive electrode, also called the anode; and the negative electrode, also called the cathode. When a forward voltage is applied between the two electrodes of the diode, the diode conducts; when a reverse voltage is applied, the diode is cut off. The conduction and cut-off of the diode are equivalent to the opening and closing of a switch. The diode has unidirectional conductivity. When it conducts, the current flows from the anode through the tube to the cathode. The diode is one of the earliest semiconductor devices and its applications are very wide. In particular, in various electronic circuits, by using diodes and components such as resistors, capacitors, and inductors to form circuits with different functions, it is possible to realize multiple functions such as AC rectification, modulation signal detection, amplitude limiting and clamping, and voltage regulation of power supply.
[0003] Traditional lead trimming is mostly done manually, with workers using simple tools such as scissors to trim diode leads one by one. This method is not only inefficient, but also makes it difficult to guarantee trimming accuracy, easily resulting in inconsistent lead lengths, which affects the quality of the diode and subsequent soldering processes. Utility Model Content
[0004] This invention provides a continuous diode lead trimming device, aiming to solve the problem that traditional lead trimming is mostly done manually, with workers using simple tools such as scissors to trim diode leads one by one. This method is not only inefficient, but also makes it difficult to guarantee trimming accuracy, easily resulting in inconsistent lead lengths, which affects the quality of the diode and subsequent soldering processes.
[0005] This utility model is implemented as follows: a diode pin continuous trimming device includes a worktable, a feeding plate is installed on the top of the worktable, a pin pressing mechanism is installed on one side of the worktable located on the feeding plate, a trimming mechanism is installed on the worktable above the pin pressing mechanism, a picking mechanism is installed on the worktable on the side of the worktable away from the trimming mechanism, and a driving mechanism is installed on the worktable on the side of the worktable away from the feeding plate.
[0006] Preferably, the pin pressing mechanism includes: a first support platform, the bottom of the first support platform is mounted on a workbench, a pressure plate is fixedly connected to the top of the first support platform, a limit plate is installed on one side of the first support platform located on the pressure plate, and a sliding groove is formed in the pressure plate.
[0007] The advantages of adopting the above-mentioned further solution are: it facilitates the sliding of the diode head in the gap, limits the diode by using a limiting plate, and facilitates the linear movement of the lead strip in the groove.
[0008] Preferably, the trimming mechanism includes: a second support platform, the bottom of which is fixedly mounted on a workbench, a mounting base mounted on the top of the second support platform, a trimming cylinder mounted on the mounting base, a fixed seat fixedly connected to the output end of the trimming cylinder, and a blade mounted on the bottom of the fixed seat.
[0009] The advantage of adopting the above-mentioned further solution is that it makes it easier for the cutting tool to cut the diode pins directly below.
[0010] Preferably, the material handling mechanism includes: a third support platform, the bottom of which is mounted on a workbench, a material handling cylinder mounted on the top of the third support platform, a connecting plate mounted on the output end of the material handling cylinder, a sliding plate mounted on the bottom of the connecting plate, a clamping cylinder mounted on one end of the sliding plate, and a gripper mounted on the output end of the clamping cylinder.
[0011] The advantage of adopting the above-mentioned further solution is that it facilitates the clamping and unloading of diodes on the pin pressing mechanism 3.
[0012] Preferably, the driving mechanism includes: a fourth support platform, the bottom of which is fixedly mounted on the workbench, a drive motor mounted on the top of the fourth support platform, an output chuck fixedly connected to the output end of the drive motor, and several sets of protruding posts around the discharge chuck.
[0013] The beneficial effect of adopting the above-mentioned further solution is that it drives the pin belt to move, thereby driving the feeding and realizing continuous pin trimming.
[0014] Preferably, the workbench is equipped with a discharge support column located below the material handling mechanism, and the discharge support column is inclined.
[0015] The beneficial effect of adopting the above-mentioned further solution is that it facilitates the sliding of the trimmed diodes into the collection box 9 via the chute 8, so as to collect the processed diodes.
[0016] Preferably, the bottom of the workbench is provided with several sets of casters, and the workbench is equipped with threaded feet on one side of the casters.
[0017] The advantages of adopting the above-mentioned further solution are: it facilitates the movement and handling of the equipment, and by setting threaded feet, the equipment can be supported by rotating the threaded feet, thus ensuring the stability of the equipment during operation.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a continuous diode lead trimming device. By providing a feeding platform at the feeding front end for convenient auxiliary feeding, a lead pressing mechanism for pressing the diodes on the lead strip facilitates smooth conveying of the lead strip, thus enabling continuous lead trimming. A trimming mechanism is provided to trim the diode leads on the lead pressing mechanism. A material handling mechanism is provided to clamp and unload the diodes from the lead pressing mechanism. A driving mechanism is provided to drive the lead strip on the pressing mechanism to move, facilitating continuous and automated lead trimming. This reduces manual operation and lowers labor costs. Simultaneously, the high efficiency and stability of the equipment reduce scrap rates and equipment maintenance costs, thereby reducing overall production costs, improving production efficiency, and enhancing product quality. It avoids lead damage that may occur with manual trimming, ensuring the integrity and quality stability of the diode leads and improving the product yield. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 for Figure 1 A schematic diagram of the side view structure;
[0021] Figure 3 for Figure 1 A schematic diagram of the middle pin pressing mechanism;
[0022] Figure 4 for Figure 1 Schematic diagram of the pruning mechanism;
[0023] Figure 5 for Figure 1 Schematic diagram of the material handling mechanism and unloading chute;
[0024] Figure 6 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.
[0025] In the diagram: 1. Workbench; 2. Feeding platform; 3. Pin pressing mechanism; 31. First support platform; 32. Pressure plate; 33. Limiting plate; 4. Trimming mechanism; 41. Second support platform; 42. Mounting base; 43. Trimming cylinder; 44. Fixed base; 45. Cutting tool; 5. Material handling mechanism; 51. Third support platform; 52. Material handling cylinder; 53. Connecting plate; 54. Slide plate; 55. Clamping cylinder; 56. Gripper; 6. Drive mechanism; 61. Fourth support platform; 62. Drive motor; 63. Discharge chuck; 7. Unloading support column; 8. Unloading chute; 9. Collection box; 10. Casters; 11. Threaded feet. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] Please see Figure 1-6 This utility model provides a technical solution for a continuous diode pin trimming device: a continuous diode pin trimming device includes a workbench 1, a feeding plate 2 is installed on the top of the workbench 1, a pin pressing mechanism 3 is installed on one side of the workbench 1 located on the feeding plate 2, a trimming mechanism 4 is installed on the workbench 1 above the pin pressing mechanism 3, a material picking mechanism 5 is installed on the side of the workbench 1 located on the pin pressing mechanism 3 away from the trimming mechanism 4, and a driving mechanism 6 is installed on the side of the workbench 1 located on the pin pressing mechanism 3 away from the feeding plate 2.
[0028] In this embodiment, a feeding platform 2 is provided at the front end of the feeding process to facilitate auxiliary feeding. A pin pressing mechanism 3 is provided to press the diodes on the pin strip, which facilitates the smooth transport of the pin strip and thus enables continuous pin trimming. A trimming mechanism 4 is provided to trim the diode pins on the pin pressing mechanism 3. A material handling mechanism 5 is provided to clamp and unload the diodes on the pin pressing mechanism 3. A driving mechanism 6 is provided to drive the pin strip on the pressing mechanism 3 to move, which facilitates continuous and automated pin trimming, reduces manual operation, and lowers labor costs. At the same time, the efficient operation and stability of the equipment reduce the scrap rate and equipment maintenance costs, thereby reducing overall production costs, improving production efficiency, and improving product quality. It avoids problems such as pin damage that may be caused by manual trimming, ensures the integrity and quality stability of the diode pins, and improves the product yield.
[0029] Furthermore, the pin pressing mechanism 3 includes: a first support platform 31, the bottom of the first support platform 31 is mounted on the workbench 1, a pressure plate 32 is fixedly connected to the top of the first support platform 31, a limit plate 33 is installed on one side of the first support platform 31 located on the pressure plate 32, and a sliding groove is provided in the pressure plate 32.
[0030] In this embodiment, a pin pressing mechanism 3 is provided to press the diode on the pin strip, which facilitates the smooth transport of the pin strip and thus facilitates continuous pin trimming. The pin pressing mechanism 3 includes a first support platform 31, a pressure plate 32, and a limiting plate 33. The first support platform 31 is fixedly installed on the upper surface of the workbench 1. The pressure plate 32 is fixed on the first support platform 31 and has a groove. The pin strip with the diode passes through the groove, which facilitates the pressing effect of the pressure plate 32 on the pin strip. The pin strip can move smoothly in the groove. The limiting plate 33 is provided, and there is a gap between the limiting plate 33 and the pressure plate 32, which facilitates the sliding of the diode head in the gap. The limiting plate 32 limits the diode and facilitates the linear movement of the pin strip in the groove.
[0031] Typically, the trimming mechanism 4 includes: a second support platform 41, the bottom of which is fixedly mounted on the workbench 1, a mounting base 42 mounted on the top of the second support platform 41, a trimming cylinder 43 mounted on the mounting base 42, a fixed base 44 fixedly connected to the output end of the trimming cylinder 43, and a blade 45 mounted on the bottom of the fixed base 44.
[0032] In this embodiment, a trimming mechanism 4 is provided to trim the diode pins on the pin pressing mechanism 3. The trimming mechanism 4 includes a second support platform 41, which is fixedly mounted on the workbench 1 at the bottom. A mounting base 42 is installed on the second support platform 41, and a trimming cylinder 43 is installed on the mounting base 42. By driving the trimming cylinder 43, the fixed base 44 is moved up and down, thereby facilitating the cutting tool 45 to cut the diode pins directly below.
[0033] Specifically, the material handling mechanism 5 includes: a third support platform 51, the bottom of which is mounted on the workbench 1, a material handling cylinder 52 mounted on the top of the third support platform 51, a connecting plate 53 mounted on the output end of the material handling cylinder 52, a sliding plate 54 mounted on the bottom of the connecting plate 53, a clamping cylinder 55 mounted on one end of the sliding plate 54, and a gripper 56 mounted on the output end of the clamping cylinder 55.
[0034] In this embodiment, a material-picking mechanism 5 is provided for clamping and unloading diodes from the pin-pressing mechanism 3. The material-picking mechanism 5 includes a third support platform 51, a material-picking cylinder 52 is installed on the third support platform 51, and a sliding plate 54 is fixedly connected to the bottom of the connecting plate 53. The material-picking cylinder 52 drives the sliding plate 54 at the bottom of the connecting plate 53 to move towards the pressing mechanism 3. A clamping cylinder 55 is installed at one end of the sliding plate 54 near the pressing mechanism 3. A material-picking groove is provided on the pressing mechanism 3. When the clamping cylinder 55 moves to the material-picking groove, the clamping claw 56 on the clamping cylinder 55 is driven to clamp the diode and cooperate with the upper trimming mechanism 4 to trim it. After trimming, the material-picking cylinder 52 is reset, the clamping claw 56 is retracted, the clamping claw 56 is released, and the trimmed diode is placed into the unloading chute 8 and slides into the collection box 9, completing the material-picking operation.
[0035] In addition, the drive mechanism 6 includes: a fourth support platform 61, the bottom of which is fixedly mounted on the workbench 1, a drive motor 62 mounted on the top of the fourth support platform 61, and a discharge chuck 63 fixedly connected to the output end of the drive motor 62, with several sets of protruding posts around the discharge chuck 63.
[0036] In this embodiment, a drive mechanism 6 is provided to drive the pin strip on the pressing mechanism 3 to move, so as to facilitate continuous pin trimming. The drive mechanism 6 includes a fourth support platform 61, a drive motor 62 is installed on the fourth support platform 61, and a discharge chuck 63 is fixedly connected to the output end of the drive motor 62. During operation, the pin strip is pulled onto the discharge chuck 63, and the corresponding protrusion on the discharge chuck 63 engages with the hole on the pin strip, thereby driving the pin strip to move, thereby driving the feeding and realizing continuous pin trimming.
[0037] In addition, a discharge support column 7 is installed on the workbench 1 below the material handling mechanism 5. The discharge support column 7 is inclined and a discharge chute 8 is installed. A collection box 9 is set at the bottom of the discharge chute 8 on the workbench 1.
[0038] In this embodiment, by providing an inclined unloading chute 8 on the unloading support column 7, the material handling mechanism 5 can easily place the diodes into the unloading chute 8, and the trimmed diodes can easily slide down the chute 8 into the collection box 9 for collection.
[0039] It should be noted that several sets of casters 10 are provided around the bottom of the workbench 1, and threaded feet 11 are installed on one side of the casters 10 on the workbench 1.
[0040] In this embodiment, casters 10 are provided at the bottom of the workbench 1 to facilitate the movement and handling of the equipment. Threaded feet 11 are provided to support the equipment by rotating them, ensuring the stability of the equipment during operation.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A continuous diode pin trimming device, characterized in that: The device includes a workbench (1), a feeding plate (2) is mounted on the top of the workbench (1), a pin pressing mechanism (3) is mounted on one side of the workbench (1) located on the feeding plate (2), a trimming mechanism (4) is mounted on the workbench (1) above the pin pressing mechanism (3), a picking mechanism (5) is mounted on the side of the workbench (1) away from the trimming mechanism (4), and a driving mechanism (6) is mounted on the side of the workbench (1) away from the feeding plate (2).
2. The diode pin continuous trimming device according to claim 1, characterized in that: The pin pressing mechanism (3) includes: a first support platform (31), the bottom of the first support platform (31) is mounted on the workbench (1), a pressure plate (32) is fixedly connected to the top of the first support platform (31), a limit plate (33) is installed on one side of the first support platform (31) and a sliding groove is provided in the pressure plate (32).
3. The diode pin continuous trimming device according to claim 1, characterized in that: The trimming mechanism (4) includes: a second support platform (41), the bottom of which is fixedly mounted on the workbench (1), a mounting base (42) is mounted on the top of the second support platform (41), a trimming cylinder (43) is mounted on the mounting base (42), a fixed seat (44) is fixedly connected to the output end of the trimming cylinder (43), and a blade (45) is mounted on the bottom of the fixed seat (44).
4. The diode pin continuous trimming device according to claim 1, characterized in that: The material handling mechanism (5) includes: a third support platform (51), the bottom of which is mounted on a workbench (1), a material handling cylinder (52) is mounted on the top of the third support platform (51), a connecting plate (53) is mounted on the output end of the material handling cylinder (52), a sliding plate (54) is mounted on the bottom of the connecting plate (53), a clamping cylinder (55) is mounted on one end of the sliding plate (54), and a gripper (56) is mounted on the output end of the clamping cylinder (55).
5. The diode pin continuous trimming device according to claim 1, characterized in that: The driving mechanism (6) includes: a fourth support platform (61), the bottom of which is fixedly installed on the workbench (1), a drive motor (62) is installed at the top of the fourth support platform (61), and a discharge chuck (63) is fixedly connected to the output end of the drive motor (62), with several sets of protruding posts around the discharge chuck (63).
6. The diode pin continuous trimming device according to claim 1, characterized in that: The workbench (1) is located below the material handling mechanism (5) and is equipped with a material unloading support column (7). The material unloading support column (7) is inclinedly equipped with a material unloading chute (8). The workbench (1) is located at the bottom of the material unloading chute (8) and is equipped with a material collection box (9).
7. The diode pin continuous trimming device according to claim 1, characterized in that: The bottom of the workbench (1) is provided with several sets of casters (10), and the workbench (1) is provided with threaded feet (11) on one side of the casters (10).