An insertion pin forming device for manufacturing high-reliability chip capacitors

Abstract

The present invention relates to the technical field related to capacitance shearing, and discloses a pin forming device for manufacturing high-reliability chip capacitors. In the present invention, a discharging push block is arranged above a cutting knife, and a straightening push plate for first straightening the pins on the capacitor element is arranged on the cutting knife. Thus, during the actual cutting process, according to the straightening push plate, it will first press on the pins of the capacitor element, and during the process of the cutting knife approaching the pins of the capacitor element, the straightening push plate moves vertically to sort the pins of the capacitor element downward, so as to ensure that the two pins are relatively parallel to each other. Finally, the cutting knife cuts the sorted pins and the discharging push block pushes the cut capacitor element to the discharging baffle, so as to ensure that the pins of the capacitor element are cut to equal lengths, and finally achieve the purpose of cutting the pins of the capacitor element flush.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitance shearing, and specifically relates to a pin forming device for manufacturing high-reliability chip capacitors. Background Art

[0002] In order to meet the needs of the whole machine of electronic devices to develop towards miniaturization, large capacity, high reliability and low cost, chip capacitors are developing rapidly.

[0003] After the existing chip capacitors are produced, the pins are relatively long. Conventionally, they are mainly cut off directly by a cutting knife. However, in the actual working process, since most of them use a vibrating disk type to sort the chip capacitors, the pins cannot ensure pin consistency after sorting, resulting in inconsistent cutting angles due to pin skew. Seriously, there will also be a phenomenon that the pins are too long or too short after cutting and do not meet the usage requirements. Summary of the Invention

[0004] Aiming at the deficiencies existing in the shearing of the pins of the existing chip capacitors in the background art, the present invention provides a pin forming device for manufacturing high-reliability chip capacitors, which has the advantage of cutting the pins of the capacitor parts flush, and solves the technical problems put forward in the above background art.

[0005] The present invention provides the following technical solutions: A pin forming device for manufacturing high-reliability chip capacitors, including a shearing machine base and a capacitor part. A discharge channel is opened on the inner wall of the shearing machine base. An outlet is opened on one side of the end of the shearing machine base, and a discharge baffle is fixedly installed on the side wall of the shearing machine base and located below the outlet. A discharge port is opened on the side wall of the shearing machine base and located below the outlet. The capacitor part is placed in the discharge channel. An air flow push tube is fixedly installed on one side of the shearing machine base. A cutting cylinder is fixedly installed on the inner wall of the shearing machine base, and a cutting knife that moves towards the discharge port is fixedly installed at the top of the cutting cylinder. A discharge push block is fixedly installed at the top of the cutting knife, and the cross-sectional shape of the discharge push block is L-shaped. A pressing push rod is movably installed at the bottom of the cutting knife, and a pressing push spring located in the inner cavity of the cutting knife is fixedly installed at one end of the pressing push rod. A straightening push plate for combing the bottom pins of the capacitor part is fixedly installed at the top end of the pressing push rod. A taper angle for combing the upper pins of the capacitor part is provided at the end of the straightening push plate.

[0006] Preferably, the central axis of the pressing push rod forms an angle of 40 degrees to 55 degrees with the bottom of the cutting knife.

[0007] Preferably, an auxiliary push plate is movably installed on the side wall of the straightening push plate, and a taper angle is provided at the top of the auxiliary push plate.

[0008] Preferably, alignment magnets for attracting the pins are provided at the bottoms of the alignment push plate and the auxiliary push plate. A return box is fixedly installed on the inner wall of the shearing machine base and is located below the auxiliary push plate, and a return pulling block for attracting the alignment magnets is arranged in the return box.

[0009] Preferably, a rectification sliding groove for the angular movement guiding of the alignment push plate is formed on the inner wall of the shearing machine base. An inclined rectification sliding groove for the angular movement guiding of the auxiliary push plate is formed on the inner wall of the shearing machine base on one side of the rectification sliding groove. The rectification sliding groove forms a 90-degree angle with the bottom of the shearing machine base, and the inclined rectification sliding groove forms an angle of 75 degrees to 90 degrees with the bottom of the shearing machine base.

[0010] Preferably, the return pulling block is movably installed in the return box, and the return pulling block will fall to the bottom of the inner wall of the return box under the action of gravity. The surface shape of the return pulling block is a right trapezoid, and the bottom trapezoid of the return pulling block is away from the cutting cylinder. An enhancement magnet for partially enhancing the magnetic force of the alignment magnet is fixedly installed at the bottom of the auxiliary push plate.

[0011] The present invention has the following beneficial effects:

[0012] 1. In the present invention, a discharging push plate is arranged above the cutting knife, and an alignment push plate for firstly aligning the pins on the capacitor component is arranged on the cutting knife, so as to ensure that during the actual cutting process, according to the alignment push plate, it will firstly press on the pins of the capacitor component, and during the process of the cutting knife approaching the pins of the capacitor component, the alignment push plate moves vertically to sort the pins of the capacitor component downward, so as to ensure that the two pins are relatively parallel to each other. Finally, the cutting knife cuts the sorted pins and pushes the cut capacitor component to the discharging baffle through the discharging push plate, so as to ensure the equal-length cutting of the capacitor component pins and finally achieve the purpose of flush-cutting the capacitor component pins.

[0013] 2. In the present invention, an auxiliary push plate is movably installed on the side wall of the alignment push plate, and an alignment magnet is arranged on the auxiliary push plate, so as to ensure that during the cutting process, the auxiliary push plate firstly pre-aligns the pins of the capacitor component, and according to the attraction of the alignment magnet to the pins, the alignment effect of the alignment push plate is enhanced. On the other hand, through the attraction of the alignment magnet to the return pulling block, it is ensured that after the cutting knife returns during cutting, under the magnetic attraction of the alignment magnet, the pressing push rod always presses on the cutting knife, avoiding the phenomenon that the alignment push plate is pushed out by the elastic force of the pressing push spring when the cutting knife returns, so that the sorted pins of the capacitor component are pushed backward and scattered by the alignment push plate, and finally the purposes of pre-alignment, enhancing the alignment strength and stabilizing the return stroke are achieved.

[0014] 3. In the present invention, a skew - rectifying sliding groove for guiding the auxiliary push - plate is provided on the inner wall of the shearing machine base. By setting the surface of the return - stroke pulling block as a right - angled trapezoid, it is ensured that during the cutting process, the auxiliary push - plate will be forced to slide in the skew - rectifying sliding groove, causing the pins on the capacitor component to be deflected. During multiple deflection processes, the phenomenon that the pins of the capacitor component are bent by themselves and then overlap and become straightened is avoided. On the other hand, by straightening the attraction of the magnetic block to the return - stroke pulling block, it is ensured that the pressure - feeding push - rod continuously presses on the cutting knife. At the same time, since the return - stroke pulling block is a right - angled trapezoid, the straightening magnetic block will continuously move the auxiliary push - plate closer to the straightening push - plate during the attraction process, so that the auxiliary push - plate can be restored to comb the pins on the capacitor component again. And after the straightening magnetic block disengages from the return - stroke pulling block, due to the small relative area between the straightening magnetic block and one side of the return - stroke pulling block, the phenomenon that the auxiliary push - plate attracts the return - stroke pulling block when it is pushed out again is also avoided, ultimately achieving the purpose of increasing various straightening methods and enhancing the stability of the return stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall external structure of the present invention;

[0016] Figure 2 Schematic diagram of the internal assembly structure of the cutting knife of the present invention;

[0017] Figure 3 Schematic diagram of the overall top - view structure of the present invention;

[0018] Figure 4 For the present invention Figure 3 Schematic diagram of the sectional structure at A - A in the present invention;

[0019] Figure 5 For the present invention Figure 3 Schematic diagram of the sectional structure at B - B in the present invention;

[0020] Figure 6 Schematic diagram when the capacitor component is conveyed in the present invention;

[0021] Figure 7 Schematic diagram of the arrangement of the straightening magnetic block in the present invention;

[0022] Figure 8 Schematic diagram of the structure of the return - stroke pulling block in the present invention;

[0023] Figure 9 Schematic diagram of the skew pins of the capacitor component in the present invention;

[0024] Figure 10 Schematic diagram of the bent pins of the capacitor component in the present invention.

[0025] In the figure: 1. Shearing machine base; 2. Discharge port; 3. Discharge baffle; 4. Drainage port; 5. Air flow push tube; 6. Discharge channel; 7. Auxiliary push plate; 8. Return box; 9. Cutting knife; 10. Material cutting cylinder; 11. Unloading push block; 12. Straightening push plate; 13. Capacitor component; 14. Material pressing push spring; 15. Material pressing push rod; 16. Straightening chute; 17. Oblique straightening chute; 18. Straightening magnet; 19. Reinforcing magnet; 20. Return pulling block. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 4 , a pin forming device for manufacturing high-reliability chip capacitors, including a shearing machine base 1 and a capacitor component 13, and a discharge channel 6 for guiding the capacitor component 13 is opened on the inner wall of the shearing machine base 1, and a discharge port 2 communicating with the discharge channel 6 is opened on one side of the end of the shearing machine base 1, and a discharge baffle 3 located below the discharge port 2 is fixedly installed on the side wall of the shearing machine base 1. At the same time, a drainage port 4 located below the discharge port 2 is opened on the side wall of the shearing machine base 1, and the capacitor component 13 is placed in the discharge channel 6. At the same time, an air flow push tube 5 for moving the capacitor component 13 in the discharge channel 6 is fixedly installed on one side of the shearing machine base 1. By blowing air through the air flow push tube 5, the capacitor component 13 can slide in the discharge channel 6, and a material cutting cylinder 10 is fixedly installed on the inner wall of the shearing machine base 1, and a cutting knife 9 moving towards the drainage port 4 is fixedly installed on the top of the material cutting cylinder 10. Thus, the capacitor component 13 sorted in the discharge channel 6 can be punched by the cutting knife 9, and an unloading push block 11 for discharging the punched capacitor component 13 is fixedly installed on the top of the cutting knife 9. The cross-sectional shape of the unloading push block 11 is L-shaped, ensuring that in actual use, according to the punching of the cutting knife 9, the pin waste of the capacitor component 13 in the discharge channel 6 is output from the drainage port 4, and the punched capacitor component 13 is output from the discharge baffle 3. And a material pressing push rod 15 is movably installed at the bottom of the cutting knife 9, and a material pressing push spring 14 located in the inner cavity of the cutting knife 9 is fixedly installed at one end of the material pressing push rod 15. A straightening push plate 12 for combing the bottom pins of the capacitor component 13 is fixedly installed at the top end of the material pressing push rod 15. A taper angle for combing the upper pins of the capacitor component 13 is provided at the end of the straightening push plate 12, ensuring that in actual use, the taper angle first abuts against the inner wall of the shearing machine base 1, so as to strip and comb the pins of the capacitor component 13 through the taper angle, ensuring that the pins will not be skewed. The pin skew is as Figure 9 shown.

[0028] Please refer to Figure 4 , in which, in order to make the alignment push plate 12 press the pins at the bottom of the capacitor component 13 in advance, the central axis of the pressure material push rod 15 forms an angle of 40 degrees to 55 degrees with the bottom of the cutting knife 9, so as to ensure that the alignment push plate 12 will first press and comb the pins of the capacitor component 13 and then cut through the cutting knife 9.

[0029] Please refer to Figure 2 、 Figures 4 - 7 , in which, in order to pre-comb the capacitor component 13, an auxiliary push plate 7 is movably installed on the side wall of the alignment push plate 12, and a taper angle is provided at the top of the auxiliary push plate 7. Thus, during use, since the alignment push plate 12 and the auxiliary push plate 7 are movably installed, the auxiliary push plate 7 and the alignment push plate 12 can move left and right in the horizontal direction. And by the auxiliary push plate 7 following the alignment push plate 12 to press, it is ensured that the auxiliary push plate 7 will first pre-comb the pins of the capacitor component 13, thereby enhancing the combing efficiency of the pins on the capacitor component 13.

[0030] Please refer to Figure 4 、 Figures 6 - 8 , in which, in order to prevent the alignment push plate 12 from pressing the straightened pins again by the elastic force of the pressure material push spring 14 when the cutting knife 9 retracts, causing the pins to be skewed. At the same time, in order to enhance the combing effect on the pins, alignment magnetic blocks 18 for attracting the pins are provided at the bottoms of both the alignment push plate 12 and the auxiliary push plate 7, and a return box 8 located below the auxiliary push plate 7 is fixedly installed on the inner wall of the shearing machine base 1, and a return pull block 20 for attracting the alignment magnetic blocks 18 is provided in the return box 8. Thus, during actual work, due to the attraction of the pins by the magnetic force, the pins will adhere to the alignment magnetic blocks 18, and during the process of both the auxiliary push plate 7 and the alignment push plate 12 moving towards combing, the overall combing effect of the pins at the bottom of the capacitor component 13 will be enhanced.

[0031] Please refer to Figure 4 、 Figure 5 and Figure 7, wherein, in order to prevent the pins on the capacitor component 13 from being bent, so that after being pressed by the taper angle on the auxiliary push plate 7, by directly pressing the bent pins, the taper angle can only comb the bent pins and cannot comb the pins one by one. Therefore, a rectifying chute 16 for guiding the movement of the taper angle on the push plate 12 is provided on the inner wall of the shearing machine base 1, and a slanting chute 17 for guiding the movement of the taper angle on the auxiliary push plate 7 is provided on the inner wall of the shearing machine base 1 on one side of the rectifying chute 16. The rectifying chute 16 forms a 90-degree angle with the bottom of the shearing machine base 1, and the slanting chute 17 forms an angle of 75 to 90 degrees with the bottom of the shearing machine base 1, ensuring that the pins on the auxiliary push plate 7 will shift along with the slanting chute 17, causing the pins at the bottom of the capacitor component 13 to be in an inclined state. When ensuring that the taper angle on the auxiliary push plate 7 starts to comb the pins on the bottom wall of the capacitor component 13 each time, the phenomenon of pin bending is avoided. The bending state is as Figure 10 , thus preventing the phenomenon that the cutting cylinder 10 after bending cannot be combed normally.

[0032] Please refer to Figure 4 , Figure 7 and Figure 8 , wherein, in order to facilitate the auxiliary push plate 7 to fit with the rectifying push plate 12 after sliding through the slanting chute 17, the return pull block 20 is movably installed in the return box 8, and the return pull block 20 will fall to the bottom of the inner wall of the return box 8 due to gravity. The surface shape of the return pull block 20 is a right trapezoid, and the bottom trapezoid of the return pull block 20 is away from the cutting cylinder 10. An enhancing magnet 19 for partially enhancing the magnetic force of the rectifying magnet 18 is fixedly installed at the bottom of the auxiliary push plate 7. Thus, through the intervention of the enhancing magnet 19, it is ensured that the enhancing magnet 19 will attract the return pull block 20, and during the relative movement of the return pull block 20 and the enhancing magnet 19, the surface of the return pull block 20 will continuously decrease, causing the enhancing magnet 19 to move in the direction of continuously increasing the relative area with the return pull block 20, that is, moving in the direction of resetting and fitting the auxiliary push plate 7 and the rectifying push plate 12, ensuring that the auxiliary push plate 7 can slide repeatedly in the slanting chute 17.

[0033] The working principle of the present invention is as follows: When in use, the capacitor components 13 are sorted in the discharge channel 6 through the vibrating sieve plate (not shown in the figure), and according to the air flow blown out by the vibrating sieve plate and the air flow push tube 5, the capacitor components 13 in the discharge channel 6 continuously move towards the discharge port 2.

[0034] By injecting air flow into the cutting cylinder 10, it will force the cutting knife 9 to impact forward. During the movement, the pressing push rod 15 will push forward synchronously, straightening the leads pressed by the push plate 12 at the bottom of the capacitor component 13. At this time, the magnetic block on the straightening push plate 12 adsorbs the leads, making the leads of the capacitor component 13 adhere to the straightening magnetic block 18. When the cutting knife 9 continues to push forward, the straightening push plate 12 scrapes downward through the straightening chute 16, and the leads adsorbed on the straightening magnetic block 18 are continuously pushed by the straightening push plate 12 to be vertically arranged, ensuring that the leads at the bottom of the capacitor component 13 are relatively parallel. At the same time, the leads of the capacitor component 13 on one side of the auxiliary push plate 7 are placed between the taper angles on the auxiliary push plate 7 and move along the inclined straightening chute 17 according to the taper angles on the auxiliary push plate 7, forcing the leads at the bottom of the capacitor component 13 to be combed relatively to the right side. The direction reference Figure 5 , ensuring that while pre-combing the capacitor component 13, the leads are also combed to the right side. When the leads of the capacitor component 13 are bent, since the taper angles simultaneously press the folded leads, as Figure 10 shown, even if the magnetic force on the straightening magnetic block 18 attracts the leads, it still cannot comb the leads. After the leads of the capacitor component 13 are combed to the right side, when the capacitor component 13 moves forward again, the auxiliary push plate 7 for the next combing will press on the leads of the capacitor component 13. Since the leads at the bottom of the capacitor component 13 were offset in the previous step, when pressing again at this time, only one lead will be pressed, thus ensuring that the auxiliary push plate 7 presses a single lead for combing, and through the Figure 9 leads shown in are combed synchronously, ensuring that the auxiliary push plate 7 pre-combs the leads first. During the combing, when the auxiliary push plate 7 moves along the inclined straightening chute 17, it will cause the auxiliary push plate 7 to move away from the straightening push plate 12.

[0035] As the cutting knife 9 continues to press forward, it causes the cutting knife 9 to continuously approach the direction of the discharge port 4, resulting in the pins at the bottom of the capacitor component 13 being cut off. At this time, the alignment push plate 12 is located below the cutting knife 9. Meanwhile, the cut pins will slide out from the discharge port 4. When the cutting knife 9 continues to move forward, the unloading push block 11 will push the capacitor component 13 outwards to the discharge port 2 and slide out from the discharge baffle 3. At this time, the auxiliary push plate 7 moves down to the lowest limit position, and under the magnetic attraction of the alignment magnet 18 and the enhanced magnet 19, the return pull block 20 is lifted from the return box 8. Then, the cutting knife 9 is retracted by the cutting cylinder 10. At this time, due to the attraction of the alignment magnet 18 and the enhanced magnet 19 to the return pull block 20, the pressing push rod 15 continuously presses the pressing push spring 14 and returns synchronously with the cutting knife 9. During the return process, the relative area between the alignment magnet 18 and the enhanced magnet 19 will relatively decrease. Due to the magnetic force of the enhanced magnet 19, it will force the movement towards the trend of increasing the relative area with the return pull block 20, that is, it makes the auxiliary push plate 7 tend to move into the alignment push plate 12, ensuring that the auxiliary push plate 7 and the alignment push plate 12 fit together again to ensure the next combing of the pins of the capacitor component 13. Finally, after the alignment magnet 18 and the enhanced magnet 19 pass over the return pull block 20, due to the gravity of the return pull block 20 itself, it will fall in the return box 8, and under the elastic force of the pressing push spring 14, the pressing push rod 15 is pushed out. When the auxiliary push plate 7 passes by the return pull block 20, due to the decrease in the relative area between the enhanced magnet 19 and the return pull block 20 and the increase in the distance between them, the auxiliary push plate 7 will directly pass over the return pull block 20, and the auxiliary push plate 7 is lifted by the pressing push spring 14. Then, since the capacitor component 13 at the end of the discharge channel 6 is pushed out, the capacitor component 13 will continue to move forward. According to the above method, it is repeated continuously, so as to continuously cut off the pins of the capacitor component 13.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inserting pin forming device for manufacturing a highly reliable chip capacitor, comprising a shearing machine base (1) and a capacitor component (13), characterized in that: The inner wall of the shearing machine base (1) is provided with a discharge channel (6). One side of the end of the shearing machine base (1) is provided with a discharge port (2), and a discharge baffle (3) is fixedly installed on the side wall of the shearing machine base (1) and is located below the discharge port (2). A discharge port (4) is provided on the side wall of the shearing machine base (1) and is located below the discharge port (2). The capacitor component (13) is placed in the discharge channel (6). An air flow push pipe (5) is fixedly installed on one side of the shearing machine base (1). A cutting cylinder (10) is fixedly installed on the inner wall of the shearing machine base (1), and a cutter (9) that moves towards the discharge port (4) is fixedly installed at the top of the cutting cylinder (10). A discharge push block (11) is fixedly installed at the top of the cutter (9), and the cross-sectional shape of the discharge push block (11) is L-shaped. A pressure material push rod (15) is movably installed at the bottom of the cutter (9), and a pressure material push spring (14) located in the inner cavity of the cutter (9) is fixedly installed at one end of the pressure material push rod (15). A straightening push plate (12) for combing the bottom pins of the capacitor component (13) is fixedly installed at the top end of the pressure material push rod (15). The end of the straightening push plate (12) is provided with a taper angle for combing the upper pins of the capacitor component (13). An auxiliary push plate (7) is movably installed on the side wall of the straightening push plate (12), and the top of the auxiliary push plate (7) is provided with a taper angle. Straightening magnetic blocks (18) for attracting the pins are provided at the bottoms of both the straightening push plate (12) and the auxiliary push plate (7). A return box (8) is fixedly installed on the inner wall of the shearing machine base (1) and is located below the auxiliary push plate (7), and a return pull block (20) for attracting the straightening magnetic block (18) is provided in the return box (8).

2. The inserting pin forming device for manufacturing a highly reliable chip capacitor according to claim 1, characterized in that: The central axis of the pressure material push rod (15) forms an angle of 40 degrees to 55 degrees with the bottom of the cutter (9).

3. The inserting pin forming device for manufacturing a highly reliable chip capacitor according to claim 1, characterized in that: A straightening chute (16) for guiding the movement of the taper angle on the straightening push plate (12) is provided on the inner wall of the shearing machine base (1). A slanting chute (17) for guiding the movement of the taper angle on the auxiliary push plate (7) is provided on the inner wall of the shearing machine base (1) and is located on one side of the straightening chute (16). The straightening chute (16) forms a 90-degree angle with the bottom of the shearing machine base (1), and the slanting chute (17) forms an angle of 75 degrees to 90 degrees with the bottom of the shearing machine base (1).

4. The inserting pin forming device for manufacturing a highly reliable chip capacitor according to claim 1 or 3, characterized in that: The return pull block (20) is movably installed in the return box (8), and the return pull block (20) will fall to the inner wall bottom of the return box (8) under the action of gravity. The surface shape of the return pull block (20) is a right trapezoid, and the bottom trapezoid of the return pull block (20) is away from the cutting cylinder (10). An enhancing magnetic block (19) for partially enhancing the magnetic force of the straightening magnetic block (18) is fixedly installed at the bottom of the auxiliary push plate (7).

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