A punch for a tip protector cap

Abstract

The utility model belongs to the technical field of plastic end protection cap punching, specifically relates to an end protection cap puncher, including base, the base is fixedly installed with mounting seat, the mounting seat is fixed with the vertical installation first air cylinder, the output of first air cylinder is fixedly installed with punch, the lower portion of first air cylinder is equipped with the horizontal setting core shaft, the inner hole of core shaft is matched with end protection cap, the vertical punch is equipped with the perforation on the core shaft, the perforation is matched with punch still be equipped with feeding mechanism on base, and feeding mechanism includes thimble, and the end of thimble is abutted with the end surface of end protection cap and promotes end protection cap to be set on the core shaft.

Description

Technical Field

[0001] This utility model belongs to the field of plastic end cap punching technology, specifically relating to an end cap punching machine. Background Technology

[0002] In the industrial manufacturing sector, plastic end caps are widely used as protective components for wire harnesses, pipe fittings, or shaft parts. These end caps typically require through holes in their side walls to meet functional requirements such as ventilation, cable routing, or accessory installation. In traditional manufacturing processes, the end caps are usually manually held and fitted onto a simple fixture, and then punched in a single pass using a stamping machine operated by an operator.

[0003] This method has significant drawbacks. First, manual loading and unloading is inefficient and cannot meet the needs of mass production. Second, operators must repeatedly perform picking and placing actions, resulting in high labor intensity and potential fatigue that can lead to fluctuations in yield. Third, there are significant safety hazards; close-range operation during high-speed stamping processes poses a risk of mechanical injury to operators. Therefore, it is necessary to improve the existing technology to address these technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a punching machine for end cap protection to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0006] A punching machine for end caps includes a base, a mounting seat fixedly mounted on the base, a vertically mounted first cylinder fixedly mounted on the mounting seat, a punch fixedly mounted on the output end of the first cylinder, a horizontally positioned spindle below the first cylinder, the spindle engaging with the inner hole of the end cap, and a vertical punch through the spindle engaging with the punch.

[0007] The base is also equipped with a feeding mechanism, which includes a ejector pin. One end of the ejector pin abuts against the end face of the end cap and pushes the end cap to fit onto the spindle.

[0008] As a further improvement, the feeding mechanism also includes a main body, which is fixedly connected to the base. A turntable is rotatably provided inside the main body. The circumferential sidewall of the turntable is provided with a feeding groove parallel to the axial direction. The end protective cap is located in the space enclosed by the feeding groove and the inner wall of the main body. When the turntable rotates, the end protective cap located in different feeding grooves alternately cooperates with the spindle.

[0009] The top of the main body is equipped with a feeding port, which corresponds to the feeding trough.

[0010] As a further improvement, a guide post is fixedly provided at the end of the turntable away from the spindle. The circumferential sidewalls at both ends of the guide post expand radially outward to form positioning bosses. Multiple positioning sliding holes are provided through the two positioning bosses. The multiple positioning sliding holes are evenly distributed along the circumferential direction. The positioning sliding holes correspond one-to-one with the feeding groove, and the axis of the positioning sliding hole coincides with the axis of the feeding groove.

[0011] As a further improvement, one end of the ejector pin slides into the feeding trough, a cam block is fixed on the base, and the other end of the ejector pin engages with the cam block.

[0012] As a further improvement, a protruding limiting block is fixed on the circumferential side wall of the ejector pin. The limiting block is located between two positioning bosses. A compression spring is sleeved on the outside of the ejector pin. One end of the compression spring abuts against the limiting block, and the other end of the compression spring abuts against the positioning boss near the turntable.

[0013] As a further improvement, a rotating shaft is coaxially fixed at the end of the guide column away from the turntable, and a first pulley is fixedly connected to one end of the rotating shaft. A drive motor is fixedly mounted on the base, and a second pulley is fixedly connected to the output end of the drive motor. The first pulley and the second pulley are connected by a synchronous belt.

[0014] As a further improvement, a baffle is fixedly provided on the base, the spindle passes through the baffle and is slidably connected to the baffle, the end of the spindle that cooperates with the end protective cap has a rounded corner structure, a second cylinder is fixedly provided on the base, and the output end of the second cylinder is fixedly connected to the other end of the spindle.

[0015] As a further improvement, a discharge hole is provided through the base, and the position of the discharge hole corresponds to the end of the mandrel away from the second cylinder.

[0016] Due to the adoption of the above technical solution, the beneficial technical effects of this utility model are as follows:

[0017] This utility model provides a punching machine for end caps. By setting up a vertically positioned first cylinder and punch, combined with a horizontally positioned mandrel with punching holes, a stable punching effect is achieved. The mandrel is directly inserted into the inner hole of the end cap for support and positioning, effectively resisting the radial force generated when the punch strikes downwards.

[0018] By setting up a feeding mechanism that includes ejector pins, the steps of manually putting the end caps onto the mandrel and removing them from the mandrel are eliminated, which not only improves the efficiency of feeding and unloading, but also reduces the labor intensity of the operator.

[0019] By employing a drive method that combines a cam block with an ejector pin, and utilizing the cam profile curve, the timing, speed, and stroke of the ejector pin's advance and retraction can be precisely designed and controlled. This ensures a strict and reliable mechanical linkage between the ejector pin and the rotation and stamping action of the turntable, guaranteeing the coordination of the entire work cycle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram and a partial enlarged view of the fit between the punch and the mandrel of this utility model;

[0022] Figure 3 This is a schematic diagram of the external structure of the feeding mechanism of this utility model;

[0023] Figure 4 This is an assembly diagram of the feeding mechanism and the mandrel of this utility model.

[0024] Wherein: 1-base, 101-discharge hole, 2-mounting seat, 3-first cylinder, 301-punch, 4-second cylinder, 401-mandrel, 402-punch, 5-feeding mechanism, 501-main body, 502-ejector, 5021-limit block, 503-turntable, 504-feeding groove, 505-feeding port, 506-guide column, 5061-positioning boss, 5062-positioning sliding hole, 507-cam block, 508-compression spring, 509-rotating shaft, 510-drive motor, 6-baffle, 7-end protective cap. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments and accompanying drawings. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual physical objects, and should not be construed as limiting the scope of this application. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] like Figure 1-4 As shown, a punching machine for end caps includes a base 1, a mounting seat 2 fixedly mounted on the base 1, a vertically mounted first cylinder 3 fixedly mounted on the mounting seat 2, a punch 301 fixedly mounted at the output end of the first cylinder 3, and a horizontally positioned spindle 401 below the first cylinder 3. The spindle 401 mates with the inner hole of the end cap 7, and a vertical punch 402 is provided through the spindle 401, which mates with the punch 301. The punched waste is temporarily stored in the punch 402. When the end cap 7 separates from the spindle 401, the waste falls under the influence of gravity.

[0028] The base 1 is also provided with a feeding mechanism 5, which includes a push pin 502. One end of the push pin 502 abuts against the end face of the end protective cap 7 and pushes the end protective cap 7 to be sleeved on the spindle 401.

[0029] In use, the ejector pin 502 pushes the end cap 7 to move axially, and the inner hole of the end cap 7 fits onto the mandrel 401, which provides force support for the end cap 7. The first cylinder 3 drives the punch 301 to press down and insert into the punch hole 402 of the mandrel 401, completing the drilling of the side wall of the end cap 7.

[0030] In this embodiment, the feeding mechanism 5 further includes a main body 501, which is fixedly connected to the base 1. A turntable 503 is rotatably mounted inside the main body 501. The circumferential sidewall of the turntable 503 is provided with a feeding groove 504 parallel to the axial direction. The end protective cap 7 is located in the space enclosed by the feeding groove 504 and the inner wall of the main body 501. When the turntable 503 rotates, the end protective cap 7 located in different feeding grooves 504 alternately engages with the spindle 401. The top of the main body 501 is provided with a feeding port 505, which corresponds to the feeding groove 504.

[0031] In this embodiment, a vibratory feeder can be used in conjunction with a vibratory feeder. The vibratory feeder continuously feeds the end protective caps 7 to be drilled into the feeding trough 504 through the feeding port 505. The turntable 503 rotates to the target position, aligning the axis of the feeding trough 504 with the axis of the mandrel 401. In this embodiment, the vibratory feeder is a conventional technology in the prior art, and its structure will not be described in detail.

[0032] In this embodiment, a guide post 506 is fixedly provided at one end of the turntable 503 away from the spindle 401. The circumferential sidewalls at both ends of the guide post 506 expand radially outward to form positioning bosses 5061. Multiple positioning sliding holes 5062 are provided through the two positioning bosses 5061. The multiple positioning sliding holes 5062 are evenly distributed along the circumferential direction. The positioning sliding holes 5062 correspond one-to-one with the feeding groove 504, and the axis of the positioning sliding hole 5062 coincides with the axis of the feeding groove 504.

[0033] The positioning slide hole 5062 is used to guide the linear movement of the ejector pin 502 to ensure accurate material feeding trajectory. The ejector pin 502 passes through the positioning slide hole 5062 and enters the feeding groove 504, pushing the end protective cap 7 to move towards the spindle 401.

[0034] In this embodiment, one end of the ejector pin 502 is slidably engaged with the feeding groove 504, and a cam block 507 is fixedly provided on the base 1. The other end of the ejector pin 502 is engaged with the cam block 507.

[0035] The cam block 507 is used to convert the rotational motion of the turntable 503 into the linear reciprocating motion of the ejector pin 502. Specifically, when the turntable 503 rotates, the end of the ejector pin 502 near the cam block 507 slides along the contour of the cam block 507, driving the ejector pin 502 to move axially along the positioning slide hole 5062.

[0036] By employing a drive mechanism that coordinates the cam block 507 with the ejector pin 502, the rotational motion of the turntable 503 is precisely converted into the linear motion of the ejector pin 502. Utilizing the contour curve of the cam block 507, the timing, speed, and stroke of the ejector pin 502's advance and retraction can be precisely designed and controlled, ensuring a strict and reliable mechanical linkage between the ejector pin 502 and the rotation and drilling action of the turntable 503, thus guaranteeing the coordination of the entire work cycle.

[0037] In this embodiment, a protruding limiting block 5021 is fixed on the circumferential sidewall of the ejector pin 502. The limiting block 5021 is located between two positioning bosses 5061. A compression spring 508 is sleeved on the outside of the ejector pin 502. One end of the compression spring 508 abuts against the limiting block 5021, and the other end of the compression spring 508 abuts against the positioning boss 5061 near the turntable 503.

[0038] Compression spring 508 provides the reset force for ejector pin 502, ensuring continuous contact with cam block 507. The outer diameter of limit block 5021 is larger than the inner diameter of positioning slide hole 5062; therefore, limit block 5021 restricts the travel of ejector pin 502, preventing it from sliding out of positioning slide hole 5062. When ejector pin 502 pushes end cap 7, compression spring 508 is compressed, converting kinetic energy into elasticity. After cam block 507 releases pressure, compression spring 508 pushes ejector pin 502 to reset.

[0039] In this embodiment, a rotating shaft 509 is coaxially fixed at one end of the guide post 506 away from the turntable 503. A first pulley is fixedly connected to one end of the rotating shaft 509. A drive motor 510 is fixedly installed on the base 1. A second pulley is fixedly connected to the output end of the drive motor 510. The first pulley and the second pulley are connected by a synchronous belt.

[0040] The drive motor 510 drives the rotating shaft 509 to rotate via a synchronous belt, which in turn drives the turntable 503 to rotate, thus achieving continuous feeding.

[0041] In this embodiment, a baffle 6 is fixedly provided on the base 1, and a spindle 401 passes through the baffle 6 and is slidably connected to the baffle 6. The end of the spindle 401 that cooperates with the end protective cap 7 has a rounded corner structure, which facilitates the smooth fitting of the protective cap onto the spindle 401. A second cylinder 4 is fixedly provided on the base 1, and the output end of the second cylinder 4 is fixedly connected to the other end of the spindle 401.

[0042] By precisely controlling the distance between the baffle 6 and the punch 402, the baffle 6 can act as a positioning structure to precisely control the punching position of the end cap 7. The baffle 6 not only provides support for the mandrel 401, effectively resisting the radial force generated when the punch 301 strikes downwards, but also guides the mandrel 401 to prevent it from wobbling. Furthermore, after punching is completed, the second cylinder 4 retracts, driving the mandrel 401 backwards. During this process, the baffle 6 also prevents the end cap 7 from moving, thereby disengaging the mandrel 401 from the end cap 7.

[0043] In this embodiment, a discharge hole 101 is provided through the base 1, and the position of the discharge hole 101 corresponds to the end of the mandrel 401 that is away from the second cylinder 4. In use, a material box for collecting the end protective cap 7 is placed below the discharge hole 101. After the end protective cap 7 falls off the mandrel 401, it falls into the material box through the discharge hole 101.

[0044] In this embodiment, the end cap 7 is conveyed by the vibratory feeder and enters the feeding groove 504 on the circumference of the turntable 503. Each feeding groove 504 and the inner wall of the main body 501 together form a chamber to accommodate a single end cap 7. The drive motor 510 drives the first pulley to rotate via a synchronous belt, which in turn drives the guide column 506, which is coaxially fixed with the turntable 503, to rotate. When the turntable 503 rotates to a specific position, the axis of the feeding groove 504 is precisely aligned with the axis of the spindle 401 on the base 1. At this time, the cam block 507 fixed to the base 1 pushes the ejector pin 502 to slide along the positioning slide hole 5062 toward the turntable 503, and the compression spring 508 accumulates elastic potential energy between the limit block 5021 and the positioning boss 5061. The end of the ejector pin 502 near the end protective cap 7 passes through the feeding groove 504 and pushes the end protective cap 7 away from the turntable 503, so that it is precisely fitted into the rounded end of the mandrel 401.

[0045] Driven by the second cylinder 4, the mandrel 401 moves horizontally towards the baffle 6, causing the inner hole of the end cap 7 to mate with the outer wall of the mandrel 401. Simultaneously, the first cylinder 3 pushes the punch 301 vertically downwards, penetrating the side wall of the end cap 7 and inserting it into the vertical punch hole 402 of the mandrel 401, completing the precise punching operation 402. After punching 402 is completed, the first cylinder 3 resets, and the second cylinder 4 pulls the mandrel 401 back to its initial position. At this point, the end cap 7, having lost its support, falls into the material box through the discharge hole 101 on the base 1. Simultaneously, the cam block 507 releases its constraint on the ejector pin 502, the compression spring 508 releases energy to push the limit block 5021 back to its original position, and the ejector pin 502 retracts into the positioning slide hole 5062 to prepare for the next feeding cycle. The turntable 503 rotates to the next station under the drive of the drive motor 510, and the new end protective cap 7 enters the feeding trough 504 to wait for pushing, thus forming a continuous cycle operation.

[0046] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A splicing cap puncher comprising a base, characterized in that, The base is fixedly provided with a mounting seat, a first cylinder is vertically arranged on the mounting seat, a punch is fixedly arranged on the output end of the first cylinder, a core shaft is horizontally arranged below the first cylinder, the core shaft is matched with the inner hole of the end cap, a vertical punch hole is arranged through the core shaft, and the punch hole is matched with the punch; The base is further provided with a feeding mechanism, the feeding mechanism comprises a thimble, one end of the thimble abuts against the end face of the end cap and pushes the end cap to be sleeved on the core shaft.

2. The end cap protector cap puncher of claim 1, wherein, The feeding mechanism further comprises a main body, the main body is fixedly connected with the base, a rotating disc is rotatably arranged in the main body, the circumferential side wall of the rotating disc is provided with a feeding groove parallel to the axial direction, the end cap is located in the space surrounded by the feeding groove and the inner wall of the main body, and when the rotating disc rotates, the end cap located in different feeding grooves is alternately matched with the core shaft. The top of the main body is provided with a feeding port, and the feeding port corresponds to the feeding groove.

3. The end cap protector cap puncher of claim 2, wherein, One end of the rotating disc away from the core shaft is fixedly provided with a guide column, the circumferential side wall of the guide column at both ends expands outward along the radial direction to form a positioning boss, a plurality of positioning sliding holes are arranged through the two positioning bosses, the positioning sliding holes are uniformly distributed along the circumferential direction, the positioning sliding holes correspond to the feeding grooves one by one, and the axis of the positioning sliding hole coincides with the axis of the feeding groove.

4. The end protector cap puncher of claim 3, wherein, One end of the thimble is in sliding connection with the feeding groove, and the base is fixedly provided with a cam block, the other end of the thimble is matched with the cam block.

5. The end cap protector cap puncher of claim 4, wherein, The circumferential side wall of the thimble is fixedly provided with a protruding limiting block, the limiting block is located between the two positioning bosses, a compression spring is sleeved outside the thimble, one end of the compression spring abuts against the limiting block, and the other end of the compression spring abuts against the positioning boss close to the rotating disc.

6. The end cap protector cap puncher of claim 5, wherein, One end of the rotating disc away from the core shaft is fixedly provided with a rotating shaft, one end of the rotating shaft is fixedly connected with a first pulley, the base is fixedly provided with a driving motor, the output end of the driving motor is fixedly connected with a second pulley, and the first pulley and the second pulley are connected through a synchronous belt.

7. The tip protector cap puncher of claim 6, wherein, The base is fixedly provided with a baffle, the core shaft penetrates through the baffle and is in sliding connection with the baffle, one end of the core shaft matched with the end cap is a rounded structure, the base is fixedly provided with a second cylinder, and the other end of the core shaft is fixedly connected with the output end of the second cylinder.

8. The tip protector cap puncher of claim 7, wherein, A discharging hole is arranged through the base, and the position of the discharging hole corresponds to the end of the core shaft away from the second cylinder.

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