A punching device for diaper production and processing
By designing slots, clips, and locking pins in the diaper production punching device, the problem of inconvenient punching plate replacement was solved, enabling quick assembly and disassembly, and improving production efficiency and flexibility.
Patent Information
- Application Number
- CN202522334904.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-04
AI Technical Summary
The existing perforation plate replacement in diaper production perforation equipment is inconvenient, affecting production flexibility and efficiency.
The structure design, which includes slots, clips, grooves, and locking pins, enables quick assembly and disassembly of the perforated plate. The spring force automatically locks the clips and locking pins, simplifying the operation process.
It enables rapid replacement of perforated plates, shortens production line changeover time, and improves production flexibility and efficiency.
Smart Images

Figure CN224940174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of punching device technology, and in particular to a punching device for diaper production and processing. Background Technology
[0002] In the production and processing of diapers, to enhance the product's breathability and prevent stuffiness and dampness during use, perforations are typically made in the non-woven fabric surface or leak-proof edges. This process requires a specialized perforation device, the core component of which is a perforation plate with perforated needles arranged in a specific pattern. The distribution pattern, density, and size of the perforated needles directly determine the shape of the breathable holes on the diaper surface, thus affecting the product's breathability, aesthetics, and comfort.
[0003] As market demand becomes increasingly diversified, diaper manufacturers need to frequently switch production lines for different models and functions. Different products have different requirements for perforation patterns, hole diameters, and hole density, which necessitates that the perforation equipment can flexibly and quickly replace the perforation plates to match them.
[0004] In existing diaper manufacturing punching devices, the punching plate is typically fixed directly to the punching roller or stamping platform using multiple bolts. While this fixing method is secure and reliable, it hinders the quick replacement of the punching plate, impacting production flexibility and efficiency. Therefore, there is an urgent need for a punching device for diaper manufacturing that allows for easy replacement of the punching plate. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a punching device for diaper production and processing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A punching device for diaper manufacturing includes a punching device, a punching assembly on the punching device, a detachable punching plate mounted on the punching assembly, and slots adapted to fit the punching plate on the punching assembly; multiple clips are vertically movably arranged on the punching assembly, and slots are adapted to fit the clips on the punching plate; and a locking pin for locking the clips is movably arranged on the punching plate.
[0008] In addition, a preferred structure is that the stamping assembly has multiple side slots, and the clamps are all adapted to move vertically within the side slots.
[0009] Furthermore, in a preferred configuration, each of the side grooves has a spring cavity, and a first spring is installed outwardly in each spring cavity, with the other end of each first spring connected to a clip.
[0010] In addition, the preferred structure is that the bottom of each of the card pieces is provided with a slope, and the corresponding locking pins on the card pieces are adapted to have locking cavities.
[0011] In addition, a preferred structure is that the perforated plate has multiple adjustment cavities, each of which is fixedly and vertically provided with a guide post, and the locking post is guided to move by the guide post.
[0012] Furthermore, in a preferred configuration, each of the adjustment cavities is equipped with a second spring extending outwards, and the other end of each second spring is connected to a locking pin.
[0013] The beneficial effects of this utility model are as follows: through the cooperation of slots, clips, grooves and locking pins, the perforated plate can be quickly disassembled and assembled. The disassembly and assembly process does not require tools, the operation is simple and efficient, the production line changeover time is shortened, and the production flexibility and efficiency are improved. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a punching device for diaper production and processing proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the stamping assembly and perforated plate proposed in this utility model;
[0016] Figure 3 for Figure 2 A schematic diagram of the exploded structure;
[0017] Figure 4 This is a schematic diagram of the stamping assembly proposed in this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the card proposed in this utility model;
[0019] Figure 6 This is an exploded structural diagram of the hole-punch plate and locking pin proposed in this utility model.
[0020] In the figure: 1. Drilling device, 2. Stamping assembly, 21. Slot, 22. Side groove, 221. Clip, 222. Slope, 223. Locking cavity, 23. Spring cavity, 231. First spring, 3. Drilling plate, 31. Slot, 32. Adjustment cavity, 321. Guide post, 322. Second spring, 33. Locking post. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-6A punching device for diaper manufacturing includes a punching device 1, a punching assembly 2 on the punching device 1, a detachable punching plate 3 mounted on the punching assembly 2, and slots 21 corresponding to the punching plate 3 on the punching assembly 2. Multiple locking pieces 221 are vertically movably arranged on the punching assembly 2, and corresponding slots 31 are provided on the punching plate 3 for each locking piece 221. A locking pin 33 for locking the locking pieces 221 is also movably arranged on the punching plate 3.
[0023] The stamping assembly 2 has multiple side slots 22, and the clips 221 are all adapted to move vertically within the side slots 22.
[0024] Each side groove 22 has a spring cavity 23, and a first spring 231 is installed outward in each spring cavity 23. The other end of each first spring 231 is connected to the clip 221.
[0025] The bottom of each locking component 221 is provided with a slope 222, and each locking component 221 has a corresponding locking cavity 223 adapted to the locking pin 33. The slope 222 allows the locking component 221 to push the locking pin 33 outward when it moves downward.
[0026] The perforated plate 3 has multiple adjustment chambers 32, each with a guide post 321 fixed vertically outward, and the locking post 33 is guided to move by the guide post 321. The guide post 321 guides the locking post 33, thereby improving its stability during movement.
[0027] Each of the adjustment cavities 32 has a second spring 322 installed outward, and the other end of each second spring 322 is connected to the locking pin 33.
[0028] The first spring 231 and the second spring 322 are both high-strength anti-vibration springs in the prior art, ensuring sufficient preload even under extreme vibration environments. Their specific parameters and specifications are all in the prior art and are not part of the technical problems to be solved in this technical solution, so they will not be described in detail.
[0029] In this embodiment, by mounting the perforating plate 3 on the stamping assembly 2, the stamping assembly 2 can drive the perforating plate 3 to perform perforation processing on the diaper. The perforation needles at the bottom of different perforating plates 3 are distributed in different positions; by replacing the perforating plate 3, it can be adapted to different production lines. It is worth noting that the structures protected in this application are all mounting structures for the perforating plate 3; the perforating device 1, the stamping assembly 2, and the specific operating steps and structures are all prior art, and therefore will not be described in detail.
[0030] Furthermore, when the user needs to install the perforated plate 3, he / she only needs to move one end of the perforated plate 3 to the bottom of the clip 221, and then move the perforated plate 3 upward to push the clip 221 upward. At this time, the first spring 231 is stretched, and the perforated plate 3 and the slot 21 are adapted and aligned.
[0031] Next, simply insert the punch plate 3 completely into the slot 21. At this point, the clips 221 are all aligned with the slots 31. Then, the clips 221 will automatically move downwards and reset under the elastic force of the first spring 231 and be locked into the slots 31.
[0032] As the locking piece 221 moves downward, its bottom slope 222 pushes the locking pin 33 outward, stretching the second spring 322. When the locking piece 221 is fully moved to the bottom, the locking pin 33 and the locking cavity 223 are aligned and adapted to each other. At this time, the locking pin 33 can automatically return to the locking cavity 223 by the elastic force of the second spring 322, thereby locking the locking piece 221 and improving the installation stability of the perforated plate 3.
[0033] Furthermore, during the disassembly of the perforated plate 3, simply pull the locking post 33 outward, then use your palm to push the locking piece 221 upward, and finally pull out the perforated plate 3.
[0034] In this utility model, the perforated plate 3 can be quickly disassembled and assembled by the cooperation of the slot 21, the card 221, the card groove 31 and the locking pin 33. The disassembly and assembly process does not require tools, the operation is simple and efficient, the production line changeover time is shortened, and the production flexibility and efficiency are improved.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A punching device for diaper manufacturing, comprising a punching device (1), a stamping assembly (2) disposed on the punching device (1), and a detachable punching plate (3) mounted on the stamping assembly (2), characterized in that, The stamping assembly (2) has a slot (21) adapted to the perforated plate (3); The stamping assembly (2) is vertically movably provided with multiple clips (221), and the corresponding clips (221) on the perforated plate (3) are all adapted to have slots (31), and the perforated plate (3) is movably provided with locking pins (33) for locking the clips (221).
2. The punching device for diaper production and processing according to claim 1, characterized in that, The stamping assembly (2) has multiple side slots (22), and the clips (221) are all adapted to move vertically within the side slots (22).
3. The punching device for diaper production and processing according to claim 2, characterized in that, Each side groove (22) is provided with a spring cavity (23), and a first spring (231) is installed outward in each spring cavity (23), and the other end of the first spring (231) is connected to the clip (221).
4. The punching device for diaper production and processing according to claim 1, characterized in that, The bottom of each of the card pieces (221) is provided with a slope (222), and each of the card pieces (221) is provided with a locking cavity (223) corresponding to the locking pin (33).
5. A punching device for diaper production and processing according to claim 1, characterized in that, The perforated plate (3) has multiple adjustment cavities (32), and each adjustment cavity (32) has a guide post (321) fixed vertically outward, and the locking post (33) is guided to move by the guide post (321).
6. A punching device for diaper production and processing according to claim 5, characterized in that, Each of the adjustment cavities (32) is equipped with a second spring (322) that extends outward, and the other end of each second spring (322) is connected to a locking pin (33).
