Needling plate capable of being quickly disassembled and assembled
The airbag system controlled by the limiting mechanism and solenoid valve solves the problems of cumbersome disassembly and assembly and unstable fixation of the needle-punching plate, realizing rapid disassembly and assembly and stable clamping, thereby improving production efficiency and processing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN BONIDE FABRIC CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-08
AI Technical Summary
The existing needle-punching plates are cumbersome and time-consuming to disassemble and assemble, which affects production efficiency. Furthermore, they are not easy to provide uniform and stable clamping force when fixed, which makes the needle-punching plates prone to displacement during operation, affecting processing accuracy and product quality.
The device employs a limiting mechanism, including an airbag, a limiting plate, and an insert block. External air supply causes the airbag to expand, pushing the insert block into the inner wall of the needle plate for rapid fixation. A solenoid valve controls the airbag's contraction for rapid assembly and disassembly. The connecting frame and solenoid valve provide uniform and reliable clamping force, enabling automated clamping and releasing operations.
It enables quick assembly and disassembly of the needle-punching plate, ensuring stability during operation, reducing the intensity of manual operation, improving the stability and safety of the processing, and enhancing production efficiency and product quality.
Smart Images

Figure CN224212918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of needle plate technology, and in particular to a needle plate that can be quickly disassembled and assembled. Background Technology
[0002] Needle-punched plates are a key basic component in the needle-punching process. They are mainly used in the production and processing of nonwoven fabrics, felts and other materials. When the needle-punching machine is running, they work together with the needles to repeatedly puncture the fiber layer, causing the fibers to entangle and bind together, thereby giving the material specific structural strength, density and performance to meet the needs of different industries.
[0003] The existing needle plate includes a plate body and multiple needles. The plate body has needle holes for the needles to pass through, and the needles are locked in the needle holes. During use, the installation length of the needles on the needle plate is fixed, and the insertion depth of the needles is not easy to adjust, which limits its application range.
[0004] Existing patent (publication number: CN219637463U) discloses a handheld needle plate, including an upper plate body with a handle at the top and a lower plate body at the bottom. Adjustable spacing plates are evenly installed at the bottom of the lower plate body, and the adjustable spacing plates have evenly distributed perforations. This invention features multiple sets of adjustable spacing plates inside the lower plate body. During use, the number of adjustable spacing plates is selected according to the required needle depth, and the plates are of equal thickness. Adjusting the number of plates allows for synchronous adjustment of the needle depth. A clamping mechanism closes the upper and lower plates after adjustment. Rotating a knob rotates the threaded rod, and the threaded sleeve lowers the pressure rod and pressure plate to fix the needle plate assembly and the adjustable spacing plates. The design is simple and convenient to use, allowing for adjustable needle depth to meet different application needs.
[0005] To address the aforementioned issues, existing patents offer solutions. However, the disassembly and assembly of existing needle-punching plates are often cumbersome and time-consuming, leading to increased equipment downtime and reduced production efficiency. Furthermore, they are often difficult to provide uniform and stable clamping force during fixing, making the needle-punching plates prone to displacement during operation, which affects the precision of needle-punching and product quality.
[0006] To address this, a quick-assembly and disassembly needle plate is proposed. Utility Model Content
[0007] The purpose of this invention is to provide a quick-assembly and disassembly needle punch plate, which can solve the problems of existing needle punch plates having cumbersome operation and long time consumption during disassembly and assembly, resulting in increased equipment downtime and affecting production efficiency. Furthermore, when fixed, it is often difficult to provide uniform and stable clamping force, making the needle punch plate prone to displacement during operation, affecting the accuracy of needle punching and product quality.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a quick-assembly and disassembly needle plate, including a mounting frame, a needle plate assembly placed on the top of the mounting frame, fixing plates bolted to the left and right sides of the mounting frame, a connecting frame provided on the top of the fixing plates, a limiting mechanism fixedly connected to the side of the connecting frame near the needle plate assembly, the surface of the limiting mechanism engaging with the inner wall of the needle plate assembly, and a solenoid valve provided on the side of the connecting frame away from the limiting mechanism;
[0009] The limiting mechanism includes an airbag, a limiting plate, and an insert block. The side of the airbag near the connecting frame is fixedly connected to the connecting frame. The side of the airbag near the limiting plate is fixedly connected to the limiting plate. The side of the limiting plate near the insert block is bolted to the insert block. The surface of the insert block is inserted into the inner wall of the needle plate assembly.
[0010] Preferably, the limiting plate is in contact with the needle plate assembly on the side closest to the needle plate assembly, and the inner wall of the needle plate assembly is provided with a slot for use with the insert block.
[0011] Preferably, a fixing block is bolted to the bottom of the connecting frame, and the bottom of the fixing block is bolted to the top of the fixing plate.
[0012] Preferably, a connecting pipe is fixedly connected to the side of the connecting frame near the solenoid valve, and the connecting pipe is fixedly connected to the solenoid valve on the side near the solenoid valve.
[0013] Preferably, an air inlet pipe is provided on the side of the solenoid valve away from the connecting pipe, and a connecting component is fixedly connected to the side of the air inlet pipe away from the solenoid valve.
[0014] Preferably, connecting blocks are bolted to both the front and rear sides of the limiting plate, a mounting plate is bolted to the side of the connecting block away from the limiting plate, and a stabilizing rod is bolted to the left side of the mounting plate.
[0015] Preferably, a stabilizing block is bolted to the top of the fixing plate, an anti-sway component is bolted to the top of the stabilizing block, and the surface of the stabilizing rod is slidably connected to the inner wall of the anti-sway component.
[0016] Preferably, a positioning block is bolted to the top of the mounting bracket, and the front side of the needle plate assembly contacts the rear side of the positioning block.
[0017] Preferably, the inner wall of the mounting bracket is slidably connected to a slider, and a limit block is bolted to the top of the slider. The side of the limit block near the needle plate assembly is in contact with the needle plate assembly.
[0018] Preferably, a knob is movably connected to the inner wall of the mounting bracket, and the surface of the knob is threadedly connected to the inner wall of the slider.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. This application sets up a limiting mechanism so that when the external air supply equipment supplies air, the air will enter the interior of the airbag through the connecting frame, causing the airbag to expand and push the limiting plate and the insert block into the inner wall of the needle plate assembly, thereby achieving quick snap-fit and fixing, ensuring that the needle plate assembly remains stable during operation and preventing displacement. When deflating, the airbag is controlled to contract by the solenoid valve, and the insert block can easily detach from the inner wall of the needle plate assembly, thereby achieving quick disassembly and assembly of the needle plate assembly.
[0021] 2. This application, by setting up a connecting frame and a solenoid valve, fixes the connecting frame in place by fixing the plate and mounting bracket during use, which facilitates stable air intake of the connecting frame. At the same time, multiple limiting mechanisms provide uniform and reliable clamping force, ensuring that the needle-punching plate assembly is balanced after installation and guaranteeing the stability of the needle-punching process. In addition, the control setting of the solenoid valve can realize automated clamping and releasing operations, reduce the intensity of manual operation, and improve the safety and convenience of operation. Attached Figure Description
[0022] Figure 1 This is an overall structural diagram of the quick-assembly and disassembly needle plate of this utility model;
[0023] Figure 2 This is a structural diagram of the fixing plate of this utility model;
[0024] Figure 3 This is a structural diagram of the limiting mechanism of this utility model;
[0025] Figure 4 This is a structural diagram of the anti-sway component of this utility model;
[0026] Figure 5 This is a structural diagram of the needle-punching plate assembly of this utility model;
[0027] Figure 6 This is a structural diagram of the slider of this utility model;
[0028] Figure 7 This is a structural diagram of the limiting block of this utility model.
[0029] In the diagram, 1. Mounting bracket; 2. Limiting mechanism; 201. Airbag; 202. Limiting plate; 203. Insert block; 3. Needle plate assembly; 4. Fixing plate; 5. Connecting frame; 6. Solenoid valve; 7. Slot; 8. Fixing block; 9. Connecting pipe; 10. Air inlet pipe; 11. Connecting assembly; 12. Connecting block; 13. Mounting plate; 14. Stabilizing rod; 15. Stabilizing block; 16. Anti-sway assembly; 17. Positioning block; 18. Slider; 19. Limiting block; 20. Knob. Detailed Implementation
[0030] 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.
[0031] Please see Figure 1-7 The present invention provides the following technical solution:
[0032] A quick-assembly and disassembly needle plate includes a mounting frame 1, a needle plate assembly 3 is placed on the top of the mounting frame 1, a fixing plate 4 is bolted to the left and right sides of the mounting frame 1, a connecting frame 5 is provided on the top of the fixing plate 4, a limiting mechanism 2 is fixedly connected to the side of the connecting frame 5 near the needle plate assembly 3, the surface of the limiting mechanism 2 is engaged with the inner wall of the needle plate assembly 3, and a solenoid valve 6 is provided on the side of the connecting frame 5 away from the limiting mechanism 2.
[0033] The limiting mechanism 2 includes an airbag 201, a limiting plate 202, and an insert block 203. The side of the airbag 201 closest to the connecting frame 5 is fixedly connected to the connecting frame 5. The side of the airbag 201 closest to the limiting plate 202 is fixedly connected to the limiting plate 202. The side of the limiting plate 202 closest to the insert block 203 is bolted to the insert block 203. The surface of the insert block 203 is inserted into the inner wall of the needle plate assembly 3.
[0034] In this embodiment: By setting a limiting mechanism 2, when the external air supply device supplies air, the air will enter the interior of the airbag 201 through the connecting frame 5, causing the airbag 201 to expand and push the limiting plate 202 and the insert block 203 into the inner wall of the needle plate assembly 3, achieving quick snap-fit fixation and ensuring that the needle plate assembly 3 remains stable during operation and avoids displacement. When releasing air, the airbag 201 is controlled to contract by the solenoid valve 6, and the insert block 203 can easily detach from the inner wall of the needle plate assembly 3, realizing quick assembly and disassembly of the needle plate assembly 3. By setting the connecting frame 5 and the solenoid valve 6, the position of the fixing plate 4 and the mounting frame 1 is fixed during use, which facilitates the subsequent stable air intake of the connecting frame 5. At the same time, multiple sets of limiting mechanisms 2 simultaneously limit the movement, providing uniform and reliable clamping force, so that the needle plate assembly 3 is subjected to force balance after installation, ensuring the stability of the needle punching process. At the same time, the control setting of the solenoid valve 6 can realize automated clamping and releasing operations, reduce the intensity of manual operation, and improve the safety and convenience of operation.
[0035] Specifically, such as Figure 3 , Figure 5 As shown, the side of the limiting plate 202 near the needle plate assembly 3 is in contact with the needle plate assembly 3, and the inner wall of the needle plate assembly 3 is provided with a slot 7 for use with the insert block 203.
[0036] Specifically, such as Figure 3 As shown, a fixing block 8 is bolted to the bottom of the connecting frame 5, and the bottom of the fixing block 8 is bolted to the top of the fixing plate 4.
[0037] Specifically, such as Figure 3 As shown, a connecting pipe 9 is fixedly connected to the side of the connecting frame 5 near the solenoid valve 6, and the side of the connecting pipe 9 near the solenoid valve 6 is fixedly connected to the solenoid valve 6.
[0038] In this embodiment: the limiting plate 202 contacts the needle plate assembly 3, which facilitates the increase of the stability of the needle plate assembly 3 during installation. The slot 7 opened in the inner wall of the needle plate assembly 3 facilitates the insertion block 203 to be inserted into the inner wall of the needle plate assembly 3 through the slot 7. By setting the fixing block 8, the position of the fixing block 8 and the fixing plate 4 is fixed during use, which improves the installation stability of the connecting frame 5 and ensures the stability and reliability of the air intake channel. The fixed connection between the connecting pipe 9 and the solenoid valve 6 ensures the gas transmission path and provides a guarantee for the stable inflation and deflation of the airbag 201.
[0039] Specifically, such as Figure 2 As shown, an air inlet pipe 10 is provided on the side of the solenoid valve 6 away from the connecting pipe 9, and a connecting component 11 is fixedly connected to the side of the air inlet pipe 10 away from the solenoid valve 6.
[0040] Specifically, such as Figure 3 , Figure 4As shown, connecting blocks 12 are bolted to both the front and rear sides of the limiting plate 202. A mounting plate 13 is bolted to the side of the connecting block 12 away from the limiting plate 202. A stabilizing rod 14 is bolted to the left side of the mounting plate 13.
[0041] In this embodiment: the solenoid valve 6 is connected to the connecting component 11 through the air inlet pipe 10 to form a stable air supply path. By setting the connecting block 12, the mounting plate 13 and the stabilizing rod 14, the structural strength and stability of the limiting plate 202 during the movement are enhanced, so as to avoid the limiting plate 202 from deforming or shaking under the push of the airbag 201, and ensure that the insert block 203 is accurately inserted into and detached from the needle plate component 3.
[0042] Specifically, such as Figure 4 As shown, a stabilizing block 15 is bolted to the top of the fixing plate 4, and an anti-sway component 16 is bolted to the top of the stabilizing block 15. The surface of the stabilizing rod 14 is slidably connected to the inner wall of the anti-sway component 16.
[0043] Specifically, such as Figure 2 As shown, a positioning block 17 is bolted to the top of the mounting bracket 1, and the front side of the needle plate assembly 3 contacts the rear side of the positioning block 17.
[0044] Specifically, such as Figure 6 , Figure 7 As shown, a slider 18 is slidably connected to the inner wall of the mounting bracket 1, and a limiting block 19 is bolted to the top of the slider 18. The side of the limiting block 19 closest to the needle plate assembly 3 is in contact with the needle plate assembly 3.
[0045] Specifically, such as Figure 7 As shown, a knob 20 is movably connected to the inner wall of the mounting bracket 1, and the surface of the knob 20 is threadedly connected to the inner wall of the slider 18.
[0046] In this embodiment: the stabilizing block 15 on the top of the fixed plate 4 cooperates with the anti-sway component 16, which facilitates the sliding of the stabilizing rod 14 within the anti-sway component 16, effectively limiting the horizontal sway of the limiting plate 202 and further improving the stability of the limiting mechanism 2 during operation. The positioning block 17 on the top of the mounting frame 1 positions the needle plate assembly 3 to ensure accurate installation. The combination of the slider 18, the limiting block 19, and the knob 20 releases the limit by rotating the knob 20, facilitating the movement of the slider 18 on the inner wall of the mounting frame 1. This can adapt to the installation requirements of needle plate assemblies 3 of different specifications, while further enhancing the overall stability of the needle plate assembly 3 after installation.
[0047] Working Principle: During the use of the mounting frame 1, by setting the limiting mechanism 2, when the external air supply equipment supplies air, the air will enter the interior of the airbag 201 through the connecting frame 5, causing the airbag 201 to expand and push the limiting plate 202 and the insert block 203 into the inner wall of the needle plate assembly 3, achieving quick snap-fit fixation and ensuring that the needle plate assembly 3 remains stable during operation and avoids displacement. When releasing air, the airbag 201 is controlled to contract by the solenoid valve 6, and the insert block 203 can easily detach from the inner wall of the needle plate assembly 3, realizing quick assembly and disassembly of the needle plate assembly 3. By setting the connecting frame 5 and the solenoid valve 6, the position of the fixing plate 4 and the mounting frame 1 is fixed during use, which facilitates the subsequent stable air intake of the connecting frame 5. At the same time, multiple sets of limiting mechanisms 2 simultaneously limit the movement, providing uniform and reliable clamping force, so that the needle plate assembly 3 is subjected to force balance after installation, ensuring the stability of the needle punching process. At the same time, the control setting of the solenoid valve 6 can realize automated clamping and releasing operations, reduce the intensity of manual operation, and improve the safety and convenience of operation.
[0048] The above are merely preferred embodiments of the present utility model and are 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 quick-assembly and disassembly needle plate, comprising a mounting bracket (1), characterized in that: The mounting frame (1) has a needle plate assembly (3) placed on top. Fixing plates (4) are bolted to the left and right sides of the mounting frame (1). A connecting frame (5) is provided on the top of the fixing plate (4). A limiting mechanism (2) is fixedly connected to the side of the connecting frame (5) near the needle plate assembly (3). The surface of the limiting mechanism (2) is engaged with the inner wall of the needle plate assembly (3). A solenoid valve (6) is provided on the side of the connecting frame (5) away from the limiting mechanism (2). The limiting mechanism (2) includes an airbag (201), a limiting plate (202), and an insert (203). The side of the airbag (201) near the connecting frame (5) is fixedly connected to the connecting frame (5). The side of the airbag (201) near the limiting plate (202) is fixedly connected to the limiting plate (202). The side of the limiting plate (202) near the insert (203) is bolted to the insert (203). The surface of the insert (203) is inserted into the inner wall of the needle plate assembly (3).
2. The quick-assembly and disassembly needle plate according to claim 1, characterized in that: The limiting plate (202) is in contact with the needle plate assembly (3) on the side near the needle plate assembly (3), and the inner wall of the needle plate assembly (3) is provided with a slot (7) for use with the insert block (203).
3. The quick-assembly and disassembly needle plate according to claim 1, characterized in that: The bottom of the connecting frame (5) is bolted with a fixing block (8), and the bottom of the fixing block (8) is bolted to the top of the fixing plate (4).
4. The quick-assembly and disassembly needle plate according to claim 1, characterized in that: The connecting frame (5) is fixedly connected to the solenoid valve (6) on the side near the solenoid valve (6), and the connecting pipe (9) is fixedly connected to the solenoid valve (6) on the side near the solenoid valve (6).
5. The quick-assembly and disassembly needle plate according to claim 1, characterized in that: An air inlet pipe (10) is provided on the side of the solenoid valve (6) away from the connecting pipe (9), and a connecting component (11) is fixedly connected to the side of the air inlet pipe (10) away from the solenoid valve (6).
6. The quick-assembly and disassembly needle plate according to claim 1, characterized in that: Connecting blocks (12) are bolted to both the front and rear sides of the limiting plate (202). A mounting plate (13) is bolted to the side of the connecting block (12) away from the limiting plate (202). A stabilizing rod (14) is bolted to the left side of the mounting plate (13).
7. A quick-assembly and disassembly needle plate according to claim 6, characterized in that: A stabilizing block (15) is bolted to the top of the fixing plate (4), and an anti-sway component (16) is bolted to the top of the stabilizing block (15). The surface of the stabilizing rod (14) is slidably connected to the inner wall of the anti-sway component (16).
8. The quick-assembly and disassembly needle plate according to claim 1, characterized in that: A positioning block (17) is bolted to the top of the mounting bracket (1), and the front side of the needle plate assembly (3) contacts the rear side of the positioning block (17).
9. A quick-assembly and disassembly needle plate according to claim 1, characterized in that: The inner wall of the mounting bracket (1) is slidably connected to a slider (18), and a limiting block (19) is bolted to the top of the slider (18). The limiting block (19) is in contact with the needle plate assembly (3) on the side near the needle plate assembly (3).
10. A quick-assembly and disassembly needle plate according to claim 9, characterized in that: A knob (20) is movably connected to the inner wall of the mounting bracket (1), and the surface of the knob (20) is threadedly connected to the inner wall of the slider (18).
Citation Information
Patent Citations
Handheld needling plate
CN219637463U