Needling device for manufacturing four-side elastic non-woven fabric
The pre-installation mechanism's guiding and snap-fit design solves the problem of needle-punched plates tilting during installation, enabling efficient installation and convenient disassembly of the four-sided elastic nonwoven fabric manufacturing device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-27
AI Technical Summary
During the installation of needle punching devices used in nonwoven fabric manufacturing, the needle punch plate is prone to become misaligned, making it difficult to align the fastening bolts and affecting installation efficiency.
The pre-installed mechanism includes components such as guide rods, locking blocks, and load-bearing springs. The guide rods are inserted into the guide slots for guidance, the locking blocks rotate to engage with the slots, and the spring force pushes the needle plate to achieve precise positioning and convenient disassembly.
It achieves precise positioning and installation of the needle-punch plate, prevents shaking, simplifies the installation process, improves installation efficiency, and facilitates the disassembly and inspection of the needle-punch plate.
Smart Images

Figure CN224047655U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to needle pricking device technical field, concretely is a kind of needle pricking device for four-side elastic nonwoven fabric manufacturing. BACKGROUND
[0002] Nonwoven fabric is by directional or random fibre and constitutes. It is called cloth because of having the appearance and certain performance of cloth. Nonwoven fabric has the characteristics such as moisture-proof, breathable, flexible, light, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low price, recycling and so on, so it is more used in various fields. Needle pricking nonwoven fabric is one of dry method nonwoven fabrics. It is to make short fiber into fiber web by opening, carding and laying, then reinforce the fiber web into cloth by needle pricking device. The needle of needle pricking device has hook, and under the action of control mechanism, the needle plate and the needle at the lower end repeatedly move up and down (flat plate type needle pricking device) to repeatedly pierce the fiber web, hook the fiber to reinforce, and form needle pricking nonwoven fabric.
[0003] The needle pricking device for nonwoven fabric manufacturing will break the needle during use, and then the needle plate needs to be disassembled for detection. The existing needle plate needs to be lifted during installation, and it is easy to be inclined during installation, which makes the installation more inconvenient. Therefore, we need a needle pricking device for four-side elastic nonwoven fabric manufacturing. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a needle pricking device for four-side elastic nonwoven fabric manufacturing to solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a needle pricking device for four-side elastic nonwoven fabric manufacturing, comprising a needle plate arranged on a machine body, a gas cylinder fixedly installed on the machine body, an installation plate fixedly installed on the output end of the gas cylinder, a fastening bolt threadedly connected to the side wall of the installation plate, and a pre-installation mechanism arranged on the needle plate.
[0006] The pre-installation mechanism comprises:
[0007] A rotating rod is arranged on the needle plate for driving the vertical plate to rotate.
[0008] A vertical plate is arranged on the needle plate for mounting the clamping block.
[0009] A clamping block is arranged on the needle plate for clamping.
[0010] Preferably, the inner wall of the needle plate is rotatably connected with a rotating rod, the outer wall of the rotating rod is fixedly installed with a vertical plate, the outer wall of the vertical plate is fixedly installed with a clamping block, the upper end of the clamping block is in arc shape, the arc surface of the clamping block is extruded by the outer wall of the mounting plate, the clamping block drives the vertical plate to rotate around the rotating rod to release the limiting, and the side wall of the mounting plate is provided with a clamping groove above the clamping block.
[0011] Preferably, the outer wall of the rotating rod is fixedly connected with one end of a limiting torsion spring, the other end of the limiting torsion spring is fixedly connected with the inner wall of the needle plate, and the elastic force of the limiting torsion spring can drive the clamping block on the outer wall of the vertical plate to reset and be clamped into the clamping groove.
[0012] Preferably, the inner wall of the mounting plate is slidably connected with a guide rod, the outer wall of the guide rod is fixedly connected with one end of a bearing spring, the other end of the bearing spring is fixedly connected with the inner wall of the mounting plate, the elastic force of the bearing spring can drive the guide rod to move downward to push the needle plate down, the needle plate is provided with a guide groove, the guide rod is inserted into the guide groove to guide, and deviation in the installation process can be prevented.
[0013] Preferably, the inner wall of the needle plate is rotatably connected with a twisting rod, the twisting rod is provided with a winding rope, the winding rope can be wound by twisting the twisting rod, and the end of the winding rope is fixedly connected with the outer wall of the vertical plate.
[0014] Preferably, the outer wall of the twisting rod is fixedly connected with one end of a reset torsion spring, and the other end of the reset torsion spring is fixedly connected with the inner wall of the needle plate.
[0015] Compared with the prior art, the needle punching device for manufacturing four-way elastic non-woven fabric has the following beneficial effects:
[0016] 1. The needle punching device for manufacturing four-way elastic non-woven fabric, the guide rod in the pre-installation mechanism is inserted into the guide groove to guide, deviation in the installation process can be prevented, the clamping block is reset and clamped into the clamping groove, the needle plate can be pre-installed, and the tightening bolt can be aligned without shaking during installation.
[0017] 2. The needle punching device for manufacturing four-way elastic non-woven fabric, the vertical plate is pulled by the winding rope, the vertical plate drives the clamping block to move out of the clamping groove to release the limiting, the guide rod moves downward to push the needle plate down by the elastic force of the bearing spring, and the needle plate can be conveniently disassembled and detected. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a whole front view structural schematic diagram of the utility model;
[0019] Figure 2 Part structure schematic diagram of the present application;
[0020] Figure 3 Part structure schematic diagram of the present application Figure 2 Amplified schematic diagram of structure A;
[0021] Figure 4 Part structure schematic diagram of the present application Figure 2 Amplified schematic diagram of structure B.
[0022] In the figure: 1, machine body; 2, needling plate; 3, air cylinder; 4, mounting plate; 5, fastening bolt; 6, pre-installation mechanism; 61, rotating rod; 62, vertical plate; 63, clamping block; 64, clamping groove; 65, limit torsional spring; 66, guide rod; 67, bearing spring; 68, guide groove; 69, twisting rod; 610, winding rope; 611, reset torsional spring. DETAILED DESCRIPTION
[0023] As Figures 1-4 shown, the utility model provides a technical scheme: a kind of needle punching device for four-side elastic nonwoven fabric manufacturing, including setting on machine body 1 needle plate 2, machine body 1 is fixedly installed with air cylinder 3, air cylinder 3 output end is fixedly installed with mounting plate 4, the side wall of mounting plate 4 is screw-connected with fastening bolt 5, by screwing fastening bolt 5, needle plate 2 can be fixedly installed on mounting plate 4, pre-installation mechanism 6 is provided on needle plate 2.
[0024] In the embodiment, pre-installation mechanism 6 is provided on needle plate 2, guide rod 66 in pre-installation mechanism 6 is inserted into the inside of guide groove 68 for guidance, deviation during installation can be prevented, clamping block 63 is rotated and reset to be clamped into the inside of clamping groove 64, so that needle plate 2 can be pre-installed, prevent shaking during installation from causing fastening bolt 5 unable to be aligned, simultaneously, vertical plate 62 is pulled by winding rope 610, so that vertical plate 62 drives clamping block 63 to move out of the inside of clamping groove 64 to release limit, guide rod 66 is moved downward by the elasticity of bearing spring 67 to push needle plate 2 down, to facilitate the disassembly detection of needle plate 2.
[0025] The pre-installation mechanism 6 comprises a rotating rod 61, the inner wall of the needle plate 2 is rotationally connected with the rotating rod 61, the outer wall of the rotating rod 61 is fixedly installed with a vertical plate 62, the outer wall of the vertical plate 62 is fixedly installed with a clamping block 63, the upper end of the clamping block 63 is in an arc shape, the arc surface of the clamping block 63 is extruded by the outer wall of the mounting plate 4, so that the clamping block 63 drives the vertical plate 62 to rotate around the rotating rod 61 to release the limiting, facilitating clamping, the side wall of the mounting plate 4 is provided with a clamping groove 64, the clamping groove 64 is above the clamping block 63, the outer wall of the rotating rod 61 is fixedly connected with one end of a limiting torsion spring 65, the other end of the limiting torsion spring 65 is fixedly connected with the inner wall of the needle plate 2, the elastic force of the limiting torsion spring 65 can drive the clamping block 63 on the outer wall of the vertical plate 62 to rotate and reset to be clamped in the clamping groove 64, so that the needle plate 2 is pre-installed, the inner wall of the mounting plate 4 is slidably connected with a guide rod 66, the outer wall of the guide rod 66 is fixedly connected with one end of a bearing spring 67, the other end of the bearing spring 67 is fixedly connected with the inner wall of the mounting plate 4, the elastic force of the bearing spring 67 can drive the guide rod 66 to move downward to push the needle plate 2 downward, facilitating disassembly and detection of the needle plate 2, the needle plate 2 is provided with a guide groove 68, the guide rod 66 is inserted into the guide groove 68 to guide, preventing deviation during installation, the inner wall of the needle plate 2 is rotationally connected with a twisting rod 69, the twisting rod 69 is wound with a winding rope 610, the end of the winding rope 610 is fixedly connected with the outer wall of the vertical plate 62, the winding rope 610 is wound by twisting the twisting rod 69, the winding rope 610 can pull the vertical plate 62, the vertical plate 62 drives the clamping block 63 to move out of the clamping groove 64 to release the limiting, the outer wall of the twisting rod 69 is fixedly connected with one end of a reset torsion spring 611, the other end of the reset torsion spring 611 is fixedly connected with the inner wall of the needle plate 2.
[0026] In the embodiment, when the needle plate 2 is installed, the guide rod 66 is inserted into the guide slot 68 to prevent deviation during installation, and then the needle plate 2 is pushed upward to compress the bearing spring 67 inside the installation plate 4, at this time, the arc surface of the clamping block 63 is extruded by the outer wall of the installation plate 4, so that the clamping block 63 drives the vertical plate 62 to rotate around the rotating rod 61 to release the limit, at this time, the needle plate 2 continues to move upward, and then the clamping block 63 on the outer wall of the vertical plate 62 is rotated by the elastic force of the limiting torsion spring 65 to reset the clamping block 63 in the clamping slot 64, so that the needle plate 2 is pre-installed, preventing shaking during installation to align the fastening bolt 5, finally, the needle plate 2 is fixed and installed on the installation plate 4 by tightening the fastening bolt 5, when the needle on the needle plate 2 needs to be detected, the fastening bolt 5 is loosened, then the winding rope 610 is wound by rotating the winding rod 69, the winding rope 610 pulls the vertical plate 62, then the vertical plate 62 drives the clamping block 63 to move out of the clamping slot 64 to release the limit, at this time, the guide rod 66 moves downward by the elastic force of the bearing spring 67 to push the needle plate 2 down, then the needle plate 2 is conveniently disassembled and detected.
[0027] The above is a detailed description of the general utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the utility model, the modifications or improvements are within the scope of the utility model.
Claims
1. A needle punching device for manufacturing a four-way stretch nonwoven fabric, comprising a needle punching plate (2) provided on a machine body (1), characterized in that: The body (1) is fixedly installed with a cylinder (3), the output end of the cylinder (3) is fixedly installed with a mounting plate (4), the side wall of the mounting plate (4) is threadedly connected with a fastening bolt (5), and the needle plate (2) is provided with a pre-installation mechanism (6). The pre-installation mechanism (6) comprises: A rotating rod (61) is used to drive a vertical plate (62) to rotate; The vertical plate (62) is used to install a clamping block (63); The clamping block (63) is used for clamping, the inner wall of the needle plate (2) is rotatably connected with a rotating rod (61), the outer wall of the rotating rod (61) is fixedly installed with a vertical plate (62), the outer wall of the vertical plate (62) is fixedly installed with a clamping block (63), the upper end of the clamping block (63) is arc-shaped, the side wall of the mounting plate (4) is provided with a clamping groove (64), the clamping groove (64) is located above the clamping block (63), the outer wall of the rotating rod (61) is fixedly connected with one end of a limiting torsion spring (65), the other end of the limiting torsion spring (65) is fixedly connected with the inner wall of the needle plate (2), the inner wall of the mounting plate (4) is slidably connected with a guide rod (66), the outer wall of the guide rod (66) is fixedly connected with one end of a bearing spring (67), the other end of the bearing spring (67) is fixedly connected with the inner wall of the mounting plate (4), and the needle plate (2) is provided with a guide groove (68).
2. The needle punching device for manufacturing a four-way stretch elastic nonwoven fabric according to claim 1, characterized in that: The inner wall of the needle plate (2) is rotatably connected with a twisting rod (69), the twisting rod (69) is wound with a winding rope (610), and the end of the winding rope (610) is fixedly connected with the outer wall of the vertical plate (62).
3. The needle punching device for manufacturing a four-way stretch elastic nonwoven fabric according to claim 2, characterized in that: The outer wall of the twisting rod (69) is fixedly connected with one end of a reset torsion spring (611), and the other end of the reset torsion spring (611) is fixedly connected with the inner wall of the needle plate (2).