Needle plate clamping mechanism of double spindle rotary needle loom
By combining components such as pressure plates, side baffles, and limiting beams, the needle plate clamping mechanism solves the problem of unstable fixation caused by airbag aging, achieves stable clamping and quick installation of the needle plate, and enhances the fixation effect of the needle plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIZHENG JIAHE MASCH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-06-12
AI Technical Summary
The air bladder in the existing needle plate clamping mechanism of the needle machine is prone to aging and leakage during long-term use, which leads to unstable fixation of the needle plate. In addition, it can only clamp from the top and lacks lateral restraint, which affects the stability of installation.
The design incorporates components such as a pressure plate, side baffle, trapezoidal seat, bidirectional threaded rod, slide, and motor. The pressure roller squeezes the trapezoidal seat, which in turn drives the pressure plate to press and fix the needle plate. The side baffle and limiting beam limit the movement of both sides of the needle plate.
It improves the installation stability of the needle plate, avoids the problem of air leakage due to airbag aging, realizes a quick installation and disassembly process, and enhances the fixation effect of the needle plate.
Smart Images

Figure CN224350884U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of acupuncture machine technology, specifically to a needle plate clamping mechanism for a dual-spindle rocker wall acupuncture machine. Background Technology
[0002] A needle punching machine is a device that uses needles to pierce a loose fiber web, thereby entangled and reinforcing the fibers into a fabric. Specifically, a needle punching machine uses needles with triangular or other shaped cross-sections and barbs on their edges to repeatedly pierce the fiber web. When multiple needles pierce the web, the barbs on the needles move the fibers on the surface and subsurface of the web, causing the fibers to shift vertically, thus compressing and reinforcing the web. Needle punching machines are usually equipped with a needle plate clamping mechanism for attaching and detaching the needle plate.
[0003] A search revealed patent application CN200420078874.0, which discloses a needle plate clamping mechanism for an acupuncture machine. This mechanism includes a pair of air bladders fixed to both sides of a movable needle beam, a pair of clamping bars each with an inner cavity, and two sets of track stops. The upper ends of the track stops are fixed to the side walls of the movable needle beam, while the lower ends protect the clamping bars. This invention allows for easy inflation of the air bladders through inflation holes, causing the clamping bars to move upwards within the track space limited by the track stops. A hook plate then moves the needle plate upwards until it is firmly attached to the lower surface of the movable needle beam. Therefore, it offers accurate positioning of the needle plate and convenient installation and disassembly. Furthermore, the absence of fixing screws in the central area of the needle plate prevents interference with needle placement.
[0004] However, this patent has its shortcomings. In actual use, this needle plate clamping mechanism mainly relies on inflating the airbag to press and fix the needle plate with the pressure block. During long-term use, the airbag is prone to aging and leakage, affecting the normal installation and use of the needle plate. At the same time, during the fixing process, the pressure block can only press and fix the top of the needle plate. Since there is no limit on both sides of the needle plate, the needle plate is prone to left and right displacement within the movable needle beam during use, resulting in certain deficiencies in the stability of the needle plate after installation.
[0005] To address this, we propose a needle plate clamping mechanism for a dual-spindle rocker-type needle punching machine. Utility Model Content
[0006] The purpose of this invention is to provide a needle plate clamping mechanism for a dual-spindle rocker-type acupuncture machine, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a needle plate clamping mechanism for a dual-spindle rocker wall-mounted acupuncture machine, comprising a needle beam and a needle plate. Two L-shaped frames are fixedly installed at the bottom end of the needle beam. The needle plate is clamped within the two L-shaped frames. A pressure plate is pressed against the top of the needle plate within the two L-shaped frames. A trapezoidal seat is fixedly installed at the top of the pressure plate. A mounting seat is fixedly installed at the top of the needle beam. A bidirectional threaded rod is rotatably connected within the mounting seat. Two sliding blocks are threaded onto the bidirectional threaded rod. The bottom ends of the two sliding blocks extend into the L-shaped frames and are fixedly installed with connecting frames. Pressure rollers are rotatably connected within the two connecting frames. The bottom ends of the two pressure rollers are pressed against the pressure plate. Multiple sliding rods are fixedly installed on the pressure plate outside the trapezoidal seat. Through holes are provided at the top of the needle beam corresponding to the multiple sliding rods. A tensioning spring is sleeved on the outside of the multiple sliding rods.
[0008] Optionally, the top ends of the plurality of tensioning springs are fixedly mounted on the needle beam, and the bottom ends of the plurality of tensioning springs are fixedly mounted on the pressure plate. This design is beneficial to the use of the equipment.
[0009] Optionally, the top ends of the plurality of slide rods extend out of the through hole and are fixedly installed with a limiting plate. The plurality of slide rods are slidably connected in the through hole, and the limiting plate can limit the slide rods.
[0010] Optionally, the bidirectional threaded rod is provided with two opposing threads, and the two slides are respectively sleeved on the two threads. This design is beneficial to the use of the equipment.
[0011] Optionally, a motor is fixedly mounted on the rear end of the mounting base, and the output end of the motor is fixedly mounted on a bidirectional threaded rod. The motor drives the bidirectional threaded rod to rotate, which is beneficial to the use of this equipment.
[0012] Optionally, side baffles are fixedly installed on both sides of the pressure plate, and the two side baffles abut against the two ends of the needle plate on the side closest to each other, so that the two sides of the needle plate can be limited by the side baffles.
[0013] Optionally, a limiting beam is fixedly installed at the left end of each of the two L-shaped frames, which can limit the left side of the needle plate.
[0014] Optionally, connecting seats are fixedly installed on both sides of the top of the needle beam at the mounting base, which facilitates the connection of this device to the power mechanism on the acupuncture machine.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] Through the cooperation of pressure plate, side baffle, trapezoidal seat, mounting seat, bidirectional threaded rod, slide, motor, connecting frame, pressure roller, slide rod, tensioning spring, limiting plate and perforation, the pressure roller can squeeze the trapezoidal seat to drive the pressure plate to press and fix the needle plate. It is convenient and quick to use, avoiding the problem of air aging and leakage of traditional airbag clamping mechanisms during long-term use, which affects the normal installation and use of needle plates. At the same time, this equipment can not only press the top of the needle plate during the clamping process, but also limit the two sides of the needle plate, thereby further improving the stability of the needle plate after installation and fixation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the needle plate clamping mechanism of a dual-spindle rocking wall needle punching machine according to the present invention.
[0018] Figure 2 This is a cross-sectional view of the needle plate clamping mechanism of a dual-spindle rocking wall needle punching machine according to the present invention.
[0019] Figure 3 This is a cross-sectional view of the mounting base in the needle plate clamping mechanism of a dual-spindle rocking wall needle punching machine according to the present invention.
[0020] Figure 4 This is a cross-sectional view of the slide bar in the needle plate clamping mechanism of a dual-spindle rocker-type acupuncture machine according to this utility model.
[0021] In the diagram: 1. Needle beam; 2. L-shaped frame; 3. Connecting seat; 4. Pressure plate; 5. Limiting beam; 6. Needle plate; 7. Side baffle; 8. Trapezoidal seat; 9. Mounting seat; 10. Bidirectional threaded rod; 11. Slide seat; 12. Motor; 13. Connecting frame; 14. Pressure roller; 15. Slide rod; 16. Tensioning spring; 17. Limiting plate; 18. Perforation. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1 to 4This utility model provides a needle plate clamping mechanism for a dual-spindle rocker wall-mounted acupuncture machine, including a needle beam 1 and a needle plate 6. Two L-shaped frames 2 are fixedly installed at the bottom end of the needle beam 1. The needle plate 6 is clamped in the two L-shaped frames 2. A pressure plate 4 is pressed into the top of the needle plate 6 in the two L-shaped frames 2. A trapezoidal seat 8 is fixedly installed at the top of the pressure plate 4. A mounting seat 9 is fixedly installed at the top of the needle beam 1. A bidirectional threaded rod 10 is rotatably connected in the mounting seat 9. Two slides 11 are threaded on the bidirectional threaded rod 10. The bottom ends of the two slides 11 extend into the L-shaped frames 2 and are fixedly installed with connecting frames 13. Pressure rollers 14 are rotatably connected in the two connecting frames 13. The bottom ends of the two pressure rollers 14 are pressed into the pressure plate 4. Multiple slide rods 15 are fixedly installed on the pressure plate 4 outside the trapezoidal seat 8. A through hole 18 is provided at the top of the needle beam 1 corresponding to the multiple slide rods 15. A tensioning spring 16 is sleeved on the outside of the multiple slide rods 15.
[0024] The top ends of multiple tension springs 16 are fixedly mounted on the needle beam 1, and the bottom ends of multiple tension springs 16 are fixedly mounted on the pressure plate 4. This design facilitates the use of the equipment. The top ends of multiple slide rods 15 extend out of the through hole 18 and are fixedly mounted with a limiting plate 17. Multiple slide rods 15 are slidably connected in the through hole 18. The limiting plate 17 can limit the slide rods 15. The bidirectional threaded rod 10 is provided with two opposing threads, and two slide blocks 11 are respectively sleeved on the two threads. This design facilitates the use of the equipment. The rear end of the mounting base 9 is fixedly mounted with a motor 12. The output end of the motor 12 is fixedly installed on the bidirectional threaded rod 10. The bidirectional threaded rod 10 is rotated by the motor 12, which is beneficial to the use of this equipment. Side baffles 7 are fixedly installed on both sides of the pressure plate 4. The two side baffles 7 are close to each other and abut against the two ends of the needle plate 6. The side baffles 7 can limit the two sides of the needle plate 6. The left end of the two L-shaped frames 2 is fixedly installed with a limiting beam 5. The left side of the needle plate 6 can be limited by the limiting beam 5. The top of the needle beam 1 is fixedly installed on both sides of the mounting base 9. The connecting base 3 facilitates the connection of this equipment to the power mechanism on the acupuncture machine.
[0025] Working principle: In use, the motor 12 is electrically connected to the external PLC controller via a connecting cable, and the two connecting seats 3 are connected and fixed to the power mechanism on the needle punching machine via multiple external bolts. When the needle plate 6 needs to be installed, insert the needle plate 6 from the right side of the two L-shaped frames 2. When the left side of the needle plate 6 abuts against the limiting beam 5, turn on the forward rotation switch of the motor 12. At this time, the motor 12 drives the bidirectional threaded rod 10 to rotate, and the two slides 11 drive the two connecting frames 13 to slide towards each other. The two pressure rollers 14 roll along the inclined surfaces of the front and rear ends of the trapezoidal seat 8 to the top of the trapezoidal seat 8, and then press down on the trapezoidal seat 8. The trapezoidal seat 8 drives the pressure plate 4 to press down on the needle plate 6 to fix it. The two side baffles 7 limit and fix the two sides of the needle plate 6, thus completing the installation of the needle plate 6. When the needle plate 6 needs to be removed, turn on the reverse rotation switch of the motor 12. At this time, the two slides 11 drive the two connecting frames 13 and the pressure rollers 14 to move away from each other. The side rotation causes the pressure roller 14 to disengage from the trapezoidal seat 8. At this time, multiple tension springs 16 contract and drive the pressure plate 4 to rise, causing the two side baffles 7 to rise. At this time, both sides of the needle plate 6 lose their limiting obstruction, and the needle plate 6 can be pulled out from the two L-shaped frames 2 to the right for disassembly. The circuit connection methods, mechanical structures, and connection relationships not mentioned in this specification are all conventional technical means in this field, so they will not be described in detail. The needle plate clamping mechanism of this dual-spindle rocker wall needle punching machine is easy to use. Through the above components, the pressure roller 14 can squeeze the trapezoidal seat 8 to drive the pressure plate 4 to press and fix the needle plate 6. It is convenient and quick to use, avoiding the problem that the airbag is prone to aging and leakage during long-term use of the traditional airbag clamping mechanism, which affects the normal installation and use of the needle plate. At the same time, this equipment can not only press the top of the needle plate 6 during the clamping process, but also limit the two sides of the needle plate 6, thereby further improving the stability of the needle plate 6 after installation and fixation.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A needle plate clamping mechanism for a dual-spindle rocker-wall type acupuncture machine, characterized in that, The device includes a needle beam (1) and a needle plate (6). Two L-shaped brackets (2) are fixedly installed at the bottom end of the needle beam (1). The needle plate (6) is snapped into the two L-shaped brackets (2). A pressure plate (4) is pressed into the two L-shaped brackets (2) at the top of the needle plate (6). A trapezoidal seat (8) is fixedly installed at the top of the pressure plate (4). A mounting seat (9) is fixedly installed at the top of the needle beam (1). A bidirectional threaded rod (10) is rotatably connected in the mounting seat (9). Two sliding seats (11) are threaded onto the bidirectional threaded rod (10). The bottom ends of the two slides (11) extend into the L-shaped frame (2) and are fixedly installed with connecting frames (13). The two connecting frames (13) are rotatably connected with pressure rollers (14). The bottom ends of the two pressure rollers (14) are pressed onto the pressure plate (4). Multiple slide rods (15) are fixedly installed on the pressure plate (4) on the outside of the trapezoidal seat (8). The top of the needle beam (1) is provided with through holes (18) corresponding to the multiple slide rods (15). Tensioning springs (16) are sleeved on the outside of the multiple slide rods (15).
2. The needle plate clamping mechanism of a dual-spindle rocker-wall type acupuncture machine according to claim 1, characterized in that, The top ends of the plurality of tension springs (16) are fixedly mounted on the needle beam (1), and the bottom ends of the plurality of tension springs (16) are fixedly mounted on the pressure plate (4).
3. The needle plate clamping mechanism of a dual-spindle rocker-wall type acupuncture machine according to claim 1, characterized in that, The top ends of the plurality of slide rods (15) extend out of the through hole (18) and are fixedly installed with a limiting plate (17), and the plurality of slide rods (15) are slidably connected in the through hole (18).
4. The needle plate clamping mechanism of a dual-spindle rocker-wall type acupuncture machine according to claim 1, characterized in that, The bidirectional threaded rod (10) is provided with two opposing threads, and the two slides (11) are respectively sleeved on the two threads.
5. The needle plate clamping mechanism of a dual-spindle rocker-wall type acupuncture machine according to claim 1, characterized in that, A motor (12) is fixedly installed at the rear end of the mounting base (9), and the output end of the motor (12) is fixedly installed on the bidirectional threaded rod (10).
6. The needle plate clamping mechanism of a dual-spindle rocker-wall type acupuncture machine according to claim 1, characterized in that, Side baffles (7) are fixedly installed on both sides of the pressure plate (4), and the two side baffles (7) are close to each other and abut against the two ends of the needle plate (6).
7. The needle plate clamping mechanism of a dual-spindle rocker-wall type acupuncture machine according to claim 1, characterized in that, Limit beams (5) are fixedly installed on the left end of the two L-shaped frames (2).
8. The needle plate clamping mechanism of a dual-spindle rocker-wall type acupuncture machine according to claim 1, characterized in that, The top of the needle beam (1) is fixedly mounted on both sides of the mounting base (9) with connecting seats (3).
Citation Information
Patent Citations
Needle machine plate clamping mechanism
CN2719883Y