Needling plate and positioning mechanism of pre-oxidized fiber needling felt making machine
By designing an adjustment chamber and support frame combination in the pre-oxidized fiber needle-punched felt making machine, flexible adjustment of needle length and structural stability are achieved, solving the problem of inconvenient needle length adjustment in the existing technology, and improving the efficiency and ease of operation of the equipment.
Patent Information
- Application Number
- CN202520339685.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The needle length of the existing pre-oxidized fiber needle-punched felt making machine is not easy to adjust, which leads to frequent replacements, affecting production efficiency and ease of operation.
A spike plate assembly comprising an adjustment chamber, a chute, a push plate, and a cylinder was designed. The cylinder pushes the push plate and the spikes to adjust their lengths synchronously, and the assembly is supported and positioned by a support frame, thereby achieving flexible adjustment of the spike length and structural stability.
It enables flexible adjustment of the needle length, improves the practicality and ease of operation of the equipment, avoids needle deviation, and enhances production efficiency and equipment stability.
Smart Images

Figure CN223837701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pre-oxidized fiber needle-punched felt making machine, specifically a needle plate and positioning mechanism for a pre-oxidized fiber needle-punched felt making machine. Background Technology
[0002] The pre-oxidized fiber needle-punched felting machine is a key piece of equipment for producing pre-oxidized fiber felt. The needle plate, as one of the core components of the machine, directly affects the quality and production efficiency of the pre-oxidized fiber felt. During the needle-punching process, the needles on the needle plate need to be accurately inserted into the pre-oxidized fiber layer, causing the fibers to entangle and form a felt body. In existing pre-oxidized fiber needle-punched felting machines, the needles are typically installed on the bottom outer wall of the needle plate. For felts of different thicknesses, needles of different lengths are usually required. However, after installation, the working length of the existing needles is inconvenient to adjust, necessitating frequent needle replacements and making them inconvenient to use. Utility Model Content
[0003] The purpose of this invention is to provide a needle plate and positioning mechanism for a pre-oxidized fiber needle-punched felt making machine to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A needle plate and positioning mechanism for a pre-oxidized fiber needle-punched felt making machine includes a needle plate assembly. The needle plate assembly includes an adjustment chamber with a groove on the inner wall of the adjustment chamber. A needle plate is slidably connected to the inner wall of the groove. Needles are uniformly and detachably fixedly installed on the bottom outer wall of the needle plate. A push plate is fixedly connected to the top outer wall of the needle plate. A cylinder for pushing the push plate to move up and down is fixedly installed on the top of the push plate.
[0006] In a preferred embodiment of this utility model, the bottom inner wall of the adjustment chamber is evenly provided with needle holes, the bottom outer wall of the spike plate is evenly welded with needle seats, and the bottom four corners of the push plate are fixedly connected to the spike plate by connecting rods.
[0007] In a preferred embodiment of this utility model, the needle holder is positioned vertically corresponding to the needle hole, and the needle is slidably connected to the inner wall of the needle hole.
[0008] In a preferred embodiment of this utility model, a screw hole is provided on the inner wall of the bottom of the needle holder, and a notch is provided on the outer wall of the needle.
[0009] In a preferred embodiment of this utility model, a threaded rod is fixedly connected to the top outer wall of the needle, and the threaded rod is threadedly connected to the threaded hole on the bottom inner wall of the needle holder.
[0010] In a preferred embodiment of the present invention, a first support frame is included, and a first connecting seat is provided on the outer walls of both ends of the first support frame. A first reinforcing plate is fixedly installed on the bottom outer wall of the first connecting seat, and a push rod is fixedly installed at the top center position of the first support frame.
[0011] In a preferred embodiment of the present invention, the top left and right inner walls of the first support frame are provided with first slots, the cylinder is fixedly installed at the bottom center of the first support frame, the top of the first support frame is fitted with a second support frame, the bottom outer wall of the second support frame is provided with a second slot, and the second slot is fitted with the first slot for insertion connection.
[0012] In a preferred embodiment of the present invention, a second connecting seat is provided at both ends of the second support frame, and a second reinforcing plate is fixedly connected to the bottom outer wall of the second connecting seat. The first support frame, the second connecting seat, the first reinforcing plate and the second reinforcing plate are all fixedly connected to the outer wall of the adjustment chamber by bolts, and the connection between the first slot and the second slot is fixedly connected by bolts.
[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
[0014] 1. By opening the cylinder to push the push plate and the needle to extend and retract synchronously, the exposed length of the needle can be adjusted. This allows for flexible adjustment of the needle length according to the thickness of the felt being made, eliminating the need for frequent needle replacements and improving the practicality and ease of operation of the equipment.
[0015] 2. By setting up a combination of the first support frame and the second support frame, the top of the adjustment chamber is supported and positioned, so that the adjustment chamber and the barbed plate can maintain synchronous height adjustment during operation. This improves the structural stability of the equipment during use, prevents the barbed plate and the barbed needles installed at the bottom of the barbed plate from shifting, and improves the practicality of the equipment. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0017] Figure 1 This is a schematic diagram of the main structure of the needle plate and positioning mechanism in a pre-oxidized fiber needle-punched felt making machine;
[0018] Figure 2 A bottom view schematic diagram of the needle plate and positioning mechanism in a pre-oxidized fiber needle-punched felt making machine;
[0019] Figure 3This is an exploded structural diagram of the needle plate and positioning mechanism in a pre-oxidized fiber needle-punched felt making machine.
[0020] Figure 4 This is a schematic diagram of the needle mounting structure in the needle plate and positioning mechanism of a pre-oxidized fiber needle-punched felt making machine.
[0021] Figure 5 This is a schematic diagram of the positioning component structure in the needle plate and positioning mechanism of a pre-oxidized fiber needle-punched felt making machine.
[0022] In the figure: adjustment chamber 100, slide 110, needle hole 120, spike plate 200, connecting rod 210, push plate 220, needle seat 230, screw hole 231, spike 240, threaded rod 242, cylinder 250, first support frame 300, first slot 310, push rod 320, first connecting seat 330, first reinforcing plate 331, second support frame 340, second slot 341, second connecting seat 350, second reinforcing plate 351. Detailed Implementation
[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0024] Example 1: As Figures 1-4 The device includes a barbed plate assembly, which includes an adjustment chamber 100. The inner wall of the adjustment chamber 100 is provided with a groove 110. The inner wall of the groove 110 is slidably connected to a barbed plate 200. The bottom outer wall of the barbed plate 200 is uniformly and detachably fixedly installed with barbed needles 240. The top outer wall of the barbed plate 200 is fixedly connected to a push plate 220. The top of the push plate 220 is fixedly installed with a cylinder 250 for pushing the push plate 220 to move up and down.
[0025] The specific application scenario of this embodiment is as follows: by setting an adjustable exposed needle 240, it is convenient to adjust the height of the needle plate 200 and the needle 240 by opening the cylinder 250 when making felt of different thicknesses, thereby improving the practicality of the equipment and the convenience of operation.
[0026] Example 2: Figure 2 and Figure 3The bottom inner wall of the regulating chamber 100 is evenly provided with needle holes 120. The bottom outer wall of the spike plate 200 is evenly welded with needle seat 230. The bottom four corners of the push plate 220 are fixedly connected to the spike plate 200 by connecting rod 210. The position of the needle seat 230 is distributed vertically and vertically with the needle holes 120. The needle 240 is slidably connected to the inner wall of the needle hole 120. The bottom inner wall of the needle seat 230 is provided with a screw hole 231. The outer wall of the needle 240 is provided with a notch 241. The top outer wall of the needle 240 is fixedly connected with a threaded rod 242. The threaded rod 242 is threadedly connected to the screw hole 231 on the bottom inner wall of the needle seat 230.
[0027] The specific application scenario of this embodiment is as follows: the needle 240 is connected to the needle head seat 230 by the threaded rod 242, and the needle plate 200 is slidably installed inside the slide groove 110, so that the needle 240 extends through the needle hole 120 to the outside of the adjustment chamber 100. By opening the cylinder 250, the push plate 220 and the needle 240 are pushed to extend and retract synchronously to adjust the exposed length of the needle 240, so as to flexibly adjust the length of the needle 240 according to the thickness of the felt to be made.
[0028] Example 3: As Figure 1 and Figure 5 The system includes a first support frame 300, with first connecting seats 330 on both outer walls of the first support frame 300. A first reinforcing plate 331 is fixedly installed on the bottom outer wall of the first connecting seat 330. A push rod 320 is fixedly installed at the top center of the first support frame 300. First slots 310 are opened on the inner walls of the left and right sides of the top of the first support frame 300. A cylinder 250 is fixedly installed at the bottom center of the first support frame 300. A second support frame 340 is inserted and connected to the top of the first support frame 300. A second slot 341 is provided on the bottom outer wall of the frame 340. The second slot 341 is connected to the first slot 310 by insertion. Both ends of the second support frame 340 are provided with second connecting seats 350. The bottom outer wall of the second connecting seat 350 is fixedly connected to the second reinforcing plate 351. The first support frame 300, the second connecting seat 350, the first reinforcing plate 331 and the second reinforcing plate 351 are all fixedly connected to the outer wall of the adjustment chamber 100 by bolts. The connection between the first slot 310 and the second slot 341 is fixedly connected by bolts.
[0029] The specific application scenario of this embodiment is as follows: by setting the first support frame 300 and the second support frame 340 together, the top of the adjustment chamber 100 is supported and positioned, so that the adjustment chamber 100 and the barbed plate 200 can maintain synchronous height adjustment during operation, which improves the structural stability of the equipment during use, avoids the barbed plate 200 and the barbed needle 240 installed at the bottom of the barbed plate 200 from shifting, and improves the practicality of the equipment.
[0030] The working principle of this utility model is as follows: When used by those skilled in the art, the needle 240 is threadedly connected to the needle head seat 230 via the threaded rod 242. The needle plate 200 is slidably installed inside the slide groove 110, allowing the needle 240 to pass through the needle hole 120 and extend to the outside of the adjustment chamber 100. Then, the first support frame 300 and the second support frame 340 are sequentially fixed to the top of the adjustment chamber 100 with bolts. At the same time, the connection between the first support frame 300 and the second support frame 340 is fixedly connected with bolts. The cylinder 250 is fixedly installed between the first support frame 300 and the push plate 220. Finally, the push rod 320 at the top of the first support frame 300 is connected to the output end of the pre-oxidized fiber needle-punched felt machine via a connector. The fixed connection allows for simultaneous extension and retraction of the push plate 220 and the needle 240 by opening the cylinder 250 during operation of the pre-oxygenated fiber needle-punched felt making machine. This adjusts the exposed length of the needle 240 according to the thickness of the felt being made, improving the practicality and ease of operation of the equipment. The combination of the first support frame 300 and the second support frame 340 supports and positions the top of the adjustment chamber 100, ensuring that the adjustment chamber 100 and the needle plate 200 maintain synchronized height adjustment during operation. This improves the structural stability of the equipment and prevents misalignment between the needle plate 200 and the needle 240 installed at the bottom of the needle plate 200, further enhancing the practicality of the equipment.
[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A barbed plate for a pre-oxidized fiber needle-punched felting machine, comprising a barbed plate assembly, the barbed plate assembly including an adjustment chamber (100), the inner wall of the adjustment chamber (100) being provided with a groove (110), the inner wall of the groove (110) being slidably connected to a barbed plate (200), characterized in that, The bottom outer wall of the spike plate (200) is uniformly and detachably fixedly installed with spikes (240), the top outer wall of the spike plate (200) is fixedly connected with a push plate (220), and the top of the push plate (220) is fixedly installed with a cylinder (250) for pushing the push plate (220) to rise and fall.
2. The needle plate of the pre-oxidized fiber needle-punched felt-making machine according to claim 1, characterized in that, The bottom inner wall of the regulating chamber (100) is evenly provided with needle holes (120), the bottom outer wall of the spike plate (200) is evenly welded with needle seat (230), and the bottom four corners of the push plate (220) are fixedly connected to the spike plate (200) by connecting rods (210).
3. The needle plate of the pre-oxidized fiber needle-punched felt-making machine according to claim 2, characterized in that, The needle holder (230) is positioned correspondingly to the needle hole (120) and the needle (240) is slidably connected to the inner wall of the needle hole (120).
4. The needle plate of the pre-oxidized fiber needle-punched felt-making machine according to claim 3, characterized in that, The needle holder (230) has a screw hole (231) on its bottom inner wall, and the needle (240) has a notch (241) on its outer wall.
5. The needle plate of a pre-oxidized fiber needle-punched felt-making machine according to claim 4, characterized in that, The top outer wall of the needle (240) is fixedly connected to a threaded rod (242), and the threaded rod (242) is threadedly connected to the threaded hole (231) on the bottom inner wall of the needle seat (230).
6. A positioning mechanism for positioning the needle plate of the pre-oxidized fiber needle-punched felting machine according to any one of claims 1-5, characterized in that, The first support frame (300) is provided with a first connecting seat (330) on both ends of the outer wall. A first reinforcing plate (331) is fixedly installed on the bottom outer wall of the first connecting seat (330). A push rod (320) is fixedly installed at the top center of the first support frame (300).
7. A positioning mechanism according to claim 6, characterized in that, The first support frame (300) has a first slot (310) on the inner wall of the top left and right sides. The cylinder (250) is fixedly installed at the bottom center of the first support frame (300). The second support frame (340) is installed on the top of the first support frame (300). The second support frame (340) has a second slot (341) on the bottom outer wall. The second slot (341) is connected to the first slot (310) by insertion.
8. A positioning mechanism according to claim 7, characterized in that, The second support frame (340) is provided with a second connecting seat (350) at both ends. The bottom outer wall of the second connecting seat (350) is fixedly connected to a second reinforcing plate (351). The first support frame (300), the second connecting seat (350), the first reinforcing plate (331) and the second reinforcing plate (351) are all fixedly connected to the outer wall of the adjustment chamber (100) by bolts. The connection between the first slot (310) and the second slot (341) is fixedly connected by bolts.