Needling assembly
By designing needle puncture components that move in reverse at the same time with needle puncture plates and pinhole plates, the problem of low production efficiency in the prior art when dealing with high density or high thickness fiber webs is solved, and deeper puncture effects and tighter fiber structures are achieved.
Patent Information
- Application Number
- CN202422226508.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-11
AI Technical Summary
When the existing needle-punch carpet process treats high-density or high-thickness fiber webs, the production efficiency is limited by the mechanical structure and is difficult to improve.
A needle puncture assembly is designed, and the mechanism of reverse movement of the needle puncture plate and the needle puncture plate are adopted. Through the synergistic action of the driving mechanism, the needle puncture plate mechanism and the base plate mechanism, the reverse movement of the needle puncture plate and the needle puncture plate are achieved.
Through reverse movement, the number and strength of the contact between the needle and the fiber is increased, and the interweaving and rearrangement of the fibers in multiple directions is promoted, which significantly improves the puncture effect and depth, making the formed fiber structure more tight and firm.
Smart Images
Figure CN223003113U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a textile machine, and more specifically, it relates to a needling assembly. Background Art
[0002] The needling carpet process is an efficient and environmentally friendly carpet production method. Its core lies in using physical and mechanical actions, namely needling technology, to deeply reinforce and form a fiber web that has undergone carding and pre-forming processes (usually composed of a mixture of various fibers such as wool and chemical fibers). Through a special needling machine, a large number of fine needles are pierced into and through the fiber web at high speed and high frequency, driving the long fibers in the fiber web to displace and rearrange along its thickness direction, thereby forming a complex intertwined structure among the fibers, significantly enhancing the strength and integrity of the fiber web, and finally forming a carpet product with excellent elasticity, wear resistance, and aesthetics. The needling machine is the key equipment for realizing the needling carpet process, mainly composed of a frame, a transmission system, a needling plate, a perforated plate, a fiber web conveying device, etc. Among them, the needling plate and the perforated plate are the core working components. The needling plate is densely covered with sharp and durable needles, while the perforated plate is designed with holes corresponding to the needles to guide the needles to smoothly penetrate the fiber web without damaging the equipment. During operation, the fiber web is continuously conveyed between the needling plate and the perforated plate. As the needling plate moves up and down periodically, the needles penetrate the fiber web and drive the fibers to move, forming a stable fiber intertwined structure. Since only relying on the vertical movement of the needling plate to drive the needles for piercing, its working frequency and depth are limited by the mechanical structure, and it is difficult to further improve the production efficiency, especially when dealing with high-density or high-thickness fiber webs, it is more obvious. Content of the Utility Model
[0003] The purpose of the utility model is to provide a needling assembly, which realizes the simultaneous reverse movement of the needling plate and the perforated plate, has better piercing effect and piercing depth, and can form a more firm three-dimensional fiber structure.
[0004] The above technical object of the present utility model is achieved through the following technical solutions: A needle punching assembly includes a driving mechanism, a needle plate mechanism, a fixed beam, and a bottom plate mechanism; the driving mechanism includes a driving wheel, a driving shaft, and a mounting bracket; a fixed bearing is provided on the mounting bracket; the driving shaft is connected to the mounting bracket through the fixed bearing; one end of the driving shaft is connected to the driving wheel; the needle plate mechanism includes an eccentric wheel component and a needle plate connecting rod; the eccentric wheel component is connected to the needle plate connecting rod; the lower end of the needle plate connecting rod is connected to the needle punching plate; the eccentric wheel component is connected to the driving shaft; the fixed beam is fixedly arranged below the driving shaft; a first sleeve is provided on the fixed beam; the first sleeve is sleeved on the needle plate connecting rod; the needle plate connecting rod is used to drive the needle punching plate to move up and down; the bottom plate mechanism includes a cam component and a bottom plate connecting rod; the cam component is arranged on the driving shaft; the cam component is connected to the bottom plate connecting rod; the lower end of the bottom plate connecting rod is connected to the needle hole plate; the needle hole plate is arranged below the needle punching plate; a second sleeve is also provided on the fixed beam; the second sleeve is sleeved on the bottom plate connecting rod; the bottom plate connecting rod is used to drive the needle hole plate to move up and down; the movement direction of the needle hole plate is opposite to that of the needle punching plate.
[0005] Further, the eccentric wheel component includes a connecting rod arm and an eccentric wheel; the connecting rod arm includes a connecting portion and a disc portion; a wheel cavity adapted to the eccentric wheel is provided on the disc portion; the eccentric wheel is arranged in the wheel cavity; a through wheel hole is also provided on the disc portion; the eccentric wheel is connected to the driving shaft; the connecting portion is hinged to the needle plate connecting rod.
[0006] Further, an eccentric wheel bearing is provided on the outer edge of the eccentric wheel.
[0007] Further, the cam component includes two relatively arranged cams; a circular groove is provided inside the cam; the center of the groove does not coincide with the center of the cam; a roller is provided at the top of the bottom plate connecting rod; the roller is used to roll in the groove.
[0008] Further, a fixed shaft is provided at the top of the bottom plate connecting rod, and a bearing is sleeved on the fixed shaft; the roller is sleeved on the bearing; a retaining plate is also provided between the roller and the bottom plate connecting rod.
[0009] Further, a balance wheel is further included; the balance wheel is arranged on the driving shaft; the balance wheel is used to balance the unbalanced force generated by the rotation of the eccentric wheel.
[0010] Further, it includes two needle plate mechanisms and two bottom plate mechanisms; the two needle plate mechanisms are arranged between the two bottom plate mechanisms.
[0011] Further, needle punching needles are provided on the needle punching plate; needle holes corresponding to the needle punching needles are provided on the needle hole plate.
[0012] In summary, the present utility model has the following beneficial effects: By designing a mechanism in which the needle punching plate and the needle hole plate move in opposite directions simultaneously, the needle punching assembly of the present utility model can penetrate the fiber web more effectively, especially for fiber webs with high density and high thickness. This reverse movement not only increases the number of contacts and the force between the needles and the fibers, but also promotes the interweaving and rearrangement of the fibers in multiple directions, thus significantly improving the punching effect and depth, and making the formed fiber structure more compact and firm. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the needle punching assembly of the embodiment
[0014] Figure 2 is an exploded schematic diagram of the needle plate mechanism of the embodiment
[0015] Figure 3 is an exploded schematic diagram of the bottom plate mechanism of the embodiment
[0016] In the figure: 11, driving wheel; 12, driving shaft; 13, mounting bracket; 131, fixed bearing; 2, bottom plate mechanism; 21, cam; 211, groove; 3, needle plate mechanism; 311, connecting part; 312, disc part; 313, wheel cavity; 32, eccentric wheel; 33, eccentric wheel bearing; 4, bottom plate connecting rod; 41, second sleeve; 42, roller; 43, bearing; 44, abutting plate; 45, fixed shaft; 5, needle plate connecting rod; 51, second sleeve; 6, needle hole plate; 7, needle punching plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0018] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected" to another component, it can be directly or indirectly connected to the other component, and this "connection" does not limit fixed connection or movable connection. The specific connection method should be determined according to the specific technical problem to be solved.
[0019] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0020] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.
[0021] Embodiment:
[0022] A needling assembly for a needling machine. The needling assembly includes a needling plate 7 and a perforated plate 6. The needling plate 7 and the perforated plate 6 move in opposite directions during operation. The needling assembly includes a driving mechanism, a needle plate mechanism 3, a fixed beam, and a bottom plate mechanism 2; the driving mechanism includes a driving wheel 11, a driving shaft 12, and a mounting bracket 13. The driving wheel 11 is connected to the motor by a belt. The motor drives the driving wheel 11 to rotate through the belt. A fixed bearing 131 is provided on the mounting bracket 13; the driving shaft 12 is connected to the mounting bracket 13 through the fixed bearing 131; one end of the driving shaft 12 is connected to the driving wheel 11; the driving wheel 11 drives the driving shaft 12 to rotate.
[0023] The needle plate mechanism 3 includes an eccentric wheel 32 component and a needle plate connecting rod 5; the eccentric wheel 32 component is connected to the needle plate connecting rod 5; the lower end of the needle plate connecting rod 5 is connected to the needling plate 7; the eccentric wheel 32 component is connected to the driving shaft 12; the fixed beam is fixedly arranged below the driving shaft 12; a first sleeve is provided on the fixed beam; the first sleeve is sleeved on the needle plate connecting rod 5; the needle plate connecting rod 5 is used to drive the needling plate 7 to move up and down. The bottom plate mechanism 2 includes a cam 21 component and a bottom plate connecting rod 4; the cam 21 component is arranged on the driving shaft 12; the cam 21 component is connected to the bottom plate connecting rod 4; the lower end of the bottom plate connecting rod 4 is connected to the perforated plate 6; the perforated plate 6 is arranged below the needling plate 7; a second sleeve 5141 is also provided on the fixed beam; the second sleeve 5141 is sleeved on the bottom plate connecting rod 4; the bottom plate connecting rod 4 is used to drive the perforated plate 6 to move up and down; the perforated plate 6 and the needling plate 7 move in opposite directions. During operation, the fiber web is continuously conveyed between the needling plate 7 and the perforated plate 6. As the needling plate 7 moves upward and the perforated plate 6 moves downward (or vice versa), the needles penetrate the fiber web and drive the fibers to displace and rearrange along its thickness direction. Due to the reverse movement of the needling plate 7 and the perforated plate 6, the piercing path of the needles in the fiber web is more complex, promoting the interweaving and rearrangement of the fibers, thereby enhancing the strength and integrity of the fiber web.
[0024] In a possible embodiment, the eccentric wheel 32 component includes a connecting rod arm and an eccentric wheel 32; the connecting rod arm includes a connecting portion 311 and a disc portion 312; a wheel cavity 313 adapted to the eccentric wheel 32 is provided on the disc portion 312; the eccentric wheel 32 is disposed in the wheel cavity 313; a through wheel hole is further provided on the disc portion 312; the eccentric wheel 32 is connected to the drive shaft 12; the connecting portion 311 is hinged to the needle plate connecting rod 5. The connecting portion 311 of the rod arm is hinged to the needle plate connecting rod 5, enabling the connecting rod arm to swing around the hinge point. When the eccentric wheel 32 rotates, due to the existence of the eccentricity and the first sleeve, it will push the disc portion 312 of the connecting rod arm to move in the circumferential direction, and then drive the needle plate connecting rod 5 to reciprocate up and down through the connecting portion 311. The connection of the connecting portion 311 to the needle plate connecting rod 5 can avoid the problem of the needle punching plate 7 tilting. Preferably, an eccentric wheel bearing 43 is provided on the outer edge of the eccentric wheel 32. Through the eccentric wheel bearing 43, the eccentric wheel 32 can move more smoothly in the wheel cavity 313.
[0025] In a possible embodiment, the cam 21 component includes two relatively arranged cams 21; a circular groove 211 is provided inside the cam 21; the center of the groove 211 does not coincide with the center of the cam 21; a roller 42 is provided at the top of the bottom plate connecting rod 4; the roller 42 is used for rolling in the groove 211. Since the two relatively arranged cams 21 are connected to the drive shaft 12, the rotation of the drive shaft 12 will drive the two cams 21 to rotate synchronously. The centers of rotation of these two cams 21 do not coincide with the centers of the grooves 211 inside them, so they will exhibit eccentric motion when rotating. A roller 42 is provided at the top of the bottom plate connecting rod 4, and these rollers 42 are designed to roll in the groove 211 of the cam 21. When the cam 21 rotates, its eccentric design causes the boundary of the groove 211 to continuously change, thereby driving the roller 42 to roll in the groove 211. The contact force and frictional force between the roller 42 and the groove 211 are converted into the up and down reciprocating motion of the bottom plate connecting rod 4. The lower end of the bottom plate connecting rod 4 is connected to the needle hole plate 6, so as the bottom plate connecting rod 4 reciprocates up and down, the needle hole plate 6 will also move up and down accordingly. When the center of the eccentric wheel 32 and the center of the circular groove 211 are offset in opposite directions from the drive shaft 12, this movement is usually opposite to the movement direction of the needle punching plate 7 to achieve the reverse movement of the needle punching plate 7 and the needle hole plate 6.
[0026] In a possible embodiment, a fixed shaft 45 is provided at the top of the bottom plate connecting rod 4, and a bearing 43 is sleeved on the fixed shaft 45; the roller 42 is sleeved on the bearing 43; a backing plate 44 is further provided between the roller 42 and the bottom plate connecting rod 4. Through the above solution, the rolling of the roller 42 becomes smoother.
[0027] In a possible embodiment, a balance wheel is further included; the balance wheel is arranged on the drive shaft 12; the balance wheel is used to balance the unbalanced force generated by the rotation of the eccentric wheel 32. The balance wheel is elliptical, and a connection hole is arranged on one side of the midpoint of the line connecting the foci of the balance wheel; the balance wheel is connected to the drive shaft 12 through the connection hole. The line connecting the foci of the balance wheel and the hole of the eccentric wheel 32 are located on the same side of the drive shaft 12. Since the rotation center of the eccentric wheel 32 does not coincide with its geometric center, an unbalanced force pointing to its geometric center will be generated during rotation. If this unbalanced force is not balanced, it may cause vibration and instability of the entire needle punching assembly. The balance wheel is designed to be elliptical and is connected to the drive shaft 12 through the connection hole. When the eccentric wheel 32 rotates, the balance wheel also rotates at the same speed to generate a reaction force that is equal in magnitude and opposite in direction to the unbalanced force of the eccentric wheel 32. In this way, the two forces cancel each other out on the drive shaft 12, thereby reducing the vibration and imbalance of the entire needle punching assembly. A connection hole is arranged on one side of the line connecting the foci of the balance wheel to ensure that the balance wheel can maintain a stable posture during rotation and is firmly connected to the drive shaft 12. The implementation of the connection hole also allows for fine-tuning of the balance wheel when necessary to achieve the best balance effect. The implementation of the balance wheel effectively reduces the unbalanced force generated when the eccentric wheel 32 rotates, thereby reducing the vibration and noise of the needle punching assembly. This not only improves the stability and reliability of the equipment, but also improves the working environment and the comfort of the operator. Reducing vibration and unbalanced force can reduce wear and fatigue damage between equipment components, thereby extending the service life of the equipment. This is particularly important for needle punching equipment that needs to run for a long time. A stable needle punching process helps to improve the quality and consistency of products. Reducing vibration and unbalanced force can ensure that the piercing path of the needles in the fiber web is more accurate and controllable, thereby improving the interweaving effect of the fibers and the overall quality of the product.
[0028] In a possible embodiment, two needle plate mechanisms 3 and two bottom plate mechanisms 2 are included; the two needle plate mechanisms 3 are arranged between the two bottom plate mechanisms 2. Needles are arranged on the needle punching plate 7; needle holes corresponding to the needles are arranged on the needle hole plate 6. The two bottom plate mechanisms 2 not only provide a stable support platform for the fiber web, but also achieve precise control of the needle hole plate 6 through the coordinated action of the bottom plate connecting rod 4 and the cam 21 component. The reverse movement of the needle hole plate 6 and the needle punching plate 7 is realized by the bottom plate mechanism 2, and this reverse movement helps the needles to better penetrate the fiber web and drive the fibers to move.
[0029] This embodiment also provides a needle punching machine, and the needle punching machine includes the needle punching assembly of any of the above-mentioned solutions.
[0030] The needle punching assembly and the needle punching machine provided in this embodiment can achieve a deeper punching effect during operation through the opposite movement of the needle punching plate 7 and the needle hole plate 6. Compared with the separate movement of the needle punching plate 7 under the same conditions, it is beneficial to form a more compact three-dimensional network structure. The precise cooperation between the eccentric wheel 32 component and the cam 21 component ensures the reverse movement of the needle punching plate 7 and the needle hole plate 6, making the punching path of the needles in the fiber web more complex, and promoting the full interweaving and rearrangement of fibers. In addition, the implementation of the balance wheel effectively reduces the unbalanced force during the rotation of the eccentric wheel 32, reduces equipment vibration and noise, and improves the stability and reliability of the equipment. This needle punching assembly not only improves the product quality but also extends the service life of the equipment, providing a strong guarantee for the efficient and stable operation of the needle punching machine.
[0031] This specific embodiment is only an interpretation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. An acupuncture assembly, characterized in that: It includes a driving mechanism, a needle plate mechanism, a fixed beam and a bottom plate mechanism; the driving mechanism includes a driving wheel, a driving shaft and a mounting frame; a fixed bearing is provided on the mounting frame; the driving shaft is connected to the mounting frame through the fixed bearing; one end of the driving shaft is connected to the driving wheel; The needle plate mechanism comprises an eccentric wheel component and a needle plate connecting rod; the eccentric wheel component is connected to the needle plate connecting rod; the lower end of the needle plate connecting rod is connected to the acupuncture plate; the eccentric wheel component is connected to the driving shaft; the fixed beam is fixedly arranged below the driving shaft; the fixed beam is provided with a first sleeve; the first sleeve is sleeved on the needle plate connecting rod; the needle plate connecting rod is used to drive the acupuncture plate to move up and down; The bottom plate mechanism includes a cam component and a bottom plate connecting rod; the cam component is arranged on the driving shaft; the cam component is connected to the bottom plate connecting rod; the lower end of the bottom plate connecting rod is connected to the pinhole plate; the pinhole plate is arranged below the acupuncture plate; a second sleeve is also arranged on the fixed beam; the second sleeve is sleeved on the bottom plate connecting rod; the bottom plate connecting rod is used to drive the pinhole plate to move up and down; the pinhole plate and the acupuncture plate have opposite movement directions.
2. The acupuncture assembly according to claim 1, characterized in that: The eccentric wheel component includes a connecting rod arm and an eccentric wheel; the connecting rod arm includes a connecting portion and a disc portion; the disc portion is provided with a wheel cavity adapted to the eccentric wheel; the eccentric wheel is arranged in the wheel cavity; the disc portion is also provided with a penetrating wheel hole; the eccentric wheel is connected to the driving shaft; the connecting portion is hinged to the needle plate connecting rod.
3. The acupuncture assembly according to claim 2, characterized in that: An eccentric wheel bearing is arranged on the outer edge of the eccentric wheel.
4. The acupuncture assembly according to claim 3, characterized in that: The cam component comprises two cams arranged opposite to each other; a circular groove is arranged inside the cam; the center of the groove does not coincide with the center of the cam; a roller is arranged on the top of the bottom plate connecting rod; the roller is used to roll in the groove.
5. The acupuncture assembly according to claim 4, characterized in that: A fixed shaft is arranged on the top of the bottom plate connecting rod, and a bearing is sleeved on the fixed shaft; the roller is sleeved on the bearing; and a stop plate is also arranged between the roller and the bottom plate connecting rod.
6. The acupuncture assembly according to claim 4, characterized in that: It also includes a balance wheel; the balance wheel is arranged on the driving shaft; the balance wheel is used to balance the unbalanced force generated by the rotation of the eccentric wheel.
7. The acupuncture assembly according to claim 6, characterized in that: It comprises two needle plate mechanisms and two bottom plate mechanisms; the two needle plate mechanisms are arranged between the two bottom plate mechanisms.
8. The acupuncture assembly according to claim 1, characterized in that: The needle plate is provided with needles; the needle hole plate is provided with needle holes corresponding to the needles.