Needling structure for special-shaped component prefabricated body

By designing a needle punching structure with a sliding connection between the support rod and the needle plate, the problems of low efficiency and numerous defects in existing needle punching machines when processing carbon fiber products are solved, enabling efficient processing of irregularly shaped components, especially curved irregularly shaped components.

CN223866910UActive Publication Date: 2026-02-03JIANGSU MIG NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520157711.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-02-03
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Existing needle punching machines are inefficient and prone to defects when processing carbon fiber products, and are not suitable for irregularly shaped components, especially curved irregularly shaped components.

Method used

By designing a needle-punching structure for prefabricated irregular components, a support rod and a needle plate are slidably connected. The height of the support rod is adjustable. Combined with a limiting part and fasteners, the needle tip is ensured to fit the prefabricated material, reducing the probability of needle breakage. This structure is suitable for processing curved irregular components.

Benefits of technology

It improves the production efficiency of the needle punching machine, reduces the possibility of needle damage, and can effectively process curved and irregularly shaped components.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223866910U_ABST
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Abstract

The needling structure comprises a needling needle, a needle plate and a supporting rod, the needling needle is installed on the supporting rod, the supporting rod is connected with the needle plate in a sliding mode, a limiting part is arranged on the needle plate, and the limiting part is used for fixing the position of the supporting rod on the needle plate. The puncture needle has the advantages that the position of the needle point is more attached to a prefabricated body material by adjusting the position of the needle point of the puncture needle, the probability of needle breakage is reduced, the prefabricated body production efficiency is improved, and the puncture needle can be suitable for machining curved-surface special-shaped components.
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Description

Technical Field

[0001] This application relates to the technical field of composite material processing, and in particular to a needle-punching structure for prefabricated irregularly shaped components. Background Technology

[0002] Carbon fiber refers to high-strength, high-modulus fibers with a carbon content of over 90%. It is made from acrylic and viscose fibers through high-temperature oxidation and carbonization. It is a lightweight, high-strength, wear-resistant, and high-temperature resistant material. Most carbon fiber products are processed using needle punching machines. However, the needle punching machines currently used have low production efficiency and are prone to defects such as stacking and unevenness of needle punched products. Furthermore, they are not suitable for irregularly shaped components.

[0003] To address this issue, patent CN208293210U discloses a needle-punching machine for ring-shaped products, comprising a fixed frame, a needle beam, a needle-punching rotation mechanism, and a clamping mechanism. The fixed frame houses the needle-punching rotation mechanism, the needle beam is positioned above the needle-punching rotation mechanism, and the clamping mechanism is located on the left side of the needle-punching rotation mechanism. This utility model provides a needle-punching machine for ring-shaped products with a compact structure, facilitating needle-punching of tubular fabrics or non-woven materials, and solving the problem that traditional needle-punching machines cannot needle-punch ring-shaped products.

[0004] However, although the needle punching machine for ring-shaped products mentioned above solves the problem that traditional needle punching machines cannot punch ring-shaped products, the device is inefficient in use and can only produce regular ring-shaped products. Utility Model Content

[0005] To address the shortcomings of existing technologies, one of the objectives of this application is to provide a needle-punching structure for prefabricated irregularly shaped components. This structure allows for adjustment of the needle tip position to better fit the prefabricated material, reducing the possibility of needle breakage and thus accelerating prefabricated component production efficiency. It is also suitable for processing curved irregularly shaped components.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A needle-punching structure for prefabricated irregular-shaped components includes a needle, a needle plate, and a support rod. The needle is mounted on the support rod, and the support rod and the needle plate are slidably connected. The needle plate is provided with a limiting part for fixing the position of the support rod on the needle plate.

[0008] By adopting the above technical solution, the support rod and the needle plate are slidably connected, so that the height of the support rod can be adjusted under the action of other forces. The limiting part limits the position of the support rod, so that the position of the support rod can be fixed, thereby making the height of the needle adjustable, making the position of the needle tip more closely fit the precast material, reducing the possibility of needle breakage, thereby speeding up the production efficiency of precast bodies, and making it suitable for processing curved and irregularly shaped components.

[0009] In a preferred embodiment, this application may be further configured such that: the support rod has a movable part and a fastener, the movable part and the fastener are used to cooperate with the support rod to clamp the needle, the movable part and the support rod are detachably connected, and the fastener is used to make the support rod and the movable part abut against each other.

[0010] By adopting the above technical solution, the movable part and the support rod are detachable, making it more convenient to install the needle, and the movable part and the support rod can hold the needle under the action of fasteners.

[0011] In a preferred embodiment, the present application may be further configured such that the needle has a pressure-bearing portion, which is used to distribute the pressure on the needle and prevent the needle from falling off the support rod.

[0012] By adopting the above technical solution, the pressure on the pressure-bearing part of the puncture needle is reduced, thus reducing the probability of needle damage.

[0013] In a preferred embodiment, this application can be further configured such that the support rod and the movable part are provided with a groove 1 and a groove 2, the groove 1 being used to accommodate the needle and the groove 2 being used to accommodate the pressure-bearing part on the needle, and the groove 1 and the groove 2 forming an installation groove.

[0014] By adopting the above technical solution, the second groove reduces the probability of the needle coming out when it exits the precast body by accommodating the pressure-bearing part.

[0015] In a preferred embodiment, this application can be further configured such that the height of the starting section of the second slot is not lower than the height of the ending section.

[0016] By adopting the above technical solution, the needle is more securely mounted in the mounting groove.

[0017] In a preferred embodiment, this application may be further configured to include a base with a receiving hole for receiving a portion of the support rod.

[0018] In a preferred embodiment, this application can be further configured such that: the support rod and the movable part are provided with threads, the limiting part and the support rod are threadedly connected, and the fastener is threadedly connected to the support rod and the movable part. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the support rod installation structure of this application.

[0021] Figure 3 This is a schematic diagram of the structure of an embodiment of this application in its working state.

[0022] Figure 4 This is a schematic diagram of the support rod structure of this application.

[0023] Figure 5 This is a schematic diagram of the support rod from another perspective.

[0024] Figure 6 This is a schematic diagram of the activity department structure of this application.

[0025] Figure 7 This is a structural diagram of the activity department from another perspective.

[0026] Reference numerals: 1. Base; 11. Receiving hole; 2. Needle plate; 21. Limiting part; 3. Needle; 31. Pressure bearing part; 4. Support rod; 41. Movable part; 42. Fastener; 5. Groove one; 6. Groove two. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1 to 7 This application discloses a needle-punching structure for prefabricated irregularly shaped components, comprising a base 1, a needle plate 2, a plurality of needles 3, and a support rod 4. The base 1 is provided with a plurality of receiving holes 11 for accommodating a portion of the support rod 4. The needles 3 are mounted on the support rod 4. The needle plate 2 is provided with a limiting part 21. The needle plate 2 and the support rod 4 are slidably connected. The limiting part 21 is used to fix the position of the support rod 4 on the needle plate 2. In this embodiment, the number of needles 3, support rod 4, and limiting part 21 can be set as needed. The support rod 4 and the limiting part 21 are threadedly connected. The limiting part 21 can be a nut. The limiting part 21 is provided on both sides of the needle plate 2.

[0029] The needle 3 is provided with a pressure-bearing part 31, which is used to disperse the pressure on the needle 3 and prevent the needle 3 from falling off the support rod 4.

[0030] The support rod 4 is provided with a movable part 41 and a fastener 42. The movable part 41 and the support rod 4 are detachably connected. The support rod 4 and the movable part 41 are provided with a first groove 5 and a second groove 6, which form an installation groove for holding the needle 3. The fastener 42 is used to make the support rod 4 and the movable part 41 abut against each other, so that the installation groove abuts against the needle 3. The movable part 41 is provided with threads, and the fastener 42 is threadedly connected to the support rod 4 and the movable part 41. In this embodiment, the fastener 42 can be a nut, and the part of the support rod 4 and the movable part 41 that contacts the fastener 42 can be provided with a tapered thread.

[0031] The mounting groove includes two sets of groove 5 and groove 6. One set of groove 5 and groove 6 is located on the support rod 4, and the other set is located on the movable part 41. Groove 5 is used to accommodate the needle 3, and groove 6 is used to accommodate the pressure-bearing part 31 on the needle 3. The height of the starting section of groove 6 is not lower than the height of the end, so that the needle 3 is more secure in the mounting groove.

[0032] When installing the needle 3, place the needle 3 and the pressure bearing part 31 into the installation groove, rotate the fastener 42 to bring the movable part 41 and the support rod 4 closer to each other, so that the needle 3 is clamped on the support rod 4.

[0033] When installing the support rod 4, one end of the support rod 4 is inserted into the limiting part 21, and the limiting part 21 on one side of the needle plate 2 is rotated so that the support rod 4 slides up and down along the needle plate 2. When the support rod 4 is adjusted to a suitable position, the limiting part 21 on the other side of the needle plate 2 is rotated so that the support rod 4 is fixed on the needle plate 2. The lower end of the support rod 4 extends into the receiving hole 11 of the base 1. The receiving hole 11 provides a certain space for the adjustment of the support rod 4.

[0034] The implementation principle of this embodiment is as follows: by adjusting the height of the support rod 4 on the needle plate 2, the horizontal position of the needle tip 3 at different parts can be adjusted, so that the height of the needle tip 3 to the main body of the precast component is more consistent, thereby making the needles 3 at each part contact the precast material synchronously, making the pressure on the needles 3 more consistent, reducing the probability of needle breakage, and speeding up the production speed of the precast component.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A needle-punching structure for prefabricated irregularly shaped components, characterized in that: It includes a needle (3), a needle plate (2) and a support rod (4). The needle (3) is mounted on the support rod (4). The support rod (4) and the needle plate (2) are slidably connected. The needle plate (2) is provided with a limiting part (21) to fix the position of the support rod (4) on the needle plate (2).

2. The needle-punching structure for prefabricated irregularly shaped components according to claim 1, characterized in that: The support rod (4) is provided with a movable part (41) and a fastener (42). The movable part (41) and the fastener (42) are used to cooperate with the support rod (4) to clamp the needle (3). The movable part (41) and the support rod (4) are detachably connected. The fastener (42) is used to make the support rod (4) and the movable part (41) abut against each other.

3. The needle-punching structure for prefabricated irregularly shaped components according to claim 2, characterized in that: The needle (3) is provided with a pressure-bearing part (31), which is used to disperse the pressure on the needle (3) and prevent the needle (3) from falling off the support rod (4).

4. The needle-punching structure for prefabricated irregularly shaped components according to claim 3, characterized in that: The support rod (4) and the movable part (41) are provided with a first groove (5) and a second groove (6). The first groove (5) is used to accommodate the needle (3), and the second groove (6) is used to accommodate the pressure-bearing part (31) on the needle (3). The first groove (5) and the second groove (6) form an installation groove.

5. The needle-punching structure for prefabricated irregularly shaped components according to claim 4, characterized in that: The height of the starting section of the second (6) channel is not lower than the height of the end section.

6. The needle-punching structure for prefabricated irregularly shaped components according to claim 1, characterized in that: It is also provided with a base (1), and the base (1) has a receiving hole (11) for receiving a part of the support rod (4).

7. The needle-punching structure for prefabricated irregularly shaped components according to claim 2, characterized in that: The support rod (4) and the movable part (41) are provided with threads, the limiting part (21) and the support rod (4) are threadedly connected, and the fastener (42) is threadedly connected to the support rod (4) and the movable part (41).

Citation Information

Patent Citations

  • Needle loom of annular product

    CN208293210U