A needle-locked needle plate structure

Abstract

The utility model discloses a close needle type needle plate structure relates to computer flat knitting machine production technical field, including needle plate body, a plurality of inserts grooves are seted up on the needle plate body, be equipped with the insert in the insert groove, still include the fixed piece of positioning, the fixed piece of positioning is set in every two adjacent inserts between, just the fixed piece of positioning is located the insert tail portion. The close needle type needle plate structure provided by the utility model, through adding the fixed piece of positioning between every two adjacent inserts, can enhance the connecting strength between every two adjacent inserts, simultaneously, because the fixed piece of positioning of fixed thickness is added, fully guarantee the width of the gap between the insert and the insert, improve the precision of the gap between the insert and the insert, promote the stability when the insert works, make the insert and the needle more stable in the process of weaving, and then can promote the quality of the weaving production fabric.

Description

Technical Field

[0001] This utility model relates to the field of computerized flat knitting machine production technology, specifically to a dense needle plate structure. Background Technology

[0002] In computerized flat knitting machines, the needles are typically installed in needle slots, which are located on the needle plate. During operation, the needles are driven by a triangular mechanism to continuously extend and retract along the needle slots, ultimately completing the knitting process. Ultra-dense knitting, where the needles are arranged very closely together, produces a denser fabric.

[0003] On August 7, 2025, the applicant filed a utility model patent application with application number 2025216767712, entitled "An Improved Dense Needle Plate". During subsequent production, it was discovered that for ultra-dense needle knitting, the inserts are relatively thin and the spacing between them is quite close, resulting in insufficient strength. Furthermore, the installation precision requirements for the gaps between the inserts are high, and conventional installation structures cannot guarantee this precision. Therefore, this applicant proposes a dense needle plate structure to address the problems of thin inserts, close spacing between inserts, insufficient strength, and difficulty in guaranteeing installation gap precision under conventional installation structures. Utility Model Content

[0004] The purpose of this invention is to provide a dense needle plate structure, which aims to solve the problems of thin inserts, close spacing between inserts, insufficient strength, and difficulty in ensuring installation gap accuracy under conventional installation structures in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A dense needle plate structure includes a needle plate body with a plurality of insert slots on the needle plate body. Inserts are provided in the insert slots. The structure also includes a positioning and fixing piece, which is disposed between every two adjacent inserts and is located at the tail of the insert.

[0006] Preferably, a fixing wire is connected between several of the inserts, the fixing wire passes through several inserts, and the positioning fixing piece is connected to the fixing wire.

[0007] Preferably, a limiting steel wire is connected between several of the inserts, and an arc-shaped groove matching the limiting steel wire is provided on the positioning and fixing plate, and the positioning and fixing plate abuts against the limiting steel wire through the arc-shaped groove.

[0008] Preferably, the limiting steel wires are symmetrically arranged on both sides of the fixing steel wire, and the arc-shaped grooves are symmetrically arranged on both sides of the positioning and fixing plate, with the arc-shaped grooves on both sides respectively adapted to the limiting steel wires on both sides.

[0009] Preferably, an auxiliary fixing piece is also included, wherein a connecting steel wire is connected to the front end of the insert, the auxiliary fixing piece is connected to the connecting steel wire, and the auxiliary fixing piece is located between every two adjacent inserts.

[0010] Preferably, the auxiliary fixing plate is provided with an arc-shaped connecting part, and the front end of the insert is connected to a stabilizing steel wire, and the arc-shaped connecting part is adapted to the stabilizing steel wire.

[0011] Preferably, the device also includes a support fixing piece, on which a support wire is connected. The support wire is located in the middle of the insert, and the support fixing piece is connected to the support wire. The support fixing piece is connected between every two adjacent inserts via the support wire.

[0012] Preferably, the insert is connected with a positioning steel wire and a thick steel wire, and the support fixing plate is provided with a first arc-shaped part and a second arc-shaped part, the first arc-shaped part being adapted to the positioning steel wire, and the second arc-shaped part being adapted to the thick steel wire.

[0013] As one embodiment, the insert has a slot at its tail, and a plurality of positioning and fixing pieces are threaded through the limiting wire. The limiting wire is embedded in the slot, and the plurality of positioning and fixing pieces are respectively embedded in the gap between each pair of adjacent inserts.

[0014] As one embodiment, the insert has a slot in the middle, and a plurality of the supporting and fixing pieces are threaded through the positioning wire. The positioning wire is embedded in the slot, and the plurality of supporting and fixing pieces are respectively embedded in the gap between each pair of adjacent inserts.

[0015] In the above technical solution, the dense needle plate structure provided by this utility model has the following beneficial effects: This utility model enhances the connection strength between adjacent inserts by adding a positioning and fixing piece between each pair of adjacent inserts. At the same time, the addition of a positioning and fixing piece with a fixed thickness ensures the width of the gap between the inserts, improves the accuracy of the gap between the inserts, and enhances the stability of the inserts during operation. This makes the inserts and knitting needles more stable during the weaving process, thereby improving the quality of the woven fabric. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 A schematic diagram of one installation structure of the positioning and fixing piece provided in an embodiment of this utility model; Figure 3 A schematic diagram of one installation structure of the positioning and fixing piece provided in an embodiment of this utility model; Figure 4 A schematic diagram of another installation structure for the positioning and fixing piece provided in an embodiment of this utility model; Figure 5 This is a schematic diagram of the assembly structure provided for an embodiment of the present utility model; Figure 6 This is a schematic diagram of the installation structure of the positioning fixing piece and the auxiliary fixing piece provided in the embodiment of this utility model; Figure 7 This is an enlarged schematic diagram of point A provided in an embodiment of the present utility model; Figure 8 This is an enlarged schematic diagram of section B provided for an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Needle plate body; 2. Insert slot; 3. Insert; 31. Fixing wire; 32. Limiting wire; 33. Arc-shaped groove; 4. Positioning fixing piece; 5. Auxiliary fixing piece; 51. Connecting wire; 52. Arc-shaped connecting part; 53. Stabilizing wire; 6. Support fixing piece; 61. Supporting wire; 62. Positioning wire; 63. Coarse wire; 64. First arc-shaped part; 65. Second arc-shaped part. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Please see Figures 1-8 A dense needle plate structure includes a needle plate body 1, on which a plurality of insert slots 2 are provided, and inserts 3 are provided in the insert slots 2. It also includes a positioning and fixing piece 4, which is disposed between every two adjacent inserts 3 and is located at the tail of the insert 3.

[0021] As an embodiment provided by this utility model, such as Figure 4As shown, a number of insert slots 2 are provided on the needle plate body 1. The insert slots 2 are linearly arrayed on the needle plate body 1. The number of inserts 3 is adapted to the insert slots 2. The bottom of the inserts 3 is inserted into the insert slots 2.

[0022] A positioning and fixing piece 4 is provided between each pair of adjacent inserts 3. Preferably, the width of the positioning and fixing piece 4 is adapted to the spacing between each pair of adjacent inserts 3, so that when the positioning and fixing piece 4 is installed, the outer walls on both sides of the positioning and fixing piece 4 abut against the two adjacent inserts 3 respectively, thereby playing a supporting role and enhancing the connection strength between the two adjacent inserts 3.

[0023] As a further embodiment provided by this utility model, such as Figure 3 As shown, a fixing wire 31 is connected between the inserts 3. Specifically, the fixing wire 31 passes through all the inserts 3 and is located at the tail of the insert 3. A through hole is provided at the tail of the insert 3. The fixing wire 31 passes through the through hole of multiple inserts 3. The fixing wire 31 passes through multiple inserts 3, which can increase the connection strength between the inserts 3. A through hole for passing through the fixing wire 31 is provided on the positioning fixing piece 4. During installation, the positioning fixing piece 4 is first inserted between each two adjacent inserts 3, and then the fixing wire 31 is passed through the through hole and the through hole to connect each positioning fixing piece 4 to each two adjacent inserts 3.

[0024] To facilitate the installation of the positioning and fixing piece 4, such as Figure 3 As shown, a limiting steel wire 32 is connected between several inserts 3. The limiting steel wire 32 is connected to all inserts 3, which can enhance the connection strength between the inserts. An arc-shaped groove 33 is provided on the outer wall of the positioning and fixing piece 4. The arc-shaped groove 33 is adapted to the limiting steel wire 32. During installation, one of the positioning and fixing pieces 4 is inserted between two inserts 3. The arc-shaped groove 33 on the positioning and fixing piece 4 abuts against the limiting steel wire 32, which can provide auxiliary positioning when the positioning and fixing piece 4 is inserted between the inserts 3, which facilitates assembly.

[0025] Furthermore, such as Figure 3As shown, limiting steel wires 32 are symmetrically arranged on both sides of fixing steel wire 31, and arc-shaped grooves 33 are symmetrically arranged on both sides of positioning fixing piece 4. The arc-shaped grooves 33 on both sides are adapted to the limiting steel wires 32 on both sides. As an embodiment provided by this utility model, there are two limiting steel wires 32 and two arc-shaped grooves 33. The two limiting steel wires 32 are symmetrical about fixing steel wire 31. The arc-shaped grooves 33 on the positioning fixing piece 4 are located on both sides of the through hole, so that when the positioning fixing piece 4 is inserted between two insert pieces 3, the symmetrically arranged limiting steel wires 32 and arc-shaped grooves 33 can provide auxiliary positioning for the positioning fixing piece 4, which is convenient for installation. After all the positioning fixing pieces 4 are located between the insert pieces 3, the fixing steel wire 31 is passed through, so that all the positioning fixing pieces 4 are fixed between the insert pieces 3. During insertion, the symmetrically arranged limiting steel wires 32 and arc-shaped grooves 33 provide auxiliary positioning for the positioning fixing piece 4, which can make the through hole on the positioning fixing piece 4 and the through hole on the insert piece 3 accurately positioned, which is convenient for installation.

[0026] As one of the installation methods of the positioning and fixing piece 4 provided by this utility model, such as Figure 3 and Figure 2 As shown, the positioning and fixing piece 4 is inserted into the space between the insert pieces 3 from the side of the tail end of the insert piece 3. In this embodiment, the two limiting steel wires 32 are vertically distributed. When the positioning and fixing piece 4 is inserted into the gap between the two insert pieces 3, the limiting steel wires 32 and the arc-shaped groove 33 provide auxiliary positioning for the positioning and fixing piece 4. At this time, the bottom plane of the positioning and fixing piece 4 is flush with the tail end face of the insert piece 3, so that the positioning and fixing piece 4 is completely embedded in the gap between the two adjacent insert pieces 3 without affecting the original function of the insert piece 3. In this installation method, the positioning and fixing piece 4 is easy to install. Finally, the fixing steel wire 31 is passed through the insert piece 3 and the positioning and fixing piece 4 to complete the installation.

[0027] It should be noted that when the positioning and fixing piece 4 is inserted from the side for installation, the number of limiting steel wires 32 is not limited to two. The number of limiting steel wires 32 can be one, which is set on one side of the fixing steel wire 31. When there is one limiting steel wire 32, there is also one matching arc-shaped groove 33. During installation, after the positioning and fixing piece 4 is inserted into the gap between each pair of adjacent inserts 3, the limiting steel wire 32 is abutted by the arc-shaped groove 33. At this time, the bottom plane of the positioning and fixing piece 4 is positioned by the side wall of the tail of the insert 3. When the bottom plane of the positioning and fixing piece 4 is flush with the side wall of the tail of the insert 3, the positioning is completed. At this time, the through hole on the positioning and fixing piece 4 is aligned with the fixing steel wire 31. Finally, the fixing steel wire 31 is passed through the insert 3 and fixed to the positioning and fixing piece 4.

[0028] As another installation method of the positioning and fixing piece 4 provided by this utility model, such as Figure 1 , Figure 4 and Figure 5As shown, the positioning and fixing piece 4 is inserted from the top of the tail of the insert piece 3 into the space between the insert pieces 3. In this embodiment, the two limiting steel wires 32 are horizontally distributed. After the positioning and fixing piece 4 is inserted into the gap between the two insert pieces 3, the limiting steel wires 32 and the arc-shaped groove 33 provide auxiliary positioning for the positioning and fixing piece 4, so that the positioning and fixing piece 4 is completely embedded in the gap between the two adjacent insert pieces 3. Finally, the fixing steel wire 31 is passed through the insert piece 3 and the positioning and fixing piece 4 to complete the installation.

[0029] Preferably, the position of the through hole on the positioning and fixing piece 4 for connecting and fixing the steel wire 31 and the arc-shaped groove 32 can be changed according to production needs.

[0030] This utility model enhances the connection strength between adjacent inserts 3 by adding a positioning fixing piece 4 between each pair of adjacent inserts 3. At the same time, the addition of the positioning fixing piece 4 with a fixed thickness ensures the width of the gap between each pair of adjacent inserts 3, improves the accuracy of the gap between inserts 3, and enhances the stability of inserts 3 during operation. This makes inserts 3 and knitting needles more stable during the weaving process, thereby improving the quality of the woven fabric.

[0031] As a further embodiment provided by this utility model, such as Figure 5 As shown, it also includes an auxiliary fixing piece 5, with a connecting steel wire 51 passing through the front end of the insert 3. The connecting steel wire 51 is connected to several inserts 3 respectively, which can improve the strength of the inserts 3. The auxiliary fixing piece 5 is provided with a through hole, and the auxiliary fixing piece 5 is connected to the connecting steel wire 51 through the through hole. Preferably, the width of the auxiliary fixing piece 5 is adapted to the spacing between each pair of adjacent inserts 3, so that after the auxiliary fixing piece 5 is inserted between each pair of adjacent inserts 3, the outer walls on both sides of the auxiliary fixing piece 5 can abut against the inserts 3 on the adjacent sides respectively, thereby improving the structural strength between the two adjacent inserts 3, preventing the front end of the insert 3 from shaking during use, and ensuring the gap width between the front ends of the two adjacent inserts 3.

[0032] Furthermore, such as Figure 5 As shown, an arc-shaped connecting part 52 is provided on the auxiliary fixing plate 5, and a stabilizing steel wire 53 is connected to the front end of the insert 3. Specifically, there are two stabilizing steel wires 53, which are located on both sides of the connecting steel wire 51. The number of arc-shaped connecting parts 52 is adapted to the number of stabilizing steel wires 53. The two arc-shaped connecting parts 52 are located on both sides of the through hole of the auxiliary fixing plate 5, so that they can be adapted to the two stabilizing steel wires 53 respectively.

[0033] It should be noted that the number of stabilizing steel wires 53 is not limited to two; the number of stabilizing steel wires 53 can be one. When the number of stabilizing steel wires 53 is one, an arc-shaped connecting part 52 is provided on the auxiliary fixing plate 5. During installation, the arc-shaped connecting part 52 on the auxiliary fixing plate 5 is brought into contact with the stabilizing steel wire 53. At this time, the bottom plane of the auxiliary fixing plate 5 and the top of the insert 3 are used for auxiliary positioning, which facilitates installation.

[0034] Furthermore, the positions of the through holes and the arc-shaped connecting parts 52 on the auxiliary fixing piece 5 can be adjusted according to the needle type and production requirements. The position of the through holes is not limited to being located between the two arc-shaped connecting parts 52, but can be set on one side of the two arc-shaped connecting parts 52.

[0035] During installation, the auxiliary fixing piece 5 is first inserted between each pair of adjacent insert pieces 3. During insertion, the arc-shaped connecting part 52 abuts against the stabilizing steel wire 53, providing initial positioning of the auxiliary fixing piece 5. At this point, the bottom plane of the auxiliary fixing piece 5 is flush with the top of the insert piece 3, and the auxiliary fixing piece 5 is completely embedded in the gap between each pair of adjacent insert pieces 3, without affecting the original function of the insert piece 3. After all the auxiliary fixing pieces 5 are inserted, the connecting steel wire 51 is finally passed through to connect all the auxiliary fixing pieces 5 to all the insert pieces 3, preventing the insert pieces 3 from coming out.

[0036] As a further embodiment of the present invention, it also includes a support fixing piece 6, and a support steel wire 61 is connected to the insert 3. The support fixing piece 6 is connected to the support steel wire 61 through the through hole. The support steel wire 61 passes through several inserts 3, which can improve the structural strength of the insert 3. The support steel wire 61 can be set in the middle position of the insert 3. Together with the connecting steel wire 51 at the front end of the insert 3 and the fixing steel wire 31 at the rear end, it can improve the structural strength of the front, rear, and middle parts of the insert 3. At the same time, it can ensure the gap width between the front, middle, and rear (tail) parts of two adjacent inserts 3, and ensure that the gap width between the front and rear ends of two adjacent inserts 3 is consistent.

[0037] Furthermore, such as Figure 5 As shown, a positioning wire 62 and a thicker wire 63 are also connected to the insert 3 for connecting multiple inserts 3. A first arc-shaped portion 64 and a second arc-shaped portion 65 are provided on the support fixing plate 6. Both the first arc-shaped portion 64 and the second arc-shaped portion 65 are groove structures. The first arc-shaped portion 64 is adapted to the positioning wire 62, and the second arc-shaped portion 65 is adapted to the thicker wire 63. During installation, one of the support fixing plates 6 is first inserted between two inserts 3. The first arc-shaped portion 64 abuts against the positioning wire 62, and the second arc-shaped portion 65 abuts against the thicker wire 63. At this time, the bottom plane of the support fixing plate 6 is flush with the top of the insert 3, so that the support fixing plate 6 is embedded in the gap between two adjacent inserts 3, without affecting the function of the insert 3.

[0038] It should be noted that the positioning steel wire 62 and the thick steel wire 63 can be selected to be set. The first arc-shaped part 64 and the second arc-shaped part 65 on the support fixing plate 6 are set accordingly. During installation, the first arc-shaped part 64 or the second arc-shaped part 65 on the support fixing plate 6 is brought into contact with the stabilizing steel wire 53. At this time, the bottom plane of the support fixing plate 6 and the top of the insert 3 are used for auxiliary positioning, which can ensure that the through hole on the support fixing plate 6 is aligned with the support steel wire 61, which facilitates installation.

[0039] The position of the through hole on the support fixing piece 6 can be set according to the needle type or production requirements. It is not limited to being located between the first arc-shaped part 64 and the second arc-shaped part 65, but can be set on one side of the first arc-shaped part 64 and the second arc-shaped part 65.

[0040] Preferably, the width of the support fixing piece 6 is adapted to the gap between two adjacent insert pieces 3, so that the outer walls on both sides of the support fixing piece 6 can abut against the two adjacent insert pieces 3 respectively, providing stable support.

[0041] With the positioning fixing piece 4, auxiliary fixing piece 5 and support fixing piece 6 provided in this embodiment of the utility model, when the knitting needle is damaged, it is not necessary to replace the knitting needle with the positioning fixing piece 4, auxiliary fixing piece 5 and support fixing piece 6, which facilitates maintenance.

[0042] It should be noted that, for ease of demonstration, in the accompanying drawings provided by this utility model, one of the inserts 3 located at the end is omitted from the linearly arrayed inserts 3.

[0043] The positioning fixing piece 4, supporting fixing piece 6, and auxiliary fixing piece 5 provided in this embodiment of the present invention can be selectively set according to the needle type requirements. Only the positioning fixing piece 4 can be set, or a combination of the positioning fixing piece 4, supporting fixing piece 6, or positioning fixing piece 4 and auxiliary fixing piece 5 can be selected, or all three can be set. Furthermore, the positioning fixing piece 4, supporting fixing piece 6, and auxiliary fixing piece 5 provided in this embodiment of the present invention can be arbitrarily combined and set between every two adjacent inserts 3.

[0044] Those skilled in the art will understand that other similar connection methods can also achieve this utility model. For example, after the insert 3 is produced, before it is assembled with the needle plate body 1, the positioning fixing piece 4, the support fixing piece 6 and the auxiliary fixing piece 5 are directly set on one side of the corresponding part of the insert 3 by welding, riveting, bonding and other methods. After the insert 3 is finally assembled with the needle plate body 1, a preset precision gap is naturally formed between the insert 3 and the insert 3.

[0045] As a further embodiment provided by this utility model, such as Figure 6 , Figure 7and Figure 8 As shown, in order to improve the ease of assembly and installation efficiency of the positioning fixing piece 4 and the supporting fixing piece 6, a notch can be made on the insert piece 3 at the location for installing the positioning fixing piece 4 and the supporting fixing piece 6, as shown. Figure 7 and Figure 8 The slot shown is for installing the positioning fixing piece 4 and the support fixing piece 6.

[0046] In this embodiment, when installing the positioning fixing piece 4, several positioning fixing pieces 4 can first be threaded onto one of the limiting steel wires 32, while the other limiting steel wire 32 is threaded onto multiple insert pieces 3. During installation, one of the limiting steel wires 32 is inserted into the groove at the tail of the insert piece 3, and then each positioning fixing piece 4 is inserted into the gap between each two adjacent insert pieces 3, so that the arc-shaped groove 33 on the positioning fixing piece 4 abuts against the other limiting steel wire 32, thus completing the initial fixing of the positioning fixing piece 4. Subsequently, each positioning fixing piece 4 is initially fixed, and finally, the fixing steel wire 31 is passed through all the insert pieces 3 and positioning fixing pieces 4 to complete the fixing of the positioning fixing piece 4.

[0047] In this embodiment, when installing the support fixing plate 6, several support fixing plates 6 are threaded onto the positioning steel wire 62, and then the positioning steel wire 62 is embedded into the groove of the corresponding position of the insert 3. Subsequently, each support fixing plate 6 is inserted into the gap between each two adjacent inserts 3, so that the second arc-shaped part 65 on the support fixing plate 6 engages with the thick steel wire 63 originally threaded on the insert 3, thus completing the initial fixing of the support fixing plate 6. Then, all the support fixing plates 6 are initially fixed in sequence. Finally, the support steel wire 61 is passed through all the inserts 3 and support fixing plates 6 to complete the fixing of the support fixing plate 6.

[0048] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dense needle plate structure, comprising a needle plate body (1), wherein a plurality of insert slots (2) are provided on the needle plate body (1), and inserts (3) are provided in the insert slots (2), characterized in that, It also includes a positioning and fixing piece (4), which is disposed between each two adjacent inserts (3) and is located at the tail of the insert (3).

2. The dense needle plate structure according to claim 1, characterized in that, A fixing wire (31) is connected between several inserts (3), the fixing wire (31) passes through several inserts (3), and the positioning fixing piece (4) is connected to the fixing wire (31).

3. The dense needle plate structure according to claim 2, characterized in that, A limiting wire (32) is connected between several inserts (3), and an arc-shaped groove (33) matching the limiting wire (32) is provided on the positioning and fixing piece (4). The positioning and fixing piece (4) abuts against the limiting wire (32) through the arc-shaped groove (33).

4. The dense needle plate structure according to claim 3, characterized in that, The limiting steel wire (32) is symmetrically arranged on both sides of the fixing steel wire (31), and the arc-shaped groove (33) is symmetrically arranged on both sides of the positioning and fixing piece (4). The arc-shaped groove (33) on both sides is adapted to the limiting steel wire (32) on both sides respectively.

5. The dense needle plate structure according to claim 1, characterized in that, It also includes a support fixing piece (6), on which a support wire (61) is connected. The support wire (61) is located in the middle of the insert (3). The support fixing piece (6) is connected to the support wire (61). The support fixing piece (6) is connected between each two adjacent inserts (3) through the support wire (61).

6. The dense needle plate structure according to claim 5, characterized in that, The insert (3) is connected to a positioning wire (62) and a thick wire (63). The support fixing plate (6) is provided with a first arc-shaped part (64) and a second arc-shaped part (65). The first arc-shaped part (64) is adapted to the positioning wire (62), and the second arc-shaped part (65) is adapted to the thick wire (63).

7. The dense needle plate structure according to claim 1, characterized in that, It also includes an auxiliary fixing piece (5), the front end of the insert (3) is connected to a connecting wire (51), the auxiliary fixing piece (5) is connected to the connecting wire (51), and the auxiliary fixing piece (5) is located between every two adjacent inserts (3).

8. The dense needle plate structure according to claim 7, characterized in that, The auxiliary fixing plate (5) is provided with an arc-shaped connecting part (52), and the front end of the insert (3) is connected to a stabilizing steel wire (53). The arc-shaped connecting part (52) is adapted to the stabilizing steel wire (53).

9. The dense needle plate structure according to claim 3, characterized in that, The insert (3) has a slot at its tail, and several positioning and fixing pieces (4) are inserted through the limiting wire (32). The limiting wire (32) is embedded in the slot, and several positioning and fixing pieces (4) are respectively embedded in the gap between each two adjacent inserts (3).

10. The dense needle plate structure according to claim 6, characterized in that, The insert (3) has a slot in the middle, and several support fixing pieces (6) are inserted through the positioning wire (62). The positioning wire (62) is embedded in the slot, and several support fixing pieces (6) are respectively embedded in the gap between each two adjacent inserts (3).

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