General needle plate structure of a looping machine and looping machine

Abstract

The utility model provides a kind of general needle plate structure and set-up machine of set-up machine, belong to set-up machine technical field.It solves how to improve the efficiency of sewing etc technical problems.The general needle plate structure of this set-up machine includes small needle plate and big needle plate, small needle plate is rotatably installed on big needle plate, at least two positioning pins are equipped on big needle plate, card slot one, card slot two and card slot three are equipped on small needle plate, positioning pin can be respectively with card slot one, card slot two and card slot three Card connects, when small needle plate rotates, positioning pin can be respectively inserted into card slot one and card slot two, or positioning pin can be respectively inserted into card slot two and card slot three.The utility model can be with card slot one, card slot two and card slot three on small needle plate Card connects, realize the sewing of weaving and knitting by one small needle plate, without replacing small needle plate to realize the switching of two modes, greatly improve the efficiency of sewing.

Description

Technical Field

[0001] This utility model belongs to the technical field of knotting machines, and relates to a needle plate structure for needle shuttle knitting and a knotting machine. Background Technology

[0002] A bartacking machine is a machine used to reinforce fabrics, handling various sewing scenarios such as denim, woven fabrics, knitted fabrics, and button sewing. Different small needle plates are needed for different sewing scenarios. Currently, these small needle plates are fixed with screws, which are small and time-consuming to replace, requiring a special screwdriver. Modern bartacking machines integrate knitting and woven fabrics into a single machine, and existing small needle plates cannot meet the requirements of bartacking machines that combine knitting and woven fabrics.

[0003] Patent application number 202421648104.9 discloses a quick-change structure for a small needle plate and a sewing machine. The quick-change structure for a small needle plate includes a needle plate fixing seat and a small needle plate. A locking pin and a locking hole are provided between the needle plate fixing seat and the small needle plate. The locking hole includes an insertion part and a limiting part. When the small needle plate is rotated relative to the needle plate fixing seat, the locking pin enters the limiting part from the insertion part. The limiting part is used to prevent the locking pin from disengaging from the locking hole.

[0004] The quick-change needle plate structure in the aforementioned literature can achieve rapid disassembly and assembly, but it still has shortcomings. The quick-change structure only achieves the mechanical fixing function, and users still need to prepare two kinds of needle plates and switch sewing modes by completely replacing them, which is inefficient. Summary of the Invention

[0005] This utility model addresses the aforementioned problems in existing technologies by providing a universal needle plate structure for a bartacking machine and a bartacking machine itself. The technical problem this utility model aims to solve is how to improve sewing efficiency.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A universal needle plate structure for a knotting machine is characterized by comprising a small needle plate and a large needle plate, wherein the small needle plate is rotatably mounted on the large needle plate, the large needle plate is provided with at least two positioning pins, and the small needle plate is provided with a first slot, a second slot, and a third slot, wherein the positioning pins can respectively engage with the first slot, the second slot, and the third slot, and when the small needle plate rotates, the positioning pins can respectively engage with the first slot and the second slot, or the positioning pins can respectively engage with the second slot and the third slot.

[0008] Its working principle is as follows: The positioning pin plays the role of positioning and installation. The positioning pin can engage with slot 1, slot 2 and slot 3 on the small needle plate, so that the small needle plate can be rotated to the large needle plate for positioning and fixation. When the small needle plate rotates, when the positioning pin is engaged with slot 1 and slot 2 respectively, the direction of the thread groove of the small needle plate can meet the needs of woven sewing. When the positioning pin is engaged with slot 2 and slot 3 respectively, the direction of the thread groove of the small needle plate can meet the needs of knitting sewing. The sewing of woven and knitted fabrics can be realized through a small needle plate. The two modes can be switched without replacing the small needle plate, which greatly improves the sewing efficiency.

[0009] In the general needle plate structure of the above-mentioned knotting machine, the small needle plate is provided with a guide part and a snap-fit ​​part. The guide part and the snap-fit ​​part are both located in the first snap-fit ​​groove, the second snap-fit ​​groove, and the third snap-fit ​​groove. The guide part and the snap-fit ​​part are connected. The width of the guide part is greater than or equal to the width of the snap-fit ​​part. When the small needle plate is installed on the large needle plate, the positioning pin enters from the guide part. By rotating the small needle plate, the positioning pin is snapped into the snap-fit ​​part and snapped together.

[0010] The width of the guide section is greater than or equal to the width of the locking section, which allows the positioning pin on the large needle plate to directly enter the slot through the guide section. When the small needle plate is rotated, the positioning pin is locked into the locking section and locked together, thus realizing the installation and fixation of the small needle plate and the large needle plate. When switching between needle and shuttle knitting modes, the small needle plate can be picked up and rotated to complete the switch, which significantly improves the operating efficiency.

[0011] In the general needle plate structure of the above-mentioned knotting machine, one end of the positioning pin has a stop part, the stop part and the positioning pin are an integral structure, the width of the stop part is less than or equal to the width of the first slot, the second slot and the third slot, and the stop part can be engaged with the first slot, the second slot and the third slot.

[0012] The width of the blocking part is less than or equal to the width of slot one, slot two and slot three, so that the blocking part can enter the slot and engage with the slot respectively, thereby making the small needle plate stably installed on the large needle plate.

[0013] In the general needle plate structure of the above-mentioned knotting machine, the first, second and third slots are all provided with stepped surfaces, the bottom end of the blocking part abuts against the top end of the stepped surface, and the two sides of the locking part are arc surfaces or straight surfaces.

[0014] The bottom end of the blocking part abuts against the top end of the step surface, so that the positioning pin can be accurately engaged in the locking part. The two sides of the locking part are curved, so that the locking pin is engaged more smoothly, or the two sides of the locking part are straight, so that the two are engaged more stably.

[0015] In the general needle plate structure of the above-mentioned knotting machine, the first, second and third slots are arranged in a ring on the small needle plate, and there are two positioning pins, which are symmetrically arranged on the large needle plate.

[0016] The three slots, slot 1, slot 2, and slot 3, are arranged in a ring to facilitate the rotational connection between the small needle plate and the large needle plate. There are two locating pins that are symmetrically distributed to enhance the stability of the connection between the two, making the structure more reliable.

[0017] In the general needle plate structure of the above-mentioned knotting machine, the large needle plate is provided with a thread-cutting boss, the thread-cutting boss is separately set from the small needle plate, and the large needle plate and the thread-cutting boss are integrally formed or fixedly connected.

[0018] By placing the thread-cutting boss on the large needle plate, the structure of the small needle plate is simplified, the versatility is improved, and the connection between the small needle plate and the large needle plate is more stable. The large needle plate and the thread-cutting boss are integrally formed or fixedly connected, which improves the stability of the connection between the large needle plate and the thread-cutting boss.

[0019] Another objective of this utility model is to provide a knotting machine, which includes the general needle plate structure of any of the above-mentioned knotting machines.

[0020] Compared with the prior art, the advantages of this utility model are as follows:

[0021] 1. When this small needle plate rotates, the positioning pins are engaged in slot one and slot two respectively, and the direction of the thread groove of the small needle plate can meet the requirements of woven sewing. When the positioning pins are engaged in slot two and slot three respectively, the direction of the thread groove of the small needle plate can meet the requirements of knitting sewing. Weaving and knitting sewing can be achieved through a small needle plate without the need to replace the small needle plate to switch between the two modes, which greatly improves the efficiency of sewing.

[0022] 2. The width of this guide section is greater than or equal to the width of the locking section, which allows the positioning pin on the large needle plate to directly enter the slot through the guide section. When the small needle plate is rotated, the positioning pin is locked into the locking section and locked together, thus realizing the installation and fixation of the small needle plate and the large needle plate. When switching between needle and shuttle knitting modes, the small needle plate can be picked up and rotated to complete the switch, which significantly improves the operating efficiency.

[0023] 3. The thread-cutting boss is set on the large needle plate, which simplifies the structure of the small needle plate, improves versatility, and makes the connection between the small needle plate and the large needle plate more stable. The large needle plate and the thread-cutting boss are integrally formed or fixedly connected, which improves the stability of the connection between the large needle plate and the thread-cutting boss. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the general needle plate structure of this knotting machine.

[0025] Figure 2 This is a schematic diagram of the small needle plate structure of the general needle plate structure of this knotting machine.

[0026] Figure 3 This is a schematic diagram of the large needle plate structure of the general needle plate structure of this knotting machine.

[0027] Figure 4 This is a schematic diagram of the large needle plate structure of the general needle plate structure of this knotting machine.

[0028] In the diagram, 1 is the small needle plate; 2 is the large needle plate; 3 is the positioning pin; 4 is the first slot; 5 is the second slot; 6 is the third slot; 7 is the guide part; 8 is the snap-fit ​​part; 9 is the blocking part; 10 is the stepped surface; and 11 is the wire-cutting boss. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] Example 1

[0031] like Figure 1 and 3 As shown, it includes a small needle plate 1 and a large needle plate 2. The small needle plate 1 is rotatably mounted on the large needle plate 2. The large needle plate 2 is provided with at least two positioning pins 3. The small needle plate 1 is provided with a first slot 4, a second slot 5, and a third slot 6. The positioning pins 3 can be engaged with the first slot 4, the second slot 5, and the third slot 6 respectively. When the small needle plate 1 rotates, the positioning pins 3 can be engaged with the first slot 4 and the second slot 5 respectively, or the positioning pins 3 can be engaged with the second slot 5 and the third slot 6 respectively. The positioning pin 3 serves for positioning and installation. The positioning pin 3 can engage with slot 4, slot 5, and slot 6 on the small needle plate 1, thereby allowing the small needle plate 1 to rotate onto the large needle plate 2 for positioning and fixation. When the small needle plate 1 rotates, the positioning pin 3 engages with slot 4 and slot 5 respectively, so that the direction of the thread groove of the small needle plate 1 can meet the requirements for woven sewing. When the positioning pin 3 engages with slot 5 and slot 6 respectively, the direction of the thread groove of the small needle plate 1 can meet the requirements for knitted sewing. By using a small needle plate 1, both woven and knitted sewing can be achieved without replacing the small needle plate 1 to switch between the two modes, which greatly improves the efficiency of sewing.

[0032] like Figure 1 and 2As shown, the small needle plate 1 is provided with a guide part 7 and a locking part 8. Both the guide part 7 and the locking part 8 are located in the first locking groove 4, the second locking groove 5, and the third locking groove 6. The guide part 7 and the locking part 8 are connected. The width of the guide part 7 is greater than or equal to the width of the locking part 8. When the small needle plate 1 is installed on the large needle plate 2, the positioning pin 3 enters from the guide part 7. By rotating the small needle plate 1, the positioning pin 3 is locked into the locking part 8 and engaged. The width of the guide part 7 is greater than or equal to the width of the locking part 8, which facilitates the positioning pin 3 on the large needle plate 2 to directly enter the locking groove through the guide part 7. By rotating the small needle plate 1, the positioning pin 3 is locked into the locking part 8 and engaged, thus realizing the installation and fixation of the small needle plate 1 and the large needle plate 2. When switching the needle weaving mode, the small needle plate 1 can be picked up and rotated to complete the switch, which significantly improves the operating efficiency.

[0033] like Figure 1 and 3 As shown, one end of the positioning pin 3 has a stop portion 9, which is an integral part of the positioning pin 3. The width of the stop portion 9 is less than or equal to the width of the first slot 4, the second slot 5, and the third slot 6, allowing the stop portion 9 to engage with the first slot 4, the second slot 5, and the third slot 6. The width of the stop portion 9 being less than or equal to the width of the first slot 4, the second slot 5, and the third slot 6 facilitates the insertion of the stop portion 9 into the slots. The stop portion 9 can engage with the slots respectively, thereby ensuring the small needle plate 1 is stably mounted on the large needle plate 2.

[0034] like Figure 1 and 2 As shown, slot 1 (4), slot 2 (5), and slot 3 (6) are all provided with stepped surfaces 10. The bottom end of the abutting part 9 abuts against the top end of the stepped surface 10, and the two sides of the engaging part 8 are either curved or straight. The bottom end of the abutting part 9 abuts against the top end of the stepped surface 10, so that the positioning pin 3 can be accurately engaged in the engaging part 8. The two sides of the engaging part 8 are curved, so that the engagement of the positioning pin 3 is smoother, or the two sides of the engaging part 8 are straight, so that the engagement between the two is more stable.

[0035] like Figure 1-3 As shown, slots 1 (4), 2 (5), and 3 (6) are arranged in a ring on the small needle plate 1. There are two positioning pins 3, which are symmetrically arranged on the large needle plate 2. The ring arrangement of slots 1 (4), 2 (5), and 3 (6) facilitates the rotational connection between the small needle plate 1 and the large needle plate 2. The two symmetrically distributed positioning pins 3 enhance the stability of the connection between the two, making the structure more reliable.

[0036] like Figure 4As shown, the large needle plate 2 is provided with a thread-cutting boss 11. The thread-cutting boss 11 is separately set from the small needle plate 1. The large needle plate 2 and the thread-cutting boss 11 are either integrally formed or fixedly connected. Setting the thread-cutting boss 11 on the large needle plate 2 simplifies the structure of the small needle plate 1, improves versatility, and makes the connection between the small needle plate 1 and the large needle plate 2 more stable. The integrally formed structure or fixed connection between the large needle plate 2 and the thread-cutting boss 11 improves the stability of the connection between the two.

[0037] Example 2

[0038] The general content of this embodiment is the same as that of embodiment 1, except that: in this embodiment, a bar knotting machine is provided, including the general needle plate structure of any of the bar knotting machines in embodiment 1.

[0039] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A universal needle plate structure for a bar knotting machine, characterized in that, The device includes a small needle plate (1) and a large needle plate (2). The small needle plate (1) is rotatably mounted on the large needle plate (2). The large needle plate (2) is provided with at least two positioning pins (3). The small needle plate (1) is provided with a first slot (4), a second slot (5), and a third slot (6). The positioning pins (3) can be engaged with the first slot (4), the second slot (5), and the third slot (6) respectively. When the small needle plate (1) rotates, the positioning pins (3) can be engaged with the first slot (4) and the second slot (5) respectively, or the positioning pins (3) can be engaged with the second slot (5) and the third slot (6) respectively.

2. The universal needle plate structure of a knotting machine according to claim 1, characterized in that, The small needle plate (1) is provided with a guide part (7) and a snap-fit ​​part (8). The guide part (7) and the snap-fit ​​part (8) are both located in the first slot (4), the second slot (5) and the third slot (6). The guide part (7) and the snap-fit ​​part (8) are connected. The width of the guide part (7) is greater than or equal to the width of the snap-fit ​​part (8). When the small needle plate (1) is installed on the large needle plate (2), the positioning pin (3) enters from the guide part (7). By rotating the small needle plate (1), the positioning pin (3) is snapped into the snap-fit ​​part (8) and snapped together.

3. The universal needle plate structure of a knotting machine according to claim 2, characterized in that, One end of the positioning pin (3) has a stop part (9), the stop part (9) and the positioning pin (3) are an integral structure, the width of the stop part (9) is less than or equal to the width of the first slot (4), the second slot (5) and the third slot (6), and the stop part (9) can be engaged with the first slot (4), the second slot (5) and the third slot (6).

4. The universal needle plate structure of a knotting machine according to claim 3, characterized in that, The first slot (4), the second slot (5) and the third slot (6) are all provided with stepped surfaces (10), the bottom end of the blocking part (9) abuts against the top end of the stepped surface (10), and the two sides of the locking part (8) are arc surfaces or straight surfaces.

5. The universal needle plate structure of a knotting machine according to claim 1, characterized in that, The first slot (4), the second slot (5) and the third slot (6) are arranged in a ring on the small needle plate (1). There are two positioning pins (3), and the two positioning pins (3) are symmetrically arranged on the large needle plate (2).

6. The universal needle plate structure of a knotting machine according to claim 1, characterized in that, The large needle plate (2) is provided with a thread-cutting boss (11), which is separated from the small needle plate (1). The large needle plate (2) and the thread-cutting boss (11) are integrally formed or fixedly connected.

7. A knotting machine, characterized in that, The knotting machine includes the universal needle plate structure as described in any one of claims 1-6.

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