Clothing garment sleeve sewing cloth conveying auxiliary structure

Abstract

The utility model belongs to the technical field of clothing sleeve sewing auxiliary tool, and relates to cloth conveying auxiliary structure for clothing sleeve sewing. The structure is composed of sewing main body, transmission assembly, linkage assembly, conveying assembly and sewing support frame. Transmission assembly is connected with sewing needle, converts the vertical motion of sewing needle into power transmission to linkage assembly, linkage assembly drives conveying assembly again, realizes the automatic conveying of cloth along the outer end surface of sewing support frame. The structure solves the problem that cloth conveying needs manual control in the process of clothing sleeve sewing, which easily leads to unstable sewing quality and efficiency, improves the automation degree, sewing quality and efficiency of sleeve sewing.

Description

Technical Field

[0001] This application relates to the field of auxiliary tools for sewing sleeves, specifically to a fabric conveying auxiliary structure for sewing garment sleeves. Background Technology

[0002] In the process of sewing garment sleeves, fabric feeding is a crucial step. Traditional sleeve sewing mainly relies on manual control of fabric feeding and its speed. However, this manual operation method has many drawbacks. On the one hand, due to the uncertainty of human operation, the fabric feeding speed is difficult to precisely match the sewing frequency of the sewing machine, resulting in unstable sewing quality and problems such as uneven stitches and fabric wrinkles. On the other hand, manually controlling fabric feeding increases the workload of operators and is inefficient, making it difficult to meet the needs of large-scale production.

[0003] Therefore, in order to improve the quality and efficiency of garment sleeve sewing, there is an urgent need for an auxiliary structure that can automatically and precisely control the fabric feeding to solve various problems caused by manual operation. Summary of the Invention

[0004] In view of the above-mentioned technical problems, this application solves the problems of unstable sewing quality and low efficiency caused by manual control of fabric feeding during the sewing of garment sleeves.

[0005] To achieve the above objectives, the technical solution adopted in this application is: a fabric conveying auxiliary structure for sewing garment sleeves, including a sewing body, a transmission component, a linkage component, a conveying component, and a sewing support frame.

[0006] The sewing support is fixedly installed on the sewing body, and the top of the sewing support is provided with a through groove for sewing needles.

[0007] The transmission assembly includes a connecting rod, a push-pull rod, a mounting shaft, and a single-stage tooth. The connecting rod is fixedly mounted on the sewing needle of the sewing body and moves vertically with the sewing needle. The push-pull rod is mounted on the connecting rod and has multiple through holes. Each through hole has a mounting shaft installed on it, and each mounting shaft has a rotatable single-stage tooth. The single-stage tooth is used to transmit power to the linkage assembly.

[0008] The linkage component includes a mounting bracket, a rotating shaft, and a ratchet. The mounting bracket is fixedly mounted on the sewing body, the rotating shaft is rotatably mounted on the through hole of the mounting bracket, and the ratchet is fixedly mounted on the input end of the rotating shaft. The rotating shaft is a one-way toothed shaft, used to receive power transmitted by a single-stage tooth in one direction.

[0009] The conveying assembly includes an inner shaft, a left connecting rod, an outer shaft, a roller, and a right connecting rod. The inner shaft is rotatably mounted on the sewing body. The left and right connecting rods are both rotatably mounted on the inner shaft. An outer shaft is inserted into a through hole at the end of the left and right connecting rods away from the inner shaft. Each outer shaft is equipped with a roller. The gap between the roller and the sewing support is controlled by the left and right connecting rods. The roller is used to drive the fabric on the sewing support to be conveyed along the outer end face of the sewing support.

[0010] Preferably, the transmission assembly includes a plug rod and a connecting plate. The top of the push-pull rod is provided with a through hole, the plug rod is inserted into the through hole of the push-pull rod, the connecting plate is welded to the end of the plug rod, and the ends of the connecting rod, the connecting plate and the push-pull rod that are in contact with each other are provided with threaded holes.

[0011] Preferably, the transmission assembly includes a fastening nut and a small torsion spring. One end of the mounting shaft is provided with a thread and a groove. The fastening nut engages with the thread of the mounting shaft to fix the position of the mounting shaft on the push-pull rod. The groove on the mounting shaft engages with a slider on the through hole of the push-pull rod to restrict the rotation of the mounting shaft on the push-pull rod. The small torsion spring is sleeved on the end of the mounting shaft away from the push-pull rod. The two ends of the small torsion spring are respectively fixedly connected to the end of the mounting shaft and the end of the single-stage tooth for resetting the single-stage tooth.

[0012] Preferably, the push-pull rod is fixedly provided with multiple limiting blocks to limit the movement range of the single-stage tooth.

[0013] Preferably, the linkage assembly includes two sprockets, both of which are fixedly installed at the output end of the rotating shaft and connected to the conveying assembly via a chain, and are used to drive the left and right connecting rods to rotate respectively.

[0014] Preferably, the conveying assembly includes two outer connecting rods, both of which are sleeved on the end of the inner shaft away from the rotating shaft, and the ends of the two outer connecting rods away from the inner shaft are respectively sleeved on the two outer shafts. The outer connecting rods are used to restrict the ends of the outer shafts away from the roller shaft.

[0015] Preferably, the conveying assembly includes a support rod and two large torsion springs. The support rod is fixedly mounted on the mounting bracket. The inner shaft is mounted on the through hole of the support rod. The two large torsion springs are respectively sleeved on both sides of the support rod on the inner shaft. Both large torsion springs are fixedly connected to the support rod. The ends of the two large torsion springs away from the support rod are respectively fixedly connected to the left connecting rod and the right connecting rod.

[0016] The technical solution provided in this application has the following advantages compared with the prior art:

[0017] 1. This application achieves the conversion of the vertical motion of the sewing needle into power transmission to the linkage component by connecting the connecting rod, push-pull rod, single-stage tooth head and sewing needle in the transmission component. This solves the problem of the power source for fabric conveying, improves the coordination between fabric conveying and sewing operation, ensures that the conveying frequency matches the sewing frequency, and improves sewing efficiency.

[0018] 2. This application achieves unidirectional power transmission and effective drive by setting ratchet, shaft and sprocket in the linkage component, and cooperating with the transmission component and conveying component. It solves the problem of fabric conveying direction and stability, improves the accuracy of fabric conveying, avoids reverse movement in the fabric conveying process, and ensures sewing quality.

[0019] 3. This application achieves automatic fabric conveying and pressing / releasing by designing the inner shaft, connecting rod, outer shaft, roller shaft and related reset structure in the conveying assembly. It solves the uncertainty problem of manual fabric conveying, improves the automation level of fabric conveying, reduces the difficulty of manual operation, and ensures the synchronization of fabric conveying by utilizing the friction force generated by close contact. Attached Figure Description

[0020] 101-Base; 102-Sewing machine; 201-Connecting rod; 202-Telescopic rod; 203-Insertion rod; 204-Connecting plate; 205-Push-pull rod; 206-Mounting shaft; 207-Fasting nut; 208-Single-stage toothed head; 209-Small torsion spring; 210-Limiting block; 301-Mounting frame; 302-Rotating shaft; 303-Ratchet; 304-Sprocket; 305-Limiting plate; 401-Support rod; 402-Inner shaft; 403-Left connecting rod; 404-Outer shaft; 405-Roller shaft; 406-Right connecting rod; 407-Outer connecting rod; 408-Large torsion spring; 501-Sewing support frame.

[0021] In the picture: Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a structural schematic diagram of the sewing support frame of this application;

[0023] Figure 3 for Figure 2 Enlarged view of the local structure at point A;

[0024] Figure 4 for Figure 2 Enlarged view of the local structure at point B;

[0025] Figure 5 This is a schematic diagram of the structure of the rotating shaft in this application;

[0026] Figure 6 This is a schematic diagram of the structure for mounting the shaft in this application;

[0027] Figure 7 This is a schematic diagram of the structure of the delivery component in this application;

[0028] Figure 8 This is a schematic diagram showing the state of the roller shaft and sewing support frame in this application. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] like Figures 1 to 8 As shown, the fabric conveying auxiliary structure for sewing garment sleeves includes a sewing body, a transmission component, a linkage component, a conveying component, and a sewing support frame 501.

[0032] Specifically, the sewing machine body includes a base 101 and a sewing machine 102, with the sewing machine 102 fixedly mounted on the base 101.

[0033] like Figure 1 and Figure 2 As shown, the sewing support frame 501 is fixedly installed on the sewing body. The top of the sewing support frame 501 has a through groove for sewing needles. In use, the sleeve and main body of the garment to be sewn are placed on the sewing support frame 501. Then, the sewing machine is brought close to the groove of the sewing support frame 501, causing the sewing machine's needle to press against the fabric, thus starting the sewing machine to begin sewing. The sewing machine's related threading structure is located inside the annular structure of the sewing support frame 501. The sewing work is achieved through the through groove at the top of the sewing support frame 501 and the engagement of the needle.

[0034] like Figure 2As shown, the transmission assembly includes a connecting rod 201, a push-pull rod 205, a mounting shaft 206, and a single-stage toothed head 208. The connecting rod 201 is fixedly mounted on the sewing needle of the sewing machine body and moves vertically with the sewing needle. The push-pull rod 205 is mounted on the connecting rod 201. A telescopic rod 202 is fixedly mounted on one end of the connecting rod 201 near the push-pull rod 205. The upper end of the telescopic rod 202 is fixedly mounted inside the sewing machine. The telescopic rod 202 moves vertically in coordination with the connecting rod 201 by extending and retracting, thus supporting this end of the connecting rod 201 and keeping it horizontal. The push-pull rod 205 has multiple through holes, each with a mounting shaft 206. Each mounting shaft 206 has a rotatably mounted single-stage toothed head 208, which transmits power to the linkage assembly.

[0035] Specifically, the single-stage toothed head 208 is toothed and tilted upwards during installation. When the push-pull rod 205 moves vertically upwards, the linkage component is gradually pushed by multiple single-stage toothed heads 208, so that the linkage component continuously receives power and drives the conveying component to convey the fabric a certain distance. The specific distance is controlled by the meshing ratio of the linkage component and the multiple single-stage toothed heads 208, as well as the power transmission ratio between the linkage component and the conveying component.

[0036] like Figure 5 As shown, the linkage component includes a mounting bracket 301, a rotating shaft 302, and a ratchet 303. The mounting bracket 301 is fixedly mounted on the sewing body. The rotating shaft 302 is rotatably mounted on the through hole of the mounting bracket 301. The ratchet 303 is fixedly mounted on the input end of the rotating shaft 302. The rotating shaft 302 is a one-way tooth, used to receive the power transmitted by the single-stage tooth head 208 in one direction.

[0037] Specifically, when the single-stage tooth 208 is vertically upward, it pushes the ratchet 303 on the rotating shaft 302, thereby causing the ratchet 303 to drive the rotating shaft 302 to rotate on the mounting bracket 301, so that the linkage component receives power.

[0038] like Figure 7 As shown, the conveying assembly includes an inner shaft 402, a left connecting rod 403, an outer shaft 404, a roller 405, and a right connecting rod 406. The inner shaft 402 is rotatably mounted on the sewing body. The left connecting rod 403 and the right connecting rod 406 are both rotatably mounted on the inner shaft 402. An outer shaft 404 is inserted into a through hole at the end of the left connecting rod 403 and the right connecting rod 406 away from the inner shaft 402. Each outer shaft 404 is equipped with a roller 405. The gap between the roller 405 and the sewing support 501 is controlled by the left connecting rod 403 and the right connecting rod 406. The roller 405 is used to drive the fabric on the sewing support 501 to be conveyed along the outer end face of the sewing support 501.

[0039] Specifically, the linkage component rotates the outer shaft 404 on the rollers 405 located on both sides of the sewing support frame 501 in the chain-driven conveying component, such as... Figure 8 In the indicated state, the rollers 405 on both sides of the sewing support 501 rotate synchronously and in the same direction, thereby driving the fabric on the sewing support 501 to move in one direction along the outer end of the sewing support 501, realizing the conveying of the sleeve fabric during the sewing process. The conveying is coordinated with the sewing frequency of the sewing machine, so that the fabric conveying and conveying speed do not need to be controlled manually during the sewing process, avoiding the quality and efficiency problems caused by the uncertainty of human operation.

[0040] Before use, before placing the fabric onto the sewing support frame 501, the operator manually presses down the rollers 405 on both sides, thereby controlling the left connecting rod 403 and the right connecting rod 406 to rotate on the inner shaft 402. This causes the rollers 405 on both sides to move downward away from the sewing support frame 501, no longer contacting it, creating space to facilitate the placement of the fabric onto the sewing support frame 501. After placement, the pressure on the rollers 405 is released, and the reset structure on the inner shaft 402 controls the left connecting rod 403 and the right connecting rod 406 to reset, causing the rollers 405 on both sides to move closer to the sewing support frame 501 and press the fabric on the sewing support frame 501 firmly. This prevents the fabric from moving during sewing and uses the friction generated by the close contact to drive the subsequent synchronous conveying of the fabric.

[0041] like Figure 2 As shown, the transmission assembly includes a plug rod 203 and a connecting plate 204. The top of the push-pull rod 205 has a through hole, and the plug rod 203 is inserted into this through hole. The connecting plate 204 is welded to the end of the plug rod 203 to limit its installation position within the through hole of the push-pull rod 205. The ends of the connecting rod 201, the connecting plate 204, and the push-pull rod 205 that come into contact with each other are all provided with threaded holes. Bolts are inserted into these threaded holes to secure the connection between the connecting rod 201, the connecting plate 204, and the push-pull rod 205.

[0042] Specifically, during installation, the left end of the connecting rod 201 is connected to the upper end of the sewing needle via a snap fastener. The right end of the connecting rod 201 has a rectangular groove, and the through hole at the upper end of the push-pull rod 205 and the shape of the insert rod 203 match this rectangular groove. Thus, when the insert rod 203 is inserted into the through hole at the upper end of the push-pull rod 205 and the groove at the right end of the connecting rod 201, the rectangular structure restricts the push-pull rod 205 and the connecting rod 201, preventing wobbling. Both the upper end of the push-pull rod 205 and the right end of the connecting rod 201 have threaded holes that match the connecting plate 204. After the insert rod 203 is inserted into the push-pull rod 205 and the connecting rod 201, the threaded holes automatically align. Then, bolts and nuts are screwed in to tighten the connecting rod 201, the push-pull rod 205, and the connecting plate 204, completing the installation.

[0043] like Figure 5 and Figure 6 As shown, the transmission assembly includes a fastening nut 207 and a small torsion spring 209. One end of the mounting shaft 206 is provided with threads and a groove. The fastening nut 207 engages with the thread of the mounting shaft 206 to fix the position of the mounting shaft 206 on the push-pull rod 205. The groove on the mounting shaft 206 also engages with the slider on the through hole of the push-pull rod 205 to restrict the rotation of the mounting shaft 206 on the push-pull rod 205. The small torsion spring 209 is sleeved on the end of the mounting shaft 206 away from the push-pull rod 205. The two ends of the small torsion spring 209 are fixedly connected to the ends of the mounting shaft 206 and the single-stage tooth 208, respectively, for the reset of the single-stage tooth 208.

[0044] Specifically, a mounting shaft 206, a fastening nut 207, a single-stage toothed head 208, and a small torsion spring 209 form a set of unidirectional drive units. Multiple unidirectional drive units are set at the lower end of the push-pull rod 205. The gap between adjacent unidirectional drive units can be customized according to the production needs of the enterprise, so as to cooperate with the tooth pitch of the ratchet 303 in the linkage component to realize the adjustment of the transmission ratio, thereby realizing the control of the fabric conveying distance during sewing.

[0045] When the push-pull rod 205 moves downward, the single-stage tooth 208 is pushed by the ratchet 303 to rotate significantly on the mounting shaft 206. When the single-stage tooth 208 rotates, it drives the small torsion spring 209 to twist. Thus, when the single-stage tooth 208 disengages from the ratchet 303, it is reset by the elastic force of the small torsion spring 209.

[0046] In use, the transmission component moves vertically following the sewing needle. When the sewing needle is vertically downward, the one-way drive unit on the push-pull rod 205 does not drive the linkage component. When the sewing needle moves vertically upward, the one-way drive unit on the push-pull rod 205 drives the linkage component, and drives the two rollers 405 in the conveying component to rotate through the chain, thus driving the fabric to move. This conveying frequency is adapted to the sewing operation.

[0047] like Figure 5 As shown, multiple limiting blocks 210 are fixedly installed on the push-pull rod 205 to limit the movement range of the single-stage tooth 208.

[0048] Specifically, when the sewing needle moves upward, the single-stage toothed head 208 contacts the teeth of the ratchet 303, pushing the single-stage toothed head 208 to rotate on the mounting shaft 206. This causes the single-stage toothed head 208 to contact the limiting block 210 on the push-pull rod 205. The limiting block 210 prevents the single-stage toothed head 208 from rotating on the mounting shaft 206. As a result, the single-stage toothed head 208, driven by the push-pull rod 205, pushes the teeth of the ratchet 303 upward, causing the ratchet 303 to drive the rotating shaft 302 to rotate on the mounting bracket 301. When the sewing needle moves downward, the push-pull rod 205 drives the single-stage toothed head 208 to contact the teeth of the ratchet 303 downward, still causing the single-stage toothed head 208 to rotate on the mounting shaft 206, but in the opposite direction. At this time, the single-stage toothed head 208 is far from the upper limit block 210, and the ratchet 303 cannot push the single-stage toothed head 208 to contact the limit block 210. Thus, the single-stage toothed head 208 can directly bypass the ratchet 303, and through the friction between the rotating shaft 302 and the mounting bracket 301, the ratchet 303 and the rotating shaft 302 will not be driven.

[0049] like Figure 5 As shown, the linkage assembly includes two sprockets 304 and a limiting plate 305. The two sprockets 304 are fixedly installed at the output end of the rotating shaft 302 and connected to the conveying assembly via a chain, respectively driving the left connecting rod 403 and the right connecting rod 406 to rotate.

[0050] Specifically, a limit plate 305 is provided on the side of the mounting bracket 301 to restrict the lower end of the push-pull rod 205 and keep it moving vertically. The end of the rotating shaft 302 away from the ratchet 303 is connected to the chain through two sprockets 304, thereby driving the outer shafts 404 on both sides of the conveying assembly for subsequent fabric conveying.

[0051] like Figure 7 As shown, the conveying assembly includes two outer connecting rods 407. Both outer connecting rods 407 are sleeved on the end of the inner shaft 402 away from the rotating shaft 302. The ends of the two outer connecting rods 407 away from the inner shaft 402 are respectively sleeved on two outer shafts 404. The outer connecting rods 407 are used to limit the end of the outer shaft 404 away from the roller shaft 405.

[0052] Specifically, the inner shaft 402 and the outer shafts 404 on both sides are mounted on the base 101. The base 101 is provided with arc-shaped grooves to accommodate and restrict the movement of the ends of the outer shafts 404 on both sides, and to prevent the overall force imbalance of the outer shafts 404. When the operator controls the rollers 405 on both sides to move downward, the rollers 405 push the left end of the outer shaft 404 downward, the middle of the outer shaft 404 pushes the left connecting rod 403 and the right connecting rod 406 to rotate on the inner shaft 402, and the right end of the outer shaft 404 pushes the outer connecting rod 407 to rotate on the inner shaft 402. The outer connecting rod 407 connects the right end of the outer shaft 404 to the inner shaft 402, further ensuring the force balance of the two ends of the outer shaft 404.

[0053] like Figure 7 As shown, the conveying assembly includes a support rod 401 and two large torsion springs 408. The support rod 401 is fixedly mounted on the mounting bracket 301. The inner shaft 402 is mounted on the through hole of the support rod 401. The two large torsion springs 408 are respectively sleeved on both sides of the support rod 401 on the inner shaft 402. Both large torsion springs 408 are fixedly connected to the support rod 401. The ends of the two large torsion springs 408 away from the support rod 401 are respectively fixedly connected to the left connecting rod 403 and the right connecting rod 406.

[0054] Specifically, when the roller 405 is pressed down, the two outer shafts 404 push the left connecting rod 403 and the right connecting rod 406 to rotate around the axis of the inner shaft 402, and twist the two large torsion springs 408 connected to them. Thus, after the roller 405 is released from pressing, the elastic force generated by the two large torsion springs 408 pushes the left connecting rod 403 and the right connecting rod 406 to reset, thereby causing the roller 405 to reset and move closer to the sewing support frame 501.

[0055] It is worth noting that this utility model mainly addresses the technical problems in the background section. The specification clearly describes the targeted core technical means designed to solve the technical problem, and fully elaborates on the specific process by which the core technical means acts on the technical problem, as well as the logical link through which the core technical means ultimately produces innovative and beneficial effects, clearly presenting the correspondence between "technical problem - technical means - technical effect".

[0056] The following is a detailed explanation of the two scenarios in this embodiment that are unrelated to the core solution of this utility model:

[0057] 1. Other technical problems not intended to be solved by this utility model: Such technical problems are not included in the protection scope of this utility model, and the corresponding technical means belong to the category of existing mature technology. Those skilled in the art can directly obtain and apply the corresponding technical means to solve other technical problems not intended to be solved by this utility model based on common knowledge (such as conventional design methods commonly used in the industry) or published existing technical documents (such as authorized patents, technical manuals, academic papers, etc.). Whether or not this part is disclosed does not affect the full disclosure of the technical solution of this utility model itself.

[0058] 2. New technical problems arising during the application of the present utility model: If new technical problems arise during the application of the present utility model, and this application does not provide a targeted further optimization solution, it is assumed that those skilled in the art can directly solve the new technical problems arising during the application of the present utility model by selecting appropriate conventional technical means based on common knowledge or existing technical literature. There is no situation where the core technical solution of the present utility model cannot be implemented because the technical means for the derived problem are not mentioned in this application.

[0059] Regarding the performance and parameters of the parts involved in this utility model's technical solution, the specification has clearly defined their core functional requirements. Those skilled in the art, combining conventional specifications in mechanical design (such as GB / T series national standards), parts selection manuals (such as industry-standard hardware and transmission component parameter manuals), and conventional installation and debugging experience, can reasonably determine and debug the specific performance indicators and parameter values ​​that meet the above functional requirements. This does not rely on "the special experience of the operator," and there is no problem of the technical solution being unachievable due to malfunctions caused by unclear part performance or parameters, or by special extreme limiting conditions.

Claims

1. A fabric conveying auxiliary structure for sewing garment sleeves, characterized in that, It includes a sewing body, a transmission assembly, a linkage assembly, a conveying assembly, and a sewing support frame (501). The sewing support frame (501) is fixedly installed on the sewing body, and the top of the sewing support frame (501) is provided with a through groove for sewing needles to sew. The transmission assembly includes a connecting rod (201), a push-pull rod (205), a mounting shaft (206), and a single-stage tooth (208). The connecting rod (201) is fixedly mounted on the sewing needle of the sewing body and moves vertically with the sewing needle. The push-pull rod (205) is mounted on the connecting rod (201). The push-pull rod (205) is provided with multiple through holes, and a mounting shaft (206) is installed in each through hole. A single-stage tooth (208) is rotatably provided on each mounting shaft (206). The single-stage tooth (208) is used to transmit power to the linkage assembly. The linkage component includes a mounting bracket (301), a rotating shaft (302), and a ratchet (303). The mounting bracket (301) is fixedly mounted on the sewing body. The rotating shaft (302) is rotatably mounted on the through hole of the mounting bracket (301). The ratchet (303) is fixedly mounted on the input end of the rotating shaft (302). The rotating shaft (302) is a one-way tooth, used to receive power transmitted by the single-stage tooth head (208) in one direction. The conveying assembly includes an inner shaft (402), a left connecting rod (403), an outer shaft (404), a roller (405), and a right connecting rod (406). The inner shaft (402) is rotatably mounted on the sewing body. The left connecting rod (403) and the right connecting rod (406) are both rotatably mounted on the inner shaft (402). An outer shaft (404) is inserted into a through hole at the end of the left connecting rod (403) and the right connecting rod (406) away from the inner shaft (402). Each outer shaft (404) is provided with a roller (405). The gap between the roller (405) and the sewing support (501) is controlled by the left connecting rod (403) and the right connecting rod (406). The roller (405) is used to drive the fabric on the sewing support (501) to be conveyed along the outer end face of the sewing support (501).

2. The fabric conveying auxiliary structure for sewing garment sleeves according to claim 1, characterized in that, The transmission assembly includes a plug rod (203) and a connecting plate (204). The top of the push-pull rod (205) is provided with a through hole. The plug rod (203) is inserted into the through hole of the push-pull rod (205). The connecting plate (204) is welded to the end of the plug rod (203). The ends of the connecting rod (201), the connecting plate (204) and the push-pull rod (205) that come into contact with each other are all provided with threaded holes.

3. The fabric conveying auxiliary structure for sewing garment sleeves according to claim 1, characterized in that, The transmission assembly includes a fastening nut (207) and a small torsion spring (209). One end of the mounting shaft (206) is provided with a thread and a groove. The fastening nut (207) is threaded with the mounting shaft (206) to fix the position of the mounting shaft (206) on the push-pull rod (205). The groove on the mounting shaft (206) is engaged with the slider on the through hole of the push-pull rod (205) to restrict the rotation of the mounting shaft (206) on the push-pull rod (205). The small torsion spring (209) is sleeved on the end of the mounting shaft (206) away from the push-pull rod (205). The two ends of the small torsion spring (209) are fixedly connected to the ends of the mounting shaft (206) and the single-stage tooth (208) respectively, for the reset of the single-stage tooth (208).

4. The fabric conveying auxiliary structure for sewing garment sleeves according to claim 1, characterized in that, Multiple limiting blocks (210) are fixedly installed on the push-pull rod (205) to limit the movement range of the single-stage tooth (208).

5. The fabric conveying auxiliary structure for sewing garment sleeves according to claim 1, characterized in that, The linkage component includes two sprockets (304), both of which are fixedly installed at the output end of the rotating shaft (302) and connected to the conveying component via a chain, respectively for driving the left connecting rod (403) and the right connecting rod (406) to rotate.

6. The fabric conveying auxiliary structure for sewing garment sleeves according to claim 1, characterized in that, The conveying assembly includes two outer connecting rods (407), both of which are sleeved on the end of the inner shaft (402) away from the rotating shaft (302). The ends of the two outer connecting rods (407) away from the inner shaft (402) are respectively sleeved on the two outer shafts (404). The outer connecting rods (407) are used to limit the end of the outer shaft (404) away from the roller shaft (405).

7. The fabric conveying auxiliary structure for sewing garment sleeves according to claim 1, characterized in that, The conveying assembly includes a support rod (401) and two large torsion springs (408). The support rod (401) is fixedly mounted on the mounting bracket (301). The inner shaft (402) is mounted on the through hole of the support rod (401). The two large torsion springs (408) are respectively sleeved on both sides of the support rod (401) on the inner shaft (402). The two large torsion springs (408) are fixedly connected to the support rod (401). The ends of the two large torsion springs (408) away from the support rod (401) are fixedly connected to the left connecting rod (403) and the right connecting rod (406) respectively.

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