Feeding device of buttonholing machine and buttonholing machine

Abstract

The utility model relates to the technical field of clothing manufacturing equipment, in particular to a feeding device of a buttonholing machine and the buttonholing machine, the feeding device comprises a buttonholing machine main body and a feeding device main body, the feeding device main body comprises a feeding bottom plate which is movably arranged on one side of the bottom of the buttonholing machine main body through a linear motor; a first tightening fixing mechanism and a second tightening fixing mechanism which are symmetrically distributed are arranged at the two ends of the side, close to the buttonholing machine body, of the feeding bottom plate correspondingly, and each of the first tightening fixing mechanism and the second tightening fixing mechanism comprises an air cylinder fixing base fixedly installed on the feeding bottom plate. According to the feeding device of the whole buttonholing machine, automatic tightening and fixing can be achieved in one step through the two sets of telescopic air cylinders, the structure is simpler and more effective, meanwhile, it is avoided that a large amount of space of the top face of the feeding bottom plate is occupied, the cost of the feeding device of the whole buttonholing machine is reduced, and the feeding efficiency is improved. And hindrance is effectively prevented from being formed on buttonhole needle running.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing manufacturing equipment, and particularly relates to a feeding device of a buttonholing machine and a buttonholing machine. Background Art

[0002] A buttonholing machine system generally consists of nine major mechanisms: a feeding mechanism, a hook needle mechanism, a needle bar mechanism, a fabric tensioning mechanism, a hook shuttle mechanism, an upper knife mechanism, a sliding table mechanism, a thread separating mechanism, and a top thread automatic cutting device. Each mechanism has its own characteristics and functions and is relatively independent, but they work closely together and coordinate with each other. The main function of the feeding mechanism in the buttonholing machine is to ensure that the sewing material can be accurately and efficiently fed into the sewing area, thereby ensuring the quality and efficiency of sewing.

[0003] After retrieval, the application document with the publication number CN212025587U discloses a feeding device of a buttonholing machine and a buttonholing machine. The feeding device of the buttonholing machine and the buttonholing machine can flatten and tension the cloth part under the sewing needle of the buttonholing machine body, and the position of the buttonhole processed by the buttonholing machine body is not easily deviated, thereby ensuring the product quality.

[0004] However, there are still certain defects and deficiencies that need to be optimized. Specifically, the feeding device of the buttonholing machine and the buttonholing machine mainly rely on a vertical air cylinder that drives a pressing strip to move downward to press the bottom plate, two moving frames movably connected to the pressing strip, pressing rollers respectively installed on the two moving frames, and drivers that respectively drive the two moving frames to move. The bottom plate is fixedly connected to the slider of a linear motor, and the movement direction of the slider of the linear motor is consistent with the cloth feeding direction and drives the bottom plate to move along the cloth feeding direction. The cloth is laid flat on the bottom plate, and the pressing strip is pushed downward by the vertical air cylinder to press the cloth, and then the driver drives the pressing roller to move to further flatten and tension the cloth. After the cloth is tensioned, the linear motor drives the bottom plate to move along the feeding direction. Among them, the structures such as multiple groups of drivers and moving frames are relatively complex, and at the same time, they occupy a large amount of space on the top surface of the bottom plate, resulting in not only high cost but also easy obstruction to the buttonholing needle movement of the feeding device of the buttonholing machine. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a feeding device of a buttonholing machine and a buttonholing machine, which effectively solve the problems that in the existing feeding device of a buttonholing machine and a buttonholing machine, the structures such as multiple groups of drivers and moving frames are relatively complex, and at the same time, they occupy a large amount of space on the top surface of the bottom plate, resulting in not only high cost but also easy obstruction to the buttonholing needle movement of the feeding device of the buttonholing machine.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A feeding device of a buttonhole machine and a buttonhole machine, comprising a buttonhole machine body and a feeding device body, the feeding device body comprising a feeding base plate movably mounted on one side of the bottom of the buttonhole machine body through a linear motor, a first tightening and fixing mechanism and a second tightening and fixing mechanism symmetrically distributed are respectively arranged at both ends of a side of the feeding base plate close to the buttonhole machine body, the first tightening and fixing mechanism and the second tightening and fixing mechanism both comprise a cylinder fixing seat fixedly mounted to the feeding base plate, a U-shaped lifting platform is movably mounted on the top surface of the cylinder fixing seat through a telescopic cylinder, a tightening fixture is fixedly mounted on the bottom side of the U-shaped lifting platform away from the telescopic cylinder, and the tightening fixture is composed of a fixing seat, a connecting seat and a tightening seat.

[0008] As a preferred solution of the utility model, the U-shaped lifting platform and the fixed seat are fixedly connected by fixing bolts, the tensioning seat is fixedly installed on the bottom of the fixed seat through a connecting seat, the fixed seat and the connecting seat are T-shaped, and the fixed seat, the connecting seat and the tensioning seat are integrally processed and formed.

[0009] As a preferred solution of the utility model, the top surface of the feeding bottom plate has first and second tightening cloth grooves corresponding to the first and second tightening cloth grooves, respectively, at both ends, and the first and second tightening cloth grooves are adapted to the tightening seat.

[0010] As a preferred solution of the utility model, the feeding bottom plate is integrally formed by a horizontal section and an inclined section, the inclined section is located on a side of the horizontal section away from the buttonhole machine body, and the horizontal section and the inclined section are arranged at an obtuse angle.

[0011] As a preferred solution of the utility model, a keyhole needle slot is provided through the horizontal section between the first tightening cloth slot and the second tightening cloth slot.

[0012] As a preferred solution of the utility model, a presser foot mechanism is movably installed at the bottom of the buttonhole machine body, and a needle mechanism is arranged through the inner center of the presser foot mechanism. The needle mechanism is located on the top surface of the feeding bottom plate between the first tightening and fixing mechanism and the second tightening and fixing mechanism.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by providing the first tightening and fixing mechanism and the second tightening and fixing mechanism, the feeding device of the overall buttonhole machine can realize automatic tightening and fixing in one step by relying on two sets of telescopic cylinders. Not only is the structure simpler and more effective, but it also avoids occupying a large amount of space on the top surface of the feeding bottom plate, thereby reducing the cost of the feeding device of the overall buttonhole machine and effectively preventing obstruction to the buttonhole needle movement, thereby effectively solving the problems raised in the above-mentioned background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 This is the three-dimensional structure schematic diagram of the main body of the feeding device in the present utility model;

[0017] Figure 3 This is the enlarged three-dimensional structure schematic diagram of the feeding bottom plate in the present utility model;

[0018] Figure 4 This is the enlarged three-dimensional structure schematic diagram of the tensioning and fixing mechanism in the present utility model.

[0019] In the figure: 1. Keyhole machine main body; 11. Presser foot mechanism; 12. Needle feeding mechanism; 2. Feeding device main body; 21. Linear motor; 22. Feeding bottom plate; 221. First tensioning cloth groove; 222. Second tensioning cloth groove; 223. Horizontal section; 2231. Keyhole needle feeding notch; 224. Inclined section; 23. First tensioning and fixing mechanism; 24. Second tensioning and fixing mechanism; 25. Cylinder fixing seat; 26. Telescopic cylinder; 27. U-shaped lifting platform; 271. Fixing bolt; 28. Tensioning and fixing device; 281. Fixing seat; 282. Connecting seat; 283. Tensioning seat. Specific embodiments

[0020] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment:

[0022] The embodiment of the present utility model provides a feeding device and a keyhole machine for a keyhole machine. The feeding device and the keyhole machine for the keyhole machine effectively solve the problems that in the existing feeding device and keyhole machine for a keyhole machine, the structures such as multiple groups of drivers and moving frames are complex, and at the same time, a large amount of space on the top surface of the bottom plate is occupied, resulting in not only high cost of the feeding device of the keyhole machine, but also easy obstruction to keyhole needle feeding.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0024] A feeding device for a keyhole sewing machine and a keyhole sewing machine, comprising a keyhole sewing machine main body 1 and a feeding device main body 2. A presser foot mechanism 11 is movably installed at the bottom of the keyhole sewing machine main body 1, and a needle feeding mechanism 12 is disposed through the center inside the presser foot mechanism 11. The presser foot mechanism 11 provided can perform targeted positioning on the keyhole area of the fabric, facilitating the needle feeding mechanism 12 to better achieve high-quality keyhole sewing on the fabric.

[0025] Among them, the main body 2 of the feeding device includes a feeding bottom plate 22 movably installed on one side of the bottom of the keyhole machine main body 1 through a linear motor 21. Symmetrically distributed first tensioning and fixing mechanisms 23 and second tensioning and fixing mechanisms 24 are respectively arranged at both ends of the feeding bottom plate 22 close to the keyhole machine main body 1. The needle feeding mechanism 12 is located between the first tensioning and fixing mechanism 23 and the second tensioning and fixing mechanism 24 on the top surface of the feeding bottom plate 22. First tensioning cloth grooves 221 and second tensioning cloth grooves 222 corresponding to the first tensioning and fixing mechanism 23 and the second tensioning and fixing mechanism 24 are respectively opened at both ends of the top surface of the feeding bottom plate 22. Both the first tensioning and fixing mechanism 23 and the second tensioning and fixing mechanism 24 include a cylinder fixed seat 25 fixedly installed on the feeding bottom plate 22. A U-shaped lifting platform 27 is movably installed on the top surface of the cylinder fixed seat 25 through a telescopic cylinder 26. A tensioning and fixing device 28 is fixedly installed on the side of the bottom of the U-shaped lifting platform 27 away from the telescopic cylinder 26. The tensioning and fixing device 28 is composed of a fixed seat 281, a connecting seat 282 and a tensioning seat 283. The U-shaped lifting platform 27 and the fixed seat 281 are fixedly connected by a fixing bolt 271. The tensioning seat 283 is fixedly installed at the bottom of the fixed seat 281 through the connecting seat 282. The fixed seat 281 and the connecting seat 282 are arranged in a T shape. The fixed seat 281, the connecting seat 282 and the tensioning seat 283 are integrally processed. The first tensioning cloth grooves 221, the second tensioning cloth grooves 222 and the tensioning seat 283 are all adapted. The cloth to be keyholed is laid flat on the top surface of the feeding bottom plate 22, and both ends of the cloth are respectively located at the first tensioning and fixing mechanism 23 and the second tensioning and fixing mechanism 24. Subsequently, the telescopic cylinder 26 works and expands downward. At this time, the U-shaped lifting platform 27 descends accordingly under its action. During the descending process, the tensioning and fixing device 28 in the first tensioning and fixing mechanism 23 and the second tensioning and fixing mechanism 24 tensions and fixes the cloth at both ends. The tensioning seat 283 enters the inside of the first tensioning cloth groove 221 and the second tensioning cloth groove 222, automatically stretches and tensions the cloth at both ends. Until the tensioning seat 283 completely enters the tensioning cloth groove, the fixed seat 281 can automatically press and fix the cloth, realizing automatic tensioning and fixing in one step, ensuring the accuracy of the keyhole position without deviation. And through the first tensioning and fixing mechanism 23 and the second tensioning and fixing mechanism 24 set, the overall feeding device can realize automatic tensioning and fixing in one step relying on two telescopic cylinders 26. It is not only more simple and effective in structure, but also avoids occupying a large amount of space on the top surface of the feeding bottom plate 22, reducing the cost of the feeding device of the overall keyhole machine, and effectively preventing obstacles to the keyhole needle feeding. After the tensioning and fixing is completed, under the action of the linear motor 21, the feeding bottom plate 22 moves to realize automatic feeding.

[0026] In addition, in this embodiment, please refer to Figure 3The feeding bottom plate 22 is integrally formed by a horizontal section 223 and an inclined section 224. The inclined section 224 is located on a side of the horizontal section 223 away from the buttonhole machine body 1. The horizontal section 223 and the inclined section 224 are arranged at an obtuse angle. The feeding bottom plate 22 is integrally formed by the horizontal section 223 and the inclined section 224. The horizontal section 223 can be used to buttonhole the fabric, and the inclined section 224 can be used to automatically unload the fabric after the buttonhole is completed.

[0027] In addition, in this embodiment, please refer to Figure 3 A keyhole needle slot 2231 is provided between the horizontal section 223 near the first tightening cloth slot 221 and the second tightening cloth slot 222, and the keyhole needle slot 2231 is provided to facilitate needle movement and avoid damage to the needle head.

[0028] It should be noted here that the linear motor and the telescopic cylinder are both existing technologies and will not be described in detail here.

[0029] In this embodiment, the implementation scenario is specifically as follows: when buttonholes are made on the fabric, the fabric to be buttonholed is laid flat on the top surface of the feeding bottom plate 22, and the two ends of the fabric are respectively located at the first tightening and fixing mechanism 23 and the second tightening and fixing mechanism 24, and then the telescopic cylinder 26 works and unfolds downward, at which time the U-shaped lifting platform 27 descends accordingly, and during the descent, the tightening and fixing devices 28 located in the first tightening and fixing mechanism 23 and the second tightening and fixing mechanism 24 tighten and fix the fabric at both ends, and the tightening seat 283 enters the first tightening fabric groove 221 and the second tightening fabric groove 222, and automatically stretches and tightens the fabric at both ends until the tightening seat 28 After fully entering the tensioning cloth groove, the fixing seat 281 can automatically press and fix the cloth, and realize automatic tightening and fixing in one step, ensuring that the buttonhole position is accurate and does not deviate. After completing the tightening and fixing, under the action of the linear motor 21, the feeding base plate 22 moves to realize automatic feeding. When reaching the buttonhole position, the presser foot mechanism 11 automatically descends to locate the buttonhole position. Then the presser foot mechanism 11 and the feeding base plate 22 move synchronously, and the needle movement mechanism 12 performs buttonholes on the buttonhole position. After completing the buttonhole at this position, the presser foot mechanism 11 automatically rises and continues the feeding cycle. The above process realizes multiple buttonhole processing of the cloth, reduces the cost of the feeding device of the overall buttonhole machine, and effectively prevents the buttonhole needle movement from being hindered.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a buttonholing machine and a buttonholing machine, comprising a buttonholing machine body (1) and a feeding device body (2), characterized in that: The feeding device body (2) comprises a feeding base plate (22) movably mounted on one side of the bottom of the buttonhole machine body (1) via a linear motor (21); a first tightening and fixing mechanism (23) and a second tightening and fixing mechanism (24) are respectively arranged at two ends of the feeding base plate (22) close to the buttonhole machine body (1) and are symmetrically distributed; the first tightening and fixing mechanism (23) and the second tightening and fixing mechanism (24) both comprise a cylinder fixing seat (25) fixedly mounted on the feeding base plate (22); a U-shaped lifting platform (27) is movably mounted on the top surface of the cylinder fixing seat (25) via a telescopic cylinder (26); a tightening fixture (28) is fixedly mounted on the bottom of the U-shaped lifting platform (27) away from the telescopic cylinder (26); the tightening fixture (28) is composed of a fixing seat (281), a connecting seat (282) and a tightening seat (283).

2. A feeding device for a buttonhole machine and a buttonhole machine according to claim 1, characterized in that: The U-shaped lifting platform (27) and the fixing seat (281) are fixedly connected by fixing bolts (271); the tensioning seat (283) is fixedly installed on the bottom of the fixing seat (281) by a connecting seat (282); the fixing seat (281) and the connecting seat (282) are arranged in a T shape; the fixing seat (281), the connecting seat (282) and the tensioning seat (283) are integrally formed.

3. A feeding device for a buttonhole machine and a buttonhole machine according to claim 1, characterized in that: A first tightening cloth groove (221) and a second tightening cloth groove (222) corresponding to the first tightening fixing mechanism (23) and the second tightening fixing mechanism (24) are respectively provided at both ends of the top surface of the feeding bottom plate (22), and the first tightening cloth groove (221) and the second tightening cloth groove (222) are both adapted to the tightening seat (283).

4. A feeding device for a buttonhole machine and a buttonhole machine according to claim 3, characterized in that: The feeding bottom plate (22) is integrally formed by a horizontal section (223) and an inclined section (224); the inclined section (224) is located on a side of the horizontal section (223) away from the buttonhole machine body (1); and the horizontal section (223) and the inclined section (224) are arranged at an obtuse angle.

5. A feeding device for a buttonhole machine and a buttonhole machine according to claim 4, characterized in that: A keyhole needle slot (2231) is provided between the horizontal section (223) and the first tightening cloth slot (221) and the second tightening cloth slot (222).

6. The feeding device of a buttonhole machine and the buttonhole machine according to claim 1, characterized in that: A presser foot mechanism (11) is movably mounted at the bottom of the buttonhole machine body (1), and a needle moving mechanism (12) is arranged through the inner center of the presser foot mechanism (11). The needle moving mechanism (12) is located on the top surface of the feeding bottom plate (22) between the first tightening and fixing mechanism (23) and the second tightening and fixing mechanism (24).

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