Tabouret supporting arm

Abstract

The utility model relates to a tabouret supporting arm in the field of embroidery machines, which comprises an arm body, two ends of the arm body are respectively a machine body connecting part and a tabouret connecting part, the front and back surfaces of the tabouret connecting part are respectively provided with a magnetic attraction block, a positioning column and a positioning nail, and the magnetic attraction block is used for attracting a positioning block at the edge of a cloth pressing frame. Two positioning notches are formed in the edge of the positioning block, the diameters of the positioning column and the positioning nail correspond to the diameters of the positioning notches, the positioning column and the positioning nail are matched and clamped with the two positioning notches respectively, a limiting cap is arranged at the end, away from the tabouret connecting part, of the positioning nail, and the diameter of the limiting cap is larger than that of the positioning nail; the positioning column, the positioning nail and the arm body are integrally formed through injection molding, compared with a traditional metal supporting arm, the self weight of the supporting arm is greatly reduced, the limiting cap of the positioning nail and the magnetic attraction block form a dual anti-falling mechanism, the tabouret positioning block can be pulled away by applying vertical pulling force to the end, close to the positioning column, of the tabouret positioning block in the dismounting process, and tools are not needed in the whole dismounting process.

Description

Technical Field

[0001] This utility model relates to the field of embroidery machines, and in particular to embroidery frame support arms. Background Technology

[0002] Embroidery machines, as core equipment in the textile industry, create complex patterns on fabric surfaces through the precise interplay of needles and thread. During the embroidery process, a fabric presser is used to firmly press the fabric onto the frame to prevent slippage or wrinkling, ensuring stitch accuracy and pattern consistency. The stability of the presser directly affects the yield rate of the embroidery, while the efficiency of disassembling and assembling the presser when changing fabric determines the overall utilization rate of the equipment. Therefore, the support arm, as a key component connecting the embroidery machine body and the presser, is crucial for both production efficiency and embroidery quality through its structural design and performance optimization.

[0003] Traditional embroidery machine support arms are typically made of metal, with machine body connecting parts and embroidery frame connecting parts at both ends. Two positioning posts are vertically mounted on the surface of the embroidery frame connecting part. After the positioning block of the fabric pressing frame is initially aligned with the positioning posts through the positioning holes, an additional metal pressure plate is needed to cover the positioning block, and the pressure plate is locked and fixed to the support arm with bolts. This structure relies on the pressure generated by the bolts to maintain the stability of the fabric pressing frame.

[0004] The existing embroidery frame support arm requires manually tightening / loosening multiple bolts each time the pressure frame is replaced. The operation steps are redundant, and a single disassembly and assembly takes 1-2 minutes. The metal arm body is heavy, and the equipment generates inertia and high load torque during operation, which increases energy consumption and accelerates mechanical wear. Utility Model Content

[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides an embroidery frame support arm, which can effectively solve the technical problem of inconvenient assembly and disassembly of the support arm and the embroidery frame.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] The embroidery frame support arm includes an arm body, with a machine body connection part and an embroidery frame connection part at both ends. Magnetic blocks, positioning posts, and positioning pins are provided on both sides of the embroidery frame connection part. The magnetic blocks are used to attract the positioning blocks at the edge of the fabric frame. Two positioning notches are provided on the edge of the positioning blocks. The diameters of the positioning posts and positioning pins correspond to the diameters of the positioning notches. The positioning posts and positioning pins are paired and engaged with the two positioning notches respectively. A limit cap is provided at the end of the positioning pin away from the embroidery frame connection part, and the diameter of the limit cap is larger than the diameter of the positioning pin. The arm body is made of rubber, and the positioning posts, positioning pins, and arm body are integrally molded by injection molding.

[0008] Furthermore, the surface of the embroidery frame connecting part is provided with a positioning groove, and a threaded connection hole is provided in the positioning groove. The magnetic block is installed in the positioning groove by bolts, and the surface of the magnetic block is flush with the surface of the embroidery frame connecting part.

[0009] Furthermore, the bolt is a countersunk bolt, and after the bolt is tightened, the surface of the nut is flush with the surface of the magnetic block.

[0010] Furthermore, both the embroidery frame connecting part and the body connecting part are composed of a web and a flange. The flange of the embroidery frame connecting part is located on one side of the web, and the cross-section of the embroidery frame connecting part is a transverse "T" shape. The flange of the body connecting part is located on both sides of the web, and the cross-section of the body connecting part is an "H" shape.

[0011] Furthermore, a fixed connecting block is integrally formed at the end of the body connecting part away from the embroidery frame connecting part, and the surface of the fixed connecting block is provided with a connecting hole for installation with the body.

[0012] Furthermore, the end of the embroidery frame connecting part away from the machine body connecting part is integrally formed with a release handle, and a step is formed between the release handle and the embroidery frame connecting part, so that the surface of the release handle is lower than the surface of the embroidery frame connecting part.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The arm body is integrally injection molded from rubber material, which significantly reduces the weight of the support arm compared with the traditional metal support arm, reduces the inertia of the support arm during equipment operation, reduces the load torque of the machine body, reduces energy consumption, and extends the service life of the equipment. The magnetic block, positioning post and positioning nail work together to pre-position the fabric frame through the positioning post and positioning nail during installation. Then, the magnetic force automatically attracts it, and the positioning notch and positioning post and positioning nail mechanically engage to complete the final connection. The limiting cap of the positioning nail and the magnetic block form a double anti-detachment mechanism. When disassembling, only a vertical pulling force needs to be applied to the end of the embroidery frame positioning block near the positioning post to pull it away. No tools are required throughout the process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 This is an exploded view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the embroidery frame connecting part in this utility model;

[0017] Figure 4 This is a cross-sectional schematic diagram of the body connection part in this utility model;

[0018] Figure 5 This is a cross-sectional schematic diagram of the embroidery frame connection part in this utility model;

[0019] The numbers in the diagram are: 1-arm body, 2-body connection part, 3-embroidery frame connection part, 4-magnetic block, 5-positioning post, 6-positioning nail, 7-limiting cap, 8-positioning groove, 9-threaded hole, 10-bolt, 11-web plate, 12-wing flange, 13-fixed connection block, 14-release handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] The following is combined with Figures 1-5 The embroidery frame support arm of this utility model is described in detail below:

[0022] The embroidery frame support arm includes an arm body 1, with a machine body connecting part 2 and an embroidery frame connecting part 3 at its two ends. Both sides of the embroidery frame connecting part 3 are equipped with magnetic blocks 4, positioning posts 5, and positioning pins 6. The magnetic blocks 4 are used to attract the positioning blocks on the edge of the fabric frame. Each positioning block has two positioning notches on its edge. The diameters of the positioning posts 5 and positioning pins 6 correspond to the diameters of the positioning notches. The positioning posts 5 and positioning pins 6 are respectively paired and engaged with the two positioning notches. A limit cap 7 is provided at the end of the positioning pin 6 furthest from the embroidery frame connecting part 3. The diameter of the limit cap 7 is larger than the diameter of the positioning pin 6. The arm body 1 is made of rubber, and the positioning posts 5, positioning pins 6, and arm body 1 are integrally molded by injection molding. After the positioning notches engage with the positioning pins 6, the limit cap 7 and magnetic blocks 4 prevent the embroidery frame positioning blocks from detaching.

[0023] The arm body 1 is integrally injection molded from rubber material. Compared with traditional metal support arms, it significantly reduces the weight of the support arm itself, reduces the rotational inertia during equipment operation, reduces the load torque on the machine body, reduces energy consumption, and extends the service life of the equipment. The magnetic block 4, positioning post 5, and positioning nail 6 work together to pre-position the fabric pressing frame through the positioning post 5 and positioning nail 6 during installation. Then, the magnetic force automatically attracts it, and the positioning notch and positioning post 5 and positioning nail 6 mechanically engage to complete the final connection. The limit cap 7 of the positioning nail 6 and the magnetic block 4 form a double anti-detachment mechanism. When disassembling, only a vertical pulling force needs to be applied to the end of the fabric pressing frame positioning block near the positioning post 5 to pull it away. No tools are required throughout the process.

[0024] The surface of the embroidery frame connecting part 3 is provided with a positioning groove 8, and a threaded hole 9 is provided in the positioning groove 8. The magnetic block 4 is installed in the positioning groove 8 by bolts 10. The surface of the magnetic block 4 is flush with the surface of the embroidery frame connecting part 3. The magnetic block 4 is fixed in the positioning groove 8 by countersunk bolts 10, so that the magnetic block 4 can be disassembled and replaced to adapt to different magnetic attraction strength requirements. The bolts 10 are countersunk bolts 10, and after the bolts 10 are tightened, the surface of the nut is flush with the surface of the magnetic block 4.

[0025] Both the embroidery frame connecting part 3 and the body connecting part 2 are composed of a web plate 11 and a flange 12. The flange 12 of the embroidery frame connecting part 3 is located on one side of the web plate 11, and the cross-section of the embroidery frame connecting part 3 is a transverse "T" shape. The flange 12 of the body connecting part 2 is located on both sides of the web plate 11, and the cross-section of the body connecting part 2 is "H" shape. The "T" shaped cross-section of the embroidery frame connecting part 3 and the "H" shaped cross-section of the body connecting part 2 form a gradient stiffness distribution, which improves the bending strength and torsional strength under the same weight. The integral injection molding of the flange 12 and the web plate 11 optimizes the material distribution, and the rubber arm 1 has the load-bearing capacity of a metal-like structure while maintaining elasticity.

[0026] The end of the body connecting part 2 away from the embroidery frame connecting part 3 is integrally formed with a fixing connecting block 13. The surface of the fixing connecting block 13 is provided with a connecting hole for installation with the body. The connecting hole is a standardized threaded hole, which can be directly connected to the bolt of the body during installation without the need for additional adapters.

[0027] The end of the embroidery frame connecting part 3 away from the machine body connecting part 2 is integrally formed with a release handle 14. A step is formed between the release handle 14 and the embroidery frame connecting part 3, so that the surface of the release handle 14 is lower than the surface of the embroidery frame connecting part 3. The step-like lowering creates a force application gap between the release handle 14 and the pressure frame, which conforms to the human thumb pressing curve. When disassembling, the thumb can press the release handle 14 as the force point, making disassembly more convenient.

[0028] The rubber arm body 1 is integrally injection molded with the positioning column 5 and positioning nail 6, eliminating the structural weaknesses of traditional welding or threaded connections, improving fatigue strength. The elastic properties of the rubber material can absorb the high-frequency vibration energy of the embroidery machine, reducing equipment operating noise. The embroidery frame connecting part 3 is symmetrically set with magnetic blocks 4, positioning columns 5 and positioning nails 6 on both sides, so there is no need to distinguish the direction during operation. Any side can be accurately connected with the pressing frame, reducing the error rate. It is especially suitable for multi-variety and quick-change production scenarios.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A frame support arm comprising an arm body, two ends of the arm body being a machine body connecting portion and a frame connecting portion respectively, characterized in that: The front and back surfaces of the embroidery frame connecting part are provided with magnetic attraction blocks, positioning columns and positioning nails, the magnetic attraction blocks are used for attracting positioning blocks at the edges of the cloth pressing frame, the edges of the positioning blocks are provided with two positioning notches, the diameters of the positioning columns and the positioning nails correspond to the diameters of the positioning notches, the positioning columns and the positioning nails are respectively matched and engaged with the two positioning notches, the end of the positioning nail away from the embroidery frame connecting part is provided with a limiting cap, the diameter of the limiting cap is larger than that of the positioning nail, the arm body is made of rubber, and the positioning column, the positioning nail and the arm body are integrally formed through injection molding.

2. The hoop support arm of claim 1, wherein: The surface of the embroidery frame connecting part is provided with a positioning groove, a threaded hole is arranged in the positioning groove, the magnetic attraction block is installed in the positioning groove through bolts, and the surface of the magnetic attraction block is flush with the surface of the embroidery frame connecting part.

3. The hoop support arm of claim 2, wherein: The bolt is a countersunk bolt, and the surface of the nut is flush with the surface of the magnetic attraction block after the bolt is tightened.

4. The hoop support arm of any one of claims 1-3, wherein: The embroidery frame connecting part and the machine body connecting part are both composed of a web plate and flanges, the flange of the embroidery frame connecting part is arranged on one side of the web plate, the cross section of the embroidery frame connecting part is in a horizontal "T" shape, the flanges of the machine body connecting part are arranged on both sides of the web plate, and the cross section of the machine body connecting part is in an "H" shape.

5. The hoop support arm of any one of claims 1-3, wherein: The end of the machine body connecting part away from the embroidery frame connecting part is integrally formed with a fixed connecting block, and the surface of the fixed connecting block is provided with a connecting hole for mounting the machine body.

6. The hoop support arm of any one of claims 1-3, wherein: The end of the embroidery frame connecting part away from the machine body connecting part is integrally formed with a tripping handle, and a step is formed between the tripping handle and the embroidery frame connecting part, so that the surface of the tripping handle is sunken compared with the surface of the embroidery frame connecting part.

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