Adjustable backer mechanism of industrial sewing machine

Abstract

The utility model relates to the technical field of backers of sewing machine parts, and discloses an adjustable backer mechanism of an industrial sewing machine, which comprises a machine body and a machine head, and further comprises a mounting plate arranged at the top of the machine body, and a presser foot arranged at the bottom of the machine head. By arranging the first fixing frame, rotation of the rotating rod can be facilitated, by arranging the rotating rod, the limiting plate and the mounting base for cooperative use, the circular first backer body can be conveniently mounted, by arranging the second fixing frame, the mounting rod can be conveniently mounted, and by arranging the mounting rod and the mounting frame for cooperative use, the mounting rod can be conveniently mounted. The cuboid second backer body can be conveniently installed, and the first backer body and the second backer body can be conveniently exchanged and used by arranging the fixing bolts to be used in cooperation with the machine body.

Description

Technical Field

[0001] The utility model relates to the technical field of backing for sewing machine parts, in particular to an adjustable backing mechanism for an industrial sewing machine. Background Art

[0002] A sewing machine is a mechanical device used to sew clothing or other fabrics. It uses one or more sewing threads to create stitches on the material, interweaving or stitching one or more layers of fabric together. Its operating principle mainly involves four steps: thread transfer, needle eye formation, stitch formation, and fabric transfer. Sewing is achieved through electric or foot-operated operation.

[0003] The backrest mechanism can stably support key components in the sewing machine, such as the presser foot and needle plate, to ensure that they maintain the correct position and posture during the sewing process and prevent displacement or loosening. The existing adjustable backrest mechanism of the sewing machine has significant limitations in design, which is mainly reflected in the replacement and installation of the backrest. The backrests of many sewing machines can only be fixed in a specific position and cannot be flexibly replaced, resulting in the user being unable to adjust the shape and height of the backrest according to needs in different sewing tasks. This design limits the adaptability of the backrest, making it impossible for users to obtain optimal support and stability when dealing with different types of fabrics or sewing styles, thereby affecting sewing results and work efficiency. In addition, the fixed backrest may also cause wear and tear after long-term use and cannot be replaced in time, further reducing the practicality of the device. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable backing mechanism for an industrial sewing machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable backrest mechanism for an industrial sewing machine, comprising a body and a head, and further comprising:

[0006] A mounting plate is provided on the top of the fuselage, a pressure foot is provided at the bottom of the head, a fixing bolt for limiting the mounting plate is provided on the inner wall of the mounting plate, two sets of fixing brackets are provided on the top of each mounting plate, a rotating rod is rotated on the inner wall of one of the fixing brackets, multiple sets of limiting plates are fixed on the outer side of the rotating rod, two sets of first backrest bodies are clamped on the outer side of the limiting plate, and the first backrest body is set to be circular, and the inner wall of the rotating rod is threadedly connected to a mounting seat;

[0007] A mounting rod is installed on the inner wall of another fixing frame, the lower end of the mounting rod is fixed with a mounting frame, and the mounting frame is set to be L-shaped, and the bottom of the mounting frame is installed with a second backrest body, and the second backrest body is set to be a rectangular parallelepiped.

[0008] Preferably, a connecting frame is fixed on the top of the fixing frame, and a connecting block is rotatably provided on the inner wall of the connecting frame.

[0009] Preferably, a pull rod is fixed on one side of the connecting block, and a fixing frame is rotatably provided on the outer side of the connecting block.

[0010] Preferably, a connecting column is rotatably provided on the inner wall of the fixing frame, and a baffle is fixed to the lower end of the connecting column.

[0011] Preferably, a plurality of support frames for fixing the fixing frame are provided on the top of the mounting plate, and a plurality of connecting bolts are provided on the inner wall of the support frame.

[0012] Preferably, a fixed plate is fixed to the upper end of the rotating rod, a slide rail is fixed to the bottom of the fixed plate, and the outer side of the slide rail is slidably connected to the inner wall of the fixing frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model can facilitate the installation of two sets of fixing frames by providing the mounting plate, can facilitate the rotation of the rotating rod by providing the first fixing frame, can facilitate the installation of the circular first backrest body by providing the rotating rod, the limiting plate and the mounting seat by providing the coordinated use, can facilitate the installation of the second circular backrest body by providing the second fixing frame, can facilitate the installation of the mounting rod by providing the coordinated use of the mounting rod and the mounting frame, can facilitate the installation of the second rectangular backrest body by providing the coordinated use of the fixing bolt and the fuselage, can facilitate the exchange of the first backrest body and the second backrest body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of the adjustable backrest mechanism of an industrial sewing machine provided by the present invention;

[0016] Figure 2 A schematic diagram of the structure of the fuselage and mounting plate provided by the utility model;

[0017] Figure 3 A schematic diagram of the bottom structure of the fixing frame provided by the utility model;

[0018] Figure 4 A schematic structural diagram of the mounting frame and the second backrest body provided by the utility model;

[0019] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at point A shown.

[0020] In the figure: 1. Machine body; 2. Machine head; 3. Mounting plate; 4. Presser foot; 5. Fixing bolt; 6. Fixing frame; 7. Turn bar; 8. Limiting plate; 9. First backrest body; 10. Mounting seat; 11. Mounting rod; 12. Mounting frame; 13. Second backrest body; 14. Connecting frame; 15. Connecting block; 16. Pull rod; 17. Fixing frame; 18. Connecting column; 19. Baffle; 20. Support frame; 21. Connecting bolt; 22. Fixing plate; 23. Slide rail. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 5 As shown, an adjustable industrial sewing machine backrest mechanism includes a body 1 and a head 2. A mounting plate 3 is provided on the top of the body 1, a presser foot 4 is provided on the bottom of the head 2, and a fixing bolt 5 for limiting the mounting plate 3 is provided on the inner wall of the mounting plate 3. By providing the fixing bolt 5, the mounting plate 3 can be conveniently installed on the body 1 and conveniently disassembled. Two sets of fixing frames 6 are provided on the top of the mounting plate 3, and a rotating rod 7 is rotatably provided on the inner wall of one of the fixing frames 6. By providing the first fixing frame 6, the rotating rod 7 can be conveniently rotated. By providing the coordinated use of the rotating rod 7 and the limiting plate 8, the first backrest body 9 can be conveniently installed. The rotating rod 7 Multiple groups of limiting plates 8 are fixed to the outside of the limiting plates 8, and two groups of first backrest bodies 9 are clamped on the outside of the limiting plates 8, and the first backrest bodies 9 are set to be circular, and the inner wall of the rotating rod 7 is threadedly connected with a mounting seat 10. By setting the mounting seat 10, it is convenient to connect with the rotating rod 7; a mounting rod 11 is installed on the inner wall of another fixing frame 6, and a mounting frame 12 is fixed to the lower end of the mounting rod 11, and the mounting frame 12 is set to be L-shaped, and a second backrest body 13 is installed at the bottom of the mounting frame 12, and the second backrest body 13 is set to a rectangular parallelepiped. By setting the mounting rod 11 and the mounting frame 12 in coordination, the second backrest body 13 can be easily installed and disassembled.

[0023] A connecting frame 14 is fixed to the top of the fixed frame 6, and a connecting block 15 is rotatably provided on the inner wall of the connecting frame 14; a pull rod 16 is fixed to one side of the connecting block 15, and a fixed frame 17 is rotatably provided on the outer side of the connecting block 15; a connecting column 18 is rotatably provided on the inner wall of the fixed frame 17, and a baffle 19 is fixed to the lower end of the connecting column 18; by providing the connecting frame 14, it is convenient to connect with the connecting block 15, by providing the connecting block 15, it is convenient to connect with the pull rod 16, by providing the pull rod 16, it is convenient to drive the fixed frame 17 to move, by providing the fixed frame 17, it is convenient to connect with the connecting column 18, by providing the connecting column 18, it is convenient to connect with the baffle 19, and by providing the baffle 19, the cloth can be prevented from rolling up.

[0024] The top of the mounting plate 3 is provided with multiple groups of support frames 20 for fixing the fixing frames 6, and the inner wall of the support frames 20 is provided with multiple connecting bolts 21; by setting up the support frames 20 and the connecting bolts 21 for use in conjunction, the two groups of fixing frames 6 can be conveniently fixed.

[0025] A fixed plate 22 is fixed to the upper end of the rotating rod 7, a slide rail 23 is fixed to the bottom of the fixed plate 22, and the outer side of the slide rail 23 is slidably connected to the inner wall of the fixed frame 6; by setting the fixed plate 22 and the slide rail 23 for use in conjunction, the rotating rod 7 can be conveniently limited.

[0026] Working principle: First, install the rotating rod 7 in the fixing frame 6 through the fixing plate 22 and the sliding rail 23, then install the limit plate 8 on the outside of the rotating rod 7, clip the two sets of first backrest bodies 9 into the outside of the limit plate 8, and install the mounting seat 10 in the rotating rod 7 to install the first backrest body 9, then install the mounting rod 11 in the second fixing frame 6, and then install the mounting frame 12 on the mounting rod 11, and then install the second backrest body 13 in the mounting frame 12. When the first backrest body 9 and the second backrest body 13 need to be swapped, just twist the fixing bolt 5 to separate the mounting plate 3 from the fuselage 1, and tighten the fixing bolt 5 after swapping positions.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable industrial sewing machine backing mechanism, comprising a body (1) and a head (2), characterized in that: Also includes: A mounting plate (3) is provided on the top of the fuselage (1), a presser foot (4) is provided at the bottom of the machine head (2), a fixing bolt (5) for limiting the mounting plate (3) is provided on the inner wall of the mounting plate (3), two groups of fixing frames (6) are provided on the top of each of the mounting plates (3), a rotating rod (7) is rotated on the inner wall of one of the fixing frames (6), a plurality of limiting plates (8) are fixed on the outer side of the rotating rod (7), two groups of first backrest bodies (9) are clamped on the outer side of the limiting plate (8), and the first backrest body (9) is set to be circular, and a mounting seat (10) is threadedly connected to the inner wall of the rotating rod (7); A mounting rod (11) is mounted on the inner wall of another fixing frame (6), a mounting frame (12) is fixed to the lower end of the mounting rod (11), and the mounting frame (12) is configured to be L-shaped, and a second backrest body (13) is mounted on the bottom of the mounting frame (12), and the second backrest body (13) is configured to be a rectangular parallelepiped.

2. The adjustable backrest mechanism for an industrial sewing machine according to claim 1, characterized in that: A connecting frame (14) is fixed on the top of the fixing frame (6), and a connecting block (15) is rotatably provided on the inner wall of the connecting frame (14).

3. The adjustable backrest mechanism for an industrial sewing machine according to claim 2, characterized in that: A pull rod (16) is fixed on one side of the connecting block (15), and a fixing frame (17) is rotatably provided on the outer side of the connecting block (15).

4. The adjustable backrest mechanism for an industrial sewing machine according to claim 3, characterized in that: A connecting column (18) is rotatably provided on the inner wall of the fixed frame (17), and a baffle (19) is fixed to the lower end of the connecting column (18).

5. The adjustable backrest mechanism for an industrial sewing machine according to claim 1, characterized in that: A plurality of support frames (20) for fixing the fixing frame (6) are provided on the top of the mounting plate (3), and a plurality of connecting bolts (21) are provided on the inner wall of the support frame (20).

6. The adjustable backrest mechanism for an industrial sewing machine according to claim 1, characterized in that: A fixed plate (22) is fixed to the upper end of the rotating rod (7), a slide rail (23) is fixed to the bottom of the fixed plate (22), and the outer side of the slide rail (23) is slidably connected to the inner wall of the fixed frame (6).

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