Auxiliary material pressing mechanism for sewing machine

Abstract

The utility model relates to the technical field of sewing machines, in particular to an auxiliary pressing mechanism for a sewing machine, which comprises a first connecting rod and a second connecting rod, a mounting component is fixedly mounted on the lower surface of the second connecting rod and comprises a base, a mounting groove is formed in the upper surface of the base, and a presser foot is fixedly mounted on the side surface of the base. A pressing plate is fixedly installed on the side surface of the pressing foot, a coil is fixedly installed on the upper surface of the pressing plate, a second screw rod is installed on the side surface of the pressing plate in a threaded mode, and the pressing foot is fixedly connected with the pressing plate through the second screw rod. Then the cloth is wound on the winding ring, and the cloth is pressed on the back face of the pressing plate through the pressing plate, so that the sewing part is kept stable, the cloth can be effectively pressed, the device can adapt to cloth of different specifications, displacement caused by insufficient pressing force is prevented, and losses are avoided.

Description

Technical Field

[0001] This utility model relates to the field of sewing machines, specifically to an auxiliary pressing mechanism for sewing machines. Background Technology

[0002] Sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products such as leather, plastic, and paper. The stitches produced are neat, beautiful, flat, and strong. They are fast, easy to use, and have given rise to art forms such as hand-pushed embroidery and computer embroidery. The pressing mechanism refers to the mechanism that applies pressure to the surface of the sewing material.

[0003] The auxiliary pressing mechanism of existing sewing machines presses down the part to be sewn during the sewing process to keep it stable. The sewing of sewing machines is carried out by clamping the fabric with a template. The needle plate and the table plate are on the same plane. There is a certain gap between the fabric held by the template and the needle plate. During sewing, the presser foot will press the fabric down between the upper and lower templates under pressure, so that the fabric comes into contact with the needle plate.

[0004] However, different types of materials will be pressed during the work process, and some of the materials have uneven surfaces, which makes them inconvenient to operate. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary pressing mechanism for sewing machines to solve the problem mentioned in the background art that different types of materials are pressed during operation, and some materials have uneven surfaces, which makes operation inconvenient.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary pressing mechanism for a sewing machine, comprising: a sewing machine body, a first connecting rod and a second connecting rod fixedly installed on the lower surface of the sewing machine body, an installation component fixedly installed on the lower surface of the second connecting rod, the installation component comprising: a base, an installation groove formed on the upper surface of the base, and a presser foot fixedly installed on the side surface of the base;

[0007] A pressure plate is fixedly installed on the side surface of the pressure foot, a winding coil is fixedly installed on the upper surface of the pressure plate, and a second screw is threaded onto the side surface of the pressure plate. The pressure foot is fixedly connected to the pressure plate through the second screw.

[0008] Preferably, a first threaded hole is provided on the bottom side surface of the first connecting rod, and a screw is threadedly connected to the inner surface of the first threaded hole. The base is threadedly connected to the first connecting rod by the screw.

[0009] Preferably, a fixing seat is fitted on the outer surface of the second connecting rod, a first screw is threadedly connected to the inner surface of the fixing seat, and a sewing needle is fixedly installed on the lower surface of the fixing seat.

[0010] Preferably, the side surface of the presser foot is provided with a second threaded hole, and the second screw is threadedly connected to the second threaded hole.

[0011] Preferably, the inner side of the pressure plate is provided with a groove, and an extension component is engaged with the inner surface of the groove. The extension component includes an extension plate, and a protrusion is fixedly installed on the side surface of the extension plate. The protrusion is inserted into the groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model proposes an auxiliary pressing mechanism for a sewing machine;

[0014] By installing the mounting slot on the base at the lower end of the first connecting rod, and then fixing the pressure plate to the side of the presser foot, the fabric is wound around the loop. The fabric is then pressed against the back of the pressure plate by the pressure plate, thus pressing down the part to be sewn when sewing, keeping the sewn part stable. This effectively presses down the fabric, can adapt to different specifications of fabric, prevents displacement caused by insufficient pressing force, and avoids loss. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the explosive decomposition of this utility model;

[0018] Figure 4 This is a schematic diagram of the extension plate installation structure of this utility model.

[0019] In the diagram: 1. Sewing machine body; 2. First connecting rod; 3. Fixing base; 4. First screw; 5. Sewing needle; 6. Base; 7. Mounting groove; 8. First threaded hole; 9. Presser foot; 10. Pressure plate; 11. Second threaded hole; 12. Second screw; 13. Groove; 14. Winding loop; 15. Extension plate; 16. Protrusion; 17. Screw; 18. Second connecting rod. 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] Please see Figures 1 to 4This utility model provides a technical solution: an auxiliary pressing mechanism for a sewing machine;

[0022] Example 1:

[0023] To ensure stability of the sewn section and prevent displacement due to insufficient clamping force, a first connecting rod 2 and a second connecting rod 18 are fixedly installed on the lower surface of the sewing machine body 1. A mounting assembly is fixedly installed on the lower surface of the second connecting rod 18, including: a base 6; a mounting groove 7 on the upper surface of the base 6; a presser foot 9 fixedly installed on the side surface of the base 6; a pressure plate 10 fixedly installed on the side surface of the presser foot 9; a winding loop 14 fixedly installed on the upper surface of the pressure plate 10; a second screw 12 threaded onto the side surface of the pressure plate 10; and the presser foot 9 fixedly connected to the pressure plate 10 via the second screw 12. A first threaded hole 8 is formed on the bottom side surface of the first connecting rod 2, and a screw 17 is threaded onto the inner surface of the first threaded hole 8. The base 6 is threaded to the first connecting rod 2 via the screw 17. The presser foot 9 has a second threaded hole 11 on its side surface, and the second screw 12 is threadedly connected to the second threaded hole 11. The inner side of the pressure plate 10 has a groove 13, and the inner surface of the groove 13 is fitted with an extension component. The extension component includes an extension plate 15, and a protrusion 16 is fixedly installed on the side surface of the extension plate 15. The protrusion 16 is inserted into the groove 13. The mounting groove 7 on the base 6 is installed at the lower end of the first connecting rod 2, and then the pressure plate 10 is fixed to the side of the presser foot 9. Then the fabric is wound around the loop 14, and the fabric is pressed against the back of the pressure plate 10 by the pressure plate 10. This achieves the purpose of pressing down the part to be sewn when sewing, keeping the sewn part stable, effectively pressing the fabric, adapting to different specifications of fabric, preventing displacement due to insufficient pressing force, and avoiding loss.

[0024] Working principle: In order to keep the sewn part stable and prevent displacement caused by insufficient pressure when using this device, the mounting groove 7 on the base 6 is installed at the lower end of the first connecting rod 2, and then the pressure plate 10 is fixed to the side of the presser foot 9. Then the fabric is wound around the loop 14, and the fabric is pressed against the back of the pressure plate 10. This presses down the part to be sewn when sewing, keeping the sewn part stable. It can effectively press the fabric, adapt to different specifications of fabric, prevent displacement caused by insufficient pressure, and avoid loss.

[0025] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary presser mechanism for a sewing machine, characterized by: Include: Sewing machine body (1), the lower surface of the sewing machine body (1) is fixedly installed with a first connecting rod (2) and a second connecting rod (18), the lower surface of the second connecting rod (18) is fixedly installed with a mounting assembly, the mounting assembly comprises: a base (6), the upper surface of the base (6) is provided with a mounting groove (7), the side surface of the base (6) is fixedly installed with a presser foot (9); The side surface of the presser foot (9) is fixedly installed with a pressing plate (10), the upper surface of the pressing plate (10) is fixedly installed with a winding coil (14), the side surface of the pressing plate (10) is threadedly installed with a second screw rod (12), and the presser foot (9) is fixedly connected with the pressing plate (10) through the second screw rod (12).

2. An auxiliary presser foot mechanism for a sewing machine according to claim 1, characterized in that: The bottom end side surface of the first connecting rod (2) is provided with a first threaded hole (8), the inner surface of the first threaded hole (8) is threadedly connected with a screw (17), and the base (6) is threadedly connected with the first connecting rod (2) through the screw (17).

3. An auxiliary presser foot mechanism for a sewing machine as defined in claim 1, wherein: The outer surface of the second connecting rod (18) is sleeved with a fixed seat (3), the inner surface of the fixed seat (3) is threadedly connected with a first screw rod (4), and the lower surface of the fixed seat (3) is fixedly installed with a sewing needle (5).

4. An auxiliary presser foot mechanism for a sewing machine according to claim 1, characterized in that: The side surface of the presser foot (9) is provided with a second threaded hole (11), and the second screw rod (12) is threadedly connected with the second threaded hole (11).

5. An auxiliary presser foot mechanism for a sewing machine as defined in claim 1, wherein: The inner side of the pressing plate (10) is provided with a groove (13), and the extension assembly is clamped on the inner surface of the groove (13), the extension assembly comprises: an extension plate (15), the side surface of the extension plate (15) is fixedly installed with a protruding block (16), and the protruding block (16) is inserted into the groove (13).

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