Tension-adjustable sewing machine presser foot

Abstract

The utility model relates to the technical field, in particular to a tension-adjustable sewing machine presser foot which comprises a presser foot body and a rod body, the rod body is in butt joint with the presser foot body in a matched mode, a tension adjusting assembly is arranged on the outer side of the rod body, a butt joint base is arranged in the middle of the upper surface of the presser foot body, and a connecting end in butt joint with the butt joint base in a matched mode is arranged at the lower end of the rod body. The outer side of the lower end of the rod body is fixedly connected with a fixing plate, the tension adjusting assembly comprises a main adjusting assembly and a side adjusting assembly, the lower end of the main adjusting assembly abuts against the fixing plate, and the lower end of the side adjusting assembly abuts against the upper surface of the presser foot. The mode that the butt-joint base is connected with the connecting end in a matched mode is adopted between the presser foot and the rod body, compared with a traditional presser foot connecting mode, mounting and dismounting are quicker, production efficiency is effectively improved, production cost is reduced, the main adjusting assembly and the side adjusting assembly are adopted, evenly-distributed pressure can be provided for the presser foot, and the service life of the presser foot is prolonged. The damage to the cloth can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to an adjustable tension sewing machine presser foot. Background Technology

[0002] With the continuous development of sewing technology, sewing machines are increasingly widely used in industries such as clothing, home textiles, and footwear. However, traditional sewing machine presser feet often have certain limitations when sewing fabrics of different materials and thicknesses. Due to the fixed tension of the presser foot, problems such as loose or overly tight threads can easily occur when sewing on some special fabrics, affecting the sewing effect and product quality.

[0003] Some adjustable tension sewing machine presser feet have appeared on the market. Although they have alleviated the above problems to some extent, they still have drawbacks such as inconvenience in operation and insufficient stability. For example, replacing and disassembling the presser foot is cumbersome, and adjusting the tension is complicated. Sewing workers need to frequently adjust the equipment, which reduces production efficiency and increases production costs.

[0004] Therefore, an adjustable tension sewing machine presser foot is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable tension sewing machine presser foot to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adjustable tension sewing machine presser foot includes a presser foot and a rod body. The rod body mates with the presser foot. A tension adjustment component is provided on the outer side of the rod body. A docking base is provided in the middle of the upper surface of the presser foot. A connecting end that mates with the docking base is provided at the lower end of the rod body. A fixing plate is fixedly connected to the outer side of the lower end of the rod body. The tension adjustment component includes a main adjustment component and a side adjustment component. The lower end of the main adjustment component abuts against the fixing plate, and the lower end of the side adjustment component abuts against the upper surface of the presser foot.

[0008] As a preferred embodiment of this utility model, the main body of the docking base is a connecting seat. One side of the connecting seat is provided with a plug groove for the connecting end to be inserted. The upper end of the plug groove is provided with a slot for the rod to be inserted. A vertical slot is provided on one side of the upper surface of the connecting seat, and a baffle is provided inside the vertical slot.

[0009] As a preferred embodiment of this utility model, the inside of the insertion slot is provided with a magnetic material, so that the connection end is magnetically positioned in the insertion slot.

[0010] As a preferred embodiment of this utility model, the main body of the connecting end is a docking block.

[0011] As a preferred embodiment of this utility model, the size of the mating block is adapted to the internal size of the insertion slot.

[0012] As a preferred embodiment of this utility model, the main adjustment assembly includes a cylinder a that is threadedly connected to the rod body, and a rotating ring is rotatably connected to the upper end of the cylinder a, and a spring a is connected between the rotating ring and the fixed plate.

[0013] As a preferred embodiment of this utility model, the side adjustment component includes a connecting ring fixedly connected to the outside of the cylinder a, and connecting strips fixedly connected to both sides of the connecting ring, with elastic abutment members connected to the lower ends of the connecting strips on both sides.

[0014] As a preferred embodiment of this utility model, the elastic abutment includes a cylindrical body b fixedly connected to the connecting strip, an abutment rod inserted into the inside of the cylindrical body b, a spring b connected between the top end of the abutment rod and the cylindrical body b, and an abutment block fixedly connected to the lower end of the abutment rod.

[0015] As a preferred embodiment of this utility model, the upper surface of the presser foot is provided with a plurality of abutment blocks that mate with the abutment groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model uses a mating base and connecting end to connect the presser foot and the rod body. Compared with the traditional presser foot connection method, the installation and disassembly are faster, which effectively improves production efficiency and reduces production costs. It adopts a main adjustment component and a side adjustment component, which can provide even pressure to the presser foot and avoid damage to the fabric. Attached Figure Description

[0018] Figure 1 This is a first-view perspective perspective view of the present invention;

[0019] Figure 2 This is a second-view perspective perspective view of the present invention;

[0020] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0021] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Presser foot; 2. Connecting seat; 3. Fixing plate; 4. Cylinder body b; 5. Connecting strip; 6. Cylinder body a; 7. Connecting ring; 8. Abutting rod; 9. Abutting groove; 10. Abutting block; 11. Knob; 12. Rod body; 13. Rotating ring; 14. Spring b; 15. Spring a; 16. Connecting block; 17. Insertion groove; 18. Slot; 19. Baffle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figure 1-4 This utility model provides a technical solution:

[0028] For an example, please refer to... Figure 1 , 2 3 and 4, an adjustable tension sewing machine presser foot, including presser foot 1 and rod 12, rod 12 is mated with presser foot 1, tension adjustment component is provided on the outer side of rod 12, docking base is provided in the middle of the upper surface of presser foot 1, connecting end is provided at the lower end of rod 12 to mate with docking base, fixing plate 3 is fixedly connected to the outer side of the lower end of rod 12; tension adjustment component includes main adjustment component and side adjustment component, the lower end of main adjustment component abuts against fixing plate 3, and the lower end of side adjustment component abuts against upper surface of presser foot 1.

[0029] By using a docking base and the connecting end of the lower end of the rod 12 to connect together, the rod 12 and the tension adjustment component can be easily installed and disassembled, which effectively improves the installation and disassembly efficiency of the pressure foot 1 and increases production efficiency.

[0030] The tension adjustment assembly includes a main adjustment assembly and a side adjustment assembly, which can achieve uniform pressure on the presser foot 1 and avoid excessive local pressure on the presser foot 1, which could lead to fabric damage during use.

[0031] Please refer to Figure 1 , 2 3. The main body of the docking base is the connecting seat 2. One side of the connecting seat 2 is provided with a plug groove 17 for the connecting end to be inserted. The upper end of the plug groove 17 is provided with a slot 18 for the rod body 12 to be inserted. A vertical slot is provided on one side of the upper end face of the connecting seat 2. A baffle 19 is provided inside the vertical slot. A magnetic material is provided inside the plug groove 17 so that the connecting end is magnetically positioned in the plug groove 17. The main body of the connecting end is the docking block 16. The size of the docking block 16 is adapted to the internal size of the plug groove 17.

[0032] The rod 12 is inserted into the insertion slot 17 from the side through the docking block 16 at its lower end. The rod is made of magnetic material, which can achieve magnetic positioning of the docking block 16. After the insertion is completed, the docking block 16 is limited and fixed by the insertion of the baffle 19 to keep the rod 12 installed stably.

[0033] The main adjustment assembly includes a cylinder a6 threadedly connected to the rod 12. A rotating ring 13 is rotatably connected to the upper end of the cylinder a6, and a spring a15 is connected between the rotating ring 13 and the fixed plate 3. The side adjustment assembly includes a connecting ring 7 fixedly connected to the outer side of the cylinder a6. Connecting strips 5 are fixedly connected to both sides of the connecting ring 7, and elastic abutment members are connected to the lower ends of both connecting strips 5.

[0034] The cylinder a6 is driven to rotate by the knob 11 at its upper end. During rotation, the rotating ring 13 rotates relative to the cylinder a6. At the same time, the cylinder a6 descends, putting pressure on the spring a15 inside, causing the spring a15 to deform. The lower end of the spring a15 exerts downward pressure on the fixed plate 3, which in turn puts pressure on the lower end of the rod 12.

[0035] Simultaneously, as the cylinder a6 descends, it drives the side adjustment component to descend as well. The side adjustment component comes into contact with the pressure foot 1, applying pressure to both sides of the pressure foot 1.

[0036] The elastic abutment includes a cylindrical body b4 fixedly connected to the connecting strip 5. An abutment rod 8 is inserted and connected inside the cylindrical body b4. A spring b14 is connected between the top end of the abutment rod 8 and the cylindrical body b4. An abutment block 10 is fixedly connected to the lower end of the abutment rod 8. Several abutment blocks 10 are provided on the upper surface of the pressure foot 1 to cooperate with the abutment groove 9.

[0037] During the contact process, the contact block 10 and the contact rod 8 cooperate with the contact groove 9 to contact. During the contact process, the spring b14 is compressed and downward pressure is applied to provide pressure to both sides of the pressure foot 1, ensuring that the pressure distribution of the pressure foot 1 is uniform.

[0038] 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 adjustable tension sewing machine presser foot, comprising a presser foot (1) and a rod (12), wherein the rod (12) is mated with the presser foot (1), and a tension adjustment component is provided on the outer side of the rod (12), characterized in that: The upper surface of the presser foot (1) is provided with a docking base in the middle, the lower end of the rod (12) is provided with a connecting end that mates with the docking base, and a fixing plate (3) is fixedly connected to the outer side of the lower end of the rod (12). The tension adjustment assembly includes a main adjustment assembly and a side adjustment assembly. The lower end of the main adjustment assembly abuts against the fixed plate (3), and the lower end of the side adjustment assembly abuts against the upper surface of the pressure foot (1).

2. The adjustable tension sewing machine presser foot according to claim 1, characterized in that: The main body of the docking base is a connecting seat (2). A plug groove (17) for inserting the connecting end is provided on one side of the connecting seat (2). A slot (18) for inserting the rod body (12) is provided at the upper end of the plug groove (17). A vertical slot is provided on one side of the upper surface of the connecting seat (2). A baffle (19) is provided inside the vertical slot.

3. The adjustable tension sewing machine presser foot according to claim 2, characterized in that: The insertion slot (17) is provided with a magnetic material inside, so that the connection end is magnetically positioned in the insertion slot (17).

4. The adjustable tension sewing machine presser foot according to claim 3, characterized in that: The main body of the connection end is a docking block (16).

5. The adjustable tension sewing machine presser foot according to claim 4, characterized in that: The dimensions of the mating block (16) are adapted to the internal dimensions of the insertion slot (17).

6. The adjustable tension sewing machine presser foot according to any one of claims 1-5, characterized in that: The main adjustment assembly includes a cylinder a (6) threadedly connected to the rod (12), and a rotating ring (13) is rotatably connected to the upper end of the cylinder a (6), and a spring a (15) is connected between the rotating ring (13) and the fixed plate (3).

7. The adjustable tension sewing machine presser foot according to claim 6, characterized in that: The side adjustment assembly includes a connecting ring (7) fixedly connected to the outside of the cylinder a (6). Connecting strips (5) are fixedly connected to both sides of the connecting ring (7), and elastic abutment members are connected to the lower ends of the connecting strips (5) on both sides.

8. The adjustable tension sewing machine presser foot according to claim 7, characterized in that: The elastic abutment includes a cylindrical body b (4) fixedly connected to the connecting strip (5), an abutment rod (8) is inserted into the inside of the cylindrical body b (4), a spring b (14) is connected between the top end of the abutment rod (8) and the cylindrical body b (4), and an abutment block (10) is fixedly connected to the lower end of the abutment rod (8).

9. The adjustable tension sewing machine presser foot according to claim 8, characterized in that: The upper surface of the presser foot (1) is provided with several abutment blocks (10) that mate with the abutment groove (9).

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