Presser foot structure of sewing machine

Abstract

The utility model discloses a sewing machine presser foot structure which comprises a connector, a connecting base, a sliding base, a sliding mechanism, a sliding plate, a sliding groove, a spring, a first supporting rod, a second supporting rod, a fixing stud, a lifting mechanism, a sliding block, a lifting groove, a first presser foot, a second presser foot and a fixing bolt. A sliding mechanism is arranged between the sliding seat and the connecting seat, springs are fixedly connected to the front and back of the two sides of the upper end of the sliding seat, the upper ends of the springs are fixedly connected to the upper end of the inner side of the connecting seat, a first supporting rod and a second supporting rod are inserted into the two ends of the interior of the sliding seat, and fixing studs are in threaded connection with the two sides of the lower end of the rear side of the sliding seat; the rear sides of the first supporting rod and the second supporting rod abut against the front end of the fixing stud. Compared with the prior art, the utility model has the advantages that each part can be independently adjusted, and the adjustment and the use are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a presser foot structure of a sewing machine. Background Art

[0002] The sewing machine presser foot is a component used to press the sewing fabric tightly for sewing operations. Depending on the sewing requirements, the sewing machine presser foot used is also different. In sewing operations, high and low presser feet with different presser foot heights on both sides are generally used to achieve edge pressing. When pressing the edge, the high presser foot needs to be used to press the edge of the fabric. However, in actual use, the operator often needs to replace different types of high and low presser feet according to the position of the edge of the fabric. When pressing the line at the same time, the different thicknesses of different fabrics result in inconsistent pressure.

[0003] A sewing machine presser foot described in publication number CN215481641U comprises a presser foot head, a presser foot plate 1 and a presser foot plate 2, wherein a mounting groove is arranged at the bottom of the presser foot head, a pin shaft and a positioning bolt are arranged in the mounting groove, the presser foot plate 1 is provided with a waist groove for the pin shaft to pass through, and a slot 1 is arranged at the lower end of the waist groove, the slot 1 is close to the inner wall of the waist groove and is in an arc shape, the presser foot plate 2 is provided with a through hole for the pin shaft to pass through, the presser foot plate 2 is also provided with a threaded through hole 1 for matching the positioning bolt, and the presser foot plate 1, Two elastic parts are arranged between the presser foot plate 2 and the mounting groove. When the pin shaft contacts the top of the waist-shaped groove, the positioning bolt contacts the bottom of the waist-shaped groove. At this time, the presser foot plate 1 and the presser foot plate 2 are flat presser feet. When the pin shaft contacts the bottom of the waist-shaped groove, the positioning bolt contacts the inner wall of the slot 1 close to the waist-shaped groove. At this time, the presser foot plate 1 and the presser foot plate 2 are high and low presser feet. The conversion of the two presser feet is realized by different matching modes of the pin shaft and the positioning bolt with the waist-shaped groove and the slot 1. However, the prior art still has defects:

[0004] In the prior art, when the height of the presser foot plate 1 needs to be adjusted, it will be restrained by the presser foot plate 2. When the presser foot plate 1 and the presser foot plate 2 are in a high and low presser foot position, the positioning bolt needs to be removed, and the connecting sleeve needs to be left in the slot 1. Then, the bolt 2 needs to be rotated to make the bolt 2 enter the sleeve so that the swinging of the presser foot plate 1 and the presser foot plate 2 will not affect each other. This makes adjustment in use inconvenient. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a presser foot structure for a sewing machine.

[0006] The cam is secured to the upper and lower ends of the cam, and the cam is secured on a central portion of the cam, and the cam is secured on a central portion of the cam.

[0007] As an improvement, the sliding mechanism includes a slide plate fixedly connected to the middle of the two ends of the slide seat, and the two ends inside the connecting seat are provided with slide grooves used in conjunction with the slide plate.

[0008] As an improvement, the lifting mechanism includes a sliding block fixedly connected to the upper ends of both sides of the support rod 1 and the support rod 2, and a lifting groove cooperating with the sliding block is provided inside the sliding seat.

[0009] The advantages of the utility model compared with the prior art are: in the utility model, the fixing studs are loosened, and the support rod one and the support rod two are moved up and down inside the slide seat to adjust the height respectively, so as to adapt to different fabric thicknesses and presser foot requirements. After adjustment, the fixing studs are tightened by a screwdriver to press the support rod one and the support rod two to fix the position, and the presser foot one and the presser foot two can be adjusted separately for easy use. Then, the presser foot one and the presser foot two are rotated to be leveled, and then the fixing bolts at both ends are tightened by a screwdriver to press the presser foot one and the presser foot two to fix the position. Each part can be adjusted separately, and the adjustment and use are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of a sewing machine presser foot structure of the utility model Figure 1 .

[0011] Figure 2 The utility model is a front view of a presser foot structure of a sewing machine.

[0012] Figure 3 yes Figure 2 Schematic diagram of the cross section at AA.

[0013] Figure 4 yes Figure 2 Schematic diagram of the cross section at BB.

[0014] Figure 5 The utility model is a front cross-sectional view of a presser foot structure of a sewing machine.

[0015] Figure 6 This is a schematic diagram of the structure of a sewing machine presser foot structure of the utility model Figure 2 .

[0016] As shown in the figure: 1. Connecting head; 2. Connecting seat; 3. Sliding seat; 4. Sliding mechanism; 41. Sliding plate; 42. Sliding groove; 5. Spring; 6. Support rod one; 7. Support rod two; 8. Fixing stud; 9. Lifting mechanism; 91. Sliding block; 92. Lifting groove; 10. Presser foot one; 11. Presser foot two; 12. Fixing bolt. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] A sewing machine presser foot structure comprises a connector 1, which is used to be fixed to a sewing machine, a connector seat 2 being fixedly connected to the lower end of the connector 1, a slide seat 3 being arranged in the middle of the connector seat 2, a sliding mechanism 4 being arranged between the slide seat 3 and the connector seat 2, springs 5 ​​being fixedly connected to the front and rear sides of the upper end of the slide seat 3, the upper end of the spring 5 being fixedly connected to the inner upper end of the connector seat 2, the sliding mechanism 4 comprising a slide plate 41 fixedly connected to the middle of the two ends of the slide seat 3, slide grooves 42 for cooperating with the slide plate 41 being provided at the two ends inside the connector seat 2, the slide seat 3 being slidably limited in the slide groove 42 by the slide plate 41, and the spring 5 providing extrusion elastic force when the slide seat 3 slides up and down.

[0019] A support rod 1 6 and a support rod 2 7 are inserted at both ends of the slide seat 3, and fixing studs 8 are threadedly connected on both sides of the lower end of the rear side of the slide seat 3. The rear sides of the support rods 1 6 and the support rods 2 7 are in contact with the front ends of the fixing studs 8. A lifting mechanism 9 is provided inside the slide seat 3 for use with the support rods 1 6 and the support rods 2 7. The lifting mechanism 9 includes a slider 91 fixedly connected to the upper ends of both sides of the support rods 1 6 and the support rods 2 7. A lifting slot 92 for use with the slider 91 is provided inside the slide seat 3. The support rods 1 6 and the support rods 2 7 can be moved up and down inside the slide seat 3 to adjust the height separately to suit different fabric thicknesses and presser foot requirements. After adjustment, the fixing studs 8 are tightened by a screwdriver to press against the support rods 1 6 and the support rods 2 7 to fix the positions, and can be adjusted separately for easy use.

[0020] The lower ends of the support rod 1 6 and the support rod 2 7 are rotatably connected with the presser foot 10 and the presser foot 2 11 respectively, and the lower ends of the support rod 1 6 and the support rod 2 7 on the side away from each other are threadedly connected with a fixing bolt 12, and the fixing bolts 12 at both ends are respectively abutted against the upper ends of the presser foot 10 and the presser foot 2 11, and the presser foot 10 and the presser foot 2 11 can be rotated at the lower ends of the support rod 1 6 and the support rod 2 7 to adjust the angle, level the presser foot 10 and the presser foot 2 11, and then tighten the fixing bolts 12 at both ends with a screwdriver to tighten the presser foot 10 and the presser foot 2 11 into a fixed position.

[0021] When the utility model is implemented, Figure 1-6 As shown, when in use, loosen the fixing stud 8 as needed, move the support rod 1 6 and the support rod 2 7 up and down inside the slide 3 to adjust the height to suit different fabric thicknesses and presser foot requirements, and after adjustment, tighten the fixing stud 8 with a screwdriver to press the support rod 1 6 and the support rod 2 7 to fix the position, which can be adjusted separately for easy use.

[0022] Then, presser foot 10 and presser foot 2 11 are rotated and leveled, and then the fixing bolts 12 at both ends are tightened with a screwdriver to presser foot 10 and presser foot 2 11 against and fix them in position, and then they are fixed to the sewing machine through the connector 1.

[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A sewing machine presser foot structure, comprising a connector (1), characterized in that: The lower end of the connector (1) is fixedly connected to a connecting seat (2), a sliding seat (3) is arranged in the middle of the connecting seat (2), a sliding mechanism (4) is arranged between the sliding seat (3) and the connecting seat (2), springs (5) are fixedly connected to the front and rear sides of the upper end of the sliding seat (3), the upper end of the spring (5) is fixedly connected to the inner upper end of the connecting seat (2), a support rod (6) and a support rod (7) are inserted at both ends of the interior of the sliding seat (3), and fixing studs (8) are threadedly connected to the lower end of the rear side of the sliding seat (3), and the support rod (1) is fixedly connected to the inner upper end of the connecting seat (2). The first support rod (6) and the second support rod (7) are respectively rotatably connected with a presser foot (10) and a presser foot (11) at their lower ends, and a fixing bolt (12) is threadedly connected at the lower ends of the first support rod (6) and the second support rod (7) on the side away from each other, and the fixing bolts (12) at both ends are respectively in contact with the upper ends of the first support rod (10) and the second support rod (11).

2. A sewing machine presser foot structure according to claim 1, characterized in that: The sliding mechanism (4) comprises a slide plate (41) fixedly connected to the middle of the two ends of the slide seat (3), and the two ends inside the connecting seat (2) are provided with slide grooves (42) used in conjunction with the slide plate (41).

3. A sewing machine presser foot structure according to claim 1, characterized in that: The lifting mechanism (9) comprises a sliding block (91) fixedly connected to the upper ends of the first support rod (6) and the second support rod (7), and a lifting groove (92) for cooperating with the sliding block (91) is provided inside the sliding seat (3).

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