CN220503391U

CN220503391U - Pressure-adjustable presser foot of sewing machine

Info

Publication number: CN220503391U
Application number: CN202321983123.2U
Authority: CN
Inventors: 李开平; 李莉
Original assignee: Chongqing Pengyu Hardware Products Co ltd
Current assignee: Chongqing Pengyu Hardware Products Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-02-20
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses a pressure-adjustable presser foot of a sewing machine, which comprises a bottom plate, wherein the bottom plate is provided with the sewing machine, the sewing machine is provided with a sewing needle, a threaded column is rotationally connected to a supporting connecting column, a telescopic connecting column is in threaded connection with the threaded column, the bottom of the telescopic connecting column is fixedly connected with the presser foot, the top of the threaded column is fixedly connected with a first bevel gear, a sliding groove is formed in the presser foot, a sliding block is arranged in the sliding groove, and the bottom of the sliding block is fixedly connected with a smoothing block.

Description

Pressure-adjustable presser foot of sewing machine

Technical Field

The utility model relates to the technical field of sewing machine presser feet, in particular to a pressure-adjustable sewing machine presser foot.

Background

The sewing machine can be used for sewing fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastics, paper and the like, and the sewn stitch is neat, beautiful, flat and firm, has high sewing speed and is simple and convenient to use;

referring to a sewing machine presser foot with adjustable pressure and application number CN201620618339.2, the bottom plate of the device is pressed on a sewing machine platen, when the sewing machine presser foot is used, the bottom plate is firstly rotated to the outside, a fabric is paved on the sewing machine platen, the bottom plate is rotated to the inside after the fabric is paved, at the moment, the bulge is abutted on the vertical plate, the bottom plate is perpendicular to the vertical plate to compress the fabric, and for fabrics with different thicknesses or different materials, adjusting the adjusting bolts, such as the fabrics with large thickness, the adjusting bolts need larger pressing force, at the moment, the adjusting bolts are screwed to increase the pressing force of the compression spring against the bottom plate, otherwise, the adjusting bolts are loosened to reduce the pressing force so as to achieve the optimal stitch quality;

the presser foot of current sewing machine is mostly fixed, and the pressure of presser foot pressing cloth cover is mostly fixed, can't adjust the pressing force of presser foot according to the different cloth cover of thickness or the different elastic cloth of material, and the flexibility is relatively poor to lead to work efficiency lower, do not have better smooth device on the present presser foot simultaneously, make the cloth easily cause the suture quality not good because of the fold when carrying out the sewing, with this reduction sewing effect.

Therefore, we design a presser foot of a sewing machine with adjustable pressure.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, the pressing force of a presser foot cannot be adjusted according to different cloth covers with different thicknesses or elastic cloth materials with different materials, and the quality of a stitch is poor due to wrinkles when the cloth is sewn, and provides the presser foot of the sewing machine with adjustable pressure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a pressure adjustable sewing machine presser foot, includes the bottom plate, be equipped with the sewing machine on the bottom plate, be equipped with the sewing needle on the sewing machine, fixedly connected with supports the spliced pole on the sewing machine, support the spliced pole internal rotation and be connected with the screw thread post, and threaded connection has the telescopic connection post on the screw thread post, telescopic connection post bottom fixedly connected with presser foot, screw thread post top fixedly connected with first bevel gear, sewing machine internal rotation is connected with the dwang, and fixedly connected with second bevel gear on the dwang, the sliding tray has been seted up on the presser foot, and is equipped with gliding sliding block in the sliding tray, sliding block bottom fixedly connected with smooths the piece, be equipped with on the sliding block and smooth fixing device.

Preferably, the smoothing fixing device comprises fixing holes which are uniformly arranged in a straight line on the presser foot, a sliding fixing connecting column is arranged in each fixing hole, a reset spring is arranged on each fixing connecting column, the other end of each reset spring is fixedly connected with the sliding block, and the fixing connecting column is used for fixing the sliding block through the fixing holes.

Preferably, the telescopic connection column moves up and down in the support connection column through the threaded column.

Preferably, the second bevel gear is rotated in the sewing machine by a rotating lever.

Preferably, the first bevel gear is meshed with the second bevel gear, and the first bevel gear rotates through the second bevel gear.

Preferably, the smoothing block slides on the presser foot by a sliding block.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the threaded column is arranged in the support connecting column, the telescopic connecting column in threaded connection with the threaded column is moved and lifted through rotation of the threaded column, and the pressing force of the presser foot can be adjusted according to different cloth covers or elastic cloth materials with different thicknesses through movement and lifting of the telescopic connecting column, so that the cloth cannot cause poor sewing effect due to too tight or too small pressing force of the presser foot.

2. According to the utility model, the sliding block is arranged on the presser foot, the smoothing block fixedly connected with the sliding block moves through the sliding of the sliding block, and the smoothing block can smooth the folds of the cloth, so that the bad sewing effect of the cloth caused by the folds is avoided, and the working efficiency is effectively improved.

Drawings

FIG. 1 is a schematic view of a presser foot of a sewing machine with adjustable pressure according to the present utility model;

FIG. 2 is a schematic view of a pressure regulator in a presser foot of a sewing machine with adjustable pressure according to the utility model;

fig. 3 is a schematic structural view of a pressure-adjustable smoothing device in a presser foot of a sewing machine.

In the figure: 1 a bottom plate, 2 a sewing machine, 3 a sewing needle, 4 a supporting connecting column, 5 a threaded column, 6 a first bevel gear, 7 a telescopic connecting column, 8 a presser foot, 9 a rotating rod, 10 a second bevel gear, 11 a sliding block, 12 a smoothing block, 13 a fixed hole, 14 a fixed connecting column and 15 a reset spring.

Detailed Description

Referring to fig. 1-3, a presser foot of a sewing machine with adjustable pressure comprises a bottom plate 1, wherein the bottom plate 1 is provided with a sewing machine 2, the sewing machine 2 is provided with a sewing needle 3, the sewing machine 2 is fixedly connected with a support connecting column 4, the support connecting column 4 is rotationally connected with a threaded column 5, the threaded column 5 is in threaded connection with a telescopic connecting column 7, the telescopic connecting column 7 moves and lifts in the support connecting column 4 through the threaded column 5, the bottom of the telescopic connecting column 7 is fixedly connected with a presser foot 8, the top of the threaded column 5 is fixedly connected with a first bevel gear 6, the first bevel gear 6 is meshed with a second bevel gear 10 for transmission, the first bevel gear 6 rotates through the second bevel gear 10, the rotation of the first bevel gear 6 enables the threaded column 5 fixedly connected with the first bevel gear 6 to rotate, the movement and lifting of the telescopic connecting column 7 enables the presser foot 8 fixedly connected with the telescopic connecting column 7 to move and lift, the movement and lifting of the presser foot 8 can adjust the presser foot 8 according to different cloth surfaces or different elastic cloth materials with different thicknesses, and therefore the cloth pressing force cannot be better than the pressing force or the pressing force of the cloth 8;

the sewing machine 2 is rotationally connected with a rotating rod 9, a second bevel gear 10 is fixedly connected to the rotating rod 9, the second bevel gear 10 rotates in the sewing machine 2 through the rotating rod 9, the rotating rod 9 rotates, the second bevel gear 10 fixedly connected with the rotating rod 9 rotates due to the rotation of the rotating rod 9, and the first bevel gear 6 meshed with the second bevel gear 10 rotates due to the rotation of the second bevel gear 10;

the presser foot 8 is provided with a sliding groove, a sliding block 11 is arranged in the sliding groove, the bottom of the sliding block 11 is fixedly connected with a smoothing block 12, the smoothing block 12 slides on the presser foot 8 through the sliding block 11, the sliding block 11 is provided with a smoothing fixing device, the sliding of the sliding block 11 enables the smoothing block 12 fixedly connected with the sliding block 11 to slide, the sliding of the smoothing block 12 can smooth the folds of cloth, poor sewing effect caused by folds of the cloth is avoided, and therefore working efficiency is effectively improved;

referring to fig. 3, the smoothing fixing device comprises a fixing hole 13 which is uniformly arranged in a straight line on the presser foot 8, a sliding fixing connection column 14 is arranged in the fixing hole 13, a reset spring 15 is arranged on the fixing connection column 14, the other end of the reset spring 15 is fixedly connected with the sliding block 11, the fixing connection column 14 is used for fixing the sliding block 11 through the fixing hole 13, the fixing connection column 14 is pulled, the fixing connection column 14 slides out of the fixing hole 13, the sliding block 11 can slide in a sliding groove, the fixing connection column 14 is loosened, the fixing connection column 14 is used for fixing the sliding block through the fixing hole 13 under the action of the reset spring 15, and therefore the smoothing block 12 is fixed, and the fixing connection column 14 cannot influence the sewing of the sewing needle 3.

The working principle of the utility model is as follows: firstly, placing cloth on a bottom plate 1, rotating a rotating rod 9, wherein the rotation of the rotating rod 9 enables a second bevel gear 10 to rotate, and the rotation of the second bevel gear 10 enables a first bevel gear 6 to rotate;

further, the rotation of the first bevel gear 6 enables the threaded column 5 to rotate, the rotation of the threaded column 5 enables the telescopic connecting column 7 to move and lift, the movement and lift of the telescopic connecting column 7 enables the presser foot 8 to move and lift, and the movement and lift of the presser foot 8 can adjust the pressing force of the presser foot 8 according to different cloth covers or different elastic cloth materials with different thicknesses, so that the cloth is pressed, and poor sewing effect caused by too tight or too small pressing force of the presser foot 8 is avoided;

further, the fixed connection column 14 is pulled, so that the fixed connection column 14 slides out of the fixed hole 13, the sliding block 11 can slide in the sliding groove, the sliding block 11 slides to enable the smoothing block 12 to slide, the sliding of the smoothing block 12 can smooth the fold of the cloth, poor sewing effect of the cloth caused by the fold is avoided, and accordingly working efficiency is effectively improved;

further, the fixed connection column 14 is released, so that the fixed connection column 14 fixes the sliding block through the fixed hole 13 under the action of the return spring 15, thereby fixing the smoothing block 12, and the fixed connection column 14 does not affect the sewing of the sewing needle 3.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a pressure adjustable sewing machine presser foot, includes bottom plate (1), its characterized in that, be equipped with sewing machine (2) on bottom plate (1), be equipped with sewing needle (3) on sewing machine (2), fixedly connected with support spliced pole (4) on sewing machine (2), support spliced pole (4) internal rotation is connected with screw thread post (5), and screw thread post (5) are gone up threaded connection has telescopic connection post (7), telescopic connection post (7) bottom fixedly connected with presser foot (8), screw thread post (5) top fixedly connected with first bevel gear (6), sewing machine (2) internal rotation is connected with dwang (9), and fixedly connected with second bevel gear (10) on dwang (9), seted up sliding tray (11) on presser foot (8), and be equipped with sliding block (11) in the sliding tray, sliding block (11) bottom fixedly connected with smooths piece (12), be equipped with on sliding block (11) and smooth fixing device.

2. The presser foot of the sewing machine with adjustable pressure according to claim 1, wherein the smoothing fixing device comprises fixing holes (13) which are uniformly arranged on the presser foot (8) in a straight line, sliding fixing connecting columns (14) are arranged in the fixing holes (13), return springs (15) are arranged on the fixing connecting columns (14), the other ends of the return springs (15) are fixedly connected with the sliding blocks (11), and the fixing connecting columns (14) fix the sliding blocks (11) through the fixing holes (13).

3. The presser foot of a sewing machine with adjustable pressure according to claim 1, characterized in that the telescopic connecting column (7) is moved up and down in the supporting connecting column (4) by means of a threaded column (5).

4. The pressure adjustable sewing machine presser foot of claim 1, characterized in that the second bevel gear (10) is rotated in the sewing machine (2) by a rotating lever (9).

5. The pressure adjustable sewing machine presser foot of claim 1, characterized in that the first bevel gear (6) is in meshed transmission with the second bevel gear (10), and the first bevel gear (6) is rotated by the second bevel gear (10).

6. The presser foot of a sewing machine with adjustable pressure according to claim 1, characterized in that the smoothing block (12) slides on the presser foot (8) by means of a sliding block (11).