Jacking positioning device of sewing machine

Abstract

The utility model belongs to the technical field of sewing machines, and particularly relates to a top pressure positioning device of a sewing machine, which comprises a mounting plate and a side plate mounted on the side edge of the mounting plate, and the other side of the side plate is connected with a cylinder bottom plate; the air cylinder bottom plate is arranged on the mounting plate, the inner side of the air cylinder bottom plate is connected with a constant pressure air cylinder, an air supply pipe is arranged on the surface of the constant pressure air cylinder, the output end of the constant pressure air cylinder is connected with a telescopic rod, and the other end of the telescopic rod is connected with a positioning block. The positioning block at one end of the telescopic rod is driven to move, then the silica gel pad on one side of the positioning block is driven to press and position the cloth, the cloth is conveniently limited, the cloth sewing efficiency is improved, in addition, the positioning block is taken down from one end of the telescopic rod by rotating the screw rod, and then the positioning block is conveniently and rapidly disassembled and replaced. Positioning blocks of different specifications can be conveniently replaced for use, and the jacking and positioning effect of the sewing machine is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machines, and particularly relates to a top pressing and positioning device for a sewing machine. Background Technique

[0002] The top pressing and positioning device for a sewing machine is an important part of the sewing machine, mainly used for top pressing and positioning the fabric during the sewing process to ensure the accuracy and quality of sewing;

[0003] When sewing the fabric, the fabric is placed on the workbench of the sewing machine. The pressure roller or presser foot of the top pressing and positioning device descends under the action of the driving structure, contacts the fabric and applies a certain pressure. If it is a pressure roller, during the movement of the fabric, the pressure roller will rotate along with the movement of the fabric, which can not only keep the fabric in a tensioned state, but also will not cause too much resistance to the movement of the fabric; if it is a presser foot, when the sewing needle is sewing, the presser foot will always fix the fabric on the workbench to ensure that the sewing needle can accurately form a stitch on the fabric. When the sewing is completed, the driving structure will drive the pressure roller or presser foot to rise so as to take out the sewn fabric. However, when using the top pressing and positioning mechanism of the sewing machine, the top pressing and positioning block and the mechanism form a whole, which makes the top pressing and positioning block unable to be quickly disassembled and repaired, resulting in the inability to quickly replace other types of positioning blocks, affecting the positioning effect of the sewing machine. Content of the Utility Model

[0004] The purpose of the utility model is to provide a top pressing and positioning device for a sewing machine, aiming to solve the problem that when using the top pressing and positioning mechanism of the sewing machine in the prior art, the top pressing and positioning block and the mechanism form a whole, which makes the top pressing and positioning block unable to be quickly disassembled and repaired, resulting in the inability to quickly replace other types of positioning blocks, affecting the positioning effect of the sewing machine.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A top pressing and positioning device for a sewing machine, including a mounting plate and a side plate mounted on the side of the mounting plate, and the other side of the side plate is connected with a cylinder bottom plate;

[0006] The inner side of the cylinder bottom plate is connected with a constant pressure cylinder, a gas supply pipe is installed on the surface of the constant pressure cylinder, the output end of the constant pressure cylinder is connected with a telescopic rod, the other end of the telescopic rod is connected with a positioning block, one end of the telescopic rod close to the positioning block is connected with an assembly plate, one side of the positioning block close to the assembly plate is connected with an assembly seat, a guide block is connected to the inner wall of the assembly seat, and a screw rod penetrates through the outer side wall of the assembly seat.

[0007] Preferably, a silica gel pad is installed on the outer side wall of the positioning block, and the positioning block is docked with the assembly plate through the assembly seat.

[0008] Preferably, as a pressing and positioning device of a sewing machine of the present utility model, the constant pressure cylinder is located between the mounting plate and the cylinder bottom plate, and the output end of the constant pressure cylinder passes through the mounting plate and extends to the outside of the mounting plate.

[0009] Preferably, as a pressing and positioning device of a sewing machine of the present utility model, the mounting plate is connected to the sewing machine through bolts and openings on its surface.

[0010] Preferably, as a pressing and positioning device of a sewing machine of the present utility model, a guiding groove is provided on the surface of the assembling plate close to the guiding block, and the guiding block is slidably connected to the guiding groove.

[0011] Preferably, as a pressing and positioning device of a sewing machine of the present utility model, the screw rod is threadedly connected to the assembling seat, and a locking groove is provided on one side of the assembling plate close to the screw rod.

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

[0013] In the present utility model, the mounting plate is installed on the surface of the sewing machine, and then the constant pressure cylinder is started to drive the positioning block at one end of the telescopic rod to move, thereby driving the silica gel pad on one side of the positioning block to press and position the fabric, which is convenient for limiting the fabric and improving the sewing efficiency of the fabric. In addition, by rotating the screw rod, the positioning block is removed at one end of the telescopic rod, which is convenient for quickly disassembling and replacing the positioning block, and is convenient for replacing positioning blocks of different specifications for use, thereby improving the pressing and positioning effect of the sewing machine. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a schematic diagram of the connection structure of the cylinder bottom plate of the present utility model;

[0016] Figure 2 is a schematic diagram of the installation structure of the constant pressure cylinder of the present utility model;

[0017] Figure 3 is a schematic diagram of the connection structure of the positioning block of the present utility model;

[0018] Figure 4 is a schematic cross-sectional structure diagram of the assembling seat of the present utility model.

[0019] In the figure: 1. mounting plate; 2. side plate; 3. cylinder bottom plate; 4. constant pressure cylinder; 5. air supply pipe; 6. telescopic rod; 7. positioning block; 8. assembly plate; 9. assembly seat; 10. guide block; 11. guide groove; 12. screw; 13. locking groove. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides the following technical solutions: a top pressure positioning device for a sewing machine, including a mounting plate 1 and a side plate 2 installed on the side of the mounting plate 1, and the other side of the side plate 2 is connected with a cylinder bottom plate 3;

[0022] The inner side of the cylinder bottom plate 3 is connected with a constant pressure cylinder 4, the surface of the constant pressure cylinder 4 is installed with an air supply pipe 5, the output end of the constant pressure cylinder 4 is connected with a telescopic rod 6, the other end of the telescopic rod 6 is connected with a positioning block 7, one end of the telescopic rod 6 close to the positioning block 7 is connected with an assembly plate 8, one side of the positioning block 7 close to the assembly plate 8 is connected with an assembly seat 9, the inner wall of the assembly seat 9 is connected with a guide block 10, and the outer side wall of the assembly seat 9 is penetrated and connected with a screw 12.

[0023] Preferably: a silica gel pad is installed on the outer side wall of the positioning block 7, and the positioning block 7 is docked with the assembly plate 8 through the assembly seat 9.

[0024] During specific use, through the use of the positioning block 7, it is convenient to press and position the fabric.

[0025] Preferably: the constant pressure cylinder 4 is located between the mounting plate 1 and the cylinder bottom plate 3, and the output end of the constant pressure cylinder 4 passes through the mounting plate 1 and extends to the outside of the mounting plate 1.

[0026] During specific use, by starting the use of the constant pressure cylinder 4, it is convenient to press and position the fabric and improve the sewing effect of the fabric.

[0027] Preferably: the mounting plate 1 is connected to the sewing machine through bolts and the openings on its surface.

[0028] During specific use, through the use of the mounting plate 1, it is convenient to install the top pressure positioning mechanism on the surface of the sewing machine.

[0029] Preferably: a guide groove 11 is opened on the surface of the assembly plate ⑧ close to the guide block ⑩, and the guide block ⑩ is slidably connected with the guide groove 11.

[0030] During specific use, the guiding block 10 is slid along the guiding groove 11 on the surface of the assembling plate 8, facilitating the stable installation of the positioning block 7.

[0031] Preferably: The screw rod 12 is in threaded connection with the assembling seat 9, and a locking groove 13 is formed on one side of the assembling plate 8 close to the screw rod 12.

[0032] During specific use, the screw rod 12 is rotated along the opening on the side of the assembling seat 9, and then the screw rod 12 is conveniently fitted into the locking groove 13 on the side of the assembling plate 8, facilitating the stable installation of the positioning block 7.

[0033] The working principle of the present utility model during specific use: First, the mounting plate 1 is installed on the surface of the sewing machine, and then the constant-pressure cylinder 4 is started to drive the positioning block 7 at one end of the telescopic rod 6 to move, thereby driving the silica gel pad on one side of the positioning block 7 to press and position the fabric, facilitating the limitation of the fabric and improving the sewing efficiency of the fabric. Additionally, by rotating the screw rod 12, the screw rod 12 is taken out at the locking groove 13 on one side of the assembling plate 8, and then the assembling plate 8 is removed from the surface of the assembling seat 9, thereby driving the guiding groove 11 on the surface of the assembling plate 8 to slide along the guiding block 10, and the positioning block 7 is removed at one end of the telescopic rod 6, thereby facilitating the rapid disassembly and replacement of the positioning block 7, facilitating the replacement of positioning blocks 7 of different specifications for use, and improving the pressing and positioning effect of the sewing machine.

[0034] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A top pressure positioning device for a sewing machine, comprising a mounting plate (1) and a side plate (2) mounted on the side of the mounting plate (1), characterized in that: The other side of the side plate (2) is connected with a cylinder bottom plate (3); The inner side of the cylinder bottom plate (3) is connected with a constant-pressure cylinder (4). A gas supply pipe (5) is installed on the surface of the constant-pressure cylinder (4). The output end of the constant-pressure cylinder (4) is connected with a telescopic rod (6). The other end of the telescopic rod (6) is connected with a positioning block (7). One end of the telescopic rod (6) close to the positioning block (7) is connected with an assembly plate (8). One side of the positioning block (7) close to the assembly plate (8) is connected with an assembly seat (9). A guide block (10) is connected to the inner wall of the assembly seat (9). A screw rod (12) penetrates through the outer side wall of the assembly seat (9).

2. The top pressing and positioning device of a sewing machine according to claim 1, characterized in that: A silica gel pad is installed on the outer side wall of the positioning block (7). The positioning block (7) is docked with the assembly plate (8) through the assembly seat (9).

3. The top pressing and positioning device of a sewing machine according to claim 1, characterized in that: The constant-pressure cylinder (4) is located between the mounting plate (1) and the cylinder bottom plate (3). The output end of the constant-pressure cylinder (4) passes through the mounting plate (1) and extends to the outside of the mounting plate (1).

4. The top pressing and positioning device of a sewing machine according to claim 1, characterized in that: The mounting plate (1) is connected to the sewing machine through bolts and the openings on its surface.

5. The top pressure positioning device of a sewing machine according to claim 1, characterized in that: A guide groove (11) is formed on the surface of the assembly plate (8) close to the guide block (10). The guide block (10) is slidably connected with the guide groove (11).

6. The top pressing and positioning device of a sewing machine according to claim 1, characterized in that: The screw rod (12) is threadedly connected with the assembly seat (9). A locking groove (13) is formed on one side of the assembly plate (8) close to the screw rod (12).

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