A presser foot lifting mechanism

Abstract

The utility model discloses a kind of lift pressure foot mechanisms, including press bar and front lever, front lever is provided with lift pressure column, and the abutting portion is arranged between the lift pressure column of front lever and press bar, and the abutting portion is used to keep the abutment of press bar and the lift pressure column of front lever;Or, press bar is provided with press bar sleeve, and the abutting portion is arranged between press bar sleeve and the lift pressure column of front lever, and the abutting portion is used to keep the abutment of press bar sleeve and the lift pressure column of front lever;By abutting portion, the abutment of press bar or press bar sleeve and the lift pressure column of front lever is always realized, prevent the gap after press bar lifting due to the thickness problem of cloth, to prevent press bar and / or press bar sleeve and the lift pressure column of front lever directly collide in the operation process to produce noise, improve the operation comfort of operation process, prevent long-time collision from causing parts damage simultaneously, improve overall service life.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to a presser foot lifting mechanism. Background Technology

[0002] A sewing machine is a machine that uses sewing thread to create one or more stitches on a workpiece, allowing one or more layers of workpiece to be interwoven or sewn together.

[0003] In existing sewing machine presser foot lifting mechanisms, when the fabric is placed on the needle plate, the presser bar and / or presser bar sleeve lift upwards due to the thickness of the fabric. This causes a gap to form between the presser bar and / or presser bar sleeve and the lifting column of the front lever. Consequently, the presser bar and / or presser bar sleeve collide directly with the lifting column of the front lever during operation, generating noise. Furthermore, prolonged collisions can easily damage parts and affect the overall service life. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lifting foot mechanism to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lifting foot mechanism, comprising a pressure rod and a front lever, wherein the front lever is provided with a lifting pressure column, and an abutting portion is provided between the lifting pressure column of the front lever and the pressure rod, the abutting portion being used to keep the pressure rod abutting against the lifting pressure column of the front lever; or, the pressure rod is provided with a pressure rod sleeve, and an abutting portion is provided between the pressure rod sleeve and the lifting pressure column of the front lever, the abutting portion being used to keep the pressure rod sleeve abutting against the lifting pressure column of the front lever.

[0006] Furthermore, the pressure rod or pressure rod sleeve is provided with a first receiving groove for storing the abutment part. The abutment part includes a first abutment buffer block, a first pressure block, and a first spring. The first abutment buffer block is disposed at the bottom of the first pressure block, the first spring is disposed at the top of the first pressure block, and a first screw is disposed at the top of the first spring. The bottom of the first abutment buffer block abuts against the lifting pressure column.

[0007] Furthermore, the lifting and pressing column is provided with a second receiving groove for storing the abutment part. The abutment part includes a second abutment buffer block, a second pressing block, and a second spring. The second abutment buffer block is located on the top of the second pressing block, and the second spring is located on the bottom of the second pressing block. A second screw is provided at the bottom of the second spring. The top of the second abutment buffer block abuts against the pressing rod or pressing rod sleeve.

[0008] Furthermore, the abutting part includes an elastic buffer pad, which is disposed toward the lifting column and abuts against the lifting column.

[0009] The beneficial technical effects of this utility model are as follows: the abutting part ensures that the pressure rod or pressure rod sleeve is always in contact with the lifting column of the front lever, preventing gaps after the pressure rod is raised due to the thickness of the fabric. This prevents the pressure rod and / or pressure rod sleeve from directly colliding with the lifting column of the front lever during operation, thus preventing noise and improving the operational comfort during operation. At the same time, it prevents damage to parts caused by long-term collisions and improves the overall service life. Attached Figure Description

[0010] Figure 1 This is an exploded view of the overall structure of Embodiment 1 of this utility model;

[0011] Figure 2 This is an exploded view of the overall structure of Embodiment 2 of this utility model;

[0012] Figure 3 This is an exploded view of the overall structure of Embodiment 3 of this utility model;

[0013] Figure 4 This is an exploded view of the overall structure of Embodiment 4 of this utility model.

[0014] Reference numerals: 10, pressure rod; 11, pressure rod sleeve; 12, first receiving groove; 20, front lever; 21, lifting pressure column; 22, second receiving groove; 30, abutment part; 31, first abutment buffer block; 32, first pressure block; 33, first spring; 34, first screw; 35, second abutment buffer block; 36, second pressure block; 37, second spring; 38, second screw; 39, elastic buffer pad. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0016] Example 1, referring to Figure 1As shown, a lifting foot mechanism is provided, including a pressure rod 10 and a front lever 20. The front lever 20 is provided with a lifting pressure column 21. An abutment portion 30 is provided between the lifting pressure column 21 of the front lever 20 and the pressure rod 10. The abutment portion 30 is used to keep the pressure rod 10 abutting against the lifting pressure column 21 of the front lever 20. The pressure rod 10 is provided with a first receiving groove 12 for storing the abutment portion 30. The abutment portion 30 includes a first abutment buffer block 31, a first pressure block 32, and a first spring 33. The first abutment buffer block 31 is provided at the bottom of the first pressure block 32, and the first spring 33 is provided at the top of the first pressure block 32. A first screw 34 is provided at the top of the first spring 33. The bottom of the first abutment buffer block 31 abuts against the lifting pressure column 21. The function of the first spring 33 is to continuously apply pressure to the first abutment buffer block 31, thereby ensuring that the first abutment buffer block 31 always abuts against the lifting pressure column 21.

[0017] Example 2, refer to Figure 2 As shown, the difference between Embodiment 2 and Embodiment 1 is that the pressure rod 10 is provided with a pressure rod sleeve 11, and an abutment portion 30 is provided between the pressure rod sleeve 11 and the lifting pressure column 21 of the front lever 20. The abutment portion 30 is used to keep the pressure rod sleeve 11 abutting against the lifting pressure column 21 of the front lever 20. The pressure rod sleeve 11 is provided with a first receiving groove 12 for storing the abutment portion 30. The abutment portion 30 includes a first abutment buffer block 31, a first pressure block 32, and a first spring 33. The first abutment buffer block 31 is provided at the bottom of the first pressure block 32, the first spring 33 is provided at the top of the first pressure block 32, and a first screw 34 is provided at the top of the first spring 33. The bottom of the first abutment buffer block 31 abuts against the lifting pressure column 21.

[0018] Example 3, referring to Figure 3 As shown, a foot-lifting mechanism is provided, including a pressure rod 10 and a front lever 20. The front lever 20 is provided with a lifting pressure column 21. An abutment portion 30 is provided between the lifting pressure column 21 of the front lever 20 and the pressure rod 10. The abutment portion 30 is used to keep the pressure rod 10 abutting against the lifting pressure column 21 of the front lever 20. The lifting pressure column 21 is provided with a second receiving groove 22 for storing the abutment portion 30. The abutment portion 30 includes a second abutment buffer block 35, a second pressure block 36, and a second spring 37. The second abutment buffer block 35 is provided on the top of the second pressure block 36, and the second spring 37 is provided on the bottom of the second pressure block 36. A second screw 38 is provided at the bottom of the second spring 37. The top of the second abutment buffer block 35 abuts against the pressure rod 10 or the pressure rod sleeve 11. The function of the second spring 37 is to continuously apply pressure to the second abutment buffer block 35, thereby ensuring that the second abutment buffer block 35 always abuts against the pressure rod 10 or the pressure rod sleeve 11.

[0019] Example 4, refer to Figure 4As shown, the difference between Embodiment 4 and Embodiments 1-3 above is that the abutting part 30 includes an elastic buffer pad, which is disposed towards the lifting column 21 and abuts against the lifting column 21.

[0020] In this embodiment, the abutment part 30 ensures that the pressure rod 10 or pressure rod sleeve 11 is always in contact with the lifting column 21 of the front lever 20, preventing gaps after the pressure rod 10 is raised due to the thickness of the fabric. This prevents the pressure rod 10 and / or pressure rod sleeve 11 from directly colliding with the lifting column 21 of the front lever 20 during operation, thus preventing noise and improving the operational comfort during operation. At the same time, it prevents damage to parts caused by long-term collisions, thereby improving the overall service life.

[0021] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A mechanism for lifting a pressure foot, characterized in that: The device includes a pressure rod (10) and a front lever (20). The front lever (20) is provided with a lifting pressure column (21). An abutment part (30) is provided between the lifting pressure column (21) of the front lever (20) and the pressure rod (10). The abutment part (30) is used to keep the pressure rod (10) and the lifting pressure column (21) of the front lever (20) in contact. Alternatively, the pressure rod (10) is provided with a pressure rod sleeve (11). An abutment part (30) is provided between the pressure rod sleeve (11) and the lifting pressure column (21) of the front lever (20). The abutment part (30) is used to keep the pressure rod sleeve (11) and the lifting pressure column (21) of the front lever (20) in contact.

2. The pressure foot lifting mechanism according to claim 1, characterized in that: The pressure rod (10) or pressure rod sleeve (11) is provided with a first receiving groove (12) for storing the abutment part (30). The abutment part (30) includes a first abutment buffer block (31), a first pressure block (32), and a first spring (33). The first abutment buffer block (31) is located at the bottom of the first pressure block (32), and the first spring (33) is located at the top of the first pressure block (32). A first screw (34) is provided at the top of the first spring (33), and the bottom of the first abutment buffer block (31) abuts against the lifting column (21).

3. The pressure foot lifting mechanism according to claim 1, characterized in that: The lifting column (21) is provided with a second receiving groove (22) for storing the abutment part (30). The abutment part (30) includes a second abutment buffer block (35), a second pressure block (36), and a second spring (37). The second abutment buffer block (35) is located on the top of the second pressure block (36), and the second spring (37) is located on the bottom of the second pressure block (36). A second screw (38) is provided at the bottom of the second spring (37). The top of the second abutment buffer block (35) abuts against the pressure rod (10) or the pressure rod sleeve (11).

4. The pressure foot lifting mechanism according to claim 1, characterized in that: The abutting part (30) includes an elastic buffer pad, which is disposed toward the lifting column (21) and the elastic buffer pad is always in contact with the lifting column (21).

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