Self-adaptive compensation type moving cutter device

Abstract

The utility model discloses a self-adaptive compensation type moving cutter device which comprises a moving cutter assembly located below a fixed cutter assembly, the moving cutter assembly comprises a machine frame, a driving seat located in the machine frame and matched with the machine frame in an up-down sliding mode and a cutter seat portion linked with the driving seat, and the cutter seat portion comprises an adjusting seat and a moving blade inserted in the adjusting seat. The end of the movable blade extends to the fixed blade assembly and abuts against the fixed blade, a sliding column is arranged on one side of the driving base, the adjusting base is arranged on the sliding column in a sleeving mode and is in sliding fit with the sliding column, a spring is arranged between the driving base and the adjusting base and drives the movable blade to abut against the fixed blade continuously, and a positioning bolt is arranged on the adjusting base in a penetrating mode. And the positioning bolt is fixedly assembled on the driving seat. The utility model has the advantages that the clearance between the movable cutter and the fixed cutter can be automatically compensated, the efficient cutting quality is kept, the working quality is high, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment technology, and more specifically, to an adaptive compensation type moving knife device. Background Technology

[0002] In the field of industrial sewing machines, the lower moving blade mechanism is a key component for fabric cutting, and its performance directly affects sewing quality and production efficiency. Traditional lower moving blade mechanisms typically employ a rigid blade holder structure, requiring manual adjustment of the gap and relative position between the moving and fixed blades. However, in actual production, factors such as blade wear from prolonged use, blade replacement, or installation errors can alter the clearance between the moving and fixed blades, leading to decreased cutting efficiency and even problems like fabric jamming or incomplete cutting. Based on these issues, this application proposes a moving blade device that can automatically compensate for the gap between the moving and fixed blades, maintaining efficient cutting performance. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a moving blade device that can automatically compensate for the gap between the moving blade and the fixed blade and maintain a high-efficiency cutting state.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adaptive compensation type moving blade device, comprising a moving blade assembly located below a fixed blade assembly, the moving blade assembly comprising a frame, a drive seat that slides vertically within the frame, and a blade holder connected to the drive seat, the blade holder comprising an adjusting seat and a moving blade inserted within the adjusting seat, the end of the moving blade extending to the fixed blade assembly and abutting against the fixed blade, a sliding column provided on one side of the drive seat, the adjusting seat being slidably fitted onto the sliding column, a spring provided between the drive seat and the adjusting seat, the spring driving the moving blade to continuously abut against the fixed blade, a positioning bolt passing through the adjusting seat, the positioning bolt being fixedly mounted on the drive seat.

[0005] The present invention is further configured such that: a sliding cavity is provided inside the frame, and sliding rods are provided on both sides of the sliding cavity; a through groove is provided on the drive seat, and the drive seat slides up and down through the through groove.

[0006] The present invention is further configured such that: a driving assembly is provided on the other side of the driving seat, the driving assembly includes a rotating shaft and an eccentric rotating block connected to the rotating shaft, a swing arm block is provided between the eccentric rotating block and the driving seat, one end of the swing arm block is connected to the eccentric rotating block, and the other end is connected to the tool holder through a circular rotating block.

[0007] The present invention is further configured such that both the drive seat and the tool holder are provided with slots for inserting the ends of the springs.

[0008] By adopting the above technical solution, a spring structure is added to the tool holder of the moving tool assembly. The elastic deformation characteristics of the material are used to realize automatic compensation of the gap between the moving tool and the fixed tool. This can offset the gap changes caused by blade wear or installation errors in real time, so that the moving tool always maintains a gapless fit with the fixed tool when moving vertically, thus maintaining the high working efficiency of the blade. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a partial structure of the present invention. Figure 1 ;

[0010] Figure 2 This is a schematic diagram of a partial structure of the present invention. Figure 2 ;

[0011] Figure 3 This is a schematic diagram of a partial structure of the present invention. Figure 3 ;

[0012] Figure 4 This is an exploded view of the structure of this utility model;

[0013] Figure 5 This is a partial sectional view of this utility model;

[0014] Figure 6 This utility model is in use. Figure 1 ;

[0015] Figure 7 This utility model is in use. Figure 2 .

[0016] 1. Frame; 10. Slide cavity; 11. Slide rod; 2. Drive seat; 20. Slot; 21. Slide column; 3. Tool holder; 30. Moving blade; 31. Adjustment seat; 310. Positioning bolt; 32. Through slot; 4. Drive assembly; 40. Rotary shaft; 41. Eccentric rotating block; 42. Swing arm block; 43. Circular rotating block; 5. Spring; 6. Fixed tool assembly. Detailed Implementation

[0017] Reference Figures 1 to 7 The embodiments of this utility model will be further described below.

[0018] An adaptive compensation type moving blade device includes a moving blade assembly located below a fixed blade assembly 6. The moving blade assembly includes a frame 1, a drive seat 2 that slides vertically within the frame 1, and a blade holder 3 connected to the drive seat 2. The blade holder 3 includes an adjusting seat 31 and a moving blade 30 inserted into the adjusting seat 31. The end of the moving blade 30 extends to the fixed blade assembly 6 and abuts against the fixed blade. A sliding post 21 is provided on one side of the drive seat 2, and the adjusting seat 31 is slidably fitted onto the sliding post 21. A spring 5 is provided between the drive seat 2 and the adjusting seat 31, and the spring 5 drives the moving blade 30 to continuously abut against the fixed blade. A positioning bolt 310 passes through the adjusting seat 31 and is fixedly mounted on the drive seat 2.

[0019] The frame 1 has a sliding cavity 10, and sliding rods 11 are provided on both sides of the sliding cavity 10. The drive seat 2 has a through groove 32, through which the sliding rods 11 slide up and down. The other side of the drive seat 2 has a drive assembly 4, which includes a rotating shaft 40 and an eccentric rotating block 41 connected to the rotating shaft 40. A swing arm block 42 is provided between the eccentric rotating block 41 and the drive seat 2. One end of the swing arm block 42 is connected to the eccentric rotating block 41, and the other end is connected to the tool holder 3 through a circular rotating block 43. Both the drive seat 2 and the tool holder 3 have slots 20 for inserting the end of the spring 5.

[0020] The rotating shaft 40 is driven to rotate circumferentially by the motor assembly. The rotating shaft 40 drives the eccentric rotating block 41 to rotate, and the eccentric rotating block 41 drives the swing arm block 42 to swing, thereby driving the drive seat 2 to move up and down along the slide rod 11, which in turn drives the moving blade 30 on the blade holder 3 to move up and down, cooperating with the fixed blade assembly 6 to form a cutting process. Through the setting of the spring 5, the moving blade 30 is always in contact with the fixed blade. The elastic deformation characteristics of the material are used to realize the automatic compensation of the gap between the moving blade and the fixed blade. It can offset the gap changes caused by blade wear or installation errors in real time, and maintain the blade's efficient cutting process.

[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. An adaptive compensation type moving tool device, comprising a moving tool assembly located below a fixed tool assembly, characterized in that: The moving blade assembly includes a frame, a drive seat that slides vertically within the frame, and a blade holder connected to the drive seat. The blade holder includes an adjusting seat and a moving blade inserted into the adjusting seat. The end of the moving blade extends to the fixed blade assembly and abuts against the fixed blade. A sliding post is provided on one side of the drive seat, and the adjusting seat is slidably fitted onto the sliding post. A spring is provided between the drive seat and the adjusting seat, and the spring drives the moving blade to continuously abut against the fixed blade. A positioning bolt passes through the adjusting seat and is fixedly mounted on the drive seat.

2. The adaptive compensation type moving tool device according to claim 1, characterized in that: The frame is provided with a sliding cavity, and sliding rods are provided on both sides of the sliding cavity. The drive seat is provided with a through groove, and slides up and down on the sliding rods through the through groove.

3. The adaptive compensation type moving tool device according to claim 2, characterized in that: On the other side of the drive base, there is a drive assembly. The drive assembly includes a rotating shaft and an eccentric rotating block connected to the rotating shaft. A swing arm block is provided between the eccentric rotating block and the drive base. One end of the swing arm block is connected to the eccentric rotating block, and the other end is connected to the tool holder through a circular rotating block.

4. The adaptive compensation type moving tool device according to claim 1, characterized in that: Both the drive seat and the tool holder are provided with slots for inserting the ends of the springs.

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