Cutting device for knitted fabric processing

Abstract

The utility model discloses a cutting device for knitted fabric processing, which relates to the technical field of knitted fabric cutting and comprises a supporting table, a positioning rod is fixedly mounted at the top of the supporting table, one end of the positioning rod is rotatably connected with a cutting component, and a bearing table is fixedly mounted on the upper surface of the supporting table. A groove is formed in the bearing table, the cutting assembly comprises a disc, a pressing piece, a rotating rod, a connecting block and a cutting blade, the cutting assembly driven by the gear motor is arranged on the supporting table, the knitted fabric is cut at regular time, the cutting assembly does not use an electric cylinder as a power source, in the cutting process, the cutting efficiency is improved, and the cutting efficiency is improved. By means of the technical scheme, the moving speed of the cutting blade can be greatly increased, so that the problem that due to the fact that the moving speed of the blade is low, the shape of a notch is irregular and incomplete is solved, knitted fabric conveying does not need to be stopped after the problem is solved, equipment abrasion is reduced, and cutting efficiency can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of knitted fabric cutting, in particular to a cutting device for knitted fabric processing. Background Art

[0002] In the garment manufacturing industry, knitted fabrics need to be cut into specific sizes and shapes. This process is called fabric cutting.

[0003] For example, publication number CN217678281U discloses a cutting device for processing knitted textile fabrics, which includes a cutting frame, a transmission rod movably connected to the interior of the cutting frame, a sleeve block provided on the surface of the transmission rod, and the top of the sleeve block passes through the cutting frame and extends to the top of the cutting frame.

[0004] However, in the prior art, when a traditional cutting device cuts knitted fabrics, the power of the blade is usually provided by an electric cylinder. The piston rod in the electric cylinder extends slowly, and the fabric is in a moving state. Therefore, the slow movement of the blade can easily lead to irregular and incomplete cuts on the knitted fabric. At this time, it is necessary to stop feeding the knitted fabric to ensure the cutting quality, and each stop will result in a certain amount of equipment loss. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the piston rod in the electric cylinder extends slowly while the fabric is in a moving state, so the slow movement speed of the blade easily leads to irregular shapes and incomplete cuts in the knitted fabric, and a cutting device for knitted fabric processing is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a cutting device for knitted fabric processing, comprising a support table, a positioning rod fixedly mounted on the top of the support table, one end of the positioning rod being rotatably connected to a cutting assembly, a bearing table fixedly mounted on the upper surface of the support table, and a groove being formed inside the bearing table;

[0007] The cutting assembly includes a disc, a pressing sheet, a rotating rod, a connecting block and a cutting blade. The disc is fixedly mounted at the end of the positioning rod, the pressing sheet is fixedly mounted at the edge of the disc, and notches are provided at the edges of the pressing sheet and the disc. One end of the rotating rod is rotatably connected to the inner wall of the notch, the connecting block is fixedly mounted at one end of the rotating rod, the connecting block and the rotating rod are perpendicular to each other, one end of the cutting blade is fixedly connected to one end of the connecting block, and the cutting blade is located inside the groove.

[0008] Preferably, a reduction motor is provided at the bottom of the support platform, and the reduction motor is located below the positioning rod.

[0009] Preferably, the output end of the reduction motor is fixedly connected to a transmission rod, and the rotation of the transmission rod is connected to the inside of the positioning rod.

[0010] Preferably, the transmission rod is connected to the inside of the disc, and the upper surface and the lower surface of the disc are fixedly mounted with limit rods.

[0011] Preferably, the limiting rod is located on one side of the notch, and one end of the limiting rod is connected to the rotating rod through a tension spring.

[0012] Preferably, a positioning block is fixedly connected to the outer wall of the transmission rod, and the positioning block is fixedly connected to the positioning rod and the support platform.

[0013] Preferably, the positioning blocks are symmetrically distributed on the upper surface and the lower surface of the disc, and one side of the positioning block is fixedly connected to an extension rod.

[0014] Preferably, one end of the extension rod is rotatably connected to a pressing roller, and the pressing roller is located on one side of the connecting block.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] 1. In the utility model, a cutting assembly driven by a reduction motor is arranged on the support table to achieve timed cutting of knitted fabrics. This cutting assembly does not use an electric cylinder as a power source. During the cutting process, the moving speed of the cutting blade can be greatly accelerated, thereby avoiding the problem of irregular and incomplete incision shape caused by slow blade movement. After solving this problem, there is no need to stop the conveying of knitted fabrics, which reduces equipment wear and ensures cutting efficiency.

[0017] 2. In the present invention, a positioning block is provided on the transmission rod, and a pressing roller is provided at the end of the extension rod to push the connecting block. Each time the transmission rod rotates one circle, the pressing roller will drive the connecting block once, thereby completing a cutting operation. In actual use, it is only necessary to control the rotation speed of the transmission rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a cutting device for knitted fabric processing proposed in the utility model;

[0019] Figure 2 This is a side view of a cutting device for knitted fabric processing proposed in the utility model;

[0020] Figure 3 This is a schematic diagram of the planar structure of a cutting assembly of a cutting device for knitted fabric processing proposed in the utility model;

[0021] Figure 4The utility model provides a schematic diagram of the three-dimensional structure of a cutting component of a cutting device for processing knitted fabrics.

[0022] Legend: 1. Support table; 2. Cutting assembly; 3. Positioning rod; 4. Carrying platform; 5. Groove; 6. Reducer motor; 7. Transmission rod; 21. Disc; 22. Pressing sheet; 23. Cutting blade; 24. Positioning block; 25. Extension rod; 26. Notch; 27. Rotating rod; 28. Connecting block; 29. ​​Limiting rod; 210. Pressing roller. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1: Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model provides a cutting device for knitted fabric processing, comprising a support table 1, a positioning rod 3 is fixedly installed on the top of the support table 1, one end of the positioning rod 3 is rotatably connected to the cutting assembly 2, a bearing platform 4 is fixedly installed on the upper surface of the support table 1, and a groove 5 is opened inside the bearing platform 4;

[0026] The cutting assembly 2 includes a disc 21, a pressing piece 22, a rotating rod 27, a connecting block 28 and a cutting blade 23. The disc 21 is fixedly mounted at the end of the positioning rod 3, the pressing piece 22 is fixedly mounted at the edge of the disc 21, and a notch 26 is formed at the edge of the pressing piece 22 and the edge of the disc 21. One end of the rotating rod 27 is rotatably connected to the inner wall of the notch 26. The connecting block 28 is fixedly mounted at one end of the rotating rod 27. The connecting block 28 and the rotating rod 27 are perpendicular to each other. One end of the cutting blade 23 is fixedly connected to one end of the connecting block 28. The cutting blade 23 is located inside the groove 5.

[0027] A reduction motor 6 is provided at the bottom of the support platform 1 , and the reduction motor 6 is located below the positioning rod 3 . The output end of the reduction motor 6 is fixedly connected to a transmission rod 7 , and the rotation of the transmission rod 7 is connected to the inside of the positioning rod 3 .

[0028] The following is a detailed description of the specific settings and functions of this embodiment. The cutting assembly 2 is arranged at both ends of the supporting platform 4. The transmission rod 7 passes through the disc 21 and is rotatably connected to the positioning rod 3. The disc 21 is fixed on the positioning rod 3 to ensure its own structural stability. When in use, the knitted fabric is placed on the supporting platform 4, and the disc 21 is above the supporting platform 4. The pressing piece 22 at its edge can limit the knitted fabric on the supporting platform 4. When cutting, the reduction motor 6 at the bottom of the support platform 1 is started;

[0029] The reduction motor 6 drives the transmission rod 7, which is used to push the rotating rod 27. The rotating rod 27 is in the notch 26 and has sufficient space for movement. The two rotating rods 27 rotate toward the center of the disc 21 at the same time, and drive the cutting blades 23 through the connecting block 28. The two cutting blades 23 are used to cut the knitted fabric. The bidirectional movement can further shorten the moving distance of the cutting blades 23, thereby reducing the cutting time. In this way, the problem of irregular and incomplete cuts on the knitted fabric caused by the slow movement of the blades is solved.

[0030] The shape of the notch 26 is rectangular and can determine the rotation direction of the rotating rod 27. The connecting block 28 installed at its end is used to determine the angle of the cutting blade 23 to ensure that the cutting blade 23 can cut the knitted fabric normally. The cutting blade 23 is in the groove 5 and can move up and down normally.

[0031] Example 2: Figure 1 、 Figure 3 and Figure 4 As shown, the transmission rod 7 is connected to the inside of the disc 21, and the upper surface and the lower surface of the disc 21 are fixedly installed with a limit rod 29, the limit rod 29 is located on one side of the notch 26, and one end of the limit rod 29 is connected to the rotating rod 27 through a tension spring. A positioning block 24 is fixedly connected to the outer wall of the transmission rod 7, and the positioning block 24 is fixedly connected to the positioning rod 3 and the support platform 1. The positioning blocks 24 are symmetrically distributed on the upper surface and the lower surface of the disc 21, and an extension rod 25 is fixedly connected to one side of the positioning block 24. One end of the extension rod 25 is rotatably connected to a pressing roller 210, and the pressing roller 210 is located on one side of the connecting block 28.

[0032] The effect achieved by the entire embodiment is that the limit rods 29 on the upper and lower surfaces of the disc 21 are mainly used to reset the rotating rod 27. A tension spring is fixedly connected between the limit rod 29 and the rotating rod 27. During the rotation of the transmission rod 7, the extension rod 25 will be driven through the positioning block 24. During the rotation of the extension rod 25, the pressing roller 210 moves to the intersection of the connecting block 28 and the rotating rod 27, and thereby pushes the rotating rod 27, thereby achieving the purpose of pushing the cutting blade 23 to move. After the pressing roller 210 rotates away from the connecting block 28, the rebound of the tension spring can bounce the rotating rod 27 back to its initial position.

[0033] The method of use and working principle of this device are as follows: when in use, the knitted fabric is placed on the supporting platform 4, and the pressing piece 22 at the edge of the disc 21 can confine the knitted fabric on the supporting platform 4. When cutting, the reduction motor 6 at the bottom of the support platform 1 is started, and the reduction motor 6 drives the transmission rod 7, which drives the extension rod 25 through the positioning block 24 on the transmission rod 7. When the pressing roller 210 moves to the intersection of the connecting block 28 and the rotating rod 27, it pushes the rotating rod 27 through the connecting block 28, so that the two cutting blades 23 are close to each other in the groove 5, and the knitted fabric is cut;

[0034] The rotating rod 27 is located in the notch 26 and has sufficient space for movement. The direction of rotation of the rotating rod 27 can also be determined. After the pressing roller 210 rotates away from the connecting block 28, the rebound of the tension spring can bounce the rotating rod 27 back to its initial position. The second cutting process can be completed when the pressing roller 210 rotates back to the connecting block 28.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A cutting device for knitted fabric processing, comprising a support table (1), characterized in that: A positioning rod (3) is fixedly mounted on the top of the support platform (1), one end of the positioning rod (3) is rotatably connected to the cutting assembly (2), a bearing platform (4) is fixedly mounted on the upper surface of the support platform (1), and a groove (5) is provided inside the bearing platform (4); The cutting assembly (2) comprises a disc (21), a pressing sheet (22), a rotating rod (27), a connecting block (28) and a cutting blade (23), wherein the disc (21) is fixedly mounted at the end of the positioning rod (3), the pressing sheet (22) is fixedly mounted at the edge of the disc (21), and a notch (26) is provided at the edge of the pressing sheet (22) and the edge of the disc (21), one end of the rotating rod (27) is rotatably connected to the inner wall of the notch (26), the connecting block (28) is fixedly mounted at one end of the rotating rod (27), the connecting block (28) and the rotating rod (27) are perpendicular to each other, one end of the cutting blade (23) is fixedly connected to one end of the connecting block (28), and the cutting blade (23) is located inside the groove (5).

2. A cutting device for knitted fabric processing according to claim 1, characterized in that: A reduction motor (6) is provided at the bottom of the support platform (1), and the reduction motor (6) is located below the positioning rod (3).

3. A cutting device for knitted fabric processing according to claim 2, characterized in that: The output end of the reduction motor (6) is fixedly connected to a transmission rod (7), and the rotation of the transmission rod (7) is connected to the inside of the positioning rod (3).

4. A cutting device for knitted fabric processing according to claim 3, characterized in that: The transmission rod (7) is connected to the inside of the disc (21), and the upper surface and the lower surface of the disc (21) are fixedly mounted with a limiting rod (29).

5. The cutting device for knitted fabric processing according to claim 4, characterized in that: The limiting rod (29) is located on one side of the notch (26), and one end of the limiting rod (29) is connected to the rotating rod (27) via a tension spring.

6. The cutting device for knitted fabric processing according to claim 3, characterized in that: A positioning block (24) is fixedly connected to the outer wall of the transmission rod (7), and the positioning block (24) is fixedly connected to the positioning rod (3) and the support platform (1).

7. A cutting device for knitted fabric processing according to claim 6, characterized in that: The positioning blocks (24) are symmetrically distributed on the upper surface and the lower surface of the disc (21), and an extension rod (25) is fixedly connected to one side of the positioning blocks (24).

8. The cutting device for knitted fabric processing according to claim 7, characterized in that: One end of the extension rod (25) is rotatably connected to a pressing roller (210), and the pressing roller (210) is located on one side of the connecting block (28).

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