Left scissor cam device of weaving machine

Abstract

The utility model discloses a left scissor cam device of a weaving machine, which relates to the field of textile machinery and comprises a first cam body and a second cam body, and one side of the first cam body and one side of the second cam body are fixed through a connecting flange and form a cam body which is integrally circular; the other side of the first cam body and the other side of the second cam body are provided with guide grooves for guiding the motion trail of the scissor arm. The first cam body and the second cam body are fixed into a whole through the connecting flange, and the split type design facilitates disassembly and maintenance. And when maintenance or replacement is needed, only part of components need to be disassembled, so that the maintenance cost and time are reduced.

Description

Technical Field

[0001] The utility model relates to the field of textile machinery, and particularly to a left scissor cam device for a loom. Background Technique

[0002] A loom, also known as a spinning machine or a cotton spinning machine, is a tool used to process raw materials such as threads, silk, and hemp into silk threads and then weave them into fabrics. A cam is one of the key components, which has a curved profile or groove and generally serves as the driving part, performing uniform rotational motion or reciprocating linear motion. There are multiple problems with the left scissor cam device in the existing loom technology and urgent improvement is needed.

[0003] Firstly, the overall structure design of the existing device is unreasonable, resulting in extremely inconvenient disassembly and maintenance. Replacing or repairing requires disassembling the entire device, increasing the maintenance cost and time, and affecting the production efficiency.

[0004] Secondly, the hardness and wear resistance of the materials used are insufficient, resulting in a short service life of the device, frequent maintenance and replacement being required, and the operating cost being increased. At the same time, the wear of the materials directly affects the shearing accuracy and reduces the product quality. In addition, the design of the guiding groove in the existing device is unreasonable, with inappropriate depth and length, resulting in an unstable movement trajectory of the scissor arm, further affecting the product quality. At the same time, the design problem of the guiding groove not only affects the operation stability but also may lead to early wear of the equipment and increase the maintenance frequency.

[0005] In addition, the connection between the central shaft and the cam body is not tight, and there are deviations and wear during the power transmission process. This not only reduces the operating efficiency and stability but also may cause more mechanical failures. In addition, the installation and adjustment process of the device is cumbersome, increasing the operation difficulty and time cost. The replacement of vulnerable parts is not convenient enough, making the maintenance work more complex and further affecting the normal operation of the production line. Content of the Utility Model

[0006] The purpose of the utility model is to provide a left scissor cam device for a loom in order to solve the problem that the overall structure design of the device in the above background technique is unreasonable, resulting in extremely inconvenient disassembly and maintenance.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A left scissor cam device for a loom, comprising a first cam body and a second cam body, one side of the first cam body and the second cam body is fixed through a connecting flange and forms a cam body with an overall circular shape; guiding grooves for guiding the movement trajectory of the scissor arm are arranged on the other side of the first cam body and the second cam body.

[0008] Preferably, it further comprises a central shaft, and the central shaft is arranged in the central part of the cam body and drives the cam body to rotate through a power source.

[0009] Preferably, the material of the cam body is YG8 alloy.

[0010] Preferably, the inner ring of the connecting flange is sleeved on the central shaft.

[0011] Preferably, the connecting flange is provided with mounting holes, and bolts are arranged in the mounting holes and cooperate with the positioning holes of the first cam body and the second cam body.

[0012] Preferably, the mounting hole is a strip-shaped groove with an arc-shaped structure.

[0013] Preferably, the depth of the guiding groove is 2 mm - 10 mm.

[0014] Preferably, the length of the guiding groove is 80 - 120 mm.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The first cam body and the second cam body are fixed to form an integral body through the connecting flange, and the split design facilitates disassembly and maintenance. When repair or replacement is needed, only some components need to be disassembled, reducing the maintenance cost and time; the arc-shaped structure strip-shaped groove mounting holes on the connecting flange cooperate with the positioning holes of the cam body through bolts, providing a flexible installation and adjustment method, ensuring the installation accuracy and operation convenience. The depth and length of the guiding groove ensure the smooth movement of the scissors arm on the predetermined track, improving the accuracy and consistency of the shearing action. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the present utility model.

[0017] Figure 2 is an installation schematic diagram of the connecting flange of the present utility model.

[0018] In the figure: 1. First cam body; 2. Second cam body; 3. Connecting flange; 4. Guiding groove; 5. Central shaft; 6. Mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Refer to Figure 1 and Figure 2As shown in the figure, the present utility model discloses a left scissors cam device for a loom, which includes a first cam body 1 and a second cam body 2. One side of the first cam body 1 and the second cam body 2 is fixed by a connecting flange 3 to form a cam body with an overall circular shape. On the other side of the first cam body 1 and the second cam body 2, there is a guide groove 4 for guiding the movement track of the scissors arm. The first cam body 1 and the second cam body 2 are designed as a split structure, which is convenient for disassembly and maintenance. When replacement or repair is needed, only some components need to be disassembled, reducing the maintenance cost and time. YG8 cemented carbide is used as the material of the cam body, which has extremely high hardness and wear resistance, significantly prolonging the service life of the device and reducing the maintenance frequency and replacement cost.

[0021] In the above embodiment, the depth of the guide groove 4 is between 2 mm and 10 mm; the length of the guide groove 4 is 80 - 120 mm. The design of the depth between 2 mm and 10 mm and the length of 80 - 120 mm of the guide groove 4 ensures the smooth movement of the scissors arm on the predetermined track, improving the accuracy and consistency of shearing. It also includes a central shaft 5, which is arranged at the central part of the cam body and drives the cam body to rotate through a power source. The material of the cam body is YG8 cemented carbide. The inner ring of the connecting flange 3 is sleeved on the central shaft 5. The central shaft 5 is arranged at the central part of the cam body and drives the cam body to rotate through a power source, ensuring the high efficiency and stability of power transmission. The central shaft 5 is sleeved by the inner ring of the connecting flange 3, ensuring the tight fit between the cam body and the central shaft 5 and reducing the possible deviation and wear during the transmission process.

[0022] The connecting flange 3 is provided with mounting holes 6, and bolts are arranged in the mounting holes 6 and cooperate with the positioning holes of the first cam body 1 and the second cam body 2. Through the precisely designed guide groove 4 to guide the movement of the scissors arm, the scissors can perform shearing actions smoothly and continuously, ensuring the high efficiency of the weaving process and the product quality. The mounting holes 6 are strip-shaped grooves with an arc-shaped structure. During use, through the cooperation of the bolts and the positioning holes of the cam body, a flexible installation and adjustment method is provided, ensuring the installation accuracy and operation convenience.

[0023] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes should be covered within the protection scope of the present utility model.

Claims

1. A left scissor cam device for a loom, characterized in that: The invention comprises a first cam body (1) and a second cam body (2); one side of the first cam body (1) and the second cam body (2) are fixed by a connecting flange (3) to form a cam body that is circular as a whole; and the other side of the first cam body (1) and the second cam body (2) is provided with a guide groove (4) for guiding the movement trajectory of the scissor arm.

2. The left scissor cam device of a loom according to claim 1, characterized in that: It also comprises a central shaft (5), which is arranged at the central part of the cam body and drives the cam body to rotate through a power source.

3. The left scissor cam device of a loom according to claim 1, characterized in that: The material of the cam body is YG8 alloy.

4. The left scissor cam device of a loom according to claim 2, characterized in that: The inner ring of the connecting flange (3) is sleeved on the central shaft (5).

5. The left scissor cam device of a loom according to claim 1, characterized in that: The connecting flange (3) is provided with a mounting hole (6), in which a bolt is provided and which cooperates with the positioning holes of the first cam body (1) and the second cam body (2).

6. The left scissor cam device of a loom according to claim 5, characterized in that: The mounting hole (6) is a strip-shaped groove with an arc-shaped structure.

7. The left scissor cam device of a loom according to claim 1, characterized in that: The depth of the guide groove (4) is 2 mm-10 mm.

8. The left scissor cam device of a loom according to claim 1, characterized in that: The length of the guide groove (4) is 80-120 mm.

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