Knitting triangle for flat knitting machine
By designing a knitting triangle for a transverse knitting machine, the trapezoidal structure of the downward triangle increases the friction force of the long needle, the problem of knitting needles being easily moved in high-speed motion is solved, and the stability and production efficiency of textile machinery are improved.
Patent Information
- Application Number
- CN202421861584.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In existing textile machinery, knitting needles are prone to string needles when they are reciprocating at high speed, which affects the quality and production efficiency of fabrics.
A braiding triangle for a transverse knitting machine is designed, including a braiding triangle body and a solid-mounted downward triangle. The downward triangle is designed through the trapezoidal structure of the transition slope and the downward part to increase the friction force of the long needle in the needle groove to prevent the knitting needle from moving in a string.
It effectively solves the problem of knitting needle string needles, improves the operating stability and knitting quality of textile machinery, reduces fault downtime, and reduces production costs.
Smart Images
Figure CN222821800U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flat knitting machines, in particular to a knitting cam used for flat knitting machines. Background Art
[0002] In the textile production process, the stable operation of knitting needles is crucial to the knitting quality and efficiency. However, in the prior art, knitting needles are prone to stringing when they reciprocate at high speed, which not only affects the quality of the fabric, but also may cause the knitting process to be interrupted, produce defective products, and increase maintenance costs. Therefore, solving the problem of knitting needle stringing is the key to improving the performance and production efficiency of textile machinery. Utility Model Content
[0003] The utility model aims at the shortcomings of the prior art and provides a knitting cam for a flat knitting machine.
[0004] In order to solve the above technical problems, the utility model is solved by the following technical solutions:
[0005] A knitting cam for a flat knitting machine comprises a knitting cam body and a pressing cam fixedly mounted on the knitting cam body and integrally formed, the pressing cam comprising a transition sloped portion and a pressing portion, both sides of the pressing portion are provided with transition sloped portions, the transition sloped portion and the working surfaces of the pressing portion are smoothly connected and together form a pressing structure with a trapezoidal cross section.
[0006] Preferably, the height of the pressing portion is 3.0 mm to 3.2 mm.
[0007] Preferably, the width of the pressing portion is 3.2 mm to 4.5 mm.
[0008] Preferably, the angle between the working bevel of the transition bevel portion and the horizontal movement direction of the flat knitting machine head is 20° to 25°.
[0009] Preferably, the transition sloped portions on both sides of the pressing portion are symmetrically arranged.
[0010] Preferably, a chamfer is provided at the connection between the transition slope portion and the working surface of the pressing portion.
[0011] Preferably, the pressing cam is located at the lower end of the knitting cam body.
[0012] Preferably, two pressing cams are fixedly mounted on the lower end of a knitting cam body.
[0013] Due to the adoption of the above technical scheme, the utility model has significant technical effects: the utility model has a simple structure, and the structure is compact by integrating the knitting triangle body and the pressing triangle, which is easy to install and maintain, and does not require large-scale transformation of the main structure of the existing textile machinery, thereby reducing production costs and maintenance difficulties; in addition, the utility model has high stability. The utility model effectively solves the problem of knitting needle stringing by increasing the friction of the long needle in the needle groove, thereby improving the operating stability of the textile machinery, reducing the downtime caused by stringing, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model.
[0015] The parts indicated by the numbers in the accompanying drawings are as follows: 1—weaving cam body, 2—pressing cam, 21—transition slope portion, 22—pressing portion. DETAILED DESCRIPTION
[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Example 1
[0018] A weaving cam for a flat knitting machine, as shown in the figure, includes a weaving cam body 1, and also includes a pressing cam 2 fixedly mounted on the weaving cam body 1 and integrally formed, the pressing cam 2 includes a transition inclined portion 21 and a pressing portion 22, both sides of the pressing portion 22 are provided with a transition inclined portion 21, the working surfaces of the transition inclined portion 21 and the pressing portion 22 are smoothly connected and together form a pressing structure with a trapezoidal cross-section.
[0019] In a flat knitting machine, the spring needle head contacts the long needle bar, and a needle groove for accommodating the spring needle and the long needle is provided on the needle plate. During the knitting process of the flat knitting machine head, when the spring needle butt reaches the area where the pressing triangle 2 is located, the long needle butt is outside the knitting needle track. When the spring needle butt contacts the highest point of the pressing triangle, the pressing triangle 2 applies pressure to the spring needle butt, causing the spring needle to sink into the needle groove of the needle plate for a certain distance. Since the spring needle contacts the long needle, the long needle butt connected to the knitting needle also sinks into the needle groove for a certain distance.
[0020] After the long needle butt sinks into the needle groove, the long needle rod contacts the spring needle needle head; after the long needle rod is subjected to pressure, the long needle tail contacts the bottom of the needle groove under the action of the elastic force of the needle rod. The above two contact points increase the friction of the long needle in the needle groove, thereby effectively preventing the knitting needle from moving in a high-speed motion process.
[0021] The present application has a remarkable anti-needle stringing effect for flat knitting machines. Through ingenious structural design and reasonable working principle, it effectively solves the problem of needle stringing while ensuring the continuity of knitting, improves the operating stability and weaving quality of textile machinery, and has significant economic and social value.
[0022] Example 2
[0023] The same as the first embodiment, except that the height of the pressing portion 22, ie, the pressing height, is 3.1 mm.
[0024] The applicant gradually debugged according to the actual knitting situation and found the most suitable data for the transition slope portion 21 and the pressing portion 22 to ensure that it can apply appropriate pressure to the butt of the spring needle, which can effectively prevent the needle from being strangled and will not cause excessive resistance to the normal movement of the knitting needle.
[0025] Example 3
[0026] The same as the first embodiment, except that the width of the pressing portion 22 is 3.8 mm.
[0027] Example 4
[0028] The same as the first embodiment, except that the angle between the working bevel of the transition bevel portion 21 and the horizontal movement direction of the flat knitting machine head is 22°.
[0029] Example 5
[0030] The embodiment is the same as the first embodiment, except that the transition inclined portions 21 on both sides of the pressing portion 22 are symmetrically arranged.
[0031] A chamfer is provided at the connection between the transition slope portion 21 and the working surface of the pressing portion 22 .
[0032] The pressing cam 2 is located at the lower end of the knitting cam body 1 .
[0033] Example 6
[0034] The same as the first embodiment, except that two pressing cams 2 are fixedly mounted on the lower end of a knitting cam body 1 .
[0035] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.
Claims
1. A knitting cam for a flat knitting machine, comprising a knitting cam body (1), characterized in that: The invention also comprises a pressing triangle (2) fixedly mounted on the braiding triangle body (1) and integrally formed, the pressing triangle (2) comprising a transition inclined surface (21) and a pressing portion (22), both sides of the pressing portion (22) are provided with transition inclined surfaces (21), and the working surfaces of the transition inclined surface (21) and the pressing portion (22) are connected and jointly form a pressing structure with a trapezoidal cross section.
2. A knitting cam for a flat knitting machine according to claim 1, characterized in that: The height of the pressing portion (22) is 3.0 mm to 3.2 mm.
3. A knitting cam for a flat knitting machine according to claim 1, characterized in that: The width of the pressing portion (22) is 3.2 mm to 4.5 mm.
4. A knitting cam for a flat knitting machine according to claim 1, characterized in that: The included angle between the working bevel of the transition bevel portion (21) and the horizontal moving direction of the flat knitting machine head is 20° to 25°.
5. A knitting cam for a flat knitting machine according to claim 1, characterized in that: The transition inclined portions (21) located on both sides of the pressing portion (22) are symmetrically arranged.
6. A knitting cam for a flat knitting machine according to claim 1, characterized in that: A chamfer is provided at the connection between the transition slope portion (21) and the working surface of the pressing portion (22).
7. A knitting cam for a flat knitting machine according to claim 1, characterized in that: The pressing cam (2) is located at the lower end of the knitting cam body (1).
8. A knitting cam for a flat knitting machine according to claim 1, characterized in that: Two pressing cams (2) are fixedly mounted on the lower end of a knitting cam body (1).