Roller leather sheath for flat knitting machine

Abstract

The utility model belongs to the technical field of computerized flat knitting machine roller accessories, and relates to a roller leather sheath for a flat knitting machine, which comprises a hollow leather sheath body, a plurality of groups of functional areas axially extending along the leather sheath body are arranged on the peripheral wall of the leather sheath body, and each functional area comprises two traction parts, namely a first traction part and a second traction part. A groove-shaped unloading part is formed between the first traction part and the second traction part, planes and convex blocks are alternately arranged on the first traction part and the second traction part, and grooves and convex blocks on the first traction part are arranged in a staggered manner; compared with the prior art, the utility model can effectively hold the fiber without damaging or hooking the fiber.

Description

Technical Field

[0001] The utility model relates to the technical field of computerized flat knitting machine roller accessories, and more specifically, it relates to a roller leather sleeve for a flat knitting machine. Background Art

[0002] A roller is a cylindrical rotating part that plays the roles of feeding, drafting, outputting, etc. in textile machinery.

[0003] Among them, the roller leather sleeve is a component of the traction drive mechanism on a computerized flat knitting machine. It is a long hollow cylinder, and its surface structure varies according to different application scenarios. The surface has a smooth surface, and in order to increase the pulling force of the roller, thread-shaped texture protrusions or circular small protrusion surfaces are added to the roller surface. However, these roller leather sleeves are only suitable for knitting garment pieces. With the technological progress of computerized flat knitting machines, one-line forming knitting has been realized. One-line forming clothes require a large amount of local knitting, so the roller leather sleeve needs to release different pulling forces for different regions.

[0004] For example, a roller leather sleeve group disclosed in the authorized publication number CN220907816U enables this solution to maintain the effective structure of enhancing bite force and friction in the existing technical solution, and at the same time, through the reasonable arrangement of concave and convex structures in the functional areas on the roller leather sleeve, when the fabric passes between the roller leather sleeve groups, the deformation for releasing the traction force generated can occur evenly on both the inner and outer sides of the fabric, thereby achieving dynamic adjustment of the deformation amount and avoiding the situation of inconsistent internal and external drafting deformations caused by excessive unilateral deformation for a long time.

[0005] Based on the above solution, the ratio of the functional areas of the roller leather sleeve can be further adjusted, and the arrangement of the concave and convex structures on the roller leather sleeve can be further optimized to improve the control of the traction force of the roller on the textile during the knitting process. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a roller leather sleeve for a flat knitting machine with a simple structure and stronger functionality.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A roller leather sleeve for a flat knitting machine, including a hollow leather sleeve body, and a plurality of groups of functional areas extending along the axial direction of the leather sleeve body are provided on the outer peripheral wall of the leather sleeve body.

[0009] The functional area includes two traction parts, namely a first traction part and a second traction part. A groove-shaped force unloading part is formed between the first traction part and the second traction part.

[0010] Both the first traction part and the second traction part are alternately provided with planes and protrusions, and the grooves and protrusions on the first traction part are arranged in an alternating manner.

[0011] The present utility model is further configured such that: the ratio of the width of the traction part to the width of the force unloading part is 1.8 - 2.2.

[0012] The present utility model is further configured such that: the ratio of the length of the convex block to the length of the plane is 1.15 - 1.3.

[0013] The present utility model is further configured such that: a raised part is provided on the end face of the convex block, a concave surface that is concave downward is formed between two adjacent raised parts, and the end faces of the raised part and the concave surface are both arc-shaped.

[0014] The present utility model is further configured such that: the distance between every two adjacent functional areas is the same.

[0015] The present utility model is further configured such that: both ends of the functional area are inclined outward.

[0016] The present utility model is further configured such that: a plurality of anti-slip convex rings are provided on the inner wall of the leather sheath body.

[0017] Compared with the deficiencies of the prior art, the beneficial effects of the present utility model are as follows:

[0018] When the roller performs traction, the leather sheath body has sufficient bending and torsional stiffness. Further, the functional area and the force unloading part have correct groove tooth profiles and a surface finish that meets the requirements, and can effectively hold the fibers without damaging or hooking the fibers. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 It is a usage state diagram of an embodiment of the present utility model;

[0021] Figure 3 It is a partial enlarged view of an embodiment of the present utility model.

[0022] Leather sheath body 1, first traction part 2, second traction part 3, force unloading part 4, plane 5, convex block 6, raised part 7, concave surface 8. Specific Embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0025] As Figures 1 to 3 shown,

[0026] A roller leather sleeve for a flat knitting machine, including a hollow leather sleeve body 1. The inner wall of the leather sleeve body 1 is provided with a plurality of anti-slip convex rings. The outer peripheral wall of the leather sleeve body 1 is provided with a plurality of groups of functional areas extending along the axial direction of the leather sleeve body 1. The distance between every two adjacent functional areas is the same, and both ends of the functional area are inclined outwards.

[0027] The functional area includes two traction parts, namely a first traction part 2 and a second traction part 3. A groove-shaped force unloading part 4 is formed between the first traction part 2 and the second traction part 3. The width ratio of the traction part to the width of the force unloading part 4 is 1.8 - 2.2. Among them, the preferred ratio in this application is 2. The traction part and the force unloading part 4 are arranged around the outer peripheral wall of the leather sleeve body 1.

[0028] Both the first traction part 2 and the second traction part 3 are alternately provided with planes 5 and bumps 6. The grooves on the first traction part 2 are staggered with the bumps 6. The ratio of the length of the bump 6 to the length of the plane 5 is 1.15 - 1.3. Among them, the preferred ratio in this application is 1.2.

[0029] The end face of the bump 6 is provided with a raised part 7. A downward concave concave surface 8 is formed between two adjacent raised parts 7. The end faces of the raised part 7 and the concave surface 8 are both arc-shaped.

[0030] Working principle: When in use, two rollers need to be used in pairs. Two parallelly arranged roller leather sleeves are respectively installed on the corresponding roller shafts. When the upper roller and the lower roller rotate, since the bumps 6 and the planes 5 are staggered, the blank space can be filled, enhancing the extrusion force of the rollers.

[0031] The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roller leather sleeve for a flat knitting machine, comprising a leather sleeve body (1) in a hollow shape, characterized in that: The outer peripheral wall of the leather case body (1) is provided with several groups of functional areas extending along the axial direction of the leather case body (1). The functional area includes two traction parts, namely a first traction part (2) and a second traction part (3). A groove-shaped force relief part (4) is formed between the first traction part (2) and the second traction part (3). The first traction part (2) and the second traction part (3) are both alternately provided with planes (5) and bumps (6), and the grooves on the first traction part (2) are staggered with the bumps (6).

2. The roller leather sleeve for flat knitting machine according to claim 1, characterized in that: The ratio of the width of the traction part to the width of the force relief part (4) is 1.8 - 2.

2.

3. The roller leather sleeve for flat knitting machine according to claim 2, characterized in that: The ratio of the length of the bump (6) to the length of the plane (5) is 1.15 - 1.

3.

4. The roller leather sleeve for flat knitting machine according to claim 3, characterized in that: The end face of the bump (6) is provided with a raised part (7), and a downward concave concave surface (8) is formed between two adjacent raised parts (7). The end faces of the raised part (7) and the concave surface (8) are both arc-shaped.

5. A roller leather sleeve for a flat knitting machine according to claim 4, characterized in that: The distance between every two adjacent functional areas is the same.

6. The roller leather sleeve for flat knitting machine according to claim 5, characterized in that: Both ends of the functional area are inclined outwards.

7. The roller leather sleeve for flat knitting machine according to claim 6, characterized in that: The inner wall of the leather case body (1) is provided with several anti-slip convex rings.

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