Roller leather sheath

Abstract

The roller leather sheath comprises a sleeve, a first working group and a second working group are arranged on the outer wall of the sleeve in the circumferential direction, the first working group and the second working group are arranged around the axis of the sleeve at intervals, the first working group comprises a plurality of first working grooves arranged in the length direction of the sleeve, and the second working group comprises a plurality of second working grooves arranged in the length direction of the sleeve. The second working group comprises a plurality of second working grooves which are arranged along the length direction of the sleeve, and the first working grooves and the second working grooves of the adjacent first working group and second working group are arranged in a staggered manner. The first working group and the second working group can be in contact with the fabric all the time, and the first working groove and the second working groove are arranged in a staggered manner, so that the contact area with the fabric is increased, the area of force applied by the sleeve to the fabric in the moving process is larger, and the fabric is moved more stably.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of computerized flat knitting machines, in particular to a roller leather cover. BACKGROUND

[0002] The roller leather cover is a commonly used component of a computerized flat knitting machine, which is a hollow cylinder with a rib on the inner wall. In order to enhance the gripping force and friction of the roller leather cover, concave dots are often arranged on the surface of the roller leather cover.

[0003] A roller leather cover is disclosed in a patent with the application number CN202210741720.8, which has at least two rows of functional zones on the outer surface of the roller leather cover in the axial direction. The functional zones include at least one regular or irregular functional zone block, which is in the form of a groove or a protrusion. The functional zone blocks of the adjacent two rows of functional zones are staggered. The size of the functional zone block is 10mm≤functional zone block≤roller leather cover length / 2 in the axial direction of the roller leather cover, and 10mm≤functional zone block≤roller leather cover outer circumference / 2 in the outer surface of the roller leather cover.

[0004] In the above-mentioned scheme, the cooperation of the protrusions and grooves increases the friction between the fabric and the roller leather cover, so that the roller leather cover can drive the fabric to move. However, since the roller leather cover only relies on the protrusions and grooves arranged on its surface to exert pressure on the local position of the fabric, when the roller leather cover drives the fabric to move, the position of the fabric surface that is not in contact with the protrusions or grooves cannot move synchronously with the movement of the roller leather cover, which leads to the fact that the fabric cannot maintain a whole movement, and some positions of the fabric cannot maintain flatness due to slow movement.

[0005] Therefore, a new technical solution is needed to solve the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0006] In order to make the fabric more stable when moving and maintain a whole movement state, the application provides a roller leather cover.

[0007] The application provides a roller leather cover, which adopts the following technical solution:

[0008] A roller leather cover includes a sleeve, a first working group and a second working group are arranged circumferentially on the outer wall of the sleeve, the first working group and the second working group are arranged at intervals around the axis of the sleeve, the first working group includes a plurality of first working grooves arranged in the length direction of the sleeve, the second working group includes a plurality of second working grooves arranged in the length direction of the sleeve, and the first working grooves and the second working grooves of adjacent first working groups and second working groups are arranged alternately.

[0009] By adopting the technical scheme, the first working groove and the second working groove can keep contact with the fabric during starting and ending, and the first working groove and the second working groove are staggered to increase the contact area with the fabric, so that the fabric receives a larger force from the sleeve during movement, thereby making the movement of the fabric more stable.

[0010] Optionally, the first working groove comprises a first working part and a second working part, one end of the first working part and the second working part is close to each other and communicates, and the other end of the first working part and the second working part is away from each other, and the first working part and the second working part are arranged along the axial direction of the sleeve.

[0011] By adopting the technical scheme, the first working part and the second working part apply forces parallel to the axial direction of the sleeve and away from each other to the fabric, so that the fabric keeps flat, and the fabric can keep flat during conveying.

[0012] Optionally, the side wall away from each other at the connection of the first working part and the second working part is further provided with a first expansion part, and the first expansion part is parallel to the end surface of the sleeve.

[0013] By adopting the technical scheme, the first expansion part parallel to the end surface of the sleeve hinders the movement of the fabric in the direction parallel to the axial direction of the sleeve, so that the fabric can keep stable during conveying.

[0014] Optionally, the side wall close to each other at the end away from each other of the first working part and the second working part is provided with a second expansion part, and the second expansion part is parallel to the end surface of the sleeve.

[0015] By adopting the technical scheme, the second expansion part parallel to the end surface of the sleeve applies a force to hinder the movement of the fabric along the axial direction of the sleeve, so that the fabric can keep stable during conveying.

[0016] Optionally, the side wall of the end away from each other of the first working part and the second working part is parallel to the end surface of the sleeve.

[0017] By adopting the technical scheme, the end surface of the first working part and the second working part applies a force to the fabric to hinder the movement of the fabric along the axial direction of the sleeve, thereby further improving the stability during conveying of the fabric.

[0018] Optionally, the structure of the second working groove is the same as that of the first working groove, and the opening formed by the first working part and the second working part of the second working groove is opposite to the opening formed by the first working part and the second working part of the first working groove.

[0019] By adopting the above technical scheme, the first working groove and the second working groove simultaneously apply external force to the fabric, so that the fabric can be kept flat and can always be subjected to the force applied by the first working groove and the second working groove, and the fabric can be stably conveyed.

[0020] Optionally, the distance between adjacent second working grooves is less than the distance of the one end of the first working part and the second working part of the first working groove away from each other.

[0021] By adopting the above technical scheme, the first working groove and the second working groove can fill the gap between each other, so that the first working groove and the second working groove can always contact the fabric.

[0022] Optionally, the anti-deviation groove is arranged between adjacent first working grooves in the same column and between adjacent second working grooves in the same column.

[0023] By adopting the above technical scheme, the anti-deviation groove applies a force to the fabric to hinder the movement of the fabric along the sleeve axis, so that the conveying of the fabric by the sleeve is kept stable. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The structure of the embodiment of the present application is shown in the figure;

[0025] Figure 2 The A part of the figure is an enlarged view. Figure 1

[0026] In the figure, 1 is a sleeve; 2 is a first working groove; 21 is a first working part; 22 is a second working part; 23 is a first expansion part; 24 is a second expansion part; 3 is a second working groove; and 4 is an anti-deviation groove. DETAILED DESCRIPTION

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] The roller skin sleeve disclosed in the present application is like Figure 1 and Figure 2 ​As shown, it comprises a sleeve 1 in a tubular shape, a plurality of first working groups and second working groups are arranged circumferentially on the outer wall of the sleeve 1, and the first working groups and the second working groups are arranged at intervals around the axis of the sleeve. The first working group comprises a plurality of first working grooves 2 arranged along the axis of the sleeve 1, the first working groove 2 comprises a first working part 21 and a second working part 22, the first working part 21 and the second working part 22 are arranged along the axis of the sleeve 1, and the first working part 21 and the second working part 22 are arranged in a rectangular shape, one end of the two is close to each other and connected, and the other end of the two is away from each other, so that the first working part 21 and the second working part 22 are arranged in a triangular arrow shape. When the fabric contacts the first working group, the first working part 21 and the second working part 22 can exert forces in opposite directions on the fabric, so that the plant can maintain a flat state.

[0029] The side wall of the first working part 21 and the second working part 22 away from each other at one end is provided with a first expansion part 23, the first expansion part 23 on the first working part 21 and the second working part 22 is connected to each other, the side wall of the two first expansion parts 23 connected to each other is arranged parallel to the side wall of the first working part 21 and the second working part 22 connected to each other, and the side wall of the two first expansion parts 23 adjacent to the side wall of the first working part 21 and the second working part 22 is arranged parallel to the end of the sleeve 1, so that when the fabric contacts the first expansion part 23, the fabric can be subjected to the force exerted by the first expansion part 23 parallel to the axis of the sleeve 1, so that the fabric is not easy to move towards the end of the sleeve 1, and the fabric can be kept stable during transportation.

[0030] The side wall of the first working part 21 and the second working part 22 away from each other at one end and close to each other is respectively provided with a second expansion part 24, the second expansion part 24 expands away from the connection of the first working part 21 and the second working part 22, the side wall of the second expansion part 24 away from the connection of the first working part 21 and the second working part 22 is parallel to the side wall of the first working part 21 and the second working part 22 close to each other, and the side wall of the second expansion part 24 adjacent to the side wall of the first working part 21 and the second working part 22 close to each other is parallel to the end of the sleeve 1, so as to further hinder the movement of the fabric along the axis of the sleeve 1.

[0031] The side wall of the first working part 21 and the second working part 22 away from each other at one end is parallel to the end face of the sleeve 1, so as to further hinder the movement of the fabric along the axis of the sleeve 1, so that the sleeve 1 can stably drive the fabric to move during the process of driving the fabric to transport, and the fabric is not easy to slide relative to the axis of the sleeve 1.

[0032] The second working part comprises a plurality of second working grooves 3 arranged along the length direction of the sleeve 1, the structure of the second working groove 3 is the same as that of the first working groove 2, but the opening formed by the first working part 21 and the second working part 22 of the second working groove 3 faces the opening formed by the first working part 21 and the second working part 22 of the first working groove 2, and the first working groove 2 and the second working groove 3 are staggered, so that the first working groove 2 and the second working groove 3 can exert forces on the fabric which are parallel to the circumference of the sleeve 1 but in opposite directions, so that the forces on the fabric can cancel each other out, and the fabric is less likely to move along the axis of the sleeve 1.

[0033] In order to make the fabric receive a larger force area during movement, the distance between adjacent second working grooves 3 in the same second working group is smaller than the distance between the ends of the first working part 21 and the second working part 22 of the first working groove 2, and the distance between adjacent first working grooves 2 in the same first working group is smaller than the distance between the ends of the first working part 21 and the second working part 22 of the second working groove 3. When the fabric passes between the two sleeves 1, the fabric can be in contact with the first working group and the second working group at the beginning and end, and the contact area is larger, so that the fabric receives a larger force area to drive it forward, and the fabric is more stable during conveying.

[0034] In order to further improve the stability of the fabric during conveying between the two sleeves 1, a deflection prevention groove 4 is arranged between adjacent first working grooves 2 in the same row and between adjacent second working grooves 3 in the same row, the deflection prevention groove 4 is arranged perpendicular to the axis of the sleeve 1, and the deflection prevention groove 4 is arranged around the axis of the sleeve 1, so as to exert a force on the fabric which hinders movement along the axis of the sleeve 1, and the fabric can be kept stable during movement between the sleeves 1.

[0035] The implementation principle of the embodiment is that when the fabric passes between the two sleeves 1, the first working groove 2 and the second working groove 3 exert forces on the fabric in opposite directions, so that the friction between the fabric and the sleeve 1 is greater, the sleeve 1 is more likely to drive the fabric to move, and the contact area between the first working groove 2, the second working groove 3 and the fabric always remains a larger range, so that the fabric receives a larger force area, thereby making the movement of the fabric more smooth, and the deflection prevention groove 4 also exerts a force on the fabric which is parallel to the axis of the sleeve 1, so that the fabric is less likely to move along the axis of the sleeve 1.

[0036] The embodiments of the specific embodiment are the preferred embodiments of the application, but do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A roll skin characterized in that: The casing (1) is provided with a first working group and a second working group on the outer wall in the circumferential direction, the first working group and the second working group are arranged at intervals around the axis of the casing (1), the first working group comprises a plurality of first working grooves (2) arranged along the length direction of the casing (1), and the second working group comprises a plurality of second working grooves (3) arranged along the length direction of the casing (1), the first working grooves (2) and the second working grooves (3) of adjacent first working groups and second working groups are arranged alternately.

2. A roll cover according to claim 1, characterised in that: The first working groove (2) comprises a first working part (21) and a second working part (22), one end of the first working part (21) and the second working part (22) is close to each other and communicates, the other end of the first working part (21) and the second working part (22) is away from each other, and the first working part (21) and the second working part (22) are arranged along the axis direction of the casing (1).

3. A roll cover according to claim 2, characterised in that: The side wall of the connection part of the first working part (21) and the second working part (22) away from each other is further provided with a first expansion part (23), and the side wall connected with the first working part (21) and the second working part (22) is arranged parallel to the end face of the casing (1).

4. A roll cover according to claim 2, characterised in that: The side wall of the end of the first working part (21) and the second working part (22) away from each other is provided with a second expansion part (24), and the side wall connected with the first working part (21) and the second working part (22) is arranged parallel to the end face of the casing (1).

5. A roll cover according to claim 2, characterised in that: The side wall of the end of the first working part (21) and the second working part (22) away from each other is arranged parallel to the end face of the casing (1).

6. A roll cover according to claim 2, characterised in that: The structure of the second working groove (3) is the same as that of the first working groove (2), and the opening formed by the first working part (21) and the second working part (22) of the second working groove (3) is opposite to the opening formed by the first working part (21) and the second working part (22) of the first working groove (2).

7. A roll cover according to claim 2, characterised in that: The distance between adjacent second working grooves (3) in the same column is less than the distance between the ends of the first working part (21) and the second working part (22) of the first working groove (2) away from each other.

8. A roll cover according to claim 1, characterised in that: Adjacent first working grooves (2) in the same column and adjacent second working grooves (3) in the same column are both provided with a deviation preventing groove (4).

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