Roller structure of computerized flat knitting machine

Abstract

The utility model discloses a roller structure of a computerized flat knitting machine, which comprises a rotating shaft, a driven shaft, a support assembly arranged between the rotating shaft and the driven shaft, and at least one limit support piece used for supporting the rotating shaft, the limiting supporting piece is fixedly installed on a needle bed base of the computerized flat knitting machine, the limiting supporting piece is arranged at the lower end of the support assembly, the side, corresponding to the support assembly, of the limiting supporting piece is provided with a stopping part, and the other side, corresponding to the support assembly, of the limiting supporting piece is provided with a limiting face. The limiting face inclines downwards from the side close to the stop part to the side away from the stop part, the limiting supporting piece limits the rotation range of the support assembly through the stop part and the limiting face, and through the structural design of the limiting supporting piece, the support assembly can be limited to swing within the allowable range, and the problem that fabric is hung can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery parts, in particular to a roller structure of a computerized flat knitting machine. Background Art

[0002] Rollers are important components on computer knitting machines, used to wind and pull fabrics. For example, a high-position roller device for a computer knitting machine disclosed in the patent document with the authorization announcement number CN212611210U includes two front and rear rollers, each of which has a thicker rotating shaft and a thinner driven shaft. A bracket (with a cross section approximately trapezoidal, and arc surfaces on the top and bottom) is provided between the rotating shaft and the driven shaft. Roller leather covers are provided on the rotating shaft, the driven shaft and the bracket outer shell. When the rotating shaft rotates, the driving roller leather cover rotates outside the rotating shaft, the driven shaft and the bracket. When the roller leather covers (a group) of the front and rear rollers rotate toward each other, the fabric between the roller leather covers of the front and rear rollers is pulled. Specifically, the roller traction force is formed by the rotation of the front and rear rollers (combination) and the friction of the corresponding two roller leather covers. The magnitude of the traction force depends on the rotation speed of the two combined roller leather covers and the contact area of ​​the two roller leather covers. The faster the speed or the larger the contact area of ​​the two roller leather covers, the greater the traction force generated, and vice versa.

[0003] The ideal working state is: the rotating shafts of the front and rear rollers are parallel to the driven shaft and have the same height, so that the point of application for pulling the fabric is located on the outer surface of the roller sheath at the driven shaft, and the contact area of ​​the two roller sheaths is stable and consistent. At this time, the traction force of the roller sheaths of the front and rear rollers on the fabric is consistent and uniform. However, if the position of the bracket is offset (such as deformation of the middle or other parts of the longer bracket), the position of the driven shaft will change, the heights of the driven shafts of the front and rear rollers will be different, and they will not be at the same height, and the contact area of ​​the two roller sheaths will be different. In this case, the point of application for pulling the fabric is not between the driven shafts of the front and rear rollers, which will lead to uneven pulling force on the fabric, inconsistent traction, and fabric defects.

[0004] Therefore, technicians have improved the existing limiting support plate. Specifically, two stop protrusions are set on the outer periphery of the limiting support plate to form limiting grooves on both sides of the two stop protrusions. The bracket can be movably set in the limiting groove, so that the rotation range of the bracket is limited by the two stop protrusions. However, this structure has the following problems: since the fabric is made of flexible material, there will be a problem of fabric hanging when the front and rear rollers are opened, that is, when the fabric falls, there is a problem that the fabric is hung on the inner stop protrusion and cannot fall smoothly, so improvement is needed. Summary of the invention

[0005] The utility model aims to provide a roller structure of a computerized flat knitting machine, which can limit the swing of a bracket assembly within an allowable range and solve the problem of fabric hanging through the structural design of a limit support piece.

[0006] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a roller structure of a computer flat knitting machine, comprising a rotating shaft, a driven shaft and a bracket assembly arranged between the rotating shaft and the driven shaft, the rotating shaft, the driven shaft and the bracket assembly are outer-circuited with a roller leather cover, and also include at least one limiting support plate for supporting the rotating shaft, the limiting support plate is fixedly installed on the needle bed base of the computer flat knitting machine, the limiting support plate is arranged at the lower end of the bracket assembly, the limiting support plate is provided with a stop portion on one side of the bracket assembly corresponding to the limiting support plate, and the limiting support plate is provided with a limiting surface on the other side of the bracket assembly corresponding to the limiting support plate, the limiting surface is inclined downward from the side close to the stop portion to the side away from the stop portion, and the limiting support plate limits the rotation range of the bracket assembly through the stop portion and the limiting surface.

[0007] Furthermore, a limiting groove recessed inwardly is provided on one side of the bracket assembly corresponding to the limiting support piece, the limiting support piece is provided with a supporting portion extending into the limiting groove, and the stop portion and the limiting surface are correspondingly provided on both sides of the supporting portion.

[0008] Furthermore, the upper end surface of the support portion is in contact with the inner end surface of the limiting groove.

[0009] Furthermore, the upper end surface of the support portion is a flat surface, and the inner end surface of the limiting groove is also a flat surface.

[0010] Furthermore, a guiding portion is provided between the upper end supporting surface of the supporting portion and the limiting surface.

[0011] Furthermore, a connecting seat is connected to the other side of the position-limiting support piece relative to the supporting portion, and the position-limiting support piece is fixedly connected to the needle bed base via the connecting seat.

[0012] Furthermore, a ring is provided on the outer periphery of the rotating shaft, and the ring is provided in multiple groups. A limiting support plate is provided between adjacent rings, and a through hole adapted to the rotating shaft is provided in the middle of the limiting support plate. The number of the roller leather covers corresponds to the number of the rotating shafts.

[0013] Furthermore, the bracket assembly includes a whole section of the bracket, and the whole section of the bracket is provided with limiting grooves at positions corresponding to the limiting support pieces.

[0014] Furthermore, the bracket assembly includes a plurality of bracket units and a connecting piece connecting the bracket units, the connecting piece is correspondingly arranged at the upper end of the limiting support piece, and the limiting groove is arranged at the lower end of the connecting piece.

[0015] Furthermore, the limiting support plates of the front and rear rollers are staggered, and the lateral distance between the two is between 20mm and 1000mm.

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. The roller structure of the utility model limits the rotation range of the bracket assembly by the stopper and the limit surface of the limit support piece, so as to limit the bracket assembly within the allowable swing range, avoid the position of the bracket assembly from deviating from the ideal position, ensure that the driven shafts of the front and rear rollers are highly consistent, and the point of force for pulling the fabric is between the driven shafts of the front and rear rollers. The contact area generated by the two roller leather covers when rotating towards each other is consistent at any position of the roller mechanism, thereby ensuring uniform pulling force on the fabric and ensuring the weaving quality of the fabric;

[0018] 2. In the roller structure of the utility model, a limiting surface is set on the inner side of the limiting support plate corresponding to the two groups of rollers, and the limiting surface is designed to be inclined downward from the side close to the stop portion to the side away from the stop portion, thereby ensuring that the fabric can be unloaded smoothly when the front and rear rollers are opened, solving the problem of the existing limiting support plate hanging the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the position structure of the bracket assembly of the utility model.

[0021] Figure 3 It is a partial schematic diagram of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the utility model when the front and rear rollers are closed.

[0023] Figure 5 It is a structural schematic diagram of the utility model when the front and rear rollers are opened.

[0024] Figure 6 It is a structural schematic diagram of the bracket assembly of the utility model.

[0025] In the figure: 10, rotating shaft; 11, collar; 20, driven shaft; 30, bracket assembly; 31, limiting groove; 40, roller leather cover; 50, limiting support plate; 51, stopper; 52, limiting surface; 53, supporting part; 54, guiding part; 55, connecting seat; 56, air avoidance groove. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1-6 As shown, a roller structure of a computer flat knitting machine includes a rotating shaft 10, a driven shaft 20 and a support assembly 30 arranged between the rotating shaft 10 and the driven shaft 20, wherein the rotating shaft 10, the driven shaft 20 and the support assembly 30 are provided with a roller leather cover 40, and the front and rear rollers work together to wind and pull the fabric therebetween. Specifically, the upper end of the support assembly 30 is provided with a V-shaped groove or a trapezoidal groove for partially accommodating the driven shaft 20, and the lower end of the support assembly is provided with an arc groove matching the outer circumferential surface of the rotating shaft 10.

[0028] The roller structure of the utility model also includes at least one limiting support plate 50 for supporting the rotating shaft 10, and the limiting support plate 50 is fixedly installed on the needle bed base of the computer flat knitting machine, and the limiting support plate 50 is arranged at the lower end of the bracket assembly 30, and a stop portion 51 is arranged on one side of the limiting support plate 50 corresponding to the bracket assembly 30, and a limiting surface 52 is arranged on the other side of the limiting support plate 50 corresponding to the bracket assembly 30, and the limiting surface 52 is inclined downward from the side close to the stop portion 51 to the side away from the stop portion 51. The limiting support plate 50 limits the rotation range of the bracket assembly 30 through the stop portion 51 and the limiting surface 52. Specifically, the movable space between the stop portion 51 and the limiting surface 52 is larger than the size of the bottom of the bracket, so that the bracket assembly 30 can have a certain swinging space between the stop portion 51 and the limiting surface 52, thereby coordinating the closing and opening between the front and rear rollers.

[0029] The roller structure of the utility model limits the rotation range of the support assembly 30 by the stopper 51 and the limit surface 52 of the limit support sheet 50, so as to limit the support assembly 30 within the allowable swing range, avoid the position of the support assembly 30 from deviating from the ideal position, ensure that the driven shafts 20 of the front and rear rollers are in the same height, and the point of force for pulling the fabric is between the driven shafts 20 of the front and rear rollers. The contact area generated by the two roller leather covers 40 when rotating towards each other is consistent at any position of the roller mechanism, thereby ensuring that the pulling force on the fabric is uniform and the weaving quality of the fabric is ensured;

[0030] In addition, in the roller structure of the utility model, a limiting surface 52 is set on the inner side of the limiting support plate 50 corresponding to the two groups of rollers, and the limiting surface 52 is designed to be inclined downward from the side close to the stop portion 51 to the side away from the stop portion 51, thereby ensuring that the fabric can be unloaded smoothly when the front and rear rollers are opened, solving the problem of the existing limiting support plate 50 hanging the fabric.

[0031] In some embodiments, a limiting groove 31 recessed inwardly is provided on one side of the bracket assembly 30 corresponding to the limiting support piece 50, and the limiting support piece 50 is provided with a supporting portion 53 extending into the limiting groove 31, and the width of the limiting groove 31 is greater than or equal to the thickness of the limiting support piece 50, and the stop portion 51 and the limiting surface 52 are correspondingly arranged on both sides of the supporting portion 53, and further, the upper end surface of the supporting portion 53 is attached to the inner end surface of the limiting groove 31, so that the supporting portion 53 supports the bracket assembly 30.

[0032] In some embodiments, the upper end surface of the support portion 53 is a flat surface, and the inner end surface of the limiting groove 31 is also a flat surface. Through this arrangement, the components are further limited to prevent them from swinging excessively toward the side of the stop portion 51. A guide portion 54 is provided between the upper end support surface of the support portion 53 and the limiting surface 52 to facilitate the bracket assembly 30 to swing from the support portion 53 to the limiting surface 52.

[0033] Furthermore, the other side of the limiting support piece 50 relative to the support portion 53 is connected to a connecting seat 55, and the limiting support piece 50 is fixedly connected to the needle bed base through the connecting seat 55, that is, the limiting support piece 50 is kept in a fixed state.

[0034] In some embodiments, a ring 11 is provided on the outer periphery of the rotating shaft 10, and the ring 11 is provided in multiple groups. A limiting support plate 50 is provided between adjacent rings 11, and a through hole adapted to the rotating shaft 10 is provided in the middle of the limiting support plate 50, and the number of the roller leather covers 40 corresponds to the number of the rotating shafts 10.

[0035] In some embodiments, the bracket assembly 30 includes a whole bracket section, and the whole bracket section is provided with limiting grooves 31 corresponding to the positions of the limiting support plates 50. In this embodiment, the bracket is a whole-section structure to facilitate its assembly, which greatly reduces the assembly time of employees.

[0036] In some embodiments, the bracket assembly 30 includes multiple bracket units and connecting parts connecting the bracket units. The connecting parts are correspondingly arranged at the upper end of the limiting support plate 50, and the limiting groove 31 is arranged at the lower end of the connecting parts. In this embodiment, the bracket assembly 30 is designed to be a structure of several units to facilitate its processing.

[0037] In some embodiments, the limiting support plate 50 is provided with a clearance groove 56, and the clearance groove 56 is arranged on the other side of the stop portion 51 relative to the support portion 53. Through the above arrangement, the weight of the limiting support plate 50 is greatly reduced and the material cost is greatly saved.

[0038] In some embodiments, the limiting support plates 50 of the front and rear rollers are staggered. Specifically, the lateral distance between the limiting support plates 50 of the front and rear rollers is between 20mm and 1000mm. By staggering, the fabric can be ensured to be more uniform.

[0039] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A roller structure of a computerized flat knitting machine, comprising a rotating shaft (10), a driven shaft (20), and a bracket assembly (30) arranged between the rotating shaft (10) and the driven shaft (20), wherein the rotating shaft (10), the driven shaft (20), and the bracket assembly (30) are covered with a roller leather cover (40), characterized in that: The invention also comprises at least one limiting support plate (50) for supporting the rotating shaft (10), wherein the limiting support plate (50) is fixedly mounted on the needle bed base of the computer flat knitting machine, and the limiting support plate (50) is arranged at the lower end of the bracket assembly (30), and a stop portion (51) is arranged on one side of the limiting support plate (50) corresponding to the bracket assembly (30), and a limiting surface (52) is arranged on the other side of the limiting support plate (50) corresponding to the bracket assembly (30), and the limiting surface (52) is inclined downward from a side close to the stop portion (51) to a side away from the stop portion (51), and the limiting support plate (50) limits the rotation range of the bracket assembly (30) through the stop portion (51) and the limiting surface (52).

2. The roller structure of a computerized flat knitting machine according to claim 1, characterized in that: The bracket assembly (30) is provided with an inwardly recessed limiting groove (31) on one side corresponding to the limiting support piece (50); the limiting support piece (50) is provided with a supporting portion (53) extending into the limiting groove (31); and the stop portion (51) and the limiting surface (52) are correspondingly arranged on both sides of the supporting portion (53).

3. The roller structure of a computerized flat knitting machine according to claim 2, characterized in that: The upper end surface of the support portion (53) is in contact with the inner end surface of the limiting groove (31).

4. The roller structure of a computerized flat knitting machine according to claim 3, characterized in that: The upper end surface of the support portion (53) is a flat surface, and the inner end surface of the limiting groove (31) is also a flat surface.

5. The roller structure of a computerized flat knitting machine according to claim 4, characterized in that: A guide portion (54) is provided between the upper end support surface of the support portion (53) and the limiting surface (52).

6. The roller structure of a computerized flat knitting machine according to claim 3, characterized in that: The other side of the position-limiting support piece (50) relative to the support portion (53) is connected to a connecting seat (55), and the position-limiting support piece (50) is fixedly connected to the needle bed base via the connecting seat (55).

7. The roller structure of a computerized flat knitting machine according to claim 1, characterized in that: A collar (11) is provided on the outer periphery of the rotating shaft (10), and the collar (11) is provided in multiple groups. A limiting support sheet (50) is provided between adjacent collars (11), and a through hole adapted to the rotating shaft (10) is provided in the middle of the limiting support sheet (50). The number of the roller leather covers (40) corresponds to the number of the rotating shafts (10).

8. The roller structure of a computerized flat knitting machine according to claim 2, characterized in that: The bracket assembly (30) comprises a whole bracket section, and the whole bracket section is provided with limiting grooves (31) at positions corresponding to the limiting support pieces (50).

9. The roller structure of a computerized flat knitting machine according to claim 2, characterized in that: The bracket assembly (30) comprises a plurality of bracket units and a connecting piece connecting the bracket units, wherein the connecting piece is correspondingly arranged at the upper end of the limiting support sheet (50), and the limiting groove (31) is arranged at the lower end of the connecting piece.

10. The roller structure of a computerized flat knitting machine according to claim 1, characterized in that: The limiting support plates (50) of the front and rear rollers are staggered, and the lateral distance between the two is between 20 mm and 1000 mm.

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