Lower needle cylinder transmission structure of double-sided circular knitting machine

Abstract

The utility model belongs to the technical field of circular knitting machines, and particularly relates to a lower needle cylinder transmission structure of a double-sided circular knitting machine, which comprises a first synchronous pulley, one end of the first synchronous pulley is connected with a driving motor through a rotating shaft, and the other end of the first synchronous pulley is connected with a second synchronous pulley. A lower needle cylinder is mounted on the second synchronous pulley; a protection part is arranged between the first synchronous belt wheel and the driving motor, a motor frame is installed outside the driving motor, the protection part comprises connecting rods connected with a shell of the first synchronous belt wheel, and the connecting rods are annularly distributed with the rotating shaft as the center axis. Compared with the prior art, the rotating shaft can be protected, a small amount of eccentric force which does not wind the shaft and is generated in the rotating process of the rotating shaft can be dispersed to the protection piece through the bearing, and the rotating shaft, the driving motor and the first synchronous belt wheel are prevented from being damaged and protected.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting machine technology, specifically to a lower needle cylinder transmission structure for a double-sided circular knitting machine. Background Technology

[0002] The circular knitting machine, also known as a circular weft knitting machine, mainly consists of a frame, yarn feeding mechanism, transmission mechanism, lubrication and dust removal mechanism, electrical control mechanism, traction and take-up mechanism, and other auxiliary devices. Circular knitting machines can be divided into two main categories: single-sided and double-sided. Due to its multiple loop-forming systems, high speed, high output, fast pattern changes, good fabric quality, fewer processes, and strong product adaptability, the circular knitting machine has developed rapidly. Usually, a take-up device is installed at the bottom of the circular knitting machine.

[0003] This utility model discusses the lower needle cylinder drive structure of a double-sided circular knitting machine. In the prior art, the structure includes three support legs 91 arranged in an equilateral triangle. (Refer to...) Figure 1 , Figure 2 In the structure of the device, a longitudinal drive motor 2 is mounted on one of the support feet 91. The drive motor 2 is connected to the first synchronous pulley 1 via a rotating shaft 6, and then to the second synchronous pulley 3 located inside the three support feet 91 via the first synchronous pulley 1. A bearing 92 is mounted on the second synchronous pulley 3, and a lower needle cylinder 4 is mounted on the bearing 92. Thus, the lower needle cylinder 4 rotates through the first synchronous pulley 1, the second synchronous pulley 3, and the bearing 92. For example, the utility model patent discloses a transmission mechanism for a circular knitting machine, with the authorization announcement number CN208293197U.

[0004] The problem with this syringe transmission structure is that the shaft 6 between the first synchronous pulley 1 and the drive motor 2 lacks a protective structure. On the one hand, the shaft 6 is exposed and may come into contact with external objects, causing damage. On the other hand, during the rotation of the shaft 6, due to the tolerances of the shaft 6 itself or the workpiece, a slight eccentric force will always be generated. This eccentric force does not rotate completely around the axis. That is, the slight force is transmitted to the bearing, and then to the drive motor 2 and the first synchronous pulley 1 through the bearing, thereby damaging the above components and causing economic losses. Utility Model Content

[0005] In view of the problems existing in the lower needle cylinder drive structure of the above and / or existing double-sided circular knitting machine, this utility model is proposed, which can solve the problems mentioned above.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A lower needle cylinder transmission structure for a double-sided circular knitting machine includes a first synchronous pulley, one end of which is connected to a drive motor via a rotating shaft, and the other end of which is connected to a second synchronous pulley. A lower needle cylinder is mounted on the second synchronous pulley. A protective component is provided between the first synchronous pulley and the drive motor. A motor frame is mounted outside the drive motor. The protective component includes a connecting rod connected to the housing of the first synchronous pulley, and the connecting rod is arranged in a ring around the rotating shaft as the central axis.

[0008] The protective component includes a lower fixing plate, which is fixedly connected to the top of the motor frame. The lower fixing plate has a first through hole for the rotating shaft to pass through and a first blind hole that is evenly distributed in a ring around the first through hole.

[0009] The protective component includes an upper fixed plate, which is fixedly connected to a second synchronous pulley. The upper fixed plate has a second through hole for the rotating shaft to pass through and a second blind hole that is evenly distributed in a ring around the second through hole.

[0010] The inner walls of the first blind hole and the second blind hole have at least one plane.

[0011] The protective component has at least two connecting rods evenly distributed between the upper and lower fixed plates, and the two or more connecting rods are correspondingly arranged through the first blind hole and the second blind hole.

[0012] Two or more of the aforementioned connecting rods are provided with annular connecting rods.

[0013] It includes three support legs arranged in an equilateral triangle, with a longitudinal drive motor mounted on one of the support legs.

[0014] The protective component includes a motor frame externally mounted to the drive motor, and the motor frame is fixedly connected to the inner wall of a support foot using wing plates, side plates, etc.

[0015] Compared with existing technologies:

[0016] This invention can protect the rotating shaft by dispersing the small amount of non-axis-oriented eccentric force generated during the rotation of the shaft to the protective component through the bearing, thereby preventing damage to the rotating shaft, drive motor and first synchronous pulley. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A magnified structural diagram of A in the middle;

[0019] Figure 3 This is a front view of an embodiment with six links;

[0020] Figure 4 This is a top view of an embodiment with 6 connecting rods;

[0021] Figure 5 A front view of an embodiment where six connecting rods are connected to a ring-shaped connecting rod;

[0022] Figure 6 A front view of an embodiment where six connecting rods are connected to two annular connecting rods;

[0023] Figure 7 A top view of an embodiment where six connecting rods are connected to a single annular connecting rod;

[0024] Figure 8 A top view of an embodiment where six connecting rods, annular connecting rods, and a lower fixed plate are connected;

[0025] Figure 9 This is a front view of an embodiment of a cylindrical protective component. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix. Figures 1-9 The embodiments of this utility model will be described in further detail.

[0027] This utility model provides a lower needle cylinder transmission structure for a double-sided circular knitting machine. According to one embodiment, it includes three support feet 91 arranged in an equilateral triangle. A longitudinal drive motor 2 is mounted on one support foot 91. The drive motor 2 is connected to a first synchronous pulley 1 via a rotating shaft 6. The first synchronous pulley 1 is then connected laterally to a second synchronous pulley 3 located inside the three support feet 91. A bearing 92 is mounted on the second synchronous pulley 3. A lower needle cylinder 4 is mounted on the bearing 92. Thus, the lower needle cylinder 4 rotates via the first synchronous pulley 1, the second synchronous pulley 3, and the bearing 92.

[0028] In the prior art, there is no structure to protect the shaft 6, drive motor 2, and first synchronous pulley 1 between drive motor 2 and first synchronous pulley 1. However, in this embodiment, a protective component 5 is provided for protection. The protective component 5 includes a motor frame 21 mounted on the outside of drive motor 2. The motor frame 21 is fixedly connected to the inner wall of a support foot 91 by means of wing plate 93, side plate 94, etc., so that drive motor 2 is stable on a support foot 91. The support foot 91 is fixed to the ground or other fixed parts.

[0029] Furthermore, a protective component 5 is provided between the first synchronous pulley 1 and the drive motor 2. A motor frame 21 is installed outside the drive motor 2. The protective component 5 includes a connecting rod 54 connected to the housing of the first synchronous pulley 1. The connecting rod 54 is arranged in a ring around the rotating shaft 6 as the central axis.

[0030] Specifically, a protective component 5 is connected between the top plate 211 at the top of the motor frame 21 and the bottom plate 111 of the housing 11 of the first synchronous pulley 1. The protective component 5 includes a lower fixed plate 52 installed on the top plate 211 and an upper fixed plate 53 installed on the bottom plate 111. The lower fixed plate 52 and the upper fixed plate 53 are longitudinally parallel to each other, and a connecting rod 54 is connected to the protective component 5. On the one hand, it can protect the rotating shaft 6, and on the other hand, it can disperse the small amount of eccentric force generated by the rotating shaft 6 during rotation to the protective component 5 through the bearing, thus preventing damage to the rotating shaft 6, the drive motor 2 and the first synchronous pulley 1.

[0031] Furthermore, the lower fixed plate 52 has a first through hole 521 for the rotating shaft 6 to pass through and a first blind hole 522 that is evenly distributed in a ring around the first through hole 521.

[0032] Furthermore, the upper fixed plate 53 is fixedly connected to the second synchronous pulley 3, and the upper fixed plate 53 has a second through hole 523 for the rotating shaft 6 to pass through and a second blind hole 524 evenly distributed in a ring around the second through hole 523.

[0033] Furthermore, the inner walls of the first blind hole 522 and the second blind hole 524 have at least one plane.

[0034] Furthermore, the protective component 5 has at least two connecting rods 54 evenly distributed between the upper fixed plate 53 and the lower fixed plate 52. The two or more connecting rods 54 are correspondingly arranged through the first blind hole 522 and the second blind hole 524, and the connecting rods 54 are fixed by pins.

[0035] Furthermore, two or more of the connecting rods 54 are provided with annular connecting rods 55. This protective structure can protect the rotating shaft 6 on the one hand, and on the other hand, it can disperse the small amount of non-axial eccentric force generated during the rotation of the rotating shaft 6 to the protective component 5 through the bearing, so as to prevent damage to the rotating shaft 6, the drive motor 2 and the first synchronous pulley 1.

[0036] In the connecting rod 54 structure, the number can be more than 2, such as 3, 4, 5, 6, 7, 8, etc., and the position is set in a way that they are evenly distributed around the central axis of the rotating shaft 6; the number of annular connecting rods 55 can be more than 1, such as 1, 2, 3, etc., and the position is set in a way that they are evenly distributed around the central axis of the rotating shaft 6.

[0037] refer to Figure 9 The connecting rod 54 can be configured as a hollow cylindrical structure, with connecting parts at both ends that connect to the upper fixed plate 53 and the lower fixed plate 52, respectively.

[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A lower needle cylinder transmission structure for a double-sided circular knitting machine, comprising a first synchronous pulley, one end of which is connected to a drive motor via a rotating shaft, and the other end of which is connected to a second synchronous pulley, wherein a lower needle cylinder is mounted on the second synchronous pulley; characterized in that: A protective component is provided between the first synchronous pulley and the drive motor. A motor frame is installed outside the drive motor. The protective component includes a connecting rod connected to the housing of the first synchronous pulley. The connecting rod is distributed in a ring around the rotating shaft as the central axis.

2. The lower needle cylinder drive structure of a double-sided circular knitting machine according to claim 1, characterized in that: The protective component includes a lower fixing plate, which is fixedly connected to the top of the motor frame. The lower fixing plate has a first through hole for the rotating shaft to pass through and a first blind hole that is evenly distributed in a ring around the first through hole.

3. The lower needle cylinder drive structure of a double-sided circular knitting machine according to claim 2, characterized in that: The protective component includes an upper fixed plate, which is fixedly connected to a second synchronous pulley. The upper fixed plate has a second through hole for the rotating shaft to pass through and a second blind hole that is evenly distributed in a ring around the second through hole.

4. The lower needle cylinder drive structure of a double-sided circular knitting machine according to claim 3, characterized in that: The inner walls of the first blind hole and the second blind hole have at least one plane.

5. The lower needle cylinder drive structure of a double-sided circular knitting machine according to claim 4, characterized in that: The protective component has at least two connecting rods evenly distributed between the upper and lower fixed plates, and the two or more connecting rods are correspondingly arranged through the first blind hole and the second blind hole.

6. The lower needle cylinder drive structure of a double-sided circular knitting machine according to claim 4, characterized in that: Two or more of the aforementioned connecting rods are provided with annular connecting rods.

7. The lower needle cylinder drive structure of a double-sided circular knitting machine according to claim 1, characterized in that: It includes three support legs arranged in an equilateral triangle, with a longitudinal drive motor mounted on one of the support legs.

8. The lower needle cylinder drive structure of a double-sided circular knitting machine according to claim 7, characterized in that: The protective component includes a motor frame externally mounted to the drive motor, wherein the motor frame is fixedly connected to the inner wall of a support foot by means of a wing plate, a side plate, and a support foot.

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