CN218910716U

CN218910716U - Belt expanding device

Info

Publication number: CN218910716U
Application number: CN202223280279.2U
Authority: CN
Inventors: 景凤亮; 周斌
Original assignee: Shaoxing Jietai Electromechanical Co ltd
Current assignee: Shaoxing Jietai Electromechanical Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-04-25
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses a band expanding device, which comprises a base, wherein a shaft is arranged on the base, a plurality of band expanding wheels are sleeved on the shaft along the axial direction, and the band expanding wheels can rotate around the axial line; the two axial ends of the expanding pulley are respectively provided with a gasket, and the gaskets are used for axially fixing the expanding pulley. The belt expanding device has the characteristic of ensuring smooth operation of the belt.

Description

Belt expanding device

Technical Field

The utility model relates to the field of textile machinery flat knitting machines, in particular to a belt expanding device.

Background

In the flat knitting machine equipment, a yarn nozzle transmission system of the computerized flat knitting machine is arranged above a needle bed, the yarn nozzle transmission system of the computerized flat knitting machine finishes the work of feeding various yarns into a lower needle bed, and the needle bed is used for yarn knitting.

A yarn nozzle transmission system of a computerized flat knitting machine with the patent number of CN2021205528866, as shown in figure 1,

comprising a guide rail 1', a yarn nozzle assembly 2', a motor 3 'and a belt 4'; the yarn nozzle assembly 2' is arranged on the guide rail 1', and the yarn nozzle assembly 2' is in linkage connection with the motor 3' through a belt 4'; the motor 3 'is arranged at one end of the guide rail 1', two ends of the guide rail 1 'are respectively provided with a rotating wheel 15', the belt 4 'is sleeved on the two rotating wheels 15', and the motor 3 'is connected with one rotating wheel 15'; when in operation, the motor 3 'drives the yarn nozzle assembly 2' to reciprocate on the guide rail 1.

As shown in fig. 2 and 3, the assembled belt 4 'is in a closed ring shape, the ring belt 4' is arranged around the guide rail 1', if the diameter of the belt pulley 15' is too small, the distance between two sides of the ring belt 4 'is too small, and the phenomenon that the single-side belt 41' is close to the guide rail 1 'causes friction between the single-side belt 41' and the guide rail 1', so that the belt 4' does not operate smoothly is caused.

And because the yarn mouth transmission system of a plurality of groups of brain flat knitting machines are arranged on one flat knitting machine side by side, the diameter of the belt pulley 15' cannot be excessively large.

In view of the above, the present utility model provides a band expanding device.

Disclosure of Invention

The utility model provides a belt expanding device, which has the characteristic of ensuring smooth operation of a belt; specifically, the utility model is realized by the following technical scheme:

a belt expanding device comprises a base, wherein a shaft is arranged on the base, a plurality of belt expanding wheels are sleeved on the shaft along the axial direction, and the belt expanding wheels can rotate around the axis; the two axial ends of the expanding pulley are respectively provided with a gasket, and the gaskets are used for axially fixing the expanding pulley.

When the belt expanding device is used, the belt expanding device is arranged between the two single-side belts, and the positions of the belt expanding device are adjusted so that the two belt expanding wheels are respectively clung to the two single-side belts; the original moving track of the single-side belt is a straight line, and after the expanding pulley is installed, the moving track of the single-side belt is an arc line. The two unilateral belts positioned at the two sides of the guide rail are respectively spread by the two spreading wheels, so that the distance between the unilateral belts and the guide rail is finally enlarged, and the situation that the belts are tightly attached to the guide rail to run is avoided.

Further, the base further comprises a baffle plate, the baffle plate is connected with the shaft, the expanding wheel is arranged between the baffle plate and the base, and the baffle plate is provided with a shaft hole for assembling the shaft.

Further, the baffle is disc-shaped.

Further, the expanding wheel is directly sleeved on the shaft; or the expanding wheel is sleeved on the bearing, and the bearing is sleeved on the shaft.

Further, the end face of the expanding pulley is outwards derivatized with a circle of retainer ring along the radial direction of the expanding pulley, and the retainer ring is connected with the peripheral surface of the expanding pulley.

The base is integrally connected with the shaft.

When the belt conveyer is used, the unilateral belt is attached to the circumferential surface of the belt expanding wheel, so that the check rings at the two ends play a role in limiting the position of the unilateral belt, and the unilateral belt is prevented from sliding out from the end part of the belt expanding wheel.

Drawings

FIG. 1 is a front view of an embodiment of a yarn nozzle transmission system of a computerized flat knitting machine of the prior art;

FIG. 2 is a top view of an embodiment of a yarn nozzle transmission system of a computerized flat knitting machine of the prior art;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a perspective view of a belt extender provided by the present utility model;

FIG. 5 is a front view of a belt extender provided by the present utility model;

FIG. 6 is an exploded view of a belt extender provided by the present utility model;

FIG. 7 is a schematic view of a belt extender provided by the present utility model mounted on a yarn mouth transmission system;

fig. 8 is a partial enlarged view of fig. 7.

Detailed Description

The utility model is further described below with reference to the drawings and the detailed description.

As shown in fig. 4, 5 and 6, the band expanding device 8 comprises a base 83, a shaft 82 is mounted on the base 83, a plurality of band expanding wheels 81 are axially positioned on the shaft 82, the fixed axial position of the band expanding wheels 81 on the shaft 82 can be ensured, the band expanding wheels 81 are prevented from axially moving, the band expanding wheels 81 can bear axial force, and meanwhile, the band expanding wheels 81 can rotate around the axis of the shaft 82. The base 83 is integrally connected with the shaft 82.

A specific embodiment of axially fixing the expansion pulley 81 and the shaft 82 is as follows:

and gaskets 84 are respectively arranged at the two axial ends of the expansion pulleys 81, so that the two adjacent expansion pulleys 81 are separated by the gaskets 84, the gaskets 84 are sleeved on the shaft 82, the gaskets 84 play a role in axial fixation, and meanwhile, the operation independence of the adjacent expansion pulleys 81 is ensured.

The band expanding device 8 further comprises a baffle 85, the baffle 85 is disc-shaped, a shaft hole is formed in the baffle 85 and used for assembling the shaft 82, the baffle 85 is connected with the shaft 82, the band expanding wheel 81 is located between the baffle 85 and the base 83, the baffle 85 and the base 83 axially fix the band expanding wheel 81, and the band expanding wheel 81 is prevented from being separated from the shaft 82 during operation.

The above-mentioned expansion pulley 81 and the shaft 82 may be directly sleeved, or the expansion pulley 81 may be sleeved on a bearing, and the bearing is sleeved on the shaft 82 to complete the assembly.

As shown in fig. 6, at both end surfaces of the pulley 81, a ring of collars 811 are respectively and outwardly derived in the radial direction of the pulley, and the collars are connected to the peripheral surface 812 of the pulley 81, and when the one-sided belt 41' is attached to the peripheral surface 812 of the pulley 81 in use, the collars 811 at both ends function to restrict the position of the one-sided belt 41' and prevent the one-sided belt 41' from slipping out from the end of the pulley 81.

As shown in fig. 7 and 8, in use, the belt expanding device 8 is installed in the annular belt 4' between the two single-side belts 41', so that the belt expanding wheel 81 is respectively clung to the belts 41' on the two sides; as shown in fig. 2, the original single-sided belt 41 'has a straight line running path, and after the expanding pulley 81 is installed, as shown in fig. 7, the single-sided belt 41' has an arc running path. The two single-sided belts 41' at both sides of the guide rail 2 are respectively spread by the two spread pulleys 81.

The foregoing is a preferred embodiment of the present utility model, and several other simple substitutions and modifications made under the circumstances of the inventive concept should be considered as falling within the scope of the present utility model.

Claims

1. A belt spreading device, characterized in that: the device comprises a base, wherein a shaft is arranged on the base, a plurality of expanding pulleys are sleeved on the shaft along the axial direction, and the expanding pulleys can rotate around the axis; the two axial ends of the expanding pulley are respectively provided with a gasket, and the gaskets are used for axially fixing the expanding pulley.

2. A spreading device according to claim 1, wherein: the base also comprises a baffle plate, the baffle plate is connected with the shaft, the expanding pulley is positioned between the baffle plate and the base, and the baffle plate is provided with a shaft hole for assembling the shaft.

3. A spreading device according to claim 2, wherein: the baffle is disc-shaped.

4. A spreading device according to claim 2, wherein: the expanding wheel is directly sleeved on the shaft; or the expanding wheel is sleeved on the bearing, and the bearing is sleeved on the shaft.

5. A spreading device according to claim 1, wherein: the end face of the expanding pulley is outwards derivatized with a circle of retainer ring along the radial direction of the expanding pulley, and the retainer ring is connected with the peripheral surface of the expanding pulley.

6. A spreading device according to claim 1, wherein: the base is integrally connected with the shaft.