CN209740311U

CN209740311U - Air expansion shaft for independent arm

Info

Publication number: CN209740311U
Application number: CN201821964189.6U
Authority: CN
Inventors: 窦保杰; 张庶
Original assignee: SUZHOU SHENGYU MATERIAL TECHNOLOGY Co Ltd
Current assignee: SUZHOU SHENGYU MATERIAL TECHNOLOGY Co Ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2019-12-06
Anticipated expiration: 2028-11-27

Abstract

The utility model belongs to the technical field of slitting machine, and relates to an inflatable shaft for an independent arm, which comprises a through-center shaft fixed on the independent arm, a support body arranged outside the through-center shaft and capable of rotating around the axis of the through-center shaft, and an inflatable piston rod capable of extending and retracting along the axial direction in the through-center shaft, wherein one side of the support body is fixed with a synchronous belt pulley, and the other side is fixed with a front cover plate; the inflatable piston rod abuts against a piston top plate packaged in the front cover plate, the piston top plate is connected with a wedge ring sleeved outside the support body, a plurality of inflatable bearing bushes are clamped between the wedge ring and the support body, and inclined surfaces matched with the shape of the wedge ring are arranged on the inflatable bearing bushes to convert the axial motion of the wedge ring into the radial motion of the wedge ring. The inflatable shaft has compact structure, realizes the fixation and the rolling of the material roll, and is very suitable for the rolling operation of narrow material strips.

Description

Air expansion shaft for independent arm

Technical Field

The utility model relates to a divide strip machine technical field, in particular to physiosis axle for independent arm.

Background

A slitting machine is a device used for slitting strip-shaped materials. In the slitting process of the lithium battery diaphragm, in order to avoid the problem that the winding is not tight due to the slight difference of the thicknesses of the rough material strips after slitting, the company designs an independent arm 1 structure, as shown in fig. 1 and 2. The independent arm 1 enables the slit fine material belts to control the tension respectively, so that each fine material belt can be ensured to be wound tightly. The independent arm 1 is wound up by means of an air shaft 2 driven by a motor 11 through a belt 12. Since the lithium battery separator is required to be thin, and the wide belt occupied by the belt 12 is eliminated, the width of the roll surface of the air spindle 2 is more limited, and how to control the tension of the air spindle 2 within the limited width is an important bottleneck for ensuring the function of the independent arm 1.

it is therefore necessary to develop an inflatable shaft to achieve this.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide an physiosis axle for independent arm can realize in the narrower space that the tension of rolling up the material is fixed.

The utility model discloses a following technical scheme realizes above-mentioned purpose: an inflatable shaft for an independent arm comprises a through-center shaft fixed on the independent arm, a supporting body arranged outside the through-center shaft and capable of rotating around the axis of the through-center shaft, and an inflatable piston rod capable of stretching and retracting along the axial direction in the through-center shaft, wherein a synchronous belt pulley is fixed on one side of the supporting body, and a front cover plate is fixed on the other side of the supporting body; the inflatable piston rod abuts against a piston top plate packaged in the front cover plate, the piston top plate is connected with a wedge ring sleeved outside the support body, a plurality of inflatable bearing bushes are clamped between the wedge ring and the support body, and inclined surfaces matched with the shape of the wedge ring are arranged on the inflatable bearing bushes to convert the axial motion of the wedge ring into the radial motion of the wedge ring.

Specifically, pins for preventing the inflatable bearing bushes from being disengaged are arranged on the inner side of the supporting body and the inner side of the front cover plate.

Furthermore, a plurality of springs are clamped between the wedge ring and the front cover plate.

Specifically, a bearing is arranged between the through-center shaft and the support body.

specifically, the inflatable piston rod is provided with a plurality of concave rings, and a sealing ring sealed between the inflatable piston rod and the through mandrel is accommodated in each concave ring.

adopt above-mentioned technical scheme, the utility model discloses technical scheme's beneficial effect is:

The inflatable shaft has compact structure, realizes the fixation and the rolling of the material roll, and is very suitable for the rolling operation of narrow material strips.

Drawings

FIG. 1 is a front view of an independent arm;

FIG. 2 is a top partial cross-sectional view of the independent arm;

FIG. 3 is a perspective view of the inflatable shaft;

Fig. 4 is a sectional view of the inflator shaft.

The figures in the drawings represent:

1-independent arm, 11-motor, 12-conveying belt;

2-inflatable shaft, 21-through mandrel, 211-bearing, 22-supporting body, 221-synchronous pulley, 222-front cover plate, 223-pin, 23-inflatable piston rod, 231-sealing ring, 24-piston top plate, 241-wedge ring, 25-inflatable bearing bush and 26-spring.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in fig. 1 to 4, an inflatable shaft 2 for an independent arm 1 of the present invention includes a through shaft 21 fixed on the independent arm 1, a support body 22 disposed outside the through shaft 21 and capable of rotating around the axis of the through shaft 21, and an inflatable piston rod 23 extending and retracting along the axial direction inside the through shaft 21, wherein a synchronous pulley 221 is fixed on one side of the support body 22, and a front cover plate 222 is fixed on the other side; the inflatable piston rod 23 supports against a piston top plate 24 which is packaged in the front cover plate 223, the piston top plate 24 is connected with a wedge ring 241 which is sleeved outside the supporting body 22, a plurality of inflatable bearing bushes 25 are clamped between the wedge ring 241 and the supporting body 22, and the inflatable bearing bushes 25 are provided with inclined surfaces which are matched with the shape of the wedge ring 241 to convert the axial movement of the wedge ring 241 into the radial movement of the inflatable piston rod. The through-mandrel 21 and the expansion piston rod 23 constitute a cylinder structure for driving the wedge ring 241 to move axially. The motor 11 rotates the synchronous pulley 221 via the transmission belt 12, and then rotates the components other than the supporting body 22 together, so as to complete the winding of the tape. The wedge ring 241 makes the inflatable bearing bush 25 perform the expansion and contraction actions under the condition of rotation, so as to complete the fixation of the material roll. The utility model discloses compact structure, and realized the fixed and rolling of material book, be applicable to very much the rolling operation in narrow material area.

As shown in fig. 3 and 4, the inner side of the support body 22 and the inner side of the front cover 222 are provided with pins 223 preventing the ballooning bush 25 from coming off. The inflatable bearing shells 25 are loosely fitted to the support body 22 and the front cover 222, the inflatable bearing shells 25 may be disengaged radially outwardly, and the pins 223 are a kind of stop to prevent the inflatable bearing shells 25 from disengaging from the entire inflatable shaft 2.

As shown in fig. 4, a plurality of springs 26 are interposed between the wedge ring 241 and the front cover 222. The spring 26 makes the wedge ring 241 have the trend of contracting inwards, so can make the physiosis axle bush 25 outwards expand, make the material roll withstand by stable cohesion, prevent that the material roll from skidding when rolling, influencing the rolling effect.

As shown in fig. 4, a bearing 211 is provided between the through-shaft 21 and the support 22. The bearing 211 minimizes the rotational friction of the support body 22 and prevents it from reacting against the driving force of the conveyor belt 12.

as shown in fig. 4, the inflatable piston rod 23 has a plurality of recessed rings (not shown) which receive a seal 231 which seals between the inflatable piston rod 23 and the through-spindle 21. The packing 231 is used to prevent air leakage when the inflatable piston rod 23 and the through-mandrel 21 move relatively.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. An inflatable shaft for a stand-alone arm, comprising: the device comprises a through mandrel fixed on an independent arm, a support body arranged outside the through mandrel and capable of rotating around the axis of the through mandrel, and an inflatable piston rod capable of stretching and retracting along the axial direction in the through mandrel, wherein a synchronous belt pulley is fixed on one side of the support body, and a front cover plate is fixed on the other side of the support body; the inflatable piston rod abuts against a piston top plate packaged in the front cover plate, the piston top plate is connected with a wedge ring sleeved outside the support body, a plurality of inflatable bearing bushes are clamped between the wedge ring and the support body, and inclined surfaces matched with the shape of the wedge ring are arranged on the inflatable bearing bushes to convert the axial motion of the wedge ring into the radial motion of the wedge ring.

2. An inflatable shaft as claimed in claim 1, wherein: and pins for preventing the inflatable bearing bushes from being disengaged are arranged on the inner sides of the supporting body and the front cover plate.

3. An inflatable shaft as claimed in claim 2, wherein: and a plurality of springs are clamped between the wedge ring and the front cover plate.

4. An inflatable shaft as claimed in claim 1, wherein: and a bearing is arranged between the through mandrel and the support body.

5. An inflatable shaft as claimed in claim 1, wherein: the inflatable piston rod is provided with a plurality of concave rings, and a sealing ring sealed between the inflatable piston rod and the through mandrel is accommodated in each concave ring.