AU2020102389A4

AU2020102389A4 - Shaftless unwinding mandrel replacement mechanism

Info

Publication number: AU2020102389A4
Application number: AU2020102389A
Authority: AU
Inventors: Gavin Wang
Original assignee: SUZHOU ACME MACHINERY CO Ltd
Current assignee: SUZHOU ACME MACHINERY Co Ltd
Priority date: 2019-12-20
Filing date: 2020-06-18
Publication date: 2020-11-05
Anticipated expiration: 2028-06-18
Also published as: WO2021120556A1; CN211444572U

Abstract

Ab s tr ac t o f th e Dis clo s ur e The present utility model relates to a shaftless unwinding mandrel replacement mechanism which comprises an air cylinder assembly, wherein the fixed end of the air cylinder in the air cylinder assembly is fixed on the bearing seat, the telescopic end of the air cylinder is fixed with a first inflation chuck, a 5 second inflation chuck symmetrically arranged with the first inflation chuck is further included, the end of the second inflation chuck away from the first inflation chuck is fixedly connected to the movable end of the magnetic powder brake, and the outer sleeve of the first inflation chuck and/or the second inflation chuck is fixed with a snap ring for clamping the mandrel; with the shaftless unwinding o mandrel replacement mechanism provided by the present utility model, the mandrel can be replaced without a mandrel, and the old and new base materials can be exchanged easily, which ensures the reference side of the base material, saves time, and improves work efficiency. (Fig.1)

Description

Ab s tr ac t o f th e Dis clo s ur e

The present utility model relates to a shaftless unwinding mandrel

replacement mechanism which comprises an air cylinder assembly, wherein the

fixed end of the air cylinder in the air cylinder assembly is fixed on the bearing

seat, the telescopic end of the air cylinder is fixed with a first inflation chuck, a

second inflation chuck symmetrically arranged with the first inflation chuck is

further included, the end of the second inflation chuck away from the first inflation

chuck is fixedly connected to the movable end of the magnetic powder brake, and

the outer sleeve of the first inflation chuck and/or the second inflation chuck is

fixed with a snap ring for clamping the mandrel; with the shaftless unwinding

o mandrel replacement mechanism provided by the present utility model, the

mandrel can be replaced without a mandrel, and the old and new base materials

can be exchanged easily, which ensures the reference side of the base material,

saves time, and improves work efficiency.

(Fig.1)

S P E C I F I C A T IO N SHAFTLESS UNWINDING MANDREL REPLACEMENT MECHANISM BACKGROUND OF THE INVENTION

1. Technical Field The present utility model relates to the field of material production, and more specifically, to a shaftless unwinding mandrel replacement mechanism.

2. Background of Related Art In the process of equipment rewinding and slitting, sometimes it is required to change raw materials. For batch operation, due to different specifications and o lengths of the mandrels, each time raw materials are loaded and unloaded, the discharge shaft must be moved to the left and right to re-align the edge. In case of misalignment, both material and time are wasted and work efficiency becomes low. In view of the defects above, the designer, through active research and innovation expects to create a material changing mechanism capable of changing mandrels in a shaftless manner, which can ensure the reference edge of base material, save time, improve work efficiency, and also have industrial utilization value.

DESCRIPTION OF THE UTILITY MODEL To solve the aforesaid technical problems, the present utility model aims at providing a shaftless unwinding mandrel replacement mechanism with which mandrels can be changed by moving an inflation chuck leftwards and rightwards, in this way the operation is convenient, manpower is saved and work efficiency becomes high. The shaftless unwinding mandrel replacement mechanism according to the present utility model comprises an air cylinder assembly, wherein the fixed end of the air cylinder in the air cylinder assembly is fixed on the bearing seat, the

S P E C I F I C A T IO N

telescopic end of the air cylinder is fixed with a first inflation chuck, a second inflation chuck symmetrically arranged with the first inflation chuck is further included, the end of the second inflation chuck away from the first inflation chuck is fixedly connected to the movable end of the magnetic powder brake, and the outer sleeve of the first inflation chuck and/or the second inflation chuck is fixed with a snap ring for clamping the mandrel. Further, the snap ring is detachably sleeved and fixed on the first inflation chuck and/or the second inflation chuck. Furthermore, the snap ring includes a first semi-circular ring and a second o semi-circular ring, the first semi-circular ring is hinged with one end of the second semi-circular ring, and the first semi-circular ring is connected with the other end of the second semi-circular ring by snap. Further, a cushion pad is placed on the inner wall of the snap ring. Furthermore, the cushion pad is made of rubber. By virtue of the solution above, the present utility model has at least the following advantages: the changing of mandrels of base material is realized without the discharge shaft, which can ensure the reference edge of base material, save manpower and improve work efficiency. The description is only a general introduction of the technical solution of the present utility model. To better understand the technical means of the present utility model and make it executable in accordance with the Specification, the present utility model is detailed hereinafter by means of preferred embodiments in conjunction with drawings attached. Brief Description of the Drawings FIG. 1 is a front view of the shaftless unwinding mandrel replacement mechanism according to the present utility model; FIG. 2 is a front view of the shaftless unwinding mandrel replacement

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mechanism in FIG. 1 in the process of mandrel changing; FIG. 3 is a front view of the shaftless unwinding mandrel replacement mechanism in FIG. 1 in the process of base material changing. 1 Air cylinder 2 Bearing seat 3 First inflation chuck 4 Second inflation chuck

5 Magnetic powder 6 Mandrel brake 7 Snap ring 8 Base material

DETAILED DESCRIPTION OF THE UTILITY MODEL The embodiments of the present utility model are further detailed in combination with the drawings and embodiments as follows. The embodiments below are used to illustrate the present utility model rather than limit the scope of the present utility model. o FIGs 1-3 show a shaftless unwinding mandrel replacement mechanism which comprises an air cylinder assembly, wherein the fixed end of the air cylinder 1 in the air cylinder assembly is fixed on the bearing seat 2, the telescopic end of the air cylinder 1 is fixed with a first inflation chuck 3, a second inflation chuck 4 symmetrically arranged with the first inflation chuck 3 is further included, the end of the second inflation chuck 4 away from the first inflation chuck 3 is fixedly connected to the movable end of the magnetic powder brake 5, and the outer sleeve of the first inflation chuck 3 and/or the second inflation chuck 4 is fixed with a snap ring 7 for clamping the mandrel 6. The operating process of the shaftless unwinding mandrel replacement mechanism provided by the present utility model is as follows. 1. The base material 8 in raw materials is subject to batch operation, wherein base material 8 is sleeved outside the mandrel 6;

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2. During material loading, unloading and changing, the air cylinder 1 drives the first inflation chuck 3 backwards, and unloading will begin when the distance between the first inflation chuck 3 and the second inflation chuck 4 is greater than the length of the mandrel 6; 3. After removing the mandrel 6 of the base material 8 from raw materials, replace it with a new roll of base material 8; 4. The air cylinder 1 drives the first inflation chuck 3 forwards to get close to the second inflation chuck 4, wherein the first inflation chuck 3 is inserted into the mandrel 6, a fixed snap ring 7 is sleeved outside the first inflation chuck 3 and/or o the second inflation chuck 4 to bear against the mandrel 6, at least one of the first inflation chuck 3 or the second inflation chuck 4 is sleeved and fixed with a buckle, this can ensure the reference edge of base material 8 , the first inflation chuck 3 and the second inflation chuck 4 are inflated, and after the loading process is completed, the equipment operates normally. In this embodiment, in order to easily disassemble the snap ring 7, it is moved on the first inflation chuck 3 or the second inflation chuck 4 to limit the positions of the mandrels 6 of different sizes, and the snap ring 7 is detachably sleeved on the first inflation chuck 3 and/or the second inflation chuck 4. In this embodiment, in order to easily disassemble the snap ring 7, the snap ring 7 includes a first semi-circular ring and a second semi-circular ring, the first semi-circular ring is hinged with one end of the second semi-circular ring, and the first semi-circular ring is connected with the other end of the second semi-circular ring by snap. In this embodiment, in order to prevent damage to the first inflation chuck 3 or the second inflation chuck 4, a cushion pad which is made of rubber is placed on the inner wall of the snap ring 7. The above is just the preferred embodiments of the present utility model and does not constitute limitation to the present utility model. It should be noted that

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those skilled in this art may make some changes or modifications without departure from the technical principle of the present utility model and these changes and modifications shall be considered to fall in the protection scope of the present utility model.

Claims

1. A shaftless unwinding mandrel replacement mechanism, characterized in that it comprises an air cylinder assembly, wherein the fixed end of the air cylinder in the air cylinder assembly is fixed on the bearing seat, the telescopic end of the air cylinder is fixed with a first inflation chuck, a second inflation chuck symmetrically arranged with the first inflation chuck is further included, the end of the second inflation chuck away from the first inflation chuck is fixedly connected to the movable end of the magnetic powder brake, and the outer sleeve of the first inflation chuck and/or the second inflation chuck is fixed with a snap ring for clamping the mandrel.

2. The shaftless unwinding mandrel replacement mechanism according to Claim 1, characterized in that the snap ring is detachably sleeved and fixed on the first inflation chuck and/or the second inflation chuck.

3. The shaftless unwinding mandrel replacement mechanism according to Claim 2, characterized in that the snap ring includes a first semi-circular ring and a second semi-circular ring, the first semi-circular ring is hinged with one end of the second semi-circular ring, and the first semi-circular ring is connected with the other end of the second semi circular ring by snap.

4. The shaftless unwinding mandrel replacement mechanism according to Claim 1, characterized in that a cushion pad is placed on the inner wall of the snap ring.

5. The shaftless unwinding mandrel replacement mechanism according to Claim 4, characterized in that the cushion pad is made of rubber.

D r a w i n g s o f t h e S p e c i f i c a t i o n 18 Jun 2020

1 2 3 6 8 7 5

7 4 2020102389

FIG. 1

6

FIG. 2

8

6

FIG. 3

1/1