CN219620477U

CN219620477U - Temporary clamping mechanism for roll changing and film production line

Info

Publication number: CN219620477U
Application number: CN202321376638.6U
Authority: CN
Inventors: 余鹏飞; 周才民; 陈小满; 余月霞
Original assignee: Hubei Hengchi Electronic Technology Co ltd
Current assignee: Hubei Hengchi Electronic Technology Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-09-01
Anticipated expiration: 2033-05-29

Abstract

The utility model discloses a temporary clamping mechanism for roll changing and a film production line. The clamping assembly comprises a support roller and a clamping piece, wherein the support roller is rotatably arranged on the frame, the support roller is parallel to the winding roller, the clamping piece is arranged on the frame and is provided with a first state for clamping the film to limit the movement of the film relative to the support roller and a second state for separating the film to allow the film to move relative to the support roller. The clamping and pressing piece is adjusted to a first state so as to limit the movement of the film relative to the supporting roller, and the end of the film is clamped by the clamping and pressing piece and the supporting roller so as to enable the film on the new winding roller to be connected with the end of the old film. By utilizing the temporary clamping mechanism for roll changing, the end head of the film can be clamped and fixed in the process of changing the winding roll, so that the end head of the film is prevented from being separated from the carrier roller, and the subsequent film splicing operation is prevented from being interfered.

Description

Temporary clamping mechanism for roll changing and film production line

Technical Field

The utility model relates to the field of film processing, in particular to a temporary clamping mechanism for roll changing and a film production line.

Background

Films of various materials are widely applied to the fields of product packaging, product packaging and the like, and the films are generally wound on a winding roller. The existing film winding roller can see patent with application number of CN201510814010.3, and can release or furl the film by rotating the winding roller.

On a continuous processing production line, when the film on the winding roller is used, the winding roller for winding the film needs to be replaced for use. And carrying out continuous connection operation on the two sections of films. However, if the film ends are not fixed during the film splicing process, the film splicing operation is seriously disturbed, and the film splicing efficiency is affected.

Therefore, how to fix the end of the film during the film splicing process is a technical problem to be solved.

Disclosure of Invention

The utility model aims to overcome the technical defects, and provides a temporary clamping mechanism for roll changing, which solves the technical problem of how to fix the end head of a film in the film splicing process in the prior art.

In order to achieve the technical purpose, the technical scheme of the utility model comprises a temporary clamping mechanism for roll changing, which comprises the following components:

the rack comprises a supporting seat for placing the wind-up roll;

the clamping assembly comprises a carrier roller and a clamping piece, wherein the carrier roller is rotatably arranged on the frame, the bearing roller is parallel to the winding roller, the clamping piece is arranged on the frame, and has a first state of clamping the film to limit the movement of the film relative to the bearing roller and a second state of separating the film to allow the film to move relative to the bearing roller.

Preferably, the clamping and pressing piece comprises a cylinder and a die head, wherein a cylinder body of the cylinder is connected with the frame and the piston rod, so as to drive the die head to be close to or far away from the film.

Preferably, the die head has an arc surface fitting the backup roll.

Preferably, the circular arc surface is attached with a rubber pad.

Preferably, the nip member is located above the backup roll.

Preferably, the supporting seat comprises two supporting parts, and the two supporting parts are respectively used for supporting two ends of the winding roller.

Preferably, the support part is provided with a guide wedge surface, and a placing groove is formed in the top end of the guide wedge surface.

Preferably, a buffer groove is formed in the bottom end of the guide wedge surface.

Preferably, the frame is a metal frame.

A film production line is provided with the temporary clamping mechanism for roll changing.

Compared with the prior art, the utility model has the beneficial effects that: the winding roller for winding the film is rotatably arranged on the supporting seat, and the film bypasses the supporting roller. When the film on the wind-up roll is used up, a new wind-up roll needs to be replaced. At this time, the nip may be adjusted to the first state to limit movement of the film relative to the backup roll, and the end of the film is clamped by the nip and the backup roll, so that the film on the new wind-up roll and the old film end are spliced together. By utilizing the temporary clamping mechanism for roll changing, the end head of the film can be clamped and fixed in the process of changing the winding roll, so that the end head of the film is prevented from being separated from the carrier roller, and the subsequent film splicing operation is prevented from being interfered.

Drawings

FIG. 1 is a schematic view of a temporary clamping mechanism for roll changing according to an embodiment of the present utility model;

FIG. 2 is an exploded schematic view of a temporary clamping mechanism for roll changing according to an embodiment of the present utility model;

the machine frame 100, the support base 110, the support 111, the guide wedge 1111, the placement groove 1112, the buffer groove 1113, the clamping assembly 200, the backup roll 210, the clamping member 220, the air cylinder 221, the die head 222, and the rubber pad 2221.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 2, an embodiment of the utility model provides a temporary clamping mechanism for roll changing, which belongs to the field of film processing.

In some preferred embodiments, the temporary clamping mechanism for roll changing includes a frame 100 and a clamping assembly 200, wherein the frame 100 includes a support 110 for placing a wind-up roll. The clamping assembly 200 includes a carrier roller 210 and a nip member 220, the carrier roller 210 is rotatably mounted to the frame 100 with the carrier roller 210 parallel to the wind-up roller, the nip member 220 is mounted to the frame 100 and has a first state of nipping the film to restrict movement of the film relative to the carrier roller 210, and a second state of disengaging the film to allow movement of the film relative to the carrier roller 210.

In the above embodiment, the wind-up roll around which the film is wound is rotatably placed on the support base 110, and the film is made to bypass the carrier roller 210. When the film on the wind-up roll is used up, a new wind-up roll needs to be replaced. At this time, the nip 220 may be adjusted to the first state to limit movement of the film relative to the backing roll 210, thereby clamping the end of the film with the nip 220 and backing roll 210 to facilitate splicing together the film on the new take-up roll and the old film end. By utilizing the temporary clamping mechanism for roll changing, which is provided by the utility model, the end head of the film can be clamped and fixed in the process of changing the winding roll, so that the end head of the film is prevented from being separated from the carrier roller 210, and the subsequent film splicing operation is prevented from being interfered.

For the sake of clarity, the temporary clamping mechanism for roll changing provided by the utility model is described herein in terms of two-section film splicing operation. When the film on the old winding roller is used, the end head of the film wound on the old winding roller can be separated from the old winding roller. At this point, it is necessary to stop continuing to pull the film and clamp the end of the film with the nip 220 and the backup roll 210. After the new winding roller is installed, the film end extended by the new winding roller and the previous film end are connected together, and two sections of films are usually bonded together by using an adhesive tape.

As long as the embodiment of the clamping member that can clamp and fix the end of the film in cooperation with the wind-up roll is possible, in some preferred embodiments, the clamping member 220 includes a cylinder 221 and a die head 222, and the cylinder body of the cylinder 221 is mounted to connect the die head 222 with the frame 100 and the piston rod to drive the die head 222 toward or away from the film. When it is desired to adjust the nip 220 to the first state, the die 222 may be driven by the air cylinder 221 to press the film, thereby restricting movement of the film relative to the backing roll 210 under the nip pressure of the die 222 and the backing roll 210. When the nip 220 is required to be adjusted to the second state, the die 222 may be driven away from the film by the air cylinder 221, which may allow unrestricted movement of the film relative to the carrier roller 210.

Based on the above embodiments, in some preferred embodiments, die head 222 has an arcuate surface that conforms to idler 210. The die head 222 is provided with an arc surface attached to the carrier roller 210, so that the contact area between the end head and the film can be increased, and the die head 222 can further effectively limit the movement of the film relative to the carrier roller 210.

In some preferred embodiments, the circular arc surface is attached with a rubber pad 2221. The rubber pad 2221 can increase the friction force between the die head 222 and the film on one hand, and on the other hand, the rubber pad 2221 is softer in texture, so that the film can be prevented from being crushed by the die head 222.

In some preferred embodiments, nip member 220 is positioned above carrier roller 210. The film can be wound around the upper part of the supporting roller 210, and the film can be abutted against the supporting roller 210 under the action of gravity. While the nip member 220 is located above the carrier roller 210, the carrier roller 210 can be pressed from above.

As long as the implementation of the support base 110 for the wind-up roll is possible, in some preferred embodiments, the support base 110 includes two support portions 111, where the two support portions 111 are used to support two ends of the wind-up roll, respectively.

On the basis of the above embodiments, in some preferred embodiments, the support 111 has a guide wedge 1111, and a placement groove 1112 is formed at the top end of the guide wedge 1111. The rotatable embedding of end of wind-up roll is established in standing groove 1112, when needs change the wind-up roll, can lift up the wind-up roll in standing groove 1112 to make the wind-up roll along guide wedge 1111 landing. And a new wind-up roll is lifted and thrown into the placement groove 1112.

In some preferred embodiments based on the above embodiments, the bottom end of the guiding wedge 1111 is provided with a buffer groove 1113. When the replaced wind-up roller slides down along the guide wedge 1111, the wind-up roller will eventually roll into the buffer slot 1113 and eventually stop rolling in the buffer slot 1113. And waits for the operator to handle the wind-up roll in the buffer slot 1113.

It will be appreciated that in some preferred embodiments, the frame 100 is used to support the carrier roller 210 and the wind-up roller, and thus the frame 100 needs to have sufficient structural strength, in some preferred embodiments, the frame 100 is a metal frame.

The two ends of the wind-up roll around which the film is wound are rotatably placed on the two supporting portions 111, respectively, and the film is made to bypass the carrier roller 210. When the film on the wind-up roll is used, the wind-up roll can be lifted from the placing groove 1112 and can slide down along the guiding wedge 1111. And a new wind-up roll is lifted and thrown into the placement groove 1112. The die 222 may be driven by an air cylinder 221 to press against the film to limit movement of the film relative to the backing roll 210 under the nip of the die 222 and the backing roll 210. Since die head 222 has an arcuate surface that conforms to carrier roller 210. The die head 222 is provided with an arc surface attached to the carrier roller 210, so that the contact area between the end head and the film can be increased, and the die head 222 can further effectively limit the movement of the film relative to the carrier roller 210. At this time, the nip 220 may be adjusted to the first state to limit movement of the film relative to the backing roll 210, thereby clamping the end of the film with the nip 220 and backing roll 210 to facilitate splicing together the film on the new take-up roll and the old film end. By utilizing the temporary clamping mechanism for roll changing, which is provided by the utility model, the end head of the film can be clamped and fixed in the process of changing the winding roll, so that the end head of the film is prevented from being separated from the carrier roller 210, and the subsequent film splicing operation is prevented from being interfered.

The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any of various other corresponding changes and modifications made according to the technical idea of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A temporary clamping mechanism for roll changing, comprising:

the rack comprises a supporting seat for placing the wind-up roll;

2. A temporary clamping mechanism for roll changing according to claim 1, wherein the nip member comprises a cylinder and a die head, the cylinder body of the cylinder being mounted in connection with the frame, the piston rod, and the die head to drive the die head toward or away from the film.

3. The temporary holding mechanism for roll change according to claim 2, wherein the die head has an arc surface that conforms to the backup roll.

4. A temporary clamping mechanism for roll change according to claim 3, wherein the circular arc surface is attached with a rubber pad.

5. A temporary clamping mechanism for a roll change according to claim 1, wherein the crimp is located above the backup roll.

6. The temporary clamping mechanism for roll changing according to claim 1, wherein the supporting base comprises two supporting portions, and the two supporting portions are respectively used for supporting two ends of the wind-up roll.

7. The temporary holding mechanism for roll change according to claim 6, wherein the support portion has a guide wedge surface, and a placement groove is provided at a tip end of the guide wedge surface.

8. The temporary clamping mechanism for roll changing according to claim 7, wherein a buffer groove is formed in the bottom end of the guide wedge surface.

9. The temporary clamping mechanism for roll changing according to claim 1, wherein the frame is a metal frame.

10. A film production line, characterized in that it is equipped with a temporary clamping mechanism for roll changing according to any one of claims 1 to 9.