CN212711981U

CN212711981U - Unwinding buffer device of film laminating machine

Info

Publication number: CN212711981U
Application number: CN202021562669.7U
Authority: CN
Inventors: 林伟进; 陈奕选; 魏卢刚; 黄文亮
Original assignee: Shantou Youte Machinery Co ltd
Current assignee: Shantou Youte Machinery Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-16
Anticipated expiration: 2030-07-31

Abstract

The utility model relates to an unreeling buffer device of a film coating machine, which comprises a frame, at least two fixed guide rollers, at least one movable guide roller guide mechanism and at least one air spring group, wherein each fixed guide roller can be rotatably installed on the frame; the air spring group is the same with the quantity of removing deflector roll guiding mechanism and one-to-one, and air spring group is including controlling two air springs that set up side by side, and the cylinder of air spring is installed in the frame and is paralleled with the guide rail that corresponds, and the push rod of air spring is connected with the movable seat that corresponds. The utility model discloses can carry out effective control to the tension size of film at the roll change in-process to eliminate the harmful effects because of the instantaneous tension increase of film causes.

Description

Unwinding buffer device of film laminating machine

Technical Field

The utility model relates to a coating machine, concretely relates to coating machine unreel buffer.

Background

The film coating is that the plastic film is coated with adhesive, and then the plastic film and the printed matter using paper as printing stock are pressed together by a rubber roller and a heating roller to form a paper-plastic integrated product. The laminating machine is equipment for finishing a laminating process.

In the existing laminating machine, an unwinding device for unwinding a thin film is arranged at the front end of the laminating machine, a traction device is arranged behind the unwinding device, the unwinding device continuously releases the thin film during production, and the traction device backwards pulls the thin film released by the unwinding device; when the film is about to be used up, the film needs to be stopped, cut, rolled, spliced and released again to complete the roll change operation. However, in the process of changing the new film roll from the static state to the rotating state, the film between the unwinding device and the drawing device becomes shorter and the instantaneous tension becomes larger, which may adversely affect important components of the laminating machine, such as a tension sensor and a guide roller bearing, and the quality of the laminated film.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a compound membrane machine unreel buffer is provided, this kind of unreel buffer can carry out effective control to the tension size of film at the reel change in-process to eliminate the harmful effects because of the instantaneous tension increase of film causes. The technical scheme is as follows:

the utility model provides a compound membrane machine unreel buffer which characterized in that: the device comprises a rack, at least two fixed guide rollers, at least one movable guide roller guide mechanism and at least one gas spring group, wherein each fixed guide roller can be rotatably arranged on the rack; the movable guide roller guide mechanisms are the same in number as the movable guide rollers and correspond to the movable guide rollers one by one, each movable guide roller guide mechanism comprises two guide rails and two movable seats, the two guide rails are installed on the rack and are arranged side by side on the left and right, the two movable seats correspond to the two guide rails one by one, the movable seats are installed on the corresponding guide rails and can slide up and down along the guide rails, and the movable guide rollers are rotatably installed on the corresponding two movable seats; the air spring group is the same with the quantity of removing deflector roll guiding mechanism and one-to-one, and air spring group is including controlling two air springs that set up side by side, and the cylinder of air spring is installed in the frame and is paralleled with the guide rail that corresponds, and the push rod of air spring is connected with the movable seat that corresponds.

Generally, the gas spring is a gas spring capable of automatically resetting; the push rod of the gas spring is located at the position closest to the cylinder barrel under the action of no external force, moves from the position close to the cylinder barrel to the position far away from the cylinder barrel after being subjected to the external force, and automatically returns to the position closest to the cylinder barrel after the external force disappears.

Generally, the unwinding buffer device is arranged between an unwinding device and a traction device of a laminator, and a film unwound from the unwinding device is drawn by the traction device after bypassing each fixed guide roller and each moving guide roller. In the process of changing the roll, in the process of changing a new film roll from a static state to a rotating state, the length of the film wound between each movable guide roller and each fixed guide roller is gradually shortened, and each movable seat and the movable guide roller on the movable seat move downwards along the corresponding guide rail under the action of the film (at the moment, the push rod of each gas spring moves downwards along with the corresponding movable seat); each gas spring can apply acting force moving towards the film to the corresponding movable seat and the moving guide roller on the movable seat, so that the moving guide roller is ensured to be attached to the surface of the film, and the film is in a tensioning state; therefore, the tension of the film between the unwinding device and the traction device can be effectively controlled, adverse effects caused by instantaneous tension increase of the film are eliminated, the service life of the part can be effectively prolonged, and the film laminating quality is ensured.

In a preferred scheme, all the fixed guide rollers are sequentially arranged from front to back; the number of the movable guide rollers is one less than that of the fixed guide rollers, and the position of each movable guide roller corresponds to the gap between every two adjacent fixed guide rollers.

In a preferred embodiment, the guide rail is disposed in a vertical direction. Therefore, the movable seat and the movable guide roller on the movable seat can be lifted on the guide rail more smoothly.

The utility model discloses an unreel buffer can set up between the unwinding device and the draw gear of laminating machine, through the cooperation between each fixed deflector roll, each removal deflector roll guiding mechanism and each air spring, can carry out effective control to the tension size that is in the film between unwinding device and the draw gear at the change of lap in-process to eliminate the harmful effects because of the instantaneous tension increase of film causes, can effectively prolong the life of part and guarantee the laminating quality.

Drawings

Fig. 1 is a schematic view of a state of an unwinding buffering device before reel change according to a preferred embodiment of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a schematic state diagram of the unwinding buffer device shown in fig. 1 during a reel change process.

Detailed Description

As shown in fig. 1, 2 and 3, the unwinding buffer device of the film laminating machine comprises a frame 1, two fixed guide rollers 2, a movable guide roller 3, a movable guide roller guide mechanism 4 and a gas spring set 5, wherein the two fixed guide rollers 2 can be rotatably mounted on the frame 1 and are sequentially arranged from front to back; the movable guide roller guide mechanism 4 comprises two guide rails 41 and a good movable seat 42, the two guide rails 41 are arranged on the frame 1 and arranged side by side from left to right, the two movable seats 42 correspond to the two guide rails 41 one by one, the movable seats 42 are arranged on the corresponding guide rails 41 and can slide up and down along the guide rails 41, the movable guide roller 3 is rotatably arranged on the corresponding two movable seats 42, and the position of the movable guide roller 3 corresponds to the gap between the two fixed guide rollers 2; the gas spring group 5 comprises two gas springs 51 which are arranged side by side at the left and the right, the cylinder 511 of the gas spring 51 is arranged on the frame 1 and is parallel to the corresponding guide rail 41, and the push rod 512 of the gas spring 51 faces downwards and is connected with the corresponding movable seat 42.

In the present embodiment, the gas spring 51 is a gas spring that can be automatically reset; the push rod 512 of the gas spring 51 is located at the position closest to the cylinder 511 without being subjected to an external force, moves from the position close to the cylinder 511 to the position away from the cylinder 511 after being subjected to the external force, and automatically returns to the position closest to the cylinder 511 after the external force disappears.

In the present embodiment, both the guide rails 41 are placed in the vertical direction. This makes it possible to smoothly move the two movable blocks 42 and the movable guide rollers 3 thereon up and down on the two guide rails 41.

The working principle of the unreeling buffering device is briefly described as follows:

the unwinding buffer device is arranged between the unwinding device and the traction device of the laminating machine, and a film discharged by the unwinding device is drawn by the traction device after bypassing the two fixed guide rollers 2 and the movable guide roller 3.

In the process of changing the roll, in the process of changing a new film roll from a static state to a rotating state, the length of the film wound between the moving guide roller 3 and the two fixed guide rollers 2 is gradually shortened, and the two movable seats 42 and the moving guide rollers 3 thereon move downwards along the two guide rails 41 under the action of the film (at this time, the push rods 512 of the two gas springs 51 move downwards along with the corresponding movable seats 42); the two gas springs 51 can apply acting force moving towards the film to the corresponding movable seat 42 and the moving guide roller 3 thereon, so that the moving guide roller 3 is ensured to be tightly attached to the surface of the film, the film is in a tensioning state, and the tension of the film between the unwinding device and the traction device can be effectively controlled.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a compound membrane machine unreel buffer which characterized in that: the device comprises a rack, at least two fixed guide rollers, at least one movable guide roller guide mechanism and at least one gas spring group, wherein each fixed guide roller can be rotatably arranged on the rack; the movable guide roller guide mechanisms are the same in number as the movable guide rollers and correspond to the movable guide rollers one by one, each movable guide roller guide mechanism comprises two guide rails and two movable seats, the two guide rails are installed on the rack and are arranged side by side on the left and right, the two movable seats correspond to the two guide rails one by one, the movable seats are installed on the corresponding guide rails and can slide up and down along the guide rails, and the movable guide rollers are rotatably installed on the corresponding two movable seats; the air spring group is the same with the quantity of removing deflector roll guiding mechanism and one-to-one, and air spring group is including controlling two air springs that set up side by side, and the cylinder of air spring is installed in the frame and is paralleled with the guide rail that corresponds, and the push rod of air spring is connected with the movable seat that corresponds.

2. The unwinding buffering device for the film laminating machine as claimed in claim 1, wherein each of the fixed guide rollers is arranged from front to back in sequence; the number of the movable guide rollers is one less than that of the fixed guide rollers, and the position of each movable guide roller corresponds to the gap between every two adjacent fixed guide rollers.

3. The unwinding buffering device of the film laminating machine as claimed in claim 1 or 2, characterized in that: the guide rail is placed in a vertical direction.