CN213261082U

CN213261082U - Herringbone clamping plate of film blowing equipment

Info

Publication number: CN213261082U
Application number: CN202021862321.XU
Authority: CN
Inventors: 梅基业; 许丰; 佘俊江
Original assignee: Guangdong Jinming Machinery Co Ltd
Current assignee: Guangdong Jinming Machinery Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-25
Anticipated expiration: 2030-08-31

Abstract

A herringbone clamping plate of film blowing equipment comprises an inclined left frame and an inclined right frame, wherein the left frame and the right frame are combined into a herringbone; in controlling two frames, each frame the inside is equipped with many parallel arrangement's deflector roll, and each deflector roll is arranged from top to bottom, and the central axis of each deflector roll is along longitudinal extension, the cross section structure of every deflector roll is two-layer including inside and outside, and wherein the inlayer is the metal roller core, and the skin is outer for rubber outer jacket layer, and rubber outer jacket layer is formed with the ratchet and becomes the rubber ratchet on the cross section. The utility model discloses the during operation, the chevron board inboard is pressed close to the membrane bubble and is removed, and the film is pressed on the surface of deflector roll, nevertheless because the outer ratchet for having rubber ratchet of deflector roll, therefore the rubber ratchet of deflector roll takes place adaptability and warp very easily to alleviate the radial reaction force to the film, alleviate the problem of concave pocket, and reduced the risk and the degree that the film was strained.

Description

Herringbone clamping plate of film blowing equipment

Technical Field

The utility model belongs to the technical field of blown film equipment, especially, relate to a blown film equipment herringbone splint.

Background

When the film blowing equipment is used for production, plastic raw materials are melted and then extruded out through a machine head 31, as shown in figure 1, compressed air is blown into the center of a film bubble through an air inlet pipe in the center of the machine head, the film bubble is blown, the film bubble is gradually flattened through a herringbone clamping plate after being blown, a cylindrical film bubble 33 is flattened into a double-layer film through a traction clamping roller 32, the double-layer film bypasses a horizontal fixed guide roller 34, and finally the double-layer film is rolled through rolling equipment. The herringbone clamping plate comprises an inclined left frame 11 and an inclined right frame 12, the left frame and the right frame are approximately in a herringbone shape after being clamped, and therefore the herringbone clamping plate is commonly called as the herringbone clamping plate in the industry, wherein the left frame and the right frame are in an inverted V shape after being clamped for an upward blowing type film blowing device, and the left frame and the right frame are in an upright V shape after being clamped for a downward blowing type film blowing device. In the left and right frames, a plurality of guide rollers 2 are arranged in parallel in each frame, each guide roller 2 is arranged from top to bottom, and the central axis of each guide roller extends along the longitudinal direction.

When the herringbone clamping plate of the film blowing equipment works, the film bubble moves close to the inner side of the herringbone plate and is adhered to the surface of the metal guide roller, the metal guide rollers can be rubbed to rotate by the operation of the film, and the metal guide rollers can passively rotate by the rotation of the metal guide rollers. The herringbone clamping plate of the existing film blowing equipment has the following defects: firstly, because the film passing through the herringbone clamping plate is just extruded and formed and is relatively tender, when the herringbone clamping plate is attached to the surface of the metal guide roller, the metal guide roller can generate radial pressure (reaction force) on the film under the pressure action of compressed air, so that an indentation can be formed on the surface of the film, and the herringbone clamping plate is called as a concave pocket in the industry; secondly, because the metal guide roller is heavier, the metal guide roller needs larger force for twisting to rotate, which means that the reaction force (pulling force) of the metal guide roller to the film is larger, and the reaction force can also damage the film material.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned shortcoming and provide a blown film equipment herringbone splint, it can alleviate the film and produce the risk of concave pocket.

The purpose can be realized according to the following scheme: a herringbone clamping plate of film blowing equipment comprises an inclined left frame and an inclined right frame, wherein the left frame and the right frame are combined into a herringbone; in controlling two frames, each frame the inside is equipped with many parallel arrangement's deflector roll, and each deflector roll is arranged from top to bottom, and the central axis of each deflector roll is along longitudinal extension, its characterized in that, the cross section structure of every deflector roll is two-layer inside and outside including, and wherein the inlayer is the metal roller core, and the skin is the outer rubber overcoat layer, and the rubber overcoat layer is formed with the ratchet and becomes the rubber ratchet on the cross section.

The utility model has the advantages of it is following and effect:

one, the utility model discloses the during operation, the inboard removal of lambdoidal plate is pressed close to the membrane bubble, and the film is pressed on the surface of deflector roll, nevertheless because the outer ratchet for having the rubber ratchet of deflector roll, therefore the rubber ratchet of deflector roll takes place adaptability and warp very easily to alleviate the radial reaction force to the film, alleviate the problem of concave pocket.

And the outer layer of the guide roller is a rubber outer sleeve layer, so that the whole guide roller is light and handy, the shifting is convenient, and the adhesive force between the surface of the guide roller and the film is low, so that the twisting power of the film to the guide roller is small, and the pulling force (reacting force) of the guide roller to the film is small, thereby reducing the risk and degree of the film being pulled.

Drawings

Fig. 1 is a schematic diagram of the position and the function of a herringbone clamping plate in a film blowing device.

Fig. 2 is a schematic diagram of the overall structure of an embodiment of the present invention.

Fig. 3 is a schematic sectional view of each guide roller in fig. 2.

Detailed Description

The herringbone clamping plate of the film blowing equipment shown in fig. 2 comprises an inclined left frame 11 and an inclined right frame 12, wherein the left frame 11 and the right frame 12 are combined into a herringbone shape; in the left and right frames, a plurality of guide rollers 2 are arranged in parallel in each frame, each guide roller 2 is arranged from top to bottom, and the central axis of each guide roller extends along the longitudinal direction. As shown in FIG. 2, the cross-sectional structure of each guide roller comprises an inner layer and an outer layer, wherein the inner layer is a metal roller core 21, the outer layer is a rubber outer sleeve layer 22, and the rubber outer sleeve layer 22 is formed with ratchet teeth 220 on the cross section to form a rubber ratchet.

Claims

1. A herringbone clamping plate of film blowing equipment comprises an inclined left frame and an inclined right frame, wherein the left frame and the right frame are combined into a herringbone; in controlling two frames, each frame the inside is equipped with many parallel arrangement's deflector roll, and each deflector roll is arranged from top to bottom, and the central axis of each deflector roll is along longitudinal extension, its characterized in that, the cross section structure of every deflector roll is two-layer inside and outside including, and wherein the inlayer is the metal roller core, and the skin is the outer rubber overcoat layer, and the rubber overcoat layer is formed with the ratchet and becomes the rubber ratchet on the cross section.