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Back coating device and compound machine using same

A technology of back coating and box body, which is applied in the field of composite machines, can solve the problems of condensation of back coating liquid and uneven application of back coating liquid, etc., achieve good back coating effect, smooth back coating process, and increase heating time

Active Publication Date: 2020-06-19
上海鼎韧包装科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In paper production, a similar back-coating device is often used to back-coat the base paper, and to replenish water and adjust the humidity of the base paper. However, during production in winter, due to the low temperature in winter, the back-coating liquid is prone to condensation, which is easy to cause back-coating. Technical problem of uneven application of coating liquid

Method used

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  • Back coating device and compound machine using same
  • Back coating device and compound machine using same
  • Back coating device and compound machine using same

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] refer to figure 1 and image 3 , is a kind of back-coating device disclosed by the present invention, comprising a cuboid box body 1, a rectangular back-coating tank 2 is provided on the top of the box body 1, and the opposite side walls in the back-coating tank 2 are respectively rotated and installed with Cylindrical hydrophilic roller 3, coating roller 4 and auxiliary roller 5, the axis directions of the three are parallel to each other, hydrophilic roller 3 is arranged on the side near the bottom of the back coating tank 2, and coating roller 4 is installed on the hydrophilic roller 3 On the side away from the bottom of the back coating tank 2, the surface of the coating roller 4 is in contact with the surface of the hydrophilic roller 3, and the auxiliary roller 5 is installed on the side of the coating roller 4 away from the hydrophilic roller 3...

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Abstract

The invention relates to a back coating device. The back coating device comprises a box body, and a back coating groove is formed in the box body. A hydrophilic roller in contact with back coating liquid, a coating roller propped against the hydrophilic roller and an auxiliary roller playing a propping role are mounted in the back coating groove. A back coating tank is mounted in the box body. A water outlet communicated with the back coating tank is formed in the bottom of the back coating groove. A water inlet is formed in the side wall of the back coating tank. A feeding pipe is installed at the water inlet, and the feeding pipe is communicated with the back coating groove. A water pump used for pumping back coating liquid is installed on the feeding pipe. A coiled pipe is installed inthe back coating tank, one end of the coiled pipe is communicated with the water outlet, the other end of the coiled pipe is communicated with the water inlet, and an electric heating wire used for heating the coiled pipe is wound on the peripheral side wall of the coiled pipe. The back coating device can be prevented from being condensed when used at a low temperature.

Description

technical field [0001] The invention relates to the technical field of paper production equipment, in particular to a back coating device and a composite machine using the device. Background technique [0002] Composite films are widely used in flexible packaging products. Composite films with various structures such as paper-plastic composite films, paper-aluminum composite films, aluminum foil composite films, and plastic-plastic composite films are considered by enterprises when packaging products. According to the packaging requirements of different products, choose the corresponding composite film packaging. The composite machine is to bond two or more layers of materials into one with an adhesive. Make the original materials get new functions. Such as film and aluminum foil, film, paper, non-woven fabrics, etc. are often used. It can also be compounded with film, sponge, cloth, etc. Common flexible packaging materials are basically composite products. Back coating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/56D21H23/60
CPCD21H23/56D21H23/60
Inventor 黄卫平陈晓光
Owner 上海鼎韧包装科技有限公司
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