阅读说明：本技术 一种pet泡沫板材表面封孔工艺及其封孔装置 (PET foam sheet surface hole sealing process and hole sealing device thereof ) 是由 周利峰 黄华亮 于 2021-09-13 设计创作，主要内容包括：本发明公开了一种PET泡沫板材表面封孔工艺及其封孔装置,将PET泡沫板材直接依次通过小型预热滚筒、高温加热滚筒、冷却滚筒进行夹持输送,直接贴合极大的提高了导热效率,本发明为了降低高温加热滚筒的作业温度,在PET泡沫板材进入高温加热滚筒受热软化之前,先将PET泡沫板材通过多对上下分布的小型预热滚筒进行贴合输送预热,如此使得PET泡沫板材的温度提高到一定的程度,获得受热基础之后再进入高温加热滚筒,如此使得高温加热滚筒在不需要达到400℃的温度情况下就可以将PET泡沫板材迅速软化,如此极大的降低了高温加热滚筒的作业温度,提高了其使用寿命,避免了其高温受热变形的弊端,同时也降低了其表面防黏附材料的起皮脱落等弊端。(The invention discloses a hole sealing process for the surface of a PET foam plate and a hole sealing device thereof, wherein the PET foam plate is directly clamped and conveyed through a small preheating roller, a high-temperature heating roller and a cooling roller in sequence, and the heat conduction efficiency is greatly improved by direct bonding, in order to reduce the operating temperature of the high-temperature heating roller, before the PET foam plate enters the high-temperature heating roller to be heated and softened, the PET foam plate is firstly bonded, conveyed and preheated through a plurality of small preheating rollers which are distributed up and down, so that the temperature of the PET foam plate is improved to a certain degree, the PET foam plate enters the high-temperature heating roller after obtaining a heated basis, so that the PET foam plate can be rapidly softened by the high-temperature heating roller under the condition of not reaching the temperature of 400 ℃, the operating temperature of the high-temperature heating roller is greatly reduced, the service life of the PET foam plate is prolonged, and the defect of high-temperature heating deformation of the PET foam plate is avoided, meanwhile, the defects of peeling and falling of the surface anti-adhesion material are reduced.)

1. A PET foam board surface hole sealing process is characterized by comprising the following steps:

s1, clamping, rolling and conveying the PET foam board by a plurality of pairs of small preheating rollers up and down, and adhering the PET foam board to the small preheating rollers for preheating;

s2, clamping and rolling the preheated PET foam board by one or more pairs of high-temperature heating rollers which are distributed up and down, and adhering the PET foam board by the high-temperature heating rollers for high-temperature heating so that the surface temperature of the PET foam board is raised and softened, and a softened layer flows into surface holes or holes to shrink;

s3, the PET foam board heated at high temperature is clamped, rolled and conveyed by one or more pairs of cooling rollers which are distributed up and down, and is attached to the PET foam board by the cooling rollers for cooling and flat pressing, so that foam holes are filled and reduced, and the effect of sealing the holes on the surface of the PET foam board is achieved.

2. The PET foam board surface hole sealing process according to claim 1, wherein the small preheating rollers distributed up and down are provided with 2 to 6 pairs.

3. The PET foam board surface hole sealing process according to claim 1, wherein the temperature of the small preheating roller is 100-300 ℃.

4. The PET foam board surface sealing process according to claim 3, wherein the temperature of the small preheating roller is 220 ℃.

5. The PET foam board surface hole sealing process according to claim 1, wherein the temperature of the high-temperature heating roller is 100-400 ℃.

6. The PET foam board surface sealing process according to claim 5, wherein the temperature of the high-temperature heating roller is 300 ℃.

7. The PET foam board surface hole sealing process according to claim 1, wherein the small preheating roller and the high temperature heating roller are coated with nano paint or Teflon cloth on the outer sides of the peripheries thereof, or the surface layers thereof are plated with heat-resistant high temperature metal.

8. A hole sealing device for the surface of a PET foam board is characterized by comprising a small preheating roller, a high-temperature heating roller and a cooling roller; the small preheating rollers are arranged in a plurality and are distributed up and down relatively one by one, and a plurality of pairs of small preheating rollers distributed up and down relatively are sequentially and uniformly distributed; one side of the small preheating roller is provided with a high-temperature heating roller which is distributed up and down oppositely; one side of the high-temperature heating roller is provided with cooling rollers which are distributed up and down oppositely; the small preheating roller, the high-temperature heating roller and the cooling roller sequentially extend along the conveying direction of the PET foam plate; the small preheating roller, the high-temperature heating roller and the cooling roller are used for clamping and conveying the PET foam plates in a fitting manner.

Technical Field

The invention relates to a hole sealing process and a hole sealing device for the surface of a PET foam board.

Background

At present, the hole sealing mode of the surface of the PET foam board is to adopt a high-temperature roller to rapidly soften or melt a layer of the surface of the foam board at high temperature in a short time, and then a cold plate is replaced to apply certain pressure to the surface of the PET foam board so as to shrink or combine holes on the surface of the PET foam board, thereby achieving the effect of hole sealing on the surface of the PET foam board; however, the surface of the foam board needs to be softened quickly, so the temperature of the high-temperature roller generally needs to be positioned at a very high degree, and thus the high-temperature roller is always in a high-temperature operation environment of over 400 to 500 ℃, so that the high-temperature roller can be thermally deformed after being heated for a long time and cannot continuously operate for a long time, and in addition, in order to prevent the foam board from being adhered to the high-temperature roller, nano paint or Teflon cloth and the like are arranged on the high-temperature roller, but the high-temperature resistance of the materials is poor, the materials are easy to peel and fall off in the high-temperature operation environment of over 400 to 500 ℃, so the materials arranged on the surface of the high-temperature roller and the surface of the high-temperature roller need to reach a certain high-temperature resistance, a high requirement is provided for the high-temperature resistance of the materials, the production cost of enterprises is increased, and the requirement for high temperature in the manufacturing process is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention solves the problems that: provides a PET foam plate surface hole sealing process without high-temperature operation and a hole sealing device thereof.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a PET foam board surface hole sealing process comprises the following steps:

s1, clamping, rolling and conveying the PET foam board by a plurality of pairs of small preheating rollers up and down, and adhering the PET foam board to the small preheating rollers for preheating;

s2, clamping and rolling the preheated PET foam board by one or more pairs of high-temperature heating rollers which are distributed up and down, and adhering the PET foam board by the high-temperature heating rollers for high-temperature heating so that the surface temperature of the PET foam board is raised and softened, and a softened layer flows into surface holes or holes to shrink;

s3, the PET foam board heated at high temperature is clamped, rolled and conveyed by one or more pairs of cooling rollers which are distributed up and down, and is attached to the PET foam board by the cooling rollers for cooling and flat pressing, so that foam holes are filled and reduced, and the effect of sealing the holes on the surface of the PET foam board is achieved.

Further, 2-6 pairs of small preheating rollers are arranged in the vertical distribution mode.

Further, the temperature of the small preheating roller is 100-300 ℃.

Further, the temperature of the small preheating roller is 220 ℃.

Further, the temperature of the high-temperature heating roller is 100-400 ℃.

Further, the temperature of the high-temperature heating roller is 300 ℃.

Furthermore, the outer sides of the peripheries of the small preheating roller and the high-temperature heating roller are coated with nano paint or Teflon cloth, or the surface layer is plated with heat-resistant high-temperature metal.

A hole sealing device for the surface of a PET foam plate comprises a small preheating roller, a high-temperature heating roller and a cooling roller; the small preheating rollers are arranged in a plurality and are distributed up and down relatively one by one, and a plurality of pairs of small preheating rollers distributed up and down relatively are sequentially and uniformly distributed; one side of the small preheating roller is provided with a high-temperature heating roller which is distributed up and down oppositely; one side of the high-temperature heating roller is provided with cooling rollers which are distributed up and down oppositely; the small preheating roller, the high-temperature heating roller and the cooling roller sequentially extend along the conveying direction of the PET foam plate; the small preheating roller, the high-temperature heating roller and the cooling roller are used for clamping and conveying the PET foam plates in a fitting manner.

The invention has the following beneficial effects:

the PET foam board of the invention directly passes through the small preheating roller, the high temperature heating roller and the cooling roller in sequence for clamping and conveying, and the heat conduction efficiency is greatly improved by direct bonding, in order to reduce the operation temperature of the high temperature heating roller, before the PET foam board enters the high temperature heating roller for clamping, heating and softening up and down, the PET foam board is firstly bonded, conveyed and preheated by a plurality of pairs of small preheating rollers which are distributed up and down, so that the temperature of the PET foam board is improved to a certain degree, and then the PET foam board enters the high temperature heating roller after obtaining a heated base, so that the PET foam board can be rapidly softened by the high temperature heating roller without reaching the temperature of 400 ℃, the softening purpose can be realized by maintaining the temperature of the high temperature heating roller at 300 ℃, so the operation temperature of the high temperature heating roller is greatly reduced, and the service life of the high temperature heating roller is prolonged, the defect of high-temperature thermal deformation is avoided, and the defects of peeling and falling of the surface anti-adhesion material are reduced, so that enterprises do not need to use high-heat-resistance materials for substitution, and the production cost of the enterprises is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the hole sealing process for the surface of the PET foam board comprises the following steps:

s1, clamping, rolling and conveying the PET foam board 4 by a plurality of small preheating rollers 1 up and down, and adhering the PET foam board 4 to the small preheating rollers 1 for preheating; the small preheating rollers 1 distributed up and down can be arranged in 6 pairs, the temperature of the small preheating rollers 1 is 100-300 ℃, the preferred temperature is 220 ℃, and Teflon cloth is coated on the outer sides of the peripheries of the small preheating rollers.

S2, clamping, rolling and conveying the preheated PET foam board 4 through one or more pairs of high-temperature heating rollers 2 which are distributed up and down, and attaching the PET foam board 4 to the high-temperature heating rollers 2 for high-temperature heating, so that the surface temperature of the PET foam board is raised and softened, and a softened layer flows into surface holes or holes to shrink; the temperature of the high-temperature heating roller is 100-400 ℃, and 300 ℃ can be optimized.

S3, the PET foam board 4 heated at high temperature is clamped, rolled and conveyed by one or more pairs of cooling rollers 3 which are distributed up and down, and is attached to the PET foam board by the cooling rollers for cooling and flat pressing, so that foam holes are filled and reduced, and the effect of sealing holes on the surface of the PET foam board is achieved.

A hole sealing device for the surface of a PET foam plate comprises a small preheating roller 1, a high-temperature heating roller 2 and a cooling roller 3; the small preheating rollers 1 are arranged in plurality and are distributed up and down relatively one above the other, and a plurality of pairs of small preheating rollers 1 distributed up and down relatively are sequentially and uniformly distributed; one side of the small preheating roller 1 is provided with a high-temperature heating roller 2 which is distributed up and down oppositely; one side of the high-temperature heating roller 2 is provided with a cooling roller 3 which is distributed up and down oppositely; the small preheating roller 1, the high-temperature heating roller 2 and the cooling roller 3 sequentially extend along the conveying direction of the PET foam plate 4; the small preheating roller 1, the high-temperature heating roller 2 and the cooling roller 3 are used for attaching, clamping and conveying the PET foam plates 4.

The PET foam board 4 of the invention directly passes through the small preheating roller 1, the high temperature heating roller 2 and the cooling roller 3 in sequence for clamping and conveying, and the heat conduction efficiency is greatly improved by direct bonding, in order to reduce the operation temperature of the high temperature heating roller, before the PET foam board 4 enters the high temperature heating roller 2 for clamping, heating and softening up and down, the PET foam board 2 is firstly bonded, conveyed and preheated by a plurality of pairs of small preheating rollers 1 which are distributed up and down, so that the temperature of the PET foam board 4 is improved to a certain degree, the PET foam board enters the high temperature heating roller 2 after obtaining a heated base, so that the PET foam board 4 can be rapidly softened by the high temperature heating roller 2 under the condition that the temperature of the high temperature heating roller 2 does not need to reach 400 ℃, the softening purpose can be realized by maintaining the temperature of the high temperature heating roller 2 at 300 ℃, and the operation temperature of the high temperature heating roller 2 is greatly reduced, the service life of the anti-sticking material is prolonged, the defect of high-temperature thermal deformation of the anti-sticking material is avoided, the defects of peeling and falling of the anti-sticking material on the surface of the anti-sticking material are reduced, an enterprise does not need to use a high-heat-resistance material for substitution, and the production cost of the enterprise is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.