Introduction and operation method of plastic sheet production line-The Questions-Qingdao Chaofeng Plastic Machinery Co., Ltd-

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Introduction and operation method of plastic sheet production line
Source:   Author:   Addtime:2018/8/23 21:12:06   Visits:

 

The plastic sheet production line is a type of plastic machinery. Sheet machine, sheet production line, sheet equipment, sheet extruder

 

Method of operation

 

1. PVC plastic sheet production line preheating: This is to make the mold heated before starting, it needs to be preheated to mold heating.

 

2. Clamping: Reasonable adjustment of the opening and closing stroke is beneficial to improve the demoulding of the product and the effect of product feeding.

 

3. PVC plastic sheet production line preheating: steam enters the solid transfer mold, preheating the mold, so that the mold is preheated, and the condensed water and cold air during the storage period are discharged. Function: Improve the mold temperature and enhance the apparent melting degree of the product.

 

4. Penetration heating: Improve the core and internal weldability of the product. The penetration heating and waste steam are more serious.

 

5。 Heating on both sides: further enhance the heating effect and improve the surface quality of the product。

 

6。 Rewarming (insulation): All valves are closed, making full use of the residual heat of the mold to make the product heat-insulated。 Conducive to the surface of the product, it can save energy (steam)。

 

7 Vacuum cooling: The vacuum valve is opened and the vacuum pump is evacuated。 The residual heat and moisture in the mold and the product are all emptied, and part of the foaming agent is removed to prevent the product from swelling。 Forming a negative pressure in the mold facilitates the release of the product。

 

Introduction

 

1. Horizontal three-roll single-sheet machine production line:

 

The unit is mainly composed of main machine, screen changer, mold, tablet press, conveying table, tractor, cutting machine, stacking rack or winding machine;

 

The gearbox is made of cast steel. The gears are made of alloy steel and processed by grinding. The lubrication points in the box are forced lubrication. The lubricating oil is equipped with high-efficiency water cooling system.

 

The screw material is made of 38CrMOA1A high-quality nitrided steel, which is nitrided and sprayed with alloy on the surface.

 

The barrel material is made of 38CrMOA1A high-quality nitrided steel, which is nitrided and sprayed with alloy on the surface.

 

Processable raw materials are: PP, PE, PVC, PS, ABS, etc.;

 

This unit is mainly suitable for: advertising field (such as folder, etc.) in the field of plastic products (such as plastic cups, plastic biscuit boxes, etc.) advertising fields (such as billboards, etc.)

 

2. Horizontal three-roller co-extrusion sheet production line:

 

The unit is mainly composed of main machine, screen changer, mold, three-layer distributor, tablet press, conveying platform, tractor, cutting machine or coiling machine;

 

The gearbox is made of cast steel. The gears are made of alloy steel and processed by grinding. The lubrication points in the box are forced lubrication. The lubricating oil is equipped with high-efficiency water cooling system.

 

The screw material is made of 38CrMOA1A high-quality nitrided steel, which is nitrided and sprayed with alloy on the surface.

 

The barrel material is made of 38CrMOA1A high-quality nitrided steel, which is nitrided and sprayed with alloy on the surface.

 

The raw materials that can be processed are: PP, PE, PS, etc.

 

layered structure: AB, ABA.

 

This unit is mainly suitable for: advertising field (such as folder) in the field of plast


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