A polyurethane plastic foam board automatic shaping die-cutting machine and die-cutting process

Abstract

The invention relates to an automatic shaping die-cutting machine for polyurethane plastic foam board, which comprises a workbench, a mounting frame, a fixing device and a cutting device. A square groove is arranged in the middle of the workbench, and sliding grooves are symmetrically arranged on the left and right sides of the workbench. There is a mounting frame installed on the side, and a square gap is opened at the lower end of the mounting frame. The front side of the mounting frame is connected with the cutting device, and the lower end of the cutting device is connected with the fixing device. The process of using the above die-cutting machine to die-cut the polyurethane plastic foam board includes the following Steps: foam board stacking, foam board positioning, equipment adjustment, foam board cutting and discharging. The invention adopts wire cutting to cut the polyurethane foam, which eliminates the defect that debris is easily generated when cutting with a blade, and during the cutting process, the steel wire can move back and forth relative to the polyurethane foam to open a cut at the lower end of the polyurethane foam. The resistance encountered by the driving mechanism during the downward movement is reduced, thereby reducing the difficulty of cutting.

Description

technical field [0001] The invention relates to the technical field of plastic foam processing, in particular to an automatic shaping die-cutting machine for polyurethane plastic foam boards and a die-cutting process. Background technique [0002] Polyurethane rigid foam is a high molecular polymerization made of isocyanate and polyether as the main raw materials, mixed by special equipment, and foamed on-site by high-pressure spraying under the action of various additives such as foaming agent, catalyst, and flame retardant. thing. After the polyurethane foam is molded, the size is large, and it is necessary to cut the large block of foam into foam boards of a specified size according to the actual use. At this time, automatic cutting equipment is required. [0003] The cutting methods of the existing foam automatic slitting equipment are mainly divided into blade cutting method and wire cutting method. These two cutting methods have some problems in the actual use process...

AI Technical Summary

Problems solved by technology

[0004] (1) When the blade is used to cut the foam, it is easy to generate debris, and the foam is easily adsorbed on the blade. It is necessary to use manual methods or other equipment to remove the foam, which increases the operating cost of the manufacturer;

[0005] (2) When using steel wires and other linear objects to cut the foam, in order to reduce the difficulty of cutting, it is often chosen to use a heating wire to cut the foam. The heating wire with a higher temperature can easily separate the foam after contacting it, but it is also Part of the melted foam will adhere to the surface of the heating wire, resulting in poor heat conduction effect and affecting the subsequent cutting effect

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