Plastic uptake mold flow rate adjusting device

Abstract

The invention discloses a plastic uptake mold flow speed adjusting device, which comprises a pipe blank plastic uptake mold body (1), a plurality of hollow tubular main mandrels (2) are arranged in the pipe blank plastic uptake mold body (1), the main mandrels (2) are arranged in parallel, the main mandrels (2) are connected with the pipe blank plastic uptake mold body (1) in a sliding mode, plastic uptake pipes (3) are arranged in the main mandrels (2), and the plastic uptake pipes (3) are sleeved in the main mandrels (2) and are coaxial with the main mandrels (2); and the lower ends of the main mandrels (2) protrude out of the lower end face of the pipe blank plastic uptake mold main body (1), the lower end of the pipe blank plastic uptake mold main body (1) is fixedly connected with a hollow forming mouth mold (4), the lower ends of the main mandrels (2) are sleeved in the forming mouth mold (4), and lower runners are formed between the outer surfaces of the lower sections of the main mandrels (2) and the inner surface of the forming mouth mold (4) at an interval. The plastic uptake mold flow rate adjusting device provided by the invention has the advantages that the defects in the prior art can be overcome, and the structural design is reasonable and novel.

Description

technical field [0001] The invention relates to a device for adjusting flow speed of a plastic suction mold, which belongs to the field of plastic suction molds. Background technique [0002] Blister, also known as hollow blister, is a rapidly developing plastic processing method. The blister process began to be used to produce low-density polyethylene vials during World War II. In the late 1950s, with the birth of high-density polyethylene and the development of blister molding machines, blister technology has been widely used. The volume of the hollow container can reach thousands of liters, and some production has adopted computer control. Plastics suitable for blister include polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow containers are widely used as industrial packaging containers. According to the production method of the parison, blister can be divided into extrusion blister and injection blister, and the newly developed...

AI Technical Summary

Problems solved by technology

However, when adjusting the equipment to meet the production requirements of tube blanks with different wall thicknesses, it is necessary to adjust the single main mandrel and forming die, and it is necessary to adjust the main mandrel and forming die during the production cycle to adjust the wall of the tube blank When it is thick, it is also necessary to adjust the single main mandrel and forming die, which is inconvenient to adjust and affects the processing efficiency

Images