An accessory for efficient and energy-saving production of plastic products

Abstract

The invention discloses an accessory for producing plastic products with high efficiency and energy saving. A filter sieve head is installed, and each group of filter holes is composed of a discharge port and a return port set on the barrel in the same direction; the screw device is a single screw or a double screw, and the single screw is made up of N screws connected in series. And at the junction of every two screws and corresponding to the interval between the discharge port and the return port, a split single screw with a partition or a single screw that is divided into N sections by a partition and the partition The installation position corresponds to the interval between the discharge port and the return port. The twin-screw is composed of two sets of single-screws or two sets of conjoined single-screws arranged in parallel in the same direction and interlocking with each other; where N≥2 is a positive integer . The accessory of the present invention is applied to plastic equipment to realize changing the screen without stopping the machine, and has the advantages of good equipment stability, high safety and low production cost.

Description

technical field [0001] The invention belongs to the technical field of plastic machinery, and in particular relates to an accessory for high-efficiency and energy-saving production of plastic products. Background technique [0002] Screws, barrels and sieve heads are essential accessories in the equipment for manufacturing plastic products, such as pipe machines, film blowing machines, recycled pellet machines, wire drawing machines and other plastic machinery, all use barrels, screws and sieve heads Accessories. In the process of use, the screw is generally installed in the barrel for conveying and mixing materials; while the barrel realizes the function of mechanical pressure balance or exhaust; The head or rear die head is installed on the extrusion end of the screw, and the screen installed on the screen head needs to be replaced in the actual production process. Due to the structural design problems of the screw, barrel, and screen head accessories, the traditional ol...

AI Technical Summary

Problems solved by technology

[0003] 1. During the replacement process of the screen, in order to ensure safety, it must be shut down, resulting in low production efficiency, and the equipment is continuously started, preheated, and shut down, which makes the plastic machinery easily damaged and consumes a lot of energy;

[0004] 2. The screen head and the rear die head or forming die head are installed at the extrusion end of the screw. When changing the screen or filtering the material, the balance of mechanical pressure cannot be maintained, and the production environment cannot be kept under vacuum conditions.

This greatly increases production costs

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