A kind of production technology of hard winding core tube

Abstract

The invention discloses a production process for a hard core winding pipe. According to the technical scheme, the production process for the hard core winding pipe comprises the following steps that 1, raw materials are mixed; 2, the mixed raw materials are extruded through an extruder; 3, forming is conducted through an extruding mold head; 4, vacuum shaping and cooling are conducted; 5, the materials are dragged out through a dragger; 6, the materials are cut through a cutting machine; and 7, the materials are turned over through a material turnover frame. In the step 4, gravity-free suspension type vacuum shaping and cooling are adopted. According to the production process for the hard core winding pipe, gravity bending is overcome in the cooling forming process of the hard core winding pipe, and the straightness of the core winding pipe is ensured.

Description

technical field [0001] The invention relates to the field of winding core tubes, more specifically, it relates to a production process of hard core tubes. Background technique [0002] The core tube is a part used to curl various films, tapes or papers and other strip products, so as to facilitate the storage and transportation of the products. [0003] However, for some high-precision and high-performance film materials, when it is necessary to use a hard core tube to wind them up, in order not to have adverse effects on these films, higher production requirements for the core tube are put forward. Standard, which is particularly important that the hard core tube needs to be very straight, otherwise it is easy to cause those films to be subjected to bending stress during winding and cause damage to the film. [0004] In the prior art, the production line for producing hard core tubes consists of a raw material mixer, an extruder, an extrusion die, a shaping cooling system,...

AI Technical Summary

Problems solved by technology

[0003] However, for some high-precision and high-performance film materials, when it is necessary to use a hard core tube to wind them up, in order not to have adverse effects on these films, higher production requirements for the core tube are put forward. Standard, which is particularly important is that the hard core tube needs to be very straight, otherwise it is easy to cause those films to be subjected to bending stress during winding and cause damage to the film

[0004] In the prior art, the production line for producing hard core tubes consists of a raw material mixer, an extruder, an extrusion die, a shaping cooling system, a tractor, a planetary cutting device and a receiving device, but in the process of such production Among them, the core tube just formed from the extrusion die has not completely hardened, and needs to be gradually cooled in the shaping cooling system to become a hard core tube. In the prior art, a vacuum setting water tank is usually used for shaping and cooling. When the core tube is cooled and shaped in the shaping cooling system, it is easy to bend due to its own gravity, so that the hard core tube produced is not completely straight, which will make the winding on the hard core tube The film on the tube is completely damaged, which affects the use of the film, so a solution needs to be proposed to solve this problem