RU1812110C - Rolls for continuous processing of polymeric material - Google Patents

Abstract

Usage: when mixing and masticating polymer compositions on rollers. SUMMARY OF THE INVENTION: one roll is made of an inner case and a hollow outer cylindrical case. Both cases are coaxially mounted. The hollow body is mounted on the inner body at its end. The outer surface of the hollow body forms a single working surface with the outer surface of the inner body. 2 ill.

Description

The invention relates to equipment for processing polymer materials, and in particular to continuous rollers for mixing and plasticizing polymer compositions.

The purpose of the invention is to provide temperature control of the polymer material when it is removed from the rollers.

Figures 1 and 2 show rollers. The rollers comprise rolls 2 and 3 mounted on the frame 1 and installed with the possibility of adjusting the working gap between them. One of the rolls, for example, roll 2, is made in the form of an inner housing 4 and a hollow outer cylindrical housing 5, which is mounted on the housing 4 from its end. The outer surface 6 of the housing 5 forms with the outer surface 7 of the housing 4 a single working surface 8. The housing 4 has a rotation drive 9, and the housing 5 has a rotation drive in the form of a gear gear 10 interacting with a ring gear 11 made on the housing 5. The housing 5 is mounted on bearings 12, pressed by a ring 13. The sealing of the housings 4 and 5 is provided by labyrinth seals. : To prevent material from leaking outside the roll gap, the rolls 2 and 3 are provided with restrictive arms 15. The rollers have a heat supply system (not shown conventionally in Fig.).

Rollers work as follows.

The rollers 2 and 3 are driven in rotation towards each other. In the processing of polymer material, it is loaded from one end of the rolls and continuously transferred to the other. The polymer rotates and translates along the forming rolls and is continuously sampled on the other side of the rolls in a portion of the hollow outer cylindrical body 5.

The movement of material along the forming roll is ensured by the pressure difference in this direction.

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Due to the proposed roll design, namely the independent drive of the hollow outer casing 5, a variable friction value is provided at the material pick-up area. The rotation of the hollow outer casing 5 is carried out from the gear 10 ..;

Claims (1)

By varying the friction in the area where the polymer is removed from the rollers (with constant friction in the main part of the roll gap), the temperature of the processed material can be controlled before it is fed to the calender. Next, the cycle repeats. SUMMARY OF THE INVENTION Rollers for the continuous processing of polymeric materials containing 0 5 rolls mounted on the frame, at least one of which is made of coaxially mounted inner casing and hollow outer cylindrical casing, heat supply means for the rolls and individual rotation drives of the casings, characterized in that, in order to ensure temperature control of the polymer material when it is removed from the rollers , the hollow body is mounted on the inner body at its end, and the outer surface of the hollow body forms a single working surface with the outer surface of the inner body s.