Oil electric heating drawing device of PET packing belt

Abstract

The invention discloses an oil electric heating drawing device of a PET packing belt. The oil electric heating drawing device comprises a drawing device rack, roller body assemblies, a speed reducer and a motor, wherein a plurality of roller body assemblies are installed on the drawing device rack, the motor is in driving connection with the roller body assemblies by virtue of the speed reducer, the roller body assemblies comprise center shafts and heating roller bodies which are integrally in a cylindrical structure, cylinder walls are hollow sealed cavities, the heating roller bodies sleeve the center shafts, the cavities of the cylinder walls of the heating roller bodies are filled with conduction oil, and heating pipe mounting holes which are used for placing heating pipes are formed in the cavities of the cylinder walls of the heating roller bodies. According to the oil electric heating drawing device of the PET packing belt, the conduction oil sealed in the roller bodies is heated by utilizing the heating pipes, and the conduction oil does not need to circulate, so that the phenomenon of oil leakage is eliminated, the stable and uniform temperature of the whole roller bodies is guaranteed, and the drawing quality of the packing belt is guaranteed.

Description

technical field [0001] The invention relates to the technical field of packing belt traction devices, in particular to an oil-electric heating traction device for PET packing tapes. Background technique [0002] Due to its excellent physical and chemical properties, PET strapping is widely used as a substitute for steel straps in more and more occasions. The most critical process in the molding process of PET strapping is the stretching link, which uses stretching traction Roller (provides stretching power) for processing. Due to the characteristics of PET material, the stretching time required for PET packing tape is longer than that of conventional plastic packing tape, and heat loss will occur during the stretching process. The lower temperature affects the stretching effect, so the PET strapping needs to be stretched stably at high temperature. [0003] At present, there are two main solutions for the traction roller of PET strapping production equipment on the market, ...

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Problems solved by technology

[0005] The technical problem to be solved and the technical task proposed by the present invention are to improve the existing technology, provide an oil-electric heating traction device for PET packing belt, and solve the problem of oil leakage or It is a situation where the heating temperature fluctuates greatly and unevenly, which affects the stretching quality of PET packing belts and makes maintenance difficult.

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