Thermal insulation pipe threading machine

Abstract

The invention discloses a thermal insulation pipe threading machine which comprises a machine bed and an electric control system, wherein a correcting mechanism, a feeding mechanism, a cutting-off mechanism, a threading feeding mechanism and a sleeve pipe fixing seat are arranged on the machine bed; the feeding mechanism comprises driving feeding wheels and driven feeding wheels; when the driven feeding wheels get close to the surfaces of the driving feeding wheels, the driven feeding wheels press a pipe against the surfaces of the driving feeding wheels, the driving feeding wheels exert a friction force on the side wall of the pipe, and the pipe begins to be conveyed; otherwise, when the driven feeding wheels get away from the driving feeding wheels, the pipe leaves the surfaces of the driving feeding wheels, the friction force that the driving feeding wheels exert on the side wall of the pipe disappears, and the pipe stops being conveyed. The thermal insulation pipe threading machine has the following beneficial effects: (1) through arrangement of the correcting mechanism, direct feeding of a coiled pipe can be realized; (2) the thermal insulation pipe threading machine is compact in structure and does not need the setting of feeding stoke;(3) the thermal insulation pipe threading machine has a plurality of feeding supporting points so that the pipe is conveyed more stably; and (4) the thermal insulation pipe threading machine has good synchronism and can realize continuous feeding.

Description

technical field [0001] The invention relates to the field of air-conditioning accessories manufacturing equipment, in particular to a pipe threading machine for heat preservation pipes. Background technique [0002] Ordinary household air conditioner heat exchangers are divided into indoor units (installed indoors - evaporators) and outdoor units (installed outdoors - condensers). The internal and external units are connected by copper connecting pipes to circulate high-temperature and high-pressure refrigerant. Since the copper connecting pipe conducts heat quickly, it is prone to heat loss during the process of transferring refrigerant. Therefore, a layer of insulation pipe is generally protected on the outer surface of the copper connecting pipe, and the insulation pipe is made of PE material or rubber-plastic material, so as to play the role of heat preservation, isolation and protection. [0003] Since the insulation pipe is a hollow cylinder, it is necessary to inser...

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