Quick-separating roller way conveying line adopted after spraying for direct-buried heat preservation pipe production line

Abstract

The invention discloses a quick-separating roller way conveying line adopted after spraying for a direct-buried heat preservation pipe production line. The quick-separating roller way conveying line comprises a base, wherein a lifting rotating wheel set and a fixing machine frame are arranged at the upper end of the base, a first fixing rotating wheel set and a second fixing rotating wheel set arearranged on the fixing machine frame, and travelling oil cylinders are arranged on the two sides of the base in parallel; the lifting rotating wheel set comprises a lifting machine frame connected tothe base through a hydraulic four-bar lifting device, a fixing block is fixedly arranged on the lifting machine frame, and supporting plates are symmetrically hinged to the two sides of the fixing block; the ends, away from the fixing block, of the supporting plates are fixedly connected to one ends of first hydraulic rods, and the other ends of the first hydraulic rods are fixedly connected to the lifting machine frame; and first driven rubber wheels are fixedly arranged on the supporting plates. According to the quick-separating roller way conveying line adopted after spraying, the whole body of the conveying line can be moved so that the quick-separating effect can be realized; and meanwhile, one set of lifting rotating wheels are arranged, the height of pipes is effectively adjusted,and a polyurethane layer is prevented from being damaged.

Description

technical field [0001] The invention belongs to the technical field of production equipment, and in particular relates to a fast-spraying raceway conveying line used in a direct-buried thermal insulation pipe production line. Background technique [0002] Since the birth of polyurethane synthetic materials in the 1930s, polyurethane thermal insulation pipes have been rapidly developed as an excellent thermal insulation material. It is used in various pipelines such as heating, refrigeration, oil transportation and steam transportation. At present, polyurethane spray coating and polyethylene winding direct buried insulation pipes have strong market development space and promotion value. However, in the process of production There are many problems in it, for example, in the patent No. 2015200390271 about the quick-split raceway spraying winding direct-buried insulation pipe production line, the spraying production line includes the raceway conveyor line before spraying and th...

AI Technical Summary

Problems solved by technology

[0002] Since the birth of polyurethane synthetic materials in the 1930s, polyurethane thermal insulation pipes have been rapidly developed as an excellent thermal insulation material. It is used in various pipelines such as heating, refrigeration, oil transportation and steam transportation. At present, polyurethane spray coating and polyethylene winding direct buried insulation pipes have strong market development space and promotion value. However, in the process of production There are many problems in it, for example, in the patent No. 2015200390271 about the quick-split raceway spraying winding direct-buried insulation pipe production line, the spraying production line includes the raceway conveyor line before spraying and the fast-spraying raceway production line after spraying. After the end of the pipe spraying is finished, after the end of the pipe exits the spraying room, immediately increase the speed to disengage from the next pipe. This means of rapid separation by increasing the speed greatly improves the shear force between the pipe and the runner. It will cause some damage to the polyurethane; in addition, when the sprayed pipe enters the fast-spraying raceway production line after spraying, the polyurethane just after spraying is relatively soft. As the pipe end continues to move forward, the friction between the pipe end and the runner increases due to gravity, and the polyurethane is easily damaged.

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