Forming device for bellows

Abstract

The invention discloses a corrugated pipe forming device which comprises a first support (1a), a main cross beam (2), a driving roller and a driving system (5). The first support (1a) is fixed to a machine frame (9), one end of the main cross beam (2) is installed on the first side of the first support (1a), the other end of the main cross beam (2) is provided with an end plate (3), one end of the driving roller is connected to the first support (1a) in a pivoted mode, the other end of the driving roller is connected to the end plate (3) in a pivoted mode, the driving system (5) is in transmission connection with the driving roller, and the distance between the center axis of the driving roller and the center axis of the main cross beam (2) can be adjusted. Corrugated pipes of various specifications can be manufactured through the corrugated pipe forming device.

Description

technical field [0001] The invention relates to a forming device for bellows. Background technique [0002] The corrugated pipe is usually formed by winding and compounding the molten plastic strip and the corresponding metal profile layer by layer in a spiral manner. The plastic strip can include a plastic inner sheet for joining the inner wall of the metal profile and a plastic inner sheet for bonding Jointed plastic outer sheets, this type of corrugated pipe is widely used in various scenes of social production and life due to its advantages of light weight, high strength, and aging resistance, such as drainage pipes in cities and drainage in residential areas Pipeline. [0003] A typical bellows forming device is disclosed in the patent application with the notification number CN201329670Y, which includes a support frame, a support structure, a fixed main support roll, a movable main support roll, an auxiliary support roll, etc., a support structure and a fixed main sup...

AI Technical Summary

Problems solved by technology

Similar forming devices generally exist. When the size of the forming device is large (that is, when a large bellows needs to be manufactured), the size of the main support roll and the support structure are correspondingly large, and the column is only on the main support roll and support. One end of the structure is supported, and the other end of the main support roller and the support structure is inclined downward due to gravity, which causes the forming device to fail to meet the process requirements for producing large-sized corrugated pipes, and causes corrugations formed by this type of forming device The roundness of the tube is poor, and the quality cannot be guaranteed

In addition, similar forming devices also have the problem that each set of corrugated pipes can only produce one specification. need to invest a lot of money

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