Mechanical expanding shaft device

Abstract

The invention discloses a mechanical expanding shaft device, and belongs to the field of expanding shafts. The mechanical expanding shaft device comprises a core shaft, a pushing block, a supporting tube, a sleeve, a guide mechanism and an expanding shaft mechanism, wherein the pushing block is connected to the left end of the core shaft through threads, and axially moves on the core shaft; the core shaft can be rotatably arranged on the center of the supporting tube; the pushing block is fixedly arranged at the left end of the sleeve; the sleeve sleeves the outer side of the supporting tube;the sleeve and the supporting tube axially move oppositely; the guide mechanism comprises a radial guide rod, a linear bearing and a mounting plate; and the expanding shaft mechanism comprises an inclined panel, an expanding block, a supporting plate and a movable wheel. The mechanical expanding shaft device is compact in structure, is stable in performance, is suitable for large-scale production,is low in cost, is economical and durable, is simple in operation, is high in efficiency, is free of special requirement on an operation site, is wider in range of application, can greatly improve working efficiency and reduces waste.

Description

technical field [0001] The invention relates to the field of shaft expansion, in particular to a mechanical shaft expansion device. Background technique [0002] At present, the expansion shaft installation method is adopted for the winding and unwinding of flexible substrates in the coating, slitting, printing, rewinding, compounding, papermaking, plastics and other industries; it is characterized by convenient loading and unloading and high production efficiency. There are two types of existing shaft expansion devices, taking the supporting use of large shaft paper base paper as an example: [0003] 1. Standard iron core plug: the advantages are light weight, easy loading and unloading, but because there is a large gap between the large axis paper and the base paper tube, the paper tube is easily crushed when the large axis paper is rotated and unrolled, which is easy to cause the paper tube Broken and unable to be reused, the waste is very serious. [0004] 2. Inflatabl...

AI Technical Summary

Problems solved by technology

However, the structure is complicated, the manufacturing cycle is long, the processing technology is high, the production cost is high, and the self-heavy weight requires special equipment for loading and unloading. It is inconvenient to load and unload in some places with small spaces, and there must be a high-pressure air source on site to carry out the air expansion shaft. Inflatable and deflated, inconvenient for maintenance and storage

Images