Auxiliary extension device of through-type wringing machine

Abstract

The invention discloses an auxiliary extension device of a through-type wringing machine. The through-type wringing machine comprises a wringing felt jacket and a guard plate which is arranged on a frame. The auxiliary extension device comprises a reeling and unreeling roller and an expanding band, wherein one end of the expanding band is fixed on the reeling and unreeling roller, and the other end of the expanding band is arranged on the wringing felt jacket; the reeling and unreeling roller is driven by a driving device; and a baffle block which is matched with the guard plate is arranged on the expanding band. Compared with the conventional extension device of the through-type wringing machine, the invention has the main advantages that: the auxiliary extension device has a simple structure and a reasonable design, is easy to mount, and is flexibly and conveniently controlled; leather can be effectively extended while water is squeezed; wrinkles and folding marks on leather grains can be further eliminated; appearance is effectively improved; the area of the leather is increased, the difference between the extensibility of the leather and the extensibility in various directions is reduced, the yield of the leather is improved, and the grade of the leather is improved; and better social and economic benefits can be achieved.

Description

technical field [0001] The invention relates to a water squeezing machine, in particular to an auxiliary stretching device for a pass-through water squeezing machine. Background technique [0002] In leather processing equipment, a pass-through water squeezer is very common, and it is mainly used to squeeze out and remove part of the free water in the leather fiber tissue at one time. Conventional pass-through water squeezing machine, the main structure includes a water squeezing system and a knife roller stretching system, and the water squeezing system includes a squeezing roller 18, a first lower pressing roller 19, a second lower pressing roller 16, an upper squeezing felt cover 17 and The lower squeeze felt cover 22, the knife roll stretching system includes a stretch knife roll 21, a support roll 20 for stretching and a lower squeeze felt cover 22. Under the squeezing effect of the second lower pressure roller 16, the upper squeeze felt cover 17 and the lower squeeze ...

AI Technical Summary

Problems solved by technology

When the existing knife roller stretching system stretches the leather, the leather 23 is placed on the relatively soft lower squeeze felt cover 22. Due to the elasticity of the lower squeeze felt cover 22 and the roughness of the surface, the surface quality is poor. The leather 23 cannot be stretched effectively, thus affecting the water squeezing effect of the whole leather

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