Hydraulic control loop of cantilever-type recoiling machine pressing (ironing) roller device

Abstract

The invention discloses a hydraulic control loop of a cantilever-type recoiling machine pressing (ironing) roller device. The hydraulic control loop of the cantilever-type recoiling machine pressing (ironing) roller device comprises a hydraulic cylinder, a pipeline and a valve group, wherein the hydraulic cylinder is used for driving a pressing (ironing) roller; the valve group consists of an overflow valve, a throttling valve, a proportion pressure reduction valve, a pressure reduction valve, a second electromagnetic reversing valve, a first electromagnetic reversing valve and an oil circuit block; the hydraulic cylinder and the valve group are connected by the pipeline so as to form the hydraulic control loop. The hydraulic control loop of the cantilever-type recoiling machine pressing (ironing) roller device is reasonable, simple and reliable in design, can be used for setting different strip material compression forces, namely ironing forces, according to thickness variations of strip materials, eliminates strip material surface indentation, is obvious in strip mater ironing effect, is relatively good in quality, improves the strip material finished product rate, meets needs of users, and increases profits for enterprises further.

Description

technical field [0001] The invention belongs to the technical field of hydraulic control of aluminum strip and foil rolling mills and straightening units, and in particular relates to a hydraulic control circuit of a cantilever type coiler pressing (ironing) roller device. Background technique [0002] In the non-ferrous metal processing industry, with the increase of the thickness range of the incoming material for the aluminum strip and foil rolling mill and the straightening machine unit, during the coiling process of the aluminum strip and foil, due to the air entering, the coil will bulge, shrink and uncoil , Seriously damage the shape of the strip, resulting in a decline in the yield of the unit. In order to avoid the above phenomenon, the current practice is to use the coiler pressure roller as an ironing roller. Furthermore, the current coiler pressure roller must be able to press the head and tail of the strip and iron the strip. Due to the increase of the thicknes...

AI Technical Summary

Problems solved by technology

[0004] The control circuit of the above-mentioned pressing roller device has the following disadvantages: 1. The pressing force of pressing the strip cannot be automatically set according to the thickness change of the strip, which cannot meet the production requirements; 2. Due to the relatively large weight of the pressing roller device itself Indentation on the strip surface

Therefore, the existing hydraulic control circuit of the pressure roller device cannot meet the user's requirements for the surface quality of the strip

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