Hydraulic control system and control method of fully automatic hydraulic oil press

A hydraulic control system and hydraulic oil pressing technology, which are applied to the components of fluid pressure actuation systems, presses, manufacturing tools, etc., can solve the problems of undocumented hydraulic control diagrams, error-prone operation by workers, and inconvenience in taking out the pressed cake, etc. The effect of reduced mechanical labor, low cost and high reliability

Active Publication Date: 2021-11-26
东方红集团(湖北)粮食机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing oil presses are inconvenient to take out the pressed cake, and the labor intensity is relatively high.
The existing hydraulic control usually adopts manual control, which is easy to make mistakes and has high labor intensity. Chinese patent document CN203063145U, a disc hydraulic vertical oil press, adopts the scheme of high and low pressure relief combined valve and manual reversing valve. However, the combined high and low pressure relief valve in this scheme is a very useful device, and the corresponding hydraulic control diagram is not recorded in this document, which makes this scheme difficult to realize

Method used

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  • Hydraulic control system and control method of fully automatic hydraulic oil press
  • Hydraulic control system and control method of fully automatic hydraulic oil press
  • Hydraulic control system and control method of fully automatic hydraulic oil press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] like Figure 2~7 Among them, a fully automatic hydraulic oil press has the following structure: it includes a frame 1, a vertically installed main hydraulic cylinder 5 is arranged in the frame 1, and a through-structure material barrel 9 is arranged below the main hydraulic cylinder 5, and the material barrel 9 is provided with a pressure head 7 sliding along the inner wall of the material barrel 9, the pressure head 7 is connected with the main hydraulic cylinder 5, an oil receiving pan 10 is arranged at the bottom of the material barrel 9, and a lifting hydraulic pressure is also fixed on the frame 1. Cylinder 3, the lifting hydraulic cylinder 3 is connected with the material barrel 9 through the boom 4, so as to lift the material barrel 9 after the oil pressing is completed, so as to facilitate the extraction of the pressed cake;

[0057] The oil receiving pan 10 is slidably connected to the base chute 33, and the unloading driving cylinder 27 is arranged between the...

Embodiment 2

[0094] On the basis of embodiment 1, a kind of automatic control method that adopts above-mentioned automatic hydraulic oil press hydraulic control system comprises the following steps:

[0095] S01. Control the first switch valve 13 to supply oil to the first switch valve 14, and the first switch valve 14 switches to supply oil to the lower cavity of the main hydraulic cylinder 5, so that the pressure head 7 is lifted; preferably the second switch valve It is also possible for the valve 20 to be in a conducting state, but also to be in a non-conducting state.

[0096] S02, the first switching valve 13 is switched to supply oil to the third switching valve 40, the third switching valve 40 is opened, the fourth switching valve 22 is straight through, and the piston rod of the feeding tank drive cylinder 28 is stretched out, so that the rotating feeding tank 34 Rotate to the top of the barrel 9, the fourth reversing valve 22 to the cut-off position;

[0097] The fifth reversing v...

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Abstract

The invention provides a hydraulic control system and control method for a fully automatic hydraulic oil press. The outlet of the hydraulic pump of the hydraulic station is connected to the first switching valve, and the first switching valve is respectively connected to the first switching valve and the second switching valve through pipelines. Valve connection; the second reversing valve is connected with the cavity of the lifting hydraulic cylinder for lifting through a pipeline, and the pipeline between the second reversing valve and the first switching valve is provided with a pipeline for overflow, and the overflow There is a second relief valve on the pipeline, and a pipeline for oil return on the second reversing valve; the first reversing valve is connected to the two ends of the main hydraulic cylinder through two pipelines, and the first reversing valve The reversing valve is provided with a pipeline for oil return; the outlet of the hydraulic pump is provided with a first relief valve. By adopting the above scheme, the fully automatic oil pressing operation of the vertical oil press can be realized. Significantly reduce the mechanical labor of operators and improve production efficiency, especially suitable for forming automated production lines.

Description

technical field [0001] The invention relates to the field of oil press equipment manufacturing, in particular to a hydraulic control system and control method for a fully automatic hydraulic oil press. Background technique [0002] At present, most of the vertical hydraulic oil presses on the market are small and manual, and there are relatively few fully automatic vertical hydraulic oil presses, such as a vertical high-efficiency oil press recorded in Chinese patent document CN 207657241 U, recorded in CN102649320B A hydraulic vertical oil press, etc. But existing oil presses are all inconvenient to take out pressed cake, and labor intensity is higher. The existing hydraulic control usually adopts manual control, which is easy to make mistakes and has high labor intensity. Chinese patent document CN203063145U, a disc hydraulic vertical oil press, adopts the scheme of high and low pressure relief combined valve and manual reversing valve. However, the combined high and low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/20F15B13/07F15B21/02B30B15/16B30B9/02
CPCB30B9/02B30B15/16F15B11/20F15B13/07F15B21/02
Inventor 余楚华杨学华
Owner 东方红集团(湖北)粮食机械股份有限公司
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