Automatic control system for bellow forming apparatus
An automatic control system and molding device technology, applied in the field of bellows expansion joint manufacturing, can solve the problems of unstable bellows molding quality, scrapped bellows, and high molding pressure, improve molding accuracy and yield, realize automatic control, The effect of improving molding efficiency
Active Publication Date: 2019-01-04
LUOYANG SUNRUI SPECIAL EQUIP
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Problems solved by technology
If the molding pressure is not properly controlled, the waveform parameters of the bellows will not meet the requirements or even be scrapped
If the molding pressure is too low, the waveform does not meet the design requirements
The molding pressure is too high, causing the straight edge part to come out of the mold cover, and the bellows is scrapped
[0005] Existing molding technology requires high skill level of operators, resulting in unstable bellows molding quality
Method used
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[0017] The present invention is described with reference to the accompanying drawings and specific embodiments. However, the present invention is not limited to the bellows forming device, and can be extended and applied to other similar working occasions.
[0018] An automatic control system for a corrugated pipe forming device. The corrugated pipe forming device mainly includes a forming body for forming and fixing an unformed corrugated pipe and a hydraulic press 1 for compacting and forming the forming body. The forming body mainly includes a corrugated pipe blank 4 , the middle mold sheet 3, the upper mold cover 2 and the hydraulic pump 9, between the middle mold sheet 3 and between the middle mold sheet 3 and the upper mold cover 2, and the lower mold cover 5, an initial spacer 11 is placed, and the upper mold cover 2 and the lower mold cover 5 The lower mold covers 5 are respectively arranged on both axial sides of the bellows blank 4, and the outer side of the bellows b...
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An automatic control system for a bellow forming apparatus mainly comprises a forming body for forming and fixing an unformed bellow and an oil press for pressing and forming the forming body. The forming body mainly comprises a bellow blank, middle die pieces, an upper die cover and a hydraulic pump, initial pads are arranged between the middle die pieces and between the middle die pieces and theupper die cover and the lower die cover, and the automatic control system mainly comprises an industrial control computer, a displacement sensor and a pressure sensor. The multi-wave hydroforming ofthe bellows under the automatic control of the hydraulic pump is tested by the sensors and controlled by the industrial control computer. The operation is simple, the forming precision of bellows is high, and the finished product rate is high.
Description
technical field [0001] The invention belongs to the technical field of manufacturing bellows expansion joints, in particular to an automatic control system for a bellows forming device. Background technique [0002] Existing corrugated pipe forming generally has three methods: hydraulic forming, stamping bulging and rolling forming. Among the three methods, rolling forming has the greatest damage to the bellows material, the most serious thinning of the local part of the bellows, and the residual stress of the bellows forming The largest, followed by stamping and bulging, and the smallest in hydroforming. Therefore, the commonly used forming method is hydraulic forming. Hydroforming is divided into multi-wave one-time forming and single-wave continuous forming. The invention is mainly used for multi-wave one-time molding of corrugated pipes. [0003] The existing bellows hydraulic multi-wave forming device is mainly composed of a hydraulic press, an upper mold cover, a mi...
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IPC IPC(8): B21D26/041
CPCB21D26/041
Inventor 闫廷来曹红芍李跃宗
Owner LUOYANG SUNRUI SPECIAL EQUIP