Hydraulic sand mold launching device
A push-out device and sand mold technology, which is applied in molding machines, casting molding equipment, metal processing equipment, etc., can solve problems such as easy loosening of pistons, and achieve the effects of avoiding pollution, improving molding accuracy, and prolonging service life
Inactive Publication Date: 2015-03-25
QINGDAO HOSEN HEAVY IND
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Problems solved by technology
[0003] The present invention overcomes the deficiencies of the prior art, and proposes a hydraulic sand mold push-out device. The device adopts an integral structure, and uses a polytetrafluoroethylene wear-resistant belt as a wear-resistant ring, which solves the problem that the piston is easy to loosen and prolongs the The service life of the piston High positioning accuracy, long service life, no pollution
Method used
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[0015] The following will be further described in conjunction with the accompanying drawings, not to limit the scope of the present invention.
[0016] see figure 1 and figure 2 As shown, the present invention mainly includes a cam mechanism 1, a connecting rod mechanism 2, a counter pressure plate 3, a molding chamber 4, a guide sleeve 5, a positive pressure plate 6, a front cylinder 7, a guide rod 8, a front cylinder piston 9, and a rear cylinder piston 10. Rear oil cylinder 11, oil cylinder rear stand 12, etc. The structural relationship is as follows: a positive pressure plate 6 is arranged between the molding chamber 4 and the front oil cylinder 7, and a counter pressure plate 3 is arranged on the other side of the molding chamber 4 , the counter pressure plate 3 is fixed on the link mechanism 2, a cam mechanism 1 is arranged at one end of the link mechanism 2, and two guide rods 8 are arranged at the other end of the link mechanism 2, The other end of the guide rod 8 ...
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The invention relates to a hydraulic sand mold launching device, which comprises a profiling chamber, a linkage mechanism, a front oil cylinder and a rear oil cylinder, wherein a forward pressing plate is arranged between the profiling chamber and the front oil cylinder, a reverse pressing plate is arranged on the other surface of the profiling chamber and fixed on the linkage mechanism, a cam mechanism is arranged on one end of the linkage mechanism, two guide rods are arranged on the other end of the linkage mechanism, the other ends of the guide rods are connected with the rear oil cylinder which is fixedly arranged on an oil cylinder rear vertical base. According to the launching device, the compaction, drawing and launching of a sand mold can be completed by adopting a combined hydraulic cylinder to control the opening and the closing of the profiling chamber, and oil-free lubrication bearings are adopted as the guide rods.
Description
technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a hydraulic sand mold pushing device. Background technique [0002] The composite oil cylinder used in the vertical parting molding machine is composed of two front and rear oil cylinders. Its specific actions are: when the front oil cylinder runs horizontally, the positive pressure plate device is driven to mainly complete the process of sand compaction, push out and fit, and rear mold ejection . When the rear oil cylinder runs horizontally, it drives the counter pressure plate device, which is mainly used for sand compaction, front mold ejection, cavity closing and other processes. The existing oil cylinder piston adopts a combined structure, the wear-resistant ring is made of copper alloy, and the guide rod and guide sleeve of the oil cylinder are made of copper sleeves. Because the device runs fast and changes direction frequently, it is easy to ...
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IPC IPC(8): B22C17/00
Inventor 王起森
Owner QINGDAO HOSEN HEAVY IND