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Electro-hydraulic hybrid oil cylinder die locking mechanism

An electro-hydraulic mixing and oil cylinder technology, which is applied in the field of electro-hydraulic mixing oil cylinder clamping mechanism, can solve the problems of large vibration of the oil cylinder, slow execution speed of the oil cylinder, and long action cycle, and achieves a small vibration, precise control position, and fast action response. Effect

Inactive Publication Date: 2016-12-07
SUZHOU LIZHU MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the existing technology, the clamping control of the injection molding machine mainly relies on the independent operation of the oil cylinder, and the control mode of the oil cylinder operation has the defect of large position control error, and its accuracy error is generally about ±1mm. Secondly, the vibration generated by the oil cylinder during the action execution process Large, in addition, the cylinder executes slowly and the action cycle is long

Method used

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  • Electro-hydraulic hybrid oil cylinder die locking mechanism
  • Electro-hydraulic hybrid oil cylinder die locking mechanism

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Embodiment Construction

[0014] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

[0015] Such as figure 1 with figure 2 An electro-hydraulic hybrid cylinder clamping mechanism shown includes an upper template 1, a lower template 2, a tie rod 3, a bottom plate 4 and an actuator. , the lower two ends, the lower template 2 is movably socketed on the pull rod 3, the upper mold 5 is fixedly installed on the lower part of the upper template 1, and the lower mold 6 is fixedly installed on the upper part of the lower template 2;

[0016] The actuator includes a cylinder 7, a piston rod 8, a filling valve 9, a drive motor 10, and a ball screw 11. Front and rear ends of the cylinder 7 are provided with a front end cover 19 and a rear end cover. The rear end of the body 7 is also provided with an exhaust port, and the front end cover 19 is provided with an oil inlet port, and one end of the liquid filling valve 9 is sealed and fixedly connec...

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Abstract

The invention discloses an electro-hydraulic hybrid oil cylinder die locking mechanism. The electro-hydraulic hybrid oil cylinder die locking mechanism comprises an upper die plate, a lower die plate, a pull rod, a bottom plate and an execution mechanism. The execution mechanism comprises a cylinder, a piston rod, a prefill valve, a drive motor and a ball screw. An oil inlet is formed in a front end cover. One end of the prefill valve is fixedly connected with the oil inlet of the front end cover in a sealing manner. The other end of the prefill valve is connected with an oil tank. A nut is fixedly arranged in the piston rod. The lower end of the ball screw and the nut are installed in a matched manner. A drive synchronous wheel and a driven synchronous wheel are connected through a synchronous belt. The front end cover is further provided with a pressure oil port P. The assigned die locking position is reached through control of the drive motor, locking protection is conducted through an oil cylinder, the error of the die locking position is about + / -0.01 mm under control of a servo motor, and therefore the beneficial effect of the accurate control position is achieved; and meanwhile the screw is small in vibration and fast in action response in the execution process.

Description

Technical field: [0001] The invention belongs to the technical field of mold clamping mechanisms for injection molding machines, and in particular relates to an electro-hydraulic hybrid cylinder mold clamping mechanism. Background technique: [0002] In the existing technology, the clamping control of the injection molding machine mainly relies on the independent operation of the oil cylinder, and the control mode of the oil cylinder operation has the defect of large position control error, and its accuracy error is generally about ±1mm. Secondly, the vibration generated by the oil cylinder during the action execution process Large, in addition, the cylinder performs slowly and the action cycle is long. Invention content: [0003] The technical problem to be solved by the present invention is to provide a mold locking mechanism combining a screw rod and an oil cylinder, in order to improve the accuracy of the mold locking position. [0004] In order to solve the above-men...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/68
CPCB29C45/68
Inventor 骆小锋
Owner SUZHOU LIZHU MACHINERY