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Supplementary volume equal volume displacement clamping device

A clamping device and volumetric technology, applied in presses, manufacturing tools, etc., can solve problems such as limited structural size ratio, long structural size, uneven force, etc., to avoid hidden dangers of fracture, short boosting time, fast response effect

Inactive Publication Date: 2017-09-12
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the problems of high energy consumption, long structural size, uneven force bearing and limited structural size ratio in the existing mold clamping device, the purpose of the present invention is to provide a simple and reasonable structure, uniform force, stable and reliable use, and a wide range of applications. An adaptable clamping device that can realize "equal volume replacement"

Method used

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  • Supplementary volume equal volume displacement clamping device
  • Supplementary volume equal volume displacement clamping device
  • Supplementary volume equal volume displacement clamping device

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as Figure 1 ~ Figure 3As shown, the supplementary volume type equal-volume displacement mold clamping device of the present invention is composed of a movable platen 1, a fixed platen 3, a clamping cylinder, a supplementary cylinder 4 and a communication stop valve 6, and the clamping cylinder includes a cylinder body 10, a piston 8 and The piston rod 2 and the clamping cylinder are set on the fixed platen 3; the piston 8 is set in the cylinder body 10, and the cylinder body 10 is divided into a rod chamber 7 and a rodless chamber 11; one end of the piston rod 2 is connected with the piston 8, and the piston rod 2. The other end is connected with the movable template 1, and the piston rod 2 passes through the rod chamber 7 and the fixed template 3; the supplementary oil cylinder 4 is arranged on the upper part of the fixe...

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Abstract

The invention relates to the technical field of a mold closing mechanism, and provides a volume supplementary type mold locking device adopting equivalent volume replacement and having wider using adaptability. The device comprises a movable template, a fixed template, mold locking oil cylinders, a supplementing oil cylinder and a communicating and stopping valve, wherein each mold locking oil cylinder comprises a cylinder body, a piston and a piston rod. Hydraulic oil in the supplementing oil cylinder is used for supplementing volumes of parts occupied by the piston rods in rod cavities, real equivalent volume replacement is realized, that is, the hydraulic oil is not required to return to an oil tank during mold closing, oil suction from the oil tank is not required during mold opening, so that the energy consumption is low, the pressure rising time is short, the reaction is fast, and the device has the advantages of energy saving and high efficiency; the device is simple in structure, small in size, high in mold opening, closing and locking performance and precision, uniform in stressing and stable and reliable to use, and is applicable to various specifications and models of direct-press type mold closing mechanisms.

Description

technical field [0001] The invention relates to the technical field of mold clamping devices, in particular to a mold clamping device for injection molding machines, die-casting machines and hydraulic presses. Background technique [0002] Compared with the traditional three-plate mold clamping device, the two-plate mold clamping device eliminates the tail plate, and the clamping force directly acts on the two templates of the fixed mold, which can save a lot of materials and floor space, and the cost is low . In addition, the mold closing force line of the two-plate clamping device is short, and the force balance of the tie rods cannot be replaced by other structures, which is beneficial to the improvement of production accuracy. There are two main types of two-plate clamping devices: compound type and direct pressure type. The composite two-plate clamping device is mainly used in mainframes, and its technology is relatively mature. The direct pressure two-plate mold cla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/67B22D17/26B30B15/02
CPCB22D17/266B29C45/6764B30B15/02
Inventor 王建
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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