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Ejection device for micro injection molding machine

A technology of ejector and injection molding machine, which is applied in the field of injection molds, can solve the problems of complex results, small force, and additional air source, etc.

Inactive Publication Date: 2019-03-08
嘉兴市六和塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the hydraulic ejection device is convenient to adjust the speed, position and stroke, the result is complicated and the force is small
Although the method of using compressed air to blow out plastic products between air pressures will not leave marks on the plastic products, it is necessary to set air passages and air holes on the mold, and it is necessary to add an air source

Method used

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  • Ejection device for micro injection molding machine
  • Ejection device for micro injection molding machine

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] Examples, see e.g. Figure 1 to Figure 2 As shown, a kind of ejector device of micro-injection molding machine comprises the main body 11 of injection molding machine, fixed template 12, a plurality of cross bars 13 and movable template 14, and fixed template 12 is fixed on the right side of main body 11 by cross bar 13, and movable The template 14 is slidingly connected on the cross bar 12 and is positioned between the main body 11 and the fixed template 12. The hydraulic system of the injection molding machine can drive the movable template 14 to move on the cross bar 13; the fixed template 12 is fixed with a fixed mold 21, a movable A movable mold 22 is fixed on the template 14, and the left end surface of the fixed mold 21 and the right end surface of the movable mold 22 form a cavity 201 consistent with the outline of the product, and a gate 211 communicating with the cavity 201 is formed on the fixed mold 21. The movable mold 22 is formed with two thimble holes 22...

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Abstract

The invention discloses an ejection device for a micro injection molding machine. The ejection device comprises an injection molding machine body, a fixed template, a plurality of cross bars and a movable template; a fixed mold is fixed on the fixed template, a movable mold is fixed on the movable template, the left end surface of the fixed mold and the right end surface of the movable mold form acavity conforming to a product in contour, the movable mold is provided with two thimble holes communicating with the cavity, thimbles are connected into the thimble holes in a sleeved manner, each thimble includes a head, a connecting rod, a boss and an ejector rod, the connecting rod is sleeved with a spring in a connected manner, a driving cavity is molded in the movable template, a slider isarranged in the driving cavity, a U-shaped hole is formed in the slider and is filled with a plurality of steel balls, the ejector rod is inserted into the U-shaped hole, and the left side of the slider is provided with an ejection column. The ejection device does not require independent driving power, the ejector rod is pushed by the relative movement of a non-moving member and a moving member inthe mold opening process, and the plastic product is ejected out and detached.

Description

Technical field: [0001] The invention relates to the technical field of injection molds, in particular to an ejector device of a miniature injection molding machine. Background technique: [0002] The ejector device is a device that cooperates with the mold in the opening and closing part of the injection molding machine to realize the function of ejecting and dropping plastic products. Commonly used ejection devices are mostly equipped with independent driving power, such as hydraulic pressure or air pressure. Although the hydraulic ejection device is convenient to adjust the speed, position and stroke, the result is complicated and the force is small. Although the method of using compressed air to blow out plastic products between air pressures will not leave marks on the plastic products, it is necessary to set air passages and air holes on the mold, and it is necessary to add an air source. Invention content: [0003] The purpose of the present invention is to overco...

Claims

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Application Information

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IPC IPC(8): B29C45/40
CPCB29C45/4005
Inventor 翁国峰
Owner 嘉兴市六和塑料制品有限公司
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