Ejection structure of injection mold
A technology of injection mold and back mold, which is applied in the field of ejection structure of injection mold, which can solve the problems of low demoulding efficiency and cumbersome demoulding operation, and achieve the effects of simple ejection, improved safety and improved efficiency
Pending Publication Date: 2020-09-18
浙江泰欣塑料模具股份有限公司
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Problems solved by technology
When the above-mentioned injection molded parts are demolded, the demoulding operation is relatively cumbersome, resulting in low demoulding efficiency, so there is room for improvement
Method used
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Embodiment Construction
[0017] combine Figure 1 to Figure 2 The ejection structure of the injection mold of the present invention will be further described.
[0018] An ejection structure of an injection mold includes a front mold and a rear mold, the front mold includes a front bottom plate 1 and a front mold base 2, and the front mold base 2 includes a front template 22 and a front mold core 21 installed in the front template 22; The mold includes a rear mold base 3, a backing plate 4, a fixed plate 5, a support plate 6 and a rear bottom plate 8 arranged in sequence. The support plate 6 has two pieces and forms a moving cavity 7 with the fixed plate 5 and the rear bottom plate 8. The front mold A cavity is formed between the frame 2 and the rear mold frame 3 . The four top corners of the injection mold are provided with guide rods 14 , and the front mold base 2 and the rear mold base 3 are both connected with guide blocks slidably matched with the guide rods through bolts.
[0019] The ejection ...
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The invention discloses an ejection structure of an injection mold. The ejection structure comprises a front mold, a rear mold, side slider insert pin mechanisms, interlocking mechanisms and ejectionmechanisms, wherein the side slider insert pin mechanisms comprise inclined guide rods, sliders and insert pins, the inclined guide rods are arranged on the front mold, the sliders are in sliding fitwith the rear mold and are in guide fit with inclined guide holes, the insert pins are arranged on the sliders, the ejection mechanisms comprise ejection pin plates and ejection pin ejector sleeve assemblies, the interlocking mechanisms comprise reset springs, limiting blocks, first limiting rods and second limiting rods, the reset springs are arranged between the ejector pin plates and a base plate of the rear mold, the first ends of the first limiting rods are fixed on the side wall of the front mold, the second ends of the first limiting rods extend to the side wall of the rear mold, the limiting blocks are fixed on the side walls of the ejection pin plates, the first ends of the second limiting rods are rotationally connected to the side wall of a fixing plate, the second ends of the second limiting rods are arranged in a swinging mode, and when the front mold and the rear mold are in the mold opening state, the side walls of the first limiting rod are disengaged from abutting of the second limiting rods. The ejection structure has the characteristics of convenience in demolding and high demolding efficiency.
Description
technical field [0001] The invention relates to the field of molds, and more particularly to an ejection structure of an injection mold. Background technique [0002] Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of some complex-shaped parts. Specifically, it refers to the injection of the heated and melted plastic into the cavity of the injection molding machine at high pressure, and after cooling and solidification, a molded product is obtained. [0003] In the prior art, when injecting an injection molded part with a groove or an opening on the side, it is necessary to set a side slide bar insert. Open your mouth. When the molded injection part is demolded, it is necessary to open the mold first, then use the side sliding mechanism to slide the slider insert out of the injection part, and finally us...
Claims
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IPC IPC(8): B29C45/40B29C45/33
CPCB29C45/4005B29C45/33
Inventor 刘展
Owner 浙江泰欣塑料模具股份有限公司