Forced return structure in the mold
A technology of in-mold and male template, applied in the field of forced return structure in the mold, can solve the problems of high cost, difficult processing, easy failure of forced return structure, etc., and achieve the effect of low cost and simple processing
Active Publication Date: 2016-10-26
MITAC PRECISION TECH(KUNSHAN) CORP
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Problems solved by technology
[0006] Therefore, the object of the present invention is to provide a forced return structure in the mold to solve the problems that the existing forced return structure is prone to failure, difficult to process and high in cost
Method used
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[0027] Please refer to figure 2 , image 3 , figure 2 It is shown as a three-dimensional structural schematic diagram of a preferred embodiment of the forced return structure in the mold of the present invention, image 3 It is a schematic diagram of an exploded structure of a preferred embodiment of the forced return structure in the mold of the present invention.
[0028] In order to achieve the above purpose, the present invention provides a forced return structure in the mold. The mold has a male template 200, a female template 201, an upper ejector plate 202, and a lower ejector plate 203. The forced return structure includes:
[0029] A guide sleeve 204, which is fixed in the male template 200, and the inner wall of the guide sleeve 204 has a guide groove 205 near the bottom end;
[0030] A non-stop sleeve 206, whose top end is fixed on the upper ejection plate 202, and whose bottom end is movably arranged in the guide sleeve 204. through hole 207;
[0031] A ball...
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The invention discloses a forced return structure in a mold. The mold is provided with a male mold plate, a female mold plate, an upper ejector plate and a lower ejector plate, and the forced return structure comprises a guide sleeve, a stop sleeve, a rolling ball and a push needle, wherein the guide sleeve is fixed in the male mold plate, and a guide groove is formed in the position, close to the bottom end, on the inner wall of the guide sleeve; the top end of the stop sleeve is fixed on the upper ejector plate, the bottom end of the stop sleeve is movably arranged in the guide sleeve, and a through hole penetrating through the wall of the stop sleeve is formed in the position which is close to the top end of the stop sleeve; the rolling ball is arranged in the through hole, and the rolling ball is matched with the guide groove in shape; and the top end of the push needle is fixed on the female mold plate, and the bottom end of the push needle is movably arranged in the stop sleeve. Due to the adoption of the rolling ball structure, the failure of the structure is less prone to occur; and furthermore, the machining is simple, and the cost is low.
Description
【Technical field】 [0001] The invention relates to a forced return structure, in particular to a forced return structure in a mold. 【Background technique】 [0002] see figure 1 , figure 1 It is a schematic diagram of a forced return structure in a mold in the prior art. When molds are used for production, sometimes sliders are set on the master template 100 to form the corresponding structure, and ejector pins are used for ejection. For such cases, the usual figure 1 structure, to force the upper ejector plate 101 and the lower ejector plate 102 to return first, and avoid the collision between the ejector pin and the slider caused by the first closing of the male template 103 and the female template 100 during mold closing. Specifically, the structure includes a push pin 104, a guide sleeve 105, a through-stop sleeve 106, and a pressure plate 107; The through-stop sleeve 106 is movable in the guide sleeve 105, the top end of the through-stop sleeve 106 has a guide portio...
Claims
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IPC IPC(8): B29C33/44
Inventor 吴永兴
Owner MITAC PRECISION TECH(KUNSHAN) CORP