Ejection protection mechanism for die ejector pin
A technology for protecting mechanism and die thimble, which is applied to manufacturing tools, forging/pressing/hammering machinery, forging/pressing/hammer devices, etc. The effect of thimble fracture
Pending Publication Date: 2020-07-28
东风科技(武汉)有限公司
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Problems solved by technology
This will easily lead to, when producing slender products, the thimble is easy to break and the product is damaged
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] refer to figure 1 , a mold thimble ejection protection mechanism, including a rear thimble 9, a thimble protective sleeve 8, an thimble 5, a back seat 7, a mold cavity 2, and a cushion mold 6, a top mold 4, and a mold shell 3 located in the mold cavity 2 , one end of the back thimble 9 is against the rear end of the back push rod 10, and the other end is connected with the thimble 5.
[0020] The front end of the back push rod 10 abuts against the end ...
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The invention discloses an ejection protection mechanism for a die ejector pin. The ejection protection mechanism comprises a rear ejector pin, an ejector pin protective sleeve, an ejector pin, a rearseat, a die cavity, a cushion type die, an ejection die and a die shell, wherein the cushion type die, the ejection die and the die shell are located in the die cavity; the rear ejector pin is connected with one end of the ejector pin, and the other end of the ejector pin abuts against a machined part; and the ejector pin is located in the ejector pin protective sleeve and the ejection die, the cushion type die and the ejection die are tightly attached to the periphery of the ejector pin protective sleeve for stabilization, the die shell is arranged among the cushion type die, the ejection die and the die cavity, and the side portion of the die cavity is connected with the rear seat. The whole part of the ejector pin is located in the ejector pin protective sleeve and the ejection die, the periphery of the ejector pin is tightly wrapped and completely moves in the ejector pin protective sleeve, and no radial displacement space is provided so that the ejector pin cannot be broken; andthe ejection protection mechanism for the die ejector pin is simple in structure and ingenious in design, the problem that an ultra-long-and-thin product loses efficacy in the forming process of coldheading equipment is fundamentally solved, the ejector pin is not prone to break, and the product quality is guaranteed.
Description
【Technical field】 [0001] The invention relates to the technical field of mold equipment, in particular to a mold thimble ejection protection mechanism suitable for the production of slender products. 【Background technique】 [0002] Cold heading equipment produces slender products, and the thimble is relatively slender, so it is easy to break and fail during the production process. Because when the ejector mechanism of general cold heading equipment is working, only two ends of the thimble on it are constrained, and there is a large gap between the sliding sleeve and the pad. For products with long parts, during the production process, How long the rod portion is, the free length of the thimble is just how long. Like this just easily causes, when producing slender product, thimble is easily broken, and product is damaged. 【Content of invention】 [0003] In view of this, in order to overcome the deficiencies of the prior art, the present invention provides a mold thimble e...
Claims
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IPC IPC(8): B21J13/14
CPCB21J13/14
Inventor 雷雄杰唐海斌崔志文刘媛
Owner 东风科技(武汉)有限公司