Automatic cutting device of restrictive pouring gate of injection mold
An injection mold, restrictive technology, applied in the field of automatic gate removal device, can solve the problem of high production cost, achieve the effect of improving production efficiency, reducing operating area and reducing production cost
Inactive Publication Date: 2012-09-05
CHANGZHI HUIFENG ELECTROMECHANICAL INDAL TRADE
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Problems solved by technology
[0002] At present, in the field of plastic injection molding technology, parts produced by molds with restricted gates are demoulded after injection molding of parts. After demolding, plastic parts and gates are connected together, and the gate part requires a manual or machining process. Removal, for injection molding parts, it is often produced in one mold with multiple cavities, and the production efficiency is high. The time taken to remove the gate of a part exceeds the time of injection molding, and the production cost is high
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[0012] As shown in the figure, an automatic cutting device for restrictive gates of injection molds, from bottom to top is hydraulic ejector pin 13, push plate 1, cover plate 2, backing plate 4, fixing plate 5, core 7, and stripping plate 10. Cavity mold 15, pull rod 9 installed in the middle of the fixed plate 5, and a cutter 3 fixed to the right in the middle of the cover plate 2; the cutting edge of the cutter 3 is at the top, and it passes through the cover plate 2 The corresponding holes of backing plate 4, fixing plate 5 and stripping plate 10 are aligned with the gate root, the bottom of cutter 3 is embedded in the lower surface of cover plate 2 and leveled with the lower surface of cover plate 2, fixed with screws, and cut The number of knives 3 is the same as the number of gates; the free height of the spring 12 located between the cover plate 2 and the backing plate 4 and set on the ejector rod 11 is about 10mm greater than the distance between the cover plate 2 and t...
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The invention provides an automatic cutting device of a restrictive pouring gate of an injection mold, aiming at automatically cutting off a pouring gate while injecting, moulding and de-moulding a plastic part. The automatic cutting device is characterized in that a rightward fixed cutter is arranged in the middle of a cover plate and passes through corresponding holes of the cover plate, a cushion plate, a fixing plate and a stripper plate to be aligned to the root part of the pouring gate; a distance is reserved between the upper end face of an ejection rod and the stripper plate and the distance is greater than a plurality of times of the thickness of a connection part between a pouring gate material and the part; the hole in the stripper plate is in clearance fit with the shape of the cutter and the gap is less than or equal to an overflowing edge value of used plastic; and the other holes are through holes. According to the automatic cutting device of the restrictive pouring gate of the injection mold disclosed by the invention, a manual or mechanical machining pouring gate removing procedure is omitted, the production efficiency is improved and the production cost is reduced.
Description
technical field [0001] The invention belongs to the technical field of plastic injection molding, and relates to a mold structure for automatic removal of a gate in an injection molding mold, in particular to a device for automatic removal of a restricted gate. Background technique [0002] At present, in the field of plastic injection molding technology, parts produced by molds with restricted gates are demoulded after injection molding of parts. After demoulding, plastic parts and gates are connected together, and the gate part requires a manual or machined process. Removal, for injection molding parts, is often produced in one mold with multiple cavities, and the production efficiency is high. The time taken to remove the gate of a part exceeds the time of injection molding, and the production cost is high. Contents of the invention [0003] The purpose of the present invention is to realize the automatic removal of the gate at the same time when the plastic part is inj...
Claims
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IPC IPC(8): B29C45/38
Inventor 张进忠亓祥前
Owner CHANGZHI HUIFENG ELECTROMECHANICAL INDAL TRADE