CN202685223U

CN202685223U - Secondary segmented ejection device for injection molds

Info

Publication number: CN202685223U
Application number: CN 201220350193
Authority: CN
Inventors: 张平月
Original assignee: Ningbo Yuefei Mold Co Ltd
Current assignee: Ningbo Yuefei Mold Co Ltd
Priority date: 2012-07-11
Filing date: 2012-07-11
Publication date: 2013-01-23
Anticipated expiration: 2022-07-11

Abstract

The utility model provides a secondary segmented ejection device for injection molds. According to the technical scheme, the secondary segmented ejection device comprises a drag hook loading plate (1), rotating drag hooks (2), support blocks (3) and an ejection plate (4), wherein the drag hook loading plate is arranged below the ejection plate; the rotating drag hooks (2) are arranged on one side of the drag hook loading plate; the ejection plate is hooked by hook buckles of the rotating drag hooks; a primary ejector rod is fixed on the drag hook loading plate; a secondary ejector rod is fixed on the ejection plate; when a mold is opened, a tail column of an injection molding machine pushes the ejection plate to drive the drag hook loading plate, the primary ejector rod and the secondary ejector rod which perform first-stage ejection synchronously; when a rotating arm is in contact with a shifting step, the rotating drag hooks rotate so that the drag hook loading plate is separated from the ejection plate; the drag hook loading plate with the primary ejector rod stops ejecting forwards; and the ejection plate with the secondary ejector rod continues advancing to perform second-stage ejection. The shortcoming that products are difficultly ejected out and released from molds in the prior art is overcome; and by the secondary segmented ejection device, injection molding products can be smoothly ejected out and released from molds.

Description

A kind of secondary segmenting liftout attachment of injection mold

Technical field

The utility model relates to the ejection device mechanism of injection mold, specifically refers to for injection mold the secondary segmenting liftout attachment of injection-molded item by a kind of injection mold of twice ejection device.

Background technology

The ejecting mechanism that existing injection mold adopts can satisfy the requirement that ejects of goods simple in structure, but for baroque goods, an existing ejecting mechanism can't accomplish to allow the smooth demoulding of goods, for example: when on the reinforcement of goods during with back-off, when once eject finish after, goods still do not break away from jacking block, need manually with hand goods to be pulled out, easy of like this goods plucking, cause goods bad or scrap, therefore, prior art exists goods to be difficult to the problems and shortcomings of smooth ejection device.

Summary of the invention

Problems and shortcomings for above-mentioned prior art existence, the utility model adopts by the drag hook support plate, rotate drag hook, be provided with the device that the mould pin of stirring step and top board consist of, the drag hook support plate be arranged on top board below, the rotation drag hook is arranged on a side of drag hook support plate, hook top board by the fastener that rotates drag hook, during application, a push rod is fixedly installed on the drag hook support plate, the secondary push rod is fixedly installed on the top board, when the mould die sinking ejects, the stern post of injection machine promotes top board and drives the drag hook support plate by top board, push rod and secondary push rod carry out ejecting of phase I synchronously, when the pivoted arm that rotates drag hook touch the mould pin stir step the time, rotating the drag hook rotation makes the drag hook support plate separate with the top board unhook, the drag hook support plate carries a push rod and stops sinciput, and top board carries the secondary push rod to be continued to carry out forward the technical scheme that second stage ejects, and a kind of secondary segmenting liftout attachment of injection mold is provided, be intended to by twice ejection device, make injection-molded item reach the purpose of smooth ejection device.

The purpose of this utility model is achieved in that a kind of secondary segmenting liftout attachment of injection mold, comprise the drag hook support plate, rotate drag hook, mould pin, top board, wherein: described drag hook support plate is the steel plate of rectangle, be fixed with above the drag hook support plate be used to the first pressing plate of fixing a push rod, the center of drag hook support plate and described the first pressing plate is provided be used to the manhole that passes the injection machine stern post; Two limits are provided with respectively rotating rotation drag hook in opposite directions about drag hook support plate front;

The described rotation drag hook vertically L-shaped hook-shaped steel components of section and the base formation of cross break of serving as reasons, the base of rotating the cross break of drag hook is called pivoted arm, and the limit that described vertical section the upper end of rotating drag hook is provided with the horizontal protrusion of described pivoted arm opposite direction is called fastener; The described vertical section turnover center with described pivoted arm of rotating drag hook is provided with circular through hole and is called the hinge hole; Rotating drag hook is rotatably connected by the rotating shaft of described hinge aperture and drag hook support plate;

Described mould pin is the rectangular steel plates of fixed support dynamic model support plate, and a side of mould pin is provided with top and protrudes the two stage steps of the recessed formation in bottom and be called and stir step;

Described top board is the steel plate of rectangle, is fixed with above the top board for fixing the second pressing plate of secondary push rod;

The drag hook support plate be arranged on top board below, hook top board by the fastener that rotates drag hook, No. one time push rod is fixedly installed on the drag hook support plate, the secondary push rod is fixedly installed on the top board; Drag hook support plate and top board slide between two described mould pin of stirring the step face-off below;

The direction face of structure representation is divided into up, down, left, right, front, rear side, wherein, the front by in the face of the face of statement main body, the back is the face relative with described front.

Operation principle

During application, mould is horizontal installation, and the above-below direction that structure is described is the fore-and-aft direction of job description.

When the mould die sinking ejects, the stern post of injection machine promotes top board and drives drag hook support plate, push rod and secondary push rod by top board to carry out forward synchronously ejecting of phase I, when the pivoted arm that rotates drag hook touch the mould pin stir step the time, rotating the drag hook rotation makes the drag hook support plate separate with the top board unhook, the drag hook support plate carries a push rod and stops sinciput, top board carries the secondary push rod to be continued to carry out forward second stage and ejects, and finishes Double-ejection.

Above-mentioned, the utility model adopts by the drag hook support plate, rotate drag hook, be provided with the device that the mould pin of stirring step and top board consist of, the drag hook support plate be arranged on top board below, the rotation drag hook is arranged on a side of drag hook support plate, hook top board by the fastener that rotates drag hook, during application, a push rod is fixedly installed on the drag hook support plate, the secondary push rod is fixedly installed on the top board, when the mould die sinking ejects, the stern post of injection machine promotes top board and drives the drag hook support plate by top board, push rod and secondary push rod carry out ejecting of phase I synchronously, when the pivoted arm that rotates drag hook touch the mould pin stir step the time, rotating the drag hook rotation makes the drag hook support plate separate with the top board unhook, the drag hook support plate carries a push rod and stops sinciput, top board carries the secondary push rod and continues to carry out forward the technical scheme that second stage ejects, having overcome prior art exists goods to be difficult to the problems and shortcomings of smooth ejection device, the secondary segmenting liftout attachment of a kind of injection mold that provides, by twice ejection device, make injection-molded item reach the purpose of smooth ejection device.

Description of drawings

Fig. 1 is the structural representation of the secondary segmenting liftout attachment of a kind of injection mold of the present utility model;

Fig. 2 is the secondary segmenting liftout attachment of a kind of injection mold of the present utility model, is operated in the drag hook support plate and separates with the top board unhook, and a push rod stops the principle schematic of sinciput tense;

Fig. 3 is the secondary segmenting liftout attachment of a kind of injection mold of the present utility model, is operated in top board and carries the principle schematic that the secondary push rod continues to finish forward the Double-ejection tense.

Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but should not be construed as any restriction of the present utility model.

Among the figure: drag hook support plate 1, the first pressing plate 11, rotate drag hook 2, fastener 21, pivoted arm 22, mould pin 3, stir step 31, top board 4, the second pressing plate 41, push rod 01, secondary push rod 02, stern post 03, dynamic model support plate 04.

The specific embodiment

Consult Fig. 1～Fig. 3, the secondary segmenting liftout attachment of a kind of injection mold of the present utility model, comprise drag hook support plate 1, rotate drag hook 2, mould pin 3, top board 4, wherein: described drag hook support plate 1 is the steel plate of rectangle, be fixed with above the drag hook support plate 1 be used to the first pressing plate 11 of fixing a push rod 01, the center of drag hook support plate 1 and described the first pressing plate is provided be used to the manhole that passes injection machine stern post 03; Two limits are provided with respectively rotating rotation drag hook 2 in opposite directions about drag hook support plate 1 front;

The described rotation drag hook 2 vertically L-shaped hook-shaped steel components of section and the base formation of cross break of serving as reasons, the base of rotating the cross break of drag hook 2 is called pivoted arm 22, and the limit that described vertical section the upper end of rotating drag hook 2 is provided with the horizontal protrusion of described pivoted arm 22 opposite directions is called fastener 21; The described vertical section turnover center with described pivoted arm 22 of rotating drag hook 2 is provided with circular through hole and is called the hinge hole; Rotating drag hook 2 is rotatably connected by the rotating shaft of described hinge aperture and drag hook support plate 1;

Described mould pin 3 is the rectangular steel plates of fixed support dynamic model support plate 04, and a side of mould pin 3 is provided with top and protrudes the two stage steps of the recessed formation in bottom and be called and stir step 31;

Described top board 4 is the steel plate of rectangle, is fixed with above the top board 4 for fixing the second pressing plate 41 of secondary push rod 02;

Drag hook support plate 1 be arranged on top board 4 below, hook 4, push rods 01 of top board by the fastener 21 that rotates drag hook 2 and be fixedly installed on the drag hook support plate 1, secondary push rod 02 is fixedly installed on the top board 4; Drag hook support plate 1 and top board 4 slide between two described mould pin 3 of stirring step 31 face-offs below;

Operation principle

When the mould die sinking ejects, the stern post 03 of injection machine promotes top board 4 and drives drag hook support plates 1, push rod 01 and secondary push rod 02 by top board 4 to carry out forward ejecting of phase I synchronously, when the pivoted arm 22 that rotates drag hook 2 touch mould pin 3 stir step 31 time, rotating drag hook 2 rotations makes drag hook support plate 1 separate with top board 4 unhook, drag hook support plate 1 carries a push rod 01 and stops sinciput, top board 4 carries secondary push rod 02 to be continued to carry out forward second stage and ejects, and finishes Double-ejection.

Claims

1. the secondary segmenting liftout attachment of an injection mold, it is characterized in that: comprise drag hook support plate (1), rotate drag hook (2), mould pin (3), top board (4), described drag hook support plate (1) is the steel plate of rectangle, be fixed with above the drag hook support plate (1) be used to the first pressing plate (11) of fixing a push rod (01), the center of drag hook support plate (1) and described the first pressing plate is provided be used to the manhole that passes injection machine stern post (03); Two limits are provided with respectively rotating rotation drag hook (2) in opposite directions about drag hook support plate (1) front;

Described rotation drag hook (2) the vertically L-shaped hook-shaped steel components of section and the base formation of cross break of serving as reasons, the base of rotating the cross break of drag hook (2) is called pivoted arm (22), and the limit that described vertical section the upper end of rotating drag hook (2) is provided with the horizontal protrusion of described pivoted arm (22) opposite direction is called fastener (21); The described vertical section turnover center with described pivoted arm (22) of rotating drag hook (2) is provided with circular through hole and is called the hinge hole; Rotating drag hook (2) is rotatably connected by the rotating shaft of described hinge aperture and drag hook support plate (1);

Described mould pin (3) is the rectangular steel plates of fixed support dynamic model support plate (04), and a side of mould pin (3) is provided with top and protrudes the two stage steps of the recessed formation in bottom and be called and stir step (31);

Described top board (4) is the steel plate of rectangle, is fixed with above the top board (4) for fixing second pressing plate (41) of secondary push rod (02);

Drag hook support plate (1) be arranged on top board (4) below, hook top board (4) by the fastener (21) that rotates drag hook (2), a push rod (01) is fixedly installed on the drag hook support plate (1), and secondary push rod (02) is fixedly installed on the top board (4); Drag hook support plate (1) and top board (4) slide and are positioned at two belows between the described mould pin (3) of stirring step (31) face-off;