CN202986017U

CN202986017U - Injection mold releasing device

Info

Publication number: CN202986017U
Application number: CN 201220585923
Authority: CN
Inventors: 黄沛锋; 梁士科; 陈培明
Original assignee: GUANGXI WUZHOU WUYI PLASTIC PRODUCT CO Ltd
Current assignee: GUANGXI WUZHOU WUYI PLASTIC PRODUCT CO Ltd
Priority date: 2012-11-08
Filing date: 2012-11-08
Publication date: 2013-06-12
Anticipated expiration: 2022-11-08

Abstract

The utility model discloses an injection mold releasing device. The injection mold releasing device comprises a movable mold, a first fixed mold, a second fixed mold, a drag hook, a pin key pressing plate, a pin key and a spring. The drag hook is fixed on the movable mold, the pin key pressing plate is fixed on the first fixed mold, the pin key is clamped in a clamping groove between the drag hook and the second fixed mold, and the spring is arranged on the bottom of the pin key. When the molds are released, the movable mold and the second fixed mold move integrally and drive the drag hook and the pin key to move, and the first fixed mold moves relative to the movable mold and is released first; when an inclined surface of the bottom of the pin key pressing plate contacts the pin key, the inclined surface presses the pin key downwards till the whole inclined surface separates from the pin key, and then the movable mold begins to be released; and at last, a whole plastic product is wrapped outside a mold core of the movable mold 1 and ejected out of the mold through an ejection rod. According to the injection mold releasing device, the purpose that a complete set of molds are released sequentially can be achieved, defect rates can be reduced, and product manufacturing cost can be reduced.

Description

Demoulding device of injection mold

Technical field

The utility model relates to the plastic mold manufacture technical field, especially a kind of demoulding device of injection mold.

Background technology

Square roof drain is a large series products of drainpipe series, and this series products size is larger, complex structure, on one side shape of product is pipe, another side is funnel shaped square tube; This product mold is made of two cover half and a dynamic model, as shown in Figure 1, at first will pull out pipe part from cover half second during product stripping, product is fixed in dynamic model, after waiting dynamic model to withdraw from, the recycling push rod product from dynamic die liftout.

There is following deficiency in this technical scheme:

1, during product stripping, the most cases mould can first separate with cover half second from dynamic model, and product is wrapped on cover half second can't the demoulding, produces defective products.

2, for making the product demoulding smoothly, needing deliberately to grind breaking point at four angles of projected square part increases frictional force, but the time of keeping is not long, and causes the significantly rising of manufacturing cost.

The utility model content

The purpose of this utility model is to provide a kind of demoulding device of injection mold, and this demoulding device of injection mold can effectively solve the smooth release problems of square roof drain series products, reduces the defective products rate.

In order to address the above problem, the technical solution adopted in the utility model is:

This demoulding device of injection mold comprises cover half first, dynamic model and the cover half second between described cover half first and described dynamic model, in the cotter way of described cover half second, pin key is housed, and between described cotter way bottom land and pin key, spring is housed; Be fixedly connected with drag hook on described dynamic model, this drag hook is provided with the breach that enters for described pin key; Be fixedly connected with the pin key pressing plate on the cover half first, this pin key pressing plate is provided be used to the crimping inclined-plane that drives the described cotter way of described pin key retraction.

In above technical scheme, further scheme is: described drag hook has opening towards the elongated slot of described pin key, and described breach is located on the cell wall on this elongated slot both sides; Described pin key pressing plate is inserted in the elongated slot of described drag hook under the matched moulds state.

Owing to having adopted technique scheme, the utility model compared with prior art has following beneficial effect:

1, product can be realized the action of the demoulding in order, guarantees that the cover half first first separates with cover half second, and the product pipe partly breaks away from the cover half first, and then dynamic model separates with cover half second, and square tube partly wraps in dynamic model.

2, reduce defective products rate, minimizing manufacturing cost.

Description of drawings

Fig. 1 prior art injection mold assembling schematic diagram.

Fig. 2 is demoulding device of injection mold assembling schematic diagram.

Fig. 3 is the drag hook front view.

Fig. 4 is the drag hook upward view.

Fig. 5 is pin key pressing plate front view.

Fig. 6 is pin key pressing plate upward view.

Fig. 7 is A-A cutaway view in the demoulding device of injection mold installation diagram.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing embodiment:

demoulding device of injection mold shown in Figure 2, comprise cover half first 9, dynamic model 1 and the cover half second 4 between described cover half first 9 and described dynamic model 1, pin key 6 is housed in the cotter way of cover half second 4, between cotter way bottom land and pin key 6, spring 5 is housed, be fixedly connected with drag hook 2 by screw 3 on dynamic model 1, this drag hook 2 is provided with the breach that enters for pin key 6, as Fig. 3, shown in 4, be fixedly connected with pin key pressing plate 7 by screw 8 on cover half first 9, this pin key pressing plate 7 is provided with for the crimping inclined-plane that drives pin key 6 retraction cotter ways, as Fig. 5, shown in 6, drag hook 2 has opening towards the elongated slot of pin key 6, breach is located on the cell wall on this elongated slot both sides, pin key pressing plate 7 is inserted in the elongated slot of described drag hook 2 under the matched moulds state.

during die sinking, Injection Motor Template moves to left, the dynamic model 1 that is fixed on moving platen moves to left simultaneously, cover half second 4 is moved to the left together with also under the effect of drag hook 2 and pin key 6, break away from cover half first 9, the drag hook 2 and pin key 6 integral body that are fixed on dynamic model 1 and cover half second 4 move to left, after a mobile segment distance, pin key 6 touches the crimping inclined-plane of pin key pressing plate 7 lower planes, along with the continuation of pin key 6 is moved, the crimping inclined-plane continues to force down pin key 6, as shown in Figure 7, when pin key 6 leaves the crimping inclined-plane, the plane contact pin key 6 of pin key pressing plate 7 high order ends, this moment, pin key 6 was pressed in the groove of cover half second 4 fully, dynamic model 1 drives the drag hook 2 that is fixed on above it and moves to left and break away from cover half second 4, whole plastic products were drawn out and wrapped in outside the core rod of dynamic model 1 this moment, push rod stretches out plastic products is ejected dynamic model 1, so far an injection cycle finishes.

Claims

1. demoulding device of injection mold, comprise cover half first (9), dynamic model (1) and be positioned at described cover half first (9) and described dynamic model (1) between cover half second (4), it is characterized in that: pin key (6) is housed in the cotter way of described cover half second (4), between described cotter way bottom land and pin key (6), spring (5) is housed; Be fixedly connected with drag hook (2) on described dynamic model (1), this drag hook (2) is provided with the breach that enters for described pin key (6); Be fixedly connected with pin key pressing plate (7) on cover half first (9), this pin key pressing plate (7) is provided be used to the crimping inclined-plane that drives the described cotter way of described pin key (6) retraction.

2. demoulding device of injection mold according to claim 1, it is characterized in that: described drag hook (2) has opening towards the elongated slot of described pin key (6), and described breach is located on the cell wall on this elongated slot both sides; Described pin key pressing plate (7) is inserted in the elongated slot of described drag hook (2) under the matched moulds state.