CN103028716A

CN103028716A - Die mechanism with secondary core extraction function

Info

Publication number: CN103028716A
Application number: CN 201110315779
Authority: CN
Inventors: 牟维军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-08
Filing date: 2011-10-08
Publication date: 2013-04-10

Abstract

The invention relates to a die mechanism with a secondary core extraction function. The die mechanism consists of a runner sleeve, screws, a moving die backing plate, a fixed die backing plate, a fixed die plate, a support plate, a moving die plate, a push plate, a push rod, an inclined guide column, a screw rod, a spring, a slide block, a workpiece, a core, a guide sleeve and a guide column. The inclined guide column arranged at one side of the fixed die is used for driving the slide block to carry out primary core extraction, the workpiece arranged under the slide block is forced to lift and suspend under the action of the moving of the slide block, and the workpiece moves outwards and transversely together with the slide block to complete the secondary core extraction. The die mechanism has the advantages that the action is firm and reliable, the pressure transfer is good, the automation degree is very high, the safety and the environment-friendly effects are realized, and the die mechanism is suitable for the core extraction of side surfaces of metal casting dies and injection dies.

Description

A kind of mold mechanism of twice core pulling

Technical field

The present invention relates to die cast metal mould and plastic injection mould moulding, is a kind of mold mechanism of twice core pulling.

Background technology

At present, on the loosing core of mould side, screw thread core pulling is arranged, there is hydraulic pressure to loose core, rack-and-pinion is loosed core, curved pin is loosed core, taper pin is loosed core, although withdrawing power was large when said mechanism was loosed core, move solid and reliable, quality of item reaches graceful effect, but they are complicated for some goods side views, simultaneously the side needs one-shot forming once or during twice core pulling, looses core if adopt said mechanism to finish, out the following defective, one: when loosing core, very easily take out bad goods, its two: because article shape is complicated, if adopt above-mentioned each mechanism to loose core, the mould auxiliary component is many, so increased the whole projected area of mould, increase for the pressure of injection or die casting machine, increased simultaneously production cost, bring great workload to mfg. moulding die again.Install, debug, make maintenance difficulty and increase, bring for the mould pincers worker and have more several times workload.In order to overcome an above-mentioned difficult problem, I am combined in line manufacturing experience for many years, and am special to providing in the industry following a kind of mechanism to solve an above-mentioned difficult problem.

Summary of the invention

The present invention provides a kind of mold mechanism of twice core pulling.It is to realize like this, shown in figure two, when die sinking, under the effect of Angle Pin, Angle Pin (14) band movable slider (21) is done the skidding action on the inclined-plane of workpiece (22), finish deviating from that the side (24) of goods locates, so finish the action of once loosing core, the mould dynamic model continues mobile, Angle Pin (14) band movable slider (21) continues to do outside action on the inclined-plane of workpiece (22), when moving one regularly, the pressure of slide block (21) forces workpiece (22) to lift, owing to lifting of workpiece (22), so the moulding section of workpiece (22) is located to separate with goods (25), the groove that breaks away from goods so far reaches the purpose of twice core pulling.A kind of mold mechanism of twice core pulling, it is the power of utilizing active and inactive mold to open, Angle Pin band movable slider is once loosed core, force shaping workpiece to do to loose core for the second time by slide block when continuing die sinking, it has solved and has adopted hydraulic pressure, screw thread, rack-and-pinion, mould was made complexity, installation, maintenance, problem that debugging difficulty is large when curved pin was loosed core.Solved the large difficult problem of die cost, solved simultaneously a difficult problem of selecting injector and die casting machine moulding, its the mould features compact structure, simple, reliable in action, the pressure transmission is good, is a kind of suitable injection molding and metal die-casting mold side one of the upper comparatively ideal structure of loosing core.A kind of mold mechanism of twice core pulling, it is characterized in that: cover half backing plate (1) is fastenedly connected with screw (2) and solid plate (3), support plate (4) and moving platen (5) welding, core (18) is installed in moving platen (5) upward and is matched in clearance, Angle Pin (14) is installed on the solid plate (3), simultaneously slide block (21) is installed in to be in the t shape groove of moving platen (5) and is slidingly matched, workpiece (22) and spring (20) are communicated with on slide block (21) with screw rod (19), moving platen (5) and dynamic model backing plate (6) support plate (7) dynamic model backing plate (13) screw (16), (17), (10) and (15) be communicated with respectively, push rod (12) is fixed in the push pedal (8), then uses lower push pedal (9) compression and firm with screw (11) lock.

Description of drawings

The present invention is further described below in conjunction with accompanying drawing

Shown in the figure:

Sectional side elevation when Fig. 1 is the injection moulding of mould matched moulds

Sectional side elevation when Fig. 2 finishes once with twice core pulling and pushing out product when being the mould die sinking

Sequence number represents respectively among the figure:

1---cover half backing plate 2---screw 3---solid plate

4---support plate 5---moving platen 6---moving platens

7---the lower push pedals of support plate 8---upper push pedal 9---

10---screw 11---screw 12---push rods

13---dynamic model backing plate 14---Angle Pin 15---screws

16---screw 17---screw 18---cores

19---screw rod 20---spring 21---slide blocks

22---workpiece 23---sprue bush 24---goods outer side slots

25---the goods groove

The specific embodiment:

A kind of mold mechanism of twice core pulling as shown in the figure, it is to utilize after active and inactive mold opens, the power that dynamic model moves with injector or die casting machine, the Angle Pin band movable slider that is installed in cover half one side is done outside action and is finished once and loose core, continue die sinking, slide block compressing workpiece lifts, and finishes the twice core pulling action.Its implementation is as follows: when mould is opened, because retreating of dynamic model, at this moment the Angle Pin (14) that is installed on the cover half forces slide block (21) to make outside translation motion in the t shape groove of moving platen (5), in translation motion, the inclined-plane of slide block is along the inclined-plane action of workpiece (22), after moving to certain distance, the moulding section of slide block (21) is extracted out from the side channel of goods (24), its goods and slide block (21) are separated fully, finish and loose core for the first time.After partly continuing, moves the mould dynamic model, Angle Pin (14) forces slide block (21) to continue to do outside action, until the afterbody of slide block (21) and screw rod (19) mounted thereto are when contacting fully, the pressure of slide block (21) forces the moulding section of workpiece (22) to lift, the moulding section of workpiece this moment (22) separates with the groove that goods (25) are located, and reaches like this purpose of loosing core for the second time.When the lateral surface of goods is loosed core after part separates with goods fully, and ensure enough do not affect that goods release apart from the time, dynamic model just stops action, at this moment the injector push rod enters mould and promotes lower push pedal (9) and upper push pedal (8), drives push rod (12) promotion goods and deviates from mould outer (as shown in Figure 2).After outside goods are deviate from mould, during matched moulds, opposite action when dynamic model is partly done with die sinking, Angle Pin (14) band movable slider (21) is done the inboard action of mould, and slide block (21) forces workpiece (22) to reset, and Angle Pin (14) forces slide block (21) to reset, solid plate (3) compressing push rod (12) forces push pedal (8) and lower push pedal (9) to reset, after each part of mould resets fully, lock successively, just carry out the moulding by casting in next cycle.

Claims

1. the mold mechanism of a twice core pulling, it is characterized in that: cover half backing plate (1) is fastenedly connected with screw (2) and solid plate (3), support plate (4) and moving platen (5) welding, core (18) is installed in moving platen (5) upward and is matched in clearance, Angle Pin (14) is installed on the solid plate (3), simultaneously slide block (21) is installed in to be in the t shape groove of moving platen (5) and is slidingly matched, workpiece (22) and spring (20) are communicated with on slide block (21) with screw rod (19), moving platen (5) and dynamic model backing plate (6) support plate (7) dynamic model backing plate (13) screw (16), (17), (10) and (15) be communicated with respectively, push rod (12) is fixed in the push pedal (8), then uses lower push pedal (9) compression and firm with screw (11) lock.