CN213052686U - Novel mechanical device for delaying crank shifting and secondarily ejecting of three-plate mold - Google Patents

Abstract

The utility model relates to the field of zinc-aluminum alloy die-casting dies, in particular to a novel mechanical device for a three-plate die delay crank stirring secondary ejection, which comprises a die set frame, a die set core, an inclined guide pillar, a slider, a movable die stripper plate supporting pin, a movable die plate, a die foot, a crank block, a crank plate, a back cover plate, an ejector pin fixing plate, an ejector pin push rod, a stripper plate push rod, a core insert, a movable die core and an ejector pin rod; the inclined guide post is fixed on the die fixing frame; the slide block is contacted with the movable mould stripper plate; the movable die unloading plate is connected with a movable die core through a screw, and a core insert is inlaid in the movable die core; the ejector pin rod is fixed between the ejector pin plate and the ejector pin fixing plate through screws. The utility model discloses cancellation thimble on the product reduces artifical thimble burr process of going, reduces manufacturing cost, improves the life of die-casting production efficiency and mould, and it is ejecting to increase lever principle and carry out the secondary, ensures ejecting stability.

Description

Novel mechanical device for delaying crank shifting and secondarily ejecting of three-plate mold

Technical Field

The utility model relates to a zinc-aluminum alloy die casting die field specifically is a three-plate mould delays crank and stirs ejecting novel mechanical device of secondary.

Background

At present because people's material level improves, pursue also promoting thereupon to the performance of product, and the complication of product structure leads to the manufacturing cost of product to improve, and chinese human cost promotes year by year, causes the profit rate of enterprise to hardly improve, and the pressure of enterprise obviously increases, to present high pressure casting industry market, under the prerequisite of guaranteeing casting quality requirement, reduces casting cost and promotion casting efficiency and is the first solution problem of present casting industry enterprise. The optimization and innovation are specially carried out on the technical level of design and development, so that the enterprise competitiveness is improved, and the change is better adapted to the change of market change.

Most of conventional die-casting dies are complex in structure, the produced product cannot meet the requirements, meanwhile, the production cost is high, the adopted ejection structures are round ejector pins, flat ejector pins, wire cylinders and inclined ejector pins, the traditional ejection is one-time, the glue positions and the rib positions of a plurality of products are relatively narrow and deep, the ejector pins are easy to clamp or break in production and need to be replaced with lower dies, the production efficiency is greatly reduced, and in production, because the dies are aged, the burrs of the ejector pins are gradually increased, the production efficiency is reduced when the later working section is manually removed, and the cost is improved; and the design of the spring in the original mould, in the process of long-term use, the fatigue of the spring can influence the use of the mould and the production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three-plate mould postpones crank and stirs ejecting novel mechanical device of secondary to solve the problem of proposing in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel mechanical device for delaying crank-toggle secondary ejection of a three-plate mold comprises a mold fixed mold frame, a mold fixed mold core, an inclined guide pillar, a slide block, a movable mold unloading plate supporting pin, a movable mold plate, a mold foot, a crank block, a crank plate, a back cover plate, an ejector fixing plate, an ejector push rod, an unloading plate push rod, a mold core insert, a movable mold core and an ejector pin rod; the die fixed die frame is provided with a die fixed die core and an inclined guide pillar, one side of the inclined guide pillar is provided with a slide block, the inclined guide pillar is used for driving the slide block to move, and the slide block is in contact with a movable die stripper plate; the movable die unloading plate is connected with a movable die core through screws, the movable die core is connected with the core insert in an embedded mode, and the core insert is fixed on the movable die plate through screws; the ejector pin rod penetrates through the movable template and the movable mold core and is fixed between the ejector pin plate and the ejector pin fixing plate through screws; a thimble push rod and a stripper plate push rod are fixed on the thimble fixing plate; the sealing bottom plate is connected with the mold legs, and one side, far away from the sealing bottom plate, of the mold legs is connected with the movable mold plate.

Preferably, the through hole of the inclined guide post of the slider is of an oval structure and is used for delaying the sliding of the slider.

Preferably, the movable mould stripper plate is arranged on the front side of the movable mould plate and is used for pre-ejecting a product during one-time ejection.

Preferably, the movable mould stripper plate support pin is arranged between the movable mould stripper plate and the movable mould plate, and the movable mould stripper plate support plays a limiting and guiding role for the movable mould stripper plate and is used for limiting the pushing-out distance of the movable mould stripper plate.

Preferably, the ejector plate is used for ejecting the product after the sliding block slides out.

Preferably, the crank block is movably arranged at the upper end and the lower end of the ejector plate, and the crank plate is arranged on one side, away from the bottom of the ejector plate, of the crank block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a through mould modification device, cancel foundry goods surface thimble, saved and removed thimble burr process, save the cost of labor, also improve the stability of mould production simultaneously.

2. The utility model discloses consider product structure and package tight power reason, need add a slider that delays gliding under the condition of conventional die sinking, this scheme changes original two-plate mould into three-plate mould and adds the delay function, adopt the ejecting method of secondary, cut into the product shaping position and insert, once ejecting earlier the whole product shaping position of back-off movable mould insert (there is the slider that delays sliding before ejecting), the product cinder ladle that the secondary is ejecting will back-off again is ejecting together, make whole product break away from the mould including the cinder ladle completely.

3. The utility model discloses consider that spring fatigue can influence the mould and use when adopting old mode to use spring production, change mechanical type lever principle into and chase after the crank piece, this design's advantage is that there is not the thimble on the product, is the direct ejecting mold insert (product) of push pedal when once ejecting, compares with mould structure in the past, has improved product production efficiency, has reduced manufacturing cost, and the mould life-span also is ensured simultaneously.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

fig. 3 is a top view of the present invention.

In the figure: 1. a fixed mould frame; 2. fixing a mold core; 3. an inclined guide post; 4. a slider; 5. a movable mould stripper plate; 6. a movable mould discharging plate supports a needle; 7. moving the template; 8. a mould leg; 9. a crank block; 10. a crank plate; 11. sealing the bottom plate; 12. an ejector plate; 13. a thimble fixing plate; 14. a thimble push rod; 15. a stripper plate push rod; 16. a core insert; 17. a movable mould core; 18. a thimble rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a novel mechanical device for delaying crank-toggle secondary ejection of a three-plate mold comprises a mold fixed mold frame 1, a mold fixed mold core 2, an inclined guide pillar 3, a slide block 4, a movable mold unloading plate 5, a movable mold unloading plate supporting pin 6, a movable mold plate 7, mold feet 8, a crank block 9, a crank plate 10, a sealing bottom plate 11, an ejector pin plate 12, an ejector pin fixing plate 13, an ejector pin push rod 14, an unloading plate push rod 15, a mold core insert 16, a movable mold core 17 and an ejector pin rod 18; the mould is characterized in that a mould core 2 and an inclined guide pillar 3 are arranged on the mould fixed frame 1, a slide block 4 is arranged on one side of the inclined guide pillar 3, the inclined guide pillar 3 is used for driving the slide block 4 to move, and the slide block 4 is in contact with a movable mould stripper plate 5; the movable mould stripper 5 is connected with a movable mould core 17 through screws, the movable mould core 17 is connected with the core insert 16 in an embedded mode, and the core insert 16 is fixed on the movable mould plate 7 through screws; the thimble rod 18 passes through the movable mould plate 7 and the movable mould core 17 and is fixed between the thimble plate 12 and the thimble fixing plate 13 through screws; a thimble push rod 14 and a stripper push rod 15 are fixed on the thimble fixing plate 13; the bottom sealing plate 11 is connected with the mould leg 8, and one side of the mould leg 8, which is far away from the bottom sealing plate 11, is connected with the movable mould plate 7.

Further, the through hole of the inclined guide post 3 of the sliding block 4 is of an oval structure and is used for delaying the sliding of the sliding block 4.

Further, the movable mould stripper plate 5 is arranged on the front side of the movable mould plate 7 and used for pre-ejecting a product during one-time ejection.

Furthermore, the movable mould stripper plate supporting pin 6 is arranged between the movable mould stripper plate 5 and the movable mould plate 7, and the movable mould stripper plate supporting pin 6 plays a limiting and guiding role on the movable mould stripper plate 5 and is used for limiting the pushing-out distance of the movable mould stripper plate 5.

Further, the ejector plate 12 is used for ejecting the product after the slider 4 slides out.

Further, the crank blocks 9 are movably arranged at the upper end and the lower end of the ejector plate 12, and the crank plate 10 is arranged on one side of the crank blocks 9 far away from the bottom of the ejector plate 12.

The working principle is as follows: after the utility model opens the die for a certain distance, the delayed slide block 4 starts to loose core under the stirring of the inclined guide post 3, and the via hole of the inclined guide post 3 of the slide block 4 is of an oval structure, so that the slide block 4 is delayed; after the movable die and the fixed die are completely opened, under the thrust action of an external machine oil cylinder, a crank plate 9 of the die is pushed through an external ejector rod, an ejector plate 12 and an ejector fixing plate 13 move forwards, an unloading plate push rod 15 is pushed to push an ejector rod 18 out to a slotted plane of a crank block 9 and a die pin 8 to complete primary ejection, the crank block 9 continuously pushes the ejector plate 12 and the ejector fixing plate 13 to complete secondary ejection through the ejector rod 18 according to a mechanical lever principle to enable a product, a runner and a slag ladle to be ejected out and separated from the surface of the movable die, and the whole casting (the product and the runner/the slag ladle) is ejected by about 20mm at the moment, namely, secondary ejection is completed; the method comprises the following steps of cutting a product forming part into inserts by adopting a secondary ejection method, ejecting the inserts (a delayed sliding slide block is arranged before ejection) at the whole product forming part of the movable die firstly by one-time ejection, and ejecting the ejected product slag ladle together by the secondary ejection so as to ensure that the whole product, including the slag ladle, is completely separated from the die; change original spring design into mechanical type lever principle and add crank block 9, the advantage of this design is that there is not the thimble on the product, is that the push pedal directly ejecting mold insert (product) when once ejecting, compares with mould structure in the past, has improved product production efficiency, has reduced manufacturing cost, and the mould life-span also obtains guaranteeing simultaneously.

It is worth noting that: the whole device realizes control over the device through the controller, and because the equipment matched with the controller is common equipment, the device belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a three board mould postpone crank stir ejecting novel mechanical device of secondary which characterized in that: the device comprises a die fixed die frame (1), a die fixed die core (2), an inclined guide post (3), a slide block (4), a movable die stripper plate (5), a movable die stripper plate supporting pin (6), a movable die plate (7), a die foot (8), a crank block (9), a crank plate (10), a sealing bottom plate (11), an ejector plate (12), an ejector fixing plate (13), an ejector push rod (14), a stripper plate push rod (15), a die core insert (16), a movable die core (17) and an ejector pin rod (18); the mould is characterized in that a mould cavity (2) and an inclined guide post (3) are arranged on the mould fixed frame (1), a slide block (4) is arranged on one side of the inclined guide post (3), the inclined guide post (3) is used for driving the slide block (4) to move, and the slide block (4) is in contact with a movable mould stripper plate (5); the movable mould unloading plate (5) is connected with a movable mould core (17) through screws, the movable mould core (17) is connected with the core insert (16) in an inlaid mode, and the core insert (16) is fixed on the movable mould plate (7) through screws; the ejector pin rod (18) penetrates through the movable template (7) and the movable die core (17) and is fixed between the ejector pin plate (12) and the ejector pin fixing plate (13) through screws; a thimble push rod (14) and a stripper push rod (15) are fixed on the thimble fixing plate (13); the sealing bottom plate (11) is connected with the mould feet (8), and one side, far away from the sealing bottom plate (11), of the mould feet (8) is connected with the movable mould plate (7).

2. The novel mechanical device for the delayed crank toggle double ejection of the three-plate mold according to claim 1, is characterized in that: the through hole of the inclined guide post (3) of the sliding block (4) is of an oval structure and is used for delaying sliding of the sliding block (4).

3. The novel mechanical device for the delayed crank toggle double ejection of the three-plate mold according to claim 1, is characterized in that: the movable die stripper plate (5) is arranged on the front side of the movable die plate (7) and is used for pre-ejecting a product during one-time ejection.

4. The novel mechanical device for the delayed crank toggle double ejection of the three-plate mold according to claim 1, is characterized in that: the movable mould stripper plate supporting pin (6) is arranged between the movable mould stripper plate (5) and the movable mould plate (7), and the movable mould stripper plate supporting pin (6) plays a role in limiting and guiding the movable mould stripper plate (5) and is used for limiting the pushing distance of the movable mould stripper plate (5).

5. The novel mechanical device for the delayed crank toggle double ejection of the three-plate mold according to claim 1, is characterized in that: the ejector plate (12) is used for ejecting the product after the sliding block (4) slides out.

6. The novel mechanical device for the delayed crank toggle double ejection of the three-plate mold according to claim 1, is characterized in that: the crank block (9) is movably arranged at the upper end and the lower end of the ejector plate (12), and the crank plate (10) is arranged on one side, far away from the bottom of the ejector plate (12), of the crank block (9).

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