CN216540808U - Shedder is used in casting - Google Patents

Abstract

The utility model relates to the field of casting molds, in particular to a demolding device for casting. The utility model comprises an upper die, a lower die and an ejection mechanism, wherein the upper die and the lower die are respectively provided with the ejection mechanism oppositely; the side of roof and/or apron is provided with the guide post, the guide post has the vertical face that contacts with the side of roof and/or apron, and the one end fixed connection of guide post is on corresponding last mould or lower mould, and wherein, the upper end fixedly connected with hoisting device of the guide post that the mould was established, goes up the stiff end fixed connection of the drive arrangement of the ejection mechanism that the mould was established and holds at hoisting device's work end, and the lower extreme of the guide post that the lower mould was established is equipped with the supporting legs that is used for fixing and supporting the guide post. The technical problem to be solved by the utility model is to provide a simple and easy-to-use demoulding device for casting, so that a product can be lifted together with an upper mould and can be smoothly released from the upper mould.

Description

Shedder is used in casting

Technical Field

The utility model relates to the field of casting molds, in particular to a demolding device for casting.

Background

The casting industry needs to use a mold to cast products, and the mold consisting of an upper mold and a lower mold is most widely applied. The common demoulding method is that the upper mould is moved away, the product is left in the lower mould due to the self gravity, and the product is ejected from the lower mould and is clamped. The clamping mode is that a manual clamp is used for clamping and the mechanical arm clamp is used, the production efficiency is low in the mode that the manual clamp is used for clamping, the mechanical arm clamp is used for clamping, the tool clamp needs to be frequently replaced due to the fact that the product types are more, the production efficiency is influenced, and the input cost of the tool clamp is high.

Application publication No. CN102463335A discloses another demoulding mode of a mould stripper ring device for reducing casting deformation of a low-pressure cast aluminum alloy wheel. And the top die, the stripping plate, the stripping ring and the blank are lifted to a height 6-10 cm higher than the receiving tray by the top die lifting frame for stripping, and the stripping plate applies a stripping force to the mounting surfaces of the stripping ring and the product through the connecting rod and the central ejector rod to eject the product. This mode needs to set up the stripper ring to with stripper ring and connecting rod fixed connection, the operation is complicated, and the exorbitrary composition of the exorbitant effect of demoulding moreover is in the peripheral end of product, and the product atress is inhomogeneous, produces the deformation easily.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a simple and easy-to-use demoulding device for casting, so that a product can be lifted together with an upper mould and can be smoothly released from the upper mould.

The technical scheme for solving the technical problems is as follows:

a demoulding device for casting comprises an upper mould, a lower mould and an ejection mechanism, and is characterized in that the upper mould and the lower mould are respectively provided with one ejection mechanism oppositely, each ejection mechanism comprises an ejector rod, a top plate and a cover plate, one end of each ejector rod is inserted into the corresponding top plate, the top end of each ejector rod is fixedly connected between the corresponding top plate and the corresponding cover plate, and the cover plate is connected with a driving device for driving the corresponding ejector rod to slide up and down; the side of roof and/or apron is provided with the guide post, the guide post has the vertical face that contacts with the side of roof and/or apron, and the one end of guide post is fixed even on corresponding last mould or lower mould, and wherein, the upper end fixedly connected with hoisting device of the guide post that the mould established, and the stiff end fixed connection of going up the drive arrangement of the ejection mechanism that the mould established is at hoisting device's work end, and the lower extreme of the guide post that the lower mould was established is equipped with the supporting legs that is used for fixing and supporting the guide post.

Preferably, the guide posts are provided on opposite sides of the top and/or cover plate.

Preferably, the number of guide posts on each side is three.

Preferably, the top plate and the cover plate are rectangular plates with equal cross sections and are horizontally arranged.

Preferably, the guide column is a cylinder or a square column.

Preferably, the cover plate is fixedly connected to the driving device through the pressing plate.

Preferably, the top end of one end of the ejector rod is provided with a flange, a groove matched with the flange is formed between the top plate and the cover plate, and the flange is arranged in the groove.

The utility model has the beneficial effects that:

1. the upper die and the lower die are respectively provided with the ejection mechanism oppositely, when a product is demoulded, the lower die ejection mechanism is used for ejecting the product upwards in a die assembly state, so that the product is not tightly combined with the lower die and is ejected in the upper die, then the upper die is lifted, the product is ejected out of the receiving tray along with the upper die, the product is demoulded easily, the problem that the product cannot be lifted together with the upper die due to the fact that the product is not easy to fall out of the lower die due to dead weight is solved, the product structure is simple and practical, the manufacturing cost is low, and the upper die ejection mechanism is suitable for being used in large batches in factories.

2. Through setting up the guide post, make the ejector pin reciprocate the in-process and do not produce the slope, the hole that aligns the mould very easily on the one hand inserts the mould, and on the other hand can not warp when taking out from the mould, has prolonged the life of ejector pin.

Drawings

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

in the figure: 1. the device comprises an upper die, a lower die, a push-out mechanism, a push-out rod, a top plate, a cover plate, a press plate and a guide column, wherein the upper die comprises 2 parts of the upper die, 3 parts of the push-out mechanism, 31 parts of the push-out rod, 32 parts of the top plate, 33 parts of the cover plate, 34 parts of the press plate and 4 parts of the guide column.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.

As shown in the drawings, the demolding device for casting in the present embodiment includes an upper mold 1, a lower mold 2 and an ejection mechanism 3, and is characterized in that the upper mold 1 and the lower mold 2 are respectively provided with one ejection mechanism 3 oppositely, the ejection mechanism 3 includes an ejector rod 31, a top plate 32 and a cover plate 33, and preferably, the top plate 32 and the cover plate 33 are rectangular plates with equal cross sections and horizontally arranged. One end of the ejector rod 31 is inserted into the top plate 32, and the top end of the end is fixedly connected between the top plate 32 and the cover plate 33, preferably, a flange is arranged at the top end of one end of the ejector rod 31, a groove matched with the flange is arranged between the top plate 32 and the cover plate 33, and the flange is arranged in the groove.

The cover plate 33 is connected with a driving device for driving the mandril 31 to slide up and down; preferably, the cover plate 33 is fixedly connected to the driving device by a pressure plate 34.

The side of the top plate 32 and/or the cover plate 33 is provided with a guide post 4, the guide post 4 has a vertical surface contacting with the side of the top plate 32 and/or the cover plate 33, and preferably, the guide post 4 is a cylinder or a square column. In this embodiment, the guiding studs 4 are disposed on two opposite sides of the top plate 32 and/or the cover plate 33, and preferably, three guiding studs 4 are disposed on each side.

One end of the guide column 4 is fixedly connected to the corresponding upper die 1 or the lower die 2, wherein the upper end of the guide column 4 arranged on the upper die 1 is fixedly connected with a lifting device, the fixed end of a driving device of the ejection mechanism 3 arranged on the upper die 1 is fixedly connected to the working end of the lifting device, and the lower end of the guide column 4 arranged on the lower die 2 is provided with a supporting leg for fixing and supporting the guide column 4.

The using method of the utility model is as follows: when the product is demoulded, the product is pushed upwards by the ejection mechanism 3 arranged on the lower die 2 in a die closing state, so that the product is loosely combined with the lower die 2 and is tightly pushed in the upper die 1. Then the lifting device lifts the upper die 1, the product is lifted together with the upper die 1, the product is ejected to the receiving disc by the ejection mechanism 3 arranged on the upper die 1, the light demoulding of the product is realized, the problems that the product cannot be lifted together with the upper die 1 due to the fact that the dead weight is not easy to be separated from the lower die 2 are solved, and the ejector rod 31 cannot be inclined in the up-and-down moving process by arranging the guide column 4, on one hand, the hole which is aligned with the die is easy to insert into the die, on the other hand, the product cannot be deformed when being pulled out from the die, and the service life of the ejector rod 31 is prolonged. The product has simple and practical structure and low manufacturing cost, and is suitable for large-batch use in factories.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the utility model.

Claims (7)

1. A demoulding device for casting comprises an upper mould (1), a lower mould (2) and an ejection mechanism (3), and is characterized in that the upper mould (1) and the lower mould (2) are respectively provided with one ejection mechanism (3) oppositely, each ejection mechanism (3) comprises an ejector rod (31), a top plate (32) and a cover plate (33), one end of each ejector rod (31) is inserted into the corresponding top plate (32), the top end of each ejector rod is fixedly connected between the corresponding top plate (32) and the corresponding cover plate (33), and the corresponding cover plate (33) is connected with a driving device for driving the corresponding ejector rod (31) to slide up and down; the side of roof (32) and/or apron (33) is provided with guide post (4), guide post (4) have with roof (32) and/or the vertical face that the side of apron (33) contacted, the one end of guide post (4) is fixed to be connected on corresponding last mould (1) or lower mould (2), wherein, the upper end fixedly connected with hoisting device of the guide post (4) that mould (1) was established, the stiff end fixed connection of the drive arrangement of ejection mechanism (3) that mould (1) was established is at hoisting device's work end, the lower extreme of the guide post (4) that lower mould (2) were established is equipped with the supporting legs that are used for fixed and support guide post (4).

2. A casting demolding device as claimed in claim 1, characterized in that the guide posts (4) are arranged on opposite sides of the top plate (32) and/or the cover plate (33).

3. A casting mold release device according to claim 1 or 2, characterized in that the guide posts (4) of each side are provided in three.

4. A casting mold release device according to claim 1 or 2, characterized in that the top plate (32) and the cover plate (33) are horizontally arranged rectangular plates having an equal cross section.

5. A casting mold release device according to claim 1 or 2, characterized in that the guide post (4) is a cylinder or a square post.

6. A casting demolding device as claimed in claim 1, characterized in that the cover plate (33) is fixedly connected to the driving device by means of a pressure plate (34).

7. A casting mold release device according to claim 1, wherein the top end of one end of the ejector pin (31) is provided with a flange, a groove adapted to the flange is provided between the top plate (32) and the cover plate (33), and the flange is disposed in the groove.

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