CN213224236U

CN213224236U - Mould sealing device

Info

Publication number: CN213224236U
Application number: CN202020358983.7U
Authority: CN
Inventors: 马广兴; 刘桂平; 奚道伟; 焦亚林
Original assignee: Suzhou Guangxing Mold Co Ltd
Current assignee: Suzhou Guangxing Mold Co Ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-05-18
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a mold sealing device, include: the movable template is provided with a movable mold core; the fixed die plate is provided with a fixed die core, and the fixed die plate is matched with the movable die plate to form a die cavity. And a first sealing ring surrounding the movable mold core and the fixed mold core is arranged between the movable mold plate and the fixed mold plate so that the inside of the first sealing ring is kept sealed. This mould sealing device carries out the separation with the air and the outside air in the die cavity, prevents that the outside air from getting into the die cavity, reduces the air content of product, improves product appearance and performance.

Description

Mould sealing device

Technical Field

The utility model relates to a mould field, in particular to mould sealing device.

Background

The die casting is a metal casting process and is characterized by that it utilizes the inner cavity of die to apply high pressure to molten metal to cast the required workpiece.

In the field of molding tools, it is known to use mold sealing devices of different designs to effect a matched mold seal. In the process of studying and realizing the compound die sealing, the utility model discloses the people finds that the mould sealing device among the prior art has following problem at least:

firstly, in the high-pressure metal casting process, a mold cavity contains a large amount of gas, so that the gas content in a product formed by molten metal is high, and the mechanical property of the product is influenced; secondly, when the product needs to be heat treated, gas is separated out, which causes bubbling of the product and further affects the appearance and performance of the product.

In view of the above, it is necessary to develop a mold sealing device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the prior art, the utility model discloses a main objective provides a mould sealing device, and it forms vacuum state through setting up the vacuum piece and come a large amount of air aspirations in the mould die cavity, improves the life of product.

Another object of the utility model is to provide a mold sealing device, it is equipped with the sealing washer through each periphery at the mould, carries out the separation with the air and the outside air in the die cavity, prevents that the outside air from getting into the die cavity, reduces the air content of product, improves product appearance and performance.

In order to realize the basis of the above objects and other advantages of the present invention, there are provided a mold sealing device and a mold, including:

the movable template is provided with a movable mold core;

the fixed die plate is provided with a fixed die core, and the movable die core and the fixed die core are combined to form a die cavity.

And a first sealing ring surrounding the movable mold core and the fixed mold core is arranged between the movable mold plate and the fixed mold plate so that the inside of the first sealing ring is kept sealed.

Preferably, a first vacuum absorbing piece is embedded in the fixed die plate, and a second sealing groove is further formed in the surface, facing the movable die plate, of the first vacuum absorbing piece.

Preferably, the mold sealing device is further provided with a sliding mechanism, and the sliding mechanism includes:

a slider;

the connector is arranged right in front of the sliding block and fixedly connected with the sliding block;

the pressing block is arranged right above the connector;

and a fourth sealing groove is formed in the surface of the pressing block, which is in contact with the connector.

Preferably, the movable die plate/the fixed die plate is provided with a first sealing groove, and the first sealing groove, the second sealing groove and the fourth sealing groove are tightly connected;

the first sealing ring is arranged in the first sealing groove, the second sealing groove and the fourth sealing groove.

Preferably, the movable die core is provided with a fifth sealing groove at the joint of the movable die core and the sliding block, and a fifth sealing strip is arranged in the fifth sealing groove.

Preferably, the movable template is embedded with a second vacuum suction piece;

the first vacuum absorbing piece is provided with first bulges which are arranged in an array manner in a concave manner upwards facing the movable template;

the second vacuum absorbing piece is arranged right below the first vacuum absorbing piece and is tightly attached, and second bulges which are arranged in an array manner are arranged on the surface of the second vacuum absorbing piece facing the fixed template;

the movable mould plate and the fixed mould plate are matched, so that the first vacuum absorbing piece on the fixed mould plate is matched with the second vacuum absorbing piece on the movable mould plate, the first protrusion is matched with the second protrusion, and an airflow channel is formed.

A first cooling channel is arranged in the first vacuum absorbing piece;

and the side wall of the first vacuum absorbing piece is provided with a vacuum absorbing hole communicated with the airflow channel.

And a second cooling channel is arranged in the second vacuum absorbing piece.

One of the above technical solutions has the following advantages or beneficial effects: the vacuum sucking piece is arranged to suck a large amount of air in the mold cavity out to form a vacuum state, so that the service life of a product is prolonged.

Another technical scheme in the above technical scheme has the following advantages or beneficial effects: it is through being equipped with the sealing washer at each periphery of mould, carries out the separation with the air in the die cavity and outside air, prevents that outside air from getting into the die cavity, reduces the air content of product, improves product outward appearance and performance.

Drawings

Fig. 1 is a sectional view of a mold sealing device according to an embodiment of the present invention;

fig. 2 is a bottom view of a stationary platen according to an embodiment of the present invention;

fig. 3 is a perspective view of a first vacuum absorbing member according to an embodiment of the present invention;

fig. 4 is a perspective view of a portion of a mold sealing apparatus according to an embodiment of the present invention;

fig. 5 is a perspective view of a connector according to an embodiment of the present invention;

fig. 6 is a perspective view of a press block according to an embodiment of the present invention;

fig. 7 is a perspective view of a slider according to an embodiment of the present invention;

fig. 8 is a perspective view of a portion of a proposed mold sealing apparatus according to an embodiment of the present invention;

fig. 9 is a perspective view of a second vacuum absorbing member according to an embodiment of the present invention;

fig. 10 is a cross-sectional view of a vacuum absorbing member according to an embodiment of the present invention;

fig. 11 is a cross-sectional view of a first vacuum absorbing member according to an embodiment of the present invention;

fig. 12 is a cross-sectional view of a second vacuum absorbing member according to an embodiment of the present invention;

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 drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.

Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

According to an embodiment of the present invention, with reference to the illustration of fig. 1, it can be seen that the mold sealing device includes:

a movable die plate 22 provided with a movable die core 162; a stationary platen 21 provided with a stationary core 161 and a core 163 located between the movable core 162 and the stationary core 161; after the movable mold plate 22 and the fixed mold plate 21 are closed, the movable mold core 162 in the movable mold plate 22 and the fixed mold core 161 in the fixed mold plate 21 are also closed to form a mold cavity.

Referring to fig. 2, it can be noted that a first sealing ring 12 surrounding a moving core 162 and a fixed core 161 is provided between the moving die plate 22 and the fixed die plate 21 so that the inside of the first sealing ring 12 is kept sealed.

Referring now to fig. 3, it can be seen that the fixed die plate 21 is embedded with a first vacuum absorbing member 151, and a second sealing groove 1512 is further formed on a surface of the first vacuum absorbing member 151 facing the movable die plate 22.

Referring now to fig. 4, it can be clearly understood that the mold sealing apparatus is further provided with a slide mechanism 13, and the slide mechanism 13 includes: a slider 133; a connector 132 provided right in front of the slider 133 and fixedly connected to the slider; and a pressing block 131 provided right above the connector 132.

Referring to fig. 5, in particular, a third sealing ring is arranged on the surface of the connector 132 facing the movable and fixed die plates 16, and a third sealing strip 1321 is arranged in the connector to ensure the sealing property between the sliding mechanism 13 and the cavity; referring to fig. 6, it can be understood that a fourth sealing groove 1311 is provided on a surface of the pressing block 131 contacting the connector 132.

The top surface of the connector 132 is provided with a pull rod groove, and the pull rod groove is connected with a driving device by using a pull rod, so as to drive the slide block 133 to be far away from or close to the movable die plate 22 and the fixed die plate 21, and further to make the core 163 be far away from or close to the fixed die core 161 and the movable die core 162.

Referring to fig. 2 again, it can be seen that the movable die plate 22/the fixed die plate 21 are provided with a first sealing groove, and the first sealing groove, the second sealing groove 1512 and the fourth sealing groove 1311 are tightly connected; the first seal ring 12 is mounted in a first, second, and

fourth seal grooves

1512, 1311.

Furthermore, the first, second, and

fourth sealing grooves

1512, 1311 are separately disposed to facilitate mounting and dismounting of components of the mold, and the tight connection between the first, second, and

fourth sealing grooves

1512, 1311 facilitates overall mounting of the first sealing ring 12, separates gaps between the sealing grooves, and further separates air in an external environment.

Although the position of the first seal groove is not shown in the drawings, it should be understood that the path of the first seal groove is the same as the path of the first seal ring 12 and is on the movable die plate 21/the fixed die plate 22.

Referring to fig. 7, it is clearly seen that a protrusion 1311 is formed on the rear side wall of the slider 133, and referring to fig. 4 again, it can be understood that first guide pieces 1332 are formed at both sides of the slider 133; and guide rails 134 disposed at both sides of the slider 133, the guide rails 134 being matched with the first guide 1322.

Referring now to fig. 8, it is described in more detail that the core 163 is provided with a groove 1631, and the groove 1631 matches with the protrusion 1331 on the slider 133, so as to enhance the fixing strength between the slider 133 and the movable die core 163, reduce the bearing capacity of the threaded connection, and enhance the service life of the threads.

The movable mould core 162 is attached to the slider 133, the movable mould core 162 is provided with a fifth sealing groove 1621, a fifth sealing strip is arranged in the fifth sealing groove 1621, and the fifth sealing strip and a third sealing strip 1321 on the connector 132 isolate a movable surface which can be contacted with the outside in the mould from the mould cavity, so that the air tightness between the sliding structure 16 and the mould cavity is prevented.

Referring now to fig. 9, it can be clearly seen that the moving platen 22 has embedded therein a second vacuum suction member 152; referring to fig. 3 again, the first vacuum suction member 151 is recessed upward toward the movable platen 22 with first protrusions 1511 arranged in an array; the second vacuum absorbing piece 152 is arranged right below the first vacuum absorbing piece 151 and is tightly attached, and second protrusions 1522 which are arranged in an array manner are arranged on the surface, facing the fixed template 21, of the second vacuum absorbing piece 152;

referring to fig. 10, it can be clearly understood that the mold closing action of the movable mold plate 22 and the fixed mold plate 21 is implemented to cooperate the first vacuum suction member 151 on the fixed mold plate 21 with the second vacuum suction member 152 on the movable mold plate 22, so that the first protrusion 1511 and the second protrusion 1522 are engaged to form the air flow channel 154.

Specifically, the first protrusion 1511 is within the ring enclosed by the first sealing ring 12, so that the air in the cavity flows out only through the path of the air flow channel 154;

further, the shapes of the first protrusion 1511 and the second protrusion 1522 are particularly preferably wave-shaped, and the wave-shaped airflow channel 154 formed by the matching of the wave-shaped first protrusion 1511 and the wave-shaped second protrusion 1522 increases the path through which the airflow passes, and when external air enters the cavity through the airflow channel 154, because the path is lengthened and the direction of the path is tortuous, the energy consumption of the external air can be accelerated, it is ensured that the external air does not enter the cavity, and the airflow cannot go out any more, so that the air content of the product is reduced, and the service life of the product is prolonged.

Referring to fig. 11, a first cooling channel 1513 is disposed in the first vacuum absorbing member 151, and further, referring to fig. 12, a second cooling channel 1521 is disposed in the second vacuum absorbing member 152, and cooling liquids are introduced into the first cooling channel 1513 and the second cooling channel 1521, so that the temperature of the mold can be reduced, the cooling molding of the molten metal in the cavity can be accelerated, the molding time can be reduced, and the production efficiency can be improved; the first vacuum absorbing member 151 has a vacuum absorbing hole 153 formed in a sidewall thereof to communicate with the air flow path 154.

The airflow channel 154 is communicated with the cavity, the first vacuum absorbing piece 151 is provided with a vacuum absorbing hole 153, and the vacuum absorbing hole 153 is communicated with the airflow channel 154, so that the air in the cavity can be ensured to flow out smoothly; when the external vacuum suction device is connected to the vacuum suction hole 153, the vacuum suction device is turned on, and air in the cavity flows out along the air flow channel 154, so that a vacuum state is formed in the cavity.

Referring to fig. 1 again, in a specific embodiment, after the vacuum absorbing member 15 is connected to an external vacuum absorbing device, the vacuum absorbing device is started to make the cavity of the mold in a vacuum state, and molten metal is injected from the gate 14; although a flow passage is not shown in the drawings, it should be understood that a flow passage should be provided between the gate 14 and the cavity, and the molten metal enters the cavity through the flow passage, and because the cavity formed by the core insert 161 and the core insert 162 is provided with sealing rings or sealing strips everywhere, it is ensured that air does not easily enter the cavity; when the molten metal cools, the driving device is activated to drive the connector 132 to slide the slide block 133 on the slide rail 134, so that the core 163 is far away from the core block 161 and the core block 162 to take out the workpiece.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. A mold sealing device, comprising:

a movable die plate (22) provided with a movable die core (162);

the fixed die plate (21) is provided with a fixed die core (161), and the movable die core (162) is matched with the fixed die core (161) to form a die cavity;

a first sealing ring (12) surrounding the movable mold core (162) and the fixed mold core (161) is arranged between the movable mold plate (22) and the fixed mold plate (21) so that the interior of the first sealing ring (12) is kept sealed.

2. The mold sealing device according to claim 1, wherein the fixed mold plate (21) is embedded with a first vacuum absorbing member (151), and a second sealing groove (1512) is further provided on a surface of the first vacuum absorbing member (151) facing the movable mold plate (22).

3. The mold sealing device according to claim 1, characterized in that a sliding mechanism (13) is further provided, said sliding mechanism (13) comprising:

a slider (133);

a connector (132) which is provided right in front of the slider (133) and is fixedly connected to the slider;

a pressing block (131) provided directly above the connector (132);

and a third sealing ring is arranged on the contact surface of the connector (132) and the fixed die plate (21)/the movable die plate (22), a third sealing strip (1321) is arranged in the connector, and a fourth sealing groove (1311) is arranged on the contact surface of the pressing block (131) and the connector (132).

4. The mold sealing device according to claim 3, wherein the movable platen (22)/the fixed platen (21) is provided with a first sealing groove, and the first sealing groove, the second sealing groove (1512) and the fourth sealing groove (1311) are tightly connected;

the first seal ring (12) is mounted in a first seal groove, a second seal groove (1512), and a fourth seal groove (1311).

5. The mold sealing device according to claim 3, wherein a fifth sealing groove (1621) is formed in the movable mold core (162) at a position where the movable mold core (162) is attached to the slider (133), and a fifth sealing strip is disposed in the fifth sealing groove (1621).

6. The mold sealing device according to claim 2, wherein the movable platen (22) is embedded with a second vacuum sucking member (152);

the first vacuum absorbing piece (151), the upward surface of the first vacuum absorbing piece (151) facing the movable template (22) is provided with first bulges (1511) which are arranged in an array in a concave mode;

the second vacuum absorbing piece (152) is arranged right below the first vacuum absorbing piece (151) and is tightly attached, and second bulges (1522) which are arranged in an array manner are arranged on the surface, facing the fixed template (21), of the second vacuum absorbing piece (152);

the movable mould plate (22) and the fixed mould plate (21) are matched, so that the first protrusions (1511) and the second protrusions (1522) are matched to form the air flow channels (154).

7. The mold sealing device according to claim 6, wherein a first cooling channel (1513) is provided in the first vacuum absorbing member (151);

and the side wall of the first vacuum absorbing piece (151) is provided with a vacuum absorbing hole (153) communicated with the air flow channel (154).

8. The mold sealing arrangement of claim 6, wherein a second cooling channel (1521) is provided in said second vacuum suction member (152).