CN206869022U - Die assembly - Google Patents

Abstract

The utility model provides a mold assembly, comprising: a sprue cup; a flow guide device, which is located under the sprue cup, and the flow guide device includes a flow guide channel, and the feed port of the flow guide channel is inserted into the first outlet of the sprue cup Inside; at least one mold shell component is located under the flow guide device, connected to the discharge port of the flow guide device, and the discharge port faces away from the sprue cup; wherein, at least one module component is a hollow cavity inside. The utility model is provided with a diversion device, and after the metal liquid flows through the diversion device whose inner diameter of the feed inlet is smaller than the inner diameter of the first outlet, the flow velocity of the metal liquid is slowed down, the centrifugal effect of the metal liquid is reduced, and the metal liquid is made by at least The cavity of at least one formwork component is filled layer by layer at the bottom of a formwork component to ensure the quality of the casting; furthermore, part of the liquid metal will flow into the gap between the outer wall of the feed inlet and the inner wall of the first outlet, The metal liquid will solidify in this gap, which ensures the airtightness of the overall structure.

Description

Die Components

technical field

The utility model relates to the technical field of casting devices, in particular to a mold assembly.

Background technique

At present, my country's coated sand casting is in its infancy stage, and the biggest highlight of coated sand casting is the simultaneous casting of multiple layers of molds. In the related art, as shown in Figures 1 to 4, the formwork part 10' includes: a lower formwork and an upper formwork, the lower formwork and the upper formwork cooperate to form a hollow cavity inside, and the casting metal liquid fills the cavity The desired casting is formed after the interior. The coated sand mold assembly 1' is that at least one formwork part 10' is stacked together to form a formwork group, and the sprue cup 20' is arranged on the uppermost layer of the formwork group, so a stacked casting mold is formed. Since the sprue cup 20' of this kind of coated sand mold assembly 1' is located above the formwork group, the internal space of the metal liquid increases suddenly after leaving the sprue cup 20'. Under the action of the centrifugal force generated during the pouring process, the metal liquid It will spread to the surroundings, and the metal liquid that enters the formwork group will not continue to provide the required metal liquid to the upper cavity due to gravity, but will give priority to the lowest module components, resulting in the upper cavity due to lack of timely replenishment of metal. The liquid is cooled and solidified, which in turn affects the inflow of the subsequent metal liquid, so that the side of the mold shell group close to the sprue cup 20' will have problems of insufficient filling to varying degrees, and even the phenomenon that the casting fails to fill the empty shell, making the Consumables are large and the yield of castings is low, which greatly increases the production cost of castings.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art or the related art.

Therefore, an object of the present utility model is to provide a mold assembly.

In view of this, according to an object of the present utility model, a mold assembly is proposed, including: a sprue cup; a flow guide device, located under the sprue cup, the flow guide device includes a flow guide channel, and the feed of the flow guide channel The mouth is inserted into the first outlet of the sprue cup; at least one mold shell component is located under the flow guide device, connected to the discharge port of the flow guide device, and the discharge port faces away from the sprue cup; wherein, at least one module component is an internal hollow cavity.

A mold component provided by the utility model includes: a sprue cup, a flow guiding device and at least one mold shell component. By setting the guide device so that the feed port of the guide channel of the guide device is inserted into the first outlet of the sprue cup, when the metal liquid is poured into the mold assembly, the metal liquid enters the mold assembly from the sprue cup and flows through the After the deflector with the inner diameter of the feed inlet smaller than the inner diameter of the first outlet, the flow path of the metal liquid is extended, the volume of the metal liquid flowing through the flow guide device per unit area is reduced, the flow velocity of the metal liquid is slowed down, and the metal liquid is reduced. The centrifugation of the liquid makes the metal liquid reach the bottom of at least one formwork component due to gravity, and then fills the cavity of at least one formwork component layer by layer, which ensures the quality of the casting, improves the yield, and reduces the Production cost and energy consumption; further, the feed port of the diversion channel is inserted into the first outlet of the sprue cup, so that part of the metal liquid will flow into the gap between the outer wall of the feed port and the inner wall of the first outlet, cooled by air , the metal liquid will solidify in the gap, and then the sprue cup and the flow guide device will be firmly connected together, ensuring the airtightness of the overall structure and reducing the probability of defects such as holes in the casting. Simultaneously, the structure is reasonably arranged, less consumables, simple processing technology, easy to assemble, and easy to popularize.

According to the above-mentioned mold assembly of the utility model, it can also have the following additional technical features:

In the above technical solution, preferably, the flow guide device further includes a buffer table, the flow guide channel is arranged in the inner hole of the buffer table, the end surface of the feed inlet protrudes from the upper end surface of the buffer table, and the upper end surface faces the sprue cup.

In this technical solution, by setting the guide channel in the inner hole of the buffer table, the end face of the feed port protrudes from the upper end face of the buffer table, so that when the guide device is assembled with the sprue cup, the feed of the guide channel The gate is inserted into the first outlet of the sprue cup, and the end surface of the first outlet of the sprue cup is set against the upper end surface of the buffer table, thereby ensuring the accuracy and stability of the overall structure assembly. When the metal liquid flows through the guide due to gravity When the flow device is used, part of the metal liquid will flow into the gap between the feed inlet, the first outlet and the upper end surface of the buffer table. After cooling by the air, the metal liquid will solidify in the gap, and then the sprue cup and the guide The flow devices are firmly connected together to ensure the airtightness of the overall structure and reduce the probability of holes in the casting. At the same time, the structure is simple to set, easy to process, and has strong interchangeability.

In any of the above technical solutions, preferably, the end face of the feed port is provided with chamfers.

In this technical solution, the chamfer provided on the end face of the feed port has a guiding effect relative to the first outlet. By setting the chamfer on the end face of the feed port, the flow guiding device can enter the first gate of the sprue cup accurately and smoothly. The outlet is easy to assemble, thereby improving the assembly efficiency of the overall structure, and the chamfering structure is simple and easy to process.

In any of the above technical solutions, preferably, at least one formwork component is provided with a second inlet and a second outlet adapted to the second inlet, the second inlet is inserted into the discharge port, and at least one module component is connected to the flow guide The devices are connected together; wherein at least one formwork component is connected together through the second inlet and the second outlet.

In this technical solution, at least one formwork component is provided with a second inlet and a second outlet adapted to the second inlet, and when the at least one formwork component is assembled with the flow guiding device, the second inlet is inserted into the discharge port, When the metal liquid flows through at least one formwork assembly due to gravity, part of the metal liquid will flow into the gap between the second inlet and the discharge port, and after cooling by the air, the metal liquid will solidify in the gap, thereby making The deflector is firmly connected with at least one formwork component, which ensures the airtightness of the overall structure and reduces the probability of defects such as holes in the casting; further, at least one formwork component passes through the second inlet and the second The outlets are connected together, and when the metal liquid flows through at least one formwork assembly due to gravity, part of the metal liquid will flow into the gap between the second inlet and the second outlet, and after cooling by the air, the metal liquid will solidify in the space between the second inlet and the second outlet. In the gap, at least one formwork component is firmly connected together, which ensures the stability and airtightness of the overall structure. At the same time, the structural arrangement is convenient for processing, low in production cost and high in assembly efficiency.

In any of the above technical solutions, preferably, the outlet is a groove structure.

In this technical solution, the outlet is a groove structure, so that when the flow guiding device is assembled with at least one module component, the end face of the second inlet is set against the inner wall of the groove structure, thereby ensuring the accuracy and stability of the overall structure assembly When the metal liquid flows through at least one module component due to gravity, part of the metal liquid will flow into the gap between the second inlet and the discharge port, and after cooling by the air, the metal liquid will solidify in the gap, and then The flow guiding device is firmly connected with at least one module component, so as to ensure the airtightness of the overall structure and reduce the probability of defects such as holes in the casting. At the same time, the structure is simple to set, easy to process, and has strong interchangeability.

In any of the above technical solutions, preferably, the flow guide device has an integrated structure.

In this technical solution, the flow guiding device is of an integral structure, compact and reliable, which facilitates the assembly of the flow guiding device, the sprue cup and at least one formwork component, and has a good sealing effect.

In any of the above technical solutions, preferably, the number of at least one formwork component is five.

In this technical solution, the number of at least one formwork assembly is 5, and after the liquid metal enters the mold assembly from the sprue cup, it flows through the guide device, and then the metal liquid reaches the last of the 5 formwork assemblies by the action of gravity. After the bottom, the cavities of the five formwork components are filled layer by layer, which ensures the quality of the casting, improves the yield, and reduces production costs and energy consumption.

In any of the above technical solutions, preferably, the first inlet of the sprue cup is arranged opposite to the first outlet, and the inner diameter of the first inlet is larger than the inner diameter of the first outlet.

In this technical solution, by setting the first inlet opposite to the first outlet on the sprue cup, the inner diameter of the first inlet is larger than the inner diameter of the first outlet, which facilitates pouring the metal liquid into it and reduces the cost of pouring metal. Requirements for position restriction of the liquid; further, the inner diameter of the first inlet is greater than the inner diameter of the first outlet, and when the metal liquid is poured into the sprue cup, part of the metal liquid will be accumulated in the first outlet, thereby slowing down the flow of the metal liquid. The flow rate reduces the centrifugation of the metal liquid.

In any of the above technical solutions, preferably, the distance from the outer wall of the feed inlet to the inner wall of the first outlet ranges from 2mm to 5mm.

In this technical solution, by reasonably setting the distance from the outer wall of the feed inlet to the inner wall of the first outlet, the value ranges from 2 mm to 5 mm. On the premise of ensuring the stability of the assembly of the sprue cup and the flow guide device, So that when the metal liquid is poured into the mold assembly, the metal liquid enters the mold assembly from the sprue cup and flows through the flow guide device whose inner diameter of the feed port is smaller than the inner diameter of the first outlet, thus prolonging the flow path of the metal liquid and reducing the unit area The volume of the metal liquid flowing through the flow guiding device slows down the flow velocity of the metal liquid, reduces the centrifugal effect of the metal liquid, and then makes the metal liquid reach the bottom of at least one formwork component due to gravity, and then layer by layer at least The cavity of a mold shell assembly is filled to ensure the quality of the casting. At the same time, part of the liquid metal will flow into the gap between the outer wall of the feed inlet and the inner wall of the first outlet. After cooling by the air, the liquid metal will solidify in the gap , so that the sprue cup and the deflector are firmly connected together, ensuring the airtightness of the overall structure and reducing the probability of defects such as holes in the casting.

In any of the above technical solutions, preferably, the mold assembly is a coated sand mold assembly for foundry.

In this technical solution, the coated sand mold assembly for casting improves the quality of the casting while ensuring the stability and airtightness of the overall assembly structure by reasonably setting the structure of the sprue cup, the flow guide device and at least one mold shell assembly. The quality of castings is improved, the yield of castings is improved, and the production cost and energy consumption are reduced.

Additional aspects and advantages of the invention will become apparent in the description which follows, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is the front view of the mold assembly in the related art;

Fig. 2 is a structural representation of a mold assembly in the related art;

Fig. 3 is the front view of the formwork part in the related art;

Fig. 4 is a schematic structural view of a formwork part in the related art;

Fig. 5 is the front view of the mold assembly of one embodiment of the utility model;

Fig. 6 is a schematic structural view of a mold assembly according to an embodiment of the present invention;

Fig. 7 is a schematic structural view of a flow guiding device in an embodiment of the present invention;

Fig. 8 is a front view of a deflector in an embodiment of the present invention;

Fig. 9 is a sectional view along A-A of the deflector of the embodiment shown in Fig. 8;

FIG. 10 is a top view of the flow guiding device of the embodiment shown in FIG. 8 .

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 4 is:

1' coated sand mold assembly, 10' formwork shell, 20' sprue cup;

The corresponding relationship between reference numerals and part names in Fig. 5 to Fig. 10 is:

1 mold assembly, 10 sprue cup, 20 diversion device, 202 feed port, 204 discharge port, 206 buffer table, 30 mold shell assembly.

detailed description

In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described here, therefore, the protection scope of the utility model is not limited by the following limitations of the specific embodiments disclosed.

The refrigerator according to some embodiments of the present utility model will be described below with reference to FIGS. 5 to 10 .

As shown in Fig. 5 to Fig. 9, the embodiment of the first aspect of the present utility model proposes a mold assembly 1, comprising: a sprue cup 10; Including a diversion channel, the inlet 202 of the diversion channel is inserted into the first outlet of the sprue cup 10; at least one formwork assembly 30, located under the diversion device 20, connected to the outlet 204 of the diversion device 20, The discharge port 204 faces away from the sprue cup 10; wherein, at least one module component is a hollow cavity inside.

A mold assembly 1 provided by the utility model includes: a sprue cup 10 , a flow guiding device 20 and at least one mold shell assembly 30 . By setting the guide device 20 so that the feed port 202 of the guide channel of the guide device 20 is inserted into the first outlet of the sprue cup 10, when the metal liquid is poured into the mold assembly 1, the metal liquid enters from the sprue cup 10 After the mold assembly 1, after flowing through the guide device 20 with the inner diameter of the feed inlet 202 smaller than the inner diameter of the first outlet, the flow path of the metal liquid is extended, the volume of the metal liquid flowing through the guide device 20 in a unit area is reduced, and the flow rate is slowed down. The flow rate of the metal liquid is reduced, the centrifugal effect of the metal liquid is reduced, and then the metal liquid reaches the bottom of at least one formwork assembly 30 due to gravity, and then the cavity of at least one formwork assembly 30 is filled layer by layer, ensuring The quality of the casting is improved, the yield is improved, and the production cost and energy consumption are reduced; further, the feed port 202 of the diversion channel is inserted into the first outlet of the sprue cup 10, so that part of the metal liquid will flow into the feed port 202 The gap between the outer wall and the inner wall of the first outlet is cooled by the air, and the metal liquid will solidify in the gap, so that the sprue cup 10 and the flow guide device 20 are firmly connected together, ensuring the airtightness of the overall structure , to reduce the probability of forming holes in castings. Simultaneously, the structure is reasonably arranged, less consumables, simple processing technology, easy to assemble, and easy to popularize.

In one embodiment of the present invention, preferably, as shown in FIGS. The end surface protrudes from the upper end surface of the buffer platform 206 , and the upper end surface faces the sprue cup 10 .

In this embodiment, by setting the guide channel in the inner hole of the buffer table 206, the end surface of the feed port 202 protrudes from the upper end surface of the buffer table 206, so that when the guide device 20 is assembled with the sprue cup 10, the guide The feed port 202 of the flow channel is inserted into the first outlet of the sprue cup 10, and the end surface of the first outlet of the sprue cup 10 is set against the upper end surface of the buffer table 206, thereby ensuring the accuracy and stability of the overall structure assembly, When the metal liquid flows through the guide device 20 due to gravity, part of the metal liquid will flow into the gap between the feed inlet 202, the first outlet and the upper surface of the buffer table 206, and the metal liquid will solidify after being cooled by the air. In this gap, the sprue cup 10 and the deflector 20 are firmly connected together, which ensures the airtightness of the overall structure and reduces the probability of defects such as holes in the casting. At the same time, the structure is simple to set, easy to process, and has strong interchangeability.

In one embodiment of the present invention, preferably, the end surface of the feed port 202 is provided with chamfers.

In this embodiment, the chamfer provided on the end face of the feed port 202 has a guiding effect relative to the first outlet. By setting the chamfer on the end face of the feed port 202, the flow guiding device 20 can enter the sprue cup accurately and smoothly. The first outlet of 10 is easy to assemble, thereby improving the assembly efficiency of the overall structure, and the chamfering structure is simple and easy to process.

In one embodiment of the present invention, preferably, at least one formwork assembly 30 is provided with a second inlet and a second outlet adapted to the second inlet, the second inlet is inserted into the discharge port 204, and at least one The module components are connected with the flow guiding device 20; wherein, at least one formwork component 30 is connected together through the second inlet and the second outlet.

In this embodiment, at least one formwork component 30 is provided with a second inlet and a second outlet adapted to the second inlet, and when the at least one formwork component 30 is assembled with the deflector 20, the second inlet is inserted In the feed port 204, when the metal liquid flows through at least one formwork assembly 30 due to gravity, part of the metal liquid will flow into the gap between the second inlet and the discharge port 204, and the metal liquid will solidify after being cooled by air In this gap, the deflector 20 and at least one formwork assembly 30 are firmly connected together, ensuring the airtightness of the overall structure and reducing the probability of holes-like defects in the casting; further, at least one formwork assembly The components 30 are connected together through the second inlet and the second outlet. When the metal liquid flows through at least one formwork component 30 due to gravity, part of the metal liquid will flow into the gap between the second inlet and the second outlet. After being cooled by the air, the liquid metal will solidify in the gap, so that at least one formwork component 30 is firmly connected together, ensuring the stability and airtightness of the overall structure. At the same time, the structural arrangement is convenient for processing, low in production cost and high in assembly efficiency.

In one embodiment of the present invention, preferably, the outlet 204 is a groove structure.

In this embodiment, the discharge port 204 is a groove structure, so that when the flow guiding device 20 is assembled with at least one module component, the end surface of the second inlet is set against the inner wall of the groove structure, thereby ensuring the accuracy of the overall structure assembly And stability, when the metal liquid flows through at least one module component due to gravity, part of the metal liquid will flow into the gap between the second inlet and the discharge port 204, and after cooling by the air, the metal liquid will solidify in the gap In this way, the flow guiding device 20 is firmly connected with at least one module component, which ensures the airtightness of the overall structure and reduces the probability of defects such as holes in the casting. At the same time, the structure is simple to set, easy to process, and has strong interchangeability.

In one embodiment of the present invention, preferably, the flow guiding device 20 is an integral structure.

In this embodiment, the deflector 20 is an integral structure, compact and reliable, which facilitates the assembly of the deflector 20 with the sprue cup 10 and at least one formwork component 30 , and has a good sealing effect.

In an embodiment of the present invention, preferably, the number of at least one formwork component 30 is five.

In this embodiment, the number of at least one formwork assembly 30 is five, and after the molten metal enters the mold assembly 1 from the sprue cup 10, it flows through the guide device 20, and then the molten metal reaches the five molds by gravity. The bottom of the shell assembly 30 fills the cavities of the five mold shell assemblies 30 layer by layer, which ensures the quality of the casting, improves the yield, and reduces production costs and energy consumption.

In one embodiment of the present invention, preferably, the first inlet of the sprue cup 10 is arranged opposite to the first outlet, and the inner diameter of the first inlet is larger than the inner diameter of the first outlet.

In this embodiment, by setting the first inlet opposite to the first outlet on the sprue cup 10, the inner diameter of the first inlet is larger than the inner diameter of the first outlet, which facilitates pouring the metal liquid into it and reduces the pouring pressure. Position restriction requirements for metal liquid; further, the inner diameter of the first inlet is larger than the inner diameter of the first outlet, when pouring the metal liquid into the sprue cup 10, some metal liquid will be accumulated in the first outlet, thereby slowing down the metal The flow rate of the liquid reduces the centrifugal effect of the metal liquid.

In one embodiment of the present invention, preferably, the distance from the outer wall of the feed inlet 202 to the inner wall of the first outlet is in the range of 2 mm to 5 mm.

In this embodiment, by reasonably setting the distance from the outer wall of the feed inlet 202 to the inner wall of the first outlet so that the value ranges from 2 mm to 5 mm, the stability of the assembly of the sprue cup 10 and the flow guiding device 20 is ensured. Under the premise, when the metal liquid is poured into the mold assembly 1, after the metal liquid enters the mold assembly 1 from the sprue cup 10, after flowing through the flow guide device 20 whose inner diameter is smaller than the inner diameter of the first outlet, the metal liquid is extended. The flow track reduces the volume of the metal liquid flowing through the flow guiding device 20 per unit area, slows down the flow velocity of the metal liquid, reduces the centrifugal effect of the metal liquid, and then makes the metal liquid reach at least one formwork due to gravity At the bottom of the component 30, the cavity of at least one mold shell component 30 is filled layer by layer to ensure the quality of the casting. With the cooling of the air, the metal liquid will solidify in the gap, and then the sprue cup 10 and the deflector 20 are firmly connected together, which ensures the airtightness of the overall structure and reduces the probability of defects such as holes in the casting.

In one embodiment of the present invention, preferably, the mold assembly 1 is a coated sand mold assembly 1 for foundry.

In this embodiment, the coated sand mold assembly 1 for casting is reasonably arranged with the structure of the sprue cup 10, the flow guiding device 20 and at least one mold shell assembly 30, while ensuring the stability and airtightness of the overall assembly structure. , improve the quality of castings, improve the yield of castings, and reduce production costs and energy consumption.

In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "connection", "fixed" and other terms should be interpreted in a broad sense, for example, "connection" can be fixed connection, detachable connection, or integral connection; "connection" can be directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in the present application. Novel at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A mold assembly, characterized in that, comprising: sprue cup; A diversion device, located under the sprue cup, the diversion device includes a diversion channel, and the feed port of the diversion channel is inserted into the first outlet of the sprue cup; At least one formwork component is located under the deflector, connected to the discharge port of the deflector, and the discharge port faces away from the sprue cup; Wherein, the at least one module component is a hollow cavity inside. 2. The mold assembly of claim 1 wherein, The flow guide device also includes a buffer table, the flow guide channel is set in the inner hole of the buffer table, the end face of the feed port protrudes from the upper end face of the buffer table, and the upper end face faces the pouring cup. 3. The mold assembly of claim 2, wherein, The end face of the feed port is provided with chamfers. 4. The mold assembly of claim 1 wherein, The at least one formwork component is provided with a second inlet and a second outlet adapted to the second inlet, the second inlet is inserted into the discharge port, and the at least one module component is connected to the guide stream devices connected together; Wherein, the at least one formwork component is connected together through the second inlet and the second outlet. 5. A mold assembly according to any one of claims 1 to 4, wherein, The outlet is a groove structure. 6. A mold assembly according to any one of claims 1 to 4, wherein The flow guiding device has an integrated structure. 7. A mold assembly according to any one of claims 1 to 4, wherein The number of the at least one formwork component is five. 8. A mold assembly according to any one of claims 1 to 4, wherein The first inlet of the sprue cup is opposite to the first outlet, and the inner diameter of the first inlet is larger than the inner diameter of the first outlet. 9. A mold assembly according to any one of claims 1 to 4, wherein The range of the distance from the outer wall of the feed inlet to the inner wall of the first outlet is 2 mm to 5 mm. 10. The mold assembly of any one of claims 1 to 4, wherein The mold assembly is a coated sand mold assembly for casting.