WO2022126927A1

WO2022126927A1 - Integrated forming mold for new energy case with heat-dissipation fins

Info

Publication number: WO2022126927A1
Application number: PCT/CN2021/084015
Authority: WO
Inventors: 马广兴; 刘桂平; 奚道伟; 焦亚林
Original assignee: 苏州广型模具有限公司
Priority date: 2020-12-18
Filing date: 2021-03-30
Publication date: 2022-06-23
Also published as: CN112792314B; CN112792314A

Abstract

Provided is an integrated forming mold for a new energy case with heat-dissipation fins. The integrated forming mold comprises a fixed mold; a movable mold matching the fixed mold; and a pushing assembly, which is arranged at the bottom of the movable mold. The fixed mold comprises a fixed mold core, wherein a second forming portion for forming heat-dissipation fins is arranged in a first cavity in the fixed mold core, and several second cavities for forming the heat-dissipation fins are arranged in the second forming portion; and the fixed mold further comprises an auxiliary pushing assembly for pushing the heat-dissipation fins, wherein the auxiliary pushing assembly comprises a push rod and a pushing module that drives the push rod. When the pushing assembly pulls the movable mold to open the mold, the pushing module drives the push rod to extend into the second cavities, such that the heat-dissipation fins are prevented from getting stuck in the second cavities, thereby improving forming efficiency. The present invention is convenient to use and has a simple structure.

Description

An integral molding die for a new energy chassis with heat sinks

technical field

The invention belongs to the field of die casting, and in particular relates to an integral molding die for a new energy chassis with heat sinks.

Background technique

In the production of die-casting workpieces with thin thickness such as heat sinks, the corresponding mold features are deep grooves, and it is difficult to process the mold and polish the surface of the mold; at the same time, there are many and deep heat sinks, and the heat sink formed in the deep groove mold , the tightness of the deep groove is greater, so the risk of jamming the product is extremely high, and once the mold jams the product, it is difficult to clean the die castings remaining inside the mold. There is local deformation, and even more damage to the deep groove mold.

In view of this, it is necessary to develop an integrated mold for a new energy chassis with heat sinks to solve the above problems.

SUMMARY OF THE INVENTION

In view of the deficiencies existing in the prior art, the main purpose of the present invention is to provide an integrated molding die for a new energy chassis with heat sinks, which can push the heat sinks through the push rods in the auxiliary push assembly when the mold is opened, thereby assisting the Pushing the heat sink avoids the problem that the heat sink is difficult to escape from the fixed mold when the mold is opened due to the tightening force of the heat sink on the second cavity, thereby reducing the probability of jamming products and improving production efficiency.

In order to achieve the above-mentioned purpose and other advantages according to the present invention, an integral molding die for a new energy chassis with heat sinks is provided, including:

fixed mold;

a movable mold adapted to the fixed mold; and

a push-up assembly, which is arranged at the bottom of the movable mold;

Wherein, the fixed mold includes a fixed mold core, a first cavity in the fixed mold core is provided with a second forming part for forming a heat sink, and the second forming part has a number of built-in parts for forming a heat sink. the second cavity;

The fixed die also includes an auxiliary push assembly for pushing the heat sink, and the auxiliary push assembly includes a push rod and a push module for driving the push rod;

When the push assembly pulls the movable mold to open the mold, the push module drives the push rod to extend into the second cavity.

Preferably, the second forming part includes a plurality of pieces, and the pieces are stacked so that the second cavity for forming the heat sink is formed between two adjacent pieces.

Preferably, the blocks are fixedly connected by connecting parts to form an integral structure of the second forming part;

The connecting portion extends along the stacking direction of the pieces to connect the pieces.

Preferably, mold temperature oil pipes are arranged between the blocks, and the mold temperature oil pipes pass through the second forming part along the stacking direction of the blocks;

The extending direction of the connecting portion is parallel to the penetrating direction of the mold temperature oil pipeline.

Preferably, the fixed mold includes a mold base and a gate sleeve, the movable mold includes a movable mold core, and a core matched with the first cavity is provided on the movable mold core;

When the fixed mold and the movable mold are clamped, a cavity for forming a chassis is formed between the movable mold core and the fixed mold core, and the gate sleeve is inserted into the cavity;

The fixed die core is provided with a runner, and the runner branches out from the sprue sleeve and extends to one side of the first cavity, and the runner is close to the mold. The incident end of the cavity is arranged along the direction of one side of the first cavity.

Preferably, it also includes a side molding component; the side molding component is arranged on the side wall of the molding die for molding the shape of the upper side wall of the chassis;

The side molding assembly includes a first side molding assembly, and the first side molding assembly includes an insert and a driving module for driving the insert.

Preferably, a material guide portion corresponding to the sprue sleeve is installed on the insert;

When the movable mold core is attached to the fixed mold core, the material guide portion extends into the gate sleeve, and the material guide portion is provided with a material guide groove for guiding the flow of molten liquid;

The material guide groove is arranged corresponding to the runner, so that the molten liquid in the sprue sleeve flows into the runner along the material guide groove;

An end of the insert close to the core is provided with a feeding slot corresponding to the incident end, and the bottom surface of the feeding slot is a slope, so that the bottom surface of the feeding slot is inclined relative to the horizontal plane.

Preferably, the upper surface of the upper mold frame of the fixed mold is provided with a mounting groove for receiving the auxiliary push assembly, and the fixed mold core is installed on the corresponding lower surface of the mold frame;

The push rod penetrates into the second molding part from the bottom of the installation groove, and is driven into the second mold cavity by the push rod.

Preferably, the auxiliary push assembly includes a push plate, the push rod is mounted on the push plate, and the push plate is pushed by the push module to drive the push rod.

Preferably, a reset rod is installed on the push plate, and the reset rod extends into the fixed mold core to support the push plate, so as to limit the force deformation of the push plate when pushing the push rod ;

The fixed mold core includes a mold body, and the mold body is provided with a through hole for installing the second molding part;

The mold body is provided with a reset hole corresponding to the reset rod, and the reset hole is provided at a position outside the through hole.

Compared with the prior art, the beneficial effects of the present invention are:

The present invention provides an integrated molding die for a new energy chassis with heat sinks. When the mold is opened, the heat sinks are pushed by the push rods in the auxiliary push assembly, and the heat sinks are assisted to push the heat sinks. When the mold is opened, the heat sink is difficult to be released from the fixed mold, thereby reducing the probability of jamming products and improving the production efficiency. The invention has a simple structure and is convenient to use.

The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, and implement it according to the content of the description, the preferred embodiments of the present invention are described in detail below with the accompanying drawings. Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 is the three-dimensional structure schematic diagram in a preferred embodiment of the present invention;

Fig. 2 is the exploded schematic diagram in a preferred embodiment of the present invention;

FIG. 3 is a schematic three-dimensional structure diagram of a fixed mold in a preferred embodiment of the present invention;

Fig. 4 is the partial exploded schematic diagram of fixed mold in a preferred embodiment of the present invention;

5 is a schematic structural diagram of a fixed die core and a sprue sleeve in a preferred embodiment of the present invention;

6 is a schematic three-dimensional structure diagram of a second molding portion in a preferred embodiment of the present invention;

7 is a schematic three-dimensional structure diagram of a mold base in a preferred embodiment of the present invention;

8 is an exploded schematic diagram of an auxiliary push assembly in a preferred embodiment of the present invention;

FIG. 9 is a schematic three-dimensional structure diagram of a die-casting part in a preferred embodiment of the present invention;

Figure 10 is a front view of a die casting in a preferred embodiment of the present invention.

Shown in the picture:

1. Fixed mold;

11. Fixed mold kernel; 111. Mold body;

112, the second forming part; 1121, the block; 1122, the connecting part;

113, mold temperature oil pipeline; 114, reset hole; 115, notch;

12. Mold base; 121. Installation slot; 122. Pouring installation hole;

13. Auxiliary push component;

131, bottom plate; 132, push module; 133, push plate; 134, reset rod; 135, push rod;

14. Gate sleeve; 141. Outlet port;

2. Moving mold;

21, movable mold core; 22, core; 23, exhaust module;

3. The first side forming component; 31, the insert; 311, the feeding chute; 312, the molding surface; 33, the material guide part; 331, the material guide groove; 34, the drive module;

4. The second side forming component;

5. Die castings;

51, workpiece body; 511, bottom surface; 512, side wall;

52, runner part; 521, interface end;

53. Gate part;

6. Push components.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings, the foregoing and other objects, features, aspects and advantages of the present invention will become more apparent, so that those skilled in the art can refer to the description text to implement the described embodiments. Only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to refer to the same or like parts.

Unless otherwise defined, technical or scientific terms used herein should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first", "second" and similar terms used in the description of the patent application and the claims of the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Likewise, words such as "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one. Words like "include" or "include" mean that the elements or items appearing before "including" or "including" cover the elements or items listed after "including" or "including" and their equivalents, and do not exclude other component or object. "Up", "Down", "Left", "Right", etc. are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the size from top to bottom, "width" corresponds to the size from left to right, and "depth" corresponds to the size from front to back. These relative terms are for convenience of description and are generally not intended to require a specific orientation. Terms referring to attachment, coupling, etc. (eg, "connected" and "attached") refer to the fixed or attached relationship, as well as the movable or rigid attachment or relationship of these structures to each other, directly or indirectly, through intervening structures, unless The other way is explicitly stated.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, on the premise of no conflict, the embodiments or technical features described below can be combined arbitrarily to form new embodiments. .

1 to 8 of the present invention, it can be seen that an integral molding die for a new energy chassis with heat sinks includes:

Fixed mold 1;

A movable mold 2 adapted to the fixed mold 1; and

A push assembly 6 is arranged at the bottom of the movable mold 2; the movable mold 2 is driven by the push assembly 6 so that the fixed mold 1 and the movable mold 2 can be opened and closed and the movable mold 2 is pushed The die casting 5 covered on the movable die 2;

The fixed mold 1 includes: a fixed mold core 11, a first cavity is built in the fixed mold core 11, a second molding part 112 for molding is installed in the first cavity, and the second molding part 112 A number of deep grooves are built in to form the heat sink 513; and

The auxiliary pushing assembly 13 is used for pushing the components formed by the second molding part 112; the auxiliary pushing assembly 13 includes a pushing rod 135 and a pushing module 132 for driving the pushing rod 135; the auxiliary pushing The assembly 13 plays an auxiliary push function, when the push assembly 6 drives the movable mold 2 to open the mold, the auxiliary push assembly 13 moves with the movable mold 2;

The movable mold 2 includes a movable mold core 21 and a core 22 arranged on the movable mold core 21. The core 22 and the first cavity form the main structure of the new energy chassis, and the bottom of the core 22 is formed. The heat sink structure is formed.

Referring to FIGS. 9 and 10 , the die-casting part 5 formed by the integral molding die is shown in detail. The die-casting part 5 at least includes a workpiece body 51 serving as a chassis. At the same time, a number of heat sinks 513 are arranged on the bottom surface 511;

In a preferred embodiment, because the product has many and deep heat sinks, the wrapping force reaches 15-25T according to the theoretical calculation. In actual production, the product will be partially deformed, and the wrapping force is greater. Therefore, this product is ejected by springs. , the ejection force is completely insufficient, and the auxiliary ejection assembly 13 needs to be added to the fixed mold to push the heat sink of the product, and the auxiliary ejection assembly 13 must be ejected in time, if the ejection speed of the fixed mold 1 cannot keep up When the mold is opened, the product will be deformed or even cracked by the fixed mold 1. Therefore, before the mold is opened, the auxiliary push assembly 13 must be in a working state to ensure that the auxiliary push assembly 13 can remove the product heat sink in time. Push away from the stationary mold 1 so that the product moves away from the stationary mold 1 along with the movable mold 2 .

Wherein, the second forming part 112 includes a plurality of pieces 1121, and the pieces 1121 are stacked so that a cavity for forming the heat sink 513 is formed between two adjacent pieces 1121;

The auxiliary push assembly 13 includes a push rod 135 and a push module 132 for driving the push rod 135 . Under the drive of the push module 132 , the push rod 135 passes through the block 1121 It extends into the cavity between the blocks 1121 , so as to push the heat sink 513 formed in the cavity away from the second molding portion 112 .

In the existing molding equipment, due to the thin thickness of the product heat sink, the corresponding mold features are deep grooves, the mold processing is difficult, and it is difficult to polish the surface of the mold, so the risk of product jamming is extremely high. The solidified metal inside the mold is difficult to clean, which greatly affects the maintenance of the mold. In the molding mechanism, by dividing all the heat sinks into pieces 1121, the single piece 1121 is easy to process and the processing cost is reduced. At the same time, even if the product is stuck in the mold, the solidification can be removed by quickly disassembling the pieces 1121. Metal cleaning.

The molding mechanism further includes a mold base 12, the fixed mold core 11 is embedded on one side of the mold base 12, and the auxiliary push assembly 13 is installed on the other side corresponding to the mold base 12, The mold base 12 connects the auxiliary push assembly 13 and the stationary mold core 11 to form an integral stationary mold structure.

The upper surface of the mold base 12 is provided with a mounting groove 121 for receiving the auxiliary push assembly 13, and the fixed mold core 11 is installed on the corresponding lower surface of the mold base 12;

The push rod 135 penetrates into the second forming part 112 from the bottom of the installation slot 121 , and driven by the push module 132 , the push rod 135 continuously pushes the block 1121 Heat sinks for molded products.

The auxiliary push assembly 13 includes a push plate 133 , the push rod 135 is mounted on the push plate 133 , and the push plate 133 is pushed by the push module 132 to drive the push rod 135 .

The auxiliary push assembly 13 further includes a bottom plate 131, the bottom plate 131 is fixed on the mold frame 12, and the push module 132 is installed on the bottom plate 131;

Specifically, the auxiliary push assembly 13 is installed in the installation groove 121, so that the bottom plate 131 is flush with the upper surface of the mold base 12, and the push plate 133 can slide in the installation groove 121;

The bottom plate 131 and the mold base 12 are connected by a column, and the push plate 133 is sleeved on the column. When the push module 132 drives the push plate 133, the push plate 133 moves along the column. The axial direction of the column slides.

A reset rod 134 is installed on the push plate 133 , and the reset rod 134 extends into the fixed mold core 11 to support the push plate 133 , thereby restricting the push plate 133 from pushing the push rod 125 time deformation.

The fixed mold core 11 includes a mold body 111, and the mold body 111 is provided with a through hole for installing the second molding portion 112;

The mold body 111 is provided with a reset hole 114 corresponding to the reset rod 134 , and the reset hole 114 is provided at a position outside the through hole.

In a preferred embodiment, the ejection module 132 includes an ejection cylinder, and the push plate 133 is subjected to the force of the ejection cylinder (the ejection force reaches 32T). The push plate 133 is deformed, so that the ejection of the fixed die is unbalanced and the product is deformed; therefore, the reset rod 134 needs to be placed under the oil cylinder and supported by the reset rod 134 to avoid deformation of the push plate 133 . The clamping force on the fixed die side is relatively large, and the oil cylinder must be placed under the push rod 135, otherwise the larger clamping force will also deform the push plate 133, resulting in unbalanced ejection, which in turn causes product deformation, resulting in a good product. rate is lower.

The mold base 12 is provided with a pouring installation hole 122 that penetrates up and down. The pouring installation hole 122 is sleeved with a gate sleeve 14, and the molten liquid is injected into the gate sleeve 14, and the molten liquid flows along the gate. The sleeve 14 flows into the fixed die core 11 .

A cavity is formed between the fixed mold core 11 and the movable mold core 21 , and the gate sleeve 14 is connected to the cavity, so that a flow of molten liquid is formed between the cavity and the gate sleeve 14 aisle;

The fixed mold core 11 is provided with a cavity with a molding profile and a runner 116 connecting the cavity. The runner 116 is divided into a number of runners 1161 from the sprue sleeve 14 and extends to the On one side of the cavity, the incident end 1162 of the shunt channel 1161 close to the cavity is arranged along the side of the cavity, so that multiple positions of the cavity can be filled at the same time. To ensure adequate filling of the workpiece.

The die casting 5 formed by the forming mold at least includes a sprue portion corresponding to forming the sprue sleeve 14 , a runner portion 52 corresponding to forming the runner 116 , and a cavity shape formed as a The workpiece body 51 of the chassis;

The incident end 1162 of the runner 1161 is arranged on the side of the bottom surface 511 adjacent to the side wall 512; if the incident end 1162 is arranged on the side of the side wall 512, the heat sink 513 will hinder the molten liquid As a result, the molten liquid will bypass the formed part of the heat sink 513 to form the bottom surface 511 and the other side wall 512, so that it is difficult to fill the heat sink 513 and the forming is difficult; and the incident end 1162 is disposed adjacent to the bottom surface 511. When it is on one side of the side wall 512, the molten liquid will also be filled along the bottom surface 511, but when the molten liquid is filled to the outer wall of the end box, the molten liquid will be blocked and filled with the cooling fins 513 in the opposite direction. The fins are refilled to ensure filling quality.

The movable mold core is provided with a feeding slot 311 corresponding to the incident end 1162 , and a gate is formed through the feeding slot 311 and the incident end 1162 , and the molten liquid flows into the cavity along the gate.

The bottom surface of the feeding chute 311 is sloped, so that the bottom surface of the feeding chute 311 is inclined relative to the horizontal plane, so that the runner portion 52 of the molded die casting 5 corresponds to the sprue of the feeding chute 311 . The channel portion 52 is an interface end 521, and the lower surface of the interface end 521 is inclined;

If the incident angle of the runner 116 is horizontal, the molten liquid will be directly filled in the horizontal direction along the bottom surface 511, so that the side wall 512 cannot be filled, and if the incident angle of the runner 116 is vertical, only the side wall 512 can be filled; therefore, the runner 512 can only be filled. 116 needs a suitable incident angle, and the specific factor that affects the quality of die casting is the incident angle of the gate formed by the incident end 1162 and the material guide groove 331, and a more critical factor is the flow of the molten liquid. 331 design of guide chute;

Therefore, according to the weight ratio of the bottom surface 511 and the side wall 512 of the workpiece, the angle α formed by the bottom surface of the feeding slot 311 and the vertical direction ranges from 45° to 80°; in a preferred embodiment, the The angle α formed by the bottom surface of the feeding trough 311 and the vertical direction is 79°. When the runner 116 fills the cavity, the side wall and the plane of the product can be filled at the same time. By designing the incident angle and the vertical direction to be 79° The included angle is just enough to take into account the filling of the side wall 512 and the large plane in the horizontal direction.

The integral molding die further includes a side molding component; the side molding component is arranged on the side wall of the molding die for molding the shape of the upper side wall of the chassis; specifically, the side molding component is arranged on the movable mold 2 on the outer side wall;

The side molding components include a first side molding component 3 and a second side molding component 4, wherein the first side molding component 3 and the second side molding component 4 have similar structures, and the first side molding component 3 includes inserts 31 and a drive module 34 for driving the insert 31, the insert 31 is arranged on the side wall of the core 22;

The feeding slot 311 is arranged on the side of the insert 31 close to the core 22 , and the feeding slot 311 is recessed inward, so that the bottom surface of the feeding slot 311 is lower than the insert 31 . The molding surface 312 , more specifically, the molding surface 312 is parallel to the parting surface between the fixed die core 11 and the movable die core, and the bottom surface of the feeding slot 311 is inclined relative to the molding surface 312 .

The fixed die core 11 and the movable die core 21 are correspondingly provided with a vacant slot. When the fixed die core 11 and the movable die core 21 are fitted together, the set aside slot forms an opening, so The insert 31 protrudes into the opening and interferes with the core 22 .

A material guide portion 33 connected to the sprue sleeve 14 is also installed on the insert 31;

When the fixed mold core 11 is attached to the movable mold core 21, the material guide portion 33 extends into the gate sleeve 14, and the material guide portion 33 is provided with a guide for guiding the flow of the molten liquid. material guide trough 331;

The material guide trough 331 is disposed corresponding to the runner 116 , so that the molten liquid in the sprue sleeve 14 flows into the runner 116 along the material guide trough 331 .

A discharge port 141 is provided on the gate sleeve 14 , and the discharge port 141 corresponds to the material guide groove 331 , so that the discharge port 141 and the material guide groove 331 are spliced to form a discharge port.

The number of the runners 116 is not less than two, so that at least two runners 116 are guided by the sprue sleeve 14, so that the molten liquid can quickly pass through the discharge port and enter the cavity for filling, At the same time, considering the difference in fluidity of different molten liquids, a plurality of the runners 116 are provided to correspond to different positions of the molding cavity, so as to reduce the situation of insufficient filling that is easily caused by the flowing and filling of the molten liquid.

A notch 115 is provided on one side of the fixed mold core 11, and the position of the notch 115 is consistent with the position of the pouring installation hole 122 on the mold base 12. When the sprue sleeve 14 is inserted, The sprue sleeve 14 fits with the slot 115, and the molten liquid flows into the molded cavity.

The blocks 1121 are fixedly connected by the connecting parts 1122 to form the overall structure of the second forming part 112; the connecting parts 1122 extend along the stacking direction of the blocks 1121, so as to connect the blocks 1121, The block 1121 is fixed by the connecting portion 1122 .

The mold temperature oil pipeline 113 is arranged between the blocks 1121; because the wall thickness of the heat sink is relatively thin, the mold temperature has a great influence on the product molding; if the mold temperature is low, the heat sink will be under-cast and the molding will be poor; and the temperature If it is higher, it will cause the heat sink to burn and stick to the mold, and the long solidification time will affect the production tact. Therefore, the heat sink needs a certain molding temperature. A mold temperature oil pipe 113 is added in the middle of the mold heat sink block 1121, the mold is heated when the mold temperature is low, and the mold is cooled when the product solidifies, and the mold temperature oil temperature is controlled between 190°C and 210°C; The oil pipeline 113 passes through the block 1121 , and the mold temperature oil pipe 113 is convenient for fixing the block 1121 .

The mold temperature oil pipe 113 penetrates the second forming part 112 along the stacking direction of the blocks 1121; the extension direction of the connecting part 1122 is parallel to the penetration direction of the mold temperature oil pipe 113, and the mold temperature The warm oil pipeline 113 cooperates with the connecting portion 1122 to fix the pieces 1121, so that the pieces 1121 are spliced stably, and the molten liquid is prevented from overflowing from the gaps of the pieces 1121, thereby affecting the molding quality.

The movable mold 2 also includes an exhaust module 23. The exhaust module 23 is installed at the end of the flow channel of the movable mold core 21. During the die-casting process, the air originally in the cavity is released from the exhaust. The air is discharged from the air module 23. After the air is discharged, when the molten liquid fills the entire cavity, the molten liquid also flows into the flow channel originally used for exhaust, and solidifies in it.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form; any person of ordinary skill in the industry can smoothly implement the present invention as shown in the accompanying drawings and above; however, any Those skilled in the art, without departing from the scope of the technical solution of the present invention, make use of the above-disclosed technical content to make some changes, modifications and equivalent changes of evolution are equivalent embodiments of the present invention; at the same time, Any alteration, modification and evolution of any equivalent changes made to the above embodiments according to the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

An integrated molding die for a new energy chassis with heat sinks, characterized in that it includes:

Fixed mold (1);

a movable mold (2) adapted to the fixed mold (1); and

a push-up assembly (6), which is arranged at the bottom of the movable mold (2);

Wherein, the fixed mold (1) includes a fixed mold core (11), a first cavity in the fixed mold core (11) is provided with a second forming part (112) for forming a heat sink, the first cavity The second forming part (112) is built with a plurality of second cavities for forming the heat sink;

The stationary mold (1) further includes an auxiliary push assembly (13) for pushing the heat sink, the auxiliary push assembly (13) includes a push rod (135) and a push rod for driving the push rod (135). push module(132);

When the pushing assembly (6) pulls the movable mold (2) to open the mold, the pushing module (132) drives the push rod (135) to extend into the second cavity.
The integral molding die according to claim 1, characterized in that, the second molding part (112) comprises a plurality of pieces (1121), and the pieces (1121) are stacked so that two adjacent pieces (1121) are formed. 1121) to form the second cavity for forming the heat sink.
The integral molding die according to claim 2, characterized in that, the blocks (1121) are fixedly connected by connecting portions (1122) to form an integral structure of the second molding portion (112);

The connecting portion (1122) extends along the stacking direction of the pieces (1121) so as to connect the pieces (1121).
The one-piece molding die according to claim 3, characterized in that a mold temperature oil pipeline (113) is arranged between the blocks (1121), and the mold temperature oil pipe (113) is along the length of the block (1121). The stacking direction runs through the second forming part (112);

The extending direction of the connecting portion (1122) is parallel to the penetrating direction of the mold temperature oil pipeline (113).
The integral molding die according to any one of claims 1-4, characterized in that, the fixed die (1) comprises a die set (12) and a sprue sleeve (14), and the movable die (2) comprising a movable mold core (21), and a core (22) matched with the first cavity is provided on the movable mold core (21);

When the fixed mold (1) and the movable mold (2) are clamped, a cavity for forming a chassis is formed between the movable mold core (21) and the fixed mold core (11). The mouth cover (14) is connected to the cavity;

The fixed die core (11) is provided with a runner (116), and the runner (116) branches out from the sprue sleeve (14) into a plurality of runners (1161) extending to the first type On one side of the cavity, the incident end (1162) of the shunt channel (1161) close to the cavity is arranged along the direction of one side of the first cavity.
The one-piece molding die according to claim 5, further comprising a side molding component; the side molding component is disposed on the side wall of the molding die for molding the shape of the upper side wall of the chassis;

The side forming assembly includes a first side forming assembly (3), and the first side forming assembly (3) includes an insert (31) and a driving module (34) for driving the insert (31).
The integral molding die according to claim 6, characterized in that, a material guide portion (33) corresponding to the sprue sleeve (14) is installed on the insert (31);

When the movable mold core (21) is attached to the fixed mold core (11), the material guide portion (33) extends into the gate sleeve (14), and the material guide portion (33) extends into the gate sleeve (14). ) is provided with a guide groove (331) for guiding the flow of molten liquid;

The material guide groove (331) is disposed corresponding to the runner (116), so that the molten liquid in the sprue sleeve (14) flows into the runner (116) along the material guide groove (331) ;

An end of the insert (31) close to the core (22) is provided with a feeding slot (311) corresponding to the incident end (1162), and the bottom surface of the feeding slot (311) is sloped so that the bottom surface of the feeding chute (311) is inclined with respect to the horizontal plane.
The one-piece molding die according to claims 1-4, characterized in that, the upper surface of the upper die frame (12) of the fixed die (1) is provided with a mounting for holding the auxiliary pushing assembly (13) a groove (121), the fixed mold core (11) is installed on the corresponding lower surface of the mold base (12);

The push rod (135) penetrates into the second forming part (112) from the bottom of the installation groove (121), and driven by the push module (132), the push rod ( 135) into the second cavity.
The integral molding die according to claim 8, characterized in that, the auxiliary push assembly (13) comprises a push plate (133), and the push rod (135) is mounted on the push plate (133), and passes through the push plate (133). The push module (132) pushes the push plate (133) to drive the push rod (135).
The integral molding die according to claim 9, wherein a reset rod (134) is installed on the push plate (133), and the reset rod (134) extends into the fixed mold core (11) , to support the push plate (133), so as to limit the force deformation of the push plate (133) when pushing the push rod (125);

The fixed mold core (11) includes a mold body (111), and the mold body (111) is provided with a through hole for installing the second molding portion (112);

The mold body (111) is provided with a reset hole (114) corresponding to the reset rod (134), and the reset hole (114) is provided at a position outside the through hole.