CN114986807A

CN114986807A - Injection mould

Info

Publication number: CN114986807A
Application number: CN202210622693.2A
Authority: CN
Inventors: 李文哲
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-02

Abstract

The invention provides an injection mold, comprising: a casting system and a first cavity plate; the fixed die is arranged between the pouring system and the first cavity plate and is connected with the pouring system and the first cavity plate; the first movable die is connected with the first cavity plate, the fixed die and the first movable die are located on two sides of the first cavity plate, the fixed die and the first cavity plate enclose a first cavity, the first movable die and the first cavity plate enclose a second cavity, and the first cavity and the second cavity are communicated with the pouring system. According to the injection mold provided by the invention, the fixed mold is arranged between the pouring system and the first cavity plate, so that the first cavity plate and the fixed mold enclose the first cavity plate, and the first cavity plate and the first movable mold enclose the second cavity plate, so that the injection molding of materials is respectively realized, a plurality of products are molded at one time, the production efficiency of the mold is improved, and the production cost is reduced.

Description

Injection mould

Technical Field

The invention relates to the technical field of injection molds, in particular to an injection mold.

Background

At present, in the manufacturing industry, when the demand of the molded product is large, the following two methods are generally adopted: one method is to open two or more sets of moulds and simultaneously use a plurality of injection molding machines for production, thereby improving the yield; another mode is to adopt a laminated mold to improve the production efficiency as shown in fig. 1 to 4, and as shown in fig. 1 and 2, includes a first set of mold 1 'and a second set of mold 2', the two sets of molds are arranged in a laminated manner, which increases the cost and thickness of the molds, as shown in fig. 3 and 4, the molds include a hot runner 3 ', and a medium is injected into a cavity through the hot runner 3', so as to mold a product.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, the invention provides an injection mold.

In view of the above, the present invention provides an injection mold, including: a casting system and a first cavity plate; the fixed die is arranged between the pouring system and the first cavity plate and is connected with the pouring system and the first cavity plate; the first movable die is connected with the first cavity plate, the fixed die and the first movable die are located on two sides of the first cavity plate, the fixed die and the first cavity plate enclose a first die cavity, the first movable die and the first cavity plate enclose a second die cavity, and the first die cavity and the second die cavity are communicated with the pouring system.

The invention provides an injection mold, which comprises a pouring system, a first cavity plate, a fixed mold and a first movable mold, wherein the fixed mold is arranged between the pouring system and the first cavity plate, the fixed mold is connected with the pouring system, the first cavity plate is connected with the fixed mold in an openable manner, and the first movable mold is connected with the first cavity plate in an openable manner, namely the pouring system, the fixed mold, the first cavity plate and the first movable mold are sequentially arranged, so that a first mold cavity is enclosed between the fixed mold and the first cavity plate, a second mold cavity is enclosed between the first cavity plate and the first movable mold, injection molding of materials is realized, namely, injection molding of materials is respectively realized through the first mold cavity and the second mold cavity on two sides of the first cavity plate, a plurality of products are molded at one time, the production efficiency of the mold is improved, and the production cost is reduced.

Wherein, the gating system communicates with first die cavity and second die cavity, can be to the interior pouring material of first die cavity and second die cavity through the gating system to realize the shaping of material.

In addition, in the technical scheme that this application provided, first die cavity board forms first die cavity and second die cavity with cover half, first movable mould respectively, has improved the utilization ratio of first die cavity board, has further reduced the holistic thickness of mould. Meanwhile, the first cavity plate is thin, and a supporting structure is not required to be arranged at the bottom of the first cavity plate, so that the overall occupied space of the mold is reduced, and the production cost of the injection mold is reduced.

Among the correlation technique, use two sets of conventional moulds combination after rotatory 180, the sharing part is few, and among the technical scheme that this application provided, in one set of conventional mould, insert at least partly of a movable mould, form these two die cavitys of first die cavity and second die cavity, and then realize a plurality of products of one shot forming, promote product efficiency, like this, the whole thickness of mould does not exceed 1.5 times of conventional mould, the quantity of mould has been reduced, the holistic thickness of mould has significantly reduced.

It should be noted that the gating system is connected to the injection molding machine, and is used to inject the material in the state into the first mold cavity and the second mold cavity, so as to realize the molding of the material in the first mold cavity and the second mold cavity.

The injection mold provided by the invention can also have the following additional technical characteristics:

in some possible designs, the injection mold further comprises: the first cold runner is arranged on the first cavity plate and communicated with the pouring system, and the first cavity and the second cavity are communicated through the first cold runner.

In this design, injection mold still includes first cold runner, and first die cavity and second die cavity are linked together through first cold runner for first die cavity and second die cavity are established ties through first cold runner and are got up, and wherein, first cold runner sets up on first die cavity board, and be linked together with the gating system, and like this, when pouring, the material passes through the gating system and flows to first die cavity and second die cavity respectively through first cold runner, makes the material at first die cavity and the shaping of second die cavity intracavity.

It can be understood that the first cold runner is arranged on the first cavity plate, and the thickness of the first cavity plate is smaller, so that the length of the first cold runner is smaller, and material loss is reduced. That is, the gating system communicates the first die cavity and the second die cavity respectively through a small section of cold runner, so that the design of a gating flow path is simplified under the condition that the number of the die cavities is increased, the overall thickness of the die is reduced, the overall occupied space of the die is reduced, and the production cost of the injection mold is reduced.

In some possible designs, the gating system includes: the injection molding nozzle is connected with the fixed mold; the hot runner is connected with the fixed die, one end of the hot runner is communicated with the injection molding nozzle, and the other end of the hot runner is communicated with the first cold runner.

In the design, the pouring system comprises an injection molding nozzle and a hot runner, the injection molding nozzle and the hot runner are connected with the fixed die, the injection molding nozzle is communicated with the hot runner, and the hot runner is communicated with the first cold runner.

It can be understood that, among the technical scheme that this application provided, adopt the hot runner to communicate first die cavity and second die cavity respectively, through the first cold runner of very short section, establish ties first die cavity and second die cavity, share a mouth of moulding plastics, guarantee that die cavity quantity increases the unchangeable of hot runner quantity when one time, simplified the design of runner, and then reduced manufacturing cost, reduced the thickness of mould.

It can be understood that a heating device is arranged inside the hot runner or outside the hot runner and used for heating the hot runner, so that materials are kept in a molten state in the hot runner, material loss is avoided, and processing cost is reduced. Meanwhile, the first cold runner is short in length, loss of materials can be reduced, and processing cost is reduced.

In some possible designs, the injection mold further comprises: the second cold runner is communicated with the first cold runner and the first die cavity; and the third cold runner is communicated with the first cold runner and the second die cavity.

In the design, the injection mold further comprises a second cold runner and a third cold runner, and the second cold runner is communicated with the first cold runner and the first mold cavity, so that materials in the hot runner flow to the second cold runner through the first cold runner and further flow to the first mold cavity, and molding in the first mold cavity is realized; the third cold runner is communicated with the first cold runner and the second die cavity, so that materials in the hot runner can flow to the third cold runner through the first cold runner and further flow to the second die cavity, and forming in the second die cavity is achieved. Through the arrangement of the first mold cavity and the second mold cavity, the injection mold can be used for molding a plurality of products at one time, the production cost is reduced, and the manufacturing efficiency is improved.

According to the technical scheme, the first die cavity and the second die cavity share the injection molding nozzle and the hot runner, the first die cavity is filled with materials through the first cold runner and the second cold runner, the second die cavity is filled with materials through the first cold runner and the third cold runner, the materials are filled in through the mode that the hot runner rotates to the cold runner, and the design of a material flow path is simplified.

In some possible designs, a first cavity and a second cavity are respectively arranged on two sides of the first cavity plate, and the first cavity and the second cavity are arranged in a back-to-back mode in the vertical direction.

In the design, a first cavity and a second cavity are respectively arranged on two sides of the first cavity plate, the first cavity and the fixed die enclose the first cavity, the second cavity and the first movable die enclose the second cavity, the first cavity plate and the second cavity share the first cavity plate, products in the first cavity and products in the second cavity are respectively located on two sides of the cavity, the utilization rate of the first cavity plate is improved, and the overall thickness of the die is reduced. The first cavity and the second cavity are arranged in a reverse manner in the vertical direction, so that the length of the first cold runner is further shortened, and the flow imbalance and the pressure increase caused by the first cold runner are reduced.

Furthermore, the sizes of the cold runner and the sprue are optimized through simulation, so that the problems caused by the cold runner are reduced to the maximum extent.

Through setting up first die cavity and second die cavity back to back for first die cavity and second die cavity are closer, and then make the product in the first die cavity and the product in the second die cavity closer, thereby shortened the length of first cold runner, reduced the flow unbalance and the problem of pressure increase that first cold runner brought, also reduced the loss of material.

In some possible designs, the first mold cavity has the same shape as the second mold cavity, and the first mold cavity and the second mold cavity are symmetrically arranged in the vertical direction.

In this design, the shape of first die cavity is the same with the shape of second die cavity, like this, can produce same product through first die cavity and second die cavity for a plurality of same products of injection mold one shot forming have improved the production efficiency of product greatly. Further, first die cavity is the symmetry setting with the second die cavity along vertical direction, and on the one hand, this kind of setting mode has reduced the length of first cold runner, and on the other hand, the design of the first die cavity board of being convenient for of this kind of setting mode has reduced the manufacturing degree of difficulty of first die cavity board.

In some possible designs, the shape of the first mold cavity is different from the shape of the second mold cavity.

In this design, the shape of first die cavity is inequality with the shape of second die cavity, can produce the product of different shapes through first die cavity and second die cavity for injection mold can the one shot forming produce different products, has improved the production efficiency of product.

In some possible designs, the first mold cavity includes a plurality of first cavities distributed in a vertical direction; the second mold cavity comprises a plurality of second cavities, and the plurality of second cavities are distributed along the vertical direction.

In this design, first die cavity includes a plurality of first cavitys that distribute along vertical direction, and the second die cavity includes a plurality of second cavitys that distribute along vertical direction, and like this, a plurality of first cavitys can produce a plurality of products, and a plurality of second cavitys can produce a plurality of products to greatly increased injection mold one shot forming product's quantity, promoted injection mold's production efficiency.

In some possible designs, the plurality of first cavities are the same shape, or the plurality of first cavities are different shapes; the shape of the plurality of second cavities is the same, or the shape of the plurality of second cavities is different.

In this design, the plurality of first cavities are identical in shape, so that a plurality of identical products can be produced by the plurality of first cavities.

In another design, the shapes of the first cavities are different, so that different products can be produced through the first cavities, and the production diversity of the injection mold is improved. Further, a plurality of different products are used in cooperation with each other.

In one design, the plurality of second cavities are identical in shape, such that a plurality of identical products can be produced by the plurality of second cavities.

In another design, the shapes of the second cavities are different, so that different products can be produced through the second cavities, and the production diversification of the injection mold is improved. Further, a plurality of different products are used in cooperation with each other.

In some possible designs, the injection mold further comprises: and the fixed die is connected with the first cavity plate through the first connecting piece.

In the design, the injection mold further comprises a first connecting piece, the fixed mold and the first cavity plate are connected together through the first connecting piece, and the connecting strength and the reliability between the first cavity plate and the fixed mold are improved.

Furthermore, the number of the first connecting pieces is two, and the two first connecting pieces are respectively positioned on two sides of the fixed die.

Further, the fixed die and the first cavity plate are connected in an openable and closable manner through a first connecting piece.

In some possible designs, the injection mold further comprises: and the first movable die is connected with the first cavity plate through the second connecting piece.

In the design, the injection mold further comprises a second connecting piece, the first movable mold is connected with the first cavity plate through the second connecting piece, and the connection strength and the reliability between the first movable mold and the first cavity plate are improved.

Furthermore, the number of the second connecting pieces is two, and the two second connecting pieces are respectively positioned on two sides of the first movable die.

Further, the first movable die and the first cavity plate are connected in an openable and closable manner through a second connecting piece.

In some possible designs, the first connector and the second connector include a tab structure.

In the design, under the condition that the first connecting piece comprises the pull buckle structure, the fixed die and the first cavity plate can be connected in an opening and closing mode through the pull buckle structure, the opening and closing of the first cavity are achieved, the connecting structure between the fixed die and the first cavity plate is simplified, and the overall weight of the die is reduced.

Under the condition that the second connecting piece comprises a pull buckle structure, the first movable die and the first cavity plate can be connected in an opening and closing mode through the pull buckle structure, the opening and closing of the second cavity plate are achieved, the connecting structure between the first movable die and the first cavity plate is simplified, and the overall weight of the die is reduced.

In some possible designs, the first movable mold and the first cavity plate constitute a first mold set, and the injection mold further includes: the series module comprises a second movable die and a second cavity plate, a third cavity is formed between the second movable die and the second cavity plate, and the series module is positioned on one side of the first module, which is far away from the casting system; the second cavity plate is connected with the first movable die, and the second movable die is located on one side, away from the first movable die, of the second cavity plate.

In this design, first movable mould and first die cavity board constitute first module, and injection mold still includes the cluster module, with the cluster module setting keep away from one side of first die cavity board at first movable mould for second die cavity board is fixed with first movable mould, and then realizes the design of three die cavity. Also, three die cavities are simultaneously injected through a pouring system, and the injection molding efficiency is greatly improved.

In the concrete application, the string die set is arranged on one side, away from the first cavity plate, of the first movable die, the structure of the second movable die is the same as that of the first movable die, the second cavity plate is only provided with a cavity towards one side of the second movable die, and one side, close to the first movable die, of the second cavity plate is fixedly connected with the first movable die.

In some possible designs, the fixed die, the first cavity plate and the first movable die form a plurality of second die sets, the plurality of second die sets are arranged in series, and in two adjacent second die sets, the fixed die in one second die set is attached to the first movable die in the other second die set.

In this design, cover half, first die cavity board and first movable mould constitute the second module, and the quantity of second module is a plurality of, and a plurality of second modules are established ties and are set up, like this for injection mold can realize moulding plastics of a plurality of die cavitys simultaneously, promotes the efficiency of moulding plastics greatly. And in two adjacent second modules, the fixed die in one second module is attached to the first movable die in the other second module, so that the connection of the plurality of second modules is realized.

In specific application, through the design of a plurality of second modules, can realize the series connection of a plurality of die cavities through a cover half, when the quantity of second module was two, realized the series connection of four die cavities through a cover half.

In some possible designs, the injection mold further comprises: and the driving piece is connected with the first cavity plate and the first movable die and is used for driving the first cavity plate and the first movable die to move.

In this design, injection mold still includes the driving piece, and the driving piece is connected with first die cavity board and first movable mould, and the driving piece can drive first die cavity board and the motion of first movable mould, realizes the mould that opens and shuts of first die cavity and second die cavity, improves injection mold's degree of automation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view showing a structure of an injection mold in the related art;

FIG. 2 is another schematic structural view showing an injection mold in the related art;

FIG. 3 is a schematic view showing a partial structure of an injection mold in the related art;

fig. 4 is a schematic structural view showing another part of the injection mold in the related art.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

1 ' first set of molds, 2 ' second set of molds, 3 ' hot runner.

FIG. 5 shows one of the schematic structural views of an injection mold according to one embodiment of the present invention;

FIG. 6 shows a second schematic structural view of an injection mold according to an embodiment of the invention;

FIG. 7 shows a schematic view of a portion of an injection mold according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of another portion of an injection mold according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 5 to 8 is:

102, 104, 106, 108, 11 fixed dies, 12, 13, 14, 15, 16, 17, 18, 19, and second mold cavities.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An injection mold proposed according to some embodiments of the present invention is described below with reference to fig. 5 to 8.

As shown in fig. 5 and 6, according to a first embodiment of the present invention, there is provided an injection mold including: runner system 102, first cavity plate 108, stationary mold 11 and first movable mold 12.

Specifically, the fixed mold 11 is disposed between the runner system 102 and the first cavity plate 108, and the fixed mold 11 is connected with the runner system 102 and the first cavity plate 108; the first movable die 12 is connected with the first cavity plate 108, the fixed die 11 and the first movable die 12 are located on two sides of the first cavity plate 108, the fixed die 11 and the first cavity plate 108 enclose a first die cavity 13, the first movable die 12 and the first cavity plate 108 enclose a second die cavity 14, and the first die cavity 13 and the second die cavity 14 are communicated with the gating system 102. The shape of the first mold cavity 13 is the same as that of the second mold cavity 14, and the first mold cavity 13 and the second mold cavity 14 are arranged symmetrically in the vertical direction.

The injection mold provided by the invention comprises a fixed mold 11 and a first movable mold 12, wherein the fixed mold 11 is arranged between a pouring system 102 and a first cavity plate 108, the fixed mold 11 is connected with the pouring system 102, the first cavity plate 108 is connected with the fixed mold 11 in an openable manner, the first movable mold 12 is connected with the first cavity plate 108 in an openable manner, namely the pouring system 102, the fixed mold 11, the first cavity plate 108 and the first movable mold 12 are sequentially arranged, so that a first mold cavity 13 is enclosed between the fixed mold 11 and the first cavity plate 108, and a second mold cavity 14 is enclosed between the first cavity plate 108 and the first movable mold 12, so that injection molding of materials is realized, namely, injection molding of materials is realized through the first mold cavity 13 and the second mold cavity 14 on two sides of the first cavity plate 108 respectively, a plurality of products are molded at one time, and the production efficiency of the mold is improved.

The gating system 102 is communicated with the first mold cavity 13 and the second mold cavity 14, and materials can be poured into the first mold cavity 13 and the second mold cavity 14 through the gating system 102 so as to realize the molding of the materials.

Meanwhile, the shape of the first mold cavity 13 is the same as that of the second mold cavity 14, so that the same product can be produced through the first mold cavity 13 and the second mold cavity 14, a plurality of same products can be formed by the injection mold at one time, and the production efficiency of the product is greatly improved. Further, the first mold cavity 13 and the second mold cavity 14 are symmetrically arranged in the vertical direction, and the design of the first mold cavity plate 108 is facilitated by the arrangement mode, so that the manufacturing difficulty of the first mold cavity plate 108 is reduced.

It can be understood that the fixed mold 11 and the first movable mold 12 share a set of cavity plate and the gating system 102, so that the thickness of the mold is greatly reduced on the basis of realizing one-step molding of a plurality of products and improving the manufacturing efficiency of the products, and further, the production cost and the volume of the injection mold are reduced.

In addition, in the embodiment provided by the application, the first cavity plate 108 forms the first cavity 13 and the second cavity 14 with the fixed die 11 and the first movable die 12 respectively, so that the utilization rate of the first cavity plate 108 is improved, and the thickness of the whole die is further reduced. Meanwhile, the first cavity plate 108 is thin, and a supporting structure is not required to be arranged at the bottom of the first cavity plate 108, so that the overall occupied space of the mold is reduced, and the production cost of the injection mold is reduced.

In the correlation technique, rotate two sets of conventional moulds 180 back combined use, the sharing part is few, and in the embodiment that this application provided, cover half 11 and first movable mould 12 share one set of gating system, form these two die cavitys of first die cavity 13 and second die cavity 14, and then realize a plurality of products of one shot forming, promote product efficiency, like this, the whole thickness of mould does not exceed 1.5 times of conventional mould, has reduced the quantity of mould, the holistic thickness of mould has significantly reduced.

It should be noted that the gating system 102 is connected to an injection molding machine, and is used for injecting the material in the state into the first cavity 13 and the second cavity 14, so as to realize the molding of the material in the first cavity 13 and the second cavity 14.

As shown in fig. 7 and 8, in some possible designs, the injection mold further comprises: and the first cold runner 15 is arranged on the first cavity plate 108 and communicated with the gating system 102, and the first cavity 13 and the second cavity 14 are communicated through the first cold runner 15.

In this design, the injection mold further includes a first cold runner 15, and the first mold cavity 13 and the second mold cavity 14 are communicated with each other through the first cold runner 15, so that the first mold cavity 13 and the second mold cavity 14 are connected in series through the first cold runner 15, wherein the first cold runner 15 is disposed on the first mold cavity plate 108 and is communicated with the gating system 102, so that, during pouring, the material flows to the first mold cavity 13 and the second mold cavity 14 through the gating system 102 via the first cold runner 15, respectively, so that the material is molded in the first mold cavity 13 and the second mold cavity 14.

It can be understood that the first cold runner 15 is arranged on the first cavity plate 108, and the thickness of the first cavity plate 108 is smaller, so that the length of the first cold runner 15 is smaller, and the material loss is reduced. That is, the gating system 102 is respectively communicated with the first mold cavity 13 and the second mold cavity 14 through a small section of cold runner, so that the design of the gating flow path is simplified under the condition that the number of the mold cavities is increased, the overall thickness of the mold is reduced, the overall occupied space of the mold is reduced, and the production cost of the injection mold is reduced.

As shown in fig. 7 and 8, in some possible designs, the gating system 102 includes: the injection nozzle 104 is connected with the fixed die 11; and the hot runner 106 is connected with the fixed die 11, one end of the hot runner 106 is communicated with the injection nozzle 104, and the other end of the hot runner 106 is communicated with the first cold runner 15.

In this design, the gating system 102 includes a nozzle 104 and a hot runner 106, the nozzle 104 and the hot runner 106 are connected to the stationary mold 11, the nozzle 104 is connected to the hot runner 106, and the hot runner 106 is connected to the first cold runner 15, so that during the pouring, the material enters the hot runner 106 through the nozzle 104, then flows to the first cold runner 15 through the hot runner 106, and further flows to the first mold cavity 13 and the second mold cavity 14, and the material is molded in the first mold cavity 13 and the second mold cavity 14.

It can be understood that in the embodiment provided by the present application, the hot runner 106 is respectively communicated with the first mold cavity 13 and the second mold cavity 14, and the first mold cavity 13 and the second mold cavity 14 are connected in series through the very short section of the first cold runner 15, and share one injection nozzle 104, so as to ensure that the number of the hot runner 106 is unchanged when the number of the mold cavities is doubled, simplify the design of the runner, further reduce the production cost, and reduce the thickness of the mold.

It can be understood that a heating device is disposed inside hot runner 106 or outside hot runner 106 for heating hot runner 106, so that the material is kept in a molten state in hot runner 106, thereby avoiding material loss and reducing processing cost. Meanwhile, the first cold runner 15 is short in length, so that material loss can be reduced, and processing cost is reduced.

As shown in fig. 5 and 6, according to a second embodiment of the present invention, there is provided an injection mold including: the runner system 102, the first cavity plate 108, the fixed mold 11 and the first movable mold 12.

Specifically, the fixed mold 11 is disposed between the runner system 102 and the first cavity plate 108, and the fixed mold 11 is connected with the runner system 102 and the first cavity plate 108; the first movable die 12 is connected with the first cavity plate 108, the fixed die 11 and the first movable die 12 are located on two sides of the first cavity plate 108, the fixed die 11 and the first cavity plate 108 enclose a first die cavity 13, the first movable die 12 and the first cavity plate 108 enclose a second die cavity 14, and the first die cavity 13 and the second die cavity 14 are communicated with the gating system 102. Wherein the shape of the first mold cavity 13 is different from the shape of the second mold cavity 14.

The injection mold provided by the invention comprises a fixed mold 11 and a first movable mold 12, wherein the fixed mold 11 is arranged between a pouring system 102 and a first cavity plate 108, the fixed mold 11 is connected with the pouring system 102, the first cavity plate 108 is connected with the fixed mold 11 in an openable and closable manner, and the first movable mold 12 is connected with the first cavity plate 108 in an openable and closable manner, namely the pouring system 102, the fixed mold 11, the first cavity plate 108 and the first movable mold 12 are sequentially arranged, so that a first mold cavity 13 is enclosed between the fixed mold 11 and the first cavity plate 108, and a second mold cavity 14 is enclosed between the first cavity plate 108 and the first movable mold 12, so that injection molding of materials is realized, namely, injection molding of materials is respectively realized through the first mold cavity 13 and the second mold cavity 14 on two sides of the first cavity plate 108, a plurality of products are molded at one time, and the production efficiency of the mold is improved.

Meanwhile, the shape of the first mold cavity 13 is different from that of the second mold cavity 14, and products in different shapes can be produced through the first mold cavity 13 and the second mold cavity 14, so that the injection mold can be used for producing different products through one-step forming, and the production efficiency of the products is improved.

In a specific application, the product in the first mold cavity 13 and the product in the second mold cavity 14 are used together as a set of product, for example, one of the product in the first mold cavity 13 and the product in the second mold cavity 14 is a cup, the other is a cup cover, for example, one of the product in the first mold cavity 13 and the product in the second mold cavity 14 is a nut, the other is a bolt, for example, one of the product in the first mold cavity 13 and the product in the second mold cavity 14 is a storage basket, and the other is a cover of the storage basket.

It can be understood that, the first mold cavity 13 and the second mold cavity 14 are both communicated with the gating system 102, that is, the fixed mold 11 and the first movable mold 12 share one set of fixed mold and the gating system 102, so that the thickness of the mold is greatly reduced on the basis of realizing one-time molding of a plurality of products and improving the manufacturing efficiency of the products, and further, the production cost and the volume of the injection mold are reduced.

It should be noted that the gating system 102 is connected to the injection molding machine, and is used for injecting the material in the state into the first cavity 13 and the second cavity 14, so as to realize the molding of the material in the first cavity 13 and the second cavity 14.

It can be understood that in the embodiment provided by the present application, a single hot runner 106 is adopted to respectively communicate with the first mold cavity 13 and the second mold cavity 14, and the first mold cavity 13 and the second mold cavity 14 are connected in series through a very short section of the first cold runner 15, and share one injection nozzle 104, so that the number of the hot runners 106 is unchanged when the number of the mold cavities is doubled, the design of the runners is simplified, the production cost is further reduced, and the thickness of the mold is reduced.

It can be understood that a heating device is disposed inside the hot runner 106 or outside the hot runner 106 for heating the hot runner 106, so that the material is kept in a molten state in the hot runner 106, thereby avoiding material loss and reducing processing cost. Meanwhile, the first cold runner 15 is short in length, so that material loss can be reduced, and processing cost is reduced.

As shown in fig. 8, according to the third embodiment of the present invention, on the basis of any of the above embodiments, further: the injection mold further includes: a second cold runner 16 and a third cold runner 17.

Specifically, second cold runner 16 communicates with first cold runner 15 and first cavity 13; and a third cold runner 17 communicating with the first cold runner 15 and the second cavity 14.

In the design, the injection mold further comprises a second cold runner 16 and a third cold runner 17, the second cold runner 16 is communicated with the first cold runner 15 and the first mold cavity 13, so that materials in the hot runner 106 flow to the second cold runner 16 through the first cold runner 15 and further flow to the first mold cavity 13, and molding in the first mold cavity 13 is realized; the third cold runner 17 is communicated with the first cold runner 15 and the second die cavity 14, so that the material in the hot runner 106 can flow to the third cold runner 17 through the first cold runner 15 and further flow to the second die cavity 14, and the molding in the second die cavity 14 is realized. Through the arrangement of the first mold cavity 13 and the second mold cavity 14, the injection mold can form a plurality of products at one time, the production cost is reduced, and the manufacturing efficiency is improved.

In the embodiment provided by the application, the first mold cavity 13 and the second mold cavity 14 share one injection nozzle 104 and one hot runner 106, the first cold runner 15 and the second cold runner 16 are used for injecting materials into the first mold cavity 13, the first cold runner 15 and the third cold runner 17 are used for injecting materials into the second mold cavity 14, namely, the hot runner 106 is used for turning to the cold runner, so that the injection of materials is realized, and the design of a material flow path is simplified.

According to a fourth embodiment of the present invention, on the basis of any one of the above embodiments, further: the two sides of the first cavity plate 108 are respectively provided with a first cavity and a second cavity, and the first cavity and the second cavity are arranged back to back along the vertical direction.

In the design, a first cavity and a second cavity are respectively arranged on two sides of the first cavity plate 108, the first cavity and the fixed die 11 enclose the first cavity 13, the second cavity and the first movable die 12 enclose the second cavity 14, the first cavity 13 and the second cavity 14 share the first cavity plate 108, products in the first cavity 13 and the second cavity 14 are respectively located on two sides of the cavity, the utilization rate of the first cavity plate 108 is improved, and the overall thickness of the die is reduced. The first cavity and the second cavity are arranged in a reverse manner in the vertical direction, so that the length of the first cold runner 15 is further shortened, and the flow imbalance and the pressure increase caused by the first cold runner 15 are reduced.

Through setting up first die cavity and second die cavity for carrying on the back mutually for first die cavity 13 and second die cavity 14 are closer to, and then make the product in first die cavity 13 and the product in the second die cavity 14 closer to, thereby shortened the length of first cold runner 15, reduced the problem of the unbalanced flow that first cold runner 15 brought and pressure increase, also reduced the loss of material.

According to a fifth embodiment of the present invention, on the basis of any of the above embodiments, further: the first mold cavity 13 comprises a plurality of first cavities distributed in a vertical direction; the second mold cavity 14 comprises a plurality of second cavities, which are distributed in a vertical direction.

In this design, first die cavity 13 includes a plurality of first cavitys that distribute along vertical direction, and second die cavity 14 includes a plurality of second cavitys that distribute along vertical direction, and like this, a plurality of first cavitys can produce a plurality of products, and a plurality of second cavitys can produce a plurality of products to greatly increased injection mold one shot forming product's quantity, promoted injection mold's production efficiency.

As shown in fig. 6, according to a sixth embodiment of the present invention, on the basis of any one of the above embodiments, further: the injection mold further includes: the first connecting member 18, the stationary mold 11 is connected to the first cavity plate 108 through the first connecting member 18.

In this design, the injection mold further includes a first connecting member 18, and the fixed mold 11 and the first cavity plate 108 are connected together by the first connecting member 18, so that the connection strength and reliability between the first cavity plate 108 and the fixed mold 11 are improved.

Further, the number of the first connecting members 18 is two, and the two first connecting members 18 are respectively located at both sides of the fixed mold 11.

Further, the stationary mold 11 and the first cavity plate 108 are openably and closably connected by a first connecting member 18.

As shown in fig. 6, according to a seventh embodiment of the present invention, on the basis of any of the above embodiments, further: the injection mold further includes: and a second connecting piece 19, wherein the first movable mold 12 is connected with the first cavity plate 108 through the second connecting piece 19.

In this design, the injection mold further includes a second connecting member 19, and the first movable mold 12 is connected to the first cavity plate 108 through the second connecting member 19, so that the connection strength and reliability between the first movable mold 12 and the first cavity plate 108 are improved.

Further, the number of the second connecting members 19 is two, and the two second connecting members 19 are respectively located on both sides of the first movable mold 12.

Further, the first movable mold 12 and the first cavity plate 108 are openably and closably connected by a second connecting member 19.

According to the eighth embodiment of the present invention, on the basis of the sixth and seventh embodiments described above, further: the first and

second connectors

18 and 19 comprise a tab structure.

In this design, in the case where the first connecting member 18 includes a tab structure, the fixed mold 11 and the first cavity plate 108 are openably and closably connected by the tab structure, so that the opening and closing of the first cavity 13 is realized, the connecting structure between the fixed mold 11 and the first cavity plate 108 is simplified, and the weight of the entire mold is reduced.

Under the condition that the second connecting piece 19 comprises a pull buckle structure, the first movable die 12 and the first cavity plate 108 can be connected in an opening and closing manner through the pull buckle structure, so that the opening and closing of the second cavity 14 are realized, the connecting structure between the first movable die 12 and the first cavity plate 108 is simplified, and the overall weight of the die is reduced.

Specifically, the tab structure includes a limiting member and a tab plate, the tab plate is provided with a sliding groove, the limiting member is disposed in the sliding groove and can slide in the sliding groove along the length direction of the sliding groove, and the opening and closing of the first mold cavity 13 and the second mold cavity 14 is realized.

Further, as shown in fig. 6, when the first connecting member 18 is a pulling buckle structure, the fixed mold 11 is provided with a limiting member, one end of the pulling buckle plate is fixed on the first cavity plate 108, and the other end of the pulling buckle plate extends toward the fixed mold 11, and the limiting member on the fixed mold 11 extends into a sliding groove on the pulling buckle plate and can slide in the sliding groove, so as to open and close the first mold cavity 13.

Further, as shown in fig. 6, when the second connecting member 19 is a tab structure, a limiting member is disposed on the first cavity plate 108, one end of the tab plate is fixed on the first movable mold 12, and the other end extends toward the first cavity plate 108, and the limiting member on the first cavity plate 108 extends into a sliding slot on the tab plate and can slide in the sliding slot, so as to open and close the second cavity 14.

According to a ninth embodiment of the present invention, on the basis of any one of the first to eighth embodiments, further: first movable mould 12 constitutes first module with first die cavity board 108, and injection mold still includes: the series module comprises a second movable die and a second cavity plate, a third cavity is formed between the second movable die and the second cavity plate, and the series module is positioned on one side of the first module, which is far away from the casting system; the second cavity plate is connected with the first movable die 12, and the second movable die is located on one side, far away from the first movable die 12, of the second cavity plate.

In specific application, the series die set is arranged on one side, away from the first cavity plate, of the first movable die, the structure of the second movable die is the same as that of the first movable die, a cavity is arranged on one side, facing the second movable die, of the second cavity plate, and one side, close to the first movable die, of the second cavity plate is fixedly connected with the first movable die.

According to a tenth embodiment of the present invention, on the basis of any one of the first to eighth embodiments, further: the fixed die 11, the first cavity plate 108 and the first movable die 12 form a plurality of second modules, the plurality of second modules are arranged in series, and in two adjacent second modules, the fixed die 11 in one second module is attached to the first movable die 12 in the other second module.

In this design, cover half 11, first die cavity board 108 and first movable mould 12 constitute the second module, and the quantity of second module is a plurality of, and a plurality of second modules set up in series for injection mold can realize moulding plastics of a plurality of die cavities simultaneously, promotes injection efficiency greatly. The fixed die 11 in one second module of the two adjacent second modules is attached to the first movable die 12 in the other second module, so that the connection of the second modules is realized.

In concrete application, through the design of a plurality of second modules, can realize the series connection of a plurality of die cavitys, when the quantity of second module was two, realized the series connection of four die cavitys.

According to an eleventh embodiment of the present invention, on the basis of any one of the above embodiments, further: the injection mold further includes: and the driving part is connected with the first cavity plate 108 and the first movable die 12 and is used for driving the first cavity plate 108 and the first movable die 12 to move.

In the design, the injection mold further comprises a driving part, the driving part is connected with the first cavity plate 108 and the first movable mold 12, the driving part can drive the first cavity plate 108 and the first movable mold 12 to move, the mold opening and closing of the first mold cavity 13 and the second mold cavity 14 is achieved, and the automation degree of the injection mold is improved.

Specifically, the drive member includes a cylinder.

In a specific application, the productivity is usually doubled under the same or similar machines by increasing the number of cavities, which is conventionally realized by a conventional stack mold. And the injection mold that this application provided inserts half a set of movable mould and constitutes one set of mould in the middle of one set of conventional mould, saves a cover half, reduces mould thickness by a wide margin, can use the same injection molding machine tonnage with conventional mould. A single hot runner 106 is used to connect two products, which are connected in series by a very short section of first cold runner 15, sharing a single nozzle 104, ensuring that the number of hot runners 106 remains unchanged when the number of mold cavities is doubled.

Further, in order to reduce the flow imbalance and the pressure increase caused by the first cold runner 15, the first cold runner 15 is greatly shortened in a back-to-back mode of two products, and then the sizes of the cold runner and a sprue are optimized through simulation so as to reduce the problems caused by the first cold runner 15 to the maximum extent.

Further, through optimizing the product mode of arranging, use novel back-to-back arrangement structure, draw close the interval of two products, reduce the thickness and the weight of first die cavity board 108 by a wide margin, through drawing the knot structure, use the first movable mould of injection molding machine die-opening and die-closing biography to open and close the mould, simplify the mould action, improve mould operating efficiency and stability.

The following effects are achieved by the embodiments proposed by the present application:

the thickness of the die is reduced: the two sets of dies are overlapped together, a part of dies are shared as much as possible to reduce the thickness of the dies, the conventional overlapped dies are basically overlapped together and combined after the two sets of complete dies rotate, the number of shared parts is very small, the scheme is that the hot runner 106 system and the fixed die are shared, namely the moving die (ejection) part of dies are inserted into the middle of one set of conventional dies, so that the thickness of the dies is not more than 1.5 times of that of the conventional dies, the thickness of the dies is greatly reduced, the dies can be used on a machine table of the conventional dies, and the cost of the machine table and the cost of the dies are reduced.

The flow channel system is simplified: the hot runner 106 system is combined with the cold runner to connect two products in series to form two products at one time, so that the special hot runner 106 system of the laminated mold can be simplified.

A plate two-cavity shared structure: through first die cavity and the design of second die cavity back of the body back, make two product die cavitys share a first die cavity board 108, two chamber products are in the both sides of first die cavity board 108, and the thickness of first die cavity board 108 is attenuate to the limit, and double cavity mould just can stably open and shut the mould through simply drawing the knot, improves mould production efficiency and stability.

Further, two differently shaped products can be manufactured in the first mold cavity 13 and the second mold cavity 14.

Further, the design of 1 string of 3 or 1 string of 4 of the die is realized by simplifying the ejection mode of the product, and the application range of the string die technology is further expanded.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, connections that may be fixed or removable or integral; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold, comprising:

a casting system and a first cavity plate;

the fixed die is arranged between the gating system and the first cavity plate and is connected with the gating system and the first cavity plate;

the fixed die and the first cavity plate enclose a first cavity, the first movable die and the first cavity plate enclose a second cavity, and the first cavity and the second cavity are communicated with the gating system.

2. The injection mold of claim 1, further comprising:

and the first cold runner is arranged on the first cavity plate and communicated with the pouring system, and the first cavity and the second cavity are communicated through the first cold runner.

3. An injection mold according to claim 2, wherein the runner system comprises:

the injection molding nozzle is connected with the fixed mold;

the hot runner is connected with the fixed die, one end of the hot runner is communicated with the injection molding nozzle, and the other end of the hot runner is communicated with the first cold runner.

4. An injection mold according to claim 3, further comprising:

a second cold runner in communication with the first cold runner and the first die cavity;

a third cold runner in communication with the first cold runner and the second die cavity.

5. An injection mould according to any one of claims 1 to 4,

and a first cavity and a second cavity are respectively arranged on two sides of the first cavity plate, and the first cavity and the second cavity are arranged back to back in the vertical direction.

6. An injection mold according to any of claims 1-4, further comprising:

and the fixed die is connected with the first cavity plate through the first connecting piece.

7. An injection mold according to claim 6,

and the first movable die is connected with the first cavity plate through the second connecting piece.

8. An injection mold according to claim 7,

the first connecting piece and the second connecting piece comprise pull buckle structures.

9. An injection mould according to any one of claims 1 to 4,

the first movable mold and the first cavity plate form a first module, and the injection mold further comprises:

the die set comprises a second movable die and a second cavity plate, a third die cavity is formed between the second movable die and the second cavity plate, and the die set is positioned on one side of the first die set, which is far away from the casting system;

the second cavity plate is connected with the first movable die, and the second movable die is located on one side, far away from the first movable die, of the second cavity plate.

10. An injection mould according to any one of claims 1 to 4,

the fixed die, the first cavity plate and the first movable die form a second module, the number of the second modules is multiple, the second modules are arranged in series, and in two adjacent second modules, one of the second modules is attached to the other of the second modules through the first movable die.

11. An injection mold as claimed in any of claims 1 to 4, further comprising:

and the driving part is connected with the first cavity plate and the first movable die and is used for driving the first cavity plate and the first movable die to move.