CN114474532A

CN114474532A - Mould with multidirectional injection type gating system

Info

Publication number: CN114474532A
Application number: CN202111556046.8A
Authority: CN
Inventors: 罗建荣
Original assignee: Taicang Zhongxiang Precision Hardware Co ltd
Current assignee: Taicang Zhongxiang Precision Hardware Co ltd
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2022-05-13

Abstract

A mold having a multi-directional injection gating system, comprising: including roof, last external mold, last centre form, external mold, centre form, supporting seat, bottom plate, thimble, pouring system, pouring cavity down, wherein the pouring system wears to establish roof, last external mold and last centre form and communicates in the pouring cavity, the pouring system includes watering bucket, hot runner, water conservancy diversion platform, the roof is worn to locate by the watering bucket, the hot runner communicates in watering bucket and pouring cavity, the hot runner is equipped with main road, subchannel, inside the hot runner was located to the water conservancy diversion platform, water conservancy diversion platform middle part and lateral part are equipped with the water conservancy diversion through-hole. Through the cooperation of main road and branch way, the time that can effectual control raw materials flow into the pouring chamber for when the raw materials injection pouring chamber in the main road flows to the branch way export, can mix with the raw materials that pours into in the branch way, and together fill the pouring chamber, the injection of many branch ways also enables the product rapid prototyping, and the impact of pouring into the raw materials can be alleviated in the setting of water conservancy diversion platform to the equal velocity of flow with the main road and branch way in the raw materials.

Description

Mould with multidirectional injection type gating system

Technical Field

The invention belongs to the technical field of plastic molds, and particularly relates to a mold with a multidirectional injection type pouring system.

Background

The plastic mould is a common one in the moulds, and is a short for a combined plastic mould for compression moulding, extrusion molding, injection, blow molding and low-foaming molding, and when manufacturing a metal workpiece, molten metal in a molten state needs to be poured into the mould, and the molten metal is obtained after cooling. In the existing plastic mold pouring process, especially when products with large areas, thin thicknesses and the like are poured, the temperature of raw materials cannot be kept in the blanking process, air in a pouring cavity cannot be discharged, and the flow rate of the raw materials cannot be controlled to cause the problems of different thicknesses, holes, welding marks and the like of the products.

Therefore, the above problems need to be solved.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the die with the multidirectional injection type pouring system, which can control the flow rate of raw materials, carry out multidirectional injection, constantly keep the temperature of the raw materials, automatically discharge redundant air and reduce the defective rate, and has the advantages of simple structure, reasonable design and easy production.

The technical scheme is as follows: a mould with a multidirectional injection type pouring system comprises a top plate, an upper outer mould, an upper inner mould, a lower outer mould, a lower inner mould, a supporting seat, a bottom plate, a thimble, a pouring system and a pouring cavity, wherein the supporting seat is arranged on the bottom plate, the lower external mold is arranged on the supporting seat, the lower internal mold is arranged in the lower external mold, the upper external mold is arranged at the top of the lower external mold, the upper internal mold is arranged inside the upper external mold, the upper internal mold and the lower internal mold are matched to form a pouring cavity, the top plate is arranged at the top of the upper outer die, the pouring system penetrates through the top plate, the upper outer die and the upper inner die and is communicated with the pouring cavity, the pouring system comprises a pouring hopper, a hot runner and a flow guide table, wherein the casting ladle is arranged on the top plate in a penetrating way, the hot runner is communicated with the casting ladle and the casting cavity, the hot runner is provided with a main channel and a branch channel, the flow guide platform is arranged in the hot runner, and flow guide through holes are formed in the middle and the side of the flow guide platform. Through the cooperation of main road and branch way, can the time of effectual control raw materials inflow pouring chamber for when the raw materials injection pouring chamber in the main road flows to branch way opening, just in time with the raw materials mixture of pouring into in the branch way, and together fill the pouring chamber, prevent that the condition that thickness differs from appearing in the mould, the impact of pouring into the raw materials can be alleviated in setting up of water conservancy diversion platform, all with the velocity of flow of raw materials in main road and the branch way.

Furthermore, the hot runner is provided with a heating part which is arranged in close contact with the hot runner. The heating part can prevent the problems of blockage, product damage and the like caused by temperature reduction when the raw materials flow down.

Further, the heating portion is provided at the side portion of the main duct and the bottom portion of the branch duct.

Furthermore, the flow guide table is a conical flow guide table, the cross section of the flow guide through hole in the middle of the flow guide table is circular, and the cross section of the flow guide through hole in the side part of the flow guide table is semicircular.

Further, foretell outer mould down is equipped with exhaust apparatus, exhaust apparatus UNICOM is in centre form down, exhaust apparatus includes gas vent, end cap, telescopic link, air flue, activity chamber, wherein, the activity chamber is located to the telescopic link, the telescopic link is located to the end cap, end cap and gas vent cooperation, the air flue UNICOM in activity chamber.

Furthermore, the top of the exhaust port is a wide opening, and the section radius of the exhaust port is smaller than that of the plug.

Further, the top of the movable cavity is provided with an air sealing ring; the plug is a boss cylindrical plug, and the section radius of the plug is smaller than that of the movable cavity. The air sealing ring is matched with the boss cylindrical plug.

Furthermore, one end of the air passage close to the movable cavity is a conical opening.

The technical scheme shows that the invention has the following beneficial effects:

1. according to the die with the multidirectional injection type pouring system, the main channel is matched with the branch channel, so that when the raw materials in the main channel are injected into the pouring cavity and flow to the opening of the branch channel, the raw materials are just in contact with the raw materials injected into the branch channel and are mixed together to fill the pouring cavity, the multidirectional injection effectively shortens the pouring time of a product, and the condition that the thickness of the product is different is prevented.

2. According to the invention, the flow of the raw materials in the main channel and the branch channel is effectively controlled by arranging the flow guide platform, so that the product pouring process is easier to control.

3. According to the invention, the exhaust device is arranged, so that redundant gas in the pouring cavity can be rapidly and effectively discharged, and the gas in the pouring cavity can be further pumped out through the air pump, so that the pouring time of a product is greatly shortened.

4. The arrangement of the plug and the air sealing ring can well ensure air tightness, prevent air from entering a pouring cavity and further improve the quality of casting and molding of products.

Drawings

FIG. 1 is a schematic structural view of a mold with a multi-directional injection gating system according to the present invention;

FIG. 2 is a partial schematic view of a gating system of a mold with a multi-directional injection gating system according to the present invention;

FIG. 3 is a top plan view of a portion of a runner system of a mold with a multi-directional injection runner system of the present invention;

FIG. 4 is a schematic structural view of a diversion table of a mold with a multi-directional injection gating system according to the present invention;

FIG. 5 is a schematic view of an air extractor of a mold with a multi-directional injection gating system according to the present invention;

in the figure: the device comprises a top plate 1, an upper outer die 2, an upper inner die 3, a lower outer die 4, a lower inner die 5, a supporting seat 6, a bottom plate 7, a thimble 8, a pouring system 9, a pouring hopper 91, a hot runner 92, a main passage 921, a branch passage 922, a flow guide table 93, a flow guide through hole 931, a heating part 94, a pouring cavity 10, an air extracting device 11, an exhaust port 111, a plug 112, an expansion rod 113, an air passage 114, a movable cavity 115 and an air sealing ring 116.

Detailed Description

The invention is further elucidated with reference to the drawings and the embodiments.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

A mould with a multidirectional injection type pouring system comprises a top plate 1, an upper outer mould 2, an upper inner mould 3, a lower outer mould 4, a lower inner mould 5, a supporting seat 6, a bottom plate 7, a thimble 8, a pouring system 9 and a pouring cavity 10, wherein the supporting seat 6 is arranged on the bottom plate 7, the lower outer mould 4 is arranged on the supporting seat 6, the lower inner mould 5 is arranged inside the lower outer mould 4, the upper outer mould 2 is arranged at the top of the lower outer mould 4, the upper inner mould 3 is arranged inside the upper outer mould 2, the upper inner mould 3 and the lower inner mould 5 are matched to form the pouring cavity 10, the top plate 1 is arranged at the top of the upper outer mould 2, the pouring system 9 penetrates through the top plate 1, the upper outer mould 2 and the upper inner mould 3 and is communicated with the pouring cavity 10, the pouring system 9 comprises a pouring hopper 91, a hot runner 92 and a flow guide table 93, wherein the pouring hopper 91 penetrates through the top plate 1, and the hot runner 92 is communicated with the pouring hopper 91 and the pouring cavity 10, the hot runner 92 is provided with a main passage 921 and a branch passage 922, the flow guide platform 93 is arranged inside the hot runner 92, and the middle part and the lateral part of the flow guide platform 93 are provided with flow guide through holes 931. Through the cooperation of main road 921 and subchannel 922, the time that can effectual control raw materials flow into pouring cavity 10 for when the raw materials injection pouring cavity 10 in the main road 921 flowed to the subchannel 922 opening, just in time with the raw materials mixture of pouring into in the subchannel 922, and pour into pouring cavity 10 full together, prevent that the mould from the condition that the thickness is different, the impact of pouring into the raw materials of pouring ladle 91 can be alleviated in the setting of water conservancy diversion platform 93, all with the velocity of flow of raw materials in main road 921 and the subchannel 922.

Example 2

As shown in fig. 1-5, the mold with a multi-directional injection type pouring system includes a top plate 1, an upper outer mold 2, an upper inner mold 3, a lower outer mold 4, a lower inner mold 5, a support seat 6, a bottom plate 7, an ejector pin 8, a pouring system 9, and a pouring cavity 10, wherein the support seat 6 is disposed on the bottom plate 7, the lower outer mold 4 is disposed on the support seat 6, the lower inner mold 5 is disposed inside the lower outer mold 4, the upper outer mold 2 is disposed on the top of the lower outer mold 4, the upper inner mold 3 is disposed inside the upper outer mold 2, the upper inner mold 3 and the lower inner mold 5 cooperate to form the pouring cavity 10, the top plate 1 is disposed on the top of the upper outer mold 2, the pouring system 9 penetrates through the top plate 1, the upper outer mold 2, and the upper inner mold 3 and communicates with the pouring cavity 10, the pouring system 9 includes a pouring bucket 91, a hot runner 92, and a flow guiding platform 93, the pouring bucket 91 penetrates through the top plate 1, the hot runner 92 communicates with the pouring bucket 91 and the pouring cavity 10, the hot runner 92 is provided with a main passage 921 and four branch passages 922, the flow guide platform 93 is arranged inside the hot runner 92, and the middle part and the lateral part of the flow guide platform 93 are provided with flow guide through holes 931. The hot runner 92 is provided with heating portions 94, the heating portions 94 are disposed in close contact with the hot runner 92, and the heating portions 94 are disposed on the side of the main passage 921 and the bottoms of the four branch passages 922. The flow guiding platform 93 shown in fig. 4 is a conical flow guiding platform, the cross section of the flow guiding through hole 931 in the middle of the flow guiding platform 93 is circular, and the cross section of the flow guiding through hole 931 on the side part is semicircular.

Further, as shown in fig. 5, the lower outer mold 4 is provided with an exhaust device 11, the exhaust device 11 is communicated with the lower inner mold 5, the exhaust device 11 includes an exhaust port 111, a plug 112, an expansion link 113, an air passage 114, and a movable cavity 115, wherein the expansion link 113 is arranged in the movable cavity 115, the plug 112 is arranged in the expansion link 113, the plug 112 is matched with the exhaust port 111, the top of the exhaust port 111 is a wide mouth, the section radius of the exhaust port 111 is smaller than that of the plug 112, the air passage 114 is communicated with the movable cavity 115, and one end of the air passage 114, which is close to the movable cavity 115, is a tapered mouth. In this embodiment, the air passage 114 is provided with a one-way air valve, and an air pump is connected to the outlet of the air passage 114. The top of the movable cavity 115 is provided with an air sealing ring 116. In addition, the plug 112 is a boss cylindrical plug, and the radius of the section of the plug 112 is smaller than that of the section of the movable cavity 115.

In operation, the raw material is poured into the ladle 91, enters the hot runner 92, is buffered by the guide table 93, and then flows through the main passage 921 and the branch passage 922 under the heating of the heating portion 94. At this time, the telescopic rod 113 is contracted, the plug 112 moves downwards, and because the section radius of the plug 112 is smaller than that of the movable cavity 115, a passage is formed between the exhaust port 111 and the air passage 114, air in the pouring cavity 10 is extracted under the action of the air extractor and the one-way air valve, and meanwhile, the air pressure is reduced to accelerate the flow rate of the raw materials. Because the branch passage 922 is arranged in an inclined manner, the raw material flowing out of the main passage 921 flows through part of the cavity of the pouring cavity 10 and then is mixed with the raw material at the outlet of the branch passage 922, and the pouring cavity 10 is gradually filled with the raw material, and at the moment, the telescopic rod 113 extends to cause the plug 112 to block the exhaust port 111.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims

1. A mold having a multi-directional injection gating system, comprising: including roof (1), go up external mold (2), go up centre form (3), external mold (4), centre form (5), supporting seat (6), bottom plate (7), thimble (8), pouring system (9), pouring chamber (10) down, wherein bottom plate (7) are located in supporting seat (6), supporting seat (6) are located in external mold (4) down, external mold (4) are inside down located in centre form (5) down, external mold (4) top is located down in last external mold (2), it locates inside in last external mold (2) to go up centre form (3) and form pouring chamber (10) with centre form (5) down, last external mold (2) top is located in roof (1), pouring system (9) are worn to establish roof (1), go up external mold (2) and last centre form (3) and are communicated in pouring chamber (10), pouring system (9) are including pouring fill (91), Hot runner (92), water conservancy diversion platform (93), roof (1) are worn to locate by watering bucket (91), hot runner (92) communicate in watering bucket (91) and pouring cavity (10), hot runner (92) are equipped with main road (921), subchannel (922), inside hot runner (92) is located in water conservancy diversion platform (93), water conservancy diversion platform (93) middle part is equipped with water conservancy diversion through-hole (931) with the lateral part.

2. A mold having a multi-directional injection gating system as claimed in claim 1, wherein: the hot runner (92) is provided with a heating part (94), and the heating part (94) is closely attached to the hot runner (92).

3. A mold having a multi-directional injection gating system as claimed in claim 2, wherein: the heating part (94) is arranged on the side part of the main channel (921) and the bottom part of the branch channel (922).

4. A mold having a multi-directional injection gating system as claimed in claim 1, wherein: the water conservancy diversion platform (93) is the toper type water conservancy diversion platform, water conservancy diversion platform (93) middle part water conservancy diversion through-hole (931) cross-section is circular, and lateral part water conservancy diversion through-hole (931) cross-section is semi-circular.

5. A mold having a multi-directional injection gating system as claimed in claim 1, wherein: the lower outer die (4) is provided with an exhaust device (11), the exhaust device (11) is communicated with the lower inner die (5), the exhaust device (11) comprises an exhaust port (111), a plug (112), a telescopic rod (113), an air passage (114) and a movable cavity (115), the telescopic rod (113) is arranged in the plug (112), the plug (112) is matched with the exhaust port (111), and the air passage (114) is communicated with the movable cavity (115).

6. A mold having a multi-directional injection gating system as claimed in claim 5, wherein: the top of the exhaust port (111) is wide-mouth, and the section radius of the exhaust port (111) is smaller than that of the plug (112).

7. A mold having a multi-directional injection gating system as claimed in claim 5, wherein: the top of the movable cavity (115) is provided with an air sealing ring (116); the plug (112) is a boss cylindrical plug, and the section radius of the plug (112) is smaller than that of the movable cavity.

8. A mold with a multi-directional injection gating system, as claimed in claim 5, wherein: one end of the air passage (114) close to the movable cavity (115) is a conical opening.