CN216914697U

CN216914697U - High-efficient injection mold convenient to cooling

Info

Publication number: CN216914697U
Application number: CN202220526703.8U
Authority: CN
Inventors: 汤文耀; 蒋华明; 鲁良
Original assignee: Hangzhou Hengnai Plastic Co ltd
Current assignee: Hangzhou Hengnai Plastic Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-07-08
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a high-efficiency injection mold convenient to cool, and relates to the technical field of injection molds. According to the utility model, the cooling liquid is injected into the cooling cavity through the water inlet pipe, the driving impeller is driven to rotate when the cooling liquid enters, the driving impeller is further driven to rotate through the first transmission shaft, the synchronous belt and the second transmission shaft, the discharged cooling liquid also drives the driving impeller to rotate, the cooling impeller on the other side in the cooling cavity also rotates to generate air flow, the cooling liquid cools the injection molding product in the cooling cavity, and the two groups of cooling impellers generate air flow and further cool and radiate the cooling liquid simultaneously, so that the cooling liquid can better cool the injection molding product, and the problem of adhesion of the injection molding product to a mold due to incomplete cooling is avoided.

Description

High-efficient injection mold convenient to cooling

Technical Field

The utility model relates to the technical field of injection molds, in particular to a high-efficiency injection mold convenient to cool.

Background

The mould is a tool for making shaped articles, the tool is composed of various parts, different moulds are composed of different parts, and the processing of the appearance of the articles is realized mainly by changing the physical state of the shaped materials.

Injection mold need cool off the shaping product among the prior art between the drawing of patterns, lets in the cooling water inside the pipeline usually, but because the whole cooling effect of pipeline is comparatively limited to lead to the shaping product not to cool off completely when the drawing of patterns, still can and the phenomenon of taking place the adhesion between the mould, thereby lead to the shaping product to mould plastics the quality relatively poor.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide an efficient injection mold convenient to cool, so as to solve the technical problems that in the prior art, due to the fact that the overall cooling effect of a pipeline is limited, a formed product is not completely cooled during demolding, and the formed product is adhered to the mold, so that the injection quality of the formed product is poor.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high-efficient injection mold convenient to cooling, includes the lower mould, the lower mould top is provided with rather than matched with last mould, the cooling chamber has been seted up to lower mould inside, the inside cooling chamber below that is located of lower mould has seted up the heat dissipation chamber, the lower mould both sides are provided with inlet tube and the drain pipe that is linked together with the cooling chamber respectively, inlet tube and the inside first transmission shaft that all rotates of drain pipe, first transmission shaft inboard all is provided with drive impeller, lower mould both sides bottom all rotates and is connected with the second transmission shaft that extends to heat dissipation intracavity portion, connect through the hold-in range between first transmission shaft and the second transmission shaft, one side that the second transmission shaft is located heat dissipation intracavity portion is fixed with heat dissipation impeller.

By adopting the technical scheme, the cooling cavity matched with the injection molding cavity is formed in the lower mold, the cooling liquid is injected into the cooling cavity through the water inlet pipe, the driving impeller is driven to rotate while the cooling liquid enters, the driving impeller drives the radiating impeller to rotate through the first transmission shaft, the synchronous belt and the second transmission shaft, and the one-way valve is arranged in the drainage pipe, so that the cooling liquid can be discharged through the drainage pipe after the cooling liquid is filled in the cooling cavity to generate certain pressure after being continuously injected into the cooling liquid, the discharged cooling liquid also drives the driving impeller to rotate, and as can be known from the above, the radiating impeller on the other side in the radiating cavity also rotates to generate air flow, so that the two groups of radiating impellers generate air flow and further cool and radiate the cooling liquid while cooling the injection molding product in the cooling cavity, thereby ensuring that the cooling liquid can better cool the injection molding product, the whole cooling effect is better, and the problem that the injection molding product is incompletely cooled to cause adhesion of the mold can not occur.

The utility model is further arranged in such a way that a plurality of groups of heat dissipation holes are uniformly formed in the bottom of the lower die, and the heat dissipation holes are rectangular.

Through adopting above-mentioned technical scheme, the louvre is convenient for the cold and hot air current exchange of heat dissipation intracavity, and the inside coolant liquid of better cooling chamber further cools down.

The utility model is further provided that one side of the inside of the drain pipe close to the cooling cavity is provided with a one-way valve which is a straight-through type.

Through adopting above-mentioned technical scheme, make the cooling chamber inside be full of the coolant liquid just can follow and see through the check valve and discharge from the drain pipe, and through-type check valve is installed inside the drain pipe with threaded connection, and whole dismouting is more convenient.

The utility model is further arranged in such a way that a plurality of groups of fixing sleeves are arranged in the cooling cavity, a plurality of groups of ejector rods which penetrate through the heat dissipation cavity and the fixing sleeves and extend to the top of the lower die are arranged in the lower die, the bottoms of the plurality of groups of ejector rods are fixedly connected with a top plate, and an injection molding flow passage is arranged in the upper die.

Through adopting above-mentioned technical scheme, wherein the ejector pin plays the drawing of patterns effect to injection moulding product, and the runner of moulding plastics plays and moulds plastics to the product, and the runner outside of moulding plastics is provided with the hot runner, and then avoids the phenomenon of solidifying to persisting at the inside molten material of the runner of moulding plastics.

The utility model is further provided with protective cases fixedly arranged on two sides of the lower die, and supporting holes matched with the first transmission shaft and the second transmission shaft are formed in the protective cases.

Through adopting above-mentioned technical scheme, the protective housing plays the guard action to first transmission shaft, secondary drive axle and hold-in range.

In summary, the utility model mainly has the following beneficial effects: the utility model has the advantages that the cooling cavity matched with the injection molding cavity is formed in the lower mold, the cooling liquid is injected into the cooling cavity through the water inlet pipe, the driving impeller is driven to rotate when the cooling liquid enters, the driving impeller drives the radiating impeller to rotate through the first transmission shaft, the synchronous belt and the second transmission shaft, the one-way valve is arranged in the drain pipe, the cooling liquid is discharged through the drain pipe after the cooling liquid is filled in the cooling cavity and the cooling liquid is continuously injected to generate certain pressure, the discharged cooling liquid drives the driving impeller to rotate as well, the radiating impeller on the other side in the radiating cavity also rotates to generate air flow, and the two groups of radiating impellers generate air flow and further cool and radiate the cooling liquid at the same time when the cooling liquid cools the injection molding product in the cooling cavity, so that the cooling liquid can better cool the injection molding product, the whole cooling effect is better, and the problem that the injection molding product is incompletely cooled to cause adhesion of the mold can not occur.

Drawings

FIG. 1 is a schematic diagram of a first perspective of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 4 is a schematic diagram of a second perspective view of the present invention.

In the figure: 1. a lower die; 2. an upper die; 3. a cooling chamber; 4. a heat dissipation cavity; 5. a water inlet pipe; 6. a drain pipe; 7. a first drive shaft; 8. driving the impeller; 9. a second drive shaft; 10. a synchronous belt; 11. a heat dissipation impeller; 12. a protective shell; 13. heat dissipation holes; 14. injection molding a runner; 15. fixing the sleeve; 16. a top rod; 17. a top plate; 18. a one-way valve.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

A high-efficiency injection mold convenient for cooling comprises a lower mold 1, wherein the top of the lower mold 1 is provided with an upper mold 2 matched with the lower mold 1, the lower mold 1 is internally provided with a cooling cavity 3, the lower mold 1 is internally provided with a heat dissipation cavity 4 below the cooling cavity 3, two sides of the lower mold 1 are respectively provided with a water inlet pipe 5 and a water discharge pipe 6 communicated with the cooling cavity 3, the water inlet pipe 5 and the water discharge pipe 6 are respectively and rotatably connected with a first transmission shaft 7, the inner side of the first transmission shaft 7 is provided with a driving impeller 8, the bottoms of two sides of the lower mold 1 are respectively and rotatably connected with a second transmission shaft 9 extending into the heat dissipation cavity 4, the first transmission shaft 7 and the second transmission shaft 9 are connected through a synchronous belt 10, one side of the second transmission shaft 9, which is positioned in the heat dissipation cavity 4, is fixedly provided with a heat dissipation impeller 11, the bottom of the lower mold 1 is uniformly provided with a plurality of heat dissipation holes 13, and the heat dissipation holes 13 are rectangular, wherein louvre 13 is convenient for heat dissipation impeller 11 is rotatory to be produced and flows and carry out the heat exchange, inhale heat dissipation chamber 4 inside with external cold air, the hot air exhaust's of heat dissipation chamber 4 effect, cooling chamber 3 inside is provided with multiunit fixed sleeve 15, 1 inside multiunit that is provided with of lower mould runs through heat dissipation chamber 4, fixed sleeve 15 just extends to the ejector pin 16 at 1 top of lower mould, 16 bottom fixedly connected with roofs 17 of multiunit ejector pin, wherein ejector pin 16 and roof 17 play the drawing of patterns effect to injection moulding product, go up 2 inside runners 14 that mould plastics that are provided with of mould plastics, the runner 14 that moulds plastics is moulded plastics to injection moulding product.

Referring to fig. 2, a check valve 18 is disposed inside the drain pipe 6 at a side close to the cooling chamber 3, and the check valve 18 is a straight-through type, and by the above structure, the check valve 18 is disposed inside the drain pipe 6, so that the cooling liquid can be discharged from the drain pipe 6 through the check valve 18 after the cooling liquid is filled in the cooling chamber 3 by the water inlet pipe 5.

Referring to fig. 1, 2 and 4, protective cases 12 are fixedly disposed on both sides of the lower mold 1, the protective cases 12 protect the first transmission shaft 7, the second transmission shaft 9 and the synchronous belt 10, and support holes matched with the first transmission shaft 7 and the second transmission shaft 9 are disposed in the protective cases 12.

The working principle of the utility model is as follows: when the injection molding device is used, the injection molding device is integrally installed in a mold frame matched with the injection molding device from the outside, then the injection molding runner 14 is connected with an external injection molding machine, and the external injection molding machine can perform injection molding on an injection molding cavity through the injection molding runner 14;

because the cooling cavity 3 matched with the injection molding cavity is formed in the lower die 1, cooling liquid is injected into the cooling cavity 3 through the water inlet pipe 5, the driving impeller 8 is driven to rotate while the cooling liquid enters, the driving impeller 8 drives the heat dissipation impeller 11 to rotate through the first transmission shaft 7, the synchronous belt 10 and the second transmission shaft 9, and the one-way valve 18 is arranged in the drain pipe 6, so that after the cooling liquid is filled in the cooling cavity 3 and continues to be injected with the cooling liquid to generate certain pressure, the cooling liquid can be discharged through the drain pipe 6, the discharged cooling liquid also drives the driving impeller 8 to rotate, and as can be known, the heat dissipation impeller 11 on the other side in the heat dissipation cavity 4 also rotates to generate air flow;

as can be seen from the above, when the cooling liquid cools the injection-molded product inside the cooling cavity 3, the two sets of heat dissipation impellers 11 generate air flows and further cool and dissipate the cooling liquid, so that the cooling liquid can better cool the injection-molded product, the overall cooling effect is better, and the problem of adhesion of the mold due to incomplete cooling of the injection-molded product can be avoided;

after the injection molding product cools off completely, under the effect through external equipment, ejecting upwards to roof 17 and multiunit ejector pin 16, and then multiunit ejector pin 16 can be ejecting to the product after the shaping cooling, and the cooling effect is better after the whole completion of moulding plastics, the effectual work efficiency that has promoted.

Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.

Claims

1. The utility model provides a high-efficient injection mold convenient to cooling, includes lower mould (1), its characterized in that: the top of the lower die (1) is provided with an upper die (2) matched with the lower die, a cooling cavity (3) is arranged in the lower die (1), a heat dissipation cavity (4) is arranged in the lower die (1) and below the cooling cavity (3), a water inlet pipe (5) and a water outlet pipe (6) which are communicated with the cooling cavity (3) are respectively arranged at the two sides of the lower die (1), the inner parts of the water inlet pipe (5) and the water outlet pipe (6) are both rotationally connected with a first transmission shaft (7), the inner sides of the first transmission shafts (7) are provided with driving impellers (8), the bottoms of the two sides of the lower die (1) are rotatably connected with second transmission shafts (9) extending into the heat dissipation cavity (4), the first transmission shaft (7) is connected with the second transmission shaft (9) through a synchronous belt (10), and a heat dissipation impeller (11) is fixed on one side of the second transmission shaft (9) positioned in the heat dissipation cavity (4).

2. A high efficiency injection mold facilitating cooling as claimed in claim 1, wherein: the bottom of the lower die (1) is uniformly provided with a plurality of groups of heat dissipation holes (13), and the heat dissipation holes (13) are rectangular.

3. A high efficiency injection mold facilitating cooling as claimed in claim 1, wherein: one side of the interior of the drain pipe (6) close to the cooling cavity (3) is provided with a one-way valve (18), and the one-way valve (18) is of a straight-through type.

4. A high efficiency injection mold facilitating cooling as claimed in claim 1, wherein: the cooling chamber (3) is inside to be provided with multiunit fixed sleeve (15), lower mould (1) is inside to be provided with multiunit and runs through heat dissipation chamber (4), fixed sleeve (15) and extend to ejector pin (16) at lower mould (1) top, multiunit ejector pin (16) bottom fixedly connected with roof (17), it moulds plastics runner (14) to go up inside being provided with of mould (2).

5. A high efficiency injection mold facilitating cooling as claimed in claim 1, wherein: protective housings (12) are fixedly arranged on two sides of the lower die (1), and supporting holes matched with the first transmission shaft (7) and the second transmission shaft (9) are formed in the protective housings (12).