CN112477043A

CN112477043A - Dual cooling mechanism for injection mold

Info

Publication number: CN112477043A
Application number: CN202011250884.8A
Authority: CN
Inventors: 夏勇
Original assignee: Chuzhou Straw Machinery Technology Co ltd
Current assignee: Chuzhou Straw Machinery Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-03-12

Abstract

The invention belongs to the technical field of mold cooling, and particularly relates to a dual cooling mechanism for an injection mold, which comprises a bottom plate, a movable mold and a fixed mold, wherein the movable mold and the fixed mold are both positioned on the upper surface of the bottom plate, the movable mold is positioned on the left side of the fixed mold, a support plate is fixedly connected to the right side wall of the fixed mold, the bottom end of the support plate is fixedly connected to the right side of the upper surface of the bottom plate, radiating fins are uniformly arranged on the outer walls of the movable mold and the fixed mold, and built-in cooling systems are arranged on the left side wall of the movable mold and the. A built-in cooling system is combined among the water inlet, the water outlet and the circulating water channel, and the movable mold and the fixed mold are cooled from the inside, so that the raw materials in the movable mold and the fixed mold are quickly molded; through enclosing the water cover, the catch basin, leading to the tank, the spray pipe, suction pump, the cooperation between the water distributor, carry out the cooling action to movable mould, cover half from the outside for all cool off the heat dissipation inside and outside movable mould, the cover half temperature is reduced fast, is difficult to damage movable mould, cover half.

Description

Dual cooling mechanism for injection mold

Technical Field

The invention relates to the technical field of mold cooling, in particular to a double cooling mechanism for an injection mold.

Background

An injection molding machine (an injection machine or an injection molding machine for short) is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die. An injection molding machine (injection molding machine) has two basic components: injection and clamping units for melting and feeding plastic into a mold.

Because injection mold's die part and terrace die part can stand the higher plastic material of temperature for a long time, the condition of deformation and damage can appear, consequently, need cool off injection mold fast when injection moulding, also make inside raw materials rapid prototyping, current cooling method is built-in water-cooled mode usually, perhaps outside forced air cooling, cooling method is single like this for the inside and outside difference in temperature of mould body is big, thereby the mould deformation or even fracture appears easily.

Disclosure of Invention

The invention aims to provide a double cooling mechanism for an injection mold, which aims to solve the problem that the existing cooling mode proposed in the background art is usually a built-in water cooling mode or external air cooling mode, so that the cooling mode is single, the temperature difference between the inside and the outside of a mold body is large, and the mold is easy to deform and even crack.

In order to achieve the purpose, the invention provides the following technical scheme: a dual cooling mechanism for an injection mold comprises a bottom plate, a movable mold and a fixed mold, wherein the movable mold and the fixed mold are both positioned on the upper surface of the bottom plate, the movable mold is positioned on the left side of the fixed mold, a support plate is fixedly connected to the right side wall of the fixed mold, the bottom end of the support plate is fixedly connected to the right side of the upper surface of the bottom plate, heat radiating fins are uniformly arranged on the outer walls of the movable mold and the fixed mold, built-in cooling systems are respectively arranged on the left side wall of the movable mold and the right side wall of the fixed mold, each built-in cooling system comprises a water inlet, a water outlet and a circulation water channel, the circulation water channels are pre-arranged in the bodies of the movable mold and the fixed mold, the water inlets and the water outlets are respectively connected with the two ends of the circulation water channels, a water enclosing cover is arranged on the upper surface of, lead to the groove and be located the inside of enclosing the water cover, lead to the inside intercommunication of groove and catch basin, be connected with the spray pipe on the lateral wall of catch basin, the spray pipe extends to the upside of movable mould and cover half, the upper end of spray pipe is connected with the water distributor, be provided with the suction pump on the pipeline of spray pipe, the water in suction pump will the catch basin is taken out and is inputed the water distributor through the spray pipe, and the water distributor is with water distribution to the movable mould on with the cover half for water drenches on the radiating fin surface of movable mould and cover half from last downwards, to movable mould and cover half surface heat dissipation, and built-in cooling system is to the inside heat dissipation of movable mould and cover half, interior outer heat dissipation simultaneously, and the heat.

Preferably, the water inlet is externally connected with a cooling water storage end, the cooling water storage end inputs cooling water into the circulating water channel through the water inlet, and the used cooling water flows back and is subjected to heat dissipation treatment through the water outlet.

Preferably, a sealing ring is arranged at the contact position of the water enclosing cover and the upper surface of the bottom plate.

Preferably, the cross section of the through groove is in a shape with a large top and a small bottom.

Preferably, when the movable mould and the fixed mould are closed, the water distribution pipe is positioned right above the movable mould and the fixed mould.

Preferably, the bottom of the movable mold is in sliding connection with the upper surface of the bottom plate through a slide rail in a matching manner.

Preferably, the side wall of the movable die is connected with a hydraulic driving mechanism, and the hydraulic driving mechanism drives the movable die to move so as to realize die opening and die closing.

Compared with the prior art, the invention has the beneficial effects that:

1) a built-in cooling system is combined among the water inlet, the water outlet and the circulating water channel, and the movable mold and the fixed mold are cooled from the inside, so that the raw materials in the movable mold and the fixed mold are quickly molded;

2) through enclosing the water cover, the catch basin, leading to the tank, the spray pipe, suction pump, the cooperation between the water distributor, carry out the cooling action to movable mould, cover half from the outside for all cool off the heat dissipation inside and outside movable mould, the cover half temperature is reduced fast, is difficult to damage movable mould, cover half.

Drawings

FIG. 1 is a schematic view of the mold opening of the present invention;

FIG. 2 is a schematic structural diagram of the invention during mold closing;

FIG. 3 is a schematic cross-sectional view of the bottom plate and the water collecting tank of the present invention;

fig. 4 is a schematic structural diagram of the built-in cooling system of the present invention.

In the figure: the water distribution device comprises a base plate 1, a moving die 2, a fixed die 3, a built-in cooling system 4, a water inlet 41, a water outlet 42, a circulating water channel 43, a support plate 5, a water surrounding cover 6, a water collecting tank 7, a through groove 8, a water spray pipe 9, a suction pump 10 and a water distribution pipe 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the 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, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-4, the present invention provides a technical solution: a dual cooling mechanism for an injection mold comprises a bottom plate 1, a movable mold 2 and a fixed mold 3, wherein the movable mold 2 and the fixed mold 3 are both positioned on the upper surface of the bottom plate 1, the movable mold 2 is positioned on the left side of the fixed mold 3, a support plate 5 is fixedly connected to the right side wall of the fixed mold 3, the bottom end of the support plate 5 is fixedly connected to the right side of the upper surface of the bottom plate 1, heat radiating fins are uniformly arranged on the outer walls of the movable mold 2 and the fixed mold 3, a built-in cooling system 4 is arranged on the left side wall of the movable mold 2 and the right side wall of the fixed mold 3, the built-in cooling system 4 comprises a water inlet 41, a water outlet 42 and a circulating water channel 43, the circulating water channel 43 is pre-arranged in the movable mold 2 and the fixed mold 3, the water inlet 41 and the water outlet 42 are respectively connected to two ends of the circulating water channel 43, a water cover 6, a water collecting tank 7 is arranged at the bottom of the bottom plate 1, a through groove 8 is longitudinally arranged in the middle of the body of the bottom plate 1, the through groove 8 is positioned inside the water enclosing cover 6, the through groove 8 is communicated with the inside of the water collecting tank 7, the side wall of the water collecting tank 7 is connected with a water spraying pipe 9, the water spraying pipe 9 extends to the upper sides of the movable mold 2 and the fixed mold 3, the upper end of the water spraying pipe 9 is connected with a water distribution pipe 11, a suction pump 10 is arranged on the pipeline of the water spraying pipe 9, the suction pump 10 pumps out the water in the water collecting tank 7 and inputs the water into the water distribution pipe 11 through the water spraying pipe 9, the water distributor 11 distributes water to the movable mold 2 and the fixed mold 3, so that the water is sprayed on the surfaces of the radiating fins of the movable mold 2 and the fixed mold 3 from top to bottom, the surfaces of the movable mold 2 and the fixed mold 3 are radiated, the built-in cooling system 4 radiates the inside of the movable mold 2 and the fixed mold 3, and meanwhile, the heat is radiated inside and outside, and the heat loss is balanced.

Furthermore, the water inlet 41 is externally connected with a cooling water storage end, the cooling water storage end inputs cooling water into the circulation water channel 43 through the water inlet 41, and the used cooling water flows back through the water outlet 42 and is subjected to heat dissipation treatment.

Further, a sealing ring is arranged at the contact position of the water enclosing cover 6 and the upper surface of the bottom plate 1.

Further, the cross section of the through groove 8 is in a shape with a large top and a small bottom.

Further, when the movable mold 2 and the fixed mold 3 are closed, the water distribution pipe 11 is positioned right above the movable mold 2 and the fixed mold 3.

Further, the bottom of the movable mold 2 is in sliding connection with the upper surface of the bottom plate 1 through a slide rail in a matching manner.

Furthermore, a hydraulic driving mechanism is connected to the side wall of the movable mold 2, and the hydraulic driving mechanism drives the movable mold 2 to move, so that mold opening and mold closing are realized.

The working principle is as follows: when the die is used, the movable die 2 and the fixed die 3 are closed under the driving action of the hydraulic driving mechanism, a molten raw material is injected into a die cavity formed between the movable die 2 and the fixed die 3 through the injection port at high pressure, and after the die is formed, the movable die 2 is separated from the fixed die 3, so that a formed product can be taken out of the die cavity;

in the mold closing process, cooling water is injected from the water inlet 41, flows in the water flowing channel 43 and flows out from the water outlet 42, and heat near the mold cavity is taken away, so that the raw material in the mold cavity is rapidly cooled and molded;

the cooling water is stored in the water collecting tank 7 in advance, the cooling water in the water collecting tank 7 is conveyed to the water distribution pipe 11 through the water spraying pipe 9 under the suction action of the suction pump 10 and is sprayed and dropped on the surfaces of the movable mold 2 and the fixed mold 3 from the water distribution pipe 11 to take away the heat on the surfaces of the movable mold 2 and the fixed mold 3, and the cooling water falls into the range of the water surrounding cover 6 and flows back into the water collecting tank 7 through the through groove 8 in a concentrated mode.

While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dual cooling body that injection mold used, includes bottom plate (1), movable mould (2) and cover half (3), its characterized in that: the movable mould (2) and the fixed mould (3) are both positioned on the upper surface of the base plate (1), the movable mould (2) is positioned on the left side of the fixed mould (3), a support plate (5) is fixedly connected to the right side wall of the fixed mould (3), the bottom end of the support plate (5) is fixedly connected to the right side of the upper surface of the base plate (1), radiating fins are uniformly arranged on the outer walls of the movable mould (2) and the fixed mould (3), a built-in cooling system (4) is arranged on each of the left side wall of the movable mould (2) and the right side wall of the fixed mould (3), the built-in cooling system (4) comprises a water inlet (41), a water outlet (42) and a circulating water channel (43), the circulating water channel (43) is arranged in the bodies of the movable mould (2) and the fixed mould (3) in advance, the water inlet (41) and the water outlet (42) are respectively connected to the two ends of the, the water distribution device is characterized in that the movable mold (2) and the fixed mold (3) are both positioned on the inner side of the water surrounding cover (6), a water collecting tank (7) is arranged at the bottom of the bottom plate (1), a through groove (8) is vertically formed in the middle of the body of the bottom plate (1), the through groove (8) is positioned inside the water surrounding cover (6), the through groove (8) is communicated with the inside of the water collecting tank (7), a water spraying pipe (9) is connected to the side wall of the water collecting tank (7), the water spraying pipe (9) extends to the upper sides of the movable mold (2) and the fixed mold (3), a water distribution pipe (11) is connected to the upper end of the water spraying pipe (9), a suction pump (10) is arranged on a pipeline of the water spraying pipe (9), the water in the water collecting tank (7) is pumped out by the suction pump (10) and is input into the water distribution pipe (11) through the water spraying pipe (9), and the water distribution pipe (, the water is sprayed on the surfaces of the radiating fins of the movable mold (2) and the fixed mold (3) from top to bottom, the surfaces of the movable mold (2) and the fixed mold (3) are radiated, the built-in cooling system (4) radiates the inside of the movable mold (2) and the fixed mold (3), and meanwhile, the heat is radiated inside and outside, and the heat loss is balanced.

2. A dual cooling mechanism for an injection mold as defined in claim 1, wherein: the water inlet (41) is externally connected with a cooling water storage end, the cooling water storage end inputs cooling water into the circulating water channel (43) through the water inlet (41), and the used cooling water flows back and is subjected to heat dissipation treatment through the water outlet (42).

3. A dual cooling mechanism for an injection mold as defined in claim 1, wherein: and a sealing ring is arranged at the contact position of the water enclosing cover (6) and the upper surface of the bottom plate (1).

4. A dual cooling mechanism for an injection mold as defined in claim 1, wherein: the cross section of the through groove (8) is in a shape with a large top and a small bottom.

5. A dual cooling mechanism for an injection mold as defined in claim 1, wherein: when the movable mould (2) and the fixed mould (3) are closed, the water distribution pipe (11) is positioned on the right upper side of the movable mould (2) and the fixed mould (3).

6. A dual cooling mechanism for an injection mold as defined in claim 1, wherein: the bottom of the movable mold (2) is in sliding connection with the upper surface of the bottom plate (1) through the slide rail in a matched mode.

7. A dual cooling mechanism for an injection mold as defined in claim 1, wherein: and the side wall of the movable die (2) is connected with a hydraulic driving mechanism, and the hydraulic driving mechanism drives the movable die (2) to move so as to realize die opening and die closing.