CN217454832U

CN217454832U - High-efficient cooling structure of injection mold

Info

Publication number: CN217454832U
Application number: CN202221484266.4U
Authority: CN
Inventors: 孟志锋; 吴测
Original assignee: Zhejiang Digo Mould Technology Co ltd
Current assignee: Zhejiang Digo Mould Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-09-20
Anticipated expiration: 2032-06-15

Abstract

The utility model discloses a high-efficient cooling structure of injection mold, the on-line screen storage device comprises a base, be fixed with the lower mould on the base, be equipped with the mould on the lower mould, the lower mould top surface is equipped with the shaping die cavity, be equipped with the inner chamber in the lower mould, the cooling tube is equipped with in the inner chamber, the cooling tube is connected to the cooling tube, the cooling tube import is connected through the water pump to the cooling tube, a plurality of fresh air inlets have evenly been seted up to the lower mould bottom plate, the base top surface is equipped with the air intake, the welding of base bottom surface has annular cover, the bottom end is fixed with the mounting panel through a plurality of mounts in the annular cover, the mounting panel bottom is fixed with the motor, motor output shaft is fixed with the fan, lower mould circumference is equipped with a plurality of exhaust vents. Has the advantages that: the cooling pipe consists of a coil pipe positioned below the molding die cavity and a spiral pipe spirally wound around the coil pipe, so that the cooling efficiency is high; the cooling speed of the lower die is further improved by blowing air into the inner cavity for heat dissipation; after the air that insufflates comes out from the exhaust vent, the radiating effect of heating panel is accelerated, and then gives the lower mould more quick cooling.

Description

High-efficient cooling structure of injection mold

Technical Field

The utility model belongs to the technical field of injection mold, concretely relates to high-efficient cooling structure of injection mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate sizes, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification.

Because the injection mold needs to cool the molten material entering the mold cavity in the molding process, the cooling is generally carried out only by simply introducing cooling liquid into the lower mold at present, the cooling speed is slow, and the molding efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient cooling structure of injection mold to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an efficient cooling structure of an injection mold comprises a base, wherein a lower mold is fixed on the base, an upper mold is arranged on the lower mold, a molding die cavity is arranged in the middle of the top surface of the lower die, an inner cavity surrounding the molding die cavity is arranged in the lower die, a cooling pipe is arranged in the inner cavity, an outlet at the top end of the cooling pipe penetrates through the lower die and then is connected with a condensed water tank, the bottom end of the condensed water tank is connected with the inlet of the cooling pipe through a water pump, the lower die bottom plate is uniformly provided with a plurality of air inlet holes which penetrate through the inner cavity, the top surface of the base is provided with an air inlet positioned below the air inlet hole, the bottom surface of the base is welded with an annular cover positioned below the air inlet, the bottom end of the annular cover is fixed with a mounting plate through a plurality of fixing frames, the bottom of the mounting plate is fixed with a motor, the motor output shaft penetrates through the mounting plate and then is fixedly provided with a fan, and a plurality of air outlet holes are formed in the circumferential direction of the lower die.

Preferably, each side surface of the outer wall of the lower die is provided with a plurality of heat dissipation plates at equal intervals, the air outlet holes are dispersedly located between the heat dissipation plates, and the top ends of the cooling pipes penetrate out of the two adjacent heat dissipation plates.

Preferably, a plurality of limiting rods are arranged at the top edge of the lower die, and limiting grooves corresponding to the limiting rods are formed in the bottom surface of the upper die.

Preferably, the lower die base plate is of a detachable structure and is fixed through bolts.

Preferably, the cooling tube is comprised of a coil tube located below the molding cavity and a spiral tube spirally wound therearound within the inner cavity.

Preferably, a plurality of reinforcing ribs are welded between the annular cover and the base.

Preferably, a filter screen is arranged between every two adjacent fixing frames.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the cooling pipe is composed of a coil pipe positioned below the molding die cavity and a spiral pipe spirally wound around the coil pipe in the inner cavity, so that the cooling efficiency is high.

2. The motor is started to drive the fan to rotate, and then the air is blown into the inner cavity through the air inlet and the air inlet hole to dissipate heat, so that the cooling speed of the lower die is further increased.

3. After the air that insufflates comes out from the exhaust vent, the radiating effect of heating panel is accelerated, and then gives the lower mould more quick cooling.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

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

fig. 3 is a schematic view of a partial top view of the cooling tube of the present invention;

fig. 4 is a schematic view of the structure of the annular cover, the fixing frame, the mounting plate, the motor, and the filter net in the bottom view.

In the figure: 1. a base; 2. a lower die; 3. an upper die; 4. molding a mold cavity; 5. an inner cavity; 6. a cooling tube; 7. a condensed water tank; 8. a water pump; 9. an air inlet hole; 10. an air inlet; 11. an annular shroud; 12. a fixed mount; 13. mounting a plate; 14. a motor; 15. a fan; 16. an air outlet; 17. a heat dissipation plate; 18. a limiting rod; 19. a limiting groove; 20. a bolt; 21. reinforcing ribs; 22. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, the present invention provides a technical solution: an efficient cooling structure of an injection mold comprises a base 1, wherein a lower mold 2 is fixed on the base 1, an upper mold 3 is arranged on the lower mold 2, a forming mold cavity 4 is arranged in the middle of the top surface of the lower mold 2, an inner cavity 5 surrounding the forming mold cavity 4 is arranged in the lower mold 2, a cooling pipe 6 is arranged in the inner cavity 5, and cooling water is introduced into the cooling pipe 6 to cool the lower mold 2 and the forming mold cavity 4; an outlet at the top end of the cooling pipe 6 penetrates through the lower die 2 and then is connected with a condensed water tank 7, the bottom end of the condensed water tank 7 is connected with an inlet of the cooling pipe 6 through a water pump 8, and cooling water in the condensed water tank 7 can be pumped into the cooling pipe 6 to flow circularly after the water pump 8 is started; a plurality of air inlet holes 9 penetrating through the inner cavity 5 are uniformly formed in the bottom plate of the lower die 2, an air inlet 10 positioned below the air inlet holes 9 is formed in the top surface of the base 1, an annular cover 11 positioned below the air inlet 10 is welded to the bottom surface of the base 1, a mounting plate 13 is fixed at the inner bottom end of the annular cover 11 through a plurality of fixing frames 12, a motor 14 is fixed at the bottom of the mounting plate 13, a fan 15 is fixed after an output shaft of the motor 14 penetrates through the mounting plate 13, the motor 14 is started to drive the fan 15 to rotate, and then air is blown into the inner cavity 5 through the air inlet holes 10 and the air inlet holes 9 for heat dissipation, so that the cooling speed of the lower die 2 is further increased; the lower die 2 is circumferentially provided with a plurality of air outlet holes 16, so that air blown into the inner cavity 5 can be blown out from the air outlet holes 16.

Specifically, each side surface of the outer wall of the lower die 2 is provided with a plurality of heat dissipation plates 17 at equal intervals, the air outlet holes 16 are dispersedly located between the heat dissipation plates 17, and the top ends of the cooling pipes 6 penetrate out from the space between two adjacent heat dissipation plates 17; in this embodiment, after the blown air comes out from the air outlet 16, the heat dissipation effect of the heat dissipation plate 17 is accelerated, and the lower mold 2 is cooled more rapidly.

Specifically, a plurality of limiting rods 18 are arranged at the top end edge of the lower die 2, and a limiting groove 19 corresponding to the limiting rods 18 is arranged on the bottom surface of the upper die 3; in this embodiment, when the upper die 3 is pressed against the lower die 2, the stopper rod 18 can perform the stopper operation with higher accuracy.

Specifically, the bottom plate of the lower die 2 is of a detachable structure and is fixed by bolts 20; in this embodiment, the mounting and dismounting of the cooling tube 6 within the inner cavity 5 is facilitated.

In particular, the cooling duct 6 consists, inside the inner cavity 5, of a coil located below the moulding cavity 4 and a spiral wound helically around it; in this embodiment, the cooling efficiency is high.

Specifically, a plurality of reinforcing ribs 21 are welded between the annular cover 11 and the base 1; in the present embodiment, the stability of the connection between the annular cover 11 and the base 1 is further enhanced.

Specifically, a filter screen 22 is installed between each two adjacent fixing frames 12; in this embodiment, the air blown into the cavity 5 can be further filtered.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

The working principle is as follows: after the upper die 3 is covered on the lower die 2, after molten materials are injected into the molding die cavity 4 through a feeding port at the top of the upper die 3, when molding and cooling are carried out, cooling water in a condensed water tank 7 is pumped into a cooling pipe 6 through a water pump 8, and molten materials in the lower die 2 and the molding die cavity 4 are rapidly cooled; the cooling pipe 6 consists of a coil pipe positioned below the molding die cavity 4 and a spiral pipe spirally wound around the coil pipe in the inner cavity 5, so that the cooling efficiency is high; the motor 14 is started to drive the fan 15 to rotate, and then air is blown into the inner cavity 5 through the air inlet 10 and the air inlet hole 9 for heat dissipation, so that the cooling speed of the lower die 2 is further increased; and after the blown air comes out from the air outlet 16, the heat dissipation effect of the heat dissipation plate 17 is accelerated, and the lower die 2 is cooled more quickly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 high-efficiency cooling structure of the injection mold is characterized by comprising a base (1), wherein a lower mold (2) is fixed on the base (1), an upper mold (3) is arranged on the lower mold (2), a molding mold cavity (4) is arranged in the middle of the top surface of the lower mold (2), an inner cavity (5) surrounding the molding mold cavity (4) is arranged in the lower mold (2), a cooling pipe (6) is arranged in the inner cavity (5), an outlet at the top end of the cooling pipe (6) penetrates through the lower mold (2) and then is connected with a condensate water tank (7), the bottom end of the condensate water tank (7) is connected with an inlet of the cooling pipe (6) through a water pump (8), a plurality of air inlet holes (9) penetrating through the inner cavity (5) are uniformly formed in the bottom plate of the lower mold (2), an air inlet (10) positioned below the air inlet holes (9) is arranged on the top surface of the base (1), and an annular cover (11) positioned below the air inlet (10) is welded on the bottom surface of the base (1), annular cover (11) inner bottom is fixed with mounting panel (13) through a plurality of mount (12), mounting panel (13) bottom is fixed with motor (14), motor (14) output shaft runs through mounting panel (13) after-fixing has fan (15), lower mould (2) circumference is equipped with a plurality of exhaust vents (16).

2. The efficient cooling structure of the injection mold according to claim 1, wherein a plurality of heat dissipation plates (17) are arranged on each side surface of the outer wall of the lower mold (2) at equal intervals, the air outlet holes (16) are dispersedly located between the heat dissipation plates (17), and the top ends of the cooling pipes (6) penetrate out from two adjacent heat dissipation plates (17).

3. An efficient cooling structure for injection mold according to claim 1, characterized in that the top edge of the lower mold (2) is provided with a plurality of limiting rods (18), and the bottom surface of the upper mold (3) is provided with limiting grooves (19) corresponding to the limiting rods (18).

4. An efficient cooling structure for injection mold according to claim 1, characterized in that the bottom plate of the lower mold (2) is detachable and fixed by bolts (20).

5. An injection mold efficient cooling structure as claimed in claim 1, characterized in that said cooling tube (6) is composed of a coil pipe located below said molding cavity (4) and a spiral pipe spirally wound therearound in said inner cavity (5).

6. An injection mold efficient cooling structure according to claim 1, characterized in that a plurality of reinforcing ribs (21) are welded between the annular cover (11) and the base (1).

7. An efficient cooling structure for injection mold according to claim 1, characterized in that a filtering net (22) is installed between the adjacent fixing frames (12).