CN211868532U

CN211868532U - Injection mold cooling system and injection mold

Info

Publication number: CN211868532U
Application number: CN202020417964.7U
Authority: CN
Inventors: 曾德运; 张瑞宾
Original assignee: Shenzhen Chuang Long Plastic Mould Co ltd
Current assignee: Shenzhen Chuang Long Plastic Mould Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-11-06
Anticipated expiration: 2030-03-27

Abstract

The utility model belongs to the technical field of injection molding, and discloses an injection mold cooling system and an injection mold, which comprises a lower die holder, wherein a groove is arranged at the middle position of the upper wall of the lower die holder, a lower die is arranged in the groove, a serpentine cooling pipe is laid at the bottom of the groove, one end of the serpentine cooling pipe is connected with a water inlet pipe, the water inlet pipe penetrates through the lower die holder and extends to the outside of the lower die holder, one end of the serpentine cooling pipe, which is far away from the water inlet pipe, is connected with a water outlet pipe, the water outlet pipe penetrates through the lower die holder and extends to the outside of the lower die holder, the utility model uses the serpentine cooling pipe for cooling, and lays the serpentine cooling pipe at the bottom of the lower die, so that the contact area between cold water and the mold can be effectively increased, thereby accelerating the cooling molding of injection molding materials, increasing the working efficiency, in, the waste of water resources is avoided, and the utilization rate of the water resources is improved.

Description

Injection mold cooling system and injection mold

Technical Field

The utility model belongs to the technical field of injection-molded machining, concretely relates to injection mold cooling system and 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.

In chinese patent with patent number CN201920968762.9, an injection mold cooling system and an injection mold are disclosed, wherein "cooling water and spray pipes are utilized to cool a mold with a plurality of cavities, thereby improving the production efficiency", but the straight pipe is adopted in the patent for cooling, the area of the straight pipe contact mold is small, the cooling efficiency is low, in addition, the traditional injection mold is not provided with an accurate butt joint structure, the upper mold and the lower mold are not firm and accurate enough when being butted, the deviation is easy to occur when the injection mold is pressed by force, and the injection quality is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold cooling system and injection mold to solve the traditional injection mold cooling system who provides in the above-mentioned background art and adopt the straight tube cooling, problem that cooling efficiency is low does not set up accurate butt joint structure in addition, the firm accurate problem inadequately when going up the lower mould butt joint.

In order to achieve the above object, the utility model provides a following technical scheme: injection mold cooling system and injection mold, including the die holder, the last wall intermediate position department of going up of die holder sets up flutedly, the internally mounted of recess has the lower mould, and has laid snakelike cooling tube in the inside bottom of recess, the one end of snakelike cooling tube is connected with the inlet tube, the inlet tube runs through the die holder and extends to its outside, the one end that the inlet tube was kept away from to snakelike cooling tube is connected with the outlet pipe, the outlet pipe runs through the die holder and extends to its outside, the mould is installed on the top of lower mould, the mouth of moulding plastics has been seted up to last wall one end of going up the mould.

Preferably, the two side walls of the upper die are symmetrically connected with limit rods, the two sides of the upper surface wall of the lower die holder are symmetrically connected with fixing columns, through holes matched with the limit rods are axially formed in the fixing columns, and the bottom of the inner portion of the limit rods is connected with a buffer spring.

Preferably, the upper surface wall of the upper die and the end far away from the injection molding opening are connected with an exhaust pipe, and an exhaust valve is installed on the surface wall of the exhaust pipe.

Preferably, the bottom end of the lower die holder is fixed with a mounting plate, and mounting holes are symmetrically formed in four corners of the upper wall of the mounting plate.

Preferably, a handle is installed at the middle position of the top end of the upper die, and an arc part is formed by arc transition of the inner surface wall of the handle.

An injection mold comprises the injection mold cooling system, and the injection mold cooling system is installed inside the injection mold.

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

(1) the utility model discloses a change into snakelike cooling tube cooling, and lay snakelike cooling tube at the lower die bottom, can effectively increase the area of contact of cold water and mould to accelerate the cooling shaping of the material of moulding plastics, increased work efficiency, in addition, cold water can follow the outlet pipe after the heat transfer and flow and collect, repeatedly usable after the cooling, avoided the waste of water resource, improved the utilization ratio of water resource.

(2) The utility model discloses a cooperation of gag lever post, fixed column and through-hole when last lower mould butt joint, can make and go up the mould and stabilize the accuracy and install on the lower mould, and the butt joint is reliable firm, has effectively avoided the easy defect that takes place the skew of mould unloading when moulding plastics, has guaranteed good finished product quality of moulding plastics.

Drawings

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

FIG. 2 is a top view of the lower die holder of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

in the figure: 1-lower die holder, 2-groove, 3-serpentine cooling pipe, 4-water inlet pipe, 5-limiting rod, 6-upper die, 7-injection molding opening, 8-fixing column, 9-water outlet pipe, 10-lower die, 11-mounting plate, 12-through hole, 13-buffer spring, 14-exhaust pipe and 15-exhaust valve.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an injection mold cooling system and an injection mold comprise a lower die holder 1, a groove 2 is arranged at the middle position of the upper surface wall of the lower die holder 1, a lower die 10 is arranged inside the groove 2, a serpentine cooling pipe 3 is paved at the bottom inside the groove 2, the serpentine cooling pipe 3 is paved at the bottom end of the lower die 10, the contact area of cold water and a mold can be effectively increased, thereby accelerating the cooling forming of injection molding materials, and increasing the working efficiency, in addition, the cold water can flow out from a water outlet pipe 9 for collection after heat exchange, and can be reused after cooling, thereby avoiding the waste of water resources, improving the utilization rate of water resources, one end of the serpentine cooling pipe 3 is connected with a water inlet pipe 4, the water inlet pipe 4 penetrates through the lower die holder 1 and extends to the outside, one end of the serpentine cooling pipe 3, which is far away from the water inlet pipe 4, is connected with the water outlet pipe 9, the, an injection molding opening 7 is formed in one end of the upper wall of the upper die 6.

Further, the both sides wall symmetric connection of going up mould 6 has gag lever post 5, the last upper wall bilateral symmetric connection of die holder 1 has fixed column 8, through-hole 12 with 5 looks adaptations of gag lever post is seted up to the axial of fixed column 8, the inside bottom of gag lever post 5 is connected with buffer spring 13, when last lower mould butt joint, can make the gag lever post 5 of going up the mould 6 lateral wall insert establish into through-hole 12 that 8 axial of fixed column were seted up, can make and go up mould 6 and stably accurately install on lower mould 10, the butt joint is reliable firm, the defect that the skew easily takes place for the upper and lower mould when moulding plastics has effectively been avoided, good finished product quality of moulding plastics has been.

Furthermore, the upper surface wall of the upper die 6 and the end far away from the injection molding port 7 are connected with an exhaust pipe 14, the exhaust valve 15 is installed on the surface wall of the exhaust pipe 14, when injection molding is carried out, the exhaust valve 15 can be slightly opened in real time, residual gas in a die cavity is discharged from the exhaust pipe 14 when injection molding is carried out, bubble holes can be effectively prevented from being generated in a finished product, and the quality of the finished product is guaranteed.

Further, the bottom end of the lower die holder 1 is fixed with a mounting plate 11, mounting holes are symmetrically formed in the positions of four corners of the upper wall of the mounting plate 11, and a worker can fix the die by penetrating bolts through the mounting holes formed in the upper wall of the mounting plate 11, so that the stability during injection molding can be guaranteed.

Further, go up the top intermediate position department of mould 6 and install the handle, the interior table wall circular arc transition of handle forms circular arc portion, and when carrying this mould, the staff can hold the handle, avoids rocking, and the interior table wall of handle with the circular arc transition in addition laminates the palm more when the staff holds, has increased the comfort when holding the handle.

The utility model provides an injection mold, includes foretell injection mold cooling system, and injection mold cooling system installs in injection mold's inside, and the inside cooling system's of injection mold installation can accelerate liquid solidification rate, improves shaping efficiency.

The utility model discloses a theory of operation and use flow: when the utility model is used, the upper die 6 is firstly pressed down, the limiting rod 5 on the side wall of the upper die 6 is inserted into the through hole 12 axially arranged on the fixed post 8, so that the upper die 6 is stably and accurately arranged on the lower die 10, after the upper die is arranged, the liquid material is injected into the die cavity from the injection port 7, when the injection molding is carried out, the exhaust valve 15 can be slightly opened in real time, and the residual gas in the mold cavity during the injection molding is discharged from the exhaust pipe 14, so that the bubble holes of the finished product can be effectively avoided, in addition, during injection molding, cooling water can be added from the water inlet pipe 4 and flows to the serpentine cooling pipe 3 laid at the bottom end of the lower mold 10 along the water inlet pipe 4, so that the contact area between the cold water and the mold can be effectively increased, thereby accelerate the cooling shaping of injection molding material, increase work efficiency, in addition, cold water can follow outlet pipe 9 behind the heat transfer and flow out and collect, repeatedly usable after the cooling, avoided the waste of water resource.

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. Injection mold cooling system and injection mold, its characterized in that: including die holder (1), the last wall intermediate position department of die holder (1) sets up fluted (2), the internally mounted of recess (2) has lower mould (10), and has laid snakelike cooling tube (3) bottom the inside of recess (2), the one end of snakelike cooling tube (3) is connected with inlet tube (4), inlet tube (4) run through die holder (1) and extend to its outside, the one end that inlet tube (4) were kept away from in snakelike cooling tube (3) is connected with outlet pipe (9), outlet pipe (9) run through die holder (1) and extend to its outside, mould (6) are installed on the top of lower mould (10), go up the last wall one end of mould (6) and seted up mouth (7) of moulding plastics.

2. The injection mold cooling system and injection mold of claim 1, wherein: the die is characterized in that two side walls of the upper die (6) are symmetrically connected with limiting rods (5), two sides of the upper wall of the lower die holder (1) are symmetrically connected with fixing columns (8), through holes (12) matched with the limiting rods (5) are formed in the axial direction of the fixing columns (8), and buffer springs (13) are connected to the bottom inside the limiting rods (5).

3. The injection mold cooling system and injection mold of claim 1, wherein: go up the surface wall and keep away from the one end of moulding plastics mouth (7) on mould (6) and be connected with blast pipe (14), discharge valve (15) are installed to the surface wall of blast pipe (14).

4. The injection mold cooling system and injection mold of claim 1, wherein: the bottom end of the lower die holder (1) is fixed with a mounting plate (11), and mounting holes are symmetrically formed in the positions of four corners of the upper wall of the mounting plate (11).

5. The injection mold cooling system and injection mold of claim 1, wherein: and a lifting handle is arranged at the middle position of the top end of the upper die (6), and the arc of the inner surface wall of the lifting handle is transited to form an arc part.

6. An injection mold, its characterized in that: comprising an injection mould cooling system according to any of the claims 1-5, which is mounted inside an injection mould.