CN111844645A

CN111844645A - Mould for injection moulding

Info

Publication number: CN111844645A
Application number: CN202010417650.1A
Authority: CN
Inventors: 葛德雷
Original assignee: Anhui Hongzhuan Packaging Products Technology Co ltd
Current assignee: Anhui Hongzhuan Packaging Products Technology Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-10-30

Abstract

The invention discloses a mold for injection molding, which comprises a base, wherein the middle part of the upper end of the base is fixedly connected with a lower mold, the middle part of the upper end of the lower mold is provided with a cavity, the right end of the lower mold is fixedly connected with a first mounting seat on the base, the left end of the lower mold is fixedly connected with a second mounting seat on the base, a lifting plate is arranged between the first mounting seat and the second mounting seat, the lower end of the lifting plate is provided with a lifting seat, the middle part of the lower end of the lifting seat is fixedly connected with an upper mold, the middle parts of the lifting seat and the upper mold are provided with through holes, and sprue bushings are inserted. According to the injection mold, manual mold opening and mold closing are not needed, the operation is simple and convenient, the product can be taken out of the cavity through the L-shaped plate in the mold opening process, manual operation is not needed, the material can be prevented from being cooled in the pouring process through the sprue bush, waste is reduced, cooling is accelerated by cooling the cavity, and the working efficiency is improved.

Description

Mould for injection moulding

Technical Field

The invention relates to the field of molds, in particular to a mold for injection molding.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The method realizes the processing of the appearance of the article mainly by changing the physical state of the formed material, and the article is called as 'industrial mother'.

Traditional injection mold has more defect, for example modern mould generally all adopts manual operation's mode to open and close lower mould, troublesome poeration not only, waste time, and accident such as scald takes place easily, after the die sinking, also need the product of artificial method in with the mould to take out, it is comparatively loaded down with trivial details to operate equally, modern mould is at the in-process of pouring in addition, the molten material is when getting into the mould, take place the cooling easily, the molten material that leads to the pouring easily adheres to on pouring channel, not only cause the waste easily, cause the jam of pouring channel even, for this reason, we propose a novel injection mold.

Disclosure of Invention

The invention aims to provide a mold for injection molding, which solves the problems of longer processing time, complex operation and easy cooling of molten materials in a pouring channel of the modern injection mold.

In order to achieve the purpose, the invention provides the following technical scheme: a mold for injection molding comprises a base, wherein the middle part of the upper end of the base is fixedly connected with a lower mold, the middle part of the upper end of the lower mold is provided with a cavity, and a cooling water pipe is arranged inside the lower mold and outside the cavity; a first mounting seat is fixedly connected to the base at the right end of the lower die, a first groove is formed in the end face, facing the lower die, of the first mounting seat, and a threaded block is arranged in the first groove; a second mounting seat is fixedly connected to the base at the left end of the lower die, a second groove is formed in the end face, facing the base, of the second mounting seat, and a sliding block is arranged in the second groove; a lifting plate is fixedly connected between the sliding block and the thread block, a lifting seat is arranged at the lower end of the lifting plate, two bolts are in threaded connection with the left side and the right side of the lifting plate, and the lower ends of the bolts penetrate through the lifting plate and are in threaded connection with the lifting seat; the lower extreme middle part fixedly connected with of lift seat goes up the mould, and the through-hole has been seted up at the middle part of lift seat and last mould, communicates each other between the through-hole of lift seat and last mould, and the through-hole interpolation of lift seat and last mould is equipped with the runner cover.

As a further scheme of the invention: the condenser tube is the spiral winding setting on the lateral wall of die cavity, and condenser tube's upper end is connected with the inlet tube, and condenser tube's lower extreme is connected with the outlet pipe, and the lower mould is all worn out to the one end that condenser tube was kept away from to inlet tube and outlet pipe.

As a further scheme of the invention: l-shaped grooves are formed in the inner sides of the left end and the right end of the cavity, four positioning holes are evenly formed in the outer portion of the cavity at the upper end of the lower die, an L-shaped plate and a positioning rod are fixedly connected to the outer side of the lower end of the lifting seat, the L-shaped plate and the L-shaped grooves correspond to each other, and the positioning rods and the positioning holes correspond to each other.

As a further scheme of the invention: the threaded block is connected with a threaded rod in a threaded manner, the lower end of the threaded rod is connected with a rotating motor, and the top end of the threaded rod is rotatably connected with the side wall of the first groove through a bearing seat.

As a further scheme of the invention: the outer side sliding connection of the sliding block is smooth, the upper end and the lower end of the sliding rod are fixedly connected with the top surface and the bottom surface of the second groove, and the front side wall and the rear side wall of the sliding block are attached to the front inner side wall and the rear inner side wall of the second groove.

As a further scheme of the invention: the outer side of the sprue bush is provided with an asbestos heat insulation layer, the outer side of the upper end of the sprue bush is provided with a supporting sleeve, the supporting sleeve and the sprue bush are integrally formed, and the lower surface of the supporting sleeve is attached to the upper surface of the lifting seat.

As a further scheme of the invention: the upper end of the sprue bush is provided with a sprue gate, the sprue gate is of a conical structure with a large upper part and a small lower part, the lower end of the sprue gate is connected with a pouring channel, the pouring channel is of a conical structure with a large upper part and a small lower part, and an electric heating wire is arranged on the outer side of the pouring channel.

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

1. the device drives the threaded rod to rotate through the rotating motor, and the threaded block on the threaded rod is fixedly connected with the sliding block which is arranged on the sliding rod in a sliding manner through the lifting plate, so that the lifting plate is lifted, the upper die is driven to lift, the opening and closing between the upper die and the lower die are completed, the operation is simple, and the working efficiency is increased;

2. the device is provided with the L-shaped plate and the L-shaped groove, the L-shaped plate is embedded into the L-shaped groove in a die closing state, and a product in the die cavity can be separated by the L-shaped plate when the die is opened, so that the product can be directly taken out, and the working efficiency is further improved;

3. the device is provided with the sprue bush, the electric heating wire is arranged in the sprue bush, waste caused by cooling of the molten material on the inner wall of the pouring channel can be reduced, the pouring channel is prevented from being blocked, the pouring channel is of a structure with a small upper part and a large lower part, the speed of the molten material is reduced when the molten material flows into the pouring channel, the molten material can more uniformly enter the cavity for molding, the product quality is improved, and the sprue bush is supported by the support bush, so that the sprue bush is convenient to install and replace;

4. The outside of die cavity is provided with spiral condenser tube, through letting in cold water in to the inlet pipe, effectively reduces the shaping time of product in the die cavity, has further reduced process time, has improved work efficiency.

Drawings

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

FIG. 2 is a schematic structural diagram of a second mounting base according to the present invention;

FIG. 3 is a left side view of the first mount of the present invention;

FIG. 4 is a longitudinal cross-sectional view of the upper die, the lifting base and the sprue bushing of the present invention;

FIG. 5 is a schematic view of the overall construction of the sprue bushing and support sleeve of the present invention;

FIG. 6 is a schematic view of the structure of the L-shaped plate of the present invention;

FIG. 7 is a schematic view showing the structure of a cooling water pipe according to the present invention.

In the figure: 1. a second mounting seat; 2. a lifting plate; 3. a bolt; 4. a sprue bush; 5. a support sleeve; 6. a lifting seat; 7. positioning a rod; 8. an upper die; 9. positioning holes; 10. an L-shaped groove; 11. a water inlet pipe; 12. a cavity; 13. a first mounting seat; 14. a lower die; 15. an L-shaped plate; 16. a second groove; 17. a slide bar; 18. a slider; 19. a pouring gate; 20. an asbestos insulation layer; 21. an electric heating wire; 22. pouring a channel; 23. a base; 24. a cooling water pipe; 25. a water outlet pipe; 26. a first groove; 27. a threaded rod; 28. a thread block; 29. a rotating electric machine.

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.

Referring to fig. 1-7, a mold for injection molding comprises a base 23, a lower mold 14 is fixedly connected to the middle of the upper end of the base 23, a cavity 12 is formed in the middle of the upper end of the lower mold 14, L-shaped grooves 10 are formed in the inner sides of the left and right ends of the cavity 12, a cooling water pipe 24 is arranged inside the lower mold 14 outside the cavity 12, the cooling water pipe 24 is spirally wound on the outer side wall of the cavity 12, a water inlet pipe 11 is connected to the upper end of the cooling water pipe 24, a water outlet pipe 25 is connected to the lower end of the cooling, the water is added through the water inlet pipe 11, cooling water flows in the cooling water pipe 11 to cool the cavity, the cooling speed of a product is accelerated, the spiral cooling water pipe effectively prolongs a water channel and improves the cooling efficiency, one ends of the water inlet pipe 11 and the water outlet pipe 25, which are far away from the cooling water pipe 24, penetrate out of the lower die 14, and four positioning holes 9 are uniformly formed in the outer part of the cavity 12 at the upper end of the lower die 14;

A first mounting seat 13 is fixedly connected to the base 23 at the right end of the lower die 14, a first groove 26 is formed in the end face, facing the lower die 14, of the first mounting seat 13, a rotating motor 29 is fixedly mounted at the bottom of the first groove 26, a threaded rod 27 is fixedly connected to the output end of the upper end of the rotating motor 29, the top end of the threaded rod 27 is rotatably connected with the side wall of the first groove 26 through a bearing seat, and a threaded block 28 is connected to the threaded rod 27 in a threaded manner; a second mounting seat 1 is fixedly connected to the base 23 at the left end of the lower die 14, a second groove 16 is formed in the end face, facing the base 23, of the second mounting seat 1, a sliding rod 17 is fixedly connected between the top surface and the bottom surface of the second groove 16, and a sliding block 18 is slidably connected to the sliding rod 17;

a lifting plate 2 is fixedly connected between the sliding block 18 and the thread block 28, a lifting seat 6 is arranged at the lower end of the lifting plate 2, two bolts 3 are connected to the left side and the right side of the lifting plate 2 in a threaded manner, and the lower ends of the bolts 3 penetrate through the lifting plate 2 and are connected with the lifting seat 6 in a threaded manner; an upper die 8 is fixedly connected to the middle of the lower end of the lifting seat 6, an L-shaped plate 15 and a positioning rod 7 are fixedly connected to the outer side of the lower end of the lifting seat 6, the L-shaped plate 15 and the L-shaped groove 10 are arranged correspondingly, the positioning rod 7 and the positioning hole 9 are arranged correspondingly, and the positioning rod 7 and the positioning hole 9 play a role in positioning, so that the accuracy of pouring is guaranteed;

The middle parts of the lifting seat 6 and the upper die 8 are provided with through holes, the through holes of the lifting seat 6 and the upper die 8 are communicated with each other, the through holes of the lifting seat 6 and the upper die 8 are internally inserted with a sprue bush 4, the outer side of the sprue bush 4 is provided with an asbestos heat-insulating layer 20, the outer side of the upper end of the sprue bush 4 is provided with a support bush 5, the support bush 5 and the sprue bush 4 are integrally formed, the support bush 5 can support the sprue bush 4, the replacement is very convenient, and the lower surface of the support bush 5 is mutually attached to the upper surface of the lifting seat 6; the upper end of runner cover 4 is provided with sprue gate 19, sprue gate 19 is big-end-up's toper structure, can prevent to pour into a mould when too much, the molten material spills over from sprue gate 19 fast, sprue gate 19's lower extreme is connected with pouring channel 22, pouring channel 22 is big-end-up's toper structure, make in the molten material can be more slowly even flows into the die cavity 12 of lower mould 14, the quality of product is improved, pouring channel 22's the outside is provided with electric heating wire 21.

The invention has the structural characteristics and the working principle that: when the device works, the rotating motor 29 is started, the rotating motor 29 drives the threaded rod 27 to rotate, the threaded rod 27 is in threaded connection with the threaded block 28, the threaded block 28 is fixedly connected with the sliding block 18 through the lifting plate 2, the sliding block 18 is slidably sleeved on the sliding rod 17 in the second groove 16, the sliding block 18, the lifting plate 2 and the sliding rod 17 are matched with each other to limit the threaded block 28, the threaded block 28 is prevented from rotating, the threaded block 28 moves up and down on the threaded rod 27, the lifting plate 2 keeps stable when moving up and down, the lifting seat 6 is driven to lift through the lifting plate 2, so that mold closing is completed, the L-shaped plate 15 is inserted into the L-shaped groove 10 when injection molding is needed, the sprue bush 4 is inserted into through holes of the lifting seat 6 and the upper mold 8, pouring is performed through the sprue gate 19, the electric heating wire 21 can heat a downflow molten material, and the molten material is effectively, reduce extravagantly, prevent that pouring channel 22 from taking place to block up, when taking out the product, through lifter plate 2 upward movement for go up mutual separation between mould 8 and the lower mould 14, go up mould 8 and lower mould 14 at the in-process of separation, L shaped plate 15 drags the product from the lower extreme and directly takes out, and is very convenient.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A mold for injection molding comprises a base (23), and is characterized in that the middle of the upper end of the base (23) is fixedly connected with a lower mold (14), the middle of the upper end of the lower mold (14) is provided with a cavity (12), and the outer side of the cavity (12) is provided with a cooling water pipe (24) inside the lower mold (14); a first mounting seat (13) is fixedly connected to the right end of the lower die (14) on the base (23), a first groove (26) is formed in the end face, facing the lower die (14), of the first mounting seat (13), and a thread block (28) is arranged in the first groove (26); a second mounting seat (1) is fixedly connected to the base (23) at the left end of the lower die (14), a second groove (16) is formed in the end face, facing the base (23), of the second mounting seat (1), and a sliding block (18) is arranged in the second groove (16); a lifting plate (2) is fixedly connected between the sliding block (18) and the thread block (28), a lifting seat (6) is arranged at the lower end of the lifting plate (2), two bolts (3) are in threaded connection with the left side and the right side of the lifting plate (2), and the lower ends of the bolts (3) penetrate through the lifting plate (2) and are in threaded connection with the lifting seat (6); go up mould (8) in the lower extreme middle part fixedly connected with of lift seat (6), the through-hole has been seted up at the middle part of lift seat (6) and last mould (8), communicates each other between the through-hole of lift seat (6) and last mould (8), and the through-hole interpolation of lift seat (6) and last mould (8) is equipped with runner cover (4).

2. The mold for injection molding according to claim 1, wherein the cooling water pipe (24) is spirally wound on the outer side wall of the cavity (12), the upper end of the cooling water pipe (24) is connected with a water inlet pipe (11), the lower end of the cooling water pipe (24) is connected with a water outlet pipe (25), and the ends of the water inlet pipe (11) and the water outlet pipe (25) far away from the cooling water pipe (24) penetrate out of the lower mold (14).

3. The mold for injection molding according to claim 1, wherein the cavity (12) is provided with L-shaped grooves (10) at the inner sides of the left and right ends, the upper end of the lower mold (14) is uniformly provided with four positioning holes (9) at the outer part of the cavity (12), the outer side of the lower end of the lifting seat (6) is fixedly connected with an L-shaped plate (15) and a positioning rod (7), the L-shaped plate (15) and the L-shaped grooves (10) are arranged correspondingly, and the positioning rod (7) and the positioning holes (9) are arranged correspondingly.

4. A mold as claimed in claim 1, wherein the threaded block (28) is threadedly connected with a threaded rod (27), the lower end of the threaded rod (27) is connected with a rotating motor (29), and the top end of the threaded rod (27) is rotatably connected with the side wall of the first groove (26) through a bearing seat.

5. A mold for injection molding according to claim 1, wherein a slide bar (17) is slidably connected to an outer side of the slide block (18), upper and lower ends of the slide bar (17) are fixedly connected to a top surface and a bottom surface of the second groove (16), and front and rear side walls of the slide block (18) are attached to front and rear inner side walls of the second groove (16).

6. A mold for injection molding according to claim 1, wherein an asbestos heat-insulating layer (20) is provided outside the sprue bush (4), a support bush (5) is provided outside the upper end of the sprue bush (4), the support bush (5) and the sprue bush (4) are integrally formed, and the lower surface of the support bush (5) and the upper surface of the lifting seat (6) are attached to each other.

7. A mold for injection molding according to claim 6, characterized in that the upper end of the sprue bush (4) is provided with a sprue gate (19), the sprue gate (19) has a tapered structure with a large top and a small bottom, the lower end of the sprue gate (19) is connected with a pouring channel (22), the pouring channel (22) has a tapered structure with a small top and a large bottom, and the outer side of the pouring channel (22) is provided with an electric heating wire (21).