CN221048930U

CN221048930U - Double-colored injection mold

Info

Publication number: CN221048930U
Application number: CN202322755393.4U
Authority: CN
Inventors: 张志宇; 张晓东; 师清晶
Original assignee: Shenyang Baite Shangen Mould Co ltd
Current assignee: Shenyang Baite Shangen Mould Co ltd
Priority date: 2023-10-14
Filing date: 2023-10-14
Publication date: 2024-05-31
Anticipated expiration: 2033-10-14

Abstract

The utility model discloses a double-color injection mold, which belongs to the technical field of injection molds and comprises a mounting seat, wherein a plurality of first electric push rods are fixedly arranged at the top of the mounting seat, the top ends of the plurality of first electric push rods are fixedly connected with a lower mold, and a plurality of second electric push rods are fixedly connected with the top of the mounting seat. In the utility model, after molten plastics are injected into the cavities of the lower die and the upper die, circulating water is injected into the heat exchange copper pipe to cool the molten plastics, so that the molding solidification speed is accelerated, and when a molded product is taken out, the lower die is driven to move downwards by using the first electric push rod, the upper die is driven to move upwards by using the second electric push rod, the product in the cavity of the lower die is ejected by the lower ejector block, and the product in the cavity of the upper die is ejected by the upper top plate, so that the molded product is fed, and the practicability is good.

Description

Double-colored injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to a double-color injection mold.

Background

The double-shot injection mold is a mold which can inject two plastic materials on the same injection molding machine and mold the two plastic materials in different injection molding cavities for two times, and the product is only taken out once, and the product injected by the double-shot injection mold is composed of two materials with different colors or different hardness, so that the double-shot injection mold has higher aesthetic property and assemblability.

Through retrieval, the utility model patent with the bulletin number of CN213500578U discloses a double-shot injection mold, which comprises a mounting seat, a first template and a second template, wherein the first template and the second template are positioned above the mounting seat, the first template is positioned above the second template, a supporting plate is fixedly connected above the mounting seat, a first mounting cavity and a second mounting cavity are formed in four corners inside the mounting seat, the second mounting cavity is positioned at the inner side of the first mounting cavity, a motor is mounted on the bottom surface of the inner wall of the first mounting cavity, an electric push rod is mounted on the bottom surface of the second inner wall of the mounting cavity, a lower plate is fixedly connected below the second template, a supporting rod is fixedly connected below the lower plate, the lower end of the supporting rod penetrates through the supporting plate and is fixedly connected with a power output end of the electric push rod, an upper plate is fixedly connected with a motor shaft in a rotating manner, and the upper end of the motor shaft is fixedly connected with a screw rod; the die is convenient to open, saves labor, and avoids the trouble of manually separating the die. However, the above patent has the following disadvantages: the plastic injected into the template needs cooling to be solidified and formed, but the natural cooling speed is slower; and the separation of the first template and the second template is used for blanking, but the formed product is inconvenient to take out from the first template or the second template. For this purpose we propose a two-shot injection mold.

Disclosure of utility model

Aiming at the problems in the prior art, the utility model aims to provide a double-color injection mold.

In order to solve the problems, the utility model adopts the following technical scheme:

The utility model provides a double-colored injection mold, includes the mount pad, the top fixed mounting of mount pad has a plurality of first electric putter, and is a plurality of the equal fixedly connected with bed die in top of first electric putter, the equal fixedly connected with in top of mount pad a plurality of second electric putter, a plurality of the equal fixedly connected with in top of second electric putter goes up the mould, the inside of bed die and last mould all overlaps and is equipped with heat exchange copper pipe, two heat exchange copper pipe's both ends extend to the outside of bed die and last mould respectively, the top surface fixedly connected with a plurality of stands of mount pad, the top fixedly connected with footstock of stand, the top of mount pad is provided with ejection mechanism down, the bottom of footstock is provided with ejection mechanism, the top of going up the mould die cavity is provided with the ladder hole, the bottom of bed die is provided with down the ladder hole.

As a preferable scheme of the utility model, the lower ejection mechanism comprises a lower ejector rod fixedly connected to the top surface of the mounting seat, and the top end of the lower ejector rod is movably sleeved to the inner cavity of the lower stepped hole and is fixedly connected with a lower ejector block.

As a preferable scheme of the utility model, the upper ejection mechanism comprises an upper ejector rod fixedly connected to the bottom surface of the ejector seat, and the bottom end of the upper ejector rod is movably sleeved in the inner cavity of the upper stepped hole and is fixedly connected with an upper top plate.

As a preferable scheme of the utility model, the top of the upper die is provided with a first feeding port, and the top of the upper die is provided with a second feeding port.

As a preferable scheme of the utility model, the side surface of the lower top block is attached to the inner wall of the lower stepped hole, and the top surface of the lower top block is flush with the bottom surface of the lower die cavity.

As a preferable scheme of the utility model, the side surface of the upper top plate is attached to the inner wall of the upper stepped hole, and the bottom surface of the upper top plate is flush with the top surface of the upper die cavity.

Compared with the prior art, the utility model has the advantages that:

In the utility model, after molten plastics are injected into the cavities of the lower die and the upper die, circulating water is injected into the heat exchange copper pipe to cool the molten plastics, thereby accelerating the molding solidification speed; and when taking out the fashioned product, utilize first electric putter to drive the bed die and move down, utilize the second electric putter to drive the mould and move up, push out the product in the bed die cavity through lower kicking block, push out the product in the bed die cavity through last roof to realize carrying out the unloading to the fashioned product, improved the practicality.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic cross-sectional view of a lower mold of the present utility model;

fig. 4 is a view of a heat exchange copper tube of the present utility model.

The reference numerals in the figures illustrate:

1. A mounting base; 2. a first electric push rod; 3. a lower die; 4. a second electric push rod; 5. an upper die; 6. a heat exchange copper pipe; 7. a column; 8. a top base; 9. a lower ejection mechanism; 10. an upper ejection mechanism; 11. a first feed inlet; 12. a second feed inlet; 13. a lower stepped hole; 14. an upper stepped hole; 15. a lower ejector rod; 16. a lower top block; 17. an upper ejector rod; 18. and (5) an upper top plate.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

Referring to fig. 1-4, a dual-color injection mold comprises a mounting seat 1, a plurality of first electric push rods 2 are fixedly mounted at the top of the mounting seat 1, a lower mold 3 is fixedly connected to the top of the plurality of first electric push rods 2, a plurality of second electric push rods 4 are fixedly connected to the top of the mounting seat 1, an upper mold 5 is fixedly connected to the top of the plurality of second electric push rods 4, heat exchange copper pipes 6 are respectively sleeved in the lower mold 3 and the upper mold 5, two ends of the two heat exchange copper pipes 6 respectively extend to the outer parts of the lower mold 3 and the upper mold 5, a plurality of stand columns 7 are fixedly connected to the top surface of the mounting seat 1, a top seat 8 is fixedly connected to the top of the stand columns 7, a lower ejection mechanism 9 is arranged at the top of the top seat 8, an upper ejection mechanism 10 is arranged at the top of a cavity of the upper mold 5, and a lower stepped hole 13 is arranged at the bottom of a cavity of the lower mold 3.

In this embodiment, the end of the heat exchange copper tube 6 is connected with an external water tube, so that cooling water flows in the heat exchange copper tube 6 to cool the injection products in the lower mold 3 and the upper mold 5.

Specifically, referring to fig. 1 to 3, the lower ejection mechanism 9 includes a lower ejector rod 15 fixedly connected to the top surface of the mounting seat 1, and a lower ejector block 16 fixedly connected to the top end of the lower ejector rod 15 is movably sleeved to the inner cavity of the lower stepped hole 13.

In this embodiment, when the lower mold 3 moves downward, the positions of the lower ejector rod 15 and the lower ejector block 16 remain unchanged, so that the lower ejector block 16 and the lower mold 3 move relatively, and the product located in the cavity of the lower mold 3 is ejected by the lower ejector block 16.

Specifically, referring to fig. 1 to 3, the upper ejection mechanism 10 includes an upper ejector rod 17 fixedly connected to the bottom surface of the ejector seat 8, and the bottom end of the upper ejector rod 17 is movably sleeved on the inner cavity of the upper stepped hole 14 and is fixedly connected with an upper top plate 18.

In this embodiment, when the upper mold 5 moves upward, the positions of the upper ejector rod 17 and the upper top plate 18 remain unchanged, so that the upper top plate 18 and the upper mold 5 move relatively, and the upper top plate 18 is used to eject the product located in the cavity of the upper mold 5.

Specifically, referring to fig. 2, a first feeding port 11 is formed at the top of the upper mold 5, and a second feeding port 12 is formed at the top of the upper mold 5.

In this embodiment, molten plastics of different colors are injected into the cavities of the lower mold 3 and the upper mold 5 through the first feed port 11 and the second feed port 12.

Specifically, referring to fig. 2 and 3, the side surface of the lower top block 16 is attached to the inner wall of the lower stepped hole 13, and the top surface of the lower top block 16 is flush with the bottom surface of the cavity of the lower mold 3.

In this embodiment, the overflow of molten plastic from the lower stepped hole 13 is avoided, and the complete smoothness of the cavity of the second electric push rod 4 is ensured.

Specifically, referring to fig. 2 and 3, the side surface of the upper top plate 18 is attached to the inner wall of the upper stepped hole 14, and the bottom surface of the upper top plate 18 is flush with the top surface of the cavity of the upper mold 5.

In this embodiment, the overflow of molten plastic from the upper stepped hole 14 is avoided, and further, the complete smoothness of the cavity of the upper mold 5 is ensured.

Working principle: when the die is used, the first electric push rod 2 is utilized to drive the lower die 3 to move upwards, the second electric push rod 4 is utilized to drive the upper die 5 to move downwards, the top surface of the lower die 3 is attached to the bottom surface of the upper die 5, the top surface of the lower ejector block 16 is flush with the bottom of the inner cavity of the lower die 3, the top surface of the inner cavity of the upper die 5 is flush with the bottom surface of the upper top plate 18, then different molten plastics are respectively injected into the cavities of the lower die 3 and the upper die 5 from the first feeding opening 11 and the second feeding opening 12, at the moment, external cooling water is introduced into the heat exchange copper pipe 6 to flow, the cooling water in the heat exchange copper pipe 6 is utilized to exchange heat with the lower die 3 and the upper die 5, so that the lower die 3 and the upper die 5 are cooled, molten plastics in the cavities of the lower die 3 and the upper die 5 are cooled, the lower die 3 is driven to move downwards by the first electric push rod 2, the upper die 5 is utilized to move upwards, at the moment, the products in the lower die 3 are ejected out of the upper die 5 by the lower ejector block 16, and the top plate 18 is ejected out of the upper die 5, and the products in the cavities are formed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution and the modified concept thereof, within the scope of the present utility model.

Claims

1. Double-colored injection mold, including mount pad (1), its characterized in that: the top fixed mounting of mount pad (1) has a plurality of first electric putter (2), and is a plurality of the equal fixedly connected with bed die (3) in top of first electric putter (2), the top fixedly connected with of mount pad (1) a plurality of second electric putter (4), a plurality of the equal fixedly connected with in top of second electric putter (4) goes up mould (5), the inside of bed die (3) and last mould (5) all overlaps and is equipped with heat exchange copper pipe (6), two the both ends of heat exchange copper pipe (6) extend to the outside of bed die (3) and last mould (5) respectively, the top surface fixedly connected with a plurality of stand (7) of mount pad (1), the top fixedly connected with footstock (8) of stand (7), the top of mount pad (1) is provided with ejection mechanism (9), the bottom of footstock (8) is provided with ejection mechanism (10), the top of going up mould (5) die cavity is provided with step (14), the bottom of footstep (3) is provided with die cavity (13).

2. The two-shot injection mold of claim 1, wherein: the lower ejection mechanism (9) comprises a lower ejector rod (15) fixedly connected to the top surface of the mounting seat (1), and the top end of the lower ejector rod (15) is movably sleeved to the inner cavity of the lower stepped hole (13) and fixedly connected with a lower ejector block (16).

3. The two-shot injection mold of claim 1, wherein: the upper ejection mechanism (10) comprises an upper ejector rod (17) fixedly connected to the bottom surface of the ejector seat (8), and the bottom end of the upper ejector rod (17) is movably sleeved into the inner cavity of the upper stepped hole (14) and fixedly connected with an upper top plate (18).

4. The two-shot injection mold of claim 1, wherein: the top of the upper die (5) is provided with a first feeding hole (11), and the top of the upper die (5) is provided with a second feeding hole (12).

5. A two-shot injection mold according to claim 2, wherein: the side face of the lower jacking block (16) is attached to the inner wall of the lower stepped hole (13), and the top face of the lower jacking block (16) is flush with the bottom face of the cavity of the lower die (3).

6. A two-shot injection mold according to claim 3, wherein: the side face of the upper top plate (18) is attached to the inner wall of the upper stepped hole (14), and the bottom face of the upper top plate (18) is flush with the top face of the cavity of the upper die (5).