Precise injection molding constant-temperature mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a precise injection molding constant-temperature mold which comprises a supporting base, a lower injection molding mold is arranged on the supporting base, an injection molding cavity is formed in the middle of the lower injection molding mold, and a mold rapid cooling assembly used for rapidly cooling a forming mold is arranged on the lower injection molding mold. The side edge of the injection molding cavity is provided with the mold rapid cooling assembly, the side edge heat conduction plate and the bottom heat conduction plate in the mold rapid cooling assembly are connected with the side wall of the injection molding cavity, the side edge cooling pipe is arranged on the side edge of the side edge heat conduction plate in an attached mode, and the bottom cooling pipe is arranged on the side edge of the bottom heat conduction plate in an attached mode. And then the heat is conveyed into the side edge cooling pipe and the bottom cooling pipe through the pump machine, so that heat transferred from the side edge heat conduction plate and the bottom heat conduction plate can be continuously and circularly taken away, the cooling efficiency of products in the injection molding cavity is greatly improved, and cooling use of a user is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a precision injection constant temperature mold. Background Art

[0002] An injection mold is a tool for producing plastic products. Its advantages are high production speed, high efficiency, automated operation, a variety of flower patterns and colors, the shape can range from simple to complex, the size can range from large to small, and the product size is precise, the product is easy to update, and it can form parts with complex shapes. The injection mold is suitable for mass production and forming processing fields of products with complex shapes.

[0003] After retrieval, a Chinese patent with the authorized announcement number of CN 215791435 U, a constant temperature precision injection mold, relates to the technical field of injection molds, including a housing, an injection groove, electric push rods, and a buffer assembly. An injection groove is opened on the inner wall of the bottom of the housing, two electric push rods are fixedly installed on the inner wall of the top of the housing, the bottom of the electric push rod is fixedly connected to the upper mold, limiting grooves are opened on the inner walls of both sides of the housing, a water storage cavity is opened inside the housing, and a buffer assembly is arranged between the upper mold and the limiting groove for buffering the upper mold. Through the cooperation of the moving plate, pressing block, pressing plate and spring, this mold can play a buffering role. Through the cooperation of the heater, heating rod, water pump and conduit, the injection groove can be heated and kept at a constant temperature.

[0004] There are still certain deficiencies in the injection mold in the above patent. When the existing precision injection constant temperature mold cools the forming mold cavity, it often uses water cooling. However, the water flow used for cooling often cannot be discharged and cooled in time. As a result, after the cooling water flow absorbs the heat of the mold cavity, a certain amount of heat is stored in the cooling water flow, and then the mold cavity cannot be continuously cooled quickly, which is inconvenient for users. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a precision injection constant temperature mold, which solves the problem that when the existing precision injection constant temperature mold cools the forming mold cavity, it often uses water cooling, but the water flow used for cooling often cannot be discharged and cooled in time. As a result, after the cooling water flow absorbs the heat of the mold cavity, a certain amount of heat is stored in the cooling water flow, and then the mold cavity cannot be continuously cooled quickly, which is inconvenient for users.

[0006] The utility model provides the following technical solutions: a precision injection molding constant temperature mold, including a support base, an injection molding lower mold is arranged on the support base, an injection molding cavity is arranged in the middle of the injection molding lower mold, an injection molding upper mold is arranged above the injection molding lower mold, the injection molding upper mold and the injection molding lower mold are connected by four uniformly arranged limit insertion rods, a mold rapid cooling assembly for rapidly cooling the molding mold is arranged on the injection molding lower mold, a bottom connection frame is connected to the bottom end of the support base, a fan is installed on the bottom connection frame, and a plurality of heat dissipation openings are symmetrically arranged on both sides of the support base;

[0007] The mold rapid cooling assembly includes a bottom cavity opened at the bottom of the injection molding cavity, a bottom heat conducting plate is arranged between the bottom cavity and the side wall of the injection molding cavity, a plurality of bottom cooling pipes are uniformly arranged at the bottom of the bottom heat conducting plate, two side cavities are symmetrically arranged on both sides of the injection molding cavity, a side heat conducting plate is arranged between the side cavity and the side wall of the injection molding cavity, a plurality of side cooling pipes are uniformly arranged on the side wall of the side heat conducting plate, a first connecting pipe is communicated with the side of the side cooling pipe, a second connecting pipe is arranged below the bottom cooling pipe, one end of the bottom cooling pipe is connected with the second connecting pipe through a third connecting pipe arranged, the first connecting pipe is connected with the second connecting pipe, the other end of the second connecting pipe is communicated with a diversion transmission pipe, and the end of the second connecting pipe is also connected with the bottom end of the side cooling pipe through a fourth connecting pipe arranged. A water pipe installation groove is opened at the bottom end of the support base, and a cooling water pipe is arranged around the inner ring of the water pipe installation groove.

[0008] Preferred technical solution one: the bottom end of the diversion transmission pipe is communicated with the cooling water pipe, and a pump is arranged on the outer side of the support base.

[0009] Preferred technical solution two: the end of the cooling water pipe is communicated with the input end of the pump, and the output end of the pump is communicated with the second connecting pipe through a water flow conveying pipe arranged.

[0010] Preferred technical solution three: the side surface of the side cooling pipe is attached to the side heat conducting plate, and the side surface of the bottom cooling pipe is attached to the bottom heat conducting plate.

[0011] This solution can enable the heat generated by the injection mold processed in the injection molding cavity to be rapidly transferred away through the side cooling pipes and the bottom cooling pipes after being transferred to the side heat conducting plate and the bottom heat conducting plate, achieving an effective cooling effect.

[0012] Preferred technical solution four: a plurality of connecting sleeves are arranged on the pipe body of the cooling water pipe, and the sleeves are fixedly connected with the inside of the water pipe installation groove.

[0013] This solution can make the cooling water pipe be installed more stably inside.

[0014] Preferred technical solution five: The bottom end of the pump is connected to the side of the support base through the provided connecting plate.

[0015] This solution can make the pump more stable when pumping and sucking the cooling water flow in the cooling water pipe.

[0016] Compared with the prior art, the present utility model provides a precision injection molding constant temperature mold, which has the following beneficial effects:

[0017] (1) In the present utility model, a mold rapid cooling component is provided on the side of the injection molding cavity. Among them, the side heat conducting plate and the bottom heat conducting plate in the mold rapid cooling component are connected to the side wall of the injection molding cavity. A side cooling pipe is attached to the side of the side heat conducting plate, and a bottom cooling pipe is attached to the side of the bottom heat conducting plate. The cooling water flowing in the bottom cooling pipe and the side cooling pipe can circulate under the suction of the pump. When the water flow containing heat enters the inside of the cooling water pipe, the water flow containing heat inside the cooling water pipe will be cooled by the wind blown by the fan, and then be transported to the side cooling pipe and the bottom cooling pipe by the pump, so as to continuously circulate and take away the heat transferred from the side heat conducting plate and the bottom heat conducting plate, greatly improving the cooling efficiency of the product in the injection molding cavity and being more convenient for the user to cool and use. Description of the Drawings

[0018] Figure 1 is the main view structural schematic diagram of the present utility model;

[0019] Figure 2 is the main view sectional structural schematic diagram of the present utility model;

[0020] Figure 3 is of the present utility model Figure 2 structural enlarged view of the bottom cavity in;

[0021] Figure 4 is of the present utility model Figure 2 structural enlarged view of the heat dissipation port in.

[0022] In the figure:

[0023] 1. Support base; 2. Injection molding lower mold; 3. Injection molding cavity; 4. Injection molding upper mold; 5. Limit insertion rod; 6. Mold rapid cooling component; 7. Bottom connecting frame; 8. Fan; 9. Heat dissipation port;

[0024] 601. Bottom cavity; 602. Bottom heat conducting plate; 603. Bottom cooling pipe; 604. Side cavity; 605. Side heat conducting plate; 606. Side cooling pipe; 607. First connecting pipe; 608. Second connecting pipe; 609. Third connecting pipe; 610. Diversion transmission pipe; 611. Fourth connecting pipe; 612. Cooling water pipe; 613. Pump; 614. Water flow conveying pipe; 615. Water pipe installation groove. Detailed implementation mode

[0025] Please refer to Figures 1-4

[0026] Example 1: A precision injection molding constant temperature mold, including a support base 1, an injection molding lower mold 2 is arranged on the support base 1, an injection molding cavity 3 is arranged in the middle of the injection molding lower mold 2, an injection molding upper mold 4 is arranged above the injection molding lower mold 2, the injection molding upper mold 4 and the injection molding lower mold 2 are connected by four uniformly arranged limit insertion rods 5, and a mold rapid cooling assembly 6 for rapidly cooling the molding mold is arranged on the injection molding lower mold 2. The bottom of the support base 1 is connected with a bottom connecting frame 7, a fan 8 is installed on the bottom connecting frame 7, and a plurality of heat dissipation openings 9 are symmetrically arranged on both sides of the support base 1.

[0027] The mold rapid cooling assembly 6 includes a bottom cavity 601 opened at the bottom of the injection molding cavity 3. A bottom heat conducting plate 602 is arranged between the bottom cavity 601 and the side wall of the injection molding cavity 3. A plurality of bottom cooling pipes 603 are uniformly arranged at the bottom of the bottom heat conducting plate 602. Two side cavities 604 are symmetrically arranged on both sides of the injection molding cavity 3. A side heat conducting plate 605 is arranged between the side cavity 604 and the side wall of the injection molding cavity 3. A plurality of side cooling pipes 606 are uniformly arranged on the side wall of the side heat conducting plate 605. The side of the side cooling pipe 606 is communicated with a first connecting pipe 607. A second connecting pipe 608 is arranged below the bottom cooling pipe 603. One end of the bottom cooling pipe 603 is connected with the second connecting pipe 608 through a third connecting pipe 609 arranged. The first connecting pipe 607 is connected with the second connecting pipe 608, and the other end of the second connecting pipe 608 is communicated with a diversion transmission pipe 610.

[0028] The end of the second connecting pipe 608 is also connected with the bottom end of the side cooling pipe 606 through a fourth connecting pipe 611 arranged. A water pipe installation groove 615 is opened at the bottom end of the support base 1. A cooling water pipe 612 is arranged inside the water pipe installation groove 615. The bottom end of the diversion transmission pipe 610 is connected with the cooling water pipe 612. A pump 613 is arranged on the outside of the support base 1. The end of the cooling water pipe 612 is connected with the input end of the pump 613. The output end of the pump 613 is connected with the second connecting pipe 608 through a water flow conveying pipe 614 arranged.

[0029] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the side surface of the side cooling pipe 606 is in contact with the side heat conducting plate 605, and the side surface of the bottom cooling pipe 603 is in contact with the bottom heat conducting plate 602.

[0030] After the heat generated by the injection mold processed in the injection cavity 3 is transferred to the side heat conducting plate 605 and the bottom heat conducting plate 602, it can be quickly transferred away through the side cooling pipe 606 and the bottom cooling pipe 603, achieving an effective cooling effect.

[0031] Embodiment 3: The difference between this embodiment and Embodiment 1 is that a number of connecting ferrules are provided on the pipe body of the cooling water pipe 612, and the ferrules are fixedly connected to the inside of the water pipe installation groove 615.

[0032] The cooling water pipe 612 is installed more stably in the water pipe installation groove 615.

[0033] Embodiment 4: The difference between this embodiment and Embodiment 1 is that the bottom end of the pump 613 is connected to the side of the support base 1 through a set connecting plate.

[0034] The pump 613 is more stable when pumping and sucking the cooling water flow in the cooling water pipe 612.

[0035] In this embodiment, since the existing precision injection constant temperature mold often uses water cooling to cool the forming die cavity during cooling, but the water flow used for cooling often cannot be discharged and cooled in time. As a result, after the cooling water flow absorbs the heat of the die cavity, a certain amount of heat is stored in the cooling water flow, and then the die cavity cannot be continuously cooled quickly, which is inconvenient for users.

[0036] In summary, during specific implementation, when the user produces an injection mold through the injection lower mold 2 and the injection upper mold 4, the injection-molded mold will remain in the injection cavity 3, and a certain amount of heat will be stored inside the mold after molding. The user evenly arranges a side cavity 604 on the side of the injection cavity 3 and a bottom cavity 601 at the bottom of the injection cavity 3. The side of the side heat conducting plate 605 is evenly attached with side cooling pipes 606, and the side of the bottom heat conducting plate 602 is evenly attached with bottom cooling pipes 603, and the side cooling pipes 606 and the bottom cooling pipes 603 are filled with cold water for cooling.

[0037] The user can start the pump 613 and the fan 8, and the pump 613 pumps and circulates the water flow that absorbs heat in the second connecting pipe 608 connected to the cooling water pipe 612 and the diversion transmission pipe 610. When the water flow containing heat is pumped to the cooling water pipe 612 and flows, the airflow generated by the start of the fan 8 will blow and cool the cooling water pipe 612, and then quickly cool the water flow containing heat in the cooling water pipe 612.

[0038] Thus, the water flow conveyed to the water flow conveying pipe 614 by the pump 613 is colder. The end of the water flow conveying pipe 614 is connected to the second communication pipe 608 and the first communication pipe 607, and then enters the side cooling pipe 606 and the bottom cooling pipe 603 again, so that the heat transferred from the side heat conducting plate 605 and the bottom heat conducting plate 602 can be continuously circulated away, greatly improving the cooling efficiency of the product in the injection mold cavity 3 and making it more convenient for the user to use for cooling.

Claims

1. A precision injection molding thermostatic mold, comprising a support base (1), characterized in that: The support base (1) is provided with an injection lower mold (2), the middle part of the injection lower mold (2) is provided with an injection mold cavity (3), an injection upper mold (4) is provided above the injection lower mold (2), the injection upper mold (4) is connected to the injection lower mold (2) by four uniformly arranged limit rods (5), the injection lower mold (2) is provided with a mold rapid cooling assembly (6) for rapid cooling of the molding mold, the bottom end of the support base (1) is connected with a bottom connecting frame (7), a fan (8) is installed on the bottom connecting frame (7), and a plurality of heat dissipation ports (9) are symmetrically provided on both sides of the support base (1); The mold rapid cooling component (6) comprises a bottom cavity (601) opened at the bottom of the injection cavity (3), a bottom heat conduction plate (602) is arranged between the bottom cavity (601) and the side wall of the injection cavity (3), a plurality of bottom cooling tubes (603) are evenly arranged at the bottom of the bottom heat conduction plate (602), two side cavities (604) are symmetrically arranged on both sides of the injection cavity (3), a side heat conduction plate (605) is arranged between the side cavity (604) and the side wall of the injection cavity (3), a plurality of side cooling tubes (606) are evenly arranged on the side wall of the side heat conduction plate (605), and the side of the side cooling tube (606) is connected to a first connecting tube (603). 07), a second connecting pipe (608) is arranged below the bottom cooling pipe (603), one end of the bottom cooling pipe (603) is connected to the second connecting pipe (608) through a third connecting pipe (609), the first connecting pipe (607) is connected to the second connecting pipe (608), the other end of the second connecting pipe (608) is connected to a guide transmission pipe (610), the end of the second connecting pipe (608) is also connected to the bottom end of the side cooling pipe (606) through a fourth connecting pipe (611), and a water pipe installation groove (615) is provided at the bottom end of the support base (1), and a cooling water pipe (612) is arranged in the inner ring of the water pipe installation groove (615).

2. The precision injection constant temperature mold according to claim 1, characterized in that: The bottom end of the diversion transmission pipe (610) is connected to the cooling water pipe (612), and a pump (613) is arranged on the outside of the support base (1).

3. The precision injection molding constant temperature mold according to claim 2, characterized in that: The end of the cooling water pipe (612) is connected to the input end of the pump (613), and the output end of the pump (613) is connected to the second connecting pipe (608) via a water delivery pipe (614).

4. The precision injection constant temperature mold according to claim 3, characterized in that: The side surface of the side cooling tube (606) is in contact with the side heat conduction plate (605), and the side surface of the bottom cooling tube (603) is in contact with the bottom heat conduction plate (602).

5. The precision injection constant temperature mold according to claim 4, characterized in that: A plurality of connecting sleeves are provided on the pipe body of the cooling water pipe (612), and the sleeves are fixedly connected to the inside of the water pipe installation groove (615).

6. The precision injection molding constant temperature mold according to claim 5, characterized in that: The bottom end of the pump (613) is connected to the side of the support base (1) via a connecting plate.

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