Injection mold facilitating cooling of the molded part

Abstract

The application discloses an injection mold convenient for cooling and shaping, and belongs to the technical field of injection molds. The technical scheme points of the injection mold comprise an upper mold and a lower mold. The top of the upper mold is provided with a pouring opening. The inside of the lower mold is provided with a shaping block. The inside of the shaping block is provided with a cooling channel. The cross section of the cooling channel is in the shape of a character. The bottom of the cooling channel is provided with a liquid discharge pipe. The inside of the shaping block is provided with a mounting hole. The inner wall of the mounting hole is provided with a liquid inlet pipe. The liquid outlet of the liquid inlet pipe is located at the top of the shaping block. The top inner wall of the cooling channel is provided with a cooling plate. The top of the cooling plate is provided with a plurality of equidistantly distributed heat conduction rods. The top of the heat conduction rod is provided with a heat conduction sheet. The heat conduction sheet is located in the mold cavity of the mold. The application can conveniently take away the heat of the injection liquid, and improves the cooling and shaping efficiency of the injection liquid.

Description

Technical Field

[0001] This application belongs to the field of injection mold technology, and more specifically it relates to an injection mold that is easy to cool and solidify. Background Technology

[0002] A humidifier is a household appliance that increases the humidity in a room. Humidifiers can humidify a specific room or be connected to a boiler or central air conditioning system to humidify an entire building. In the humidifier manufacturing process, injection molds are used to mold the humidifier cover.

[0003] Currently, Chinese patent CN222245859U discloses an injection mold for processing the shell of a humidifier, including an upper mold and a lower mold. The top of the upper mold is fixedly provided with a top plate, and the top plate is fixedly provided with a pouring gate. Connecting blocks are provided at the four corners between the upper mold and the lower mold. Positioning posts are fixedly provided at the top and bottom of the connecting blocks. A splicing limiting mechanism is provided on the side of the connecting blocks. The splicing limiting mechanism includes two sets of square connecting blocks. Several splicing blocks are fixedly provided on each of the two square connecting blocks. Insertion blocks are provided on the inner side of the splicing blocks. Two connecting blocks are fixedly connected at both ends of the insertion blocks. The splicing blocks and the insertion blocks are fastened together by screws.

[0004] In existing technologies, similar injection molds rely solely on natural cooling after injection to allow the injection liquid to cool and solidify. This solidification process takes a considerable amount of time, affecting the efficiency of the injection process, and therefore has room for improvement. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an injection mold that is easy to cool and solidify. Its advantage is that it can easily remove the heat of the injection liquid, thereby improving the efficiency of cooling and solidifying the injection liquid.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for easy cooling and shaping, comprising an upper mold and a lower mold. The upper mold has a pouring gate at its top, and the lower mold has a shaping block inside. The shaping block has a cooling channel inside, the cooling channel having a U-shaped cross-section, and a drain pipe at its bottom. The shaping block has an installation hole inside, and an inlet pipe is provided on the inner wall of the installation hole. The outlet of the inlet pipe is located at the top of the shaping block. The top inner wall of the cooling channel has a cooling plate, and the top of the cooling plate has multiple equally spaced heat-conducting rods. The top of each heat-conducting rod has a heat-conducting sheet, which is located inside the mold cavity.

[0007] By adopting the above technical solution, after the injection mold completes injection, coolant is introduced into the inlet pipe. The coolant enters the cooling channel along the inlet pipe, where it exchanges heat with the injection liquid in the mold cavity. The exchanged coolant is then discharged through the drain pipe. The heat-conducting plates and rods improve the efficiency of heat transfer, making it easier to remove the heat from the injection liquid and improving the efficiency of cooling and solidification of the injection liquid.

[0008] In a preferred embodiment, the cooling plate has an arc-shaped cross-section.

[0009] By adopting the above technical solution, the arc-shaped cross-section design allows the coolant to be dispersed to both sides along the slope of the cooling plate, improving the efficiency of coolant flow.

[0010] In a preferred embodiment: the bottom of the cooling plate is provided with a plurality of heat-conducting protrusions distributed at equal intervals, and the heat-conducting protrusions are integrally formed with the cooling plate.

[0011] By adopting the above technical solution, the setting of the heat-conducting protrusion can increase the contact area between the cooling plate and the coolant, thereby improving the efficiency of heat exchange.

[0012] In a preferred embodiment: cooling holes are provided on both sides of the inner wall of the cooling channel, and the cross-section of the cooling holes is C-shaped.

[0013] By adopting the above technical solution, the setting of the cooling hole facilitates the entry of coolant in the cooling channel into the cooling hole, increases the contact area between the coolant and the injection molding liquid, and improves the cooling effect.

[0014] In a preferred embodiment: the inner wall of the cooling hole is provided with an installation hole, and a heat-conducting column is inserted into the inner wall of the installation hole. The end of the heat-conducting column away from the cooling hole extends into the mold cavity.

[0015] By adopting the above technical solution, the setting of the heat-conducting column can increase the heat conduction rate between the coolant and the injection molding liquid in the cooling hole, thereby further improving the cooling effect.

[0016] In a preferred embodiment, the heat-conducting pillar is made of pure copper.

[0017] By adopting the above technical solution, the heat-conducting column made of pure copper has a good thermal conductivity, which facilitates the rapid transfer of heat from the injection molding liquid to the coolant and improves the molding speed of the injection molding liquid.

[0018] In a preferred embodiment: multiple guide blocks are provided on both sides of the shaping block at equal intervals, and the cross-section of the guide blocks is triangular.

[0019] By adopting the above technical solution, the guide block can be conveniently introduced into the cooling hole from the heat conduction channel, which increases the contact time between the coolant and the injection molding liquid and improves the cooling and shaping effect.

[0020] Compared with the prior art, this application has the following beneficial effects: 1. After injection molding is completed, coolant is introduced into the inlet pipe. The coolant flows into the cooling channel, where it exchanges heat with the injection molding liquid in the mold cavity. The cooled liquid is then discharged through the drain pipe. The heat-conducting plates and rods improve the efficiency of heat transfer, facilitating the removal of heat from the injection molding liquid and improving the efficiency of cooling and solidification. 2. The arc-shaped cross-section design allows the coolant to be dispersed to both sides along the slope of the cooling plate, improving the efficiency of coolant flow; the heat-conducting protrusions increase the contact area between the cooling plate and the coolant, improving the efficiency of heat exchange. 3. The cooling holes facilitate the entry of coolant from the cooling channel into the cooling holes, increasing the contact area between the coolant and the injection molding liquid; the heat-conducting pillars increase the heat conduction rate between the coolant and the injection molding liquid in the cooling holes, further improving the cooling effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows: 1. Upper mold; 2. Lower mold; 3. Pour gate; 4. Shaping block; 5. Cooling channel; 6. Drain pipe; 7. Inlet pipe; 8. Cooling plate; 9. Heat-conducting rod; 10. Heat-conducting sheet; 11. Heat-conducting protrusion; 12. Cooling hole; 13. Heat-conducting column; 14. Flow guide block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0024] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the disclosed product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0025] An injection mold that facilitates cooling and setting, such as Figure 1-3 As shown, the mold includes an upper mold 1 and a lower mold 2. The upper mold 1 has a pouring port 3 at its top. The lower mold 2 has a shaping block 4 inside. The shaping block 4 has a cooling channel 5 inside. The cooling channel 5 has a U-shaped cross-section. The bottom of the cooling channel 5 has a drain pipe 6. The shaping block 4 has an installation hole inside. The inner wall of the installation hole has an inlet pipe 7. The outlet of the inlet pipe 7 is located at the top of the shaping block 4. The top inner wall of the cooling channel 5 has a cooling plate 8. The top of the cooling plate 8 has multiple heat-conducting rods 9 evenly distributed. The top of the heat-conducting rods 9 has a heat-conducting sheet 10. The heat-conducting sheet 10 is located inside the mold cavity.

[0026] In this embodiment, as Figure 2 As shown, cooling holes 12 are provided on both inner walls of the cooling channel 5. The cross-section of the cooling holes 12 is C-shaped. The cooling liquid in the cooling channel can easily enter the cooling holes 12, which increases the contact area between the cooling liquid and the injection molding liquid and improves the cooling effect. The inner wall of the cooling holes 12 is provided with mounting holes, and heat-conducting pillars 13 are inserted into the inner wall of the mounting holes. The end of the heat-conducting pillar 13 away from the cooling holes 12 extends into the mold cavity. The heat-conducting pillar 13 can increase the heat conduction rate between the cooling liquid and the injection molding liquid in the cooling holes 12, further improving the cooling effect. The heat-conducting pillar 13 is made of pure copper. The heat-conducting pillar 13 made of pure copper has a good thermal conductivity, which facilitates the rapid transfer of heat from the injection molding liquid to the cooling liquid and improves the molding speed of the injection molding liquid.

[0027] Furthermore, such as Figure 3 As shown, the cooling plate 8 has an arc-shaped cross-section. This arc-shaped cross-section allows the coolant to disperse along the inclined surface of the cooling plate 8 to both sides, improving the efficiency of coolant flow. The bottom of the cooling plate 8 has multiple evenly distributed heat-conducting protrusions 11, which are integrally formed with the cooling plate 8. These protrusions increase the contact area between the cooling plate 8 and the coolant, further improving heat exchange efficiency. It is worth mentioning that multiple guide blocks 14 are evenly distributed on both sides of the shaping block 4. The cross-section of the guide block 14 is triangular. The guide block 14 can easily guide the coolant in the heat conduction channel 5 into the cooling hole 12, which increases the contact time between the coolant and the injection molding liquid and improves the cooling and shaping effect.

[0028] The working process and beneficial effects of this utility model are as follows: After the injection mold completes the injection, coolant is introduced into the inlet pipe 7. The coolant enters the cooling channel 5 along the inlet pipe 7. The coolant in the cooling channel 5 exchanges heat with the injection liquid in the mold cavity. The exchanged coolant is discharged along the drain pipe 6. The heat-conducting plate 10 and the heat-conducting rod 9 can improve the efficiency of heat transfer, facilitate the removal of heat from the injection liquid, and improve the efficiency of cooling and solidification of the injection liquid.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An injection mold for easy cooling and shaping, comprising an upper mold (1) and a lower mold (2), wherein the top of the upper mold (1) is provided with a pouring gate (3), characterized in that: The lower mold (2) is provided with a shaping block (4) inside. The shaping block (4) is provided with a cooling channel (5) inside. The cooling channel (5) has a U-shaped cross section. The bottom of the cooling channel (5) is provided with a drain pipe (6). The shaping block (4) is provided with an installation hole. The inner wall of the installation hole is provided with a liquid inlet pipe (7). The outlet of the liquid inlet pipe (7) is located at the top of the shaping block (4). The top inner wall of the cooling channel (5) is provided with a cooling plate (8). The top of the cooling plate (8) is provided with multiple heat-conducting rods (9) distributed at equal intervals. The top of the heat-conducting rods (9) is provided with heat-conducting sheets (10). The heat-conducting sheets (10) are located inside the mold cavity.

2. The injection mold for easy cooling and shaping according to claim 1, characterized in that: The cooling plate (8) has an arc-shaped cross-section.

3. The injection mold for easy cooling and shaping according to claim 2, characterized in that: The bottom of the cooling plate (8) is provided with multiple heat-conducting protrusions (11) distributed at equal intervals, and the heat-conducting protrusions (11) are integrally formed with the cooling plate (8).

4. The injection mold for easy cooling and shaping according to claim 1, characterized in that: Cooling holes (12) are provided on both sides of the inner wall of the cooling channel (5), and the cross-section of the cooling hole (12) is C-shaped.

5. The injection mold for easy cooling and shaping according to claim 4, characterized in that: The inner wall of the cooling hole (12) is provided with an installation hole, and a heat-conducting column (13) is inserted into the inner wall of the installation hole. The end of the heat-conducting column (13) away from the cooling hole (12) extends into the mold cavity.

6. The injection mold for easy cooling and shaping according to claim 5, characterized in that: The heat-conducting column (13) is made of pure copper.

7. The injection mold for easy cooling and shaping according to any one of claims 1-6, characterized in that: Multiple guide blocks (14) are provided on both sides of the shaping block (4) at equal intervals, and the cross-section of the guide block (14) is triangular.

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