Injection mold for shell of ice maker

Abstract

The utility model discloses an injection mold for an ice maker shell, and aims to solve the problem that the existing injection mold for the ice maker shell is inconvenient to demold due to the complicated shape of the ice maker shell in the production process. The mold comprises a lower fixing plate and an upper fixing plate, two connecting plates are fixedly connected to the front side and the rear side of the upper surface of the lower fixing plate, a lower mold plate is fixedly connected to the upper surfaces of the connecting plates, a lower mold core is arranged in the middle of the lower mold plate, and a jacking assembly is arranged between the lower mold core and the lower fixing plate. When the upper mold plate moves upwards to be separated from the lower mold plate, the distances among the four upper mold cores can be gradually increased, so that the lower mold cores are completely exposed, then a molded ice maker shell is separated from the main mold core, and meanwhile, the molded ice maker shell extends out of the auxiliary mold core; and therefore, the ice maker shell with a complex shape can be conveniently demolded, and the injection molding efficiency of products is improved.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology for ice maker housings, and specifically relates to an injection mold for ice maker housings. Background Technology

[0002] An ice maker is a refrigeration machine that produces ice by cooling water through an evaporator with a refrigerant in a refrigeration system. With the widespread use of ice makers, people have increasingly higher requirements for their quality, including the quality of the ice maker's casing. The casing of an ice maker is generally manufactured using injection molding. The raw material is heated, cooled in a mold, and then removed to become an ice maker casing product.

[0003] Existing injection molds for ice maker housings are prone to significant damage during production due to the complex shape of the ice maker housing, resulting in a high breakage rate and difficulty in demolding. To address these issues, a new injection mold for ice maker housings is proposed. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an injection mold for ice maker housing. This mold is designed to solve the problem that the complex shape of the ice maker housing makes demolding difficult during the production process.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides an injection mold for an ice maker housing. The mold includes a lower fixed plate and an upper fixed plate. Two connecting plates are fixedly connected to the front and rear sides of the upper surface of the lower fixed plate. A lower template is fixedly connected to the upper surface of the connecting plates. A lower mold core is provided in the middle of the lower template. A lifting component is provided between the lower mold core and the lower fixed plate. An upper template is fixedly connected to the lower surface of the upper fixed plate. An installation groove is opened on the lower surface of the upper template. An installation plate is fixedly connected to the inner top wall of the installation groove. The inner side wall of the installation groove gradually slopes outward from top to bottom and is slidably connected to four upper mold cores through a reset component. After the four upper mold cores and the lower mold cores are molded together, an ice maker housing cavity is formed. An injection port is opened on the upper fixed plate. The injection port passes through the upper template and the installation plate and communicates with the ice maker housing cavity.

[0008] Preferably, guide posts are fixedly connected to the four corners of the upper surface of the lower template, and guide holes corresponding to the guide posts are opened at the four corners of the lower surface of the upper template.

[0009] Furthermore, the lifting assembly includes a guide rod fixedly connected between the lower fixed plate and the lower template. A movable plate is slidably sleeved on the outer surface of the guide rod. A demolding ejector is fixedly connected to the upper surface of the movable plate. The other end of the demolding ejector passes through the lower template and is located inside the lower mold core.

[0010] Furthermore, the lower mold core includes a main mold core and an auxiliary mold core, and the ejector pins include multiple ejector pins and auxiliary ejector pins. The ejector pins are located inside the main mold core, and the auxiliary ejector pins are fixedly connected to the auxiliary mold core.

[0011] Furthermore, the reset assembly includes a T-shaped slider fixedly connected to the inner wall of the mounting groove side. The outer side of the upper mold core is provided with a groove corresponding to the T-shaped slider. Two inclined rods are fixedly connected to the edge of the lower surface of the mounting plate. The bottom end of the inclined rod is located inside the upper mold core. A spring is sleeved on the outer surface of the inclined rod between the mounting plate and the upper mold core.

[0012] Furthermore, a connecting nozzle is fixedly connected to the right side of the connecting plate, and the connecting nozzle is connected to the auxiliary mold core through a pipeline.

[0013] Furthermore, an injection port sleeve is installed inside the injection port.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In this invention, when the upper mold plate moves upward and separates from the lower mold plate, the restoring force of the spring allows the four upper mold cores on the outer side to slide along the T-shaped slider. As the inner wall of the mounting groove gradually slopes outward from top to bottom, the distance between the four upper mold cores gradually increases, allowing the lower mold core to be fully exposed. Then, the movable plate is pushed to move the ejector pin and auxiliary ejector rod upward, detaching the formed ice maker housing from the main mold core. At the same time, the auxiliary ejector rod moves the auxiliary mold core, extending the formed ice maker housing from the auxiliary mold core. Since there is no obstruction from the main mold core, it is convenient to demold ice maker housings with complex shapes, improving the efficiency of product injection molding.

[0017] This invention features two connectors that connect to external devices. The auxiliary mold core has a flow channel and a pipeline that connects to the flow channel. Cooling liquid can be introduced into the auxiliary mold core through the connectors and pipelines, thereby accelerating the cooling and shaping of the auxiliary mold core and avoiding the problem of increased product breakage rate due to slow cooling during demolding. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a frontal cross-sectional structural diagram of the present invention.

[0020] Figure 3 This is a cross-sectional structural diagram of the reset component of this utility model.

[0021] Figure 4 This is a cross-sectional structural diagram of the guide rod of this utility model.

[0022] Figure 5 This is the utility model Figure 3 A magnified structural diagram of point A in the middle.

[0023] Figure 6 This is a schematic diagram of the structure of the mold core of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the mold core forming ice maker housing of this utility model.

[0025] The markings in the attached diagram are as follows: 1. Lower fixing plate; 2. Upper fixing plate; 3. Connecting plate; 4. Lower template; 5. Lower mold core; 6. Lifting assembly; 7. Upper template; 8. Mounting slot; 9. Mounting plate; 10. Reset assembly; 11. Upper mold core; 12. Ice maker housing cavity; 13. Injection port; 14. Guide post; 15. Guide hole; 16. Connecting nozzle; 17. Pipeline; 601. Guide rod; 602. Movable plate; 603. Demolding ejector pin; 501. Main mold core; 502. Auxiliary mold core; 6031. Ejector pin; 6032. Auxiliary ejector pin; 1001. T-shaped slider; 1002. Slide groove; 1003. Diagonal bar; 1004. Spring; 1301. Injection port sleeve. Detailed Implementation

[0026] This specific embodiment is an injection mold for an ice maker housing, and its structural schematic diagram is shown below. Figures 1-7 As shown, the mold includes a lower fixed plate 1 and an upper fixed plate 2. Two connecting plates 3 are fixedly connected to the front and rear sides of the upper surface of the lower fixed plate 1. A lower template 4 is fixedly connected to the upper surface of the connecting plate 3. A lower mold core 5 is provided in the middle of the lower template 4. A lifting component 6 is provided between the lower mold core 5 and the lower fixed plate 1. An upper template 7 is fixedly connected to the lower surface of the upper fixed plate 2. An installation groove 8 is opened on the lower surface of the upper template 7. An installation plate 9 is fixedly connected to the inner top wall of the installation groove 8. The inner side wall of the installation groove 8 gradually slopes outward from top to bottom and is slidably connected to four upper mold cores 11 through a reset component 10. After the four upper mold cores 11 and the lower mold core 5 are molded together, an ice maker housing cavity 12 is formed. An injection port 13 is opened on the upper fixed plate 2. The injection port 13 passes through the upper template 7 and the installation plate 9 and communicates with the ice maker housing cavity 12.

[0027] like Figure 1 and Figure 4As shown: In this embodiment, guide posts 14 are fixedly connected to the four corners of the upper surface of the lower template 4, and guide holes 15 corresponding to the guide posts 14 are opened at the four corners of the lower surface of the upper template 7.

[0028] In this way, the upper mold plate 7 and the lower mold plate 4 are separated by the press. At this time, the guide post 14 can slide in the guide hole 15. When the upper mold plate 7 and the lower mold plate 4 are closed, the guide post 14 and the guide hole 15 can cooperate more precisely.

[0029] like Figure 1 and Figure 2 As shown: In this embodiment, the lifting assembly 6 includes a guide rod 601 fixedly connected between the lower fixed plate 1 and the lower template 4. A movable plate 602 is slidably sleeved on the outer surface of the guide rod 601. A demolding ejector rod 603 is fixedly connected to the upper surface of the movable plate 602. The other end of the demolding ejector rod 603 passes through the lower template 4 and is located inside the lower mold core 5. By pushing the movable plate 602 to drive the demolding ejector rod 603 to move upward, the formed ice maker shell can be detached from the lower mold core 5.

[0030] like Figure 2 and Figure 6 As shown: In this embodiment, the lower mold core 5 includes a main mold core 501 and an auxiliary mold core 502. The ejector pin 603 includes multiple ejector pins 6031 and auxiliary ejector pins 6032. The ejector pins 6031 are located inside the main mold core 501, and the auxiliary ejector pins 6032 are fixedly connected to the auxiliary mold core 502.

[0031] The complex-shaped parts of the ice maker housing are designed at the auxiliary mold core 502. When the movable plate 602 drives the ejector pin 6031 and the auxiliary ejector rod 6032 to move upward and detach the formed ice maker housing from the main mold core 501, the auxiliary ejector rod 6032 drives the auxiliary mold core 502 to move and extend the formed ice maker housing from the auxiliary mold core 502. Since there is no obstruction from the main mold core 501, it is easy to demold the complex-shaped ice maker housing.

[0032] like Figure 3 and Figure 5 As shown: In this embodiment, the reset assembly 10 includes a T-shaped slider 1001 fixedly connected to the inner wall of the side of the mounting groove 8. The outer side of the upper mold core 11 is provided with a sliding groove 1002 corresponding to the T-shaped slider 1001. Two inclined rods 1003 are fixedly connected to the edge of the lower surface of the mounting plate 9. The bottom end of the inclined rod 1003 is located inside the upper mold core 11. A spring 1004 is sleeved on the outer surface of the inclined rod 1003 and located between the mounting plate 9 and the upper mold core 11. The inclined rod 1003 makes the upper mold core 11 slide more stably and is provided with a limit block to prevent the upper mold core 11 from detaching.

[0033] The upper mold plate 7 is moved upward by the press and separated from the lower mold plate 4. At this time, the restoring force of the spring 1004 can make the four upper mold cores 11 on the outside slide along the T-shaped slider 1001. Since the inner wall of the side of the mounting groove 8 gradually tilts outward from top to bottom, the distance between the four upper mold cores 11 can gradually increase, so that the lower mold core 5 is fully exposed and demolding is better. When the upper mold plate 7 and the lower mold plate 4 are closed, the spring 1004 is compressed, and the four upper mold cores 11 and the lower mold core 5 form the ice maker housing cavity 12.

[0034] like Figure 1 and Figure 2 As shown: In this embodiment, a connecting nozzle 16 is fixedly connected to the right side of the connecting plate 3. The connecting nozzle 16 is connected to the auxiliary mold core 502 through the pipe 17. The connecting nozzle 16 has two interfaces and is connected to external equipment. A flow channel is provided inside the auxiliary mold core 502 and communicates with the pipe 17. Cooling liquid can be introduced into the auxiliary mold core 502 through the connecting nozzle 16 and the pipe 17, thereby accelerating the cooling and shaping of the auxiliary mold core 502 and avoiding the situation of slow cooling during demolding, which would cause greater damage. An injection port sleeve 1301 is installed inside the injection port 13.

[0035] Working principle: When injection molding is required, the material enters the main channel through the injection port 13, and then flows into the ice maker housing cavity 12 formed by the lower mold core 5 and the four upper mold cores 11. Cooling liquid is then introduced into the auxiliary mold core 502 through the connecting nozzle 16 and the pipe 17, thereby accelerating the cooling and shaping at the auxiliary mold core 502 until the raw material cools and forms the ice maker housing product within the cavity 12. Then, the upper fixed plate 2 and the upper mold plate 7 are moved upwards and separated from the lower mold plate 4 by the press. At this time, the restoring force of the spring 1004 allows the four outer upper mold cores 11 to move along... As the T-shaped slider 1001 slides, the inner wall of the mounting groove 8 gradually slopes outward from top to bottom, allowing the distance between the four upper mold cores 11 to gradually increase, thus fully exposing the lower mold core 5. Then, the movable plate 602 is pushed to move the ejector pin 6031 and the auxiliary ejector rod 6032 upward, detaching the formed ice maker housing from the main mold core 501. At the same time, the auxiliary ejector rod 6032 moves the auxiliary mold core 502, extending the formed ice maker housing from the auxiliary mold core 502. Since there is no obstruction from the main mold core 501, it is easier to demold the complex-shaped ice maker housing.

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An ice maker housing injection mold, the mold comprising a lower fixed plate (1) and an upper fixed plate (2), characterized in that: The upper surface of the lower fixed plate (1) is fixedly connected with two connecting plates (3) on the front and back sides, the upper surface of the connecting plate (3) is fixedly connected with a lower mold plate (4), the middle part of the lower mold plate (4) is provided with a lower mold core (5), the lower mold core (5) and the lower fixed plate (1) are provided with a jacking assembly (6), the lower surface of the upper fixed plate (2) is fixedly connected with an upper mold plate (7), the lower surface of the upper mold plate (7) is provided with a mounting groove (8), the inner top wall of the mounting groove (8) is fixedly connected with a mounting plate (9), the side inner wall of the mounting groove (8) gradually inclines outward from top to bottom and is slidably connected with four upper mold cores (11) through a reset assembly (10), the four upper mold cores (11) and the lower mold core (5) form an ice maker shell cavity (12) after closing, the upper fixed plate (2) is provided with an injection port (13), the injection port (13) penetrates through the upper mold plate (7) and the mounting plate (9) and is in communication with the ice maker shell cavity (12).

2. The ice maker housing injection mold of claim 1, wherein, The upper surface of the lower mold plate (4) is fixedly connected with guide columns (14) at four corners, and the lower surface of the upper mold plate (7) is provided with guide holes (15) corresponding to the guide columns (14) at four corners.

3. The ice maker housing injection mold of claim 2, wherein, The jacking assembly (6) comprises a guide rod (601) fixedly connected between the lower fixed plate (1) and the lower mold plate (4), the outer surface of the guide rod (601) is slidably sleeved with a movable plate (602), the upper surface of the movable plate (602) is fixedly connected with a demolding ejector rod (603), and the other end of the demolding ejector rod (603) penetrates through the lower mold plate (4) and is located in the inside of the lower mold core (5).

4. The ice maker housing injection mold of claim 3, wherein, The lower mold core (5) comprises a main mold core (501) and an auxiliary mold core (502), the demolding ejector rod (603) comprises a plurality of ejector pins (6031) and an auxiliary ejector rod (6032), the ejector pins (6031) are located in the inside of the main mold core (501), and the auxiliary ejector rod (6032) is fixedly connected with the auxiliary mold core (502).

5. The ice maker housing injection mold of claim 4, wherein, The reset assembly (10) comprises a T-shaped sliding block (1001) fixedly connected to the side inner wall of the mounting groove (8), the outer side of the upper mold core (11) is provided with a sliding groove (1002) corresponding to the T-shaped sliding block (1001), the edges of the lower surface of the mounting plate (9) are fixedly connected with two inclined rods (1003), the bottom end of the inclined rod (1003) is located in the inside of the upper mold core (11), and the outer surface of the inclined rod (1003) and between the mounting plate (9) and the upper mold core (11) is sleeved with a spring (1004).

6. The ice maker housing injection mold of claim 5, wherein, The right side of the connecting plate (3) is fixedly connected with a connecting nozzle (16), and the connecting nozzle (16) is connected with the auxiliary mold core (502) through a pipeline (17).

7. The ice maker housing injection mold of claim 6, wherein, The inside of the injection port (13) is provided with an injection port sleeve (1301).

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