Refrigerator door cover injection mold

Abstract

The utility model belongs to mould technical field, concretely is a kind of refrigerator door cover injection mould, including bottom plate, the bottom plate top is fixedly installed with lower mould, the lower mould top is provided with upper mould, the lower mould outer surface is equipped with spiral groove, the upper and lower of inside spiral groove all extend to lower mould outside, the inside spiral groove is inserted with cooling pipe by limiting component, the cooling pipe lower end port is water inlet, the cooling pipe upper end port is water outlet, the cooling pipe lower end is connected with pipe cover two, the cooling pipe upper end is connected with pipe cover one, the lower mould inside lower is provided with stripping assembly;The utility model can more simply solve the arrangement problem of cooling pipe by the spiral groove set on the outer surface of lower mould, and the spiral groove set on the outer surface of the mould not only facilitates processing, but also makes the installation and maintenance of cooling pipe more convenient by modular design, so that the mould is convenient to use, and practicality is stronger.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a refrigerator door cover injection mold. Background Technology

[0002] Injection molds are tools used to produce plastic products. They consist of multiple precisely fitted parts that inject molten plastic into the mold under high pressure, allowing it to cool and solidify to form the desired product. The refrigerator door cover is a crucial external component of a refrigerator, protecting the internal contents and also playing an important role in the refrigerator's exterior design. To improve production efficiency, reduce costs, and ensure product quality, injection molding technology is widely used in refrigerator door cover production; therefore, a refrigerator door cover injection mold is required in the manufacturing process.

[0003] However, most existing refrigerator door cover injection molds require complex cooling channels to be designed inside the mold during use. This requires precise processing and layout during mold manufacturing, and the position and shape of the channels are subject to significant restrictions. Especially for some complex molds, the arrangement of the channels can be very difficult, which is not conducive to the maintenance and replacement of the cooling system and makes the mold less practical. Therefore, a refrigerator door cover injection mold is proposed to address the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and solve the problem that most existing refrigerator door cover injection molds require the design of complex cooling channels inside the mold, which requires precise processing and layout during mold manufacturing, and the position and shape of the channels are subject to great restrictions, especially for some complex molds, the arrangement of the channels is very difficult, which is not conducive to the maintenance and replacement of the cooling system and makes the mold less practical, this utility model proposes a refrigerator door cover injection mold.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a refrigerator door cover injection mold of this utility model includes a base plate, a lower mold is fixedly installed on the top of the base plate, and an upper mold is provided on the top of the lower mold; The outer surface of the lower mold is provided with a spiral groove. The spiral groove extends to the outside of the lower mold at both the top and bottom. A cooling pipe is inserted into the spiral groove through a limiting component. The lower end of the cooling pipe is a water inlet, and the upper end of the cooling pipe is a water outlet. A second pipe cap is threaded to the lower end of the cooling pipe, and a first pipe cap is threaded to the upper end of the cooling pipe. A demolding component is provided at the bottom of the lower mold.

[0006] Preferably, the limiting component includes a limiting plate mounted on the outer surface of the lower mold by limiting bolts. Multiple limiting plates are provided and evenly distributed on the outer surface of the lower mold, and the outer surface of the limiting plate is in contact with the outer surface of the cooling pipe.

[0007] Preferably, the limiting plate has a through groove inside, the limiting bolt passes through the limiting plate and is threadedly connected to the lower mold, and the outer end of the limiting bolt is located inside the groove.

[0008] Preferably, the demolding assembly includes an inner groove formed in the lower part of the lower mold, a hydraulic cylinder is fixedly installed on the lower surface of the inner groove, a through groove is formed between the inner groove and the injection groove inside the lower mold, a demolding template is inserted into the through groove, and the output end of the hydraulic cylinder is fixedly connected to the bottom of the demolding template.

[0009] Preferably, guide rods are fixedly connected to the front and rear of the left and right sides of the top of the base plate, and through guide holes are opened on the upper and lower sides of the left and right sides inside the upper mold. The top of the guide rod passes through the guide hole, and the guide rod is slidably connected to the guide hole.

[0010] Preferably, the upper surface inside the upper mold has a through-type injection port, and an injection tube is fixedly installed at the center of the top of the upper mold, the injection tube communicating with the inside of the injection port.

[0011] Preferably, handles are fixedly connected to both the left and right sides of the top of the upper mold.

[0012] The advantages of this utility model are: 1. This utility model can solve the problem of cooling pipe arrangement relatively simply by setting a spiral groove on the outer surface of the lower mold. The spiral groove on the outer surface of the mold is not only easy to process, but also makes the installation and maintenance of the cooling pipe more convenient through modular design, thus making the mold easy to use and highly practical.

[0013] 2. This utility model uses a hydraulic cylinder to lift the demolding platen, which facilitates the rapid demolding of the cooled injection molded parts and allows the mold to meet more usage requirements, thus resulting in better mold performance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the three-dimensional structure in Example 1; Figure 2 This is a front view structural diagram of Embodiment 1; Figure 3 As in Example 1 Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of a partial cross-section of the structure in Example 1; Figure 5 This is a schematic diagram of the handle structure in Embodiment 2.

[0016] In the diagram: 1. Base plate; 2. Guide rod; 3. Guide hole; 4. Upper mold; 5. Injection tube; 6. Lower mold; 7. Spiral groove; 8. Cooling tube; 9. Tube cap one; 10. Tube cap two; 11. Limiting plate; 12. Handle groove; 13. Limiting bolt; 14. Through groove; 15. Demolding plate; 16. Hydraulic cylinder; 17. Inner groove; 18. Handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1 Please see Figure 1-4 As shown, a refrigerator door cover injection mold includes a base plate 1, a lower mold 6 is fixedly installed on the top of the base plate 1, and an upper mold 4 is provided on the top of the lower mold 6; The lower mold 6 has a spiral groove 7 on its outer surface. The spiral groove 7 extends both upwards and downwards to the outside of the lower mold 6. A cooling pipe 8 is inserted into the spiral groove 7 via a limiting component. The lower end of the cooling pipe 8 is an inlet, and the upper end is an outlet. A pipe cap 10 is threaded to the lower end of the cooling pipe 8, and a pipe cap 9 is threaded to the upper end. A demolding component is located at the bottom of the lower mold 6. During operation, the bottom of the base plate 1 is placed against a flat surface to stabilize the mold. After the mold is stabilized, the refrigerator door cover is injection molded using the upper mold 4 and the lower mold 6. Then, the lower mold 6 is cooled by the cooling pipe 8 inserted into the spiral groove 7. The injection molded part between mold 6 and upper mold 4 is cooled, resulting in a better cooling effect. At the same time, the cooling pipe 8 can be opened through pipe cap 1 9 and pipe cap 2 10 to allow the coolant to enter and exit. The limiting component can limit the cooling pipe 8 and facilitate the stable installation of the cooling pipe 8. The cooling pipe 8 is also easy to disassemble, inspect, and replace. After cooling, the demolding component facilitates the quick demolding of the injection molded part, making the mold easy to use. Therefore, the spiral groove 7 set on the outer surface of lower mold 6 can solve the problem of the arrangement of cooling pipe 8 relatively simply. Moreover, the spiral groove 7 set on the outer surface of the mold is not only easy to process, but also makes the installation and maintenance of cooling pipe 8 more convenient through modular design, thus making the mold easy to use and highly practical.

[0019] The limiting assembly includes a limiting plate 11 mounted on the outer surface of the lower mold 6 by limiting bolts 13. Multiple limiting plates 11 are provided and evenly distributed on the outer surface of the lower mold 6. The outer surface of the limiting plate 11 is in contact with the outer surface of the cooling pipe 8. During operation, the multiple limiting plates 11 evenly distributed on the outer surface of the lower mold 6 limit the cooling pipe 8, making the cooling pipe 8 stably installed on the outer surface of the lower mold 6. The limiting bolts 13 facilitate the disassembly and installation of the limiting plate 11.

[0020] The limiting plate 11 has a through groove 12 inside, and the limiting bolt 13 passes through the limiting plate 11 and is threadedly connected to the lower mold 6. The outer end of the limiting bolt 13 is located inside the groove 12. During operation, the groove 12 facilitates the gripping and movement of the limiting plate 11, and the outer end of the limiting bolt 13 is located inside the groove 12, which facilitates rotation and disassembly. It also facilitates the disassembly and installation of the limiting plate 11. The limiting plate 11 limits the cooling pipe 8, making the cooling pipe 8 installed stably inside the spiral groove 7. The limiting plate 11 is easy to disassemble, which also facilitates the disassembly of the cooling pipe 8, thereby facilitating the disassembly, maintenance, and replacement of the cooling pipe 8.

[0021] The demolding assembly includes an inner groove 17 located below the interior of the lower mold 6. A hydraulic cylinder 16 is fixedly installed on the lower surface of the inner groove 17. A through groove 14 is provided between the inner groove 17 and the injection groove inside the lower mold 6. A demolding template 15 is inserted into the through groove 14. The output end of the hydraulic cylinder 16 is fixedly connected to the bottom of the demolding template 15. During operation, the hydraulic cylinder 16 drives the demolding template 15 to move and lift the injection molded part inside the injection groove for demolding, which also facilitates the rapid demolding of the cooled injection molded part.

[0022] Guide rods 2 are fixedly connected to the front and rear of the top left and right sides of the base plate 1. Guide holes 3 are opened at the top and bottom of the left and right sides inside the upper mold 4. The top of the guide rod 2 passes through the guide hole 3, and the guide rod 2 is slidably connected to the guide hole 3. During operation, the sliding connection between the guide rod 2 and the guide hole 3 limits the installation and fitting between the upper mold 4 and the lower mold 6, and facilitates the stable fitting of the upper mold 4 and the lower mold 6, and can fit accurately.

[0023] The upper mold 4 has a through-type injection port on its inner upper surface. An injection tube 5 is fixedly installed at the center of the top of the upper mold 4. The injection tube 5 communicates with the inside of the injection port. During operation, the injection tube 5 facilitates external injection molding of the mold and makes the mold easy to use.

[0024] Example 2 Please see Figure 5 As shown in the first embodiment, as another implementation of this utility model, the upper mold 4 is fixedly connected to the left and right sides of the top; during operation, the handles 18 facilitate the handling and repositioning of the upper mold 4.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A refrigerator door cover injection mold, comprising a base plate (1), wherein a lower mold (6) is fixedly installed on the top of the base plate (1), and an upper mold (4) is provided on the top of the lower mold (6); Its features are: The lower mold (6) has a spiral groove (7) on its outer surface. The spiral groove (7) extends to the outside of the lower mold (6) both above and below. A cooling pipe (8) is inserted into the spiral groove (7) through a limiting component. The lower end of the cooling pipe (8) is a water inlet, and the upper end of the cooling pipe (8) is a water outlet. The lower end of the cooling pipe (8) is threaded with a second pipe cap (10), and the upper end of the cooling pipe (8) is threaded with a first pipe cap (9). A demolding component is provided at the bottom of the lower mold (6).

2. The refrigerator door cover injection mold according to claim 1, characterized in that: The limiting assembly includes a limiting plate (11) installed on the outer surface of the lower mold (6) by a limiting bolt (13). Multiple limiting plates (11) are provided and evenly distributed on the outer surface of the lower mold (6). The outer surface of the limiting plate (11) is in contact with the outer surface of the cooling pipe (8).

3. The refrigerator door cover injection mold according to claim 2, characterized in that: The limiting plate (11) has a through groove (12) inside. The limiting bolt (13) passes through the limiting plate (11) and is threadedly connected to the lower mold (6). The outer end of the limiting bolt (13) is located inside the groove (12).

4. The refrigerator door cover injection mold according to claim 3, characterized in that: The demolding assembly includes an inner groove (17) located below the interior of the lower mold (6). A hydraulic cylinder (16) is fixedly installed on the lower surface of the inner groove (17). A through groove (14) is provided between the inner groove (17) and the injection groove inside the lower mold (6). A demolding template (15) is inserted into the through groove (14). The output end of the hydraulic cylinder (16) is fixedly connected to the bottom of the demolding template (15).

5. A refrigerator door cover injection mold according to claim 4, characterized in that: Guide rods (2) are fixedly connected to the front and rear sides of the top left and right sides of the base plate (1). The upper mold (4) has through guide holes (3) on the upper and lower sides of the left and right sides inside. The top of the guide rod (2) passes through the guide hole (3). The guide rod (2) and the guide hole (3) are slidably connected.

6. A refrigerator door cover injection mold according to claim 5, characterized in that: The upper mold (4) has a through-type injection port on its inner upper surface. An injection tube (5) is fixedly installed at the center of the top of the upper mold (4). The injection tube (5) is connected to the inside of the injection port.

7. A refrigerator door cover injection mold according to claim 6, characterized in that: The upper mold (4) has handles (18) fixedly connected to the left and right sides of the top.

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