A multi-cavity injection mold

Abstract

The application provides a multi-cavity injection mold, and belongs to the technical field of molds. The mold comprises a fixed mold, a movable mold and a product rack. After the movable mold is combined with the fixed mold, a containing cavity for containing the product rack is formed between the fixed mold and the movable mold. The product rack is provided with a plurality of different product positions. When the product rack is contained in the containing cavity, the plurality of different product positions form different product cavities between the fixed mold and the movable mold. The mold increases the product rack between the fixed mold and the movable mold, so that the product rack and the fixed mold form different product cavities. Therefore, a plurality of products can be simultaneously injection molded in the production process, and the production efficiency of the injection molded products can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of mold technology, and in particular to a multi-cavity injection mold. Background Technology

[0002] Injection molds are essential process equipment for producing various industrial products. With the rapid development of the plastic mold design industry and the widespread application of plastic products in aerospace, electronics, machinery, shipbuilding and automotive industries, the market demands for injection molds are becoming increasingly higher.

[0003] In the manufacturing process of air conditioners, injection molds are typically used to produce related components. However, existing injection molds for producing air conditioner components usually only produce a single product, resulting in low production efficiency and failing to meet the requirements of enterprises for high-efficiency production.

[0004] Therefore, designing an injection mold that can simultaneously produce different products according to different needs is of great significance for improving the production efficiency of air conditioning parts. Summary of the Invention

[0005] To overcome the problems existing in related technologies, the purpose of this invention is to provide a multi-cavity injection mold. This mold adds a product frame between the fixed mold and the moving mold, so that different product cavities are formed between the product frame and the fixed mold, and between the fixed mold and the moving mold. Therefore, multiple products can be injected simultaneously during the production process, which can greatly improve the production efficiency of injection molded products.

[0006] A multi-cavity injection mold, comprising:

[0007] A fixed mold, a moving mold, and a product rack are provided. After the moving mold and the fixed mold are closed, a receiving cavity for accommodating the product rack is formed between the fixed mold and the moving mold.

[0008] The product rack has several different product positions. When the product rack is housed in the receiving cavity, the several different product positions form different product cavities with the fixed mold and the moving mold, respectively.

[0009] In a preferred embodiment of the present invention, the product rack includes a main body and a flow channel, the main body having a plurality of different product positions, and the flow channel being connected to the plurality of different product positions respectively.

[0010] In a preferred embodiment of the present invention, a plurality of different product positions include product position A and product position B, both of which are disposed on the main body and are connected to the main body through the flow channel.

[0011] In a preferred embodiment of the present invention, product position A and product position B are respectively provided in 3-5 units in the main body.

[0012] In a preferred embodiment of the present invention, the product position further includes a product position C;

[0013] The product position C is located at the edge of the main body.

[0014] In a preferred embodiment of the present invention, the main body is hollow inside; the flow channel includes flow channel A, flow channel B and flow channel C, one end of flow channel A, flow channel B and flow channel C are respectively connected to the main body, and the other end converges in the middle of the main body and is interconnected with each other.

[0015] In a preferred embodiment of the present invention, product position A and product position B are connected to flow channel A, flow channel B and flow channel C respectively; one end of each flow channel is connected to product position C and the other end is connected to product position A and product position B.

[0016] In a preferred embodiment of the present invention, each of the flow channels A, B, and C is provided with an injection hole and a shut-off valve; the shut-off valve is disposed between the injection hole and the product position A and the product position B, and is used to restrict the flow of injection molding compound through the flow channels to the product position A and the product position B.

[0017] In a preferred embodiment of the present invention, the fixed mold includes a fixed mold insert A and a fixed mold insert B, wherein the fixed mold insert B is disposed in the middle of the fixed mold insert A;

[0018] The moving mold includes a moving mold insert A and a moving mold insert B, wherein the moving mold insert B is disposed in the middle of the moving mold insert A;

[0019] After the fixed mold and the moving mold are closed, a cavity is formed between the fixed mold insert A and the moving mold insert A to accommodate the product position C; a cavity is formed between the fixed mold insert B and the moving mold insert B to accommodate the product position A and the product position B.

[0020] In a preferred embodiment of the present invention, the moving mold is provided with an injection position that communicates with the injection hole.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention provides a multi-cavity injection mold, comprising a fixed mold, a moving mold, and a product holder. After the moving mold and the fixed mold are closed, a cavity for accommodating the product holder is formed between the fixed mold and the moving mold. The product holder has several different product positions. When the fixed mold and the moving mold are closed, different product positions form different cavities with the moving mold and the fixed mold. During injection molding, different products can be produced in different cavities. Therefore, the mold can simultaneously produce multiple different products according to production needs. This overcomes the limitation of existing injection molds that can only produce a single product, significantly improving the efficiency of injection molded product production and enhancing the company's market competitiveness. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the moving mold and the fixed mold during demolding of the multi-cavity injection mold provided by the present invention;

[0024] Figure 2 This is a top view of the product rack provided by the present invention;

[0025] Figure 3 This is a top view of the mold provided by the present invention;

[0026] Figure 4 This is a top view of the moving model provided by the present invention.

[0027] Figure label:

[0028] 100. Fixed mold; 110. Fixed mold insert A; 120. Fixed mold insert B; 200. Product frame; 210. Main body; 220. Product position A; 230. Product position B; 240. Product position C; 250. Runner; 260. Injection hole; 2501. Runner A; 2502. Runner B; 2503. Runner C; 300. Moving mold; 310. Moving mold insert A; 320. Moving mold insert B; 3201. Injection position; 400. Shut-off valve. Detailed Implementation

[0029] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0030] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” as used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0031] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] like Figures 1-4 As shown, the present invention provides a multi-cavity injection mold, which includes a fixed mold 100, a movable mold 300 and a product frame 200. After the movable mold 300 and the fixed mold 100 are closed, a receiving cavity for accommodating the product frame 200 is formed between the fixed mold 100 and the movable mold 300.

[0033] The product rack 200 has several different product positions. When the product rack 200 is housed in the receiving cavity, the several different product positions form different product cavities with the fixed mold 100 and the moving mold 300, respectively.

[0034] Furthermore, the product rack 200 includes a main body 210 and a runner 250. The main body 210 has several different product positions, and the runner 250 is disposed in the main body 210 and communicates with several different product positions. More specifically, the different product positions can include different product types or different cavities of the same type of product. That is, this product can not only produce different products as needed, but also produce multiple products of the same model in a single injection molding process. It should be noted that the mold to be protected in this application also includes ejector pins, cooling systems, venting systems, and other components. Due to space limitations, this application will not elaborate on the related structures described above. The connection and fixation between the fixed mold 100 and the moving mold 300 can be achieved by bolts or other means. The moving mold 300 should be provided with an injection position 3201, which is connected to the runner 250 of the product frame 200. In actual use, injection molding material is injected into the runner 250 through the injection position 3201, so that the injection molding material enters the cavity of different product positions through the runner 250, thereby producing different injection molded products in different cavities.

[0035] The aforementioned multi-cavity injection mold includes a fixed mold 100, a movable mold 300, and a product holder 200. After the movable mold 300 and the fixed mold 100 are closed, a cavity for accommodating the product holder 200 is formed between them. The product holder 200 has several different product positions. When the fixed mold 100 and the movable mold 300 are closed, different product positions form different cavities with the movable mold 300 and the fixed mold 100. During injection molding, different cavities can produce different products. Therefore, this mold can simultaneously produce multiple different products according to production needs. This overcomes the limitation of existing injection molds that can only produce a single product, significantly improving the efficiency of injection molded product production and enhancing the company's market competitiveness.

[0036] In a more specific embodiment, several different product positions include product position A220 and product position B230, both of which are disposed on the main body 210 and connected to the main body 210 via flow channels 250. More specifically, the main body 210 has an annular structure with a hollow interior, and the different product positions are disposed in the center of the annular structure. Since each flow channel 250 is connected to each product position, injection molding compound can be injected into different product positions through the flow channels 250 to achieve injection molding of different products. The cross-section of the flow channel 250 can be circular, rectangular, or other shapes.

[0037] Furthermore, 3-5 product positions A220 and B230 are respectively provided in the main body 210, and each product position A220 or product position B230 is connected to the flow channel 250. In a more specific embodiment, 4 product positions A220 and B230 are provided, and all 4 product positions A220 and B230 are connected to the flow channel 250.

[0038] In a preferred embodiment, the product position further includes a product position C240; the product position C240 ​​is disposed at the edge of the main body 210, and the product position C240 ​​communicates with the flow channel 250. It should be noted that the product positions A220, B230, and C240 ​​mentioned in this application are all specific positions on the product rack 200, and these specific positions cooperate with the fixed mold 100 and the moving mold 300 to form injection cavities for injection molding different products. In this application, the product position C240 ​​is used for injection molding decorative strips for air conditioners, and the product positions A220 and B230 are used for injection molding different baffles for air conditioners.

[0039] Furthermore, the main body 210 is hollow internally; the flow channels 250 include flow channels A2501, B2502, and C2503. One end of each of the flow channels A2501, B2502, and C2503 is connected to the main body 210, and the other ends converge at the center of the main body 210 and are interconnected. In a more specific embodiment, the flow channels A2501, B2502, and C2503 are evenly distributed inside the main body 210, and one end of each of the three different flow channels 250 is connected to the main body 210. Therefore, regardless of which flow channel 250 injection begins, the injection molding compound can enter the product position C240 ​​through the flow channel 250. In addition, the various flow channels 250 converge and are interconnected, so during the injection molding process, the injection molding compound from each flow channel 250 can flow into different product positions, which improves injection molding interoperability and helps to improve injection molding efficiency.

[0040] Furthermore, product positions A220 and B230 are connected to each of the flow channels A2501, B2502, and C2503; one end of each flow channel 250 is connected to product position C240, and the other end is connected to product positions A220 and B230. In a more specific embodiment, four product positions A220 are provided at the confluence of the three flow channels 250, and the four product positions A220 are respectively connected to the confluence of the three flow channels 250 through pipes. Two product positions B230 are provided on flow channel B2502, and two are provided on flow channel C2503.

[0041] Furthermore, each of the runners A2501, B2502, and C2503 is provided with an injection hole 260 and a shut-off valve 400. The shut-off valve 400 is disposed between the injection hole 260 and the product positions A220 and B230, and is used to restrict the flow of injection molding compound through the runners 250 to the product positions A220 and B230. The moving mold 300 is provided with an injection position 3201 communicating with the injection hole 260. Through the injection position 3201, injection molding compound can be injected into each of the runners 250. By setting the shut-off valve 400, the flow direction of the injection molding compound in each runner 250 can be controlled to achieve selective injection molding. For example, when the shut-off valve 400 is opened, the injection molding compound entering from the injection hole 260 on the flow channel A2501 cannot flow to the product position A220, but can only flow in the direction away from the shut-off valve 400.

[0042] In a more specific embodiment, the fixed mold 100 includes a fixed mold insert A110 and a fixed mold insert B120, wherein the fixed mold insert B120 is disposed in the middle of the fixed mold insert A110;

[0043] The moving mold 300 includes a moving mold insert A310 and a moving mold insert B320, wherein the moving mold insert B320 is disposed in the middle of the moving mold insert A310;

[0044] After the fixed mold 100 and the moving mold 300 are closed, a cavity is formed between the fixed mold insert A110 and the moving mold insert A310 to accommodate the product position C240; a cavity is formed between the fixed mold insert B120 and the moving mold insert B320 to accommodate the product positions A220 and B230.

[0045] This application improves the moving mold 300 and the fixed mold 100 so that they are composed of two parts: the fixed mold insert A110 and the fixed mold insert B120. The fixed mold insert A110 and the fixed mold insert B120 are connected and fixed to each other to form a punch. The fixed mold insert B120 has protrusions adapted to the product positions A220 and B230, while the moving mold insert B320 has protrusions adapted to the product positions A220 and B230. Therefore, when the product holder 200 is fixed between the fixed mold 100 and the moving mold 300, a cavity is formed between the fixed mold insert B120 and the moving mold insert B320. Similarly, a cavity for accommodating the product position C240 ​​is formed between the fixed mold insert A110 and the moving mold insert A310. It should be noted that bolt holes are provided between the fixed mold insert A110 and the moving mold insert A310, so that the two can be fixed to each other by bolts to achieve mold closing.

[0046] The following is a detailed description of the injection molding process using the cavity injection mold protected in this application:

[0047] First, the fixed mold insert A110 and the fixed mold insert B120 are assembled to form a complete fixed mold 100, and the moving mold insert A310 and the moving mold insert B320 are assembled to form a complete moving mold 300. Then, the product holder 200 is placed between the fixed mold 100 and the moving mold 300, and the moving mold 300 and the fixed mold 100 are closed to form a complete mold after closing. After closing, the mold can inject injection molding compound into the runner 250 through the injection point 3201.

[0048] When it is necessary to produce three types of air conditioner parts, A, B, and C, simultaneously, the shut-off valves 400 in the three flow channels 250 are all in the open state, injecting molding compound into the three injection points respectively. This allows the molding compound to enter different product cavities, enabling the simultaneous production of different products from a single mold. After the products in the different product cavities are formed, they can be demolded and removed.

[0049] When a production run only requires the production of one of the products A, B, or C, selectively closing the shut-off valve 400 on the corresponding flow channel 250 can prevent the injection molding compound from entering the cavities of other products.

[0050] When using the injection mold of this application for injection molding production, it can not only meet the need to produce multiple different products in a single injection, but also allow for selective production by controlling the opening and closing of the shut-off valve 400, thus meeting different production requirements. In summary, the mold protected by this application can meet the injection molding needs of various different products according to requirements, and can also achieve the production of multiple different products in a single injection, which can effectively improve the production efficiency of enterprises.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0052] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0053] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-cavity injection mold, characterized in that, include: The product rack consists of a fixed mold (100), a movable mold (300), and a product rack (200). After the movable mold (300) and the fixed mold (100) are closed, a receiving cavity for accommodating the product rack (200) is formed between the fixed mold (100) and the movable mold (300). The product rack (200) is provided with several different product positions. When the product rack (200) is housed in the receiving cavity, the several different product positions form different product cavities with the fixed mold (100) and the moving mold (300). The product rack (200) includes a main body (210) and a flow channel (250). The main body (210) has several different product positions, and the flow channel (250) is connected to several different product positions respectively.

2. The multi-cavity injection mold according to claim 1, characterized in that: Several different product positions include product position A (220) and product position B (230), both of which are disposed on the main body (210) and are connected to the main body (210) through the flow channel (250).

3. The multi-cavity injection mold according to claim 2, characterized in that: Product position A (220) and product position B (230) are respectively provided in 3-5 units in the main body (210).

4. The multi-cavity injection mold according to claim 3, characterized in that: The product position also includes product position C(240); The product position C (240) is located at the edge of the main body (210).

5. The multi-cavity injection mold according to claim 4, characterized in that: The main body (210) is hollow inside; the flow channel (250) includes flow channel A (2501), flow channel B (2502) and flow channel C (2503), one end of flow channel A (2501), flow channel B (2502) and flow channel C (2503) are respectively connected to the main body (210), and the other end converges in the middle of the main body (210) and is interconnected.

6. The multi-cavity injection mold according to claim 5, characterized in that: The product position A (220) and product position B (230) are connected to each of the flow channels A (2501), B (2502) and C (2503); one end of each flow channel (250) is connected to the product position C (240), and the other end is connected to the product position A (220) and the product position B (230).

7. The multi-cavity injection mold according to claim 5, characterized in that: Each of the flow channels A (2501), B (2502), and C (2503) is provided with an injection hole (260) and a shut-off valve (400); the shut-off valve (400) is disposed between the injection hole (260) and the product position A (220) and the product position B (230) to restrict the flow of injection molding compound through the flow channel (250) to the product position A (220) and the product position B (230).

8. The multi-cavity injection mold according to any one of claims 4-7, characterized in that: The fixed mold (100) includes a fixed mold insert A (110) and a fixed mold insert B (120), wherein the fixed mold insert B (120) is disposed in the middle of the fixed mold insert A (110); The moving mold (300) includes a moving mold insert A (310) and a moving mold insert B (320), wherein the moving mold insert B (320) is disposed in the middle of the moving mold insert A (310); After the fixed mold (100) and the moving mold (300) are closed, a cavity is formed between the fixed mold insert A (110) and the moving mold insert A (310) to accommodate the product position C (240); a cavity is formed between the fixed mold insert B (120) and the moving mold insert B (320) to accommodate the product position A (220) and the product position B (230).

9. The multi-cavity injection mold according to claim 7, characterized in that: The moving mold (300) is provided with a glue injection position (3201) that communicates with the glue injection hole (260).

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