Injection mold for air conditioner indoor grille

Abstract

The utility model relates to the field of injection molds for air conditioner accessories, and in particular to an injection mold for an air conditioner inner unit mesh cover, comprising an upper mold base, a lower mold base, an upper mold core arranged on the upper mold base, and a lower mold core arranged on the lower mold base; a mold cavity for molding a mesh cover body is constructed between the upper mold core and the lower mold core, and an injection molding pipeline for injecting materials into the mold cavity is arranged on the upper mold base; the front area of ​​the mold cavity is used for injection molding the front panel of the mesh cover body, and a slow flow chamber connected to the middle of the front area of ​​the mold cavity is constructed on the mold surface of the upper mold core and the lower mold core, at least one injection molding pipeline is connected to the slow flow chamber, and an inlet cavity is formed between the slow flow chamber and the front area of ​​the mold cavity; the outlet end of the injection cavity is in a closed shape. This scheme can ensure that the injection molding material (fluid) flows slowly and steadily into the mold cavity, so that the flow mark does not spread, and no air marks are formed on the front panel of the mesh cover body, thereby ensuring product quality.

Description

Technical Field

[0001] The utility model relates to the field of injection molds for air conditioner accessories, in particular to an injection mold for a mesh cover of an air conditioner interior unit. Background Art

[0002] The air conditioner filter cover referred to in this case refers to a removable filter cover installed on the air conditioner's internal unit, which plays a great role in the operation of the air conditioner and can prevent dust and foreign matter from entering the air conditioner. Figure 3 The existing mesh cover body 50 shown has a whole front panel 51, which is a part of the mesh cover body and is integrally injection molded with the mesh cover body. The front panel has a smooth finish requirement, but during injection molding of the existing mold, the feed port directly hits the mold cavity, which flushes the material to the surface, causing air marks on the panel surface, thereby affecting product quality. Summary of the invention

[0003] In order to solve the above problems, the purpose of the utility model is to provide an injection mold for an air conditioner indoor unit mesh cover. In this solution, on the one hand, a slow flow chamber and an injection cavity are provided, and on the other hand, the outlet end of the injection cavity is in a closed shape; this can ensure that the injection material (fluid) flows slowly and smoothly into the mold cavity, prevent flow marks from spreading, and prevent air marks from forming on the front panel of the mesh cover body, thereby ensuring product quality.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] The injection mold of the air conditioner indoor unit mesh cover comprises an upper mold base, a lower mold base, an upper mold core arranged on the upper mold base, and a lower mold core arranged on the lower mold base; a mold cavity for molding the mesh cover body is constructed between the upper mold core and the lower mold core, and an injection pipe for injecting material into the mold cavity is arranged on the upper mold base; it is characterized in that: the front area of ​​the mold cavity is used for injection molding the front panel of the mesh cover body, a slow flow chamber connected to the middle part of the front area of ​​the mold cavity is constructed on the mold surface of the upper mold core and the lower mold core, at least one injection pipe is connected to the slow flow chamber, and an injection cavity is formed between the slow flow chamber and the front area of ​​the mold cavity; the outlet end of the injection cavity is in a closed shape.

[0006] The utility model adopts the above-mentioned technical solution, which relates to an injection mold for an air conditioner indoor unit mesh cover. When the upper mold core and the lower mold core in the injection mold are molded together, a mold cavity for molding the mesh cover body is formed between the two; in the mold-closed state, material is injected into the mold cavity through an injection pipe. On this basis, the present solution provides a slow-flow chamber connected to the middle of the front area of ​​the mold cavity on the mold-closing surface of the upper mold core and the lower mold core, and an injection cavity is formed between the slow-flow chamber and the front area of ​​the mold cavity. The injection pipe first injects the material into the slow-flow chamber, then flows from the slow-flow chamber to the injection cavity, and finally flows into the mold cavity through the injection cavity.

[0007] In this scheme, on the one hand, a slow flow chamber and an injection cavity are provided, and on the other hand, the outlet end of the injection cavity is closed; this ensures that the injection material (fluid) flows slowly and steadily into the mold cavity, prevents flow marks from spreading, and does not form air marks on the front panel of the mesh cover body, thereby ensuring product quality.

[0008] In a specific implementation scheme, the slow-flow chamber includes a plurality of linear cavities extending in different radial directions along the same center, and the injection pipe and the injection cavity are respectively connected to two different linear cavities and the two linear cavities are not in the same straight line. In the scheme here, the structure of the slow-flow chamber is such that after the injection molding material flows into the slow-flow chamber, it basically needs to fill the entire slow-flow chamber before it flows to the injection cavity, ensuring the slow-flow effect. The injection molding pipe and the injection cavity are respectively connected to two different linear cavities and the two linear cavities are not in the same straight line, which can avoid the injection molding pipe and the injection cavity being in the same straight line and causing a flow channel short circuit phenomenon, that is, the injection molding material flows directly from the injection molding pipe to the injection cavity.

[0009] In a specific implementation scheme, the cross section of the injection cavity is arc-shaped, and the inlet and outlet of the injection cavity are respectively located at the two ends of the arc; the diameter of the injection cavity gradually decreases from the inlet to the outlet. In this scheme, the cross section of the injection cavity is arc-shaped, which can gradually change the flow direction of the fluid and ease the fluid speed. From the inlet to the outlet, the diameter of the injection cavity gradually decreases, which can reduce the flow rate, prevent the flow marks from spreading, and prevent air marks from forming on the front panel of the mesh cover body, thereby ensuring product quality.

[0010] Preferably, the lower mold core has a convex strip protruding into the slow flow chamber of the upper mold core on the mold surface. Here, a boss is provided on the mold surface of the lower mold core to ensure that the material handle formed in the slow flow chamber and the injection cavity will not be misaligned during the demolding process.

[0011] Preferably, the lower mold core includes a lower mold core body, and a lower module assembly detachably connected to the lower mold core body, and the slow flow chamber is formed between the upper end surface of the lower module assembly and the upper mold core above it. The lower module assembly is connected to the lower mold core body as a detachable component, and can be optimized, improved and replaced, or replaced as a wearing part. In a specific solution, the lower module assembly includes two lower mold unit blocks, and the slow flow chamber is formed between the upper end surface of the two lower mold unit blocks after combination and the upper mold core above them, and an injection cavity connected to the slow flow chamber is formed between the two lower mold unit blocks. The two lower mold unit blocks are combined to form a slow flow chamber, so that the slow flow chamber can be conveniently set up, and the slow flow chamber can be conveniently disassembled, maintained or replaced.

[0012] Preferably, the upper mold base is provided with a plurality of injection pipes for injecting materials into the mold cavity, the plurality of injection pipes are connected to an injection distributor, and the center of the injection distributor is connected to the injection main pipe.

[0013] Preferably, the mold ejection mechanism is used to eject the product, and the material cutting mechanism is used to cut off the product from the slow-flow chamber and the material handle formed in the injection cavity. During the demolding process, the mold ejection mechanism ejects the product from the lower mold, and the material cutting mechanism cuts off the product from the material handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is an injection mold structure diagram.

[0015] Figure 2 Schematic diagram of the core structure of the injection mold.

[0016] Figure 3 This is an exploded view of the core structure of the injection mold.

[0017] Figure 4 It is a structural schematic diagram of the upper mold core.

[0018] Figure 5 It is a schematic diagram of the lower module assembly and the material handle structure.

[0019] Figure 6 This is a cross-sectional view of the core structure of the injection mold. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] like Figures 1 to 6 As shown, this embodiment relates to an injection mold for an air conditioner indoor unit grille, comprising an upper mold base 1, a lower mold base 2, a demoulding mechanism and a material cutting mechanism, an upper mold core 3 disposed on the upper mold base 1, and a lower mold core 4 disposed on the lower mold base 2. A mold cavity 500 for molding a grille body 50 is constructed between the upper mold core 3 and the lower mold core 4, and an injection molding pipe 61 for injecting material into the mold cavity 500 is disposed on the upper mold base 1. Figure 2 and 3 As shown, the upper mold base 1 is provided with a plurality of injection pipes 61 for injecting materials into the mold cavity 500, and the plurality of injection pipes 61 are connected to an injection distributor 62, and the center of the injection distributor 62 is connected to an injection main pipe 63. During the demolding process, the demolding mechanism ejects the product from the lower mold, and at the same time, the product and the material handle 52 are cut off by the cutting structure; the demolding mechanism and the cutting structure are relatively common in the mold field, and are not described in detail in this case.

[0026] In a further solution, the front area of ​​the mold cavity 500 is used for injection molding the front panel 51 of the mesh cover body 50, and a slow flow chamber 70 connected to the middle of the front area of ​​the mold cavity 500 is constructed on the mold surface of the upper mold core 3 and the lower mold core 4, and at least one injection pipe 61 is connected to the slow flow chamber 70, and an injection cavity 80 is formed between the slow flow chamber 70 and the front area of ​​the mold cavity 500. The outlet end of the injection cavity 80 is in a closed shape. When the upper mold core 3 and the lower mold core 4 in the injection mold are molded together, a mold cavity 500 for molding the mesh cover body 50 is formed between the two. In the mold-closing state, material is injected into the mold cavity 500 through the injection pipe 61. On this basis, in this solution, a slow flow chamber 70 connected to the middle of the front area of ​​the mold cavity 500 is provided on the mold surface of the upper mold core 3 and the lower mold core 4, and an injection cavity 80 is formed between the slow flow chamber 70 and the front area of ​​the mold cavity 500. The injection molding pipe 61 first injects the material into the slow flow chamber 70, and then flows from the slow flow chamber 70 to the injection chamber 80, and finally flows into the mold cavity 500 through the injection chamber 80. In this scheme, on the one hand, the slow flow chamber 70 and the injection chamber 80 are provided, and on the other hand, the outlet end of the injection chamber 80 is closed. In this way, the injection molding material (fluid) can be ensured to flow slowly and steadily into the mold cavity 500, so that the flow mark does not spread, and no air mark will be formed on the front panel 51 of the mesh cover body 50, thereby ensuring product quality.

[0027] In a specific embodiment, the slow-flow chamber 70 includes a plurality of linear cavities 71 extending in different radial directions along the same center, and the injection molding pipe 61 and the injection cavity 80 are respectively connected to two different linear cavities 71, and the two linear cavities 71 are not in the same straight line. In the scheme here, the structure of the slow-flow chamber 70 allows the injection molding material to flow into the slow-flow chamber 70, and basically needs to fill the entire slow-flow chamber 70 before it flows to the injection cavity 80, ensuring the slow-flow effect. The injection molding pipe 61 and the injection cavity 80 are respectively connected to two different linear cavities 71, and the two linear cavities 71 are not in the same straight line, which can avoid the injection molding pipe 61 and the injection cavity 80 being in the same straight line and causing the flow channel to short-circuit, that is, the injection molding material flows directly from the injection molding pipe 61 to the injection cavity 80. In a specific embodiment, the cross-section of the injection cavity 80 is arc-shaped, and the inlet and outlet ends of the injection cavity 80 are respectively at the two ends of the arc. From the inlet end to the outlet end, the caliber of the injection cavity 80 gradually decreases. In this solution, the cross section of the injection cavity 80 is arc-shaped, so that the flow direction of the fluid can be gradually changed and the fluid speed can be moderated. From the inlet end to the outlet end, the diameter of the injection cavity 80 gradually decreases, so that the flow rate can be reduced, the flow marks will not spread, and no air marks will be formed on the front panel 51 of the mesh cover body 50, thereby ensuring product quality.

[0028] like Figure 3 and 5As shown, the lower mold core 4 is provided with a convex strip 42 protruding into the slow flow chamber 70 of the upper mold core 3 on the mold surface. Here, the boss is provided on the mold surface of the lower mold core 4 to ensure that the material handle 52 formed in the slow flow chamber 70 and the injection cavity 80 will not be misaligned during the demolding process. Figure 3 and 5 As shown, the lower mold core 4 includes a lower mold core body, and a lower module assembly 41 detachably connected to the lower mold core body, and the slow flow chamber 70 is formed between the upper end surface of the lower module assembly 41 and the upper mold core 3 above it. The lower module assembly 41 is connected to the lower mold core body as a detachable component, and can be optimized, improved and replaced, or replaced as a consumable part. In a specific scheme, the lower module assembly 41 includes two lower mold unit blocks 411, and the slow flow chamber 70 is formed between the upper end surface of the two lower mold unit blocks 411 after combination and the upper mold core 3 above it, and an injection cavity 80 connected to the slow flow chamber 70 is formed between the two lower mold unit blocks 411. The two lower mold unit blocks 411 are combined to form the slow flow chamber 70, so that the slow flow chamber 70 can be conveniently set, and the slow flow chamber 70 can be conveniently disassembled, maintained or replaced.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. An injection mold for an air conditioner indoor unit grille, comprising an upper mold base (1), a lower mold base (2), an upper mold core (3) arranged on the upper mold base (1), and a lower mold core (4) arranged on the lower mold base (2); a mold cavity (500) for molding a grille body (50) is constructed between the upper mold core (3) and the lower mold core (4); an injection molding pipe (61) for injecting material into the mold cavity (500) is arranged on the upper mold base (1); the characteristics are: The front area of ​​the mold cavity (500) is used for injection molding the front panel (51) of the mesh cover body (50); a slow-flow chamber (70) connected to the middle of the front area of ​​the mold cavity (500) is constructed on the joint surface of the upper mold core (3) and the lower mold core (4); at least one injection pipe (61) is connected to the slow-flow chamber (70); an injection cavity (80) is formed between the slow-flow chamber (70) and the front area of ​​the mold cavity (500); and the outlet end of the injection cavity (80) is in a closed shape.

2. The injection mold for the air conditioner indoor unit grille according to claim 1, characterized in that: The slow flow chamber (70) comprises a plurality of linear cavities (71) extending in different radial directions along the same center, and the injection pipe (61) and the injection cavity (80) are respectively connected to two different linear cavities (71), and the two linear cavities (71) are not located on the same straight line.

3. The injection mold for the air conditioner indoor unit grille according to claim 1, characterized in that: The cross section of the injection cavity (80) is arc-shaped, and the inlet end and the outlet end of the injection cavity (80) are respectively located at two ends of the arc; and the diameter of the injection cavity (80) gradually decreases from the inlet end to the outlet end.

4. The injection mold for the air conditioner indoor unit grille according to claim 1, characterized in that: The lower mold core (4) is provided with a convex strip (42) on the mold surface thereof, which protrudes into the slow-flow chamber (70) of the upper mold core (3).

5. The injection mold for the air conditioner indoor unit grille according to claim 1, characterized in that: The lower mold core (4) comprises a lower mold core body and a lower module assembly (41) detachably connected to the lower mold core body, and the slow flow chamber (70) is formed between the upper end surface of the lower module assembly (41) and the upper mold core (3) above it.

6. The injection mold for the air conditioner indoor unit grille according to claim 5, characterized in that: The lower mold component (41) comprises two lower mold unit blocks (411), wherein the slow flow chamber (70) is formed between the upper end surfaces of the two lower mold unit blocks (411) after being combined and the upper mold core (3) above them, and an injection cavity (80) connected to the slow flow chamber (70) is formed between the two lower mold unit blocks (411).

7. The injection mold for the air conditioner indoor unit grille according to claim 1, characterized in that: The upper mold base (1) is provided with a plurality of injection pipes (61) for injecting materials into the mold cavity (500), the plurality of injection pipes (61) are connected to an injection distributor (62), and the center of the injection distributor (62) is connected to an injection main pipe (63).

8. The injection mold for the grille of the air conditioner interior unit according to claim 1, characterized in that: It also includes a demoulding mechanism for ejecting the product, and a cutting mechanism for cutting the product from the material handle (52) formed in the slow-flow chamber (70) and the injection cavity (80).

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