Injection molding mold for plastic box

Abstract

The utility model belongs to the technical field of plastic molds, and particularly relates to a plastic box injection molding mold which comprises a lower mold, a middle mold and an upper mold, and the middle mold is arranged between the lower molds. The upper mold is arranged above the middle mold, a plurality of injection molding assemblies are arranged on the side face of the lower mold, and the injection molding assemblies penetrate through the lower mold and are communicated with the middle mold. And a forming cavity is formed in the middle mold and communicates with the injection molding assembly. The upper die is provided with a forming block which is arranged in the forming cavity. The plastic box injection molding mold comprises the lower mold body, the middle mold body and the upper mold body, a hot melt material enters the middle mold body through the injection molding head and the injection molding pipe from the injection molding opening and flows into the molding cavity, the hot melt material in the molding cavity is extruded and molded through the molding block of the upper mold body, and the hot melt material is cooled and molded in the molding cavity. The three injection molding openings can be used for injection molding of materials at the same time, the injection molding efficiency is improved, the plastic box injection molding mold is simpler in structure, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic molds, in particular to an injection molding mold for a plastic box. Background Art

[0002] Plastic boxes have the characteristics of increasing user experience, permanent and durable packaging, moisture-proof, waterproof, high toughness, strong transportation safety performance, and improving product grade. Injection molds generally refer to injection molding, which is also called injection molding. It is an injection and molding method. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product sizes, and easy product updates.

[0003] The existing plastic box injection molding mold uses one injection port to inject materials into the molding cavity to mold the product, resulting in low product molding efficiency. In addition, the existing plastic box injection molding mold has a complex structure and high manufacturing cost. Utility Model Content

[0004] The utility model aims to provide a plastic box injection molding die, aiming to solve the technical problems of low product molding efficiency and high manufacturing cost in the prior art.

[0005] To achieve the above-mentioned purpose, the plastic box injection molding mold provided by the embodiment of the utility model includes a lower mold, a middle mold and an upper mold, and the lower mold, the middle mold and the upper mold are arranged in sequence from bottom to top, the lower mold is arranged at the bottom side of the middle mold, and the middle mold is arranged between the lower mold and the lower mold; the upper mold is arranged above the middle mold, and a plurality of injection molding components are arranged on the side of the lower mold, and the injection molding components pass through the lower mold and are connected with the middle mold; the middle mold is provided with a molding cavity, and the molding cavity is connected with the injection molding components; the upper mold is provided with a molding block, and the molding block is arranged in the molding cavity.

[0006] As an optional solution of the utility model, there are three injection molding components, all of which are arranged on the bottom side of the lower mold, one of which is arranged in the middle of the lower mold, and the other two are arranged at the corners of the lower mold and are arranged diagonally, and the three injection molding components are all connected to the molding cavity.

[0007] As an optional solution of the utility model, the injection molding assembly includes an injection molding tube, an injection molding head and a flange. The injection molding tube is threadedly connected to the lower mold, the injection molding tube passes through the lower mold and is connected to the middle mold. The injection molding head is arranged at one end of the injection molding tube, and the flange is fixedly connected to the outside of the injection molding tube and is fixedly connected to the lower mold.

[0008] As an optional solution of the utility model, the injection head is arranged in a C shape and is integrally formed with the injection tube, and an injection port is provided at one end of the injection head.

[0009] As an optional solution of the present invention, the lower mold is provided with a positioning groove, the positioning groove matches the shape of the middle mold, and the middle mold is installed in the positioning groove.

[0010] As an optional solution of the present invention, the molding block matches the molding cavity, and the molding block is arranged in the molding cavity.

[0011] As an optional solution of the present invention, a support seat is provided on the bottom side of the lower mold, and two support seats are provided, both of which are fixedly connected to the lower mold, and the two support seats are arranged in parallel and opposite to each other.

[0012] The above one or more technical solutions in the plastic box injection molding mold provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] The plastic box injection molding die provided in the present application comprises a lower die, a middle die and an upper die. The hot melt material enters the middle die from the injection port through the injection head and the injection tube and flows into the molding cavity. The molding block of the upper die extrude and mold the hot melt material in the molding cavity. The hot melt material is cooled and molded in the molding cavity. By setting three injection molding components, three injection ports can inject materials at the same time, thereby improving the injection molding efficiency. The plastic box injection molding die provided in the present application has a more streamlined structure and reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 A schematic structural diagram of a plastic box injection molding die provided in an embodiment of the utility model.

[0016] Figure 2 A side view of a plastic box injection molding mold provided by an embodiment of the utility model.

[0017] Figure 3 for Figure 2 Section view along AA.

[0018] Figure 4 An exploded view of a plastic box injection molding die provided in an embodiment of the utility model.

[0019] Among them, the reference numerals in the figure are:

[0020] 1. Lower mold; 2. Middle mold; 3. Upper mold; 4. Injection molding components;

[0021] 11. Support seat;

[0022] 21. Molding cavity;

[0023] 31. Molding block;

[0024] 41. Injection molding tube; 42. Injection molding head; 43. Flange; 44. Injection molding port. DETAILED DESCRIPTION

[0025] 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 embodiments of the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] 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 embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0029] In one embodiment of the present invention, Figures 1 to 4 As shown, a plastic box injection molding mold is provided, including a lower mold 1, a middle mold 2 and an upper mold 3. The lower mold 1, the middle mold 2 and the upper mold 3 are arranged in sequence from bottom to top, the lower mold 1 is arranged at the bottom side of the middle mold 2, and the middle mold 2 is arranged between the lower mold 1 and the lower mold 1; the upper mold 3 is arranged above the middle mold 2, and a plurality of injection molding components 4 are arranged on the side of the lower mold 1, and the injection molding components 4 pass through the lower mold 1 and are connected to the middle mold 2; the middle mold 2 is provided with a molding cavity 21, and the molding cavity 21 is connected to the injection molding components 4; the upper mold 3 is provided with a molding block 31, and the molding block 31 is arranged in the molding cavity 21. Further, the molding block 31 matches the molding cavity 21, and the molding block 31 is arranged in the molding cavity 21, and the molding block 31 is used to extrude and mold the material in the molding cavity 21. The plastic box injection molding die provided by the present application, the hot melt material enters the middle mold 2 from the injection port 44 through the injection head 42 and the injection tube 41, and flows into the molding cavity 21, the molding block 31 of the upper mold 3 extrude and mold the hot melt material in the molding cavity 21, and the hot melt material is cooled and molded in the molding cavity 21. By setting three injection molding components 4, the three injection ports 44 can inject materials at the same time, thereby improving the injection molding efficiency. The plastic box injection molding die provided by the present application has a more streamlined structure and reduces the manufacturing cost.

[0030] In another embodiment of the utility model, the plastic box injection molding mold is provided with three injection molding components 4, all of which are arranged on the bottom side of the lower mold 1, one of the injection molding components 4 is arranged in the middle of the lower mold 1, and the other two injection molding components 4 are arranged at the corners of the lower mold 1 and are arranged diagonally, and the three injection molding components 4 are all connected to the molding cavity 21.

[0031] In another embodiment of the utility model, the injection molding assembly 4 of the plastic box injection molding mold includes an injection molding tube 41, an injection molding head 42 and a flange 43. The injection molding tube 41 is threadedly connected to the lower mold 1, and the injection molding tube 41 passes through the lower mold 1 and is connected to the middle mold 2. The injection molding head 42 is arranged at one end of the injection molding tube 41, and the flange 43 is fixedly connected to the outside of the injection molding tube 41 and is fixedly connected to the lower mold 1. The flange 43 is used to fix the injection molding tube 41 to the lower mold 1, and at the same time, the connection between the injection molding tube 41 and the lower mold 1 can be sealed. Further, the injection molding head 42 is arranged in a C shape and is integrally formed with the injection molding tube 41, and an injection molding port 44 is provided at one end of the injection molding head 42. The hot melt material enters the injection molding head 42 and the injection molding tube 41 from the injection molding port 44, and enters the molding cavity 21 to cool and form.

[0032] In another embodiment of the utility model, the lower mold 1 of the plastic box injection molding mold is provided with a positioning groove, the positioning groove matches the shape of the middle mold 2, the positioning groove is used to install the middle mold 2, and the middle mold 2 is installed in the positioning groove. Further, a support seat 11 is provided on the bottom side of the lower mold 1, and two support seats 11 are provided, both fixedly connected to the lower mold 1, and the two support seats 11 are arranged parallel to each other, and the support seats 11 are used to support the lower mold 1.

[0033] The plastic box injection molding die provided by the present application, the hot melt material enters the middle mold 2 from the injection port 44 through the injection head 42 and the injection tube 41, and flows into the molding cavity 21, the molding block 31 of the upper mold 3 extrude and mold the hot melt material in the molding cavity 21, and the hot melt material is cooled and molded in the molding cavity 21. By setting three injection molding components 4, the three injection ports 44 can inject materials at the same time, thereby improving the injection molding efficiency. The plastic box injection molding die provided by the present application has a more streamlined structure and reduces the manufacturing cost.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic box injection molding mold, characterized in that: It includes a lower mold, a middle mold and an upper mold, which are arranged in sequence from bottom to top. The lower mold is arranged at the bottom side of the middle mold, and the middle mold is arranged between the lower mold and the lower mold; the upper mold is arranged above the middle mold, and a plurality of injection molding components are arranged on the side of the lower mold, and the injection molding components pass through the lower mold and are connected with the middle mold; the middle mold is provided with a molding cavity, and the molding cavity is connected with the injection molding components; the upper mold is provided with a molding block, and the molding block is arranged in the molding cavity.

2. A plastic box injection molding mold according to claim 1, characterized in that: There are three injection molding components, all of which are arranged on the bottom side of the lower mold. One of the injection molding components is arranged in the middle of the lower mold, and the other two injection molding components are arranged at the corners of the lower mold and are arranged diagonally. The three injection molding components are all connected to the molding cavity.

3. A plastic box injection molding mold according to claim 1, characterized in that: The injection molding assembly includes an injection molding tube, an injection molding head and a flange. The injection molding tube is threadedly connected to the lower mold, and the injection molding tube passes through the lower mold and is connected to the middle mold. The injection molding head is arranged at one end of the injection molding tube, and the flange is fixedly connected to the outside of the injection molding tube and is fixedly connected to the lower mold.

4. A plastic box injection molding mold according to claim 3, characterized in that: The injection molding head is arranged in a C shape and is integrally formed with the injection molding tube. An injection molding port is arranged at one end of the injection molding head.

5. A plastic box injection molding mold according to claim 1, characterized in that: The lower mold is provided with a positioning groove, the positioning groove matches the shape of the middle mold, and the middle mold is installed in the positioning groove.

6. A plastic box injection molding mold according to claim 1, characterized in that: The forming block matches the forming cavity, and the forming block is arranged in the forming cavity.

7. A plastic box injection molding mold according to claim 1, characterized in that: A support seat is provided at the bottom side of the lower mold, and two support seats are provided, both of which are fixedly connected to the lower mold, and the two support seats are arranged in parallel and opposite to each other.

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