Injection mold with paper box body

Abstract

The utility model relates to the technical field of storage box injection molding devices, and provides an injection mold with a paper box body, which comprises a fixed mold assembly, a movable mold assembly and a movable mold assembly, the movable mold assembly is movably matched with the fixed mold assembly, a cavity is formed in the movable mold assembly, and a profiling part is arranged at the end of the cavity; the ejection assembly is provided with an air blowing piece, and the air blowing piece is arranged on the movable mold assembly and is arranged in the cavity; and the pushing piece is movably arranged on the fixed mold assembly and arranged on the outer side of the cavity block in a sleeving manner. Compared with the prior art, the storage box has the advantages that one end of the paper box body is integrated into the forming cavity by embedding the paper box body into the forming cavity and utilizing an integrated injection molding method, so that the production process of the storage box is simplified, the production efficiency is improved, and the manufacturing quality of the storage box is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding devices for storage boxes, in particular to an injection molding mold with a paper box body. Background Art

[0002] like Figure 1 A storage box structure is shown, which is composed of a paper box body 1 and a plastic end 2, wherein the plastic end 2 is installed at one end of the opening of the paper box body 1. When manufacturing such storage boxes, gluing or snap connection is usually used to complete the assembly. However, these two assembly methods not only have complicated process flows, but also lead to a significant increase in production costs. In particular, when using the gluing method, if the glue accidentally overflows, it may adhere to the paper box body 1, which not only affects the appearance, but also may cause the entire storage box to be unusable, thereby increasing the scrap rate. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an injection mold with a paper box body in view of the current status of the prior art.

[0004] The utility model solves the above technical problems by adopting the following technical solutions: an injection mold with a paper box body is provided, comprising: a fixed mold component on which a cavity block is fixed;

[0005] A movable mold assembly is movably matched with the fixed mold assembly, the movable mold assembly is provided with a cavity adapted to the cavity block, the paper box body is placed in the cavity and when the movable mold assembly is fitted with the fixed mold assembly, the cavity block extends into the interior of the paper box body to fix the paper box body, and a contoured portion is provided at the end of the cavity;

[0006] The ejector assembly comprises: a blowing member, which is arranged on the movable mold assembly and placed in the cavity, and the paper box body can be pushed by the gas blown by the blowing member after the movable mold assembly is separated from the fixed mold assembly; a pushing member, which is movably arranged on the fixed mold assembly and sleeved on the outer side of the cavity block, and a molding cavity is formed between the pushing member, the profiling part and the cavity block, and the end of the paper box body extends into the molding cavity;

[0007] The plastic end formed in the molding cavity can be separated from the molding cavity by the push of the pushing member after the movable mold component is separated from the fixed mold component.

[0008] In the above-mentioned injection mold with a paper box body, five blowing pieces are provided, four of which are arranged in a rectangular shape, and another blowing piece is arranged at the center of the rectangle.

[0009] In the above-mentioned injection mold with a paper box body, the blowing piece is a columnar structure, and a channel for gas circulation is provided on the movable mold assembly. One end of the blowing piece away from the fixed mold assembly is connected to the channel, and the other end is evenly distributed with a plurality of air holes, and the plurality of air holes are used to evenly introduce the gas in the channel into the cavity.

[0010] In the above-mentioned injection mold with a paper box body, the pushing member includes a first cavity push block and a second cavity push block that are movably abutted against each other, the upper end surface of the first cavity push block forms the lower mold surface of the molding cavity, and is used to push the plastic end molded in the molding cavity away from the cavity block, and the second cavity push block forms the side wall of the molding cavity toward the side wall of the cavity block and is inclined, and is used to push the plastic end molded in the molding cavity away from the first cavity push block.

[0011] In the above-mentioned injection mold with a paper box body, a first driving member and a second driving member are provided on the fixed mold assembly, the output end of the first driving member is connected to the first cavity push block, and the output end of the second driving member is connected to the second cavity push block.

[0012] In the above-mentioned injection mold with a paper box body, the wall thickness of the paper box body is greater than or equal to 0.8 mm.

[0013] Compared with the prior art, the advantage of the present invention is that by embedding the paper box body into the molding cavity and utilizing an integrated injection molding method, one end of the paper box body is integrated into the molding cavity, thereby simplifying the production process of the storage box, improving production efficiency, and effectively ensuring the manufacturing quality of the storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional picture of a storage box;

[0015] Figure 2 It is a three-dimensional diagram of this scheme;

[0016] Figure 3 This is the floor plan of this scheme;

[0017] Figure 4 yes Figure 3 Sectional view along AA direction;

[0018] Figure 5 yes Figure 3 Cross-sectional view along the BB direction;

[0019] Figure 6 It is a three-dimensional diagram of the fixed mold assembly;

[0020] Figure 7 It is a three-dimensional view of the ejector assembly;

[0021] Figure 8It is a three-dimensional diagram of the movable mold assembly.

[0022] In the figure, 1, paper box body; 2, plastic end; 3, fixed mold assembly; 4, cavity block; 5, movable mold assembly; 6, cavity; 7, ejector assembly; 8, blowing member; 9, pushing member; 10, air hole; 11, first cavity push block; 12, second cavity push block; 13, first driving member; 14, second driving member; 15, contour-matching part. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] An injection mold with a carton body, a fixed mold assembly 3, on which a cavity block 4 is fixed; a movable mold assembly 5, which is movably matched with the fixed mold assembly 3, and a cavity 6 adapted to the cavity block 4 is provided on the movable mold assembly 5. The carton body 1 is placed in the cavity 6 and when the movable mold assembly 5 and the fixed mold assembly 3 are attached, the cavity block 4 extends into the interior of the carton body 1 to fix the carton body 1, and a profiling portion 15 is provided at the end of the cavity 6; an ejection assembly 7, which has: a blowing piece 8, the blowing piece 8 is arranged on the movable mold assembly 5, and the cavity 6 is arranged on the movable mold assembly 5. The mold assembly 5 is placed on the cavity 6, and the paper box body 1 can be pushed by the gas blown out by the blowing member 8 after the movable mold assembly 5 is separated from the fixed mold assembly 3; the pushing member 9 is movably arranged on the fixed mold assembly 3 and sleeved on the outer side of the cavity block 4, and a molding cavity is formed between the pushing member 9, the profiling portion 15 and the cavity block 4, and the end of the paper box body 1 extends into the molding cavity; the plastic end 2 molded in the molding cavity can be separated from the molding cavity under the push of the pushing member 9 after the movable mold assembly 5 is separated from the fixed mold assembly 3.

[0025] Based on the above embodiments, an exemplary structure of this solution is as follows: Figures 2 to 8As shown, the fixed mold assembly 3 and the movable mold assembly 5 are respectively installed on the fixed part and the movable structure of the injection molding machine, and the movable mold assembly 5 is driven by the driving mechanism of the injection molding machine to move closer to or away from the fixed mold assembly 3, thereby realizing the closing or opening operation of the injection mold. When the movable mold assembly 5 is away from the fixed mold assembly 3, that is, after the injection mold is opened, the carton body 1 is placed in the cavity 6. Subsequently, the driving mechanism of the injection molding machine drives the movable mold assembly 5 to move toward the direction of the fixed mold assembly 3 to implement the closing operation of the mold. After closing the mold, the end of the carton body 1 is inserted into the molding cavity composed of the ejection assembly 7, the profiling portion 15 and the cavity block 4. Then, the injection molding machine injects the molten plastic into the molding cavity. In the process of the plastic cooling and solidifying into the plastic end 2, it is closely attached to the carton body 1 by its own viscosity, realizing the combination of the carton body 1 and the plastic end 2. When the mold is opened, the blowing member 8 is connected to the air source to blow air into the carton body 1 to ensure that it is separated from the movable mold assembly 5 smoothly to avoid damage to the carton body 1 due to adhesion. When the movable mold assembly 5 and the fixed mold assembly 3 are separated to a predetermined position, the ejector assembly 7 pushes the plastic end 2 out of the molding cavity, and the injection molding manufacturing process of the entire storage box is completed.

[0026] This solution simplifies the production process of the storage box, improves production efficiency, and effectively ensures the manufacturing quality of the storage box by embedding the paper box body 1 into the molding cavity and using an integrated injection molding method to integrate one end of the paper box body 1 into the molding cavity.

[0027] In this solution, five blowing members 8 are provided, four of which are arranged in a rectangular shape, and another blowing member 8 is provided at the center of the rectangle, so as to make the force on the paper box body 1 more uniform and less prone to damage.

[0028] Furthermore, the blowing piece 8 is a columnar structure, and a channel for gas circulation is provided on the movable mold assembly 5. One end of the blowing piece 8 away from the fixed mold assembly 3 is connected to the channel, and the other end is evenly distributed with multiple air holes 10. The multiple air holes 10 are used to evenly introduce the gas in the channel into the cavity 6.

[0029] The blowing element of the columnar structure is designed to facilitate the connection with the movable mold assembly 5. Preferably, multiple air holes 10 are evenly distributed in a ring shape. Such an arrangement can not only release the gas in the channel through multiple outlets, but also effectively disperse the pressure at the outlet, thereby avoiding damage to the paper box body 1 due to excessive gas blowing force.

[0030] The pushing member 9 includes a first cavity pushing block 11 and a second cavity pushing block 12 which are movable against each other. The upper end surface of the first cavity pushing block 11 forms the lower mold surface of the molding cavity, which is used to push the plastic end 2 molded in the molding cavity away from the cavity block 4. The second cavity pushing block 12 forms the side wall of the molding cavity toward the side wall of the cavity block 4 and is inclinedly arranged, which is used to push the plastic end 2 molded in the molding cavity away from the first cavity pushing block 11.

[0031] After the movable mold assembly 5 is separated from the fixed mold assembly 3, the first cavity push block 11 first drives the plastic end 2 in the molding cavity to separate from the cavity block 4, and then the second cavity push block 12 pushes it to separate from the first cavity push block 11. This secondary separation design aims to reduce the resistance when the storage box is demolded and ensure the storage box is demolded intact.

[0032] The fixed mold assembly 3 is provided with a first driving member 13 and a second driving member 14, the output end of the first driving member 13 is connected to the first cavity push block 11, and the output end of the second driving member 14 is connected to the second cavity push block 12. The first driving member 13 and the second driving member 14 are preferably oil cylinders. The setting of the first driving member 13 and the second driving member 14 is intended to realize the movement of the first cavity push block 11 and the second cavity push block 12 on the movable mold assembly 5, and the sequential movement of the first cavity push block 11 and the second cavity push block 12.

[0033] In order to prevent the carton body 1 from being easily damaged during the injection molding process, the wall thickness of the carton body 1 is greater than or equal to 0.8 mm.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the scope defined by the spirit of the present invention.

Claims

1. An injection mold with a paper box body, characterized in that: include: A fixed mold assembly, on which a cavity block is fixedly provided; A movable mold assembly is movably matched with the fixed mold assembly, the movable mold assembly is provided with a cavity adapted to the cavity block, the paper box body is placed in the cavity and when the movable mold assembly is fitted with the fixed mold assembly, the cavity block extends into the interior of the paper box body to fix the paper box body, and a contoured portion is provided at the end of the cavity; The ejector assembly comprises: a blowing member, which is arranged on the movable mold assembly and placed in the cavity, and the paper box body can be pushed by the gas blown by the blowing member after the movable mold assembly is separated from the fixed mold assembly; a pushing member, which is movably arranged on the fixed mold assembly and sleeved on the outer side of the cavity block, and a molding cavity is formed between the pushing member, the profiling part and the cavity block, and the end of the paper box body extends into the molding cavity; The plastic end formed in the molding cavity can be separated from the molding cavity by the push of the pushing member after the movable mold assembly is separated from the fixed mold assembly.

2. An injection mold with a paper box body as claimed in claim 1, characterized in that: There are five blowing members, four of which are arranged in a rectangular shape, and another blowing member is arranged at the center of the rectangle.

3. An injection mold with a paper box body as claimed in claim 1, characterized in that: The blowing piece is a columnar structure, and a channel for gas circulation is provided on the movable mold assembly. One end of the blowing piece away from the fixed mold assembly is connected to the channel, and the other end is evenly distributed with a plurality of air holes, and the plurality of air holes are used to evenly introduce the gas in the channel into the cavity.

4. An injection mold with a paper box body as claimed in claim 1, characterized in that: The pushing member includes a first cavity pushing block and a second cavity pushing block that are movably abutted against each other, the upper end surface of the first cavity pushing block forms the lower molding surface of the molding cavity, and is used to push the plastic end molded in the molding cavity away from the cavity block, and the second cavity pushing block forms the side wall of the molding cavity toward the side wall of the cavity block and is inclined, and is used to push the plastic end molded in the molding cavity away from the first cavity pushing block.

5. An injection mold with a paper box body as claimed in claim 4, characterized in that: The fixed mold assembly is provided with a first driving member and a second driving member, the output end of the first driving member is connected to the first cavity push block, and the output end of the second driving member is connected to the second cavity push block.

6. An injection mold with a paper box body as claimed in claim 1, characterized in that: The wall thickness of the paper box body is greater than or equal to 0.8 mm.

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