Injection mold for double-color cover

Abstract

The utility model relates to the technical field of injection molds, and particularly discloses an injection mold for a double-color cover, which comprises a mold body, an injection molding space for injection molding of a workpiece is arranged on the mold body, and an ejector rod is vertically connected in the mold body in a sliding manner. A power mechanism used for driving the ejector rod to slide downwards is arranged at the bottom of the mold body. After the first injection molding operation is completed, the power mechanism is used for driving the ejector rod to slide downwards, so that the downward sliding space of the ejector rod is consistent with the space needing the second injection molding, and after the power mechanism drives the ejector rod to slide downwards to the set height, the second injection molding operation can be carried out; therefore, the product does not need to be taken out for secondary injection molding operation, the practicability and the working efficiency of the injection mold are greatly improved, and the using effect is better.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for a two-color cap. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, molds are tools used to make shaped items. Two-color injection molding refers to the process of injecting two different materials into the same mold, thereby realizing the molding process of the injection-molded parts formed by two materials. Sometimes the two materials are different colors, and sometimes they are different in hardness, thereby improving the product's aesthetics and assembly performance.

[0003] In the prior art, there is a Chinese patent with application number 201921404884.1, authorization announcement number CN211221746U, entitled "A Two-Color Injection Mold". The above patent discloses a two-color injection mold, including a moving mold, a fixed mold, a slider, and a mounting base. The fixed mold is fixed on the mounting base, and the slider slides on the mounting base. The fixed mold is provided with a hard plastic gate, and the slider is provided with a soft plastic gate. An injection cavity is formed between the moving mold, the fixed mold, and the slider. The injection cavity includes a hard plastic cavity and a soft plastic cavity. A hydraulic cylinder is provided at the end of the mounting base near the slider, and a spring is provided at the end of the fixed mold near the slider. The slider's movement towards or away from the fixed mold is controlled by the hydraulic cylinder and the spring, respectively.

[0004] The two-color injection mold described in the aforementioned patent can avoid the difficulties in debonding or the separation of soft and hard plastics caused by excessive clamping force of the soft plastic, thus reducing mold manufacturing costs. However, it is known that two-color products typically require two injection molding processes. Existing injection molds can only perform single injection molding. Therefore, after the first injection molding, the product must be moved to a specific mold for a second injection, affecting the injection efficiency of the workpiece. Utility Model Content

[0005] The purpose of this invention is to provide an injection mold for a two-color cap to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for a two-color cap, comprising a mold body, wherein the mold body has an injection space for injection molding of the workpiece, a push rod is vertically slidably connected inside the mold body, and a power mechanism for driving the push rod to slide downward is provided at the bottom of the mold body.

[0007] Furthermore, the mold body has an adjustment space, and an adjustment plate is provided on the bottom of the push rod. The adjustment plate is vertically installed in the adjustment space, and the power mechanism drives the adjustment plate to slide vertically in the adjustment space.

[0008] Furthermore, the power mechanism includes a power rod mounted on the bottom of the adjustment plate, and the mold body is provided with a drive unit for driving the power rod to slide vertically.

[0009] Furthermore, the driving unit includes an adjusting block slidably connected to the mold body, the power rod is mounted on the adjusting block, and the mold body is provided with a driving part for driving the adjusting block to slide; a limiting member is also provided between the adjusting block and the mold body.

[0010] Furthermore, the limiting component includes a roller mounted on the mold body via a rotating shaft, and the adjusting block has a through groove. When the driving part drives the adjusting block to slide, the roller moves in the through groove. The adjusting block also has an inclined surface, which is connected to the through groove.

[0011] Furthermore, the driving unit is a cylinder, and the adjusting block is mounted on the cylinder output end via a connecting part.

[0012] Furthermore, the connecting part includes a trapezoidal groove formed on the adjusting block, and a trapezoidal block adapted to the trapezoidal groove is provided on the cylinder output end, and the trapezoidal block is engaged in the trapezoidal groove.

[0013] Furthermore, there are multiple push rods, each of which is mounted on an adjusting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this injection mold for a two-color cap, the power mechanism first drives the ejector pin to maintain a predetermined height. At this time, the ejector pin is located below the injection space, which can meet the first injection needs of the workpiece. After the first injection operation is completed, the power mechanism drives the ejector pin to slide downward so that the space where the ejector pin slides downward is consistent with the space required for the second injection. After the power mechanism drives the ejector pin to slide downward to the predetermined height, the second injection operation can be performed. Therefore, there is no need to remove the product for a second injection operation, which greatly improves the practicality and working efficiency of the injection mold and results in better performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the top rod installation method provided in an embodiment of the present utility model;

[0017] Figure 2 A schematic diagram of the power mechanism structure provided for an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Top rod; 2. Adjusting plate; 3. Power rod; 4. Adjustment space; 5. Adjusting block; 6. Roller; 7. Inclined surface; 8. Connecting part; 9. Drive part. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-2 This utility model provides a technical solution: an injection mold for a two-color cap, including a mold body, an injection space for injection molding workpieces is provided on the mold body, an ejector rod 1 is vertically slidably connected inside the mold body, and a power mechanism for driving the ejector rod 1 to slide downwards is provided on the bottom of the mold body.

[0021] Specifically, the injection mold for the two-color cap includes a mold body with an injection space for injection molding of the workpiece. The mold body also has an injection channel for the flow of adhesive. The injection channel is connected to the injection space for better injection molding. Inside the mold body, an ejector rod 1 is vertically slidably connected. The top of the ejector rod 1 is designed according to the working requirements to meet the injection needs of the workpiece. The bottom of the mold body has a power mechanism for driving the ejector rod 1 to slide downward. Therefore, when using this injection mold, the ejector pin 1 is first driven by the power mechanism to maintain a predetermined height. At this time, the ejector pin 1 is located below the injection space, which can meet the needs of the first injection of the workpiece. After the first injection operation is completed, the power mechanism is then used to drive the ejector pin 1 to slide downward so that the space where the ejector pin 1 slides downward is consistent with the space where the second injection is needed. After the power mechanism drives the ejector pin 1 to slide downward to the predetermined height, the second injection operation can be performed. Therefore, there is no need to remove the product and perform a second injection operation, which greatly improves the practicality and working efficiency of the injection mold and makes the use effect better.

[0022] In the embodiments provided by this utility model, an adjustment space 4 is provided on the mold body, and an adjustment plate 2 is provided on the bottom of the push rod 1. The adjustment plate 2 is vertically installed in the adjustment space 4, and the power mechanism drives the adjustment plate 2 to slide vertically in the adjustment space 4, so that the state of the push rod 1 can be adjusted according to the work needs, and the use effect is better.

[0023] In the embodiments provided by this utility model, the power mechanism includes a power rod 3 installed on the bottom of the adjusting plate 2. A driving unit for driving the power rod 3 to slide vertically is provided on the mold body. The driving unit includes an adjusting block 5 slidably connected to the mold body. The power rod 3 is installed on the adjusting block 5, and a driving part 9 for driving the adjusting block 5 to slide is provided on the mold body. A limiting component is also provided between the adjusting block 5 and the mold body. The limiting component includes a roller 6 installed on the mold body via a rotating shaft. A through groove is provided on the adjusting block 5. When the driving part 9 drives the adjusting block 5 to slide, the roller 6 moves within the through groove. An inclined surface 7 is also provided on the adjusting block 5, and the inclined surface 7 communicates with the through groove. Specifically, during use, after the first injection molding operation is completed, the driving part 9 drives the adjusting block 5 to slide. During the sliding process, the roller 6 and the inclined surface 7 cooperate to drive the adjusting block 5 to slide downwards, thereby driving the power rod 3 and the adjusting plate 2 to slide downwards, so that the ejector rod 1 slides downwards, thus enabling a secondary injection molding operation. Specifically, the angle of the inclined surface 7 is adapted to the sliding stroke of the adjusting plate 2 inside the adjusting space 4 to meet the working requirements.

[0024] In the embodiments provided by this utility model, the driving part 9 is a cylinder, and the adjusting block 5 is installed on the cylinder output end through the connecting part 8.

[0025] In the embodiments provided by this utility model, the connecting part 8 includes a trapezoidal groove formed on the adjusting block 5, and a trapezoidal block adapted to the trapezoidal groove is provided on the cylinder output end, and the trapezoidal block is engaged in the trapezoidal groove, so that the state of the adjusting block 5 can be adjusted.

[0026] In the embodiments provided by this utility model, there are multiple push rods 1, and each push rod 1 is installed on the adjusting plate 2 to further meet the working needs.

[0027] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold for a two-color cap, comprising a mold body, characterized in that: The mold body has an injection space for injection molding workpieces, and a push rod (1) is vertically slidably connected inside the mold body. A power mechanism for driving the push rod (1) to slide downward is provided on the bottom of the mold body. The mold body is provided with an adjustment space (4), and an adjustment plate (2) is provided on the bottom of the push rod (1). The adjustment plate (2) is vertically installed in the adjustment space (4), and the power mechanism drives the adjustment plate (2) to slide vertically in the adjustment space (4). The power mechanism includes a power rod (3) installed on the bottom of the adjustment plate (2), and the mold body is provided with a drive unit for driving the power rod (3) to slide vertically.

2. The injection mold for a two-color cap according to claim 1, characterized in that: The drive unit includes an adjustment block (5) slidably connected to the mold body, a power rod (3) mounted on the adjustment block (5), and a drive part (9) for driving the adjustment block (5) to slide on the mold body; a limit member is also provided between the adjustment block (5) and the mold body.

3. The injection mold for a two-color cap according to claim 2, characterized in that: The limiting component includes a roller (6) mounted on the mold body via a rotating shaft. The adjusting block (5) has a through groove. When the driving part (9) drives the adjusting block (5) to slide, the roller (6) moves in the through groove. The adjusting block (5) is also provided with an inclined surface (7), which is connected to the through groove.

4. The injection mold for a two-color cap according to claim 2, characterized in that: The drive unit (9) is a cylinder, and the adjustment block (5) is installed on the cylinder output end through the connecting part (8).

5. An injection mold for a two-color cap according to claim 4, characterized in that: The connecting part (8) includes a trapezoidal groove on the adjusting block (5), and a trapezoidal block adapted to the trapezoidal groove is provided on the cylinder output end, and the trapezoidal block is engaged in the trapezoidal groove.

6. The injection mold for a two-color cap according to claim 1, characterized in that: There are multiple top rods (1), and each top rod (1) is installed on the adjusting plate (2).

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