Forming die for lower shell of controller

By combining the injection molding mechanism, the pushing mechanism, and the venting mechanism, the problem of material backflow during injection molding of the lower housing mold of the controller was solved, enabling stable molding and efficient production of multiple products.

CN223545683UActive Publication Date: 2025-11-14QINDIAN (XIAMEN) MOLD TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423193037.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-11-14
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

The existing controller lower shell mold is prone to backflow of rubber material during injection molding, which affects the appearance of the product and has low production efficiency, making it difficult to mold multiple products in a single operation.

Method used

The design employs a combination of injection molding mechanism, pushing mechanism, and venting mechanism, along with an S-shaped injection tube, evenly distributed ejector pins, and molding grooves of varying depths, to ensure injection uniformity and demolding stability.

Benefits of technology

It achieves precise uniformity and stability in the injection molding process, improves production efficiency, and ensures the molding quality and safety of products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forming mold for a lower shell of a controller, which comprises a lower mold, an upper mold, an upper forming plate, an injection molding mechanism, a pushing mechanism and an exhaust mechanism, the injection molding mechanism, the pushing mechanism and the exhaust mechanism are arranged between the lower mold and the upper mold, the injection molding mechanism comprises an injection molding channel, an injection molding pipe and a shunt pipe, the injection molding channel is arranged at the lower end of the injection molding pipe, and the shunt pipe is arranged at the lower end of the injection molding pipe. The injection molding pipe is located in the middle of the injection molding channel, the flow dividing pipes are installed on the two opposite sides of the injection molding pipe, the pushing mechanism comprises a plurality of jacking columns which are evenly distributed, and the exhaust mechanism comprises a plurality of forming grooves which are evenly distributed. The depths of the plurality of forming grooves are different; according to the utility model, under the combined use of the injection molding mechanism, the pushing mechanism and the exhaust mechanism, the accuracy and stability of the device during molding use are ensured, and under the fixed-point guide of the shunt pipe, the accuracy and uniformity of injection molding points in the device are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of controller manufacturing technology, and in particular to a molding die for a controller lower shell. Background Technology

[0002] A controller is a master control device that controls the starting, speed regulation, braking, and reversing of a motor by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit according to a predetermined sequence.

[0003] The controller housing typically has multiple wiring harnesses and component mounting support points inside. Therefore, using injection molds can eliminate the tedious secondary processing steps. However, because the specifications of the support points are too complicated, it is easy to cause backflow of the rubber material during injection molding, which affects the aesthetics of the product. In addition, existing molds generally allow for sequential injection molding of individual products, which limits the efficiency of mold production.

[0004] Therefore, we provide a molding die for the lower housing of a controller. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a molding die for the lower shell of a controller, achieving uniform and stable material injection and a large quantity of material produced in a single molding process.

[0006] In view of this, the present invention provides a molding die for a controller lower shell, including a lower die, an upper die, an upper molding plate, and an injection molding mechanism, a pushing mechanism, and an exhaust mechanism installed between the lower die and the upper die.

[0007] The injection molding mechanism includes an injection channel, an injection tube, and a distribution pipe. The injection channel is installed at the lower end of the injection tube, and the injection tube is located in the middle of the injection channel. The distribution pipes are installed on opposite sides of the injection tube.

[0008] The pushing mechanism includes a number of top columns, which are evenly distributed.

[0009] The exhaust mechanism includes a plurality of forming grooves, and the depths of the plurality of forming grooves are not uniform.

[0010] Preferably, at least two directional flow pipes are installed on the lower surface of the diversion pipe, and the directional flow pipes are located in relative positions, and the injection-molded pipe is generally S-shaped.

[0011] Preferably, an upper forming plate is installed above the lower mold, and a forming shell is provided below the upper forming plate. A plurality of inner forming blocks are installed inside the forming shell, and the inner forming blocks are used for forming support of the forming shell.

[0012] Preferably, there are several inner forming blocks, and the forming groove is formed between two adjacent inner forming blocks.

[0013] Preferably, the top post is slidably inserted into a portion of the inner forming block, and the top posts are evenly distributed.

[0014] Preferably, the inner wall of the molded shell is provided with a plurality of support plates, which are inserted into the molding groove.

[0015] Preferably, a charging port is provided through the side of the molded housing, and a side molding assembly is inserted into the charging port.

[0016] Compared with the prior art, the present invention provides a molding die for a controller lower shell, which has the following advantages:

[0017] 1. This utility model, through the combined use of the injection molding mechanism, the pushing mechanism, and the venting mechanism, ensures the accuracy and stability of the device during molding, and, under the fixed-point guidance of the distribution pipe, ensures the accuracy and uniformity of the injection points within the device.

[0018] 2. With the uniform distribution of multiple top columns, this utility model ensures that the contact surface between the top columns and the product is uniform when the top columns push against the demolding process, thus ensuring safety and stability during the pushing process.

[0019] 3. With the flow guidance of multiple forming grooves of inconsistent depths, this utility model further ensures the safety of the device and further improves the accuracy and stability of the device during preparation and processing.

[0020] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a molding die for a controller lower shell proposed in this utility model;

[0022] Figure 2 This is a top view of the lower half of a molding die for a controller housing proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the overall structure of the molding die for the lower housing of a controller proposed in this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the connection method of the molding die for the lower shell of the controller proposed in this utility model.

[0025] In the diagram: 1. Lower mold; 2. Upper mold; 3. Upper molding plate; 4. Injection channel; 5. Injection tube; 6. Diverter tube; 601. Directional flow tube; 7. Molding shell; 701. Charging port; 702. Support plate; 8. Inner molding block; 801. Top pillar; 802. Molding groove; 9. Side molding assembly. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0028] Example 1: A molding die for a controller lower housing, such as Figures 1-4 As shown, it includes a lower mold 1, an upper mold 2, an upper forming plate 3, and an injection molding mechanism, a pushing mechanism, and an exhaust mechanism installed between the lower mold 1 and the upper mold 2.

[0029] The injection molding mechanism includes an injection channel 4, an injection tube 5, and a distribution pipe 6. The injection channel 4 is installed at the lower end of the injection tube 5, and the injection tube 5 is located in the middle of the injection channel 4. The distribution pipe 6 is installed on opposite sides of the injection tube 5.

[0030] The driving mechanism includes a number of top columns 801, which are evenly distributed.

[0031] The exhaust mechanism includes a forming groove 802, and there are several forming grooves 802, and the depths of the several forming grooves 802 are not the same.

[0032] Firstly, guided by the injection molding mechanism, it can simultaneously provide injection support to multiple molding spaces. With the support of the venting mechanism, the hot air generated during operation has room to circulate, preventing gas from impacting the material. The fixed-point pushing of the pushing mechanism ensures the uniformity and reliability of the demolding push on the molded product. Thus, the combined use of the injection molding mechanism, pushing mechanism, and venting mechanism ensures the accuracy and stability of the device during molding. Furthermore, the flow guidance of the material in the injection channel 4 via the injection pipe 5, and the fixed-point guidance of the diversion pipe 6, ensures the precision and uniformity of the injection points within the device. The uniform distribution of multiple ejector pins 801 ensures the uniformity of the contact surface between the ejector pins 801 and the product during demolding, guaranteeing safe and stable pushing. Finally, the flow guidance of multiple molding grooves 802 with varying depths further ensures the safety of the device and improves its precision and stability during manufacturing and processing.

[0033] like Figures 1-4 As shown, at least two directional flow pipes 601 are installed on the lower surface of the diversion pipe 6, and the directional flow pipes 601 are located in opposite positions, and the injection-molded pipe 5 is generally S-shaped.

[0034] By positioning and guiding the two directional flow tubes 601, the accuracy and precision of the material flow are ensured. By setting the outlet of the directional flow tube 601 in the front half of the product, the impact of the material flow caused by the product's own specifications can be prevented, thus ensuring the stability of the front half during injection molding.

[0035] like Figures 1-4 As shown, an upper forming plate 3 is installed above the lower mold 1, and a forming shell 7 is provided below the upper forming plate 3. Several inner forming blocks 8 are installed inside the forming shell 7, and the inner forming blocks 8 are used for forming support of the forming shell 7.

[0036] Under the combined positioning constraint of the upper forming plate 3 and multiple inner forming blocks 8, the stability of the inner and outer forming of the forming shell 7 is ensured, thereby ensuring the stability of its overall forming.

[0037] Example 2: A molding die for a controller lower housing, such as Figures 1-4 As shown, there are several inner forming blocks 8, and forming grooves 802 are formed between two adjacent inner forming blocks 8.

[0038] The top post 801 is slidably inserted into part of the inner forming block 8, and the top post 801 is evenly distributed.

[0039] When multiple internal forming blocks 8 are used in combination, while ensuring the stability of the forming support of the device, a forced support effect is provided for the flow of the forming groove 802, and the angle limit is improved for the movement of the top column 801, ensuring the stability and reliability of its connection.

[0040] like Figures 1-4 As shown, the inner wall of the molded shell 7 is provided with several support plates 702, and the support plates 702 are inserted into the molding groove 802.

[0041] Furthermore, a charging port 701 is provided through the side of the molded housing 7, and a side molding assembly 9 is inserted into the charging port 701.

[0042] Supported by multiple molding grooves 802, the molding stability of the support plate 702 inside the molding shell 7 is ensured, and the molding stability of the charging port 701 on the molding shell 7 is ensured by the positioning restriction of the side molding group 9, thereby ensuring the safety and stability of the device in molding the molding shell 7.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A molding die for a controller lower housing, comprising a lower die (1), an upper die (2), an upper molding plate (3), and an injection molding mechanism, a pushing mechanism, and an exhaust mechanism installed between the lower die (1) and the upper die (2), characterized in that: The injection molding mechanism includes an injection channel (4), an injection tube (5), and a distribution pipe (6). The injection channel (4) is installed at the lower end of the injection tube (5), and the injection tube (5) is located in the middle of the injection channel (4). The distribution pipe (6) is installed on opposite sides of the injection tube (5). The pushing mechanism includes a top column (801), and there are a plurality of top columns (801), which are evenly distributed. The exhaust mechanism includes a forming groove (802), and there are several forming grooves (802), and the depths of the several forming grooves (802) are not the same.

2. The molding die for a controller lower housing according to claim 1, characterized in that, At least two directional flow pipes (601) are installed on the lower surface of the diversion pipe (6), and the directional flow pipes (601) are located in opposite positions, and the injection pipe (5) is generally S-shaped.

3. The molding die for a controller lower housing according to claim 1, characterized in that, An upper forming plate (3) is installed above the lower mold (1), and a forming shell (7) is provided below the upper forming plate (3). Several inner forming blocks (8) are installed inside the forming shell (7), and the inner forming blocks (8) are used for forming support of the forming shell (7).

4. The molding die for a controller lower housing according to claim 3, characterized in that, There are a plurality of inner forming blocks (8), and the forming groove (802) is formed between two adjacent inner forming blocks (8).

5. A molding die for a controller lower housing according to claim 4, characterized in that, The top post (801) is slidably inserted into part of the inner forming block (8), and the top post (801) is evenly distributed.

6. The molding die for a controller lower housing according to claim 3, characterized in that, The inner wall of the molded shell (7) is provided with a plurality of support plates (702), and the support plates (702) are inserted into the molding groove (802).

7. A molding die for a controller lower housing according to claim 3, characterized in that, Furthermore, a charging port (701) is provided through the side of the molded housing (7), and a side molding assembly (9) is inserted into the charging port (701).