A remote controller shell mold structure

Abstract

The utility model discloses a kind of remote controller shell mould structure, it is related to injection mould technical field, including lower die holder, upper die holder, setting between the forming assembly of both and the stripping assembly for stripping, the forming assembly includes the shunt passage of communication with single inlet and extends to two forming grooves, to realize the production of one mould double hole, the stripping assembly includes base, hydraulic cylinder for driving top plate movement, and first ejector pin and second ejector pin installed on top plate, wherein the interior of the second ejector pin is provided with air hole for conveying airflow, to realize pneumatic auxiliary stripping. The utility model is provided with one out two forming structure, significantly improves production efficiency, and combines the stripping mode of pneumatic auxiliary and two-stage ejection synergistic effect, can effectively solve the problem that complex structure shell is easily damaged when stripping, ensures product quality, improves yield.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a remote control shell mold structure. Background Technology

[0002] Remote controls are widely used electronic consumer products in daily life. Their shells are usually mass-produced by injection molding. As a key process equipment for realizing this process, the quality of the injection mold's structural design directly affects the production efficiency and final quality of the product.

[0003] In the conventional production of remote control casings, to simplify the mold structure and reduce manufacturing difficulty, single-cavity molds are typically used, meaning that only one remote control casing component can be produced in a single injection molding cycle. For remote control products with huge market demand, this production method undoubtedly limits the production capacity per unit time, resulting in low overall production efficiency and making it difficult to meet the market demand for rapid delivery.

[0004] To improve production efficiency, the industry naturally seeks to adopt multi-cavity mold designs. However, remote control casings are not simple shells; their internal structure often includes thin-walled and complex features such as reinforcing ribs, screw pillars, and clips. This structural characteristic makes the plastic part prone to generating significant clamping force with the mold core after cooling. In multi-cavity molds, this problem is further amplified. Simple ejection mechanisms struggle to apply uniform and stable ejection force to the plastic part in each cavity during demolding, easily causing stress concentration at the ejector pin contact points. This leads to defects such as whitening, deformation, and even cracking, ultimately reducing the product yield.

[0005] Therefore, this utility model proposes a remote control shell mold structure to overcome the shortcomings of the prior art. Utility Model Content

[0006] The purpose of this application is to provide a remote control shell mold structure, which aims to improve the problems of low production efficiency due to the small number of products molded at one time, and the easy damage to the product due to uneven force during demolding in the prior art.

[0007] This application provides a remote control shell mold structure using the following technical solution:

[0008] A remote control housing mold structure includes: a lower mold base and an upper mold base; and a molding assembly disposed between the upper mold base and the lower mold base, and further includes a demolding assembly for demolding;

[0009] The molding component includes an inlet located at the top of the upper mold base, and a diversion channel communicating with the inlet and extending to two molding grooves.

[0010] Furthermore, the demolding assembly includes a base fixed below the lower mold base, a hydraulic cylinder vertically mounted on the base, a top plate fixedly connected to the output end of the hydraulic cylinder, and a first ejector pin and a second ejector pin mounted on the top plate. The second ejector pin has an air hole inside for conveying airflow. The demolding assembly also includes a fixing sleeve sleeved outside the first ejector pin. The fixing sleeve is vertically mounted on the top plate, and a spring is connected between the fixing sleeve and the first ejector pin.

[0011] Preferably, it also includes a first cooling water pipe and a second cooling water pipe, wherein the first cooling water pipe is embedded in the bottom of the upper mold base, and the second cooling water pipe is embedded in the lower mold core, the lower mold core being installed on the lower mold base and forming the bottom of the forming groove;

[0012] Preferably, it also includes a guide rod fixed on the parting surface of the upper mold base, and a guide sleeve formed on the parting surface of the lower mold base and slidingly engaged with the guide rod;

[0013] Preferably, a misalignment block is also installed on the parting surface between the upper mold base and the lower mold base;

[0014] Preferably, the base is provided with an air passage interface for connecting an external air pump;

[0015] Preferably, the two ends of the spring abut against the inner bottom of the fixing sleeve and the bottom flange of the first ejector pin, respectively;

[0016] Preferably, the hydraulic cylinder is fixed at the center of the base, and the output end of the hydraulic cylinder is fixedly connected upward to the center of the bottom surface of the top plate;

[0017] Preferably, both the first ejector pin and the second ejector pin pass through the top plate and are mounted vertically thereon.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. This utility model solves the problem of low production efficiency in the prior art where a single injection molding cycle of a remote control shell mold can only produce a single part, by setting a single inlet and a diversion channel connected to the inlet and extending to two molding grooves. It achieves the effect of producing two remote control shells simultaneously in a single molding cycle, thereby significantly improving production efficiency.

[0020] 2. This utility model achieves pneumatic assistance by setting a second ejector pin with internal air holes, and together with a structure composed of a first ejector pin, a fixed sleeve and a spring, it realizes two-stage ejection. This solves the problem that remote control shells are prone to sticking, deformation or ejection damage during demolding due to their complex structure in the prior art. It achieves the effect of first reducing the adhesion between the product and the mold by airflow, and then smoothly pushing the product out by the sequential ejection action, thereby ensuring the demolding quality of the product and improving the yield.

[0021] 3. This utility model achieves precision guidance by setting guide rods, guide sleeves, and misalignment blocks, and uses cooling water pipes arranged in the upper and lower mold bases for efficient cooling. This solves the problem in the prior art where insufficient mold closing accuracy or uneven cooling during high-speed production leads to unstable product dimensions or appearance defects. It ensures the alignment accuracy of the mold under high-frequency opening and closing, while quickly and evenly cooling and solidifying the molded product, thereby guaranteeing the final product's dimensional accuracy and appearance quality. Attached Figure Description

[0022] Figure 1 This is a perspective view of a remote control housing mold structure proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the interior of the upper mold base of a remote control shell mold structure proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the bottom of the upper mold base of a remote control shell mold structure proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the lower mold base of a remote control shell mold structure proposed in this utility model;

[0026] Figure 5 This is a schematic diagram showing the separation of the lower mold base and the base of a remote control shell mold structure proposed in this utility model;

[0027] Figure 6 This is a schematic diagram of a demolding component for a remote control housing mold structure proposed in this utility model;

[0028] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0029] Explanation of reference numerals in the attached drawings: 1. Upper mold base; 2. Lower mold base; 3. Base; 4. Molding assembly; 401. Inlet; 402. Diverting channel; 403. Molding groove; 404. First cooling water pipe; 405. Lower mold core; 406. Second cooling water pipe; 5. Guide rod; 6. Guide sleeve; 7. Misalignment block; 8. Demolding assembly; 801. Hydraulic cylinder; 802. Top plate; 803. Fixing sleeve; 804. First ejector pin; 805. Spring; 806. Second ejector pin; 807. Air pump. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will be described in further detail below.

[0031] A remote control housing mold structure, as shown in the reference Figures 1-7 The remote control housing mold structure includes a lower mold base 2 and an upper mold base 1 that can be opened and closed and fitted above the lower mold base 2. The lower mold base 2 is installed on the top of the base 3. A molding component 4 is defined between the upper mold base 1 and the lower mold base 2. The molding component 4 includes an inlet 401 opened on the top of the upper mold base 1 and a diversion channel 402 that communicates with the inlet 401 and extends to two molding grooves 403 respectively. The remote control housing mold structure also includes a demolding component 8. The demolding component 8 includes a base 3 fixed below the lower mold base 2, a hydraulic cylinder 801 vertically installed on the base 3, a top plate 802 fixedly connected to the output end of the hydraulic cylinder 801, a second ejector pin 806 vertically installed on the top plate 802, and an air hole for conveying airflow is opened inside the second ejector pin 806. The demolding component 8 also includes a fixed sleeve 803 vertically installed on the top plate 802, a first ejector pin 804 slidably inserted inside the fixed sleeve 803, and a spring 805 connected between the fixed sleeve 803 and the first ejector pin 804.

[0032] Specifically, the molding component 4 includes a feed port 401 located at the top of the upper mold base 1, and a diversion channel 402 connected to the feed port 401. The diversion channel 402 is located inside the upper mold base 1 and guides the molten material from the feed port 401 to two independent molding grooves 403. By simultaneously feeding material into the two molding grooves 403 through a single feed port 401 and the diversion channel 402, two remote control shells can be molded in a single injection molding cycle. To further ensure molding quality, the molding component 4 also includes a first cooling water pipe 404 embedded in the bottom of the upper mold base 1, and a second cooling water pipe 404 embedded inside the lower mold core 405. 6. The lower mold core 405 is installed on the lower mold base 2 and forms the bottom of the forming groove 403. The first cooling water pipe 404 and the second cooling water pipe 406 respectively rapidly cool the upper mold base 1 and the lower mold core 405 to accelerate the solidification speed of the material in the forming groove 403. In addition, in order to ensure the alignment accuracy of the upper mold base 1 and the lower mold base 2 during the high-speed opening and closing process, the remote control shell mold structure also includes a guide rod 5 fixed on the parting surface of the upper mold base 1 and a guide sleeve 6 opened on the parting surface of the lower mold base 2 and slidingly engaged with the guide rod 5. In order to achieve higher positioning accuracy, a misalignment block 7 is also installed on the parting surface of the upper mold base 1 and the lower mold base 2.

[0033] The molding assembly 4 also includes a lower mold core 405 installed on the lower mold base 2 and forming part of the molding groove 403, a first cooling water pipe 404 embedded in the bottom of the upper mold base 1, and a second cooling water pipe 406 embedded inside the lower mold core 405. A guide rod 5 is fixed on the parting surface of the upper mold base 1, and a guide sleeve 6 that slides with the guide rod 5 is provided on the parting surface of the lower mold base 2. Furthermore, a misalignment block 7 is also installed on the parting surface of the upper mold base 1 and the lower mold base 2. An air circuit interface for connecting an external air pump 807 is provided on the base 3. The hydraulic cylinder 801 is fixed at the center position of the base 3, and the output end of the hydraulic cylinder 801 is fixedly connected upward to the center of the bottom surface of the top plate 802. The spring 805 is a compression spring, and the two ends of the spring 805 abut against the inner bottom of the fixed sleeve 803 and the bottom flange of the first ejector pin 804, respectively. The first ejector pin 804 and the second ejector pin 806 both pass through the top plate 802 and are vertically installed on the top plate 802.

[0034] Working principle: During injection molding, the upper mold base 1 and the lower mold base 2 close together. During this process, the guide rod 5 and the guide sleeve 6 slide together to achieve initial alignment. Then, the misalignment block 7 ensures the precise positioning of the parting surface. After the mold is closed and locked, the molten material enters through the inlet 401 of the upper mold base 1 and is simultaneously distributed to the two molding grooves 403 through the diversion channel 402. During the solidification of the material, the first cooling water pipe 404 and the second cooling water pipe 406, which are circulated with cooling water, rapidly and evenly cool the mold.

[0035] During mold opening and demolding, the upper mold base 1 separates from the lower mold base 2, the external air pump 807 starts, compressed air enters through the air passage interface on the base 3, and is delivered to the second ejector pin 806 through the internal air passage of the top plate 802. Then, the air is blown onto the surface of the molded remote control shell through the air hole inside the second ejector pin 806 to reduce the demolding resistance. Subsequently, the hydraulic cylinder 801 starts and pushes the top plate 802 to move upward. During the upward movement of the top plate 802, due to the action of the spring 805, the first ejector pin 804, which passes through the fixed sleeve 803, contacts and ejects the inner part of the remote control shell before the second ejector pin 806. As the top plate 802 continues to rise, the second ejector pin 806 then ejects the outer ring part of the remote control shell. Finally, the first ejector pin 804 and the second ejector pin 806 work together to smoothly eject the molded remote control shell from the lower mold core 405.

Claims

1. A remote control housing mold structure, comprising: The lower mold base (2) and the upper mold base (1) are detachably fitted above the lower mold base (2); Its characteristic is that it further includes: A molding component (4) is disposed between the upper mold base (1) and the lower mold base (2) to define an injection molding process. The molding component (4) includes a feed port (401) opened at the top of the upper mold base (1) and a flow channel (402) communicating with the feed port (401) and extending to two molding grooves (403). The demolding assembly (8) includes a base (3), a hydraulic cylinder (801), a top plate (802), a first ejector pin (804), a second ejector pin (806), and a fixing sleeve (803). The base (3) is fixed below the lower mold base (2). The hydraulic cylinder (801) is vertically mounted on the base (3). The top plate (802) is fixedly connected to the output end of the hydraulic cylinder (801) and can move up and down under the drive of the hydraulic cylinder (801). The first ejector pin (804) and the second ejector pin (806) are mounted on the top plate (802). The second ejector pin (806) has an air hole for conveying airflow inside. The fixing sleeve (803) is sleeved on the outside of the first ejector pin (804). The fixing sleeve (803) is vertically mounted on the top plate (802), and a spring (805) is connected between the fixing sleeve (803) and the first ejector pin (804).

2. The remote control housing mold structure according to claim 1, characterized in that: The molding component (4) further includes a first cooling water pipe (404) and a second cooling water pipe (406). The first cooling water pipe (404) is embedded in the bottom of the upper mold base (1), and the second cooling water pipe (406) is embedded in the lower mold core (405). The lower mold core (405) is installed on the lower mold base (2) and forms the bottom of the molding groove (403).

3. The remote control housing mold structure according to claim 1, characterized in that: A guide rod (5) is fixed on the parting surface of the upper mold base (1), and a guide sleeve (6) that slides with the guide rod (5) is provided on the parting surface of the lower mold base (2).

4. The remote control housing mold structure according to claim 3, characterized in that: The upper mold base (1) and the lower mold base (2) are also equipped with misalignment blocks (7).

5. The remote control housing mold structure according to claim 1, characterized in that: The base (3) is provided with an air passage interface for connecting an external air pump (807).

6. The remote control housing mold structure according to claim 1, characterized in that: The two ends of the spring (805) abut against the inner bottom of the fixed sleeve (803) and the bottom flange of the first ejector pin (804), respectively.

7. The remote control housing mold structure according to claim 1, characterized in that: The hydraulic cylinder (801) is fixed at the center of the base (3), and its output end is fixedly connected upward to the center of the bottom surface of the top plate (802).

8. The remote control housing mold structure according to claim 1, characterized in that: The first ejector pin (804) and the second ejector pin (806) both pass through the top plate (802) and are mounted vertically thereon.

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