High-temperature injection mold for television shell

Abstract

The utility model relates to the technical field of television shell injection molding production, in particular to a television shell high-temperature injection mold which comprises a fixed bottom plate, a fixed seat, a hot water tank and a water heater are fixedly arranged on the top surface of the fixed bottom plate, a cavity is formed in the fixed seat, and the top end of the fixed seat is penetrated by a lower mold seat and fixedly connected with the lower mold seat. A first water pump is arranged in the cavity, a second water pump is arranged in the hot water tank, the upper end of the side wall of the fixing base is communicated with a cooling water inlet pipe communicated with the cavity, and an upper die base matched with the lower die base is arranged above the fixing base. Firstly, water in the hot water tank is conveyed into the water heater to be heated through the second water pump, then the water is conveyed into the cavity in the fixing base to preheat the lower die base, heated cooling water is pumped into the hot water tank through the first water pump to be stored, and the heated cooling water in the hot water tank is pumped into the water heater when the lower die base is preheated. And the working time of the water heater is shortened, so that the energy consumption of the water heater is reduced.

Description

Technical Field

[0001] This utility model relates to the field of television casing injection molding production technology, specifically a high-temperature injection mold for television casings. Background Technology

[0002] The television casing is a crucial component of a television, playing a vital role in protecting its internal components. Television casings are typically made from various materials, with plastic being the most common due to its advantages such as light weight, ease of processing, and low cost. Plastic television casings are generally manufactured using injection molding. In existing injection molds, to increase processing speed, cooling systems are often used during product molding to accelerate the process. After the product cools and solidifies, the mold temperature remains low. During subsequent injections, because the injection slurry enters the injection cavity gradually, the initial slurry may cool and solidify rapidly due to the lower mold temperature, while the remaining slurry remains fluid. This prevents the slurry from forming uniformly within the cavity, and in some cases, the initial slurry may solidify and block the injection cavity, preventing subsequent slurry from entering the mold, resulting in a high scrap rate. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature injection mold for television casings, which solves the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a high-temperature injection mold for a television casing, comprising a fixed base plate parallel to a horizontal plane, a fixed seat, a hot water tank, and a water heater fixedly mounted on the top surface of the fixed base plate, a cavity being formed inside the fixed seat, the top of the fixed seat being penetrated by and fixedly connected to the lower mold base, a water pump one being installed inside the cavity, a water pump two being installed inside the hot water tank, a cooling water inlet pipe communicating with the cavity being penetrated through the upper end of the side wall of the fixed seat, and an upper mold base cooperating with the lower mold base being installed above the fixed seat.

[0006] Furthermore, a connecting pipe 1 connects the outlet of the water pump 1 to the hot water tank, a connecting pipe 2 connects the outlet of the water pump 2 to the inlet of the water heater, and a connecting pipe 3, which passes through the lower end of the side wall of the fixed seat, connects the outlet of the water heater to the cavity.

[0007] Furthermore, a temperature sensor is fixedly installed inside the hot water tank, and the temperature sensor is electrically connected to the water heater.

[0008] Furthermore, a second drain pipe is provided at the lower end of the hot water tank, a second solenoid valve is installed on the second drain pipe, and a liquid level sensor is provided inside the hot water tank, the liquid level sensor being electrically connected to the second solenoid valve.

[0009] Furthermore, the lower end of the fixed base is provided with a drain pipe communicating with the cavity, and an electromagnetic valve is installed on the drain pipe.

[0010] Furthermore, a cylinder is provided above the upper mold base, and the transmission shaft of the cylinder is coaxially fixed with a telescopic rod perpendicular to the horizontal plane. The bottom end of the telescopic rod is fixedly connected to the top surface of the upper mold base.

[0011] Furthermore, a support rod perpendicular to the horizontal plane is fixedly installed at the top of the fixed base, and the top of the support rod is fixedly connected to the fixed top plate. The cylinder is disposed above the top surface of the fixed top plate, and the fixed top plate is penetrated by the telescopic rod.

[0012] This utility model has the following beneficial effects:

[0013] This utility model uses a second water pump to send water from the hot water tank to the water heater for heating, and then sends it into the cavity of the fixed base to preheat the lower mold base;

[0014] This invention uses a cooling water inlet pipe to inject cooling water into the cavity to cool the lower mold base, thereby increasing the cooling rate of the TV casing inside the lower mold base. As the temperature of the lower mold base decreases due to the cooling water, the temperature of the cooling water rises. A water pump then pumps the heated cooling water into a hot water tank for storage. When preheating the lower mold base, the heated cooling water in the hot water tank is pumped into the water heater, reducing the water heater's operating time and thus reducing its energy consumption.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixing base and hot water tank structure of this utility model;

[0019] Figure 3 for Figure 1 A schematic diagram of the cylinder and upper mold base structure in the middle;

[0020] Figure 4 for Figure 1 A partial structural diagram;

[0021] Figure 5 for Figure 1 A cross-sectional view of the hot water tank in the diagram;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Fixed base plate; 2. Fixed seat; 201. Cavity; 202. Cooling water inlet pipe; 203. Drain pipe one; 2031. Solenoid valve one; 3. Lower mold base; 4. Upper mold base; 5. Cylinder; 501. Telescopic rod; 6. Fixed top plate; 601. Support rod; 7. Water pump one; 701. Connecting pipe one; 8. Hot water tank; 801. Drain pipe two; 8011. Solenoid valve two; 9. Water pump two; 901. Connecting pipe two; 10. Water heater; 1001. Connecting pipe three; 11. Temperature sensor; 12. Liquid level sensor. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figure 1-5As shown, this utility model is a high-temperature injection mold for a television casing, including a fixed base plate 1 parallel to the horizontal plane. A fixed seat 2, a hot water tank 8, and a water heater 10 are fixedly mounted on the top surface of the fixed base plate 1. A cavity 201 is formed inside the fixed seat 2. The top of the fixed seat 2 is penetrated by a lower mold base 3 and fixedly connected to the lower mold base 3. A water pump 7 is installed inside the cavity 201, and a water pump 9 is installed inside the hot water tank 8. A cooling water inlet pipe 202, communicating with the cavity 201, is passed through the upper end of the side wall of the fixed seat 2. An upper mold base 4, which cooperates with the lower mold base 3, is installed above the fixed seat 2. A connecting pipe 701 connects the outlet end of the water pump 7 to the hot water tank 8, and the outlet end of the water pump 9 connects to the water heater 10. The water inlet of the water heater 10 is connected to a connecting pipe 901, and the water outlet of the water heater 10 is connected to the cavity 201 by a connecting pipe 1001 that passes through the lower end of the side wall of the fixed base 2. In this embodiment, after the TV shell is injection molded, cooling water is injected into the cavity 201 through the cooling water inlet pipe 202 to cool down the lower mold base 3, thereby increasing the molding cooling rate of the TV shell in the lower mold base 3. During the process of cooling water lowering the temperature of the lower mold base 3, the temperature of the cooling water rises. The heated cooling water is pumped into the hot water tank 8 for storage by the water pump 7. When preheating the lower mold base 3, the heated cooling water in the hot water tank 8 is pumped into the water heater 10 to reduce the working time of the water heater 10, thereby reducing the energy consumption of the water heater 10.

[0027] A temperature sensor 11 is fixedly installed inside the hot water tank 8. The temperature sensor 11 is electrically connected to the water heater 10. In this embodiment, the temperature sensor 11 monitors the temperature of the water in the hot water tank 8. When the water pump 2 9 pumps water, the temperature sensor 11 sends an electrical signal to the water heater 10, so that the water heater 10 adjusts the heating time of the water according to the preset heating temperature.

[0028] The hot water tank 8 is equipped with a drain pipe 801 at its lower end, and a solenoid valve 8011 is installed on the drain pipe 801. A liquid level sensor 12 is installed inside the hot water tank 8, and the liquid level sensor 12 is electrically connected to the solenoid valve 8011. In this embodiment, the liquid level sensor monitors the liquid level in the hot water tank 8. When the liquid level sensor detects that the water level exceeds a preset value, it sends an electrical signal to the solenoid valve 8011, which then opens to release water and prevents excessive water from entering the hot water tank 8.

[0029] The lower end of the fixed base 2 is provided with a drain pipe 203 that communicates with the cavity 201. An electromagnetic valve 2031 is installed on the drain pipe 203. In this embodiment, after the lower mold base 3 is preheated, the electromagnetic valve 2031 is opened to drain the water in the cavity 201.

[0030] In this embodiment, a cylinder 5 is installed above the upper mold base 4. The transmission shaft of the cylinder 5 is coaxially fixed with a telescopic rod 501 perpendicular to the horizontal plane. The bottom end of the telescopic rod 501 is fixedly connected to the top surface of the upper mold base 4. A support rod 601 perpendicular to the horizontal plane is fixedly installed at the top of the fixed base 2. The top end of the support rod 601 is fixedly connected to the fixed top plate 6. The cylinder 5 is installed above the top surface of the fixed top plate 6, and the fixed top plate 6 is penetrated by the telescopic rod 501. In this embodiment, when the mold is closed, the cylinder 5 drives the telescopic rod 501 to extend, causing the upper mold base 4 to move down and close with the lower mold base 3. After the battery housing is cooled and formed, the cylinder 5 is driven to retract the telescopic rod 501, causing the upper mold base 4 to move up and away from the lower mold base 3, and then the battery housing is demolded.

[0031] Understandably, this invention first uses water pump 29 to send water from the hot water tank 8 to the water heater 10 for heating, and then sends it into the cavity 201 in the fixed base 2 to preheat the lower mold base 3. Secondly, water pump 17 pumps the heated cooling water into the hot water tank 8 for storage. When preheating the lower mold base 3, the heated cooling water in the hot water tank 8 is pumped into the water heater 10, reducing the working time of the water heater 10 and thus reducing the energy consumption of the water heater 10.

[0032] A specific application of this embodiment is as follows: The cylinder 5 drives the telescopic rod 501 to extend, causing the upper mold base 4 to move downwards for mold closing. Then, injection molding is performed. After the television casing is injection molded, cooling water is injected into the cavity 201 through the cooling water inlet pipe 202 to cool the lower mold base 3, increasing the cooling rate of the television casing within the lower mold base 3. After the battery casing has cooled and solidified, the cylinder 5 is driven to retract the telescopic rod 501, causing the upper mold base 4 to move upwards away from the lower mold base 3. Then, the battery casing is demolded. The lower mold base is then cooled by the cooling water. 3. During the temperature drop process, the cooling water temperature rises. The heated cooling water is pumped into the hot water tank 8 for storage by water pump 7. When the lower mold base 3 is preheated, the heated cooling water in the hot water tank 8 is pumped into the water heater 10 to reduce the working time of the water heater 10, thereby reducing the energy consumption of the water heater 10. The temperature sensor 11 monitors the temperature of the water in the hot water tank 8. When water pump 9 pumps water, the temperature sensor 11 sends an electrical signal to the water heater 10, so that the water heater 10 adjusts the heating time of the water according to the preset heating temperature.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-temperature injection mold for a television casing, comprising a fixed base plate (1) parallel to a horizontal plane, characterized in that: The top surface of the fixed base plate (1) is fixedly provided with a fixed seat (2), a hot water tank (8) and a water heater (10). A cavity (201) is opened in the fixed seat (2). The top of the fixed seat (2) is penetrated by the lower mold base (3) and fixedly connected to the lower mold base (3). A water pump (7) is provided in the cavity (201). A water pump (9) is provided in the hot water tank (8). The upper end of the side wall of the fixed seat (2) is penetrated by a cooling water inlet pipe (202) that communicates with the cavity (201). An upper mold base (4) that cooperates with the lower mold base (3) is provided above the fixed seat (2).

2. The high-temperature injection mold for a television casing according to claim 1, characterized in that: A connecting pipe 1 (701) connects the outlet of the water pump 1 (7) to the hot water tank (8), a connecting pipe 2 (901) connects the outlet of the water pump 2 (9) to the inlet of the water heater (10), and a connecting pipe 3 (1001) connects the outlet of the water heater (10) to the cavity (201) and passes through the lower end of the side wall of the fixed seat (2).

3. The high-temperature injection mold for a television casing according to claim 1, characterized in that: A temperature sensor (11) is fixedly installed inside the hot water tank (8), and the temperature sensor (11) is electrically connected to the water heater (10).

4. The high-temperature injection mold for a television casing according to claim 1, characterized in that: The lower end of the hot water tank (8) is provided with a drain pipe (801), and a solenoid valve (8011) is installed on the drain pipe (801). A liquid level sensor (12) is provided inside the hot water tank (8), and the liquid level sensor (12) is electrically connected to the solenoid valve (8011).

5. The high-temperature injection mold for a television casing according to claim 1, characterized in that: The lower end of the fixed base (2) is provided with a drain pipe (203) communicating with the cavity (201), and an electromagnetic valve (2031) is installed on the drain pipe (203).

6. The high-temperature injection mold for a television casing according to claim 1, characterized in that: A cylinder (5) is provided above the upper mold base (4). The transmission shaft of the cylinder (5) is coaxially fixed with a telescopic rod (501) perpendicular to the horizontal plane. The bottom end of the telescopic rod (501) is fixedly connected to the top surface of the upper mold base (4).

7. A high-temperature injection mold for a television casing according to claim 6, characterized in that: The top of the fixed base (2) is fixedly provided with a support rod (601) perpendicular to the horizontal plane. The top of the support rod (601) is fixedly connected to the fixed top plate (6). The cylinder (5) is disposed above the top surface of the fixed top plate (6) and the fixed top plate (6) is penetrated by the telescopic rod (501).

Images