Quartz wall clock case injection molding mold

Abstract

The utility model relates to the technical field of clock case injection moulding, concretely to a quartz wall clock case injection moulding forming die, including installation base and top plate, the upper surface of installation base is provided with lower mould, the bottom fixed of top plate is provided with upper mould, the inside of top plate is provided with auxiliary mechanism, the auxiliary mechanism includes vacuum pump, vacuum pipe and adsorption board, the inside installation of top plate is provided with vacuum pump, the output end of vacuum pump has connected with vacuum pipe, the one end of vacuum pipe far from vacuum pump is installed and is provided with adsorption board, the utility model discloses an auxiliary mechanism that vacuum pump, vacuum pipe and adsorption board constitute, can produce negative pressure steady adsorption after the clock case of forming through adsorption hole when opening the mould, cooperate the anti -sticky coating of lower mould cavity, have realized quick smooth stripping, avoided the product deformation or surface damage that manual piece taking possibly caused, improved production efficiency again, guaranteed product appearance and dimensional accuracy.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology for wall clock shells, and in particular to an injection molding mold for quartz wall clock shells. Background Technology

[0002] In the injection molding production of quartz wall clock casings, as the consumer market continues to demand higher levels of product aesthetics, dimensional accuracy, and production efficiency, traditional injection molds and production processes are gradually revealing many problems that urgently need to be addressed. In the mold closing stage, traditional molds often rely on manual visual inspection or simple mechanical positioning, which makes it difficult to ensure the precise alignment of the upper and lower molds. This often results in cavity misalignment, which not only causes raw materials to leak from the gaps during injection molding, resulting in material waste and mold contamination, but also increases labor costs and production cycle. Misaligned cavities may also compress the material flow path, leading to uneven local wall thickness of the outer shell, affecting the structural strength and service life of the product. Because the outer casing of wall clocks often has curved surfaces or fine textures, the contact area between the inner wall of the cavity and the plastic part is relatively large. Furthermore, the cooling and shrinkage of the raw material after injection molding will generate a certain amount of adsorption force, resulting in greater resistance during the demolding process. Traditional demolding methods either rely on manual prying, which can easily cause scratches, deformation, or even cracks on the surface of the casing, especially for products that require surface spraying or electroplating. Once damaged, the product will be scrapped. Alternatively, a simple ejection mechanism can be used, but improper control of the ejection force can leave ejector pin marks on the surface of the casing, damaging the integrity of the appearance.

[0003] Therefore, we propose an injection molding mold for quartz wall clock casings. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an injection molding mold for the outer shell of a quartz wall clock.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quartz wall clock casing injection molding mold includes a mounting base and a top plate. A lower mold is provided on the upper surface of the mounting base, and an upper mold is fixedly provided at the bottom end of the top plate. An auxiliary mechanism is provided inside the top plate, including a vacuum pump, a vacuum tube, and an adsorption plate. The vacuum pump is installed inside the top plate, and the output end of the vacuum pump is connected to a vacuum tube. An adsorption plate is installed at the end of the vacuum tube away from the vacuum pump. Adsorption holes are formed above the adsorption plate, and several adsorption holes are formed. The adsorption holes are fixedly connected to the vacuum tube.

[0006] As a further embodiment of this utility model: an injection molding machine is fixedly installed at the top of the top plate, an injection molding pipe is connected to the bottom of the injection molding machine, a flow control valve is installed above the injection molding pipe, and a temperature sensor is installed inside the injection molding pipe.

[0007] As a further improvement of this utility model: an electric telescopic rod is fixedly provided on the upper surface of the mounting base, and the top end of the electric telescopic rod is fixedly connected to the top plate.

[0008] As a further improvement of this utility model: a cavity is provided above the lower mold, and an anti-stick coating is provided on the inner wall of the cavity.

[0009] As a further embodiment of this utility model: a slot is provided on the upper surface of the lower mold, and a locking block is engaged inside the slot, with the top of the locking block being fixedly connected to the upper mold.

[0010] As a further improvement of this utility model: the lower mold has an annular heat dissipation pipe inside, and the annular heat dissipation pipe is filled with coolant.

[0011] Compared with the prior art, this utility model provides an injection molding mold for a quartz wall clock casing, which has the following advantages: This invention utilizes an auxiliary mechanism consisting of a vacuum pump, a vacuum tube, and an adsorption plate. This mechanism generates negative pressure through the adsorption holes during mold opening to stabilize and adsorb the formed clock shell. Combined with the anti-stick coating on the lower mold cavity, this achieves rapid and stable demolding, avoiding product deformation or surface damage that may be caused by manual removal. It also improves production efficiency and ensures the product's appearance and dimensional accuracy.

[0012] This invention utilizes a temperature sensor equipped with an injection molding pipe to monitor the temperature of the injection molding material in real time. Combined with a flow control valve, it can precisely regulate the injection molding process, ensuring that the material is in the optimal molding state. Meanwhile, the annular heat dissipation pipe inside the lower mold circulates coolant, which can significantly accelerate the cooling speed of the injection molded parts, shorten the molding cycle, and at the same time make the product cool evenly, reduce deformation caused by internal stress, and improve the stability of product quality.

[0013] 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

[0014] Figure 1 This is a schematic diagram of the overall structure of an injection molding mold for a quartz wall clock shell proposed in this utility model; Figure 2 This is a front view cross-sectional structural diagram of an injection molding mold for a quartz wall clock shell proposed in this utility model; Figure 3This is a schematic diagram of the overall structure of the lower mold of the injection molding mold for a quartz wall clock shell proposed in this utility model; Figure 4 This is a schematic diagram of the overall structure of the upper mold of the injection molding mold for a quartz wall clock shell proposed in this utility model.

[0015] In the diagram: 1. Mounting base; 2. Top plate; 3. Lower mold; 4. Upper mold; 5. Auxiliary mechanism; 501. Vacuum pump; 502. Vacuum tube; 503. Adsorption plate; 504. Adsorption hole; 6. Injection molding machine; 7. Injection pipe; 8. Flow control valve; 9. Temperature sensor; 10. Electric telescopic rod; 11. Cavity; 12. Anti-stick coating; 13. Slot; 14. Block; 15. Annular heat dissipation pipe; 16. Coolant. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] Example: An injection molding mold for a quartz wall clock casing, such as Figures 1-4 As shown, the device includes a mounting base 1 and a top plate 2. A lower mold 3 is provided on the upper surface of the mounting base 1, and an upper mold 4 is fixedly provided at the bottom end of the top plate 2. An auxiliary mechanism 5 is provided inside the top plate 2. The auxiliary mechanism 5 includes a vacuum pump 501, a vacuum tube 502, and an adsorption plate 503. The vacuum pump 501 is installed inside the top plate 2, and the output end of the vacuum pump 501 is connected to the vacuum tube 502. An adsorption plate 503 is installed at the end of the vacuum tube 502 away from the vacuum pump 501, and an opening is provided above the adsorption plate 503. The adsorption holes 504 are provided in several places and are fixedly connected to the vacuum tube 502. The auxiliary mechanism 5, which consists of the vacuum pump 501, the vacuum tube 502 and the adsorption plate 503, can generate negative pressure through the adsorption holes 504 to stabilize and adsorb the formed clock shell when the mold is opened. With the anti-stick coating 12 of the cavity 11 of the lower mold 3, it can achieve fast and stable demolding, avoid product deformation or surface damage that may be caused by manual removal, improve production efficiency and ensure product appearance and dimensional accuracy.

[0019] like Figures 1-4 As shown, an injection molding machine 6 is fixedly installed at the top of the top plate 2, and an injection pipe 7 is connected to the bottom of the injection molding machine 6. A flow control valve 8 is installed above the injection pipe 7, and a temperature sensor 9 is installed inside the injection pipe 7. The temperature sensor 9 equipped with the injection pipe 7 can monitor the temperature of the injection material in real time. Combined with the flow control valve 8, the injection process can be precisely controlled to ensure that the material is in the best molding state.

[0020] like Figures 1-4 As shown, an electric telescopic rod 10 is fixedly installed on the upper surface of the mounting base 1. The top end of the electric telescopic rod 10 is fixedly connected to the top plate 2. Through the electric telescopic rod 10, the top plate 2 and the upper mold 4 at the bottom end can be moved downward to achieve mold closing.

[0021] like Figures 1-4 As shown, a cavity 11 is provided above the lower mold 3. The inner wall of the cavity 11 is provided with an anti-stick coating 12. The anti-stick coating 12 can significantly reduce the adhesion between the product and the inner wall of the cavity 11 after injection molding, making it easier for the product to detach from the cavity 11, reducing demolding resistance, reducing frictional wear between the mold and the product surface during demolding, and reducing mold maintenance frequency and cost.

[0022] like Figures 1-4 As shown, the upper surface of the lower mold 3 is provided with a slot 13, and a locking block 14 is engaged inside the slot 13. The top of the locking block 14 is fixedly connected to the upper mold 4, which can play a positioning and guiding role during the mold closing process, ensuring that the upper mold 4 and the lower mold 3 are accurately aligned in the vertical direction, avoiding misalignment of the cavity 11 due to alignment deviation, thereby effectively preventing problems such as material leakage during injection molding, and ensuring the molding accuracy and dimensional consistency of the quartz clock shell.

[0023] like Figures 1-4 As shown, an annular heat dissipation pipe 15 is provided inside the lower mold 3, and coolant 16 is provided inside the annular heat dissipation pipe 15. The coolant 16 circulates through the annular heat dissipation pipe 15 inside the lower mold 3, which can significantly accelerate the cooling speed of the injection molded part, shorten the molding cycle, and at the same time make the product cool evenly, reduce deformation caused by internal stress, and improve the product quality stability.

[0024] Working principle: When the mold is working, the electric telescopic rod 10 drives the top plate 2 to move down, so that the locking block 14 of the upper mold 4 and the locking groove 13 of the lower mold 3 can be precisely engaged to complete the mold closing. Then, the injection molding machine 6 injects the raw material into the cavity 11 of the lower mold 3 through the injection pipe 7. During this process, the temperature sensor 9 on the injection pipe 7 monitors the temperature of the raw material in real time, and the flow control valve 8 adjusts the injection speed and amount of raw material according to the set parameters to ensure that the raw material is in the best molding state. After the raw material is formed in the cavity 11, the annular heat dissipation pipe 15 inside the lower mold 3 quickly removes heat through the circulation of coolant 16, so that the product is uniformly cooled and solidified. After cooling is completed, the electric telescopic rod 10 drives the top plate 2 to move up to open the mold. At this time, the vacuum pump 501 inside the top plate 2 starts, and the vacuum pipe 502 creates negative pressure in the suction hole 504 of the suction plate 503 to firmly adsorb the formed clock shell. With the help of the anti-stick coating 12 on the inner wall of the cavity 11, the product can be smoothly removed from the lower mold 3.

[0025] 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 quartz wall clock casing injection molding mold, comprising a mounting base (1) and a top plate (2), characterized in that... The upper surface of the mounting base (1) is provided with a lower mold (3), and the bottom end of the top plate (2) is fixedly provided with an upper mold (4). An auxiliary mechanism (5) is provided inside the top plate (2). The auxiliary mechanism (5) includes a vacuum pump (501), a vacuum tube (502), and an adsorption plate (503). The vacuum pump (501) is installed inside the top plate (2). The output end of the vacuum pump (501) is connected to the vacuum tube (502). An adsorption plate (503) is installed at the end of the vacuum tube (502) away from the vacuum pump (501). An adsorption hole (504) is opened above the adsorption plate (503). Several adsorption holes (504) are opened. The adsorption holes (504) are fixedly connected to the vacuum tube (502).

2. The injection molding mold for a quartz wall clock casing according to claim 1, characterized in that... An injection molding machine (6) is fixedly installed at the top of the top plate (2). An injection molding pipe (7) is connected to the bottom of the injection molding machine (6). A flow control valve (8) is installed above the injection molding pipe (7). A temperature sensor (9) is installed inside the injection molding pipe (7).

3. The injection molding mold for a quartz wall clock casing according to claim 1, characterized in that... An electric telescopic rod (10) is fixedly installed on the upper surface of the mounting base (1), and the top end of the electric telescopic rod (10) is fixedly connected to the top plate (2).

4. The injection molding mold for a quartz wall clock casing according to claim 1, characterized in that... The lower mold (3) has a cavity (11) on its upper part, and the inner wall of the cavity (11) is provided with an anti-stick coating (12).

5. The injection molding mold for a quartz wall clock casing according to claim 1, characterized in that... The upper surface of the lower mold (3) is provided with a slot (13), and a locking block (14) is engaged inside the slot (13). The top of the locking block (14) is fixedly connected to the upper mold (4).

6. The injection molding mold for a quartz wall clock casing according to claim 1, characterized in that... The lower mold (3) has an annular heat dissipation pipe (15) inside, and the annular heat dissipation pipe (15) is filled with coolant (16).

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