Display shell injection molding device

Abstract

The utility model discloses a display shell injection molding device which comprises a device base, an upper mold cover, a lower mold box, an external cold water pipe, a demolding window and a blocking plate, a supporting rod is installed on the device base, a top plate is installed at the top end of the supporting rod, a hydraulic rod is installed on the top plate, one end of the hydraulic rod is provided with the upper mold cover, and the other end of the hydraulic rod is provided with the lower mold box. A lower mold box is installed on the device base, a demolding window is formed in the lower mold box, an electric telescopic rod B is installed in the demolding window, a blocking plate is installed at one end of the electric telescopic rod B, the blocking plate is in attached sliding connection with the opening section of the demolding window, and an air pump is installed on the lower mold box. A connecting pipe is installed on the air pump, and the other end of the connecting pipe is connected with the demolding window. According to the utility model, airflow flows in a gap between a finished product and the mold, so that the mold is separated from the inner wall, the damage possibly caused when the finished product is ejected by the push rod is avoided, the operation difficulty is reduced, and the demolding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding device related field, concretely is a kind of display shell injection molding device. BACKGROUND

[0002] Display shell injection molding refers to the processing process that part of display shell is made into injection molding piece, heated and melted plastic is injected into the mold cavity by injection molding machine high pressure, after cooling and solidification, the display plastic shell can be obtained.

[0003] The existing device has the following shortcomings when in use: the finished product after cooling is easy to stick in the mold, generally by ejector pin to eject the finished product, but this way is easy to damage the finished product, affect the quality of finished product, the heat dissipation effect is not ideal, leading to long cooling time, reduce production efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of display shell injection molding device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of display shell injection molding device, including device base, upper die cover, lower mold box, external cold water pipe, demolding window and stoppage plate, the device base is installed with support rod, the top of support rod is installed with top plate, the top plate is installed with hydraulic rod, the one end of hydraulic rod is installed with upper die cover, the device base is installed with lower mold box, the lower mold box is equipped with demolding window, the demolding window is installed with electric telescopic rod B, the one end of electric telescopic rod B is installed with stoppage plate, the stoppage plate and the opening section of demolding window are slidably connected, the lower mold box is installed with air pump, the air pump is installed with connecting pipe, the other end of connecting pipe is connected with demolding window.

[0006] Using the above technical scheme, start the hydraulic rod installed on top plate, drive the upper die cover installed on one end of hydraulic rod to move down, make upper die cover and lower mold box closely adhere to each other, then inject plastic raw material into the device, cool and shape the mold by cooling structure, after plastic raw material is cooled and shaped, start electric telescopic rod B, drive stoppage plate to move down in demolding window, make stoppage plate not adhere to the opening section of demolding window, start air pump and inject high pressure air into demolding window through connecting pipe, air flow enters mold and air pressure increases, air flow flows between finished product and mold, make mold and inner wall separate, finished product can be smoothly demoulded from mold, avoid damage caused by ejector pin to eject finished product, reduce operation difficulty, improve demolding efficiency.

[0007] Preferably, the outer wall of the lower mold box is provided with a cooling sandwich, and the lower mold box is provided with an external cold water pipe connected at one end to the cooling sandwich and at the other end to an industrial cold water machine.

[0008] The above technical scheme uses an industrial cold water machine in combination with two external cold water pipes to continuously provide a cold source for the cooling sandwich, so that the cooling liquid in the cooling sandwich can continuously absorb and remove heat from the mold, thereby effectively cooling the mold, accelerating the cooling and setting process of the plastic raw material, improving production efficiency and product quality, and the design of the cooling sandwich makes the cooling effect more uniform, avoiding deformation or quality problems of the finished product caused by uneven cooling.

[0009] Preferably, the device base is provided with a heat sink, and the heat sink is provided with a cooling fan and a filter screen.

[0010] The above technical scheme uses an industrial cold water machine in combination with two external cold water pipes to continuously provide a cold source for the cooling sandwich, so that the cooling liquid in the cooling sandwich can continuously absorb and remove heat from the mold, thereby effectively cooling the mold, accelerating the cooling and setting process of the plastic raw material, improving production efficiency and product quality, and the design of the cooling sandwich makes the cooling effect more uniform, avoiding deformation or quality problems of the finished product caused by uneven cooling.

[0011] Preferably, the upper mold cover is provided with an auxiliary plate, the auxiliary plate is provided with a limiting hole, the lower mold box is provided with an electric telescopic rod A, and one end of the electric telescopic rod A is slidably connected to the limiting hole.

[0012] The above technical scheme uses an industrial cold water machine in combination with two external cold water pipes to continuously provide a cold source for the cooling sandwich, so that the cooling liquid in the cooling sandwich can continuously absorb and remove heat from the mold, thereby effectively cooling the mold, accelerating the cooling and setting process of the plastic raw material, improving production efficiency and product quality, and the design of the cooling sandwich makes the cooling effect more uniform, avoiding deformation or quality problems of the finished product caused by uneven cooling.

[0013] Preferably, the upper mold cover is provided with a butt joint block, the lower mold box is provided with a butt joint groove, and the butt joint block is engaged with the butt joint groove.

[0014] The above technical scheme uses an industrial cold water machine in combination with two external cold water pipes to continuously provide a cold source for the cooling sandwich, so that the cooling liquid in the cooling sandwich can continuously absorb and remove heat from the mold, thereby effectively cooling the mold, accelerating the cooling and setting process of the plastic raw material, improving production efficiency and product quality, and the design of the cooling sandwich makes the cooling effect more uniform, avoiding deformation or quality problems of the finished product caused by uneven cooling.

[0015] Preferably, the upper mold cover is provided with a connecting rod, one end of the connecting rod is provided with a sliding ring, and the sliding ring is slidably connected to the supporting rod.

[0016] Adopt above technical scheme, in injection molding process, the combination of connecting rod and sliding ring plays a key guiding and stabilizing effect, ensures the smooth movement of the upper mold cover in the closing and opening process, avoids the shaking caused by improper operation or the weight of the mold itself, further enhances the stability and controllability of the mold operation, and the sliding connection mode is convenient for quick installation and disassembly of the mold, and improves the work efficiency.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. The high-pressure air is injected into the demolding window through the air pump and the connecting pipe, the air flow enters the mold, the air pressure increases, the air flow flows between the finished product and the mold, the mold and the inner wall are separated, the finished product can be smoothly separated from the mold, the damage caused by the push rod when ejecting the finished product is avoided, the operation difficulty is reduced, and the demolding efficiency is improved.

[0019] 2. The cooling sandwich is provided with a cold source through the industrial water chiller and the two external cold water pipes, so that the cooling liquid in the cooling sandwich can continuously absorb and take away the heat in the mold, thereby effectively cooling the mold and accelerating the cooling and shaping process of the plastic raw material, improving the production efficiency and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic view of the cross-sectional structure of the utility model;

[0022] Figure 3 It is a schematic view of the open structure of the utility model;

[0023] Figure 4 It is an enlarged schematic view of the demolding structure of the utility model.

[0024] In the figure: 1, device base; 2, support rod; 3, top plate; 4, upper mold cover; 5, auxiliary plate; 6, limit hole; 7, butt joint block; 8, lower mold box; 9, butt joint groove; 10, electric telescopic rod A; 11, air pump; 12, connecting pipe; 13, cooling sandwich; 14, external cold water pipe; 15, demolding window; 16, plug plate; 17, electric telescopic rod B; 18, connecting rod; 19, sliding ring; 20, hydraulic rod; 21, heat sink. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0026] Please refer to Figures 1-4 The utility model provides a kind of display shell injection molding device, including device base 1, upper die cover 4, lower mould box 8, external cold water pipe 14, demolding window 15 and stoppage plate 16, device base 1 is equipped with support rod 2, the top of support rod 2 is equipped with top plate 3, hydraulic jack 20 is installed on top plate 3, one end of hydraulic jack 20 is equipped with upper die cover 4, device base 1 is equipped with lower mould box 8, demolding window 15 is set in lower mould box 8, electric telescopic rod B 17 is installed in demolding window 15, one end of electric telescopic rod B 17 is equipped with stoppage plate 16, stoppage plate 16 and the opening section of demolding window 15 are slidably connected, air pump 11 is installed on lower mould box 8, connecting pipe 12 is installed on air pump 11, the other end of connecting pipe 12 is connected with demolding window 15.Starting hydraulic jack 20 installed on top plate 3, drive one end of hydraulic jack 20 installed upper die cover 4 to move down, make upper die cover 4 and lower mould box 8 closely adhere to each other, then inject plastic raw materials into device, cooling structure is used to cool and shape mould, after plastic raw materials are cooled and shaped, start electric telescopic rod B 17, drive stoppage plate 16 to move down in demolding window 15, make stoppage plate 16 not adhere to the opening section of demolding window 15, start air pump 11 and inject high pressure air into demolding window 15 by connecting pipe 12, air flow enters into mould and air pressure increases, air flow flows between finished product and mould, make mould and inner wall separate, finished product can be smoothly separated from mould, avoid damage when push rod ejects finished product, reduce operation difficulty, improve demolding efficiency.

[0027] Cooling interlayer 13 is arranged in the outer wall of lower mould box 8, external cold water pipe 14 is installed on lower mould box 8, two external cold water pipes 14 are arranged and one end is connected with cooling interlayer 13, the other end of external cold water pipe 14 is connected with industrial cold water machine. Through industrial cold water machine and two external cold water pipes 14, continuously circulating cooling interlayer 13 provides cold source, so that cooling liquid in cooling interlayer 13 can continuously absorb and take away heat in mould, thereby effectively cooling mould, accelerate the cooling and shaping process of plastic raw materials, improve production efficiency and product quality, the design of cooling interlayer 13 makes cooling effect more uniform, avoid finished product deformation or quality problem due to uneven cooling.

[0028] The device base 1 is provided with a heat dissipation plate 21, and a heat dissipation fan and a filter screen are installed on the heat dissipation plate 21. By starting the heat dissipation fan on the heat dissipation plate 21 in cooperation with the filter screen, the injection mold is blown and cooled, further improving the cooling efficiency of the injection mold.

[0029] The upper mold cover 4 is provided with an auxiliary plate 5, the auxiliary plate 5 is provided with a limiting hole 6, the lower mold box 8 is provided with an electric telescopic rod A10, and one end of the electric telescopic rod A10 is in sliding connection with the limiting hole 6. When the upper mold cover 4 and the lower mold box 8 are closed, the auxiliary plate 5 is in sliding fit with the outer wall of the lower mold box 8, and then one end of the electric telescopic rod A10 is inserted into the limiting hole 6 to limit and fix the upper mold cover 4, so as to ensure the close fit between the upper mold cover 4 and the lower mold box 8, prevent the upper mold cover 4 from moving or misplacing during injection molding, and improve the stability of the injection mold and the qualified rate of the injection product.

[0030] The upper mold cover 4 is provided with a butt joint block 7, the lower mold box 8 is provided with a butt joint groove 9, and the butt joint block 7 is matched with the butt joint groove 9. When the upper mold cover 4 and the lower mold box 8 are closed, the butt joint block 7 is accurately inserted into the butt joint groove 9. Such design not only further strengthens the connection stability between the upper mold cover 4 and the lower mold box 8, but also ensures the accurate positioning of the injection mold in the closed state, effectively prevents the mold from loosening or misplacing due to mold vibration or external interference during injection molding, and further improves the reliability of the injection mold and the precision of the injection product.

[0031] The upper mold cover 4 is provided with a connecting rod 18, one end of the connecting rod 18 is provided with a sliding ring 19, and the sliding ring 19 is in sliding connection with the supporting rod 2. During injection molding, the combination of the connecting rod 18 and the sliding ring 19 plays a key guiding and stabilizing role, ensuring the smooth movement of the upper mold cover 4 during closing and opening, avoiding shaking due to improper operation or the weight of the mold itself, further enhancing the stability and controllability of the mold operation. This sliding connection mode is also convenient for quick installation and disassembly of the mold, improving the work efficiency.

[0032] Working principle: start the hydraulic rod 20 installed on the top plate 3, drive the hydraulic rod 20 one end installed on the upper die cover 4 down, make the upper die cover 4 and the lower mold box 8 closely, then inject the plastic raw material into the device, cool the mold through the cooling structure, after the plastic raw material is cooled and shaped, start the electric telescopic rod B17, drive the blocking plate 16 to move down in the demolding window 15, make the blocking plate 16 not fit with the opening section of the demolding window 15, start the air pump 11 through the connecting pipe 12 to inject high pressure air into the demolding window 15, the airflow enters the mold, the air pressure increases, the airflow flows between the product and the mold, the mold and the inner wall are separated, the product can be smoothly demolded from the mold, avoid the damage caused by the push rod when ejecting the product, reduce the operation difficulty, improve the demolding efficiency, through the industrial water chiller with two external cooling water pipes 14, the circulating cooling sandwich 13 provides the cooling source, the cooling liquid in the cooling sandwich 13 can continuously absorb and take away the heat in the mold, so as to effectively cool the mold, accelerate the cooling and shaping process of the plastic raw material, improve the production efficiency and product quality, the design of the cooling sandwich 13 makes the cooling effect more uniform, avoids the deformation or quality problem of the product caused by uneven cooling, through starting the cooling fan on the heat dissipation plate 21 with the filter screen, blow the injection mold, further improve the heat dissipation efficiency of the injection mold.

[0033] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A display housing injection molding apparatus, comprising an apparatus base (1), an upper mold cover (4), a lower mold box (8), an external cold water pipe (14), a demolding window (15), and a blocking plate (16), characterized in that: A support rod (2) is installed on the base (1) of the device. A top plate (3) is installed on the top of the support rod (2). A hydraulic rod (20) is installed on the top plate (3). An upper mold cover (4) is installed on one end of the hydraulic rod (20). A lower mold box (8) is installed on the base (1). A demolding window (15) is opened on the lower mold box (8). An electric telescopic rod B (17) is installed in the demolding window (15). A blocking plate (16) is installed on one end of the electric telescopic rod B (17). The blocking plate (16) is slidably connected to the opening section of the demolding window (15). An air pump (11) is installed on the lower mold box (8). A connecting pipe (12) is installed on the air pump (11). The other end of the connecting pipe (12) is connected to the demolding window (15).

2. The display housing injection molding apparatus according to claim 1, characterized in that: A cooling jacket (13) is provided in the outer wall of the lower mold box (8). An external cold water pipe (14) is installed on the lower mold box (8). There are two external cold water pipes (14), one end of which is connected to the cooling jacket (13), and the other end of which is connected to an industrial chiller.

3. The display housing injection molding apparatus according to claim 1, characterized in that: A heat sink (21) is installed on the base (1) of the device, and a cooling fan and a filter screen are installed on the heat sink (21).

4. The display housing injection molding apparatus according to claim 1, characterized in that: An auxiliary plate (5) is installed on the upper mold cover (4), and a limiting hole (6) is opened on the auxiliary plate (5). An electric telescopic rod A (10) is installed on the lower mold box (8), and one end of the electric telescopic rod A (10) is slidably connected to the limiting hole (6).

5. The display housing injection molding apparatus according to claim 1, characterized in that: A docking block (7) is installed on the upper mold cover (4), and a docking groove (9) is provided on the lower mold box (8). The docking block (7) fits into the docking groove (9).

6. The display housing injection molding apparatus according to claim 1, characterized in that: A connecting rod (18) is installed on the upper mold cover (4), and a slip ring (19) is installed at one end of the connecting rod (18). The slip ring (19) is slidably connected to the support rod (2).

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