A cooling and shaping device for plastic shell production

Abstract

The utility model relates to the technical field of plastic shell production equipment, especially to a cooling and shaping device for plastic shell production, including organic shell, support frame, controller, compression assembly and connecting frame, the support frame is fixedly connected with the bottom of shell, the controller is installed in the front side of shell, the compression assembly is equipped on the shell, the connecting frame is fixedly connected with the left and right sides in the shell. Through the spray water cooling pipeline and the fan air cooling, the cooling logic of first rapid cooling and then auxiliary drying is formed, the spray water cooling directly acts on the shell surface, a large amount of heat is quickly taken away by using the high specific heat capacity of water, the fan air cooling is guided by the air deflector cover, the shell temperature is further reduced, and the surface residual moisture is evaporated, the problem that the existing plastic shell cooling and shaping device adopts single air cooling mode, the cooling is slow, and the deformation is easy, and the single water cooling mode is fast, but the residual water stain affects the processing quality.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic shell production equipment, and in particular to a cooling and shaping device for plastic shell production. Background Technology

[0002] Plastic housings are outer shell components made primarily of plastic through specific processing techniques. They are used to enclose and protect internal components (such as electronic components and mechanical parts) or serve as the outer structure of a product. They are widely used in consumer electronics and other fields. During the production process of plastic housings, the newly formed plastic housings are at a high temperature and require cooling and shaping treatment to ensure the stability of the plastic housing's shape and dimensional accuracy, facilitating subsequent processing and use.

[0003] Currently, most existing plastic shell cooling and shaping devices use a single cooling method, such as air cooling or water cooling alone. When using air cooling alone, the cooling speed is slow and the cold air distribution is uneven, which can easily lead to inconsistent cooling speeds in different parts of the plastic shell, resulting in problems such as deformation and warping, thus affecting the shaping effect. When using water cooling alone, although the cooling speed is relatively fast, moisture is easily left on the surface of the plastic shell. If not dealt with in time, it will not only affect subsequent processing steps, but may also cause water stains and uneven gloss on the surface of the plastic shell, reducing product quality.

[0004] Therefore, a cooling and shaping device for the production of plastic shells needs to be designed. Utility Model Content

[0005] In order to overcome the shortcomings of existing plastic shell cooling and shaping devices that use a single air cooling method, which is slow and prone to deformation, and a single water cooling method, which is fast but leaves water stains and affects the processing quality, this utility model provides a cooling and shaping device for plastic shell production.

[0006] Technical Solution: A cooling and shaping device for plastic shell production includes a shell, a support frame, a controller, a pressing assembly, a connecting frame, spray pipes, nozzles, a water tank, a sealing cover, a water pump, a connecting pipe, an air guide shroud, and a fan. The support frame is fixedly connected to the bottom of the shell. The controller is installed on the front side of the shell. The pressing assembly is mounted on the shell. Connecting frames are fixedly connected to both the left and right sides inside the shell. Spray pipes are rotatably connected to each connecting frame. Multiple nozzles are fixedly connected to the outside of each spray pipe. Water tanks are fixedly connected to both the left and right sides outside the shell. Sealing covers are threaded onto the top of each water tank. A water pump is installed on the top of each water tank. Connecting pipes are connected between the spray pipes and the water tanks on the same side, and these connecting pipes penetrate the shell. An air guide shroud is fixedly connected to the rear side inside the shell. Multiple fans are installed inside the air guide shroud. The water pump and fans are electrically connected to the controller.

[0007] Optionally, the pressing assembly includes a support base, support columns, a support plate, a hydraulic cylinder, a connecting plate, guide rods, an upper mold, springs, sleeve rods, sliding rods, a lower mold, heating wires, and condenser tubes. A support base is fixedly connected to the bottom of the housing. Multiple support columns are fixedly connected to the top of the support base. A support plate is fixedly connected between the tops of the multiple support columns. A hydraulic cylinder is installed inside the support plate. A connecting plate is connected to the telescopic rod of the hydraulic cylinder. Multiple guide rods are slidably connected inside the connecting plate. An upper mold is fixedly connected between the bottoms of the multiple guide rods. A temperature sensor is installed on the top of the upper mold. Both the hydraulic cylinder and the temperature sensor are electrically connected to the controller. Multiple springs are connected between the connecting plate and the upper mold. Multiple sleeve rods are fixedly connected to the bottom of the connecting plate. Multiple sliding rods are fixedly connected to the top of the support base. Each sliding rod is slidably connected to its corresponding sleeve rod. A lower mold is fixedly connected to the top of the support base. Multiple heating wires and condenser tubes are installed inside both the upper and lower molds. Both heating wires and condenser tubes are electrically connected to the controller.

[0008] Optionally, it also includes a large gear, a motor, and a small gear. A large gear is fixedly connected to the rear side of the outside of the spray pipe, and a motor is installed on the left and right sides of the rear side inside the casing. The motor is electrically connected to the controller, and a small gear is connected to the output shaft of the motor. The large gear and the corresponding small gear mesh with each other.

[0009] Optionally, it also includes a filter screen, which is fixedly connected to the rear side of the inside of the air guide shroud.

[0010] Optionally, it also includes a water storage frame, a return pipe and a return pump. Multiple liquid drop troughs are provided at the bottom of the casing. A water storage frame is fixedly connected to the bottom of the casing. Return pipes are fixedly connected to the left and right sides of the water storage frame and the inside of the two water storage tanks. A return pump is installed on each return pipe. The return pump is electrically connected to the controller.

[0011] Optionally, it also includes scale lines and a sealing door, with scale lines engraved on the front of the water tank and a sealing door rotatably connected to the front of the casing.

[0012] Beneficial effects: 1. By combining spray water cooling pipes with fan air cooling, a cooling logic is formed that first rapidly cools down and then assists in drying. Spray water cooling acts directly on the shell surface, using the high specific heat capacity of water to quickly remove a large amount of heat. Fan air cooling further reduces the shell temperature through the concentrated airflow guided by the air guide shroud, while accelerating the evaporation of residual moisture on the surface. This solves the problems of existing plastic shell cooling and shaping devices that use a single air cooling method, which is slow and prone to deformation, while a single water cooling method is fast but leaves water stains, affecting the processing quality.

[0013] 2. This utility model uses a large gear, a motor, and a small gear. The spray pipe rotates through the meshing of the motor, the small gear, and the large gear. Combined with the nozzles on the spray pipe, the cooling water can cover the surface of the plastic shell from different angles on both sides, avoiding the problem of insufficient cooling in traditional fixed spraying. This effectively reduces warping and deformation caused by uneven cooling and improves the flatness of the product.

[0014] 3. This utility model, by setting up a water storage frame, a return pipe and a return pump, collects the cooling water after spraying into the water storage frame through the drop trough, and then sends it back to the water storage tank for reuse through the return pump, forming a closed-loop water circulation system, reducing cooling water consumption and improving water resource utilization. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the support base, support column, and support plate of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the hydraulic cylinder, connecting plate, and guide rod of this utility model.

[0018] Figure 4 This is a partial sectional view of the upper and lower mold components of this utility model.

[0019] Figure 5 This is a three-dimensional structural masked view of the components of this utility model, including the water storage frame, return pipe, and return pump.

[0020] Figure 6 This is a three-dimensional structural diagram of the spray pipe, nozzle, and large gear of this utility model.

[0021] Figure 7 This is a three-dimensional structural masked view of the components of this utility model, such as the air guide cover, filter screen, and water storage frame.

[0022] Figure 8 This is a three-dimensional structural diagram of the air guide cover, fan, and filter components of this utility model.

[0023] Reference numerals: 1_Main casing, 101_Liquid trough, 2_Support frame, 3_Controller, 4_Support base, 5_Support column, 6_Support plate, 7_Hydraulic cylinder, 8_Connecting plate, 9_Guide rod, 10_Upper mold, 1001_Temperature sensor, 11_Spring, 12_Sleeve rod, 13_Slide rod, 14_Lower mold, 1401_Heating wire, 1402_Condenser tube, 15_Connecting frame, 16_Spray pipe, 17_Spray head, 18_Large gear, 19_Motor, 20_Small gear, 21_Water tank, 22_Sealing cover, 23_Water pump, 24_Connecting pipe, 25_Air guide shroud, 26_Fan, 27_Filter screen, 28_Water storage frame, 29_Return pipe, 30_Return pump, 31_Scale line, 32_Sealing door. Detailed Implementation

[0024] Example: A cooling and shaping device for producing plastic shells, such as... Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the device includes a housing 1, a support frame 2, a controller 3, a pressing assembly, a connecting frame 15, a spray pipe 16, a nozzle 17, a water tank 21, a sealing cover 22, a water pump 23, a connecting pipe 24, an air guide shroud 25, and a fan 26. The support frame 2 is welded to the bottom of the housing 1, and the controller 3 is installed on the front right side of the housing 1. The controller 3 is a Siemens S7-200 SMART CPU. The CR40s model has a pressing assembly on the casing 1. Symmetrically distributed connecting frames 15 are welded to both the left and right sides inside the casing 1. Spray pipes 16 are rotatably connected to each connecting frame 15. Six evenly distributed nozzles 17 are welded to the outside of each spray pipe 16. Water tanks 21 are welded to both the left and right sides outside the casing 1. All water tanks 21 are made of transparent material. A sealing cap 22 is threaded onto the top of each water tank 21. A water pump 23 is installed on the top of each water tank 21. Connecting pipes 24 connect the spray pipes 16 and water tanks 21 on the same side, penetrating the casing 1. An air guide shroud 25 is welded to the rear inside the casing 1. Two symmetrically distributed fans 26 are installed inside the air guide shroud 25. Both the water pump 23 and the fans 26 are electrically connected to the controller 3.

[0025] like Figure 2 , Figure 3 and Figure 4As shown, the pressing assembly includes a support base 4, support columns 5, support plate 6, hydraulic cylinder 7, connecting plate 8, guide rod 9, upper mold 10, spring 11, sleeve rod 12, slide rod 13, lower mold 14, heating wire 1401, and condenser pipe 1402. The support base 4 is welded to the bottom of the housing 1. Two symmetrically distributed support columns 5 are welded to the front and rear sides of the top of the support base 4. A support plate 6 is welded between the tops of the four support columns 5. A hydraulic cylinder 7 is installed inside the support plate 6. A connecting plate 8 is connected to the telescopic rod of the hydraulic cylinder 7. Two symmetrically distributed guide rods 9 are slidably connected to the front and rear sides of the connecting plate 8 via sliding grooves. An upper mold 10 is welded between the bottoms of the four guide rods 9. A temperature sensor 1001 is installed on the top. Both the hydraulic cylinder 7 and the temperature sensor 1001 are electrically connected to the controller 3. Four springs 11 are connected between the connecting plate 8 and the upper mold 10. The springs 11 are all sleeved on the outside of the guide rod 9. Two sleeve rods 12 are welded to the front and rear sides of the bottom of the connecting plate 8. Two sliding rods 13 are welded to the front and rear sides of the top of the support base 4. The sliding rods 13 are slidably connected to the corresponding sleeve rods 12 through sliding grooves. A lower mold 14 is welded to the top of the support base 4. Multiple heating wires 1401 and condenser tubes 1402 are installed inside the upper mold 10 and the lower mold 14. The heating wires 1401 and condenser tubes 1402 are all electrically connected to the controller 3.

[0026] like Figure 5 and Figure 6 As shown, it also includes a large gear 18, a motor 19 and a small gear 20. The large gear 18 is welded to the rear side of the outside of the spray pipe 16. The motor 19 is installed on the left and right sides of the rear side inside the housing 1. The motor 19 is electrically connected to the controller 3. The small gear 20 is connected to the output shaft of the motor 19. The large gear 18 and the corresponding small gear 20 are meshed with each other.

[0027] like Figure 2 and Figure 5 As shown, it also includes a filter screen 27, scale lines 31, and a sealing door 32. The filter screen 27 is welded to the rear side of the inside of the air guide shroud 25. The filter screen 27 can filter dust, fibers, and other impurities in the air, preventing impurities from being blown onto the surface of the damp plastic shell when the fan 26 is running, thus reducing subsequent cleaning procedures. The front side of the water storage tank 21 is engraved with scale lines 31, which allows operators to visually display the water level in the water storage tank 21 and easily determine whether water needs to be added. The front side of the casing 1 is rotatably connected to a sealing door 32, which can be closed during operation to form a relatively enclosed space, preventing cooling water from splashing onto the outside of the equipment and causing the ground to become slippery, thus reducing safety hazards.

[0028] like Figure 1 , Figure 2 , Figure 5 and Figure 7As shown, it also includes a water storage frame 28, a return pipe 29 and a return pump 30. Five liquid drop troughs 101 are opened at the bottom of the housing 1. A water storage frame 28 is welded to the bottom of the housing 1. Return pipes 29 are welded to the left and right sides of the water storage frame 28 and the inside of the two water storage tanks 21. A return pump 30 is installed on each of the return pipes 29. The return pump 30 is electrically connected to the controller 3.

[0029] When this device is needed, the operator first rotates the sealing cover 22 to pour cooling water into the water storage tank 21. After pouring, the sealing cover 22 is rotated in the opposite direction to tighten it. Then, the sealing door 32 is rotated to open the machine housing 1, and the blank is placed in the lower mold 14. Then, the sealing door 32 is rotated in the opposite direction to close the machine housing 1. The hydraulic cylinder 7 and the heating wire 1401 are started. The extension rod of the hydraulic cylinder 7 extends downward, driving the connecting plate 8 to descend vertically. At this time, the sleeve rod 12 slides downward along the slide rod 13. When the connecting plate 8 descends, it drives the upper mold 10 to descend synchronously through the guide rod 9. When the bottom of the upper mold 10 contacts the blank in the lower mold 14, the blank is aligned with the upper mold. 14 generates a reaction force, pushing the upper mold 10 to move slightly upward. At the same time, the guide rod 9 slides upward along the connecting plate 8, the spring 11 is compressed, and the hydraulic cylinder 7 continuously outputs a downward thrust to overcome the elastic force of the spring 11, so that the upper mold 10 continues to press down on the blank until the upper mold 10 and the lower mold 14 are completely attached and form a stable press on the blank. Then, the extension rod of the hydraulic cylinder 7 is controlled to stop extending, and the controller 3 outputs current to the heating wire 1401. When the current passes through the heating wire 1401, heat is generated by the principle of metal resistance heating. The heat is transferred to the cavities of the upper mold 10 and the lower mold 14 until the blank is initially shaped under the pressing state.

[0030] After the molding is completed, the heating wire 1401 is turned off, and the condenser 1402 and water pump 23 are started by the controller 3. When the cooling water flows in the serpentine condenser 1402, it exchanges heat with the high-temperature air in the cavity, the walls of the upper mold 10 and the lower mold 14, and the heating wire 1401. The water pump 23 draws out the cooling water from the water storage tank 21 and delivers it to the spray pipe 16 through the connecting pipe 24. The cooling water is atomized or sprayed out in a columnar shape through the nozzle 17 and sprayed on the surface of the plastic shell in the pressed state, quickly removing the heat from the shell and achieving preliminary cooling. To avoid spray dead zones, the output shaft of the motor 19 can be controlled to rotate by the controller 3, thereby driving the small gear 20 to rotate. Since the small gear 20 and the large gear 18 are connected... The small gear 20 meshes with the large gear 18, which drives the spray pipe 16 synchronously, enabling the nozzle 17 to spray the plastic shell from different angles. This ensures uniform cooling of all parts of the shell and prevents deformation caused by local temperature differences. The sprayed cooling water falls under gravity and flows into the water storage frame 28 through the drop trough 101. When the water level in the water storage frame 28 reaches the preset threshold, the controller 3 starts the return pump 30. The return pump 30 transports the cooling water collected in the water storage frame 28 back to the water storage tank 21 through the return pipe 29, realizing the recycling of cooling water and reducing water consumption. The water level can be observed in real time through the scale line 31. If the water level drops due to evaporation or other reasons, the sealing cover 22 can be opened to replenish the cooling water.

[0031] At this time, the temperature sensor 1001 monitors the temperature of the upper mold 10 in real time and transmits the temperature signal to the controller 3. After the temperature of the upper mold 10 drops to the preset threshold, the condenser pipe 1402, water pump 23 and reflux pump 30 are turned off. The controller 3 starts the fan 26. The fan 26 generates cold air which is concentrated and blown onto the surface of the plastic shell through the air guide shroud 25. At the same time, the filter screen 27 can filter dust and impurities in the air to prevent them from adhering to the damp shell surface and ensure the cleanliness of the shell surface.

[0032] When the plastic shell cools to the preset temperature, the fan 26 is turned off, and the controller 3 controls the extension rod of the hydraulic cylinder 7 to retract, driving the connecting plate 8 and the upper mold 10 to return to their original position. The guide rod 9 slides along the connecting plate 8, and the sleeve rod 12 slides along the slide rod 13 until the upper mold 10 is completely separated from the lower mold 14. The spring 11 returns to its original position, and the operator can then open the sealing door 32 to remove the cooled and shaped plastic shell from the lower mold 14. If continuous production is required, the above operation can be repeated. After all the plastic shells are produced, the impurities in the cleaning drip tank 101 are cleaned to complete the use of the device.

Claims

1. A cooling and shaping device for producing plastic shells, characterized in that: The system includes a housing (1), a support frame (2), a controller (3), a pressing assembly, a connecting frame (15), a spray pipe (16), a nozzle (17), a water tank (21), a sealing cover (22), a water pump (23), a connecting pipe (24), an air guide shroud (25), and a fan (26). The support frame (2) is fixedly connected to the bottom of the housing (1). The controller (3) is installed on the front side of the housing (1). The pressing assembly is provided on the housing (1). The connecting frames (15) are fixedly connected to both the left and right sides inside the housing (1). The spray pipes (16) are rotatably connected to the connecting frames (15). The spray pipes (16) are rotatably connected to the outside of the spray pipes (16). Each part is fixedly connected with multiple nozzles (17). Water tanks (21) are fixedly connected to the left and right sides of the outer casing (1). Sealing caps (22) are threadedly connected to the top of each water tank (21). Water pumps (23) are installed on the top of each water tank (21). Connecting pipes (24) are connected between the spray pipes (16) and the water tanks (21) on the same side. Connecting pipes (24) penetrate the casing (1). Air guide hoods (25) are fixedly connected to the rear side of the inner casing (1). Multiple fans (26) are installed inside the air guide hoods (25). Water pumps (23) and fans (26) are electrically connected to the controller (3).

2. The cooling and shaping device for producing plastic shells as described in claim 1, characterized in that: The pressing assembly includes a support base (4), support columns (5), support plate (6), hydraulic cylinder (7), connecting plate (8), guide rod (9), upper mold (10), spring (11), sleeve rod (12), slide rod (13), lower mold (14), heating wire (1401), and condenser pipe (1402). The support base (4) is fixedly connected to the bottom of the housing (1). Multiple support columns (5) are fixedly connected to the top of the support base (4). The support plate (6) is fixedly connected between the tops of the multiple support columns (5). The hydraulic cylinder (7) is installed inside the support plate (6). The connecting plate (8) is connected to the telescopic rod of the hydraulic cylinder (7). Multiple guide rods (9) are slidably connected inside the connecting plate (8). The upper mold is fixedly connected between the bottoms of the multiple guide rods (9). The upper mold (10) is equipped with a temperature sensor (1001) on its top. The hydraulic cylinder (7) and the temperature sensor (1001) are electrically connected to the controller (3). Multiple springs (11) are connected between the connecting plate (8) and the upper mold (10). Multiple sleeve rods (12) are fixedly connected to the bottom of the connecting plate (8). Multiple sliding rods (13) are fixedly connected to the top of the support base (4). The sliding rods (13) are all slidably connected to the corresponding sleeve rods (12). The lower mold (14) is fixedly connected to the top of the support base (4). Multiple heating wires (1401) and condenser tubes (1402) are installed inside the upper mold (10) and the lower mold (14). The heating wires (1401) and condenser tubes (1402) are all electrically connected to the controller (3).

3. The cooling and shaping device for producing plastic shells as described in claim 2, characterized in that: It also includes a large gear (18), a motor (19) and a small gear (20). The large gear (18) is fixedly connected to the rear side of the spray pipe (16). The motor (19) is installed on the left and right sides of the rear side of the machine casing (1). The motor (19) is electrically connected to the controller (3). The output shaft of the motor (19) is connected to the small gear (20). The large gear (18) and the corresponding small gear (20) mesh with each other.

4. The cooling and shaping device for producing plastic shells as described in claim 3, characterized in that: It also includes a filter screen (27), and the filter screen (27) is fixedly connected to the rear side of the inside of the air guide hood (25).

5. The cooling and shaping device for producing plastic shells as described in claim 4, characterized in that: It also includes a water storage frame (28), a return pipe (29) and a return pump (30). Multiple liquid drop troughs (101) are provided at the bottom of the casing (1). A water storage frame (28) is fixedly connected to the bottom of the casing (1). A return pipe (29) is fixedly connected to the left and right sides of the water storage frame (28) and the inside of the two water storage tanks (21). A return pump (30) is installed on the return pipe (29). The return pump (30) is electrically connected to the controller (3).

6. The cooling and shaping device for producing plastic shells as described in claim 5, characterized in that: It also includes scale lines (31) and a sealing door (32). The front side of the water tank (21) is engraved with scale lines (31), and the front side of the casing (1) is rotatably connected with a sealing door (32).

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