Water cooling structure of plastic mould

Abstract

The utility model provides a water cooling structure of a plastic mould. The plastic mold water cooling structure comprises a plurality of cooling holes formed in an upper mold and a lower mold, a supporting table is fixedly installed at the bottom of the lower mold, a transfer water tank is arranged on one side of the supporting table, a cooling cylinder is arranged below the transfer water tank, and a water inlet pipe and a water outlet pipe are arranged on the two sides of the supporting table respectively. Corrugated pipes are fixedly mounted at the top ends of the water inlet pipe and the water outlet pipe, connecting pipes are fixedly mounted at the top ends of the two corrugated pipes, two liquid distribution pipes are arranged on the two sides of the upper mold, and first branch pipes are fixedly mounted on the water inlet pipe, the water outlet pipe and the two connecting pipes; one ends of the four branch pipes I are fixedly connected with the corresponding liquid distribution pipes, and a plurality of branch pipes II are fixedly mounted on the four liquid distribution pipes. The water cooling structure of the plastic mould has the advantage of being capable of reducing cooling cost.

Description

Technical Field

[0001] This utility model relates to the field of water cooling mechanism technology, and in particular to a water cooling structure for plastic molds. Background Technology

[0002] Plastic mold is a type of combination mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. During the use of plastic molds, very high temperatures are generated inside the mold core. In order to solidify the plastic product as soon as possible for ejection and reduce the impact of high temperature on the ejection of the plastic product, water cooling treatment is performed.

[0003] However, the common water cooling method involves creating a cooling cavity inside the mold and filling it with coolant. In practice, this method has been found to have a problem: the coolant needs to be drained after use and cannot be recycled. This results in a low coolant utilization rate and a large amount of coolant is consumed, thus increasing the cost of water cooling.

[0004] Therefore, it is necessary to provide a new water-cooling structure for plastic molds to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a water-cooling structure for plastic molds that can reduce cooling costs.

[0006] To solve the above-mentioned technical problems, the plastic mold water-cooling structure provided by this utility model includes: multiple cooling holes opened on the upper mold and the lower mold; a support platform is fixedly installed at the bottom of the lower mold; a transfer water tank is provided on one side of the support platform; a cooling cylinder is provided below the transfer water tank; an inlet pipe and an outlet pipe are respectively provided on both sides of the support platform; a corrugated pipe is fixedly installed at the top of each of the inlet pipe and the outlet pipe; a connecting pipe is fixedly installed at the top of each of the two corrugated pipes; two liquid distribution pipes are provided on both sides of the upper mold; a branch pipe 1 is fixedly installed on each of the inlet pipe, the outlet pipe and the two connecting pipes; one end of each of the four branch pipe 1s is fixedly connected to the corresponding liquid distribution pipe; and multiple branch pipes 2 are fixedly installed on each of the four liquid distribution pipes; the multiple branch pipes 2 are fixedly connected to the corresponding upper mold and the lower mold; and the multiple branch pipes 2 are connected to the corresponding cooling holes.

[0007] Preferably, a first station plate and a second station plate are fixedly installed at the bottom of the support platform, the cooling cylinder is fixedly connected to the second station plate, the bottom of the first station plate and the second station plate are fixedly installed with the same coolant tank, a first water pump is fixedly installed on the first station plate, one end of a water pipe is fixedly installed on the outlet of the first water pump, and the other end is fixedly connected to the inlet pipe, and one end of a pumping pipe is fixedly installed on the inlet of the first water pump, and the other end is fixedly connected to the bottom of the coolant tank.

[0008] Preferably, a second water pump is fixedly installed on the outer wall of the cooling cylinder. One end of a water guide pipe is fixedly installed on the inlet of the second water pump, and the other end is fixedly connected to the transfer water tank. One end of a drain pipe is fixedly installed on the outlet of the second water pump, and the other end is fixedly connected to the cooling cylinder. A one-way valve is provided on the drain pipe.

[0009] Preferably, an installation strip is fixedly installed on the top of the cooling cylinder by bolts, an agitator is rotatably installed on the bottom of the installation strip, a motor is fixedly installed on the top of the installation strip, and the output shaft of the motor is fixedly connected to the top of the agitator.

[0010] Preferably, a support plate is fixedly installed on the second station plate, the top of the support plate is fixedly connected to the transfer water tank, and two cooling fans are fixedly installed at the bottom of the support plate, with the cooling fans located above the cooling cylinder.

[0011] Preferably, an overflow pipe is fixedly installed on the cooling cylinder, a serpentine tube is fixedly installed at the bottom end of the overflow pipe, the bottom end of the serpentine tube is fixedly connected to the coolant tank, and heat dissipation fins are fixedly installed on both sides of the serpentine tube.

[0012] Preferably, a back plate is fixedly installed on the second station plate, and a plurality of second cooling fans are fixedly installed on the back plate, the second cooling fans corresponding to the heat dissipation fins.

[0013] Compared with related technologies, the water-cooling structure for plastic molds provided by this utility model has the following beneficial effects:

[0014] This utility model provides a water-cooling structure for plastic molds. By passing the used coolant into a cooling cylinder for initial cooling and then through a serpentine tube for secondary cooling, the temperature of the coolant can be reduced to a usable temperature, thereby increasing the service life of the coolant and the number of times it can be recycled. This allows the coolant to be effectively recycled, thus reducing the cooling costs for the upper and lower molds. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the water-cooling structure for plastic molds provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the rear oblique tilting structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cooling hole structure in this utility model;

[0018] Figure 4This is a schematic diagram of the connection structure of the cooling cylinder, overflow pipe and serpentine pipe in this utility model.

[0019] Numbered in the diagram: 1. Upper mold; 2. Lower mold; 3. Support platform; 4. Station plate one; 5. Station plate two; 6. Coolant tank; 7. Cooling hole; 8. Inlet pipe; 9. Outlet pipe; 10. Corrugated pipe; 11. Connecting pipe; 12. Liquid distribution pipe; 13. Branch pipe one; 14. Branch pipe two; 15. Water pump one; 16. Water pipe; 17. Pumping pipe; 18. Transfer water tank; 19. Cooling cylinder; 20. Water pump two; 21. Water guide pipe; 22. Drain pipe; 23. Cooling fan one; 24. Overflow pipe; 25. Serpentine pipe; 26. Heat dissipation fins; 27. Cooling fan two. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of the water-cooling structure for plastic molds provided by this utility model; Figure 2 This is a schematic diagram of the rear oblique tilting structure of this utility model; Figure 3 This is a schematic diagram of the cooling hole structure in this utility model; Figure 4 This is a schematic diagram of the connection structure of the cooling cylinder, overflow pipe, and serpentine pipe in this utility model. The water-cooling structure of the plastic mold includes: multiple cooling holes 7 formed on the upper mold 1 and the lower mold 2, which are linearly distributed on the upper mold 1 and the lower mold 2 to ensure uniform cooling; a support platform 3 is fixed to the bottom of the lower mold 2, and a transfer water tank 18 is provided on one side of the support platform 3; a cooling cylinder 19 is provided below the transfer water tank 18, which can perform preliminary cooling of the used coolant; and water inlet pipes 8 and water outlet pipes 9 are respectively provided on both sides of the support platform 3. Corrugated pipes 10 are fixed to the top of both water inlet pipes 8 and water outlet pipes 9, and connecting pipes 11 are fixed to the top of both corrugated pipes 10. Two liquid distribution pipes 12 are provided on both sides of the upper mold 1, and branch pipes 13 are fixed on the water inlet pipe 8, water outlet pipe 9 and two connecting pipes 11. One end of each of the four branch pipes 13 is fixedly connected to the corresponding liquid distribution pipe 12. Multiple branch pipes 2 14 are fixed on each of the four liquid distribution pipes 12. Multiple branch pipes 2 14 are fixedly connected to the corresponding upper mold 1 and lower mold 2, and multiple branch pipes 2 14 are connected to the corresponding cooling holes 7. This forms a flow path for the coolant, allowing the coolant to enter the cooling holes 7 through the branch pipes 2 14, thereby cooling the upper mold 1 and lower mold 2.

[0022] In this method, in order to smoothly draw the coolant into the cooling hole 7 to form water cooling, a first station plate 4 and a second station plate 5 are fixed at the bottom of the support platform 3, and the cooling cylinder 19 is fixedly connected to the second station plate 5. The same coolant tank 6 is fixed at the bottom of the first station plate 4 and the second station plate 5. A first water pump 15 is fixed on the first station plate 4. One end of a water pipe 16 is fixed to the outlet of the first water pump 15, and the other end is fixedly connected to the inlet pipe 8. One end of a water suction pipe 17 is fixed to the inlet of the first water pump 15, and the other end is fixedly connected to the bottom of the coolant tank 6. Thus, when the first water pump 15 is started, coolant can be drawn for water cooling.

[0023] In this method, in order to draw the used coolant into the cooling cylinder 19 for cooling, a second water pump 20 is fixed on the outer wall of the cooling cylinder 19. One end of a water guide pipe 21 is fixed to the inlet of the second water pump 20, and the other end is fixedly connected to the transfer water tank 18. One end of a drain pipe 22 is fixed to the outlet of the second water pump 20, and the other end is fixedly connected to the cooling cylinder 19. A one-way valve is provided on the drain pipe 22. The one-way valve can prevent the coolant from flowing back into the drain pipe 22. The connection position of the drain pipe 22 and the cooling cylinder 19 is located at the lower part of the cooling cylinder 19. This allows the coolant to enter from the bottom of the cooling cylinder 19 during the cooling process, so that the cooled coolant can be discharged through the overflow pipe 24 mentioned below. The coolant that enters later still needs to be agitated and cooled for a period of time before being discharged through the overflow pipe 24. This ensures that each part of the coolant can be cooled evenly.

[0024] In the above method, in order to quickly cool the coolant, an installation strip is bolted to the top of the cooling cylinder 19, and an agitator is rotatably mounted at the bottom of the strip. A motor is fixed to the top of the installation strip, and its output shaft is fixedly connected to the top of the agitator. The agitator quickly agitates the coolant, increasing its contact area and frequency with air, thereby accelerating the cooling speed. In addition, a support plate is fixed on the second plate 5, and its top is fixedly connected to the transfer water tank 18. Two cooling fans 23 are fixed at the bottom of the support plate. These cooling fans 23 are located above the cooling cylinder 19, so that they correspond to the cooling cylinder 19 and can blow air onto the coolant while agitating it, further improving the cooling speed.

[0025] In this method, in order to perform secondary cooling of the coolant that has undergone preliminary cooling, an overflow pipe 24 is fixed on the cooling cylinder 19, and a serpentine pipe 25 is fixed at its bottom end. The bottom end of the serpentine pipe 25 is fixedly connected to the coolant tank 6, and heat dissipation fins 26 are fixed on both sides of the serpentine pipe 25. Through the heat absorption performance of the heat dissipation fins 26, the coolant can be cooled again. In order to further improve the cooling speed, a back plate is fixed on the plate 25, and multiple cooling fans 27 are fixed on it. The cooling fans 27 correspond to the heat dissipation fins 26 and can blow air onto the heat dissipation fins 26, thereby accelerating the heat dissipation speed. This indirectly improves the heat dissipation speed of the coolant.

[0026] The working principle of the water-cooled structure for plastic molds provided by this utility model is as follows:

[0027] In this invention, a liquid injection pipe is fixed to the top of the coolant tank 6, through which a sufficient amount of coolant can be injected into the coolant tank 6.

[0028] When cooling the upper mold 1 and the lower mold 2, water pump 15 is started, and coolant begins to enter the water pumping pipe 17. Then, it enters the multiple cooling holes 7 on the upper mold 1 and the lower mold 2 through the water pipe 16, the water inlet pipe 8, the corrugated pipe 10, the connecting pipe 11, the branch pipe 13 and the branch pipe 2 14, and flows through them. During the flow, most of the heat of the mold core can be carried away, thereby quickly cooling the upper mold 1 and the lower mold 2.

[0029] After cooling, the coolant is discharged into the transfer tank 18 through the outlet pipe 9. Then, water pump 20, cooling fan 1 23, cooling fan 27, and the motor are started. At this time, under the operation of water pump 20, the coolant in the transfer tank 18 is drawn into the cooling cylinder 19. Simultaneously, driven by the motor, the agitator rotates, thus agitating the used coolant and increasing its cooling rate. During the agitation process, cooling fan 1 23 also rapidly blows air onto the coolant, further increasing the cooling speed. Meanwhile, water pump 20... With continuous operation of the cooling coil 19, the coolant level in the cooling cylinder 19 gradually rises until it is level with the overflow pipe 24. The excess coolant then flows into the serpentine pipe 25 through the overflow pipe 24. At this point, the coolant is further cooled by the heat absorption of the heat dissipation fins 26. Meanwhile, the cooling fan 27 continues to act on the heat dissipation fins 26, which quickly eliminates the temperature on the heat dissipation fins 26, thereby further improving the heat absorption effect on the coolant. Finally, the cooled coolant returns to the coolant tank 6 and can be pumped out for use again.

[0030] Compared with related technologies, the water-cooling structure for plastic molds provided by this utility model has the following beneficial effects:

[0031] This utility model provides a water-cooling structure for plastic molds. By passing the used coolant into the cooling cylinder 19 for initial cooling and then through the serpentine tube 25 for secondary cooling, the temperature of the coolant can be reduced to a usable temperature, thereby increasing the service life of the coolant and increasing the number of times the coolant can be recycled. This allows the coolant to be effectively recycled, thus reducing the cooling cost for the upper mold 1 and the lower mold 2.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water-cooling structure for a plastic mold, comprising a plurality of cooling holes formed on an upper mold and a lower mold, characterized in that, A support platform is fixedly installed at the bottom of the lower mold. A transfer water tank is provided on one side of the support platform. A cooling cylinder is provided below the transfer water tank. Water inlet pipes and water outlet pipes are respectively provided on both sides of the support platform. Corrugated pipes are fixedly installed at the top of the water inlet pipes and water outlet pipes. Connecting pipes are fixedly installed at the top of the two corrugated pipes. Two liquid distribution pipes are provided on both sides of the upper mold. Branch pipes are fixedly installed on the water inlet pipes, water outlet pipes, and two connecting pipes. One end of each of the four branch pipes is fixedly connected to the corresponding liquid distribution pipe. Multiple branch pipes are fixedly installed on each of the four liquid distribution pipes. Multiple branch pipes are fixedly connected to the corresponding upper mold and lower mold. Multiple branch pipes are connected to the corresponding cooling holes.

2. The water-cooled structure for plastic molds according to claim 1, characterized in that, The bottom of the support platform is fixedly equipped with a first station plate and a second station plate. The cooling cylinder is fixedly connected to the second station plate. The bottom of the first station plate and the second station plate are fixedly equipped with the same coolant tank. The first water pump is fixedly installed on the first station plate. One end of the water pipe is fixedly installed on the outlet of the first water pump, and the other end is fixedly connected to the inlet pipe. One end of the pumping pipe is fixedly installed on the inlet of the first water pump, and the other end is fixedly connected to the bottom of the coolant tank.

3. The water-cooled structure for plastic molds according to claim 1, characterized in that, A second water pump is fixedly installed on the outer wall of the cooling cylinder. One end of a water guide pipe is fixedly installed on the inlet of the second water pump, and the other end is fixedly connected to the transfer water tank. One end of a drain pipe is fixedly installed on the outlet of the second water pump, and the other end is fixedly connected to the cooling cylinder. A one-way valve is provided on the drain pipe.

4. The water-cooled structure for plastic molds according to claim 1, characterized in that, A mounting strip is fixedly installed on the top of the cooling cylinder by bolts. A stirring rod is rotatably installed on the bottom of the mounting strip. A motor is fixedly installed on the top of the mounting strip, and the output shaft of the motor is fixedly connected to the top of the stirring rod.

5. The water-cooled structure for plastic molds according to claim 2, characterized in that, A support plate is fixedly installed on the second station plate. The top of the support plate is fixedly connected to the transfer water tank. Two cooling fans are fixedly installed at the bottom of the support plate. The cooling fans are located above the cooling cylinder.

6. The water-cooled structure for plastic molds according to claim 2, characterized in that, An overflow pipe is fixedly installed on the cooling cylinder, and a serpentine tube is fixedly installed at the bottom end of the overflow pipe. The bottom end of the serpentine tube is fixedly connected to the coolant tank, and heat dissipation fins are fixedly installed on both sides of the serpentine tube.

7. The water-cooled structure for plastic molds according to claim 6, characterized in that, A back plate is fixedly installed on the second station plate, and multiple cooling fans are fixedly installed on the back plate, with the cooling fans corresponding to the heat dissipation fins.

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