Intelligent temperature control device for plastic mold

Abstract

The invention discloses an intelligent temperature control device for a plastic mold, and belongs to the technical field of plastic product production, the intelligent temperature control device comprises a cold return box and an air inlet pipe, the top end of the cold return box is provided with a liquid guide pipe for guiding backflow water into the cold return box, the middle of the cold return box is provided with a flow diffusion assembly, and the bottom of the cold return box is provided with a flow guide assembly; an air dispersing assembly is arranged in the flow guide assembly, and a flow pushing assembly is arranged between the air inlet pipe and the flow guide assembly; backflow water is beaten through the flow dispersing assembly, so that the backflow water is distributed and dispersed, water flows downwards in an S-shaped path through the arranged flow guiding assembly, heat in the backflow water is further blown and discharged through air flow, the duration of heat exchange between the backflow water and external air is prolonged, the heat dissipation balance is comprehensively improved, and the heat dissipation efficiency is improved. And the airflow is conveyed into the backflow water through the arranged airflow dispersion assembly, bubbles continuously rise and turn over in the water flow, the turbulence of the water flow is intensified through the bubbles, and the rapid cooling efficiency of the backflow water is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic product production, in particular to an intelligent temperature control device for a plastic mold. BACKGROUND

[0002] Plastic is mainly composed of carbon, oxygen, hydrogen, nitrogen and other organic or inorganic elements, and the finished product is a solid. In the manufacturing process, it is a molten liquid, so it can be heated to melt, pressurized to flow, and cooled to solidify to form various shapes. The plastic mold is a tool for producing plastic products, which is composed of several parts. The combination has a molding core. The molten plastic is injected into the molding core and cooled and shaped. Then the upper and lower molds are separated to facilitate the removal of the molded plastic product.

[0003] For example, Chinese patent publication CN212736912U discloses a high-efficiency plastic injection mold, which comprises a bottom box, a fixed mold base, a protection box and a movable mold base. The structure of the present application is simple and reasonable. When working, the motor drives the driving pulley, the driven pulley and the screw rod to rotate, so that the movable mold base drives the movable mold to move downward. The guide rod first contacts the buffer block to reduce the force during mold closing and ensure the accuracy of the mold closing position. The first spring drives the first connecting plate to move upward. The external raw material supply device is injected through the gate. The liquid pump cools the injection molded part through the water inlet pipeline. After cooling through the heat dissipation fins, it flows back to the water storage tank, which is convenient for saving water resources.

[0004] For example, Chinese patent publication CN213471940U discloses a plastic mold for a hardware punch press, which comprises a lower mold base. The upper ends of the left and right sides of the lower mold base are fixedly connected with guide rods. An upper mold base penetrates between the two guide rods. The lower mold base and the upper mold base are both hollow structures. The right side of the lower mold base is provided with a water tank made of copper. A reflux pipe is fixedly connected between the lower mold base and the water tank. A water pump is fixedly installed at the upper end of the water tank. The right end of the water pump is fixedly connected with a water suction pipe. The present application is provided with electronic refrigerating fins, heat dissipation fins, a water tank, a water pump, a water suction pipe, a reflux pipe, a guide pipe and a water inlet pipe. The water pump is started to circulate the water in the upper mold base and the lower mold base, and the electronic refrigerating fins can cool the water.

[0005] As Chinese patent publication No. CN209224519U discloses a cooling device for plastic mold, comprising a base, a cooling water tank is fixedly arranged on the top of the base, a lower mold base is fixedly arranged on the top of the cooling water tank, a water tank is arranged in the lower mold base, a first heat sink is uniformly fixed in the inner cavity of the water tank, a water pump is symmetrically fixed on the top of the cooling water tank on both sides of the lower mold base, the cooling liquid in the inner cavity of the cooling water tank is transported to the inner cavity of the water tank by the water pump, and the cooling liquid is atomized and sprayed out by the atomizing nozzle. The cooling liquid can be quickly cooled to the plastic mold, the outlet hole is arranged to make the cooling liquid flow back to the inner cavity of the cooling water tank, the circulation of the cooling liquid can be realized, the first heat sink is arranged to increase the contact area between the lower mold base and the cooling liquid, and the cooling efficiency of the plastic mold can be further improved. The second heat sink is arranged to improve the heat dissipation efficiency of the cooling liquid in the inner cavity of the cooling water tank.

[0006] The above-mentioned plastic mold in the prior art mainly cools the cooling backflow water through heat dissipation fins or refrigeration components. The backflow water cooling method is relatively single, the backflow water cooling uniformity is insufficient, and the cooling is not sufficient. The special condensing system for cooling the backflow water in the prior art has a relatively complex overall structure, high energy consumption, and high investment and maintenance costs. Therefore, it is necessary to provide a plastic mold device with a mold cooling liquid back-cooling structure which can uniformly and sufficiently cool the mold cooling backflow water, quickly back-cool, and has a relatively simple structure, so as to reduce equipment investment, save costs, stabilize the quality of plastic product finished products, and has great significance.

[0007] Therefore, it is necessary to provide a plastic mold intelligent temperature control device to solve the above technical problems. SUMMARY

[0008] The purpose of the present application is to provide a plastic mold intelligent temperature control device to solve the problems in the background art.

[0009] To achieve the above-mentioned purpose, the technical problems are solved by the following scheme: a plastic mold intelligent temperature control device, comprising a back-cooling tank and an air inlet pipe, a liquid guide pipe for guiding the backflow water into the back-cooling tank is arranged at the top end of the back-cooling tank, a flow distribution assembly for beating and distributing the backflow water is arranged in the middle part of the back-cooling tank, a flow guide assembly for expanding the backflow water cooling process is arranged at the bottom of the back-cooling tank, and an air distribution assembly connected with the air inlet pipe is arranged in the flow guide assembly to further assist the backflow water cooling by air flow.

[0010] As a further scheme of the present application, the flow distribution assembly comprises: a shaft rod arranged in the middle part of the back-cooling tank and rotationally connected with the side wall of the back-cooling tank; a plurality of first leaf plates fixed on the side surface of the shaft rod; a liquid outlet pipe in communication with the end of the liquid guide pipe and located at the edge of the first leaf plate.

[0011] As a further scheme of the present application, the air dispersing assembly further comprises: a plurality of through holes formed on the side surface of the first lamella; a plurality of tooth grooves arranged at the edge of the first lamella.

[0012] As a further scheme of the present application, the air guiding assembly comprises: an inner seat fixed to the bottom of the regenerative cooler; a plurality of inner flow plates fixed inside the inner seat and arranged in a staggered manner.

[0013] As a further scheme of the present application, the air guiding assembly further comprises: a first cavity formed inside the inner seat; a gas conveying pipe in communication with the first cavity; a plurality of blow-off holes formed on the inner side wall of the inner seat and located between two adjacent inner flow plates.

[0014] As a further scheme of the present application, the air guiding assembly further comprises: an exhaust port formed on the side surface of the regenerative cooler, the exhaust port being in communication with the inner seat and having a dust filter screen installed therein.

[0015] As a further scheme of the present application, the air dispersing assembly comprises: a second cavity formed inside the inner flow plate and in communication with the first cavity; a plurality of gas outlet holes formed on the top surface of the inner flow plate and in communication with the second cavity.

[0016] As a further scheme of the present application, the air dispersing assembly further comprises: a plurality of blocking columns fixed to the top surface of the inner flow plate.

[0017] As a further scheme of the present application, the air guiding assembly is provided between the air inlet pipe and the air guiding assembly, and a flow pushing assembly is arranged to drive the air dispersing assembly to rotate, the flow pushing assembly comprising: a cover fixed to the outer side wall of the regenerative cooler; a ring fixed to one end of the shaft; a plurality of second lamellas fixed to the side surface of the ring and located inside the cover, the air inlet pipe and the gas conveying pipe being in communication with the inside of the cover, and the ports of the air inlet pipe and the gas conveying pipe being aligned with the edge of the second lamella.

[0018] Compared with the prior art, the present application has the following advantages: 1. The diffuser component is used to beat the return water, so that the return water is dispersed and reduced the heat accumulation in the local water flow. The water flow is broken up and refined, which greatly expands the contact area with the air. More heat can be quickly transferred to the air, effectively improving the heat exchange efficiency and accelerating the return water cooling process. It can effectively shorten the time for the mold return water to reach the ideal cooling temperature, making the overall heat dissipation of the mold balanced. At the same time, it effectively reduces the probability of mineral precipitation and adhesion in the cooling water, reducing the cleaning and maintenance costs. 2. The diversion component is set to make the water flow in an "S"-shaped path, and the heat in the return water flowing in the "S"-shaped path is further blown out by the airflow, effectively extending the return water flow path, greatly expanding the flow route, and extending the time for heat exchange between the return water and the outside air, allowing the return water to enter the mold system at a more ideal low temperature state. At the same time, during the "S"-shaped flow of the water, due to continuous collisions, a certain amount of turbulence is formed inside the return water. This turbulence promotes the full mixing of cold and hot fluids, avoids local overheating, makes the overall water temperature more uniform, comprehensively improves the heat dissipation balance, further improves the effect and efficiency of return water heat dissipation, effectively prevents mold stress concentration caused by large local temperature differences, improves plastic molding accuracy, and improves mold reliability; 3. The airflow is delivered to the return water flowing in an "S"-shaped path through the provided air dispersion component. The bubbles continuously rise and churn in the water flow, thereby further dissipating the heat in the return water through the bubbles. The disturbance of the bubbles intensifies the turbulence of the water flow. In addition, the gas has a lower heat capacity than water and can quickly carry heat away, further shortening the heat transfer time and further improving the rapid cooling efficiency of the return water. At the same time, the flowing gas increases the oxygen content of the water body, changing the anaerobic environment suitable for microorganisms, effectively reducing the breeding and reproduction of bacteria and algae in the return waterway, and stabilizing the water quality. 4. The flow push component is set to reduce the flow rate of the air flow flowing in the guide component, so that the flow rate of the air flow blown out by the guide component is lower, which prolongs the residence time of the bubbles to a certain extent, allowing the heat in the return water to be more fully dissipated to the outside world, helping to dissipate heat while avoiding excessive flow rate, reducing noise and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall front view structure of the present invention; Figure 2 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic perspective view of the overall cross-sectional structure of the present invention; Figure 4 It is a schematic front view of the overall cross-sectional structure of the present invention; Figure 5 Partial structure diagram of the flow distribution assembly of the present application Figure 1 ; Figure 6 Partial structure diagram of the flow distribution assembly of the present application Figure 7 Partial structure diagram of the flow distribution assembly of the present application Figure 2 ; Figure 8 Partial structure diagram of the flow distribution assembly of the present application Figure 9 Partial structure diagram of the flow distribution assembly of the present application Figure 10 Partial structure diagram of the flow distribution assembly of the present application Figure 9 Enlarged view of structure at A in the present application Figure 11 Partial structure diagram of the flow distribution assembly of the present application

[0020] In the drawings, the components represented by the respective reference numerals are listed as follows: 1, flow distribution assembly; 101, shaft; 102, first vane; 103, tooth groove; 104, through hole; 2, flow guide assembly; 201, built-in seat; 202, inner flow plate; 203, first cavity; 204, blow-off hole; 205, gas conveying pipe; 206, exhaust port; 3, gas distribution assembly; 301, second cavity; 302, gas outlet hole; 303, blocking column; 4, flow pushing assembly; 401, ring; 402, second vane; 403, cover; 5, cooling box; 6, air inlet pipe; 7, liquid guide pipe; 8, water storage tank; 9, controller; 10, liquid supply pump; 11, liquid outlet pipe; 13, rack; 14, upper die; 15, temperature sensor; 16, cooling waterway; 17, lower die; 18, feed pipe. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with examples.

[0022] Please refer to Figures 1-11The application provides an intelligent temperature control device for a plastic mold, which comprises a back cooling box 5 and an air inlet pipe 6. A liquid guide pipe 7 is arranged at the top end of the back cooling box 5 and is used for guiding backflow water into the back cooling box 5. A flow distribution assembly 1 is arranged at the middle part of the back cooling box 5 and is used for beating and distributing the backflow water. A flow guide assembly 2 is arranged at the bottom of the back cooling box 5 and is used for extending the heat dissipation process of the backflow water. The flow guide assembly 2 is internally provided with an air distribution assembly 3 which is connected with the air inlet pipe 6 and is used for further assisting the heat dissipation of the backflow water through air flow. A flow pushing assembly 4 is arranged between the air inlet pipe 6 and the flow guide assembly 2 and is used for driving the flow distribution assembly 1 to rotate. A rack 13 is arranged at one side of the back cooling box 5. An upper mold 14 and a lower mold 17 are arranged in the rack 13. A hydraulic push rod is fixed at the top end of the rack 13 and is used for driving the upper mold 14 to move up and down. Cooling water channels 16 are arranged in the upper mold 14 and the lower mold 17. A water storage box 8 is fixed at the bottom of the back cooling box 5 and is in communication with the inside of the back cooling box 5. A liquid supply pump 10 is arranged at one side of the back cooling box 5. The input end of the liquid supply pump 10 is connected with the inside of the water storage box 8. The output end of the liquid supply pump 10 is in communication with the input end of the cooling water channels 16. The output end of the cooling water channels 16 is in communication with the liquid guide pipe 7. Temperature sensors 15 are arranged in the upper mold 14 and the lower mold 17. A controller 9 is fixed on the outer wall of the water storage box 8 and is electrically connected with the temperature sensors 15 and the liquid supply pump 10. In use, the upper die 14 and the lower die 17 are pressed tightly by the liquid push rod, the plastic melt is injected into the cavity of the upper die 14 and the lower die 17 through the feeding pipe 18 at high pressure and high speed, and the plastic product is obtained after cooling and solidification. In this process, the cooling water in the water storage tank 8 is delivered into the cooling water channel 16 by the liquid supply pump 10, the plastic product in the cavity is cooled by the cooling water flowing in the cooling water channel 16, the cooling and solidification speed of the plastic product is improved, the heat absorbed by the cooling backflow water is delivered to the top end of the back cooling tank 5 through the liquid guide pipe 7, and flows down from the top end of the back cooling tank 5. In the process of flowing down, the backflow water is hit by the set flow distribution assembly 1, so that the backflow water is branched and scattered, the local heat accumulation of the water flow is reduced, the water flow is scattered and refined, the contact area with air is greatly expanded, more heat is quickly transferred to the air, the heat exchange efficiency is effectively improved, the cooling process of the backflow water is accelerated, the time for the mold backflow water to reach the ideal cooling temperature is effectively shortened, the overall heat dissipation of the mold is balanced, the probability of mineral deposition and adhesion in the cooling water is effectively reduced, and the cleaning and maintenance cost is reduced. The backflow water dispersed by the flow distribution assembly 1 continues to flow into the flow guide assembly 2, the water flow flows in an "S" shape path through the set flow guide assembly 2, and the heat in the backflow water flowing in the "S" shape path is further blown out by the air flow, the flow path of the backflow water is effectively prolonged, the flow route is greatly expanded, the heat exchange time between the backflow water and the outside air is prolonged, and the backflow water enters the mold system in a more ideal low temperature state. At the same time, in the process of flowing in the "S" shape, the backflow water forms a certain turbulence through continuous collision, the turbulence promotes the mixing of hot and cold fluids, avoids local overheating, makes the overall water temperature more uniform, comprehensively improves the heat dissipation balance, further improves the effect and efficiency of backflow water heat dissipation, effectively prevents mold stress concentration caused by large local temperature difference, improves plastic forming precision, and improves mold reliability. The air flow is delivered into the backflow water flowing in the "S" shape path through the set air distribution assembly 3, the bubbles in the water flow continuously rise and churn, so that the heat in the backflow water is further dissipated through the bubbles, the water flow turbulence is intensified through the disturbance of the bubbles, the gas has lower heat capacity than water, can quickly carry heat to escape, further shortens the heat transfer time, further improves the rapid cooling efficiency of the backflow water, and at the same time, the flowing gas increases the oxygen content of the water body, changes the anaerobic environment suitable for microorganisms, effectively reduces the breeding of bacteria, algae and the like in the backflow waterway, and stabilizes the water quality. The flow of the gas flowing in the flow guide assembly 2 is reduced by the set flow pushing assembly 4, so that the flow rate of the air flow blown out by the flow guide assembly 2 is low, the bubble residence time is prolonged to a certain extent, the heat in the backflow water is more fully dissipated to the outside, and the heat dissipation is assisted while avoiding high flow rate and reducing noise and energy consumption. The backflow water after sufficient back cooling flows into the water storage tank 8 for storage. The mold temperature is detected by the temperature sensor 15 and a signal is sent to the controller 9. The controller 9 has a single-chip microcomputer, which can be a PIC16F81C, so that the controller 9 can adjust the working efficiency of the liquid supply pump 10 according to the signal sent by the temperature sensor, and intelligently control the cooling temperature and cooling efficiency of the mold. That is, when the temperature sensor 15 detects that the mold temperature is higher than the preset value of the controller 9, the temperature sensor 15 sends a signal, and after the controller 9 receives the signal, it controls the liquid supply pump 10 to work faster. Similarly, when the temperature sensor 15 detects that the mold temperature is lower than the preset value of the controller 9, the temperature sensor 15 sends a signal, and after the controller 9 receives the signal, it controls the liquid supply pump 10 to work normally.

[0023] Further as shown in Figure 3 、 Figure 4 、 Figure 5 and Figure 7 , it is worth noting that the flow distribution assembly 1 includes a shaft 101 arranged in the middle of the back cooling tank 5 and rotatably connected to the side wall of the back cooling tank 5. The side surface of the shaft 101 is fixed with a plurality of first leaf plates 102 arranged in a ring shape. The end of the liquid guide pipe 7 is communicated with a liquid outlet pipe 11 located at the edge of the first leaf plate 102. The bottom of the liquid outlet pipe 11 is provided with a plurality of water outlet holes arranged at equal intervals. The cooled backflow water is transported into the liquid outlet pipe 11 through the liquid guide pipe 7, and flows into the first leaf plate 102 through the plurality of water outlet holes in the bottom of the liquid outlet pipe 11. During the continuous flowing of the backflow water, the plurality of first leaf plates 102 are driven by the rotating shaft 101 to hit the backflow water, so that the backflow water is distributed and dispersed, the local water flow heat accumulation is reduced, the water flow is dispersed and refined, the contact area with air is greatly expanded, more heat is quickly transferred to the air, the heat exchange efficiency is effectively improved, the backflow water cooling process is accelerated, the time for the mold backflow water to reach the ideal cooling temperature is effectively shortened, the mold overall heat dissipation is balanced, and the probability of mineral deposition and adhesion in the cooling water is effectively reduced, thereby reducing the cleaning and maintenance cost.

[0024] Further as shown in Figure 1 、 Figure 3 、 Figure 4 and Figure 8As shown, it is worth noting that the flow guide assembly 2 comprises an inner seat 201 fixed to the bottom of the cold box 5, and a plurality of inner flow plates 202 are fixed to the inner side wall of the inner seat 201 in a staggered distribution, the inner flow plates 202 are arranged obliquely, and the lower end of the inner flow plate 202 is located above the higher end of the adjacent inner flow plate 202. The return water dispersed by the first leaf plate 102 continues to flow into the inner seat 201, and the water flow is in an "S" shape path by the plurality of inner flow plates 202, effectively extending the flow path of the return water, greatly expanding the flow route, prolonging the time of heat exchange between the return water and the external air, and making the return water enter the mold system in a more ideal low-temperature state. At the same time, during the "S" shape flow process of the water flow, a certain turbulence is formed inside the return water through continuous collision, which promotes the full mixing of cold and hot fluids, avoids local overheating, makes the overall water temperature more uniform, comprehensively improves the heat dissipation uniformity, further improves the effect and efficiency of the return water heat dissipation, effectively prevents the mold stress concentration caused by large local temperature difference, improves the plastic forming precision, and improves the reliability of the mold.

[0025] Further as shown in Figure 9 , it is worth noting that the inner seat 201 is internally provided with a first cavity 203, the first cavity 203 is communicated with a gas conveying pipe 205, and the inner side wall of the inner seat 201 is provided with a blowout hole 204 communicated with the first cavity 203, and the blowout hole 204 is provided with a plurality of groups and is distributed between the adjacent two inner flow plates 202. The gas flow is conveyed into the first cavity 203 through the gas conveying pipe 205, and is uniformly blown out to the top end of the inner flow plate 202 through the plurality of blowout holes 204, so as to further blow and discharge the heat in the return water flowing in the "S" shape path through the gas flow, and improve the cooling efficiency of the return water.

[0026] Further as shown in Figure 9 and Figure 10As shown, it is worth noting that the air dispersion assembly 3 includes a second cavity 301 opened in the inner flow plate 202 and communicated with the first cavity 203, and a plurality of air outlets 302 are opened in the top surface of the inner flow plate 202 and communicated with the second cavity 301; in specific work, the airflow in the first cavity 203 is synchronously delivered to the inside of the plurality of inner flow plates 202, and is uniformly blown out to the water flow flowing on the top surface of the inner flow plate 202 through the second cavity 301 and the plurality of air outlets 302, forming the airflow delivered to the reflux water flowing in the "S" shape path, and the bubbles in the airflow continuously rise and churn, so that the heat in the reflux water is further dissipated by the bubbles, the water flow is intensified by the disturbance of the bubbles, and the gas has a lower heat capacity compared with water, can quickly carry heat to escape, further shorten the heat transfer time, further improve the reflux water rapid cooling efficiency, and the flowing gas increases the oxygen content of the water body, changes the anaerobic environment suitable for microorganisms, effectively reduces the breeding of bacteria, algae and the like in the reflux waterway, and stabilizes the water quality.

[0027] Further as shown in Figure 2 、 Figure 5 、 Figure 6 and Figure 7 , it is worth noting that the air dispersion assembly 3 includes a second cavity 301 opened in the inner flow plate 202 and communicated with the first cavity 203, and a plurality of air outlets 302 are opened in the top surface of the inner flow plate 202 and communicated with the second cavity 301; in specific work, the airflow in the first cavity 203 is synchronously delivered to the inside of the plurality of inner flow plates 202, and is uniformly blown out to the water flow flowing on the top surface of the inner flow plate 202 through the second cavity 301 and the plurality of air outlets 302, forming the airflow delivered to the reflux water flowing in the "S" shape path, and the bubbles in the airflow continuously rise and churn, so that the heat in the reflux water is further dissipated by the bubbles, the water flow is intensified by the disturbance of the bubbles, and the gas has a lower heat capacity compared with water, can quickly carry heat to escape, further shorten the heat transfer time, further improve the reflux water rapid cooling efficiency, and the flowing gas increases the oxygen content of the water body, changes the anaerobic environment suitable for microorganisms, effectively reduces the breeding of bacteria, algae and the like in the reflux waterway, and stabilizes the water quality.

[0028] This solution has the following working process: the cooling return water after absorbing heat is transported to the liquid outlet pipe 11 through the liquid guide pipe 7, and flows into the first blade 102 through the multiple water outlet holes at the bottom of the liquid outlet pipe 11, and the cold air is transported to the inside of the cover 403 through the air inlet pipe 6 and then transported to the air supply pipe 205, so that the second blade 402 is pushed by the air flow, and then the shaft 101 and the first blade 102 are driven to rotate. In the process of continuous downward flow of the return water, the return water is hit by the rotating multiple first blades 102, so that the return water is divided and dispersed, reducing the occurrence of local water flow heat accumulation and accelerating the return water to dissipate heat and cool down; the return water dispersed by the first blade 102 continues to flow down to the built-in seat 201, and is set through the multiple internal flow The plate 202 causes the water to flow downward in an "S"-shaped path, extending the time for heat exchange between the return water and the outside air, and transporting air flow into the first cavity 203 through the air pipe 205, and evenly blowing it out to the top of the inner flow plate 202 through multiple blowing holes 204, so that the heat in the return water flowing in the "S"-shaped path is further blown out through the air flow; the air flow inside the first cavity 203 is synchronously transported to the interior of multiple inner flow plates 202, and evenly blown out into the water flowing on the top surface of the inner flow plate 202 through the second cavity 301 and multiple air outlet holes 302, forming a process of transporting air flow into the return water flowing in an "S"-shaped path, and the bubbles in the water flow continue to rise and churn, so that the heat in the return water is further dissipated through the bubbles.

[0029] Further as Figure 11 As shown, it is worth mentioning that an exhaust port 206 is provided on the side of the return cold box 5, the exhaust port 206 is connected to the interior of the built-in seat 201 and a dust filter plate is installed in the exhaust port 206; during specific operation, the heat inside the return cold box 5 can be quickly dissipated through the multiple exhaust ports 206.

[0030] Further as Figure 5 and Figure 7 As shown, it is worth mentioning that a plurality of through holes 104 are provided on the side surface of the first blade 102 and a plurality of tooth grooves 103 are provided at an equal distance. In specific operation, the plurality of through holes 104 and tooth grooves 103 are provided to effectively increase the dispersion and refinement effect of the first blade 102 on the water flow, and further improve the heat dissipation and cooling rate of the reflux water.

[0031] Further as Figure 9 and Figure 10 As shown, it is worth mentioning that a plurality of baffles 303 are fixed on the top surface of the inner flow plate 202, and the plurality of baffles 303 and the plurality of air outlets 302 are staggered with each other; during specific operation, the baffles 303 are set to further divert the water flow on the top surface of the inner flow plate 202, thereby further improving the disturbance of the flowing water flow.

[0032] In summary: through the setting of the flow dispersion assembly 1, the backflow water is hit to make the backflow water branch and disperse, reduce the local water flow heat accumulation, make the water flow be scattered and refined, greatly expand the contact area with air, more heat can be quickly transferred to the air, effectively improve the heat exchange efficiency, speed up the backflow water cooling process, can effectively shorten the time for the mold backflow water to reach the ideal cooling temperature, make the whole mold heat dissipation balanced, at the same time effectively reduce the probability of mineral deposition and adhesion in the cooling water, reduce the cleaning and maintenance cost; the backflow water dispersed by the flow dispersion assembly 1 continues to flow into the flow guide assembly 2, and through the setting of the flow guide assembly 2, the water flow presents an "S" shape path flowing downward, and the heat in the backflow water flowing in the "S" shape path is further blown out by the airflow, effectively prolonging the flow path of the backflow water, greatly expanding the flow route, prolonging the time for the backflow water to exchange heat with the outside air, and making the backflow water enter the mold system in a more ideal low temperature state, at the same time, in the "S" shape flowing process of the water flow, through continuous collision, a certain turbulence is formed inside the backflow water, which promotes the full mixing of cold and hot fluids, avoids local overheating, makes the overall water temperature more uniform, comprehensively improves the heat dissipation balance, further improves the effect and efficiency of backflow water heat dissipation, effectively prevents mold stress concentration caused by large local temperature difference, improves the plastic forming precision, and improves the reliability of the mold; the airflow is delivered into the backflow water flowing in the "S" shape path by the setting of the air dispersion assembly 3, the bubbles in the water flow continuously rise and tumble, so that the heat in the backflow water is further dissipated through the bubbles, the turbulence of the water flow is intensified through the disturbance of the bubbles, and the gas has a lower heat capacity than water, can quickly carry heat to escape, further shorten the heat transfer time, further improve the rapid cooling efficiency of the backflow water, at the same time, the flowing gas increases the oxygen content of the water body, changes the anaerobic environment suitable for microorganisms, effectively reduces the breeding of bacteria, algae and the like in the backflow waterway, and stabilizes the water quality; through the setting of the flow pushing assembly 4, the flow rate of the airflow flowing in the flow guide assembly 2 is reduced, so that the airflow blown out by the flow guide assembly 2 has a low flow rate, the bubble residence time is prolonged to a certain extent, the heat in the backflow water is more fully dissipated to the outside, and the heat dissipation is assisted while avoiding excessive flow rate and reducing noise and energy consumption.

[0033] The controller 9, the liquid supply pump 10 and the temperature sensor 15 can be purchased in the market, the controller 9, the liquid supply pump 10 and the temperature sensor 15 are provided with a power supply, which belongs to mature technology in the field and has been fully disclosed, so the description is not repeated here.

Claims

1. An intelligent temperature control device for a plastic mold, comprising a cold box (5) and an air inlet pipe (6), characterized in that, The top end of the return cooling tank (5) is provided with a liquid guide pipe (7) for guiding the return water into the return cooling tank (5), the middle part of the return cooling tank (5) is provided with a flow distribution assembly (1) for beating and distributing the return water, and the bottom of the return cooling tank (5) is provided with a flow guide assembly (2) for extending the heat dissipation process of the return water.

2. The intelligent temperature control device for plastic mold according to claim 1, characterized in that, The flow distribution assembly (1) comprises: a shaft rod (101) arranged in the middle part of the return cooling tank (5) and rotationally connected with the side wall of the return cooling tank (5); a plurality of first leaf plates (102) fixed on the side surface of the shaft rod (101); an outlet pipe (11) in communication with the end of the liquid guide pipe (7) and located at the edge of the first leaf plate (102).

3. The intelligent temperature control device for plastic mold according to claim 2, characterized in that, The flow distribution assembly (1) further comprises: a plurality of through holes (104) formed on the side surface of the first leaf plate (102); a plurality of tooth grooves (103) arranged at the edge of the first leaf plate (102).

4. The intelligent temperature control device for plastic mold according to claim 2, characterized in that, The flow guide assembly (2) comprises: an inner seat (201) fixed to the bottom of the return cooling tank (5); a plurality of inner flow plates (202) fixed inside the inner seat (201) and arranged in a staggered manner.

5. The intelligent temperature control device for plastic mold according to claim 4, wherein The flow guide assembly (2) further comprises: a first cavity (203) formed in the inner seat (201); a gas conveying pipe (205) in communication with the first cavity (203); a plurality of blowing holes (204) formed on the inner side wall of the inner seat (201) and located between adjacent two inner flow plates (202).

6. The intelligent temperature control device for plastic mold according to claim 5, wherein The flow guide assembly (2) further comprises: an exhaust port (206) formed on the side surface of the return cooling tank (5), the exhaust port (206) is in communication with the inner seat (201) and a dust filter screen is installed in the exhaust port (206).

7. The intelligent temperature control device for plastic mold according to claim 5, wherein The gas distribution assembly (3) comprises: a second cavity (301) formed in the inner flow plate (202) and in communication with the first cavity (203); a plurality of gas outlet holes (302) formed on the top surface of the inner flow plate (202) and in communication with the second cavity (301).

8. The intelligent temperature control device for plastic mold according to claim 7, wherein, The gas distribution assembly (3) further comprises: a plurality of blocking columns (303) fixed on the top surface of the inner flow plate (202).

9. The intelligent temperature control device for plastic mold according to claim 5, wherein, The flow pushing assembly (4) is arranged between the air inlet pipe (6) and the flow guide assembly (2) to drive the flow distribution assembly (1) to rotate, and the flow pushing assembly (4) comprises: a cover shell (403) fixed to the outer side wall of the return cooling tank (5); a ring sleeve (401) fixed to one end of the shaft rod (101); a plurality of second leaf plates (402) fixed on the side surface of the ring sleeve (401) and located inside the cover shell (403), the air inlet pipe (6) and the gas conveying pipe (205) are in communication with the inside of the cover shell (403), and the ports of the air inlet pipe (6) and the gas conveying pipe (205) are aligned with the edges of the second leaf plates (402).

Images