Efficient and energy-saving plastic mold cooling device

Abstract

The efficient and energy-saving plastic mold cooling device comprises an outer frame body, the outer frame body is used for providing a mounting cavity for a lower plastic mold, and cooling shells are fixed to the left outer wall and the right outer wall of the outer frame body correspondingly; and gear type single-side multi-area air blowing assemblies used for transversely blowing air to a mold cavity in the top end of the lower plastic mold are installed at the top ends of the cooling shells, and driven air cooling heat dissipation assemblies are arranged on the outer walls, away from each other, of the two cooling shells. According to the invention, a plurality of air blowing assemblies can be simultaneously driven to work by using one split belt wheel rotation driver, so that the power management complexity of the cooling device is simplified, the use quantity of motors is reduced, and low-temperature cooling liquid can quickly enter through the design of the in-line laminated multi-runner fluid director, so that the cooling efficiency is improved. And therefore, strong low-temperature airflow is formed, and cold air is continuously blown to the lower mold body.

Description

Technical Field

[0001] The present invention relates to the technical field of mold cooling, and specifically to an energy-efficient plastic mold cooling device. Background Art

[0002] The cooling device in a plastic mold, especially the cooling device on the outer side of the whole lower mold, controls the mold temperature, improves production efficiency, improves the quality of the finished product, and prolongs the mold life. Such a cooling device consists of a cooling channel, a coolant inlet and outlet, a coolant, a temperature control device, a fan, etc. A reasonably designed cooling channel can ensure the uniform flow of the coolant, covering all parts of the mold, and then effectively taking away the heat absorbed by the mold during the injection molding process. The coolant used in this process is usually water, oil or other coolants. During the flow process, through the principles of heat conduction and air convection, the heat of the mold is transferred to the coolant, so that the mold temperature can be reduced. After the coolant temperature rises during the flow, it is cooled by a cooling device and recycled again, so as to achieve continuous and effective temperature control;

[0003] For example, a highly efficient cooling device for a plastic mold disclosed in the authorized publication number CN219883214U includes a rear mounting plate. On both sides of the front end of the rear mounting plate, side mounting plates are respectively arranged. A negative pressure fan is installed inside the rear end of the rear mounting plate. At the bottom end of the front end of the rear mounting plate and the bottom end of the other side of the side mounting plate, two groups of fixing plates are respectively welded. Installation width adjustment structures are respectively arranged on both sides of the rear mounting plate. According to the actual width of the plastic mold to be installed, when adjustment is required, first loosen the fixing nut, move the position of the side mounting plate, and the sliding shaft on the side mounting plate displaces along the adjustment groove. When adjusted to the appropriate position, tighten the fixing nut to complete the fixation, and use the blowers on both sides to blow strong wind on the workpiece to quickly take away the heat on both sides. However, in order to enable the lower mold in the frame structure to dissipate heat sufficiently, the above technical solution mainly uses multiple fans to guide the air flow to reduce the mold temperature. At this time, the cooling device needs to supply power to the motor parts in multiple fans at the same time, and then configure a complex power management system. Moreover, the power consumption of high-power fans will directly affect the production cost. Especially when multiple sets of molds are running together for a long time, the power cost will be extremely high. Secondly, after the liquid cooling structure in the prior art is combined with the above technical solution, most of the pipeline parts of the existing liquid cooling structure are circular pipelines, and the inner wall area of the circular pipeline is relatively small. At this time, the flowing coolant needs to effectively exchange heat with the mold surface. Insufficient heat exchange area of the circular pipeline will further cause the coolant temperature to rise and reduce the cooling effect. Summary of the Invention

[0004] The purpose of the present invention is to provide an efficient and energy-saving plastic mold cooling device. The gear-type single-sided multi-zone air-blowing assembly on the left and right sides of the top of the outer frame is driven by a split pulley rotary drive to work, so that a strong wind area is formed at the opening of the lower mold in the outer frame for air-cooling heat dissipation. At the same time, the driven air-cooling heat dissipation assembly also works synchronously with the gear-type single-sided multi-zone air-blowing assembly and air-cools the body of the lower mold. During this process, the in-line laminar multi-channel deflector on the air outlet side of the driven air-cooling heat dissipation assembly allows the entry of low-temperature coolant, so that the driven air-cooling heat dissipation assembly continuously blows cold air downward on the body of the lower mold, in order to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An efficient and energy-saving plastic mold cooling device, including:

[0006] An outer frame, which is used to provide an installation cavity for the plastic lower mold. Cooling shells are fixed on the left and right outer walls of the outer frame, and a gear-type single-sided multi-zone air-blowing assembly for horizontally blowing air on the top cavity of the plastic lower mold is installed at the top of the cooling shell. Driven air-cooling heat dissipation assemblies are arranged on the outer walls of the two cooling shells away from each other. The driven air-cooling heat dissipation assembly works together with the gear-type single-sided multi-zone air-blowing assembly. An in-line laminar multi-channel deflector is installed inside the cooling shell on the air outlet side of the driven air-cooling heat dissipation assembly;

[0007] An S-shaped horizontal drain pipe, which is arranged at the bottom of the outer frame, and one end of the S-shaped horizontal drain pipe is connected to the liquid outlet end of one of the in-line laminar multi-channel deflectors, and a pumping and discharging unit is installed at the other end of the S-shaped horizontal drain pipe;

[0008] A split pulley rotary drive, which is installed on one side of the surface of the outer frame and is used to drive two symmetrical gear-type single-sided multi-zone air-blowing assemblies to work synchronously.

[0009] Preferably, a support plate is fixed at the bottom of the outer frame, a neutral part is arranged inside the outer frame below the support plate, the two S-shaped horizontal drain pipes are horizontally and symmetrically installed in the neutral part, and a two-way liquid inlet pipe group is installed at the liquid inlet ends of the two in-line laminar multi-channel deflectors.

[0010] Preferably, the two-way liquid inlet pipe group is composed of a three-way pipe, a U-shaped liquid inlet pipe, and a right-angle pipe. The U-shaped liquid inlet pipe is installed on the surface of the outer frame and the two ends of the U-shaped liquid inlet pipe extend in a direction away from the vertical central reference plane of the outer frame. The right-angle pipe is fixed at one end of the U-shaped liquid inlet pipe, and the end of the right-angle pipe away from the U-shaped liquid inlet pipe extends into the cooling shell and is connected to the liquid inlet end of the in-line laminar multi-channel deflector. The three-way pipe is installed on the U-shaped liquid inlet pipe, and a rectangular opening part is arranged on the outer wall of the outer frame close to the U-shaped liquid inlet pipe.

[0011] Preferably, the pumping and discharging unit includes a horizontal liquid collecting tank, a turbine pump, a C-shaped connecting pipe, and a switching valve. The horizontal liquid collecting tank is installed on the back of the outer frame body. One end of the S-shaped horizontal liquid discharging pipe, which is far away from the liquid outlet end of the in-line laminar multi-channel flow deflector, extends into the interior of the horizontal liquid collecting tank. The turbine pump is arranged on the back of the outer frame body on one side of the horizontal liquid collecting tank. A C-shaped connecting pipe is installed between the liquid inlet end of the turbine pump and the liquid discharging end of the horizontal liquid collecting tank, and a switching valve is installed on one side of the surface of the C-shaped connecting pipe.

[0012] Preferably, the in-line laminar multi-channel flow deflector includes a square upper flow pipe, a square lower flow pipe installed at the upper and lower positions inside the cooling shell, and a number of flow guiding plates installed at equal intervals between the square upper flow pipe and the square lower flow pipe. The flow guiding plates are used to connect the square upper flow pipe and the square lower flow pipe. One end of the right-angle pipe, which is far away from the U-shaped liquid inlet pipe, extends into the interior of the square upper flow pipe and is interconnected with the square upper flow pipe. One end of the S-shaped horizontal liquid discharging pipe, which is far away from the horizontal liquid collecting tank, extends into the interior of the square lower flow pipe and is interconnected with the square lower flow pipe.

[0013] Preferably, the distance between adjacent two flow guiding plates is 8 cm to 15 cm, and a number of flow channels for connecting the square upper flow pipe and the square lower flow pipe are arranged inside the flow guiding plates.

[0014] Preferably, the flow guiding plates are made of components of aluminum alloy material, the U-shaped liquid inlet pipe, the right-angle pipe, and the S-shaped horizontal liquid discharging pipe are all made of components of copper material, and the top view cross-sectional shape of the flow channels is rectangular.

[0015] Preferably, the gear-type single-sided multi-zone air blowing assembly includes a hollow secondary shell fixed at the opening position at the top of the cooling shell, secondary drive shafts symmetrically and rotatably installed on both sides inside the hollow secondary shell, and a middle-position helical gear shaft rotatably installed inside the hollow secondary shell between the two secondary drive shafts. One end of the surface of the secondary drive shaft is fixed with a secondary helical gear for meshing with the middle-position helical gear shaft. The hollow secondary shell is located above the square upper flow pipe, and an air guiding cylinder is fixed on the outer wall of one side of the hollow secondary shell close to the vertical central reference plane of the outer frame body. One end of each of the secondary drive shaft and the middle-position helical gear shaft extends into the interior of the air guiding cylinder and is fixed with a three-blade fan.

[0016] Preferably, one end of the middle-position helical gear shaft, which is far away from the three-blade fan, penetrates to the outside of the hollow secondary shell and is installed with a belt drive structure for driving the input shaft of the driven type air-cooled heat dissipation assembly to rotate.

[0017] Preferably, the split pulley rotary driver comprises a right-angled axis frame fixed on the outer wall on the same side of two gear-type single-sided multi-zone blower assemblies, a transverse axis rotatably mounted on the outer wall on one side of the two right-angled axis frames away from the hollow sub-shell, and a reduction motor mounted on the outer wall on one side of one of the hollow sub-shells, the driving shaft of the reduction motor is concentrically mounted on the transverse axis and the power connection is maintained through a keyway structure, a tensioning wheel is rotatably mounted on the outer wall on the side of the right-angled axis frame away from the reduction motor, a driven shaft is fixed to one end of the reduction motor below the tensioning wheel, a synchronous wheel is fixed to the same end of the driven shaft and the transverse axis, and a belt is wound between the synchronous wheel and the tensioning wheel.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the high-efficiency and energy-saving plastic mold cooling device is provided with an outer frame, a gear-type single-side multi-zone blast assembly symmetrically arranged on the left and right sides of the outer frame, an in-line layer plate multi-channel deflector, a driven air-cooling heat dissipation assembly, and a split pulley rotary driver providing power, etc., and the split pulley rotary driver drives the gear-type single-side multi-zone blast assembly on the left and right sides of the top of the outer frame to work, so that a strong wind area is formed at the lower mold opening in the outer frame for air cooling and heat dissipation, and at the same time the driven The air-cooling heat dissipation assembly also works synchronously with the gear-type single-side multi-zone blast assembly to cool the lower mold body. During this process, the in-line layer plate multi-channel guide on the air outlet side of the driven air-cooling heat dissipation assembly allows the low-temperature coolant to enter, so that the driven air-cooling heat dissipation assembly continuously blows cold air to the lower mold body; the gear-type single-side multi-zone blast assembly and the driven air-cooling heat dissipation assembly are uniformly driven by a split pulley rotary driver. At this time, a split pulley rotary driver can be used to drive multiple blast assemblies to work at the same time. This not only simplifies the complexity of power management, but also reduces the number of motors used, thereby reducing the subsequent electricity usage cost. In addition, since the number of required motors is reduced, the overall maintenance requirements of the device are also greatly reduced, which reduces the maintenance cost accordingly; secondly, the left-right symmetrical gear-type single-sided multi-zone blowing assembly forms strong wind areas on the left and right sides of the top of the outer frame to effectively concentrate the cold air into the opening of the lower mold, forming a strong airflow to quickly take away the heat from the mold surface, and the driven air-cooled heat dissipation assembly and the gear-type single-sided multi-zone blowing assembly work in coordination and synchronization to further enhance the cooling effect, and through the design of the in-line layer plate multi-channel guide, the low-temperature coolant can quickly enter, thereby forming a strong low-temperature airflow, and continuously blowing cold air to the lower mold body. In this process, the structure of the multi-channel guide makes the flow of the coolant more uniform, forming a larger heat exchange area, thereby improving the utilization efficiency of the coolant and improving the heat exchange cooling effect, ensuring the continuity and stability of the cooling process, so that the mold can maintain an ideal temperature state during a long injection molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1Schematic front view structure diagram of the present invention;

[0020] Figure 2 Schematic side view structure diagram of the present invention;

[0021] Figure 3 Schematic front sectional view structure diagram of the present invention;

[0022] Figure 4 Schematic three-dimensional structure diagram of the present invention Figure 1 ;

[0023] Figure 5 Schematic three-dimensional structure diagram of the present invention Figure 2 ;

[0024] Figure 6 Schematic three-dimensional sectional view structure diagram of the present invention Figure 1 ;

[0025] Figure 7 Schematic three-dimensional sectional view structure diagram of the present invention Figure 2 ;

[0026] Figure 8 Schematic three-dimensional structure diagram of the two-way liquid inlet pipe group of the second embodiment of the present invention;

[0027] Figure 9 Schematic three-dimensional structure diagram of the pumping and discharging unit of the second embodiment of the present invention;

[0028] Figure 10 Schematic three-dimensional sectional view structure diagram of the in-line layer plate type multi-channel flow deflector of the second embodiment of the present invention;

[0029] Figure 11 Schematic structure diagram of the gear type single-side multi-zone air blowing assembly of the third embodiment of the present invention;

[0030] Figure 12 Schematic structure diagram of the driven type air-cooled heat dissipation assembly of the third embodiment of the present invention;

[0031] Figure 13 Schematic structure diagram of the split pulley rotary drive of the fourth embodiment of the present invention.

[0032] In the figure: 1. Outer frame body; 101. Support plate; 2. Cooling shell; 3. Gear-type single-sided multi-zone air blowing assembly; 301. Hollow auxiliary shell; 302. Central inclined gear shaft; 303. Secondary transmission shaft; 304. Secondary helical gear; 305. Three-blade fan; 306. Air guide tube; 307. Belt drive structure; 4. In-line layer plate type multi-channel flow deflector; 401. Square upper flow tube; 402. Flow deflector plate; 403. Square lower flow tube; 404. Flow channel groove; 5. Driven type air-cooled heat dissipation assembly; 6. Two-way liquid inlet pipe group; 601. Three-way pipe; 602. U-shaped liquid inlet pipe; 603. Right-angle pipe; 7. S-shaped horizontal liquid discharge pipe; 8. Pumping and discharging unit; 801. Horizontal liquid collection tank; 802. Turbine pump; 803. C-shaped connecting pipe; 804. Switch valve; 9. Split belt-driven rotary driver; 901. Right-angle shaft bracket; 902. Horizontal shaft; 903. Reduction motor; 904. Tensioning pulley; 905. Driven shaft; 906. Belt; 907. Synchronous pulley. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1 is given by Figures 1 to 7 The present invention includes an outer frame body 1, and the outer frame body 1 is used to provide an installation cavity for the plastic lower mold. Cooling shells 2 are fixed on the left and right outer walls of the outer frame body 1, and a gear-type single-sided multi-zone air blowing assembly 3 for horizontally blowing air into the top cavity of the plastic lower mold is installed at the top of the cooling shell 2. Driven type air-cooled heat dissipation assemblies 5 are provided on the outer walls of the two cooling shells 2 away from each other. The driven type air-cooled heat dissipation assembly 5 works together with the gear-type single-sided multi-zone air blowing assembly 3. An in-line layer plate type multi-channel flow deflector 4 is installed inside the cooling shell 2 on the air outlet side of the driven type air-cooled heat dissipation assembly 5;

[0035] An S-shaped horizontal liquid discharge pipe 7 is provided at the bottom of the outer frame body 1, and one end of the S-shaped horizontal liquid discharge pipe 7 is connected to the liquid outlet end of one of the in-line layer plate type multi-channel flow deflectors 4, and the other end of the S-shaped horizontal liquid discharge pipe 7 is installed with a pumping and discharging unit 8;

[0036] The split pulley rotary drive 9 is installed on one side of the surface of the outer casing 1 and is used to drive two symmetrical gear-type single-sided multi-zone air blowing assemblies 3 to work synchronously; the staff can install a motor controller for controlling the split pulley rotary drive 9 on the outer wall on one side of the outer casing 1, and control the split pulley rotary drive 9 to work according to the set direction, speed, angle, and response time through the motor controller. During this process, the split pulley rotary drive 9 is controlled by the motor controller to be at an appropriate rotational speed according to the cooling needs, so that the gear-type single-sided multi-zone air blowing assembly 3 and the driven air-cooled heat dissipation assembly 5 can effectively transport cold air.

[0037] Embodiment 2, on the basis of Embodiment 1, is given by Figure 8 , Figure 9 and Figure 10 A support plate 101 is fixed to the bottom of the outer casing 1. A clearance portion is provided inside the outer casing 1 below the support plate 101. Two S-shaped horizontal drain pipes 7 are symmetrically installed flat in the clearance portion. A two-way inlet pipe group 6 is installed at the liquid inlet ends of the two in-line laminated multi-channel flow deflectors 4. The outer casing 1 and the cooling shell 2 provide the structural support of the device to ensure the stability and durability of each component, while the support plate 101 is used for arranging the lower mold, so that the coolant in the S-shaped horizontal drain pipe 7 exchanges heat with the lower surface of the lower mold;

[0038] The two-way inlet pipe group 6 is composed of a tee pipe 601, a U-shaped inlet pipe 602, and a right-angle pipe 603. The U-shaped inlet pipe 602 is installed on the surface of the outer casing 1 and the two ends of the U-shaped inlet pipe 602 extend in the direction away from the vertical central reference plane of the outer casing 1. The right-angle pipe 603 is fixed to one end of the U-shaped inlet pipe 602. The end of the right-angle pipe 603 away from the U-shaped inlet pipe 602 extends into the interior of the cooling shell 2 and is connected to the liquid inlet end of the in-line laminated multi-channel flow deflector 4. The tee pipe 601 is installed on the U-shaped inlet pipe 602. A rectangular opening is provided on the outer wall of the outer casing 1 close to the U-shaped inlet pipe 602;

[0039] When supplying coolant to the two in-line laminated multi-channel flow deflectors 4 synchronously, the tee pipe 601 is connected to an external coolant supply device. The external coolant supply device can be a water pump and a water valve, so that the coolant is split into the U-shaped inlet pipe 602 through the tee pipe 601, and the coolant is introduced into the in-line laminated multi-channel flow deflector 4 by using the right-angle pipe 603. Thus, the two-way inlet pipe group 6 allows the liquid to flow in two directions, realizes more uniform liquid distribution, and optimizes the heat dissipation or cooling effect;

[0040] The pumping and discharging unit 8 includes a horizontal liquid collecting tank 801, a turbine pump 802, a C-shaped connecting pipe 803, and a switching valve 804. The horizontal liquid collecting tank 801 is installed on the back of the outer frame 1. One end of the S-shaped horizontal liquid discharging pipe 7 far from the liquid outlet end of the in-line laminar multi-channel flow deflector 4 extends into the interior of the horizontal liquid collecting tank 801. The turbine pump 802 is arranged on the back of the outer frame 1 on one side of the horizontal liquid collecting tank 801. A C-shaped connecting pipe 803 is installed between the liquid inlet end of the turbine pump 802 and the liquid discharging end of the horizontal liquid collecting tank 801. A switching valve 804 is installed on one side of the surface of the C-shaped connecting pipe 803. The coolant heated up after heat exchange through the in-line laminar multi-channel flow deflector 4 enters the horizontal liquid collecting tank 801 through the S-shaped horizontal liquid discharging pipe 7. When the staff starts the turbine pump 802 to work and opens the switching valve 804, the turbine pump 802 pumps out the coolant collected in the horizontal liquid collecting tank 801 through the C-shaped connecting pipe 803 and the switching valve 804, and transports it to the external coolant treatment equipment from the liquid outlet end of the turbine pump 802, so as to quickly and effectively discharge the liquid from the in-line laminar multi-channel flow deflector 4 and maintain the normal operation of the liquid cooling part;

[0041] The in-line laminar multi-channel flow deflector 4 includes a square upper flow pipe 401, a square lower flow pipe 403 installed at the upper and lower positions inside the cooling shell 2, and a number of flow deflectors 402 installed at equal intervals between the square upper flow pipe 401 and the square lower flow pipe 403. The flow deflectors 402 are used to connect the square upper flow pipe 401 and the square lower flow pipe 403. One end of the right-angle pipe 603 far from the U-shaped liquid inlet pipe 602 extends into the interior of the square upper flow pipe 401 and is interconnected with the square upper flow pipe 401. One end of the S-shaped horizontal liquid discharging pipe 7 far from the horizontal liquid collecting tank 801 extends into the interior of the square lower flow pipe 403 and is interconnected with the square lower flow pipe 403. The right-angle pipe 603 sends the coolant into the square upper flow pipe 401, and the flow deflectors 402 serve the purpose of vertically downwardly diverting the coolant. During this process, the coolant enters the square lower flow pipe 403 through a number of flow channels 404 in the flow deflectors 402. By means of the flow deflectors 402 and the flow channels 404, the flow dead zones are reduced, enabling the coolant to be more evenly distributed to each area;

[0042] The distance between two adjacent flow deflectors 402 is 8 cm to 15 cm. A number of flow channels 404 for connecting the square upper flow pipe 401 and the square lower flow pipe 403 are arranged inside the flow deflectors 402. The number of flow deflectors 402 and the flow channels 404 arranged inside the flow deflectors 402 can increase the heat exchange area between the coolant and the external heat, and the larger heat exchange area can enable more heat to be exchanged between the fluids, thereby improving the overall heat exchange efficiency, especially achieving effective heat exchange under the same heat flow rate;

[0043] The flow deflector 402 is made of an aluminum alloy component. Aluminum alloy has a good strength-to-weight ratio and can reduce the weight of the overall structure. The U-shaped liquid inlet pipe 602, the right-angle pipe 603, and the S-shaped horizontal drain pipe 7 are all made of copper components. Copper has excellent heat conduction performance and can quickly and effectively conduct the heat of the liquid, improving the heat exchange efficiency. The top view cross-sectional shape of the flow channel groove 404 is rectangular.

[0044] Embodiment 3, based on Embodiment 2, is given by Figure 11 and Figure 12 The gear-type single-sided multi-zone air-blowing assembly 3 includes a hollow auxiliary housing 301 fixed at the opening position at the top of the cooling housing 2, second-level transmission shafts 303 symmetrically and rotatably installed on both sides inside the hollow auxiliary housing 301, and a central bevel gear shaft 302 rotatably installed inside the hollow auxiliary housing 301 between the two second-level transmission shafts 303. One end of the surface of the second-level transmission shaft 303 is fixed with a second-level bevel gear 304 for meshing with the central bevel gear shaft 302. The hollow auxiliary housing 301 is located above the square upstream pipe 401, and a wind guide cylinder 306 is fixed on the outer wall of one side of the hollow auxiliary housing 301 close to the vertical central reference plane of the outer frame 1. One end of each of the second-level transmission shaft 303 and the central bevel gear shaft 302 extends into the wind guide cylinder 306 and is fixed with a three-blade fan 305. The wind guide cylinder 306 is located outside the three-blade fan 305 to guide the air flow to maintain a straight line as much as possible and reduce the influence between two adjacent driven air-cooled heat dissipation assemblies 5;

[0045] When the split pulley rotary driver 9 works, it drives one of the second-level transmission shafts 303 and the second-level bevel gear 304 to rotate. Subsequently, the central bevel gear shaft 302 is driven to rotate by the second-level bevel gear 304. Since three-blade fans 305 are installed at one end of the second-level transmission shaft 303 and the central bevel gear shaft 302 close to the vertical central reference plane of the outer frame 1, multiple three-blade fans 305 are driven to rotate together, generating multiple wind zones. The multiple wind zones can evenly distribute the air flow above the mold, thereby improving the heat exchange efficiency, ensuring that each area can obtain an appropriate air flow rate, and optimizing the cooling effect;

[0046] One end of the central bevel gear shaft 302 away from the three-blade fan 305 penetrates to the outside of the hollow auxiliary housing 301 and is installed with a pulley transmission structure 307 for driving the input shaft of the driven air-cooled heat dissipation assembly 5 to rotate. When the central bevel gear shaft 302 rotates, it will drive the input shaft of the driven air-cooled heat dissipation assembly 5 to rotate by means of the pulley transmission structure 307, enabling the driven air-cooled heat dissipation assembly 5 to work. The driven air-cooled heat dissipation assembly 5 blows air from the in-line laminar multi-channel flow deflector 4 to the mold, thereby forming a continuous cooling air flow.

[0047] Embodiment 4, based on Embodiment 3, is given by Figure 13Given that the split pulley rotary drive 9 effectively distributes power to the two gear-type single-sided multi-zone blower assemblies 3, ensuring that they can obtain sufficient power when needed, and the two gear-type single-sided multi-zone blower assemblies 3 share one power source, which can better share the load and achieve the same air flow distribution and air volume adjustment;

[0048] The split pulley rotary drive 9 includes a right-angle shaft bracket 901 fixed on the outer wall of the same side of the two gear-type single-sided multi-zone blower assemblies 3, a cross shaft 902 rotatably installed on the outer wall of one side of the two right-angle shaft brackets 901 away from the hollow secondary housing 301, and a reduction motor 903 installed on the outer wall of one side of one of the hollow secondary housings 301. The speed range of the reduction motor 903 is 2000 to 4000 RPM. The drive shaft of the reduction motor 903 is concentrically sleeved with the cross shaft 902 and maintains power connection through a keyway structure. A tension pulley 904 is rotatably installed on the outer wall of one side of the right-angle shaft bracket 901 away from the reduction motor 903. One end of the reduction motor 903 below the tension pulley 904 is fixed with a driven shaft 905. Synchronous pulleys 907 are fixed on the same ends of the driven shaft 905 and the cross shaft 902. A belt 906 is wound between the synchronous pulleys 907 and the tension pulley 904. When the split pulley rotary drive 9 is working, the drive shaft of the reduction motor 903 drives the cross shaft 902 in the two right-angle shaft brackets 901 to rotate. Then, both ends of the cross shaft 902 drive the driven shaft 905 to rotate through the synchronous pulleys 907, the belt 906, and the tension pulley 904. The driven shaft 905 is used to drive one of the secondary drive shafts 303 to rotate, so that the gear-type single-sided multi-zone blower assembly 3 and the driven air-cooled heat dissipation assembly 5 can work under the drive of the split pulley rotary drive 9.

[0049] When the embodiment of the present application is in use, first, the lower mold of the plastic mold needs to be pre-arranged in the outer frame 1, and the lower mold is adjusted to the center position at the bottom of the outer frame 1. Subsequently, a comprehensive inspection of the entire cooling device is carried out to confirm the integrity of the outer frame 1, the cooling shell 2 and its internal components, ensuring that there are no phenomena such as water leakage or air leakage. Check the working state of the gear-type single-sided multi-zone air-blowing assembly 3 to ensure that it can operate normally, and connect the in-line layered multi-channel flow deflector 4 in the cooling shell 2 to an external coolant supply device. Check the coolant storage capacity of the external coolant supply device to ensure that the coolant is sufficient and meets the standards. Finally, check the power supply and control system connected to the split pulley rotary drive 9 to ensure that all components can be started normally; after the device commissioning and inspection are completed, turn on the external coolant supply device so that the coolant continuously flows into the in-line layered multi-channel flow deflector 4. At the same time, turn on the split pulley rotary drive 9, and use the split pulley rotary drive 9 to provide rotary power for the two gear-type single-sided multi-zone air-blowing assemblies 3 that are symmetric on the left and right sides at the same time, ensuring that the two gear-type single-sided multi-zone air-blowing assemblies 3 generate sufficient airflows. During this process, the operator needs to pay attention to observing the operating state of the split pulley rotary drive 9 to ensure its stable operation. At this time, due to the symmetric design of the two gear-type single-sided multi-zone air-blowing assemblies 3, the gear-type single-sided multi-zone air-blowing assemblies 3 evenly deliver cold air to the outer frame 1 and the upper opening of the lower mold, and the cold air quickly flows into each area of the lower mold, forming a strong cooling airflow. This process takes away the heat on the mold surface and reduces the mold temperature; when the gear-type single-sided multi-zone air-blowing assembly 3 is working, the driven air-cooled heat dissipation assembly 5 is also started simultaneously. The driven air-cooled heat dissipation assembly 5 further enhances the cooling effect by guiding the airflow, that is, the driven air-cooled heat dissipation assembly 5 forms a continuous cooling airflow on one side of the in-line layered multi-channel flow deflector 4 to ensure uniform temperature distribution in each area of the mold; the coolant is distributed through the in-line layered multi-channel flow deflector 4, enabling the heat on one side of the mold to fully contact and exchange heat with the in-line layered multi-channel flow deflector 4. As the coolant continuously flows into the in-line layered multi-channel flow deflector 4, the heat in the lower mold is taken away, and the coolant gradually warms up. Moreover, the temperature of the airflow blown by the driven air-cooled heat dissipation assembly 5 is also reduced, further reducing the temperature of the lower mold; as the coolant flows in, the heat at the lower mold in the outer frame 1 is taken away, and the coolant gradually warms up. At this time, the S-shaped horizontal drain pipe 7 guides the warmed-up coolant to the pumping and discharging unit 8, and the pumping and discharging unit 8 discharges the warmed-up external coolant from the system and ensures the circulation of the coolant. The operator needs to regularly check the flow conditions of the coolant in the in-line layered multi-channel flow deflector 4, the S-shaped horizontal drain pipe 7, and the pumping and discharging unit 8 to ensure no blockage and keep the coolant flowing smoothly;After the production cycle ends or the mold cooling reaches the expected effect, the operator can gradually stop the cooling operation. First, turn off the split pulley rotary drive 9 to stop the operation of the gear-type single-sided multi-zone air blowing assembly 3 and the driven-type air-cooled heat dissipation assembly 5. Finally, turn off the supply of the external coolant supply device to ensure that there are no problems such as coolant leakage before the device stops.

[0050] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. High efficiency and energy saving plastic mold cooling device, characterized by: include: An outer frame (1), the outer frame (1) is used to provide an installation cavity for the plastic lower mold, a cooling shell (2) is fixed on the left and right outer walls of the outer frame (1), and a gear-type single-side multi-zone blowing assembly (3) for horizontally blowing air to the top mold cavity of the plastic lower mold is installed on the top of the cooling shell (2), and a driven air-cooling heat dissipation assembly (5) is arranged on the outer walls away from each other of the two cooling shells (2), and the driven air-cooling heat dissipation assembly (5) works together with the gear-type single-side multi-zone blowing assembly (3), and a straight-line layer plate multi-channel deflector (4) is installed inside the cooling shell (2) on the air outlet side of the driven air-cooling heat dissipation assembly (5); An S-shaped horizontal liquid discharge pipe (7), the S-shaped horizontal liquid discharge pipe (7) being arranged at the bottom of the outer frame (1), and one end of the S-shaped horizontal liquid discharge pipe (7) being connected to a liquid outlet end of one of the in-line layer plate type multi-channel flow guiders (4), and the other end of the S-shaped horizontal liquid discharge pipe (7) being provided with a pumping and discharge unit (8); A split pulley rotary driver (9) is installed on one side of the surface of the outer frame (1) and is used to drive two symmetrical gear-type single-sided multi-zone air blowing assemblies (3) to work synchronously.

2. The high-efficiency and energy-saving plastic mold cooling device according to claim 1 is characterized in that: A support plate (101) is fixed at the bottom of the outer frame (1), a blank portion is provided inside the outer frame (1) below the support plate (101), two S-shaped horizontal liquid discharge pipes (7) are symmetrically installed in the blank portion, and two-way liquid inlet pipe groups (6) are installed at the liquid inlet ends of the two in-line layer plate type multi-channel flow guides (4).

3. The high-efficiency and energy-saving plastic mold cooling device according to claim 2 is characterized in that: The bidirectional liquid inlet pipe group (6) is composed of a three-way pipe (601), a U-shaped liquid inlet pipe (602), and a right-angle pipe (603); the U-shaped liquid inlet pipe (602) is installed on the surface of the outer frame (1) and the two ends of the U-shaped liquid inlet pipe (602) extend in a direction away from the vertical center reference plane of the outer frame (1); the right-angle pipe (603) is fixed to one end of the U-shaped liquid inlet pipe (602); the end of the right-angle pipe (603) away from the U-shaped liquid inlet pipe (602) extends to the interior of the cooling shell (2) and is connected to the liquid inlet end of the in-line layer plate type multi-channel guide (4); the three-way pipe (601) is installed on the U-shaped liquid inlet pipe (602); and a rectangular opening is provided on the outer wall of the outer frame (1) on one side close to the U-shaped liquid inlet pipe (602).

4. The high-efficiency and energy-saving plastic mold cooling device according to claim 3 is characterized in that: The pumping and discharging unit (8) comprises a horizontal liquid collecting tank (801), a turbine pump (802), a C-type connecting pipe (803) and a switch valve (804); the horizontal liquid collecting tank (801) is mounted on the back of the outer frame (1); one end of the S-type horizontal liquid discharge pipe (7) away from the liquid outlet end of the in-line layer plate type multi-channel flow guide (4) extends to the interior of the horizontal liquid collecting tank (801); the turbine pump (802) is arranged on the back of the outer frame (1) on one side of the horizontal liquid collecting tank (801); a C-type connecting pipe (803) is mounted between the liquid inlet end of the turbine pump (802) and the liquid discharge end of the horizontal liquid collecting tank (801); and a switch valve (804) is mounted on one side of the surface of the C-type connecting pipe (803).

5. The high-efficiency and energy-saving plastic mold cooling device according to claim 4 is characterized in that: The in-line layer plate type multi-channel flow guide (4) comprises a square upstream pipe (401), a square downstream pipe (403) and a plurality of flow guide plates (402) installed at equal intervals between the square upstream pipe (401) and the square downstream pipe (403) at upper and lower positions inside the cooling shell (2); the flow guide plates (402) are used to connect the square upstream pipe (401) and the square downstream pipe (403); one end of the right-angle pipe (603) away from the U-shaped liquid inlet pipe (602) extends to the inside of the square upstream pipe (401) and is mutually connected with the square upstream pipe (401); one end of the S-shaped horizontal liquid discharge pipe (7) away from the horizontal liquid collecting tank (801) extends to the inside of the square downstream pipe (403) and is mutually connected with the square downstream pipe (403).

6. The high-efficiency and energy-saving plastic mold cooling device according to claim 5 is characterized in that: The distance between two adjacent guide plates (402) is 8 cm to 15 cm, and a plurality of flow channel grooves (404) for connecting the square upper flow pipe (401) and the square lower flow pipe (403) are arranged inside the guide plate (402).

7. The high-efficiency and energy-saving plastic mold cooling device according to claim 6 is characterized in that: The guide plate (402) is made of aluminum alloy, the U-shaped liquid inlet pipe (602), the right-angle pipe (603), and the S-shaped horizontal liquid discharge pipe (7) are all made of copper, and the cross-sectional shape of the flow channel (404) when viewed from above is rectangular.

8. The high-efficiency and energy-saving plastic mold cooling device according to claim 5 is characterized in that: The gear-type single-sided multi-zone air blowing assembly (3) comprises a hollow secondary shell (301) fixed at the top opening position of the cooling shell (2), a secondary transmission shaft (303) symmetrically rotatably mounted on both sides of the hollow secondary shell (301), and a central bevel gear shaft (302) rotatably mounted inside the hollow secondary shell (301) between the two secondary transmission shafts (303), a secondary bevel gear (304) for meshing with the central bevel gear shaft (302) being fixed on one end of the surface of the secondary transmission shaft (303), the hollow secondary shell (301) being located above the square upper flow pipe (401), and an air guide tube (306) being fixed on the outer wall of the hollow secondary shell (301) on one side close to the vertical center reference plane of the outer frame (1), and one end of the secondary transmission shaft (303) and the central bevel gear shaft (302) both extend into the interior of the air guide tube (306) and are fixed with a three-blade fan (305).

9. The high-efficiency and energy-saving plastic mold cooling device according to claim 8, characterized in that: One end of the central helical gear shaft (302) away from the three-blade fan (305) passes through the outside of the hollow auxiliary shell (301) and is installed with a pulley transmission structure (307) for driving the input shaft of the driven air-cooling heat dissipation assembly (5) to rotate.

10. The high-efficiency and energy-saving plastic mold cooling device according to claim 8, characterized in that: The split pulley rotary driver (9) comprises a right-angled shaft frame (901) fixed on the outer wall of the same side of two gear-type single-side multi-zone air blowing assemblies (3), a transverse shaft (902) rotatably mounted on the outer wall of the two right-angled shaft frames (901) away from the hollow secondary shell (301), and a reduction motor (903) mounted on the outer wall of one side of the hollow secondary shell (301), wherein the driving shaft of the reduction motor (903) is concentrically mounted on the transverse shaft (902) and is connected to the hollow secondary shell (301) by a rotation axis. The keyway structure maintains power connection. A tensioning wheel (904) is rotatably mounted on the outer wall of the right-angle shaft frame (901) away from the reduction motor (903). A driven shaft (905) is fixed to one end of the reduction motor (903) below the tensioning wheel (904). A synchronous wheel (907) is fixed to the same end of the driven shaft (905) and the transverse shaft (902). A belt (906) is wound between the synchronous wheel (907) and the tensioning wheel (904).

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