A hydraulic oil cooling device for a hydraulic pump station of a molding machine

Abstract

The present application discloses a hydraulic oil cooling device for a hydraulic pump station of a molding machine, which belongs to the technical field of hydraulic equipment and includes a hydraulic pump station structure and a heat-introducing cooling structure; the heat-introducing cooling structure includes a forced refrigeration module and a tentacle assembly. After the liquid refrigerant portion in the sweating cooling component absorbs the heat of the oil temperature, it evaporates due to the heat. The evaporated liquid refrigerant portion liquefies when it contacts the cooler inner wall of the upper part of the inner cavity of the hollow heat-introducing rod, slides along the inner wall of the hollow heat-introducing rod, and is absorbed by the fiber liquid-absorbing layer again. When the hydraulic oil temperature exceeds the preset critical upper limit, the heat-expanding and cold-contracting medium layer in the heat-sensing component expands due to the heat, driving the spring to elastically bulge outward and drive the retraction mechanism to retract, causing the two excitation terminals to contact and triggering the signal transmitting unit to send an opening control signal to the hydraulic pump station structure. The hydraulic pump station structure then controls the forced refrigeration module to perform forced cooling on the hydraulic oil with an excessively high temperature.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic equipment, and more specifically, to a hydraulic oil cooling device for a hydraulic pump station of a molding machine. Background Art

[0002] As we all know, the hydraulic pump station of the molding machine is mainly a device that provides hydraulic power support for the molding machine. It is a hydraulic source device composed of a hydraulic pump, a drive motor, an oil tank and other parts. The hydraulic pump station of the molding machine uses hydraulic oil as the circulating oil.

[0003] When the hydraulic pump station of the molding machine is running, the hydraulic oil inside it is prone to excessively high temperature due to its high pressure. The high-temperature hydraulic oil is not only easy to transfer the temperature to the molding machine and damage the components inside the molding machine, but also the high temperature of the hydraulic oil will accelerate its oxidation process and produce sediments such as sludge. These sediments will clog the small channels and gaps in the hydraulic system of the hydraulic pump station of the molding machine, affecting the normal operation of the hydraulic system of the hydraulic pump station, and even causing its components to fail, affecting the stable operation of the equipment.

[0004] In view of this, we propose a hydraulic oil cooling device for a hydraulic pump station of a molding machine. Summary of the Invention

[0005] Technical problem to be solved: The purpose of this application is to provide a hydraulic oil cooling device for a hydraulic pump station of a molding machine, which solves the technical problems raised in the above-mentioned background technology.

[0006] Technical solution: The technical solution of this application provides a hydraulic oil cooling device for a hydraulic pump station of a molding machine, comprising a hydraulic pump station structure and a heat-inducing cooling structure provided on the hydraulic pump station structure;

[0007] The heat-introducing cooling structure includes a forced cooling module and several tentacle assemblies that can forcibly cool the high-temperature hydraulic oil in the hydraulic pump station and are electrically connected to the hydraulic pump station structure;

[0008] The tentacle assembly includes an upper cover in contact with the hydraulic pump station structure, and a plurality of tentacle units are evenly arranged on the upper cover;

[0009] The tentacle unit includes a hollow heating rod plugged into the upper cover, and the bottom end of the hollow heating rod extends into the interior of the hydraulic pump station structure and contacts the hydraulic oil, while the top end extends from the top of the upper cover and contacts the atmosphere. A layer of sweating cooling element is provided on the side wall of the inner cavity of the hollow heating rod, and a heat sensing element is also provided in the inner cavity of the hollow heating rod. The heat sensing element includes a thermal expansion and contraction medium layer and a forced spring, and the thermal expansion and contraction medium layer is filled in the interior of the sensing element. A cylindrical breathable mesh cover is also sleeved on the outside of the heat sensing element.

[0010] A speed-up cooling member is provided at the position of the side wall of the hollow heat-leading rod corresponding to the position of the forcing spring piece. The speed-up cooling member includes a retractable and movable retracting mechanism made of a heat-insulating material and a channel structure provided at the top end of the hollow heat-leading rod. A reserved notch is provided at the position of the cylindrical air-permeable mesh cover corresponding to the position of the retracting mechanism. The fixed end of the retracting mechanism is connected to the hollow heat-leading rod, and when the retracting mechanism is in the initial extension state, the end of its free end abuts against the surface of the side wall of the forcing spring piece.

[0011] The retraction mechanism includes an insulating coolant filled therein and a drainage pipe, and the retraction mechanism is connected to the channel structure through the drainage pipe, and the drainage pipe is also filled with insulating coolant;

[0012] A synchronization control module is also provided on one of the tentacle units in one of the tentacle assemblies, which is electrically connected to the hydraulic pump station structure and is located inside the retraction mechanism;

[0013] The synchronous control module includes a signal transmitting unit, two excitation terminals arranged opposite to each other, and an elastic slider connected to the free end of the retraction mechanism, wherein one of the excitation terminals is connected to the fixed end of the retraction mechanism, and the other excitation terminal is connected to the elastic slider;

[0014] When the two excitation terminals are in contact, the trigger signal transmitting unit sends an opening control signal to the hydraulic pump station structure.

[0015] As an optional solution of the technical solution of this application document, the sweating cooling element includes a fiber liquid-absorbing layer connected to the inner cavity of the hollow heat-leading rod, and the fiber liquid-absorbing layer absorbs the liquid refrigerant medium part.

[0016] As an optional solution of the technical solution of this application document, the thermal sensing element includes an internal heat-conducting cylindrical shell arranged in the inner cavity of the hollow heat-conducting rod and the bottom end of which is connected to the bottom wall of the inner cavity of the hollow heat-conducting rod;

[0017] The thermal expansion and contraction medium layer is filled in the inner cavity of the heat-conducting cylinder shell;

[0018] The side wall of the inner heat-conducting cylinder shell is provided with a spring slot adapted to the forcing spring, and the forcing spring is connected to the spring slot;

[0019] The cylindrical air-permeable mesh cover is sleeved on the outside of the internal heat-conducting cylindrical shell.

[0020] As an optional solution of the technical solution of the present application document, the retracting mechanism includes a heat-insulating bottom cylinder, and a heat-insulating end cap is sealed and connected to one end of the opening of the heat-insulating bottom cylinder;

[0021] A crossbar is slidably inserted into the end of the heat-insulating bottom tube away from the heat-insulating end cover, and one end of the crossbar extends into the inner cavity of the heat-insulating bottom tube and is connected to a sealing plug seat that slides sealingly in the inner cavity of the heat-insulating bottom tube, and the other end of the crossbar extends from the end of the heat-insulating bottom tube and is connected to a curved surface support plate;

[0022] A first return spring connected between the sealing plug seat and the thermal insulation end cover is also provided in the inner cavity of the thermal insulation bottom cylinder;

[0023] An opening is also provided on one end of the heat-insulating bottom cylinder away from the heat-insulating end cover.

[0024] As an optional solution of the technical solution of this application document, the heat-insulating bottom cylinder is connected to the side wall of the hollow heat-leading rod;

[0025] When the retraction mechanism is in an initial extension state, the first return spring is in a relaxed state, and the arc-surface abutment plate passes through the reserved notch and abuts against the side wall surface of the forcing spring piece.

[0026] As an optional solution of the technical solution of this application document, the channel structure includes an annular processing groove and an exhaust channel arranged inside the top end of the hollow heat-conducting rod;

[0027] An annular plug body is sealingly slidably disposed in the inner cavity of the annular processing groove. A second return spring is also disposed in the inner cavity of the annular processing groove, and one end of the second return spring is connected to the bottom of the annular plug body, and the other end is connected to the bottom wall of the annular processing groove;

[0028] One end of the exhaust channel is connected to the bottom end of the annular processing tank, and the other end passes through the side wall of the hollow heat-leading rod and is connected to the atmosphere.

[0029] As an optional solution to the technical solution of this application document, one end of the drainage pipe is connected to the insulating end cover and communicated with the inner cavity of the insulating bottom cylinder, and the other end passes through the interior of the hollow heat-conducting rod and communicates with the top of the annular treatment tank.

[0030] As an optional solution of the technical solution of this application document, the upper cover includes a mounting base, and the bottom of the mounting base is connected to a heat-conducting base integrally formed therewith;

[0031] The bottom of the mounting base is also connected to a thermally conductive gasket, and the thermally conductive gasket is arranged around the outer periphery of the thermally conductive base;

[0032] The hollow heat-conducting rod is plugged and fixed on an integrally formed structure consisting of a mounting base and a heat-conducting base.

[0033] As an optional solution of the technical solution of this application document, the hydraulic pump station structure includes a molding machine hydraulic pump station body, and the molding machine hydraulic pump station body is provided with a pump station controller;

[0034] The forced refrigeration module includes a refrigeration compressor unit and a heat-conducting shell fixed in the inner cavity of the oil tank of the main hydraulic pump station of the molding machine. An evaporator is arranged inside the heat-conducting shell. One end of the evaporator is connected to the input end of the refrigeration compressor unit, and the other end is connected to the output end of the refrigeration compressor unit.

[0035] A top opening adapted to the heat-conducting base is provided on the top of the main body of the hydraulic pump station of the molding machine, corresponding to the position of its oil tank. The heat-conducting base is sealably and movably inserted into the inside of the top opening, and the mounting base is fixedly connected to the main body of the hydraulic pump station of the molding machine.

[0036] The bottom end of the hollow heat-leading rod extends into the interior of the oil tank in the main body of the hydraulic pump station of the molding machine and contacts with the hydraulic oil.

[0037] As an optional solution of the technical solution of this application document, the signal transmitting unit includes a control circuit board connected to the end of the heat-insulating end cover close to the opening of the heat-insulating bottom cylinder, and the control circuit board is provided with a wireless signal transmitter;

[0038] The elastic slider member includes a pulling slide seat slidably connected to the inner cavity of the heat-insulating bottom cylinder, and a spring is provided on the side of the pulling slide seat away from the heat-insulating end cover, and the spring is connected between the pulling slide seat and the sealing plug seat;

[0039] One of the excitation terminals is connected to the heat-insulating end cover in the retraction mechanism, and the other excitation terminal is connected to the pulling slide seat in the elastic slider member;

[0040] When the two excitation terminals touch, the control circuit board is triggered to control the wireless signal transmitter to turn on, and then the wireless signal transmitter sends an opening control signal to the pump station controller.

[0041] Beneficial effects: One or more technical solutions provided in the technical solution of the present application have at least the following technical effects or advantages: 1. After the oil temperature of the hydraulic oil in the hydraulic pump station structure is continuously transferred to the sweating cooling part in the tentacle unit, the liquid refrigerant medium part in the sweating cooling part absorbs the heat of the oil temperature and evaporates due to the heat. The evaporated liquid refrigerant medium part is liquefied when it comes into contact with the colder inner wall of the upper part of the inner cavity of the hollow heating rod, and slides along the inner wall of the hollow heating rod and is absorbed by the fiber liquid absorption layer again, thereby realizing passive circulation cooling treatment of the hydraulic oil.

[0042] 2. When the hydraulic oil temperature exceeds the preset critical upper limit, the thermal expansion and contraction medium layer in the thermal sensing component expands due to heat, driving the spring to elastically bulge outward and drive the retraction mechanism to retract, causing the two excitation terminals to contact and triggering the signal transmitting unit to send an opening control signal to the pump station controller in the hydraulic pump station structure. The pump station controller in the hydraulic pump station structure then controls the forced refrigeration module to open and actively force cooling of the hydraulic oil with excessively high temperature, so that it can be quickly cooled, which helps to improve the stability of the hydraulic pump station operation of the molding machine.

[0043] 3. When the thermal expansion and contraction medium layer in the thermal sensing component expands due to heat, it drives the spring to elastically bulge outward and drives the cross bar in the retraction mechanism to retract. At the same time, the sealing plug seat that moves synchronously with the cross bar continuously injects insulating coolant into the channel structure at the top of the hollow heating rod through the drainage pipeline, so that the temperature difference between the two ends of the hollow heating rod increases, and the heat exchange efficiency of the tentacle unit is enhanced, so that the heat of the evaporated liquid coolant medium part can be taken away more quickly when it contacts the inner wall of the hollow heating rod, and it is quickly liquefied, thereby enhancing the sweating cooling efficiency of the sweating cooling component, and thus helping to improve the cooling efficiency of the hydraulic oil.

[0044] 4. When the thermal expansion and contraction medium layer in the thermal sensing component is driven by thermal expansion to force the spring to bulge outward elastically, the space inside the hollow heating rod for the evaporating liquid refrigerant part to move is further occupied, so that the internal space of the hollow heating rod is optimized, and after the forced cooling module is turned on, the cold source is continuously transmitted to the upper cover through the thermal conductive gasket, and the cold source is then quickly transmitted to the upper end surface of the hollow heating rod by the upper cover and continuously dissipates heat for the insulating coolant in the channel structure, thereby helping to further widen the temperature difference between the two ends of the hollow heating rod. The above effects are superimposed, so that the evaporated liquid refrigerant part can reach the upper part of the inner cavity of the hollow heating rod more quickly and quickly contact with the colder inner wall of the hollow heating rod to liquefy, thereby helping to further enhance the cooling effect on the hydraulic oil, shorten the cooling time of the hydraulic oil, and enable the hydraulic oil temperature to quickly drop below the preset critical upper limit, thereby helping to shorten the opening time of the forced cooling module and reduce the energy consumption of equipment operation.

[0045] 5. Through the insulating coolant located in the retracting mechanism, the excitation terminals and the signal transmitting unit can be cooled and dissipated when the two excitation terminals are connected. This not only helps to extend the service life of the synchronous control module, but also helps to improve the operational stability of the synchronous control module. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the overall structure of this application.

[0047] Figure 2 For this application Figure 1 A partial enlarged schematic diagram of part A.

[0048] Figure 3 This is a side view of the overall structure of this application.

[0049] Figure 4 This is a cross-sectional view of the oil tank in the main body of the hydraulic pump station of the molding machine of this application.

[0050] Figure 5 For this application Figure 4 A partial enlarged schematic diagram of part B.

[0051] Figure 6 This is a cross-sectional view of the heat-introducing and cooling structure in this application.

[0052] Figure 7 This is a cross-sectional view of the execution unit in this application.

[0053] Figure 8 For this application Figure 7 A partial enlarged schematic diagram of part D in the middle.

[0054] Figure 9 For this application Figure 7 A partial enlarged schematic diagram of part E in the middle.

[0055] Figure 10 For this application Figure 7 A partial enlarged schematic diagram of part F in the middle.

[0056] Figure 11 For this application Figure 6 A partial enlarged schematic diagram of part C in the middle.

[0057] Figure 12 For this application Figure 11 A partial enlarged schematic diagram of part G in the middle.

[0058] Description of the numbers in the figure:

[0059] 101. Molding machine hydraulic pump station main body; 102. Pump station controller;

[0060] 201. Refrigeration compressor unit; 202. Mounting base; 203. Hollow heat-conducting rod; 204. Thermally conductive gasket; 205. Thermally conductive shell; 206. Evaporator; 207. Thermally conductive base; 208. Thermally insulating end cover; 209. Internally connected thermally conductive shell; 210. Thermal expansion and contraction dielectric layer; 211. Cylindrical breathable mesh cover; 212. Forced spring; 213. Fiber liquid-absorbing layer; 214. Arc-surface abutment plate; 215. Thermally insulating bottom tube; 216. Sealing plug seat; 217. Insulated coolant; 218. Drainage pipeline; 219. Annular plug body; 220. Annular processing groove; 221. Pulling slide; 222. Spring; 223. Trigger terminal; 224. Control circuit board; 225. Wireless signal transmitter. DETAILED DESCRIPTION

[0061] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0062] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0063] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0064] Reference Figures 1 to 12 , an embodiment of the present application provides a hydraulic oil cooling device for a hydraulic pump station of a molding machine, comprising a hydraulic pump station structure and a heat-inducing cooling structure provided on the hydraulic pump station structure;

[0065] The heat-introducing cooling structure includes a forced cooling module and several tentacle assemblies that can forcibly cool the high-temperature hydraulic oil in the hydraulic pump station and are electrically connected to the hydraulic pump station structure;

[0066] The tentacle assembly includes an upper cover in contact with the hydraulic pump station structure, and a plurality of tentacle units are evenly arranged on the upper cover;

[0067] The tentacle unit includes a hollow heat-inducing rod 203 plugged into the upper cover, and the bottom end of the hollow heat-inducing rod 203 extends into the interior of the hydraulic pump station structure and contacts the hydraulic oil, while the top end extends from the top of the upper cover and contacts the atmosphere. A layer of sweat-inducing cooling element is provided on the side wall of the inner cavity of the hollow heat-inducing rod 203. The inner cavity of the hollow heat-inducing rod 203 is also provided with a heat-sensing element, which includes a thermal expansion and contraction medium layer 210 and a forced spring 212. The thermal expansion and contraction medium layer 210 is filled inside the sensing element, and a cylindrical breathable mesh cover 211 is also sleeved on the outside of the thermal sensing element. The thermal expansion and contraction medium layer 210 is made of paraffin material, and the phase change temperature of the paraffin material is: 55-65°C;

[0068] A speed-increasing cooling member is provided at the side wall of the hollow heat-inducing rod 203 corresponding to the position of the forcing spring piece 212. The speed-increasing cooling member includes a retractable and movable retracting mechanism made of a heat-insulating material and a channel structure provided at the top end of the hollow heat-inducing rod 203. A reserved notch is provided in the cylindrical air-permeable mesh cover 211 at the position corresponding to the retracting mechanism. The fixed end of the retracting mechanism is connected to the hollow heat-inducing rod 203, and when the retracting mechanism is in the initial extension state, the end of its free end abuts against the side wall surface of the forcing spring piece 212.

[0069] The retraction mechanism includes an insulating coolant 217 filled therein and a drainage pipe 218, and the retraction mechanism is connected to the channel structure through the drainage pipe 218. The drainage pipe 218 is also filled with the insulating coolant 217, wherein the drainage pipe 218 is made of a heat-insulating material;

[0070] A synchronization control module electrically connected to the hydraulic pump station structure and located inside the retraction mechanism is also provided on one of the tentacle units in one of the tentacle assemblies;

[0071] The synchronous control module includes a signal transmitting unit, two contact terminals 223 arranged opposite to each other, and an elastic slider connected to the free end of the retracting mechanism, wherein one of the contact terminals 223 is connected to the fixed end of the retracting mechanism, and the other contact terminal 223 is connected to the elastic slider;

[0072] When the two excitation terminals 223 are in contact, the trigger signal transmitting unit sends an opening control signal to the hydraulic pump station structure.

[0073] Reference Figures 1 to 4 , Figure 6, the embodiment of the present application provides a hydraulic oil cooling device for a hydraulic pump station of a molding machine, wherein the upper cover comprises a mounting base 202, and a heat conducting base 207 integrally formed therewith is connected to the bottom of the mounting base 202;

[0074] The bottom of the mounting base 202 is also connected to a thermally conductive gasket 204, and the thermally conductive gasket 204 is arranged around the periphery of the thermally conductive base 207;

[0075] The hollow heat-conducting rod 203 is plugged and fixed on the integrally formed structure consisting of the mounting base 202 and the heat-conducting base 207 .

[0076] Reference Figures 1 to 6 , the embodiment of the present application provides a hydraulic oil cooling device of a hydraulic pump station of a molding machine, the hydraulic pump station structure includes a molding machine hydraulic pump station body 101, and the molding machine hydraulic pump station body 101 is provided with a pump station controller 102;

[0077] The forced refrigeration module includes a refrigeration compressor unit 201 and a heat-conducting housing 205 fixedly installed in the oil tank cavity of the molding machine hydraulic pump station body 101. An evaporator 206 is provided inside the heat-conducting housing 205. One end of the evaporator 206 is connected to the input end of the refrigeration compressor unit 201, and the other end is connected to the output end of the refrigeration compressor unit 201.

[0078] A top opening adapted to the heat-conducting base 207 is provided at the top of the main body 101 of the hydraulic pump station of the molding machine, corresponding to the position of its oil tank. The heat-conducting base 207 is sealably and movably inserted into the inside of the top opening, and the mounting base 202 is fixedly connected to the main body 101 of the hydraulic pump station of the molding machine.

[0079] The bottom end of the hollow heat-inducing rod 203 extends into the interior of the oil tank in the main body 101 of the hydraulic pump station of the molding machine and contacts with the hydraulic oil.

[0080] Among them, the refrigeration compressor unit 201 is respectively provided with a condenser, a compressor, a condenser, and a capillary tube. Among them, one end of the evaporator 206 is connected to the output end of the capillary tube in the refrigeration compressor unit 201, and the other end is connected to the input end of the compressor in the refrigeration compressor unit 201;

[0081] The high-pressure refrigerant inside the condenser pipeline flows from the output end of the condenser pipeline through the input end of the capillary tube into the capillary tube, and is then transported to the pipeline of the evaporator 206 after being depressurized by the capillary tube. The boiling point of the refrigerant that has undergone depressurization treatment is reduced after flowing into the evaporator pipeline, making it easier for the refrigerant inside the evaporator pipeline to absorb heat and evaporate, and continuously absorb the heat of the hydraulic oil to achieve cooling and lowering treatment of the high-temperature hydraulic oil. The refrigerant flowing out of the evaporator 206 enters the compressor again, and the compressor then increases the pressure of the refrigerant, and then flows into the inside of the condenser pipeline. Thereafter, the refrigerant flows from the condenser pipeline into the capillary tube, forming a circulating refrigeration effect.

[0082] Reference Figures 6 to 10 The embodiment of the present application provides a hydraulic oil cooling device for a hydraulic pump station of a molding machine. The sweating cooling component includes a fiber liquid-absorbing layer 213 connected to the inner cavity of a hollow heat-conducting rod 203. The fiber liquid-absorbing layer 213 absorbs a liquid refrigerant part. The liquid refrigerant part is preferably liquid alcohol. The fiber liquid-absorbing layer 213 is made of a fiber material with hygroscopic properties.

[0083] After the oil temperature of the hydraulic oil in the hydraulic pump station structure is continuously transferred to the sweating cooling part in the tentacle unit, the liquid refrigerant part in the sweating cooling part absorbs the heat of the oil temperature and evaporates due to the heat. The evaporated liquid refrigerant part liquefies when it contacts the colder inner wall of the upper part of the inner cavity of the hollow heating rod 203, slides along the inner wall of the hollow heating rod 203, and is absorbed by the fiber liquid absorption layer 213 again, thereby realizing passive circulation cooling treatment of the hydraulic oil.

[0084] Reference Figures 6 to 9 The embodiment of the present application provides a hydraulic oil cooling device for a hydraulic pump station of a molding machine, wherein the thermal sensing element includes an internal heat-conducting shell 209 disposed in the inner cavity of a hollow heat-conducting rod 203 and having its bottom end connected to the bottom wall of the inner cavity of the hollow heat-conducting rod 203;

[0085] The thermal expansion and contraction medium layer 210 is filled in the inner cavity of the internal heat-conducting cylinder shell 209;

[0086] The side wall of the internal heat-conducting cylinder shell 209 is provided with a spring slot adapted to fit the forcing spring 212 , and the forcing spring 212 is connected to the spring slot;

[0087] The cylindrical air-permeable mesh cover 211 is sleeved on the outside of the internal heat-conducting cylindrical shell 209 .

[0088] When the temperature of the hydraulic oil exceeds the preset critical upper limit, the thermal expansion and contraction medium layer 210 in the thermal sensing element expands due to heat, driving the spring 212 to elastically bulge outward and drive the retraction mechanism to retract, causing the two contact terminals 223 to contact and triggering the signal transmitting unit to send an opening control signal to the pump station controller 102 in the hydraulic pump station structure. The pump station controller 102 in the hydraulic pump station structure then controls the forced refrigeration module to open and actively force cooling of the hydraulic oil with too high a temperature, so that it can be quickly cooled down, which helps to improve the stability of the operation of the hydraulic pump station of the molding machine.

[0089] When the thermal expansion and contraction medium layer 210 expands due to heat and drives the forcing spring piece 212 to elastically bulge outward, the cylindrical breathable mesh cover 211 sleeved on the outer periphery of the forcing spring piece 212 limits the range of movement of the forcing spring piece 212, preventing the protruding forcing spring piece 212 from closely adhering to the surface of the fiber liquid-absorbing layer 213, thereby affecting the normal sweating and cooling effect of the sweating and cooling component.

[0090] Reference Figure 6 , Figure 7 and Figure 9 The embodiment of the present application provides a hydraulic oil cooling device for a hydraulic pump station of a molding machine, wherein the retracting mechanism includes a heat-insulating bottom cylinder 215, and a heat-insulating end cap 208 is sealed and connected to an open end of the heat-insulating bottom cylinder 215, wherein the heat-insulating bottom cylinder 215 and the heat-insulating end cap 208 are both made of insulating and heat-insulating materials;

[0091] A crossbar is slidably inserted into the end of the heat-insulating bottom tube 215 away from the heat-insulating end cover 208, and one end of the crossbar extends into the inner cavity of the heat-insulating bottom tube 215 and is connected to a sealing plug seat 216 that slides sealingly in the inner cavity of the heat-insulating bottom tube 215. The other end of the crossbar extends from the end of the heat-insulating bottom tube 215 and is connected to a curved support plate 214.

[0092] A first return spring connected between the sealing plug seat 216 and the thermal insulation end cover 208 is also provided in the inner cavity of the thermal insulation bottom cylinder 215;

[0093] An opening is also formed on the end of the heat-insulating bottom cylinder 215 away from the heat-insulating end cover 208;

[0094] The heat-insulating bottom cylinder 215 is connected to the side wall of the hollow heat-conducting rod 203;

[0095] When the retracting mechanism is in the initial extension state, the first return spring is in the relaxed state, and the arc-shaped abutting plate 214 passes through the reserved notch and abuts against the side wall surface of the forcing elastic piece 212 .

[0096] Reference Figure 7 and Figure 10, the embodiment of the present application provides a hydraulic oil cooling device for a hydraulic pump station of a molding machine, wherein the channel structure includes an annular processing groove 220 and an exhaust channel provided inside the top end of a hollow heat-conducting rod 203;

[0097] An annular plug body 219 is sealed and slidably mounted in the inner cavity of the annular processing groove 220. A second return spring is also disposed in the inner cavity of the annular processing groove 220. One end of the second return spring is connected to the bottom of the annular plug body 219, and the other end is connected to the bottom wall of the annular processing groove 220.

[0098] One end of the exhaust channel is connected to the bottom end of the annular processing tank 220, and the other end passes through the side wall of the hollow heat-leading rod 203 and is connected to the atmosphere;

[0099] One end of the drainage pipe 218 is connected to the insulating end cover 208 and communicates with the inner cavity of the insulating bottom cylinder 215, and the other end penetrates into the interior of the hollow heat-conducting rod 203 and communicates with the top of the annular processing tank 220.

[0100] In the process of the thermal expansion and contraction medium layer 210 in the thermal sensing component expanding due to heat and driving the spring piece 212 to elastically bulge outward and drive the cross bar in the retraction mechanism to retract, the sealing plug seat 216 that moves synchronously with the cross bar continuously injects the insulating coolant 217 into the channel structure at the top of the hollow heating rod 203 through the drainage pipe 218, so that the temperature difference between the two ends of the hollow heating rod 203 is increased, and the heat exchange efficiency of the tentacle unit is enhanced, so that the evaporated liquid coolant medium part can be more quickly taken away when it contacts the inner wall of the hollow heating rod 203, and it is quickly liquefied, thereby enhancing the sweating cooling efficiency of the sweating cooling component, and thus helping to improve the cooling efficiency of the hydraulic oil.

[0101] Reference Figure 6 , Figure 11 and Figure 12 The embodiment of the present application provides a hydraulic oil cooling device for a hydraulic pump station of a molding machine, wherein the signal transmitting unit includes a control circuit board 224 connected to an end of the heat-insulating end cover 208 close to the opening of the heat-insulating bottom cylinder 215, and a wireless signal transmitter 225 is provided on the control circuit board 224;

[0102] The elastic slider member includes a pulling slide 221 slidably connected to the inner cavity of the heat-insulating bottom cylinder 215. A spring 222 is provided on the side of the pulling slide 221 away from the heat-insulating end cover 208, and the spring 222 is connected between the pulling slide 221 and the sealing plug seat 216. The pulling slide 221 is made of insulating material.

[0103] One of the excitation terminals 223 is connected to the heat-insulating end cover 208 in the retraction mechanism, and the other excitation terminal 223 is connected to the pulling slide 221 in the elastic slider member;

[0104] When the two excitation terminals 223 are in contact, the control circuit board 224 is triggered to control the wireless signal transmitter 225 to turn on, and then the wireless signal transmitter 225 sends a turn-on control signal to the pump station controller 102 .

[0105] Through the insulating coolant 217 located in the retraction mechanism, when the two contact terminals 223 are connected, heat dissipation and cooling of the contact terminals 223 and the signal transmitting unit can be achieved, which not only helps to extend the service life of the synchronous control module, but also helps to improve the operational stability of the synchronous control module.

[0106] When the thermal expansion and contraction medium layer 210 in the thermal sensing element is driven by thermal expansion to force the spring 212 to elastically bulge outward, the space inside the hollow heat-conducting rod 203 for the liquid refrigerant part to evaporate is further occupied, so that the internal space of the hollow heat-conducting rod 203 is optimized, and after the forced cooling module is turned on, the cold source is continuously transferred to the upper cover through the thermal gasket 204, and the cold source is then quickly transferred from the upper cover to the upper surface of the hollow heat-conducting rod 203 and continuously dissipates heat to the insulating coolant 217 in the channel structure. The above-mentioned effects are superimposed, so that the evaporated liquid refrigerant medium can reach the upper part of the inner cavity of the hollow heating rod 203 more quickly and quickly contact with the colder inner wall of the hollow heating rod 203 to liquefy, thereby helping to further enhance the cooling effect on the hydraulic oil, shorten the cooling time of the hydraulic oil, and enable the hydraulic oil temperature to be quickly reduced to below the preset critical upper limit, thereby helping to shorten the opening time of the forced refrigeration module and reduce the energy consumption of equipment operation.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A hydraulic oil cooling device for a hydraulic pump station of a molding machine, characterized by: It includes a hydraulic pump station structure and a heat introduction and cooling structure arranged on the hydraulic pump station structure; The heat-introducing cooling structure includes a forced cooling module and a plurality of tentacle assemblies that can forcibly cool the high-temperature hydraulic oil in the hydraulic pump station and are electrically connected to the hydraulic pump station structure; The tentacle assembly includes an upper cover in contact with the hydraulic pump station structure, and a plurality of tentacle units are evenly arranged on the upper cover; The tentacle unit includes a hollow heat-inducing rod plugged into the upper cover, and the bottom end of the hollow heat-inducing rod extends into the interior of the hydraulic pump station structure and contacts the hydraulic oil, and the top end extends from the top of the upper cover and contacts the atmosphere. A layer of sweating cooling element is provided on the side wall of the inner cavity of the hollow heat-inducing rod, and a heat-sensing element is also provided in the inner cavity of the hollow heat-inducing rod. The heat-sensing element includes a thermal expansion and contraction medium layer and a forced spring, and the thermal expansion and contraction medium layer is filled in the interior of the sensing element. A cylindrical breathable mesh cover is also sleeved on the outside of the heat-sensing element. A speed-increasing cooling member is provided at the position of the side wall of the hollow heat-increasing rod corresponding to the position of the forcing spring piece. The speed-increasing cooling member includes a retractable and movable retracting mechanism made of a heat-insulating material and a channel structure provided at the top end of the hollow heat-increasing rod. A reserved notch is provided at the position of the cylindrical air-permeable mesh cover corresponding to the position of the retracting mechanism. The fixed end of the retracting mechanism is connected to the hollow heat-increasing rod, and when the retracting mechanism is in the initial extension state, the end of its free end abuts against the surface of the side wall of the forcing spring piece. The retraction mechanism includes an insulating coolant filled therein and a drainage pipe, and the retraction mechanism is connected to the channel structure through the drainage pipe, and the drainage pipe is also filled with insulating coolant; A synchronization control module electrically connected to the hydraulic pump station structure and located inside the retraction mechanism is also provided on one of the tentacle units in one of the tentacle assemblies; The synchronous control module includes a signal transmitting unit, two excitation terminals arranged opposite to each other, and an elastic slider connected to the free end of the retraction mechanism, wherein one of the excitation terminals is connected to the fixed end of the retraction mechanism, and the other excitation terminal is connected to the elastic slider; When the two trigger terminals are in contact, the trigger signal transmitting unit sends an opening control signal to the hydraulic pump station structure.

2. The hydraulic oil cooling device of the hydraulic pump station of the molding machine according to claim 1 is characterized in that: The sweating cooling element comprises a fiber liquid-absorbing layer connected to the inner cavity of the hollow heat-leading rod, and the fiber liquid-absorbing layer absorbs liquid refrigerant.

3. The hydraulic oil cooling device of the molding machine hydraulic pump station according to claim 1 is characterized in that: The thermal sensing element comprises an inner heat-conducting cylindrical shell which is arranged in the inner cavity of the hollow heat-conducting rod and the bottom end of which is connected to the bottom wall of the inner cavity of the hollow heat-conducting rod; The thermal expansion and contraction medium layer is filled in the inner cavity of the heat-conducting cylinder shell; The side wall of the inner heat-conducting cylinder shell is provided with a spring slot adapted to the forcing spring, and the forcing spring is connected to the spring slot; The cylindrical air-permeable mesh cover is sleeved on the outside of the internal heat-conducting cylindrical shell.

4. The hydraulic oil cooling device of the hydraulic pump station of the molding machine according to claim 3 is characterized in that: The retraction mechanism includes a heat-insulating bottom cylinder, and a heat-insulating end cap is sealed and connected to one end of the opening of the heat-insulating bottom cylinder; A crossbar is slidably inserted into the end of the heat-insulating bottom tube away from the heat-insulating end cover, and one end of the crossbar extends into the inner cavity of the heat-insulating bottom tube and is connected to a sealing plug seat that slides sealingly in the inner cavity of the heat-insulating bottom tube, and the other end of the crossbar extends from the end of the heat-insulating bottom tube and is connected to a curved surface support plate; A first return spring connected between the sealing plug seat and the thermal insulation end cover is also provided in the inner cavity of the thermal insulation bottom cylinder; An opening is also provided on one end of the heat-insulating bottom cylinder away from the heat-insulating end cover.

5. The hydraulic oil cooling device of the hydraulic pump station of the molding machine according to claim 4 is characterized in that: The heat-insulating bottom cylinder is connected to the side wall of the hollow heat-conducting rod; When the retracting mechanism is in an initial extended state, the first return spring is in a relaxed state, and the arc-surface abutment plate passes through the reserved notch and abuts against the side wall surface of the forcing spring piece.

6. The hydraulic oil cooling device of the hydraulic pump station of the molding machine according to claim 4, characterized in that: The channel structure includes an annular processing groove and an exhaust channel arranged inside the top end of the hollow heat-conducting rod; An annular plug body is sealingly slidably disposed in the inner cavity of the annular processing groove. A second return spring is also disposed in the inner cavity of the annular processing groove, and one end of the second return spring is connected to the bottom of the annular plug body, and the other end is connected to the bottom wall of the annular processing groove; One end of the exhaust channel is connected to the bottom end of the annular processing tank, and the other end passes through the side wall of the hollow heat-leading rod and is connected to the atmosphere.

7. The hydraulic oil cooling device of the hydraulic pump station of the molding machine according to claim 6, characterized in that: One end of the drainage pipeline is connected to the insulation end cover and communicated with the inner cavity of the insulation bottom cylinder, and the other end penetrates into the interior of the hollow heat-conducting rod and communicated with the top of the annular treatment tank.

8. The hydraulic oil cooling device of the hydraulic pump station of the molding machine according to claim 1 is characterized in that: The upper cover comprises a mounting base, the bottom of which is connected to a heat-conducting base integrally formed therewith; The bottom of the mounting base is also connected to a thermally conductive gasket, and the thermally conductive gasket is arranged around the periphery of the thermally conductive base; The hollow heat-conducting rod is plugged and fixed on an integrally formed structure consisting of a mounting base and a heat-conducting base.

9. The hydraulic oil cooling device of the hydraulic pump station of the molding machine according to claim 8, characterized in that: The hydraulic pump station structure includes a molding machine hydraulic pump station body, and the molding machine hydraulic pump station body is provided with a pump station controller; The forced refrigeration module includes a refrigeration compressor unit and a heat-conducting housing fixedly installed in the inner cavity of the oil tank of the main body of the hydraulic pump station of the molding machine. An evaporator is arranged inside the heat-conducting housing. One end of the evaporator is connected to the input end of the refrigeration compressor unit, and the other end is connected to the output end of the refrigeration compressor unit. A top opening adapted to the heat-conducting base is provided on the top of the main body of the hydraulic pump station of the molding machine at a position corresponding to the position of the oil tank thereof. The heat-conducting base is sealably and movably inserted into the inside of the top opening, and the mounting base is fixedly connected to the main body of the hydraulic pump station of the molding machine; The bottom end of the hollow heat-inducing rod extends into the interior of the oil tank in the main body of the hydraulic pump station of the molding machine and contacts with the hydraulic oil.

10. The hydraulic oil cooling device of the hydraulic pump station of the molding machine according to claim 9, characterized in that: The signal transmitting unit includes a control circuit board connected to one end of the heat-insulating end cover close to the opening of the heat-insulating bottom cylinder, and the control circuit board is provided with a wireless signal transmitter; The elastic slider comprises a pulling slide seat slidably connected to the inner cavity of the heat-insulating bottom cylinder, a spring is provided on the side of the pulling slide seat away from the heat-insulating end cover, and the spring is connected between the pulling slide seat and the sealing plug seat; One of the excitation terminals is connected to the heat-insulating end cover in the retraction mechanism, and the other excitation terminal is connected to the pulling slide seat in the elastic slider member; When the two trigger terminals are in contact, the control circuit board is triggered to control the wireless signal transmitter to turn on, and then the wireless signal transmitter sends a start control signal to the pump station controller.

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