CN115042388A

CN115042388A - Injection mold with cooling circulation structure

Info

Publication number: CN115042388A
Application number: CN202210763751.3A
Authority: CN
Inventors: 陈一鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-13

Abstract

The embodiment of the application provides an injection mold with a cooling circulation structure, and relates to the technical field of injection mold cooling. This injection mold with cooling cycle structure includes: the cooling device comprises a mould cooling mechanism, a cooling circulation mechanism and a water source storage mechanism. The die cooling mechanism comprises an upper die plate, a lower die plate, an upper die holder, a lower die holder and a heat conducting piece, wherein the upper die plate is located above the lower die plate, the upper die holder is installed at the top of the upper die plate, the lower die holder is installed at the bottom of the lower die plate, and cavity layers are respectively arranged inside the upper die holder and the lower die holder. The heat conducting piece can respectively and outwards give off the heat in upper die base and the die holder fast, reduces the temperature of water source in upper die base and the die holder, and the water source after the reduction in temperature is reserved in water source storage mechanism through the return water pipe backward flow and is used for the cycle. This cooling circulation mechanism can conduct the heat in the mould fast and give off, and the working of plastics after moulding plastics can carry out rapid cooling shaping.

Description

Injection mold with cooling circulation structure

Technical Field

The application relates to the technical field of cooling of injection molds, in particular to an injection mold with a cooling circulation structure.

Background

The plastic injection mold mainly comprises a female die with a variable cavity and composed of a female die combined substrate, a female die component and a female die combined clamping plate, and a male die with a variable core and composed of a male die combined substrate, a male die component, a male die combined clamping plate, a cavity cut-off component and a side cut-off combined plate. The female die and the male die in the plastic injection mold are matched with each other to process series plastic parts with different shapes and sizes.

When the plastic injection mold performs hot injection molding, the temperature of the plastic formed in the mold is high, and the formed plastic part is difficult to be rapidly cooled in a natural cooling or air cooling mode in the related technology.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides an injection mold with a cooling circulation structure to solve the problem that when the plastic injection mold is used for hot injection molding, the temperature of the plastic formed in the mold is high, and the plastic part formed in the related art is difficult to be rapidly cooled by adopting a natural cooling or air cooling mode.

An injection mold with a cooling circulation structure according to an embodiment of the present application includes: the cooling device comprises a mould cooling mechanism, a cooling circulation mechanism and a water source storage mechanism.

The die cooling mechanism comprises an upper die plate, a lower die plate, an upper die holder, a lower die holder and a heat conducting piece, wherein the upper die plate is positioned above the lower die plate, the upper die holder is arranged at the top of the upper template, the lower die holder is arranged at the bottom of the lower template, the inner parts of the upper die holder and the lower die holder are respectively provided with a cavity layer, the two groups of heat conducting pieces are respectively arranged above the upper die holder and below the lower die holder, the cooling circulation mechanism comprises a water pump, a water inlet pipe, a water outlet pipe and a water return pipe, one end of the water inlet pipe is communicated with a water inlet port of the water pump, one end of the water outlet pipe is communicated with a water outlet port of the water pump, the other end of the water outlet pipe is respectively communicated with the upper die base and the lower die base, one end of the water return pipe is respectively communicated with the upper die base and the lower die base, the other end of the water inlet pipe and the other end of the water return pipe are respectively communicated with the water source storage mechanism.

In some embodiments of the present application, one side of the upper die holder and one side of the lower die holder are respectively communicated with a first connection hose and a second connection hose, and the other ends of the first connection hose and the second connection hose are respectively communicated with one end of the water outlet pipe.

In some embodiments of the application, one side of the upper die base and one side of the lower die base are respectively communicated with a third connecting hose and a fourth connecting hose, and the other ends of the third connecting hose and the fourth connecting hose are respectively communicated with one end of the water return pipe.

In some embodiments of this application, the heat-conducting member includes heat-conducting plate and fin, two the heat-conducting plate respectively fixed set up in upper die base top and die holder bottom, a plurality of the fin equidistance fixed connection respectively in heat-conducting plate one side.

In some embodiments of the present application, the mold cooling mechanism further includes a heat dissipation fan installed at a side of the heat dissipation fin away from the heat conductive plate.

In some embodiments of the present application, the upper die base and the lower die base are the same in structural specifications.

In some embodiments of the present application, the upper mold base includes a box body and a box cover, and the box cover is fixedly disposed on the top of the box body.

In some embodiments of this application, the box body is inside to be fixed to be provided with the baffle that the equidistance distributes, the baffle top is provided with through-hole a plurality of.

In some embodiments of the present application, the first valve and the pressure control valve are respectively disposed outside the water inlet pipe.

In some embodiments of the present application, a pressure gauge is mounted outside the inlet pipe.

The injection mold with the cooling circulation structure only adopts the heat-conducting plate, the radiating fins and the radiating fan in the heat-conducting part to radiate the circulating water source, and the radiating effect of the circulating water source is general.

The injection mold with the cooling circulation structure further comprises a water source cooling mechanism, the water source cooling mechanism comprises a box body, a box cover, a supporting frame, a first wet curtain, a second wet curtain, an exhaust fan, a water source dispersing component and a guide ring plate, the box cover is detachably mounted at the top of the box body, a water inlet is formed in the top of the box cover, one end of a water return pipe is communicated with the water inlet, the water source dispersing component is mounted inside the box body, the water source dispersing component is located below the water inlet, the first wet curtain and the second wet curtain are respectively located on two sides of the water source dispersing component, the first wet curtain and the second wet curtain are respectively and fixedly arranged inside the box body, an air inlet is formed in one side of the box body close to the second wet curtain, an air outlet is formed in one side of the box body close to the first wet curtain, and the exhaust fan is mounted inside the air outlet, a plurality of water conservancy diversion crown plate is from last to being fixed in respectively to inclining the equidistance down first wet curtain with the relative one side of wet curtain of second, just water conservancy diversion crown plate with box inner wall fixed connection, the support frame is fixed in the bottom half, just the support frame install in water source storage mechanism top, the bottom half intercommunication has the drain pipe, just the drain pipe bottom communicate in water source storage mechanism.

In some embodiments of this application, the water source dispersion subassembly includes dustcoat, link, conical disk and motor, link one end fixed connection in the dustcoat, just link other end fixed connection in the box inner wall, the motor install in inside the dustcoat, just motor output rod end rotate run through in the dustcoat top, conical disk bottom with motor output shaft fixed connection.

In some embodiments of the present application, the air inlet is internally provided with a screen plate.

When the circulating water source enters the upper die base and the lower die base, the upper die base, the heat conducting piece outside the lower die base and the heat dissipation fan carry out primary cooling on the water source in the lower die base and the upper die base, and the cooled water source flows back to the interior of the box body in the water source cooling mechanism along the water return pipe.

The water source cooling mechanism can carry out secondary cooling on the circulating water source after heat conduction; the water source that the wet return flows back promptly flows into the conical disk top in the water source dispersion subassembly through the water inlet at box top, and motor output shaft end drives the conical disk and rotates, drives the water source that falls on the conical disk top promptly and rotates. The water source above the conical disc is subjected to centrifugal force and then flies outwards along the upper surface of the conical disc, so that heat in the water source is rapidly dissipated inside the box body. At this moment, the inside air of box is taken out to the box outside from the air outlet to the exhaust fan of operation, and outside air is followed the air intake and is mended to the inside formation air flow that forms of box, and the heat that the heat dissipation was sent out in the water stain that will splash is taken away fast to the air that flows. The water source that splashes in a rotating mode increases the contact area of flowing air and the water source, the efficiency that the flowing air carries away heat in the water source can be effectively improved, and the water temperature in the water source is further rapidly cooled.

The water source that falls on the conical disc finally splashes to guide ring plate top under the effect of centrifugal force, flows into to the first wet curtain and the second wet curtain of both sides along the guide ring plate that the slope set up, and the water source on first wet curtain and the second wet curtain moves down slowly along wet curtain, and the flowing air that flows through first wet curtain and the wet curtain of second has more contact time with the water source on first wet curtain and the wet curtain of second, even make the heat in the water source can be by more discharge, reduce the temperature in the circulating water source. First wet curtain and the wet curtain of second except can reducing the speed of circulation water source at the inside whereabouts of box, also can disperse the circulation water source of wet curtain simultaneously, increase the area of contact of circulation water source and mobile air, the cooperation heat dissipation fan further promotes the speed and the efficiency of water source cooling. And finally, the water source in the box body flows into the water storage tank in the water source storage mechanism through the drain pipe at the bottom for storage.

The injection mold with the cooling circulation structure only adopts physical cooling, and the temperature of the circulating water source cannot be further reduced in a refrigeration mode.

In some embodiments of the present application, the water source storage mechanism includes a mounting frame, a supporting ring plate, a water storage tank, a fixing plate, a first downcomer, a second downcomer, an outer shell and a refrigerating sheet, the supporting ring plate is fixedly arranged on the top of the mounting frame, the water storage tank is fixedly arranged on the top of the supporting ring plate, the bottom end of the drainpipe is communicated with the top of the water storage tank, the fixing plate is fixedly arranged inside the water storage tank, the top end of the first downcomer penetrates through the fixing plate, a second valve is arranged outside the first downcomer, the top end of the second downcomer is communicated with the bottom of the water storage tank, a third valve is arranged outside the second downcomer, the bottom end of the second downcomer is communicated with one end of the water inlet pipe, two groups of the outer shells are respectively arranged above and below the fixing plate, and each group of the plurality of outer shells are respectively communicated and fixed on the outer wall of the water storage tank, the plurality of refrigeration pieces are correspondingly arranged on one side, far away from the water storage tank, of the shell.

In some embodiments of the present application, the water storage tank is provided with two level meters outside respectively, and two the level meters are located respectively above and below the fixed plate.

The water source storage mechanism can carry out three-stage cooling on the circulating water source; that is, the water source in the box body enters the water storage tank through the drain pipe at the bottom, and the fixing plate divides the water storage tank into an upper cavity and a lower cavity. The water source that gets into in advance to the inside upper cavity of water storage tank from drain pipe exhaust circulation water source, the water source in the upper cavity gets into inside the shell, the refrigeration piece refrigeration face refrigerates with the shell laminating, cool down once through the inside water source of shell heat-conduction mode with fixed plate top upper cavity, open the second valve and make the circulation water source of once cooling of fixed plate top flow into to the lower floor cavity of fixed plate below inside from first downcomer, the refrigeration piece refrigeration face refrigerates with the shell laminating, cool down twice through the inside water source of shell heat-conduction mode with fixed plate below lower floor cavity, accomplish the tertiary cooling at circulation water source promptly, make the temperature at circulation water source further descend, when recycling the use once more, still there is good heat conduction cooling effect to the mould. And the water source after the third-level temperature reduction flows into the water inlet pipe from the second sewer pipe by opening the third valve, and finally, the water source is recycled by the water pump.

The beneficial effect of this application is: when the injection mold with the cooling circulation structure is used, a water pump in the cooling circulation structure pumps water in the water source storage mechanism, and the water is respectively conveyed into the upper mold base and the lower mold base through the water inlet pipe and the water outlet pipe; the water sources in the upper die holder and the lower die holder respectively conduct heat in the upper template and the lower template into the upper die holder and the lower die holder through heat conduction. The heat in the upper die base and the heat in the lower die base can be dissipated outwards rapidly through the two groups of heat conducting parts respectively, the temperature of a water source in the upper die base and the temperature of a water source in the lower die base are reduced, and the water source with the reduced temperature flows back to the water source storage mechanism through the water return pipe to be reserved for recycling. This cooling circulation mechanism can conduct the heat in the mould fast and give off, and the working of plastics after moulding plastics can carry out rapid cooling shaping.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic diagram of an injection mold having a cooling cycle structure according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a mold cooling mechanism according to an embodiment of the present application;

FIG. 3 is a schematic view of an upper die base and a spacer according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a cooling cycle mechanism according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a water source cooling mechanism and a water source storage mechanism according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a cover-less water source cooling mechanism according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a water source dispersion assembly according to an embodiment of the present application;

FIG. 8 is a schematic view of a cone and motor configuration according to an embodiment of the present application;

FIG. 9 is a first schematic structural view of a water source storage mechanism without a mounting bracket and without a support ring plate according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a second embodiment of a water source storage mechanism without a mounting bracket and without a support ring plate.

Icon:

10-a mold cooling mechanism; 110-upper template; 120-lower template; 130-an upper die holder; 131-a box body; 132-a box cover; 140-a lower die holder; 150-a separator; 151-through holes; 160-a thermally conductive member; 161-thermally conductive plate; 162-a heat sink; 170-heat dissipation fan; 20-a cooling circulation mechanism; 210-a water pump; 220-water inlet pipe; 221-a first valve; 222-a pressure control valve; 230-a water outlet pipe; 241-a first connecting hose; 242-a second connecting hose; 250-a water return pipe; 261-a third connecting hose; 262-a fourth connecting hose; 270-pressure gauge; 30-a water source cooling mechanism; 310-a box body; 320-box cover; 330-a support frame; 340-a first wet curtain; 350-a second wet curtain; 360-exhaust fan; 370-a water source dispersion assembly; 371 — outer casing; 372-a connecting frame; 373-a conical disk; 374-the motor; 380-guide ring plate; 390-screen plate; 40-a water source storage mechanism; 410-a mounting frame; 420-a support ring plate; 430-a water storage tank; 440-a fixed plate; 450-a first downcomer; 451-a second valve; 460-a second downcomer; 461-third valve; 470-a housing; 480-a refrigerating sheet; 490-liquid level meter.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

An injection mold having a cooling cycle structure according to an embodiment of the present application is described below with reference to the accompanying drawings.

Referring to fig. 1 to 10, an injection mold with a cooling cycle structure according to an embodiment of the present application includes: a mold cooling mechanism 10, a cooling circulation mechanism 20, and a water source storage mechanism 40.

Wherein, cooling circulation mechanism 20 can circulate the water source of the inside storage of water source storage mechanism 40 and carry to mould cooling mechanism 10 in, can carry out rapid cooling through cooling circulation mechanism 20 cooperation mould cooling mechanism 10 and handle the shaping to the working of plastics in the mould, improves the cooling speed of working of plastics in the mould.

Referring to fig. 2, the mold cooling mechanism 10 includes an upper mold plate 110, a lower mold plate 120, an upper mold base 130, a lower mold base 140, and a heat conducting member 160. The upper template 110 is located above the lower template 120, the upper die base 130 is installed at the top of the upper template 110, the lower die base 140 is installed at the bottom of the lower template 120, and the lower die base 140 and the lower template 120 are fixed by bolts. The upper die holder 130 and the lower die holder 140 are respectively provided with a cavity layer inside, and the two sets of heat-conducting elements 160 are respectively arranged above the upper die holder 130 and below the lower die holder 140.

In some embodiments of the present application, referring to fig. 2, the heat conductive member 160 includes a heat conductive plate 161 and a heat sink 162. The two heat-conducting plates 161 are respectively and fixedly arranged at the top of the upper die holder 130 and the bottom of the lower die holder 140, and the heat-conducting plates 161 are respectively fixed with the upper die holder 130 and the lower die holder 140 by bolts; the plurality of radiating fins 162 are respectively and fixedly connected to one side of the heat conducting plate 161 at equal intervals; the heat sink 162 and the heat conductive plate 161 are fixed to each other by bolts. The mold cooling mechanism 10 further includes a heat radiation fan 170, and the heat radiation fan 170 is installed at a side of the heat radiation fin 162 away from the heat conductive plate 161. The heat-conducting plate 161 conducts the heat in the upper die holder 130 and the lower die holder 140 to the heat-dissipating fins 162, and the heat-dissipating fins 162 can dissipate the heat to the outside, and the heat on the heat-dissipating fins 162 can be driven by the cooperation of the heat-dissipating fan 170 to be dissipated to the outside rapidly, i.e. the heat in the upper die holder 130 and the lower die holder 140 is reduced rapidly. The heat conductive plate 161 and the heat dissipation fins 162 may be made of an aluminum plate or a copper plate having a good heat conduction effect.

In some embodiments of the present application, referring to fig. 3, the upper die base 130 and the lower die base 140 have the same structural specifications. The upper die holder 130 comprises a box body 131 and a box cover 132, and the box cover 132 is fixedly arranged at the top of the box body 131; the box cover 132 and the box body 131 are fixed by bolts. Partition boards 150 which are distributed at equal intervals are fixedly arranged inside the box body 131, and a plurality of through holes 151 are arranged at the top of each partition board 150; the partition 150 serves to divide the flow of water inside the case 131.

The cooling circulation mechanism 20 includes a water pump 210, a water inlet pipe 220, a water outlet pipe 230, and a water return pipe 250. One end of the water inlet pipe 220 is communicated with the water inlet port of the water pump 210, one end of the water outlet pipe 230 is communicated with the water outlet port of the water pump 210, the other end of the water outlet pipe 230 is respectively communicated with the upper die base 130 and the lower die base 140, and one end of the water return pipe 250 is respectively communicated with the upper die base 130 and the lower die base 140. The other end of the water inlet pipe 220 and the other end of the water return pipe 250 are respectively communicated with the water source storage mechanism 40.

Referring to fig. 2 and 4, the water pump 210 in the cooling circulation mechanism 20 pumps the water from the water storage mechanism 40 and delivers the water to the upper die base 130 and the lower die base 140 through the water inlet pipe 220 and the water outlet pipe 230, respectively; the water supply in the upper die bed 130 and the lower die bed 140 conducts heat in the upper die plate 110 and the lower die plate 120 to the upper die bed 130 and the lower die bed 140, respectively, by heat conduction. The two groups of heat conducting elements 160 can respectively and rapidly radiate heat in the upper die holder 130 and the lower die holder 140 outwards, so that the temperature of a water source in the upper die holder 130 and the lower die holder 140 is reduced, and the water source with the reduced temperature flows back to the water source storage mechanism through the water return pipe 250 to be recycled. This cooling circulation mechanism 20 can conduct the heat in the mould fast and give off, and the working of plastics after moulding plastics can carry out rapid cooling shaping.

In some embodiments of the present application, referring to fig. 2, a first connection hose 241 and a second connection hose 242 are respectively connected to one side of the upper die base 130 and one side of the lower die base 140. The other ends of the first connection hose 241 and the second connection hose 242 are respectively communicated with one end of the water outlet pipe 230. One sides of the upper die holder 130 and the lower die holder 140 are respectively communicated with a third connecting hose 261 and a fourth connecting hose 262, and the other ends of the third connecting hose 261 and the fourth connecting hose 262 are respectively communicated with one end of the water return pipe 250. The first connection hose 241, the second connection hose 242, the third connection hose 261 and the fourth connection hose 262 are provided to facilitate the movement of the upper mold plate 110, the upper mold base 130, the lower mold plate 120 and the lower mold base 140 in the vertical direction.

In some embodiments of the present application, referring to fig. 4, a first valve 221 and a pressure control valve 222 are respectively disposed outside the water inlet pipe 220. A pressure gauge 270 is installed outside the water inlet pipe 220. The first valve 221 is used for controlling the water inlet pipe 220 to flow in and out, and the pressure gauge 270 matched with the pressure control valve 222 is used for monitoring and controlling the water pressure in the water inlet pipe 220.

The injection mold with the cooling circulation structure just adopts the heat conducting plate 161, the heat radiating fins 162 and the heat radiating fan 170 in the heat conducting member 160 to radiate the heat of the circulating water source, and the heat radiating effect of the circulating water source is general.

Referring to fig. 5-8, the injection mold with a cooling cycle structure further includes a water source cooling mechanism 30, wherein the water source cooling mechanism 30 includes a case 310, a case cover 320, a supporting frame 330, a first wet curtain 340, a second wet curtain 350, a fan 360, a water source dispersing assembly 370, and a baffle plate 380. The cover 320 is detachably mounted on the top of the case 310, and the cover 320 and the case 310 are fixed by bolts. The top of the tank cover 320 is provided with a water inlet, and one end of the return pipe 250 is communicated with the water inlet. The water source dispersion assembly 370 is installed inside the box body 310, the water source dispersion assembly 370 is positioned below the water inlet, the first wet curtain 340 and the second wet curtain 350 are respectively positioned at two sides of the water source dispersion assembly 370, and the first wet curtain 340 and the second wet curtain 350 are respectively and fixedly arranged inside the box body 310; the first wet curtain 340 and the second wet curtain 350 are fixed to the box body 310 by bolts. An air inlet is formed at one side of the box body 310 close to the second wet curtain 350, and a filter screen plate 390 is arranged inside the air inlet. An air outlet is formed at one side of the box body 310 close to the first wet curtain 340, and the exhaust fan 360 is installed inside the air outlet. The guide ring plates 380 are respectively obliquely and equidistantly fixed on one side of the first wet curtain 340 and the second wet curtain 350 from top to bottom, the guide ring plates 380 are fixedly connected with the inner wall of the box body 310, and the guide ring plates 380 are respectively fixed with the first wet curtain 340 and the second wet curtain 350 by bolts; the supporting frame 330 is fixed at the bottom of the box 310, and the supporting frame 330 is installed at the top of the water source storage mechanism 40, the bottom of the box 310 is communicated with a drain pipe, and the bottom end of the drain pipe is communicated with the water source storage mechanism 40. The water supply dispersion assembly 370 includes an outer casing 371, a connection frame 372, a conical disk 373, and a motor 374. One end of the connecting frame 372 is fixedly connected with the outer casing 371, the other end of the connecting frame 372 is fixedly connected with the inner wall of the box body 310, and the connecting frame 372 is fixed with the box body 310 and the outer casing 371 through bolts; the motor 374 is installed inside the outer casing 371, the output rod end of the motor 374 rotatably penetrates through the top of the outer casing 371, and the bottom of the conical disc 373 is fixedly connected with the output shaft end of the motor 374; the conical disc 373 is fixed with the output shaft end of the motor 374 by welding.

When the circulating water enters the upper die holder 130 and the lower die holder 140, the heat conducting member 160 and the heat dissipating fan 170 outside the upper die holder 130 and the lower die holder 140 perform primary cooling on the water in the upper die holder 130 and the lower die holder 140, and the cooled water flows back to the inside of the box 310 in the water cooling mechanism 30 along the water return pipe 250.

The water source cooling mechanism 30 can perform secondary cooling on the circulating water source after heat conduction; that is, the water returned from the water return pipe 250 flows into the upper part of the conical disc 373 of the water source dispersing assembly 370 through the water inlet at the top of the tank 310, and the output shaft of the motor 374 drives the conical disc 373 to rotate, that is, the water source located above the conical disc 373 rotates. The water source above the conical disc 373 is subjected to centrifugal force and flies outward along the upper surface of the conical disc 373, so that the heat in the water source is rapidly dissipated into the box 310. At this time, the air inside the box 310 is pumped out to the outside of the box 310 from the air outlet by the operating exhaust fan 360, the air outside is supplemented to the inside of the box 310 from the air inlet to form air flow, and the heat generated by heat dissipation in the splash water stain is quickly taken away by the flowing air. The water source that splashes in a rotating mode increases the contact area of flowing air and the water source, the efficiency that the flowing air carries away heat in the water source can be effectively improved, and the water temperature in the water source is further rapidly cooled.

The water source falling on the conical disc 373 finally splashes above the deflector ring plate 380 under the action of centrifugal force, flows into the first wet curtain 340 and the second wet curtain 350 on both sides along the deflector ring plate 380 which is arranged obliquely, the water source on the first wet curtain 340 and the second wet curtain 350 moves downwards slowly along the wet curtains, and flowing air flowing through the first wet curtain 340 and the second wet curtain 350 has more contact time with the water source on the first wet curtain 340 and the second wet curtain 350, namely, heat in the water source can be discharged more, and the temperature in the circulating water source is reduced. First wet curtain 340 and second wet curtain 350 except can reducing the speed of circulating water source at the inside whereabouts of box 310, also can disperse the circulating water source of wet curtain simultaneously, increase circulating water source and the area of contact of mobile air, cooperate the speed and the efficiency that exhaust fan 360 further promoted the water source cooling. Finally, the water inside the cabinet 310 flows into the water storage tank 430 inside the water storage mechanism 40 through the drain pipe at the bottom for storage.

In some embodiments of the present application, referring to fig. 5, 9 and 10, the water source storage mechanism 40 includes a mounting frame 410, a support ring plate 420, a water storage tank 430, a fixing plate 440, a first down pipe 450, a second down pipe 460, an outer shell 470 and a cooling fin 480. The supporting ring plate 420 is fixedly arranged at the top of the mounting frame 410, and the supporting ring plate 420 and the mounting frame 410 are fixed by welding; and the water storage tank 430 is fixedly installed on the top of the support ring plate 420, and the water storage tank 430 and the support ring plate 420 are fixed by welding. The bottom end of the drain pipe is communicated with the top of the water storage tank 430, the fixing plate 440 is fixedly arranged inside the water storage tank 430, and the fixing plate 440 and the water storage tank 430 are fixedly welded; the top end of the first downcomer 450 penetrates the fixed plate 440, and a second valve 451 is provided outside the first downcomer 450. The top end of the second downcomer 460 is communicated with the bottom of the water storage tank 430, a third valve 461 is arranged outside the second downcomer 460, the bottom end of the second downcomer 460 is communicated with one end of the water inlet pipe 220, two groups of shells 470 are respectively positioned above and below the fixing plate 440, and each group of a plurality of shells 470 are respectively communicated and fixed on the outer wall of the water storage tank 430, and the shells 470 and the water storage tank 430 are fixed by welding; a plurality of refrigeration sheets 480 are correspondingly installed on one side of the outer shell 470 far away from the water storage tank 430. Two liquid level meters 490 are respectively arranged on the outer side of the water storage tank 430, and the two liquid level meters 490 are respectively positioned above and below the fixing plate 440. An air pipe is arranged at the top of the water storage tank 430, and a corresponding valve is arranged outside the air pipe and used for compensating and adjusting the air pressure inside the water storage tank 430.

The water source storage mechanism 40 can carry out three-stage cooling on the circulating water source; that is, the water inside the case 310 is introduced into the water storage tank 430 through the drain pipe at the bottom, and the fixing plate 440 divides the water storage tank 430 into an upper cavity and a lower cavity. The circulating water source discharged from the drain pipe enters the upper cavity inside the water storage tank 430 in advance, the water source in the upper cavity enters the shell 470, the refrigerating surface of the refrigerating piece 480 is attached to the shell 470 for refrigeration, the water source in the upper cavity above the fixing plate 440 is cooled once in a heat conduction mode of the shell 470, the second valve 451 is opened to enable the circulating water source in the upper cavity above the fixing plate 440 to flow into the lower cavity below the fixing plate 440 from the first sewer pipe 450, the refrigerating surface of the refrigerating piece 480 is attached to the shell 470 for refrigeration, the water source in the lower cavity below the fixing plate 440 is cooled secondarily in a heat conduction mode of the shell 470, namely, the three-level cooling of the circulating water source is completed, and the temperature of the circulating water source is further reduced. The water levels in the upper and lower cavities inside the water storage tank 430 can be observed by the liquid level gauge 490, respectively. When the material is recycled, the material still has good heat conduction and cooling effects on the die. The water source after the third-level temperature reduction flows into the water inlet pipe 220 from the second downcomer 460 by opening the third valve 461, and finally is recycled by the water pump 210.

It should be noted that the specific model specifications of the cooling fan 170, the water pump 210, the exhaust fan 360, the motor 374 and the cooling fins 480 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted. The power supply and the principle of the heat dissipation fan 170, the water pump 210, the exhaust fan 360, the motor 374 and the cooling fins 480 will be apparent to those skilled in the art and will not be described in detail herein. The valve can be an electric valve or a pneumatic valve.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An injection mold having a cooling circulation structure, comprising:

the die cooling mechanism (10) comprises an upper die plate (110), a lower die plate (120), an upper die base (130), a lower die base (140) and heat conducting pieces (160), wherein the upper die plate (110) is located above the lower die plate (120), the upper die base (130) is installed at the top of the upper die plate (110), the lower die base (140) is installed at the bottom of the lower die plate (120), cavity layers are respectively arranged inside the upper die base (130) and the lower die base (140), and the two groups of heat conducting pieces (160) are respectively arranged above the upper die base (130) and below the lower die base (140);

the cooling circulation mechanism (20), the cooling circulation mechanism (20) includes a water pump (210), a water inlet pipe (220), a water outlet pipe (230) and a water return pipe (250), one end of the water inlet pipe (220) is communicated with the water inlet port of the water pump (210), one end of the water outlet pipe (230) is communicated with the water outlet port of the water pump (210), the other end of the water outlet pipe (230) is respectively communicated with the upper die base (130) and the lower die base (140), and one end of the water return pipe (250) is respectively communicated with the upper die base (130) and the lower die base (140);

the water source storage mechanism (40), the other end of inlet tube (220) and wet return (250) the other end communicate respectively in water source storage mechanism (40).

2. The injection mold with the cooling circulation structure as claimed in claim 1, wherein one side of the upper mold base (130) and one side of the lower mold base (140) are respectively communicated with a first connection hose (241) and a second connection hose (242), and the other ends of the first connection hose (241) and the second connection hose (242) are respectively communicated with one end of the water outlet pipe (230).

3. The injection mold with the cooling circulation structure as claimed in claim 1, wherein one side of the upper mold base (130) and one side of the lower mold base (140) are respectively communicated with a third connecting hose (261) and a fourth connecting hose (262), and the other ends of the third connecting hose (261) and the fourth connecting hose (262) are respectively communicated with one end of the water return pipe (250).

4. The injection mold with the cooling circulation structure as claimed in claim 1, wherein the heat conducting member (160) comprises two heat conducting plates (161) and heat dissipating fins (162), the two heat conducting plates (161) are respectively and fixedly disposed on the top of the upper mold base (130) and the bottom of the lower mold base (140), and a plurality of heat dissipating fins (162) are respectively and fixedly connected to one side of the heat conducting plates (161) at equal intervals.

5. An injection mold having a cooling cycle structure as claimed in claim 4, wherein said mold cooling mechanism (10) further comprises a heat radiation fan (170), said heat radiation fan (170) being installed at a side of said heat radiation fin (162) away from said heat conductive plate (161).

6. An injection mold with a cooling circulation structure as claimed in claim 1, wherein the upper mold base (130) and the lower mold base (140) are identical in structural specification.

7. An injection mold with a cooling circulation structure as claimed in claim 6, wherein the upper mold base (130) comprises a box body (131) and a box cover (132), the box cover (132) is fixedly arranged on the top of the box body (131).

8. An injection mold with a cooling circulation structure as claimed in claim 7, wherein the box body (131) is fixedly provided with partitions (150) distributed at equal intervals, and the top of the partitions (150) is provided with a plurality of through holes (151).

9. An injection mold having a cooling cycle structure as claimed in claim 1, wherein the first valve (221) and the pressure control valve (222) are respectively provided outside the water inlet pipe (220).

10. An injection mold having a cooling cycle structure as claimed in claim 9, wherein a pressure gauge (270) is installed outside the water inlet pipe (220).