CN116944457A - Intelligent horizontal centrifugal casting grinding ball metal type cleaning and cooling device and method - Google Patents

Abstract

The application relates to an intelligent device and a method for cleaning and cooling a metal mold of a horizontal centrifugal casting grinding ball production line, and belongs to the field of machinery. The application comprises a metal type mechanical conveying roller way, a mechanical roller wheel, a lifting hydraulic cylinder, a lifting cylinder piston rod, a grinding ball metal type, a roller way upright post, a base, a compressed air spray head, a cooling water inlet device, a dust collection and water collection tank, wherein the metal type mechanical conveying roller way is arranged on the base through the roller way upright post; the running edge of the grinding ball metal mold is arranged on a movable roller of the metal mold movable conveying roller way, a dust collection and water collection tank is fixed on a roller way upright post, and a compressed air spray head and a cooling water inlet device are connected with the head part of a piston rod of the lifting hydraulic cylinder. The application has reasonable structural design, is safe and reliable, is beneficial to improving the consistency of the quality of the grinding balls, is convenient to operate, is suitable for the mechanized and intelligent production of the horizontal rotation centrifugal casting grinding balls, and meets the use requirement.

Description

Intelligent horizontal centrifugal casting grinding ball metal type cleaning and cooling device and method

Technical Field

The application relates to a device for cleaning and cooling a metal mold of a cast metal grinding ball, in particular to an intelligent device and a method for cleaning and cooling the metal mold of a horizontal centrifugal casting grinding ball production line, which belong to the field of machinery.

Background

The metal grinding ball is an antiwear consumable widely used in the industries of metallurgy, mine, building materials and the like, and the annual demand is very large; the casting and forming method of the grinding ball comprises metal sand sleeve casting, resin sand casting, iron mold sand-coated casting, lost foam casting, green sand casting and the like.

The grinding ball is cast by adopting horizontal rotation and centrifugation, the production process is simple, the consistency and compactness of the internal structure of the grinding ball can be well solved, and the service life of the grinding ball is prolonged. In the process of producing the grinding balls by the metal mold horizontal rotation centrifugal casting mode, in order to prolong the service life of the metal mold, a layer of molten iron high temperature resistant coating is required to be coated on the surface of the metal mold spherical cavity.

After the grinding balls are solidified and cooled for each centrifugal casting, before molten iron is poured next time, the residues in the last metal casting mold cavity are cleaned, and then a new coating is coated again. And before molten iron pouring, the mould temperature of the metal mould which is continuously increased in the production process is required to be reduced below a certain temperature, so that the cooling speed of molten iron is increased when the metal mould is used for producing grinding balls, the quality of the produced grinding balls can be improved, and the service life of the metal mould can be prolonged.

Therefore, the development of the intelligent and automatic-operation metal mold cavity surface cleaning and cooling device has very important significance for realizing the mechanized and intelligent production of the metal mold horizontal rotation centrifugal casting grinding ball production line and finally realizing the industrial production of the metal mold horizontal rotation centrifugal casting grinding ball.

Disclosure of Invention

The application aims to overcome the defects in the prior art, and provides the metal type cleaning and cooling device and method for the horizontal centrifugal casting grinding ball, which have reasonable structural design, are safe and reliable, are favorable for improving the consistency of the quality of the grinding ball, are convenient to operate, and are suitable for the mechanization and the intellectualization of the horizontal rotary centrifugal casting grinding ball.

The application solves the problems by adopting the following technical scheme: the intelligent horizontal centrifugal casting grinding ball metal mold cleaning and cooling device comprises a metal mold movable conveying roller way, movable rollers, a lifting hydraulic cylinder, a lifting cylinder piston rod, a grinding ball metal mold, a roller way upright post and a base, wherein the metal mold movable conveying roller way is arranged on the base through the roller way upright post; the running edge of the grinding ball metal mold is arranged on a movable roller of the metal mold movable conveying roller way, and the grinding ball metal mold is driven to move along the advancing direction or the reverse direction of the metal mold movable conveying roller way along with the forward rotation or the reverse rotation of the movable roller way, and the grinding ball metal mold movable conveying roller way is characterized in that: the device comprises a roller table upright post, a compressed air spray head, a cooling water inlet device, a dust collection tank and a water collection tank, wherein the dust collection tank and the water collection tank are fixed on the roller table upright post; the compressed air spray head and the cooling water inlet device comprise a pouring channel cavity conical cover, a ball cavity conical cover, a cooling water spray head, a compressed air spray head, a plurality of compressed air vertical pipes, a plurality of cooling water vertical pipes, a supporting disc, an outer ring compressed air annular pipe, an outer ring cooling water annular pipe, an inner ring compressed air annular pipe, an inner ring cooling water annular pipe, a compressed air inlet pipe, a cooling water control valve and a compressed air control valve, wherein the outer ring compressed air annular pipe, the inner ring compressed air annular pipe are connected with the compressed air inlet pipe, the plurality of compressed air vertical pipes are respectively connected with the outer ring compressed air annular pipe and the inner ring compressed air annular pipe according to metal type cavity arrangement, one ball cavity conical cover or one pouring channel cavity conical cover is arranged above each compressed air vertical pipe, and the compressed air spray head is arranged on the upper part of the compressed air vertical pipes; the outer ring cooling water annular pipe and the inner ring cooling water annular pipe are connected with a cooling water inlet pipe, a plurality of cooling water vertical pipes are respectively connected with the outer ring cooling water annular pipe and the inner ring cooling water annular pipe according to metal cavity arrangement, and a cooling water spray head is arranged at the upper part of each cooling water vertical pipe; the outer circle compressed air annular pipe, the outer circle cooling water annular pipe, the inner circle compressed air annular pipe and the inner circle cooling water annular pipe are all fixed on a supporting disc, and the supporting disc is fixed with a lifting cylinder piston rod and can lift along with the lifting of the lifting hydraulic cylinder; the compressed air control valve is connected with the head of the compressed air inlet pipe; the cooling water control valve is connected with a cooling water inlet pipe.

Preferably, the application further comprises an upper dust hood and an upper dust hood air suction pipe, wherein the upper dust hood is fixed above the metal type mechanical conveying roller way, and the upper dust hood air suction pipe is connected with the upper dust hood.

Preferably, the application further comprises a temperature sensor which is fixed below the work station of the metal mold of the grinding ball.

Preferably, the compressed air spray head and the cooling water inlet device are fixed on the head part of a lifting cylinder piston rod of the lifting hydraulic cylinder through nuts.

The application also provides an intelligent working method of the metal type cleaning and cooling device for the horizontal centrifugal casting grinding ball, which is characterized in that: when the grinding ball metal mold after casting, solidifying and discharging the grinding ball casting is conveyed into a cleaning and cooling position of the device through the metal mold mechanical conveying roller way, stopping;

the lifting hydraulic cylinder of the device is lifted to synchronously drive the compressed air spray head and the cooling water inlet device to be lifted to a high position, the compressed air inlet pipe is opened, the inlet pressure of compressed air is regulated to a high pressure inlet mode (0.7-0.8 MPa) through the compressed air control valve, the high pressure compressed air is sprayed to the grinding ball cavity and the runner cavity through the spray nozzle, under the impact of the high pressure compressed air, the residual coating adhered to the cavity is forcedly stripped to the cavity, the cleaning time is up, and the high pressure compressed air mode is closed, so that the cavity cleaning operation of the device is completed; before the cleaning process is finished, the temperature of the metal mold can be detected by a temperature sensor, and cooling parameters (cooling water cooling time, cooling water quantity and the like) are calculated intelligently;

the lifting hydraulic cylinder of the device descends to synchronously drive the compressed air spray head and the cooling water inlet device to descend to the middle position and then stop, the compressed air control valve is used for adjusting the air inlet pressure of the compressed air to a low-pressure inlet mode (0.35-0.45 MPa), meanwhile, the cooling water control valve is opened according to the cooling water required flow rate obtained by intelligent calculation, under the action of the compressed air, the cooling water is sprayed and atomized, the atomized cooling water is sprayed to the surface of the metal mold cavity under the guidance of the conical cover, the metal mold cavity is cooled, when the cooling time reaches a few seconds before the cooling time calculated by the device intelligently, the temperature sensor can again detect the temperature of the metal mold, when the temperature of the metal mold is still higher than the preset metal mold temperature, the device can repeatedly calculate the cooling water quantity and the cooling time in a repeated mode, correct the cooling water quantity and the cooling time in time, keep cooling operation on the metal mold, and repeatedly circulate until the cooling operation of the metal mold reaches the set mold temperature, the cooling water control valve and the compressed air control valve are closed, and the cooling operation of the metal mold cavity is ended;

the lifting hydraulic cylinder of the device descends to synchronously drive the compressed air spray head and the cooling water inlet device to a low position, the motorized roller way acts to send out the metal mold after the cleaning and cooling operation is finished out of the device, and finally the cleaning and cooling operation of the metal mold is finished once;

the cleaning and cooling operation of the metal mold can be sequentially circulated, and the mechanical, automatic and intelligent operation of cleaning and cooling of the metal mold of the horizontal rotation centrifugal casting grinding ball production line can be realized.

Compared with the prior art, the application has the following advantages and effects: 1) The device can be used for cleaning and cooling a metal mold cavity on a horizontal rotation centrifugal casting grinding ball production line; 2) Cleaning and cooling of the metal grinding ball cavity are integrated into one station, so that the production process flow of the cast grinding ball is greatly simplified; 3) The intelligent operation of cleaning and cooling the metal mold cavity of the grinding ball in the horizontal rotation centrifugal casting grinding ball production line can be realized; 4) Is beneficial to realizing the mechanized, intelligent and industrial production of the horizontal rotation centrifugal casting grinding ball production line; 5) The consistency of the metal mold temperature during casting molten iron in the horizontal rotation centrifugal casting production process is realized, the consistency of the water cooling speed of the molten iron in the grinding ball casting production process is ensured, and the consistency of the quality of the grinding balls is improved.

Drawings

FIG. 1 is a schematic view showing the front view of the upper and lower metal mold of the grinding ball production line according to the embodiment of the application.

FIG. 2 is a schematic diagram showing the top view of the upper and lower metal molds of the ball mill production line according to the embodiment of the application.

FIG. 3 is a flow chart of a metal mold cleaning and cooling process in a ball mill production line in accordance with an embodiment of the application

Fig. 4 is a schematic front view of a metal-type cleaning and cooling device for a grinding ball production line according to an embodiment of the present application.

Fig. 5 is a schematic top view of a metal mold cleaning and cooling device of a grinding ball production line according to an embodiment of the application.

Fig. 6 is a schematic side view of a metal-type cleaning and cooling device for a grinding ball production line in accordance with an embodiment of the present application.

FIG. 7 is a schematic diagram showing a front view of a compressed air nozzle and a cooling water inlet device according to an embodiment of the present application.

FIG. 8 is a schematic top view of a compressed air nozzle and a cooling water inlet device according to an embodiment of the present application.

FIG. 9 is a schematic illustration of a cast ball mold entering a cleaning and cooling apparatus during cleaning and cooling in accordance with an embodiment of the present application.

FIG. 10 is a schematic view of a cleaning operation with a cleaning cooling pan raised to a maximum during cleaning and cooling in accordance with an embodiment of the present application.

FIG. 11 is a schematic illustration of a cleaning cooling pan lowered to a second highest level for a cooling operation during cleaning and cooling in accordance with an embodiment of the present application.

FIG. 12 is a schematic view of a cleaning cooling pan bottoming out for cooling during cleaning and cooling in accordance with an embodiment of the present application.

FIG. 13 is a schematic view of a cast ball metal type removal purge cooling apparatus during purging and cooling in accordance with an embodiment of the present application.

In the figure: a metal type mechanical conveying roller way 1, an upper dust hood 2, an upper dust hood air suction pipe 3, a mechanical roller 4, a compressed air nozzle and cooling water inlet device 5, a dust collection and water collection tank 6, a lifting hydraulic cylinder 7, a lifting cylinder piston rod 8, a grinding ball metal type 9, a roller way upright post 10, a temperature measurement sensor 11 and a base 12;

compressed air shower nozzle and cooling water inlet device 5: the pouring gate cavity conical cover 5-1, the ball cavity conical cover 5-2, the cooling water spray head 5-3, the compressed air spray head 5-4, the compressed air vertical pipe 5-5, the cooling water vertical pipe 5-6, the supporting disc 5-7, the outer ring compressed air annular pipe 5-8, the outer ring cooling water annular pipe 5-9, the inner ring compressed air annular pipe 5-10, the inner ring cooling water annular pipe 5-11, the compressed air inlet pipe 5-12, the cooling water inlet pipe 5-13, the cooling water control valve 5-14 and the compressed air control valve 5-15;

the casting mold comprises, by weight, an upper metal mold 1-1, a lower metal mold 1-2, a run edge 1-3, a grinding ball cavity 1-4, a molten iron injection cavity 1-5, a long positioning pin hole 1-6, a positioning pin 1-7 and an inner gate 1-8;

the grinding ball metal mold enters a cleaning and cooling device L1, a cleaning process L2 of a residual coating film of a grinding ball metal mold cavity, the grinding ball metal mold cavity is cooled L3, and the grinding ball metal mold is moved out of the cleaning and cooling device L4.

Detailed Description

The present application will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present application and not limited to the following examples.

Examples

Referring to fig. 1 to 13, the intelligent horizontal centrifugal casting grinding ball metal mold cleaning and cooling device in the embodiment comprises a metal mold motor-driven conveying roller way 1, an upper dust hood 2, an upper dust hood air suction pipe 3, a motor-driven roller wheel 4, a compressed air spray head, a cooling water inlet device 5, a dust collection and water collection tank 6, a lifting hydraulic cylinder 7, a lifting cylinder piston rod 8, a grinding ball metal mold 9, a roller way upright post 10, a temperature measurement sensor 11 and a base 12.

The intelligent metal mold cleaning and cooling device for the horizontal rotation centrifugal casting grinding balls in the embodiment has the structural form as shown in fig. 4-6: the grinding ball metal type feeding and discharging device adopts a motorized roller way conveying mode, namely: the running edge of the grinding ball metal mold 9 is arranged on the movable roller 4 of the metal mold movable conveying roller way 1, and the grinding ball metal mold 9 is driven to move along the advancing direction or the reverse direction of the metal mold movable conveying roller way 1 along with the forward rotation or the reverse rotation of the movable roller 4.

The metal type motorized rollgang 1 in the embodiment is fixedly mounted on a base 12 through a roller column 10.

The upper dust hood 2 in the embodiment is fixedly arranged above the metal type movable conveying roller way 1; dust generated in the operation process of the device and water vapor generated in the cooling process can be collected and enter corresponding environment-friendly treatment devices for treatment.

The dust collection and water collection tank 6 in the embodiment is fixedly arranged on the roller column 10; the dust falling during the running process of the device and cooling water sprayed during the cooling process can be collected and discharged into corresponding treatment equipment for treatment.

The temperature sensor 11 in this embodiment is fixed below the entry of the grinding ball metal mold 9 into the working station.

The compressed air spray head and the cooling water inlet device 5 in the embodiment are fixedly arranged on the head part of a piston rod of the lifting hydraulic cylinder 7 through nuts.

The bottom of the lifting hydraulic cylinder 7 in the embodiment is arranged on the base 12; the lifting hydraulic cylinder can lift or lower the compressed air spray head and the cooling water inlet device 5 to the height position required by the operation of the device according to the operation procedure requirement of the device.

In this embodiment, as shown in fig. 7-8, the device 5 includes a runner chamber conical cover 5-1, a ball chamber conical cover 5-2, a cooling water spray head 5-3, a compressed air spray head 5-4, a compressed air standpipe 5-5, a cooling water standpipe 5-6, a supporting disk 5-7, an outer ring compressed air annular pipe 5-8, an outer ring cooling water annular pipe 5-9, an inner ring compressed air annular pipe 5-10, an inner ring cooling water annular pipe 5-11, a compressed air intake pipe 5-12, a cooling water intake pipe 5-13, a cooling water control valve 5-14 and a compressed air control valve 5-15.

The outer circle compressed air annular pipe 5-8 and the inner circle compressed air annular pipe 5-10 are connected with the compressed air inlet pipe 5-12; the compressed air vertical pipes 5-5 are respectively connected with the outer circle compressed air annular pipe 5-8 and the inner circle compressed air annular pipe 5-10 according to the arrangement of the metal type cavities; a spherical cavity conical cover 5-2 or a pouring channel conical cover 5-1 is arranged above each compressed air vertical pipe 5-5, compressed air and cooling water are guided through the spherical cavity conical covers 5-2 and the pouring channel conical covers 5-1, so that the compressed air and atomized cooling water can act on the positions of the required metal mold cavities to the maximum extent, the sufficient heat exchange between the mold cavities at the positions and the atomized cooling water is ensured, and a good cooling effect is achieved on the metal mold cavities.

The outer ring cooling water annular pipe 5-9 and the inner ring cooling water annular pipe 5-11 are connected with the cooling water inlet pipe 5-13; the cooling water vertical pipes 5-6 are respectively connected with the outer ring cooling water annular pipe 5-9 and the inner ring cooling water annular pipe 5-11 according to the arrangement of the metal type cavity. The appropriately matched compressed air control valve 5-15 is connected with the head of the compressed air inlet pipe 5-12, and the air inlet pressure of the compressed air can be automatically adjusted through the compressed air control valve 5-15 according to the working procedure requirement of the device; the cooling water control valve 5-14 is connected with the cooling water inlet pipe 5-13, and the flow of the cooling water can be automatically adjusted through the cooling water control valve 5-14 according to the working procedure requirement of the device.

The outer ring compressed air annular pipe 5-8, the inner ring compressed air annular pipe 5-10, the outer ring cooling water annular pipe 5-9, the inner ring cooling water annular pipe 5-11 and the like are fixedly arranged on the supporting disc 5-7, and the supporting disc 5-7 is fixedly connected with the lifting cylinder piston rod 8 and can lift along with the lifting of the lifting hydraulic cylinder 7.

In this embodiment, the compressed air nozzle and the cooling water inlet device 5 have three height positions in the running process, namely: three height positions of low position, middle position and high position; the lifting hydraulic cylinder 7 descends to a low position, and at the high position, the device mainly performs the operation of the metal type compressed air inlet and outlet spray head and the cooling water inlet device 5; the lifting hydraulic cylinder 7 is lifted to a high position, and the device mainly cleans the residual coating of the metal mold cavity at the high position; the lifting hydraulic cylinder 7 is lifted to a middle position, and at the height position, the device performs spray cooling on the metal mold cavity surface.

The lifting hydraulic cylinder 7 is adopted for lifting the device of the embodiment, so that the height of the device in the high position and the middle position can be conveniently adjusted according to the metal types (the thickness of the metal types is different) of different grinding balls; when the device is used for cleaning the residual coating on the surface of the metal mold cavity, the pressure of compressed air is controlled to be 0.7-0.8MPa in order to clean the residual coating well through compressed air jet impact; when the surface of the metal mold is atomized and cooled by cooling water, the service life of the metal mold is prolonged, and the pressure of compressed air is controlled to be 0.35-0.45MPa in order to well atomize the cooling water and alleviate the chilling degree of the cooling water to the metal mold. The temperature of the die cavity of the metal mold is generally controlled to be 150-200 ℃, when the metal mold enters the working running position of the cleaning and cooling device, the temperature sensor 11 of the device detects the temperature of the surface of the metal mold, and when the temperature is higher than the temperature, the device needs to cool the metal mold cavity; the cooling time and the cooling water quantity of the surface of the metal mold cavity can be automatically calculated through a metal mold heat capacity calculation formula (the calculation formula can be obtained by combining factors such as metal mold weight, cooling rate, practical application test and the like) in a PLC (programmable logic controller) arranged in the device, the cooling time is intelligently determined, the cooling water quantity is adjusted, and the temperature of the metal mold cavity cooled by the device is ensured to be within a set temperature range.

The technological process of the intelligent metal mold cleaning and cooling device for the horizontal rotation centrifugal casting grinding ball in the embodiment, see fig. 3, mainly comprises the following steps: the grinding ball metal mold enters a cleaning and cooling device L1, a cleaning procedure L2 of residual coating films of the grinding ball metal mold cavity, a grinding ball metal mold cavity cooling L3 and a grinding ball metal mold removing and cleaning and cooling device L4.

The working operation process and method of the intelligent cleaning and cooling device for the metal mold of the horizontal centrifugal casting grinding ball comprise the following steps: see fig. 9-13: when the grinding ball metal mold after casting, solidifying and discharging the grinding ball casting is conveyed to a cleaning and cooling position of the device through the motorized roller way, stopping; the lifting hydraulic cylinder of the device is lifted to synchronously drive the compressed air spray head and the cooling water inlet device to be lifted to a high position, the compressed air inlet pipe 5-12 is opened, the inlet pressure of compressed air is regulated to a high pressure inlet mode (0.7-0.8 MPa) through the compressed air control valve 5-15, the high pressure compressed air is sprayed to the grinding ball cavity and the runner cavity through the spray nozzle, under the impact of the high pressure compressed air, the residual coating adhered to the cavity is forcedly stripped to the cavity, the cleaning time is up, and the high pressure compressed air mode is closed, so that the cavity cleaning operation of the device is completed; before the cleaning process is finished, the temperature of the metal mold can be detected by a temperature sensor, and cooling parameters (cooling water cooling time, cooling water quantity and the like) are calculated intelligently; the lifting hydraulic cylinder of the device descends to synchronously drive the compressed air spray head and the cooling water inlet device to descend to the middle position and then stop, the compressed air control valve 5-15 regulates the air inlet pressure of the compressed air to a low-pressure inlet mode (0.35-0.45 MPa), meanwhile, the cooling water control valve is opened according to the cooling water required flow obtained by intelligent calculation, under the action of the compressed air, the cooling water is sprayed and atomized, the atomized cooling water is sprayed to the surface of the metal mold cavity under the guidance of the conical cover, the metal mold cavity is cooled, when the cooling time reaches a few seconds before the cooling time intelligently calculated by the device, the temperature sensor detects the metal mold temperature again, when the metal mold temperature is still higher than the preset metal mold temperature, the device can repeatedly calculate the cooling water quantity and the cooling time again in the aforesaid intelligent calculation mode, correct the cooling water quantity and the cooling time in time, keep cooling operation on the metal mold, and repeatedly circulate until the metal mold cooling reaches the set mold temperature, the cooling water control valve and the compressed air control valve are closed, and the cooling operation of the metal mold cavity is finished; the lifting hydraulic cylinder of the device descends to synchronously drive the compressed air spray head and the cooling water inlet device to a low position, the motorized roller way acts, the metal mold after the cleaning and cooling operation is finished is sent out of the device, and finally the cleaning and cooling operation of the metal mold is finished once. The cleaning and cooling operation of the metal mold can be sequentially circulated, and the mechanical, automatic and intelligent operation of cleaning and cooling of the metal mold of the horizontal rotation centrifugal casting grinding ball production line can be realized.

The working principle of the intelligent metal mold cleaning and cooling device for the horizontal rotation centrifugal casting grinding ball in the embodiment is as follows: the metal mold for casting grinding balls by horizontal rotation and centrifugation is shown in the accompanying drawings 1-2, wherein the metal mold comprises an upper metal mold 1-1, a lower metal mold 1-2, a running edge 1-3, a grinding ball cavity 1-4, a molten iron injection cavity 1-5, a long positioning pin hole 1-6, a positioning pin 1-7 and an inner gate 1-8, namely: a plurality of grinding ball cavities 1-4 are arranged on one circumference of a metal mold plane, after the upper metal mold 1-1 and the lower metal mold 1-2 are combined together, molten iron is poured into the horizontally rotating metal mold, and the grinding ball castings are finally obtained and sequentially circulated; in order to prevent the molten iron from being stuck and fused together with the metal mold to damage the metal mold, a heat-resistant coating film layer is often coated on the metal mold cavity before the metal mold is closed, so that the molten iron does not directly contact the metal mold cavity when the molten iron enters the mold cavity, the surface of the metal mold cavity is protected, and the service life of the metal mold is prolonged. When the grinding ball casting is separated from the metal mold, the surface of the metal mold cavity often has paint film residues, if the paint film residues are not cleaned in time, the paint film residues can fall off from the mold cavity when the next molten iron casting is performed, enter the molten iron and exist in the finally formed grinding ball casting to form inclusions, and the service life of the grinding ball is influenced.

In addition, in the process of producing the grinding balls, the metal mold is repeatedly poured with molten iron, and the temperature of the metal mold is continuously increased. The die temperature of the metal mold is too high, and one of the die temperatures is: the cooling and solidifying time of molten iron in the metal mold is prolonged, the quality of the grinding ball (coarse grains) is affected, and two are: the service life of the metal mold is shortened (the higher the temperature is, the lower the thermal strength of the metal mold material is, and the worse the thermal fatigue performance is); therefore, in the production of grinding balls using a metal mold, the metal mold should be cooled down; in the process of producing grinding balls by metal mold casting, a metal mold cavity needs to be cleaned before each metal mold is molded; when the temperature of the metal mold is higher than a certain temperature, the metal mold is subjected to cooling treatment.

The working principle of the metal mold cavity cleaning and cooling device of the application is as follows: the metal mold entering the device firstly adopts strong air flow generated by a high-pressure compressed air nozzle to strip and blow away the residual coating in the metal mold grinding ball cavity 1-4; and then the compressed air flow of the nozzle is utilized to atomize and spray cooling water onto the metal mold cavity, and the metal mold cooling mode adopting the water mist flow can rapidly cool the metal mold without causing the reduction of the service life of the metal mold due to chilling of the metal mold. The temperature sensor 11 detects the mold temperature of each metal mold entering the device, and intelligently determines the cooling time of the metal mold, whether the metal mold is air cooled or water cooled, the control of the water quantity of cooling water, and the like. And finally, the metal mold after being cleaned and cooled (within the temperature range) is sent out of the device to enter the next working procedure.

According to the technical characteristics and technological process of the horizontal rotary centrifugal casting grinding ball, the application develops a device and a method for cleaning and cooling a metal cavity suitable for mechanical and intelligent horizontal rotary centrifugal casting grinding ball production, combines an intelligent operation control mode, is matched with a horizontal rotary centrifugal casting grinding ball production line, and realizes intelligent production of casting grinding balls.

Firstly, a high-pressure spray head device blows high-pressure compressed air into each grinding ball cavity in a metal mold to strip and remove residual coating in the grinding ball cavity and the metal cavity, then cooling water is introduced above the spray head, the cooling water is atomized under the action of the compressed air and sprayed on the surface of the grinding ball cavity of the metal mold and the parting surface of the whole metal mold, the atomized cooling water is gasified in the metal mold cavity at high temperature, and meanwhile, a large amount of heat of the metal mold is taken away by the compressed air at normal temperature, so that the heat in the metal mold can be rapidly absorbed, and the metal mold is cooled down. The temperature sensor on the device can detect the temperature of the metal mold, and the flow of cooling water, the flow of compressed air and the cooling time are adjusted by combining heat capacity simulation calculation, so that the intelligent control of the whole cooling process of the metal mold is realized.

From the above description, those skilled in the art will be able to practice.

In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present application. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the application as defined in the accompanying claims.

Claims (6)

1. An intelligent horizontal centrifugal casting grinding ball metal mold cleaning and cooling device comprises a metal mold mechanical conveying roller way (1), mechanical rollers (4), a lifting hydraulic cylinder (7), a lifting cylinder piston rod (8), a grinding ball metal mold (9), a roller way upright post (10) and a base (12), wherein the metal mold mechanical conveying roller way (1) is arranged on the base (12) through the roller way upright post (10), and the lifting hydraulic cylinder (7) is arranged on the base (12); running edges of the grinding ball metal mold (9) are arranged on a movable roller (4) of the metal mold movable conveying roller way (1), and the grinding ball metal mold (9) is driven to move along the advancing direction or the reversing direction of the metal mold movable conveying roller way (1) along with the forward rotation or the reversing rotation of the movable roller (4), and the grinding ball metal mold conveying roller way is characterized in that: the device also comprises a compressed air spray head, a cooling water inlet device (5) and a dust collection and water collection tank (6), wherein the dust collection and water collection tank (6) is fixed on a roller column (10), the compressed air spray head and the cooling water inlet device (5) are connected with the head of a lifting cylinder piston rod (8) of a lifting hydraulic cylinder (7), and the compressed air spray head and the cooling water inlet device (5) can be lifted or lowered to the height position required by the operation of the device; the compressed air spray head and the cooling water inlet device (5) comprise a pouring channel cavity conical cover (5-1), a ball cavity conical cover (5-2), a cooling water spray head (5-3), a compressed air spray head (5-4), a plurality of compressed air vertical pipes (5-5), a plurality of cooling water vertical pipes (5-6), a supporting disc (5-7), an outer ring compressed air annular pipe (5-8), an outer ring cooling water annular pipe (5-9), an inner ring compressed air annular pipe (5-10), an inner ring cooling water annular pipe (5-11), a compressed air inlet pipe (5-12), a cooling water inlet pipe (5-13), a cooling water control valve (5-14) and a compressed air control valve (5-15), the outer ring compressed air annular pipe (5-8), the inner ring compressed air annular pipe (5-10) are connected with the compressed air inlet pipe (5-12) respectively according to a metal type cavity arrangement, the plurality of compressed air vertical pipes (5-5) are connected with the outer ring compressed air annular pipe (5-8) and the inner ring compressed air annular pipe (5-10), each pouring channel conical cover (5-5) is provided with one ball cavity (5-2) or one spherical cavity (5-2), the upper part of the compressed air vertical pipe (5-5) is provided with a compressed air spray head (5-4); the outer ring cooling water annular pipe (5-9) and the inner ring cooling water annular pipe (5-11) are connected with a cooling water inlet pipe (5-13), a plurality of cooling water vertical pipes (5-6) are respectively connected with the outer ring cooling water annular pipe (5-9) and the inner ring cooling water annular pipe (5-11) according to the arrangement of metal type cavities, and cooling water spray heads (5-3) are arranged on the upper parts of the cooling water vertical pipes (5-6); the outer circle compressed air annular pipe (5-8), the outer circle cooling water annular pipe (5-9), the inner circle compressed air annular pipe (5-10) and the inner circle cooling water annular pipe (5-11) are all fixed on a supporting disc (5-7), and the supporting disc (5-7) is fixed with a lifting cylinder piston rod (8) and can lift along with the lifting of the lifting hydraulic cylinder (7); the compressed air control valve (5-15) is connected with the head of the compressed air inlet pipe (5-12); the cooling water control valve (5-14) is connected with the cooling water inlet pipe (5-13).

2. The intelligent horizontal centrifugal casting grinding ball metal type cleaning and cooling device according to claim 1, wherein: the dust removal device is characterized by further comprising an upper dust removal cover (2) and an upper dust removal cover air suction pipe (3), wherein the upper dust removal cover (2) is fixed above the metal type mechanical conveying roller way (1), and the upper dust removal cover air suction pipe (3) is connected with the upper dust removal cover (2).

3. The intelligent horizontal centrifugal casting grinding ball metal type cleaning and cooling device according to claim 1, wherein: the grinding ball metal mold grinding machine also comprises a temperature measuring sensor (11), wherein the temperature measuring sensor (11) is fixed below the working station where the grinding ball metal mold (9) enters.

4. The intelligent horizontal centrifugal casting grinding ball metal type cleaning and cooling device according to claim 1, wherein: the compressed air spray head and the cooling water inlet device (5) are fixed at the head part of a lifting cylinder piston rod (8) of the lifting hydraulic cylinder (7) through nuts.

5. The intelligent horizontal centrifugal casting grinding ball metal type cleaning and cooling device according to claim 1, wherein: the compressed air control valve (5-15) regulates the inlet pressure of compressed air to a high pressure inlet mode: 0.7-0.8MPa; the compressed air control valve (5-15) regulates the inlet pressure of the compressed air to a low pressure inlet mode: 0.35-0.45MPa.

6. An intelligent working method of a metal mold cleaning and cooling device for horizontal centrifugal casting grinding balls, which adopts the intelligent metal mold cleaning and cooling device for horizontal centrifugal casting grinding balls as set forth in any one of claims 1-5, and is characterized in that:

when the grinding ball metal mold (9) after casting, solidifying and discharging the grinding ball casting is conveyed into the cleaning and cooling position of the device of the application through the metal mold mechanical conveying roller way (1), the grinding ball metal mold is stopped

The lifting hydraulic cylinder (7) of the device is lifted to synchronously drive the compressed air spray head and the cooling water inlet device (5) to be lifted to a high-position, the compressed air inlet pipe (5-12) is opened, and the inlet pressure of the compressed air is regulated to a high-pressure inlet mode through the compressed air control valve (5-15): the method comprises the steps of spraying high-pressure compressed air to a grinding ball cavity and a runner cavity through a nozzle under the pressure of 0.7-0.8MPa, forcibly stripping a residual coating adhered to the cavity into the cavity under the impact of the high-pressure compressed air, and closing a high-pressure compressed air mode to finish the cavity cleaning operation of the device; before the cleaning process is finished, the temperature of the metal mold can be detected by a temperature sensor (11), and cooling parameters are intelligently calculated;

the lifting hydraulic cylinder (7) of the device descends, the compressed air spray head and the cooling water inlet device (5) are synchronously driven to descend to the middle position and then stop, and the air inlet pressure of the compressed air is regulated to a low-pressure inlet mode through the compressed air control valve (5-15): opening a cooling water control valve according to the cooling water required flow rate obtained by intelligent calculation at 0.35-0.45MPa, spraying and atomizing the cooling water under the action of compressed air, spraying the atomized cooling water onto the surface of a metal mold cavity under the guidance of a conical cover, cooling the metal mold cavity, closing the cooling water control valve and the compressed air control valve (5-15) after the metal mold cooling reaches the set mold temperature when the cooling time reaches a few seconds before the cooling time calculated by the intelligent calculation of the device, detecting the temperature of the metal mold again, and repeating the intelligent calculation mode to recalculate the cooling water quantity and the cooling time when the metal mold temperature is still higher than the preset metal mold temperature, correcting the cooling water quantity and the cooling time in time, keeping the cooling operation of the metal mold, and repeating the circulation until the cooling operation of the metal mold is finished after the cooling operation of the metal mold reaches the set mold temperature;

the lifting hydraulic cylinder of the device descends to synchronously drive the compressed air spray head and the cooling water inlet device (5) to a low position, the motorized roller way acts, the metal mold after the cleaning and cooling operation is finished is sent out of the device, and finally the cleaning and cooling operation of the metal mold is finished once;

the cleaning and cooling operation of the metal mold can be sequentially circulated, and the mechanical, automatic and intelligent operation of cleaning and cooling of the metal mold of the horizontal rotation centrifugal casting grinding ball production line can be realized.