CN111360197A - Automatic production equipment for lost foam casting foam model - Google Patents
Automatic production equipment for lost foam casting foam model Download PDFInfo
- Publication number
- CN111360197A CN111360197A CN202010243903.8A CN202010243903A CN111360197A CN 111360197 A CN111360197 A CN 111360197A CN 202010243903 A CN202010243903 A CN 202010243903A CN 111360197 A CN111360197 A CN 111360197A
- Authority
- CN
- China
- Prior art keywords
- valve
- mould
- port
- mold
- feeding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an automatic production device for lost foam casting foam models, which comprises a feeding system, a heating system, a cooling system and a mold taking system, wherein the feeding system comprises a pressure-bearing material tank, a material sucking fan and an air suction port, automatic pulse feeding is adopted in the feeding system, beads in the foam models are fully expanded and fused due to the fact that the heating system adopts a two-section type heating process, the interval among the beads is small, steam condensate water is hidden everywhere, and therefore the foam models which are uniform in foaming, low in water content, high in strength, smooth in surface and light in density can be obtained.
Description
Technical Field
The invention relates to a technology and equipment for realizing automatic production, improving production environment and reducing casting defects of lost foam casting foam models, in particular to a technology and equipment for greatly reducing the water content in the models and adopting a central integrated vacuum unit for negative pressure cooling in the production process of vertical forming machines (vertical die sinking) or horizontal forming machines (horizontal die sinking) for lost foam casting foam model production, thereby greatly reducing energy consumption; and a special truss manipulator is adopted to automatically take the foam model to realize the automatic production technology, in particular to automatic production equipment for lost foam casting foam models.
Background
The method is characterized in that a lost foam casting LFC (lost foam casting), also called dry sand full-mold negative pressure casting and called EPC abroad, is one of the most advanced casting processes in the world at present, is known as a revolutionary casting history, is called green casting in 21 st century at home and abroad, the quality of a lost foam casting product is critical to ensure that the quality of the lost foam casting product is ensured, once the foam model is produced, the foam model brings unexpected scrap rate, and it can be said that if an inferior foam model is manufactured, the inferior foam model is substantially equal to an already cast inferior foam, the specific research is mainly carried out on lost foam casting foam model forming equipment, the lost foam casting process has the greatest advantages that the mold does not need to be drawn, casting products with very complex structures can be produced, high-temperature molten iron (or aluminum alloy) is injected into a mold cavity to automatically gasify the foam model, the foam model occupies a position of the foam model and is solidified to obtain the required casting products after the casting, but the lost foam model is produced by adopting a manual pressurization and pressurization process, namely, the mode of manually pressurizing, the mode of manual pressurization, namely, the mode of manual pressurization, the mode of filling the compressed air, the compressed air is adopted, the mode of the model, the model is adopted, the mode of manual mode of filling the model, the mode of blowing, the model is adopted, the mode of blowing the model, the model is adopted, the mode of manual mode of the mode of blowing the model, the model is adopted, the mode of manual mode of blowing the model, the model is adopted, the mode of blowing the model is not only is adopted, the mode of blowing the model, the mode of blowing is not only is not used for manual mode of blowing the model, the mode of blowing is adopted, the mode of blowing the model of blowing is very complicated, the model, the mode of blowing is very complicated mode.
Before the beads are injected into the die cavity and are not molded, the beads are in a loose state, the pressure of the die cavity is controlled by a pressure gauge in a steam heating mode, the uneven fluctuation range of heating in the die cavity is large, finally, the inner part of the white die is poorly fused, gaps among the spherical beads are large, and a large amount of steam condensate water is remained in the gaps among the beads, so that the water content of the white die is high. And the structure of the white mold is complex, and the number of loose pieces in the mold is large, so that 1-2 people must be equipped for each device to manually take and place the loose pieces and take the molded foam model after molding, which wastes a large amount of manual labor force, and the safety is not high because the live pieces and the foam model need to be manually taken into the device, and production accidents are often caused by misoperation of workers. In order to cool and shape the formed foam model in the die cavity, the existing cooling technology is 'water-overflowing' cooling, namely, the whole die is cooled, so that the repeated heating and cooling of the die cause huge waste of energy. And the water overflowing type cooling mode ensures that a large amount of hot water is sprayed to the periphery of the equipment when the mould is opened, the production environment is extremely severe, and workers must wear rain boots of the raincoat to go to work.
Disclosure of Invention
Aiming at the problems, the invention provides automatic production equipment for lost foam casting foam models.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an automatic production device for lost foam casting foam models, which comprises a feeding system, a heating system, a cooling system and a mold taking system, wherein the feeding system comprises a pressure-bearing material tank, a material suction fan and an air suction port, the material suction fan and the air suction port are connected with the material tank through a feeding pipeline, a material supplementing port is connected above the material tank, one end of the material supplementing port is also connected with a material bin, the material tank is connected with the material bin through the material supplementing port, the material tank, the material supplementing port and the material bin are connected through a material supplementing pipeline, at least 3 material outlets are arranged below the material tank and correspondingly connected with a mold, the material outlets are connected with the mold through a material outlet pipeline, a material inlet is arranged on the mold, an automatic material feeding gun is arranged at the material inlet and connected with the material outlet, a material pressurizing port and a material discharging port are also arranged above the material tank, the charging bucket pressurization port is connected with a compressed air pipe.
According to the technical scheme, the manual feeding mode in the prior art is changed, the pulse automatic feeding is adopted, the feeding efficiency is improved, and the fact that the mold is full of beads can be guaranteed.
The invention further provides that: the heating system is connected with the mould, the mould comprises a moving mould and a fixing mould, the heating system comprises a steam main pipe, a main steam valve and a blowdown main pipe, the steam main pipe is connected with the main steam valve through a pipeline, the main steam valve is connected with a temperature control proportional valve in parallel, the temperature control proportional valve is also connected with a temperature control proportional valve protection valve, the main steam valve is respectively connected with the moving die and the fixed die, a mould moving steam valve is arranged between the main steam valve and the mould moving, a mould fixing steam valve is arranged between the main steam valve and the mould fixing, the fixed mould is connected with the main sewage discharge pipe, the movable mould is connected with the main sewage discharge pipe, a fixed mould sewage discharge valve is arranged between the fixed mould and the main sewage discharge pipe, a mould moving blow-down valve is arranged between the mould moving and the blow-down header pipe, and a blow-down header valve is arranged at one end of the blow-down header pipe.
The heating system adopted in the technical scheme adopts a two-section type heating process to fully expand the beads at low temperature and quickly fuse the beads at high temperature) and combines the automatic detection and automatic correction functions of a computer system, so that the beads in the foam model are fully expanded and fused, the interval between the beads is small, the steam condensate water is hidden everywhere, and the foam model with uniform foaming, low water content, high strength, smooth surface and light density can be obtained.
The invention further provides that: the cooling system comprises a vacuum negative pressure system connected with the sewage main pipe.
The vacuum negative pressure system is arranged in the technical scheme and used for realizing vacuum cooling and demolding at cooling and high temperature. The purpose of cooling is to set the foam. The traditional cooling mode is called as 'water-flooding' cooling, the thermoplastic foam plastic just formed in the die is a poor heat conductor, the phenomenon that the surface layer is cooled, solidified and shaped and the temperature of the core part is high often occurs during cooling, and a large amount of heat of the core part enables the foam body to continue to expand, so that the die is deformed or cracked. However, if the cooling time is too long, the white mold in the mold is always soaked in water, the pattern surface will collapse, and at the same time, the micro-gaps on the foam surface are closed, so that the water is locked in the interior, and the water content of the foam is increased.
The nature of the negative pressure cooling is directional cooling. The cooling nozzle in the mold sprays water to the part needing cooling directionally, and the water mist is gasified to take away heat, which is the same as the principle that alcohol is rubbed on the skin, and the heat is taken away by the gasification of the alcohol, so that the skin feels cool. Then the vaporization point of water is 100c at normal atmospheric pressure, and the pressure in the mold cavity is reduced in order to allow the water to vaporize in the environment of 70-80 c in the mold cavity. In addition, the negative pressure can also quickly take away the heat in the micro-gap before the white mould is shaped. There is an additional benefit in that high temperature demolding can be achieved without much temperature drop in places that do not require cooling, such as the outer frame of the mold and the equipment template.
The invention further provides that: the mould taking system is fixed on the moving mould and comprises an equipment body, a sucker guide rail and a sucker, wherein a second supporting table is formed on the equipment body and is located in the middle of the equipment body, the sucker guide rail is arranged below the second supporting table, the sucker is arranged on the sucker guide rail, and one end of the sucker is connected with a propelling cylinder.
The invention further provides that: the sucking disc includes the sucking disc body, sets up universal suction pipe in sucking disc body bottom, sets up in the negative pressure suction port of body side and sets up the suction nozzle at universal suction pipe tip, suction nozzle is the loudspeaker form, and its top is connected with universal suction pipe, the radius from the top to the bottom of suction nozzle increases gradually.
According to the technical scheme, the mold taking system is fixed on the moving mold, after the whole machine equipment is opened to the mold taking position, the sucker of the mold taking system pushes the air cylinder (or driven by the servo motor) to drive the sucker to enter the mold cavity, mold drawing is carried out through mold opening movement of the moving mold, the foam model is taken out from the mold to reach the mold opening stop position, the sucker slides to a conveying belt position outside a machine from the sucker sliding rail under the driving of the pushing air cylinder (or driven by the servo motor), negative pressure is closed by the sucker, and the foam model falls off to the conveying belt to complete the whole process.
The invention further provides that: and the feeding pipeline is provided with an air suction execution valve, and the air suction execution valve is arranged at one end close to the air suction port.
Above-mentioned technical scheme sets up on the charge-in pipeline and inhales and carry out the valve and maintain intraductal pressure stability.
The invention further provides that: and a material supplementing execution valve is arranged on the material supplementing pipeline.
In the technical scheme, the feeding pipeline is provided with the feeding execution valve for controlling the opening and closing of the feeding port.
The invention further provides that: and a discharging execution valve is arranged at the discharging port.
In the technical scheme, the discharge port is provided with the discharge execution valve for controlling the opening and closing of the discharge port.
The invention further provides that: the compressed air pipe is provided with an air pressure regulating valve and a pressurizing execution valve, and the pressurizing execution valve is arranged between the air pressure regulating valve and the charging bucket pressurizing port.
The effect that sets up air pressure-regulating valve and pressurization execution valve among the above-mentioned technical scheme lies in can effectual control compressed air intraductal pressure to carry out stable control to it.
The invention further provides that: the upper end of the emptying port of the charging bucket is connected with an emptying execution valve, and the lower end of the emptying port of the charging bucket is connected with a safety valve.
In the technical scheme, the emptying execution valve is arranged for controlling the opening and the relation of the emptying port of the charging bucket, and the safety valve is arranged for ensuring the safety performance of the pipeline.
Drawings
FIG. 1 is a schematic diagram of a feeding system according to an embodiment of the present invention.
FIG. 2 is a top view of a feeding system according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a modular system according to an embodiment of the present invention.
FIG. 4 is a schematic view of a heating system and a cooling system of an embodiment of the invention.
FIG. 5 is a graph illustrating the flow of mold-moving vapor and the valve actuation according to an embodiment of the present invention.
FIG. 6 is a graph illustrating mold-fixing vapor flow and valve operation according to an embodiment of the present invention.
FIG. 7 is a graph illustrating the vacuum cooling operation of an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-7, the invention is an automatic production device for lost foam casting foam models, which comprises a feeding system, a heating system, a cooling system and a mold taking system, wherein the feeding system comprises a pressure-bearing material tank 1, a material suction fan 2 and an air suction port 3, the material suction fan 2 and the air suction port 3 are connected with the material tank 1 through a feeding pipeline 4, a material supplementing port 5 is further connected above the material tank 1, one end of the material supplementing port 5 is further connected with a material bin 6, the material tank 1 is connected with the material bin 6 through the material supplementing port 5, the material tank 1, the material supplementing port 5 and the material bin 6 are connected through the material supplementing pipeline 7, at least 3 material outlets 8 are arranged below the material tank 1, the material outlets 8 are correspondingly connected with a mold 9, the material outlets 8 are connected with the mold 9 through a material outlet pipeline 10, and the mold 9 is provided with a material inlet 91, pan feeding mouth 91 department is provided with automatic feeding gun 11, automatic feeding gun 11 with discharge gate 8 is connected, the top of material jar 1 still is provided with material jar pressurized orifice 12 and material jar evacuation mouth 13, material jar pressurized orifice 12 is connected with compressed air pipe 14.
In addition, the invention is provided with an air suction execution valve 15 on the feeding pipeline, the air suction execution valve 15 is arranged at one end close to the air suction port 3, and the air suction execution valve 15 on the feeding pipeline 4 maintains the pressure in the pipeline to be stable. The feed supplementing pipeline 7 is provided with a feed supplementing execution valve 16, and the feed supplementing pipeline 7 is provided with the feed supplementing execution valve 16 to control the opening and closing of the feed supplementing port 5. Furthermore, a discharge execution valve 17 is arranged at the discharge opening 8. A discharge execution valve 17 is provided at the discharge port 8 for controlling the opening and closing of the discharge port. An air pressure regulating valve 18 and a pressurization execution valve 19 are installed on the compressed air pipe 14, and the pressurization execution valve 19 is arranged between the air pressure regulating valve 18 and the charging bucket pressurization port 12. The air pressure-adjusting valve 18 and the pressurization execution valve 19 function to effectively control the pressure in the compressed air pipe 14 and stably control it. The upper end of material jar evacuation mouth 13 is connected with evacuation execution valve 20, and the lower extreme is connected with relief valve 21, and evacuation execution valve 20 is used for controlling opening and closing of material jar evacuation mouth 13, and the relief valve 21 that sets up is used for guaranteeing the security performance of pipeline.
The manual feeding mode in the prior art is changed, the pulse automatic feeding is adopted, the feeding efficiency is improved, and the fact that the mold is full of beads can be guaranteed. Wherein the charging process comprises 3 steps: 1-material feeding in a material tank; 2-feeding a mould; 3-blowback process, now describe the above 3 flows in detail:
1-material feeding in a material tank: the material suction fan 2 is pneumatic, simultaneously, an air suction execution valve 15 of an air suction port 3 positioned above the charging bucket 1 and a material supplement execution valve 16 of a material supplement port 5 are automatically opened, a pressurization execution valve 19 on a charging bucket pressurization port 12, an evacuation execution valve 20 on a charging bucket emptying port 13 and a material discharge execution valve 17 on a charging bucket discharge port 8, such as A1, B1 and C1 …, are all in a closed state, and due to the action of the material suction fan 2, the inside of the charging bucket 1 is in a negative pressure state at the moment, foam beads in a storage bin are continuously sucked into the charging bucket 1 through the charging bucket material supplement port along a connecting pipeline, wherein an air filter screen is also arranged inside the air suction port 3 of the charging bucket to prevent the foam beads from;
2-feeding a die: and adjusting the pressure of the air pressure regulating valve to 0.1-0.3M Pa according to the feeding requirement of the die. The material suction fan 2 stops, simultaneously, an air suction execution valve 15 of an air suction port 3 positioned above the charging bucket 1 and a material supplement execution valve 16 of a material supplement port 5 are automatically closed, a pressurization execution valve 19 on a charging bucket pressurization port 12 is opened, an emptying execution valve 20 on a charging bucket emptying port 13 is closed, a discharging execution valve 17 on a charging bucket discharge port 8, such as A1, B1 and C1 …, is independently and sequentially opened or simultaneously opened according to the mold feeding requirement, and the discharging execution valves 17, such as A1, B1 and C1 …, can be realized in the total feeding time, and can be switched on and off in a pulse mode, and the pulse type opening time and the closing time can be set according to the mold feeding requirement; the foam beads in the bucket 1 are injected into the mold cavity through the discharge execution valves 17, such as a1, B1, C1 … and the automatic feed gun 11, under the pressurization of the compressed air, while the automatic feed gun 11 mounted on the mold feed port 91 is opened and blows air into the mold, so that the foam beads completely fill the mold.
3-back flushing process: after the feeding of the mold is finished, a pressurizing execution valve 19 on a charging bucket pressurizing port 12 is closed, an emptying execution valve 20 on a charging bucket emptying port 13 is opened, the automatic feeding gun 11 and redundant foam beads in a connecting pipeline are back-blown into the charging bucket 1, and the automatic feeding gun 11 is closed; and finishing the feeding action of the die. The program automatically enters into the heating action, and the automatic feeding system returns to the charging bucket to feed.
After the feeding is finished, the raw materials enter a heating system for heating, the original single steam heating control mode is changed, two-section heating is adopted, the temperature of a proportional valve is controlled in a low-temperature area, the beads in a loose state in a die cavity are in a critical temperature environment which is softened and expanded and cannot be bonded together (the bonding together can block the steam from entering and influence the heating expansion of the foam beads in the thick part), the beads in the loose state are fully subjected to thermal expansion in the die cavity and are mutually extruded, so that gaps among the beads become very small, and the strength of a foam model becomes better and better; at the same time, the blowing agent (pentane) in the beads is fully released (residual blowing agent is also one of the causes of the increase of the gas evolution when the foam model is gasified). Introducing steam with the pressure of 0.1-0.15MPa (set according to the product forming requirement) into the mold cavity in a high-temperature section area, wherein the heating system is connected with the mold 9, the mold 9 comprises a movable mold 9a and a fixed mold 9b, the heating system comprises a steam main pipe 22, a main steam valve 23 and a blowdown main pipe 31, the steam main pipe 22 is connected with the main steam valve 23 through a pipeline, the main steam valve 23 is connected in parallel with a temperature control proportional valve 24, the temperature control proportional valve 24 is further connected with a temperature control proportional valve protection valve 25, the main steam valve 23 is respectively connected with the movable mold 9a and the fixed mold 9b, a movable mold steam valve 26 is arranged between the main steam valve 23 and the movable mold 9a, a mold fixed steam valve 27 is arranged between the main steam valve 23 and the fixed mold 9b, the fixed mold 9b is connected with the blowdown main pipe 31, the movable mold 9a is connected with the blowdown main pipe 31, a mold fixing blow-down valve 28 is arranged between the mold fixing 9b and the main blow-down pipe 31, a mold moving blow-down valve 29 is arranged between the mold moving 9a and the main blow-down pipe 31, and a main blow-down valve 30 is arranged at one end of the main blow-down pipe 31.
The heating system adopted in the technical scheme adopts a 'two-section type' heating process, so that beads in the foam model are fully expanded and fused, the interval between the beads is very small, and steam condensate water is hidden everywhere, so that the foam model with uniform foaming, low water content, high strength, smooth surface and light density can be obtained.
The mode of ventilation in the heating system is shown in fig. 5 and 6, fig. 5 shows a stage of introducing steam into the mold transfer, at the moment, a main steam valve is opened, a temperature control proportional valve protection valve and a temperature control proportional valve are both closed, a mold transfer steam valve is opened, a mold fixing blow-down valve is opened, a main blow-down valve is opened, other valves are in a closed state, and the steam flows in the direction that the steam enters from a steam main pipe, flows through the main steam valve, the mold transfer, the mold fixing and the mold fixing blow-down valve and is then discharged through the main blow-down valve;
in the stage of steam introduction into the fixed mold shown in fig. 6, at this time, the main steam valve is opened, the temperature-controlled proportional valve protection valve and the temperature-controlled proportional valve are both closed, the fixed mold steam valve is opened, the mold-moving blowoff valve is opened, the blowoff main valve is opened, and the other valves are in a closed state, the steam flows in the direction that the steam enters from the steam main pipe, flows through the fixed mold steam valve, the fixed mold, the movable mold and the mold-moving blowoff valve, and then is discharged through the blowoff main valve, and the two ventilation stages are forward steam introduction, in such a way, the steam instantly penetrates through beads, so that the interior of the foam model; in order to ensure the forming quality, after positive steam introduction, the reverse steam introduction is carried out once again, and then the positive steam introduction and the reverse steam introduction are carried out simultaneously, so that the steam in the cavity does not flow, and the surfaces of the foam models are fully fused; because of adopting the 'two-section type' heating process, the beads in the foam model are fully expanded and fused, the interval between the beads is very small, and the steam condensate water is hidden, so that the foam model with uniform foaming, low water content, high strength, smooth surface and light density can be obtained.
After the interior of the mold is heated, the interior of the mold needs to be cooled, the cooling mode adopted by the invention is a vacuum cooling mode, and the mold is directionally cooled by a vacuum negative pressure cooling mode; the vacuum cooling action diagram is shown in fig. 5, at this time, the vacuum valve is in an open state, the mold moving blow-off valve, the mold fixing blow-off valve and the main steam valve are all opened, and then pressure reduction and air extraction are carried out, wherein the principle and the characteristics of vacuum cooling are as follows: 1. according to the principle of water evaporation and heat absorption, heat of an object is absorbed; 2. according to the characteristics of high air pressure, high boiling point of water, low air pressure and low boiling point of water; the water begins to evaporate at low temperature by reducing the air pressure and the boiling point of the water; 3. at the moment that the micro-gaps of the foam model in the film cavity are not completely closed, water vapor in the model is quickly sucked out, so that heat in the model is led out. 4. The cooling speed of the mould is high, the cooling speed of the mould is low, so that the aim of high-temperature demoulding is fulfilled, and the temperature rising-cooling interval of the mould is reduced in the continuous production process, so that the energy consumption is greatly reduced. The technical proposal is that a vacuum valve 323 is connected on the sewage main pipe, as shown in figure 4 and figure 7.
As shown in fig. 3, the mold removing system is fixed to the movable mold, the mold removing system includes an apparatus body 100, a suction cup guide rail 200, and a suction cup 300, a second support table 100b is formed on the apparatus body 100, the second support table 100b is located in the middle of the apparatus body 100, the suction cup guide rail 200 is disposed below the second support table 100b, the suction cup 300 is disposed on the suction cup guide rail 200, and one end of the suction cup 300 is connected to a propulsion cylinder 400. The sucker 300 comprises a sucker body 300a, a universal sucking part pipe 300b arranged at the bottom of the sucker body 300a, a negative pressure suction port arranged on the side surface of the body and a sucking part nozzle 300c arranged at the end part of the universal sucking part pipe 300b, wherein the sucking part nozzle 300c is in a horn shape, the top of the sucking part nozzle is connected with the universal sucking part pipe 300b, and the radius of the sucking part nozzle 300c is gradually increased from the top to the bottom.
A first support table 100a and a third support table 100c are further disposed on both sides of the second support table 100b, the first support table 100a, the second support table 100b, and the third support table 100c are sequentially disposed from top to bottom, and the first support table 100b is provided with a hydraulic station 500 and a hydraulic cylinder 600. A guide post 700 is arranged between the first support table 100a, the second support table 100b and the third support table 100c, wherein an adjusting rod 800 is arranged on one side of the second support table 100b, a digital encoder 900 (or a grating ruler) is further arranged on the first support table 100a, wherein the digital encoder 900 (or the grating ruler) is used for controlling the stroke of the mold moving, one end of the digital encoder 900 (or the grating ruler) is fixed on the mold moving 9a, and the other end thereof is fixed on the mold moving 9 a.
According to the technical scheme, the mold taking system is fixed on the movable mold, after the whole equipment is opened to a mold taking position, a sucker of the mold taking system pushes an air cylinder (or driven by a servo motor) to drive the sucker to enter the mold cavity, and the movable mold is slightly closed under the control of a PLC (programmable logic controller) and a digital encoder (or a grating ruler), so that the sucker can suck a foam model; the suction disc sucks the model, then moves the model, and performs drawing through the die opening movement of the moving model under the control of a PLC (programmable logic controller) and a digital encoder (or a grating ruler), takes out the foam model from the model to reach a die opening stop position, slides to a position of a conveyor belt outside the machine from a suction disc slide rail under the driving of a propelling cylinder (or driven by a servo motor), closes negative pressure by the suction disc, and drops to the conveyor belt to complete the whole process. The suction and the die drawing actions in the step are all completed by the die opening and closing actions of the die moving plate, so that the problem of overhigh cost caused by complex manipulator die taking is avoided, the equipment structure is greatly simplified, and the cost for realizing automation is reduced.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an automatic production facility of lost foam casting foam model which characterized in that: the automatic feeding device comprises a feeding system, a heating system, a cooling system and a mold taking system, wherein the feeding system comprises a pressure-bearing material tank, a material sucking fan and an air suction port, the material sucking fan and the air suction port are connected with the material tank through a feeding pipeline, a material supplementing port is also connected above the material tank, one end of the material supplementing port is also connected with a material bin, the material tank is connected with the material bin through the material supplementing port, the material tank, the material supplementing port and the material bin are connected through a material supplementing pipeline, at least 3 material discharging ports are arranged below the material tank, the material discharging ports are correspondingly connected with a mold, the material discharging ports are connected with the mold through a material discharging pipeline, a material feeding port is arranged on the mold, an automatic material feeding gun is arranged at the material feeding port, the automatic material feeding gun is connected with the material discharging ports, a material, the charging bucket pressurizing port is connected with a compressed air pipe.
2. The automatic production equipment of the lost foam casting foam model according to claim 1, wherein: the heating system is connected with the mould, the mould comprises a moving mould and a fixing mould, the heating system comprises a steam main pipe, a main steam valve and a blowdown main pipe, the steam main pipe is connected with the main steam valve through a pipeline, the main steam valve is connected with a temperature control proportional valve in parallel, the temperature control proportional valve is also connected with a temperature control proportional valve protection valve, the main steam valve is respectively connected with the moving die and the fixed die, a mould moving steam valve is arranged between the main steam valve and the mould moving, a mould fixing steam valve is arranged between the main steam valve and the mould fixing, the fixed mould is connected with the main sewage discharge pipe, the movable mould is connected with the main sewage discharge pipe, a fixed mould sewage discharge valve is arranged between the fixed mould and the main sewage discharge pipe, a mould moving blow-down valve is arranged between the mould moving and the blow-down header pipe, and a blow-down header valve is arranged at one end of the blow-down header pipe.
3. The automatic production equipment of the lost foam casting foam model according to claim 2, wherein: the cooling system comprises a vacuum negative pressure system connected with the sewage main pipe.
4. An automatic production apparatus for lost foam casting foam models according to claim 1, 2 or 3, wherein: the mould taking system is fixed on the moving mould and comprises an equipment body, a sucker guide rail and a sucker, wherein a second supporting table is formed on the equipment body and is located in the middle of the equipment body, the sucker guide rail is arranged below the second supporting table, the sucker is arranged on the sucker guide rail, and one end of the sucker is connected with a propelling cylinder.
5. The automatic production equipment of the lost foam casting foam model according to claim 4, wherein the production equipment comprises: the sucking disc includes the sucking disc body, sets up universal suction pipe in sucking disc body bottom, sets up in the negative pressure suction port of body side and sets up the suction nozzle at universal suction pipe tip, suction nozzle is the loudspeaker form, and its top is connected with universal suction pipe, the radius from the top to the bottom of suction nozzle increases gradually.
6. The automatic production equipment of the lost foam casting foam model according to claim 1, wherein: and the feeding pipeline is provided with an air suction execution valve, and the air suction execution valve is arranged at one end close to the air suction port.
7. The automatic production equipment of the lost foam casting foam model according to claim 1, wherein: and a material supplementing execution valve is arranged on the material supplementing pipeline.
8. The automatic production equipment of the lost foam casting foam model according to claim 1, wherein: and a discharging execution valve is arranged at the discharging port.
9. The automatic production equipment of the lost foam casting foam model according to claim 1, wherein: the compressed air pipe is provided with an air pressure regulating valve and a pressurizing execution valve, and the pressurizing execution valve is arranged between the air pressure regulating valve and the charging bucket pressurizing port.
10. The automatic production equipment of the lost foam casting foam model according to claim 1, wherein: the upper end of the emptying port of the charging bucket is connected with an emptying execution valve, and the lower end of the emptying port of the charging bucket is connected with a safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243903.8A CN111360197A (en) | 2020-03-31 | 2020-03-31 | Automatic production equipment for lost foam casting foam model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243903.8A CN111360197A (en) | 2020-03-31 | 2020-03-31 | Automatic production equipment for lost foam casting foam model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111360197A true CN111360197A (en) | 2020-07-03 |
Family
ID=71201037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010243903.8A Pending CN111360197A (en) | 2020-03-31 | 2020-03-31 | Automatic production equipment for lost foam casting foam model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111360197A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974938A (en) * | 2020-08-27 | 2020-11-24 | 杭州欧宸科技有限公司 | Full-automatic foam mold forming machine |
| CN112008040A (en) * | 2020-08-27 | 2020-12-01 | 河南天缘新材料有限公司 | Secondary forming process of lost foam white mold defective products |
| CN112045148A (en) * | 2020-08-27 | 2020-12-08 | 河南天缘新材料有限公司 | Lost foam equidirectional pulse type double-gun or multi-gun automatic feeding process |
| CN112605337A (en) * | 2020-11-15 | 2021-04-06 | 浙大城市学院 | Forming method of tensile sample EPS foam model |
| CN114082885A (en) * | 2021-11-22 | 2022-02-25 | 常州钜苓铸造有限公司 | Forming machine process special for vertical lost foam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145375A (en) * | 2011-04-09 | 2011-08-10 | 山东信达汽车配件制造有限公司 | Vacuum auxiliary impression-taking method and equipment for lost foam casting and lost foam pattern molding |
| CN202052907U (en) * | 2011-04-09 | 2011-11-30 | 山东信达汽车配件制造有限公司 | Auxiliary mold taking device of full-automatic expendable pattern casting molding machine |
| CN205614015U (en) * | 2016-04-11 | 2016-10-05 | 文华学院 | White mould former |
| CN107150105A (en) * | 2017-06-21 | 2017-09-12 | 阳城县华王通用离心铸管厂 | Thin-wall pipe evaporative pattern EPS beads pressurization filling device |
| CN208495709U (en) * | 2018-07-24 | 2019-02-15 | 云南天创机电设备有限公司 | A kind of foaming and forming apparatus of the white mould of evaporative pattern |
| CN110842140A (en) * | 2019-12-19 | 2020-02-28 | 十堰众柴发动机部件制造有限公司 | Forming device for lost foam white mold |
-
2020
- 2020-03-31 CN CN202010243903.8A patent/CN111360197A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145375A (en) * | 2011-04-09 | 2011-08-10 | 山东信达汽车配件制造有限公司 | Vacuum auxiliary impression-taking method and equipment for lost foam casting and lost foam pattern molding |
| CN202052907U (en) * | 2011-04-09 | 2011-11-30 | 山东信达汽车配件制造有限公司 | Auxiliary mold taking device of full-automatic expendable pattern casting molding machine |
| CN205614015U (en) * | 2016-04-11 | 2016-10-05 | 文华学院 | White mould former |
| CN107150105A (en) * | 2017-06-21 | 2017-09-12 | 阳城县华王通用离心铸管厂 | Thin-wall pipe evaporative pattern EPS beads pressurization filling device |
| CN208495709U (en) * | 2018-07-24 | 2019-02-15 | 云南天创机电设备有限公司 | A kind of foaming and forming apparatus of the white mould of evaporative pattern |
| CN110842140A (en) * | 2019-12-19 | 2020-02-28 | 十堰众柴发动机部件制造有限公司 | Forming device for lost foam white mold |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111974938A (en) * | 2020-08-27 | 2020-11-24 | 杭州欧宸科技有限公司 | Full-automatic foam mold forming machine |
| CN112008040A (en) * | 2020-08-27 | 2020-12-01 | 河南天缘新材料有限公司 | Secondary forming process of lost foam white mold defective products |
| CN112045148A (en) * | 2020-08-27 | 2020-12-08 | 河南天缘新材料有限公司 | Lost foam equidirectional pulse type double-gun or multi-gun automatic feeding process |
| CN112605337A (en) * | 2020-11-15 | 2021-04-06 | 浙大城市学院 | Forming method of tensile sample EPS foam model |
| CN114082885A (en) * | 2021-11-22 | 2022-02-25 | 常州钜苓铸造有限公司 | Forming machine process special for vertical lost foam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111360197A (en) | Automatic production equipment for lost foam casting foam model | |
| CN201108955Y (en) | Gravity casting piezocrystallization forming apparatus | |
| US20180029271A1 (en) | Device and method for the suction of air in injection molds and the subsequent expulsion of molded pieces | |
| CN108393438B (en) | Process device and production method for casting bearing cover castings by iron mold sand-lined vertical parting | |
| CN105397035B (en) | A kind of device for casting cylinder cap | |
| CN208495709U (en) | A kind of foaming and forming apparatus of the white mould of evaporative pattern | |
| CN211990883U (en) | Low-pressure casting die for rear auxiliary cavity of hydraulic coupler | |
| CN111482578B (en) | Tin ring casting equipment and method | |
| CN111036844A (en) | Precision investment casting device and casting method thereof | |
| CN206898353U (en) | A kind of disappearance die-cast aluminum device | |
| CN103552200B (en) | Automobile EPP (foamed polypropylene) steering wheel mould and automobile steering wheel | |
| CN201361691Y (en) | Device for eliminating carbon defect of lost foam iron castings | |
| CN111113954B (en) | Preparation method of low-density heat-proof composite material revolving body part | |
| CN113263691A (en) | Injection mold with automatic demolding function and using method | |
| CN206780937U (en) | A kind of depanning equipment of perambulator | |
| CN208841725U (en) | A kind of heat transfer flow distribution plate production injection mold being quickly cooled down | |
| CN112589069A (en) | Quick radiating auto parts prevents mould device that produces bubble | |
| CN112318838A (en) | Plastic injection mold convenient to cooling drawing of patterns | |
| CN204035470U (en) | Y2 motor cabinet lost foam mould casting system | |
| CN107297458B (en) | Vacuum shell mold and shell molding method | |
| CN206663687U (en) | A kind of LED injection mold | |
| CN205519494U (en) | Motor casing disappearance mould that a mould is many | |
| CN111590740A (en) | Movable maintenance device and method for production of special-shaped component | |
| CN217166372U (en) | Automatic disappearance mould valve mould of filling | |
| CN203817302U (en) | Shooting plate water-cooling system of core shooting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200703 |