CN114130967A - Sand mold composite coating unit suitable for flexible forming production line - Google Patents
Sand mold composite coating unit suitable for flexible forming production line Download PDFInfo
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- CN114130967A CN114130967A CN202111432218.0A CN202111432218A CN114130967A CN 114130967 A CN114130967 A CN 114130967A CN 202111432218 A CN202111432218 A CN 202111432218A CN 114130967 A CN114130967 A CN 114130967A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
- B22C23/02—Devices for coating moulds or cores
Abstract
The invention discloses a sand mold composite coating unit suitable for a flexible forming production line, which comprises a supporting frame, at least one operation station, a mechanical arm, a movement mechanism, a moving mechanism, an electronic tag, a tag reader and a control mechanism, wherein the mechanical arm is connected with the movement mechanism; the moving mechanism is connected with the manipulator, the moving mechanism is arranged on the supporting frame and connected with the moving mechanism, the electronic tag is used for identifying the type of the sand mold to be operated and the operation type, and the tag reader is in wireless communication connection with the electronic tag. During operation, the tag reader is in wireless communication with the electronic tag, corresponding electric signals are transmitted to the control mechanism, the control mechanism controls the moving mechanism, the moving mechanism and the coating device according to the electric signals, the moving mechanism drives the moving mechanism to move to an operation station, the coating device starts to operate, and the moving mechanism drives the mechanical arm to move, such as overturning and the like, so as to assist in finishing coating. Therefore, the invention can realize a plurality of coating processes of the sand mold, save the cost of equipment, personnel and field, and improve the production environment quality of operators.
Description
Technical Field
The invention relates to the technical field of sand mold casting, in particular to a sand mold composite coating unit suitable for a flexible forming production line.
Background
The individualized casting mold flexible forming production line takes a non-mold composite precise forming technology as a core, takes a high-efficiency digital non-mold casting precise forming machine and a high-efficiency digital sand mold printing precise forming machine as main bodies, and builds a flexible manufacturing production line suitable for various small and medium-sized individualized casting molds through customizing pre-and post-process equipment.
Before casting a casting, the sand mold needs to be coated with paint, but different coating processes, such as spraying, curtain coating, dip coating and the like, need to be adopted because the casting process requirements of different castings are different. The common coating equipment can only realize a single coating process, cannot meet the requirements of individual coating processes, needs different coating equipment and operators for different coating processes, and increases the equipment, personnel and site costs.
Disclosure of Invention
Aiming at the defects, the technical problems to be solved by the invention are as follows: the sand mold composite coating unit is suitable for a flexible forming production line, can realize multiple coating processes of automatic spraying, curtain coating, dip coating and the like of sand molds, saves equipment, personnel and site cost, avoids the damage of working environment to human bodies, and improves the production environment quality of operators.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a sand mould compound coating unit that sand is applicable to flexible shaping production line, includes braced frame, still includes: the coating device comprises at least one operation station, wherein each operation station is provided with a coating device for coating; the manipulator is used for clamping a sand mold to be operated; the movement mechanism is connected with the manipulator and drives the manipulator to move; the moving mechanism is arranged on the supporting frame and connected with the moving mechanism; the electronic tag is used for recording the type of the sand mold to be operated and the coating process; the tag reader is in wireless communication connection with the electronic tag; the control mechanism is in communication connection with the coating device, the movement mechanism, the moving mechanism and the tag reader respectively; the label reader is in wireless communication with the electronic label to obtain the type of the sand mold to be operated and the coating process, corresponding electric signals are transmitted to the control mechanism, the control mechanism controls the moving mechanism, the moving mechanism and the coating device according to the electric signals, the moving mechanism drives the moving mechanism to move to the corresponding operation station, the coating device starts coating, and the moving mechanism drives the mechanical arm to move.
Preferably, the motion mechanism comprises a lifting mechanism, and the lifting mechanism comprises a lifting rod vertically arranged on the motion mechanism, a roller screw in transmission connection with the lifting rod, and a lifting motor for driving the roller screw to rotate; the lifting rod is connected with the manipulator, and the lifting motor is in communication connection with the control mechanism.
Preferably, the manipulator comprises two mechanical arms, and each mechanical arm is provided with a profiling fixed block; the motion mechanism further comprises a turnover mechanism which is arranged in a one-to-one mode with the mechanical arm, the turnover mechanism comprises an upper chain wheel, a lower chain wheel, a chain and a turnover motor, the upper chain wheel and the lower chain wheel are arranged from top to bottom, the chain is arranged between the upper chain wheel and the lower chain wheel, the upper chain wheel is connected with an output shaft of the turnover motor, the lower chain wheel is connected with the profiling fixed block through a transmission shaft, and the turnover motor is in communication connection with the control mechanism.
Preferably, the movement mechanism further comprises an opening and closing mechanism, the opening and closing mechanism comprises a fixed plate connected with the lifting rod, and a first opening and closing driving oil cylinder and a second opening and closing driving oil cylinder which are fixed on the fixed plate, and the first opening and closing driving oil cylinder and the second opening and closing driving oil cylinder are arranged back to back; the opening and closing mechanism further comprises a first connecting block and a second connecting block which are arranged corresponding to the two mechanical arms, the first connecting block is connected with the end part of a piston rod of the first opening and closing driving oil cylinder, and the first connecting block is further fixedly connected with the top end of the mechanical arm on the corresponding side; the second connecting block is connected with the end part of a piston rod of the second opening and closing driving oil cylinder, and the second connecting block is fixedly connected with the top end of the mechanical arm at the corresponding side.
Preferably, the coating unit further comprises a conveying mechanism, the conveying mechanism comprises a conveying support and a conveying motor, conveying edge rollers are arranged on two sides of the conveying support, the conveying edge rollers are in transmission connection with the conveying motor, and the conveying motor is in communication connection with the control mechanism; the label reader is arranged on the conveying bracket.
Preferably, the moving mechanism is a linear moving mechanism, and all the operation stations are arranged in a moving direction of the linear moving mechanism; the linear moving mechanism comprises two linear guide rails arranged on the supporting frame, a moving base arranged between the two linear guide rails in a spanning mode, and a moving motor connected with the moving base, and the moving motor is in communication connection with the control mechanism; the lifting mechanism is arranged on the movable base;
the conveying direction of the conveying support is perpendicular to the extending direction of the linear guide rail.
Preferably, the coating unit further comprises a tray for placing a sand mold to be operated, and the electronic tag is arranged at the bottom of the tray.
Preferably, the coating unit comprises three operation stations, namely a curtain coating station, a spraying station and a dip coating station; the spraying station comprises a plurality of spraying nozzles, and all the spraying nozzles are suspended above the middle position of the conveying bracket; the curtain coating station comprises a plurality of curtain coating nozzles, and all the curtain coating nozzles are arranged on one side of the conveying support; the dip-coating station comprises a dip-coating box, and the dip-coating box is arranged on the other side of the conveying support.
Preferably, the coating unit further comprises a guide structure, and the guide structure comprises a lifting guide assembly and/or an opening and closing guide assembly; the lifting guide assembly comprises at least one vertically arranged vertical guide column, each vertical guide column is fixed on the moving mechanism, and the bottom end of each vertical guide column is connected with the fixed plate; the opening and closing guide assembly comprises at least one horizontal guide column which is horizontally arranged, two ends of each horizontal guide column are respectively fixed on the fixed seat, and each horizontal guide column penetrates through the first connecting block and the second connecting block.
Preferably, the supporting frame comprises two horizontally arranged supporting beams, and each supporting beam is provided with one linear guide rail; the two sides of the movable base are respectively provided with a sliding block, and the sliding blocks are arranged on the corresponding linear guide rails.
After the technical scheme is adopted, the invention has the beneficial effects that:
the sand mold composite coating unit suitable for the flexible forming production line comprises a supporting frame, at least one operation station, a manipulator, a movement mechanism, a moving mechanism, an electronic tag, a tag reader and a control mechanism; each operation station is provided with a coating device for coating, the manipulator is used for clamping a sand mold to be operated, the moving mechanism is connected with the manipulator, the moving mechanism drives the manipulator to move, the moving mechanism is arranged on the supporting frame and connected with the moving mechanism, the electronic tag is used for recording the type and the coating process of the sand mold to be operated, and the tag reader is in wireless communication connection with the electronic tag. During operation, the tag reader is in wireless communication with the electronic tag to acquire the type of the sand mold to be operated and a coating process, corresponding electric signals are transmitted to the control mechanism, the control mechanism controls the moving mechanism, the moving mechanism and the coating device according to the electric signals, the moving mechanism drives the moving mechanism to move to a corresponding operation station, the coating device is started to perform coating, and meanwhile, the moving mechanism drives the manipulator to move, such as turnover and the like, so as to assist in finishing coating. Therefore, the invention can realize a plurality of coating processes of the sand mold, saves the cost of equipment, personnel and field, does not need manual operation, avoids the damage of working environment to body, and improves the production environment quality of operators.
The moving mechanism comprises a lifting mechanism, and the lifting mechanism comprises a lifting rod vertically arranged on the moving mechanism, a roller screw in transmission connection with the lifting rod, and a lifting motor for driving the roller screw to rotate; the lifting rod is connected with the manipulator, and lifting motor and control mechanism communication connection drive the manipulator through elevating system and go up and down to satisfy multiple operation demand.
The mechanical arm comprises two mechanical arms, and each mechanical arm is provided with a profiling fixed block; the motion mechanism still includes the tilting mechanism that sets up with the arm one to one, and tilting mechanism includes last sprocket and the lower sprocket that sets up from top to bottom, chain and upset motor, the chain establish last sprocket with between the lower sprocket, the output shaft of going up sprocket and upset motor, the lower sprocket passes through the transmission shaft and is connected with the profile modeling fixed block, upset motor and control mechanism communication connection, tilting mechanism pass through the profile modeling fixed block and drive the sand mould upset, make coating flow down from the sand mould, or supplementary coating application etc..
The movement mechanism also comprises an opening and closing mechanism, the opening and closing mechanism comprises a fixed plate connected with the lifting rod, a first opening and closing driving oil cylinder and a second opening and closing driving oil cylinder, and the first opening and closing driving oil cylinder and the second opening and closing driving oil cylinder are fixed on the fixed plate and are arranged back to back; the opening and closing mechanism further comprises a first connecting block and a second connecting block which are arranged corresponding to the two mechanical arms, the first connecting block is connected with the end part of a piston rod of the first opening and closing driving oil cylinder, and the first connecting block is fixedly connected with the top end of the corresponding side mechanical arm; the second connecting block is connected with the end part of a piston rod of the second opening and closing driving oil cylinder, the second connecting block is fixedly connected with the top end of the corresponding side mechanical arm, the two mechanical arms are driven to open and close through the opening and closing mechanism, and therefore sand molds of different models are clamped, and universality is improved.
The coating unit also comprises a conveying mechanism, the conveying mechanism comprises a conveying support and a conveying motor, conveying side rollers are arranged on two sides of the conveying support, the conveying side rollers are in transmission connection with the conveying motor, and the conveying motor is in communication connection with the control mechanism; and a label reader is arranged on the conveying support to realize automatic conveying of the sand mold.
Because the application unit still includes the tray that is used for placing the sand mould of treating the operation, the bottom of tray sets up electronic tags, treats the operation sand mould with the help of tray transport and sign, rational configuration structure.
The coating unit comprises three operation stations, namely a spray coating station, a spraying station and a dip coating station; the spraying station comprises a plurality of spraying nozzles, and all the spraying nozzles are suspended above the middle position of the conveying bracket; the curtain coating station comprises a plurality of curtain coating nozzles, and all the curtain coating nozzles are arranged on one side of the conveying support; the dip-coating station comprises a dip-coating box, the dip-coating box is arranged on the other side of the conveying support, the spray-coating station, the dip-coating station and the dip-coating station are reasonably arranged, and the dip-coating station can move among the three operation stations through a linear moving mechanism.
The coating unit also comprises a guide structure, and the guide structure comprises a lifting guide assembly and/or an opening and closing guide assembly; the lifting guide assembly comprises at least one vertical guide column which is vertically arranged, each vertical guide column is fixed on the moving mechanism, and the bottom end of each vertical guide column is connected with the fixed plate; the opening and closing guide assembly comprises at least one horizontal guide column horizontally arranged, the two ends of each horizontal guide column are respectively fixed on the fixing seat, and each horizontal guide column penetrates through the first connecting block and the second connecting block, so that the manipulator can be reliably lifted and opened and closed.
In conclusion, the sand mold composite coating unit solves the technical problems that only a single coating process can be realized in the prior art, and different coating equipment and operators are needed for different coating processes, so that the equipment, personnel and site costs are increased, and the like; the invention is provided with a plurality of operation stations, three operation stations are arranged along the moving direction of the linear moving mechanism, the coating process of the sand mold is automatically identified through the electronic tag and the tag reader, and the linear moving mechanism, the lifting mechanism, the opening and closing mechanism and the turnover mechanism are controlled according to the coating, so that the manipulator clamps the sand mold and moves to the corresponding operation station to finish coating, thereby saving manpower and equipment and improving the universality of the equipment.
Drawings
FIG. 1 is a schematic structural view of a sand mold composite coating unit according to the present invention;
FIG. 2 is a schematic structural view of another angle of the sand composite coating unit in the invention;
FIG. 3 is a schematic structural view of a sand mold composite coating unit according to the present invention when it is tilted;
FIG. 4 is a schematic structural view of a manipulator and a turnover mechanism according to the present invention;
FIG. 5 is a schematic view of the structure of the tray of the present invention;
in the figure: 1-conveying mechanism, 10-conveying frame, 11-conveying edge roller, 2-supporting frame, 20-supporting beam, 21-pillar, 3-manipulator, 30-profiling fixed block, 31-mechanical arm, 4-lifting mechanism, 40-roller screw, 41-lifting motor, 42-lifting rod, 5-moving mechanism, 50-linear guide rail, 51-moving base, 52-moving motor, 53-sliding block, 6-opening and closing mechanism, 60-fixed plate, 61-first opening and closing driving oil cylinder, 62-first connecting block, 63-second opening and closing driving oil cylinder, 64-second connecting block, 7-turnover mechanism, 70-turnover motor, 71-upper chain wheel, 72-lower chain wheel, 73-chain, 80-a label reader, 81-an electronic label, 9-a tray, 100-a spray coating station, 1000-a spray coating pipe, 1001-a spray coating box, 1002-a spray coating nozzle, 110-a spray coating station, 1100-a spray coating bracket, 120-a spray coating station, 1200-a spray coating box, 12-a vertical guide column and 13-a horizontal guide column.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 5, the sand mold composite coating unit suitable for the flexible forming production line comprises a support frame 2, at least one working station, a manipulator 3, a moving mechanism 5, an electronic tag 81, a tag reader 80, a control mechanism, a tray 9 and a conveying mechanism 1.
The tag reader 80 is in wireless communication connection with the electronic tag 81, the electronic tag 81 is used for recording the type and the coating process of the sand mold to be operated, the top of the tray 9 is used for placing the sand mold to be operated, the electronic tag 81 is arranged at the bottom of the tray 9, and the tag reader 80 is arranged on the conveying mechanism 1.
The moving mechanism comprises a lifting mechanism 4, an opening and closing mechanism 6 and a turnover mechanism 7, the lifting mechanism 4 is used for driving the manipulator 3 to lift, the opening and closing mechanism 6 is used for driving the manipulator to open and close so as to clamp or loosen the sand mold, and the turnover mechanism 7 is used for driving the manipulator 3 to turn over.
The manipulator 3 comprises two mechanical arms 31, each mechanical arm 31 is provided with a profiling fixed block 30, each profiling fixed block 30 is provided with a proximity sensor, and the proximity sensors are electrically connected with a control mechanism to adjust the opening and closing distance of the two mechanical arms 31 and clamp sand molds of different sizes.
The control mechanism is respectively in communication connection with the coating device, the lifting mechanism 4, the opening and closing mechanism 6, the turnover mechanism 7, the moving mechanism 5, the conveying mechanism 1 and the label reader 80, and the control mechanism can be but is not limited to a PLC or an STM32 series single chip microcomputer.
The conveying mechanism 1 conveys the tray 9, the label reader 80 and the electronic label 81 are in wireless communication in the conveying process, the label reader 80 and the electronic label 81 are in wireless communication, the type and the coating process of a sand mold on the tray 9 are obtained, corresponding electric signals are transmitted to the control mechanism, the control mechanism controls the lifting mechanism 4 and the opening and closing mechanism 6 to act according to the electric signals, the mechanical arm 31 is enabled to clamp the sand mold and ascend to a certain height, then the moving mechanism 5 is controlled to move according to the electric signals, the moving mechanism 5 drives the moving mechanism to move to a corresponding operation station, the coating device is started to operate after the sand mold is in place, the overturning mechanism 7 acts after the operation is finished, the sand mold is overturned, and coating liquid is enabled to flow down from the sand mold. After the operation is finished, the moving mechanism 5 moves back, the lifting mechanism 4 and the opening and closing mechanism 6 place the sand molds on the tray 9, and the conveying mechanism 1 conveys the sand molds through the tray 9. Therefore, the invention can realize a plurality of coating processes of the sand mold, saves the cost of equipment, personnel and field, does not need manual operation, avoids the damage of working environment to body, and improves the production environment quality of operators.
As shown in fig. 1, the conveying mechanism 1 comprises a conveying support and a conveying motor, wherein conveying edge rollers 11 are arranged on two sides of the conveying support, the conveying edge rollers 11 are in transmission connection with the conveying motor, and the conveying motor is in communication connection with a control mechanism; a tag reader 80 is positioned above the delivery carriage. In this embodiment, each conveying edge roller 11 is provided with a sprocket, and all the sprockets are connected with the output shaft of the conveying motor through chains, which of course does not limit the listed transmission connection mode.
As shown in fig. 1 to 3, the moving mechanism 5 is a linear moving mechanism 5, and all the work stations are arranged in a moving direction of the linear moving mechanism 5; the linear moving mechanism 5 comprises two linear guide rails 50 arranged on the supporting frame 2, a moving base 51 arranged on the linear guide rails 50 in a spanning mode, and a moving motor 52 connected with the moving base 51, and the moving motor 52 is in communication connection with the control mechanism; the upper surface of the movable base 51 is provided with the lifting mechanism 4; and the conveying direction of the conveying support is perpendicular to the extending direction of the linear guide 50. Similarly, the linear movement mechanism 5 is not limited to the above-mentioned structure, and the movement between the operation stations can be realized as long as the linear movement mechanism can move linearly with the movement mechanism.
In this embodiment, the supporting frame 2 includes two horizontally disposed supporting beams 20, and a linear guide 50 is disposed on each supporting beam 20; the movable base 51 is provided with slide blocks 53 on both sides thereof, and the slide blocks 53 are provided on the corresponding linear guide 50. The supporting frame 2 further comprises vertically arranged pillars 21, and a base is arranged at the bottom end of each pillar 21.
As shown in fig. 1 to 3 in common, the coating unit includes three operation stations, each of which is provided with a coating device for coating paint; the three operation stations are respectively a curtain coating station 100, a spraying station 110 and a dip coating station 120; the spraying station 110 comprises a plurality of spraying nozzles, all the spraying nozzles are suspended above the middle position of the conveying support, all the spraying nozzles are fixed on a spraying support 1100, the bottom end of the spraying support 1100 is fixed on the ground, and the top end of the spraying support 1100 extends forwards to the middle of the conveying frame 10; the curtain coating station 100 comprises a plurality of curtain coating nozzles 102, all the curtain coating nozzles 102 are arranged on one side of the conveying support, in a preferred scheme, all the curtain coating nozzles 102 are fixed on one curtain coating pipe 1000, the curtain coating pipe 1000 is fixed on two support posts 21 of a supporting frame 2, a curtain coating box 1001 is arranged below the curtain coating pipe 1000, and all the curtain coating nozzles 102 are arranged along the conveying direction of the conveying mechanism 1; the dip coating station 120 includes a dip coating tank 1200, and the dip coating tank 1200 is provided on the other side of the conveying support.
After the three operation stations are arranged according to the mode, the spraying process is positioned in the middle, and when the spraying process is needed, the tray 9 is conveyed to the middle of the conveying frame 10 by the conveying mechanism 1, and then the spraying nozzle sprays; when the curtain coating process is needed, the manipulator 3 clamps the sand mold positioned in the middle of the conveying frame 10 and ascends, the linear moving mechanism 5 drives the manipulator 3 to clamp the sand mold and move to the position of the curtain coating nozzle 102, and the curtain coating nozzle 102 sprays; when the dip coating process is needed, the manipulator 3 clamps the sand mold and moves to the dip coating box 1200, and then the sand mold is lowered to be immersed into the dip coating box 1200.
As shown in fig. 1, the motion mechanism includes a lifting mechanism 4, the lifting mechanism 4 includes a lifting rod 42 vertically disposed on a movable base 51, a roller screw 40 in transmission connection with the lifting rod 42, and a lifting motor 41 for driving the roller screw 40 to rotate; the lifting rod 42 is connected with the manipulator 3, the lifting motor 41 is in communication connection with the control mechanism, and the manipulator 3 is driven to lift through the lifting mechanism 4 so as to meet various operation requirements. The elevating mechanism 4 is not limited to the above-mentioned structure, and an electric push rod, an oil cylinder, or the like may be used.
As shown in fig. 4, the movement mechanism further includes a turnover mechanism 7 disposed one-to-one with the mechanical arm 31, the turnover mechanism 7 includes an upper chain wheel 71 and a lower chain wheel 72 disposed up and down, a chain 73 and a turnover motor 70, the chain 73 is disposed between the upper chain wheel 71 and the lower chain wheel 72, the upper chain wheel 71 is connected to an output shaft of the turnover motor 70, the lower chain wheel 72 is connected to the profiling fixing block 30 through a transmission shaft, the turnover motor 70 is in communication connection with the control mechanism, the turnover mechanism 7 drives the sand mold to turn over through the profiling fixing block 30, so that the paint flows down from the sand mold, or assists in coating the paint, and the like.
In the embodiment, the upper chain wheel 71, the lower chain wheel 72 and the chain 73 are all arranged in the mechanical arm 31, the overturning motor 70 is arranged outside the mechanical arm 31, and the overturning mechanism 7 can drive the copying fixing block 30 to overturn and simultaneously prevent the copying fixing block from being dip-dyed by the coating in the dip-coating box 1200.
As shown in fig. 3, the motion mechanism further includes an opening and closing mechanism 6, the opening and closing mechanism 6 includes a fixing plate 60 connected to the lifting rod 42, and a first opening and closing driving oil cylinder 61 and a second opening and closing driving oil cylinder 63 fixed on the fixing plate 60, the first opening and closing driving oil cylinder 61 and the second opening and closing driving oil cylinder 63 are arranged back to back; the opening and closing mechanism 6 further comprises a first connecting block 62 and a second connecting block 64 which are arranged corresponding to the two mechanical arms 31, the first connecting block 62 is connected with the end part of a piston rod of the first opening and closing driving oil cylinder 61, and the first connecting block 62 is further fixedly connected with the top end of the corresponding side mechanical arm 31; the second connecting block 64 is connected with the end of the piston rod of the second opening and closing driving oil cylinder 63, the second connecting block 64 is fixedly connected with the top end of the corresponding side mechanical arm 31, and the two mechanical arms 31 are driven to open and close through the opening and closing mechanism 6 so as to clamp sand molds of different models and improve the universality.
As shown collectively in fig. 1-3, the coating unit further includes a guide structure including a lift guide assembly and/or an opening and closing guide assembly; the lifting guide assembly comprises at least one vertically arranged vertical guide column 12, in the embodiment, four vertical guide columns 12 are arranged, each vertical guide column 12 is fixed on the moving mechanism 5, and the bottom end of each vertical guide column 12 is connected with the fixing plate 60; the guide assembly that opens and shuts includes the horizontal guide post 13 of at least a horizontal setting, has set up two horizontal guide posts 13 in this embodiment, and the both ends of each horizontal guide post 13 are fixed respectively on the fixing base, and each horizontal guide post 13 all pierces through first connecting block 62 and second connecting block 64.
As shown in fig. 1 to 5, the specific working principle of the present invention is as follows: the sand mold processed by the individualized casting mold flexible forming production line is placed on a tray 9, an electronic tag 81 (abbreviated as RFID in English) is arranged below the tray 9, and the sand mold type and the coating process are recorded (written) on the electronic tag 81. The conveying mechanism 1 conveys the tray 9, when the electronic tag 81 enters a wireless communication distance, the tag reader 80 on the conveying frame 10 communicates with the electronic tag 81, reads the sand mold type and the coating process recorded on the electronic tag 81, converts the obtained sand mold type and the coating process into corresponding electric signals and transmits the electric signals to the control mechanism, the control mechanism identifies the electric signals, the identification can be realized by matching the electric signals with preset operation signals, corresponding control signals are generated according to matching results, and the conveying mechanism 1, the linear moving mechanism 5, the moving mechanism and the coating device are controlled according to the control signals. The three operation stations have the following specific working processes:
the spraying station 110: when the label reader 80 reads that the coating process recorded by the electronic label 81 is a spraying process, the conveying mechanism 1 conveys the tray 9 to the spraying support 1100, the moving motor 52 is started to drive the moving base 51 to move to the position above the sand mold along the linear guide rail 50, the lifting motor 41 is started to drive the roller screw 40 to drive the lifting rod 42 to descend to a clamping height, the clamping height can be preset in the control mechanism, and the clamping height is arranged corresponding to the sand mold type, so that the control mechanism can adjust the corresponding clamping height according to the sand mold type obtained by the label reader 80. After the manipulator 3 is driven to a clamping height by the lifting mechanism 4, the first opening-closing driving oil cylinder 61 and the second opening-closing driving oil cylinder 63 simultaneously act to drive the two mechanical arms 31 to open and close, in the process of opening and closing the mechanical arms 31, the proximity sensor on the profiling fixed block 30 detects the distance between the two mechanical arms 31 in real time, when the two mechanical arms 31 move to a proper position, the sand mold is clamped, the lifting motor 41 drives the sand mold to rise to a certain spraying height, the spraying height corresponds to the coating process and is preset, at the moment, the overturning motor 70 is started, the overturning motor 70 drives the profiling fixed block 30 to rotate through the upper chain wheel 71, the lower chain wheel 72 and the chain 73, the sand mold is finally driven to rotate, the rotation angle is also preset according to the spraying process, after the rotation is preset, the spraying device sprays the sand mold to the end through the spraying nozzle, after the spraying is finished, the reverse operation is carried out, the sand mold is placed on the tray 9, and the conveying mechanism 1 conveys the tray 9.
A curtain coating station 100: when the label reader 80 reads that the coating process recorded by the electronic label 81 is a curtain coating process, the sand mold is conveyed to be clamped, the process is the same as that of the spraying station 110, after the manipulator 3 clamps the sand mold, the lifting motor 41 drives the sand mold to rise to a certain curtain coating height, the curtain coating height is preset corresponding to the coating process, at the moment, the moving motor 52 is started again to drive the moving base 51 to slide to the upper part of the curtain coating box 1001 along the linear guide rail 50, then the overturning motor 70 is started, the overturning motor 70 drives the profiling fixed block 30 to rotate through the upper chain wheel 71, the lower chain wheel 72 and the chain 73, finally the sand mold is driven to rotate, the rotation angle is also preset according to the curtain coating process, after the rotation is at the preset angle, the curtain coating device finishes curtain coating the sand mold through the curtain coating nozzle 102, after the curtain coating is finished, the overturning mechanism 7 drives the sand mold to rotate until the coating on the sand mold runs out, only according to the above reverse operation, the sand mold is placed on the tray 9, and the conveying mechanism 1 conveys the tray 9.
Dip coating station 120: when the label reader 80 reads that the coating process recorded by the electronic label 81 is a dip coating process, the coating process is carried to be clamped, the process is the same as the spraying station, after the manipulator 3 clamps the sand mold, the moving motor 52 is started again at the moment to drive the moving base 51 to slide to the upper side of the dip coating box 1200 along the linear guide rail 50, then the lifting motor 41 is started, the lifting rod 42 descends to drive the sand mold to dip below the liquid level of the coating in the dip coating box 1200, after the dip coating is completed, the lifting mechanism 4 drives the sand mold to ascend to separate from the dip coating liquid, the turnover mechanism 7 drives the sand mold to rotate until the coating on the sand mold completely flows out, the sand mold is placed on the tray 9 according to the reverse operation, and the conveying mechanism 1 conveys the tray 9.
The above-described preferred embodiments of the present invention are not intended to limit the present invention, and any modifications, equivalent modifications, improvements of the sand composite coating unit suitable for the flexible forming line, etc. within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a sand mould composite coating unit suitable for flexible shaping production line, includes braced frame, its characterized in that still includes:
the coating device comprises at least one operation station, wherein each operation station is provided with a coating device for coating;
the manipulator is used for clamping a sand mold to be operated;
the movement mechanism is connected with the manipulator and drives the manipulator to move;
the moving mechanism is arranged on the supporting frame and connected with the moving mechanism;
the electronic tag is used for recording the type of the sand mold to be operated and the coating process;
the tag reader is in wireless communication connection with the electronic tag;
the control mechanism is in communication connection with the coating device, the movement mechanism, the moving mechanism and the tag reader respectively;
the label reader is in wireless communication with the electronic label to obtain the type of the sand mold to be operated and the coating process, corresponding electric signals are transmitted to the control mechanism, the control mechanism controls the moving mechanism, the moving mechanism and the coating device according to the electric signals, the moving mechanism drives the moving mechanism to move to the corresponding operation station, the coating device starts coating, and the moving mechanism drives the mechanical arm to move.
2. A sand mold composite coating unit suitable for a flexible forming production line according to claim 1, wherein the moving mechanism comprises a lifting mechanism, the lifting mechanism comprises a lifting rod vertically arranged on the moving mechanism, a roller screw in transmission connection with the lifting rod, and a lifting motor for driving the roller screw to rotate; the lifting rod is connected with the manipulator, and the lifting motor is in communication connection with the control mechanism.
3. A sand mold composite coating unit suitable for a flexible forming production line according to claim 2, wherein the manipulator comprises two mechanical arms, and each mechanical arm is provided with a profiling fixing block;
the motion mechanism further comprises a turnover mechanism which is arranged in a one-to-one mode with the mechanical arm, the turnover mechanism comprises an upper chain wheel, a lower chain wheel, a chain and a turnover motor, the upper chain wheel and the lower chain wheel are arranged from top to bottom, the chain is arranged between the upper chain wheel and the lower chain wheel, the upper chain wheel is connected with an output shaft of the turnover motor, the lower chain wheel is connected with the profiling fixed block through a transmission shaft, and the turnover motor is in communication connection with the control mechanism.
4. A sand mold composite coating unit suitable for a flexible forming production line according to claim 3, wherein the moving mechanism further comprises an opening and closing mechanism, the opening and closing mechanism comprises a fixed plate connected with the lifting rod, and a first opening and closing driving oil cylinder and a second opening and closing driving oil cylinder which are fixed on the fixed plate, and the first opening and closing driving oil cylinder and the second opening and closing driving oil cylinder are arranged in a back-to-back manner;
the opening and closing mechanism further comprises a first connecting block and a second connecting block which are arranged corresponding to the two mechanical arms, the first connecting block is connected with the end part of a piston rod of the first opening and closing driving oil cylinder, and the first connecting block is further fixedly connected with the top end of the mechanical arm on the corresponding side; the second connecting block is connected with the end part of a piston rod of the second opening and closing driving oil cylinder, and the second connecting block is fixedly connected with the top end of the mechanical arm at the corresponding side.
5. A sand mold composite coating unit suitable for a flexible forming production line according to any one of claims 2 to 4, wherein the coating unit further comprises a conveying mechanism, the conveying mechanism comprises a conveying support and a conveying motor, conveying edge rollers are arranged on two sides of the conveying support, the conveying edge rollers are in transmission connection with the conveying motor, and the conveying motor is in communication connection with the control mechanism;
the label reader is arranged on the conveying bracket.
6. A sand mold composite coating unit suitable for a flexible forming production line according to claim 5, wherein the moving mechanism is a linear moving mechanism, and all the operation stations are arranged in line along the moving direction of the linear moving mechanism;
the linear moving mechanism comprises two linear guide rails arranged on the supporting frame, a moving base arranged between the two linear guide rails in a spanning mode, and a moving motor connected with the moving base, and the moving motor is in communication connection with the control mechanism;
the lifting mechanism is arranged on the movable base;
the conveying direction of the conveying support is perpendicular to the extending direction of the linear guide rail.
7. A sand mold composite coating unit suitable for a flexible forming production line according to claim 6, characterized in that the coating unit further comprises a tray for placing sand molds to be worked, and the electronic tag is arranged at the bottom of the tray.
8. A sand mold composite coating unit suitable for a flexible forming production line according to claim 5, wherein the coating unit comprises three operation stations, namely a curtain coating station, a spraying station and a dip coating station;
the spraying station comprises a plurality of spraying nozzles, and all the spraying nozzles are suspended above the middle position of the conveying bracket;
the curtain coating station comprises a plurality of curtain coating nozzles, and all the curtain coating nozzles are arranged on one side of the conveying support;
the dip-coating station comprises a dip-coating box, and the dip-coating box is arranged on the other side of the conveying support.
9. A sand mold composite coating unit suitable for a flexible forming line according to claim 4, wherein the coating unit further comprises a guide structure, the guide structure comprises a lifting guide assembly and/or an opening and closing guide assembly;
the lifting guide assembly comprises at least one vertically arranged vertical guide column, each vertical guide column is fixed on the moving mechanism, and the bottom end of each vertical guide column is connected with the fixed plate;
the opening and closing guide assembly comprises at least one horizontal guide column which is horizontally arranged, two ends of each horizontal guide column are respectively fixed on the fixed seat, and each horizontal guide column penetrates through the first connecting block and the second connecting block.
10. A sand mold composite coating unit suitable for a flexible forming production line according to claim 6, wherein the support frame comprises two horizontally arranged support beams, and one linear guide rail is arranged on each support beam;
the two sides of the movable base are respectively provided with a sliding block, and the sliding blocks are arranged on the corresponding linear guide rails.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111432218.0A CN114130967A (en) | 2021-11-29 | 2021-11-29 | Sand mold composite coating unit suitable for flexible forming production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111432218.0A CN114130967A (en) | 2021-11-29 | 2021-11-29 | Sand mold composite coating unit suitable for flexible forming production line |
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| CN114130967A true CN114130967A (en) | 2022-03-04 |
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| JP2001287009A (en) * | 2000-04-03 | 2001-10-16 | Robotech Co Ltd | Spraying device |
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| CN113601462A (en) * | 2021-08-11 | 2021-11-05 | 北京机科国创轻量化科学研究院有限公司 | Sand mold assembly workbench suitable for non-mold composite forming process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001287009A (en) * | 2000-04-03 | 2001-10-16 | Robotech Co Ltd | Spraying device |
| CN109423683A (en) * | 2017-08-30 | 2019-03-05 | 广东新会中集特种运输设备有限公司 | The finishing system of container and the coating process of container |
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