CN115647302B - Casting sand box and sand box demolding equipment - Google Patents
Casting sand box and sand box demolding equipment Download PDFInfo
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- CN115647302B CN115647302B CN202211588962.4A CN202211588962A CN115647302B CN 115647302 B CN115647302 B CN 115647302B CN 202211588962 A CN202211588962 A CN 202211588962A CN 115647302 B CN115647302 B CN 115647302B
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- 244000035744 Hura crepitans Species 0.000 title claims abstract description 94
- 238000005266 casting Methods 0.000 title claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000004576 sand Substances 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 19
- 230000009471 action Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 1
- 239000003110 molding sand Substances 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 18
- 230000000149 penetrating effect Effects 0.000 abstract description 10
- 230000009323 psychological health Effects 0.000 abstract description 4
- 238000009991 scouring Methods 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 65
- 230000000694 effects Effects 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 241000220317 Rosa Species 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Casting Devices For Molds (AREA)
Abstract
The invention relates to the technical field of casting equipment, and particularly discloses a casting sand box and sand box demolding equipment; the device comprises a box body and a cover plate, wherein the upper end and the lower end of an inner cavity of the box body are divided into a sand filling cavity and an air filling cavity by a partition plate, the lower surface of the partition plate is provided with a movable sealing plate in a laminating mode, a plurality of rows of through holes are formed in the partition plate, nail penetrating holes are formed in the movable sealing plate, a nail plate is arranged in the air filling cavity, the upper surface of the nail plate is connected with steel nails, the outer side surface of the box body is provided with a first high-pressure air plug and a second high-pressure air plug, the inner end of the first high-pressure air plug is connected with a first telescopic air cylinder, the inner end of the second high-pressure air plug is connected with a second telescopic air cylinder, and an exhaust pipe is arranged on the second telescopic air cylinder; the invention can avoid the condition that harmful gas is instantaneously discharged and sucked by operators in the demolding process, effectively ensures the physical and psychological health of the operators, can loosen the internal molding sand and the inner wall of the box body through the scouring action of high-pressure air flow, and is convenient for the subsequent demolding treatment.
Description
Technical Field
The invention relates to the technical field of casting equipment, and particularly discloses a casting sand box and sand box demolding equipment.
Background
The casting sand box is a casting forming tool most commonly used in a casting process, corresponding model cavities are pressed in the casting sand box by filling molding sand into the sand box and utilizing the characteristics of the molding sand, then molten metal is injected into the model cavities through a reserved pouring channel, after a period of cooling and shaping, the molding sand and a formed workpiece are taken out of the sand box together, and finally the molding sand and the workpiece are separated to obtain the casting workpiece.
At present, in the process of taking sand and taking pieces after casting the sand box, most of the sand box is suspended by adopting a crane or other lifting equipment, and then the sand box is manually taken down to be separated. However, the high-temperature molten metal can react with some impurities in the shell or the molding sand after being cast in the casting process, harmful gases such as CO, CO2, sulfur dioxide, toluene and the like are produced, and because the sealing property of the sand box is good, the inside harmful gases cannot volatilize in time, so that in the process of manually taking down the sand box, the inside of the sand box and the harmful gases on the molding sand are rapidly dispersed in a short time, and the physical and psychological health of operators is seriously influenced by long-time inhalation of the harmful gases. In addition, the whole sand box is lifted by adopting a crane or other lifting equipment, and then in the process of taking down the sand box, the labor intensity of operators is high, and the risk of being damaged by falling and smashing of the sand box easily exists. Based on a series of problems existing in the process of manually taking molding sand and a molded workpiece out of a sand box after casting by using the existing sand box, the application provides a casting sand box and sand box demolding equipment capable of effectively solving the technical problems.
Disclosure of Invention
The invention aims to provide a casting sand box and sand box demolding equipment, which are used for solving the defects that the physical and psychological health of an acting person is affected due to the fact that harmful gas is rapidly dispersed in a short time when the existing casting sand box is demolded, and potential safety hazards exist when a crane is lifted for demolding.
The invention is realized by the following technical scheme:
The utility model provides a casting sand box, includes box and apron, the inner chamber upper and lower end of box divide into sand filling chamber and inflating chamber by the baffle, the laminating of lower surface of baffle is provided with the removal shrouding, a plurality of rows of through-holes have been seted up on the baffle, set up the through-pin hole corresponding with every row of through-hole on the removal shrouding, and remove the shrouding and make through-hole and through-pin hole dislocation set under the effect of elastic component, be connected with the nail board through the crane of vertical lift in the inflating chamber, the upper surface of nail board is connected with the steel nail that aligns from top to bottom with the through-hole, the lateral surface of box is provided with first high-pressure gas cartridge and second high-pressure gas cartridge, the inner of first high-pressure gas cartridge is connected with the first flexible cartridge that acts on the crane, the inner of second high-pressure gas cartridge is connected with the second that acts on the removal shrouding makes through-hole and through-pin alignment flexible, be provided with the blast pipe in the inflating chamber with gas exhaust in the second flexible.
As a further arrangement of the scheme, guide grooves are formed in the two ends of the lower surface of the partition plate, and the two ends of the movable sealing plate extend into the guide grooves.
As a specific setting of the scheme, the lifting frame is a fork lifting frame, the first telescopic inflator is horizontally fixed in the inflating cavity, and a piston rod inside the first telescopic inflator is connected with the fork lifting frame.
As the concrete setting of above-mentioned scheme, the flexible inflator of second is fixed in the inflating chamber, the inside of the flexible inflator of second is provided with sealed piston, be connected with the catch bar that stretches out the flexible inflator of second on the sealed piston, the top of catch bar is connected with trapezoidal piece, the inclined plane notch with trapezoidal piece looks adaptation has been seted up to the side of removing the shrouding.
When the casting sand box is used for casting, through holes on the partition plate are sealed through the movable sealing plate, the normal casting use process of the casting sand box is not affected, when casting cooling is needed, high-pressure gas can be respectively introduced into the first high-pressure gas plug-in connector and the second high-pressure gas plug-in connector, the second telescopic air cylinder is driven under the action of the high-pressure gas to act on the movable sealing plate, the through holes on the partition plate are aligned with the nail penetrating holes on the movable sealing plate, then the lifting frame is vertically lifted under the action of the first telescopic air cylinder, and steel nails on the nail plate penetrate through the nail penetrating holes and the through holes and a plurality of air holes are formed in the lower surface of molding sand in the lifting process of the lifting frame. Then resetting the lifting frame, introducing high-pressure gas into the second telescopic air cylinder, enabling the high-pressure gas to enter the air inflation cavity through the exhaust pipe, enabling the air pressure in the air inflation cavity to be increased, enabling the high-pressure gas to enter air holes in the molding sand and gaps between the molding sand and the inner wall of the sand filling cavity through the nail holes and the through holes, enabling harmful gas generated in the casting process and remained in the sand filling cavity and the molding sand to be completely discharged under the continuous scouring action of the high-pressure gas, and avoiding human body injury caused by inhalation of operators when the harmful gas is instantaneously discharged in the follow-up demolding process. In addition, the gap between the molding sand and the inner wall of the sand filling cavity can reduce the bonding effect between the molding sand and the inner wall of the sand filling cavity through the scouring of high-pressure gas, so that the follow-up demolding treatment is facilitated.
The invention also discloses sand box demolding equipment for the casting sand box, which comprises a conveyor base, a sand box conveying mechanism, a high-pressure gas compressor, a gas absorption unit and sand box vibrating devices, wherein the sand box conveying mechanism is arranged in the conveyor base, the high-pressure gas compressor and the gas absorption unit are arranged on the front side and the rear side of the same station of the conveyor base, and the sand box vibrating devices are arranged at the downstream stations of the high-pressure gas compressor and the gas absorption unit;
The high-pressure gas compressor is connected with a high-pressure gas hose, the end part of the high-pressure gas hose is connected with two air tap plugs which respectively correspond to the first high-pressure gas plug and the second high-pressure gas plug, and each air tap plug is provided with an air valve.
As the concrete setting of above-mentioned scheme, the gas absorption unit is including setting up suction hood and rose box, the suction hood sets up directly over sand box conveying mechanism, and is connected through the exhaust tube between suction hood and the rose box, still be provided with the aspiration pump on the rose box.
As the concrete setting of above-mentioned scheme, sand box conveying mechanism includes two closed-loop type driving medium of front and back parallel arrangement, the surface of closed-loop type driving medium is connected with a plurality of box cassette of group through the polyurethane connecting seat.
As the concrete setting of above-mentioned scheme, sand box vibrating device is including fixing the fixed bolster on the conveyer frame, be connected with the xarm that reciprocates on the fixed bolster through flexible driving piece, both ends are provided with the movable block that removes each other or keep away from about the xarm, be connected with splint through polyurethane portion on the movable block, be provided with vibrating motor on the splint.
As the concrete setting of above-mentioned scheme, offer the lateral shifting groove on the xarm, and be provided with two-way lead screw in the lateral shifting groove, the tip of xarm is provided with the lead screw motor that two-way lead screw is connected, offer on the movable block with two-way lead screw assorted screw hole.
As a further arrangement of the scheme, the vibrating motor is arranged on the outer side face of the clamping plate, and the inner side face of the frame plate is also provided with a rubber flexible layer.
The sand box demolding equipment disclosed by the invention is designed based on the special improvement of the casting sand box, when the cast sand box is demolded, the sand box demolding equipment is placed on the sand box conveying mechanism to be conveyed along with the sand box conveying mechanism, when the casting sand box is conveyed to the positions of the high-pressure gas compressor and the gas absorbing unit, the high-pressure gas generated by the high-pressure gas compressor is utilized to wash the interior of the casting sand box, so that harmful gas in the casting sand box is discharged along with the high-pressure gas, and in the discharging process, the harmful gas is conveyed into the filter box through the negative pressure adsorption effect of the gas absorbing unit and is discharged after being filtered, thereby effectively ensuring that no harmful gas exists in a workshop environment. The casting sand box after being flushed by the high-pressure gas enters the station of the sand box vibrating device along with the sand box conveying mechanism, the casting sand box is clamped by the sand box vibrating device, and then the vibrating motor is started to vibrate the casting sand box at high frequency, so that the molding sand in the casting sand box is completely separated from the inside of the box body, and the demolding process can be realized by reversely buckling the casting sand box.
Advantageous effects
According to the casting sand box disclosed by the invention, through the internal structural design, the sand filling cavity can be continuously flushed by utilizing the high-pressure gas when the casting sand box is required to be demolded, so that harmful gas generated and remained in the casting process can be removed under the flushing action of the high-pressure gas, the situation that the harmful gas is instantaneously discharged and inhaled by operators in the subsequent demolding process is avoided, and the physical and psychological health of the operators is effectively ensured. Meanwhile, the inner molding sand and the inner wall of the box body can be loosened through the scouring action of high-pressure air flow, so that the follow-up demolding treatment is convenient.
The invention also provides demolding equipment based on the casting sand box, and the demolding equipment can realize the pipelining operation of the casting sand box, so that the demolding efficiency of the casting sand box is effectively improved, and the high-pressure gas flushing and the negative-pressure adsorption filtration can be sequentially carried out in the demolding process of the sand box, so that the environment of a demolding workshop is effectively improved; in addition, the casting sand box is vibrated at high frequency through the sand box vibrating device, so that the separation effect between the sand box and molding sand is improved, the sand box can be separated only by reversely buckling the sand box in the follow-up demolding process, and the demolding effect is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a casting flask according to the present invention;
FIG. 2 is a schematic view showing an internal perspective structure of a casting flask according to the present invention;
FIG. 3 is a schematic perspective view of a separator plate and a movable seal plate according to the present invention;
FIG. 4 is a schematic plan view of a separator plate and a movable seal plate according to the present invention;
FIG. 5 is a schematic plan view of the inside of the second telescopic inflator according to the present invention;
FIG. 6 is a schematic view of a first angular perspective of a demolding apparatus of the present invention;
FIG. 7 is a schematic view of a second angular perspective of a demolding apparatus of the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 6A according to the present invention;
FIG. 9 is an enlarged schematic view of the structure of FIG. 6B according to the present invention;
Fig. 10 is a schematic perspective view of a vibrating device for a sand box according to the present invention.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The present application will be described in detail with reference to fig. 1 to 10, and examples thereof.
Example 1
Embodiment 1 discloses a casting sand box, referring to fig. 1-5, the main body of the casting sand box comprises a box body 1 and cover plates 2, an upper end opening of the box body 1 is arranged, and two cover plates 2 are rotatably connected at two ends of the opening of the box body 1 through hinges. A partition plate 3 is fixedly provided in the middle of the tank 1, and the upper and lower ends of the tank 1 are divided into a sand filling chamber 101 and an air filling chamber 102 by the partition plate 3. In the casting process, molding sand and a workpiece shell are filled into the sand filling cavity 101 to prepare a model cavity, and then molten metal is poured into the model cavity to cool and shape the model cavity, so that a cast workpiece is obtained.
The movable sealing plate 4 is attached to the lower surface of the partition plate 3, guide grooves 301 are formed in the two ends of the lower surface of the partition plate 3 in order to ensure that the movable sealing plate 4 is tightly attached to the partition plate 3 in the whole process, and then the two ends of the movable sealing plate 4 are arranged in the guide grooves 301. A plurality of rows of through holes 302 are formed in the partition plate 3, nail penetrating holes 401 corresponding to each row of through holes 302 are formed in the movable sealing plate 4, and a spring piece 5 is connected between one end of the movable sealing plate 4 and the inner wall of the box body 1, so that the nail penetrating holes 401 on the movable sealing plate 4 and the corresponding row of through holes 302 are arranged in a staggered mode under the action of the spring piece 5.
A nail plate 6 is arranged in the inflation cavity 102 below the movable sealing plate 4, steel nails 601 aligned up and down with each through hole 302 are connected to the upper surface of the nail plate 6, and a fork lift 7 is connected to the lower surface of the nail plate 6, so that the nail plate 6 can be pushed vertically upwards under the action of the fork lift 7.
The first telescopic air cylinder 8 which is horizontally arranged is fixed in the air inflation cavity 102, a piston rod at the inner end of the first telescopic air cylinder 8 is connected with the fork type lifting frame 7, a first high-pressure air plug 9 is connected to the outer end of the first telescopic air cylinder 8 extending out of the box body 1, an external high-pressure air source is externally connected through the first high-pressure air plug 9, and then the piston rod of the first telescopic air cylinder 8 is pushed to the direction of the fork type lifting frame 7 under the action of the high-pressure air source, so that the vertical lifting process of the whole fork type lifting frame 7 is realized.
Meanwhile, a second telescopic air cylinder 10 which is vertically arranged is fixed in the air inflation cavity 102, the lower end of the second telescopic air cylinder 10 is connected with a second high-pressure air plug 11 which is arranged at the outer end of the box body 1 through an air pipe, a sealing piston 12 is arranged in the second telescopic air cylinder 10, a pushing rod 121 which extends out of the upper end of the second telescopic air cylinder 10 is connected to the sealing piston 12, a trapezoid block 122 is connected to the upper end of the pushing rod 121, an inclined plane notch 402 which is matched with the trapezoid block 122 is formed in the end part of the movable sealing plate 4, the sealing piston 12, the pushing rod 121 and the trapezoid block 122 are enabled to move upwards under the action of the high-pressure air source through the second high-pressure air plug 11, and the whole movable sealing plate 4 can be pushed to move on the lower surface of the partition plate 3 through the action between the trapezoid block 122 and the inclined plane notch 402, so that a nail penetrating hole 401 on the movable sealing plate 4 is aligned with a through hole 302 on the partition plate 3. In addition, an exhaust pipe 123 is further provided at the upper end of the second telescopic air cylinder 10, the sealing piston 12 moves to the position of the exhaust pipe 123 along the second telescopic air cylinder 10, at this time, high-pressure air in the second telescopic air cylinder 10 enters the inflation cavity 102 through the exhaust pipe 123, and at this time, the moving seal plate 4 can be kept still all the time, so that the nail penetrating hole 401 and the through hole 302 are always in an aligned state.
After cooling and shaping the molten metal, the casting sand box disclosed in this embodiment 1 is connected with an external high-pressure air source through the second high-pressure air plug 11, so that the push rod and the trapezoid block connected to the second telescopic air cylinder 10 can move upwards under the action of the high-pressure air, and then the trapezoid block and the inclined plane notch 402 on the movable sealing plate 4 drive the movable sealing plate 4 to move on the lower surface of the partition plate 3, so that all the nail penetrating holes 401 are aligned with the through holes 302.
Then the first high-pressure air plug 9 is connected with an external high-pressure air source, a piston rod at the inner end of the second telescopic air cylinder 10 can be extended under the action of high-pressure air, so that the whole fork-lift frame 7 is pushed to move upwards, steel nails 601 on the nail plate 6 can enter the sand filling cavity 101 through corresponding nail penetrating holes 401 and through holes 302 in the process of upward movement of the fork-lift frame 7, and a plurality of air holes are formed in the lower surface of molding sand by the steel nails 601.
After the air holes are formed, the high-pressure air source on the first high-pressure air plug 9 is closed, meanwhile, the inflow of high-pressure air in the second high-pressure air plug 11 is continuously kept, after the high-pressure air enters the inflation cavity 102 through the exhaust pipe 123 on the second telescopic air cylinder 10, the air enters the sand filling cavity 101 through the nail penetrating holes 401 and the through holes 302 along with the gradual increase of the internal air, so that part of the air enters the sand through the air holes on the lower surface of the sand, the other part of the air enters a gap between the sand and the inner wall of the sand filling cavity 101, harmful gas generated in the casting process and remained in the sand filling cavity 101 can be fully discharged under the flushing of the high-pressure air for a period of time, meanwhile, the adhesion effect between the sand and the inner wall of the sand filling cavity 101 is reduced under the flushing of the high-pressure air, and the subsequent demoulding treatment is easy.
Example 2
Example 2 discloses an apparatus for stripping a casting flask as disclosed in example 1, and referring to fig. 6 to 10, the main body of the stripping apparatus includes a conveyor base 13, a flask transfer mechanism 14, a high-pressure gas compressor 15, a gas absorbing unit 16, and a flask vibrating device 17.
The sand box conveying mechanism 14 comprises two closed-loop transmission members 141 which are arranged on the front side and the rear side of the conveyor base 13 and are parallel to each other, the closed-loop transmission members can be conveyor chains or conveyor belts, corresponding driving wheels are further arranged at two ends of the closed-loop transmission members 141, and a driving motor 142 connected with the driving wheels is arranged at the end part of the conveyor base 13. The outer side surfaces of the two closed-loop transmission pieces 141 are provided with a plurality of groups of box clamping seats 143 at equal intervals, the box clamping seats 143 are connected with the closed-loop transmission pieces 141 through polyurethane connecting seats 144, and in the casting sand box transmission process, the front end and the rear end of the lower surface of the casting sand box are respectively arranged on the box clamping seats 143 on the two closed-loop transmission pieces 141 to carry.
The high-pressure gas compressor 15 and the gas absorbing unit 16 in this embodiment are respectively arranged on the front side and the rear side of the machine base 13, and are arranged corresponding to the same station. The high-pressure gas compressor 15 is connected with a high-pressure gas hose 151, two air tap plugs 152 are connected to the end of the high-pressure gas hose 151, the two air tap plugs 152 are respectively matched with the corresponding first high-pressure gas plug 9 and the second high-pressure gas plug 11, and then the two air tap plugs 152 are respectively provided with a pressing air valve 153. After the two air tap plugs 152 are respectively inserted into the first high-pressure air plug 9 and the second high-pressure air plug 11, the pressing air valve 153 can be operated to control the flow of the air path. The gas absorbing unit 16 includes a suction hood 161 provided directly above the flask transfer mechanism 14 and a filter box 162 provided at the rear side of the conveyor base 13, an exhaust pipe 163 is connected to the upper end of the suction hood 161, the end of the exhaust pipe 163 is connected to the filter box 162, and finally an exhaust pump 164 is provided at the lower end of the filter box 162. In the process of flushing and discharging the harmful gas in the casting sand box by the high-pressure gas compressor 15, the suction pump 164 is synchronously started so that the suction cover 161 can suck the harmful gas discharged in the casting sand box into the filter box 162 for filtering, and the harmful gas is prevented from endangering the physical and mental health of operators during manual demolding.
The flask vibration device 17 is provided downstream of the high-pressure gas compressor 15 and the gas absorbing unit 16, and includes a fixing bracket 171 fixed to the conveyor base 13, a longitudinal slide rail 172 provided on an upper surface of the fixing bracket 171, a cross arm 173 slidably provided on the longitudinal slide rail 172, and a telescopic pusher 174 fixedly installed on the fixing bracket 171, and connecting the telescopic pusher 174 to the cross arm 173 so that the cross arm 173 can be moved forward and backward along the longitudinal slide rail 172 by the telescopic pusher 174. The cross arm 173 is provided with a lateral movement groove, a bidirectional screw rod 175 is arranged in the lateral movement groove, and a screw rod motor 176 connected with the bidirectional screw rod 175 is arranged at one end of the cross arm 173. Moving blocks 177 are arranged at two ends of the transverse moving groove, threaded holes matched with the bidirectional screw rods 175 are formed in the moving blocks 177, clamping plates 179 are connected to the front end of each moving block 177 through polyurethane parts 178, and vibration motors 180 are arranged on the outer side faces of the clamping plates 179. In order to prevent the clamping plates 179 from scratching the both side surfaces of the casting flask, a rubber flexible layer 181 is provided on the inner side surface of the clamping plates 179.
When the sand box vibrating device 17 is operated, the transverse arm 173 is pushed towards the direction of the casting sand box through the action of the telescopic pushing piece 174, so that the casting sand box is located between the two clamping plates 179, then the screw rod motor 176 is started, the two clamping plates 179 move close to each other and are clamped with the two side surfaces of the casting sand box through the rubber flexible layer 181 under the action of the bidirectional screw rod 175 and the moving block 177, and then the vibrating motor 180 is started again to vibrate the casting sand box, so that molding sand in the casting sand box is separated from the inner cavity wall, and the follow-up demolding treatment is facilitated.
Finally, in this embodiment 2, an inclined guide block 19 is further disposed at the end of the conveyor base 13, so that the casting sand box after the degassing and vibration treatment moves to the position of the inclined guide block 19 under the action of the sand box conveying mechanism 14, and then the casting sand box moves downwards along the inclined guide block 19, and is manually turned 180 ° in the blanking process and then is directly buckled on the ground, so that the internal molding sand and the casting piece are directly separated from the box body, and the demolding effect is achieved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The casting sand box comprises a box body and a cover plate, and is characterized in that the upper end and the lower end of an inner cavity of the box body are divided into a sand filling cavity and an air filling cavity by a partition plate, a movable sealing plate is arranged on the lower surface of the partition plate in a fitting mode, a plurality of rows of through holes are formed in the partition plate, through nail holes corresponding to each row of through holes are formed in the movable sealing plate, the through holes and the through nail holes are arranged in a staggered mode under the action of an elastic piece through the movable sealing plate, a nail plate is connected in the air filling cavity through a vertically lifting frame, steel nails aligned with the through holes up and down are connected to the upper surface of the nail plate, a first high-pressure air plug and a second high-pressure air plug are arranged on the outer side face of the box body, a first telescopic air cylinder acting on the lifting frame is connected to the inner end of the first high-pressure air plug, a second telescopic air cylinder acting on the movable sealing plate to align the through holes with the through nails is connected to the inner end of the second telescopic air cylinder, and the second telescopic air cylinder is arranged in the air filling cavity;
the sand box demolding device for the casting sand box comprises a conveyor base, a sand box conveying mechanism, a high-pressure gas compressor, a gas absorption unit and a sand box vibration device, wherein the sand box conveying mechanism is arranged in the conveyor base, the high-pressure gas compressor and the gas absorption unit are arranged on the front side and the rear side of the same station of the conveyor base, and the sand box vibration device is arranged at the downstream station of the high-pressure gas compressor and the gas absorption unit;
The high-pressure gas compressor is connected with a high-pressure gas hose, the end part of the high-pressure gas hose is connected with two air tap plugs which respectively correspond to the first high-pressure gas plug and the second high-pressure gas plug, and each air tap plug is provided with an air valve.
2. The casting flask according to claim 1, wherein guide grooves are formed in both ends of the lower surface of the partition plate, and both ends of the movable closing plate are provided to extend into the guide grooves.
3. The casting flask as claimed in claim 1, wherein the lifting frame is a fork lift, the first telescopic cylinder is horizontally fixed in the air-inflating chamber, and a piston rod inside the first telescopic cylinder is connected to the fork lift.
4. The casting sand box of claim 1, wherein the second telescopic air cylinder is fixedly arranged in the air inflation cavity, a sealing piston is arranged in the second telescopic air cylinder, a pushing rod extending out of the second telescopic air cylinder is connected to the sealing piston, a trapezoid block is connected to the top end of the pushing rod, and an inclined plane notch matched with the trapezoid block is formed in the side end of the movable sealing plate.
5. A flask stripping apparatus for casting flasks according to any one of claims 1-4, characterized in that the gas absorbing unit comprises a suction hood and a filter box, the suction hood is arranged right above the flask conveying mechanism, the suction hood and the filter box are connected through a suction pipe, and a suction pump is further arranged on the filter box.
6. The apparatus for stripping a flask for casting according to claim 5, wherein said flask transfer mechanism comprises two closed-loop type transmission members disposed in parallel front and rear, and the outer surfaces of said closed-loop type transmission members are connected with a plurality of sets of flask holders by urethane connection holders.
7. The apparatus for stripping a flask for casting according to claim 6, wherein said flask vibrating means comprises a fixed support fixed to said conveyor base, said fixed support is connected with a cross arm moving forward and backward by a telescopic driving member, left and right ends of said cross arm are provided with moving blocks moving away from each other or away from each other, said moving blocks are connected with a clamping plate by a polyurethane portion, and said clamping plate is provided with a vibrating motor.
8. The flask stripping apparatus for casting flasks according to claim 7, wherein the cross arm is provided with a transverse moving groove, a bidirectional screw rod is arranged in the transverse moving groove, the end of the cross arm is provided with a screw rod motor connected with the bidirectional screw rod, and the moving block is provided with a threaded hole matched with the bidirectional screw rod.
9. The apparatus for stripping a flask for casting a flask as recited in claim 7, wherein said vibration motor is provided on an outer side surface of a clamp plate, and an inner side surface of said frame plate is further provided with a rubber flexible layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211588962.4A CN115647302B (en) | 2022-12-12 | 2022-12-12 | Casting sand box and sand box demolding equipment |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108854462A (en) * | 2018-06-15 | 2018-11-23 | 潍坊市宝利丰机械科技有限公司 | A kind of casting production waste gas absorption processing unit |
| CN111590025A (en) * | 2020-07-10 | 2020-08-28 | 定州东方铸造有限公司 | Exhaust structure of casting mold of mechanical counterweight frame |
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| US3556195A (en) * | 1968-06-14 | 1971-01-19 | Pettibone Mulliken Corp | Apparatus and method for making foundry and articles |
| CN207205203U (en) * | 2017-09-19 | 2018-04-10 | 邯郸慧桥复合材料科技有限公司 | A kind of iron sand molding flask |
| CN213856960U (en) * | 2020-11-25 | 2021-08-03 | 江苏腾业特种有色金属科技有限公司 | Special sand box for anchor rod of ship |
| CN214349460U (en) * | 2020-12-03 | 2021-10-08 | 重庆银河铸锻有限责任公司 | Casting mold box capable of discharging waste gas directionally |
| CN112916848B (en) * | 2021-01-26 | 2022-06-28 | 康硕(山西)智能制造有限公司 | Aluminum alloy lost foam casting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854462A (en) * | 2018-06-15 | 2018-11-23 | 潍坊市宝利丰机械科技有限公司 | A kind of casting production waste gas absorption processing unit |
| CN111590025A (en) * | 2020-07-10 | 2020-08-28 | 定州东方铸造有限公司 | Exhaust structure of casting mold of mechanical counterweight frame |
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