CN112059922B - Sand blasting device for surface of continuous casting grid - Google Patents
Sand blasting device for surface of continuous casting grid Download PDFInfo
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- CN112059922B CN112059922B CN202010920668.3A CN202010920668A CN112059922B CN 112059922 B CN112059922 B CN 112059922B CN 202010920668 A CN202010920668 A CN 202010920668A CN 112059922 B CN112059922 B CN 112059922B
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- grid
- ejector rod
- sand blasting
- rack
- ejector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
- B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
- B24C3/12—Apparatus using nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
- B24C3/083—Transfer or feeding devices; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention relates to a continuous casting grid surface sand blasting device which comprises a plurality of spray guns, a sand blasting chamber and a grid conveying mechanism, wherein each spray gun comprises a shell provided with a nozzle and a grinding material input pipe, the discharging end of each spray gun penetrates through the shell, the shell is provided with a spray gun part air inlet, the discharging end of each grinding material input pipe is provided with a grinding material output port, the opening direction of each grinding material output port is the same as the opening direction of each nozzle, the left end of each sand blasting chamber is provided with a grid input port, the right end of each sand blasting chamber is provided with a grid output port, the grid conveying mechanism is used for outputting grids from the grid output ports after the grids are input into the sand blasting chamber through the grid input ports, the spray guns are located in the sand blasting. The invention aims to provide a continuous casting grid surface sand blasting device for blasting sand on the surface of a grid manufactured by a continuous casting molding process, which is used for solving the problem that the grid manufactured by the casting molding process is not beneficial to lead plaster combination.
Description
Technical Field
The invention relates to the technical field of storage battery production, in particular to a sand blasting device for the surface of a continuous casting grid.
Background
In the production and manufacturing process of the lead-acid storage battery, the plate grids are the frameworks of the positive and negative plates of the storage battery and are equivalent to human bones. And coating lead paste on the grid to prepare the polar plate. The traditional grid production process is formed by gravity casting, an advanced continuous casting forming process is introduced in the grid manufacturing process in the storage battery industry at present, but a small amount of demolding oil can be remained on the surface of the grid produced by the continuous casting forming process, the surface smoothness of the grid is too high, the combination of lead paste and the grid is not facilitated, and the lead paste falling phenomenon can occur in the discharging process of the storage battery, so that the service life of the battery is influenced.
Disclosure of Invention
The invention aims to provide a continuous casting grid surface sand blasting device for blasting sand on the surface of a grid manufactured by a continuous casting molding process, which is used for solving the problem that the grid manufactured by the casting molding process is not beneficial to lead plaster combination.
The technical problem is solved by the following technical scheme: the utility model provides a continuous casting grid surface sand blasting unit, includes a plurality of spray guns, sandblast room and grid conveying mechanism, the abrasive material input tube in the shell is worn to establish by the spray gun including shell and the discharge end that is equipped with the spout, the shell is equipped with spray gun portion inlet port, the discharge end of abrasive material input tube is equipped with the abrasive material delivery outlet, the opening direction of abrasive material delivery outlet with the opening direction of spout is the same, the left end of sandblast room is equipped with the grid input port, the right-hand member is equipped with the grid delivery outlet, grid conveying mechanism is used for passing through the grid again after grid input sandblast room follow grid delivery outlet output, the spray gun is located in the sandblast room, the spray gun is used for when the grid spout the abrasive material to the grid on the surface. When the grid sand blasting machine is used, a grid is input into the sand blasting chamber through the grid input port through the grid conveying mechanism and then output from the grid output port, and when the grid passes through the sand blasting chamber, a spray gun in the sand blasting chamber can convey abrasive materials to sand blast the surface of the grid, so that the bonding effect of the grid and lead paste is achieved. The process of spraying the grinding material on the grid by the spray gun comprises the following steps: the abrasive storage tank is connected with the frosted input hole, the compressed air source is connected with the air inlet pipe, compressed air flows at a high speed in the shell when being output from the air outlet to form negative pressure to generate an injection effect, the abrasive is possibly sucked into the shell through abrasive input, and then the abrasive flows to the surface of the grid along with the compressed air flow through high-speed ejection of the compressed air from the air injection.
Preferably, the conveying mechanism comprises a plurality of carrier rollers extending in the front-back direction and used for supporting the grid, and a carrier roller driving mechanism for driving the carrier rollers to rotate, and the spray guns are arranged above and below the carrier rollers. When the device is used, the grid is horizontally placed on the carrier roller for conveying, spray guns are required to be arranged on the upper side and the lower side of the conveying price, and abrasive materials on the upward surface can fall onto the grid again after splashing when the abrasive materials are shot to the grid for blasting sand, so that the phenomenon that a sand blasting layer falls off can affect the bonding reliability of lead plaster.
Preferably, the grid conveying mechanism comprises a grid input conveying belt, a grid output conveying belt and a grid transfer mechanism for clamping two ends of the grid in the length direction and transferring the grid from the grid input conveying belt to the grid output conveying belt, wherein the grid input conveying belt is in butt joint with the grid input port, and the grid output conveying belt is in butt joint with the grid output port; the grid transfer mechanism comprises a driving frame, a double-stroke cylinder and two sliding rails, wherein the double-stroke cylinder drives the driving frame to move along the left-right direction, the two sliding rails are distributed on two sides of the sand blasting chamber along the front-back distribution direction, the sliding rails extend along the left-right direction, the driving frame is connected with two sliding seats which are in one-to-one correspondence sliding connection with the two sliding rails, the feeding end of the grid output conveying belt and the blanking end of the grid input conveying belt are positioned between the two sliding rails, ejector rods extending along the front-back direction, ejector rod translation cylinders driving the ejector rods to move on the sliding seats along the front-back direction and an ejector rod rotating mechanism driving the ejector rods to rotate are arranged on the sliding seats in a penetrating mode, the ejector rods on the two sliding; the automatic plate grid feeding device is characterized in that a feeding station, a sand blasting station and a discharging station are arranged on the slide rail, the slide seat is located at the feeding station, the ejector rod is aligned with a plate grid on the discharging end of the plate grid input conveying belt, the slide seat is located at the sand blasting station, the opening direction line of the nozzle and the axis of the ejector rod are located on the same plane, and the ejector rod is aligned with a plate grid on the feeding end of the plate grid output conveying belt when the slide seat is located at the discharging station. According to the technical scheme, when the double-stroke cylinder is in a contraction state, the sliding seat is located on the feeding station, when the double-stroke cylinder extends out one stroke, the sliding seat is located on the sand blasting station, and when the double-stroke cylinder extends out two strokes, the sliding seat is located on the discharging station. When the device is used, the grid is conveyed to the blanking end of the grid input conveyer belt rightwards by the grid input conveyer belt in a mode that the length direction extends along the front-back direction (namely the width direction of the grid input conveyer belt extends), and the grid input conveyer belt is aligned with a feeding station; the double-stroke cylinder extends for a stroke to enable the sliding seat to be positioned on a sand blasting station, the grid rotates by taking the ejector rod as a shaft under the action of the ejector rod rotating mechanism, and meanwhile, the spray gun sprays abrasive materials on the grid; after the sand blasting is finished, two strokes of the double-stroke cylinder extend out to enable the sliding seat to move to a blanking station, at the moment, the grid is clamped by the ejector rod and moves to the grid output conveyor belt, and the ejector rod loosens the clamping effect on the grid, so that the grid falls onto the grid output conveyor belt and is conveyed away. The utility model provides a concrete technical scheme of grid conveying mechanism, this scheme can enough accomplish the sandblast of two surfaces of grid thickness direction and two terminal surfaces of width direction as long as set up the spray gun in one side of grid, can enough reduce spray gun quantity like this, can solve the problem that the terminal surface of current sandblast in-process well grid width direction can not be sandblasted moreover.
Preferably, the ejector rod rotating mechanism comprises an outer gear ring arranged on the ejector rod and extending along the circumferential direction of the ejector rod, a vertically extending rack for driving the outer gear ring, and a rack driving cylinder for driving the rack to lift, wherein the outer gear ring only surrounds the ejector rod for 270 degrees; when the sliding seat is positioned at the feeding station, the rack is disengaged from the outer gear ring, the teeth at the lowermost end of the rack are positioned below a horizontal plane passing through the axis of the ejector rod, a gap between the head end and the tail end of the outer gear ring faces the rack, the head end of the outer gear ring is positioned on one side, facing the rack, of a vertical plane passing through the axis of the ejector rod and is positioned on the upper side of the ejector rod, the number of the teeth on the part, facing the rack, of the vertical plane passing through the axis of the ejector rod is more than 1, and the ejector rod and the rack are positioned on the left side and the right side of the center line of the width direction of the grid on the feeding; when the ejector rod rotates under the action of the weight of the grid to the head end of the outer gear ring and is meshed with the rack, the rack driving cylinder drives the rack to descend so that the rack drives the ejector rod to rotate through the outer gear ring, when the ejector rod rotates to separate the outer gear ring from the rack, the rack driving cylinder drives the rack to reset, when the ejector rod rotates to separate the outer gear ring from the rack, the head end of the outer gear ring is located on one side, facing the rack, of a vertical plane passing through the axis of the ejector rod and located on the upper side of the ejector rod, and the moment when the rack resets to the place is earlier than the moment when the ejector rod rotates under the action of the weight of. Provides a concrete technical proposal of the mandril rotating mechanism. The technical scheme that the ejector rod and the rack are positioned on the left side and the right side of the center line in the width direction of the grid on the blanking end of the grid input belt can enable the grid to rotate to a vertical state (namely can rotate 90 degrees) by taking the ejector rod as a shaft under the action of the self weight when the grid input conveying belt loses the support effect on the grid (namely the grid is suspended), and then the technical scheme that when the sliding seat is positioned at the feeding station, the rack is disengaged from the outer gear ring, the teeth at the lowermost end of the rack are positioned below a horizontal plane passing through the axis of the ejector rod, a gap between the head end and the tail end of the outer gear ring faces the rack, the head end of the outer gear ring is positioned on one side of the vertical plane passing through the axis of the ejector rod, the vertical plane passing through the axis of the ejector rod faces one side of the ejector rod and is positioned on the upper side of the ejector rod, and the number of the teeth on the part, then when the ejector rod rotates to the head end of the outer gear ring to be meshed with the rack under the action of the weight of the grid, the rack driving cylinder drives the rack to descend so that the rack drives the movable ejector rod to rotate through the outer gear ring, the rack driving cylinder drives the rack to reset when the ejector rod rotates to the state that the outer gear ring is disengaged from the rack, the head end of the outer gear ring is located on one side, facing the rack, of a vertical plane passing through the axis of the ejector rod and located on the upper side of the ejector rod when the ejector rod rotates to the state that the head end of the outer gear ring is meshed with the rack, and the moment when the rack resets to the position is earlier than the moment when the ejector rod rotates to the state that the head end of the outer gear ring is meshed with the rack under the action of the weight of the grid.
Preferably, the ejector rod rotating mechanism further comprises an engagement state detection device for detecting whether the rack is engaged with the outer gear ring or not, the engagement state detection device comprises a plurality of press switches, press heads of the press switches are connected with slats extending along the extension direction of the rack, the slats are connected with a plurality of driving pins extending along the depth direction of tooth grooves of the rack, the driving pins are distributed along the extension direction of the rack, and one driving pin penetrates through each tooth groove of the rack. When the pressing heads of all the press switches are not pressed, the rack is not meshed with the outer gear ring, namely, the rack is disengaged, and when the pressing heads of any one press switch are pressed to cause the on-off state of the press switch to change, the outer gear ring is meshed with the rack. The automatic control of the rack action can be realized.
The invention also comprises a grid positioning stop block which is positioned at the right end of the grid input conveying belt and used for stopping the grid on the grid input conveying belt from moving rightwards, the driving frame is connected with the sand blasting chamber through a driving frame lifting cylinder, a cylinder body of the double-stroke cylinder is provided with a lifting guide rod which is arranged on a cylinder connecting plate in a penetrating way, and the cylinder connecting plate is connected with the sand blasting chamber; when the sliding seat is located at the feeding station, the ejector rod is located on the right side of the center line of the grid in the width direction of the blanking end of the grid input belt, and the right end of a grid clamped by the ejector rod on the grid input conveying belt is higher than the grid positioning stop block when the driving frame is driven by the driving frame lifting air cylinder to be in a lifting state. The grid transfer mechanism can be used for reliably positioning the grid, and the grid can pass over the grid positioning stop block when the grid is conveyed by the grid transfer mechanism.
Preferably, the slide rail is provided with a slide groove extending along the left-right direction, the sliding seat is provided with a sliding block arranged in the slide groove in a penetrating mode, the sliding seat is placed on the slide rail, and the sliding block is always located in the slide groove in the lifting process of the driving frame lifting cylinder. The sliding rail can be prevented from falling off in the lifting process of the sliding seat, so that the position is not accurate.
As preferred, the sliding seat is equipped with the ejector pin adapter sleeve of cover on the ejector pin, the ejector pin adapter sleeve is equipped with connector portion inlet port and connector portion venthole, be equipped with on the global ejector pin portion air inlet annular and ejector pin portion air outlet annular that extend along ejector pin circumference on the ejector pin, the ejector pin is equipped with the centre bore that link up the exposed core of the centre gripping end of ejector pin, ejector pin portion air inlet annular be equipped with the ejector pin portion inlet port of centre bore intercommunication, ejector pin portion air outlet annular be equipped with the ejector pin portion venthole of centre bore intercommunication, ejector pin portion air inlet annular with connector portion inlet port aligns, ejector pin portion air outlet annular with connector portion outlet port aligns, the sealed sliding connection of centre bore has the core bar and drives the core bar and stretch out the core bar extension spring of centre bore, be equipped with along core bar portion air inlet annular and core bar portion air outlet annular of core bar circumference extension on the global, a communication channel for communicating the core rod part air inlet ring groove and the core rod part air outlet ring groove is arranged in the core rod, and when the core rod is in a state of extending out of the ejector rod under the action of the core rod extending spring, the core rod at least seals one of the ejector rod part air inlet hole and the ejector rod part air outlet hole; when the ejector rod clamps the grid so that the core rod is extruded by the grid and is in a contraction state, the air inlet ring groove of the core rod part is aligned with the air inlet hole of the ejector rod part, and the air outlet ring groove of the core rod part is aligned with the air outlet hole of the ejector rod part; the air outlet of the connecting sleeve part is connected with the inlet end of the air inlet pipe. During the use, the origin of compression links together with connecting cover portion inlet port, and this technical scheme only has carried out the clamping action and when having held the grid when the ejector pin translation, and the spray gun is from starting, otherwise compressed air carry can not the spray gun in, the dull polish can not pass through the spray gun blowout. The waste of abrasive materials caused by sand blasting when the grid is not clamped by the clamping rod (avoiding the fault of the ejector rod translation cylinder) and/or when the grid is not clamped (the grid is not conveyed in place in the clamping process, and the empty clamping phenomenon is generated) can be avoided.
Preferably, when the sliding seat is located at the sand blasting station, the spray gun is located below the ejector rod, and the grid clamped by the ejector rod rotates around the ejector rod in the whole process of staggering with the spray gun along the left-right direction. According to the technical scheme, the abrasive material sprayed to the surface of the grid in the sand blasting process can be prevented from falling onto the grid again to cause the falling phenomenon of a sand blasting layer, so that the bonding reliability of the grid and lead paste can be improved.
Preferably, an abrasive collecting tank for receiving abrasives falling off during blasting by the blasting gun is arranged in the blasting chamber, and water is stored in the abrasive collecting tank. The pollution of the blasting chamber caused by the bonding of the abrasive in the blasting chamber can be avoided.
Preferably, the portable sand blasting machine further comprises a sand blasting shielding plate which is arranged on the top wall of the sand blasting chamber in a penetrating mode in an extractable mode, one end of the sand blasting shielding plate is located outside the sand blasting chamber, the other end of the sand blasting shielding plate is located inside the sand blasting chamber, the opening direction of the nozzle faces to the part, located inside the sand blasting chamber, of the sand blasting shielding plate, the sand blasting shielding plate is provided with a hanging stop block, and the sand blasting shielding plate is hung on the sand blasting chamber through the hanging stop block in an abutting mode on the outer surface of the top. The frosting that does not block by the grid during can make the sandblast blocks on the board and not the adhesion on the roof of sandblast room, blocks the board through taking out the frosting regularly and clean the health that can realize the sandblast room, has improved the convenience when sandblast room is clean.
Preferably, one end of the ejector rod is a clamping end in contact with the grid, a push-pull rod is hinged to the center of the end face of the other end of the ejector rod in a spherical surface mode, a cylinder body of the ejector rod translation cylinder is connected with the sliding seat, and a piston rod of the ejector rod translation cylinder is connected with the push-pull rod through a connecting rod. Rotation and translation can be made reliable and non-interfering.
Preferably, the two sides of one end of the driving pin, which is positioned in the tooth groove of the rack and extends along the rack, are provided with contraction guide inclined planes. The drive pin can be reliably contracted when being pressed by the teeth of the through outer ring gear.
Preferably, the conveying driving frame, the double-stroke cylinder and the slide rail are positioned outside the sand blasting chamber, and the wall of the sand blasting chamber is provided with a strip-shaped avoiding hole for the ejector rod to pass through and extending along the horizontal direction. Can reduce the pollution of dull polish to grating transfer mechanism during the sandblast.
The invention has the following advantages: the surface of the grid can be sandblasted.
Drawings
FIG. 1 is a schematic front view of a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the spray gun;
fig. 3 is a schematic front view of a sliding seat in a feeding station according to a second embodiment of the present invention;
FIG. 4 is an enlarged partial schematic view at A of FIG. 1;
FIG. 5 is a schematic enlarged view of a portion of FIG. 3 at B;
FIG. 6 is an enlarged partial schematic view at C of FIG. 4;
FIG. 7 is a schematic cross-sectional view taken along line D-D of FIG. 3;
FIG. 8 is an enlarged partial schematic view at E of FIG. 7;
FIG. 9 is a schematic view of the present invention with the slide block moved to the blasting station;
fig. 10 is a partially enlarged schematic view at F of fig. 9;
fig. 11 is a schematic view of the present invention with the slide carriage moved to a blanking station.
In the figure: the device comprises a spray gun 1, a sand blasting chamber 2, a nozzle 3, a shell 4, an air inlet pipe 5, a frosted input hole 6, an air outlet 7, a grid input port 8, a grid output port 9, a carrier roller 10, a grid input conveyer belt 11, a grid output conveyer belt 12, a driving frame 13, a double-stroke cylinder 14, a slide rail 15, a slide seat 16, an ejector rod 17, an ejector rod translation cylinder 18, a grid 19 positioned at the blanking end of the grid input conveyer belt, a grid 20 positioned at the feeding end of the grid output conveyer belt, an outer gear ring 21, a rack 22, a rack driving cylinder 23, teeth 24 positioned at the lowest end of the rack, the tail end 25 of the outer gear ring, a notch 26, the head end 27 of the outer gear ring, a grid 28 clamped by the ejector head, a press switch 29, a press head 30, a strip 31, a driving pin 32, a contraction guide inclined plane 33, a grid positioning stop, The device comprises a lifting guide rod 37, a sliding groove 39, a relief hole 40, a sliding block 41, a mandril connecting sleeve 42, a connecting sleeve part air inlet hole 43, a connecting sleeve part air outlet hole 44, a mandril part air inlet ring groove 45, a mandril part air outlet ring groove 46, a central hole 47, a mandril part air inlet hole 48, a mandril part air outlet hole 49, a core rod 50, a core rod extension spring 51, a core rod part air inlet ring groove 52, a core rod part air outlet ring groove 53, a communicating channel 54, an abrasive collecting groove 55, a frosted baffle plate 56, a part 57 of the frosted baffle plate located in a sandblasting chamber, a hanging baffle 58, a push-pull rod 59, a connecting rod 60.
Detailed Description
The invention is further described with reference to the following figures and examples.
First embodiment, referring to fig. 1 and 2, a continuous casting grid surface sand blasting device comprises a plurality of spray guns 1, a sand blasting chamber 2 and a grid conveying mechanism. The spray gun comprises a shell 4 provided with a nozzle 3 and an air inlet pipe 5 with an outlet end penetrating in the shell. The housing is provided with a frosted input aperture 6. The outlet end of the air inlet pipe is provided with an air outlet 7. The opening direction of the air outlet is the same as that of the nozzle. The left end of the sand blasting chamber is provided with a grid input port 8, and the right end is provided with a grid output port 9. The grid conveying mechanism is used for inputting the grid into the sand blasting chamber through the grid input port and then outputting the grid from the grid output port, the spray gun is located in the sand blasting chamber, and the spray gun is used for spraying the grinding materials onto the surface of the grid when the grid passes through the sand blasting chamber. The conveying mechanism comprises a plurality of carrier rollers 10 extending in the front-back direction and used for supporting the grid, and a carrier roller driving mechanism (for example, the carrier rollers are driven through chain transmission) for driving the carrier rollers to rotate, and spray guns are arranged above and below the carrier rollers.
The second embodiment is different from the first embodiment in that:
referring to fig. 3 to 11, the grid conveying mechanism includes a grid input conveyor belt 11, a grid output conveyor belt 12, and a grid transfer mechanism for transferring a grid from the grid input conveyor belt to the grid output conveyor belt by clamping both ends of the grid in the length direction. The grid input conveyer belt is in butt joint with the grid input port and extends into the sand blasting chamber. The grid output conveyer belt is in butt joint with the grid output port and extends into the sand blasting chamber. The grid transfer mechanism is located outside the sandblasting chamber. The grid transfer mechanism comprises a driving frame 13, a double-stroke air cylinder 14 for driving the driving frame to move along the left-right direction, and two slide rails 15 distributed on two sides of the sand blasting chamber along the front-back distribution direction. The sliding rails extend along the left-right direction, the driving frame is connected with two sliding seats 16 which are connected onto the two sliding rails in a one-to-one corresponding sliding mode, the feeding end of the grid output conveying belt and the discharging end of the grid input conveying belt are located between the two sliding rails, ejector rods 17 extending along the front-back direction, ejector rod translation cylinders 18 driving the ejector rods to move on the sliding seats along the front-back direction and ejector rod rotating mechanisms driving the ejector rods to rotate are arranged on the sliding seats in a penetrating mode, the ejector rods on the two sliding seats are aligned, and the ejector rods on one sliding seat stretch towards the other sliding seat; the sliding rail is provided with a feeding station, a sand blasting station and a discharging station, when the sliding seat is positioned at the feeding station, the ejector rod is aligned with the grid 19 positioned on the discharging end of the grid input conveying belt, when the sliding seat is positioned at the sand blasting station, the opening direction line of the nozzle and the axis of the ejector rod are positioned on the same plane, and when the sliding seat is positioned at the discharging station, the ejector rod is aligned with the grid 20 positioned on the feeding end of the grid output conveying belt. The wall of the sand blasting chamber is provided with a strip-shaped avoidance hole 40 which is used for the mandril to pass through and extends along the horizontal direction. When the double-stroke cylinder is in a contraction state, the sliding seat is located on the feeding station, when the double-stroke cylinder extends out of one stroke, the sliding seat is located on the sand blasting station, and when the double-stroke cylinder extends out of two strokes, the sliding seat is located on the discharging station. The ejector rod rotating mechanism comprises an outer gear ring 21 arranged on the ejector rod and extending along the circumferential direction of the ejector rod, a vertically extending rack 22 for driving the outer gear ring, and a rack driving cylinder 23 for driving the rack to lift, wherein the outer gear ring only surrounds the ejector rod by 270 degrees; the rack drive cylinder is connected to the connecting rod 60 by a connecting frame 62. 6 when the sliding seat is positioned at a feeding station, the rack is disengaged from the outer gear ring, the teeth 24 positioned at the lowermost end of the rack are positioned below a horizontal plane passing through the axis of the ejector rod, a gap 26 between the head end 27 of the outer gear ring and the tail end 25 of the outer gear ring faces the rack, the head end of the outer gear ring is positioned on one side, facing the rack, of a vertical plane passing through the axis of the ejector rod and is positioned on the upper side of the ejector rod, the number of teeth of the outer gear ring on one side part, facing the rack, of the vertical plane passing through the axis of the ejector rod is more than 1, and the ejector rod and the rack are positioned on the left side and the right side; when the ejector rod rotates under the action of the weight of the grid to the head end of the outer gear ring and is meshed with the rack, the rack driving cylinder drives the rack to descend so that the rack drives the ejector rod to rotate through the outer gear ring, when the ejector rod rotates to separate the outer gear ring from the rack, the rack driving cylinder drives the rack to reset, when the ejector rod rotates to separate the outer gear ring from the rack, the head end of the outer gear ring is located on one side, facing the rack, of a vertical plane passing through the axis of the ejector rod and located on the upper side of the ejector rod, and the moment when the rack resets to the place is earlier than the moment when the ejector rod rotates under the action of the weight of. The ejector rod rotating mechanism further comprises an engagement state detection device for detecting whether the rack is engaged with the outer gear ring or not, the engagement state detection device comprises a plurality of press switches 29, and press heads 30 of the press switches are connected with laths 31 extending along the extension direction of the rack. The lath is connected with a plurality of driving pins 32 extending along the depth direction of the tooth grooves of the rack, the driving pins are distributed along the extending direction of the rack, and one driving pin penetrates through each tooth groove of the rack. When the pressing heads of all the press switches are not pressed, the rack is not meshed with the outer gear ring, namely, the rack is disengaged, and when the pressing heads of any one press switch are pressed to cause the on-off state of the press switch to change, the outer gear ring is meshed with the rack. And two sides of one end of the driving pin, which is positioned in the tooth groove of the rack and extends along the rack, are provided with contraction guide inclined planes 33. The invention also comprises a grid positioning block 34 which is positioned at the right end of the grid input conveying belt and used for blocking the grids on the grid input conveying belt from moving rightwards. The drive frame is connected to the blasting chamber by a drive frame lifting cylinder 35. The cylinder body of the double-stroke cylinder is provided with a lifting guide rod 37 which is arranged on a cylinder connecting plate 36 in a penetrating way, and the cylinder connecting plate is connected with the sand blasting chamber; when the sliding seat is located at the feeding station, the ejector rod is located on the right side of the center line of the grid width direction on the discharging end of the grid input belt, the grid located on the discharging end of the grid input belt is clamped by the ejector rod when the driving frame is driven by the driving frame lifting air cylinder to be in a lifting state, and the right end of the grid is higher than the grid positioning stop block. The slide rail is provided with a slide groove 39 extending along the left-right direction, and the slide seat is provided with a slide block 41 arranged in the slide groove in a penetrating way. The sliding seat is placed on the sliding rail, and the sliding block is always positioned in the sliding groove in the process of lifting of the driving frame lifting cylinder. The sliding seat is provided with a mandril connecting sleeve 42 which is sleeved on the mandril, the mandril is connected and sleeved with a connecting sleeve part air inlet hole 43 and a connecting sleeve part air outlet hole 44, the peripheral surface of the mandril is provided with a mandril part air inlet ring groove 45 and a mandril part air outlet ring groove 46 which extend along the circumferential direction of the mandril, the mandril is provided with a central hole 47 which penetrates through the clamping end of the mandril, the mandril part air inlet ring groove is provided with a mandril part air inlet hole 48 which is communicated with the central hole, the mandril part air outlet ring groove is provided with a mandril part air outlet hole 49 which is communicated with the central hole and is always aligned with a connecting sleeve part air inlet hole, the mandril part air outlet ring groove is always aligned with a connecting sleeve part air outlet hole, the central hole is internally provided with a core bar 50 and a core bar extension spring 51 which drives the core bar to extend out the central hole in a sealing, when the core rod is in a state of extending out of the ejector rod under the action of the core rod extending out of the spring, the core rod at least seals one of the air inlet hole of the ejector rod part and the air outlet hole of the ejector rod part; when the ejector rod clamps the grid so that the core rod is extruded by the grid and is in a contraction state, the air inlet ring groove of the core rod part is aligned with the air inlet hole of the ejector rod part, and the air outlet ring groove of the core rod part is aligned with the air outlet hole of the ejector rod part; the air outlet of the connecting sleeve part is connected with the inlet end of the air inlet pipe. When the sliding seat is positioned at the sand blasting station, the spray guns are positioned below the ejector rod, and the grid clamped by the ejector rod is staggered with the spray guns along the left and right directions in the whole process of rotating by taking the ejector rod as an axis. An abrasive collecting tank 55 for receiving abrasives falling off when the spray gun performs sand blasting is arranged in the sand blasting chamber, and water is stored in the abrasive collecting tank. The invention also includes a sanding baffle 56 removably mounted through the top wall of the blasting chamber, one end of the sanding baffle being located outside the blasting chamber and the other end being located inside the blasting chamber, the opening of the nozzle opening being directed towards a portion 57 of the sanding baffle located inside the blasting chamber, the sanding baffle being provided with a hanging stop 58, the sanding baffle being hung from the blasting chamber by the hanging stop abutting against the outer surface of the top wall of the blasting chamber. One end of the ejector rod is a clamping end which is in contact with the grid, the spherical surface at the center of the end surface of the other end of the ejector rod is hinged with a push-pull rod 59, the cylinder body of the ejector rod translation cylinder is connected with the sliding seat, and the piston rod of the ejector rod translation cylinder is connected with the push-pull rod through a connecting rod 60.
When the device is used, the air inlet of the connecting sleeve part is connected with a compressed air source through an air valve, the grid 61 is conveyed rightwards by the grid input conveying belt and is blocked by the grid positioning block to stop moving rightwards, when the sliding block is positioned at a loading position, the ejector rod translation cylinder drives the ejector rod to extend out to clamp the grid, and then the driving frame lifting cylinder drives the driving frame to be in a lifting state; the double-stroke cylinder outputs a stroke to enable the sliding seat to be positioned on a sand blasting station, the driving frame lifting cylinder drives the driving frame to descend to the sliding seat to be positioned on the sliding rail after the sliding block is positioned on the sand blasting station, the air valve is opened to supply air to the spray gun so that the frosted sand is sprayed out by the spray gun, and the ejector rod rotating mechanism drives the ejector head to rotate for a set number of turns; and closing the air valve, fully extending two strokes of the double-stroke air cylinder to enable the sliding block to be positioned on the blanking station, moving the grid to be positioned on the grid output conveying belt to form a grid 20 positioned on the feeding end of the grid output conveying belt, and then loosening the clamping effect of the ejector head on the grid 20 positioned on the feeding end of the grid output conveying belt to enable the grid to be conveyed away by the grid output conveying belt.
The process of the ejector rod rotating mechanism driving the grid 28 clamped by the ejector head to rotate is as follows: when the grid is moved to leave the grid input conveyer belt, the grid clamped by the ejector head under the action of gravity rotates 90 degrees according to the G direction in figure 3, so that the head end of the outer gear ring is meshed with the rack to enable the grid to be converted into the grid in a vertical state (namely the grid in the state in figure 9), at the moment, the rack driving cylinder extends to enable the rack to drive the outer gear ring to rotate and drive the ejector rod to rotate together, when the ejector rod rotates to disconnect the outer gear ring from the rack (the grid is in a flat state, namely the grid is in the state that the grid is input to the conveyer belt), the rack driving cylinder contracts to drive the rack to reset, so that the grid rotates for one circle, when the ejector rod rotates to disconnect the outer gear ring from the rack, the head end of the outer gear ring is positioned on one side, facing the rack, of a vertical plane passing through the axis of the ejector rod, and positioned on the upper side of the ejector rod, the time, the grid rotates by taking the ejector rod as the shaft through the process. When the grids are ready to be moved to the grid output conveyor belt, the grids are already rotated by N circles plus 90 degrees in one direction (namely G direction in figure 3), when the grids are moved to the grid output conveyor belt, the grids are rotated by 90 degrees in the other direction (namely the direction opposite to G direction in figure 3) under the action of the grid output conveyor belt, so that the grid rotating mechanism is in an initial state, and when the grids are newly moved to a loading station, the process can be repeated to complete the rotation of the next grid.
Claims (8)
1. The utility model provides a continuous casting grid surface sand blasting unit, includes a plurality of spray guns, the intake pipe in the shell is worn to establish including the shell that is equipped with the spout and exit end to the spray gun, the shell is equipped with the dull polish input hole, the gas outlet is established to the exit end of intake pipe, the opening direction of gas outlet with the opening direction of spout is the same, its characterized in that still includes sandblast room and grid conveying mechanism, the left end of sandblast room is equipped with the grid input port, the right-hand member is equipped with the grid delivery outlet, grid conveying mechanism is used for with the grid warp follow behind the input sandblast room of grid input port grid again grid delivery outlet is exported, the spray gun is located in the sandblast room, the spray gun is used for when the grid passes through the sandblast room will grind sand and spout on the surface of grid, grid conveying mechanism includes grid input conveyer belt, grid output conveyer belt and the commentaries on classics that the grid The grid input conveyer belt is in butt joint with the grid input port, and the grid output conveyer belt is in butt joint with the grid output port; the grid transfer mechanism comprises a driving frame, a double-stroke cylinder and two sliding rails, wherein the double-stroke cylinder drives the driving frame to move along the left-right direction, the two sliding rails are distributed on two sides of the sand blasting chamber along the front-back distribution direction, the sliding rails extend along the left-right direction, the driving frame is connected with two sliding seats which are in one-to-one correspondence sliding connection with the two sliding rails, the feeding end of the grid output conveying belt and the blanking end of the grid input conveying belt are positioned between the two sliding rails, ejector rods extending along the front-back direction, ejector rod translation cylinders driving the ejector rods to move on the sliding seats along the front-back direction and an ejector rod rotating mechanism driving the ejector rods to rotate are arranged on the sliding seats in a penetrating mode, the ejector rods on the two sliding; the slide rail is provided with a feeding station, a sand blasting station and a discharging station, the ejector rod is aligned with a grid on the discharging end of a grid input conveyer belt when the slide seat is positioned at the feeding station, the opening direction line of the nozzle and the axis of the ejector rod are positioned on the same plane when the slide seat is positioned at the sand blasting station, the ejector rod is aligned with a grid on the feeding end of a grid output conveyer belt when the slide seat is positioned at the discharging station, the slide seat is positioned on the feeding station when the double-stroke cylinder is in a contraction state, the slide seat is positioned on the sand blasting station when the double-stroke cylinder extends out for one stroke, the slide seat is positioned on the discharging station when the double-stroke cylinder extends out for two strokes, the ejector rod rotating mechanism comprises an outer gear ring arranged on the ejector rod and extending along the circumferential direction of the ejector rod, a vertically extending rack driving the outer gear ring and a rack driving cylinder driving the rack to lift up and, the outer gear ring only surrounds 270 degrees on the ejector rod; when the sliding seat is positioned at the feeding station, the rack is disengaged from the outer gear ring, the teeth at the lowermost end of the rack are positioned below a horizontal plane passing through the axis of the ejector rod, a gap between the head end and the tail end of the outer gear ring faces the rack, the head end of the outer gear ring is positioned on one side, facing the rack, of a vertical plane passing through the axis of the ejector rod and is positioned on the upper side of the ejector rod, the number of the teeth on the part, facing the rack, of the vertical plane passing through the axis of the ejector rod is more than 1, and the ejector rod and the rack are positioned on the left side and the right side of the center line of the width direction of the grid on the feeding; when the ejector rod rotates under the action of the weight of the grid to the head end of the outer gear ring and is meshed with the rack, the rack driving cylinder drives the rack to descend so that the rack drives the ejector rod to rotate through the outer gear ring, the ejector rod drives the rack driving cylinder to reset when the outer gear ring is separated from the rack, the head end of the outer gear ring is located on one side, facing the rack, of a vertical plane passing through the axis of the ejector rod and located on the upper side of the ejector rod when the ejector rod rotates to separate from the rack, and the moment when the rack resets to the place is earlier than the moment when the ejector rod rotates under the action of the weight of the grid to the head end of the.
2. The continuous casting grid surface sand blasting device according to claim 1, wherein the conveying mechanism comprises a plurality of supporting rollers extending in the front-back direction for supporting the grid and a supporting roller driving mechanism for driving the supporting rollers to rotate, and the spray guns are arranged above and below the supporting rollers.
3. The continuous casting grid surface sand blasting device according to claim 1, further comprising a grid positioning stop block positioned at the right end of the grid input conveying belt and used for stopping grids on the grid input conveying belt from moving rightwards, wherein the driving frame is connected with the sand blasting chamber through a driving frame lifting cylinder, a cylinder body of the double-stroke cylinder is provided with a lifting guide rod penetrating through a cylinder connecting plate, and the cylinder connecting plate is connected with the sand blasting chamber; when the sliding seat is located at the feeding station, the ejector rod is located on the right side of the center line of the grid width direction on the discharging end of the grid input belt, the grid located on the discharging end of the grid input belt is clamped by the ejector rod when the driving frame is driven by the driving frame lifting air cylinder to be in a lifting state, and the right end of the grid is higher than the grid positioning stop block.
4. The device for blasting sand onto the surface of a continuously cast grid according to claim 3, wherein the slide rail is provided with slide grooves extending in the left-right direction, the slide seat is provided with slide blocks penetrating into the slide grooves, the slide seat is placed on the slide rail, and the slide blocks are always positioned in the slide grooves during the lifting of the driving frame lifting cylinder.
5. The continuous casting grid surface sand blasting device as claimed in claim 1, wherein the sliding seat is provided with a mandril connecting sleeve sleeved on the mandril, the mandril connecting sleeve is provided with a connecting sleeve portion air inlet hole and a connecting sleeve portion air outlet hole, the circumferential surface of the mandril is provided with a mandril portion air inlet ring groove and a mandril portion air outlet ring groove which extend along the circumferential direction of the mandril, the mandril is provided with a central hole which penetrates through the clamping end of the mandril, the mandril portion air inlet ring groove is provided with a mandril portion air inlet hole which is communicated with the central hole, the mandril portion air outlet ring groove is provided with a mandril portion air outlet hole which is communicated with the central hole, the mandril portion air inlet ring groove is aligned with the connecting sleeve portion air inlet hole, the mandril portion air outlet ring groove is aligned with the connecting sleeve portion air outlet hole, and the, the peripheral surface of the core rod is provided with a core rod part air inlet ring groove and a core rod part air outlet ring groove which extend along the circumferential direction of the core rod, a communication channel for communicating the core rod part air inlet ring groove and the core rod part air outlet ring groove is arranged in the core rod, and when the core rod is in a state of extending out the ejector rod under the action of the core rod extending spring, the core rod at least seals one of the ejector rod part air inlet hole and the ejector rod part air outlet hole; when the ejector rod clamps the grid so that the core rod is extruded by the grid and is in a contraction state, the air inlet ring groove of the core rod part is aligned with the air inlet hole of the ejector rod part, and the air outlet ring groove of the core rod part is aligned with the air outlet hole of the ejector rod part; the air outlet of the connecting sleeve part is connected with the inlet end of the air inlet pipe.
6. The continuous casting grid surface sand blasting device according to claim 1, wherein when the sliding seat is located at the sand blasting station, the spray gun is located below the ejector rod, and the whole process that the grid clamped by the ejector rod rotates around the ejector rod is staggered with the spray gun in the left-right direction.
7. The device for blasting sand onto the surface of a continuously cast grid according to claim 6, wherein a sand collection tank is arranged in the sand blasting chamber for receiving the sand falling off during sand blasting by the spray gun, and water is stored in the sand collection tank.
8. The device for blasting the surface of the continuously cast grid with sand as claimed in claim 6, further comprising a grinding baffle plate which is drawably disposed through the top wall of the sand blasting chamber, wherein one end of the grinding baffle plate is located outside the sand blasting chamber, the other end of the grinding baffle plate is located inside the sand blasting chamber, the opening direction of the nozzle is towards the part of the grinding baffle plate located inside the sand blasting chamber, the grinding baffle plate is provided with a suspension stop, and the grinding baffle plate is suspended on the sand blasting chamber by abutting the suspension stop on the outer surface of the top wall of the sand blasting chamber.
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| CN202010920668.3A CN112059922B (en) | 2020-09-04 | 2020-09-04 | Sand blasting device for surface of continuous casting grid |
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| CN202010920668.3A CN112059922B (en) | 2020-09-04 | 2020-09-04 | Sand blasting device for surface of continuous casting grid |
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| CN112059922B true CN112059922B (en) | 2021-07-16 |
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| CN112059922A (en) | 2020-12-11 |
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