CN117620077A - Resin sand treatment line for casting steel castings - Google Patents
Resin sand treatment line for casting steel castings Download PDFInfo
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- CN117620077A CN117620077A CN202410105354.6A CN202410105354A CN117620077A CN 117620077 A CN117620077 A CN 117620077A CN 202410105354 A CN202410105354 A CN 202410105354A CN 117620077 A CN117620077 A CN 117620077A
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- motor
- sand box
- controller
- frame
- inner cavity
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- 239000011347 resin Substances 0.000 title claims abstract description 45
- 229920005989 resin Polymers 0.000 title claims abstract description 45
- 239000004576 sand Substances 0.000 title claims abstract description 41
- 238000005266 casting Methods 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 16
- 239000010959 steel Substances 0.000 title claims abstract description 16
- 244000035744 Hura crepitans Species 0.000 claims abstract description 87
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 33
- 230000000670 limiting effect Effects 0.000 claims description 20
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/10—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by dust separating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention relates to the technical field of steel casting, and particularly discloses a resin sand treatment line for steel casting, which comprises the following steps: the sand box processing mechanism comprises a sand box processing mechanism shell, a hoisting machine, an air purifier, a sand box fixing mechanism, a cleaning mechanism, a discharge groove and a hoisting machine; the hoisting machine is arranged at the rear side of the interior of the sand box processing mechanism shell; the two air purifiers are respectively embedded at the front side and the rear side of the top end of the inner cavity of the sand box processing mechanism shell; the sand box fixing mechanism is arranged at the bottom end of the inner cavity of the sand box processing mechanism shell and is positioned at the outer side of the discharge groove; the cleaning mechanism is arranged at the top of the inner cavity of the sand box processing mechanism shell and is positioned above the sand box fixing mechanism. According to the invention, the residual resin sand in the sand box is removed by adopting an automatic technology, so that the resin sand residue in the sand box is thoroughly removed, the influence on the subsequent casting process is avoided, the cleaning and recovery efficiency of the resin sand are improved, and more intelligent and sustainable casting production is realized.
Description
Technical Field
The invention relates to the technical field of steel casting, in particular to a resin sand treatment line for steel casting.
Background
The resin sand is a filling material used in the casting process, and mainly comprises one or more resins, a certain proportion of filling agent, curing agent and other additives, in the casting process, the resin sand is used as the filling material of a mould to manufacture castings with required shapes and sizes, the resin sand has good fluidity and plasticity, the mould is filled while the better bonding performance can be maintained, the resin sand is generally prepared by mixing the resin and the filling agent, then the curing agent is added for reaction, so that the resin sand is solidified into solid sand blocks with certain strength and wear resistance, the solid sand blocks are used for manufacturing the mould, the resin sand can be used for selecting different types and proportions of the resin and the filling agent according to the requirements of different casting requirements and material characteristics, the resin sand is widely applied to various casting technologies, including cast iron, cast steel, copper alloy, aluminum alloy and the like, the resin sand has the advantages of low cost, high production efficiency, good surface quality and the like, and the resin can be recycled and reused through a regeneration technology in the modern casting field;
in the prior art, the existing cleaning method often needs a large amount of manpower and time, has lower cleaning efficiency, and is difficult to completely clean residual resin sand in the sand box due to the fact that the resin sand is adhered to the inside of the sand box, especially in small structures or corners of the sand box, the residual resin sand affects the quality of castings in the subsequent casting process, and the resin sand cannot be completely recovered to cause waste.
Disclosure of Invention
The invention aims to provide a resin sand treatment line for casting steel castings, which solves the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a resin sand processing line for casting steel castings comprises a sand box processing mechanism shell, a hoisting machine, an air purifier, a discharge groove, a hoisting machine, a sand box fixing mechanism, a cleaning mechanism and a controller; the controller is arranged on the side surface of the sand box processing mechanism shell; the lifting machine is arranged at the rear side of the interior of the sand box processing mechanism shell, and is electrically connected with the controller; the number of the air cleaners is two, the two air cleaners are respectively embedded in the front side and the rear side of the top end of the inner cavity of the sand box processing mechanism shell, and the air cleaners are electrically connected with the controller; the discharge groove is arranged at the center of the bottom of the inner cavity of the sand box processing mechanism shell; the lifting machine is arranged on the right side of the bottom end of the inner cavity of the sand box processing mechanism shell, the lifting machine is communicated with the inner cavity of the discharge groove, the lifting machine is electrically connected with the controller, the sand box fixing mechanism is arranged at the bottom end of the inner cavity of the sand box processing mechanism shell and is positioned at the outer side of the discharge groove, and the cleaning mechanism is arranged at the top of the inner cavity of the sand box processing mechanism shell and is positioned above the sand box fixing mechanism.
Preferably, the flask fixing mechanism includes: the device comprises a ground rail, a mounting rack, a screw rod assembly, a coupler, a first motor, a driving belt piece, a base and a limiting wheel; the number of the ground rails is two, and the two ground rails are respectively arranged at the bottom of the inner cavity of the sand box processing mechanism shell along the front-back direction and are positioned at the left side and the right side above the discharge groove; the number of the mounting frames is two, and the two mounting frames are respectively arranged at the bottom of the inner cavity of the sand box processing mechanism shell along the front-back direction and positioned at the front-back two sides of the upper middle part of the discharge groove; the number of the screw rod assemblies is two, the two screw rod assemblies are respectively arranged in the inner cavities of the front mounting frame and the rear mounting frame, and the axes of the screw rod screws in the two screw rod assemblies extend out of the inner sides of the front mounting frame and the rear mounting frame; the coupler is locked at the inner ends of the axes of the screw rods of the front screw rod assembly and the rear screw rod assembly; the first motor is arranged at the front side and at the rear side of the inner cavity of the mounting frame, the rotating end of the first motor extends out of the outer wall of the mounting frame, and the first motor is electrically connected with the controller; one end of the transmission belt piece is arranged at the rear side of the rotating end of the first motor, and the other end of the transmission belt piece is fixedly connected with the outer side of the axle center of the coupler; the number of the bases is two, the two bases are respectively arranged above the front mounting frame and the rear mounting frame, and the bottoms of the front base and the rear base are respectively connected with screw nuts in the front screw assembly and the rear screw assembly; the number of the limiting wheels is two, the number of each limiting wheel is four, the two limiting wheels are respectively arranged at four corners of the bottom ends of the front base and the rear base, and the outer parts of the limiting wheels are clamped with the top ends of the ground rails; wherein, the top of two front and back bases is provided with fixed upset unit.
Preferably, the fixed flipping unit includes: the device comprises a roller seat, a bracket, a sheave, a large-sized chain wheel, a second motor, a first chain wheel, a chain, a placing groove, a slot frame, a fixing frame and an electric push rod; the number of the roller seats is two, and the two roller seats are respectively arranged at the left side and the right side of the top end of the base; the bracket is arranged at the top end of the base through the bracket and is positioned at the outer sides of the middle parts of the left roller seat and the right roller seat; the grooved pulley is rotationally connected with the inner end of the bracket through a bearing; the large chain wheel is clamped on the inner sides of the left and right roller seats and the grooved wheel; the second motor is arranged at the top of the base and is electrically connected with the controller; the first chain wheel is arranged on the inner side of the rotating end of the second motor; one end of the chain is connected to the outer side of the first chain wheel, and the other side of the chain is connected with the outer side of the large chain wheel; the placing groove is formed in the inner side of the large chain wheel; the number of the slot frames is two, and the two slot frames are respectively embedded at the left side and the right side of the bottom end of the large chain wheel; the fixing frame is inserted at the outer sides of the left slot frame and the right slot frame; the number of the electric push rods is two, the two electric push rods are respectively arranged at the bottom ends of the inner sides of the left slot frame and the right slot frame, the telescopic ends of the electric push rods are fixedly connected with the inner sides of the bottom ends of the fixing frames, and the electric push rods are electrically connected with the controller.
Preferably, the cleaning mechanism includes: the device comprises a top rail, a double-shaft moving platform, a lifting platform, a knocking assembly, a moving platform, a scissor lifter and a crushing assembly; the top rail is arranged at the top of the inner cavity of the sand box processing mechanism shell along the front-back direction; the double-shaft moving platform is arranged at the front side of the bottom of the top rail and is electrically connected with the controller; the lifting platform is arranged on the front side of the double-shaft moving platform and is electrically connected with the controller; the knocking component is arranged at the bottom of the movable end of the lifting platform; the movable platform is arranged at the rear side of the bottom of the top rail and is electrically connected with the controller; the scissor type lifter is arranged at the bottom of the mobile platform and is electrically connected with the controller; the crushing assembly is arranged at the bottom of the lifting end of the scissor lifter.
Preferably, the striking assembly includes: the device comprises a support frame, a third motor, a turntable, a spring connector, a connecting seat, a first connecting rod, a slot shell, a hammer head rod and a second connecting rod; the support frame is fixedly arranged at the bottom of the moving end of the lifting platform along the up-down direction; the third motor is arranged at the rear side of the support frame, the rotating end of the third motor extends to the front side of the support frame, and the third motor is electrically connected with the controller; the turntable is arranged at the front side of the rotating end of the third motor; one end of the spring connector is rotationally connected to the front side of the turntable through a pin shaft seat; the connecting seat is rotationally connected to the front side of the other end of the turntable through the pin shaft seat; the number of the first connecting rods is two, and one ends of the two first connecting rods are respectively connected to the left side and the right side of the connecting seat in a rotating way through pin shafts; the slot shell is arranged at the bottom end of the front side of the support frame; the hammer head rod is inserted into the inner side of the slot shell along the up-down direction; the number of the second connecting rods is two, one ends of the two second connecting rods are respectively connected to the left side and the right side of the left connecting seat and the right side of the right connecting seat through pin shafts in a rotating mode, and the other ends of the two second connecting rods are respectively connected with the left end and the right end of the inner side of the top end of the hammer head rod through pin shafts in a rotating mode.
Preferably, the crushing assembly comprises: the device comprises a groove body shell, a first guide rail frame, a second sprocket, a fourth motor, a second chain, a first chute seat, a first sliding block, a second guide rail frame, a first chute seat, a second sliding block, a third sprocket, a third chain and a fifth motor; the shell of the tank body is arranged at the bottom of the lifting end of the scissor type lifter along the front-back direction; the first guide rail frame is arranged in the middle of the inner side of the groove body shell; the number of the second chain wheels is two, and the two second chain wheels are respectively connected to the front end and the rear end of the inner side of the first guide rail frame in a rotating way through pin shafts; the fourth motor is arranged at the rear side of the top end of the groove body shell, the rotating end of the fourth motor extends into the inner side of the first guide rail frame and is fixedly connected with the axle center of the rear side second sprocket, and the fourth motor is electrically connected with the controller; the second chain is connected to the outer sides of the front and rear two second chain wheels along the front and rear direction; the first chute seat is sleeved on the outer side of the first guide rail frame along the left-right direction; the first sliding block is inserted into the inner side of the first chute seat, and the top of the first sliding block is rotationally connected with the outer side of the second chain through a pin shaft; the second guide rail frame is arranged in the inner cavity of the groove body shell along the front-back direction and positioned at the bottom of the outer side of the first guide rail frame; the first chute seat is sleeved on the outer side of the second guide rail frame along the left-right direction; the second sliding block is inserted into the inner cavity of the first chute seat; the number of the third chain wheels is four, and the four third chain wheels are respectively connected to the top end of the inner cavity of the groove body shell in a rotating way through pin shafts and are positioned at four corners of the top of the second guide rail frame; the third chain is connected to the outer sides of the four third chain wheels; the fifth motor is arranged right in front of the top end of the tank body shell, the rotating end of the fifth motor extends into the inner cavity of the tank body shell and is fixedly connected with the axle center of the third sprocket, and the fifth motor is electrically connected with the controller; wherein, the bottom of first slider and second slider all is provided with crushing means.
Preferably, the crushing member comprises: the device comprises a mounting seat, a rotating frame, a sixth motor, a connecting seat, a turning transmission, a crushing drill bit, a seventh motor and a universal transmission rod; the mounting seats are respectively arranged at the bottoms of the first sliding block and the second sliding block along the up-down direction; the number of the rotating frames is two, and the two third chain wheels are respectively connected to the upper end and the lower end of the front side of the mounting seat in a rotating way through pin shafts; the sixth motor is arranged on the left side of the mounting seat, the rotating end of the sixth motor is fixedly connected with the axle center of the top rotating frame, and the sixth motor is electrically connected with the controller; the connecting seat is rotationally connected to the inner sides of the front ends of the two rotating frames along the up-down direction through a pin shaft; the direction-changing driver is arranged at the top end of the front side of the connecting seat; the crushing drill bit is connected to the bottom of the output end of the direction-changing driver along the up-down direction by a screw; the seventh motor is rotationally connected to the top end of the inner side of the mounting seat through a pin shaft, and the seventh motor is electrically connected with the controller; one end of the universal transmission rod is fixedly connected with the rotating end of the seventh motor, and the other end of the universal transmission rod is fixedly connected with the input end of the connecting seat.
Compared with the prior art, the invention has the beneficial effects that: the movable platform moves horizontally along the top rail and drives the scissor type lifter to drive the crushing assembly to move above the sand box, the scissor type lifter stretches to drive the crushing assembly to descend to the inner cavity of the sand box, the fourth motor and the fifth motor respectively drive the second chain wheel and the third chain wheel at corresponding positions to rotate, the second chain and the third chain respectively drive the first sliding block and the second sliding block to move circumferentially, the first sliding block and the second sliding block respectively drive the crushing part at corresponding positions to move circumferentially in the opposite directions synchronously, the sixth motor drives the rotating frame at the corresponding positions to rotate downwards, the connecting seat drives the crushing drill bit to move downwards to contact resin sand inside the sand box under the limit effect of the rotating frame at the other side, the seventh motor drives the universal transmission rod to rotate, the transmission direction is changed by the direction-changing transmission device under the transmission of the universal transmission rod to drive the crushing drill bit to rotate, realize the crushing of resin sand in the sand box into a block structure with smaller volume, the second motor drives the first sprocket to rotate, the large sprocket is driven to rotate under the transmission of a chain, the large sprocket overturns the sand box through a placing groove and a fixing frame, a double-shaft moving platform drives a knocking component to move forwards and backwards and horizontally along a top rail through a lifting platform, the lifting platform drives the knocking component to lift to a designated height position, the knocking component further moves circumferentially on the surface of a sand box shell, the third motor drives a turntable to rotate, one end of a turntable drives a spring connector to move circumferentially, and a connecting seat is driven to move circumferentially under the cooperation of the spring connector, so that the connecting seat drives a hammer rod to reciprocate up and down in the inside of a slot shell through a first connecting rod and a second connecting rod, the hammer rod is enabled to knock the sand box shell, so that the resin sand attached to the inside of the sand box falls off.
In summary, the invention eliminates the residual resin sand in the sand box by adopting an automatic technology, thoroughly removes the resin sand residue in the sand box, avoids influencing the subsequent casting process, improves the cleaning and recycling efficiency of the resin sand, and realizes more intelligent and sustainable casting production.
Drawings
Fig. 1 is an exploded view of the structure of the present invention.
FIG. 2 is an exploded view of the flask attachment mechanism of FIG. 1.
Fig. 3 is an enlarged view at a of fig. 2.
Fig. 4 is a schematic view of the cleaning mechanism of fig. 1.
Fig. 5 is an exploded view of the tapping assembly of fig. 4.
Fig. 6 is an exploded view of the crushing assembly of fig. 4.
Fig. 7 is an enlarged view at B of fig. 6.
In the figure: 1. a flask handling mechanism housing; 2. hoisting machine; 3. an air cleaner; 4. a sand box fixing mechanism; 41. a ground rail; 42. a mounting frame; 43. a lead screw assembly; 44. a coupling; 45. a first motor; 46. a drive belt member; 47. a base; 48. a limiting wheel; 49. a roller seat; 410. a bracket; 411. a sheave; 412. a large sprocket; 413. a second motor; 414. a first sprocket; 415. a chain; 416. a placement groove; 417. a slot frame; 418. a fixing frame; 419. an electric push rod; 5. a cleaning mechanism; 51. a head rail; 52. a biaxial moving platform; 53. a lifting platform; 54. a mobile platform; 55. a scissor lift; 6. a striking assembly; 61. a support frame; 62. a third motor; 63. a turntable; 64. a spring connector; 65. a connecting seat; 66. a first connecting rod; 67. a socket housing; 68. a hammer head rod; 69. a second connecting rod; 7. a crushing assembly; 71. a tank body housing; 72. a first rail frame; 73. a second sprocket; 74. a fourth motor; 75. a second chain; 76. a first chute seat; 77. a first slider; 78. a second rail frame; 79. a first chute seat; 710. a second slider; 711. a third sprocket; 712. a third chain; 713. a fifth motor; 714. a mounting base; 715. a rotating frame; 716. a sixth motor; 717. a connecting seat; 718. a direction-changing driver; 719. crushing a drill bit; 720. a seventh motor; 721. a universal transmission rod; 8. a discharge groove; 9. a hoist; 10. and a controller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the present invention provides a technical solution: a resin sand treatment line for steel casting, comprising: the sand box treatment mechanism comprises a sand box treatment mechanism shell 1, a hoisting machine 2, an air purifier 3, a sand box fixing mechanism 4, a cleaning mechanism 5, a discharge groove 8 and a hoisting machine 9; the controller 10 is arranged on the side surface of the sand box processing mechanism shell 1; the lifting machine 2 is arranged at the rear side of the interior of the sand box processing mechanism shell 1, the lifting machine 2 is electrically connected with the controller 10, the lifting machine 2 is controlled by the controller 10, and the lifting machine 2 can lift and move the sand box; the number of the air purifiers 3 is two, the two air purifiers 3 are respectively embedded in the front side and the rear side of the top end of the inner cavity of the sand box processing mechanism shell 1, the air purifiers 3 are electrically connected with the controller 10, the air purifiers 3 are controlled by the controller 10, and the air purifiers 3 can remove dust and purify the inner cavity of the sand box processing mechanism shell 1; the discharge groove 8 is arranged at the center of the bottom of the inner cavity of the sand box processing mechanism shell 1; the sand box fixing mechanism 4 is arranged at the bottom end of the inner cavity of the sand box processing mechanism shell 1 and is positioned at the outer side of the discharge groove 8; the cleaning mechanism 5 is arranged at the top of the inner cavity of the sand box processing mechanism shell 1 and above the sand box fixing mechanism 4, the lifting machine 9 is arranged at the right side of the bottom end of the inner cavity of the sand box processing mechanism shell 1, the lifting machine 9 is communicated with the inner cavity of the discharge groove 8, the lifting machine 9 is electrically connected with the controller 10, the lifting machine 9 is controlled by the controller 10, and the lifting machine 9 can lift internal resin sand.
As further preferable, as shown in fig. 2 and 3, the flask fixing mechanism 4 includes: ground rail 41, mounting bracket 42, lead screw assembly 43, shaft coupling 44, first motor 45, drive belt 46, base 47 and spacing wheel 48; the two ground rails 41 are arranged at the bottom of the inner cavity of the sand box processing mechanism shell 1 along the front-back direction and are positioned at the left side and the right side above the discharge groove 8; the number of the mounting frames 42 is two, and the two mounting frames 42 are respectively arranged at the bottom of the inner cavity of the sand box processing mechanism shell 1 along the front-back direction and positioned at the front-back two sides of the upper middle part of the discharge groove 8; the number of the screw rod assemblies 43 is two, the two screw rod assemblies 43 are respectively arranged in the inner cavities of the front mounting frame 42 and the rear mounting frame 42, the axes of the screw rod screws in the two screw rod assemblies 43 extend out of the inner sides of the front mounting frame 42 and the rear mounting frame 42, and the screw rod assemblies 43 adopt screw rod screw nut structures outside the screw rod screws; the coupler 44 is locked at the axial inner ends of the screw rods in the front screw rod assembly 43 and the rear screw rod assembly 43; the first motor 45 is arranged at the rear side of the inner cavity of the front mounting frame 42, the rotating end of the first motor 45 extends out of the outer wall of the mounting frame 42, the first motor 45 is electrically connected with the controller 10, the first motor 45 is controlled by the controller 10, and the first motor 45 can drive a belt pulley at one side of the transmission belt piece 46 to rotate; one end of a transmission belt piece 46 is arranged at the rear side of the rotating end of the first motor 45, the other end of the transmission belt piece 46 is fixedly connected with the outer side of the axle center of the coupler 44, and the transmission belt piece 46 can play a role in transmission between the first motor 45 and the coupler 44; the number of the bases 47 is two, the two bases 47 are respectively arranged above the front mounting frame 42 and the rear mounting frame 42, and the bottoms of the front and the rear bases 47 are respectively connected with screw nuts in the front and the rear screw assemblies 43; the number of the limiting wheels 48 is two, the number of each limiting wheel 48 is four, the two limiting wheels 48 are respectively arranged at four corners of the bottom ends of the front base 47 and the rear base 47, the outer parts of the limiting wheels 48 are clamped with the top ends of the ground rails 41, and the limiting wheels 48 can horizontally move along the top ends of the ground rails 41; wherein, the top ends of the front and rear bases 47 are provided with a fixed overturning unit; the fixed tilting unit includes: roller mount 49, bracket 410, sheave 411, large sprocket 412, second motor 413, first sprocket 414, chain 415, placement groove 416, slot mount 417, mount 418, and electric pushrod 419; the number of the roller seats 49 is two, and the two roller seats 49 are respectively arranged at the left side and the right side of the top end of the base 47; the bracket 410 is arranged at the top end of the base 47 through the bracket and is positioned outside the middle parts of the left roller seat 49 and the right roller seat 49; the grooved pulley 411 is rotatably connected to the inner end of the bracket 410 through a bearing; the large-sized chain wheel 412 is clamped on the inner sides of the left roller seat 49, the right roller seat 49 and the grooved wheel 411, and the roller seat 49 and the grooved wheel 411 can limit the large-sized chain wheel 412; the second motor 413 is arranged at the top of the base 47, the second motor 413 is electrically connected with the controller 10, the second motor 413 is controlled by the controller 10, and the second motor 413 can drive the first sprocket 414 to rotate clockwise or anticlockwise; the first sprocket 414 is disposed inside the rotating end of the second motor 413; one end of a chain 415 is connected to the outer side of the first sprocket 414, and the other side of the chain 415 is connected to the outer side of the large sprocket 412; a placement groove 416 is provided on the inside of large sprocket 412; the number of the slot frames 417 is two, and the two slot frames 417 are respectively embedded at the left side and the right side of the bottom end of the large chain wheel 412; the fixing frame 418 is inserted at the outer sides of the left slot frame 417 and the right slot frame 417; the number of the electric push rods 419 is two, the two electric push rods 419 are respectively arranged at the inner bottom ends of the left slot frame 417 and the right slot frame 417, the telescopic ends of the electric push rods 419 are fixedly connected with the inner sides of the bottom ends of the fixing frames 418, the electric push rods 419 are electrically connected with the controller 10, the electric push rods 419 are controlled by the controller 10, and the electric push rods 419 can be stretched and shortened by themselves to drive the fixing frames 418 to move.
As a preferred embodiment, as shown in fig. 4, the cleaning mechanism 5 includes: a top rail 51, a double-shaft moving platform 52, a lifting platform 53, a knocking component 6, a moving platform 54, a scissor lift 55 and a crushing component 7; the top rail 51 is provided on the top of the inner cavity of the flask handling mechanism housing 1 in the front-rear direction; the double-shaft moving platform 52 is arranged at the front side of the bottom of the top rail 51, the double-shaft moving platform 52 is electrically connected with the controller 10, the double-shaft moving platform 52 is controlled by the controller 10, the double-shaft moving platform 52 can horizontally move along the front and back directions of the top rail 51, and the double-shaft moving platform 52 can drive the lifting platform 53 to horizontally move left and right directions; the lifting platform 53 is arranged on the front side of the double-shaft moving platform 52, the lifting platform 53 is electrically connected with the controller 10, the lifting platform 53 is controlled by the controller 10, and the lifting platform 53 can drive the lifting platform 53 to lift to a specified height position; the knocking component 6 is arranged at the bottom of the moving end of the lifting platform 53; the mobile platform 54 is disposed at the bottom rear side of the top rail 51, and the mobile platform 54 is electrically connected to the controller 10; the scissor lifter 55 is arranged at the bottom of the movable platform 54, the scissor lifter 55 is electrically connected with the controller 10, the scissor lifter 55 is controlled by the controller 10, and the scissor lifter 55 can drive the crushing assembly 7 to lift to a designated height position; the crushing assembly 7 is arranged at the bottom of the lifting end of the scissor lift 55.
Preferably, as shown in fig. 5, the knocking assembly 6 includes: the support frame 61, the third motor 62, the turntable 63, the spring connector 64, the connecting seat 65, the first connecting rod 66, the slot housing 67, the hammer head rod 68 and the second connecting rod 69; the supporting frame 61 is fixedly arranged at the bottom of the moving end of the lifting platform 53 along the up-down direction; the third motor 62 is arranged at the rear side of the support frame 61, the rotating end of the third motor 62 extends to the front side of the support frame 61, the third motor 62 is electrically connected with the controller 10, the third motor 62 is controlled by the controller 10, and the third motor 62 can drive the turntable 63 to rotate; the turntable 63 is disposed at the front side of the rotating end of the third motor 62; one end of the spring connector 64 is rotatably connected to the front side of the turntable 63 through a pin seat; the connecting seat 65 is rotatably connected to the front side of the other end of the turntable 63 through a pin seat; the number of the first connecting rods 66 is two, one end of each of the two first connecting rods 66 is respectively connected to the left side and the right side of the connecting seat 65 through a pin shaft in a rotating manner, and the first connecting rods 66 can rotate around the pin shaft rotation connection part of the connecting seat 65 as an axis; the slot housing 67 is provided at the front bottom end of the support frame 61; the hammer head rod 68 is inserted into the inner side of the slot casing 67 along the up-down direction; the number of the second connecting rods 69 is two, one ends of the two second connecting rods 69 are respectively connected to the left side and the right side of the left connecting seat 65 and the right side through pin shafts in a rotating mode, the other ends of the two second connecting rods 69 are respectively connected with the left side and the right side of the inner side of the top end of the hammer head rod 68 through pin shafts in a rotating mode, and the second connecting rods 69 can rotate around the positions, which are connected with the inner side of the top end of the hammer head rod 68 and the rotating connection positions of the first connecting rods 66, of the pin shafts.
As a preferred solution, as shown in fig. 6 and 7, the crushing assembly 7 comprises: the housing 71, the first rail frame 72, the second sprocket 73, the fourth motor 74, the second chain 75, the first chute seat 76, the first slider 77, the second rail frame 78, the first chute seat 79, the second slider 710, the third sprocket 711, the third chain 712, and the fifth motor 713; the tank housing 71 is installed at the bottom of the lifting end of the scissor lift 55 in the front-rear direction; the first rail frame 72 is provided at the inner middle of the tank housing 71; the number of the second chain wheels 73 is two, and the two second chain wheels 73 are respectively connected to the front end and the rear end of the inner side of the first guide rail frame 72 in a rotating way through pin shafts; the fourth motor 74 is arranged at the rear side of the top end of the tank body shell 71, the rotating end of the fourth motor 74 extends into the inner side of the first guide rail frame 72 and is fixedly connected with the axle center of the rear second chain wheel 73, the fourth motor 74 is electrically connected with the controller 10, the fourth motor 74 is controlled by the controller 10, and the fourth motor 74 can drive the second chain wheel 73 to rotate; the second chain 75 is connected to the outer sides of the front and rear two second sprockets 73 in the front-rear direction; the first chute seat 76 is sleeved on the outer side of the first guide rail frame 72 along the left-right direction, and the first chute seat 76 can horizontally move along the front-back direction of the outer side of the first guide rail frame 72; the first sliding block 77 is inserted into the inner side of the first chute seat 76, the top of the first sliding block 77 is rotationally connected with the outer side of the second chain 75 through a pin shaft, and the first sliding block 77 can horizontally move in the left-right direction of the inner cavity of the first chute seat 76; the second rail frame 78 is disposed in the inner cavity of the tank body housing 71 in the front-rear direction and is located at the outer bottom of the first rail frame 72; the first chute seat 79 is sleeved on the outer side of the second guide rail frame 78 along the left-right direction, and the first chute seat 79 can horizontally move along the front-back direction of the outer side of the second guide rail frame 78; the second slider 710 is inserted into the inner cavity of the first chute seat 79, and the second slider 710 can horizontally move in the left-right direction of the inner cavity of the first chute seat 79; the number of the third chain wheels 711 is four, and the four third chain wheels 711 are respectively connected to the top end of the inner cavity of the groove body shell 71 in a rotating way through pin shafts and are positioned at four corners of the top of the second guide rail frame 78; the third chain 712 is connected to the outer sides of the four third sprockets 711; the fifth motor 713 is arranged right in front of the top end of the tank body housing 71, the rotating end of the fifth motor 713 extends into the inner cavity of the tank body housing 71 and is fixedly connected with the axle center of the third sprocket 711, the fifth motor 713 is electrically connected with the controller 10, the fifth motor 713 is controlled by the controller 10, and the fifth motor 713 can drive the third sprocket 711 to rotate; wherein, the bottom of first slider 77 and second slider 710 all is provided with crushing means, and crushing means includes: mounting base 714, rotating frame 715, sixth motor 716, connecting base 717, direction changing transmission 718, breaking bit 719, seventh motor 720 and universal drive rod 721; the mounting seats 714 are respectively mounted at the bottoms of the first slider 77 and the second slider 710 in the up-down direction; the number of the rotating frames 715 is two, and the two third chain wheels 711 are respectively connected to the upper end and the lower end of the front side of the mounting seat 714 in a rotating way through pin shafts; the sixth motor 716 is mounted on the left side of the mounting seat 714, the rotating end of the sixth motor 716 is fixedly connected with the axle center of the top rotating frame 715, the sixth motor 716 is electrically connected with the controller 10, the sixth motor 716 is controlled by the controller 10, and the sixth motor 716 can drive the rotating frame 715 at the corresponding position to rotate clockwise or anticlockwise; the connecting seat 717 is rotatably connected to the inner sides of the front ends of the two rotating frames 715 along the up-down direction through a pin shaft; the direction-changing driver 718 is arranged at the top end of the front side of the connecting seat 717, and the direction-changing driver 718 can change the driving direction of the universal driving rod 721; the breaking drill 719 is connected to the bottom of the output end of the direction-changing driver 718 along the up-down direction by screws; the seventh motor 720 is rotatably connected to the top end of the inner side of the mounting seat 714 through a pin shaft, the seventh motor 720 is electrically connected with the controller 10, the seventh motor 720 is controlled by the controller 10, and the seventh motor 720 can rotate inside the mounting seat 714; one end of the universal driving rod 721 is fixedly connected to the rotating end of the seventh motor 720, the other end of the universal driving rod 721 is fixedly connected to the input end of the connection seat 717, and the universal driving rod 721 can keep driving after the connection seat 717 moves.
The working principle is as follows:
step 1: the control controller 10 starts the hoisting machine 2, the external casting sand box is hoisted to the position above the sand box fixing mechanism 4 in the sand box processing mechanism shell 1 under the cooperation of the hoisting machine 2, the sand box is hoisted to the designated height position, the worker controls the controller 10 to start the first motor 45 and the electric push rod 419, the first motor 45 drives one side transmission belt piece 46 to rotate, the transmission shaft coupling 44 drives the screws in the two side screw assemblies 43 to rotate under the transmission of the transmission belt piece 46, the screw nuts in the two side screw assemblies 43 drive the corresponding position upper base 47 to move inwards under the limiting action of the limiting wheel 48, the two side placing grooves 416 are moved to the sand box outside the hoisting machine 2, the hoisting fixation of the sand box is released, the front and rear side electric push rods 419 shorten the corresponding position upper fixing frame 418 to move inwards in the inner cavity of the slot frame 417, and the fixing frame 418 fixes the end position of the sand box;
step 2: the worker control controller 10 starts the moving platform 54, the scissor lift 55, the fourth motor 74, the fifth motor 713, the sixth motor 716 and the seventh motor 720, the moving platform 54 moves horizontally along the head rail 51 and drives the scissor lift 55 to drive the crushing assembly 7 to move above the sand box, the scissor lift 55 stretches to drive the crushing assembly 7 to descend to the inner cavity of the sand box, the fourth motor 74 and the fifth motor 713 respectively drive the second chain wheel 73 and the third chain wheel 711 at corresponding positions to rotate in opposite directions, the second chain 75 and the third chain 712 are respectively driven by the second chain wheel 73 and the third chain wheel 711 at corresponding positions and are driven by the limiting function to rotate in opposite directions, and the second chain 75 and the third chain 712 respectively drive the first sliding block 77 and the second sliding block 710 to move in opposite directions in circumference, the first slide block 77 moves left and right in the inner cavity of the first slide groove seat 76 and simultaneously moves the first slide groove seat 76 back and forth along the first guide rail frame 72, the second slide block 710 moves left and right in the inner cavity of the first slide groove seat 79 and simultaneously moves the first slide groove seat 79 back and forth along the second guide rail frame 78, the first slide block 77 and the second slide block 710 respectively drive the crushing components at corresponding positions to synchronously move circumferentially in opposite directions, the sixth motor 716 drives the rotating frame 715 at the corresponding position to rotate downwards, the connecting seat 717 drives the crushing drill bit 719 to move downwards to contact with resin sand in the sand box under the limiting effect of the rotating frame 715 at the other side, the seventh motor 720 drives the universal transmission rod 721 to rotate, the crushing drill bit 719 is driven to rotate under the transmission of the universal transmission rod 721 and through the change of the direction-changing transmission device 718, the crushing of the resin sand in the sand box is realized into a block structure with smaller size, the air purifier 3 is started by the worker control controller 10, the air purifier 3 filters dust in the sand box processing mechanism shell 1;
step 3: after the crushing is completed, the worker controls the controller 10 to start the second motor 413, the double-shaft moving platform 52, the lifting platform 53 and the third motor 62; the second motor 413 drives the first sprocket 414 at the corresponding position to rotate in the front-back two-side direction, the large sprocket 412 is driven to rotate under the transmission of the chain 415, the large sprocket 412 overturns the sand box through the placing groove 416 and the fixing frame 418 under the limit action of the roller seat 49 and the grooved pulley 411, the double-shaft moving platform 52 drives the knocking component 6 to move in the front-back and left-right horizontal directions along the top rail 51 through the lifting platform 53, the lifting platform 53 drives the knocking component 6 to lift to the designated height position, the knocking component 6 further moves circumferentially on the surface of the sand box shell, the third motor 62 drives the turntable 63 to rotate, the turntable 63 drives one end of the spring connector 64 to move circumferentially, and the connecting seat 65 is driven to move circumferentially under the cooperation of the spring connector 64, so that the connecting seat 65 drives the hammer rod 68 to reciprocate up and down in the slot shell 67 through the first connecting rod 66 and the second connecting rod 69, and the hammer rod 68 knocks the sand box shell, and resin sand adhered in the sand box shell is dropped;
step 4: resin sand in the sand box enters the elevator 9 from the discharge groove 8, the elevator 9 is started by the controller 10 controlled by staff, and the elevator 9 lifts the resin sand in the sand box to a specified position.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A resin sand treatment line for steel casting, comprising:
a sand box processing mechanism housing (1);
a controller (10) arranged on the side surface of the sand box processing mechanism shell (1);
the lifting machine (2) is arranged at the rear side of the interior of the sand box processing mechanism shell (1); the hoisting machine (2) is electrically connected with the controller (10);
the sand box treatment mechanism comprises two air purifiers (3), wherein the two air purifiers (3) are embedded in the front side and the rear side of the top end of the inner cavity of the sand box treatment mechanism shell (1) respectively, and the air purifiers (3) are electrically connected with a controller (10);
a discharge groove (8) is formed in the center of the bottom of the inner cavity of the sand box processing mechanism shell (1);
the lifting machine (9) is arranged on the right side of the bottom end of the inner cavity of the sand box processing mechanism shell (1), the lifting machine (9) is communicated with the inner cavity of the discharge groove (8), and the lifting machine (9) is electrically connected with the controller (10);
the sand box fixing mechanism (4) is arranged at the bottom end of the inner cavity of the sand box processing mechanism shell (1) and is positioned at the outer side of the discharge groove (8);
the cleaning mechanism (5) is arranged at the top of the inner cavity of the sand box processing mechanism shell (1) and is positioned above the sand box fixing mechanism (4).
2. A resin sand handling line for steel casting according to claim 1, wherein the flask fixing mechanism (4) comprises:
the number of the ground rails (41) is two, and the two ground rails (41) are respectively arranged at the bottom of the inner cavity of the sand box processing mechanism shell (1) along the front-back direction and are positioned at the left side and the right side above the discharge groove (8);
the number of the mounting frames (42) is two, and the two mounting frames (42) are respectively arranged at the bottom of the inner cavity of the sand box processing mechanism shell (1) along the front-back direction and positioned at the front-back two sides of the upper middle part of the discharge groove (8);
the screw rod assemblies (43), the number of the screw rod assemblies (43) is two, the two screw rod assemblies (43) are respectively arranged in the inner cavities of the front mounting frame (42) and the rear mounting frame (42), and the shaft centers of the screw rod screws in the two screw rod assemblies (43) extend out of the inner sides of the front mounting frame (42) and the rear mounting frame (42);
the shaft coupling (44) is locked at the inner ends of the shaft centers of the screw rods in the front screw rod assembly (43) and the rear screw rod assembly;
the first motor (45) is arranged at the front side and at the rear side of the inner cavity of the mounting frame (42), the rotating end of the first motor (45) extends out of the outer wall of the mounting frame (42), and the first motor (45) is electrically connected with the controller (10);
one end of the transmission belt piece (46) is arranged at the rear side of the rotating end of the first motor (45), and the other end of the transmission belt piece (46) is fixedly connected with the outer side of the axle center of the coupler (44);
the number of the bases (47) is two, the two bases (47) are respectively arranged above the front mounting frame (42) and the rear mounting frame (42), and the bottoms of the front and the rear bases (47) are respectively connected with screw nuts in the front and the rear screw assemblies (43);
the limiting wheels (48), the number of the limiting wheels (48) is two, the number of each limiting wheel (48) is four, the two limiting wheels (48) are respectively arranged at four corners of the bottom ends of the front base (47) and the rear base (47), and the outer parts of the limiting wheels (48) are clamped with the top ends of the ground rails (41);
wherein, the top of two front and back bases (47) is provided with fixed upset unit.
3. A resin sand treatment line for steel casting according to claim 2, wherein the fixed turning unit comprises:
the number of the roller seats (49) is two, and the two roller seats (49) are respectively arranged at the left side and the right side of the top end of the base (47);
the bracket (410) is arranged at the top end of the base (47) through the bracket and is positioned at the outer sides of the middle parts of the left roller seat (49) and the right roller seat (49);
a grooved wheel (411) rotatably connected to the inner end of the bracket (410) through a bearing;
a large chain wheel (412) which is clamped at the inner sides of the left and right roller seats (49) and the grooved wheel (411);
the second motor (413) is arranged at the top of the base (47), and the second motor (413) is electrically connected with the controller (10);
a first sprocket (414) disposed inside a rotating end of the second motor (413);
one end of the chain (415) is connected to the outer side of the first chain wheel (414), and the other side of the chain (415) is connected with the outer side of the large chain wheel (412);
a placement groove (416) which is formed on the inner side of the large chain wheel (412);
the number of the slot frames (417) is two, and the two slot frames (417) are respectively embedded at the left side and the right side of the bottom end of the large chain wheel (412);
the fixing frames (418) are spliced at the outer sides of the left slot frame (417) and the right slot frame (417);
the electric push rods (419), the number of the electric push rods (419) is two, the two electric push rods (419) are respectively arranged at the inner bottom ends of the left slot frame and the right slot frame (417), the telescopic ends of the electric push rods (419) are fixedly connected with the inner sides of the bottom ends of the fixing frames (418), and the electric push rods (419) are electrically connected with the controller (10).
4. A resin sand treatment line for steel casting according to claim 3, characterized in that the cleaning mechanism (5) comprises:
a top rail (51) arranged on the top of the inner cavity of the sand box processing mechanism shell (1) along the front-back direction;
the double-shaft moving platform (52) is arranged at the front side of the bottom of the top rail (51), and the double-shaft moving platform (52) is electrically connected with the controller (10);
the lifting platform (53) is arranged on the front side of the double-shaft moving platform (52), and the lifting platform (53) is electrically connected with the controller (10);
the knocking component (6) is arranged at the bottom of the moving end of the lifting platform (53);
the movable platform (54) is arranged at the rear side of the bottom of the top rail (51), and the movable platform (54) is electrically connected with the controller (10);
the scissor type lifter (55) is arranged at the bottom of the mobile platform (54), and the scissor type lifter (55) is electrically connected with the controller (10);
and the crushing assembly (7) is arranged at the bottom of the lifting end of the scissor lifter (55).
5. A resin sand treatment line for steel casting according to claim 4, characterized in that the tapping assembly (6) comprises:
the support frame (61) is fixedly arranged at the bottom of the moving end of the lifting platform (53) along the up-down direction;
the third motor (62) is arranged at the rear side of the supporting frame (61), the rotating end of the third motor (62) extends to the front side of the supporting frame (61), and the third motor (62) is electrically connected with the controller (10);
a turntable (63) arranged in front of the rotating end of the third motor (62);
one end of the spring connector (64) is rotatably connected to the front side of the turntable (63) through a pin shaft seat;
the connecting seat (65) is rotationally connected to the front side of the other end of the rotary table (63) through a pin shaft seat;
the two first connecting rods (66) are arranged, and one ends of the two first connecting rods (66) are respectively connected to the left side and the right side of the connecting seat (65) in a rotating mode through pin shafts;
a slot housing (67) provided at the front bottom end of the support frame (61);
the hammer head rod (68) is inserted into the inner side of the slot shell (67) along the up-down direction;
the number of the second connecting rods (69) is two, one ends of the two second connecting rods (69) are respectively connected to the left side and the right side of the left connecting seat (65) through pin shafts in a rotating mode, and the other ends of the two second connecting rods (69) are respectively connected with the left end and the right end of the inner side of the top end of the hammer head rod (68) through pin shafts in a rotating mode.
6. A resin sand treatment line for steel casting according to claim 5, characterized in that the crushing assembly (7) comprises:
a tank housing (71) mounted at the bottom of the lifting end of the scissor lift (55) in the front-rear direction;
the first guide rail frame (72) is arranged in the middle of the inner side of the groove body shell (71);
the two second chain wheels (73) are respectively connected to the front end and the rear end of the inner side of the first guide rail frame (72) in a rotating way through pin shafts;
the fourth motor (74) is arranged at the rear side of the top end of the groove body shell (71), the rotating end of the fourth motor (74) extends into the inner side of the first guide rail frame (72) and is fixedly connected with the axle center of the rear side second sprocket (73), and the fourth motor (74) is electrically connected with the controller (10);
a second chain (75) connected to the outer sides of the front and rear two second sprockets (73) in the front-rear direction;
the first chute seat (76) is sleeved on the outer side of the first guide rail frame (72) along the left-right direction;
the first sliding block (77) is inserted into the inner side of the first chute seat (76), and the top of the first sliding block (77) is rotationally connected with the outer side of the second chain (75) through a pin shaft;
the second guide rail frame (78) is arranged in the inner cavity of the groove body shell (71) along the front-back direction and is positioned at the bottom of the outer side of the first guide rail frame (72);
the first chute seat (79) is sleeved on the outer side of the second guide rail frame (78) along the left-right direction;
the second sliding block (710) is inserted into the inner cavity of the first chute seat (79);
the number of the third chain wheels (711) is four, and the four third chain wheels (711) are respectively connected to the top end of the inner cavity of the groove body shell (71) in a rotating way through pin shafts and are positioned at four corners of the top of the second guide rail frame (78);
a third chain (712) connected to the outer sides of the four third sprockets (711);
the fifth motor (713) is arranged right in front of the top end of the groove body shell (71), the rotating end of the fifth motor (713) extends into the inner cavity of the groove body shell (71) and is fixedly connected with the axle center of the third sprocket (711), and the fifth motor (713) is electrically connected with the controller (10);
wherein the bottom ends of the first sliding block (77) and the second sliding block (710) are respectively provided with a crushing part.
7. A resin sand treatment line for steel casting according to claim 6, wherein the crushing member comprises:
the mounting seat (714) is respectively arranged at the bottoms of the first sliding block (77) and the second sliding block (710) along the up-down direction;
the number of the rotating frames (715) is two, and the two third chain wheels (711) are respectively connected to the upper end and the lower end of the front side of the mounting seat (714) in a rotating way through pin shafts;
the sixth motor (716) is arranged on the left side of the mounting seat (714), the rotating end of the sixth motor (716) is fixedly connected with the axle center of the top rotating frame (715), and the sixth motor (716) is electrically connected with the controller (10);
the connecting seat (717) is rotationally connected to the inner sides of the front ends of the two rotating frames (715) along the up-down direction through a pin shaft;
the direction-changing driver (718) is arranged at the top end of the front side of the connecting seat (717);
the crushing drill bit (719) is connected to the bottom of the output end of the turning transmission device (718) along the up-down direction through screws;
the seventh motor (720) is rotationally connected to the top end of the inner side of the mounting seat (714) through a pin shaft, and the seventh motor (720) is electrically connected with the controller (10);
one end of the universal transmission rod (721) is fixedly connected to the rotating end of the seventh motor (720), and the other end of the universal transmission rod (721) is fixedly connected with the input end of the connecting seat (717).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410105354.6A CN117620077B (en) | 2024-01-25 | 2024-01-25 | Resin sand treatment line for casting steel castings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410105354.6A CN117620077B (en) | 2024-01-25 | 2024-01-25 | Resin sand treatment line for casting steel castings |
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| CN117620077B CN117620077B (en) | 2024-04-19 |
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| CN117620077B (en) | 2024-04-19 |
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