A foam mold casting equipment and its process

Abstract

This invention belongs to the field of casting technology, specifically relating to a foam mold casting equipment and its process, including a CNC engraving machine. The CNC engraving machine comprises a transmission frame, a dual-axis moving frame, a lifting device, and an engraving head. The dual-axis moving frame is movably mounted on the transmission frame, the lifting device is mounted on the moving end of the dual-axis moving frame, and the engraving head is mounted on the lifting end of the lifting device. The engraving head includes a rotary machine, a mounting frame, a leak preventer, and a rotating head. The rotary machine is mounted on the lifting end of the lifting device, and the mounting frame is rotatably mounted on the rotating end of the rotary machine. This invention provides a foam mold casting equipment where, during engraving, foam blocks are placed on the transmission frame, and the dual-axis moving frame, in conjunction with the lifting device, drives the rotating head to cut. The rotary machine can adjust the angle of the rotating head for engraving, and while the rotating head rotates, it simultaneously sucks in debris through a suction port, achieving simultaneous engraving and debris suction, preventing debris from flying everywhere.

Description

Technical Field

[0001] This invention belongs to the field of casting technology, specifically relating to a foam mold casting equipment and its process. Background Technology

[0002] Lost foam casting is a casting technique that uses foam molds placed into a casting mold, filled with dry sand, and then pouring liquid metal into the foam mold. This casting technique has many advantages.

[0003] However, current foam manufacturing uses CNC engraving machines for engraving, which produces a lot of debris. Therefore, a chip blowing device is usually needed to blow away the debris. However, when using the blowing method, the debris flies everywhere, which affects the operation of the CNC engraving machine. In addition, some debris falls back onto the foam, causing the forging debris to form protrusions on the finished product, which requires additional grinding. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a foam mold casting equipment and process, which can ensure that chips are sucked up while carving, and prevent chips from flying everywhere.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a foam mold casting equipment, characterized in that: it includes a CNC engraving machine, the CNC engraving machine including a transmission frame, a dual-axis moving frame, a lifting device, and an engraving head, the dual-axis moving frame being movably mounted on the transmission frame, the lifting device being mounted on the moving end of the dual-axis moving frame, and the engraving head being mounted on the lifting end of the lifting device, the engraving head including a rotary machine, a mounting frame, a leak preventer, and a rotary head, the rotary machine being mounted on the lifting end of the lifting device, the mounting frame being rotatably mounted on the rotating end of the rotary machine, and the leak preventer being mounted on the mounting frame. Inside, the rotating head is rotatably mounted on the mounting bracket and is rotatably mounted to the bottom of the leak preventer. The rotating head is hollow and communicates with the interior of the leak preventer. The leak preventer is connected to a negative pressure source. The bottom of the rotating head is a rough-surfaced engraving block with a rough surface. The side wall of the rotating head has multiple suction ports above the rough-surfaced engraving block, and the suction ports communicate with the interior of the rotating head. A drive motor for driving the rotating head to rotate and engrave is mounted on one side of the mounting bracket. The symmetrical side walls of the suction ports are inclined inwards towards the interior of the rotating head to form cutting edges.

[0006] The leak preventer includes a leak preventer bucket, a sealing cap, and two sealing plates. The mounting frame has a receiving cavity for accommodating the leak preventer bucket, which is placed inside the receiving cavity. The sealing cap is rotatably sealed on the leak preventer bucket. The bottom of the leak preventer bucket has a through hole communicating with a rotating head. The bottom inside the leak preventer bucket has rotating frames on both sides of the through hole. The two sealing plates are rotatably mounted on the rotating frames, and the facing surfaces of the two sealing plates are in contact with each other and cover the through hole.

[0007] The transmission frame includes a frame, a first rotating roller, and a second rotating roller. Both the first and second rotating rollers are rotatably mounted on the frame. The frame is equipped with a first motor and a second motor that independently drive the first and second rotating rollers, respectively. Multiple first drive wheels are coaxially arranged on the first rotating roller, and these multiple first drive wheels are equidistantly arranged along the length of the first rotating roller. Multiple first auxiliary wheels are rotatably arranged on the second rotating roller corresponding to the positions of the multiple first drive wheels. A first transmission belt is driven and connected to the first drive wheels and the first auxiliary wheels. A second drive wheel is provided on the second rotating roller between two adjacent first auxiliary wheels. A second auxiliary wheel is rotatably arranged on the first rotating roller corresponding to the position of the second drive wheel. A second transmission belt is driven and connected to the second drive wheel and the second auxiliary wheel. Both the first and second transmission belts are equipped with clamping plates.

[0008] The first rotating roller is provided with a first limiting plate on both sides of the second auxiliary wheel, and the second rotating roller is provided with a second limiting plate on both sides of the first auxiliary wheel.

[0009] Both the first auxiliary wheel and the second auxiliary wheel have ball bearings on their inner rings.

[0010] The dual-axis moving frame includes a track moving seat and a horizontal drive. The top of the transmission frame is provided with a track, the track moving seat is movably placed on the track, the horizontal drive is mounted on the track moving seat, and the rotating machine is mounted on the horizontal moving end of the horizontal drive.

[0011] It also includes a debris cleaning machine for further removing residual debris from the foam block. The debris cleaning machine includes a transition conveyor, a protective chamber, and two debris blowing assemblies. The transition conveyor is located at the output of the conveyor frame, and the protective chamber is located at the output of the transition conveyor. The protective chamber is equipped with a conveyor belt that docks with the transition conveyor. The two debris blowing assemblies are symmetrically arranged in the protective chamber, and the air blowing ends of the two debris blowing assemblies face each other.

[0012] The transition conveyor includes a fixed frame, a guide rail, and a conveyor belt. The fixed frame is installed at the output of the conveyor frame, the guide rail is installed on the fixed frame, a drive frame is movably mounted on the guide rail, and the conveyor belt is installed on the drive frame. The conveying plane of the conveyor belt is lower than the conveying plane of the conveyor frame.

[0013] The chip blowing assembly includes a lifting frame, a horizontal moving frame, a telescopic cylinder, a mounting base, and a chip blowing head. The lifting frame is installed inside the protective chamber. The horizontal moving frame is raised and lowered on the lifting frame. The telescopic cylinder is moved and mounted on the horizontal moving frame. The mounting base is installed on the telescopic end of the telescopic cylinder. The chip blowing head is mounted on the mounting base, and the mounting base is provided with an air guide pipe communicating with the chip blowing head. The mounting base is provided with a chip suction head outside the chip blowing head. The mounting base is provided with an air suction pipe communicating with the chip suction head. The chip blowing head is placed inside the chip suction head, and the length of the chip blowing head is shorter than the length of the chip suction head. The cross-section of the chip suction head is an isosceles trapezoid, and the chip suction head is made of silicone material.

[0014] The casting process includes the following steps:

[0015] A. Select foam blocks of appropriate size;

[0016] B. According to the drawings, use a CNC engraving machine to engrave the cut foam blocks and collect the engraving debris in real time;

[0017] C. Spray barrier material onto the sculpted foam block and dry it;

[0018] D. Packing, adding sand, and vacuum re-pressing;

[0019] E. Pour the mixture and allow it to cool before demolding;

[0020] F. Grind the surface of the large support structure after casting, and then temper and paint it;

[0021] After step B, further remove any remaining debris from the carved foam block to ensure that there is no debris left on the foam block.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention provides a foam mold casting equipment, which, during the carving process, places a foam block on a transfer frame, and drives a rotating head to cut it through a dual-axis moving frame in conjunction with a lifting device. The rotating machine can adjust the angle of the rotating head for carving, and while the rotating head rotates, it sucks in debris through a suction port, realizing carving and chip suction at the same time, preventing debris from flying everywhere.

[0024] 2. The present invention provides a foam mold casting equipment. When side cutting is required, the side wall of the rotating head can be aligned with the position to be cut before rotation. It can cut through the blade to achieve multiple functions, and the cut debris can be directly sucked away through the suction port to prevent flying debris.

[0025] 3. The present invention provides a foam mold casting device in which two sealing plates are sucked up and swing upward when collecting debris, thereby opening the through hole to suck up the debris. When the debris is stopped, the sealing plates lose suction and automatically fall down to cover the through hole again to achieve a seal, preventing some debris from falling back through the through hole due to loss of suction while it is still in the anti-leakage tank. The anti-leakage tank can also be removed and the sealing cover can be opened to clean the anti-leakage tank.

[0026] 4. The present invention provides a foam mold casting device in which a foam block is placed on a first transmission belt and a second transmission belt. Then, a first motor and a second motor drive a first rotating roller and a second rotating roller to rotate in opposite directions, thereby driving the first transmission belt and the second transmission belt to transmit in opposite directions through the first drive wheel and the second drive wheel, and driving the clamping plate to clamp the foam block in opposite directions to form a clamping and fixing. After the engraving is completed, the first motor and the second motor drive the first rotating roller and the second rotating roller to rotate in the same direction. The first transmission belt and the second transmission belt drive the clamping block to push the foam block to move and transmit, realizing the integration of fixed transmission and reducing the space occupation of multiple devices.

[0027] 5. The present invention provides a foam mold casting equipment in which a transition conveyor transports foam blocks into a protective chamber, and two chip blowing components simultaneously blow away debris attached to the foam blocks to ensure the surface of the foam blocks is clean.

[0028] 6. The present invention provides a foam mold casting equipment, which uses a lifting frame, a horizontal moving frame, and a telescopic cylinder to drive the mounting base to adjust the position of the chip blowing head for chip blowing. When the air blown out by the chip blowing head encounters the foam block, it will spread in all directions, and the chips will also spread in all directions. A chip suction head is set to suck up the chips that spread in all directions in a timely manner. The cross-section of the chip suction head is an isosceles trapezoid, which can completely cover the chip blowing head. The length of the chip blowing head is shorter than the length of the chip suction head, so that the chip suction head can be attached to the foam block. There is still space between the chip blowing head and the foam block for air to escape, thereby covering the area to be blown and achieving better chip suction. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the CNC engraving machine of the present invention;

[0030] Figure 2 This is a schematic diagram of the transmission frame of the present invention;

[0031] Figure 3 This is a schematic diagram of the engraving head of the present invention;

[0032] Figure 4 This is a cross-sectional structural diagram of the rotating head of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the leak-proof device of the present invention;

[0034] Figure 6 This is a schematic diagram of the internal structure of the anti-leakage bucket of the present invention;

[0035] Figure 7 This is a schematic diagram of the opening structure of the sealing cap of the present invention;

[0036] Figure 8 This is a schematic diagram of the structure of the first rotating roller and the second rotating roller of the present invention;

[0037] Figure 9 This is a schematic cross-sectional view of the first rotating roller of the present invention;

[0038] Figure 10 This is an enlarged structural schematic diagram of the first limiting plate of the present invention;

[0039] Figure 11 This is a schematic cross-sectional view of the second rotating roller of the present invention;

[0040] Figure 12 This is an enlarged structural schematic diagram of the second limiting plate of the present invention;

[0041] Figure 13 This is a schematic diagram of the debris cleaning machine of the present invention;

[0042] Figure 14 This is a schematic diagram of the transition transmission mechanism of the present invention;

[0043] Figure 15 This is a schematic diagram of the protective compartment of the present invention;

[0044] Figure 16 This is a schematic diagram of the structure of the chip blowing assembly of the present invention.

[0045] In the diagram, the markings are as follows: 1. Transmission frame; 101. Frame; 102. First rotating roller; 103. Second rotating roller; 104. First drive wheel; 105. First auxiliary wheel; 106. First transmission belt; 107. Second drive wheel; 108. Second auxiliary wheel; 109. Second transmission belt; 1010. Clamping plate; 1011. First limiting plate; 1012. Second limiting plate; 1013. Ball bearing.

[0046] 2. Dual-axis moving frame; 3. Lifting device;

[0047] 4. Engraving head; 401. Rotating machine; 402. Mounting bracket; 403. Leakage preventer; 404. Rotating head; 405. Rough surface engraving block; 406. Suction port; 407. Cutting edge; 408. Leakage preventer; 409. Sealing cover; 4010. Sealing plate; 4011. Through hole.

[0048] 5. Debris cleaner; 501. Transition conveyor; 502. Protective chamber; 503. Debris blowing assembly; 504. Conveyor belt; 505. Fixing frame; 506. Guide rail; 507. Conveyor belt; 508. Drive frame; 509. Lifting frame; 5010. Horizontal moving frame; 5011. Telescopic cylinder; 5012. Mounting base; 5013. Debris blowing head; 5014. Air guide pipe; 5015. Debris suction head; 5016. Suction pipe. Detailed Implementation

[0049] To make the above features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0050] like Figures 1-16 As shown, this embodiment provides a foam mold casting equipment, including a CNC engraving machine. The CNC engraving machine includes a transmission frame 1, a dual-axis moving frame 2, a lifting device 3, and an engraving head 4. The dual-axis moving frame 2 is movably mounted on the transmission frame 1. The lifting device 3 is mounted on the moving end of the dual-axis moving frame 2. The engraving head 4 is mounted on the lifting end of the lifting device 3. The engraving head 4 includes a rotary machine 401, a mounting frame 402, a leak preventer 403, and a rotating head 404. The rotary machine 401 is mounted on the lifting end of the lifting device 3. The mounting frame 402 is rotatably mounted on the rotating end of the rotary machine 401. The leak preventer 403 is installed inside the mounting frame 402. The rotating head 404 is rotatably mounted on... The rotating head 404 is mounted on the mounting bracket 402 and rotates around the bottom of the leak preventer 403. The rotating head 404 is hollow and communicates with the interior of the leak preventer 403. The leak preventer 403 is connected to a negative pressure source. The bottom of the rotating head 404 is a rough-surfaced engraving block 405. The surface of the rough-surfaced engraving block 405 is rough, that is, multiple grooves are evenly distributed on the rough surface, and protrusions are formed between adjacent grooves. The side wall of the rotating head 404 has multiple suction ports 406 above the rough-surfaced engraving block 405. The suction ports 406 communicate with the interior of the rotating head 404. A drive motor for driving the rotating head 404 to rotate and engrave is mounted on one side of the mounting bracket 402. During engraving, the foam block is placed on the transfer frame 1, and the rotating head 404 is driven by the dual-axis moving frame 2 and the lifting device 3 to cut. The rotating machine 401 can adjust the angle of the rotating head 404 for engraving. While the rotating head 404 rotates, it sucks in debris through the suction port 406, achieving simultaneous engraving and debris suction to prevent debris from flying everywhere. Specifically, the symmetrical side walls of the suction port 406 are inclined inward towards the inside of the rotating head 404 to form cutting edges 407. When side cutting is required, the side walls of the rotating head 404 can be aligned with the position to be cut before rotating, enabling cutting through the cutting edges 407 to achieve multiple functions. Furthermore, the cut debris can be directly sucked away through the suction port 406 to prevent flying debris.

[0051] Further, the leak preventer 403 includes a leak preventer 408, a sealing cap 409, and two sealing plates 4010. The mounting bracket 402 has a receiving cavity for accommodating the leak preventer 408, which is placed inside the receiving cavity. The sealing cap 409 is rotatably sealed to the leak preventer 408. The bottom of the leak preventer 408 has a through hole 4011 communicating with the rotating head 404. Rotating frames are respectively provided on both sides of the through hole 4011 at the bottom inside the leak preventer 408. The two sealing plates 4010 are rotatably mounted on the rotating frames, and the facing surfaces of the two sealing plates 4010 are in contact with each other and cover the through hole 4011. Specifically, the bottom of the leak preventer 408 has a connecting pipe placed inside the rotating head 404, and the sealing cap 409 has a connecting pipe communicating with an external vacuum pump. When collecting debris, the two sealing plates 4010 are sucked up and swing upward, thereby opening the through hole 4011 to suck up the debris. When the debris collection stops, the sealing plates 4010 lose suction and automatically fall down to cover the through hole 4011 again to achieve a seal. This prevents some debris from falling back through the through hole 4011 when it is still in the anti-leakage bucket 408 due to the loss of suction. The anti-leakage bucket 408 can also be removed and the sealing cover 409 opened to clean the anti-leakage bucket 408.

[0052] Further, the transmission frame 1 includes a frame 101, a first rotating roller 102, and a second rotating roller 103. Both the first rotating roller 102 and the second rotating roller 103 are rotatably mounted on the frame 101. A first motor and a second motor, which independently drive the first rotating roller 102 and the second rotating roller 103 respectively, are mounted on the frame 101. Multiple first drive wheels 104 are coaxially arranged on the first rotating roller 102, and these multiple first drive wheels 104 are equidistantly arranged along the length of the first rotating roller 102. The second rotating roller 103 corresponds to the multiple first drive wheels 104. Multiple first auxiliary wheels 105 are rotatably arranged at position 4. A first transmission belt 106 is driven and connected to the first drive wheel 104 and the first auxiliary wheel 105. A second drive wheel 107 is provided on the second rotating roller 103 between two adjacent first auxiliary wheels 105. A second auxiliary wheel 108 is rotatably arranged on the first rotating roller 102 corresponding to the position of the second drive wheel 107. A second transmission belt 109 is driven and connected to the second drive wheel 107 and the second auxiliary wheel 108. A clamping plate 1010 is provided on both the first transmission belt 106 and the second transmission belt 109. The foam block is placed on the first transmission belt 106 and the second transmission belt 109. Then, the first motor and the second motor drive the first rotating roller 102 and the second rotating roller 103 to rotate in opposite directions. This drives the first drive wheel 104 and the second drive wheel 107 to drive the first transmission belt 106 and the second transmission belt 109 to transport the foam block in opposite directions. The clamping plate 1010 clamps the foam block in opposite directions to form a fixed clamping. After the engraving is completed, the first motor and the second motor drive the first rotating roller 102 and the second rotating roller 103 to rotate in the same direction. The first transmission belt 106 and the second transmission belt 109 drive the clamping block to move and transport the foam block, realizing the integration of fixed transmission and reducing the space occupation of multiple devices.

[0053] Furthermore, the first rotating roller 102 is provided with first limiting plates 1011 on both sides of the second auxiliary roller 108, and the second rotating roller 103 is provided with second limiting plates 1012 on both sides of the first auxiliary roller 105. Specifically, the inner rings of the first auxiliary roller 105 and the second auxiliary roller 108 are provided with ball bearings 1013. The first limiting plates 1011 and the second limiting plates 1012 prevent the first auxiliary roller 105 and the second auxiliary roller 108 from shifting during rotation, while the ball bearings 1013 ensure that the connected rotating rollers can rotate smoothly.

[0054] Furthermore, the dual-axis moving frame 2 includes a track moving seat and a horizontal drive. The top of the transmission frame 1 is provided with a track, the track moving seat is movably positioned on the track, the horizontal drive is mounted on the track moving seat, and the rotary machine 401 is mounted on the horizontal moving end of the horizontal drive. Specifically, the moving direction of the track moving seat is perpendicular to the driving direction of the horizontal drive. The cooperation of the track moving seat and the horizontal drive enables the engraving head 4 to move bidirectionally on the horizontal plane.

[0055] Furthermore, the system also includes a debris cleaning machine 5 for further removing residual debris from the foam block. The debris cleaning machine 5 includes a transition conveyor 501, a protective chamber 502, and two debris-blowing components 503. The transition conveyor 501 is located at the output of the transmission frame 1, and the protective chamber 502 is located at the output of the transition conveyor 501. The protective chamber 502 is equipped with a conveyor belt 504 that connects to the transition conveyor 501. The two debris-blowing components 503 are symmetrically arranged within the protective chamber 502, with their blowing ends facing each other. The transition conveyor 501 transports the foam block into the protective chamber 502, and the two debris-blowing components 503 simultaneously blow away the debris on the foam block, ensuring the surface of the foam block remains clean.

[0056] Further, the transition conveyor 501 includes a fixed frame 505, a guide rail 506, and a conveyor belt 507. The fixed frame 505 is installed at the output of the conveyor frame 1, the guide rail 506 is installed on the fixed frame 505, a drive frame 508 is movably mounted on the guide rail 506, and the conveyor belt 507 is installed on the drive frame 508. The conveying plane of the conveyor belt 507 is lower than the conveying plane of the conveyor frame 1. The drive frame 508 moves along the guide rail 506 and docks with the conveyor end of the conveyor belt 507 to transport the foam block. The drive frame 508 then moves again to dock with the conveyor end of the protective chamber 502 to transport the foam block into the protective chamber 502.

[0057] Further, the chip blowing assembly 503 includes a lifting frame 509, a horizontal moving frame 5010, a telescopic cylinder 5011, a mounting base 5012, and a chip blowing head 5013. The lifting frame 509 is installed inside the protective chamber 502. The horizontal moving frame 5010 is raised and lowered on the lifting frame 509. The telescopic cylinder 5011 is movably mounted on the horizontal moving frame 5010. The mounting base 5012 is mounted on the telescopic end of the telescopic cylinder 5011. The chip blowing head 5013 is mounted on the mounting base 5012. The mounting base 5012 is provided with an air guide pipe 5014 communicating with the chip blowing head 5013. The mounting base 5012 is provided with a chip suction head 5015 outside the chip blowing head 5013. The mounting base 5012 is provided with an air suction pipe 5016 communicating with the chip suction head 5015. The chip blowing head 5013 is placed inside the chip suction head 5015, and the length of the chip blowing head 5013 is shorter than the length of the chip suction head 5015. The cross-section of the chip suction head 5015 is an isosceles trapezoid. The chip suction head 5015 is made of silicone material. The lifting frame 509, horizontal moving frame 5010, and telescopic cylinder 5011 work together with the drive mounting base 5012 to adjust the position of the blowing head 5013 for blowing. When the air blown out by the blowing head 5013 encounters the foam block, it spreads in all directions, and the debris also spreads in all directions. The suction head 5015 is set to suck up the debris that spreads in all directions in time. The cross-section of the suction head 5015 is an isosceles trapezoid, which can completely wrap the blowing head 5013. The length of the blowing head 5013 is shorter than the length of the suction head 5015, so the suction head 5015 can be attached to the foam block. There is still space between the blowing head 5013 and the foam block for air to escape, thus covering the area to be blown and achieving better debris suction.

[0058] The casting process includes the following steps:

[0059] A. Select foam blocks of appropriate size;

[0060] B. According to the drawings, use a CNC engraving machine to engrave the cut foam blocks and collect the engraving debris in real time;

[0061] C. Spray barrier material onto the sculpted foam block and dry it;

[0062] D. Packing, adding sand, and vacuum re-pressing;

[0063] E. Pour the mixture and allow it to cool before demolding;

[0064] F. Polish the surface of the large support after casting, and then temper and paint it; specifically, after step B, further remove the remaining debris on the carved foam block to ensure that there is no debris left on the foam block.

[0065] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A foam mold casting apparatus, characterized by: The application relates to a numerical control engraving machine, which comprises a transmission frame, a double-shaft moving frame, a lifter and an engraving head, the double-shaft moving frame is movably arranged on the transmission frame, the lifter is movably arranged on the moving end of the double-shaft moving frame, and the engraving head is movably arranged on the lifting end of the lifter; the engraving head comprises a rotating machine, a mounting frame, a leakage-preventing device and a rotating head, the rotating machine is movably arranged on the lifting end of the lifter, the mounting frame is rotatably arranged on the rotating end of the rotating machine, the leakage-preventing device is arranged in the mounting frame, the rotating head is rotatably arranged on the mounting frame, and the rotating head is rotatably arranged on the bottom of the leakage-preventing device; the rotating head is hollow and is in communication with the inside of the leakage-preventing device; the leakage-preventing device is connected with a negative pressure source; the bottom of the rotating head is a rough-surface engraving block, the surface of the rough-surface engraving block is rough, the sidewall of the rotating head is provided with a plurality of suction inlets above the rough-surface engraving block, the suction inlets are in communication with the inside of the rotating head, and a driving motor for driving the rotating head to rotate and engrave is arranged on one side of the mounting frame. The transmission frame comprises a frame, a first rotating roller and a second rotating roller, the first rotating roller and the second rotating roller are rotatably arranged on the frame, first and second motors for independently driving the first and second rotating rollers are arranged on the frame, a plurality of first driving wheels are coaxially arranged on the first rotating roller, the first driving wheels are equidistantly arranged along the length of the first rotating roller, a plurality of first auxiliary wheels are rotatably arranged on the second rotating roller at positions corresponding to the first driving wheels, first transmission belts are drivingly connected to the first driving wheels and the first auxiliary wheels, a second driving wheel is arranged between two adjacent first auxiliary wheels on the second rotating roller, a second auxiliary wheel is rotatably arranged on the first rotating roller at a position corresponding to the second driving wheel, second transmission belts are drivingly connected to the second driving wheel and the second auxiliary wheel, and clamping plates are arranged on the first and second transmission belts. First limiting plates are arranged on the two sides of the second auxiliary wheel on the first rotating roller, and second limiting plates are arranged on the two sides of the first auxiliary wheel on the second rotating roller. Ball bearings are arranged in the inner rings of the first and second auxiliary wheels.

2. A foam mold casting apparatus according to claim 1, wherein: The leakage-preventing device comprises a leakage-preventing barrel, a sealing cover and two sealing plates, the mounting frame is provided with a containing cavity for containing the leakage-preventing barrel, the leakage-preventing barrel is arranged in the containing cavity, the sealing cover is rotatably arranged on the leakage-preventing barrel, the bottom of the leakage-preventing barrel is provided with a through hole in communication with the rotating head, rotating frames are arranged on the bottom of the inside of the leakage-preventing barrel at the two sides of the through hole, and the two sealing plates are rotatably arranged on the rotating frames, and the opposite surfaces of the two sealing plates are in close contact and cover the through hole.

3. A foam mold casting apparatus as defined in claim 1, wherein: The double-shaft moving frame comprises a track moving seat and a transverse horizontal driver, the top of the transmission frame is provided with a track, the track moving seat is movably arranged on the track, and the transverse horizontal driver is arranged on the track moving seat.

4. A foam mold casting apparatus as defined in claim 1, wherein: The application further comprises a debris cleaning machine for further removing the debris remaining on the foam block, which comprises a transition conveyor, a protective bin and two debris blowing assemblies.

5. A foam mold casting apparatus as defined in claim 4, wherein: The transition conveyor comprises a fixing frame, a guide rail and a conveying belt.

6. A foam mold casting apparatus as defined in claim 4, wherein: The debris blowing assembly comprises a lifting frame, a horizontal moving frame, an extension cylinder, a mounting seat and a debris blowing head.

7. A casting process based on the foaming mold casting apparatus according to any one of claims 1 to 6, characterized in that, The application comprises the following steps: A. selecting a foam block with appropriate size; B. using a numerical control engraving machine to engrave the foam block after cutting according to the drawing, and collecting the engraved debris in real time; C. spraying a barrier material on the foam block after engraving and drying; D. boxing, adding sand and vacuum re-pressing; E. pouring and cooling and demolding; F. surface polishing and tempering and painting the large support after pouring. The debris remaining on the engraved foam block is further removed to ensure that there is no debris remaining on the foam block.

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