A new type of lost foam casting production line and casting method

Abstract

The present invention discloses a novel lost foam casting production line and casting method for castings, belonging to the field of casting technology. A novel lost foam casting production line for castings includes a production line body, a bottom plate is provided at the end of the production line body, and further includes: a conveying mechanism, the conveying mechanism is provided on the bottom plate, and is used to convey a V-shaped frame on which castings are placed, the V-shaped frame is provided with a plurality of grooves, and a guide rod connected to the V-shaped frame in a sliding manner via a support plate on the bottom plate; a swing assembly, the swing assembly is provided on the conveying mechanism, and is used to drive the V-shaped frame to rotate circumferentially with the guide rod as the center; a cooling box, the cooling box is fixed on the bottom plate, and a spray cooling mechanism is provided in the cooling box; the present invention drives the casting to swing back and forth by the V-shaped frame, so that the spray cooling mechanism can fully cool the casting and efficiently remove the quartz sand on the surface of the casting, thereby improving the cooling effect and removal effect of the casting, thereby improving the production efficiency of the casting.

Description

Technical Field

[0001] The present invention relates to the field of casting technology, in particular to a novel lost foam casting production line and a casting method. Background Art

[0002] Lost foam casting is a new casting method that combines paraffin wax or foam models of similar size and shape to the casting into a model cluster, brushes refractory paint and dries it, buries it in dry quartz sand and vibrates it to shape it, and pours it under negative pressure to vaporize the model. Liquid metal occupies the model position, and after solidification and cooling, it forms a casting. After the lost foam casting is completed, the casting needs to be removed from the quartz sand.

[0003] In the prior art, the invention patent with patent application number CN202221848177.3 discloses a separated lost foam casting production line, which includes a production line body, a bottom plate fixedly connected to the front side of the production line body, a cooling box provided on the top of the bottom plate, and a cooling mechanism provided on the top of the cooling box; the cooling mechanism includes a water tank, a water pump and a water-passing plate, the bottom of the water-passing plate is fixedly connected to the top of the cooling box, the bottom of the water tank is fixedly connected to the top of the water-passing plate, and the bottom of the water pump is fixedly connected to the top of the water-passing plate, which to a certain extent reduces the residual heat on the surface of the casting. The quartz sand is removed and the temperature remaining after molding is cooled down, which is convenient for storing the casting and performing the next processing; however, in the actual operation process, since the casting placed on the slide is stationary when entering the cooling box, the water flow sprayed from the water spray hole cannot remove the quartz sand attached to the lower side of the casting and the side where the casting and the slide are in contact, and the lower side of the casting cannot be cooled down, so the temperature remaining after the casting is molded is cooled down slowly. The staff still needs to cool the casting a second time and clean the quartz sand on the outside of the casting a second time, which is time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a new type of lost foam casting production line and casting method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A novel lost foam casting production line for castings includes a production line body, an end of which is provided with a bottom plate, and further includes:

[0007] A conveying mechanism is provided on the bottom plate and is used to convey a V-shaped frame on which castings are placed. The V-shaped frame is provided with a plurality of grooves. A guide rod connected to the bottom plate through a support plate and slidably connected to the V-shaped frame is provided.

[0008] A swing assembly, the swing assembly being provided on the conveying mechanism and being used to drive the V-shaped frame to rotate circumferentially around the guide rod;

[0009] A cooling box, the cooling box being fixed on the bottom plate and having a spray cooling mechanism provided therein; and

[0010] A water supply assembly is arranged on the top of the cooling box and is used to provide clean water to the spray cooling mechanism.

[0011] Preferably, the conveying mechanism includes support plates fixed at both ends of the base plate, and a screw is rotatably connected between the two support plates. A driving motor for driving the screw to rotate is fixed on one of the support plates, and a sleeve is threadedly connected to the outer side of the screw, and the sleeve is movably connected to the V-shaped frame through a swinging assembly.

[0012] Preferably, the swing assembly includes a side plate fixed on the sleeve, the side plate is rotatably connected to a rotating shaft, a driven gear is provided on the rotating shaft, a driving gear is rotatably connected to the sleeve and meshes with the driven gear, the driving gear is slidably connected to the screw, a crank shaft is provided on the rotating shaft, a collar is movably connected to the crank shaft, and a connecting rod is provided between the collar and the V-shaped frame.

[0013] Preferably, a guide bar is fixedly provided on the inner side wall of the driving gear, and a sliding groove for the guide bar to slide is provided on the screw.

[0014] Preferably, a buffer plate is rotatably connected to the groove of the V-shaped frame via a first pin shaft, and a first torsion spring for resetting and rotating the buffer plate is sleeved on the first pin shaft.

[0015] Preferably, the spray cooling mechanism includes an arc-shaped seat fixed in the cooling box by a connecting plate, sprockets are rotatably connected on both sides of the arc-shaped seat, a transmission chain is provided between the two sprockets, a movable seat is fixed on the transmission chain, and the movable seat is movably connected to a telescopic rod through a rotating shaft, an arc-shaped plate coaxially arranged with the arc-shaped seat is fixed in the cooling box, and one end of the telescopic rod away from the movable seat slides on the arc-shaped plate, and a nozzle connected to the water supply assembly is provided at the bottom of the telescopic rod.

[0016] Preferably, a transmission rod is fixed on the sprocket, and synchronous wheels are provided on the transmission rod and the screw rod, and a synchronous belt is provided between the two synchronous wheels.

[0017] Preferably, the nozzle is rotatably connected to the bottom of the telescopic rod via a second pin shaft, the second pin shaft is sleeved with a second torsion spring for driving the nozzle to reset and rotate, and the arc plate is fixed with a plurality of blocking rods that resist the movement of the nozzle.

[0018] Preferably, the water supply assembly includes a water tank fixedly mounted on the top of the cooling box, a water pump is fixedly mounted on the water tank, and a water outlet end of the water pump is connected to a water pipe connected to a nozzle.

[0019] The present invention also discloses a casting method of a novel lost foam casting production line, comprising the following steps:

[0020] S1: Take the formed casting out of the quartz sand and place it on a V-shaped frame on the front end bottom plate of the production line body, with the casting leaning against one side of the V-shaped frame;

[0021] S2: Then the drive motor is controlled to operate, the output shaft of the drive motor drives the screw to rotate, and the sleeve threadedly connected to the screw drives the V-shaped frame and the casting on the V-shaped frame to move into the cooling box through the swing assembly;

[0022] S3: When the sleeve moves axially along the screw, the driving gear rotates with the screw and meshes with the driven gear on the rotating shaft. The crankshaft at the end of the driven gear drives the collar to rotate. The collar drives the V-shaped frame to swing back and forth around the guide rod through the connecting rod, causing the casting against one side of the V-shaped frame to swing back and forth. The outer surface of the casting will not always fit the V-shaped frame.

[0023] S4: When the screw rotates, it drives the transmission rod to rotate through the synchronous wheel and the synchronous belt. When the transmission rod rotates, it drives the sprocket to rotate. When the sprocket rotates, it drives the transmission chain to move. The transmission chain drives the moving seat to move along the arc seat, so that the moving seat drives the nozzle to move back and forth left and right through the telescopic rod, achieving comprehensive cooling of the casting surface and removal of quartz sand. In addition, because the casting swings left and right on the V-shaped frame, the water flow sprayed by the nozzle can fully impact the surface of the casting;

[0024] S5: When the telescopic rod moves along the arc seat with the movable seat, the nozzle at the bottom of the telescopic rod intermittently abuts against the baffle provided on the arc plate, and the nozzle cooperates with the second torsion spring to swing back and forth relative to the telescopic rod, so that the nozzle impacts the quartz sand on the surface of the casting at different angles, thereby comprehensively cooling and cleaning the formed casting.

[0025] Compared with the prior art, the present invention provides a new lost foam casting production line and casting method, which has the following beneficial effects:

[0026] 1. This new lost foam casting production line and casting method uses a swing assembly to flip the V-shaped frame to drive the casting to swing back and forth, so that the casting will not always be in contact with the placement surface. This allows the spray cooling mechanism to fully cool the casting and efficiently remove quartz sand from the casting surface, improving the cooling and cleaning effects of the casting, thereby improving casting production efficiency.

[0027] 2. This new lost foam casting production line and casting method utilizes a conveying mechanism and a swinging assembly to work in conjunction with each other. When the conveying mechanism drives the casting to move and load via a V-shaped frame, the swinging assembly automatically operates and utilizes the V-shaped frame to flip and drive the casting to swing back and forth. This allows the above components to function as a continuously moving linkage mechanism, allowing the various components to cooperate and relate to each other to achieve coordinated motion, making the cooling and cleaning of the molded castings more consistent and smoother.

[0028] 3. This new lost foam casting production line and casting method utilizes a flexible buffer plate on the V-shaped frame. This buffer plate can be used to buffer and unload the downward pressure of the casting when the V-shaped frame flips and drives the casting to move left and right. This prevents the casting from violently colliding with the V-shaped frame during flipping, which could damage the casting or reduce the service life of the V-shaped frame. This ensures the production quality of the casting and the service life of the V-shaped frame.

[0029] 4. This new lost foam casting production line and casting method uses a transmission chain to drive the moving base to move, and the moving base drives the nozzle to move left and right through the telescopic rod. When the nozzle moves left and right, it intermittently contacts the blocking rod. The nozzle can move back and forth in conjunction with the second torsion spring, so that the nozzle can cool and clean the casting at different spray angles, ensuring the cooling and cleaning effect of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0031] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0032] Figure 3 This is a schematic structural diagram of the top of the bottom plate of the present invention;

[0033] Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure of the middle part A;

[0034] Figure 5 For the present invention Figure 3 A schematic diagram of the partially enlarged structure of part B in the middle;

[0035] Figure 6 Schematic diagram of the outer structure of the swing assembly of the present invention;

[0036] Figure 7 Schematic diagram of the external structure of the sleeve of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the driving gear and the screw rod of the present invention;

[0038] Figure 9It is a structural schematic diagram of the V-shaped frame of the present invention;

[0039] Figure 10 It is a structural schematic diagram of the spray cooling mechanism of the present invention;

[0040] Figure 11 For the present invention Figure 10 Schematic diagram of the partially enlarged structure of the middle C part;

[0041] Figure 12 This is a schematic structural diagram of the nozzle 14 of the present invention when it is initially in contact with the blocking rod 131;

[0042] Figure 13 It is a structural diagram of the nozzle 14 of the present invention when it is completely in contact with the blocking rod 131.

[0043] In the figure: 1. Production line body; 2. Bottom plate; 201. Guide rod; 3. V-shaped frame; 301. Groove; 4. Cooling box; 401. Connecting plate; 5. Support plate; 501. Screw; 5011. Slide; 502. Driving motor; 503. Sleeve; 6. Side plate; 601. Rotating shaft; 602. Driven gear; 7. Driving gear; 701. Guide bar; 8. Crank shaft; 801. Collar; 802. Connecting rod; 9. Buffer plate; 10. Arc seat; 11. Sprocket; 111. Transmission chain; 12. Moving seat; 121. Telescopic rod; 13. Arc plate; 131. Baffle rod; 14. Sprinkler; 15. Transmission rod; 16. Synchronous wheel; 17. Water tank; 171. Water pump; 172. Water pipe. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0046] Example 1: Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 6 A novel lost foam casting production line for castings includes a production line body 1, a bottom plate 2 is provided at the end of the production line body 1, and further includes:

[0047] The conveying mechanism is arranged on the bottom plate 2 and is used to convey the V-shaped frame 3 on which the castings are placed. The V-shaped frame 3 is provided with a plurality of grooves 301. The bottom plate 2 is connected to a guide rod 201 which is slidably connected to the V-shaped frame 3 through a support plate;

[0048] The swing assembly is provided on the conveying mechanism and is used to drive the V-shaped frame 3 to rotate circumferentially around the guide rod 201;

[0049] A cooling box 4 is fixed on the bottom plate 2 and is provided with a spray cooling mechanism; and

[0050] The water supply component is arranged on the top of the cooling box 4 and is used to provide clean water to the spray cooling mechanism.

[0051] The quartz sand of the present invention is the quartz sand of the present invention, and the quartz sand of the present invention is the quartz sand of the present invention.

[0052] Example 2: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 A new type of lost foam casting production line for castings, based on Example 1, further, the conveying mechanism includes support plates 5 fixedly mounted on both ends of the base plate 2, a screw 501 is rotatably connected between the two support plates 5, a driving motor 502 for driving the screw 501 to rotate is fixed on one of the support plates 5, a sleeve 503 is threadedly connected to the outer side of the screw 501, and the sleeve 503 is movably connected to the V-shaped frame 3 through a swinging assembly.

[0053] Specifically, when the conveying mechanism is working, the drive motor 502 is controlled to operate, and the output shaft of the drive motor 502 drives the screw 501 to rotate on the support plate 5. When the screw 501 rotates, the sleeve 503 moves along the axial direction of the screw 501. When the sleeve 503 moves, the V-shaped frame 3 is driven to move through the swing assembly, so that the casting on the V-shaped frame 3 moves toward the cooling box 4, and the casting is cooled and the quartz sand is removed.

[0054] Example 3: Reference Figure 3 、 Figure 6 、 Figure 7 and Figure 8 , a new type of lost foam casting production line for castings, based on Example 2, further, the swing component includes a side plate 6 fixedly mounted on the sleeve 503, the side plate 6 is rotatably connected to the rotating shaft 601, the rotating shaft 601 is provided with a driven gear 602, the sleeve 503 is rotatably connected to a driving gear 7 that meshes with the driven gear 602, the driving gear 7 is slidably connected to the screw 501, a crank shaft 8 is provided on the rotating shaft 601, a collar 801 is movably connected to the crank shaft 8, and a connecting rod 802 is provided between the collar 801 and the V-shaped frame 3.

[0055] Furthermore, a guide bar 701 is fixedly provided on the inner side wall of the driving gear 7 , and a sliding groove 5011 for the guide bar 701 to slide is provided on the screw rod 501 .

[0056] Specifically, when the sleeve 503 moves axially along the screw 501, it drives the driving gear 7 to move synchronously. When the driving gear 7 moves, it rotates with the screw 501 under the action of the guide bar 701. The screw 501 drives the driving gear 7 to engage with the driven gear 602 on the rotating shaft 601 for transmission. The crank shaft 8 at the end of the driven gear 602 drives the collar 801 to rotate. The collar 801 drives the V-shaped frame 3 to swing back and forth around the guide rod 201 through the connecting rod 802, so that the casting abutting one side of the V-shaped frame 3 flips and swings back and forth. The outer surface of the casting will not always be in contact with the V-shaped frame 3, and there will be no dead angle for flushing of the spray cooling mechanism. The spray cooling mechanism can fully cool the casting and efficiently remove the quartz sand on the surface of the casting, thereby improving the cooling effect and quartz sand removal effect of the casting, thereby improving the casting production efficiency.

[0057] Example 4: Reference Figure 2 、 Figure 3 、 Figure 6 and Figure 9 A new type of lost foam casting production line for castings, based on Example 3, further, a buffer plate 9 is rotatably connected to the groove 301 of the V-shaped frame 3 through a first pin shaft, and a first torsion spring is sleeved on the first pin shaft for resetting and rotating the buffer plate 9.

[0058] Specifically, by elastically arranging a buffer plate 9 on the V-shaped frame 3, when the V-shaped frame 3 flips and drives the casting to move left and right, the buffer plate 9 buffers and unloads the downward pressure when the casting flips, thereby avoiding a violent collision between the casting and the V-shaped frame 3 when flipping, causing damage to the casting or the V-shaped frame 3, thereby ensuring the production quality of the casting and the service life of the V-shaped frame 3.

[0059] Example 5: Reference Figure 3 、 Figure 10 and Figure 11 , a new type of lost foam casting production line for castings, based on Example 4, further, a spraying cooling mechanism includes an arc-shaped seat 10 fixedly arranged in the cooling box 4 through a connecting plate 401, and sprockets 11 are rotatably connected on both sides of the arc-shaped seat 10. A transmission chain 111 is arranged between the two sprockets 11, and a movable seat 12 is fixed on the transmission chain 111. The movable seat 12 is movably connected to a telescopic rod 121 through a rotating shaft, and an arc plate 13 coaxially arranged with the arc seat 10 is fixed in the cooling box 4, and one end of the telescopic rod 121 away from the movable seat 12 slides on the arc plate 13, and a nozzle 14 connected to the water supply component is provided at the bottom of the telescopic rod 121.

[0060] Furthermore, a transmission rod 15 is fixedly provided on the sprocket 11 , and a synchronous wheel 16 is provided on both the transmission rod 15 and the screw rod 501 , and a synchronous belt is provided between the two synchronous wheels 16 .

[0061] Specifically, when the screw 501 rotates, the transmission rod 15 is driven to rotate through the synchronous wheel 16 and the synchronous belt. When the transmission rod 15 rotates, the sprocket 11 is driven to rotate. When the sprocket 11 rotates, the transmission chain 111 is driven to move. The transmission chain 111 drives the movable seat 12 to move along the arc seat 10, so that the movable seat 12 drives the nozzle 14 to move back and forth left and right through the telescopic rod 121, so that the nozzle 14 flushes the casting from left to right and then from right to left. Since the casting swings left and right on the V-shaped frame 3, the water flow sprayed by the nozzle 14 can fully impact the surface of the casting, and the casting will not always fit with the V-shaped frame 3, thereby achieving comprehensive cooling of the casting surface and removal of quartz sand.

[0062] Example 6: Reference Figure 10 、 Figure 11 、 Figure 12 and Figure 13 A new type of lost foam casting production line for castings, based on Example 5, further, the nozzle 14 is rotatably connected to the bottom of the telescopic rod 121 through a second pin shaft, and a second torsion spring for driving the nozzle 14 to reset and rotate is sleeved on the second pin shaft, and a plurality of blocking rods 131 that resist the movement of the nozzle 14 are fixed on the arc plate 13.

[0063] Specifically, when the telescopic rod 121 moves along the arc-shaped seat 10 with the movable seat 12, the nozzle 14 at the bottom of the telescopic rod 121 will intermittently abut against the baffle 131 provided on the arc plate 13, and the side curved surface of the nozzle 14 moves backward when abutting against the curved surface at the end of the baffle 131. When the nozzle 14 does not abut against the baffle 131, it resets and moves forward under the action of the second torsion spring, so that the nozzle 14 swings back and forth relative to the telescopic rod 121, so that the nozzle 14 impacts the quartz sand on the surface of the casting at different angles, which facilitates the loosening of the quartz sand tightly adhered to the surface of the casting, ensures the cleaning effect and efficiency of the quartz sand on the outside of the casting, and improves the production quality and efficiency of the casting.

[0064] Example 7: Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5 A new type of lost foam casting production line for castings, based on Example 6, further, a water supply component includes a water tank 17 fixedly mounted on the top of the cooling box 4, a water pump 171 is fixedly mounted on the water tank 17, and the water outlet end of the water pump 171 is connected to a water pipe 172 connected to the nozzle 14.

[0065] Specifically, the water tank 17 is filled with clean water, and the water supply component controls the operation of the water pump 171. The water pump 171 extracts the clean water in the water tank 17 and supplies water to the nozzle 14 through the water pipe 172 to ensure that the nozzle 14 continues to cool the casting and clean it.

[0066] The present invention also discloses a casting method of a novel lost foam casting production line, comprising the following steps:

[0067] S1: Take the formed casting out from the quartz sand and place it on the V-shaped frame 3 on the front end bottom plate 2 of the production line body 1, with the casting leaning against one side of the V-shaped frame 3;

[0068] S2: The drive motor 502 is then controlled to operate. The output shaft of the drive motor 502 drives the screw 501 to rotate. The sleeve 503 threadedly connected to the screw 501 drives the V-shaped frame 3 and the casting on the V-shaped frame 3 to move into the cooling box 4 through the swing assembly.

[0069] S3: When the sleeve 503 moves axially along the screw 501, the driving gear 7 rotates with the screw 501 and meshes with the driven gear 602 on the rotating shaft 601. The crank shaft 8 at the end of the driven gear 602 drives the collar 801 to rotate. The collar 801 drives the V-shaped frame 3 to swing back and forth around the guide rod 201 through the connecting rod 802, causing the casting abutting one side of the V-shaped frame 3 to swing back and forth. The outer surface of the casting is not always in contact with the V-shaped frame 3.

[0070] S4: When the screw 501 rotates, it drives the transmission rod 15 to rotate through the synchronous wheel 16 and the synchronous belt. When the transmission rod 15 rotates, it drives the sprocket 11 to rotate. When the sprocket 11 rotates, it drives the transmission chain 111 to move. The transmission chain 111 drives the movable seat 12 to move along the arc-shaped seat 10, so that the movable seat 12 drives the nozzle 14 to move back and forth left and right through the telescopic rod 121, thereby achieving comprehensive cooling of the casting surface and removing quartz sand. In addition, since the casting swings left and right on the V-shaped frame 3, the water flow sprayed by the nozzle 14 can fully impact the surface of the casting;

[0071] S5: When the telescopic rod 121 moves along the arc-shaped seat 10 with the movable seat 12, the nozzle 14 at the bottom of the telescopic rod 121 intermittently abuts against the blocking rod 131 provided on the arc plate 13, and the nozzle 14 cooperates with the second torsion spring to swing back and forth relative to the telescopic rod 121, so that the nozzle 14 impacts the quartz sand on the surface of the casting at different angles, thereby comprehensively cooling and cleaning the formed casting.

[0072] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A novel lost foam casting production line for castings, comprising a production line body (1), wherein a bottom plate (2) is provided at the end of the production line body (1), characterized in that: Also includes: A conveying mechanism, the conveying mechanism being arranged on the bottom plate (2) and being used for conveying a V-shaped frame (3) on which castings are placed, the V-shaped frame (3) being provided with a plurality of grooves (301), and the bottom plate (2) being connected to a guide rod (201) in sliding connection with the V-shaped frame (3) via a support plate; A swing assembly, the swing assembly being arranged on the conveying mechanism and being used to drive the V-shaped frame (3) to rotate circumferentially around the guide rod (201); A cooling box (4), the cooling box (4) being fixedly mounted on the bottom plate (2), and a spray cooling mechanism being provided in the cooling box (4); and A water supply assembly, the water supply assembly being arranged on the top of the cooling box (4) and being used to provide clean water to the spray cooling mechanism; The conveying mechanism comprises support plates (5) fixedly mounted at both ends of the bottom plate (2), a screw (501) being rotatably connected between the two support plates (5), a driving motor (502) for driving the screw (501) to rotate being fixedly mounted on one of the support plates (5), a sleeve (503) being threadedly connected to the outer side of the screw (501), and the sleeve (503) being movably connected to the V-shaped frame (3) via a swinging assembly; The swing assembly comprises a side plate (6) fixed on the sleeve (503), a rotating shaft (601) being rotatably connected to the side plate (6), a driven gear (602) being provided on the rotating shaft (601), a driving gear (7) being rotatably connected to the sleeve (503) and meshing with the driven gear (602), the driving gear (7) being slidably connected to the screw (501), a crank shaft (8) being provided on the rotating shaft (601), a collar (801) being movably connected to the crank shaft (8), and a connecting rod (802) being provided between the collar (801) and the V-shaped frame (3).

2. A new type of lost foam casting production line according to claim 1, characterized in that: A guide bar (701) is fixedly provided on the inner side wall of the driving gear (7), and a sliding groove (5011) for the guide bar (701) to slide is provided on the screw rod (501).

3. A new type of lost foam casting production line according to claim 2, characterized in that: A buffer plate (9) is rotatably connected in the groove (301) of the V-shaped frame (3) via a first pin shaft, and a first torsion spring for returning and rotating the buffer plate (9) is sleeved on the first pin shaft.

4. A new type of lost foam casting production line according to claim 3, characterized in that: The spray cooling mechanism includes an arc seat (10) fixedly arranged in the cooling box (4) through a connecting plate (401), sprockets (11) are rotatably connected to both sides of the arc seat (10), a transmission chain (111) is provided between the two sprockets (11), a movable seat (12) is fixedly provided on the transmission chain (111), the movable seat (12) is movably connected to a telescopic rod (121) through a rotating shaft, an arc plate (13) coaxially arranged with the arc seat (10) is fixedly provided in the cooling box (4), one end of the telescopic rod (121) away from the movable seat (12) slides on the arc plate (13), and a nozzle (14) connected to a water supply component is provided at the bottom of the telescopic rod (121).

5. A new type of lost foam casting production line according to claim 4, characterized in that: A transmission rod (15) is fixedly provided on the sprocket (11), and a synchronous wheel (16) is provided on both the transmission rod (15) and the screw rod (501), and a synchronous belt is provided between the two synchronous wheels (16).

6. A new type of lost foam casting production line according to claim 5, characterized in that: The nozzle (14) is rotatably connected to the bottom of the telescopic rod (121) via a second pin shaft, and a second torsion spring for driving the nozzle (14) to reset and rotate is sleeved on the second pin shaft. A plurality of blocking rods (131) for resisting the movement of the nozzle (14) are fixed on the arc plate (13).

7. A new type of lost foam casting production line according to claim 6, characterized in that: The water supply assembly comprises a water tank (17) fixedly mounted on the top of the cooling box (4); a water pump (171) is fixedly mounted on the water tank (17); and a water outlet of the water pump (171) is connected to a water pipe (172) connected to the nozzle (14).

8. A casting method for a new type of lost foam casting production line according to claim 7, characterized in that: The following steps are involved: S1: Take the formed casting out from the quartz sand and place the casting on a V-shaped frame (3) on the front end bottom plate (2) of the production line body (1), with the casting resting on one side of the V-shaped frame (3); S2: Then, the driving motor (502) is controlled to operate, and the output shaft of the driving motor (502) drives the screw (501) to rotate, and the sleeve (503) threadedly connected to the screw (501) drives the V-shaped frame (3) and the casting on the V-shaped frame (3) to move into the cooling box (4) through the swing assembly; S3: When the sleeve (503) moves axially along the screw (501), the driving gear (7) rotates along with the screw (501) and meshes with the driven gear (602) on the rotating shaft (601). The crank shaft (8) at the end of the driven gear (602) drives the collar (801) to rotate. The collar (801) drives the V-shaped frame (3) to swing back and forth around the guide rod (201) through the connecting rod (802), so that the casting abutting one side of the V-shaped frame (3) swings back and forth, and the outer surface of the casting does not always fit the V-shaped frame (3). S4: When the screw (501) rotates, the transmission rod (15) is driven to rotate through the synchronous wheel (16) and the synchronous belt. When the transmission rod (15) rotates, the sprocket (11) is driven to rotate. When the sprocket (11) rotates, the transmission chain (111) is driven to move. The transmission chain (111) drives the movable seat (12) to move along the arc seat (10), so that the movable seat (12) drives the nozzle (14) to move back and forth left and right through the telescopic rod (121), thereby achieving comprehensive cooling of the casting surface and removal of quartz sand. Moreover, since the casting swings left and right on the V-shaped frame (3), the water flow sprayed by the nozzle (14) can fully impact the surface of the casting; S5: When the telescopic rod (121) moves along the arc seat (10) with the movable seat (12), the nozzle (14) at the bottom of the telescopic rod (121) intermittently abuts against the blocking rod (131) provided on the arc plate (13), and the nozzle (14) cooperates with the second torsion spring to swing back and forth relative to the telescopic rod (121), so that the nozzle (14) impacts the quartz sand on the surface of the casting at different angles, thereby comprehensively cooling and cleaning the formed casting.

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