Sand core transfer device

Abstract

The invention discloses a sand core transfer device, and relates to the technical field of casting, the sand core transfer device comprises a movable base, the movable base comprises a vehicle body, a liftable supporting plate is mounted above the vehicle body, and the two sides of the supporting plate are respectively provided with a supporting structure for supporting a sand core body; the supporting structure comprises a swing plate, supporting frames in a vertical state are fixed to the top side of the vehicle body side by side, the swing plate and the supporting plate are combined and driven by an electric air cylinder, the supporting angle can be flexibly adjusted according to the irregular shape of the sand core, the supporting plate is tightly attached to the outer side face of the sand core, and the flexibility and variability of a supporting air bag are improved. Therefore, the supporting device can be in full contact with the irregular outer surface of the sand core, multiple contact supporting points are generated, and a wrapping supporting state is formed. Under the condition of multi-point stress, the sand core is kept highly stable in the transfer process, the problems of shaking, inclination, damage and the like are effectively avoided, the transfer reliability is remarkably improved, and continuous and stable production of an intelligent casting island is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of casting, and in particular to a sand core transfer device. Background Art

[0002] With the development of intelligent foundry industry, intelligent casting island has become the core production unit of modern foundry. In the efficient production process of intelligent casting island, sand core transfer is crucial.

[0003] In the existing documents, a sand core transfer auxiliary device with the announcement number CN119973050A includes: an upper guide assembly, which includes a lifting ear and a horizontal guide channel; a lifting drive member provided below the upper guide assembly and a vertical pressing member connected to its output end; two relatively arranged cantilevers, the upper ends of which are limited by the horizontal guide channel to slide in the horizontal direction, a group of inclined walls are symmetrically provided in the middle and correspondingly cooperate with the two ends of the vertical pressing member to form a wedge-shaped mechanism, and the lower ends are each connected to a horizontal clamping member; a vertical positioning portion cooperates with the bottom end face of the object to be clamped to prevent circumferential rotation; a sliding guide portion slides in the horizontal direction with the horizontal clamping member; two horizontal clamping members are arranged opposite to each other and form a clamping surface that matches the contour of the object to be clamped on the adjacent side, and the two clamping surfaces are used to wrap and fit the outer wall of the object to be clamped so that the object to be clamped is evenly stressed. The present invention ensures the stability and integrity of the sand core transfer process, improves the convenience of operation and transfer efficiency; However, traditional sand core transfer equipment has many shortcomings. Due to the irregular shape and fragile material of the sand core, traditional structures cannot fit closely to its surface, resulting in uneven force, easy shaking, tilting, and even damage, affecting the reliability of transfer. The support force is difficult to accurately control. Too much damage to the sand core, too little can cause support failure. The lack of real-time monitoring and feedback mechanism is not conducive to operator adjustment and monitoring. In addition, the diverse transfer needs and the different shapes of sand cores make it difficult for existing equipment to quickly adapt to different sand core shapes. After the transfer is completed, the waste residue is difficult to clean and the vehicle body is difficult to clean, which increases maintenance costs and reduces equipment operation efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a sand core transfer device to solve the following technical problems: the traditional structure is difficult to fit closely to its surface, resulting in uneven force, easy to shake, tilt or even damage, affecting the reliability of transfer, the support force is difficult to control accurately, too much damage to the sand core, too little lead to support failure, and the lack of real-time monitoring and feedback mechanism is not conducive to operator adjustment and monitoring. In addition, the transfer needs are diverse, and the sand cores have different shapes. It is difficult for existing equipment to quickly adapt to different sand core shapes. After the transfer is completed, the waste residue is inconvenient to clean and the vehicle body is not easy to clean, which increases maintenance costs and reduces equipment operation efficiency.

[0005] The object of the present invention can be achieved by the following technical solution: A sand core transfer device comprises: a body, a liftable support plate is installed above the body, and support structures for supporting the sand core body are respectively provided on both sides of the support plate; The support structure includes a swing plate, a vertical support frame fixed in parallel on the top side of the vehicle body, a swing plate is rotatably mounted between the two support frames via a pin shaft, an electric cylinder is mounted on the side of the swing plate, the end of the action rod of the electric cylinder passes through the swing plate, and the support plate is fixed to the action end of the electric cylinder; A supporting airbag is attached to the bottom side of the supporting plate, wherein a pressure limiting structure is fixed to the top side of the supporting plate, wherein the pressure limiting structure comprises a closed cylinder, wherein a communicating air hole is opened at the bottom of the closed cylinder, and the communicating air hole is connected to the supporting airbag via an air tube; A rod hole is provided at the top of the closed cylinder body, and a movable rod is slidably installed in the rod hole. A piston is fixed to the bottom end of the movable rod, and the outer wall of the piston slides tightly against the inner wall of the closed cylinder body. An extrusion spring is provided on the periphery of the movable rod, and the top of the extrusion spring is fixed to the top inner wall of the closed cylinder body, and the bottom end of the extrusion spring is fixed to the top side of the piston.

[0006] As a further solution of the present invention: a guide cylinder is fixed on the top of the closed cylinder, an electrode ring is provided on the inner wall of the guide cylinder, an electrode cap is fixed on the top of the movable rod, the circumferential surface of the electrode cap is in sliding contact with the inner surface of the electrode ring, an indicator light is installed on the swing plate, and the electrode cap, electrode ring, indicator light and storage battery are connected to form a circuit.

[0007] As a further solution of the present invention: two positioning holes are provided on the swing plate, and the two positioning holes are respectively located on both sides of the electric cylinder; two limiting rods are fixed on the top side of the supporting plate, and the limiting rods are slidably arranged inside the positioning holes.

[0008] As a further solution of the present invention: the supporting structure also includes a telescopic column, a lifting spring is arranged inside the telescopic column along the central axis, and a lifting rod is vertically inserted into the center hole of the telescopic column, and the top end of the lifting spring is fixed to the bottom end face of the lifting rod, a vertical limiting hole is opened on the top circumferential wall of the telescopic column, and a sliding screw perpendicular to the lifting rod is fixed to the bottom of the lifting rod, the sliding screw is slidably arranged in the limiting hole, and a locking nut is assembled on the sliding screw for rotation, and the locking nut is located on the outer side wall of the telescopic column.

[0009] As a further solution of the present invention: a sliding hole is opened on the support frame, the sliding rod is arranged horizontally, and the two ends of the sliding rod are respectively slidably set in the two sliding holes, a connecting seat is fixed on the bottom side of the swing plate, and a connecting piece is rotatably installed on the connecting seat through a pin shaft, the top end of the lifting rod is cross-connected with the middle part of the sliding rod, and a connecting sleeve is sleeved on the outside of the sliding rod, and the other end of the connecting piece is fixed on the outer surface of the connecting sleeve.

[0010] As a further solution of the present invention: lifting cylinders are vertically installed at the four corners of the bottom side of the vehicle body, and the top ends of the action rods of the four lifting cylinders are used to connect the four corner supports of the same support plate. A flip structure is installed inside the support plate, and the flip structure includes a flip plate. A flip groove is opened inside the support plate, and a flip plate is installed in the flip groove by rotating the damping shaft. Assembly grooves are opened at both ends of the vehicle body, and the ends of the damping shaft are both installed in the assembly grooves. A turbine is installed on the outside of one end of the damping shaft, and the turbine is located in the assembly groove.

[0011] As a further solution of the present invention: a mounting bracket is installed on the bottom side of the support plate, the mounting bracket is located below the assembly slot, a flip motor is installed on the bottom side of the mounting bracket, the output shaft of the flip motor passes through the mounting bracket, a worm is fixed to the output shaft of the mounting bracket, and the turbine and worm are engaged for transmission.

[0012] As a further solution of the present invention: a mounting screw hole is provided on the top side of the flip plate, and a support tray is assembled on the top side of the flip plate. Connecting ears are fixed at both ends of the support tray, and the mounting holes of the connecting ears correspond to the mounting screw holes. The bottom end of the mounting screw is rotated and assembled in the mounting screw hole, and the end cap of the mounting screw is squeezed on the connecting ear to facilitate the replacement of the support tray.

[0013] As a further solution of the present invention: a controller and a storage battery are installed on the vehicle body, the controller is used to control the rotation of the supporting structure, electric cylinder and flip motor, and a control program for simultaneous operation of the four support frames is set in the controller.

[0014] Beneficial effects of the present invention: This sand core transfer equipment is specifically designed for the sand core transfer needs of intelligent casting islands, effectively resolving many of the drawbacks of traditional equipment in the casting process. Its unique support structure, through the combination of a swing plate and a support plate, and driven by an electric cylinder, can flexibly adjust the support angle according to the irregular shape of the sand core, allowing the support plate to fit closely to the outer surface of the sand core. The softness and variability of the support airbags allow for full contact with the irregular outer surface of the sand core, creating multiple contact support points and forming a wrap-around support state. Under the condition of multiple force points, the sand core remains highly stable during transfer, effectively avoiding problems such as shaking, tilting, and damage, significantly improving transfer reliability and ensuring continuous and stable production on the intelligent casting island.

[0015] The ingenious design of the pressure-limiting structure enables precise control of the supporting force. When the supporting airbag contacts and squeezes the sand core, gas is introduced into the closed cylinder to push the piston to compress the extrusion spring. The circuit structure composed of the electrode ring, electrode cap and indicator light monitors the deformation of the supporting airbag in real time. When the deformation reaches the set value, the indicator light lights up, intuitively displaying the extrusion contact status, ensuring that the supporting force is appropriate, preventing excessive force from damaging the sand core or insufficient force from causing support failure. At the same time, it provides clear visual feedback to the operator, facilitating timely adjustment and monitoring of the transfer process, improving transfer safety, and further improving the production efficiency and product quality of the intelligent casting island.

[0016] The supporting pallet adopts a replaceable structure and can be quickly replaced according to the shape of the sand core to meet the diversified transportation needs of the intelligent casting island. After the transfer is completed, the flip structure can be completely turned over to pour out the waste slag. The body surface is smooth and easy to clean, which improves the equipment maintenance efficiency, reduces the cleaning and maintenance time and labor costs, ensures the long-term stable operation of the equipment, and adapts to the high-intensity production rhythm of the intelligent casting island.

[0017] The electrode ring's special design allows the electrode cap to pass through, leaving space for the piston to move. Under the restoring force of the extrusion spring, any swinging motion during transfer acts as a buffer, shielding the sand core from direct impact, protecting its integrity, and reducing the risk of damage. This improves product qualification and transfer quality, enabling the Smart Casting Island to achieve high-quality casting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the first perspective three-dimensional structure of the present invention; Figure 2 is a schematic diagram of a second perspective three-dimensional structure of the present invention; Figure 3 This is a schematic structural diagram of the present invention when the sand core body is not loaded; Figure 4 It is a schematic diagram of the flip structure of the present invention; Figure 5is a schematic diagram of the inner side of the support structure of the present invention; Figure 6 It is a schematic diagram of the outer side of the support structure in the present invention; Figure 7 yes Figure 4 Schematic diagram of the enlarged structure of area A in the middle; Figure 8 is a schematic diagram of a pressure limiting structure; In the figure: 1. Vehicle body; 2. Support structure; 3. Lifting cylinder; 4. Support plate; 5. Sand core body; 6. Controller; 7. Turning structure; 21. Support frame; 22. Sliding rod; 23. Sliding hole; 24. Telescopic column; 25. Connecting sleeve; 26. Connecting piece; 27. Connecting seat; 28. Swing plate; 29. Limiting rod; 30. Electric cylinder; 31. Support plate; 32. Support airbag; 33. Pressure limiting structure; 34. Lifting rod; 35. Lifting spring; 36. Locking screw nut; 37. sliding screw; 38. limiting hole; 39. indicator light; 331. movable rod; 332. communicating air hole; 333. piston; 334. extrusion spring; 335. guide cylinder; 336. electrode ring; 337. electrode cap; 338. closed cylinder; 71. flip plate; 72. mounting screw; 73. connecting ear; 74. supporting plate; 75. turbine; 76. damping shaft; 77. mounting bracket; 78. flip motor; 79. flip groove; 710. worm. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 As shown, the present invention is a sand core transport device, comprising: a vehicle body 1, a liftable support plate 4 is mounted above the vehicle body 1, and support structures 2 for supporting the sand core body 5 are respectively provided on both sides of the support plate 4; when transporting the sand core, for large sand core molding pieces, a vehicle is required to assist in the transport process, and the placement posture of the sand core is ensured during the transport process, and the support structure 2 is used to support and limit the position; The supporting structure 2 includes a swing plate 28. A vertical support frame 21 is fixed in parallel on the top side of the vehicle body 1. A swing plate 28 is rotatably installed between the two support frames 21 through a pin shaft, which can achieve a certain swing angle of the swing plate 28, and can better correspond the supporting direction of the supporting plate 31 to the outer side of the transported sand core body 5. The side of the swing plate 28 is equipped with an electric cylinder 30. The end of the action rod of the electric cylinder 30 passes through the swing plate 28, and the action end of the electric cylinder 30 is fixed with a supporting plate 31. The supporting plate 31 is used to support the sand core body 5. Under the action of the electric cylinder 30, the supporting plate 31 can be pushed close to the sand core body 5 to achieve auxiliary support. A supporting airbag 32 is attached to the bottom side of the supporting plate 31. The supporting airbag 32 is in direct contact with the outer side wall of the sand core body 5. The softness and variability of the supporting airbag 32 allow for better contact with the outer side of the irregular sand core body 5, thereby creating more contact support points without causing direct collision damage to the sand core body 5. See also Figure 6 、 Figure 8 As shown, a pressure limiting structure 33 is fixed on the top side of the supporting plate 31, and the pressure limiting structure 33 includes a closed cylinder 338. A communicating air hole 332 is opened at the bottom of the closed cylinder 338. The communicating air hole 332 is connected to the supporting air bag 32 through an air pipe. By providing the air pipe, the communication between the supporting air bag 32 and the closed cylinder 338 can be achieved. After the supporting air bag 32 contacts the sand core body 5, as the supporting plate 31 is pushed, the supporting air bag 32 is squeezed and deformed, which can produce a wrapping supporting state for the sand core body 5, thereby avoiding damage to the sand core body 5. At the same time, because the supporting air bag 32 has more force points or force surfaces on the outside of the sand core body 5, the sand core body 5 can be more stable under the multi-point force state. The top of the closed cylinder 338 is provided with a rod hole, in which a movable rod 331 is slidably installed. The bottom end of the movable rod 331 is fixed with a piston 333. The outer wall of the piston 333 slides tightly against the inner wall of the closed cylinder 338, which can ensure that the closed cylinder 338 is located at the bottom space of the piston 333 and the supporting airbag 32 to form an integral space, thereby preventing the inherent gas in the supporting airbag 32 from overflowing. The periphery of the movable rod 331 is provided with an extrusion spring 334. The top of the extrusion spring 334 is fixed to the top inner wall of the closed cylinder 338, and the bottom end of the extrusion spring 334 is fixed to the top side of the piston 333. After the supporting airbag 32 contacts and squeezes the sand core body 5, the gas in the supporting airbag 32 will be introduced into the closed cylinder 338. The volume content of the gas in the cavity at the bottom of the piston 333 will increase, which can push the piston 333 upward, thereby compressing the extrusion spring 334. The extrusion spring 334 generates a restoring elastic force, which can provide thrust for the subsequent return stroke of the piston 333.

[0022] A guide cylinder 335 is fixed to the top of the closed cylinder 338. An electrode ring 336 is provided on the inner wall of the guide cylinder 335. An electrode cap 337 is fixed to the top of the movable rod 331. The circumferential surface of the electrode cap 337 is in sliding contact with the inner surface of the electrode ring 336. An indicator light 39 is mounted on the swing plate 28. The electrode cap 337, electrode ring 336, and indicator light 39 are connected to a storage battery to form a circuit. After the supporting airbag 32 contacts and squeezes the sand core body 5, the degree to which it is wrapped is determined by its deformation. For different sand core bodies 5, the support and deformation positions are different, but the amount of gas required to be squeezed out is guaranteed to be consistent, which can also ensure the support limit of different sand core bodies 5.

[0023] Two positioning holes are provided on the swing plate 28, and the two positioning holes are respectively located on both sides of the electric cylinder 30. Two limit rods 29 are fixed on the top side of the support plate 31, and the limit rods 29 are slidably set inside the positioning holes, which can ensure that the swing plate 28 and the support plate 31 are parallel structures. When the angle of the swing plate 28 is adjusted, the angle of the support plate 31 is adjusted.

[0024] When in use, the angle of the support plate 31 is adjusted by adjusting the angle of the swing plate 28. Under the action of the electric cylinder 30, the support plate 31 can be pushed close to the sand core body 5 to achieve auxiliary support. As the supporting plate 31 advances, the supporting airbag 32 directly contacts the outer side wall of the sand core body 5. By utilizing the softness and variability of the supporting airbag 32, it can better contact the outer side of the irregular sand core body 5 and generate more contact support points. After the supporting airbag 32 contacts the sand core body 5, as the supporting plate 31 is pushed, the supporting airbag 32 is squeezed and deformed, which can wrap the sand core body 5 to support it, thereby preventing damage to the sand core body 5. At the same time, because the supporting airbag 32 has more force points or force surfaces on the outside of the sand core body 5, the sand core body 5 can be more stable under the multi-point force state. After the supporting airbag 32 contacts and squeezes the sand core body 5, the degree of its wrapping is determined by its deformation. For different sand core bodies 5, the support and deformation positions are different, but the amount of gas required to be squeezed out is guaranteed to be the same, which can also ensure the support limit of different sand core bodies 5. After the supporting airbag 32 contacts and squeezes the sand core body 5, the gas in the supporting airbag 32 will be introduced into the closed cylinder 338. The volume of the gas in the cavity at the bottom of the piston 333 will increase, which can push the piston 333 upward, thereby compressing the extrusion spring 334. When the piston 333 moves upward, as the movable rod 331 rises, the electrode cap 337 at the end of the movable rod 331 gradually approaches the electrode ring 336. When the deformation of the supporting airbag 32 reaches the set value, the electrode cap 337 should contact the electrode ring 336, so that the indicator light 39 is powered on and flashes. Conversely, the power-on state of the indicator light 39 can ensure that the supporting airbag 32 and the sand core body 5 are in an extruded contact state, so that the supporting force of the supporting airbag 32 on the sand core body 5 will not cause damage to the sand core body 5, and the supporting force of the supporting airbag 32 on the sand core body 5 is effective, thereby ensuring a better supporting effect and at the same time ensuring the integrity of the sand core body 5 and reducing damage to the sand core body 5 due to transportation. At the same time, the electrode ring 336 is set to a ring structure through which the electrode cap 337 can pass. When swinging occurs, the piston 333 can have room to move. Under the restoring force of the extrusion spring 334, a buffer space can be left for swinging during transportation, which can better prevent the sand core body 5 from being directly impacted by the force and better protect the sand core body 5 during transportation. Furthermore, when the supporting airbag 32 is used as the supporting structure, its surface is relatively smooth. When there is no clamping operation, it is relatively easy to clean the smooth surface of the supporting airbag 32, and supporting residues on the surface will affect subsequent supporting operations.

[0025] Example 2: Please refer to Figure 5 、 Figure 6As shown, the supporting structure 2 also includes a telescopic column 24, the interior of the telescopic column 24 is provided with a lifting spring 35 along the central axis, and a lifting rod 34 is vertically inserted into the central hole of the telescopic column 24, and the top of the lifting spring 35 is fixed to the bottom end face of the lifting rod 34, and a vertical limiting hole 38 is opened on the top circumferential wall of the telescopic column 24, and a sliding screw 37 perpendicular to the lifting rod 34 is fixed to the bottom of the lifting rod 34, and the sliding screw 37 is slidably arranged in the limiting hole 38, and the lifting spring 35 of the limiting hole 38 is set with a certain pre-tightening force, which can push the sliding screw 37 to the highest point of the limiting hole 38 during the natural extension of the lifting spring 35, and the sliding screw 37 is rotatably assembled with a locking nut 36, which is located on the outer wall of the telescopic column 24. The positioning of the sliding screw 37 can be achieved by rotating and squeezing the locking nut 36.

[0026] See also Figure 6 As shown, a sliding hole 23 is opened on the support frame 21, and the sliding rod 22 is arranged horizontally, and the two ends of the sliding rod 22 are respectively slidably set in the two sliding holes 23. A connecting seat 27 is fixed to the bottom side of the swing plate 28. A connecting member 26 is rotatably mounted on the connecting seat 27 through a pin shaft. The top of the lifting rod 34 is cross-connected with the middle part of the sliding rod 22. A connecting sleeve 25 is sleeved on the outside of the sliding rod 22, and the other end of the connecting member 26 is fixed to the outer surface of the connecting sleeve 25. When in use, in order to adjust the supporting angle of the sand core body 5, the locking nut 36 is released by rotating, and the lifting rod 34 is pushed upward with the cooperation of the pre-tightening rebound force of the limit hole 38, so that the sliding rod 22 can slide in the sliding hole 23. When the sliding rod 22 moves upward, the locking nut 36 can be used to adjust the angle between the swing plate 28 and the support frame 21, thereby changing the angle of the swing plate 28 to adjust the angle of the supporting plate 31. After the angle is adjusted, the locking nut 36 is rotated, and the lifting rod 34 is inside the telescopic column 24, and the locking nut 36 is outside the telescopic column 24. The lifting rod 34 can be suspended with the cooperation of rotation and extrusion to adjust the supporting angle. Since the sand core body 5 to be used is the same structure, it basically does not require reciprocating high-frequency adjustment after application adjustment.

[0027] Example 3: Please refer to Figure 1-4 As shown, jacking cylinders 3 are vertically installed at the four corners of the bottom side of the vehicle body 1, and the top ends of the action rods of the four jacking cylinders 3 are used to support and connect the four corners of the same support plate 4; the height of the support plate 4 can be uniformly adjusted through the coordinated operation of the four jacking cylinders 3, so as to better adapt to the transportation operation of the sand core body 5; A flip structure 7 is installed inside the support plate 4, and the flip structure 7 includes a flip plate 71. A flip groove 79 is opened inside the support plate 4, and the flip plate 71 is rotatably installed in the flip groove 79 through the damping shaft 76. Assembly grooves are opened at both ends of the vehicle body 1, and the ends of the damping shaft 76 are both installed in the assembly grooves. A turbine 75 is installed on the outside of one end of the damping shaft 76, and the turbine 75 is located in the assembly groove.

[0028] See also Figure 7 As shown, a mounting bracket 77 is mounted on the bottom side of the support plate 4. The mounting bracket 77 is located below the assembly slot. A flip motor 78 is mounted on the bottom side of the mounting bracket 77. The output shaft of the flip motor 78 passes through the mounting bracket 77. A worm 710 is fixed to the output shaft of the mounting bracket 77. The worm 75 and the worm 710 are engaged with each other for transmission. When the sand core body 5 is supported, a supporting plate 74 matching the sand core body 5 is installed on the surface of the flip plate 71, which can provide a relatively matching support structure for the hoisting and placement of the sand core body 5; Since the present structure is applied to the bearing of different sand core bodies 5, based on the supporting device of this case, in order to achieve stable supporting operation, when the relatively flat surface of the sand core is used as the supporting force surface, it is most stable. When it is necessary to adjust the relatively flat surface of the sand core body 5 to correspond to the surface of the supporting airbag 32, it is necessary to control the operation of the flip motor 78 to drive the operation of the worm 710, which can drive the turbine 75 to rotate, thereby realizing the flipping of the flip plate 71 with the cooperation of the damping shaft 76. During the flipping process, intermittent adjustment is realized, and the flipping angle of the flip plate 71 is determined by slow calibration to ensure the supporting effect of the supporting airbag 32 on the sand core body 5 and the stable effect of transportation. And because the sand core body 5 is inherently a fragile structure, debris and residue are likely to remain in the support plate 74 during transportation. When cleaning is required, the flip groove 79 can be completely flipped to completely pour out the remaining waste, and then the waste on the smooth surface of the car body 1 can be collected and processed to improve cleaning efficiency.

[0029] See also Figure 4 As shown, the top side of the flip plate 71 is provided with a mounting screw hole, and the top side of the flip plate 71 is equipped with a support plate 74. The two ends of the support plate 74 are respectively fixed with connecting ears 73, and the mounting holes of the connecting ears 73 correspond to the mounting screw holes. The bottom end of the mounting screw 72 is rotated and assembled in the mounting screw hole, and the end cap of the mounting screw 72 is squeezed on the connecting ear 73, so that the support plate 74 is set to a replaceable structure, which can be used when transporting a multi-form sand core body 5, and can also be used for transporting a regular-form sand core body 5.

[0030] A controller 6 and a storage battery are installed on the vehicle body 1. The controller 6 is used to control the rotation of the supporting structure 2, the electric cylinder 30 and the flip motor 78. The controller 6 is also provided with a control program for the simultaneous operation of the four support frames 21, thereby realizing the power supply and control operation of the electrical equipment during the overall transportation, and there is a corresponding setting range for the deflection angle of the flip plate 71.

[0031] Working principle: In order to realize the transportation of the sand core body 5, the formed sand core body 5 is placed on the support plate 74. The surface of the flip plate 71 is equipped with a support plate 74 that matches the sand core body 5, which can provide a more matching support structure for the hoisting and placement of the sand core body 5; Since the present structure is applied to the bearing of different sand core bodies 5, based on the supporting device of this case, in order to achieve stable supporting operation, when the relatively flat surface of the sand core is used as the supporting force surface, it is most stable. When it is necessary to adjust the relatively flat surface of the sand core body 5 to correspond to the surface of the supporting airbag 32, it is necessary to control the operation of the flip motor 78 to drive the operation of the worm 710, which can drive the turbine 75 to rotate, thereby realizing the flipping of the flip plate 71 with the cooperation of the damping shaft 76. During the flipping process, intermittent adjustment is realized, and the flipping angle of the flip plate 71 is determined by slow calibration to ensure the supporting effect of the supporting airbag 32 on the sand core body 5 and the stable effect of transportation. And because the sand core body 5 is inherently a fragile structure, debris and residue are likely to remain in the support plate 74 during transportation. When cleaning is required, the flip groove 79 can be completely flipped to completely pour out the remaining waste, and then the waste on the smooth surface of the car body 1 can be collected and processed to improve cleaning efficiency.

[0032] When in use, in order to adjust the supporting angle of the sand core body 5, the locking nut 36 is released by rotating, and the lifting rod 34 is pushed upward under the cooperation of the pre-tightening rebound force of the limit hole 38, so that the sliding rod 22 can slide in the sliding hole 23. When the sliding rod 22 moves upward, the locking nut 36 can adjust the angle between the swing plate 28 and the support frame 21, thereby changing the angle of the swing plate 28 to adjust the angle of the supporting plate 31. After the angle is adjusted, the lifting rod 34 is inside the telescopic column 24 and the locking nut 36 is outside the telescopic column 24. Under the cooperation of rotation and extrusion, the lifting rod 34 can be suspended to achieve the adjustment of the supporting angle. Since the sand core body 5 to be used is the same structure, it basically does not require reciprocating high-frequency adjustment after application adjustment; When in use, the angle of the support plate 31 is adjusted by adjusting the angle of the swing plate 28. Under the action of the electric cylinder 30, the support plate 31 can be pushed close to the sand core body 5 to achieve auxiliary support. As the supporting plate 31 advances, the supporting airbag 32 directly contacts the outer side wall of the sand core body 5. By utilizing the softness and variability of the supporting airbag 32, it can better contact the outer side of the irregular sand core body 5 and generate more contact support points. After the supporting airbag 32 contacts the sand core body 5, as the supporting plate 31 is pushed, the supporting airbag 32 is squeezed and deformed, which can wrap the sand core body 5 to support it, thereby preventing damage to the sand core body 5. At the same time, because the supporting airbag 32 has more force points or force surfaces on the outside of the sand core body 5, the sand core body 5 can be more stable under the multi-point force state. After the supporting airbag 32 contacts and squeezes the sand core body 5, the degree of its wrapping is determined by its deformation. For different sand core bodies 5, the support and deformation positions are different, but the amount of gas required to be squeezed out is guaranteed to be the same, which can also ensure the support limit of different sand core bodies 5. After the supporting airbag 32 contacts and squeezes the sand core body 5, the gas in the supporting airbag 32 will be introduced into the closed cylinder 338. The volume of the gas in the cavity at the bottom of the piston 333 will increase, which can push the piston 333 upward, thereby compressing the extrusion spring 334. When the piston 333 moves upward, as the movable rod 331 rises, the electrode cap 337 at the end of the movable rod 331 gradually approaches the electrode ring 336. When the deformation of the supporting airbag 32 reaches the set value, the electrode cap 337 should contact the electrode ring 336, so that the indicator light 39 is powered on and flashes. Conversely, the power-on state of the indicator light 39 can ensure that the supporting airbag 32 and the sand core body 5 are in an extruded contact state, so that the supporting force of the supporting airbag 32 on the sand core body 5 will not cause damage to the sand core body 5, and the supporting force of the supporting airbag 32 on the sand core body 5 is effective, thereby ensuring a better supporting effect and at the same time ensuring the integrity of the sand core body 5 and reducing damage to the sand core body 5 due to transportation. At the same time, the electrode ring 336 is set to a ring structure through which the electrode cap 337 can pass. When swinging occurs, the piston 333 can have room to move. Under the restoring force of the extrusion spring 334, a buffer space can be left for swinging during transportation, which can better prevent the sand core body 5 from being directly impacted by the force and better protect the sand core body 5 during transportation. Furthermore, when the supporting airbag 32 is used as the supporting structure, its surface is relatively smooth. When there is no clamping operation, it is relatively easy to clean the smooth surface of the supporting airbag 32, and supporting residues on the surface will affect subsequent supporting operations.

[0033] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A sand core transfer device, characterized in that: include: A vehicle body (1), a liftable support plate (4) is mounted above the vehicle body (1), and support structures (2) for supporting a sand core body (5) are respectively provided on both sides of the support plate (4); The supporting structure (2) includes a swing plate (28), a vertical support frame (21) is fixed in parallel on the top side of the vehicle body (1), a swing plate (28) is rotatably mounted between the two support frames (21) via a pin shaft, an electric cylinder (30) is mounted on the side of the swing plate (28), an end of an action rod of the electric cylinder (30) passes through the swing plate (28), and a supporting plate (31) is fixed to the action end of the electric cylinder (30); A supporting airbag (32) is adhered and fixed to the bottom side of the supporting plate (31), wherein a pressure limiting structure (33) is fixed to the top side of the supporting plate (31), and the pressure limiting structure (33) includes a closed cylinder (338), and a communicating air hole (332) is opened at the bottom of the closed cylinder (338), and the communicating air hole (332) is connected to the supporting airbag (32) through an air tube; A rod hole is provided at the top of the closed cylinder (338), and a movable rod (331) is slidably installed in the rod hole. A piston (333) is fixed to the bottom end of the movable rod (331), and the outer wall of the piston (333) slides tightly against the inner wall of the closed cylinder (338). An extrusion spring (334) is provided on the periphery of the movable rod (331), and the top of the extrusion spring (334) is fixed to the top inner wall of the closed cylinder (338), and the bottom end of the extrusion spring (334) is fixed to the top side of the piston (333).

2. A sand core transfer device according to claim 1, characterized in that: A guide cylinder (335) is fixed to the top of the closed cylinder (338), an electrode ring (336) is provided on the inner wall of the guide cylinder (335), an electrode cap (337) is fixed to the top of the movable rod (331), the circumferential surface of the electrode cap (337) is in sliding contact with the inner side surface of the electrode ring (336), an indicator light (39) is installed on the swing plate (28), and the electrode cap (337), the electrode ring (336), the indicator light (39) and the storage battery are connected to form a circuit.

3. A sand core transfer device according to claim 2, characterized in that: Two positioning holes are provided on the swing plate (28), and the two positioning holes are respectively located on both sides of the electric cylinder (30); two limiting rods (29) are fixed on the top side of the supporting plate (31), and the limiting rods (29) are slidably arranged inside the positioning holes.

4. A sand core transfer device according to claim 3, characterized in that: The supporting structure (2) further comprises a telescopic column (24), wherein a lifting spring (35) is provided inside the telescopic column (24) along the central axis, and a lifting rod (34) is vertically inserted into the central hole of the telescopic column (24), and the top end of the lifting spring (35) is fixed on the bottom end face of the lifting rod (34), and a vertical limiting hole (38) is provided on the top circumferential wall of the telescopic column (24), and a sliding screw (37) perpendicular to the lifting rod (34) is fixed to the bottom of the lifting rod (34), and the sliding screw (37) is slidably provided in the limiting hole (38), and a locking nut (36) is rotatably assembled on the sliding screw (37), and the locking nut (36) is located on the outer wall of the telescopic column (24).

5. A sand core transfer device according to claim 4, characterized in that: The support frame (21) is provided with a sliding hole (23), the sliding rod (22) is arranged horizontally, and the two ends of the sliding rod (22) are respectively slidably arranged in the two sliding holes (23), the bottom side of the swing plate (28) is fixed with a connecting seat (27), and a connecting member (26) is rotatably mounted on the connecting seat (27) through a pin shaft. The top end of the lifting rod (34) is cross-connected with the middle part of the sliding rod (22), and the outer sleeve of the sliding rod (22) is provided with a connecting sleeve (25), and the other end of the connecting member (26) is fixed to the outer surface of the connecting sleeve (25).

6. A sand core transfer device according to claim 5, characterized in that: Lifting cylinders (3) are vertically installed at the four corners of the bottom side of the vehicle body (1), and the top ends of the action rods of the four lifting cylinders (3) are used to support and connect the four corners of the same support plate (4). A flip structure (7) is installed inside the support plate (4), and the flip structure (7) includes a flip plate (71). A flip groove (79) is opened inside the support plate (4), and a flip plate (71) is rotatably installed in the flip groove (79) through a damping shaft (76). Both ends of the vehicle body (1) are opened, and the ends of the damping shaft (76) are installed in the assembly groove. A turbine (75) is installed on the outside of one end of the damping shaft (76), and the turbine (75) is located in the assembly groove.

7. A sand core transfer device according to claim 6, characterized in that: A mounting frame (77) is mounted on the bottom side of the support plate (4), and the mounting frame (77) is located below the assembly slot. A flip motor (78) is mounted on the bottom side of the mounting frame (77), and an output shaft of the flip motor (78) passes through the mounting frame (77). A worm (710) is fixed to the output shaft of the mounting frame (77), and the turbine (75) and the worm (710) are engaged for transmission.

8. The sand core transfer device according to claim 6, characterized in that: The top side of the flip plate (71) is provided with a mounting screw hole, and the top side of the flip plate (71) is matched with a support plate (74), and connecting ears (73) are fixed at both ends of the support plate (74), and the mounting holes of the connecting ears (73) correspond to the mounting screw holes. The bottom end of the mounting screw rod (72) is rotated and assembled in the mounting screw hole, and the end cap of the mounting screw rod (72) acts to squeeze the connecting ear (73).

9. The sand core transfer device according to claim 1, characterized in that: A controller (6) and a storage battery are installed on the vehicle body (1). The controller (6) is used to control the rotation of the supporting structure (2), the electric cylinder (30) and the flip motor (78). A control program for simultaneously operating the four support frames (21) is provided in the controller (6).

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