Sand box closing device with guide structure

Abstract

The utility model discloses a sand box closing device with a guide structure, which relates to the technical field of sand box closing and comprises a screw rod, a guide rod I, an arrangement component, a sand box and two conveying belts, and the positioning assembly comprises a bottom block, the upper end of the bottom block is symmetrically and fixedly connected with second electric push rods, and the output ends of piston rods of the second electric push rods are fixedly connected with positioning bolts. The positioning bolts are used for guiding and positioning the two sand boxes, so that the positions of the two sand boxes can be preliminarily guided, dislocation is prevented when the two sand boxes are closed, the motor drives the connecting rod to rotate, then the synchronous belt drives the two-way threaded rod to rotate, and the two-way threaded rod is driven to rotate. The two push plates can be driven to move in the direction of the two sand boxes, the side faces of the two sand boxes can be arranged under the cooperation of the two push plates, and therefore it is guaranteed that the end faces of the two sand boxes can be accurately aligned.

Description

Technical Field

[0001] This utility model relates to the field of sand box assembly technology, specifically to a sand box assembly device with a guiding structure. Background Technology

[0002] The sand box assembly device is an indispensable piece of equipment in the sand casting process. It is mainly used to accurately and stably merge the upper and lower sand boxes together to form a complete sand mold for subsequent pouring processes. The design of the sand box assembly device is directly related to the precision and quality of the castings, and therefore it holds an extremely important position in the casting industry.

[0003] In the sand casting industry, the production of large castings usually adopts the collision molding method. This method requires the use of large sand boxes to meet the size and weight requirements of the castings. However, the positioning process between large sand boxes, especially when using the inner box cone method for box closing, faces many challenges. Specifically, due to the large volume and weight of the large sand boxes, it usually requires three operators to work together with a crane operator to carry out precise operations in order to complete the positioning of the two boxes without damaging the semi-finished products. This process is not only time-consuming and labor-intensive, but also places extremely high demands on the skills and teamwork of the operators.

[0004] In addition, to ensure their strength, large sand boxes often use a wide opening plate, which results in a certain distance between the inner cone and the outermost part of the sand box. When closing the boxes, the operator needs to observe the position of the inner cone from the side to confirm whether the two sand boxes are aligned with the preset cone. This observation method not only poses a personal safety hazard because the operator needs to be close to the large sand box and the crane's working area, but also affects the accuracy and efficiency of closing the boxes. Utility Model Content

[0005] The purpose of this invention is to provide a sand box closing device with a guiding structure to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A sand box closing device with a guiding structure includes a screw, a guide rod, a sorting assembly, a sand box, and two conveyor belts. Support frames are fixedly connected to the middle of each of the two conveyor belts. Connecting blocks are symmetrically fixedly connected to the upper parts of each support frame. The screw is rotatably connected to two adjacent connecting blocks. The guide rod is fixedly connected to two adjacent connecting blocks. A clamping assembly is slidably connected to the outer surface of the guide rod. The screw is threadedly connected to the clamping assembly. A placement platform assembly is fixedly connected to the side of one of the conveyor belts near the sorting assembly. Positioning components are fixedly connected to the upper parts of both the sorting assembly and the placement platform assembly. An insertion plate is symmetrically fixedly connected to the middle of the sand box. The positioning assembly includes a base block. An electric push rod is symmetrically fixedly connected to the upper end of the base block. A positioning bolt is fixedly connected to the output end of the piston rod of the electric push rod. The sorting assembly includes a support plate and a connecting rod. A bidirectional threaded rod is rotatably connected to the middle of the support plate. A push plate is symmetrically slidably connected to the inner cavity of the support plate. The push plate is threadedly connected to the bidirectional threaded rod. The middle of the bidirectional threaded rod is connected to the connecting rod via a synchronous belt.

[0008] The above technical solution involves symmetrically fixed insertion plates in the middle of the sand box. An electric push rod is used to move the positioning bolt upwards, pushing it into the inner cavity of the insertion plate. The positioning bolt guides and positions the two sand boxes, initially guiding their positions and preventing misalignment during assembly. A motor then drives a connecting rod to rotate, which in turn drives a bidirectional threaded rod via a synchronous belt. This causes two push plates to move towards the two sand boxes. With the cooperation of the two push plates, the sides of the two sand boxes are aligned, ensuring accurate alignment of their end faces.

[0009] A further improvement of the present invention is that the clamping assembly includes a connecting frame, a connecting block two is symmetrically fixedly connected to the connecting frame, the connecting block two on the same side is threadedly connected to the screw, the connecting block two on the same side is threadedly connected to the guide rod one, a liquid cylinder is fixedly connected to the middle of the connecting frame, a sliding plate is symmetrically slidably connected to the connecting frame, a connecting plate one is fixedly connected to the lower ends of the two sliding plates, the piston rod output end of the liquid cylinder is fixedly connected to the connecting plate one, a guide rod two is symmetrically fixedly connected to the lower part of the connecting plate, a rotating assembly is symmetrically slidably connected to the two guide rod two, an electric push rod one is symmetrically fixedly connected to the connecting plate one, and the piston rod output end of the electric push rod one on the same side is fixedly connected to the rotating assembly.

[0010] In the above technical solution, the output end of the piston rod of the electric push rod is fixedly connected to the rotating assembly, thereby enabling the electric push rod to push the rotating assembly towards the sand box. With the cooperation of the two rotating assemblies, the sand box can be clamped. Next, the output end of the piston rod of the liquid cylinder is fixedly connected to the connecting plate. Under the action of the liquid cylinder, the connecting plate moves upward, thus lifting the sand box. Then, the motor drives the screw to rotate. Since the connecting block is threadedly connected to the screw, the rotation of the screw drives the connecting block to move, thus moving the entire clamping assembly. The sand box is then transported to the upper part of the sorting assembly. Through the cooperation of the sorting assembly and the positioning assembly, the sand box is pushed to the upper position of the sorting assembly, facilitating the closing of the two sand boxes.

[0011] A further improvement of the present invention is that the rotating assembly includes a second connecting plate, the upper part of which is slidably connected to a second guide rod, the lower part of which is rotatably connected to a rotating shaft, a third connecting plate fixedly connected to the side of the rotating shaft away from the second connecting plate, and a second docking block 2 symmetrically fixedly connected to the side of the third connecting plate away from the second connecting plate, and a plurality of first docking blocks symmetrically fixedly connected to the sand box.

[0012] In the above technical solution, when the output end of the piston rod of the electric push rod pushes the rotating assembly to move towards the sand box, it will drive the docking block 2 into the inner cavity of the docking block 1, thereby clamping the sand box. The rotating shaft is fixedly connected to the connecting plate 3, and the rotating shaft is rotatably connected to the connecting plate 2. The rotating shaft is driven to rotate by the motor, which then drives the connecting plate 3 to rotate, and then drives the docking block 2 to flip. Then the docking block 2 drives the sand box to flip, which facilitates the closing of the two sand boxes.

[0013] A further improvement of the present invention is that the placement platform assembly includes a platform, and L-shaped blocks are symmetrically and fixedly connected to the side of the platform away from the sorting assembly. The two L-shaped blocks are fixedly connected to the adjacent conveyor belt. An infrared sensor is fixedly connected to one side of the upper end of the platform, and a signal receiver is fixedly connected to the side of the upper end of the platform away from the infrared sensor.

[0014] In the above technical solution, the sand box is transported to the platform by a conveyor belt. When the sand box comes into contact with the bottom block, it will block the light emitted by the infrared sensor. Then the signal receiver will not receive the light emitted by the infrared sensor, so the data can be transmitted to the controller, which will control the conveyor belt to stop running and prevent multiple sand boxes from piling up together.

[0015] A further improvement of this utility model is that: limit blocks are fixedly connected to all four sides of the upper part of the sand box, and locking components are fixedly connected to the lower ends of two of the limit blocks.

[0016] The above technical solution involves fixing limit blocks around the upper part of the sand box, which allows the inner holes of the limit blocks to align when the two sand boxes are closed. The locking assembly and the limit blocks work together to lock the position of the two sand boxes, preventing accidental movement of the two sand boxes during handling and thus affecting the quality of the casting.

[0017] A further improvement of the present invention is that the locking assembly includes a housing and a spring. A bolt is slidably connected to the inner cavity of the housing. An electromagnet is fixedly connected to the inner cavity of the housing away from the bolt. An iron core is fixedly connected to the middle of the electromagnet. The bolt is slidably connected to the iron core. A magnet is fixedly connected to the bolt near the electromagnet. The side of the spring near the magnet is fixedly connected to the magnet. The side of the spring away from the magnet is fixedly connected to the inner wall of the housing.

[0018] In the above technical solution, by energizing the electromagnet, the electromagnet generates a magnetic force. The magnetic force generated by the electromagnet repels the magnetic force of the magnet, thus pushing the magnet to move away from the electromagnet. As the magnet moves, it drives the bolt rod to move as well, pushing the bolt rod into the inner cavity of the adjacent limiting block, thereby limiting the position of the two limiting blocks. This prevents the two sand boxes from shaking unexpectedly after being closed, thus preventing the two sand boxes from shifting their positions.

[0019] A further improvement to the technical solution of this utility model is that the positioning bolt is conical.

[0020] In the above technical solution, by setting the positioning bolt to a conical shape, it is easier for the electric push rod 2 to push the positioning bolt into the inner cavity of the adjacent socket plate.

[0021] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0022] 1. This utility model provides a sand box assembly device with a guiding structure. A perforated plate is symmetrically fixedly connected to the middle of the sand box. An electric push rod pushes a positioning bolt upwards, pushing it into the inner cavity of the perforated plate. The positioning bolt guides and positions the two sand boxes, initially guiding their positions and preventing misalignment during assembly. A motor drives a connecting rod to rotate, which in turn drives a bidirectional threaded rod via a synchronous belt. This causes two push plates to move towards the two sand boxes. With the cooperation of the two push plates, the sides of the two sand boxes are aligned, ensuring accurate alignment of their end faces. This ensures the precision of assembly, prevents sand mold misalignment, and improves the quality of the castings.

[0023] 2. This utility model provides a sand box closing device with a guiding structure. An electric push rod is fixedly connected to a rotating assembly at its piston rod output end. The electric push rod pushes the rotating assembly towards the sand box, and the two rotating assemblies work together to clamp the sand box. A liquid cylinder piston rod output end is then fixedly connected to a connecting plate. The liquid cylinder causes the connecting plate to move upwards, lifting the sand box. A motor drives a screw to rotate. Since a connecting block is threadedly connected to the screw, the screw rotation moves the connecting block, which in turn moves the entire clamping assembly, transporting the sand box to the top of the sorting assembly. The sorting and positioning assemblies work together to push the sand box to the top of the sorting assembly, facilitating the closing of the two sand boxes.

[0024] 3. This utility model provides a sand box closing device with a guiding structure. By fixing limit blocks around the upper part of the sand box, the inner holes of the limit blocks can be aligned when the two sand boxes are closed. Then, the position of the two sand boxes can be locked by the cooperation of the locking component and the limit blocks, so as to prevent the two sand boxes from moving accidentally during the handling of the two sand boxes, thereby affecting the quality of the casting. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the sorting component of this utility model. Figure 1 ;

[0029] Figure 4 This is a schematic diagram of the sorting component of this utility model. Figure 2 ;

[0030] Figure 5 This is a schematic diagram of the positioning component of this utility model;

[0031] Figure 6 This is a schematic diagram of the sand box of this utility model;

[0032] Figure 7 This is a schematic diagram of the clamping component of this utility model;

[0033] Figure 8This is a schematic diagram of the rotating component of this utility model;

[0034] Figure 9 This is a schematic diagram of the placement platform assembly of this utility model;

[0035] Figure 10 This is a schematic diagram of the locking component of this utility model.

[0036] In the diagram: 1. Conveyor belt; 2. Support frame; 3. Connecting block 1; 4. Screw; 5. Guide rod 1; 6. Finishing assembly; 61. Support plate; 62. Bidirectional threaded rod; 63. Push plate; 64. Connecting rod; 7. Sand box; 71. Connecting block 1; 72. Insertion plate; 73. Locking assembly; 731. Housing; 732. Electromagnet; 733. Iron core; 734. Magnet; 735. Bolt rod; 736. Spring; 74. Limiting block; 8. Clamping assembly; 81. Connecting frame; 82. Connecting block two; 83. Slide plate; 84. Liquid cylinder; 85. Connecting plate one; 86. Guide rod two; 87. Rotating assembly; 871. Connecting plate two; 872. Rotating shaft; 873. Connecting plate three; 874. Docking block two; 88. Electric push rod one; 9. Positioning assembly; 91. Base block; 92. Electric push rod two; 93. Positioning bolt; 10. Placement platform assembly; 101. Platform; 102. L-shaped block; 103. Infrared sensor; 104. Signal receiver. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to embodiments:

[0038] Example 1

[0039] like Figures 1-6As shown, this utility model provides a sand box closing device with a guiding structure, including a screw 4, a guide rod 5, a sorting component 6, a sand box 7, and two conveyor belts 1; a support frame 2 is fixedly connected to the middle of each of the two conveyor belts 1, and a connecting block 3 is symmetrically fixedly connected to the upper part of each of the two support frames 2. The screw 4 is rotatably connected to two adjacent connecting blocks 3, and the guide rod 5 is fixedly connected to two adjacent connecting blocks 3. A clamping component 8 is slidably connected to the outer surface of the guide rod 5, and the screw 4 is threadedly connected to the clamping component 8. A placement platform component 10 is fixedly connected to the side of one of the conveyor belts 1 near the sorting component 6. The upper part of both the sorting component 6 and the placement platform component 10 is fixedly connected to a positioning component 9. The middle part of the sand box 7 is symmetrically fixedly connected to an insertion plate 72. The positioning component 9 includes a base block 91. The upper end of the base block 91 is symmetrically fixedly connected to an electric push rod 92. The piston rod output end of the electric push rod 92 is fixedly connected to a positioning bolt 93. The sorting component 6 includes a support plate 61 and a connecting rod 64. The middle part of the support plate 61 is rotatably connected to a bidirectional threaded rod 62. The inner cavity of the support plate 61 is symmetrically slidably connected to a push plate 63. The push plate 63 is threadedly connected to the bidirectional threaded rod 62. The middle part of the bidirectional threaded rod 62 is connected to the connecting rod 64 through a synchronous belt.

[0040] In this embodiment, the sand box 7 is transported by the conveyor belt 1. The motor drives the screw 4, which in turn moves the clamping assembly 8. The clamping assembly 8 clamps and moves the sand box 7 that is transported to the placement platform assembly 10. The insertion plate 72 is symmetrically fixedly connected to the middle of the sand box 7. The positioning bolt 93 is pushed upward by the electric push rod 92 and pushed into the cavity of the insertion plate 72. The positioning bolt 93 guides and positions the two sand boxes 7, thus providing initial guidance and preventing misalignment when the two sand boxes 7 are closed. The motor drives the connecting rod 64 to rotate, and the synchronous belt drives the bidirectional threaded rod 62 to rotate, which moves the two push plates 63 toward the two sand boxes 7. With the cooperation of the two push plates 63, the sides of the two sand boxes 7 are aligned to ensure that the end faces of the two sand boxes 7 are accurately aligned.

[0041] Example 2

[0042] like Figure 5 and Figure 9As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the placement platform assembly 10 includes a platform 101, with L-shaped blocks 102 symmetrically fixedly connected to the side of the platform 101 away from the sorting assembly 6, and the two L-shaped blocks 102 being fixedly connected to the adjacent conveyor belt 1. An infrared sensor 103 is fixedly connected to one side of the upper end of the platform 101, and a signal receiver 104 is fixedly connected to the side of the upper end of the platform 101 away from the infrared sensor 103. The positioning bolt 93 is conical.

[0043] In this embodiment, when two sand boxes 7 need to be combined, the sand boxes 7 are first transported by the conveyor belt 1. When the conveyor belt 1 transports the sand boxes 7 to the platform 101, the sand boxes 7 will be driven to contact one side of the bottom block 91 by the left and right movement of the conveyor belt 1. The sand boxes 7 will then block the infrared rays of the infrared sensor 103, so the signal receiver 104 cannot receive the infrared rays. Then the signal receiver 104 will transmit the data to the controller. The controller will then control the conveyor belt 1 to stop running to prevent multiple sand boxes 7 from piling up at the same time. Then the controller will control the electric push rod 92 to run. The piston rod output end of the electric push rod 92 will push the positioning bolt 93 into the inner cavity of the insertion plate 72, and then guide and limit the position of the sand boxes 7.

[0044] Example 3

[0045] like Figure 6 and Figure 7 As shown, based on Embodiment 2, this utility model provides a technical solution: Preferably, the clamping assembly 8 includes a connecting frame 81, with connecting blocks 82 symmetrically fixedly connected to the connecting frame 81. Connecting blocks 82 on the same side are threadedly connected to screws 4 and guide rods 5. A liquid cylinder 84 is fixedly connected to the middle of the connecting frame 81. A sliding plate 83 is symmetrically slidably connected to the connecting frame 81. A connecting plate 85 is fixedly connected to the lower ends of the two sliding plates 83. The piston rod output end of the liquid cylinder 84 is fixedly connected to the connecting plate 85. A guide rod 86 is symmetrically fixedly connected to the lower part of the connecting plate 85. A rotating assembly 87 is symmetrically slidably connected to the two guide rods 86. An electric push rod 88 is symmetrically fixedly connected to the connecting plate 85. The piston rod output end of the electric push rod 88 on the same side is fixedly connected to the rotating assembly 87.

[0046] In this embodiment, the controller then controls the operation of the liquid cylinder 84, using the piston rod output end of the liquid cylinder 84 to push the connecting plate 85 downward, which in turn drives the two rotating components 87 downward together. Once the rotating components 87 have descended to the appropriate position, the controller controls the operation of the electric push rod 88, using the piston rod output end of the electric push rod 88 to push the rotating components 87 towards the sand box 7. This pushes the docking block 874 into the inner cavity of the adjacent docking block 71, clamping the sand box 7. Then, the controller controls the operation of the liquid cylinder 84, driving the connecting plate 85 upward. The connecting plate 85 drives the rotating components 87 and the sand box 7 upward together. Finally, the controller controls the operation of the motor, which drives the screw 4 to rotate, passing through the connecting block... The cooperation between screw 4 and clamping component 82 drives clamping component 8 to move towards sorting component 6. After clamping component 8 moves directly above sorting component 6, the controller controls liquid cylinder 84 to operate. The piston rod output end of liquid cylinder 84 pushes connecting plate 85 downward, which in turn drives rotating component 87 and sand box 7 downward together. Sand box 7 is then placed between two push plates 63. The controller then controls electric push rod 88 to operate. The piston rod output end of electric push rod 88 drives rotating component 87 to move away from sand box 7, which in turn drives docking block 874 to disengage from docking block 71, thereby releasing the clamping of sand box 7. Finally, the cooperation between screw 4 and connecting block 82 drives clamping component 8 to move and reset.

[0047] Example 4

[0048] like Figure 8 and Figure 10As shown, based on Embodiment 3, this utility model provides a technical solution: Preferably, the rotating assembly 87 includes a second connecting plate 871, the upper part of which is slidably connected to a second guide rod 86, and a rotating shaft 872 rotatably connected to the lower part of the second connecting plate 871. A third connecting plate 873 is fixedly connected to the side of the rotating shaft 872 away from the second connecting plate 871. A second docking block 874 is symmetrically fixedly connected to the side of the third connecting plate 873 away from the second connecting plate 871. A plurality of first docking blocks 71 are symmetrically fixedly connected to the sand box 7. Limiting blocks 74 are fixedly connected to all four sides of the upper part of the sand box 7, including two limiting blocks 74. 4. Each of the lower ends is fixedly connected to a locking assembly 73. The locking assembly 73 includes a housing 731 and a spring 736. A bolt 735 is slidably connected to the inner cavity of the housing 731. An electromagnet 732 is fixedly connected to the side of the inner cavity of the housing 731 away from the bolt 735. An iron core 733 is fixedly connected to the middle of the electromagnet 732. The bolt 735 is slidably connected to the iron core 733. A magnet 734 is fixedly connected to the side of the bolt 735 near the electromagnet 732. The side of the spring 736 near the magnet 734 is fixedly connected to the magnet 734. The side of the spring 736 away from the magnet 734 is fixedly connected to the inner wall of the housing 731.

[0049] In this embodiment, after the sand box 7 is gripped and transported away by the clamping assembly 8, the infrared light from the infrared sensor 103 is emitted into the inner cavity of the signal receiver 104. The signal receiver 104 then transmits the data to the controller, which then controls the conveyor belt 1 to transport the new sand box 7 onto the platform 101. The above steps are repeated to grip and transport the new sand box 7. During the process of the clamping assembly 8 transporting the new sand box 7 to the sorting assembly 6, the controller controls the motor to drive the rotating shaft 872 to rotate. The rotating shaft 872 then drives the connecting plate 873 to rotate, thereby flipping the sand box 7. The clamping assembly 8 then transports the new sand box 7 above the old sand box 7. 8. Place the new sand box 7 on top of the old sand box 7. Then, using the cooperation of the screw 4 and the connecting block 82, drive the clamping assembly 8 to move and reset. Next, control the electric push rod 92 located on the support plate 61 to run through the controller. The piston rod output end of the electric push rod 92 pushes the positioning bolt 93 into the inner cavity of the two insertion plates 72 to adjust the position of the two sand boxes 7. Then, control the motor to run through the controller. Then, use the motor to drive the connecting rod 64 to rotate. Then, drive the bidirectional threaded rod 62 to run through the synchronous belt. When the bidirectional threaded rod 62 rotates, it will drive the two push plates 63 to move towards the two sand boxes 7. Then, with the cooperation of the two push plates 63, the position of the two sand boxes 7 can be adjusted so that the end faces of the two sand boxes 7 are aligned.

[0050] Next, by energizing the electromagnet 732, the electromagnet 732 generates a magnetic force. Since the magnetic force generated by the electromagnet 732 repels the magnetic force of the magnet 734, it pushes the magnet 734 to move away from the electromagnet 732. When the magnet 734 moves, it drives the bolt 735 to move together, and pushes the bolt 735 into the inner cavity of the adjacent limiting block 74, thus limiting the position of the two limiting blocks 74. This prevents the two sand boxes 7 from shaking unexpectedly after being closed, thus preventing the two sand boxes 7 from moving. Finally, through the cooperation of the screw 4 and the clamping assembly 8, the clamping assembly 8 clamps the two sand boxes 7 after they are closed, and then transports them to the other side of the conveyor belt 1. The two sand boxes 7 after being closed are then transported to the next process by the other side of the conveyor belt 1.

[0051] The working principle of this sand box closing device with a guiding structure is explained in detail below.

[0052] like Figures 1-10 As shown, when two sand boxes 7 need to be combined, firstly, the sand box 7 can be transported by the conveyor belt 1. When the conveyor belt 1 transports the sand box 7 to the platform 101, then under the left and right movement of the conveyor belt 1, one side of the sand box 7 will contact one side of the bottom block 91. Then, the sand box 7 will block the infrared light of the infrared sensor 103, so the signal receiver 104 cannot receive the infrared light. Then, the signal receiver 104 will transmit the data to the controller. Then, the controller will control the conveyor belt 1 to stop running to prevent multiple sand boxes 7 from piling up together at the same time. Then, the controller will control the electric push rod 92 to run. The piston rod output end of the electric push rod 92 will push the positioning bolt 93 into the inner cavity of the insertion plate 72, and then guide and limit the position of the sand box 7.

[0053] Next, the controller controls the operation of the liquid cylinder 84. The piston rod output end of the liquid cylinder 84 pushes the connecting plate 85 downwards, causing the two rotating components 87 to move downwards together. Once the rotating components 87 reach the appropriate position, the controller controls the operation of the electric push rod 88. The piston rod output end of the electric push rod 88 pushes the rotating components 87 towards the sand box 7, which then pushes the docking block 874 into the inner cavity of the adjacent docking block 71, clamping the sand box 7. Then, the controller controls the operation of the liquid cylinder 84, causing the connecting plate 85 to move upwards. The connecting plate 85 then moves the rotating components 87 and the sand box 7 upwards together. Finally, the controller controls the operation of the motor, which drives the screw 4 to rotate, connecting the screw 4 to the connecting block 82. The screw 4, when engaged, drives the clamping assembly 8 to move toward the sorting assembly 6. Once the clamping assembly 8 is directly above the sorting assembly 6, the controller then controls the liquid cylinder 84 to operate. The piston rod output of the liquid cylinder 84 pushes the connecting plate 85 downward, which in turn drives the rotating assembly 87 and the sand box 7 downward together. The sand box 7 is then placed between the two push plates 63. The controller then controls the electric push rod 88 to operate. The piston rod output of the electric push rod 88 drives the rotating assembly 87 to move away from the sand box 7, which in turn causes the docking block 874 to disengage from the inner cavity of the docking block 71, thereby releasing the clamping of the sand box 7. Finally, the screw 4 and the connecting block 82 work together to move the clamping assembly 8 back to its original position.

[0054] After the sand box 7 is gripped and conveyed away by the clamping assembly 8, the infrared light from the infrared sensor 103 is emitted into the cavity of the signal receiver 104. The signal receiver 104 then transmits the data to the controller, which then controls the conveyor belt 1 to transport the new sand box 7 to the platform 101. The above steps are repeated to grip and transport the new sand box 7. During the process of the clamping assembly 8 transporting the new sand box 7 to the sorting assembly 6, the controller controls the motor to drive the rotating shaft 872 to rotate. The rotating shaft 872 then drives the connecting plate 873 to rotate, thereby flipping the sand box 7. The clamping assembly 8 then transports the new sand box 7 above the old sand box 7. The clamping assembly 8 then transports the new sand box 7 to the platform 101. The sand box 7 is placed on top of the old sand box 7. Then, the screw 4 and the connecting block 82 work together to move and reset the clamping assembly 8. Then, the controller controls the electric push rod 92 on the support plate 61 to run. The piston rod output end of the electric push rod 92 pushes the positioning bolt 93 into the inner cavity of the two insertion plates 72 to adjust the position of the two sand boxes 7. Then, the controller controls the motor to run. Then, the motor drives the connecting rod 64 to rotate. Then, the synchronous belt drives the bidirectional threaded rod 62 to run. When the bidirectional threaded rod 62 rotates, it will drive the two push plates 63 to move towards the two sand boxes 7. Then, with the cooperation of the two push plates 63, the position of the two sand boxes 7 can be adjusted so that the end faces of the two sand boxes 7 are aligned.

[0055] Next, by energizing the electromagnet 732, the electromagnet 732 generates a magnetic force. Since the magnetic force generated by the electromagnet 732 repels the magnetic force of the magnet 734, it pushes the magnet 734 to move away from the electromagnet 732. When the magnet 734 moves, it drives the bolt 735 to move together, and pushes the bolt 735 into the inner cavity of the adjacent limiting block 74, thus limiting the position of the two limiting blocks 74. This prevents the two sand boxes 7 from shaking unexpectedly after being closed, thus preventing the two sand boxes 7 from moving. Finally, through the cooperation of the screw 4 and the clamping assembly 8, the clamping assembly 8 clamps the two sand boxes 7 after they are closed, and then transports them to the other side of the conveyor belt 1. The two sand boxes 7 after being closed are then transported to the next process by the other side of the conveyor belt 1.

[0056] It should be noted that the specific installation methods, circuit connection methods, and control methods of the liquid cylinder 84, electric push rod 2 92, infrared sensor 103, and signal receiver 104 in this article are all conventional designs and are standard design methods used by designers.

[0057] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A sand box closing device with a guiding structure, comprising a screw (4), a guide rod (5), a sorting assembly (6), a sand box (7), and two conveyor belts (1); characterized in that: A support frame (2) is fixedly connected to the middle of each of the two conveyor belts (1). A connecting block (3) is symmetrically fixedly connected to the upper part of each of the two support frames (2). The screw (4) is rotatably connected to the two adjacent connecting blocks (3). The guide rod (5) is fixedly connected to the two adjacent connecting blocks (3). A clamping assembly (8) is slidably connected to the outer surface of the guide rod (5). The screw (4) is threadedly connected to the clamping assembly (8). A placement platform assembly (10) is fixedly connected to the side of one of the conveyor belts (1) near the sorting assembly (6). A positioning assembly (9) is fixedly connected to the upper part of both the sorting assembly (6) and the placement platform assembly (10). A socket plate (72) is symmetrically fixedly connected in the middle of the box (7). The positioning component (9) includes a bottom block (91). An electric push rod (92) is symmetrically fixedly connected to the upper end of the bottom block (91). A positioning bolt (93) is fixedly connected to the piston rod output end of the electric push rod (92). The sorting component (6) includes a support plate (61) and a connecting rod (64). A bidirectional threaded rod (62) is rotatably connected in the middle of the support plate (61). A push plate (63) is symmetrically slidably connected in the inner cavity of the support plate (61). The push plate (63) is threadedly connected to the bidirectional threaded rod (62). The middle part of the bidirectional threaded rod (62) is connected to the connecting rod (64) through a synchronous belt.

2. The sand box closing device with a guiding structure according to claim 1, characterized in that: The clamping assembly (8) includes a connecting frame (81), which is symmetrically and fixedly connected to a second connecting block (82). The second connecting block (82) on the same side is threadedly connected to a screw (4) and to a first guide rod (5). A liquid cylinder (84) is fixedly connected to the middle of the connecting frame (81). A sliding plate (83) is symmetrically and slidably connected to the connecting frame (81). A connecting plate (85) is fixedly connected to the lower ends of the two sliding plates (83). The piston rod output end of the liquid cylinder (84) is fixedly connected to the first connecting plate (85). A second guide rod (86) is symmetrically and fixedly connected to the lower part of the first connecting plate (85). A rotating assembly (87) is symmetrically and slidably connected to the two second guide rods (86). An electric push rod (88) is symmetrically and fixedly connected to the first connecting plate (85). The piston rod output end of the first electric push rod (88) on the same side is fixedly connected to the rotating assembly (87).

3. A sand box closing device with a guiding structure according to claim 2, characterized in that: The rotating assembly (87) includes a second connecting plate (871), the upper part of which is slidably connected to a second guide rod (86), the lower part of which is rotatably connected to a rotating shaft (872), a third connecting plate (873) fixedly connected to the side of the rotating shaft (872) away from the second connecting plate (871), and a second docking block (874) symmetrically fixedly connected to the side of the third connecting plate (873) away from the second connecting plate (871). The sand box (7) is symmetrically fixedly connected to a plurality of first docking blocks (71).

4. A sand box closing device with a guiding structure according to claim 1, characterized in that: The placement platform assembly (10) includes a platform (101), and L-shaped blocks (102) are symmetrically fixedly connected to the side of the platform (101) away from the sorting assembly (6). The two L-shaped blocks (102) are fixedly connected to the adjacent conveyor belt (1). An infrared sensor (103) is fixedly connected to one side of the upper end of the platform (101), and a signal receiver (104) is fixedly connected to the side of the upper end of the platform (101) away from the infrared sensor (103).

5. A sand box closing device with a guiding structure according to claim 3, characterized in that: Limiting blocks (74) are fixedly connected to the upper four sides of the sand box (7), and locking components (73) are fixedly connected to the lower ends of the two limiting blocks (74).

6. A sand box closing device with a guiding structure according to claim 5, characterized in that: The locking assembly (73) includes a housing (731) and a spring (736). A bolt (735) is slidably connected to the inner cavity of the housing (731). An electromagnet (732) is fixedly connected to the side of the inner cavity of the housing (731) away from the bolt (735). An iron core (733) is fixedly connected to the middle of the electromagnet (732). The bolt (735) is slidably connected to the iron core (733). A magnet (734) is fixedly connected to the side of the bolt (735) near the electromagnet (732). The side of the spring (736) near the magnet (734) is fixedly connected to the magnet (734). The side of the spring (736) away from the magnet (734) is fixedly connected to the inner wall of the housing (731).

7. A sand box closing device with a guiding structure according to claim 1, characterized in that: The positioning bolt (93) is conical.

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