A sand box turning device for casting

Abstract

The utility model discloses a casting sand box turns over device relates to foundry technical field, including conveying line, the sand box is placed on conveying line, be equipped with detection mechanism on conveying line, the detection mechanism includes two groups of mounting bracket, two groups mounting bracket fixed mounting respectively in the conveying direction left and right sides of conveying line, the first detector is provided with a plurality of groups on the mounting bracket horizontal array, the second detector is provided with a plurality of groups on the mounting bracket vertical array. The utility model has the beneficial effects that when sand box moves to the detection mechanism, sand box will shield the infrared light line of detector, when the second detector detects sand box to pass, respectively through the number of first detector and second detector being shielded, the length and height of sand box are measured, thereby automatically identifying the model of sand box, then the sand box can be hoisted and turned over according to the sand box model identified, and the automatic operation is carried out to reduce the work burden of worker.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a sand box turning device for casting. Background Technology

[0002] Casting is a process in which metal is melted into a liquid that meets certain requirements and poured into a mold. After cooling and solidification, and cleaning, a casting with a predetermined shape, size, and properties is obtained. Sand casting, in particular, involves using molding sand to create a mold and then pouring the casting. Because sand casting molds are simple to manufacture, the molding sand used is widely available and inexpensive, and it is well adaptable to single-piece, batch, and mass production of castings, it has always been a basic process in casting production and is widely used.

[0003] In sand casting, the sand mold is usually flipped at a certain angle for coating. In existing technology, the flipping operation is mostly completed by a flipping wheel or a chain-type flipping machine. The operation of the flipping wheel is complicated and requires high skill from the operators. In addition, there are many types of sand molds on the casting production line, and the existing flipping devices cannot automatically identify the type of sand mold, resulting in a low degree of automation in the flipping operation and a large workload for the workers. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, this utility model provides a sand box turning device for casting.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a sand box turning device for casting, including a conveyor line, on which a sand box is placed, and a detection mechanism is provided on the conveyor line. The detection mechanism includes two sets of mounting frames, which are respectively fixedly installed on the left and right sides of the conveyor line in the conveying direction. Multiple sets of first detectors are arranged in a horizontal array on the mounting frames, and multiple sets of second detectors are arranged in a vertical array on the mounting frames. A turning mechanism is provided on the front side of the conveyor line in the conveying direction of the detection mechanism. The turning mechanism includes a frame, and a guide rail assembly is provided at the top of the frame. The guide rail assembly is perpendicular to the conveying direction of the conveyor line. A movable frame is movably installed on the guide rail assembly. A lifting frame is installed on the movable frame in a lifting manner. A gripping component is symmetrically arranged on the lifting frame. Two sets of limiting mechanisms are provided below the lifting frame, and the two sets of limiting mechanisms are symmetrically arranged on both sides of the conveyor line.

[0006] Furthermore, a first hydraulic cylinder is fixedly installed at the top center of the movable frame, and the power output end of the first hydraulic cylinder is fixedly connected to the lifting frame. A first guide rod is fixedly installed at the top of the lifting frame near the four endpoints, and the first guide rod is slidably installed on the movable frame.

[0007] Furthermore, the gripping component includes a movable frame, with slides fixedly installed at both ends of the movable frame. A second guide rod is slidably installed on the slide, and the second guide rod is fixedly installed on the lifting frame. The axis of the second guide rod is parallel to the conveying direction of the conveyor line. A second hydraulic cylinder is provided between the two sets of second guide rods. The second hydraulic cylinder is fixedly installed on the lifting frame, and the conveying end of the second hydraulic cylinder is fixedly connected to the movable frame.

[0008] Furthermore, a fixed frame is fixedly installed at the bottom center of the movable frame, a clamping plate is rotatably installed at the bottom of the fixed frame, a swing cylinder for driving the clamping plate to rotate is installed on the fixed frame, positioning columns are fixedly installed at both ends of the clamping plate, and positioning sleeves corresponding to the positioning columns are fixedly installed on the side wall of the sand box.

[0009] Furthermore, the swing cylinder includes a swing cylinder, on which a drive shaft is rotatably mounted. The drive shaft is fixedly connected to the rotating shaft of the clamping plate. Piston cylinders are fixedly mounted at both ends of the swing cylinder. An oil inlet and outlet hole is provided at the end of the piston cylinder away from the swing cylinder. A piston rod is movably mounted inside the piston cylinder. A toothed part is provided in the middle of the piston rod. A transmission gear matching the toothed part is fixedly mounted on the side wall of the drive shaft.

[0010] Furthermore, the guide rail assembly includes two sets of guide rails, which are fixedly installed at the top left and right ends of the frame. Rollers are fixedly installed at the bottom of the movable frame and are fitted onto the guide rails. A fixed seat is fixedly installed on either the left or right side of the movable frame. A drive gear is rotatably installed at the bottom end of the fixed seat. A rack matching the drive gear is fixedly installed on the frame. A drive motor is fixedly installed on the fixed seat, and the output shaft of the drive motor is connected to the drive gear.

[0011] Furthermore, the limiting mechanism includes a mounting base, with third guide rods slidably mounted at both ends of the mounting base. A movable plate is fixedly mounted at one end of the third guide rod near the conveyor line. A third hydraulic cylinder is fixedly mounted in the middle of the mounting base. The output end of the third hydraulic cylinder is fixedly connected to the movable plate. A limiting frame is fixedly mounted on the movable plate. The limiting frame extends along the conveying direction of the conveyor line. Several sets of pulleys are rotatably mounted on the limiting frame. Several sets of pulleys are arranged in a linear array on the limiting frame.

[0012] Furthermore, the length and width of the sand box are equal, both the first and second detectors are photoelectric switches, and a control console is provided on the side of the conveyor line.

[0013] The beneficial effect of this utility model is that sand boxes of different models are conveyed to the frame via a conveyor line. When the sand box moves to the detection mechanism, it will block the infrared light emitted by the detector. When the second detector detects the passage of the sand box, the length and height of the sand box are calculated by measuring the number of blocks on the first and second detectors respectively. Since the length and width of the sand box are equal, the width of the sand box can be determined at the same time, thereby automatically identifying the model of the sand box. Then, the flipping mechanism can automatically lift and flip the sand box according to the identified model, so as to reduce the workload of workers. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is the front view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is the left view of the present invention; Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction; Figure 6 for Figure 5 A magnified view of a portion of region B in the middle.

[0016] In the diagram: 1. Conveyor line, 2. Sand box, 3. Mounting frame, 4. First detector, 5. Second detector, 6. Frame, 7. Movable frame, 8. Guide rail, 9. Roller, 10. Fixed seat, 11. Drive gear, 12. Rack, 13. Drive motor, 14. Lifting frame, 15. First hydraulic cylinder, 16. First guide rod, 17. Movable frame, 18. Slide, 19. Second guide rod, 20. Second hydraulic cylinder, 21. Fixed frame, 22. Clamping plate, 23. Positioning column, 24. Positioning sleeve, 25. Swing cylinder, 251. Swing cylinder, 252. Drive shaft, 253. Piston cylinder, 254. Oil inlet / outlet hole, 255. Piston rod, 256. Gear, 257. Transmission gear, 26. Mounting seat, 27. Third guide rod, 28. Movable plate, 29. Third hydraulic cylinder, 30. Limiting frame, 31. Pulley, 32. Control console. Detailed Implementation

[0017] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0018] according to Figure 1-6 As shown, a sand box turning device for casting includes a conveyor line 1, on which a sand box 2 is placed. The length and width of the sand box 2 are equal. A detection mechanism is provided on the conveyor line 1. The detection mechanism includes two sets of mounting frames 3, which are respectively fixedly installed on the left and right sides of the conveyor line 1 in the conveying direction. Multiple sets of first detectors 4 are arranged in a horizontal array on the mounting frames 3, and multiple sets of second detectors 5 are arranged in a vertical array on the mounting frames 3. Both the first detectors 4 and the second detectors 5 are photoelectric switches. The detection mechanism is located on the conveyor line 1. A box-flipping mechanism is provided on the front side of the conveyor line 1. The box-flipping mechanism includes a frame 6. A guide rail assembly is provided at the top of the frame 6. The guide rail assembly is perpendicular to the conveying direction of the conveyor line 1. A movable frame 7 is movably mounted on the guide rail assembly. A lifting frame 14 is mounted on the movable frame 7 and can be raised and lowered. A gripping assembly is symmetrically arranged on the lifting frame 14. Two sets of limiting mechanisms are provided below the lifting frame 14. The two sets of limiting mechanisms are symmetrically arranged on both sides of the conveyor line 1. A control console 32 is provided on the side of the conveyor line 1. The control console 32 is used to control the various electrical components of the box-flipping device.

[0019] In the above specific embodiment, sand boxes 2 of different models are conveyed to the frame 6 via the conveyor line 1. When the sand box 2 moves to the detection mechanism, the sand box 2 will block the infrared light emitted by the detector. When the second detector 5 detects the passage of the sand box 2, the length and height of the sand box 2 are calculated by the number of blocks of the first detector 4 and the second detector 5 respectively. Since the length and width of the sand box 2 are equal, the width of the sand box 2 can be determined at the same time, and the model of the sand box 2 can be automatically identified. Then, the flipping mechanism can automatically lift and flip the sand box 2 according to the identified model of the sand box 2 to reduce the workload of the workers.

[0020] This embodiment provides a sand box flipping device for casting. During flipping, based on the identification results of the first detector 4 and the second detector 5, the first hydraulic cylinder 15 drives the lifting frame 14 to descend, so that the positioning post 23 and the positioning sleeve 24 are at the same height. Then, the second hydraulic cylinder 20 drives the moving frame 17 to move closer to each other, so that the positioning post 23 is inserted into the positioning sleeve 24, thereby fixing the sand box 2. After that, the first hydraulic cylinder 15 drives the lifting frame 14 to rise, lifting the sand box 2 from the conveyor line 1. Then, the drive motor 13 drives the drive gear 11 to rotate, and the drive gear 11 rotates with the sand box 2. With the cooperation of rack 12, the movable frame 7 moves along guide rail 8, thereby moving the sand box 2 from conveyor line 1 to the paint spraying area. Then, the two sets of swing cylinders 25 start synchronously. The synchronous starting method of swing cylinders 25 in the same hydraulic system is existing technology and will not be described in detail here. The swing cylinders 25 drive the clamping plate 22 to flip, so that the cavity of the sand box 2 faces the paint nozzle, so that the paint can be sprayed into the cavity. After the spraying is completed, the sand box flips back to horizontal and is placed back on conveyor line 1 to continue the next process. The specific technical solution is as follows: according to Figure 2 and Figure 4 As shown, the guide rail assembly includes two sets of guide rails 8, which are fixedly installed at the top left and right ends of the frame 6. Rollers 9 are fixedly installed at the bottom of the movable frame 7, and the rollers 9 are fitted onto the guide rails 8. A fixed seat 10 is fixedly installed on the left side of the movable frame 7. A drive gear 11 is rotatably installed at the bottom end of the fixed seat 10 through a bearing seat. A rack 12 matching the drive gear 11 is fixedly installed on the frame 6. A drive motor 13 is fixedly installed on the fixed seat 10. Preferably, the drive motor 13 is a geared motor, and the output shaft of the drive motor 13 is connected to the drive gear 11.

[0021] according to Figure 2 As shown, a first hydraulic cylinder 15 is fixedly installed at the top center of the movable frame 7. The power output end of the first hydraulic cylinder 15 is fixedly connected to the lifting frame 14. A first guide rod 16 is fixedly installed at the top of the lifting frame 14 near the four ends. The first guide rod 16 is slidably installed on the movable frame 7.

[0022] according to Figure 3 and Figure 5As shown, the gripping assembly includes a movable frame 17, with slide blocks 18 fixedly installed at both ends of the movable frame 17. A second guide rod 19 is slidably installed on the slide block 18. The second guide rod 19 is fixedly installed on the lifting frame 14. The axis of the second guide rod 19 is parallel to the conveying direction of the conveyor line 1. A second hydraulic cylinder 20 is provided between the two sets of second guide rods 19. The second hydraulic cylinder 20 is fixedly installed on the lifting frame 14 by a bracket. The conveying end of the second hydraulic cylinder 20 is fixedly connected to the movable frame 17.

[0023] according to Figure 2 and Figure 5 As shown, a fixed frame 21 is fixedly installed at the bottom center of the movable frame 17, and a clamping plate 22 is rotatably installed at the bottom end of the fixed frame 21. A swing cylinder 25 for driving the clamping plate 22 to rotate is installed on the fixed frame 21. Positioning posts 23 are fixedly installed at both ends of the clamping plate 22. Positioning sleeves 24 with positions corresponding to the positioning posts 23 are fixedly installed on the side wall of the sand box 2.

[0024] This embodiment provides a sand box flipping device for casting. When the sand box 2 is flipped by the swing cylinder 25, hydraulic oil enters the piston cylinder 253 through the oil inlet / outlet hole 254, thereby driving the piston rod 255 to move within the piston cylinder 253. When the piston rod 255 moves, the engagement of the toothed part 256 and the transmission gear 257 causes the drive shaft 252 to drive the clamping plate 22 to rotate, thereby realizing the flipping of the sand box 2. The specific technical solution is as follows: according to Figure 6 As shown, the swing cylinder 25 includes a swing cylinder 251, on which a drive shaft 252 is rotatably mounted. The drive shaft 252 is fixedly connected to the rotating shaft of the clamping plate 22 by a key. Piston cylinders 253 are fixedly mounted at both ends of the swing cylinder 251. An oil inlet / outlet hole 254 is provided at the end of the piston cylinder 253 away from the swing cylinder 251. A piston rod 255 is movably mounted inside the piston cylinder 253. A toothed portion 256 is provided in the middle of the piston rod 255. A transmission gear 257 matching the toothed portion 256 is fixedly mounted on the side wall of the drive shaft 252.

[0025] This embodiment provides a sand box turning device for casting. To avoid large deviations of the sand box 2 on the conveyor line 1, based on the identification results of the first detector 4 and the second detector 5, the third hydraulic cylinder 29 drives the movable plate 28 to move, so that the distance between the pulleys 31 on the two sets of movable plates 28 is slightly larger than the width of the sand box 2. This avoids large deviations between the positioning sleeve 24 and the positioning post 23 when the sand box 2 passes under the frame 6, which would affect the connection between the clamping plate 22 and the sand box 2. The specific technical solution is as follows: according to Figure 3As shown, the limiting mechanism includes a mounting base 26, with third guide rods 27 slidably mounted at both ends of the mounting base 26. A movable plate 28 is fixedly mounted at one end of the third guide rod 27 near the conveyor line 1. A third hydraulic cylinder 29 is fixedly mounted in the middle of the mounting base 26. The output end of the third hydraulic cylinder 29 is fixedly connected to the movable plate 28. A limiting frame 30 is fixedly mounted on the movable plate 28. The limiting frame 30 extends along the conveying direction of the conveyor line 1. Several sets of pulleys 31 are rotatably mounted on the limiting frame 30. Several sets of pulleys 31 are arranged in a linear array on the limiting frame 30.

[0026] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A sand box turning device for casting, comprising a conveyor line (1), wherein a sand box (2) is placed on the conveyor line (1), characterized in that: The conveyor line (1) is provided with a detection mechanism, which includes two sets of mounting frames (3). The two sets of mounting frames (3) are fixedly installed on the left and right sides of the conveyor line (1) in the conveying direction. Multiple sets of first detectors (4) are arranged in a horizontal array on the mounting frame (3), and multiple sets of second detectors (5) are arranged in a vertical array on the mounting frame (3). The detection mechanism is provided with a box-flipping mechanism on the front side of the conveyor line (1) in the conveying direction. The box-flipping mechanism includes a frame (6). The top of the frame (6) is provided with a guide rail assembly. The guide rail assembly is perpendicular to the conveying direction of the conveyor line (1). A movable frame (7) is movably installed on the guide rail assembly. A lifting frame (14) is installed on the movable frame (7) in a liftable manner. A gripping component is symmetrically arranged on the lifting frame (14). Two sets of limiting mechanisms are provided below the lifting frame (14). The two sets of limiting mechanisms are symmetrically arranged on both sides of the conveyor line (1).

2. The casting sand box turning device according to claim 1, characterized in that, A first hydraulic cylinder (15) is fixedly installed at the top center of the movable frame (7). The power output end of the first hydraulic cylinder (15) is fixedly connected to the lifting frame (14). A first guide rod (16) is fixedly installed at the top of the lifting frame (14) near the four ends. The first guide rod (16) is slidably installed on the movable frame (7).

3. A sand box turning device for casting according to claim 2, characterized in that, The gripping assembly includes a movable frame (17), with slides (18) fixedly installed at both ends of the movable frame (17). A second guide rod (19) is slidably installed on the slide (18). The second guide rod (19) is fixedly installed on the lifting frame (14). The axis of the second guide rod (19) is parallel to the conveying direction of the conveying line (1). A second hydraulic cylinder (20) is provided between the two sets of second guide rods (19). The second hydraulic cylinder (20) is fixedly installed on the lifting frame (14). The conveying end of the second hydraulic cylinder (20) is fixedly connected to the movable frame (17).

4. A sand box turning device for casting according to claim 3, characterized in that, A fixed frame (21) is fixedly installed at the bottom center of the movable frame (17). A clamping plate (22) is rotatably installed at the bottom of the fixed frame (21). A swing cylinder (25) for driving the clamping plate (22) to rotate is installed on the fixed frame (21). Positioning columns (23) are fixedly installed at both ends of the clamping plate (22). Positioning sleeves (24) with positions corresponding to the positioning columns (23) are fixedly installed on the side wall of the sand box (2).

5. A sand box turning device for casting according to claim 4, characterized in that, The swing cylinder (25) includes a swing cylinder (251), a drive shaft (252) is rotatably mounted on the swing cylinder (251), the drive shaft (252) is fixedly connected to the rotating shaft of the clamping plate (22), piston cylinders (253) are fixedly mounted at the front and rear ends of the swing cylinder (251), an oil inlet and outlet hole (254) is provided at the end of the piston cylinder (253) away from the swing cylinder (251), a piston rod (255) is movably mounted inside the piston cylinder (253), a toothed part (256) is provided in the middle of the piston rod (255), and a transmission gear (257) matching the toothed part (256) is fixedly mounted on the side wall of the drive shaft (252).

6. A sand box turning device for casting according to claim 1, characterized in that, The guide rail assembly includes two sets of guide rails (8). The guide rails (8) are fixedly installed on the top left and right ends of the frame (6). The bottom of the movable frame (7) is fixedly installed with rollers (9). The rollers (9) are fitted on the guide rails (8). A fixed seat (10) is fixedly installed on either the left or right side of the movable frame (7). A drive gear (11) is rotatably installed at the bottom end of the fixed seat (10). A rack (12) matching the drive gear (11) is fixedly installed on the frame (6). A drive motor (13) is fixedly installed on the fixed seat (10). The output shaft of the drive motor (13) is connected to the drive gear (11).

7. A sand box turning device for casting according to claim 1, characterized in that, The limiting mechanism includes a mounting base (26), with a third guide rod (27) slidably mounted at both ends of the mounting base (26). A movable plate (28) is fixedly mounted at one end of the third guide rod (27) near the conveyor line (1). A third hydraulic cylinder (29) is fixedly mounted in the middle of the mounting base (26). The output end of the third hydraulic cylinder (29) is fixedly connected to the movable plate (28). A limiting frame (30) is fixedly mounted on the movable plate (28). The limiting frame (30) extends along the conveying direction of the conveyor line (1). Several sets of pulleys (31) are rotatably mounted on the limiting frame (30). Several sets of pulleys (31) are arranged in a linear array on the limiting frame (30).

8. A sand box turning device for casting according to any one of claims 1-7, characterized in that, The sand box (2) has the same length and width. The first detector (4) and the second detector (5) are both photoelectric switches. The conveyor line (1) is equipped with a control console (32) on its side.

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