Anti-clamping casting turnover box

Abstract

The invention belongs to the technical field of conveying, and discloses an anti-clamping casting turnover box which comprises a box body with an opening in the upper end. One side wall of the box body is a movable wall; the movable wall is configured to at least have a first state and a second state, and compared with the first state, the space and the opening of the inner cavity of the box body are increased in the second state; a limiting mechanism for controlling the movable wall to switch between the first state and the second state is arranged on the box body; a shifting mechanism swinging along with the state change of the movable wall is arranged in the box body; a supporting mechanism is arranged on the box body and comprises a supporting arm and an elastic element, the supporting arm is fixed to the box body and extends to the outer side of the movable wall, the two ends of the elastic element are connected with the supporting arm and the movable wall respectively, and the elastic element is in a stretched state when the movable wall is in a first state; when the movable wall is in the second state, the elastic element is in a natural state or a compressed state. And the state of the movable wall can be changed when the box body is used for discharging, so that the stuck state of the casting in the box body can be broken, and the casting can be smoothly dumped and discharged.

Description

Technical Field

[0001] The present application belongs to the field of conveying technology, and in particular relates to an anti-stuck casting turnover box. Background Art

[0002] After casting and sand removal, the castings need multiple post-processing steps to obtain the final product. Usually, the post-processing steps include cutting off the excess risers, gates and runner systems outside the casting body, deburring, heat treatment, surface treatment and inspection. The flow of castings between various process steps is mainly completed by turnover boxes.

[0003] Due to the complex shape of the castings, especially the irregular shapes of the risers, gates and runner systems that are still connected to the castings after the sand is removed, the castings cannot be neatly stacked. They are usually randomly stacked and stored in turnover boxes. After the turnover boxes are transported to the corresponding processing stations, the castings are dumped to the corresponding stations for processing. Randomly stacking castings in the turnover boxes will cause the castings to be hooked together and firmly stuck in the turnover boxes, and the castings cannot be dumped out of the turnover boxes smoothly. They can only be manually intervened to move or pull the castings from the dumping port of the turnover box to discharge them smoothly. However, manual operation from the dumping port of the turnover box is very prone to danger. Summary of the invention

[0004] In order to solve the technical problem in the prior art that castings are stuck in the turnover box and cannot be dumped out smoothly, the present application provides an anti-stuck casting turnover box.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an anti-stuck casting turnover box, comprising a box body with an upper end opening; one side wall of the box body is a movable wall; The movable wall is configured to have at least a first state and a second state, and in the second state, the inner cavity space and the opening of the box body are increased compared to the first state; the box body is provided with a limit mechanism for controlling the movable wall to switch between the first state and the second state; The box body is provided with a material-dispensing mechanism which swings as the state of the movable wall changes; A supporting mechanism is also provided on the box body, and the supporting mechanism includes a supporting arm and an elastic element. The supporting arm is fixed on the box body and extends to the outside of the movable wall. Both ends of the elastic element are fixedly connected to the supporting arm and the movable wall respectively. When the movable wall is in a first state, the elastic element is in a stretched state. When the movable wall is in a second state, the elastic element is in a natural state or a compressed state.

[0006] In one embodiment, the side wall of the box body adjacent to the movable wall is a fixed wall, and the bottom of the movable wall is rotatably arranged at the bottom of the fixed wall; a guide groove is arranged on the fixed wall, and the upper part of the movable wall is slidably matched with the guide groove through a rotating shaft. The height of the movable wall is higher than that of the fixed wall, and the upper end of the movable wall inclines towards the outside of the box body.

[0007] In one embodiment, the limiting mechanism includes a first locking mechanism arranged on the movement track of the rotating shaft. The first locking mechanism is configured to lock the movable wall in a first state. An unlocking mechanism is arranged on the rotating shaft, and the unlocking mechanism is configured to be able to release the locking state of the first locking mechanism on the movable wall.

[0008] In one embodiment, the rotating shaft penetrates through the movable wall along the width direction of the movable wall, and the rotating shaft is rotatably connected with the movable wall. The unlocking mechanism includes unlocking protrusions and operating rods fixed at both ends of the rotating shaft. The unlocking protrusions protrude from the surface of the rotating shaft and correspond to the position of the limiting mechanism, and the operating rods are located outside the guide groove.

[0009] In one embodiment, the first locking mechanism includes a first locking pin. A first installation groove is formed in the bottom wall of the guide groove. The first locking pin is slidably installed in the first installation groove. A first spring is further arranged between the bottom of the first installation groove and the bottom of the first locking pin. One side of the first locking pin close to the second state of the movable wall is an inclined surface.

[0010] In one embodiment, the limiting mechanism further includes a second locking mechanism. The second locking mechanism is arranged on the path where the rotating shaft is located when the movable wall is in the second state. The second locking mechanism divides the second state of the movable wall into a transition state and a final state. Compared with the transition state in the final state, the inner cavity space and the opening of the box body increase. The second locking mechanism is configured to lock the movable wall in the final state, and the unlocking mechanism is configured to be able to release the locking state of the second locking mechanism on the movable wall. When the movable wall is in the final state, the elastic element is in a compressed state.

[0011] In one embodiment, the second locking mechanism includes a second locking pin. A second installation groove is formed in the bottom wall of the guide groove. The second locking pin is slidably installed in the second installation groove. A second spring is further arranged between the bottom of the second installation groove and the bottom of the second locking pin. One side of the second locking pin close to the transition state of the movable wall is an inclined surface.

[0012] In one embodiment, the material pushing mechanism includes a material pushing rod which is fixedly installed at the bottom of the movable wall and extends towards the interior of the box body, and the length of the material pushing rod extending towards the interior of the box body is not greater than half of the length of the bottom plate of the box body.

[0013] In one embodiment, an operation hole is provided at the bottom of the fixed wall, and the distance between the operation hole and the movable wall is greater than the distance that the material pushing rod extends from the movable wall into the box body.

[0014] In one embodiment, the inner side surface of the movable wall is inclined from the middle to both sides along its transverse direction.

[0015] Beneficial effects: In the present invention, one side wall of the turnover box is improved to be a movable wall. When the box body is tilted for discharging materials, the casting presses on the movable wall, resulting in an increase in the acting force borne by the movable wall. When the limiting mechanism's restriction on the movable wall is released, the movable wall is converted from the first state to the second state under the action of the gravity of the casting, the inner cavity space and the opening of the box body increase, the stuck state of the casting in the box body can be broken, the looseness between the casting and the box body is generated, and then the casting can be smoothly discharged by tilting. At the same time, the material pushing mechanism swings with the change of the state of the movable wall. During the discharging process, the casting in the box body can be pushed, and the re - formation of the stuck state of the casting during the discharging process can be prevented. Description of the Drawings

[0016] Figure 1 is a three - dimensional structural schematic diagram of the turnover box of the present invention; Figure 2 is a structural schematic diagram of the turnover box of the present invention from another angle; Figure 3 is Figure 2 the enlarged partial structural view at A in Figure 4 is the front view of the turnover box; Figure 5 is the structural schematic diagram of the movable wall; Figure 6 is the structural schematic diagram of the turnover box when the movable wall is in the first state; Figure 7 is the structural schematic diagram of the movable wall in the transitional state; Figure 8 is Figure 7 the enlarged partial structural view at B in Figure 9 is the structural schematic diagram of the movable wall in the final state; Figure 10 is Figure 9 the enlarged partial structural view at C in Figure 11 is the structural schematic diagram of the movable wall in another embodiment.

[0017] In the figure, 11. movable wall, 111. rotating shaft, 112. unlocking protrusion, 113. operating rod, 12. material pushing rod, 121. reinforcing rib, 13. supporting mechanism, 131. supporting arm, 132. elastic element, 14. fixed wall, 141. guiding groove, 142. extension plate, 15. first locking pin, 151. first spring, 16. second locking pin, 161. second spring, 17. operating hole. Detailed implementation manners

[0018] The present application will be further described below in conjunction with specific implementation manners. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative changes fall within the protection scope of the present application.

[0019] The turnover boxes currently used are boxes with an open top welded by metal plates or perforated metal plates. Due to the complex shape of the castings, they are even not yet separated from the risers, gates and runner systems, making it difficult to stack them orderly in the boxes. After casting is completed, the turnover boxes are usually directly placed at the end of the shakeout conveyor line or other processing conveyor lines, and the castings directly fall into or are placed in the boxes, randomly stacked. The vibration generated during stacking and transportation will cause the castings to be further arranged and compacted in the boxes, resulting in the castings being stuck in the boxes and making it difficult to be dumped and discharged.

[0020] As Figures 1 - 4 shown, the anti-stuck casting turnover box provided by the present invention includes a box body with an open upper end; one of the side walls of the box body is a movable wall 11; The movable wall 11 is configured to have at least a first state and a second state. Compared with the first state in the second state, the inner cavity space and the opening of the box body are increased; a limiting mechanism for controlling the conversion of the movable wall 11 between the first state and the second state is provided on the box body; A material pushing mechanism that swings with the change of the state of the movable wall 11 is arranged in the box body. A supporting mechanism 13 is further provided on the box body. The supporting mechanism 13 includes a supporting arm 131 and an elastic element 132. The supporting arm 131 is fixed on the box body and extends to the outside of the movable wall 11. Two ends of the elastic element 132 are respectively fixedly connected with the supporting arm 131 and the movable wall 11. When the movable wall 11 is in the first state, the elastic element 132 is in a stretched state, and when the movable wall 11 is in the second state, the elastic element 132 is in a natural state or a compressed state.

[0021] When loading the castings to be processed into the turnover box, the movable wall 11 is maintained in the first state. After the turnover box is filled with castings, it is transported to the corresponding processing station by a transportation mechanism, where the transportation mechanism can be a conveyor belt, a ground rail trolley, a gantry crane, a forklift, etc. As Figure 3 shown, during transportation, the movable wall 11 remains in the first state due to the action of the limiting mechanism. Due to the vibration generated during transportation, the castings will be further arranged and compacted in the box. After the turnover box reaches the corresponding station, the turnover box is flipped, as Figure 6 shown, so that the movable wall 11 is located at the bottom of the box. At this time, the castings press on the movable wall 11, and the castings slide down along the movable wall 11 and are poured out. When a casting is stuck in the box and cannot be poured out, the restriction of the limiting mechanism on the movable wall 11 is released, as Figures 7 - 10 shown. Under the self-weight pressure of the castings, the movable wall 11 changes from the first state to the second state, resulting in an increase in the inner cavity space and the opening of the box, and loosening occurs between the castings and between the castings and the box. Furthermore, the stuck state of the castings in the box can be broken, and the castings slide down along the movable wall 11 and are poured out. When the movable wall 11 changes from the first state to the second state, as Figures 7 - 10 shown, the material pushing mechanism swings with the movable wall 11, and the material pushing mechanism plays a role in pushing the castings in the box, further breaking the stuck state of the castings and promoting the pouring out of the castings. As Figure 1 、 Figure 2 and Figure 4 shown, both ends of the support arm 131 are fixed on the fixed wall 14 of the box, and the middle part extends around the outside of the movable wall 11. A plurality of springs are arranged between the support arm 131 and the movable wall 11 as elastic elements 132. In the first state of the movable wall 11, the elastic element 132 is in a stretched state, and when the box is tilted for discharging and the limiting mechanism is released, the elastic element 132 can promote the conversion of the movable wall 11 to the second state. As Figure 7 and 9 shown, when the movable wall 11 is tilted for discharging in the second state, as the castings slide out along the movable wall 11, it will cause the elastic element 132 to vibrate, and the movable wall 11 and the material pushing mechanism will jump accordingly, achieving the effect of discharging under vibration, promoting the discharge of the castings in the box. At the same time, the jumping of the material pushing mechanism continuously pushes the castings in the box, which is beneficial to breaking the stuck state of the castings. The setting of the support arm 131 can also prevent the movable wall 11 from being supported in the case of breakage and failure of the elastic element 132 or the rotating shaft 111, and avoid the increased safety risk caused by the sudden large-scale flipping of the movable wall 11.

[0022] Specifically, in one embodiment, as Figure 2 and 3As shown, the side wall of the box body adjacent to the movable wall 11 is a fixed wall 14, and the bottom of the movable wall 11 is rotatably arranged at the bottom of the fixed wall 14; a guide groove 141 is arranged on the fixed wall 14, and the upper part of the movable wall 11 is slidably matched with the guide groove 141 through a rotating shaft 111. The height of the movable wall 11 is higher than that of the fixed wall 14, and the upper end of the movable wall 11 inclines towards the outside of the box body. Through the above structure, the movable wall 11 can be turned outwards along the bottom wall of the movable wall 11 on the box body, and then switch between the first state and the second state, as Figure 6 shown, where the first state is that the movable wall 11 is in a vertical state substantially perpendicular to the bottom plate of the box body, as Figure 7 and 9 shown, and the second state is the state during the process of the movable wall 11 turning outwards relative to the fixed wall 14, as Figure 3 、 8 and 10 shown, where the guide groove 141 is an arc groove to match the turning motion of the movable wall 11. At the same time, since the box body needs to be turned over when discharging materials by tilting, as Figure 6 、 7 and 9 shown, the movable wall 11 is at the bottom of the turnover box, and the movable wall 11 is turned from the first state to the second state. The setting of the movable wall 11 is also beneficial to reducing the overall turning angle of the turnover box to reach the angle required for discharging materials by tilting, that is, when the box body turns over, the movable wall 11 can further turn relative to the fixed wall 14 along the guide groove 141 by itself, as Figure 7 and 9 shown. The box body is turned over by 90°, while the turning angle of the movable wall is greater than 90°. In addition, the upper part of the movable wall 11 protrudes from the fixed wall 14 to avoid the problem that the castings on the upper part of the box body fall under the action of inertia when braking or decelerating during transportation. The inclination of the upper end of the movable wall 11 towards the outside of the box body further increases the inclination angle of the front end of the movable wall 11 during tilting, which is more beneficial to the discharge of the castings.

[0023] As Figure 3 shown, in order to effectively control the state of the movable wall 11, in this embodiment, the limiting mechanism includes a first locking mechanism arranged on the movement track of the rotating shaft 111. The first locking mechanism is configured to lock the movable wall 11 in the first state. An unlocking mechanism is arranged on the rotating shaft 111, and the unlocking mechanism is configured to be able to release the locking state of the first locking mechanism on the movable wall 11. By controlling the relative position of the rotating shaft 111 of the movable wall 11 in the guide groove 141 through the first locking mechanism, the state of the movable wall 11 is limited, as Figure 3 shown. When the rotating shaft 111 is located on the path between the starting position of the guide groove 141 and the first locking mechanism, it corresponds to the first state of the movable wall 11, as Figure 8 and 10As shown, the rotating shaft 111 is located on the path between the first locking mechanism and the end position of the guiding groove 141, corresponding to the second state of the movable wall 11. As Figure 3 As shown, when the movable wall 11 is in the first state, due to the locking effect of the first locking mechanism and the pressure of the casting on the material pushing mechanism, during the loading of the casting into the box body and the transportation process of the turnover box, the movable wall 11 will not be converted into the second state. Therefore, there will be no phenomenon that the casting in the box body is rearranged and compacted in the second state due to the premature entry of the movable wall 11 into the second state before pouring, and the casting is stuck again in the box body and cannot be poured out. When the box body is turned over to pour the material, the locking state of the first locking mechanism on the movable wall 11 is released by the unlocking mechanism. Under the pressure of the self-weight of the casting on the movable wall 11, as Figure 8 and 10 As shown, the movable wall 11 is flipped from the first state to the second state, so as to break the stuck state of the casting in the box body, and the casting slides down along the movable wall 11 and is poured out.

[0024] As Figure 4 As shown, since the guiding grooves 141 and the limiting mechanisms are provided on the fixed walls 14 on both sides of the movable wall 11, it is more beneficial to the stable movement of the movable wall 11. In order to facilitate the unlocking mechanism to control the limiting mechanisms on both sides of the movable wall 11 at the same time, in this embodiment, the rotating shaft 111 penetrates through the movable wall 11 along the width direction of the movable wall 11, and the rotating shaft 111 is rotatably connected to the movable wall 11. As Figures 3 - 5 As shown, the unlocking mechanism includes unlocking protrusions 112 and operating rods 113 fixed at both ends of the rotating shaft 111. The unlocking protrusions 112 protrude from the surface of the rotating shaft 111 and correspond to the positions of the limiting mechanisms. The operating rods 113 are located outside the guiding grooves 141. When it is necessary to unlock the first locking mechanism, by rotating the operating rod 113, the rotating shaft 111 can rotate. Then, the unlocking protrusions 112 at both ends of the rotating shaft 111 rotate simultaneously, so as to simultaneously unlock the first locking mechanisms on both sides of the movable wall 11. The operation is more convenient, and the operating rod 113 is located on one side of the box body turnover box, so the operation is safer.

[0025] As Figure 3 、 8As shown in FIGS. 9 and 10, specifically, in one embodiment, the first locking mechanism includes a first locking pin 15. A first installation groove is formed in the bottom wall of the guiding groove 141. The first locking pin 15 is slidably installed in the first installation groove. A first spring 151 is further provided between the bottom of the first installation groove and the bottom of the first locking pin 15. One side of the first locking pin 15 close to the second state of the movable wall 11 is an inclined surface. The first installation groove is in the shape of a stepped hole, and its upper end with a smaller diameter extends to the bottom wall of the guiding groove 141. The first locking pin 15 is also in a stepped shape, and its end with a smaller diameter extends into the guiding groove 141. The first locking pin 15 is limited and abutted against the stepped surface of the first installation groove through its stepped surface. The first spring 151 is installed in the cavity with a larger diameter at the lower end of the first installation groove. Further, the first locking pin 15 is slidably arranged in the first installation groove under the support of the first spring 151. Further, when the operating rod 113 is rotated, the rotating shaft 111 drives the unlocking protrusion 112 to press against the first locking pin 15, and the first locking pin 15 retracts into the first installation groove, thereby releasing the locking of the rotating shaft 111, and the movable wall 11 can freely enter the second state. Since the side of the first locking pin 15 close to the second state of the movable wall 11 is an inclined surface, when a casting is loaded into the box body, the casting presses on the feeding mechanism, thereby driving the movable wall 11 to rotate. Even when the movable wall 11 is in the second state, its rotating shaft 111 can automatically compress the first locking pin 15 into the first installation groove and then cross the first locking mechanism to make the movable wall 11 return to the first state. After the rotating shaft 111 crosses the first locking mechanism, the first spring 151 automatically pushes up the first locking pin 15, thereby locking the movable wall 11 in the first state.

[0026] As the casting in the box body is poured and discharged, the pressure of the casting on the movable wall 11 decreases. Under the restoring force of the elastic element 132, the distance between the rotating shaft 111 of the movable wall 11 and the first limiting mechanism gradually decreases in the second state, that is, the inclination angle of the movable wall 11 for discharging materials gradually decreases, resulting in the problem that the remaining castings in the box body cannot be smoothly discharged due to the small inclination angle of the movable wall 11. To solve the above technical problems, in some embodiments, as Figure 3 、 8 shown in FIGS. 9 and 10, the limiting mechanism further includes a second locking mechanism. The second locking mechanism is arranged on the path where the rotating shaft 111 is located when the movable wall 11 is in the second state, as Figures 7 - 10As shown, the second locking mechanism divides the second state of the movable wall 11 into a transition state and a final state. In the final state, compared with the transition state, the inner cavity space and the opening of the box body increase. The second locking mechanism is configured to lock the movable wall 11 in the final state, and the unlocking mechanism is configured to be able to release the locking state of the second locking mechanism on the movable wall 11. When the movable wall 11 is in the final state, the elastic element 132 is in a compressed state. When the turnover box is tilted as a whole for discharging, the first locking mechanism is unlocked. Under the self-weight pressure of the casting, the movable wall 11 is converted from the first state to the second state. At the beginning of discharging, there are more castings and the pressure on the movable wall 11 is greater. The movable wall 11 is converted from the transition state to the final state, and the elastic element 132 is compressed. As Figure 9 and 10 shown, at this time, the turning angle of the movable wall 11 relative to the box body is the largest. As the castings are discharged, the number of castings decreases, and at the same time, the pressure on the movable wall 11 also gradually decreases. Under the action of the restoring force of the elastic element 132, the turning angle of the movable wall 11 relative to the box body also gradually decreases, resulting in a gradual decrease in the tilting angle of the box body for discharging. The rotating shaft 111 of the movable wall 11 approaches the second locking mechanism, and finally the rotating shaft 111 abuts against the second locking mechanism. The turning angle of the movable wall 11 relative to the box body cannot continue to decrease. At this time, the movable wall is still in the final state, ensuring the tilting angle required for the box body to be tilted for discharging and ensuring that the castings can be completely poured out. Without the second locking mechanism, when there are only a small number of castings in the box body, the elastic element 132 tends to be in a natural state. Although the movable wall 11 is still in the second state (transition state position), the remaining castings in the box body may not be completely poured out because the tilting angle of the turnover box is not enough and the friction between the castings and the movable wall 11 is large.

[0027] For the convenience of manufacturing and use, in this embodiment, the structures of the second locking mechanism and the first locking mechanism are set to be basically the same structure, as Figure 3 、 8As shown in Figs. 5, 6, 7, 9 and 10, the second locking mechanism includes a second locking pin 16. A second installation groove is formed in the bottom wall of the guiding groove 141. The second locking pin 16 is slidably installed in the second installation groove. A second spring 161 is further arranged between the bottom of the second installation groove and the bottom of the second locking pin 16. One side of the second locking pin 16 close to the transition state of the movable wall 11 is an inclined surface. When the box body is tilted and flipped, the first locking mechanism is unlocked. Since one side of the second locking pin 16 close to the transition state is an inclined surface, under the action of the gravity of the casting on the movable wall 11, the rotating shaft 111 can automatically compress the second locking pin 16 into the second installation groove. Furthermore, the movable wall 11 can directly reach the final state automatically from the transition state, and the rotating shaft 111 cannot automatically cross the second locking pin 16 to switch from the final state to the transition state. After the inclined discharging is completed, the rotating shaft 111 is rotated through the operating rod 113, and then the unlocking protrusion 112 presses on the second locking pin 16, so that the second locking pin 16 can retract into the second installation groove. Under the action of the elastic element 132, the rotating shaft 111 can cross the second locking pin 16, and the movable wall 11 enters the transition state. When loading the casting into the box body, the casting presses on the material distributing mechanism. The flipping of the material distributing mechanism can drive the flipping of the movable wall 11. Its rotating shaft 111 acts on the inclined surface of the first locking pin 15, and then the first locking pin 15 retracts. Furthermore, the movable wall 11 crosses the first locking pin 15 and automatically switches from the transition state to the first state; or directly before loading the casting, the movable wall 11 is switched from the transition state to the first state by an external force.

[0028] As shown in Figure 1 , 5 , 6, 7 and 9. Specifically, in this embodiment, the material distributing mechanism includes a material distributing rod 12. The material distributing rod 12 is fixedly installed at the bottom of the movable wall 11 and extends towards the inside of the box body. The length of the material distributing rod 12 extending towards the inside of the box body is not greater than half of the length of the bottom plate of the box body. As shown in Figure 5 Fig. 8, three material distributing rods 12 are arranged at the bottom of the movable wall 11. When loading the casting into the box body, the casting pressing on the material distributing rods 12 can reset the movable wall 11 to the first state. The material distributing rods 12 are attached to the bottom wall of the box body. When discharging in an inclined manner, the casting presses on the movable wall 11. The acting force of the casting on the movable wall 11 increases, and the acting force on the material distributing rods 12 decreases. The first locking mechanism is released, and the flipping of the movable wall 11 drives the swinging of the material distributing rods 12 to perform the material distributing action, thereby breaking the stuck state of the casting in the box body and promoting the inclined discharging of the casting. Setting the length of the material distributing rods 12 to be not greater than half of the length of the bottom plate of the box body can reduce the impact of the casting on the connection between the material distributing rods 12 and the movable wall 11. At the same time, in order to improve the connection strength between the material distributing rods 12 and the movable wall 11, a reinforcing rib 121 can be arranged at the connection between the material distributing rods 12 and the movable wall 11.

[0029] To avoid the situation where the casting is stuck at a position that the material pushing rod 12 in the box body cannot reach when the box body is turned over for inclined discharging, as Figure 1 , 2 , 6, 7 and 9 show, an operation hole 17 can be further formed in the fixed wall 14 of the box body. The operation hole 17 is arranged at the bottom of the fixed wall 14, and the distance between the operation hole 17 and the movable wall 11 is greater than the distance that the material pushing rod 12 extends into the box body from the movable wall 11. When the above situation occurs, the operator can insert a stirring rod into the operation hole 17 to perform a stirring operation on the corresponding stuck position.

[0030] To be more conducive to breaking the stuck state between the castings, as Figure 11 shows, in another embodiment, the inner side surface of the movable wall 11 is inclined from the middle to both sides transversely, and the height gradually decreases. When the casting slides down and is discharged along the movable wall 11, due to the structure of the movable wall 11 with a higher middle and lower ends, the casting has a tendency to move towards both sides of the movable wall 11 while sliding down and being discharged, causing the castings to loosen, which is conducive to the separation between the castings and is conducive to breaking the stuck state between the castings.

[0031] To avoid a gap being generated between the movable wall 11 and the fixed wall 14 after the movable wall 11 is converted from the first state to the second state, and to prevent the casting from being stuck in the gap during the dumping and discharging process, as Figure 2 shows, an extension plate 142 is arranged on one side of the fixed wall 14, and the extension plate 142 extends to the position of the maximum turning angle of the movable wall 11. One side of the extension plate 142 can be arranged to be inclined, and its width gradually decreases from top to bottom.

[0032] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of this application.

Claims

1. A turnover box for anti-jamming castings, characterized in that, It includes a box body with an open upper end; one of the side walls of the box body is a movable wall (11); The movable wall (11) is configured to have at least a first state and a second state. In the second state, compared with the first state, the inner cavity space and the opening of the box body are increased; a limiting mechanism for controlling the conversion of the movable wall (11) between the first state and the second state is provided on the box body; A material distributing mechanism that swings with the change of the state of the movable wall (11) is arranged in the box body; A support mechanism (13) is further provided on the box body. The support mechanism (13) includes a support arm (131) and an elastic element (132). The support arm (131) is fixed on the box body and extends to the outside of the movable wall (11). The two ends of the elastic element (132) are respectively fixedly connected with the support arm (131) and the movable wall (11). When the movable wall (11) is in the first state, the elastic element (132) is in a stretched state. When the movable wall (11) is in the second state, the elastic element (132) is in a natural state or a compressed state.

2. The anti-jamming casting turnover box according to claim 1, characterized in that, The side wall of the box body adjacent to the movable wall (11) is a fixed wall (14). The bottom of the movable wall (11) is rotatably arranged at the bottom of the fixed wall (14); a guide groove (141) is provided on the fixed wall (14). The upper part of the movable wall (11) is slidably matched with the guide groove (141) through a rotating shaft (111). The height of the movable wall (11) is higher than that of the fixed wall (14), and the upper end of the movable wall (11) inclines towards the outside of the box body.

3. The anti-jamming casting turnover box according to claim 2, wherein, The limiting mechanism includes a first locking mechanism arranged on the movement track of the rotating shaft (111). The first locking mechanism is configured to lock the movable wall (11) in the first state. An unlocking mechanism is arranged on the rotating shaft (111). The unlocking mechanism is configured to be able to release the locking state of the first locking mechanism on the movable wall (11).

4. The anti-jamming casting turnover box according to claim 3, characterized in that, The rotating shaft (111) penetrates through the movable wall (11) along the width direction of the movable wall (11), and the rotating shaft (111) is rotatably connected with the movable wall (11). The unlocking mechanism includes unlocking protrusions (112) and an operating rod (113) fixed at both ends of the rotating shaft (111). The unlocking protrusions (112) protrude from the surface of the rotating shaft (111) and correspond to the position of the limiting mechanism. The operating rod (113) is located outside the guide groove (141).

5. The anti-jamming casting turnover box according to claim 3 or 4, characterized in that, The first locking mechanism includes a first locking pin (15). A first installation groove is opened on the bottom wall of the guide groove (141). The first locking pin (15) is slidably installed in the first installation groove. A first spring (151) is further arranged between the bottom of the first installation groove and the bottom of the first locking pin (15). One side of the first locking pin (15) close to the second state of the movable wall (11) is an inclined surface.

6. The anti-jamming casting turnover box according to claim 3 or 4, characterized in that, The described limiting mechanism further includes a second locking mechanism. The second locking mechanism is disposed on the path of the rotating shaft (111) when the movable wall (11) is in the second state. The second locking mechanism divides the second state of the movable wall (11) into a transition state and a final state. In the final state, compared with the transition state, the inner cavity space and the opening of the box increase. The second locking mechanism is configured to lock the movable wall (11) in the final state, and the unlocking mechanism is configured to be able to release the locking state of the second locking mechanism on the movable wall (11). When the movable wall (11) is in the final state, the elastic element (132) is in a compressed state.

7. The anti-jamming casting turnover box according to claim 6, characterized in that, The described second locking mechanism includes a second locking pin (16). A second installation groove is formed in the bottom wall of the guiding groove (141). The second locking pin (16) is slidably installed in the second installation groove. A second spring (161) is further disposed between the bottom of the second installation groove and the bottom of the second locking pin (16). One side of the second locking pin (16) close to the transition state of the movable wall (11) is an inclined surface.

8. The anti-jamming casting turnover box according to claim 2, characterized in that, The described material feeding mechanism includes a material feeding rod (12). The material feeding rod (12) is fixedly installed at the bottom of the movable wall (11) and extends towards the inside of the box body. The length of the material feeding rod (12) extending towards the inside of the box body is not greater than half of the length of the bottom plate of the box body.

9. The anti-jamming casting turnover box according to claim 8, wherein, An operation hole (17) is provided at the bottom of the fixed wall (14). The distance between the operation hole (17) and the movable wall (11) is greater than the distance that the material feeding rod (12) extends from the movable wall (11) into the box body.

10. The anti-jamming casting turnover box according to claim 1, characterized in that, The inner side surface of the movable wall (11) is inclined from the middle to both sides along its transverse direction.

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