Sand box turnover device for casting production line
By designing a sand box flip device for casting production lines, using components such as driving, spreader and suspension shaft, the problems of complex sand box flip operation, large safety hazards and poor separation in the existing technology are solved, and an efficient, stable and safe sand box flip process is achieved.
Patent Information
- Application Number
- CN202420348024.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-02-26
AI Technical Summary
In the prior art, the sand box flip device has complex operation, high safety risks, easy to break the chain, and poor stability, resulting in poor separation of castings and molded sand.
A sand box flip device for casting production lines is designed, using driving and spreader combinations to achieve flipping using the suspension shaft and support shaft on the sand box, and the separation of the casting and molding sand is achieved through inclined blanking plates and sand-falling holes.
It improves the efficiency and stability of sand box flip, reduces operation difficulty and safety hazards, and realizes good separation between castings and molding sand and recycling of molding sand.
Smart Images
Figure CN222626167U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting, in particular to a sand box turning device for a casting production line. Background Art
[0002] Casting is the process of melting metal into liquid that meets certain requirements and pouring it into a mold. After cooling, solidification and cleaning, a casting with a predetermined shape, size and performance is obtained. Sand casting is a process in which a mold is made with molding sand and then poured. Sand casting is a basic process in casting production and is widely used because the mold manufacturing is simple, the molding sand used is widely available and low in price, and it has good adaptability to single, batch and mass production of castings.
[0003] After sand casting is completed, the casting and the molding sand need to be poured out of the sand box to facilitate the removal of the casting and the recycling of the molding sand. For this purpose, the sand box needs to be turned over. In the prior art, the turning of the traditional sand box is mostly completed by a turning wheel or a chain-type turning machine. The turning wheel is complicated to operate and has high requirements on the operation of personnel. The chain of the chain-type turning machine is easily broken, which seriously affects the service life of the chain and poses a safety hazard. In addition, the slippage of the chain can easily cause the sand box to have poor turning stability, so that the casting and the molding sand cannot be well separated.
[0004] Therefore, it is necessary to propose a sand box turning device for a casting production line to overcome the defects of the prior art. Utility Model Content
[0005] The utility model aims to solve the problems in the prior art and provides a sand box turning device for a casting production line.
[0006] The technical solution of the utility model is:
[0007] A sand box turning device for a casting production line comprises a conveying track, on which a sand turning box is slidably arranged, a gantry, a turning frame, a falling sand box and a material receiving box, the gantry is straddled above the conveying track, a crane is arranged on the top of the gantry, a sling is connected to the hanging parts of the crane, the falling sand box and the material receiving box are both arranged inside the gantry, the falling sand box is arranged on one side of the conveying track, the material receiving box is arranged on the side of the falling sand box away from the conveying track, and the turning frame is arranged in the middle of the gantry and is located above the falling sand box.
[0008] Preferably, a suspension shaft and a support shaft are provided on both sides of the foundry box, the axis of the suspension shaft coincides with the central plane of the foundry box, and the support shaft is provided obliquely below the suspension shaft;
[0009] The axis of the suspension shaft coincides with the center plane of the foundry box to ensure that the foundry box is stably lifted, and the support shaft and the suspension shaft form an eccentric structure, so that the foundry box can be turned over with the support shaft as the fulcrum.
[0010] Preferably, the sand-falling box is configured as a structure with an open top and one side, an inclined material-falling plate is provided in the sand-falling box, a plurality of sand-falling holes are evenly distributed on the material-falling plate, and a conical sand-receiving box is provided at the bottom of the sand-falling box;
[0011] The sand box is flipped over to pour the castings and molding sand from the top into the sand box. The castings and molding sand slide along the inclined drop plate under the action of gravity. During the sliding process, the molding sand falls from the sand drop hole into the sand receiving box, and the casting falls into the receiving box from the open opening on one side of the sand drop box. The conical sand receiving box is convenient for collecting the molding sand.
[0012] Preferably, two support rods are arranged at intervals on the flip frame, and grooves matching the support shafts are arranged on the surfaces of the support rods;
[0013] The support rod supports the support shaft, and the support shaft is placed in the groove for positioning.
[0014] Preferably, two L-shaped positioning rods are arranged at intervals on the flip frame, the vertical section of the L-shaped positioning rod is vertically arranged on the flip frame, the horizontal section of the L-shaped positioning rod extends in the direction of the track, and the end of the horizontal section of the L-shaped positioning rod is provided with a protective pad;
[0015] When the sand casting box is lifted and moved, the L-shaped positioning rod is used to limit the moving position of the sand casting box. The protective pad avoids the hard collision between the sand casting box and the positioning rod, thereby preventing the surface of the sand casting box from being damaged.
[0016] Preferably, the hanger comprises a crossbar and a hanging plate, the top of the crossbar is provided with a hanging ear, two hanging plates are symmetrically arranged at both ends of the crossbar, and one end of the hanging plate is provided with a hook adapted to the suspension shaft;
[0017] The sand-making box is connected with the hanging parts of the crane through the hanging ears, and is hung on the hanging shaft through the hooks on the hanging plates to lift the sand-making box.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] The utility model uses the combined effect of a crane and a hanger, and utilizes the eccentric suspension shaft and the support shaft on the sand-turning box and the weight of the sand-turning box itself, so that the sand-turning box can be turned over around the support shaft, and the casting and the molding sand are dumped into the sand-falling box; the sand-turning box is supported by the support rods on the turning frame, and the support shafts are positioned by the grooves on the support rods, so that deviation is avoided during the turning process; the casting is separated from the molding sand by the inclined dropping plate, and the molding sand falls into the sand receiving box through the sand falling holes for recovery, and the casting falls into the receiving box; the overall structure is simple, the efficiency and stability of the sand-turning box are improved, the operation requirements for the operator are reduced, and the safety of use is improved, and the practical use and promotion value are good. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the sand-turning box of the utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the overturning frame of the utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the sand-falling box of the utility model;
[0024] Figure 5 It is a schematic diagram of the structure of the sling of the utility model.
[0025] Among them, 1. conveying track; 2. sand turning box; 21. suspension shaft; 22. support shaft; 3. gantry; 4. material receiving box; 5. crane; 6. turning frame; 61. support rod; 62. groove; 63. L-shaped positioning rod; 64. protective pad; 7. sand falling box; 71. material falling plate; 72. sand falling hole; 73. sand receiving box; 8. lifting device; 81. cross bar; 82. lifting ear; 83. hanging plate; 84. hook. DETAILED DESCRIPTION
[0026] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.
[0027] like Figure 1-Figure 5As shown, a sand box turning device for a casting production line includes a conveying track 1, a gantry 3, a turning frame 6, a sand box 7 and a material receiving box 4. The conveying track 1, the sand box 7 and the material receiving box 4 are all installed on the ground or infrastructure inside the gantry 3. Specifically, the conveying track 1 is located at the front side of the gantry 3 and is used to convey the sand box 2. The sand box 2 can move on the conveying track 1 to convey the carried castings and molding sand. A crane 5 is installed on the top of the gantry 3. The crane 5 is a conventional method. The specific structure of the application is not described here. A sling 8 is connected to the hanging part of the crane 5, which is used to lift the sand casting box 2 that has been transported to the place, and to realize the flipping of the sand casting box 2 by cooperating with the flipping frame 6 installed in the middle of the gantry 3. The sand falling box 7 is located on one side of the conveying track 1 and below the flipping frame 6. It is used to catch the castings and molding sand that fall after the sand casting box 2 is flipped, and to complete the separation of the castings and molding sand. The receiving box 4 is located on the side of the sand falling box 7 away from the conveying track 1, and is used to receive the separated castings.
[0028] like Figure 1 and Figure 2 As shown, a suspension shaft 21 and a support shaft 22 are connected to both sides of the foundry box 2. The suspension shaft 21 is located at the upper part of the side wall of the foundry box 2. The axis of the suspension shaft 21 coincides with the central plane of the foundry box 2 to ensure that the foundry box 2 is stably lifted. The support shaft 22 is eccentrically distributed with the suspension shaft 21. The support shaft 22 is located obliquely below the suspension shaft 21 and close to the lower corner of the side wall of the foundry box 2. The suspension shafts 21 on both sides and the support shafts 22 on both sides are coaxially arranged. The foundry box 2 is stably lifted by the suspension shaft 21, and the eccentric structure formed by the support shaft 22 and the suspension shaft 21 enables the foundry box 2 to be flipped with the support shaft 22 as the fulcrum.
[0029] like Figure 1 and Figure 3As shown, two support rods 61 are connected to the flip frame 6, and the two support rods 61 are perpendicular to the flip frame 6 and are spaced apart. The ends of the support rods 61 extend toward the direction of the conveying track 1. The spacing between the two support rods 61 is greater than the width of the foundry box 2 and less than the distance between the outer end surfaces of the two support shafts 22, so that the foundry box 2 can be placed between the two support rods 61, and the two support shafts 22 can be supported on the two support rods 61. Grooves 62 that match the support shafts 22 are machined on the surfaces of the support rods 61. After the foundry box 2 is lifted and placed on the support rods 61, the support shafts 22 fall into the grooves 62 for positioning. Two spaced apart grooves are also installed on the flip frame 6. The L-shaped positioning rod 63 of the cloth, the distance between the two L-shaped positioning rods 63 is smaller than the width of the sand casting box 2, the vertical section of the L-shaped positioning rod 63 is vertically connected to the turning frame 6, and the horizontal section of the L-shaped positioning rod 63 extends in the direction of the conveying track 1, and a protective pad 64 is installed at the end of the horizontal section of the L-shaped positioning rod 63. The protective pad 64 is made of soft material. During the process of the sand casting box 2 being lifted and moved, the moving position of the sand casting box 2 can be limited by the L-shaped positioning rod 63. The protective pad 64 made of soft material can avoid hard collision between the sand casting box 2 and the L-shaped positioning rod 63, prevent the surface of the sand casting box 2 from being damaged by bumps, and increase the service life of the sand casting box 2.
[0030] like Figure 1 and Figure 4 As shown, the sand box 7 is processed into a structure with an open top and one side, and an inclined blanking plate 71 is installed inside the sand box 7. The inclination direction of the blanking plate 71 is downward from the closed side wall of the sand box 7 to the open side wall. A number of evenly distributed sand holes 72 are processed on the blanking plate 71, and a conical sand receiving box 73 is connected to the bottom of the sand box 7. The sand box 2 is turned over to pour the casting and molding sand into the sand box 7 from the opening on the top. The casting and molding sand slide along the inclined blanking plate 71 under the action of gravity. During the sliding process, the molding sand falls from the sand falling hole 72 into the sand receiving box 73, and the casting falls from the opening on one side of the sand box 7 into the receiving box 4. The conical sand receiving box 73 facilitates the collection of molding sand.
[0031] like Figure 1 and Figure 5 As shown, the sling 8 includes a cross bar 81 and a hanging plate 83. A lifting ear 82 is installed on the top of the cross bar 81 for connecting with the hanging parts of the crane 5. Two hanging plates 83 are symmetrically connected to the two ends of the cross bar 81. The lower end of the hanging plate 83 is processed with a hook 84 that is compatible with the suspension shaft 21, which is used to hook the suspension shaft 21 to lift the sand box 2.
[0032] The working principle of the utility model is:
[0033] When in use, the foundry box 2 carrying the casting and the molding sand is transported to the inside of the gantry 3 through the conveying track 1, the crane 5 is started, and the hanging parts of the crane 5 drive the hanger 8 to descend, so that the two hanging plates 83 are respectively located on both sides of the foundry box 2, and are hooked on the two hanging shafts 21 through the hooks 84 on the hanging plates 83. The foundry box 2 is lifted by the crane 5 and separated from the conveying track 1. The crane 5 drives the foundry box 2 to move toward the flip frame 6, and the foundry box 2 moves between the two struts 61. The rear part of the foundry box 2 abuts against the protective pad 64 at the end of the horizontal section of the L-shaped positioning rod 63, limiting the moving position of the foundry box 2. After moving into position, the crane 5 places the foundry box 2 on the strut 61, and the support shaft 22 falls into the groove 62 on the surface of the strut 61 to realize the flip positioning;
[0034] The hanging parts of the traveling crane 5 descend, and during the descent process, the hook of the hanging plate 83 maintains the force on the hanging shaft 21. Due to the eccentric structure of the hanging shaft 21 and the supporting shaft 22, the foundry box 2 flips around the supporting shaft 22 under the action of its own gravity, and the castings and molding sand in the foundry box 2 are poured onto the blanking plate 71 in the sand falling box 7. Due to the inclined arrangement of the blanking plate 71, the castings and molding sand slide along the blanking plate 71 under the action of gravity. During the sliding process, most of the molding sand falls from the sand falling hole 72 into the sand receiving box 73 below, and the casting slides from the open position on one side of the sand falling box 7 and falls into the receiving box 4, thereby realizing the separation of the casting and the molding sand and the recovery of the molding sand.
[0035] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.
Claims
1. A sand box turning device for a casting production line, comprising a conveying track (1), on which a sand box (2) is slidably arranged, characterized in that: It also includes a gantry (3), a turnover frame (6), a sand-falling box (7) and a material receiving box (4), wherein the gantry (3) is arranged across the top of the conveying track (1), a traveling crane (5) is arranged on the top of the gantry (3), a hanging member of the traveling crane (5) is connected to a sling (8), the sand-falling box (7) and the material receiving box (4) are both arranged inside the gantry (3), the sand-falling box (7) is arranged on one side of the conveying track (1), the material receiving box (4) is arranged on the side of the sand-falling box (7) away from the conveying track (1), and the turnover frame (6) is arranged in the middle of the gantry (3) and is located above the sand-falling box (7).
2. The sand box turning device for a casting production line according to claim 1 is characterized in that: A suspension shaft (21) and a support shaft (22) are provided on both sides of the foundry box (2); the axis of the suspension shaft (21) coincides with the central plane of the foundry box (2); and the support shaft (22) is provided obliquely below the suspension shaft (21).
3. The sand box turning device for a casting production line according to claim 1 is characterized in that: The sand falling box (7) is configured as a structure with an open top and one side. An inclined material falling plate (71) is provided in the sand falling box (7). A plurality of sand falling holes (72) are evenly distributed on the material falling plate (71). A conical sand receiving box (73) is provided at the bottom of the sand falling box (7).
4. The sand box turning device for a casting production line according to claim 2 is characterized in that: Two support rods (61) are arranged at intervals on the turning frame (6), and grooves (62) matching the support shafts (22) are arranged on the surfaces of the support rods (61).
5. The sand box turning device for a casting production line according to claim 1 is characterized in that: Two L-shaped positioning rods (63) are arranged at intervals on the turning frame (6); the vertical section of the L-shaped positioning rod (63) is arranged vertically on the turning frame (6); the horizontal section of the L-shaped positioning rod (63) extends in the direction of the conveying track (1); and the end of the horizontal section of the L-shaped positioning rod (63) is provided with a protective pad (64).
6. The sand box turning device for a casting production line according to claim 2, characterized in that: The hanger (8) comprises a cross bar (81) and a hanging plate (83), the top of the cross bar (81) is provided with a hanging ear (82), the two hanging plates (83) are symmetrically arranged at the two ends of the cross bar (81), and one end of the hanging plate (83) is provided with a hanging hook (84) adapted to the suspension shaft (21).