Arc-shaped sand box

Abstract

The utility model discloses an arc-shaped sand box which comprises a first arc-shaped sand box and a second arc-shaped sand box, arc-shaped grooves are formed in the sides, close to each other, of the first arc-shaped sand box and the second arc-shaped sand box correspondingly, a fixing block and a connecting block are arranged on the two sides of the ends, close to each other, of the first arc-shaped sand box and the second arc-shaped sand box correspondingly, a convex connecting hole is formed in one side of the fixing block, and the connecting block is matched with the convex connecting hole; a movable cavity is formed in the connecting block, movable holes are formed in the inner walls of the two sides of the movable cavity, and movable blocks are movably mounted in the two movable holes. According to the utility model, the first arc-shaped sand box and the second arc-shaped sand box are fixed, so that the sand boxes can be prevented from expanding or moving, the structural size of a casting formed in the sand boxes is more accurate, and the production process of the casting is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of sand boxes, in particular to an arc-shaped sand box. Background Art

[0002] During the casting production process, the sand box is first placed on the product mold, and the fluid resin sand is injected. After the resin sand solidifies, the sand box is turned over to form a corresponding cavity. The appropriate sand core is assembled inside the cavity to form the inner cavity of the casting product, and then the box is closed to form a complete casting structure cavity. Molten iron is injected into the casting structure cavity. After the molten iron solidifies, the sand box is opened after the insulation time, and the attached resin sand is removed to form a finished casting.

[0003] In view of the existing patent CN201220618813.3, a sand-saving flask for manufacturing high-strength sand molds is provided. The upper and lower boxes of the device are both provided with arc plates, which are closely attached to the edges of the inner walls of the flask and fixedly connected to the inner walls of the flask. The part of the arc plate flush with the port of the flask is fixed to the side wall of the flask through a connecting plate. Compared with the traditional flask, the arrangement of the arc plates in the novel flask changes the sand-containing space in the flask from a cube to a nearly spherical shape, thereby reducing the sand-filling space required for the flask, greatly reducing the required sand-filling amount, and reducing the weight of the flask, which can effectively improve the production efficiency of the casting process and solve the technical problem that the traditional flask requires a large amount of sand-filling, thereby increasing the weight of the flask and making it inconvenient to move. However, the locking mechanism provided in the device has a poor locking effect, which can easily lead to the loosening of the sand mold during the casting process, which not only affects the molding quality of the casting product but also poses a safety hazard. Therefore, it does not meet the existing needs. In this regard, we propose an arc flask. Utility Model Content

[0004] The utility model aims to provide an arc-shaped sand box to solve the problem of the existing patent CN201220618813.3 proposed in the above background technology, a sand-saving sand box for manufacturing high-strength sand molds, wherein arc plates are arranged in the upper box body and the lower box body of the device, the arc plates are fixedly connected to the inner wall of the sand box closely against the edge of the inner wall of the sand box, and the part of the arc plates flush with the port of the box body is fixed to the side wall of the box body through a connecting plate. Compared with the traditional sand box, the arrangement of the arc plates in the novel sand box changes the sand-containing space in the sand box from a cube to a near-spherical shape, reduces the sand filling space required for the sand box, greatly reduces the required sand filling amount, and reduces the weight of the sand box at the same time, which can effectively improve the technical effect of the production efficiency of the casting process, and solves the technical problem that the traditional sand box requires a large amount of sand filling, thereby increasing the weight of the sand box and making it inconvenient to move; however, the locking mechanism arranged in the device has a poor locking effect, which is easy to cause the sand mold to loosen during the casting process, which not only affects the molding quality of the casting product but also has safety hazards and other problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an arc-shaped sand box, comprising an arc-shaped sand box No. 1 and an arc-shaped sand box No. 2; arc-shaped grooves are provided on the sides of the arc-shaped sand box No. 1 and the arc-shaped sand box No. 2 that are close to each other, and a fixed block and a connecting block are respectively arranged on both sides of the ends of the arc-shaped sand box No. 1 and the arc-shaped sand box No. 2 that are close to each other, a convex connecting hole is provided on one side of the fixed block, and the connecting block is adapted to the convex connecting hole, a movable cavity is provided on the connecting block, and movable holes are provided on the inner walls of both sides of the movable cavity, movable blocks are movably installed in the two movable holes, and both sides of the movable blocks extend out of the movable holes, and a plurality of latching teeth are fixedly installed on the sides of the two movable blocks that are away from each other, a rotating rod is rotatably installed on the side wall of the movable cavity, a rotating disk is fixedly sleeved on the rotating rod, and two pulling rods are rotatably installed on the bottom side of the rotating disk, and one end of the two pulling rods is rotatably installed on the side walls of the two movable blocks respectively;

[0006] A first fixed plate is provided on both sides of the connecting block, and the first fixed plate is fixedly connected to the side wall of the No. 2 arc sand box, a locking plate is provided on the first fixed plate, the locking plate is movably hinged on the first fixed plate, and a locking hole is provided on the locking plate; a second fixed plate is provided on both sides of the fixed block and located on the No. 1 arc sand box, a movable locking rod is provided on the second fixed plate, and the movable locking rod is movably connected to the second fixed plate.

[0007] Preferably, the shape specification of the movable locking rod is adapted to the locking hole on the locking plate, and the locking plate is rotated between the No. 1 arc sand box and the No. 2 arc sand box so that the locking hole on the locking plate passes through the movable locking rod on the second fixed plate, and the movable locking rod is rotated and clamped to fix the No. 1 arc sand box and the No. 2 arc sand box.

[0008] Preferably, two fixed rods and a telescopic rod are fixedly installed on the sides of the two moving blocks that are close to each other, and a telescopic groove is opened at one end of the fixed rod, and one end of the telescopic rod extends into the telescopic groove; one end of the telescopic rod is fixedly installed with one end of a telescopic spring located in the telescopic groove, and the other end of the telescopic spring is fixedly installed on the bottom of the telescopic groove.

[0009] Preferably, limit grooves are provided on the inner walls on both sides of the telescopic groove, and limit blocks cooperating with the limit grooves are fixedly installed on both sides of one end of the telescopic rod located in the telescopic groove, and the two limit blocks are slidably installed in the two limit grooves respectively.

[0010] Preferably, a rotating hole is opened on one side wall of the movable cavity, and the top end of the rotating rod rotates through the rotating hole and a cross rotating block is fixedly installed, and a protective sleeve is sleeved on the cross rotating block.

[0011] Preferably, a plurality of slots are provided on the inner walls on both sides of the convex connection hole, and the plurality of slots are respectively matched with a plurality of latch teeth; one side of the latch teeth is inclined, and the other side of the latch teeth is vertically arranged.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model aligns and merges the first arc sand box and the second arc sand box when the first arc sand box and the second arc sand box need to be connected and fixed, so that the connecting block moves in the direction of the fixed block, so that the fixed block moves into the convex connecting hole. When moving into the convex connecting hole, since one side of the latch tooth is inclined, the latch tooth can be squeezed to move during movement, and the movement of the latch tooth drives the moving block to move in the moving hole. The movement of the moving block will drive the telescopic rod to move in the telescopic groove and squeeze the telescopic spring, so that the multiple latch teeth move into the moving hole. As the connecting block continues to move in the convex connecting hole until it is clamped, the elastic force of the telescopic spring can drive the moving block to move, thereby driving the multiple latch teeth to move into the corresponding multiple latch grooves, so that the connecting block can be fixed on the fixed block, which is convenient for effective The first arc sand box and the second arc sand box are tightly closed and locked, and then the lock plate on the side wall of the second arc sand box is rotated, and the lock hole on the lock plate passes through the movable lock rod on the first arc sand box and the movable lock rod is rotated and locked, so that the first arc sand box and the second arc sand box are further locked; the closing and turning processes are made more convenient and quick, and the connection strength of the first arc sand box and the second arc sand box is strengthened, which is safe, firm and practical; one side of the clamping teeth is inclined and the other side is horizontal, so the clamping teeth can be squeezed in but not out; by fixing the first arc sand box and the second arc sand box, the sand box can be prevented from expanding or moving, so that the structural size of the casting formed in the sand box is more accurate and the production process of the casting is safer;

[0014] 2. When the utility model needs to be dismantled, the movable locking rod is first rotated to separate the locking plate and the movable locking rod, and the cross rotating block is rotated. The rotation of the cross rotating block will drive the rotating rod to rotate, the rotation of the rotating rod drives the rotating disk to rotate, the rotation of the rotating disk drives the pulling rod to move, and the movement of the pulling rod drives the moving block to move. The moving block can be limited by the moving hole, so that the moving block and the latch tooth can be driven to move into the moving hole, which is convenient for taking the connecting block out of the convex connecting hole, saving time and effort and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial cutaway view of the connection block of the utility model;

[0017] Figure 3 It is a schematic diagram of the local structure between the fixed rod and the telescopic rod of the utility model.

[0018] In the figure: 1. No. 1 curved sand box; 2. No. 2 curved sand box; 3. First fixed plate; 4. Locking plate; 5. Locking hole; 6. Second fixed plate; 7. Movable locking rod; 8. Fixed block; 9. Convex connecting hole; 10. Slot; 11. Connecting block; 12. Turning rod; 13. Cross turning block; 14. Turning hole; 15. Movable cavity; 16. Moving block; 17. Moving hole; 18. Gear; 19. Fixed rod; 20. Telescopic rod; 21. Pulling rod; 22. Telescopic slot; 23. Limiting slot; 24. Telescopic spring; 25. Limiting block; 26. Turntable. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 3 The utility model provides an embodiment: an arc-shaped sand box, including a first arc-shaped sand box 1 and a second arc-shaped sand box 2; the first arc-shaped sand box 1 and the second arc-shaped sand box 2 are both provided with arc-shaped grooves on one side close to each other, and the first arc-shaped sand box 1 and the second arc-shaped sand box 2 are respectively provided with a fixing block 8 and a connecting block 11 on both sides of one end close to each other, a convex connecting hole 9 is provided on one side of the fixing block 8, and the connecting block 11 is adapted to the convex connecting hole 9, and an active cavity 15 is provided on the connecting block 11, and the active cavity 15 A moving hole 17 is provided on the inner wall of both sides, and a moving block 16 is movably installed in each of the two moving holes 17, and both sides of the moving block 16 extend outside the moving hole 17, and a plurality of latching teeth 18 are fixedly installed on the side away from each other of the two moving blocks 16, and a rotating rod 12 is rotatably installed on the side wall of the movable cavity 15, and a rotating disk 26 is fixedly sleeved on the rotating rod 12, and two pulling rods 21 are rotatably installed on the bottom side of the rotating disk 26, and one end of the two pulling rods 21 is rotatably installed on the side walls of the two moving blocks 16 respectively;

[0021] A first fixed plate 3 is provided on both sides of the connecting block 11, and the first fixed plate 3 is fixedly connected to the side wall of the No. 2 arc sand box 2, a locking plate 4 is provided on the first fixed plate 3, the locking plate 4 is movably hinged on the first fixed plate 3, and a locking hole 5 is opened on the locking plate 4; second fixed plates 6 are provided on both sides of the fixed block 8 and located on the No. 1 arc sand box 1, a movable locking rod 7 is provided on the second fixed plate 6, and the movable locking rod 7 is movably connected to the second fixed plate 6.

[0022] The shape and specification of the movable locking rod 7 are adapted to the locking hole 5 on the locking plate 4. The locking plate 4 is rotated between the No. 1 arc sand box 1 and the No. 2 arc sand box 2 so that the locking hole 5 on the locking plate 4 passes through the movable locking rod 7 on the second fixed plate 6. The movable locking rod 7 is rotated and engaged to fix the No. 1 arc sand box 1 and the No. 2 arc sand box 2.

[0023] Two fixed rods 19 and a telescopic rod 20 are fixedly installed on the sides of the two moving blocks 16 that are close to each other, and a telescopic groove 22 is opened at one end of the fixed rod 19, and one end of the telescopic rod 20 extends into the telescopic groove 22; one end of the telescopic rod 20 is fixedly installed with one end of a telescopic spring 24 located in the telescopic groove 22, and the other end of the telescopic spring 24 is fixedly installed at the bottom of the telescopic groove 22.

[0024] Limiting grooves 23 are provided on the inner walls on both sides of the telescopic groove 22, and limiting blocks 25 that cooperate with the limiting grooves 23 are fixedly installed on both sides of one end of the telescopic rod 20 located in the telescopic groove 22, and the two limiting blocks 25 are slidably installed in the two limiting grooves 23 respectively.

[0025] A rotating hole 14 is provided on one side wall of the movable cavity 15, and the top end of the rotating rod 12 rotates through the rotating hole 14 and is fixedly mounted with a cross rotating block 13, and a protective sleeve is sleeved on the cross rotating block 13. By adopting the above technical solution, the cross rotating block 13 is rotated, and the rotation of the cross rotating block 13 will drive the rotating rod 12 to rotate.

[0026] Multiple slots 10 are provided on the inner walls of both sides of the convex connection hole 9, and the multiple slots 10 are respectively matched with multiple latch teeth 18; one side of the latch teeth 18 is inclined, and the other side of the latch teeth 18 is vertically arranged. By adopting the above technical solution, one side of the latch teeth 18 is inclined and the other side is horizontally arranged, so the latch teeth 18 can be squeezed in but not easily come out.

[0027] When the arc sand box is in use, when the arc sand box No. 1 and the arc sand box No. 2 need to be connected and fixed, the arc sand box No. 1 and the arc sand box No. 2 are aligned and merged, so that the connecting block 11 moves in the direction of the fixing block 8, so that the fixing block 8 moves into the convex connecting hole 9. When moving into the convex connecting hole 9, since one side of the latch tooth 18 is inclined, the latch tooth 18 can be squeezed to move during movement, and the movement of the latch tooth 18 drives the moving block 16 to move in the moving hole 17. The movement of the moving block 16 will drive the telescopic rod 20 to move in the telescopic groove 22 and squeeze the telescopic spring 24, so that multiple latch teeth 18 move into the moving hole 17. As the connecting block 11 continues to move in the convex connecting hole 9 until it is clamped, the elastic force of the telescopic spring 24 can drive the moving block 16 The movable locking rod 7 on the first arc sand box 1 is rotated and connected to the movable locking rod 7 on the second arc sand box 2, so that the first arc sand box 1 and the second arc sand box 2 are further locked; the closing and turning process of the box becomes more convenient and quick, and the connection strength between the first arc sand box 1 and the second arc sand box 2 is strengthened, which is safe, firm and practical; one side of the locking tooth 18 is inclined and the other side is horizontal, so the locking tooth 18 can be squeezed in but not out;

[0028] When dismantling is required, the movable locking rod 7 is first rotated to separate the locking plate 4 from the movable locking rod 7, and then the cross rotating block 13 is rotated. The rotation of the cross rotating block 13 will drive the rotating rod 12 to rotate, and the rotation of the rotating rod 12 will drive the rotating disk 26 to rotate. The rotation of the rotating disk 26 drives the pulling rod 21 to move, and the movement of the pulling rod 21 drives the moving block 16 to move. The moving block 16 can be limited under the action of the moving hole 17, so that the moving block 16 and the latch tooth 18 can be driven to move into the moving hole 17, so as to facilitate the removal of the connecting block 11 from the convex connecting hole 9, which saves time and effort and is easy to use.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An arc-shaped sand box, comprising a first arc-shaped sand box (1) and a second arc-shaped sand box (2); arc-shaped grooves are provided on the sides of the first arc-shaped sand box (1) and the second arc-shaped sand box (2) close to each other, characterized in that: The first arc-shaped sand box (1) and the second arc-shaped sand box (2) are provided with a fixed block (8) and a connecting block (11) on both sides close to one end of each other, a convex connecting hole (9) is provided on one side of the fixed block (8), and the connecting block (11) is adapted to the convex connecting hole (9), a movable cavity (15) is provided on the connecting block (11), and movable holes (17) are provided on the inner walls of both sides of the movable cavity (15), and movable blocks (16) are movably installed in the two movable holes (17). ), and both sides of the moving block (16) extend outside the moving hole (17), a plurality of latching teeth (18) are fixedly installed on the sides of the two moving blocks (16) away from each other, a rotating rod (12) is rotatably installed on the side wall of the movable cavity (15), a rotating disk (26) is fixedly sleeved on the rotating rod (12), and two pulling rods (21) are rotatably installed on the bottom side of the rotating disk (26), and one end of the two pulling rods (21) is rotatably installed on the side walls of the two moving blocks (16) respectively; A first fixing plate (3) is provided on both sides of the connecting block (11), and the first fixing plate (3) is fixedly connected to the side wall of the second arc-shaped sand box (2); a locking plate (4) is provided on the first fixing plate (3), and the locking plate (4) is movably hinged on the first fixing plate (3); a locking hole (5) is provided on the locking plate (4); second fixing plates (6) are provided on both sides of the fixing block (8) and located on the first arc-shaped sand box (1); a movable locking rod (7) is provided on the second fixing plate (6), and the movable locking rod (7) is movably connected to the second fixing plate (6).

2. The arc-shaped sand box according to claim 1, characterized in that: The shape and specification of the movable locking rod (7) are matched with the locking hole (5) on the locking plate (4); the first arc-shaped sand box (1) and the second arc-shaped sand box (2) are connected by rotating the locking plate (4) so ​​that the locking hole (5) on the locking plate (4) passes through the movable locking rod (7) on the second fixed plate (6); and the movable locking rod (7) is rotated and engaged so that the first arc-shaped sand box (1) and the second arc-shaped sand box (2) are fixed.

3. The arc-shaped sand box according to claim 1, characterized in that: Two fixed rods (19) and a telescopic rod (20) are respectively fixedly installed on the sides of the two moving blocks (16) that are close to each other, and a telescopic groove (22) is opened at one end of the fixed rod (19), and one end of the telescopic rod (20) extends into the telescopic groove (22); one end of the telescopic rod (20) is fixedly installed with one end of a telescopic spring (24) located in the telescopic groove (22), and the other end of the telescopic spring (24) is fixedly installed at the bottom of the telescopic groove (22).

4. The arc-shaped sand box according to claim 3, characterized in that: Limiting grooves (23) are provided on both inner walls of the telescopic groove (22), and limiting blocks (25) cooperating with the limiting grooves (23) are fixedly installed on both sides of one end of the telescopic rod (20) located in the telescopic groove (22), and the two limiting blocks (25) are respectively slidably installed in the two limiting grooves (23).

5. The arc-shaped sand box according to claim 1, characterized in that: A rotating hole (14) is provided on one side wall of the movable cavity (15), and the top end of the rotating rod (12) rotates through the rotating hole (14) and is fixedly mounted with a cross rotating block (13), and a protective sleeve is sleeved on the cross rotating block (13).

6. The arc-shaped sand box according to claim 1, characterized in that: A plurality of slots (10) are provided on the inner walls on both sides of the convex connection hole (9), and the plurality of slots (10) are respectively matched with a plurality of latch teeth (18); one side of the latch teeth (18) is arranged obliquely, and the other side of the latch teeth (18) is arranged vertically.

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