Sand box for casting

Abstract

The utility model discloses a sand box for casting, which relates to the technical field of sand boxes and comprises a lower box body, first handles are respectively arranged at the front end and the rear end of the lower box body, limiting blocks are fixedly connected at four corners of the upper end of the lower box body, an upper box body is arranged at the upper end of the lower box body, and second handles are respectively arranged at the front end and the rear end of the upper box body. Under the combined action of the lower box body, the limiting block, the upper box body, the connecting plate, the adjusting bolt and the movable plate, the sand box can be conveniently combined, fixed and disassembled during use, under the combined action of the placing frame, the telescopic push rod, the clamping plate, the lifting device and the push plate, the sand box can be conveniently clamped and fixed, and the sand box is prevented from being damaged during casting. When the sand box moves or inclines, under the combined action of a base, a vibrator, a telescopic rod, a second spring and a buffer seat, when the sand box is used, casting sand in the sand box can fully flow when being filled, and the compactness of the sand box is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sand boxes, in particular to a sand box for casting. Background Art

[0002] The sand box is a key equipment in the production of lost foam casting. It is divided into complex sand boxes and simple sand boxes according to different uses. The complex sand box can achieve the most reasonable negative pressure field when the casting is evacuated in the sand box, so that the full-box casting is well-formed and has no defects. For some castings with simple shapes and low requirements for the uniformity of the negative pressure field during pouring, a simple sand box can be used. At present, a sand box is required for casting. The existing technology has the following problems:

[0003] For example, a Chinese patent for a casting sand box (publication number CN108188358A, application date 2018.01.02) discloses that it includes an upper sand box and a lower sand box, both of which are hollow rectangular parallelepipeds, the side wall of the upper sand box is provided with an upper closing box sleeve, the other end of the upper closing box sleeve is provided with an upper handle, the side wall of the lower sand box is provided with a lower closing box sleeve, the other end of the lower closing box sleeve is provided with a lower handle, the four edges of the opening of the upper sand box are provided with upper clamping grooves, the edge of the opening of the upper sand box is clamped with an upper box edge, the end of the upper box edge is provided with an upper clamping block, the upper clamping block is clamped with the upper clamping groove, the four edges of the opening of the lower sand box are provided with lower clamping grooves The edge of the lower sand box opening is clamped with the lower box edge, the end of the lower box edge is provided with a lower clamping block, the lower clamping block is clamped with the lower clamping slot, the upper box sleeve is vertically arranged with the side wall of the upper sand box, the lower end face of the upper box sleeve is in the same horizontal plane with the opening of the upper sand box, the lower box sleeve is vertically arranged with the side wall of the lower sand box, the upper end face of the lower box sleeve is in the same horizontal plane with the opening of the lower sand box, the upper handle is vertically arranged with the upper box sleeve, the lower handle is vertically arranged with the lower box sleeve, the lower end face of the upper handle is in the same horizontal plane with the lower end face of the upper box sleeve, and the upper end face of the lower handle is in the same horizontal plane with the upper end face of the lower box sleeve. Similar structural designs cannot vibrate the sand box when in use, which easily makes the casting sand filling not dense, so that the finished casting does not meet the standards, and secondly, it is impossible to start installing the connected box body, and at the same time, it is impossible to adjust the tightness between them, so that the sand box will loosen and fall off when in use. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A sand box for casting, comprising a lower box body, a handle one is respectively provided at the front and rear ends of the lower box body, a limiting block is fixedly connected at the four corners of the upper end of the lower box body, an upper box body is provided at the upper end of the lower box body, a handle two is respectively provided at the front and rear ends of the upper box body, the left and right outer walls of the lower box body are fixedly connected with fixed blocks, the inner side of the fixed blocks is movably connected with a connecting plate, a placing rack is provided at the lower end of the lower box body, a base is provided at the lower end of the placing rack, a bottom plate is fixedly connected to the inside of the base, four groups of buffer seats are fixedly connected to the bottom end of the base, and a control panel is fixedly installed on the front end outer wall of the base.

[0006] A further improvement of the technical solution of the utility model is that: a sliding groove is provided on the inner wall of the connecting plate, an adjusting bolt is provided through the left inner part of the connecting plate, and a connecting block 1 is fixedly connected to the left and right ends of the upper box body.

[0007] A further improvement of the technical solution of the utility model is that: the outer side of the adjusting bolt is threadedly sleeved with a movable plate, the right end of the movable plate is fixedly connected to a slider, the upper end of the connecting block one is fixedly connected to a spring one, the upper end of the spring one is fixedly connected to a connecting block two, and the movable plate moves downward and contacts with the connecting block two.

[0008] A further improvement of the technical solution of the utility model is that telescopic push rods are fixedly installed on the inner sides of the front and rear ends of the placement rack, the output end of the telescopic push rod is fixedly connected to a clamping plate, and the outer side of the clamping plate is fixedly connected to a rubber pad.

[0009] A further improvement of the technical solution of the utility model is that a groove is provided on the middle surface of the placement rack, four sets of lifting devices are fixedly installed inside the groove, and a push plate is fixedly connected to the output end of the lifting device.

[0010] A further improvement of the technical solution of the utility model is that the outer diameter of the push plate is matched with the inner diameter of the groove, and the outer diameter of the push plate is matched with the inner diameter of the lower box.

[0011] A further improvement of the technical solution of the utility model is that a vibrator is fixedly installed on the middle upper end of the bottom plate, and an output end of the vibrator is fixedly connected to a support plate.

[0012] A further improvement of the technical solution of the utility model is that four groups of telescopic rods are arranged on the upper end of the base plate, a second spring is arranged on the right side of the telescopic rod, the upper and lower ends of the telescopic rod and the second spring are respectively connected to the base plate and the support plate, and a third spring is sleeved on the outer side of the buffer seat.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides a sand box for casting. Through the joint action of a lower box body, a limit block, an upper box body, a connecting plate, an adjusting bolt and a movable plate, the sand box can be conveniently assembled, fixed and disassembled when in use, and it is convenient to fill and remove castings during the casting process, thereby ensuring the practicality of the sand box.

[0015] 2. The utility model provides a sand box for casting. Through the joint action of a placement frame, a telescopic push rod, a clamping plate, a lifting device and a push plate, the sand box can be clamped and fixed to avoid the sand box moving or tilting during casting, which makes the quality of the finished casting substandard. Secondly, after casting, the parts in the sand box can be pushed out for easy removal, thereby increasing the stability and convenience of the device.

[0016] 3. The utility model provides a sand box for casting. Through the joint action of a base, a vibrator, a telescopic rod, a second spring and a buffer seat, the sand box can be filled with casting sand to fully flow when in use, thereby ensuring the density of the sand box, so that the cast castings meet the standards and increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the casting sand box of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the fixing device of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the clamping device of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the push plate of the utility model;

[0021] Figure 5 It is a schematic structural diagram of the vibration device of the utility model.

[0022] In the figure: 1. lower box; 2. handle 1; 3. limit block; 4. upper box; 5. handle 2; 6. fixed block; 7. connecting plate; 8. slide groove; 9. adjusting bolt; 10. movable plate; 11. slider; 12. connecting block 1; 13. spring 1; 14. connecting block 2; 15. placement rack; 16. telescopic push rod; 17. clamping plate; 18. rubber pad; 19. groove; 20. lifting device; 21. push plate; 22. base; 23. bottom plate; 24. vibrator; 25. telescopic rod; 26. spring 2; 27. support plate; 28. buffer seat; 29. ​​spring 3; 30. control panel. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the implementation modes:

[0024] like Figure 1-5 As shown, the utility model provides a sand box for casting, including a lower box body 1, handles 2 are respectively provided at the front and rear ends of the lower box body 1, and limiting blocks 3 are fixedly connected at the four corners of the upper end of the lower box body 1 to limit the connected sand box, an upper box body 4 is provided at the upper end of the lower box body 1, and handles 5 are respectively provided at the front and rear ends of the upper box body 4, fixed blocks 6 are fixedly connected to the outer walls of the left and right ends of the lower box body 1, and a connecting plate 7 is movably connected to the inner side of the fixed block 6, a placing rack 15 is provided at the lower end of the lower box body 1, and a base 22 is provided at the lower end of the placing rack 15, a bottom plate 23 is fixedly connected to the inside of the base 22, four groups of buffer seats 28 are fixedly connected to the bottom end of the base 22, and a control panel 30 is fixedly installed on the front end outer wall of the base 22.

[0025] like Figure 2 As shown, the utility model provides a technical solution: preferably, the inner wall of the connecting plate 7 is provided with a slide groove 8, and an adjusting bolt 9 is arranged inside the left side of the connecting plate 7. The left and right ends of the upper box body 4 are fixedly connected with a connecting block 12, and the outer side of the adjusting bolt 9 is threadedly sleeved with a movable plate 10, so that the sand box can be combined and fixed and disassembled, and it is convenient to fill and remove the castings during the casting process. The right end of the movable plate 10 is fixedly connected with a slider 11, and the upper end of the connecting block 12 is fixedly connected with a spring 13, and the upper end of the spring 13 is fixedly connected with a connecting block 2 14. The movable plate 10 moves downward and contacts with the connecting block 2 14. By rotating the adjusting bolt 9 arranged in the connecting plate 7, the movable plate 10 is driven to move downward and contact with the connecting block 2 14 arranged on the outer side of the upper box body 4. Since the connecting block 2 14 is arranged on the connecting block 12 by the spring 13, the movable plate 10 moves downward to squeeze the connecting block 2 14, thereby achieving the tightness of fixing the upper box body 4.

[0026] like Figure 3 As shown, the utility model provides a technical solution: preferably, a telescopic push rod 16 is fixedly installed on the inner side of the front and rear ends of the placement rack 15, the output end of the telescopic push rod 16 is fixedly connected to a clamping plate 17, and the outer side of the clamping plate 17 is fixedly connected to a rubber pad 18, which clamps and fixes the sand box to prevent the sand box from moving or tilting during casting.

[0027] A groove 19 is provided on the middle surface of the placement rack 15, and four sets of lifting devices 20 are fixedly installed inside the groove 19. A push plate 21 is fixedly connected to the output end of the lifting device 20. When the casting is completed, the lifting device 20 set at the bottom end is used to drive the push plate 21 to push out the parts inside the sand box. The outer diameter size of the push plate 21 is matched with the inner diameter size of the groove 19, and the outer diameter size of the push plate 21 is matched with the inner diameter size of the lower box body 1. After the casting, the parts in the sand box can be pushed out for easy removal.

[0028] like Figure 4 , Figure 5 As shown, the utility model provides a technical solution: preferably, a vibrator 24 is fixedly installed on the middle upper end of the bottom plate 23, and the output end of the vibrator 24 is fixedly connected to a support plate 27, so that the casting sand inside it can flow fully when filled, ensuring the density of the sand box, and four groups of telescopic rods 25 are arranged on the upper end of the bottom plate 23, and a spring 26 is arranged on the right side of the telescopic rod 25. The upper and lower ends of the telescopic rod 25 and the spring 26 are respectively connected to the bottom plate 23 and the support plate 27, and the outer side of the buffer seat 28 is sleeved with a spring 3 29, which plays a role of auxiliary support to prevent the sand box from tilting due to vibration.

[0029] The following is a detailed description of the working principle of the casting sand box.

[0030] like Figure 1-5 As shown, when this casting sand box is in use, by placing the upper box body 4 on the lower box body 1, since the four corners of the upper end of the lower box body 1 are provided with limit blocks 3, the connected sand box can be limited, and secondly, by rotating the adjusting bolt 9 provided in the connecting plate 7, the movable plate 10 is driven to move downward and contact with the connecting block 2 14 provided on the outer side of the upper box body 4. Since the connecting block 2 14 is provided on the connecting block 12 by the spring 13, the movable plate 10 moves downward to squeeze the connecting block 2 14, thereby achieving the tightness of fixing the upper box body 4 and ensuring the integrity of the sand box. By placing the sand box on the placement rack 15 and using the telescopic push rod 16 to drive the clamping plate 17 to clamp and fix the inner sand box, the movement of the sand box can be effectively avoided and the stability of the device can be increased. Secondly, the bottom end of the placement rack 15 is provided with a groove 19. When the sand box is placed When the placing rack 15 is on the placing rack 15, the push plate 21 in the groove 19 is clamped inside the bottom end of the sand box. When the casting is completed, the lifting device 20 arranged at the bottom end is used to drive the push plate 21 to push out the parts inside the sand box, so as to facilitate the taking of the parts and increase the convenience of the device. The placing rack 15 on the supporting plate 27 is driven to vibrate by the vibrator 24 arranged inside the base 22, so as to fully vibrate the sand box placed inside it, thereby stimulating the casting sand inside the sand box so that it can fully flow and compact when filling. Secondly, telescopic rods 25 and spring two 26 are respectively arranged outside the vibrator 24 to play the role of auxiliary support to prevent the sand box from tilting due to vibration. In addition, by arranging a buffer seat 28 and a spring three 29 at the base 22, the noise generated by the sand box during the vibration process can be reduced, while ensuring the durability and service life of the sand box.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A casting sand box, comprising a lower box body (1), characterized in that: The front and rear ends of the lower box (1) are respectively provided with handles (2); the four corners of the upper end of the lower box (1) are fixedly connected to limit blocks (3); the upper end of the lower box (1) is provided with an upper box (4); the front and rear ends of the upper box (4) are respectively provided with handles (5); the left and right outer walls of the lower box (1) are fixedly connected to fixed blocks (6); the inner side of the fixed block (6) is movably connected to a connecting plate (7); the lower end of the lower box (1) is provided with a placement rack (15); the lower end of the placement rack (15) is provided with a base (22); the interior of the base (22) is fixedly connected to a bottom plate (23); the bottom end of the base (22) is fixedly connected to four groups of buffer seats (28); and the front end outer wall of the base (22) is fixedly installed with a control panel (30).

2. A casting sand box according to claim 1, characterized in that: The inner wall of the connecting plate (7) is provided with a sliding groove (8), the left interior of the connecting plate (7) is penetrated by an adjusting bolt (9), and the left and right ends of the upper box body (4) are fixedly connected with a connecting block 1 (12).

3. A casting sand box according to claim 2, characterized in that: The outer side of the adjusting bolt (9) is threadedly sleeved with a movable plate (10), the right end of the movable plate (10) is fixedly connected to a slider (11), the upper end of the connecting block 1 (12) is fixedly connected to a spring 1 (13), the upper end of the spring 1 (13) is fixedly connected to a connecting block 2 (14), and the movable plate (10) moves downward and contacts the connecting block 2 (14).

4. A casting sand box according to claim 1, characterized in that: A telescopic push rod (16) is fixedly installed on the inner sides of the front and rear ends of the placement rack (15), the output end of the telescopic push rod (16) is fixedly connected to a clamping plate (17), and the outer side of the clamping plate (17) is fixedly connected to a rubber pad (18).

5. A casting sand box according to claim 1, characterized in that: A groove (19) is provided on the middle surface of the placement rack (15), and four sets of lifting devices (20) are fixedly installed inside the groove (19), and a push plate (21) is fixedly connected to the output end of the lifting device (20).

6. A casting sand box according to claim 5, characterized in that: The outer diameter of the push plate (21) matches the inner diameter of the groove (19), and the outer diameter of the push plate (21) matches the inner diameter of the lower box (1).

7. A casting sand box according to claim 1, characterized in that: A vibrator (24) is fixedly mounted on the middle upper end of the bottom plate (23), and an output end of the vibrator (24) is fixedly connected to a support plate (27).

8. A casting sand box according to claim 7, characterized in that: Four groups of telescopic rods (25) are arranged at the upper end of the bottom plate (23), and spring 2 (26) is arranged on the right side of the telescopic rod (25). The upper and lower ends of the telescopic rod (25) and spring 2 (26) are respectively connected to the bottom plate (23) and the support plate (27), and the outer side of the buffer seat (28) is sleeved with spring 3 (29).

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