Sand box for metal casting

Abstract

The utility model discloses a sand box for metal casting, which comprises a sand box, a support is arranged on the sand box, the support is rotatably connected with a handle through a connecting shaft, the handle is rotatably connected with two groups of rollers through a connecting shaft, two groups of spring telescopic rods are fixedly connected on the support, and one ends of the two groups of spring telescopic rods are fixedly connected with a first plate body. The handle is used for driving the rolling wheel to rotate, the rolling wheel can drive the first plate body and the two sets of second plate bodies to press downwards towards the interior of the sand box, stone sand in the sand box can be flattened and evenly distributed, use is convenient and rapid, meanwhile, the first handle is used for driving the double-thread screw to rotate, and the sand box is convenient to use. The two sets of rod bodies pull the sliding groove rod and the second plate body to rotate, the second plate body can rotate upwards, the same horizontal placement operation of the first plate body is omitted, the interior of the sand box can be rapidly exposed so that stone sand can be added, the operation can be completed only by driving the double-thread screw, the operation steps needed by adding are simple, and use is relatively convenient.

Description

Technical Field

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

[0002] The sand box is one of the processing tools used for metal casting. There is currently a casting sand box for metal casting (application number: 202320961767.5) which has the advantage of convenient and uniform pushing of stone sand, which solves the problem that the existing sand box needs to flatten the stone sand when filling it with stone sand, and evenly distributes the stone sand inside to avoid damage to the casting mold. Since small blocks are used for pushing, the pushing force is different each time, so the stone sand inside may be unevenly distributed, and the existing sand box is not convenient for users to push the stone sand.

[0003] The above-mentioned problem is that when it is necessary to add stone sand into the sand box, the transmission block needs to be moved out from the limit groove, and then the limit block is moved to the inside of the rotating groove, and the cover plate is rotated around the limit block before the cover plate can be opened to add stone sand. The addition requires many operation steps, and after adding, the cover body needs to be reinstalled before it can be used, which is relatively inconvenient to use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a sand box for metal casting.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sand box for metal casting comprises a sand box, wherein a bracket is provided on the sand box, the bracket is rotatably connected to a handle via a connecting shaft, the handle is rotatably connected to two groups of rollers via a connecting shaft, two groups of spring telescopic rods are fixedly connected to the bracket, one end of the two groups of spring telescopic rods is fixedly connected to a first plate body, the two groups of rollers are fitted with the first plate body, the first plate body is rotatably connected to two groups of second plate bodies via a connecting shaft, the two groups of second plate bodies and the first plate body are fitted with each other, the first plate body is rotatably connected to a double-headed screw via a bearing, two groups of rod bodies are threadedly connected on the double-headed screw, the two groups of rod bodies are slidably connected to a slide groove rod, and the two groups of slide groove rods are respectively fixedly connected to the two groups of the second plate bodies.

[0007] Preferably, one end and the other end of the sand box are fixed with a sleeve, two groups of the sleeve are slidably connected to one end and the other end of the bracket, two groups of the sleeve are threadedly connected with bolts, and two groups of the bolts are threadedly connected to the bracket.

[0008] Preferably, a first handle is fixedly connected to the double-headed screw.

[0009] Preferably, a sliding rod is fixedly connected to the first plate body, and the sliding rod is slidably connected to the two groups of rod bodies.

[0010] Preferably, two groups of the second plate bodies and the first plate bodies are clearance-matched with the interior of the sand box.

[0011] Preferably, one end of the two groups of the second plates are both designed to be arc-shaped.

[0012] Preferably, the two groups of bolts are both fixedly connected with a second handle.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the cooperation among the provided bracket, handle, roller, spring telescopic rod, first plate, second plate, double-headed screw, rod and slide rod, the handle is used to drive the roller to rotate, and the roller can drive the first plate and two sets of second plates to press down into the sand box, so that the stone sand in the sand box can be flattened and evenly distributed. While being convenient and quick to use, the first handle is used to drive the rotation of the double-headed screw, and the two sets of rods are pulled into the slide rod and the second plate to rotate, so that the second plate can be rotated upward, and the operation of placing it at the same level as the first plate is cancelled, so that the inside of the sand box can be quickly exposed for adding stone sand. The operation can be completed by only driving the double-headed screw, and the operation steps required for adding are simple, and the use is relatively convenient;

[0015] 2. Through the coordination between the sleeve, bolts and bracket, the bracket is connected to the sleeve by sliding, and the bracket and the sleeve are fixed or unfixed by bolts, most components can be quickly separated from the sand box, which is relatively convenient for disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a sand box for metal casting proposed by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the middle sleeve, the bolt and the second handle;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the middle, the handle and the spring telescopic rod;

[0019] Figure 4 for Figure 1 A schematic diagram of the structure of the middle sand box, the first plate body and the second plate body;

[0020] Figure 5 for Figure 1 Schematic diagram of the structure of the middle rod body and the slide rod.

[0021] In the figure: 1. sand box; 2. bracket; 3. handle; 4. roller; 5. spring telescopic rod; 6. first plate body; 7. second plate body; 8. double-headed screw; 9. rod body; 10. slide rod; 11. sleeve body; 12. bolt; 13. slide rod; 14. first handle; 15. second handle. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1, reference Figures 1 to 5 A metal casting sand box comprises a sand box 1, and the sand box 1 is provided with a bracket 2. The bracket 2 is connected to a handle 3 by rotating a connecting shaft. The handle 3 can be rotated at the bracket 2. The handle 3 is connected to two groups of rollers 4 by rotating a connecting shaft. The handle 3 can drive the two groups of rollers 4 to rotate synchronously. Two groups of spring telescopic rods 5 are fixedly connected to the bracket 2. The spring telescopic rods 5 give the first plate body 6 a force to reset after being pressed down. One end of the two groups of spring telescopic rods 5 is fixedly connected to the first plate body 6. The two groups of rollers 4 are in contact with the first plate body 6. When the handle 3 drives the two groups of rollers 4 to rotate at the bracket 2, the two groups of rollers 4 can push the first plate body 6 and the two groups of second plate bodies 7 to press downward in the sand box 1, and then the sand and gravel in the sand box 1 can be pressed down by the first plate body 6 and the two groups of second plate bodies 7, and the sand and gravel in the sand box 1 can be evenly flattened. The first plate body 6 is connected Two groups of second plate bodies 7 are connected to each other by shaft rotation, and the two groups of second plate bodies 7 and the first plate body 6 are fitted with each other. The first plate body 6 is connected to the double-headed screw 8 by bearing rotation. The double-headed screw 8 can drive the two groups of rod bodies 9 to move outward twice or move inward together respectively. Two groups of rod bodies 9 are threadedly connected to the double-headed screw 8, and the two groups of rod bodies 9 are slidably connected with the slide rod 10. The rod body 9 can drive the corresponding slide rod 10 and the second plate body 7 to rotate downward or upward, and the two groups of slide rods 10 are respectively fixedly connected to the two groups of second plate bodies 7. By utilizing the double-headed screw 8 to rotate on the first plate body 6, the double-headed screw 8 can drive the two groups of rod bodies 9 to move inward synchronously, and then the two groups of second plate bodies 7 can be quickly rotated upward, so that the two groups of second plate bodies 7 can cancel the placement on the same horizontal line as the first plate body 6, and the inside of the sand box 1 can be quickly exposed for the addition of stone sand.

[0024] In this embodiment, the sand box 1 is fixedly connected to a sleeve 11 at one end and the other end, and the two sets of sleeves 11 are slidably connected to the bracket 2 at one end and the other end. The two sets of sleeves 11 are threadedly connected to bolts 12, and the two sets of bolts 12 are threadedly connected to the bracket 2. The bolts 12 are threadedly connected to the bracket 2 or the threaded connection is canceled, so that the bracket 2 can quickly drive the first plate 6 and the two sets of second plate 7 to be separated from the sand box 1 for easy maintenance. The double-headed screw 8 is fixedly connected to a first handle 14, and the first handle 14 can drive the double-headed screw 8 to rotate. The first plate 6 is fixedly connected to The slide bar 13 is slidably connected to the two groups of rod bodies 9. The two groups of second plate bodies 7 and the first plate body 6 are matched with the internal clearance of the sand box 1. The first plate body 6 can drive the two groups of second plate bodies 7 to move up and down in the sand box 1, so as to evenly flatten and compact the stone sand in the sand box 1. One end of the two groups of second plate bodies 7 is designed in an arc shape, so that when the second plate body 7 rotates, the second plate body 7 moves up one end and can be smoothly moved out of the sand box 1. The two groups of bolts 12 are fixed with second handles 15, and the second handles 15 can drive the corresponding bolts 12 to rotate.

[0025] The working principle of this embodiment is as follows: when in use, the first handle 14 drives the double-headed screw 8 to rotate, and the double-headed screw 8 can make the two groups of rod bodies 9 slide close to each other at the slide rod 13, and then use the two groups of rod bodies 9 to be connected with the corresponding sliding groove rods 10, so as to drive the two groups of second plates 7 to rotate upward synchronously with the connection point with the first plate body 6 as the center of the circle, thereby canceling the placement on the same horizontal line with the first plate body 6, and quickly exposing the inside of the sand box 1. After exposure, stone sand can be added to the sand box 1 and placed. After placement, the double-headed screw 8 is used again to drive the two groups of rod bodies 9 to move outward on both sides respectively, and the two groups of second plates 7 can be moved downward again The two sets of rollers 4 can be driven to rotate and be placed on the same horizontal line with the first plate body 6 after adjustment. The two sets of rollers 4 can drive the first plate body 6 and the two sets of second plate bodies 7 to be pressed down in the sand box 1, so that the stone sand in the sand box 1 can be evenly flattened. After the flattening operation is completed, the sand box 1 can be used for casting related work. The second handle 15 can also be used to drive the bolt 12 to rotate, and the bolt 12 can be cancelled from being connected to the thread of the bracket 2. The bracket 2 can cancel the fit with the sleeve 11, and can drive the first plate body 6 and the two sets of second plate bodies 7 to be separated from the sand box 1. The disassembly and assembly are fast, and the maintenance is relatively convenient.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal casting sand box, comprising a sand box (1), characterized in that: The sand box (1) is provided with a bracket (2), the bracket (2) is rotatably connected to a handle (3) via a connecting shaft, the handle (3) is rotatably connected to two groups of rollers (4) via a connecting shaft, the bracket (2) is fixedly connected to two groups of spring telescopic rods (5), one end of the two groups of spring telescopic rods (5) is fixedly connected to a first plate body (6), the two groups of rollers (4) are fitted with the first plate body (6), the first plate body (6) is rotatably connected to two groups of second plate bodies (7) via a connecting shaft, the two groups of second plate bodies (7) and the first plate body (6) are fitted with each other, the first plate body (6) is rotatably connected to a double-headed screw (8) via a bearing, the double-headed screw (8) is threadedly connected to two groups of rod bodies (9), the two groups of rod bodies (9) are slidably connected to a slide groove rod (10), and the two groups of slide groove rods (10) are respectively fixedly connected to the two groups of the second plate bodies (7).

2. A metal casting sand box according to claim 1, characterized in that: The sand box (1) is fixedly connected with a sleeve (11) at one end and the other end, and two groups of the sleeves (11) are slidably connected with one end and the other end of the bracket (2). The two groups of the sleeves (11) are threadedly connected with bolts (12), and the two groups of the bolts (12) are threadedly connected with the bracket (2).

3. A metal casting sand box according to claim 1, characterized in that: A first handle (14) is fixedly connected to the double-headed screw (8).

4. A metal casting sand box according to claim 1, characterized in that: A sliding rod (13) is fixedly connected to the first plate body (6), and the sliding rod (13) is slidably connected to the two groups of rod bodies (9).

5. A metal casting sand box according to claim 1, characterized in that: The two groups of the second plate bodies (7) and the first plate bodies (6) are clearance-matched with the interior of the sand box (1).

6. A metal casting sand box according to claim 1, characterized in that: One end of the two groups of the second plates (7) are both designed to be arc-shaped.

7. A metal casting sand box according to claim 2, characterized in that: The two groups of bolts (12) are both fixedly connected with a second handle (15).

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