Sand casting device for film-coated casting sandbox

Abstract

The utility model relates to the technical field of sand casting equipment, in particular to a sand casting device for a film coating casting sandbox, which comprises a sandbox, an operation platform and a box turning mechanism, the sandbox is a cuboid with an opening at the top, and the two sides of the sandbox are provided with forward protruding pinch bars; the operation platform comprises a base with a sliding rail and a bearing platform, the bearing platform moves along the base through rollers at the bottom, and the base is provided with an oil cylinder I for driving the bearing platform to move; the box overturning mechanism comprises overturning seats arranged on the two sides of the sand box, each overturning seat is provided with an overturning frame and a second oil cylinder for driving the overturning frame to overturn, and the overturning frame is fixedly provided with a combining rod capable of being combined with the pinch bar in a sleeving mode. The sand box can be automatically turned over by more than 90 degrees, and castings and sand in the sand box can be safely and efficiently poured out.

Description

Technical Field

[0001] The utility model relates to the technical field of sand-turning equipment, in particular to a sand-turning device used for a film-coated casting sand box. Background Art

[0002] In coated sand casting, after casting is completed, the box needs to be turned over to pour out the castings and casting sand in the sand box. Because the sand box is too heavy and needs to be turned over more than 90°, a special box turning device is required to improve the efficiency of turning the box and prevent safety accidents. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a sand turning device for a coated casting sand box. The utility model adopts a specially designed sand turning device, which can turn the sand box over more than 90° to facilitate the falling of castings and casting sand. The entire process adopts mechanical semi-automatic production, which is safe and efficient.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a sand turning device for a film casting sand box, comprising a sand box, an operating platform and a box turning mechanism, the sand box is a rectangular parallelepiped with an opening at the top, and protruding pry bars are arranged on both sides of the sand box; the operating platform comprises a base with a slide rail and a bearing platform, the bearing platform moves along the base through rollers at the bottom, and the base is provided with a cylinder 1 for driving the bearing platform to move; the box turning mechanism comprises a turning seat arranged on both sides of the sand box, the turning seat is provided with a turning frame and a cylinder 2 for driving the turning frame to turn, and the turning frame is fixed with a closing rod that can fit the pry bar.

[0005] Preferably, the bottom of the sandbox is provided with an insertion hole for facilitating forklift operation.

[0006] Preferably, the pry bars are arranged at middle positions on both sides of the sand box.

[0007] Preferably, centering plates are arranged around the bearing platform to facilitate the sandbox to be placed in the middle of the bearing platform, and the centering plates are vertical plates that are chamfered toward one side of the center of the bearing platform.

[0008] Preferably, a cross bar is provided between the flip frames on both sides, and when the carrying platform reaches the farthest position, the distance between the sand box and the cross bar is smaller than the margin of the protruding part of the pry bar that is not inserted into the closing rod.

[0009] Preferably, the turning angle of the turning frame is 0° to 135°.

[0010] The beneficial effects of the utility model are as follows: a sand turning device for a film casting sandbox, comprising a sandbox, a running platform and a box turning mechanism, wherein the sandbox is a rectangular parallelepiped with an opening at the top, and protruding pry bars are arranged on both sides of the sandbox; the running platform comprises a base with a slide rail and a bearing platform, the bearing platform moves along the base through rollers at the bottom, and the base is provided with a first oil cylinder driving the bearing platform to move; the box turning mechanism comprises a turning seat arranged on both sides of the sandbox, the turning seat is provided with a turning frame and a second oil cylinder driving the turning frame to turn, and the turning frame is fixed with a closing rod that can fit the pry bar. The utility model can automatically turn the sandbox over more than 90°, and safely and efficiently pour out the castings and sand in the sandbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a stereoscopic diagram of a sand turning device for a film casting sand box according to the utility model.

[0012] Description of reference numerals:

[0013] 1——sand box, 11——pry bar, 2——operating platform, 21——base, 22——bearing platform, 23——oil cylinder 1, 24——centering plate, 3——box turning mechanism, 31——turning seat, 32——turning frame, 33——oil cylinder 2, 34——closing rod, 35——cross bar. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0015] like Figure 1 As shown, a sand turning device for a film casting sand box in this embodiment includes a sand box 1, an operating platform 2 and a box turning mechanism 3, wherein the sand box 1 is a rectangular parallelepiped with an opening at the top, and protruding pry bars 11 are arranged on both sides of the sand box 1; the operating platform 2 includes a base 21 with a slide rail and a bearing platform 22, and the bearing platform 22 moves along the base 21 through rollers at the bottom, and the base 21 is provided with a cylinder 23 for driving the bearing platform 22 to move; the box turning mechanism 3 includes a turning seat 31 arranged on both sides of the sand box 1, the turning seat 31 is provided with a turning frame 32 and a cylinder 2 33 for driving the turning frame 32 to turn, and the turning frame 32 is fixed with a closing rod 34 that can fit the pry bar 11.

[0016] During operation, the sandbox 1 is first forked to the carrying platform 22 by a forklift. In order to facilitate the accurate placement of the sandbox 1 in the middle of the carrying platform 22, a centering plate 24 is provided around the carrying platform 22. The centering plate 24 is a vertical plate welded to the edges around the carrying platform 22, and the centering plate 24 is chamfered toward one side of the center of the carrying platform 22. Then, the oil cylinder 1 23 is used to push the carrying platform 22 to move, so that the sandbox 1 approaches the flip frame 32. During the approaching process, the protruding part of the pry bar 11 is inserted into the closing rod 34. In the third step, the oil cylinder 2 33 drives the flip frame 32 to flip. Because the pry bar 11 and the closing rod 34 are fitted together, the sandbox 1 flips together with the flip frame 32. In order to reduce the force on the pry bar 11 and the closing rod 34, a cross bar 35 is provided between the flip frames 32 on both sides. When the carrying platform 22 reaches the farthest position, the distance between the sandbox 1 and the cross bar 35 is less than the margin of the protruding part of the pry bar 11 that is not inserted into the closing rod 34, so that the flipped and tilted sandbox 1 slides along the closing rod 34 and the front end contacts the cross bar 35. In the fourth step, in order to quickly and completely pour out the castings and casting sand in the sandbox 1, the flip angle of the flip frame 32 is greater than 90°, and in this embodiment it is 135°. In the fifth step, after the materials are poured out, the empty sandbox falls back to the carrying platform 22 with the flip frame 32, and the oil cylinder 1 23 is pulled back to put the sandbox 1 in a position convenient for forklifts to pick up. The overturning, unloading and returning process of the sandbox 1 after it is placed on the carrying platform 22 is completed in sequence by two oil cylinders, which is safe and efficient.

[0017] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, and for the convenience of describing the technical solution, the front, rear, left, right, top, middle, and bottom directions adopted are based on the settings in the accompanying drawings, rather than limiting the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A sand turning device for a film casting sand box, characterized in that: It includes a sandbox, an operating platform and a box-turning mechanism. The sandbox is a rectangular parallelepiped with an opening on the top. Both sides of the sandbox are provided with protruding pry bars. The operating platform includes a base with slide rails and a bearing platform. The bearing platform moves along the base through rollers at the bottom. The base is provided with a cylinder 1 for driving the bearing platform to move. The box-turning mechanism includes a turning seat arranged on both sides of the sandbox. The turning seat is provided with a turning frame and a cylinder 2 for driving the turning frame to turn. The turning frame is fixed with a closing rod that can fit the pry bar.

2. The sand turning device for a film casting sand box according to claim 1, characterized in that: The bottom of the sandbox is provided with an insertion hole for facilitating forklift operation.

3. The sand turning device for a film casting sand box according to claim 1, characterized in that: The pry bars are arranged at middle positions on both sides of the sand box.

4. The sand turning device for a film casting sand box according to claim 1, characterized in that: Centering plates are arranged around the bearing platform to facilitate the sandbox to be placed in the middle of the bearing platform. The centering plates are vertical plates with an angled angle toward one side of the center of the bearing platform.

5. The sand turning device for a film casting sand box according to claim 1, characterized in that: A cross bar is arranged between the flip frames on both sides. When the carrying platform reaches the farthest position, the distance between the sand box and the cross bar is smaller than the margin of the protruding part of the pry bar that is not inserted into the closing rod.

6. The sand turning device for a film casting sand box according to claim 1, characterized in that: The turning angle of the turning frame is 0° to 135°.

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