Demoulding device for furan resin sand casting

Abstract

The utility model discloses a demoulding device for furan resin sand casting, which comprises a demoulding table, an overturning table is arranged above the demoulding table, a sand box is arranged at the top of the overturning table, limiting components are arranged at the front end and the rear end of each of two sides of the overturning table, an overturning component is arranged at the top of the demoulding table, and the sand box is arranged in the overturning component. The overturning assembly comprises supporting bases fixedly connected to the two sides of the top of the demolding table through bolts, a rotating column is rotationally connected between the two supporting bases through bearings, two connecting bases are fixedly connected to the surface of the rotating column, and the tops of the connecting bases are fixedly connected with the overturning table through bolts. Through the arrangement of the limiting assembly, the sand box is stably fixed to the top of the overturning table, then through the arrangement of the overturning assembly, the overturning table and the sand box are driven to overturn together, and a sand body and a workpiece are poured into an inner cavity of the material guiding box together for demolding; therefore, the purposes of automatic clamping and fixing and labor-saving, convenient and efficient demolding can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of furan resin sand casting, in particular to a demoulding device for furan resin sand casting. Background Art

[0002] Furan resin sand is a brown-red or amber viscous liquid, slightly soluble in water, and easily soluble in organic solvents such as esters and ketones. It is an ideal sand (mold) core binder for the foundry industry. It is characterized by good sand (mold) core precision, high strength, low odor, anti-hygroscopicity, good disintegration properties, and sand recyclability. The condensation product obtained by homopolymerization of furfural or furfuryl alcohol itself or co-condensation with other monomers is customarily called furan resin.

[0003] Using furan resin sand as a sand mold adhesive can improve the accuracy and strength of the sand mold. After casting is completed, the cast workpiece is stored in a sand box together with the sand body. Due to its heavy weight, it is more laborious and inconvenient to demold. Therefore, it is necessary to provide a demolding device for furan resin sand casting, which adopts a flipping and dumping method to automatically pour out the sand body together with the workpiece. The demolding process is simple and quick, which improves the demolding efficiency and saves time and energy. Utility Model Content

[0004] The utility model aims to provide a demoulding device for furan resin sand casting, which adopts a flipping and dumping method to automatically pour out the sand body together with the workpiece, and the demoulding process is simple and rapid, thereby improving the demoulding efficiency, saving time and energy investment, so as to solve the above technical problems.

[0005] The utility model provides a technical solution to the above technical problems as follows: a demolding device for furan resin sand casting, comprising a demolding table: a turning table is arranged above the demolding table, a sand box is placed on the top of the turning table, limiting components are arranged at the front end and the rear end of both sides of the turning table, a turning component is arranged on the top of the demolding table, the turning component comprises a supporting seat fixedly connected to both sides of the top of the demolding table by bolts, a rotating column is rotatably connected between the two supporting seats by bearings, two connecting seats are fixedly connected to the surface of the rotating column, the top of the connecting seat is fixedly connected to the turning table by bolts, cylinders are fixedly installed on both sides of the top of the demolding table, racks are fixedly connected to the output ends of the cylinders, gears are fixedly connected to both sides of the surface of the rotating column, and the gears are meshed with the racks.

[0006] Preferably, the limiting assembly includes a connecting bracket fixedly connected to the side of the turning table by bolts, an electric telescopic rod is fixedly installed on the bottom of the connecting bracket, and a pressure plate is rotatably connected to one side of the top of the connecting bracket, and the end of the pressure plate away from the connecting bracket is pressed against the surface of the sand box.

[0007] Preferably, an arc-shaped slot is provided on one side of the top of the pressure plate, the inner cavity of the arc-shaped slot is rotatably connected to a connecting plate, and the bottom end of the connecting plate is rotatably connected to the output end of the electric telescopic rod.

[0008] Preferably, both sides of the top of the demoulding platform are fixedly connected to limiting guide rails, and the rack is slidably connected to the inner cavity of the limiting guide rails.

[0009] Preferably, a baffle is fixedly connected to the front side of the top of the turning table, and the rear side of the baffle is tightly fitted to the front side of the sand box.

[0010] Preferably, the inner cavity of the demoulding table is fixedly connected with a material guide box, and the material guide box is located directly below the turning table.

[0011] 1. The beneficial effect of the utility model is that the utility model can stably fix the sand box on the top of the turning table through the setting of the limit component, and then drive the turning table and the sand box to turn over together through the setting of the turning component, so that the sand body and the workpiece are dumped into the inner cavity of the guide box for demoulding, thereby achieving the purpose of automatic clamping and demoulding, saving effort, convenience and efficiency.

[0012] 2. The utility model sets a limit assembly, in which the electric telescopic rod and the connecting plate are used in coordination, which pushes and pulls the pressure plate, so that the pressure plate can rotate about the rotation center of the connection position between it and the connecting bracket. At the same time, with the coordinated use of the pressure plate, the bottom edge of the sand box is pressed down and clamped, so that the sand box can be stably installed on the top of the turning table.

[0013] 3. The utility model has the function of limiting and guiding the rack by setting the limiting guide rail, so that the rack can maintain stable horizontal sliding, thereby improving the meshing stability between the rack and the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] in:

[0015] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of a turning platform, a limiting assembly and a turning assembly in one embodiment of the utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of a position limiting assembly according to an embodiment of the utility model;

[0018] Figure 4 The figure is a three-dimensional schematic diagram of a turning platform and a turning assembly according to an embodiment of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Demolding table, 2. Turning table, 3. Sand box, 4. Limiting assembly, 41. Connecting bracket, 42. Electric telescopic rod, 43. Pressing plate, 44. Arc slot, 45. Connecting plate, 5. Turning assembly, 51. Support seat, 52. Rotating column, 53. Connecting seat, 54. Cylinder, 55. Rack, 56. Gear, 6. Limiting guide rail, 7. Baffle bar, 8. Material guide box. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the demoulding device for furan resin sand casting of the present invention will be described with reference to the accompanying drawings.

[0022] Figure 1-4 The demoulding device for furan resin sand casting of an embodiment of the utility model is shown, comprising a demoulding table 1: a turning table 2 is arranged above the demoulding table 1, a material guide box 8 is fixedly connected to the inner cavity of the demoulding table 1, the material guide box 8 is located directly below the turning table 2, a sand box 3 is placed on the top of the turning table 2, a baffle 7 is fixedly connected to the front side of the top of the turning table 2, the rear side of the baffle 7 is tightly fitted with the front side of the sand box 3, and a limit assembly 4 is arranged at the front and rear ends of both sides of the turning table 2, and the limit assembly 4 includes a connecting bracket 41 fixedly connected to the side of the turning table 2 by bolts, and a connecting bracket 41 is fixedly connected to the side of the turning table 2 by bolts. An electric telescopic rod 42 is fixedly installed at the bottom of the connecting bracket 41, and a pressure plate 43 is rotatably connected to one side of the top of the connecting bracket 41. One end of the pressure plate 43 away from the connecting bracket 41 is pressed on the surface of the sand box 3, and an arc-shaped slot 44 is opened on one side of the top of the pressure plate 43. The inner cavity of the arc-shaped slot 44 is rotatably connected to a connecting plate 45. The bottom end of the connecting plate 45 is rotatably connected to the output end of the electric telescopic rod 42. Through the setting of the limit assembly 4, the electric telescopic rod 42 and the connecting plate 45 are used in combination to push and pull the pressure plate 43, so that the pressure plate 43 can be The center of rotation of the connection position between the stripping table 1 and the connecting bracket 41 rotates, and the bottom edge of the sand box 3 is pressed down and clamped with the cooperation of the pressure plate 43, so that the sand box 3 can be stably installed on the top of the flip table 2. The top of the demoulding table 1 is provided with a flip assembly 5, which includes a support seat 51 fixedly connected to both sides of the top of the stripping table 1 by bolts, and a rotating column 52 is rotatably connected between the two support seats 51 through a bearing, and the surface of the rotating column 52 is fixedly connected with two connecting seats 53, and the top of the connecting seat 53 is connected to the flip table by bolts. 2 is fixedly connected, cylinders 54 are fixedly installed on both sides of the top of the demoulding platform 1, and the output end of the cylinder 54 is fixedly connected to a rack 55, and gears 56 are fixedly connected on both sides of the surface of the rotating column 52. The gear 56 and the rack 55 are meshed. The top of the demoulding platform 1 is fixedly connected to the limiting guide rail 6 on both sides, and the rack 55 is slidably connected to the inner cavity of the limiting guide rail 6. Through the setting of the limiting guide rail 6, the rack 55 is limited and guided, so that the rack 55 can maintain stable horizontal sliding, thereby improving the meshing stability of the rack 55 and the gear 56.

[0023] Working principle: When the utility model is used, the user lifts the sand box 3 to the top of the turning table 2 through the lifting equipment, and then removes the upper cover on the top of the sand box 3. At this time, the electric telescopic rod 42 opens and pulls the connecting plate 45 downward, and the connecting plate 45 pulls the pressing plate 43 obliquely downward, so that the pressing plate 43 rotates with its connection position with the connecting bracket 41 as the rotation center, so that the end of the pressing plate 43 away from the connecting bracket 41 is pressed on the bottom edge of the sand box 3, thereby pressing and fixing the sand box 3, and then the cylinder 54 opens. When the rack 55 is started, the cylinder 54 pushes the rack 55, causing the rack 55 to slide in the inner cavity of the limiting guide rail 6. Due to the meshing action of the rack 55 and the gear 56, the gear 56 rotates during the sliding process of the rack 55, thereby driving the rotating column 52 to rotate. During the rotation process, the rotating column 52 drives the turning table 2 to rotate through the two connecting seats 53, so that the sand box 3 located on the top of the turning table 2 rotates toward the front side and dumps the sand body and workpiece in its inner cavity, thereby achieving demolding.

[0024] In summary: the demolding device for furan resin sand casting, through the setting of the limit component 4, makes the sand box 3 stably fixed on the top of the turning table 2, and then through the setting of the turning component 5, drives the turning table 2 together with the sand box 3 to turn over, so that the sand body together with the workpiece is dumped into the inner cavity of the guide box 8 for demolding, thereby achieving the purpose of automatic clamping and demolding that is labor-saving, convenient and efficient.

Claims

1. A demoulding device for furan resin sand casting, characterized in that: The invention comprises a demoulding table (1): a turnover table (2) is arranged above the demoulding table (1), a sand box (3) is placed on the top of the turnover table (2), a limit assembly (4) is arranged at the front end and the rear end of both sides of the turnover table (2), a turnover assembly (5) is arranged at the top of the demoulding table (1), the turnover assembly (5) comprises a support seat (51) fixedly connected to both sides of the top of the demoulding table (1) by bolts, a rotating column (52) is rotatably connected between the two support seats (51) by bearings, two connecting seats (53) are fixedly connected to the surface of the rotating column (52), the top of the connecting seat (53) is fixedly connected to the turnover table (2) by bolts, cylinders (54) are fixedly installed on both sides of the top of the demoulding table (1), the output end of the cylinder (54) is fixedly connected to a rack (55), and gears (56) are fixedly connected to both sides of the surface of the rotating column (52), and the gears (56) and the racks (55) are meshed.

2. A demoulding device for furan resin sand casting according to claim 1, characterized in that: The limiting assembly (4) comprises a connecting bracket (41) fixedly connected to the side of the turning table (2) by bolts, an electric telescopic rod (42) is fixedly installed at the bottom of the connecting bracket (41), and a pressing plate (43) is rotatably connected to one side of the top of the connecting bracket (41), and one end of the pressing plate (43) away from the connecting bracket (41) is pressed against the surface of the sand box (3).

3. A demoulding device for furan resin sand casting according to claim 2, characterized in that: An arc-shaped slot (44) is provided on one side of the top of the pressing plate (43), and a connecting plate (45) is rotatably connected to the inner cavity of the arc-shaped slot (44), and the bottom end of the connecting plate (45) is rotatably connected to the output end of the electric telescopic rod (42).

4. A demoulding device for furan resin sand casting according to claim 3, characterized in that: Both sides of the top of the demoulding platform (1) are fixedly connected to the limiting guide rails (6), and the rack (55) is slidably connected to the inner cavity of the limiting guide rails (6).

5. A demoulding device for furan resin sand casting according to claim 4, characterized in that: A baffle (7) is fixedly connected to the front side of the top of the turning table (2), and the rear side of the baffle (7) is tightly fitted to the front side of the sand box (3).

6. A demoulding device for furan resin sand casting according to claim 5, characterized in that: The inner cavity of the demoulding platform (1) is fixedly connected to a material guide box (8), and the material guide box (8) is located directly below the turning platform (2).

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