Sand box tipping spreader

Abstract

The utility model relates to foundry equipment technical field, concretely is a sand box turnover lifting appliance. The lifting appliance includes the lifting appliance main part of U shape structure, is provided with the inner cavity in the body for accommodating the sand box, is provided with the backplate in the back; Two are symmetrically installed for driving the rotation axis of overturning in the lifting appliance inside below, and the rotation axis rear side is connected with the turntable for driving the sand box overturning, is provided with the adjustable steel ball mechanism on the backplate, replaces the traditional sliding contact surface through the steel ball, realizes the rolling friction to reduce the abrasion, the steel ball is installed in the second fixed cylinder that sets up on the moving disc, and the second fixed cylinder is worn in the first fixed cylinder on the backplate, and the moving disc is driven through the rotating screw rod, realizes the adjustment of steel ball extension amount, is provided with the extruding bolt in the second fixed cylinder for limiting or replacing the steel ball. The device structure is reasonable, and the overturning stability is good, can effectively reduce the friction, reduce the backplate abrasion, has good adjustability and maintenance convenience.

Claims

1. A sand box tilting lifting device, comprising a lifting device body (1), characterized in that: The lifting device body (1) has a U-shaped structure and an inner cavity (11) is provided inside. The back of the lifting device body (1) is provided with a back plate (12). The lifting device body (1) has a symmetrical rotating shaft (2) installed inside the lower part. A turntable (21) is provided on the rear side of the surface of the rotating shaft (2). The sand box is flipped by rotating the two turntables (21). The back plate (12) is rotatably mounted with a threaded rod (3), and the back of the rotating shaft (2) is evenly provided with four first fixed cylinders (121) with the rotating shaft of the threaded rod (3) as the center. The interior of the first fixed cylinder (121) is a through hole structure. The threaded rod (3) has a movable disc (4) screwed onto its surface. Four second fixed cylinders (42) are evenly arranged on one side of the movable disc (4). The second fixed cylinders (42) penetrate the first fixed cylinder (121). Steel balls (5) are installed at the ends of the second fixed cylinders (42).

2. A sand box tipping spreader according to claim 1, characterised in that: The movable disk (4) has a through internal threaded hole (41) in the center, which is adapted to the threaded rod (3), and a knob is provided at the end of the threaded rod (3).

3. A sand box tipping spreader according to claim 1 wherein: The second fixing cylinder (42) is hollow inside, and a spherical hole (421) is provided at the end of the second fixing cylinder (42), and the steel ball (5) is placed in the spherical hole (421).

4. A flask tipping spreader according to claim 3, characterised in that: The steel ball (5) extends beyond the end face of the second fixed cylinder (42) and is flush with the front surface of the back plate (12).

5. A flask tipping spreader according to claim 4, characterised in that: Inside the second fixed cylinder (42), there is a pressing bolt (6) that is screwed from back to front, and the pressing bolt (6) presses and limits the steel ball (5).

6. A sand mold inversion hanger according to claim 1 wherein: The lifting device body (1) is symmetrically provided with fixed ear plates (13) at both ends, and a rotating rod (14) is rotatably installed between the two fixed ear plates (13).

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