JPH0634042Y2 - Sand removal equipment for casting products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a device for impacting a cast product after casting to separate and remove sand adhering to the product.

(Prior Art) In order to separate and remove the sand adhering to the casting product after casting,
After the knockout hammer is moved up and down by driving the air cylinder to bring the tip of the hammer into contact with the product,
A device is known in which the hammer is pneumatically driven to continuously hit the product by vertical vibration of the chisel at the tip (for example, Japanese Utility Model Publication No. 54-36094).

(Problems to be solved by the invention) By the way, in the above device, since the product to be processed only vibrates vertically when hit, most of the adhered sand on the top surface of the product remains on the product even after being separated from the product. Residual, this hot sand prevented the product from cooling.

The present invention has been made in view of the above circumstances, and impacts the cast product after casting to separate the adhered sand from the product, and quickly removes the separated sand from the product, The purpose is to enhance the cooling effect of.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the gist of the present invention is to vertically install a knockout hammer above a vibrating conveyor that conveys a product to be processed.

That is, the present invention comprises a vibrating conveyor and a knockout hammer device that is vertically provided above a substantially central portion of the vibrating conveyor, and the knockout hammer device is further provided with a cylindrical shape that is fixedly and vertically provided above the vibrating conveyor. Fixed bracket, a movable bracket vertically inserted into the fixed bracket so as to be vertically movable, and a knockout hammer suspended vertically so that a coil spring is interposed at the lower end of the movable bracket. It is characterized by that.

Hereinafter, the present invention will be described in detail based on embodiments.

(Structure) FIG. 1 is a partially cutaway front view of the device of the present invention, FIG. 2 is a partially cutaway front view of a knockout hammer device, and FIG.
It is sectional drawing in the AA line of a figure.

In the figure, (1) is a known vibration conveyor, and its configuration is described. (2) is a frame supported on the floor surface via a vibration-proof spring (3), and is directly above the frame (2). A trough (4) is disposed in parallel with the trough (4), and the trough (4) is provided on the frame (2) via a plurality of leaf springs (5) and coil springs (6) intersecting each other at right angles. It is swingably supported.

(7) is a vibration driving motor, and as is well known, a belt (8), a pulley (9), an eccentric shaft (11), a connecting rod (12),
First through the trough (4) through the connecting bracket (13)
Vibrate diagonally to the left and up in the figure. And a large number of casting products (W) with sand after casting on the trough (4),
The sheets are continuously conveyed in the arrow (B) direction at a predetermined interval from each other.

(14) is a knockout hammer device which is vertically installed near the center of the vibrating conveyor (1). To describe the structure, (15) is provided above the vibrating conveyor (4). Is a fixed bracket that is vertically suspended from a rack and is composed of a rectangular tube having a rectangular cross section. An air cylinder (16) is attached downward to one outer wall surface of the fixed bracket (15), and the fixed bracket is also attached. Four vertically rotatable rollers (17), (17), (17) and (17) are arranged on the inner wall surface of (15) facing the air cylinder (16) at predetermined intervals in the horizontal and vertical directions. Attached (see FIG. 3). (18) is a movable bracket composed of a bottomed rectangular tube having a square cross section.
Rails with a hexagonal cross section on both sides of (19) (19)
Are mounted in the vertical direction via a mounting bracket (not shown). The moving bracket (18) and rail (1
9) and (19) are loosely inserted into the fixed bracket (15), and rails (19) and (19) are connected to the roller (1).
7) (17) (17) (17) so that the moving bracket (18) is engaged by the rollers (17) (17) (17) (1).
Guided in 7), it is vertically movable. An opening is formed in the bottom surface of the moving bracket (18), and a cylindrical sliding metal (20) is vertically fitted in the opening.

A connecting bracket (21) is fixed to the lower outer wall surface of the moving bracket (18).
Is connected to the tip of the piston rod (22) of the air cylinder (16) by a pin, and is designed so that the moving bracket (18) is vertically moved up and down by the expansion and contraction operation of the piston rod (22).

(23) is a knockout hammer in which a chisel (24) is attached to the tip and a guide bar (26) is coaxially attached to the base end via a coupling (25), and a power supply hose (not shown) is used. The chisel (24) is vibrated by the pressurized air supplied to the hammer (23). The guide bar (26) is slidably fitted in the sliding metal (20) and has an upper end protruding from the sliding metal (20), and a stopper (27) is provided on the protruding portion. It is designed to be screwed to suspend the knockout hammer (23) on the movable bracket (18) so as to be vertically movable. A coil spring (28) is provided between the lower surface of the sliding metal (20) and the upper surface of the coupling (25) by winding the lower half part of the guide bar (26). (28) applies a predetermined pressing force to the knockout hammer (23).

(Operation) In the sand removing device for casting products configured as described above, in the air cylinder (1) of the knockout hammer device (14)
Casting product with sand after casting in a state where 6) is contracted to pull up the knockout hammer (23) and the motor (7) of the vibration conveyor (1) is driven to vibrate the trough (4). When a plurality of (W) are continuously supplied to the vibrating conveyor (1) at a predetermined interval, the product (W) moves on the trough (4) while vibrating in the arrow (B) direction of FIG. To do.

When the piston rod (22) of the air cylinder (16) is extended when the product (W) is conveyed to the vicinity of the central portion of the trough (4), the moving bracket (18) and the knockout hammer (23). Falls and the hammer (23)
The chisel (24) at the tip comes into contact with the upper surface of the product (W). Although the lowering of the hammer (23) is stopped here, the moving bracket (18) is further lowered slightly while pressing the coil spring (28), and as a result, the guide bar (26) is relatively raised and the stopper ( There is a slight gap between the slide metal (20) and the sliding metal (20).

In this state, when pressurized air is supplied to the knockout hammer (23) to vibrate the chisel (24) at the tip, and the product (W) is hit, the adhered sand is separated and the guide bar (26 ) Moves up and down along the sliding metal (20) to avoid a direct shock to the cylinder (16). At that time, the vibration conveyor (1) and the chisel (2
The knockout hammer (23) tries to jump greatly upward due to the resonance action with 4). However, this operation is suppressed by the pressing force of the coil spring (28), and the chisel (24)
Since the product (W) is hit by small vibrations, it can effectively remove sand. In this way, the sand adhered to the product (W) is separated from the product (W) by being hit by the chisel (24), and then shaken from the product (W) by the vibrating action of the vibrating conveyor (1). It is dropped and the product surface is completely exposed.

When the product (W) has moved forward and separated from the hitting range of the chisel (24), the driving of the knockout hammer (23) is stopped and the air cylinder (16) is contracted to operate the hammer (23). And wait for the next product (W) to be conveyed. The above-mentioned operations are regarded as one step, and the same steps are repeated, whereby a large number of casting products (W) are continuously sand-removed.

(Effects of the Invention) According to the present invention as described above, a casting product with sand after casting is first hit by a knockout hammer while being conveyed by a vibrating conveyor, and the impact sand at this time causes the attached sand to be a product. Separated from. Next, the separated sand on the upper surface of the product slides off from the product due to vibration when the product is conveyed by the vibration conveyor. As a result, the separated sand after knocking out does not remain on the upper surface of the product and hinders the cooling effect of the product.

[Brief description of drawings]

FIG. 1 shows an embodiment of the device of the present invention. FIG. 1 is a partially cutaway front view of the device, FIG. 2 is a partially cutaway front view of a knockout hammer device, and FIG. It is sectional drawing in the A line. (1): Vibration conveyor, (14): Knockout hammer device (15): Fixed bracket, (18): Moving bracket (23): Knockout hammer, (28): Coil spring

Claims (1)

[Scope of utility model registration request] 1. A vibrating conveyor (1) and a knockout hammer device (14) suspended above a substantially central portion of the vibrating conveyor (1), the knockout hammer device (14) further comprising: A tubular fixed bracket (15) fixedly hung above the vibrating conveyor (1), a movable bracket (18) loosely fitted in the fixed bracket (15) and vertically movable, and A sand removing device for a cast product, comprising a knockout hammer (23) suspended vertically by a coil spring (28) interposed at the lower end of a moving bracket (18).