JPS646866B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shakeout machine for separating a poured mold into a cast product and foundry sand.

Conventionally, poured molds are separated into castings and molding sand by applying vibration on the top surface of the grate of a vibrating machine, and then the castings are sent out to the outside by a pusher cylinder, or the sand is separated. A vibrator with a width and frequency selected for feeding is used to vibrate the casting, separating it from the casting sand, and sending the top surface of the grate outward.

However, in the former case, when the casting product is sent out by the pusher cylinder, it gets caught on the upper surface of the grid-like grate and breaks the piston rod of the pusher cylinder, and in the latter case, the weir part of the casting product breaks while being transported while being vibrated. There were problems such as it getting caught in the grid of the grate and making it impossible to transport it.

The present invention aims to solve these problems.

The configuration of the present invention will be explained below based on examples. Reference numeral 1 denotes a base frame, and two vibrating frames 4 are mounted and supported on the upper surface of the base frame 1 on support legs 2 via springs 3 at a predetermined interval in the direction of movement of the cast product. The vibrating frame 4 has side plates 4a erected on the upper surface of the support leg 2 at a predetermined interval in the direction perpendicular to the direction of movement, and the side plates 4a
are connected by connecting rods 5 provided at approximately equal intervals in the direction of travel, and the connecting rods 5 include:
Grid members 6 are provided at substantially equal intervals in the axial direction with their tips facing upward, and their proximal ends are fixed.
It forms a grid-like grate 7. Further, a vibration motor 8 is attached to the upper part of the side plate 4a, and the operation of the vibration motor 8 can impart a vibration effect to the poured mold on the upper surface of the grate 7 via the side plate 4a and the connecting rod 5. It's becoming like that. Reference numeral 9 denotes a support frame that is attached and supported on the upper surface of the base frame 1 via support legs 10, and the support frame 9 has a planar shape in which long vertical frames 9a are arranged in parallel at a predetermined interval in a direction perpendicular to the direction of movement of the cast product. At the same time, both ends of the vertical frame 9a are connected by a horizontal frame 9b, and on the top surface of the vertical frame 9a of the support frame 9, there are two opposite ends.
A plurality of pairs of bearings 11 are arranged at approximately equal intervals in the longitudinal direction, and a rotating crankshaft 12 is mounted on the bearings 11, and a crankshaft is mounted on the inner side of the bearing 11 on the rotating crankshaft 12. Mechanism 13 is inserted. The crank mechanism 13 includes a crank arm 14 whose base end is fitted and fixed to the rotating crankshaft 12, a pin 15 rotatably connected at the lower end to the tip of the crank arm 14, and a walking beam 16 shaped like a frame at the upper end. Consisting of a connecting fixing plate 17 attached to the lower surface,
The lattice member is attached to the upper surface of the walking beam 16 via a support frame 18 which is formed by connecting two frames with a regular cross-sectional shape as shown in FIG. A large number of product support rods 19 that can protrude upward from the upper end surface of the lattice member 6 are installed between the lattice members 6 . Further, a drive shaft of a drive motor 21 attached and supported on the upper surface of a support member 20 protruding from the side surface of the support leg 10 is connected to the outer end of the bearing 11 of the rotating crankshaft 12 at the central position via a coupling 22. When the drive motor 21 is activated, the walking beam 16 repeatedly moves upward, forward, downward, and backward around the rotating crankshaft 12 via the crank arm 14. The unloading chute 23 is moved forward on the upper surface of the grate 7 by a radius of rotation of 14.
It can be taken out through the. 24
is a carry-in chute installed on the carry-in side of the grate 7, and the poured mold 25 is introduced onto the upper surface of the grate 7 via the carry-in chute 24. Note that 26 is a sand recovery chute, and a sand recovery conveyor 27 is extended below the sand recovery chute 26, and the sand separated from the cast product on the upper surface of the grate 7 is conveyed to the sand recovery conveyor 27 through the sand recovery chute 26. It is now possible to collect it through

Next, the operation of the device configured as described above will be explained. When the vibration motor 8 is activated and the grate 7 is vibrated up and down via the vibration frame 4, when the poured mold 25 is introduced onto the upper surface of the grate 7 via the loading chute 24, the poured mold is removed. 25 is subjected to upward and downward vibrations and is separated into a cast product and molding sand, and the drive motor 2
1 and rotates the crank arm 14 around the rotating crankshaft 12, the walking beam 16 repeatedly moves upward, forward, downward, and backward, and the cast product on the upper surface of the grating 7 is rotated by the crank via the product support rod 9. It is moved forward by the radius of rotation of the arm 14 and taken out to the outside via the delivery chute 23. Further, the molding sand separated from the cast product falls from between the grid members 6 and is collected by the sand collection conveyor 27 via the sand collection chute 26. Thereafter, repeat the above operation.

From the above explanation, it is clear that according to the present invention, the cast product is reliably sent to the outside without being caught on the top surface of the grate while being separated from the casting sand while being sent along the top surface of the grate. However, the contribution it makes to this type of industry is significant.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention, and FIG. 2 is a front view of FIG. 1. 6: Grid member, 7: Grate, 18: Walking beam, 19: Product support rod.

Claims (1)

[Claims] 1. A grate consisting of a plurality of elastically supported lattice members is provided so as to be able to vibrate upward and downward, and a walking beam is provided below the grate with a product support rod that can protrude upward from the upper end surface of the lattice member. This shake-out machine is characterized by being able to move up and down, forward and backward repeatedly.