JPS5815239B2 - press bang - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a press plate for a wing press that compresses an object by rotating and pressing a pair of rotatably pivotally connected press plates.

This type of wing press is often used as a waste treatment press, such as a scrapped car press. To explain with reference to FIG. It is composed of a hydraulic cylinder 3 that rotates both press plates 1 from a flat expanded state to an upright state, and a wedge press 2 that is located above a frame 4 and presses an object to be compressed. Initially, the object to be compressed is placed on a pair of left and right press plates 1 which are in a flat state on the frame 4, and then the object to be compressed is pressed and fixed at one point by the wedge press 2 located above the frame 4, and then by the hydraulic cylinder 3, The press plate 1 is rotated using pivot points A and B as fulcrums to perform the press operation.

To explain the action of such a wing press in detail from the viewpoint of the shift in the contact position between the compressed object and the press plate due to the rotation of the press plate, which is related to the problem to be solved by the present invention, in Fig. 2, the compressed object is When the press plate 1 placed on it rotates in the direction of the arrow, the contact point C with the object to be compressed on the press plate 1 draws a trajectory CC1 with a radius r around the pivot point A of the press plate 1. On the other hand, the point C that contacts the press plate 1 of the object to be compressed draws a locus CC2 with a radius R centered on the point 0 regulated by the compression of the wedge press 2.

Therefore, since point A, which is the rotation center of the press plate 10, and point 0, which is the bending center of the compressed object, are not concentric, when the press plate 1 rotates to an angle θ, there is a deviation of Lθ in the rotation radius direction between the two. occurs, and when the press plate 1 rotates to an angle of 90° at which compression is completed, a deviation of Lmax occurs.

Since this displacement phenomenon occurs between metals and under press pressure, the sliding friction force between the compressed object and the press plate 10 is extremely severe.

■The frictional force consumes wasted energy, which impairs press efficiency.

■There were drawbacks such as a shortened lifespan of the press plate due to friction.

Therefore, the present invention aims to eliminate such drawbacks and provide a press plate for a wing press with good press efficiency.

The following describes an embodiment in which the present invention is applied to the wing press shown in FIG. 1. In FIG.
A sliding plate 5 biased toward the rotational fulcrum is slidably mounted thereon.

In addition, the power cost is such that the longitudinal length of the recess on which the sliding plate 5 of the plate 8 is placed is slightly longer than the length of the sliding plate 5 and slightly longer than the maximum deviation Lmax that occurs between the material to be compressed and the press plate in the final step.

Next, the action will be explained.

Here, the frictional force between the compressed object and the sliding plate 5 is f' The frictional force between the sliding plate 5 and the power receiving plate 8! Then, since rolling friction is much smaller than sliding friction, f'> f
“The relationship arises.

As the press plate 10 rotates, the sliding plate 5 and the power receiving plate 8 move from the proximal end of the concave portion of the plate 8 by the amount of deviation Lθ that occurs between the compressed object and the power receiving plate 8 across the sliding plate 5. spring 70
It moves toward the tip side against the elasticity, and in the final step, the power receiver moves to the tip of the recessed portion of the plate 8.

When the press plate 1 is returned to its original position after the pressing operation is completed, the power receiver of the sliding plate 5 is also returned to the base end side of the recessed portion of the plate 8 by the spring 7.

As described above, the press plates of the wing press of the present invention include a pair of press plates rotatably pivoted to the frame, and a hydraulic cylinder that rotates both press plates from a flat expanded state to an upright state. and a wing press consisting of a wedge press located above the frame to press an object to be compressed, in which the press plate is composed of a power receiving plate that receives compression power and a sliding plate that comes into contact with the object to be compressed; Since the receiving plate and the sliding plate are configured to slide relative to each other in a direction perpendicular to the direction of rotation and compression of the press plate, the movement between the object to be compressed and the power receiving plate caused by the press operation in the direction perpendicular to the direction of press compression is avoided. Since the relative movement is performed between the sliding plate and the power receiving plate, which are designed so that the relative movement in the relevant direction is initially performed under low friction, ■ less energy is spent on frictional force, resulting in less press power. It is good even if there are few.

■ Another advantage is that there is no damage to the press plate due to friction.

The purpose of the present invention is to convert the sliding friction that occurs between the compressed object and the press plate into as small a friction force as possible, so instead of the cylindrical rollers in the above embodiment, grease is injected and the sliding is performed. Sliding properties between the plate and the power receiving plate may be maintained.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the use of the wing press, FIG. 2 is an explanatory diagram of the operation of the wing press, and FIG. 3 is a perspective view of the press plate of the wing press according to the present invention. 1 nibless plate, 2: wedge press, 3: hydraulic cylinder, 4: frame, 5: sliding plate, 8: power receiving plate.

Claims (1)

[Claims] 1 A pair of press plates rotatably attached to the frame, a hydraulic cylinder that rotates the press plates from a flat unfolded state to an upright state, and an object to be compressed located above the frame. In this wing press, the press plate is composed of a power receiving plate that receives compression power and a sliding plate that comes into contact with the compressed object. A press plate for a wing press, characterized in that it is configured to slide relatively in a direction perpendicular to a dynamic compression direction.