JPS6040314A - Apparatus for turning long and heavy material - Google Patents

Abstract

PURPOSE:To enable an apparatus for laterally turning H type steel material or the like to be easily operated to turn the material laterally without any special skill, by constituting the apparatus such that the corner portion of a cam member having L-shape enlarged and opened upwards is moved obliquely upwards and the arm for supporting the material is raised by means of movement of the both sides of the cam member so as to laterally turn over the material. CONSTITUTION:A steel material 27 is put on the left arm 10, and the rod 23b of an actuator 23 is extended. The corner portion of the cam member 14 is thereby pressed toward the left side and the cam member 14 moves right and left along the rail 13 through the roller 15, while moving upwards. Accordingly, the left and right sides 14a and 14b, while moving leftwards, press the left and right arms 10 and 11 upwards, respectively, through the rollers 16 and 17 provided on the upper ends. Since the shorter side 14b, has a larger rising angle than the longer side 14a, the right arm 11 is first moved upward. Then the left arm is raised up, turned laterally onto the right arm 11 by its own weight at the position as shown by the dot-and-dash line, and is put on the right arm 11. Said constitution enables any long and heavy material to be easily turned laterally without any special skill.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an overturning device for overturning long heavy objects such as H-shaped steel and engineering-shaped steel.

When processing the above-mentioned long and heavy object, there are cases where it is desired to carry out a predetermined processing in an upright state and then perform the processing in the next step in a state in which the object is turned sideways by 90 degrees.

Conventionally, in such cases, a crane has been used, but this has the disadvantage of being expensive and requiring skill in the overturning work.

SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive overturning device that uses a cam mechanism and allows even an amateur to easily overturn the long heavy object.

In order to achieve the above object, the present invention is characterized by the following configuration.

That is, one end of a pair of arms is rotatably connected to a support shaft provided at the top of the frame in close proximity to each other, and a rail extending crosswise to the support shaft below the support shaft is connected in the vertical direction. An L-shaped cam body that is tilted at an angle and fixed to the frame and expands upward is arranged below the support shaft and each arm, and the corners of the cam body are mounted so as to be movable along the rail. The upper end of the short side and the upper end of the long side of the cam body are movably abutted along one arm and the other arm, respectively, and the reciprocating mechanism is connected to the corner of the cam body. Driving device for long and heavy objects.

Hereinafter, an embodiment in which the above configuration is embodied will be described based on the drawings.

First, in the drawings, FIG. 1 is a plan view showing an embodiment of the rollover device according to the present invention, FIG. 2 is a partially sectional left side view thereof, and FIG. 3 is a main part of a state in which a long heavy object is placed. FIG. 4 is a partially cutaway sectional front view of the main part showing its operating state.

Reference numeral 1 denotes a frame, which is formed into a rectangular parallelepiped by connecting front and rear plates 2 and 3 and left and right side plates 4 and 5 to each other.

The frame 1 has wheels 6 attached to its lower part, and is placed on several moving rails 8 mounted on the upper surface of the base frame 7 via the wheels, so that it can be moved in the left-right direction.

A support shaft 9 is provided with one extension opening on the upper left side of the frame 1 in the front-rear direction, and a pair of arms made of H-shaped steel extend from the support shaft 9 in the left-right direction. The arm 10 and the right arm 11 are each rotatably taken out.

The left arm 10 is supported by the left side plate 4 in a horizontal state, and the right arm is supported in a horizontal state by a cross plate 12 spanning between the front and rear plates 2 and 3.

In addition, a pair of groove-shaped rails 13 are provided on the front and rear plates 2 and 3 of the frame 1 at a portion located below the support shaft 9.
The rails 13 intersect with the support shaft from the left and right directions, and are inclined at about 45 degrees with respect to the horizontal plane so that the right end is low and the left end is high.

Reference numeral 14 denotes a cam body formed in an unequal shape, and is arranged so as to expand upward at the support shaft 9 and the lower blades of the left and right arms 10 and 11.

As shown in FIG. 3, the cam body 14 has a pair of rollers 15 rotatably attached to its corners, and the rollers 15 are rotatably fitted to the pair of rails 13 described above, so that the cam body 14 can be attached to the rails. 13.

Further, the left side 14a of the cam body 14 is made longer, and the roller 16 is mounted on the upper end thereof, and the roller 16 is brought into contact with the lower surface of the left arm 10 in a movable manner, and the right side 14b is made shorter than the left side 14aL. The upper end of the roller 17 is mounted on the shaft, and the roller 17 is brought into contact with the lower surface of the right arm 11 in a movable manner.

In the figure, 18 and 19 are shafts that support the rollers 16 and 17 in several cases on the cam body 14, and 20 and 21 are guides that are attached to the left and right arms 10011 and guide the shafts 18 and 19. It is a metal fitting.

Next, a reciprocating mechanism 22 is installed in the right side of the frame 1 mentioned above. The reciprocating mechanism 22 includes a screw-type telescoping body 23 extending in the left-right direction, and a forward/reverse motor 24 attached to the right end of the telescoping body 23 for telescopically operating the telescoping body 23.
The right end of the case 23a of the telescopic body 23 is rotatably connected to the frame 1 via the support pin 25, and the left end of the movable rod 23b of the telescopic body 23 is bent upward into an L-shape. Its left end is rotatably connected to the corner of the cam body 14 via a pin 26.

Next, the operation of the above embodiment will be explained.

First, the overturning device according to this embodiment is arranged so that the left and right arms 10 and 11 are perpendicular to the traveling direction of a roller conveyor (not shown), and the long heavy object 27 (in this example, H In the state (37th) in which the molded steel (shaped steel) is positioned directly above the left arm 1o, the motor 24 is started to rotate in the forward direction so that the movable rod 23b of the actuating body 23 is extended.

As a result, the corner of the cam body 14 is pressed to the left in FIGS.
It is moved to the left while moving upward along /13.

As a result of the above movement, the left side 14a and the right side 1'4b are moved to the left and the rollers 16 and 1 are placed at their upper ends.
7, the left and right arms 1o and 11 are pressed upward, but the right side 14b on the short side presses the left side 14 on the long side
Since the rising angle is larger than that of the left and right arms 10 and 11 due to the pressing force of the movable rod 23b mentioned above,
The upward component force exerted on the right side 14b is larger. Furthermore, a long heavy object 27 is placed on the upper surface of the left arm 10 that is pressed by the left side 14a.

Therefore, at the initial stage of extension of the movable rod 23b, the left side 14a of the cam body 14 moves leftward in the horizontal direction, and the right side i
+b moves to the left while moving upward, and only the right arm 11 rotates upward.

In the above state, when the roller 17 on the right side 14b approaches the support shaft 9 by a predetermined value, the reaction force of the right arm 11 increases, so that further upward movement of the right side 14b is prevented, and , the left side 14a is moved upward (states shown by the solid line and the dashed-dotted line in FIG. 4).

4, the long heavy object placed on the left arm 10 overturns 90 degrees to the right from the state shown in FIG. 3 due to its own weight, and the right arm 10 will be placed on.

When the movable rod 23b further extends from this state, the left side 14a of the cam body 14 has a larger rising angle than the right side 14b, the long heavy object 27 is placed on the right side, and the cam body 14 By moving the pin 26 connecting the movable rod 23b and the movable rod 23b to the left from the support shaft 9, etc.
The left arm 10 gradually rises toward the vertical direction, and the right arm 11 gradually returns toward the horizontal direction (the state indicated by the two-dot chain line in FIG. 4).

When the movable rod is finally extended, the left arm 10 becomes vertical and the right arm becomes horizontal and supported by the cross plate 12, as shown by the two-dot chain line in FIG.

Here, in this example, as shown in FIG.
A first stopper mechanism 28 is provided on the shaft 18 provided at a to prevent further excessive rotation when the left arm IO stands up vertically.

First, an elongated sheet metal plate is rotatably attached to a shaft 18 at its center, and an engaging pawl 28& that can be engaged with the left end of the left arm 10 is provided at its left end.

In the first stopper mechanism 28, when the left arm 10 is in a horizontal state, that is, when the cam body 14 is located on the right side, the engaging claw 28a is retracted to the lower surface of the left arm lO, and the (third
solid line state) The left arm 10 is upright, that is, the cam body 1
4 is located on the left side, the engaging claw 28a projects leftward from the left arm 10 and engages with the left end of the left arm 10 (as shown by the two-dot chain line in the figure).

Further, in this example, when the left arm 10 is in the horizontal state, the right arm 11 is allowed to stand up and rotate, but when the right arm 11 returns to the horizontal state with the left arm 10 in the upright state, the right arm 11 is allowed to stand up and rotate. A second stopper mechanism 29 is provided to prevent rotation.

That is, as shown in FIG.
is installed so that it can be slid in the horizontal direction, and the engagement pin 3 is attached to the right end of the
1 is attached to the cross plate 12 so as to be freely retractable, and the left end of the pressing rod 30 is connected with a pin to the upper right side of a crank-shaped rocking body 32.

The rocking body 32 has a lower right side rotatably connected to the frame 1 with a pin, and a sensing body 33 is fixed to the upper end of the left side so as to protrude upward. A spring 34 that presses the left side of the rocking body 32 upward and a spring 35 that presses the upper end of the right side of the rocking body rightward are provided, respectively.
4, the push rod 30 is constantly pressed to the right.

The sensing body 33 is vertically adjustable, and the left arm 10
When it is in a horizontal state, it comes into contact with its lower surface and is pressed downward.This causes the swinging body 32 to rotate to the left in the figure, and accordingly, the push rod 30 and the engagement pin 31 is now moved to the left.

An engaging piece 36 that can engage with the engaging pin 31 is provided at the lower right end of the right arm 11.

As is clear from the above explanation, according to the configuration of the present invention, by moving the reciprocating mechanism forward (extending operation), the short side of the cam body first rotates one arm upward by a predetermined angle. After that, the long side of the cam body rotates the other arm upward, and then the long side rotates the other arm vertically, while the end side gradually rotates one arm horizontally. It will restore the direction.

Therefore, the long heavy object placed on the other arm at the beginning of the forward movement is smoothly overturned by the forward movement of the reciprocating mechanism.

In addition, when the forward movement mechanism returns (shortening operation), a long heavy object is placed on one arm, so the short side of the cam body simply moves horizontally along the lower surface of one arm in a horizontal state. The long side will move horizontally and downward.

Note that if a second strike mechanism is provided as in this embodiment,
It is safe because one arm is reliably held in a horizontal state during the return movement of the rhythmic mechanism.

As explained above, according to the present invention, it is possible to overturn a long heavy object by simply operating the reciprocating mechanism, so even an amateur can do it extremely easily and safely. can.

In addition, since the rollover device has a simple arm, cam body, rail, and reciprocating mechanism as its main components, it has the advantage that it can be obtained at a lower cost than the conventional multi-lane device.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the rollover device according to the present invention;
Figure 2 is a partially cutaway left side view of the same, Figure 3 is a front cross-sectional view of the main part with a long heavy object placed on it, and Figure 4 is a front cross-sectional front view of the main part with a part cut away showing its operating state. It is a diagram. -Frame, 6-Wheel, 7-Base frame, 8-Movement rail, 9-Spindle, 10-Left arm, 11-Right arm, 12-Cross plate, 13-Tru, 14-Cam body, 15 ~17-Roller, 18th year 19-Axis, 20021-Guide fitting, 22-One reciprocating mechanism, 23-Extensible body, 23a-Case, 23b-Movable loft, 25-Support bin, 26-F-Pin, 28-th 1 stopper mechanism, 28a - engaging claw, 29 - second stopper mechanism, 30 - push rod, 31 - engaging pin, 32 - rocking body, 33 - sensing body, 34035 - spring, 36 - engaging piece.

Claims (1)

[Claims] 1. One end of each pair of arms is rotatably connected to a support shaft provided in the upper part of the frame in close proximity to each other, and a rail extending crosswise to the support shaft below the support shaft is vertically connected. An L-shaped cam body that is tilted and fixed to the frame and expands upward is placed below the support shaft and each arm, and the corners of the cam body are placed so that they can move along the rail. The upper end of the short side and the upper end of the long side of the cam body are movably abutted along one arm and the other arm, respectively, and a reciprocating mechanism is connected to the corner of the cam body. A device for overturning heavy objects.