JPH048122Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a reversing device for reversing plate materials, particularly heavy materials such as spring plate materials.

[Prior Art] FIGS. 4 and 5 each show a cross section of a typical spring plate material used in a stacked leaf spring for a vehicle suspension. In order to reduce the weight of these spring plates, a concave groove is formed on the upper surface of the center part (Fig. 4), or the center part is curved upward to prevent misalignment when used in stacked applications. (Fig. 5).

[Problems to be solved by the invention] By the way, these spring plate materials are hot-formed with rolling rolls as shown in FIG. 6, and then cut into regular lengths with a shearing machine. In order to prevent the protruding surface of the above-mentioned fitting part from being damaged by the blade surface of the cutting tool, as shown in FIGS. disconnect.

Conventionally, the work of reversing such spring plate materials has been carried out manually, but there have been problems in that reversing high-temperature heavy materials causes great fatigue and requires time and effort.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a reversing device that can efficiently perform reversing of heavy materials.

[Means for Solving the Problems] The configuration of the present invention will be explained with reference to FIG. 1. The reversing device is rotatable about the support shaft 31 from a horizontal state to a vertical state, and rotates the plate material W in the horizontal state. A rotary table 1 to be placed, and a driving means 6 for rotationally driving the rotary table 1.
and a receiving member 2 rotatably supported on the support shaft 31, having a hook-shaped receiving surface 21a for receiving the end of the plate material W that slides down as the rotary table 1 rotates; A spring member 42 is provided that biases the receiving member 2 so that the receiving surface 21a is located near the end surface of the plate material falling side of the rotating table 1 in a horizontal state.

[Operations and Effects] When the rotary table 1 is rotated to a vertical position, the plate material W slides down on the rotary table 1 as a result of this rotation and is subjected to a forward inversion inertial force. When the end portion W1 of the plate material W comes into contact with the receiving surface 21a of the receiving member 2, the receiving member 2 receiving the load of the plate material W rotates around the support shaft 31 against the spring force of the spring member 42, With this rotation, the receiving surface 21a moves downward and rearward. As a result, the impact when the plate comes into contact with the receiving surface 21a is alleviated, and as the hook-shaped receiving surface 21a moves, the hook-shaped receiving surface 21a moves forward about the end W1 of the plate that comes into contact with it. Generates a reversing inertial force.

In this way, the reversal inertia caused by the movement of the receiving surface 21a is added to the reversal inertia generated by the vertical rotation of the rotary table 1, and the plate material is reliably reversed.

[Example] FIG. 1 shows an overall side view of a reversing device. In the figure, a pedestal 3 erected on a floor F has a rotary table 1 and a receiving member 2 rotatably mounted on a support shaft 31 provided thereon. The rotary table 1 is a quarter-circular plate whose center part is supported by the support shaft 31, and rotates counterclockwise by the spring force of a spring member 41 stretched between one part of the periphery and the floor F. Rotationally biased. On the end surface 1b of the rotary table 1 located in the biasing direction, a tip 5 of the push plate 5 is provided.
1 abuts against each other and prevents further rotation in the counterclockwise direction. In this state, the upper end surface 1a of the rotary table 1 is horizontal.

The push plate 5 is fixed to a piston rod 61 of an air cylinder 6 provided on the pedestal 3,
As the rod 61 expands and contracts, it moves in the left-right direction in the figure. Note that the top surface of the tip 51 of the push plate 5 is an inclined surface.

The receiving member 2 has the center of its plate supported by the supporting shaft 31, and rotates independently of the rotary table 1.
A spring member 42 is stretched between the rear end of the receiving member 2 and the floor F, and the spring member 42 is biased to rotate counterclockwise by the spring force. The receiving member 2 is prevented from rotating counterclockwise from the illustrated horizontal state by a stopper portion (not shown). In the horizontal state, the tip 21 of the receiving member 2 is bent upward, and the rear surface facing the rotary table 1 is a hook-shaped receiving surface 21a.

A plurality of reversing devices having such a structure are provided in the longitudinal direction of the spring plate material W and operate simultaneously. A spring plate material W is placed on the end surface 1a of these reversing devices as shown in the drawings by a conveying device (not shown). In addition, S in the figure
is a full bar for transportation.

When the plate material W is to be reversed, the piston rod 61 is contracted to move the push plate 5 to the left in the figure. As the push plate 5 moves, the rotary table 1 is rotated clockwise against the spring force of the spring member 41. Since the tip of the pushing plate 5 is formed into an inclined surface, this rotation is performed at a speed corresponding to the slope of the inclined surface.

As the rotary table 1 rotates, the spring plate material W rotates at the end surface 1.
a, and its end W1 falls into contact with the receiving surface 21a of the receiving member 2. When the receiving member 2 receives the load of the fallen plate material W, it rotates clockwise against the spring force of the spring member 42, and the receiving surface 21a moves downward and rearward with this rotation. As a result of this movement, the impact at the time of the fall is absorbed, and a reverse inertia force is applied to the plate material W around the end portion W1 that abuts the receiving surface 21a. When the rotary table 1 is in an upright state (Fig. 2), the plate material W is placed on the receiving surface 21a.
The reversal inertia force received from the turntable 1 around the end W1 supported by the rotary table 1 and the reversal inertia force applied by the movement of the receiving surface 21a combine to ensure that the shaft is reliably placed on the shaft full bar S (Fig. (medium dashed line).

When the spring plate material W is transferred by the shallow bar S and its load is removed, the receiving member 2 returns to its original position by the spring force (FIG. 3). After that,
When the piston rod 61 is extended and the push plate 5 is moved to the right in the figure, the rotary table 1 is rotated clockwise by the spring force and returns to the original position in FIG. 1.

As described above, the reversing device of the present invention places a plate on a rotary table that rotates from a horizontal state to a vertical position, and rotates the end of the plate that slides down as the rotary table rotates. The receiving surface of the movable receiving member is supported so as to apply an elastic and reversing inertia force to reliably invert the plate material around the above-mentioned end, making it possible to safely and easily invert heavy plate materials. It is something.

[Brief explanation of the drawing]

Figures 1 to 3 are overall side views of the reversing device according to the present invention, Figures 4 and 5 are cross-sectional views of the spring plate material, and Figure 6 is a cross-sectional view of the spring plate material formed by rolls. , 7 and 8 are cross-sectional views of a spring plate material cut by a shearing machine, respectively. DESCRIPTION OF SYMBOLS 1... Turntable, 2... Reception member, 21a... Reception surface, 3... Frame, 31... Support shaft, 42... Spring member, 5... Push plate, 6... Air cylinder (driving means) , W... plate material, W1... end part.

Claims (1)

[Scope of utility model registration request] a rotary table that is rotatable around a support shaft from a horizontal state to a vertical state, and on which a plate is placed in the horizontal state;
It has a drive means for rotationally driving the rotary table, and a hook-shaped receiving surface for receiving an end of a plate material that slides down as the rotary table rotates, and is rotatably supported on the support shaft. A plate material reversing device comprising a receiving member and a spring member that biases the receiving member to position the receiving surface near an end surface on the falling side of the plate material of the rotating table in a horizontal state.