JPH08282829A - Plate inversion device - Google Patents

Abstract

PURPOSE: To provide a plate inversion device which can efficiently invert plates and greatly shorten a time for inversion operation. CONSTITUTION: This device is a plate inversion device 10 having a plurality of plate holding means 13-16 which holds the plates to be inverted and are arranged symmetrically and a mechanism for turning and transferring the plate holding means 13-16. Each plate holding means 13-16 has a first and a second belt conveyors 29, 30 which make a pair of upper and lower conveyors and a pressing and driving mechanism 42 for moving up and down one of the first and the second belt conveyors 29, 30 and for holding the plate conveyed into the middle section thereof by pressing it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for inverting a plate material made of a relatively brittle material such as a cement board used as a building material.

[0002]

2. Description of the Related Art Inversion of a plate material having a sufficient strength, such as an iron plate material, can be performed by relatively clamping the plate material and rotating it 180 degrees using electric power or air power. Although it is simple, in the case of a plate material using cement as the material, if a part of the plate material is clamped, the plate material may be cracked, so it is difficult to clamp and invert. Therefore, in the case of such a brittle large-sized plate material, it is necessary to hold the entire plate material from the front and back and invert the holding mechanism.

[0003]

Therefore, it was initially thought that the plate material to be inverted is sandwiched between the belt conveyors from above and below, and the conveyor is inverted. However, in the inversion device having such a simple structure, the plate material is After accepting and reversing 180 degrees and discharging the work, it is necessary to perform 180 degree reversal and return, so the work becomes a series and efficiency is poor, and further, when the plate material is long, inside the conveyor It was found that there is a problem that it takes time to receive and pay out the plate material of. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a plate reversing device capable of efficiently reversing a plate and significantly reducing the reversing work time.

[0004]

A method according to the above-mentioned object.
The plate material reversing device described above is a plate material reversing device having a plurality of symmetrically arranged plate material holding means for holding the plate material to be reversed, and a rotary feed mechanism of the plate material holding means, wherein each of the plate material holding means is provided. Is a first and second belt conveyors that are paired up and down, and a pressing drive mechanism that drives one of the first and second belt conveyors up and down to press and grasp the plate material carried into the intermediate portion. Have. Further, a plate material reversing device according to a second aspect is the plate material reversing device according to the first aspect, wherein a cushion member is attached to the surfaces of the first and second belt conveyors.

[0005]

In the plate material reversing device according to the first and second aspects, a plurality of plate material holding means for pressing and holding the plate material to be reversed by the first and second belt conveyors which are vertically paired are arranged symmetrically. When one plate material holding means is horizontally arranged, the other plate material holding means is also horizontal. In this state, the pressing drive mechanism is operated to release the plate material holding means, the plate material is carried into one plate material holding means, and the plate material is carried out from the other plate material holding means to improve the efficiency of the reversing work. You can Particularly, in the plate material reversing device according to claim 2, since a cushion member such as felt is attached to the surfaces of the first and second belt conveyors, the plate material inserted in the intermediate portion is formed. Therefore, the plate material can be held with a relatively weak pressing force.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a front view of a plate reversing device according to an embodiment of the present invention, FIG. 2 is a plan view of the same part with a cutout, FIG. 3 is a side view of the same part with a cutout, and FIG. .

As shown in FIGS. 1 to 3, a plate reversing device 10 according to an embodiment of the present invention has four wheels 11 at the bottom.
The rotating frame 12 supported by the rotating frame 12 and the first to fourth plate member holding means 1 symmetrically arranged in the rotating frame 12.
3-16. These will be described in detail below.

The rotating frame 12 is provided with front and rear outer guide wheels 17 and 18, a plurality of outer horizontal connecting members 19 for connecting the outer guide wheels 17 and 18, and a small-diameter circle provided corresponding to the outer guide wheels 17 and 18, respectively. The support members 20 and 21 are connected to a plurality of inner horizontal members 22 that connect the front and rear circular support members 20 and 21 having small diameters, the front and rear outer guide wheels 17 and 18, and the front and rear circular support members 20 and 21 respectively. The four frames of the connecting members 23 and 24 arranged in a substantially radial pattern are the main frames.

Ring-shaped projections 25 and 26 are provided on the front and rear sides of the outer guide wheels 17 and 18, respectively, and the wheels 11 roll inside the ring-shaped projections 25 and 26.
Does not come off. The outer horizontal connecting member 1
Three supporting members 27 are provided in the middle portion of 9, and further four rib plates 28 having an opening in the center are provided in front of and behind the rotating frame 12 to reinforce the whole. The first to fourth plate material holding means 13 to 16 are arranged in the middle of the front and rear connecting members 23 and 24, but the first to fourth plate material holding means 13 to 16 are arranged facing each other. 1
And second belt conveyors 29 and 30, respectively.

The first belt conveyor 29 is mounted on the through members 31 and 32 which are bridged over the front and rear connecting members 23, and, as shown in FIG. A drive mechanism 35 for the belt 33 is provided at the rear portion, and support rollers for preventing the belt 33 from bending are provided at appropriate intervals in the vertical direction. Also, the second
The belt conveyer 30 of FIG.
The tensioning mechanism 39 for the belt 38 is attached to the front portion of the lifting platform 37, like the first belt conveyor 29.
A drive mechanism 40 for the belt 38 is provided at the rear portion, and support rollers for preventing the belt 38 from bending are provided at appropriate intervals in the middle portion.

The elevating platform 37 is provided with four guide rods 41 in the front, rear, left and right, and four air cylinders 42 for elevating the elevating platform 37 are provided. The second belt conveyor 30 can be separated from or in contact with the conveyor 29. The guide cylinder into which the guide rod 41 is fitted and the air cylinder 42 are fixed to the rotary frame 12 via a supporting member (not shown), and these constitute a pressing drive mechanism. The belt 33,
On the surface of 38, a cushion member such as felt is attached to softly press the plate member 43 that is placed and pressed.

The front wheel 11 of the wheels 11 is a free wheel that freely rolls, but the rear wheel 11 is a free wheel.
Is a drive wheel and is driven by the motor 44 to rotate the rotary frame 12 by 90 degrees, and any two plate material holding means are in a horizontal state. A rotary feed mechanism is configured by including the motor 44, position detecting means such as a limit switch for stopping the rotary frame 12 at a predetermined position, and a control device thereof. Then, the plate material holding means in the horizontal state (the first plate material holding means 13 in FIG. 1)
2 and 3, a carry-in conveyer 45 composed of a belt conveyer is provided on the upstream side of the first conveyer 45, and the plate member 43 is connected to the first belt conveyer 29 as shown by a two-dot chain line in FIG. It is designed to be completely placed on the first belt conveyor 29. Further, a carry-out conveyor 46 composed of a roller conveyor is arranged on the downstream side of the plate material holding means in a horizontal state (the third plate material holding means 15 in FIG. 1) so that the inverted plate material 43 can be taken out. Has become.

A plate reversing device 1 having such a structure
0 will be described with reference to FIG. 4, with the first and third plate member holding means 13 and 15 in a horizontal state, and with the second belt conveyor 30 raised.
The carry-in conveyor 45 and the first belt conveyor 29 are driven to convey the plate material 43 to the center on the first belt conveyor 29. In this state (position), the air cylinder 42 is extended to lower the second belt conveyor 30, the plate material 43 is pressed and held by the first and second belt conveyors 29 and 30, and then the rotary frame 12 is rotated 90 degrees. When it is rotated counterclockwise, moved to the position, and then moved to the position, the first plate member holding means 13 causes the second belt conveyor 3 to move.
0 becomes the lower position and becomes horizontal.

In this state, the air cylinder 42 is contracted,
The second belt conveyer 30 is slightly lowered with the plate material 43 placed thereon to release the pressed state of the plate material 43.
The belt conveyor 30 and the carry-out conveyor 46 are driven to discharge the plate material 43. Next, the first plate material holding means 13 is further rotated 90 degrees counterclockwise (position), and after the other plate material holding means performs a predetermined operation, it is further rotated 90 degrees to the original position (position). Will return.
Therefore, in this embodiment, the plate material 43 can be loaded into the plate material holding means in the position of and the operation of unloading the plate material 43 from the plate material holding means in the position can be performed at the same time. Carry-in can be done.

In this embodiment, the first to fourth plate member holding means are arranged 90 degrees out of phase, and the rotary frame 12
Even if the speed is slow, the inversion work can be performed efficiently. It should be noted that the present invention is applicable even if the number of plate material holding means is an even number and they are arranged symmetrically, even if the number is two or six or more. Also, the first
The present invention can be applied to a roller conveyor whose surface is coated with an appropriate soft material instead of the second belt conveyor.

[0016]

The plate reversing device according to the first and second aspects is
As is clear from the above description, since the plate material holding means arranged at the symmetrical positions are rotated by the rotary feed mechanism, the work of reversing the plate material can be efficiently performed. Particularly, in the plate material reversing device according to the second aspect, since the plate material is held via the cushion member, the plate material to be reversed can be gripped with a comparatively small force without causing a flaw.

[Brief description of drawings]

FIG. 1 is a front view of a plate material inverting device according to an embodiment of the present invention.

FIG. 2 is a cutaway plan view of the same portion.

FIG. 3 is a cutaway side view of the same portion.

FIG. 4 is an explanatory diagram of the same.

[Explanation of symbols]

 10 Plate Reversing Device 11 Wheel 12 Rotating Frame 13 First Plate Material Holding Means 14 Second Plate Material Holding Means 15 Third Plate Material Holding Means 16 Fourth Plate Material Holding Means 17 Outer Guide Wheel 18 Outer Guide Wheel 19 Outer Horizontal Connection Member 20 Circular support member 21 Circular support member 22 Inner horizontal member 23 Connection member 24 Connection member 25 Ring-shaped protrusion 26 Ring-shaped protrusion 27 Support member 28 Rib plate 29 First belt conveyor 30 Second belt conveyor 31 Through member 32 Through Member 33 Belt 34 Tension mechanism 35 Drive mechanism 36 Through member 37 Elevating platform 38 Belt 39 Tension mechanism 40 Drive mechanism 41 Guide rod 42 Air cylinder 43 Plate material 44 Motor 45 Carry-in conveyor 46 Carry-out conveyor 46

Claims (2)

[Claims] 1. A plate material reversing device comprising a plurality of plate material holding means symmetrically arranged to hold a plate material to be reversed, and a rotary feed mechanism of the plate material holding means, wherein each of the plate material holding means is vertically movable. A pair of first and second belt conveyors, and a pressing drive mechanism that presses and holds one of the first and second belt conveyors to press and grasp the plate material carried into the intermediate portion. Characteristic plate reversing device. 2. The plate reversing device according to claim 1, wherein a cushion member is attached to the surfaces of the first and second belt conveyors.