JPH06104496B2 - Work reversing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a work reversing device capable of always rotating in only one direction when reversing a plate-shaped work, eliminating play time for backward movement, and improving work efficiency. .

[Conventional technology]

For example, in a dry construction building, a panel body such as a wall panel or a floor panel used to form the wall body or floor body is often turned upside down during production. As such a device, there is known a reversing device capable of rotating the frame body, which accommodates the panel body, which is a work piece, in the normal direction and the reverse direction by 180 degrees.

On the other hand, the work fed into the frame body needs to be stopped in the frame body by using a stopper in order to reverse the work. Such a stop must be retracted from the transport surface for unloading the work when the work is turned over and then sent out.
A cylinder was used to retract this stopper.

[Problems to be Solved by the Invention]

However, since the air was supplied to the cylinder through the hose, the frame body cannot be continuously rotated and stopped in one direction, and in the conventional case, the frame body can be rotated normally and reversely every 180 degrees. I was repeating.

Therefore, not only the control device for rotating and stopping the frame becomes complicated, but also the idle time occurs at the time of reverse rotation, resulting in low work efficiency and poor productivity.

The present invention basically provides a stopper for the reversing machine, and an actuator in the vicinity of the reversing machine separately from the reversing machine, which enables the frame to rotate and stop in one direction. The object is to provide a work reversing device that can solve the problems.

[Means for Solving the Problems]

In order to achieve the above object, the work reversing device of the present invention,
In the frame body that rotates around the horizontal center line in one direction and stops every 180 degrees, form a work insertion gap that is open at both ends with the center line sandwiched and that is horizontal at the stop position of the frame body, and from one end A pair of transport conveyors having a transport surface capable of transporting the inserted work to the other end, and a pair of push-ups disposed on the other end and on both sides of the center line and movably supported at right angles to the transport surface. The contact piece has a shaft, a contact piece that is laid over one end of the push-up shaft on the workpiece insertion gap side, and a lifting plate that connects the other end of the lift-up shaft, and is normally biased by a spring to provide the contact piece. Is a reversing machine that opens the work insertion gap and is provided with a pair of stoppers that are arranged on both sides of the work insertion gap, and a reversing machine that is arranged in the vicinity of this reversing machine and on both sides of the center line and that moves up to the stop position The lifting plate for the stopper of the frame body Lifting said that an equivalent piece is protruded to the work insertion gap comprising a pair of working machine having a lifting piece for stopping the transfer of the work.

[Action]

The work reversing device of the present invention is a reversing machine in which a pair of conveyer conveyors and a pair of stoppers are provided in a frame body that rotates around a horizontal center line in one direction and stops at every 180 °, and a reversing machine. An actuator for stopping the transfer of the work by activating the stopper piece is provided in the vicinity of. Therefore, the actuator can be operated independently of the frame, and the frame can be continuously rotated and stopped in one direction. As a result, the control device for controlling the work reversing device becomes simple and
By rotating in only one direction, productivity can be improved.

The stoppers are arranged on both sides of the center line and are bridged to a pair of push-up shafts which are supported at right angles to a conveyance surface capable of transferring the work and one end of the push-up shafts on the side of the work insertion gap. Since the actuator has a contact piece and a lifting plate that connects the other end of the push-up shaft, and the actuators are arranged on both sides of the center line, the pair of actuators provides stable stability of the stopper. The piece can be projected into the work insertion gap, and the reliability of the device can be improved.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

1 and 2, a work reversing device 1 according to the present invention inserts a work into a frame 2 that rotates around a horizontal center line L and stops at every 180 degrees so that the work is horizontal at a stop position of the frame 2. An inversion machine 4 having a gap 3 is provided.

In this embodiment, a carry-in conveyor 31 composed of a roller conveyor is provided on the upstream side, that is, one end A side of the reversing machine 4, and a carry-out conveyor 32 composed of a roller conveyor is provided on the downstream side, that is, the other end B, similarly to the carry-in conveyor 31. They are arranged on the extension lines of the center line L, respectively.

The work reversing device 1 is a device for reversing a work carried in from a carry-in conveyor 31 provided at one end A thereof and sending it to a carry-out conveyor 32 provided at the other end B.

The work is a rectangular plate body, and in this embodiment, is a panel body such as a wall panel in which face plates are attached to the front and back sides of a frame in which frame materials are arranged in a rectangular shape.

The frame body 2 is formed by connecting three rotating plates 21, 21, 21 arranged side by side around the center line L by connecting frames 23, 23.

The rotary plate 21 has a doughnut-shaped base 21A in which a groove-shaped material having a U-shaped cross section is formed into a circular shape with its groove member 22 facing inward. The rotating plates 21, 21 are arranged so as to face each other with the center line L as the center, and the connecting frames 23, 23 made of grooved steel are made to face each other with their groove portions 25, 25 facing each other on the facing flanges. It is installed and welded at a position symmetrical with respect to L.

The frame 2 can be rotated by the guide rollers 29 that are pressed against the outer peripheral surfaces of the rotary plates 21. The guide roller 29
Are connected by a rotary shaft 30 that is axially supported by bearing pieces 27 that are erected on the base plate 26. The rotary plate 21 constituting the frame body 2 is axially supported by a frame body 19 which is erected on the base plate 26 and on the one end A side and the other end B side, respectively, and is provided with an outer flange of the rotary plate 21. The pair of pulleys 20 and 20 that are fitted prevent the floating.

The guide roller 29 is a roller with a flange having a flange into which the rotary plate 21 is fitted. The guide roller 29 is a frame 2 with the center line L thereof being horizontal and having a carry-in conveyor 31 and a carry-out conveyor 32. Pivot parallel to the longitudinal axis. Also, the guide roller 29
Are arranged on both sides of a vertical plane including the center line L, respectively. The rotating shaft 30 is driven by an electric motor (not shown) that rotates in a fixed direction.

Further, the frame body 2 is arranged vertically with the center line L interposed therebetween.
A work insertion gap 3 whose both ends are open is provided between the pair of conveyors 36, 36.

The transfer conveyors 36, 36 are rollers installed inside the frame 2 between a pair of partition walls 33, 33 extending in parallel over substantially the entire length of the frame 2 with a gap equal to or larger than the width dimension of the work. 37
, 39, which is a roller conveyor, and forms the transfer surfaces 15, 15 on which the work inserted from one end A can be transferred to the other end B.

The rollers 37, 39 are pivotally supported by the partition walls 33, 33 in parallel with each other at a symmetrical position with the center line L sandwiched between them and a surface facing each other with a gap into which the work can be inserted.

The partition wall 33 has a substantially rectangular shape and is provided with protruding pieces 33B, 33B protruding in the same direction and at right angles to the substrate 33A on both long sides of the substrate 33A pivotally supporting the rollers 37 ,. Then, the substantially U-shaped groove portions are faced to each other and arranged inside the frame body 2.

The partition walls 33, 33 have the respective protruding pieces 33B, 33B as the rotary plate.
It is fixed to the frame body 2 by being fixed to the mounting members 40, 40 which are laid in parallel inside each of 21 ...

The rollers 37, 39, ... are adjacent rollers 37, 37, 39,
One end of 39 is sequentially linked by an endless string 41 such as a belt, and the output shafts of the electric motors M1 and M2 and one roller 37, 39 are connected.
By connecting and using, for example, a belt transmission mechanism, they rotate in the same direction at the same time.

The electric motors M1 and M2 are the protruding pieces 33B and 3 of the partition walls 33 and 33, respectively.
It is fixed to the plate members 42, 42 that are bridged between 3B.

The transfer conveyor 36 located below is horizontal at the stop position of the frame body 2, and the upper surface of the transfer conveyor 36 is aligned with the carry-in conveyor 31. The pair of transfer conveyors 36, 36 constitute the reversing machine 4 together with the frame body 2.

In the vicinity of the reversing machine 4, in this embodiment, the rotary plate 21 on the other end B side.
A detector 5 is provided below.

As shown in FIGS. 1 and 2, the detector 5 pivotally supports a disc 44 having an upper end over the rod on the rod upper side and the unloading side of the cylinder 43, and is constantly rotated by the urging force of the cylinder 43.
The disk 44 is therefore urged toward
The disk 44, which is in contact with the peripheral surface of the rotating plate 21, constitutes a contact piece 6 which rotates with the rotation of the rotating plate 21.

Further, on the peripheral surface of the rotary plate 21, a groove portion into which the disc 44 can be fitted so that the cylinder 43 has the longest stroke at a position in which the work insertion gap 3 is horizontal and is displaced toward the carry-out side.
13 and 13 are engraved in two places.

The groove portion 13 gradually becomes deeper along the rotation direction of the reversing machine 4. Therefore, when the rotary plate 21 rotates, the contact piece 6 is rotated.
A reference surface 9 that is a peripheral surface that does not have a groove portion 13 that holds it at a constant position, and the amount of positional deviation from the reference surface 9 increases as it approaches the stop position of the frame 2 that is continuous with the reference surface 9; The cam surface 10 composed of the groove 13 for moving the contact piece 6 upward by gradually increasing the stroke of 43
And an annulus 7 having

When the contact piece 6 is in contact with the reference surface 9 as shown in FIG. 4 (a), that is, when the cylinder 43 has the shortest stroke, the stroke position is detected by the contact X, and the frame 2 is detected by the output. Rotate at high speed. As shown in FIG. 4 (b), when the cam surface 10 is being contacted, that is, when the cylinder 43 is gradually extending the stroke, the stroke position is detected by the contact Y, and the frame body 2 is detected by its output. Reduce the rotation speed and rotate at a low speed. Further, as shown in FIG. 4 (c), when the cylinder 43 reaches the longest stroke, it is detected by the contact Z and the frame 2 is stopped by the detection output.
A switch for forcibly retracting the rod of the cylinder 43 and rotating the frame 2 again from the stopped state is provided in, for example, a control box (not shown).

The reversing machine 4 is provided on the other end B side of the frame body 2 with the transfer conveyor 36.
Has a pair of stoppers 16, 16 which are movable at right angles to the conveying surface 15 and are arranged upside down on both sides of the work insertion gap 3, that is, at the stop position, and the stop is provided in the vicinity of the reversing machine 4. A pair of actuators 17, 17 having push-up pieces 18 for projecting the contact piece 11 of the tool 16 into the work insertion gap 3 are arranged on both sides of the center line L.

The stop 16 is shown in FIGS. 2 and 3 (a)-(b) at the stop position.
As shown in FIG. 3, the fixing plate 46 is fixed along the mounting member 40 to be mounted on the rotary plate 21, and penetrates the fixing plate 46 at right angles to the both ends of the fixing plate 46 extending inward of the frame 2. And a pair of cylindrical push-up shafts 14, 14 which are fitted into the fixed hollow cylinders 47 and are supported at right angles to the transport surface 15 on both sides of the center line L, and the push-up shafts 14, 14 work insertion gap 3
One end on the side, that is, the abutting piece 11 that is horizontally laid over the upper end and parallel to the fixed plate 46, and the other end of the push-up shafts 14, 14 that is, the horizontal lifting plate 49 that joins the lower ends under the fixed plate 46. Have. The piece 11 has a base body having an L-shaped cross section in which a vertical piece 11B is raised at a right angle from the end of the horizontal piece 11A on the inner side of the frame 2.
A trapezoidal reinforcing piece 11C is provided in the concave portion of the base body.

The lifting plate 49 is a shaped steel material having substantially the same structure as that of the abutting piece 11 and is turned upside down, and at both ends of the horizontal piece 49A, pendants 51 and 51 having a horizontal small plate 50 at the lower end are provided. Mounted. The pendant 51 is, for example, a bolt, the head of which is the small plate 50,
It is formed by suspending with bolts in bolt insertion holes formed at both ends of the lifting plate 49. The spring C is attached by winding the push-up shaft 14 between the cylinder 47 and the lifting plate 49.

Below the spring C, that is, below the small plate 50, and above the base plate 26.
A pair of actuators 17, 17 are arranged side by side.

The actuator 17 has a structure in which, for example, a hard rubber cap 54 is attached to the upper end of a cylinder 53 having a rod protruding upward,
The rubber cap 54 forms the push-up piece 18.

In the stop position, the actuator 17 raises the push-up piece 18 as the cylinder 53 extends. As a result, as shown in FIG. 3B, the lifting plate 49 is pushed up via the small plate 50,
The contact piece 11 connected to the lifting plate 49 is projected at a right angle to the transfer surface 15 and into the work insertion gap 3 to stop the transfer of the work.

The stopper 16 is normally provided with a spring C as shown in FIG.
As a result, the lifting plate 49 is urged so that the contact piece 11 opens the work insertion gap 3. On the other hand, the actuator 17 has a cylinder 53
By pushing down the push-up piece 18 by the reduction of the rod of the stopper 16, the push-up piece 18 and the small plate 50 are pushed down below the lower surface of the small board 50 of the stopper 16.
A gap is provided between the stopper and the stopper 16, which is separated from the stopper 16. Therefore, the stopper 16 and the actuator 17 do not interfere with each other when the frame 2 rotates.

As shown in FIG. 2, a pair of stoppers 16 are provided upside down, and can be moved, that is, raised by the actuators 17 at positions where the frame 2 is stopped every 180 degrees.

〔The invention's effect〕

As described above, in the work reversing device of the present invention, the actuator arranged near the reversing device causes the abutment piece of the stopper to project into the work insertion gap to stop the work transfer. Therefore, the actuator can be installed separately from the frame, and the frame can be rotated only in one direction, so that it is necessary to reverse the work after reversing it like the conventional device. Since the rotation can be omitted, the work cycle can be shortened and the production efficiency can be improved.

The stopper has a pair of push-up shafts arranged on both sides of the center line of the frame with a contact piece at one end and a lifting plate at the other end. Since the pair of push-up shafts and the pair of actuators are arranged on both sides of the line, the abutting piece can be stably and well-protruded into the work insertion gap, and the transfer of the work by the corresponding piece can be stopped. Since the work can be reliably performed even when the work is relatively heavy, the reliability of the device can be improved.

[Brief description of drawings]

1 is a perspective view showing a work reversing device of the present invention, FIG. 2 is a side view showing the other end of the work reversing device, and FIG. 3 (a).
-(B) is a front view which details a stop and an actuator, and FIGS. 4 (a)-(c) is a front view which shows the effect | action of a detector roughly. 2 ... Frame body, 3 ... Workpiece insertion gap, 4 ... Reversing machine, 11 ... Abutting piece, 14 ... Pushing shaft, 15 ... Conveying surface, 16 ... Stopper, 17 ... Actuator, 18 ... Pushing piece, 36 ... Conveying Conveyor, 49 ... Lifting plate, C
… Spring, L… Centerline.

Claims (1)

[Claims] 1. Rotating in one direction about a horizontal center line and
A transfer surface that forms a work insertion gap that is open at both ends across the center line and that is horizontal at the stop position of the frame, and that can transfer the work inserted from one end to the other end in the frame that stops every 0 degrees. A pair of transfer conveyors, and a pair of push-up shafts disposed on both sides of the center line and on the other end side and supported so as to be movable at right angles to the transfer surface, and on the work insertion gap side of the push-up shafts. It has a contact piece that is bridged to one end and a lifting plate that connects the other end of the lifting shaft, and the contact piece opens the work insertion gap by being normally biased by a spring and both sides of the work insertion gap. A reversing machine provided with a pair of stoppers arranged on the both sides of the reversing machine, and the lifting plate of the stopping tool of the frame at the stop position by being raised and arranged on both sides of the center line. Push up This piece protrudes into the work insertion gap A work reversing device comprising a pair of actuators having push-up pieces for stopping the transfer of the work.