JP3194487B2 - Plate cylinder transport device for gravure printing press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate cylinder transport device for transporting a plate cylinder to each printing unit of a gravure printing machine.

[0002]

2. Description of the Related Art As means for exchanging plate cylinders in each printing unit of a gravure printing machine, Japanese Utility Model Publication No. 3-153 is known.
No. 05 plate cylinder changer is known. The supply of the plate cylinder to the plate cylinder exchanging device as described above is generally carried out by a worker conveying the plate cylinder to each printing unit of the gravure printing machine while pushing the cart by hand.

[0003]

However, some plate cylinders have a long width of about 700 to 1000 mm, and the plate cylinder is considerably heavy because it is made of iron. Moreover, since the gravure printing press changes the plate cylinder according to the pattern, the plate cylinder may be changed about 10 times a day when the number is large, and the work of pushing and transporting with a trolley is a very heavy labor.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a means for transporting a plate cylinder by a conveyor to each printing unit of a gravure printing machine, thereby reducing the time required for plate cylinder replacement work. It is in. To achieve this purpose, the plate cylinder to be supplied to the printing unit and the plate cylinder carried out of the printing unit can be held and exchanged simultaneously.
The print Yoo well as arranged a turntable device with two conveyors which each of the two can be independently movable so as to the ability for each printing unit of a gravure printing machine
Carin transports plate cylinders to knit and turntable devices
The printing cylinder transport device of the gravure printing machine was configured such that a transport conveyor for transporting the printing drum between a stock yard where a printing device and a replacement plate cylinder were stored and the turntable device were provided.

[0005]

A new plate cylinder stored in a stock yard is transported by a transport conveyor, and is carried into one of conveyors of a turntable device arranged in each printing unit of the gravure printing machine, and is removed from each printing unit. The old plate cylinder is carried into the other conveyor of the turntable device. Then, the transport path is switched by the rotation of the turntable device, and a new plate cylinder held on one of the conveyors is loaded into each printing unit, mounted thereon, and the plate cylinder is replaced. The old plate cylinder that has been replaced is transported to a stock yard by a transport conveyor, and is appropriately unloaded.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a gravure printing machine provided with a large number of printing units 2. Each printing unit 2 includes a plate cylinder, an impression cylinder,
The paper or film 4 fed from the roll 3 is overprinted one by one in each printing unit 2, and the paper or film 4 on which various colors are combined and printed is finally rolled. Wound 5 The present invention relates to a plate cylinder transport device for transporting a plate cylinder to each printing unit 2 of the gravure printing machine 1 described above.

As shown, a turntable device 10 is provided for each printing unit 2 of the gravure printing machine 1. Between each of the turntable devices 10 and each of the printing units 2, there is provided a carrying device 11 for moving a plate cylinder between the turntable device and a plate cylinder changing device provided in the printing unit 2. Reference numeral 12 denotes a stock yard where a replacement plate cylinder is stocked. A transport conveyor 13 for transporting the plate cylinder is provided between the stockyard 12 and the turntable device 10. The transport conveyor 13 includes a long conveyor disposed between the stockyard 12 and the turntable device 10, and each turntable device 10.
There are short conveyors located between each other. FIG. 2 is a perspective view of the plate cylinder 14 transported by the plate cylinder transport device of the present invention. The plate cylinder 14 is conveyed while being placed on a pallet 15 as shown.

First, a description will be given of a stock yard 12 in which a replacement plate cylinder is stocked. FIG. 3 is a front view of the stock yard 12, and FIG. 4 is a plan view. Reference numeral 20 denotes a chain conveyor wound around a driving sprocket 21 and a driven sprocket 22. The drive sprocket 21 is rotated by the operation of the motor 23 and the chain conveyor 20 is rotated.
Moves around. Pallets 1 arranged on the upper surface of the chain conveyor 20 so as to be orthogonal to the traveling direction of the conveyor.
The plate cylinder 14 is placed on the conveyor 5 and the chain conveyor 20 is rotated by the operation of the motor 23 to move the plate cylinder 14 on the conveyor. As will be described later, the plate cylinder 1 is held against the stockyard 12 by a hoist crane.
4 is supplied, and the chain conveyor 2
Guides 24 for regulating the supply position of the plate cylinder 14 are provided on both sides of the cylinder 0. Chain conveyor 2 as above
On one end side of 0 (on the side close to the driven sprocket 22), a loading / unloading device 30 for inserting and removing the plate cylinder 14 with respect to the stock yard 12 is arranged.

FIG. 5 is a front view of the loading / unloading device 30.
Reference numeral 31 denotes an elevating frame which is attached above the support frame 32 via a guide 33 so as to be able to move up and down. The piston rod 35 of the cylinder 34 fixed to the support frame 32 is connected to the lower surface of the elevating frame 31, and the elevating frame 31 moves up and down by the expansion and contraction operation of the cylinder 34. On the upper surface of the lifting frame 31, a roller conveyor 3 composed of a number of rollers 36 is provided.
7 are provided. Each roller 36 is connected to the lifting frame 31
It rotates by the operation of the motor 38 fixed inside. The transport direction by the rotation of each roller 36 is orthogonal to the transport direction by the chain conveyor 20 described above with reference to FIGS. As described above, when the plate cylinder 14 supplied to the pallet 15 on the chain conveyor 20 is conveyed to the position of the loading / unloading device 30 in the stock yard 12, the elevating frame 31 is raised by the extension operation of the cylinder 34. , The plate cylinder 14 on the chain conveyor 20 and the roller conveyor 37 together with the pallet 15
Is to be received. After being received by the roller conveyor 37 in this way, the plate cylinder 14 is transported to the right in FIG. 5 together with the pallet 15 by the operation of the motor 38 and supplied to the next transport conveyor 13.

FIG. 6 is a plan view of the conveyor 13.
FIG. 7 is a front view. Above the frame 40 there are a number of rollers 41. These rollers 41 are rotated by the operation of a motor 42 provided inside the frame 40. Guide plates 43 are provided on both sides of the roller 41 to guide the pallet 15 and maintain the conveying posture of the plate cylinder 14. The transport conveyor 13 as described above includes a conveyor having a short length as shown in FIG. 6 and a long conveyor as shown in FIG. 8, and each of them is constituted by a roller conveyor capable of transporting the plate cylinder 14. .

Next, the turntable device 10 will be described. FIG. 9 is a plan view of the turntable device 10, and FIG. 10 is a front view. Reference numeral 50 denotes a turntable, which is attached to a rotating shaft 51 provided below the apparatus. Motor 5
2 through the reduction gear 53 and the chain 54
1 to rotate the turntable 50. Reference numeral 55 denotes a roller for supporting the lower surface of the turntable 50, and a proximity switch 56 for detecting the rotation stop position of the turntable 50 is disposed right beside the roller 55. Turntable 5 as above
The upper surface of the roller 2 is composed of a plurality of rollers 58 on the upper surface.
Two conveyors 59, 60 are provided in parallel. The rollers 58 of the conveyors 59 and 60 are connected to the turntable 5
The motor 61 is rotated by the operation of a motor 61 fixed to the upper surface of the motor. 62 is a conveyor 59,
This is a stopper for stopping the advance of the plate cylinder 14 carried into 60. The stopper 62 moves up and down by operation of the cylinder 63.

Next, the carrying device 11 will be described. FIG. 11 is a front view of the carrying device 11, and FIG. 12 is a plan view. Numeral 70 denotes a carrying cart, which runs on a tire 72 along a rail 71 laid on the floor. A piston rod 74 of a cylinder 73 fixed to the floor surface is attached to the carrying cart 70, and the carrying cart 70 is moved by the expansion and contraction operation of the cylinder 73 at a position shown by a solid line 70a in FIG. 11 and a dashed line 70b in FIG. It is configured to reciprocate to the position shown. When the cylinder 73 is shortened, the solid line 7
0a, the carriage 70 retracts to a position very close to the turntable device 10, and conversely, the cylinder 7
When the trolley 3 is extended, the carrying cart 70 is located at the position of the one-dot chain line 70b and the printing carriage 2 of the gravure printing machine 1
It is designed to advance to the position right next to. A large number of rollers 7 are provided above the carrying cart 70 as described above.
5 is provided. Each roller 75 of the conveyor 76 is rotated by the operation of the motor 77. As shown in FIG. 12, a proximity switch 78 for detecting that the plate cylinder 14 has been moved to a predetermined position by the roller conveyor 76, and a pallet 15
A pin 79 is provided for fitting into a hole (not shown) provided on the lower surface of the printer and for suppressing the movement of the plate cylinder 14. Pin 79
Are projected by a cylinder 80.
In addition, pallets 15 are provided on both sides of the roller conveyor 76.
And a guide plate 81 for guiding the plate cylinder 14 to maintain the attitude of the plate cylinder 14. In the figure, reference numeral 82 denotes a driving shaft of the printing press. As shown, the turntable device 10 is disposed outside the printing press with respect to the driving shaft 82, and the carrying device 11 is connected to the printing press with respect to the driving shaft. Is arranged inside of the drive shaft 82 so that the plate cylinder 14 can be exchanged on both sides of the driving shaft 82 without interfering with the shaft.

[0013] In the transport device constructed as described above, first, a new plate cylinder 14 suspended by the hoist crane 85 is supplied to the stock yard 12 as shown in FIG. The same number of pallets 15 as the plate cylinders 14 are placed in the stock yard 12 in advance. The plate cylinders 14 are arranged and supplied on these pallets 15 while being regulated by the guides 24 described with reference to FIGS. . When the new plate cylinder 14 thus supplied to the stock yard 12 is conveyed to the position of the loading / unloading device 30 at the end of the conveyor by the circumferential movement of the chain conveyor 20, the cylinder 34 described with reference to FIG. 31, the plate cylinder 14 on the chain conveyor 20 is moved to the pallet 15
Together with the roller conveyor 37 of the loading / unloading device 30. Then, the motor 38 is operated to convey the plate cylinder 14 together with the pallet 15 by the roller conveyor 37 and deliver it to the next conveyor 13. The new plate cylinders 14 thus transferred are sequentially transported by the transport conveyor 13 as shown in FIG.

Next, when the plate cylinder 14 is transported to the position of the conveyor 59 of the predetermined turntable device 10, FIG.
The stopper 62 described with reference to FIG. 10 rises and stops the advance of the plate cylinder 14. Thus, as shown in FIG. 15, the new plate cylinder 14 is moved to the conveyor 59 of the turntable device 10.
Is stopped on the The steps up to the supply of a new plate cylinder 14 to each turntable device 10 as described above can be performed in advance during the operation of the gravure printing machine. When the new plate cylinder 14 is supplied to the turntable device 10 in this manner, the operation of the motor 52 described with reference to FIG. 10 causes the turntable 50 to start rotating as shown in FIG. Thus, the turntable 50 rotates 270 ° in the counterclockwise rotation direction, and stops rotating at a position where the conveyor 60 of the turntable device 10 and the roller conveyor 76 of the carrying cart 70 are aligned. Also,
In the printing unit 2, the automatic discharge of the ink pan and the automatic ink circulation device is performed. Then, while the turntable 50 is rotating as described above, the carrying cart 70 advances to the position of the printing unit 2 of the gravure printing machine 1 by the extension operation of the cylinder 73 described in FIG. The state shown in FIG. The pallet 15 is placed on the carrying cart 70 in advance. Then, the old plate cylinder 14 ′ which has been used so far is moved by the arm 86 of the plate cylinder changing device provided in the printing unit 2.
Is taken out. Then, as shown in FIG. 17, the taken out old plate cylinder 14 'is transferred onto the pallet 15 placed on the roller conveyor 76 of the carrying cart 70.

When the old plate cylinder 14 'is received by the carrying carriage 70 in this manner, the cylinder 73 described with reference to FIG. 11 is shortened again, and as shown in FIG.
0 retreats close to the turntable device 10. Then, the roller conveyor 76 of the carrying cart 70 and the conveyor 60 of the turntable device 10 are simultaneously operated to remove the old plate cylinder 14 'from the conveyor 60 of the turntable device 10.
Draw in. When the old plate cylinder 14 'is drawn in, the stopper 62 described with reference to FIGS. 9 and 10 is raised in advance. In this way, as shown in FIG. 19, both the new plate cylinder 14 and the old plate cylinder 14 'are provided on the turntable device 10 with the two conveyors 59 and 60.
It will be in the state of being held on.

Next, the turntable 50 is rotated clockwise by 180 °, and as shown in FIG.
The rotation stops at a position where the conveyor 59 holding the roller and the roller conveyor 76 of the carrying cart 70 are aligned. Next, the conveyor 5 of the turntable device 10
9 and the roller conveyor 76 of the carrying carriage 70 are operated simultaneously, and as shown in FIG.
Moves onto the roller conveyor 76 of the carrying cart 70. Thus, the new plate cylinder 14 is transferred to the roller conveyor 7.
Proximity switch 7 indicates that it has been moved to a predetermined position on
When the detection is made at step 8, the pins 79 described with reference to FIG. 12 project and fit into the holes on the lower surface of the pallet 15, and the movement of the plate cylinder 14 is suppressed.

When the new plate cylinder 14 is thus held on the roller conveyor 76, the cylinder 73 described with reference to FIG. 11 is extended and the carrying carriage 70 advances again to the position of the printing unit 2 of the gravure printing machine 1. And
As shown in FIG. 22, the arm 86 of the plate cylinder changing device provided in the printing unit 2 swings to pick up a new plate cylinder 14 from the carrying cart 70 and mount it on the printing unit 2. Next, the ink pan and the automatic ink circulation device are returned to the printing unit 2. Thus, the operation of exchanging the plate cylinder is completed, and the printing press enters the next printing process.

On the other hand, the turntable 50 on which the used old plate cylinder 14 'is mounted is provided with the motor 52 shown in FIG.
As a result, the conveyor 60 and the conveyor 13 of the turntable device 10 stop rotating at a position where they are aligned as shown in FIG. Then, the conveyor 60 of the turntable device 10 and the transport conveyor 13 rotate simultaneously, and thus the used old plate cylinder 14 'is removed from the transport conveyor 13 as shown in FIG.
Is transported in the direction of returning to the stockyard 12. Thus, the old plate cylinders 14 sequentially returned to the stock yard 12 via the loading / unloading device 30 are suspended by the hoist crane 85 and appropriately carried out.

[0019]

According to the present invention, the plate cylinder can be transported by the conveyor to each printing unit of the gravure printing machine.
The time required for the exchange work of the plate cylinder can be significantly reduced. In addition, since the exchange operation of the plate cylinder can be completed in a relatively short time, there is an advantage that productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a gravure printing machine equipped with a plate cylinder transport device of the present invention.

FIG. 2 is a perspective view of a plate cylinder.

FIG. 3 is a front view of a stockyard.

FIG. 4 is a plan view of a stockyard.

FIG. 5 is a front view of the access device.

FIG. 6 is a plan view of a conveyor.

FIG. 7 is a front view of a conveyor.

FIG. 8 is a plan view of a long conveyor.

FIG. 9 is a plan view of a turntable device.

FIG. 10 is a front view of the turntable device.

FIG. 11 is a front view of the carrying device.

FIG. 12 is a plan view of the carrying device.

FIG. 13 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 14 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 15 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 16 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 17 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 18 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 19 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 20 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 21 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 22 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 23 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 24 is a diagram illustrating the operation of the plate cylinder transport device.

FIG. 25 is a diagram illustrating the operation of the plate cylinder transport device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gravure printing machine 2 Printing unit 10 Turntable device 12 Stockyard 13 Conveyor 14 Plate cylinder

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Claims (1)

(57) [Claims] 1. A plate cylinder for supplying to a printing unit and a plate cylinder carried out of the printing unit are held and exchangeable at the same time.
The printing unit with the turntable apparatus having a conveyor, each two can independently movable so as to the ability to place each for each printing unit of a gravure printing machine
Carrying device that transports the plate cylinder to the machine and turntable device
And the plate cylinder plate cylinder conveying device gravure printing press formed by providing a conveyor for conveying the plate cylinder between the stockyard and <br/> turntable device which is stock for replacement.