JPS6143793Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a residual core collecting device for collecting residual core from a paper feeding device of a rotary printing press.

In the paper feeding device of a rotary printing press, the conventional method for automatically collecting the remaining core after splicing is shown in Figures 1 and 2.
What is proposed is shown in the figure. In the device shown in FIG. 1, after paper splicing, the support arm 2 rotates and comes to the illustrated position. A traverser 6 having a trolley 7 loaded with a web 8 to be installed next runs on a rail 9 and stops at the position shown in the figure, and the remaining core receiving portion 2 of the remaining core collecting device 5
0 rises, and when the limit switch provided in the remaining core receiving portion 20 is pushed in by the remaining core 4, a rising stop command is issued and the rising stops. At the same time, the chucking device 22 of the support arm 2 moves back, and the remaining core 4 is released and transferred onto the remaining core receiving member 20, and then the remaining core receiving member 20 is lowered. After attaching the web 8 on the trolley 7 to the support arm 2, the remaining core 4
is delivered to the empty trolley 7, and the trolley 7 runs away from the work area.

During paper splicing, even if the running paper is cut and braking is applied immediately after cutting, it rotates somewhat, so the remaining core 4 is unwound and the paper is left hanging. Therefore, if this remaining core is collected using the device shown in Figure 1,
Unraveled paper gets caught in surrounding equipment or is scattered around the area where it was torn, which requires work to dispose of it, and it is also difficult to transfer the paper from the remaining core collection device to the trolley because the unraveled paper gets in the way. There are drawbacks.

In the device shown in FIG. 2, the chucking device 22 retreats while the support arm 2 is rotating to the chucking position after paper splicing, causing the remaining core 4 to fall onto the rail 9. A traverser 6 carrying a new web 8 travels on a rail 9. At that time, Traversa 6
A fork 5a installed at the front of the machine scoops up and holds the remaining core 4 on the rail, and after attaching the web 8 to the support arm 2, the remaining core 4 is transferred to an empty trolley 7, which then takes it out of the working area. It is something.

However, even in this device, the unrolled remaining core 4 dropped onto the rail 9 after paper splicing is covered with the unrolled paper 11, and is caught by the advancing traverser 6. When the fork 5a used to collect the remaining cores pierces the paper and passes it onto the trolley 7, the paper may be torn and scattered around the area, or even after being placed on the trolley 7, the fork 5a is still catching the paper and the paper is being held up by the trolley 7. When carrying out, there is a risk that the remaining core 4 may fall off or the transfer may not go well.

Due to the above-mentioned drawbacks, in reality, the unrolled paper 11 is rewound by an operator and then collected by the remaining core collecting devices 5, 5a.

The present invention includes a remaining core receiving part that is supported by the main body so as to be movable up and down and receives the remaining core from the support arm, and a rewinding mechanism that rotates the remaining core provided on the upper surface of the remaining core receiving part. The object of the present invention is to provide a residual core collection device for a rotary printing press that eliminates the above-mentioned conventional drawbacks and allows the residual core collection work to be carried out smoothly without the use of human hands. It is.

The present invention is constructed as described above, and when the remaining core receiving section rises to receive the remaining core, the rewinding mechanism provided on the top surface of the remaining core receiving section operates to rotate the remaining core. After unwinding the unrolled paper, the remaining core is carried out.

In this way, according to the present invention, the unrolled paper can be rewound at the time when the remaining core receiving section receives the remaining core, so the unraveled paper will not be scattered around when collecting and transporting the remaining core. , there is no need for cleaning work, and the work can be done smoothly.

The present invention will now be described in detail with reference to the most preferred embodiment shown in FIGS. 3-5. In the figures, the same reference numerals as above indicate similar parts. The support arm 2 supported by a main shaft 3 capable of forward and reverse rotation is provided with a chucking device 22 for supporting the web 8 at each arm end. The bearing arm 2 is
It is rotated by a turning device 24 and includes an operating piece 25 and a detector 26 (limit switch, etc.) for positioning at a predetermined position (remaining core collection position 10 chucking position, etc.). Support arm 2
The remaining core collecting device 5 provided directly below the remaining core collecting position 10 is composed of a remaining core receiving section 20 that receives the remaining core 4 and a lifter section 19 that raises and lowers the remaining core receiving section 20. The remaining core receiving portion 20 includes a roller 12 whose portion for rotating the unwound remaining core 4 protrudes from the upper surface of the remaining core receiving portion 20, a bracket 14 that supports the roller 12, and a bearing 27 that supports the bracket 14. and a spring 15 that presses the roller 12 upward.
, a detector 16 (limit switch, proximity switch, etc.) that outputs a signal that the roller 12 comes into contact with the remaining core 4 and is pushed down to stop the rise, and the roller 1
2, a residual core receiving arm 17 provided on the upper surface of the residual core receiving portion 20, and a fluid pressure cylinder (not shown) for operating the arm 17. The lifter section 19 is composed of a fluid pressure cylinder 21 and a fluid pressure unit that generate lifting force, and a link 18 that supports the remaining core receiving section 20. A control device is provided which causes the support arm 2 to stop rotating, the remaining core collecting device 5 to move up and down, the remaining core 4 to rewind, the chucking device 22 to retreat, and the remaining core 4 to be delivered.

This embodiment is constructed as described above, and upon receiving the paper splicing completion signal, the support arm 2 rotates, and the actuating piece 25 acts on the detector 26 (limit switch, proximity switch, etc.) at the remaining core collection position 10. and stop. The remaining core recovery device 5 provided directly below the stopped support arm 2 starts to rise at the same time as the support arm 2 stops rotating. The lifting of the remaining core receiving portion 20 is stopped when the remaining core rewinding roller 12 comes into contact with the remaining core 4 and is pushed in, and the roller support bracket 14 acts on the detector 16 (limit switch, proximity switch, etc.).

At this time, the pressing force of the remaining core unwinding roller 12 against the remaining core 4 is set to a magnitude that allows the remaining core 4 to rotate by the spring 15. Immediately after the lifting stops, the rewinding roller 12 starts rotating by the force of the motor 13, and rewinds the paper 11 from which the remaining core 4 has been unwound. The operating time of the motor 13 can be adjusted by a timer depending on the length of the unwound paper. After the rewinding is completed, the chucking device 22 retreats, detaches from the remaining core 4 and the support arm 2, and falls into the remaining core receiving part 20.
The remaining core collecting device 5 begins to descend. The support arm 2 from which the remaining core 4 has been removed rotates to the mounting position, and the web 8 on the trolley 7 is mounted. After installation is complete,
The remaining core 4 is transferred from the remaining core recovery device 5 to the empty trolley 7, and the remaining core 4 is carried out by the trolley 7.

In this way, according to this embodiment, the unraveling of the remaining core that occurs during paper splicing can be rewound by rotating the remaining core with the roller provided in the remaining core receiving section. The unraveled paper will not be torn and scattered around, and the work of unwinding and cleaning the scattered paper will not require manpower, and the work of collecting and transporting the paper can be carried out smoothly.

Next, a second embodiment shown in FIGS. 6 and 7 will be described. In this embodiment, an unwinding roller 12 is provided protruding from the end of the remaining core receiving part 20, and contacts a rotating roller 23 provided at the shaft end of the chucking device 22 to rotate the roller 23. The remaining core is turned and rewound, and the other configurations, functions, and effects are the same as those of the first embodiment.

A third embodiment shown in FIGS. 8 and 9 will be described. In the first and second embodiments, the remaining core was attached to the support arm and rotated, but in this embodiment, the remaining core is removed from the support arm and rotated. The arm 17 that is swingably attached to the remaining core receiving part 20 receives the remaining core 4 that has been removed from the support arm 2, and then the arm 17
is swung by a fluid pressure cylinder to press the remaining core 4 onto the unwinding roller 12, and then the unwinding roller 12 is rotated to rewind the unraveled paper 11.

In this embodiment, in addition to the effects of the first embodiment,
Since the remaining core is unwound and rewound after being removed from the support arm, the support arm can be moved to the chucking position during that time, which has the effect of shortening the time required to attach the web.

In the first to third embodiments, the remaining core collecting device is fixedly provided below the remaining core collecting position of the support arm, but the device is not limited to this, and can be moved on a traverser. It's okay.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a schematic configuration of a conventional residual core collecting device, FIG. 2 is a front view showing a schematic configuration of another conventional residual core collecting device, and FIGS. 3 to 5 are a front view showing a schematic configuration of a conventional residual core collecting device. FIG. 3 is a front explanatory view showing a schematic structure of a paper feed section of a rotary printing press, FIG. 4 is a perspective view showing a schematic structure of the whole, and FIG. 5 shows a part of FIG. An enlarged vertical sectional view, FIGS. 6 and 7 show a second embodiment of the present invention, FIG. 6 is a perspective view showing the overall schematic structure, and FIG. 7 shows a part of FIG. 6. The enlarged longitudinal sectional view, FIGS. 8 and 9 are the third views of the present invention.
FIG. 5 is a sectional view illustrating an embodiment and showing the same portion as FIG. 5 above.

Claims (1)

[Scope of utility model registration request] It is characterized by comprising a remaining core receiving part that is supported by the main body so as to be movable up and down and receives the remaining core from the support arm, and a rewinding mechanism that rotates the remaining core provided on the upper surface of the remaining core receiving part. Remaining core collection device for rotary printing presses.