Information
-
Patent Grant
-
6764040
-
Patent Number
6,764,040
-
Date Filed
Friday, April 12, 200222 years ago
-
Date Issued
Tuesday, July 20, 200420 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Matecki; Kathy
- Kim; Sang K
Agents
- Birch, Stewart, Kolasch & Birch, LLP
-
CPC
-
US Classifications
Field of Search
-
International Classifications
-
Abstract
In the case where the width of a web roll for the next job is much different from that of the web roll for the former job, the rotational position of the new web roll is moved to a position at which a web of the new roll is easily pasted to the web of the old roll and the new web roll is held at the position. A device for continuously supplying a web can continuously supply the web by adhering the web of an old web roll onto the web of the new web roll. The device includes a manual paper paster setting means for setting a manual paper paster mode and a control device for locating/stopping the rotational position of the new web roll at an adhering waiting position in response to a signal from the manual paper paster setting means.
Description
The entire disclosure of Japanese Patent Application No.2001-114860 filed on Apr. 13, 2001 including specification, claims, drawings and summary is incorporated herein by reference in its entirety.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for controlling a device for continuously supplying a web member and a device therefor.
2. Prior Art
In a conventional web rotary printing machine, when a former job is shifted to a new job, a web paster is operated automatically if the width of a new web roll is the same as that of a former web roll.
On the other hand, if the width of a new web roll is much narrower than that of the former web roll, problems are apt to occur. Therefore, considerable time and manual effort by the operator are needed to switch the former job to the next job.
A purpose of the present invention is to provide a method for controlling a device for continuously supplying a web so as to resolve the above drawbacks and a device therefor by moving the rotational position of a new web roll into a position where the new web roll is preferably paper-pasted and kept in a good condition if the width of the web for the new job is much narrower than that for the former job.
SUMMARY OF THE INVENTION
In a control method according to the present invention for controlling a device for continuously supplying a web by adhering the web of an old web roll to the web of the new web roll, a first aspect of the present invention is a step of locating the rotational position of the new web roll at an adhering waiting position in response to a signal from a manual paper pasting setting means for setting a manual paper pasting mode according to the present invention.
A second aspect of the control method according to the present invention is a step of switching on the manual paper pasting setting means under a condition in which an automatic paper pasting operation is likely to cause problems such as in the case where the width of the web of the new roll is much narrower/wider than the width of the web of the old roll or in the case where the material of the web of the new roll is different from the material of the web of the old roll.
A third aspect of the control method according to the present invention is a step for reducing the rotational speed of the printing press in response to the signal from the manual paper pasting setting means.
A fourth aspect of the control method according to the present invention is a step of adhering the web of the old web roll onto the web of the new web roll in response to a signal from a switch for adhering the web of the old web roll onto the web of the new web roll.
A fifth aspect of the control method according to the present invention is a step for cutting the web being unwound from the old web roll in response to a signal from a switch for cutting the web being unwound from the old web roll.
Regarding a control device of the present invention for controlling a device for continuously supplying a web by adhering the web of an old web roll onto the web of a new web roll, a feature of the control device according to the present invention is a means for setting a manual paper pasting mode and a control device for stopping the rotational position of the new web roll at an adhering waiting position in response to a signal from the means for setting a manual paper pasting mode.
Regarding the control device according to the present invention, another feature of the present invention is the provision of a switch means for adhering the web of the old web roll onto the web of the new web roll and means for adhering the web of the old web roll onto the web of the new web roll.
Regarding the control device according to the present invention, another feature of the present invention is the provision of a switch means for cutting the web being unwound from the old web roll in response to a signal from the switch.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
shows a schematic side view of an offset rotary printing press, wherein the present invention is applied.
FIG. 2
shows one embodiment of a device for continuously supplying a web to an offset rotary printing press according to the present invention.
FIG. 3
shows a block diaphragm of a control for the embodiment of the device for continuously supplying a web to an offset rotary printing press according to the present invention.
FIG.
4
and
FIG. 5
are flowcharts for showing the steps of the method of the present invention for switching an automatic paper pasting mode and a manual paper pasting mode in a method for continuously supplying a web to an offset rotary printing press.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
A control method for continuously supplying a web to an offset rotary printing press according to one embodiment of the present invention and a device therefor are shown in
FIGS. 1 through 3
.
The embodiment is suitable for an offset rotary printing machine as shown in FIG.
1
.
A web member
1
, continuously supplied from a continuously supplying web device
100
(hereinafter, it is referred as “web
1
”) is individually printed in each printing unit
200
through which the web
1
is passed. Then, the web
1
is heated and dried in a drying machine
300
. The web
1
is cooled in a cooling machine
400
. When the web
1
is being passed through a web passing device
500
, the tension applied to the web
1
and the travel direction of the web
1
are controlled. After passing through a dragging device
600
, the web
1
is cut and folded by a folding machine
700
so as to be formed into a desired shape.
FIG. 3
shows a control device for continuously controlling the devices
200
through
700
.
In the controlling device, an input device
71
, a display device
72
and an output device
73
are each connected to a CPU
10
through an I/O device, respectively. A ROM
70
, a RAM
80
, a memory
81
for an adapted position of a press roller and a memory
82
for cutter position of the press roller and a memory
83
for a waiting position of a new roller are each connected to the CPU
10
, respectively. A detector
111
for detecting a double sided tape is connected to the CPU
10
through an I/O device
84
.
With reference to the flow charts described below and as shown in FIG.
4
and
FIG. 5
, the control device controls a printing press motor driver
20
, a printing machine driving motor
21
, a Frequency-Voltage Converter
22
, a rotary encoder
23
, a turret arm rotating motor driver
30
, a turret arm driving motor
31
, a counter
32
, a rotary encoder
33
, a new roll motor driver
40
, a new roll driving motor
41
, a counter
42
, a Frequency-Voltage Converter
43
, a rotary encoder
44
, a press roller attaching/detaching device
50
, a cutter moving device
60
and a paster head moving device
65
.
Regarding the control device, the present specification mainly describes the switching operation of an automatic web pasting and a manual web pasting in the device for continuously supplying a web
100
. The description about the other conventional control operations is omitted.
In the device for continuously supplying a web
100
as shown in
FIG. 2
, a turret arm
102
is pivotally provided at a body
101
. Web rolls
103
and
104
are attached to the opposite ends of the turret arm
102
, respectively. When a web
1
is almost finished being wound off from the web roll
103
, another web
1
from the web roll
104
is pasted to the web
1
from web roll
103
so as to pass a web through the printing unit
200
continuously.
FIG. 2
shows a condition in which the old web roll (hereinafter, it is referred as “old roll”)
103
is almost finished and a new web roll (hereinafter, it is referred as “new roll”)
104
is moved to a paper pasting position by rotating the turret arm
102
.
The turret arm
102
is rotated by the turret arm rotating motor
31
in accordance with an ON signal from a paper pasting start switch (not shown) through the turret arm rotating motor driver
30
as shown in FIG.
3
.
The rotational angle of the turret arm
102
is detected by the rotary encoder
33
and is totally counted by the counter
32
.
In the turret arm
102
, a pre-driving device for rotating the rolls
103
and
104
is installed. The pre-driving device previously accelerates a surface speed of the new roll
104
which has been moved to the paper pasting position to the traveling speed of the web
1
.
In
FIG. 3
, the new roll driving motor
41
is provided as a pre-driving device for driving the new roll
104
and controlled through the new roll driving motor driver
40
.
The rotational speed of the new roll
104
is detected as a voltage value through the Frequency-Voltage Converter
43
by the rotary encoder
44
.
In the body
101
, the paster head
106
is movably provided along an oblique direction in the drawing of FIG.
2
. The paster head
106
can be obliquely moved from a detached position as shown as by dotted lines in
FIG. 2
to an attached position as shown in solid lines in
FIG. 2
with respect to the new roll
104
which has been moved to the paper paster position.
When the paster head
106
is moved to the attached position, the web being unwound from the old roll
103
is fed through a gap between the new roll
104
and the paster head
106
and over a plurality of rollers
112
and
113
.
In the paster head
106
, a fixed roller
107
and a press roller
108
are provided. The press roller
108
can be protruded from an air cylinder
116
so as to be actuated as a press roller attaching device
50
. Further, a cutter
109
is attached to the paster head
106
. The cutter
109
is extendable from a cutter moving device
60
, such as an air cylinder.
In the paster head
106
, a double sided tape detector
111
is provided for detecting a double sided tape
110
, attached at the front end of the new web
104
.
In the device for continuously supplying a web
100
, there may be some problems when the device
100
is operated in an automatic paper paster mode if the width of the web
1
of the old roll
103
is much narrower than that of the web
1
of the new roll
104
. Even if the width of the web of the new roll
104
and that of the old roll
103
are the same, there may still be some problems if the material of the new roll
104
is different from that of the old roll
103
.
In the present invention, a manual paper paster starter switch is provided as means for setting a manual paper paster operation. In response to an ON signal from the manual paper paster starter switch, the control device described above is operated in accordance with the flow chart as shown in FIG.
4
and
FIG. 5
so as to stop the rotating position of the new roll
104
at an adhering waiting position.
As shown in
FIG. 4
, the paper paster start switch is first turned on (step S
1
). A turret arm rotating motor is rotated so as to rotate the turret arm
102
(step S
2
).
Then, the new roll
104
held by the turret arm
102
is moved to a paper pasting position (step S
3
). The turret arm rotating motor then is stopped (step S
4
).
The rotational angle of the turret arm
102
is detected by the rotary encoder
33
and is totally counted by the counter
32
. Next, the paster head moving device
65
is actuated so as to move the paster head
106
to an attaching position (step S
5
).
When the manual paper paster start switch is not turned on, that is, when it is turned off (step S
6
), the new roll driving motor
41
is rotated if the width of the web
1
of the old roll
103
is substantially the same as that of the new roll
104
(step S
7
).
When the peripheral surface speed of the new roll
104
is not equal to the traveling speed of a web
1
being unwound from the old roll
103
(step S
8
), the rotational speed of the new roll driving motor
41
controls the rotational speed of the new roll
104
so as to adjust the peripheral surface speed of the new roll
104
to be equal to the traveling speed of the web
1
being unwound from the old roll
103
(step S
9
).
The double sided tape detector
111
detects a double sided tape
110
(step S
10
). When the rotational position of the new roll
104
is located at an ON position of the press roller
108
as stored in the press roller attaching position memory
81
(step S
11
), the press roller attaching/detaching device
50
is moved to its attaching position so as to move the press roller
108
to its attaching position (step S
12
) where the web
1
of the old roll
103
is adhered on a web
1
of the new roll
104
with the double sided tape
110
.
When the rotational position of the new roll
104
is located at an ON position of the cutter
109
as stored in the cutter ON position memory
82
(step S
13
), the cutter moving device
60
is moved to its cutting position so as to move the cutter
109
to its cutting position (step S
14
), where the web
1
from the old roll
103
is cut and the old roll
103
is moved to a detaching position (step S
15
).
When the press roller attaching/detaching device
50
is moved to its detaching position (step S
16
), the new roll driving motor
41
is stopped (step S
17
) and the paster head
106
is moved to its detaching position (step S
18
).
On the other hand, when the manual paper paster start switch is turned on, the rotational speed of the printing press is slowed (step T
1
) and the new roll driving motor
41
is rotated (step T
2
) unless it is a preferable condition for paper-pasting the old roll
103
and the new roll
104
.
The rotational speed of the printing press is checked by detecting the rotational speed of the printing press driving motor
21
by the rotary encoder
23
.
Then, the double sided detector
111
detects the double sided tape
110
(step T
3
). When the rotational position of the new roll
104
is located at a waiting position of the new roll
104
as stored in the new roll waiting position memory
83
(step T
4
), the new roll driving motor
41
is stopped (step T
5
).
When the press roller attaching switch is turned on (step T
5
), the press roller attaching/detaching device
50
is moved to its attaching position (step T
7
).
The press roller attaching switch is actuated for adhering a web
1
of the old roll
103
on a web
1
of the new roll
104
. In response to a signal from the press roller attaching switch, the press roller attaching/detaching device
50
is moved to its attaching position so that the web
1
being unwound from the old roll
103
can be pressed onto a peripheral surface of the new roll
104
by the press roller
109
. Thereby, the new roll
104
is also rotated and the web
1
of the old roll
103
is adhered to the web
1
of the new roll
104
via the double sided tape
110
.
When a cutter extending switch is turned on (step T
8
), the cutter
109
is moved to its cutting position by the cutter moving device
60
(step T
9
) and then moved to its detaching position (step T
10
).
The cutter extending switch is actuated so as to cut the web
1
which is being unwound from the old roll
103
. In response to a signal from the cutter extending switch, the web
1
being unwound from the old roll
103
is cut by the cutter
109
.
In the next step, the press roller attaching/detaching device
50
is moved to its detaching position (step T
11
), the rotational speed of the printing press is increased to normal and the paper paster is moved to the exterior of the body
101
(step T
12
).
As described above, in the embodiment according to the present invention, if the width of the web
1
of the old roll
103
is substantially the same as that of the web
1
of the new roll
104
and the manual paper paster start switch is turned off, the web
1
of the old roll
103
can be continuously pasted onto the web
1
of the new roll
104
similar to a conventional device for continuously supplying a web.
Further, in the embodiment according to the present invention, if the width of the web
1
of the old roll
103
is much narrower than that of the web
1
of the new roll
104
and the manual paper paster start switch is turned on, the rotational position of the new roll
104
can be positioned at the adhering waiting position so that problems with the paper pasting operation can be avoided.
After positioning the rotational position of the new roll
104
at the adhering waiting position, a paper pasting operation can be continued by turning on the press roller attaching switch and the cutter extending switch.
When the press roller adhering switch is turned on, the web
1
of the old roll
103
is adhered to the web
1
of the new roll
104
by moving the press roller attaching/detaching device
50
to its attaching position so that the web
1
being unwound from the old roll
103
can be cut by turning on the cutter extending switch.
Although an operator manually moves the rotational position of the new roll to a paper pasting position in the conventional art, such a manual operation is unnecessary in the embodiment according to the present invention.
In the specification, a manual paper pasting is different from that conducted in the conventional art. The manual paper pasting of the present invention means turning on a manual paper paster start switch so as to locate the rotational position of the new roll
104
at its adhering waiting position. After that, the paper pasting operation is automatically operated.
In the present invention, when the paper pasting operation is manually operated, the rotational speed of the printing machine is slowed. Under this condition, problems can be prevented from occurring during the paper pasting operation.
As described above, in the embodiment according to the present invention, if a width of a web of a new roll is much different from that of an old roll, an automatic paper pasting is not preferable. Under the condition wherein some problems are apt to occur during the paper pasting operation, the rotational position of the new web roll is moved to a paper pasting position by actuating an automatic paper pasting setting means.
Having thereby described the subject matter of the present invention, it should be apparent that many substitutions, modifications, and variations of the invention are possible in light of the above teachings. It is therefore to be understood that the invention as taught and described herein is only to be limited to the extent of the breadth and scope of the appended claims.
Claims
- 1. A method for controlling a device for continuously supplying a web by adhering a web of an old web roll onto a web of a new web roll, said method comprising:moving said new web roll into proximity with said web of the old web roll; and controlling the rotational position of said new web roll about its axis said new web roll such that the leading edge of said new web roll is at an adhering waiting position in response to a signal from a manual paper pasting setting means for setting a manual paper pasting mode.
- 2. A method for controlling a device for continuously supplying a web as claimed in claim 1, said method further comprising:switching on said manual paper pasting setting means under a condition in which an automatic paper pasting operation is likely to cause problems, including when the width of said web of said new web roll is narrower/wider than the width of said web of said old web roll.
- 3. A method for controlling a device for continuously supplying a web as claimed in claim 1, said method further comprising:adhering the web of said old web roll onto the web of said new web roll in response to a signal from a switch for adhering the web of said old web roll onto the web of said new web roll.
- 4. A method for controlling a device for continuously supplying a web as claimed in claim 3, said method further comprising:cutting the web being unwound from said old web roll in response to a signal from a switch for cutting the web being unwound from said old web roll.
- 5. A method for controlling a device for continuously supplying a web as claimed in claim 1, said method further comprising:switching on said manual paper pasting setting means under a condition in which an automatic paper pasting operation is likely to cause problems, including when a material of said web of said new web roll is different from a material of said web of said old web roll.
- 6. A device for controlling a device for continuously supplying a web by adhering a web of an old web roll onto a web of a new web roll, said device comprising:a first driving means for moving said new web roll into proximity with said web of the old web roll; a second driving means for controlling the rotational position of said new web roll about its axis such; means for setting a manual paper pasting mode; and a control device for stopping said second driving means at a rotational position of said new web roll such that the leading edge of said new web roll is at an adhering waiting position in response to a signal from said means for setting a manual paper pasting mode.
- 7. A device for controlling a device for continuously supplying a web as claimed in claim 6, said device further comprising:a switch for adhering the web of said old web roll onto the web of said new web roll; and means for adhering the web of said old web roll onto the web of said new web roll in response to a signal from said switch.
- 8. A control device for controlling a device for continuously supplying a web as claimed in claim 7, said control device further comprising:a switch for cutting the web being unwound from said old web roll; and means for cutting the web being unwound from said old web roll in response to a signal from said switch.
- 9. A method for controlling a device for continuously supplying a web as claimed in one of claim 1, claim 2 and claim 5, said method further comprising:reducing the rotational speed of a printing press in response to said signal from said manual paper pasting setting means.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2001-114860 |
Apr 2001 |
JP |
|
US Referenced Citations (15)