JPH1095094A - Lifting type turn bar device for rotary printing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rich printed matter in compliance with the edition content following progress of tendency of ever-increasing pages and color processing by lifting and lowering a stand opening respective supporting shafts in the cantilever manner, installing webs on the stand in the state of crossing perpendicularly the supporting shafts and guiding the webs heading for a turn bar. SOLUTION: Given webs 1 with multicolor-printed surface and back are moved to one side together with a plurality of other monochrome printed webs 2, 2... traveling toward a folding machine, and rotated around an upper turn bar device 10a, and a stand 12a is moved to the topmost position, and the web 1a is passed through a reversely facing turn bar 3b and moved reversely the moving direction, and the web is wound on a guide roller 9 and moved back. Then the web 1a with its face multicolor printed in the state of facing the front side is moved into the folding machine. On the other hand, the surface and the back of a web 1b are turned round and moved into the folding machine in the state of setting the multicolor printed surfaces on the back side. The given multicolored webs can be inserted on the optional positions between a number of monochrome printed webs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turn bar device which can be moved up and down in a paper passage of a rotary press.

[0002]

2. Description of the Related Art Conventionally, in a rotary printing press, a running paper (referred to as a web in the present specification) is divided into two equal parts in a paper width direction, and one vertically cut web is brought close to the other web side and superposed. 2. Description of the Related Art A turn bar device is used when a color-printed web is turned upside down or when a specific web is inserted between a plurality of webs.

In this turn bar apparatus, a round bar turn bar arranged at 45 ° to the paper flow direction is attached to a pair of support shafts so as to be adjustable in the paper width direction. By passing through this turn bar, the traveling direction is changed by 90 °. In recent years, with the increasing number of pages and colorization of printed matter, for example, in the case of newspaper printing, single-color or multi-color printing according to the editing content on the top side, multi-page spread, sports side, and other various aspects of multi-page newspapers is performed. It has come to be applied. For this reason, the necessity of installing a turn bar device in a paper threading path of a rotary printing press is increasing more and more.

FIGS. 7 and 8 show an example of a stationary turn bar device 30 in a newspaper rotary press having a double-width single-sided multicolor printing unit which has been widely used in the past. The stationary turn bar device 30 includes a pair of frames 32a, 32
and an upper turn bar device 30a in which two turn bars 3a, 3a are disposed in parallel at an angle of 45 ° with respect to the running direction of the web, and a pair of frames 32
a lower turn bar device 30b in which two turn bars 3a, 3b intersect with the turn bars 3a, 3b and are arranged at an angle of 45 ° with respect to the running direction of the web; Turn bar device 30
It is composed of two rollers 4, 4 (hereinafter referred to as bay window rollers) disposed at an outlet of a and an inlet of the lower turn bar device 30b in a state orthogonal to the running direction of the web.

[0005] One end of each of the turn bars 3a, 3b is
The support shaft 31a is attached via a bearing 5 so as to be slidable in the paper width direction, and both ends of the support shaft 31a are fixed to a pair of frames 32a and 32b. The other ends of the turn bars 3a and 3b are fixed to a support shaft 31b via a bearing 6, and both ends of the support shaft 31b are attached to the pair of frames 32a and 32b so as to be slidable in the paper width direction. At one end of the support shaft 31b, turn bars 3a, 3
There is an adjusting device 7 that enables adjustment of b in the axial direction, and the adjusting device 7 is attached to the frame 32b.

In the conventional stationary turn bar device 30, as shown in FIG. 9, a multicolor-printed web 1 on the surface of a four-page wide newsprint is slit into two pages by a slitter, and then one of the webs is slit. If the back side of the web 1a and the front side of the other web 1b are overlapped and sent to a folding machine,
While moving one web 1a straight, the other web 1b
Is changed to a right angle by the first turn bar 3a,
Turn right angle again by next turn bar 3a, and web 1b
Is superimposed on the back surface of the web 1a which is traveling straight, and sent out to the folding machine.

Further, as shown in FIG. 10, a multicolor printed web 1 on the surface of a four-page newsprint is longitudinally cut into a two-page width by a slitter, and then the back of one web 1a and the back of the other web 1b are cut. And sending it to a folding machine, one of the webs 1a longitudinally cut into two page widths by a slitter is moved straight, while the other web 1b is
First, the traveling direction is changed to a right angle by the upper turn bar 3a, then to the direction of the arrow by the upper and lower bay window rollers 4, 4, and then to the right angle by the lower turn bar 3b in the opposite direction. The back surface of the web 1a is fed to the folding machine with the back surface of the web 1a superimposed on the back surface of the web 1a.

At this time, the surface of one of the webs 1a is multicolor-printed, and the back of the other web 1b is multicolor-printed, and the webs 1a and 1b are sent to the folder in an overlapping manner. By passing a plurality of other webs 2 between which one-color printing is performed between the front and back sides, a multi-page newspaper in which the top surface, the last surface, and the facing surface are multicolored is discharged.

[0009]

In the conventional turn bar device, the turn bars 3a, 3b are attached to two support shafts 31a, 31b provided between a pair of frames 32a, 32b, and the turn bars need to be turned upside down. Has the following disadvantages since the bay window roller 4 is further attached to the side surfaces of the frames 32a and 32b. (A) With the development of multi-page and color printing,
Even if it is desired to add a color surface such as multi-color printing to various surfaces, the number of pages on which a specific printing surface such as multi-color printing enters is limited by the mounting position and number of the turn bar devices, and there is little room for selection. (B) In order to adapt a specific printing surface such as multicolor printing to an arbitrary page, it is necessary to increase the number of multicolor printing units or the number of turn bar devices. The price of the printing press will be significantly higher. In the latter case, the paper threading path becomes very complicated, workability is deteriorated, and in each case, the size of the machine is increased and a large installation space is required. (C) A guide roller is required before and after the turn bar, and a rotary press that requires reversal requires a bay window roller on the side surface of the turn bar. For this reason, it is blocked by these rollers and support shafts, so that the accessibility to the turn bar is not good, and the transparency and workability are significantly impaired by the side frames.

The present invention has been made in view of the above problems, and has as its object to obtain abundant printed matter according to the editing content accompanying the progress of multi-page and colorization. It can suppress the increase in the size of the rotary press, the increase in price and the increase in installation space, can greatly improve the printing operation and paper threading work, can easily perform the preparatory work before printing, and shorten the work time It is an object of the present invention to provide a lift-type turn bar device for a rotary printing press that can be used.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a rotary printing press turn bar apparatus for changing the traveling direction of a web by a turn bar, wherein a pair of support members for supporting both ends of the turn bar are provided. A supporting shaft, a gantry for supporting each of the supporting shafts in a cantilever manner, elevating means for elevating the gantry, a frame for supporting the elevating means, and mounting on the gantry in a state orthogonal to the supporting shaft. And a guide roller for guiding the web toward the turn bar (claim 1).

[0012] In the lift-type turn bar device for a rotary printing press according to the first aspect of the present invention, the support shaft may be provided with a turn bar having a reverse direction crossing the turn bar. 3. The lift-type turn bar device for a rotary printing press according to claim 1, wherein said lift means includes a pair of screw shafts screwed to both ends of said gantry, a drive shaft connected to each of said screw shafts, and said drive. The motor may be constituted by a motor connected to the shaft, sliding members attached to both ends of the gantry, and rails on the frame side for guiding the sliding members in the vertical direction.

In the up-and-down type turn bar device for a rotary printing press according to any one of claims 1 to 3, a roller tower is provided on the frame, and a guide roller of a number corresponding to the number of webs entering the folding machine is arranged on the roller tower. The elevating means may be provided with a position detector for detecting the elevating position.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] Next, an up-and-down type turn bar device of a rotary printing press according to the present invention will be described with reference to a first embodiment shown in FIGS. FIG. 1 is a front view showing the entire structure of the lifting type turn bar device,
2 is a plan view of FIG. 1, FIG. 3 is a plan view for explaining the flow of the web, and FIG. 4 is a side view of FIG.

1 to 4, reference numeral 1 denotes a double-width specific web on which one side is multicolor-printed, 1 a and 1 b denote webs in which a specific web 1 is vertically cut into half widths by a slitter, and 2 denotes front and back, for example, monochrome printing The other web 3a is a turn bar 3a arranged at 45 ° to the paper flow direction in order to change the traveling direction of the longitudinally cut webs 1a and 1b by 90 °, and 3b is a turn bar 3a. The turn bar 10 in the opposite direction orthogonal to the above is a vertical lift bar device.

The elevating type turn bar device 10 is applied to a newspaper rotary press having a double-width single-sided multi-color printing unit. As shown in FIG. 1 and FIG. An upper turn bar device 10a corresponding to the web 1a and a lower turn bar device 10b corresponding to the other web 1b are provided. Each turn bar device 1
0a and 10b are the turn bar 3a and the turn bar 3 in the opposite direction.
and a pair of support shafts 11a and 11b for supporting both ends of each turn bar, and a gantry 1 for supporting these support shafts 11a and 11b in a cantilevered state.
2a, 12b, elevating means 13a, 13b for supporting the gantry 12a, 12b and moving in the vertical direction, and a pair of frames 14a, 14b (the gantry 12a, 12b) for supporting the respective elevating means 13a, 13b A pair of frames 14a, 14b) located on both sides of the
A guide roller 15 is attached to the support shaft 12b so as to be orthogonal to the support shafts 11a and 11b and guides the web toward the turn bars 3a and 3b.

One end of each of the turn bars 3a and 3b is attached to a support shaft 11a via a bearing 5 so as to be slidable in the paper width direction. One end of the support shaft 11a is
a, 12b. And turn bar 3a,
The other end of the support shaft 3b is fixed to a support shaft 11b via a bearing 6, and one end of the support shaft 11b is connected to the gantry 12a, 12b.
A motor 19 is attached at the tip of the motor 19 to move the respective support shafts 11b in the axial direction so that the turn bars 3a and 3b can be adjusted in the paper width direction. Each of the mounts 12a via gears,
12b.

The elevating means 13a, 13b
a, a pair of screw shafts 1 screwed to both ends of 12b, respectively
6a, 16b and 16b, 16b, and one end of drive shafts 17a, 17b for transmitting power to the pair of screw shafts 16a, 16a, 16b, 16b via bevel gears 44, a motor 18, 18 are attached. Also, at the other end of the drive shafts 17a, 17b,
Potentiometers 48, 4 for detecting the movement position of the 12b
8 is attached. And each of the gantry 12a, 12b
Each of the two ends is provided with two sliding members 45, and rails 46 are engaged with the sliding members 45 to slide the respective gantry 12a, 12b in the vertical direction.
Each row is laid on the frames 14a and 14b.

Reference numerals 47a and 47b denote roller towers in which a number of guide rollers 9 corresponding to the number of other webs 2 entering the folding machine are arranged at regular intervals.
a, 47b are attached to the frames 14a, 14b. Next, the operation of the elevating turn bar device shown in FIGS. 1 to 4 will be specifically described. For example, a specific web 1 on which the front and back are multicolored is aligned with one side of a plurality of other webs 2, 2,. When it is desired to discharge a multi-page newspaper having a multicolor printing surface, as shown in FIGS. 3 (A) and 4 (A), the raising / lowering motor 18 of the upper turn bar device 10a is rotated to lower the gantry 12a. The web 1a is moved to the upper position, the web 1a is passed through the turn bar 3b in the opposite direction, the course is changed in the right angle direction, the web 1a is reversed, and the web 1a is wound around the guide roller 9 and returned. Then, the elevating motor 18 of the lower turn bar device 10b is driven to move the gantry 12b to the lowermost position, and the web 1b is passed through the turn bar 3a to change its course in a right angle direction and travel straight.

Then, the web 1a enters the folding machine with the multicolor printed surface facing up. On the other hand, web 1b
Enters the folding machine with the front and back turned upside down and the multicolored side is the back side. Therefore, if a plurality of other webs 2, 2,... That have been subjected to other monochrome printing or the like are printed between the web 1a and the web 1b and printed, multi-color printing is performed on the intended page surface. The page newspaper is ejected.

Further, for example, a specific one-color web 1a having a multi-colored surface is provided between the uppermost paper and the intermediate paper in a plurality of other webs 2, 2,... , And the other web 1b is inserted between the uppermost sheet and the intermediate sheet, and a multi-page newspaper whose inner surface is to be a multicolor printing surface is to be discharged so as to be aligned with one side.
As shown in FIG. 4B and FIG. 4B, the elevating motor 18 of the upper turn bar device 10a is driven to move the gantry 12a to the second position from the top, and the web 1a is passed through the turn bar 3a. Change the course at right angles and go straight. And the lifting motor 1 of the lower turn bar device 10b.
8, the gantry 12b is moved from the paper passing position of the lowermost web 2 to the second uppermost position, and the web 1b is passed through the turn bar 3b in the opposite direction to change the course in the right angle direction and to reverse. Then, it is wound around the guide roller 9 and returned.

Then, the web 1a enters the folding machine with the multicolor printed surface facing the back, while the web 1b is turned upside down and the multicolor printed surface is facing the front. Therefore, if the web 1a and the web 1b are printed by passing through another web 2 which has been subjected to monochrome printing on the upper and lower sides, respectively, a multi-page newspaper in which multi-color printing is inserted on the intended page surface is discharged. .

In order to set the insertion positions of the gantry 12a, 12b, if the insertion positions of the specific webs 1a, 1b between a plurality of webs are preset by an operation panel (not shown), the drive of the lifting motor 18 is performed. The lift position is detected by each potentiometer 48 attached to the shaft end of the shaft 17a, 17b, and the operation panel detects the specific web 1a,
The gantry 12a, 12b is automatically stopped at the guide roller 15 position of the roller tower 47 corresponding to the insertion position of 1b, so that if the above-described paper threading is performed at this position, the paper passing according to the printing plan can be easily performed. As a result, the printing preparation work is shortened.

[Second Embodiment] Next, an up-and-down type turn bar device of a rotary printing press according to the present invention will be described with reference to a second embodiment shown in FIGS. FIG. 5 is a front view showing the entire structure of the lifting type turn bar device, and FIG. 6 is a plan view of FIG.

This embodiment is applied to a newspaper rotary press having a double-width double-sided multicolor printing unit. Reference numeral 20 denotes an elevating turn bar device.
Is an upper turn bar device 20a corresponding to one of the webs 1a vertically cut in half width, as shown in FIGS.
And the lower turn bar device 2 corresponding to the other web 1b
0b.

In this embodiment, the structure is the same as that of the first embodiment except that only the turn bar 3a is attached to each of the support shafts 21a and 21b and the turn bar 3b in the opposite direction is removed. In this embodiment, the rotary press is provided with a two-sided multicolor printing unit, and a specific web 1
Can selectively perform multicolor printing on both the front and back sides of both webs 1a and 1b that are vertically cut into half widths. Therefore, the turn bar devices 20a and 20b are provided with the gantry 2 at each of the insertion positions between the plurality of webs according to the printing request.
2a, 22b are moved, and both webs 1a,
By passing 1b through each turn bar 3a, a multicolor printing surface can be inserted into an arbitrary page of a multipage newspaper that has been printed in monochrome.

The other operations are the same as those of the first embodiment. Therefore, in this embodiment, the structure is simplified and the paper threading operation is facilitated.

[0028]

The lifting type turn bar device of the present invention raises and lowers the gantry on which the turn bar is mounted in a cantilever manner as described above, so that the following effects are achieved. (A) It is possible to freely insert a specific web such as a multi-color print at an arbitrary position between a large number of webs such as a monochrome print, so that editing accompanying the progress of multi-page and color printing can be performed. Abundant printed matter can be obtained according to the contents. (B) Since a specific web subjected to multicolor printing is inserted into an arbitrary page of multipage paper, the number of multicolor printing units and the number of turn bar devices need not be increased.
The above needs can be met, the configuration of the rotary press and the paper threading path can be simplified, and it is possible to suppress an increase in the size of the rotary press, an increase in price, and an increase in installation space. (C) Since the support shaft for supporting the turn bar has a cantilever structure and the operation surface is open, the visibility from the side is good, the operation status can be easily monitored, and the turn bar is approached. The printing performance and paper threading work can be greatly improved because of its good performance. (D) A roller tower is added, and a position detector is attached to the elevating means, and the turn bar can be automatically set at a specific web insertion position between multiple webs in advance according to the daily operation plan. Preparation work before printing can be easily performed, and work time can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a lifting type turn bar device of the present invention.

FIG. 2 is a plan view taken along line AA of FIG. 1;

FIG. 3 is a plan view for explaining a web flow of the lift type turn bar device.

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a front view showing a second embodiment of the lifting type turn bar device of the present invention.

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a plan view showing a conventional stationary turn bar device.

8 is a vertical sectional side view taken along line AA of FIG. 7;

FIG. 9 is a perspective view showing a flow of a web of the identification stationary type turn bar device.

FIG. 10 is a perspective view showing a flow of a web of the identification stationary type turn bar device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Specific web 1a, 1b Vertically cut web 2 Other webs 3a Turn bar 3b Reverse turn bar 4 Bay window roller 5 Bearing 6 Bearing 7 Adjusting device 9 Guide roller 10, 20, 30 Turn bar device 10a, 20a, 30a Upper turn bar Device 10b, 20b, 30b Lower turn bar device 11a, 11b, 21a Support shaft 21b, 31a, 31b 〃 12a, 12b Mount 22a, 22b １３ 13a, 13b Lifting means 14a, 14b Frame 15 Guide rollers 16a, 16b Screw shaft 17a, 17b Drive shaft 18 Motor (for lifting and lowering) 19 Motor (for turn bar) 44 Bevel gear 45 Sliding member 46 Rail 47a, 47b Roller tower 48 Potentiometer 49a, 49b Side plate

Claims (4)

[Claims] 1. A turn bar device of a rotary printing press for changing the traveling direction of a web by a turn bar, comprising: a pair of support shafts for supporting both ends of the turn bar; and a gantry for supporting each of the support shafts in a cantilever manner. An elevating means for elevating and lowering the gantry, a frame supporting the elevating means, and a guide roller mounted on the gantry so as to be orthogonal to the support shaft and guiding a web toward the turn bar. Elevating turn bar device for rotary printing press characterized by the following. 2. The up-and-down type turn bar device of a rotary printing press according to claim 1, wherein the support shaft is provided with a turn bar of a reverse direction crossing the turn bar. 3. A pair of screw shafts screwed to both ends of the gantry, a drive shaft connected to the screw shafts, a motor connected to the drive shafts, and both ends of the gantry. 3. A sliding member attached to a portion, and a rail on the frame side for guiding the sliding member in a vertical direction.
An elevating type turn bar device of the rotary printing press as described in the above. 4. A roller tower is provided on the frame, guide rollers of a number corresponding to the number of webs entering the folding machine are arranged side by side on the roller tower, and a position detector for detecting a lifting position is provided on the lifting means. An elevating type turn bar device for a rotary printing press according to claim 1.