JP3426850B2 - Method and apparatus for driving horizontal needle device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for driving a lateral needle device for controlling the position of a sheet in the lateral width direction when transferring the sheet from the sheet feeding device to the printing device in a sheet-fed printing machine or the like.

[0002]

2. Description of the Related Art A conventional device will be described with reference to FIGS. FIG. 7 is an explanatory view of the configuration and function of the horizontal needle device,
When viewed from the rear of the sheet traveling direction, (a) shows a case where the sheet is regulated to the left in the width direction and (b) shows a case where the sheet is regulated to the right, and FIG. 8 is a schematic configuration explanatory view of a feeder board section in a sheet-fed printing press. , (A) shows an outline from the side, (b) shows the P arrow view of (a), and (c) shows the GG arrow view of (b).

The lateral needle device 2 is installed in a sheet-fed printing machine as shown in FIG. 8, and the sheet feeding device 25 to the first-color printing device 5 are installed.
This is a positioning device configured to regulate the position of the sheet 1 in the widthwise direction during the transfer of the sheet 1 to the printing device 5 so that the sheet can be accurately and stably loaded.

The basic structure of the post-feeder board 2 is as shown in FIG.
6 is installed on both width ends of the sheet 1 moving on the
Upper and lower rollers 4a and 4b and lower rollers 3a and 3b which form a pair, respectively.
It is composed of

The upper rollers 4a and 4b are configured so as to swing up and down together with the paper pressing plates 4a and 4b through an elevating device (not shown) so that they can come into contact with and separate from the lower rollers 3a and 3b. It does not have, but can be freely rotated by being attached to the axis of the arm via a bearing.

On the other hand, the lower rollers 3a, 3b are provided with screw gears 24a, 24b on the side ends thereof, and these screw gears 24a, 2b are attached.
4b and screw gears 23a, 23 attached to the lateral needle drive shaft 6
Rotational drive is forcibly transmitted by engaging with b.

In the figure, 16a and 16b are contact plates for restricting both side end positions of the seat 1, respectively, and are provided so as to be movable in the seat width direction on both sides of the operating side and the driving side.

The screw gears 24a, 24b at both width ends of the seat 1
Also, the screw gears 23a, 23b meshing with the screw gears 24a, 24b are formed with teeth having opposite twist angles, and the screw gears 23a, 23b are in the same direction via the shared lateral needle drive shaft 6. The lower rollers 3a, 3b rotate in opposition to each other by the meshed screw gears 24a, 24b as shown by the arrows in the figure, so that the sheet 1 can be drawn toward the respective side ends to be engaged.

Although rotation of one side or both sides of the screw gears 23a and 23b is restricted through the sliding key 9, the screw gears 24a and 24b, that is, the lower rollers 3a and 3b, the upper rollers 4a and 4b, and the paper pressing member. Plates 14a and 14b and side plate 1
It is configured so that it can move in the axial direction of the lateral needle drive shaft 6 together with 6a and 16b, and can accommodate various seats 1 having different lateral width dimensions.

Now, as shown by the arrow in FIG. 7A, when the seat 1 is moved to the left side when viewed from the rear, the lower roller 3
A is rotated by the rotation of the lateral needle drive shaft 6 from the screw gear 23a mounted on the shaft 6 via the screw gear 24a.

On the other hand, the upper roller 4a is controlled so as to descend immediately before the sheet 1 sent from the sheet feeding device 25 comes into contact with the front pad 27, and the sheet 1 is lowered by the lowering of the upper roller 4a. The position is set by abutting on the rear side contact plate 16a which is sandwiched between the rollers 3a and rotationally transferred to the sheet side end direction by the nip pressure between the rollers 3a and 4a. Then the sheet 1 is the upper roller 4
It is sent to the downstream printing device 5 as the part a is raised. When approaching to the opposite side, the lower roller 3b starts to rotate, and contrary to the above, it operates as shown in FIG. 7 (b).

As described above, in the conventional lateral needle device, the roller 3
The rotation direction of a, 3b and 4a, 4b is limited to one side,
Since the rotating directions are different on the operating side and the driving side, only one of the position reference sides can be used when aligning the left and right registrations of the seat 1.

[0013]

As described above, in the conventional general lateral needle device, lateral needle devices composed of an upper roller and a lower roller are installed at both ends in the sheet width direction. The roller is a floating roller that is attached to the elevating shaft, and it descends at a predetermined timing after passing the sheet, and functions to pinch the sheet between the lower roller that is forcibly driven to rotate and pull the sheet toward the lateral width edge of the sheet. To do.

Therefore, since the lateral needle devices at both ends of the sheet pull the sheets in mutually opposite directions, it is impossible to operate them at the same time. The side which becomes a reference in regulating the position of the sheet, that is, the operating side or the driving side. A method was adopted in which only one of the two sides was activated and the other side was kept in a standby state with the upper roller raised. For this reason, when the sheet is transferred for printing on thick paper or metal plate, the pulling force is weak against the weight, so it is not possible to reliably move and correct to the side contact plate, which is a cause of printing misalignment. Was becoming.

The present invention solves such a problem of the conventional device and provides a device for reliably, accurately and stably regulating the position of the sheet in the width direction regardless of the type of the sheet to be handled. The task is to do so.

[0016]

The present invention solves the above problems.
Those were all Kunasa, the both side lay device provided in the width direction ends of the sheet, in a predetermined same direction or the opposite direction
And the switching control to operate simultaneously to provide a driving method of the side lay device to regulate the widthwise position of the sheet, side lay devices simultaneously predetermined direction aligned those both ends in the width direction of the sheet or It is operated in the opposite direction and can respond to changes in the type of sheet handled.

Further, according to the present invention, lateral needle devices are provided at both ends in the width direction of the seat, and the lateral needle devices are driven by screw gears twisted in the same direction arranged on a common lateral needle drive shaft to drive the lateral needles. apparatus
Both in the same direction or in the opposite direction at the same time.
The present invention provides a drive device for a lateral needle device that moves to regulate the position in the width direction of the seat, and the lateral needle devices at both ends of the seat are screw gears on a common drive shaft and are twisted in the same direction. Since the seat is driven by, the sheet is actuated from both lateral needle devices in the same direction at the same time , and even if it is heavy, the seat can be reliably regulated in the width direction.

[0018]

Further, the present invention is provided with a side lay device in the width direction ends of the sheet, the side lay device is driven by screw gear twisted in the same direction which is arranged on a common horizontal pin drive shaft Rutotomoni,
The horizontal needle drive shaft is switched between normal rotation and reverse rotation via an intermediate gear.
That mechanism is provided, wherein both the side lay device operates a predetermined same direction or the opposite direction at the same time, to provide a driving device of a side lay device to regulate the widthwise position of the sheet over bets, the edge of the sheet The transverse needle devices arranged on both sides of the part are driven by screw gears twisted in the same direction on the same drive shaft, and pull the seat simultaneously in the same direction, so a large pulling force is required for heavy and thick objects. The sheet pulling direction can be changed by rotating the lateral needle drive shaft forward or backward.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic concept of the present invention will be described with reference to FIGS. 1 and 2, and the first embodiment will be described with reference to FIG. It should be noted that the same parts as those of the conventional one described above are denoted by the same reference numerals in the drawings, and overlapping description will be omitted.

FIGS. 1 and 2 are explanatory views of a sheet pulling direction and a driving method of a lateral needle device for moving and correcting a sheet to a predetermined reference position, and both side ends of the sheet advancing direction (the side facing from the front of the figure) (FIG. 2). The lateral needle devices 2a and 2b are provided on both sides of the same, and the lateral needle devices on each side are provided with means for switching the rotation direction of the lower rollers 3a and 3b (not shown).

1 (a) and 1 (b) show lateral needle devices 2a, 2 respectively.
b is used individually and is drawn to each corresponding side end, that is, only one side needle device 2a or 2b which is used as a position reference is used, and the other side needle device 2b or 2a is used as the upper rollers 4a, 4b. This is a method in which one of the two is raised and waits to be set in an inoperative state.

FIG. 1 (a) illustrates the case where the operating side (left side in the figure) 2a is activated and the drive side 2b is deactivated, but the right side 2b is activated as shown in FIG. 1 (b) by changing the setting. However, it is also possible to use the right side as the position reference of the seat.

Next, in the example of FIG. 2, the lower rollers 3a and 3b of the respective lateral needles are shown.
Are rotated in the same direction and simultaneously engaged with the seat 1. FIG. 2 (a) illustrates a method of operating both lateral needle devices and pulling them toward the operation side (left side in the figure) which is the reference, but as shown in FIG. 2 (b), both lower rollers 3a, 3b are reversed. There is also a method of rotating it in the direction and pulling it toward the right side in the figure. In the figure, S indicates a rotation direction switching means.

In the first embodiment of the present invention, as shown in FIG. 3, a pair of screw gears 7a, 8 located at both ends in the width direction of the seat 1 and having different twist directions on the lateral needle drive shaft 6 respectively.
a, 7b, 8b are attached. Same screw gears 7a, 8
The a and 7b, 8b are configured to rotate in synchronization with the lateral needle drive shaft 6 via the sliding keys 9a, 9b and to be movable in the axial direction.

In the present embodiment, the lateral needle on one side of the seat is constituted by the roller unit 12a having the screw gear 10a meshing with the screw gear 7a and the roller unit 13a having the screw gear 11a meshing with the screw gear 8a. Device 2
a, 2'a, and the other side has the same screw gear 1
0b and screw gear 11b, two sets of roller units 1
2b and 13b are provided.

The roller unit 12a includes the lower roller 3a having the screw gear 10a fixed thereto, the upper roller 4a and the paper pressing plate 14a in the same frame 15a, and the roller unit 13a has the lower roller 3'a fixed to the screw gear 11a and the upper roller 3a. The roller 4'a and the paper pressing plate 14'a are attached to the same frame 15'a, and the upper roller 4'a and the paper pressing plate 14'a are fixed to the sheet 1 to be fed similarly to the conventional type. It is configured to swing up and down at a timing (not shown).

FIG. 3A shows the roller units 12a and 12b.
Is incorporated with screw gears 10a, 10b for engaging the screw gears 7a, 7b on the lateral needle drive shaft 6 with the rollers 3a, 4
Both a and 3'b and 4'b are structured so as to rotate as indicated by arrows in the drawing and draw the seat 1 until it comes into contact with the operating side contact plate 16a. Further, in FIG. 3B, the roller unit is replaced and replaced, and the other roller units 13a and 13b are replaced with screw gears 8a and
The screw gears 11a, 11b to be engaged with the 8b side are incorporated, and the rollers 3'a, 3b, 4'a, 4b rotate together as shown by the arrows in the figure until the abutting against the driving side contact plate 16b. It has a structure that attracts 1.

Since the present embodiment is configured as described above, the operation side and the drive side have different twisting directions.
Although it is necessary to prepare a pair of roller units 12a, 13a, 12b, 13b, it is not necessary to change the rotation direction of the lateral needle drive shaft 6 due to the structure, the drive system need not be modified, and the structure is simple, and Operation side Drive side Rollers on both sides 3a, 3 '
By rotating b and 4a, 4'b in the same direction, the pulling force against the sheet 1 is doubled, and it is possible to sufficiently function even for the heavy sheet 1 such as thick paper or metal plate, and the versatility is greatly improved. Can be expanded to. Also, the same setting as the conventional type can be made by attaching only the lateral needle device on one side which is the reference surface and removing the roller unit on the other side.

As an applied structure in this embodiment, if the position reference of the weight sheet 1 is limited to only one side, for example, the operating side (left side in the figure), as shown in FIG. The unit 12a may be a fixed type, and in this case, the screw gear 8a and the roller unit 13a for replacement and replacement are unnecessary. In other words, the mechanism related to the rotation direction switching of the rollers may be installed only on the drive side (right side in the figure).

Further, if the position reference of the lightweight seat 1 is also limited to one side, as shown in FIG. 4B, the screw gear 7a attached to both ends of the seat 1, that is, the operating side and the driving side of the lateral needle drive shaft 6 '. , 7b can be improved by a combination in which the twisting directions are the same, and the function that can be dealt with deteriorates, but the structure is simplified and the manufacturing cost can be reduced.

A second embodiment of the present invention will be described with reference to FIG. The same parts as those of the conventional technique and the first embodiment described above are designated by the same reference numerals in the drawings, and the duplicated description will be omitted.

In this embodiment, as shown in FIGS. 5 (a) and 5 (b), the lateral needle drive shaft 6 is located at both ends in the width direction of the seat 1.
Two gears 17 and 18 are fixed to the upper side, respectively, and two gears 20 and 21 are also installed on the corresponding front drive shaft 19 side, and the rotation direction is stopped by the sliding key 28, and the gears can be moved in the axial direction. Is configured. Reference numeral 22 denotes an intermediate gear, which can be engaged or disengaged between the gears 18 and 21 (details of a shaft stop structure and the like are omitted).

This embodiment is constructed as described above, and further, the gears 20 and 21 on the front drive shaft 19 are moved in the axial direction, or the gears 17 and 18 on the side of the lateral needle drive shaft 6a are rotated. The gears 17 and 20 can be directly meshed with each other by moving the gears relative to each other, or the gears 18 can be meshed with the gear 21 through the intermediate gear 22. It has become.

That is, the lateral needle drive shaft 6a can be rotated in the opposite direction to the front drive shaft 19 by the direct combination shown in FIG. 5 (a), and the intermediate gear shown in FIG. 5 (b). Two
The cross needle drive shaft 6b is connected to the front contact drive shaft 1 by the combination of
It is possible to rotate in the same direction with respect to 9.

Incidentally, from the screw gears 23a, 23b attached to the lateral needle drive shaft 6a, the point for driving the lower rollers 3a, 3b integrally fixed via the screw gears 24a, 24b, and the upper roller 4a for swinging up and down. The basic configuration of the lateral needle device such as the paper pressing plate 14 is the same as that of the first embodiment.

Since the present embodiment is configured as described above, the lateral needle drive shaft 6 can be set by appropriately selecting and setting the combination of power transmission means (gear) from the front drive shaft 19 to the lateral needle drive shaft 6a. The rotation direction of can be rotated in any direction.

Because of the structure in which the rotation of the lateral needle drive shaft 6a is switched between normal rotation and reverse rotation, there is no need to replace or replace the roller unit 12 or 13 as in the first embodiment, and the same roller unit can be used. The reference position can be set to either the operation side or the drive side, and since this switching setting can be performed by one operation, the work is simple and the time can be shortened. Other effects include the above-mentioned first effect such as increase in pulling force.
The same function as that of the embodiment can be obtained.

In this embodiment, the gears 17, 18, 19, 20, 21, 21, which form the driving force transmission system.
2 is provided in the central portion of the drive shaft 19, and as shown in FIG. 6, gears 17 ', 18', 2 corresponding to these are provided.
0 ', 21', 22 'may be provided on the front end drive shaft 19a and the lateral needle drive shaft 6a on the axial end side.

Each of the embodiments of the present invention is constructed and functioned as described above, and not only can the seat position reference be set on either the operating side or the driving side, but also
By simultaneously operating the horizontal needle devices installed on both sides in the same direction, it is possible to greatly increase the pulling force, and it is possible to perform stable and reliable positioning even for a heavy sheet.

The side needle device can be manufactured in a form other than the simple side needle device exemplified by providing only a part of the above-mentioned components, for example, one side of the operating side and the driving side. .

Needless to say, the present invention is not limited to the embodiments described above, and various changes can be made without departing from the scope of the present invention.

[0043]

As described above, according to the present invention, the lateral needle device is selectively used depending on whether the sheet to be transferred is thin, such as thin paper or paper having a small area, or heavy, such as thick paper.
The sheet can be surely regulated in a predetermined direction, and the processing can be accurately and reliably performed in the usage range and the application range.

According to the second aspect of the present invention, by simultaneously driving the rollers of the lateral needle devices at both ends in the same direction, the two sets of sheets can be moved and corrected to one side serving as the position reference. Therefore, the pulling force is doubled, and even heavy sheets such as cardboard and metal plates can be brought into stable and reliable contact with the side contact plates, and printing misalignment due to skewing and other deterioration of print quality are improved. It is something.

Further, according to the third aspect of the present invention, since the direction of sheet shifting is controlled by switching the drive shaft between normal rotation and reverse rotation, the sheet shifting force can be doubled without increasing the number of lateral needle devices. In addition, it is possible to provide a device having good workability and cost efficiency.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a basic concept of a method of driving a lateral needle device according to the present invention, in which (a) is a sheet positioned on one end side and (b) is a sheet positioned on the other end side.

FIG. 2 shows the same basic concept as in FIG. 1, in which the transverse needle devices at both ends are aligned and moved in the same direction.
FIG. 6B is an explanatory diagram for positioning the sheet on the other end side.

3A and 3B are explanatory views showing a drive system of the lateral needle device according to the first embodiment of the present invention, in which FIG. 3A is a case where a sheet is positioned to one end side, and FIG.

4A and 4B are explanatory views separately showing the partial application example of FIG. 1A and FIG.

FIG. 5 is a diagram illustrating a drive system of a lateral needle device according to a second embodiment of the present invention, in which (a) is a sheet positioned on one end side and (b) is a sheet positioned on the other end side.

FIG. 6 is an explanatory diagram showing a partial application example of FIG.

7A and 7B are explanatory views showing a drive system of a conventional lateral needle device, in which FIG. 7A is a diagram illustrating a case where a sheet is positioned to one end side, and FIG.

FIG. 8 shows an outline of a conventional sheet positioning device,
(A) is a side view thereof, (b) is a detailed view seen from the arrow P of (a),
(C) is a GG arrow line view of (b).

[Explanation of symbols]

1 sheet 2a, 2b Horizontal needle device 3a 3b Lower roller 4a, 4b Upper roller 5 Printing device 6 Horizontal needle drive shaft 7a, 7b screw gears 8a, 8b screw gear 9a, 9b Suberiki 10a, 10b screw gears 11a, 11b screw gears 12a, 12b Roller unit 13a, 13b Roller unit 14a, 14b Paper holding plate 15a, 15b frame 16a, 16b Plate 17,18,20,21 gears 19 Front drive shaft 22 Intermediate gear 23a, 23b screw gears 24a, 24b screw gear 25 sheet feeder 26 feeder board 27 Forehead 28 Suberiki

Claims (3)

(57) [Claims] 1. A lateral needle device provided on both ends of a sheet in a width direction .
The both, switching control and to work <br/> moving simultaneously in a predetermined same direction or the opposite direction, the driving method of the side lay device being characterized in that to regulate the widthwise position of the sheet. 2. A lateral needle device is provided at both ends in the width direction of the sheet,
The side needle device is driven by a screw gear that is twisted in the same direction and disposed on a common side needle drive shaft, and both side needle devices are driven by a predetermined distance .
A drive device for a lateral needle device characterized in that the position in the width direction of a sheet is regulated by simultaneously operating in the same direction or in the opposite direction . 3. providing a side lay device in the width direction ends of the sheet, the same side lay device is driven by screw gear twisted in the same direction which is arranged on a common horizontal pin drive shaft Rutotomoni, the horizontal pin drive Axis in
A mechanism for switching between normal rotation and reverse rotation via the gear is provided.
Is the both side lay device operates a predetermined same direction or the opposite direction at the same time, the driving device of the side lay device being characterized in that to regulate the widthwise position of the sheet over and.