JPH0356348A - Paper edge automatic aligning device for printing paper - Google Patents

Abstract

PURPOSE:To automatically correct the dislocation of the edge positions of printing paper sheets by detecting both the edge of a winding paper being used and the edge of a new winding paper by first and second detecting means respectively, and also providing a control mechanism by which, on the basis of the signals of these detecting means, a winding-paper supporting member is driven by the driving mechanism for aligning he edges of both the winding paper sheets in a prescribed position. CONSTITUTION:To align the edge positions of winding paper sheets 21A, 21B, a detecting-means driving mechanism 60 is driven for moving first and second detecting means 25, 26 to the side of the side of the winding paper sheets 21A, 21B respectively. By the detecting signals based on the edge positions of both the winding paper sheet 21A being used and the new winding paper sheet 21B, which are detected by the first and second detecting means 25 and 26, via a winding paper supporting member 30 is driven by the driving mechanism 60 via a control mechanism 50 for aligning the edge positions of the paper sheets.

Description

Detailed Description of the Invention [Field of Application of Industry-L] The present invention relates to an automatic sheet edge joining device for printing paper, and relates to a device for automatically joining and joining paper edges of printing paper, Can be used as a paper feed section.

[Background technology]

Conventionally, in the paper feed section of a rotary offset printing press, a plurality of webs attached to a web support arm are successively spliced by an automatic paper splicing device (all paster device).
This allows the printing press to print continuously.

[Problems to be Solved by the Invention] Incidentally, printing paper rolls have a gap in paper width due to manufacturing, and for example, there may be a difference in paper width of ±2 mm, or 4 mm at maximum.

For this reason, in the paper feed section, if the edge (paper edge) of the web being used, or more precisely, the edge (paper edge) of the running paper pulled out from the web, and the edge of the new web are not aligned sufficiently, the connection of the web will occur. There is a problem that the paper may break when it hits the blanket or other parts of the printing press.

An object of the present invention is to automatically correct misalignment of the edge of a web during paper splicing, and to effectively prevent breakage of the web due to misalignment of the edge of the web. To provide movement matching equipment.

(Means for Solving the Problems) The present invention detects the edge of a web being used and the edge of a new web using first and second detection means, and Based on the signal from the detection means, the web supporting member is driven by its drive mechanism to align the edges of both webs at predetermined positions, thereby achieving the above object.

Specifically, the present invention provides a web support member that rotatably supports a web and is movable in the axial direction of the web, and a web support member drive mechanism that drives the web support member in the axial direction of the web. , a first detection means capable of detecting the position of at least 4) one edge of the web in use;
{Second detection means capable of detecting the position of at least one edge of the newly fed paper, and these first and second detection means;
a detecting means drive mechanism for moving the detecting means forward and backward relative to the edge of the paper roll during use or a new paper roll; and a paper roll support member drive mechanism for driving the paper roll support member drive mechanism based on signals from the first and second detection means. This automatic paper edge aligning device for printing paper is characterized by having a control mechanism that aligns the edge of a roll of paper and the edge of a new roll of paper at predetermined positions.

Further, in the present invention, the first detecting means is an optical detecting means, and the second detecting means is a contact detecting means, and the control mechanism controls a new web supporting member drive mechanism for a new web in advance. is driven a predetermined amount in the direction away from the second detection means, and then the first and second detection means are brought close to both the winding paper at the same time, so that the first detection means can detect the edge of the paper roll being used. If detected by the second detecting means, stop the movement of the first and second detecting means, and then move the web support member drive mechanism of the new web to the second detecting means side. Driving control may be performed so that the W and J are made equal to each other.

Furthermore, in the present invention, the detection means drive mechanism includes a first
, a single drive source for simultaneously driving the second detection means is provided, and a feed amount detection means for detecting the feed amount of both detection means by this drive source is provided, and the first and second detection means are provided. , the edge of the web being used is detected at the same position by the first sensing means which is arranged in the same straight line substantially parallel to the edge of the web and moves based on the drive of the sensing means drive mechanism. The feed amount detection means detects a difference between the detected position of the edge of the new web by the detection means, and the control mechanism controls the drive of the web supporting member drive mechanism based on a signal from the feed amount detection means. You can also do this.

Further, in the present invention, the first and second detecting means are arranged at both edges of both the webs, and the web supporting member is driven based on the signals from both the first and second detecting means. The mechanism may be driven and controlled by a control mechanism.

[Effect]

In this invention, in order to align the η1 and i edges of the web, the detection means drive mechanism is driven to move the first and second detection means toward the web. Based on the detection signals based on the edge positions of the used and new webs detected by these first and second detection means, the web support member is driven via a control mechanism to align the paper edges.

Regarding the positioning of the edge of the web, the specific action is highly variable.

For example, a new web is moved toward the first and second detection stages, which are stopped at the position where the edge of the web being used is detected, and the edge of this new web is moved to the second detection stage. When detected by the detection means, the movement of the new web may be stopped and the positioning of the edge end may be performed, or alternatively, the position of the new web during use and the position of the new web may be initially stopped, and the first,
The second detecting means is simultaneously moved toward both the webs, and the difference in the edge positions of the two webs sequentially detected by the first and second detecting means is detected by the feed amount detecting means of the detecting means driving mechanism. It is also possible to detect this difference and move a new web based on this difference to perform alignment.

In addition, when the first and second detection means for detecting the position of the edge of the paper roll are respectively provided on both edges of the paper roll, both of these 0:i{the first and second detection means of the edge The edges of both webs are aligned based on the detection signal from.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

A first embodiment of the invention is shown in FIGS. 1-3.

In FIGS. 1 and 2 showing the overall structure, a paper splicing device 10 includes a two-arm arm 11 for supporting a web.

The two-arm arm 11 is rotatably supported at its center by a bearing 12, and can be rotated by a rotational drive source (not shown).

Further, the two-arm arm 11 has a roll paper 21 at each end.
The roll paper support member 30 rotatably supports the roll paper 21.
A has a new web 2 on the other web support member 30B.
1B are supported respectively.

[Paper splicing device] 0, new web 2 1. A base arm 13 is provided near 8, and this base arm 13 is rotatable about a support shaft 14 provided at an eccentric position. In addition, paster arm 13
A piston rod 15A of an arm drive cylinder 15 that rotates the paster arm 13 is connected to one end of the upper side in the figure, and a guide roller I6 that pushes out the used web 21A toward a new web 21B is connected to the other end. is provided.

Further, near the other end of the base arm 13, a middle portion of a brush arm 17 is rotatably supported. A brush roller 18 is rotatably supported at one end of the plush arm 17, and the tip of a piston rod 19A of an air cylinder 19 attached to the base arm 13 is connected to the other end. Therefore, by operating the air cylinder 19, the current paper 21A is transferred to a new web 2 by the brush roller ]8. It can be suppressed to the B side,
As a result, a new paper roll 21AJ::. Due to the action of the double-sided tape 22 that has been affixed in advance to both roll papers 2IA,
21B is to be bonded.

The web support member 30, as shown in FIG.
Rod-shaped centers 3 placed on the left and right with the winding 2I in between
1 and an elastic support center 32.

The mouth-shaped center 3■ is movable in the axial direction of the web 21, while the elastic support center 32 is attached to the casing 33.
and a sliding body 34 inserted into the casing 33 into an axially sliding automatic ladle.
It is biased to protrude to the side.

On the rod-shaped center 31 side of the paper roll support member 30,
A web support member drive mechanism 40 is provided and is configured to rotate together with the two-arm arm 11. This drive mechanism No. 40 includes a rear motor 41 operated by the control 1 unloading mechanism 50, a gear train 42 connected to the output shaft of the servo motor 41, and a gear train 42 installed at the terminal end of the gears 1 to 42. This is caused by the bent pinion 43 and the rack 44 formed by the rod-shaped center 31 and meshed with the pinion 43.

As a result, the web 21 is moved between the rond-shaped center 3I and the elastic support center 32 by the urging force of the elastic support center 32.
The paper web 21 is supported between the paper rolls 21 and 21, and is moved in the axial direction of the paper web 21 as the paper web support member driving mechanism 40 is driven, so that the positioning of the ends can be performed.

One end of the web 21 iii! 23 side, Zunawara,
On the opposite side of the web 21 from the web supporting member drive mechanism 40, there is a first detection stage 25 for detecting the position of the edge 23A of the web 21A in use, and the position of the edge 23B of the new web 21B. Second detection means 26 for detecting are arranged respectively, and these first and second detection means 25.2
6 is located on a straight line -12 which is substantially parallel to the edge 23 of the winding sleeve 21. At this time, the second detection means 26
is a new web 2 in state 81h1 1. It is arranged near the outer periphery of 8.

The first detection means 25 is composed of a non-contact type photosensor such as a folio coupler having a U-shaped side surface, and detects the winding paper 21 in the middle. Edge 23A of A
is inserted between a light emitting element and a light receiving element (not shown), so that the position of the edge 23A can be detected.

On the other hand, the second detection means 26 is made up of a contact detection means such as a limit switch, and has an actuation layer 27, and the second detection means 26 has an actuation layer 27, and a new web 2 that is wound around the actuation layer 27.
By touching the edge 23B of 1B, the edge 23B
It is possible to detect the position of

The first and second detection means 25 and 26L are movable forward and backward relative to the edge 23 of the web 21 by a detection means drive mechanism 60.

The drive mechanism 60 is connected to the frame of the splicing device 10, as shown in an enlarged view in FIG. It is equipped with a motor 62 as one drive source 1t supported on a support stand 61 erected at the OA. One end of a feed gear shaft 63 is connected to the output shaft 62A of the motor 62, and the other end of the feed gear shaft 63 is connected to the frame 1. O
It is rotatably supported by a bearing stand 64 erected at A.

A pair of guide halves 65 are stretched between the moke support stand 61 and the bearing stand 64 in parallel with the feed shaft 63.
A movable member 66 is slidably supported on these guide wheels 65. A central portion of the movable member 66 is screwed onto the feed screw shaft 63 and is moved forward and backward as the feed screw shaft 63 rotates.

In addition, limit switches 67 and 68 are attached to mutually opposing positions of the motor support base 61 and the bearing base 64, respectively, so that the limit of movement of the movable part 66 can be detected.

At one end of the movable part +A'66, there is a linear brague y.
The first detection means 25 is detected via the
The second detection means 26 is attached to the other end of the movable member 66 via a bracket 71 shaped like a square.

The second detection stage 26 is attached to the bracket 71.
The first board 72 is
The position of the stock paper 21 relative to the bracket 71 can be adjusted in the axial direction. Further, the tip of an adjustment screw 73 that is screwed into the bracket 71 so as to be able to advance and retreat is brought into contact with the mounting plate 72, and by rotating this adjustment screw 73, the mounting plate for the brackets 1 and 71 is attached. The position of 72 can be finely adjusted. The amount of position adjustment of the mounting plate 72 can be set using a scale 74 provided on the bracket 1/71 and a reference line 75 provided on the handle 1 plate 72.

Therefore, by rotating the adjustment screw 73, the position of the actuating lever 27 of the second detecting means 26 can be adjusted, and the position of the actuating lever 27 and the position of the first detecting means 25 can be adjusted on the straight line -E. can be set accurately.

As shown in FIG. 1, the control means 50 includes, in addition to the servo motor 41, first and second detection means 25, 26, and a motor 6 of a detection means drive mechanism 60.
2 and ξ-lit switches 67 and 68 are connected, respectively, and an input stage 51 is also connected. This input stage 51 is for not manually moving the motor 41 of the web support member drive mechanism 40 that is automatically controlled by the control mechanism 50, and is used to control a volume or the like for rotating the motor 41 forward or backward by a predetermined amount. We are prepared.

Note that the reference numeral 29 in FIG. 2 is a guide roller that guides the web 2IA in use.

Next, the operation of this embodiment will be explained.

To start paper splicing, a new roll of paper 21B is set on the open side of the two-arm l1 of the splicing device 10.

Next, by operating the drive start button, the control mechanism 50 drives the motor 41 of the web support member drive mechanism 40, and the rod-shaped center 31 is moved to the left in the figure. As a result, the edge 23B of the new paper roll 21B is shifted to the left by a predetermined amount, for example, about 10 mm, from the edge 23A of the paper roll 21A in use. At this time, the elastic support center 3
The sliding body 34 of No. 2 is actuated by the action of a biasing means (not shown).
Roll paper 2 1. Each time you press A, it will follow the movement.

Next, the two-arm arm I1 of the paper splicing device 10 is rotated and set to the base position shown in FIG.

Thereafter, the motor 62 of the detection means drive mechanism 60 is driven to rotate the feed screw shaft 63, and the movable member 66 is moved to the edge 238 of both winding sleeves 21A and 21B. When the edge 23A of the web 2LA in use is detected by the first detection stage 25, the motor 62 is stopped at this position.

After the motor 62 of the detection means drive mechanism 60 is stopped, the winding support member drive mechanism 40 is activated by the action of the control mechanism 50.
The servo motor 41 is driven in the opposite direction to that described above to move the rod-shaped center 31 to the right.

By moving the rond-like center 31 to the right, a new web 2 is created.
1B also moves to the right against the biasing force of the elastic support center 32, and when the edge 23B of this paper web 21B comes into contact with the operating lever 27 of the second detection means 26 and this contact is detected, the control mechanism 5o, the motor 41 is stopped. As a result, the edge 23A of the used web 21A and the new web 2
The edge 23B of 1B is aligned with the edge 23B.

At this time, if the paper width of the new paper roll 21B is narrower than the paper width of the paper roll 2LA in use, which is just below the standard limit, the paper width of the paper roll 21B in use is smaller than the paper width of the paper roll 2LA in use. If one edge 23B of the new web 21B is made to coincide with the edge 23A of the negative force of A, the difference in paper width will be concentrated on one side, which will be rather inconvenient. Therefore, in such a case, both roll papers 21A2]. The difference in the paper width of B is visually checked, and the motor 41 is moved using the 1,000-step input 51 to move the new web 21B to the left by a predetermined amount to bring the haze of the edge 238 into an appropriate state.

As described above, the edges 23A of both webs 21A and 21B are
．． After the position adjustment of 23B is completed, the detection means drive mechanism 6
0 motor 62 is driven in the opposite direction to that described above, and the first and second detection means 25, 26 are moved back by a predetermined amount in a direction away from the webs 2LA, 21B.

After a predetermined period of time has elapsed after the first and second detection means 25 and 26 started to retreat, the control mechanism 50 causes a new one-shot paper 21. F is pre-rotated by a drive device (not shown). When this rotation reaches a predetermined speed, similar to normal paper splicing, the arm drive cylinder 15 of the paper splicing device 10 is driven to move the paster arm 13 to a new winding position 2 1. Rotate it to the B side, and press the air cylinder 19.
The brush roller 18 drives the paper roll 21A that is currently in use to create a new paper roll 21. Press 8 to complete the paper splicing.

This embodiment as described above has the following effects.

That is, prior to splicing by the paper splicing device 10, the edge 23A of the paper roll 21A in use and the edge 23B of the new paper roll 21B are aligned, so that the spliced portion is attached to the plank of the printing machine, etc. There is no contact with the ink accumulated on both sides of the ink, and no breakage occurs at the joint. In addition, both roll papers 21A. Edges 23A, 23B of 21B
The position ■ 9 is automatically adjusted by the control mechanism 50 based on the signal from the second detection means 26 based on the position based on the signal from the first detection stage 25, so the operator's skill etc. can be adjusted reliably and easily without the need for

Furthermore, the device of this embodiment can be easily incorporated into a general paper splicing device, and the conventional device can be easily improved. Further, the control mechanism 50 is provided with an input means 51, and since the motor 41 of the web support member drive mechanism 40 can be manually kept stationary by a predetermined amount, both webs 21A,
The edges 23A and 23B of 21B can be aligned more completely.

Furthermore, the mounting plate 72 that supports the second detection means 26 has a
Since the position of the winding sleeve 21 can be finely adjusted along the axial direction, the operating position of the operating lever 27 of the second detection means 26 can be set accurately.

A second embodiment of the invention is shown in FIGS. 4 and 5. Here, components of this embodiment that are the same or equivalent to those of the first embodiment are given the same reference numerals as those of the above embodiment, and their explanations will be omitted or simplified.

This embodiment is different in the detection method using the first and second detection stages 25 and 26 and in the driving method of the motor 41 of the roll support member drive machine 40.

In FIGS. 4 and 5, the first and second detection means 25 and 26 according to this embodiment are both provided with reflective photosensors, and both are not in contact with the webs 21A and 21B. In addition, the motor support stand 61 of the detection means drive mechanism 60
A potentiometer 80 as a feed amount detection means is attached to the actuating rod 8 of the potentiometer 80.
1 is attached to a movable member 66. This allows the potentiometer 80 to detect the amount of movement of the movable member 66 and, by extension, the amount of feed of the first and second detection means 25,26.

In this embodiment configured as described above, when automatically aligning the paper edges, the new paper roll 21B is not shifted to the left in advance as in the previous embodiment, and its edge 23B is It is set at a position that is considered to be approximately equal to the end 8!23A of Gion 2LA.

In this state, the motor 62 of the detection means drive mechanism 6o
is driven at high speed, and the first and second detection means 25, 26 are advanced toward the webs 21A, 21B in rapid forward motion. Along with this advancement, both the first and second detection means 25 and 26 are ON, that is, when the paper roll 2 is in use and when the paper roll 2 is new.
After detecting the edges 23A, 23B of 1A, 21B, the motor 62 is stopped after a short predetermined period of time has elapsed.

Next, the control mechanism 50 causes the motor 62 of the detection means drive mechanism 60 to reversely rotate at a very slow speed, and the first and second detection means 2
5.26 is slowly retreated.

With this backward movement, when each of the first detection means 25 and the second detection means 26 reaches ○FFL, the position thereof is read by the button maker 80 and stored in the control mechanism 50.

When both the first and second detection means 25.26 are turned off, the motor 62 is fast-forwarded by a command from the control means 5o, and the first and second detection means 25.26 are moved at high speed to both the webs 21A, 21B. I am retreating from there.

Based on the difference in the memorized positions of both the detection means 25 and 26, the control mechanism 50 detects whether the paper rolls 21A, 21 are in use or new.
．． 8 is calculated, and based on this calculation amount, the motor 4 of the web support member drive mechanism 40 is
1, a drive command is issued in a direction to eliminate the difference in position.

As a result, the motor 41 is driven to generate a new web 2.
1. The edge 23B of the roll paper 8 will be aligned with the edge 23A of the roll paper 21A in use.

In this way, the edge 23A of both roll papers 21A, 21B
, 23B, but as in the first embodiment, if this alignment is inconvenient, manual means 51
Manually adjust the position using .

Even in such a second embodiment, the same effects as in the previous embodiment can be achieved.

In addition, in this embodiment, since reflective photosensors are used as the first and second detection means 25 and 26, respectively, both detection means 25 and 26 are connected to each other. l
IA and 21B are not in contact with each other, and the paper 0;i; is not damaged. In particular, in the first embodiment, the first detection stage 25 is shaped like a U-shape, and the edge 23B of the web 21A in use must be inserted into this U-shape. If the paper 21A wobbles, there is a high possibility that the edge of the paper will come into contact with the first detection means 21, but in this embodiment, there is no such possibility.

It should be noted that the present invention is not limited to the above embodiments, and modifications and improvements within the range that can achieve the purpose of the present invention are possible.
It is included in the present invention.

For example, in each of the embodiments described above, the first and second detection means 25.26 were provided only at one end side of the webs 2LA and 21B, but these first and second detection means 25.26 They may be provided at both ends of the rolls 21A and 21B. When provided at both ends in this way, each edge is detected, the difference between each edge is detected, and these detected values are calculated by the control stage 50. 4. The paper roll support member driving mechanism 40 can be controlled so that the difference between the paper rolls and the roll paper is distributed equally between the two paper rolls. In this way, the control i wholesale is more) ゜go-9 ;+,'t:
II(;θ;1l: Automatic alignment can be performed.

Furthermore, in each of the embodiments described above, the first and second detection means 25.
26 are each composed of one photosensor or limit switch, but the invention is not limited to this, but the photosensors can be composed of a CCD array arranged slightly longer than the paper width of 2L of paper roll, so-called EPC, CPC, etc. Both edges 23 of the web 2l may be detected simultaneously.

Furthermore, in each of the above embodiments, one motor 62 is used as the drive source for the detection means drive mechanism 60, but the present invention is not limited to this, and the first detection stage 25 is On the other hand, a separate drive source for relatively moving the second detection means 26 is provided, and first, the motor 62 is driven so that the end edge 23A of the web 21A that is being used by both the first and second detection means 25 and 26 is provided. After detecting, the second detection means 26 is driven by the separate drive source to generate a new paper roll 21B.
The end edge 23B of the web support member driving mechanism 40 may be detected, and the driving of the motor 41 of the web support member driving mechanism 40 may be controlled based on the feed amount of the second sensing means 26 by this separate drive source.

Further, in the embodiment described above, the roll paper support member drive mechanism 40 was provided on each of the 21151 arms 11 and configured to rotate together with the two-arm arm 21, but the roll paper support member drive mechanism 40 was placed on the paster position side. On the other hand, the rod-shaped center 3l of the web support member 30 is provided so that its position can be fixed with respect to the two-arm arm 11.
In addition, the rack 44 and the binion 43 are detachably provided,
Thereby, only the paper roll support member 30 located at the base position may be driven by the paper roll support member drive mechanism 40.

〔Effect of the invention〕

According to the present invention as described above, it is possible to automatically align the edges of the used paper roll and a new paper roll, and it is possible to effectively prevent breakage due to interference with a printing machine.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a perspective view showing the overall structure, FIG. 2 is a side view thereof, and FIG. 3 is a detection means drive mechanism. 4 and 5 show a second embodiment of the present invention, FIG. 4 is a schematic plan view showing the overall configuration, and FIG. 5 is a side view of the main parts. . 10...Paper splicing device, 21...Wrap paper, 2LA...
- Rolling paper in use, 21B...New rolling paper, 23A
23B... Edge, 25... First detection means, 26.
...Second detection means, 30...Wrap paper support member, 40
... Roll support member drive mechanism, 41... Servo motor, 50... Control mechanism, 60... Detection means drive mechanism, 62... Motor as one drive source, 80...
Potentiometer as a feed amount detection means.

Claims (4)

[Claims] (1) A web support member that rotatably supports the web and is movable in the axial direction of the web, a web support member drive mechanism that drives the web support member in the axial direction of the web, and a first detection means capable of detecting the position of at least one edge; a second detection means capable of detecting the position of at least one edge of a new web to be replenished; a detection means driving mechanism for advancing and retracting the detection means relative to the edge of the used or new web; and a web supporting member driving mechanism for driving the web support member based on signals from the first and second detection means to drive the web for use. 1. An automatic paper edge aligning device for printing paper, comprising a control mechanism for aligning the edge of the paper and the edge of a new roll of paper at predetermined positions. (2) In claim 1, the first detection means is an optical detection means having a light-emitting element and a light-receiving element disposed across the running edge of the web in use; The second detecting means is a contact type detecting means disposed near the outer circumferential side of the winding diameter of the new web, and the control mechanism controls the web support member drive mechanism of the new web in advance.
is driven a predetermined amount in the direction away from the detecting means, and the first and second detecting means are simultaneously advanced toward both the web sides, so that the first detecting means detects a detection signal of the edge of the web being used. Based on this, the forward movement of the first and second detecting means is stopped, while the web supporting member drive mechanism of the new web is driven toward the second detecting means, and further, the second detecting means detects the new web. An automatic paper edge aligning device for printing paper, characterized in that the device is configured to stop driving the web support member drive mechanism of the new web by detecting the edge of the web. (3) In claim 1, the detection means driving mechanism includes one drive source that simultaneously drives the first and second detection means, and a feed amount that detects the feed amount of both detection means by this drive source. a detection means, and the first and second
The detection means is arranged on the same straight line substantially parallel to the edge of the paper roll, and the detection position of the edge of the paper roll in use by the first detection means that moves based on the drive of the detection means drive mechanism; Similarly, the feed amount detection means detects a difference between the detected position of the edge of the new web by the second detection means,
An automatic paper edge alignment device for printing paper, characterized in that a control mechanism drives and controls the web support member drive mechanism based on a signal from the feed amount detection means. (4) In any one of claims 1 to 3, the first
, the second detection means are respectively provided at the edges of both the used web paper and the new web paper, and the control mechanism is configured to detect the first detecting means provided at both edges of each web paper, respectively.
An automatic paper edge aligning device for printing paper, characterized in that it is configured to drive a paper roll support member drive mechanism to align both paper rolls based on a signal from the second detection means.