JPH0714775B2 - Automatic paper splicing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic paper splicing device, and more particularly, to moving a new paper roll when automatically splicing new and old paper rolls in a paper feed section of a rotary printing press. The present invention relates to a paper splicing device capable of performing smooth paper splicing in synchronization with the feeding speed of old webs by accelerating rotation by engagement with possible acceleration means.

[Prior Art] In a rotary printing machine, for example, as a conventional paper splicing device, (a) JP-B-63-56143 and (B) JP-A-57-1.
The 56943 publication is known.

The device (a) is a device that automatically cuts the old and old paper rolls by cutting them near the final position without detecting the edge of the paper.

On the other hand, in the device (b), the old and new webs are crimped by detecting the condition that the paper roll is gone by the photoelectric tube, and the web storage device is provided to replenish the running web while the new web accelerates from the stopped state to the predetermined speed. It is configured as follows.

More specifically, as shown in FIG. 5, this type of paper splicing device rotatably supports the old and new paper rolls 18 and 20 on the paper feed arm 16 and also has an automatic paper splicing device 26 in the paper feed direction of these paper rolls. And a web storage device 40 arranged in the vicinity thereof.

In this case, in the web storage device 40, a plurality of guide rollers 44, 44 ... Are fixed to the lower side of the guide column 42, and a plurality of dancers are arranged on the moving body 46 that moves vertically facing the guide rollers 44. Rollers 48, 48 are provided, and both rollers 44, 48
A web (storage loop) 50 is stored in zigzag in the meantime. Then, the moving body 46 moves up when it becomes faster than the delivery speed to the storage portion, and moves down when it becomes smaller on the contrary.

A guide roller 52, a tension detection roller 54 for detecting the tension of the web, an acceleration roller 56, and a nip roller 58 are provided in front of the zigzag traveling path, and in order to store the web in the web storage device 50, the web from the web is wound. The web 50 is sandwiched between the nip roller 58 and the acceleration roller 56 so as to be accelerated. In this case, the braking force is given to the rotation of the web by the electromagnetic brake being activated by the signal from the tension detecting roller 54.

[Problems to be Solved by the Invention] The automatic paper splicing device 26 configured as described above is a crimping brush.
Since the swing frame 28 to which the 30 is attached is configured to be rotatable, it has a drawback that an impact is generated when the web is pressure-bonded. Further, the web splicing device is provided with a web storage device 40. It is difficult for the moving body 46 supporting the plurality of dancer rollers 48 provided in the above to synchronize the tension of the web in accordance with the winding diameter and the speed of the air pressure for controlling the movement of the moving body 46, and the storage. The meandering of the web easily occurs when the moving body 46 moves up and down in the device, and since a large number of rollers are used, the entire device becomes large and the floor area occupied by the device is large and the manufacturing cost is unnecessarily high. Had.

Therefore, an object of the present invention is to make a gear of a rotation transmission mechanism mesh with a gear driven by an accelerating means provided at one end of an oscillating arm on the side of a new winding paper to instantaneously accelerate and rotate the gear. , It is possible to synchronize the new paper-feeding speed with the old paper-feeding speed in a short time, and even if the acceleration device after paper splicing is stopped, the tension is not applied to the fed-out paper automatically and accurately. An object is to provide an automatic paper splicing device having a simple structure that can reliably splice paper.

[Means for Solving the Problems] In order to achieve the above-mentioned object, an automatic paper splicing device according to the present invention has a plurality of winding support portions (rotatably supporting at least two old and new winding paper rolls (18, 20)). 66, 64) and a rotation transmission mechanism including a gear (99, 101) for rotationally driving the winding support portion at both ends of the arm, and a winding support arm (60 having the center portion supported by the indexing shaft (62). ) And guide rolls (70, 72, 74, 76) for guiding the winding papers fed from at least two old and new winding paper rolls (18, 20) supported at both ends of the winding support arm, respectively. And a guide roll arm (68), and crimping means (95) for crimping the new winding paper (77) and the old winding paper (78) fed from the old and new winding paper rolls (18, 20), respectively. Rolled from the old paper roll (20) supported at one end of the support arm. A new paper roll (77) fed out from the new paper roll (18) supported by the other end of the winding support arm for the old paper roll (78) by detecting the paper end of the old paper roll (78) to be taken out.
In an automatic paper splicing device of a rotary printing press configured to automatically splice paper, a gear (99, 101) of a rotation transmission mechanism of old and new web rolls (18, 20) at both ends of the winding support arm (60). ) And a gear (110) capable of selectively meshing with the gear (110) at one end thereof, and the gear (110) swingably engages and disengages with the gear (99) of the rotation transmission mechanism on the side of the new paper roll (18). A swing arm (106) having a swing means (104) for moving is provided, and the gear (110) provided at one end of the swing arm (106).
On the other hand, the oscillating arm (106) is provided with an accelerating means (100) for instantaneously rotationally driving the unidirectional rotation clutch (112), and a signal for operating the accelerating means (100) is supplied. A detection means (79) for detecting the paper edge of the old paper roll (78) that is generated is provided, and the rotation transmission mechanism on the side of the new paper roll (18) is used to feed the old paper roll (78) from the old paper roll (20). It is characterized in that it is configured to control the acceleration and rotation so as to be synchronized with.

In the automatic paper splicing device, the acceleration means (100)
Is a pneumatic cylinder (108) provided on the swing arm (106) and has a gear (11) axially supported at one end of the swing arm (106).
0) engage the one-way rotation clutch (112),
A lever (113) is supported by the rotary clutch, and the pneumatic cylinder (108) is coupled so as to operate the lever, and the lever is rotated by the operation of the pneumatic cylinder to rotate the gear (99). It can be configured to be rotationally driven.

Further, the accelerating means (100) comprises a pneumatic cylinder (108) provided on the swing arm (106), and a rack is fixed to a rod (114) of the pneumatic cylinder (108). Provided with a guide plate for guiding the rack,
The rack is engaged with the gear (99) of the rotation transmission mechanism provided on the winding support arm (60), and the rotation of the rotation transmission mechanism on the side of the new take-up roll (18) is linearly moved by the operation of the pneumatic cylinder. Can be configured to be driven to rotate.

[Action]

According to the automatic paper splicing device according to the present invention, the gear of the rotation transmission mechanism of the winding support arm is engaged with the gear of the accelerating means via the swing arm on the side of the new paper roll, and the end of the old paper is signaled. At the same time as the splicing of the feeding end of the new paper roll from the new paper roll, the rotation transmission of the new paper roll side is performed so that the speed of the new paper roll is at least slightly higher than the feeding speed of the old paper roll from the old paper roll. By instantaneously controlling the mechanism to accelerate, it becomes possible to synchronize the feeding speed of the old paper roll from the old paper roll with the feeding speed of the new paper roll from the new paper roll in a short time. By providing the directional rotation clutch, the drive device does not stop after the paper is spliced and does not become a resistance to the feeding speed of the paper roll, and the tension is not applied to the paper roll without causing excessive tension. Accurately automatically during the paper traveling, yet reliable splicing can be performed.

〔Example〕

Next, an embodiment of an automatic paper splicing device according to the present invention will be described in detail below with reference to the accompanying drawings.

For convenience of explanation, the same components as those of the conventional configuration shown in FIG. 5 are designated by the same reference numerals, and detailed description thereof will be omitted.

1 and 2 are schematic configuration diagrams showing an embodiment of an automatic paper splicing device according to the present invention. Incidentally, the printing object in the rotary printing machine includes films such as cellophane and polyethylene as in the gravure printing machine in addition to the roll paper (these are generally referred to as webs), but in this specification, for simplification of description. , Use the word "roll paper".

In FIGS. 1 and 2, reference numeral 60 indicates a winding support arm (hereinafter, referred to as arm 60).
Is composed of a pair of arms 60a and 60b (see FIG. 2) of the same shape, and is rotatably supported by an indexing shaft 62 at the center. At both ends of the arm 60, support shafts 64 and 66 as winding paper support portions are respectively arranged so that the winding paper rolls 18 and 20 wound with the winding paper can be rotatably mounted. A rotation transmission mechanism is provided in each of 64 and 66. In this embodiment, the new paper roll 77 is wound around the one paper roll 18 and the old paper roll 78 is wound around the other paper roll 20.

Further, at each end of each of the support shafts 64 and 66, gears 99 and 10 of a rotation transmission mechanism that mesh with a gear 110 of an accelerating means 100 described later.
1 is provided.

A tension roll (not shown) is provided so that an appropriate tension can be applied to each of the paper rolls fed from the paper rolls 18 and 20, and the speed of the paper roll that is accelerated by the decrease in the diameter of the paper roll that changes with time is braked. Therefore, brakes B ₁ and B ₂ are provided on the support shafts 64 and 66, respectively. As will be described later, when printing is started, the paper roll is continuously taken up by the take-up device after printing in the printing section, so the paper rolls 18 and 20 during printing are supported by the support shafts 64 and 66. It is configured to rotate freely by idling.

Next, the guide roll arms 68, 68 whose ends are bent and formed in an L shape in a direction orthogonal to the longitudinal direction of the arm 60 supporting the paper rolls 18, 20 are point-symmetric with respect to the indexing shaft 62. And the cross-shaped arm 61 is configured by this.

At the free ends of the guide roll arms 68 facing each other, guide rolls 70, 72 and 74, 76 having a small diameter are provided.
And rotatably arranged to guide the old paper roll 78, which is pulled out from the old paper roll 20 being printed and fed out by these guide rolls, toward the crimping means 95 of the paper feed section.

As shown in FIG. 2, the indexing shaft 62 of the cross-shaped arm 61 is
A worm gear 63 is fixed to one end of the indexing shaft 62
Is configured to rotate by a worm 65 which meshes with the worm gear 63 and is rotationally driven by a reduction motor 67.

In this case, in FIG. 1, the guide rolls 74 and 76 guide the old paper roll 78 fed from the old paper roll 20, but the cross arm 61 rotates clockwise after the paper is spliced.
The guide rolls 70 and 72 guide the new paper roll 77 rotated by 180 degrees and then fed out from the new paper roll roll 18.

Next, as shown in FIG. 1, the new winding paper 77 fed out from the new winding paper roll 18 which is standing by for printing and is still is leveled through the guide roll 84 arranged close to the old winding paper 78. Extending in the direction. A vacuum suction roller 86 is rotatably and vertically rotatably supported by the tip of a piston rod 90 of a double-acting cylinder 88 on the side of the guide roll 84, which serves as the pressure bonding means 95, on the side where the rolled paper is fed.

The vacuum suction roller 86 has a large number of suction holes (not shown) formed in a line on the surface thereof, and the vacuum suction roller 86 is connected to a vacuum source through an appropriate rotary seal mechanism to suck the suction. The end portion of the new paper roll 77 drawn out from the new paper roll 18 by the holes is vacuum-held and held. One side of the double-sided tape 92 is attached in advance to the vicinity of the end of the new paper roll 77, that is, the surface facing the old paper roll 78. The double-acting cylinder 88 (the air circuit is not shown) operates by receiving a signal from a detecting means 79 described later, and normally, as shown in the figure, the piston rod 90 is lifted to move the vacuum suction roller 86 to the paper. It is made to stand by at the splicing position, and is configured so as to descend only at the time of preparation for splicing the paper (position indicated by a chain double-dashed line).

At a position opposite to the vacuum suction roller 86, a new paper roll 77 and an old paper roll 78 are sandwiched, and a counter roller 94 is disposed in close proximity thereto. This counter roller 94 is vertically movable at the tip of a piston rod 98 of a double-acting cylinder 96. It is supported.

Further, the photoelectric detection means 79, in the traveling path of the old paper roll 78,
Photoelectric detection means attached to both ends of the guide roll arm 68 so as to detect the unrolled paper end of the old paper roll 78 fed from the old paper roll 20 and detect this paper end.
The signal of the acceleration start condition is transmitted from 79 to the acceleration means 100 described later. Incidentally, the photoelectric detection means 79
For this, a non-contact type detecting means such as a photoelectric switch or a proximity switch is used, but a contact type detecting means such as a limit switch may be used.

Next, the accelerating means 100 will be described with reference to FIGS.
It will be described with reference to the drawings.

That is, in FIG. 1, FIG. 3, and FIG.
100 indicates an acceleration means, and this acceleration means 100 has one end
Due to the action of the double-acting cylinder 104 as the swinging means at the center of the 102, the end position of the support shaft 66 indexed to the standby position shown by the chain double-dashed line (FIG. 1) and the mounting position of the new paper roll 18 is shown. It is provided at the other end of a swing arm 106 (hereinafter referred to as an accelerator arm 106) that is swingably supported between the rotation transmission mechanism and a gear 99.

The accelerating means 100 includes a drive gear 110 rotatably supported at the tip of the accelerator arm 106, a double-acting cylinder 108 that rotationally drives the drive gear 110, and the double-acting cylinder 108.
And a one-way rotation clutch 112 that engages so that rotation can be transmitted only in one direction. The one-way rotary clutch 112 engages the drive gear 110 on the output side thereof, and the lever 113 on the input side is supported on the side surface of the case of the clutch 112, and the double-acting cylinder 108 (pneumatic It is configured to be pivotally supported by a piston rod 114 of a cylinder) and a turn bag 116.

Further, on the side surface of the accelerator arm 106, a cylinder 107 pivotally supported so as to be swingable and a locking arm 111 which is rocked by the cylinder 107 are provided.
11 is a pin 109 provided at one end of the winding support arm 60.
(See FIG. 3).

Next, the configuration of the roll supporting portion that supports the old and new paper rolls 18 and 20 will be described in detail with reference to FIG.

FIG. 2 shows a view on arrow A in FIG. In FIG. 2, support shafts 66a and 66b that rotatably mount the new paper roll 18 are disposed on the left and right at a pair of free ends of the take-up support arm 60, and one of the support shafts 66b is a new paper roll. Roll 18
In contrast, it is provided so that it can be moved back and forth by operating the handle 120,
The support shaft 66b is moved by 1/2 the difference between the roll widths for positioning, and the cone portion 69b at its tip is pressed into one of the center holes of the new paper roll 18 and then the other is actuated by an actuator (not shown). The cone portion 69a at the tip of the support shaft 66a is pressed against the other center hole, whereby the new paper roll 18 is pressed and held between the support shafts 66a and 66b.

Next, the paper splicing operation of the apparatus of this embodiment having the above-mentioned configuration will be described.

First, at the mounting position of the new paper roll 18, the support shaft 66 of the indexed winding support arm 60 is attached to the new paper roll 18
Put on. After that, the end of the new paper roll 77 pulled out from the new paper roll 18 is moved to the vacuum suction roller at the lowered position.
After vacuum suction and holding in the intake hole of 86, the paper edge of the new paper roll 77 with the double-sided tape 92 attached to the side facing the old paper roll 78 is lifted to the vicinity of the running path of the old paper roll 78 and is on standby.

Then, the accelerator arm 106 at the standby position is swung by the operation of the double-acting cylinder 104, and the drive gear 110 at the tip end thereof is meshed with the gear 99 which is the drive means at one end of the support shaft 66. In this case, the swinging locking arm 111 is locked to the pin 109 provided at one end of the winding support arm 60 holding the gear 99 by the double-acting cylinder 107 pivotally supported on the side surface of the accelerator arm 106. Then, the accelerator arm 106
The engagement between the drive gear 110 and the gear 99 of the winding support arm 60 is stably maintained. Thereafter, a detection signal from the detection unit 79 that detects the paper edge of the old paper roll 78 fed from the old paper roll 20 causes the counter roller 94 located at a position opposed to the vacuum suction roller 86 to descend to perform the paper splicing. .

Further, at the same time, the supporting shaft 66 supporting the new paper roll 18 is accelerated and rotated by actuating the double-acting cylinder 108, and at least slightly exceeds the feeding speed of the old paper roll 78 fed from the old paper roll 20. Rotate and drive to the speed.

In this case, the acceleration by the double-acting cylinder 108 causes a time difference due to the difference in the inertial force due to the size of the paper roll until it completely reaches the predetermined speed range within the predetermined time, and the acceleration is changed to synchronize with these speeds. However, this can be done by adjusting the air pressure with an air regulator or the like. However, in the case of adjusting the air pressure, it is difficult to completely synchronize with the winding diameter and speed of the paper roll, and immediately before the acceleration by the double-acting cylinder 108 in the accelerating means 100 is completed, the drive gear 1
If the meshing between 10 and the gear 99 of the rotation transmission mechanism of the take-up support arm 60 is not released, the take-up paper roll 18 suddenly stops and the paper is cut.

In addition, a one-way rotation clutch 112 provided between the drive gear 110 at the tip of the accelerator arm 106 and the double-acting cylinder 108.
As a result, the clutch 112 idles with respect to the rotational force from the side of the new paper roll 18, so that even if the timing of disengagement from the drive gear 110 is missed, the above-described adverse effects occur. There is no.

Furthermore, by making it possible to selectively switch the operating direction of the one-way rotation clutch 112 by the switching lever 118, it is easy to reverse the feeding direction of the paper roll fed from the paper roll to easily change the front and back sides of the printing surface. Can respond.

In addition, in the above-described embodiment, it is possible to use a rack that moves straight instead of the drive gear 110 that constitutes the acceleration means 100. In this case, the winding support arm 60
After limiting the tooth section of the rack that meshes with the gears 99 and 101 provided at both ends of the gear and rotating the gear to a predetermined state, disengage the gear from the rack and let the gears 99 and 101 idle. With this configuration, a clutch function can be provided.

In this way, by accelerating the rotation transmission mechanism on the side of the new paper roll 18, the feeding speed of the new paper roll 77 can be synchronized with the feeding speed of the old paper roll 78 fed from the old paper roll 20 in a short time. In addition, even if the take-up speed of the web is changed during splicing, excessive tension is not applied to the web, and the paper can be spliced automatically and accurately while the web is running. it can.

〔The invention's effect〕

As is apparent from the above-described embodiments, according to the automatic paper splicing device of the present invention, a plurality of winding support portions that rotatably support at least two old and new winding paper rolls and the winding support portions are rotationally driven. A winding support arm having a rotation transmission mechanism including a gear at each arm end, and a center portion supported by the indexing shaft, and at least two winding support arms supported by the winding support arm.
A guide roll arm provided with a guide roll for guiding the winding paper fed out from each of the new and old winding paper rolls in the sheet feeding direction, and a gear capable of meshing with the gear of the rotation transmission mechanism on the side of the new winding paper roll is provided at one end, A swing arm having a swing means for swingably swinging the gear with respect to the gear of the rotation transmission mechanism, and an acceleration means provided on the swing arm for driving the gear of the swing arm to rotate. The drive means is provided with a one-way rotation clutch for transmitting a rotational force only in the paper feeding direction to the drive means, and a crimping means for crimping the new web is provided, so that the feeding speed of the old web is increased. It is possible to synchronize the feeding speed of the new paper roll in a short time, and the tension force does not act on the fed paper roll even if the accelerating means after paper splicing is not rapidly released by the pressure bonding means. Accurate and reliable automatic paper splicing can be performed while running, and a storage device consisting of many dancer rollers as in the past is not required, which makes the entire device simple and compact, and saves space. Can be achieved.

Although the preferred embodiments of the present invention have been described above, the present invention may be arranged such that a rotary actuator is provided on the drive gear side via a one-way rotation clutch instead of the double-acting cylinder that drives the accelerating means. The structure of the paper splicing device is not limited to the embodiment described above, and it goes without saying that various design changes can be made without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an automatic paper splicing device showing an embodiment of an automatic paper splicing device according to the present invention, and FIG. 2 is an AA of FIG.
FIG. 3 is a side view of the accelerating means, which is an essential part of the present invention, FIG. 4 is a partially enlarged view showing a one-way rotation clutch provided in the driving means, and FIG. FIG. 10 ... Paper feeding device, 16 ... Paper feeding arm 18 ... New winding paper, 20 ... Old winding paper 26 ... Automatic paper splicing device, 28 ... Oscillating frame 30 ... Crimping brush 40 ... Web storage device, 42 ... Guide post 44 ... Guide roll , 46 ... Moving body 48 ... Dancer roller, 50 ... Web 52 ... Guide roll, 54 ... Tension detecting roller 56 ... Accelerating roller, 58 ... Nip roller 60, 60a, 60b ... Winding support arm 61 ... Cross arm, 62 ... Split Output shaft 63… Worm gears 64, 66, 66a, 66b… Support shaft 65… Worm, 67… Deceleration motor 68… Guide roll arm 69a, 69b… Cone 70, 72, 74, 76… Guide roll 77, 78, 80 , 82… Web roll 79… Detecting means, 84… Guide roll 86… Vacuum suction roller, 88… Double acting cylinder 90, 98… Piston rod 92… Double sided tape, 94… Roller 95… Crimping means, 96… Double acting cylinder 99, 101… Gears, 100 ... Accelerating means 102 ... Pivots 104, 107, 108 ... Double-acting cylinder 106 ... Swing arm (accelerator Arm) 109 ... pin, 110 ... driving gear 111 ... lock arm, 112 ... one-way rotation clutch 113 ... lever, 114 ... piston rod 116 ... Tanbakuru, 118 ... switching lever 120 ... Handle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takehiko Fukushi 4-5676, Hibarigaoka, Zama City, Kanagawa Prefecture Sagami Plant, Toshiba Machine Co., Ltd. (56) Reference JP-A-61-226442 (JP, A) JP-A-57 -156943 (JP, A) Japanese Patent Sho 63-56143 (JP, B2)

Claims (3)

[Claims] 1. At least two old and new paper rolls (18,2).
0) rotatably supporting a plurality of winding support parts (66, 64)
And a winding support arm (60) in which a rotation transmission mechanism including a gear (99, 101) for rotationally driving the winding support part is provided at both ends of the arm, and the center part is supported by the indexing shaft (62).
And guide rolls (70, 72, 7) for guiding the webs fed from at least two old and new web rolls (18, 20) supported at both ends of the take-up support arm in the paper feed direction.
Guide roll arm (68) equipped with 4,76) and new paper roll (7) respectively fed from the old and new paper rolls (18,20).
A paper end of the old paper roll (78) that is fed from the old paper roll (20) supported by one end of the winding support arm, and is provided with a crimping means (95) for crimping the old paper roll (78) and the old paper roll (78). And a new paper roll (77) fed from a new paper roll (18) supported at the other end of the winding support arm is automatically spliced to the old paper roll (78). In the automatic paper splicing device of the rotary printing machine, the gears (110, 110) capable of selectively meshing with the gears (99, 101) of the rotation transmitting mechanism of the old and new paper rolls (18, 20) at both ends of the winding support arm (60) are formed. ) Is provided at one end, and a swinging means (104) for swinging the gear (110) with respect to the gear (99) of the rotation transmission mechanism on the side of the new paper roll (18) in a detachable manner. A moving arm (106) is provided, and the gear (110) is provided at one end of the swing arm (106).
On the other hand, the oscillating arm (106) is provided with an accelerating means (100) for instantaneously rotationally driving the unidirectional rotation clutch (112), and a signal for operating the accelerating means (100) is supplied. A detection means (79) for detecting the paper edge of the old paper roll (78) that is generated is provided, and the rotation transmission mechanism on the side of the new paper roll (18) is used to feed the old paper roll (78) from the old paper roll (20). An automatic paper splicing device characterized by being configured so as to control acceleration and rotation so as to be synchronized with. 2. The accelerating means (100) includes a swing arm (10).
6), a one-way rotary clutch (112) is engaged with a gear (110) that is supported by one end of an oscillating arm (106), and a lever ( 113) is supported and the pneumatic cylinder (108) is coupled to operate the lever, and the lever is rotated by the operation of the pneumatic cylinder to rotationally drive the gear (99). The automatic paper splicing device according to claim 1. 3. The accelerating means (100) includes a swing arm (10).
6) is provided with a pneumatic cylinder (108), a rack is fixed to a rod (114) of the pneumatic cylinder (108), a guide plate for guiding the rack is provided on the swing arm, and the rack is mounted. It meshes with the gear (99) of the rotation transmission mechanism provided on the take-up support arm (60), and the rotation of the rotation transmission mechanism on the side of the new take-up roll (18) is driven by the straight movement of the rack by the operation of the pneumatic cylinder. The automatic paper splicing device according to claim 1, wherein the automatic paper splicing device is configured to: