JPH0651541B2 - Method and device for gluing roll paper and aligning splicing paper - Google Patents

Description

The present invention relates to a web processing apparatus such as a rotary printing machine, a coater, and a corrugator, and a paper feeding device for feeding a web to a consuming machine, in which a web end of an old web (paper that is being fed) ends. When gluing the web edge of the new web (paper in standby) to the web edge of the new web, glue the web edge of the new web, or join the glued parts together. Alignment method and apparatus.

A paper feeding device for feeding paper to a rotary printing machine or the like loads two rolls of old and new roll-shaped web into the device, and if the old web is consumed by a predetermined amount, the front end of the web of the old web is replaced with the web of the old web. The old web is cut by adhering it to the rear end, and the supply from the new web is switched, and a new web is loaded instead of the old web to prepare for the next switching.

Then, in the paper feeding device, when the web is spliced, the web of the splicing part is stopped to perform the splicing (referred to as zero or speed system), and a new paper roll to be used from now on is accelerated by rollers or the like. There is a method of splicing the paper by synchronizing the peripheral speed with the web speed of the running old web (called speed matching method). However, whichever method is used, it is necessary to form a gluing portion a on the front end portion of the web of the new paper roll for gluing, as shown in FIG.

If such a paste is applied to the front end of the web of the new paper roll, the paste will be dried before the splicing,
Therefore, conventionally, the glue is applied to the front end of the web of the new paper roll by hand just before the splicing. This is extremely inefficient and could not achieve full automation.

The present invention has been made in view of the problems of pasting and splicing in the above-described conventional paper feeding device, and when the consumption amount of the old paper roll reaches a predetermined amount, the web front end of the new paper roll is automatically obtained. An object of the present invention is to provide a method and apparatus for aligning a paper splicing position of a paper roll, which is capable of completely automatizing the paper splicing by rotating the parts to a paste bonding device and a bonding device to perform the paste bonding.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a side view showing the internal structure of an automatic paper splicing / feeding device incorporating a paper roll alignment device according to the present invention, and FIG. 2 is a front view showing the internal structure of the automatic paper splicing / feeding device. . The automatic paper splicing / feeding device includes a paper feed unit 1 that holds rolled paper and automatically splices paper one after another, and a web storage unit 2 for storing the web from the paper feed unit 1. Consists of. Frames 3 and 3 are arranged in the paper feed unit 1 at predetermined intervals.
And the rotary shaft 4 is inserted between the central portions of the frames 3 and 3 in the height direction, and the shaft 4 protruding from one frame 3
A gear 5 is fitted to the end of the frame 5, and the gear 5 and the gear 6 supported on the side surface of the frame 3 are engaged with each other.
A supporting plate 7 is protruded from the side surface of the motor, and the motor 8 fixed to the supporting plate 7 and the gear 6 are connected via a chain 9;
The shaft 8 is rotated by the motor 8.
Further, cams 10 and 11 are provided at the ends of the shaft 4 protruding from the other frame 3 so as to be spaced apart by 180 ° in the circumferential direction of the shaft 4 and to be slightly displaced in the longitudinal direction of the shaft 4, and these cams 1
The limit switches 12 and 13 mounted on the side surface of the frame 3 corresponding to the positions of the cams 10 and 11 are operated by 0 and 11. Paper feed arms 14 and 15 are attached to the shaft 4 at intervals with a space adjusting mechanism including a rack 60 and a pinion 61 interposed therebetween.

Sleeves 62, 62 are inserted into both ends of the paper feed arm 14, and the sleeve 62 is engaged with a groove 14b formed in a through hole 14a of the paper feed arm 14 via a pin 63 as shown in FIG. is doing.
A rotating shaft 65 is supported in the sleeve 62 by a bearing 64,
A chucking cone 66 is provided on the inner protruding end of the rotary shaft 65.
Is installed. Also, the protruding portion of the sleeve 62 to the outside
A male screw part is engraved on 67, and this protruding part 67 is a gear support.
It penetrates 68 and is screwed with a gear 69 in the gear support 68. This gear 69 is a motor fixed to the paper feed arm 14.
It meshes with a gear 71 fixed to the rotating shaft of 70. Then, by driving the motor 70, the sleeve 62 is moved in the left-right direction in the figure via the gears 71, 69, and accordingly, the rotary shaft 65 and the chucking cone 66 supported by the sleeve 62 are also moved. Move left and right.

Sleeves 77 are also attached to both ends of the paper feed arm 15, and the sleeve 77 has a pin 79 in a groove 15b provided in the through hole 15a of the paper feed arm 15.
Are engaged through. The sleeve 77 has a rack 80 in a part thereof, and the rack 80 and the pinion 81 mesh with each other. On the other hand, a cylinder unit 82 is provided on the side of the paper feed arm 15.
Is fixed, and a rack 83 (FIG. 2) provided at the tip of the rod of the cylinder unit 82 and a pinion 84 (FIG. 2) provided on the shaft of the pinion 81 mesh with each other. Thus, by driving the cylinder unit 82, the sleeve 77
Moves laterally. A rotation 86 is supported in the sleeve 77 via a bearing 85, a chucking cone 87 is provided at the inward protruding end of the rotating shaft 86, and an electromagnetic brake 88 is provided at the outward protruding end. It is connected to the motor 89 via.

Then, the chucking cones 66 and 87 are replaced with a new paper roll R.
New by inserting the _second core 30, old paper roll R _1,
R ₂ is held between both ends of the paper feed arms 14 and 15.

31 are provided on the shaft 4 and extend at intervals, and guide rollers 32, 32 for guiding the web W are supported on the arms 31.

A mark M for indicating the rotational position of the paper roll is provided on the outer peripheral portion of the end face of the new paper roll R ₁ , and photoelectric tubes 33, 34 for detecting the mark M are attached to the inner surface of the paper feed arm 15. There is.

A top plate 35 is attached between the upper portions of the frames 3 and 3, and a known pasting device 36 is provided at one end of the top plate 35. A sticking device 300 for sticking the pasted web of the new paper roll to the old paper roll is provided below the device 3.
00 has a rotation support plate 37 whose upper end is supported by a top plate 35, and the rotation support plate 37 is rotated by an air cylinder 38. Further, the rotation support plate 37 is provided with a brush for sticking and a knife 40 for cutting the old web W after sticking.

On the other hand, the web W unwound from the old paper roll R ₂ is guided by the guide roll 32 and the roller 41 provided at the upper end of the rotation support plate 37.
And is guided to the web storage unit 2 via various rollers 42. And the web storage has rollers facing each other.
43 and a dancer roller 44 are provided, the roller 43 is fixed, and the roller 44 is installed so as to be movable toward and away from the roller 43. The web W that has passed the rollers 43 and 44 is sent to a web processing consumer machine such as a rotary printing machine via the other rollers 45 and 46.

When the amount of the web W fed into the storage unit 2 is smaller than the amount of the web W delivered to the web processing consumer machine, the dancer roller 44 moves toward the roller 43 and the amount fed into the storage unit 2 is reduced. When the amount of delivery to the web processing consumer increases and the amount of delivery to the web processing consumer increases, the dancer roller 44 moves away from the roller 43, and the difference between the amount of delivery and the amount of delivery is absorbed. In addition, in order to make the feeding amount larger than the feeding amount, the web W is sandwiched between the nip roller 47 and the acceleration roller 48 to be accelerated.

Next, an electrical circuit diagram for aligning the paper edge so that the new paper roll R ₁ is located directly below the gluing device 36 will be described with reference to FIG.

AND circuits 102 and 103 are connected to the limit switches 12 and 13, and the limit switches 12 and 13 and the AND circuit 1 are connected.
Time relays 110 and 111 are provided between 02 and 103, respectively. Flip-flop circuits 106 and 108 are connected to the AND circuits 102 and 103, and motors 89 and 8 for rotating the paper rolls R ₁ and R ₂ in these flip-flop circuits.
9 is connected. On the other hand, the limit switches 12 and 13 are O
The OR circuit 104 is connected to the R circuit 104.
This AND circuit 10 is connected to the AND circuit 101 via
In 1, the start signal 200, which is issued when the web is consumed and the remaining amount becomes small, is input manually or automatically by turning on a switch (not shown) when the web reaches a certain amount. The drive motor 8 for rotating the paper feed arms 14 and 15 is driven by the output from the AND circuit 101.

The photocells 33 and 34 are connected to the flip-flop circuits 107 and 109, respectively.
7 and 109 are connected to rotary encoders 201 and 202 attached to the rotary shaft of the motor 89.
02 emits a pulse, which is a preset counter
Counted by 203, the automatic gluing device 36 is operated when the predetermined angle drive motor 89 rotates. At the same time, the output signals from the preset counter 203 are given to the flip-flop circuits 106, 107, 108 and 109, respectively, whereby the motor 89 is stopped and the pulse transmission of the rotary encoders 201 and 202 is stopped.

Next, an operating electric circuit of the sticking device 300 will be described with reference to FIG.

The pasting device 300 operates according to the output signal of the preset counter 203 to reach the operating position from the standby position. At this time, the paste preparation completion signal 210 is issued by hitting the limit switch of the frame of the pasting device 300, and this signal 210 is connected to the AND circuit 114. The AND circuit 114 has a brush of the pasting device 300.
Photocell 11 mounted so that it projects from the position 39 to the web side
The signal from 2 is input via the inverter 113. AND circuits 114 and 115 are further connected to the AND circuit 114. The AND circuit 115 has a winding paper rotation signal 211 (a reverse current is applied to the motor 89 of the old winding paper R ₂ to apply tension to the web. The presence or absence of a current is detected), and the drive motors 89, 89 are driven by the output signal from the AND circuit 115.

The operation of the automatic paper splicing and feeding device having the above configuration will be described below.

First, the alignment of the front end portion of the web of the new paper roll R ₁ will be described with reference to FIGS. 4 and 5. If consumption of old paper roll R ₂ is still small in a state of FIG. 5 (a), this time, the limit switches 12 and 13 does not operate because it does not engage the cam 10, 11. Therefore, although the inverter 105 outputs, the start signal 200 is not sent, so the AND circuit 1
01 is not output, the motor 8 does not operate, and the feeding arms 14 and 15 do not rotate. Then, when the consumption amount of the old paper roll R ₂ is suitable for the predetermined amount and the remaining amount becomes small, the old paper roll R ₂ at that time is consumed.
The start signal 200 (in the case of automatic) is emitted by detecting the diameter of. Then, the AND circuit 101 outputs and the motor 8 operates, and the paper feed arms 14 and 15 are rotated. Thus, as shown in FIG. 5 (b), if the center of the new paper roll R ₁ is moved from the point C to the point A cam 10 actuates the limit switch 12 in contact with the limit switch 12, the inverter 105
Output becomes zero and the rotation of the paper feed arms 14 and 15 is stopped. At the same time, a signal is sent to the AND circuit 102. Here, the time relay 110 is normally ON, has an input signal and turns OFF after a set time, and immediately returns ON when the input signal is OFF (ON delay, b contact). Therefore, when the limit switch 12 operates, the AND circuit 102 outputs. Then, the flip-flop circuit 106 outputs the new paper R ₁ by the motor 89 (FIG. 5 (c)).

Then by the rotation of the new paper roll R _1, when detecting the mark M phototube 33 is provided on the new paper roll R ₁ side, a rotary encoder 201 attached to the rotation shaft of the motor 89 enters the signal to the flip-flop circuit 107 is a pulse Outgoing,
The number of pulses is counted by the preset counter 203. Next, as shown in FIG. 5 (d), when the new paper roll R ₁ is rotated by a predetermined angle (θ), a signal is input from the preset counter 203 to the reset input terminal of the flip-flop circuit 106 (at this time, the AND circuit 102 is operated by the time relay 110).
Is out of signal. ) The motor 89 rotating the new paper roll R ₁ stops. The preset counter 203
Is set so that, at this stop position, the front end of the web of the new paper roll R ₁ is directly below the automatic gluing device 36.
Further, when the motor 89 is stopped, the automatic gluing device 36 starts the gluing operation.

In the above, the case where the new paper roll is attached to one end of the supply arms 14 and 15 has been described, but when the new paper roll is attached to the other end of the supply arms 14 and 15 to replace the old paper roll, the limit switch 13, the inverter 104, The same operation is performed by the AND circuit 103, the flip-flop circuit 108, the time relay 111, and the like.

Next, the positioning operation of the glued portion will be described with reference to FIGS. 6 and 7.

When the old paper roll R ₂ is further consumed from the state shown in FIG. 5 (d) and its diameter becomes smaller as shown in FIG. 7 (a), the rotation support plate 37 is lowered by the operation of the air cylinder 38, and the motor 8 As a result, the paper feed arms 14 and 15 are rotated and the state shown in FIG. When this state is reached, the paste ready signal 210
Is emitted. In this state, the photocell 112 does not operate, and therefore the AND circuits 114 and 115 output the signal, and the motor 89
As a result, the new paper roll R ₁ rotates. When the phototube 112 detects the mark M as shown in FIG. 7 (c), the motor 89 stops. Therefore, the tip end of the web of the new web R ₁ is pressed against the web W of the old web R ₂ by the crimping brush 39 to bond the web W, and at the same time, the knife 40 cuts the old web W on the downstream side of the bonded part. Incidentally, which of the two motors 89 for rotating the new paper rolls R ₁ and R _{2 is} to be rotated is determined by whether or not the paper rolls R ₁ and R ₂ are rotated.

Although the splicing is completed by the above, the rotation of the old web R ₂ is stopped at the splicing, so the dancer roller 44 in the web storage unit 2 moves toward the roller 43,
The stored amount is sent to the web processing and consumption device. After the paper splicing is completed, the web W is sandwiched between the nip roller 47 and the acceleration roller 48 to accelerate the web W, and the original state is restored. When this is completed, the nip roller 47 is released and the sheet is fed normally.

It should be noted that the above-described illustrated example is merely one example, and the present invention is not limited to this. For example, the mark M does not necessarily have to be provided on the side surface of the paper roll and may be provided on the periphery, and the detection device is not limited to the photoelectric tube and may be magnetically detected. Further, in the present embodiment, an example in which the present invention is applied to the zero speed method is described, but a speed matching method, that is, an accelerating roller is provided instead of having the storage unit 2, and a new web is wound by this accelerating roller. It can also be applied to a method of attaching to old paper while rotating.

Since the present invention is configured as described above, it is not necessary to manually paste the web front end portion of the new web into each paper splicing operation, and the web front end portion is automatically aligned and glued to the paste device. As a result, it is possible to achieve full automation of sheet feeding and significantly improve sheet feeding efficiency.

[Brief description of drawings]

FIG. 1 is an overall side view of an automatic paper splicing and feeding apparatus to which a paper winding position adjusting device according to the present invention is applied, FIG. 2 is a front view of the automatic paper splicing and feeding apparatus, and FIG. 3 is both ends of a paper feeding arm. Fig. 4 is a broken view of the part, Fig. 4 is an electric circuit diagram for explaining the positioning operation of the paper roll, Figs. 5 (a) to (d) are schematic diagrams showing the positioning operation of the paper roll, and Fig. 6 is the same. FIG. 7 is an electric circuit diagram for explaining the gluing position aligning operation, FIG. 7 is a schematic diagram showing the gluing position aligning operation, and FIG. 8 is a perspective view of the paper roll showing the gluing state. 1 ... Paper feeding unit, 2 ... Web storage unit, 4 ... Axis, 14, 15
...... Paper feed arm, 19, 28 …… Chucking cone, 33,3
4, 112 ...... Phototube, 36 ...... Automatic gluing device, 37 ...... Rotating support plate, 39 ...... Brush, 40 ...... Knife, 300 ...... Sticking device, R ₁ , R ₂ ...... Roll paper, M …… Mark, W…
…web.

Claims (3)

[Claims] 1. A pair of paper feed arms are attached to rotary shafts, and rolls are rotatably held at both ends of the paper feed arms, and the rotary shafts are rotated when the old rolls being consumed are running low. By reversing the paper feed arm, the new paper roll is positioned above and the old paper roll is positioned below.Then, the web front end is glued while detecting the web front end display mark that indicates the web front end of the new web. The new paper roll is rotated so as to move to the position just below the paper roll, and then a sticking device for sticking the web of the old paper roll and the end of the web on which the new paper roll is pasted is brought close to the new paper roll, and the new paper roll is placed. The method of gluing and splicing a roll of paper, characterized in that the new roll of paper is stopped in rotation at the position of sticking by the sticking device while detecting the display mark on the cover. 2. A pair of opposed paper feed arms attached to a rotary shaft rotated by a drive device, and driving and stopping chucking cones provided in pairs at both ends of the arms. By inserting and attaching the chucking cones for driving and stopping, a pair of old and new paper rolls supported between both ends of the opposing arms, and a paste for pasting the web front end of the new paper roll among these paper rolls A device, a sticking device that is rotatably provided between a standby position and an operating position, and a sticking device for sticking the glued portion of the new paper roll to the old paper roll, and the arm when the diameter of the old paper roll becomes small. Rotate it by a predetermined angle,
Detect the leading edge display mark on the new web to display the front edge of the web and rotate the web front of the new web to the gluing device of the gluing device and attach the rolled web to the gluing device. A roll paper gluing and splicing position aligning device, which comprises a control device for rotating the sizing device to a mounting position. 3. The control device includes a limit switch that is operated by rotation of a shaft of a paper feed arm, a drive motor for rotating the chucking cone that is driven by the limit switch, and is attached to the paper feed arm. A photoelectric tube for controlling the drive motor so as to move the web front end portion of the paper roll to the glue position of the glue device and stop it by detecting the display mark, and attached to the automatic pasting device, 3. The paper roll according to claim 2, further comprising a photoelectric tube for detecting the display mark and stopping the drive motor of the chucking cone to stop the new paper roll at the attachment position. Gluing and paper splicing alignment device.