JPH037581B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an underlay feeding device that supplies underlay paper between a newspaper bundle and a conveyor section during shipping sorting work of newspaper bundles, etc. This invention relates to a mechanism for feeding a web to a cutting section for cutting the underlying paper.

Prior Art As shown in Japanese Utility Model Publication No. 51-4728, a roll of paper is sent out one after another toward a cutting section, the cutting section cuts it into underlay paper of a predetermined length, and this underlay paper is inserted between a conveyor section and a bundle of newspapers. An underlay supply device is known that feeds and lays underlay.

In such an underlay supply device, when the paper roll runs out, it is necessary to replace it with a new paper roll, so in Japanese Utility Model Publication No. 51-4728, a pair of paper rolls a and a' are arranged side by side as shown in Figure 6. The roll paper a is supplied sequentially from one roll a, and the other roll paper a' is kept on standby.The detectors b and b' detect that the roll diameter of the roll paper a has become thinner, and a signal is sent when the roll diameter of the roll paper a becomes thinner. At this point, the worker applies double-sided adhesive tape c to the tip of the other paper roll a', which was waiting, and presses guide roller e against roller f using lever d. The other paper roll with double-sided adhesive tape c
By stacking the tip of paper a' on the end of one paper roll a and inserting it between the rollers, the tip of the other paper roll a' that was waiting at that end is glued, and from then on, the other paper paper a' is fed from the other paper roll a'. At the same time, a new paper roll is attached to the position of one paper roll a during this time.

In FIG. 6, g is a drag roll and h is a cutting section, which is composed of a receiving blade i and a cutting blade j.

Problems to be Solved by the Invention If the method described above is used, it is possible to alternately feed the paper from a pair of webs, so the underlay paper can be sent out and laid down without stopping, but the paper is spliced manually by an operator. Therefore, the work is troublesome, and if the operator makes a mistake or forgets to perform an operation, the paper may not be spliced and the underlay paper cannot be fed, resulting in poor reliability.

Means and action for solving the problem A pair of paper rolls are passed through a conveying path to the upper and lower surfaces of the plate, and a cylinder and a backing plate are arranged facing each other on the outlet side of the plate, and magnets are installed on the upper and lower surfaces of the plate. A cutting mechanism is installed in the middle of each conveyance path to move the cutter using a motor, and double-sided tape is attached to the tip of the waiting paper roll so that it is positioned between the cylinder and the backing plate. A limit switch is attached to the plate by magnets, and a limit switch is provided adjacent to the pair of roll papers to detect when the roll paper runs out and drive the motor and cylinder. The tip of the paper roll being fed is automatically adhered to the paper roll being fed, and the paper is cut in the middle of the conveyance path so that the paper can be spliced automatically.

Embodiment Figure 2 is an overall schematic diagram of the underlay feeding device, and shows a conveyor installed between a counter stacker (not shown) that creates newspaper bundles and a shipping device (not shown) that conveys the newspaper bundles. Section A has a structure in which a waiting conveyor section A' and a constantly driving conveyor section B are provided, between which the underlay paper 63 is placed on a paper guide 61.
and a feed roller 51.

Reference numeral F denotes a web supply mechanism, on the supply side of which a pair of drag rolls 52 and a cutting section 53 are sequentially arranged, and the cutting section 53 is made up of a pair of cutters 54, 54.

FIG. 1 is a detailed explanation of the web supply mechanism F,
The structure and operation will be explained below.

In Fig. 1, 1 is a roll of paper for the old underlay paper in use, including a guide roll 15 and a floating roll 1.
3. The underlay paper is supplied to the paper guide 61 via the guide roll 16, guide roll 34, and guide roll 43. A third phototube 32 is provided on the exit side of the guide roll 16, and a fourth phototube 42 is provided on the entrance side of the guide roll 43, respectively.

Reference numeral 2 denotes a winding paper for a spare new underlay paper, which includes a guide roll 17, a floating roll 14, a guide roll 27, a guide roll 28, and a guide roll 35.
The tip end is waiting at a position on the entrance side of the fourth phototube 42. A double-sided tape 41 is attached to the tip, and it is firmly held between a plate 63 and a magnet 38 so as not to move during standby, and a cylinder 39 is disposed opposite the tip. . 33 is a fifth phototube provided on the exit side of the floating roll 14.

Brakes 3 and 4 are pressed against the outer periphery of each paper roll 1 and 2 by levers 9 and 10 and springs 11 and 12, respectively.

As the roll paper 1 for the old underlay paper is used, its diameter gradually becomes smaller, and accordingly the brake 3 moves in an arc, but since the roll diameter detection bar 5 is provided coaxially with the brake 3, the roll diameter detection bar 5 is provided coaxially with the brake 3. The diameter detection bar 5 similarly performs an arcuate movement. and the stroke end (that is, the old underlay paper web 1
When the paper reaches a state in which the paper has run out, the limit switch 7 is activated to issue a paper splicing signal.

C is a cutting mechanism for the old underlay paper 1' provided between the guide roll 16 and the guide roll 34 in the conveyance path of the old underlay paper web 1, and the sprocket 20 provided on the output shaft 18a of the motor 18 is connected to the chain 67. A sprocket 22 is connected to the sprocket 21 through a sprocket 21, and a sprocket 22 is provided coaxially with the sprocket 21, and as shown in FIG. A cutter 29 is provided on the chain 66 to cut the old underlay paper 1' while the chain 66 makes one revolution, and when the limit switch 30 is operated, the motor 18 stops and the cutter 29 also stops. There is.

The cutter 29 is a commercially available disposable and inexpensive one, and as shown in FIGS. 4 and 5, a special unit chain 66' is provided at one location of the chain 66, and a block 68 is provided in this special unit chain 66'. A cutter 29 is fastened to this block 68 with a holding plate 69 and bolts 70.

D is a cutting mechanism for the new underlay paper 2' provided between the floating roll 14 and the guide roll 28 in the conveyance path of the new underlay paper roll 2, and is the same as the cutting mechanism C for the old underlay paper 1'. Since these two components have the same structure, the reference numerals are the same and the explanation will be omitted.

As such, the old underlay paper 1' is sent out one by one, cut into a predetermined length by the cutting section 53 (see FIG. 2), and then sent to the paper guide 61 where it is forcibly fed out as the underlay paper 63.

When the old underlay paper roll 1 runs out, the limit switch 7 operates to issue a paper splicing signal. This signal causes the paper feeding to stop, and the cylinder (that is, the air cylinder for paper splicing) 39 moves up to the abutment plate 40 and adheres the old underlay paper 1' and the new underlay paper 2' via the double-sided tape 41, and then Cylinder 39 descends.

When the paper splicing is completed, the motor 18 is driven and the cutter 29 cuts the old underlay paper 1' as described above.

This completes the automatic paper splicing, and from this point on, new underlay paper 2' is sequentially supplied from the roll paper 2 for new underlay paper. Then, the magnet 38 is separated from the plate 36 due to the tension when being supplied, so that it does not interfere with the supply of the new underlay paper 2'.

Then, the old underlay paper roll 1, which ran out while being supplied sequentially from the new underlay paper roll 2, is replaced with a new one, and its tip is inserted into the fourth photoconductor 4.
The paper is passed through to the entrance side position of 2 and double-sided tape is attached to it, and the paper is kept waiting until the next paper splicing.However, in order to prevent the tip of the replaced new roll paper from moving during the waiting period, the magnet 37 is attracted to the plate 36 and the above-mentioned Hold the tip slightly upstream of the area where the double-sided tape is attached.

Then, when the paper roll 2 for new underlay paper runs out, the limit switch 8 is activated to output a paper splicing signal, and based on that signal, paper splicing is performed in the same manner as described above.

As mentioned above, continuous continuous operation is possible because paper can be spliced automatically.

Note that if the old underlay paper 1', 2' is not completely cut during automatic paper splicing, the third phototube 32
(fifth phototube 33), and paper splicing defects are detected by fourth phototube 42.

Effects of the Invention When the paper being fed runs out, one of the limit switches 7 and 8 is turned on, driving the cylinder 39 and motor 18, and feeding the double-sided tape 41 attached to the tip of the waiting paper roll. By cutting the paper roll that is glued to the paper roll and being fed in the middle of the conveyance path, the paper roll that is waiting is then fed and the paper can be spliced automatically.

Therefore, the paper splicing work is simplified because the worker does not have to manually splice the paper, and the reliability is improved because the paper splicing will not be impossible due to operational errors or omissions.

Further, since the leading end of the paper roll that is on standby is held by the magnets 37 and 38 by adsorption to the upper or lower surface of the plate 36, when the paper roll is placed on standby, the leading end of the paper roll is held between the plate 36 and one of the magnets 37, 38. 8 to the splicing position, and the magnets 37, 38 are attracted to the plate 36. Moreover, when the web starts running after splicing, the magnets 37, 38 are separated from the plate 36 by the tension acting on the web. Since the paper roll is released from holding the web, there is no need for special driving means or control means for holding the paper web on the plate 36 or releasing the holding of the paper web, and the structure is extremely simple and highly reliable. Furthermore, the manufacturing cost is reduced. can be lowered.

In addition, by adhering the double-sided tape 41 attached to the tip of the waiting paper roll to the paper feed being fed by the thrust of the cylinder 39, the tip of the waiting paper roll can be attached to the paper feed being fed. Can be glued,
The double-sided adhesive portion of the double-sided tape 41 adheres to both rolls of paper and is not exposed to the outside, and the double-sided tape does not peel off from one of the rolls and tear the paper, and the double-sided adhesive portion of the double-sided tape 41 adheres to both rolls of paper while the roll is running. There is no possibility of problems such as the tape adhering to other parts or the smooth running being hindered by the torn parts.

[Brief explanation of the drawing]

1 to 5 show embodiments of the present invention.
The figure is a front view of the paper roll supply mechanism, Figure 2 is an overall schematic diagram, Figure 3 is a front view of the cutting mechanism, Figures 4 and 5 are a plan view and side view of the cutter attachment section, and Figure 6 is a conventional It is an explanatory diagram of an example. 1 and 2 are roll paper, 7 and 8 are limit switches,
18 is a motor, 29 is a cutter, 36 is a plate,
37, 38 are magnets, 39 is a cylinder, 40
is a backing plate, and 53 is a cutting part.

Claims (1)

[Claims] 1. A pair of paper rolls 1 and 2 are threaded through the conveyance path to the upper and lower surfaces of the plate 36, respectively, and a cutting section 53 is provided after the plate 36, and one paper roll is sent to the cutting section and cut into a predetermined length. In this underlay feeding device, magnets 37 and 38 are arranged to face the upper and lower surfaces of the plate 36, and a cylinder 39 and a backing plate 40 are arranged on the outlet side of the plate 36 in the vertical direction. A double-sided tape 41 is attached to the leading end of the paper roll that is placed facing each other and waiting, and a magnet 37 is placed at a position facing between the cylinder 39 and the backing plate 40.
38 to the plate 36, and each of the conveyance paths is provided with a cutting mechanism configured to move the cutter 29 by the motor 18, and detects when the paper roll runs out adjacent to the pair of paper rolls 1 and 2. An underlay supply device characterized in that limit switches 7 and 8 are provided for outputting drive signals to the cylinder 39 and the motor 18, respectively.