JPH0240570B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is used in a paper feed section of a rotary press, and relates to a pretreatment device for automatic paper splicing of newspaper rolls.

(Prior Art) Generally, in a rotary press, as shown in FIG. 12, by gluing and splicing the terminal end of a web Pa that is fed out at a constant speed to the starting end of a web Pb that rotates at a constant circumferential speed, Paper is being fed continuously. In FIG. 12, A is a rotary press, B is an adhesive pressing device, C is a trident for supporting the web, and D is a rotating drive device for the web.

Therefore, in order to perform automatic paper splicing as described above, the starting end of the web Pb needs to be pretreated for adhesion.
The pretreatment for adhesion is usually performed manually. That is, the web Pb attached to the supporting trident C
After peeling off the outer surface (4 to 5 sheets) with a bamboo spatula or the like, cut the starting end of the web into a roughly V shape as shown in Figure 13, and attach the tip to the web using tab E. , a plurality of double-sided adhesive tapes F are attached to the outer surface of the starting end of the V-shaped paper roll.

However, the above-mentioned manual pre-processing for paper splicing has problems in that it is inefficient and increases labor costs, and the inner paper is likely to be damaged when the outer surface layer of the web is peeled off.

Therefore, in order to solve the above-mentioned problems in the conventional paper splicing pretreatment, the applicant of this patent developed an automatic paper splicing pretreatment device, This is published as No. 132651. However, the automatic paper splicing pre-processing device is configured to be mechanically independent of the paper feed section of the rotary press, and is configured to be installed at an appropriate location between the newspaper roll storage and the paper feed section of the rotary press. Therefore, a separate rotation support mechanism and rotation drive mechanism for the roll paper are required.
There is a problem in that the manufacturing cost increases as the device becomes larger.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned problems in the conventional pretreatment of newspaper rolls for paper splicing, namely, in the case of manual work, the work efficiency is low, and when the outer surface layer of the roll paper is peeled off. The aim is to solve the problems of the internal paper being easily damaged, the automatic paper splicing pre-processing device related to the previous application being large and expensive to manufacture, and the processing cost soaring. The present invention provides a paper splicing preprocessing device and a preprocessing method that can preprocess newspaper rolls for paper splicing.

The present invention has a base end fixed at an upper position on the side of a web 4 which is rotatably supported by a support member 5 of a paper feed section of a rotary press, and whose lower end is extendable and movable upward and downward. a mechanism 8; an arm 9 whose base end is movable and rotatably supported in the front-rear direction when viewed from the front at the lower part of the telescoping mechanism 8; and whose distal end is movable in the horizontal direction; The case body 10a is supported at the tip of the arm 9, and the case body 1
A main processing device 10 equipped with a cutter 20 for forming a cut at the starting end of the web and an adhesive layer forming device 22 for forming a paper splicing adhesive layer on the upper surface of the starting end; located below the main processing device 10; a table support board 12 supported by the telescopic mechanism 8; a table 11 disposed above the table support board 12 so as to be movable in the left-right direction and formed with at least one tab insertion hole; A tab pasting device 13 is disposed below the board 12, and sticks the tab 24 to the back surface of the starting end of the web from below by passing through the tab insertion hole.
The basic structure of the invention is a foldable waste paper recovery hopper 14 located below the tab pasting device 13 and supported by the telescoping mechanism 8.

(Function) The automatic paper splicing processing device 1 is normally stored in a suspended position above the side of the web 4 by shortening the telescoping mechanism 8, and when in use, the telescoping mechanism 8 is extended and the table 11 is moved over the web 4. It is lowered to a position approximately parallel to the top.

Thereafter, the outer surface layer of the web 4 is cut and removed by the cooperation of the main processor 10, the table 11, etc., and the starting end of the web fed onto the table 11 is cut in a predetermined shape. A paper splicing adhesive layer is formed by operating the main processor 10.

Thereafter, tension is applied to the starting end of the web, and the starting end is separated along the cut 25, and the base end of the tab 24 is stuck to the back side of the tip of the cut of the web by the tab paster 13. .

Finally, the web 4 is rewound, and the tail portion of the tab 24 is attached to the outer surface of the web 4 using an adhesive layer previously provided on the back surface of the tab 24, thereby automatically feeding the paper into the rotary press. The pretreatment for paper splicing is completed.

Note that the surface layer of the removed web 4 is the hopper 1.
4 and onto a web transport vehicle waiting below. Further, when the pretreatment of the paper rolls on both the left and right support members 5 is completed, the telescoping mechanism 8 is shortened and the device 1 is folded and stored above the paper feed chamber.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 11.

FIG. 1 shows an automatic paper splicing pretreatment device 1 according to the present invention.
In the figure, 2 is the rotary press, 3 is the floor of the rotary press installation room, 4 is the roll paper, and 5 is the rotary press.
Reference numeral denotes a support member for the web, that is, a three-pronged supporting member; 6, the ceiling of the paper feed chamber; and 7, a trolley for transporting the web.
Although a three-pronged support member is used in this embodiment, the shape of the support member is not limited to three-pronged.

The automatic paper splicing pre-processing device 1 is disposed in a vertically movable manner on the ceiling 6 of the paper feed chamber in the center of the supporting three prongs 5, 5 for supporting adjacent paper webs, and includes a telescoping mechanism 8, an arm 9, and a main processor. 10, a table 11, a table support board 12, a T-tab paster 13, a hopper 14, and the like.

The expansion/contraction mechanism 8 is constituted by a so-called pandagraph mechanism, and is expanded/contracted by fluid pressure, an electric motor, etc., and raises/lowers each constituent member attached to it, such as an arm 9, a main processor 10, a table 11, a hopper 14, and the like. In this embodiment, the telescoping mechanism 8 has a pandagraph structure, but it is of course possible to use a telescoping mechanism such as a hydraulic cylinder.

FIG. 2 is a perspective view showing the outline of the arm 9, which includes a cart 9a disposed movably in the left-right direction on a support rail 8a fixed to the telescoping mechanism 8, and a pandagraph-type arm that is extendable in the left-right direction. The base end of the arm body 9b is connected to the support shaft 9d via the groove 9c of the trolley 9a.
It is pivotally supported so that it can move freely in the front and rear directions and can rotate freely. Incidentally, a main processor 10, which will be described later, is attached to the tip of the arm body 9b via an attachment guide rail 9e. Further, in this embodiment, the arm body 9b has a pandagraph structure, but the body 9b may be formed of a rail-like member, and the main processor 10 attached to this may be moved left and right along the body 9b. Good too.

FIG. 3 is a perspective view showing the outline of the table 11 and the table support plate 12. The table 11 is formed by combining two table plates 11a and 11a, and is 20 to 40 mm in the direction of arrow A. and are arranged so as to be slidable a certain distance in the directions of the arrows. Moreover, both the table plates 11a, 11
A is provided with a round belt 11b for paper feeding, and furthermore, in the center of both table plates 11a, 11a are insertion holes 11c, 11d for T-tabs, which will be described later, and a paper feeding roller provided on the back side of the table 11. A notch is provided in each case to form a roll hole 11e through which the roll can be seen toward the surface side. Note that in this embodiment, table 11
consists of two table plates, and as described later, after pasting the T-tab, both table plates 11a, 11a are slid in the direction of arrow A to prevent the adhesive surface on the lower surface of the tip of the T-tab from adhering to the table side. However, if a separate adhesion prevention device such as lifting the tip of the T-tab upwards is provided, the table 11 can be configured with a single table board.

On the other hand, the table support plate 12 is
Nipping roller 1 consisting of two rollers is installed at both ends of the nipping roller 1.
2a and 12b are provided so as to be freely inverted. That is, when the upper table 11 moves to the right, the roller 12b is pressed by the table 11 and becomes a horizontal position, and the roller 12a is released from the pressure of the table 11 and becomes a vertical position, and the roller 12a is moved to the vertical position by the table 11.
Clip the paper that is running above to the left. Further, a mounting hole 12c for inserting a T-tab pasting device 13 is formed in the table support board 12, and the T-tab pasting device 13, which will be described later, is inserted here.

FIG. 4 is a perspective view showing the outline of the hopper 14, which includes two bottom plates 14b and 14c rotatably supported on both sides of the hopper frame 14a, and the bottom plate 14.
It is composed of an air cylinder (not shown) that opens and closes b and 14c. Note that both bottom plates of the hopper 14 overlap substantially horizontally when the telescopic mechanism 8 is shortened, and are held in this state.

FIG. 5 shows the main processor 10 at the tip of the arm 9.
FIG. 6 is an internal configuration diagram of the main processor 10. With reference to FIG. 5, main processor 1
The case body 10a of No. 0 is pivotally supported by a mounting shaft 10c on a mounting guide rail 9e at the tip of the arm body 9b via a support member 10b so as to be swingable in the direction of the arrow E-L. That is, by adjusting the excitation current of the solenoid 15 attached to the front end surface of the case 10a, the front end of the case 10a swings a certain distance in the directions of arrows A and B. In this embodiment, the case body 10a is fixed to the mounting guide rail 9e at the tip of the arm body 9b, and the case body 10a is fixed to the mounting guide rail 9e at the tip of the arm body 9b.
The arm body 9b has a non-extensible structure and is provided with a guide rail, and the case body 10a is moved horizontally in the left and right direction along the guide rail. It's okay.

Further, in this embodiment, the tip of the case body 10 is configured to be swung in the vertical direction by the solenoid 15, but the case body 10a is fixed to the tip of the arm body 9b in a horizontal position, and the tip of the arm body 9b is tilted up and down. It is also possible to have a configuration in which the

As shown in FIG. 6, inside the case body 10a,
Satsuka 16 and solenoid 1 for activating Satsuka
7, a horizontal cutter 18 and a solenoid for operating the cutter 19, a round cutter 20 and a solenoid for operating the cutter 21, an adhesive layer forming device 22, an adhesive tape supply device 23, etc. are housed.

The suction cup 16 is for suctioning and lifting up three to four sheets of the surface layer of the web 4, as will be described later, and has two to three vacuum suction cups 1 at the tip.
6a are arranged in the front-rear direction and are connected to a vacuum pump (not shown) via a hose (not shown). The suction wheel 16 is an operating solenoid 1.
7, the vertical position is set, and after the tip of the case body 10a is swung downward, the solenoid 17 is actuated to press the suction cup 16a against the outer surface of the web 4. Incidentally, in this embodiment, the soccer car 16 is housed inside the case body 10a, but
It may be taken out of the case body 10a as a separate body. Further, after swinging the tip of the case body 10a downward, the suction cup 16a is further moved by the solenoid 17.
The suction cup 16 is directly pressed by the downward swinging of the case body 10a.
It is also possible to press a into contact with the outer surface of the web and omit the solenoid 17. Furthermore, although a vacuum suction cup 16a is used in this embodiment, the paper roll 4
Of course, any structure may be used as long as it can be effectively lifted up on the surface layer.

The horizontal blade cutter 18 cuts the surface layer of the web 4 lifted up by the sucker 16, has a blade width approximately equal to the width of the web 4, and is lowered by a solenoid 19. Incidentally, in this embodiment, the soccer car 16 is used as the case body 10a.
Since the cutter 18 is cut by lowering the cutter 18 to cut the outer surface of the web which is lifted up by the suction cup 16a, a cutter 18 with a blade width that is approximately equal to the width of the web 4 is required. If it is separate from the case body 10a, the case body 1
By moving 0a in the front and back direction, suction cup 1
It becomes possible to cut the web held floating at 0a, and the blade width of the cutter 18 can be reduced.

As will be described later, the round cutter 20 is used to cut the starting end of the paper roll 4 cut by the cutter 18 into a V-shape, and is lowered by the operation of the solenoid 21 and comes into contact with the paper surface, thereby cutting the case body. 1
By moving 0a in a V-shape, a V-shaped cut is formed at the starting end of the web. In this embodiment, the horizontal cutter 18 and the round cutter 20 are
However, by making the blade of the round cutter 20 rotatable, the horizontal cutter 18 can be omitted if the cutter 16 is made separate from the case body 10a. .

The adhesive layer forming device 22 includes a take-up reel 22b for a double-sided adhesive tape 22a which is rotatably held, a guide roller 22c, a V-grooved roller 22d, a tape cutter 22e, a rotary support needle 22f, a presser free roller 22g, and a needle remover. Protective paper scraper 22
h, a stepping motor 22i for rotating the support needle, and the like. The support needle 22f is stuck into the adhesive tape 22a fed out from the reel 22b via the guide roller 22c by the grooved roller 22d, and the top surface of the paper is held by the support needle 22f. The paper is pulled out and pressed onto the paper surface by the free roller 22g. On the other hand, the support needle 22f is pulled off from the tape by the scraper 22h, rotates in the direction of the arrow, and continues to pierce the tape 22a, and in this state, the cutter 22e is activated to cut the tape 22a. Also, in the scraper 22h, the support needle 2
At the same time as the tape 2f is removed, the protective paper on the upper surface of the tape 22a is peeled off.

The operation of applying the double-sided adhesive tape 22a as described above is carried out continuously while moving the case body 10a in an arbitrary direction along the paper surface, and the desired adhesive layer is placed at a predetermined position at the starting end of the web 4. part is formed. Although double-sided adhesive tape is used in this embodiment, it is also possible to form an adhesive layer by applying an adhesive or the like.

The adhesive tape holding section 23 includes a turret shaft 23a which is rotatably supported at every 180 degrees, and a reel mounting body 2 which is symmetrically supported by the turret shaft 23a.
3b and guide roller 22c, V-grooved roller 22
A spare reel 22b' is wound with a spare double-sided adhesive tape, and its starting end is temporarily fixed to the lower end of the grooved roller 22e. When the double-sided adhesive tape 22a of the reel 22b in use becomes empty, the turret shaft 23a is rotated 180 degrees by manual or automatic operation, and the positions of the spare reel 22b' and the reel 22b are exchanged.

7a to 7f and a' to c' are explanatory diagrams of the configuration of the T-tab applicator 13 disposed below the table 11 and the table support plate 12, and FIG.
FIG. The T-tab applicator 13 includes a T-tab mounting table 13a that can be moved up and down, a tail protection paper peeler 13b that can be moved left and right, a vacuum suction type T-tab holder 13c that can be expanded and contracted, rotated, elevated and refracted, and protection for both wings. It is composed of a paper peeler 13d, a protective paper peeling tester 13e, and the like. On the T-tab mounting table 13a, as shown in FIG. 8, there is a T-tub with protective paper-coated adhesive tapes 24a, 24a attached to the lower surfaces of both wings of the T-tab, and a protective paper-coated adhesive tape 24b attached to the upper surface of the tail. A plurality of tabs 24 are stacked and stored, and are successively pushed upward one by one (FIGS. 7a, a').

When the uppermost T-tab 24 is pushed up to a predetermined position, the tail protective paper peeler 13b equipped with a peeling roller driven to rotate at a low speed is lowered, and the pressure and rotation of the roller removes the tail double-sided adhesive tape 24b. The top protective paper is peeled off (Fig. 7b, b'). When the protective paper of the tail adhesive tape 24b is peeled off, the vacuum suction cup of the T-tab holder 13c holds the T-tab by suction. The protective paper of the double-sided adhesive tape 24a is forcibly peeled off by the pressure and rotation of the roller (FIG. 7c, c').

The T-tab from which the protective paper of the adhesive tape on the tail and both wings has been peeled off is inspected by a photoelectric protective paper peeling tester 13e.
The peeling condition of each protective paper is inspected while passing through (FIG. 7d).

After passing through the inspection device 13e, the T-tab retainer 13
The vacuum suction cup c is rotated 180 degrees so that the adhesive surfaces of both wings of the T-tab are located upward, and the adhesive surface of the tail of the T-tab is located downward (Fig. 7e).

When the vacuum suction cup of the T-tab retainer 13c is rotated by 180 degrees, the operating cylinder of the vacuum suction cup is rotated by 90 degrees to take a vertical position, and the neck of the suction cup is bent by 90 degrees, causing the T-tab 24 to rotate. It is held horizontally (7th
Figure f). Thereafter, the suction cup is pushed upward by the extension of the piston, and as shown in FIG.
The T-tab is inserted through the T-tab insertion hole 11c formed in the T-tab insertion hole 11c, and in cooperation with the presser roller 22g, it is pasted to the back of the tip of the V-shaped starting end of the web with the tail protruding to the left. Ru.

In addition, in this embodiment, each protective paper peeling tester 13e
Although a reflected light detection type is used, it is also possible to detect light shielding due to a protective paper that peels off and falls. Although each of the protective paper peelers 13b and 13d is of a roller type, it goes without saying that they may be of a scraper type or the like. Further, although the T-tab suction device 13c is of a piston-cylinder type equipped with a vacuum suction cup, it may be of a type using a clamping claw or the like. Furthermore, T tab 2
The shape of 4 is not limited to the T-shape, but may be a rod-shape or any other shape.

Next, the automatic paper splicing pretreatment method according to the present invention will be explained.

First, when processing the web 4 that is rotatably supported by the supporting trident 5 as shown in FIG. Slide it to the right and bring its tip close to the outer surface of the paper roll 4. At the same time, the hopper 14 is opened and a trolley for operating the web is positioned below it, and the arm 9 is further extended to set the main processor 10 at a predetermined position.

Next, as shown in FIG. 9, the sucker 16 is activated to suck the outer surface layers (3 to 5) of the web 4 upward by the vacuum suction cup 16a. Note that the outer surface layer of the web 4 is generally loosened during transportation, and is lifted 2 to 3 mm upward by suction by a suction cup. ) or the like to squeeze the outer surface layer of the web 4 in the tightening direction, the lifting amount due to the suction can be further increased.

When suction by the sucker 16 is completed, the solenoid 15 is activated to swing the tip of the main processor 10 downward, and the horizontal cutter 18 is pushed downward to cut the outer surface layer of the web in the width direction. . The three-pronged rotational drive device and table 11
In cooperation with the upper round belt 11b, the turned paper (the surface layer of the web) is transferred to the left along the table, fed into the hopper 14 by the nipping roller 12a at the left end of the table support plate 12, and discharged onto the trolley. do. Further, following the transfer of the turned paper, the starting end of the web is transferred to the left along the table 11 by the cooperation of the rotational drive device on the three-pronged side and the table round belt 11b, and the starting end of the rolled paper is transferred to the left side along the table 11. The transport of the web is stopped when it is nipped by the nipping roll 12a at the end of the support plate.

When the nipping of the starting end of the web is completed, the main processing unit 10 is operated and the adhesive tape applicator 22 is activated to apply double-sided adhesive for paper splicing to a predetermined position on the upper surface of the starting end of the web, as shown in FIG. tape 22a
At the same time, the round cutter 20 is operated to form a substantially V-shaped cut 25. Note that it is preferable that the cut 25 is not a complete cut across the entire width of the paper, but rather leaves a small connecting portion at both ends.
Further, in this embodiment, after the double-sided adhesive tape 22a is pasted, the cuts 25 are formed, and then the double-sided adhesive tape 22a is pasted.
Although the cut 2a is attached, the cut 25 may be formed first. Furthermore, the shape of the cut 25 is not limited to the V-shape, but may be any other shape.

On the other hand, during the process of cutting and removing the surface layer of the web, the process of forming a V-shaped cut at the beginning of the web, and the process of adhering the double-sided adhesive tape 22a for paper splicing, the T-tab applicator 13 below the table 11 performs the following steps: As mentioned above, T
The protective paper on the tail and both wings of the tab 24 is peeled off,
The T-tab 24 is prepared for attachment in a horizontal state with the adhesive layers of the adhesive tapes on both wings facing upward (FIG. 7f).

As shown in FIG. 10, when the adhesion of the adhesive tape 22a and the formation of the cut 25 are completed, the rotation drive device on the three-pronged side rewinds the web slightly and rotates the nipping roller 12a, thereby making the V-shaped cut 25. Separate the paper along the

When the separation of the paper is completed, the top surface of the tip of the V-shaped cut on the web is pressed by the pressing roller 2 of the main processor 10.
2g, push up the T-tab holder 13c of the T-tab sticking device, and stick the adhesive layers of both T-tab wings to the back side of the V-shaped end through the T-tab insertion hole 11c of the table 11. Then, as shown in FIG. 11, the tail portion of the T-tab 24 is made to protrude outward.

After pasting the T-tabs 24, both table boards 11
a slightly in the width direction to prevent the adhesive layer on the lower surface of the T-tab tail from adhering to the table surface, and at the same time, the roll paper is rewound by the rotational drive device on the three-pronged side to remove the adhesive layer on the lower surface of the T-tab tail. By adhering the layer to the outer surface of the web, the structure shown in Fig. 13 (conventional example)
Process the paper edge of the web into a shape like this. In addition, when pasting the T-tab tail to the web side by unwinding the web, it is desirable to apply pressure while squeezing the V-shaped starting end using a roller or the like.

By the above-described operation, an automatic paper splicing pre-processing section is formed, which has an adhesive layer for paper splicing on the upper surface of the V-shaped starting end, and has the V-shaped tip fixed to the web side with a T tab, By pressing the end of the currently used web onto the splicing pretreatment section of the new web with synchronized speed, both sheets are adhesively connected, and the adhesive on the T-tab tail is peeled off, resulting in a continuous process. It is supplied to a rotary press.

(Effects of the Invention) As described above, the present invention can automatically perform all the pre-treatments for paper splicing at the starting end of the web, which greatly improves work efficiency. There will be no damage at all.

In addition, in the present invention, the automatic paper splicing pre-processing device is installed on the ceiling of the rotary press paper feed chamber and is lowered when required to operate, so the space required for installation is minimized, and the roll paper There is no need for a separate support device or roll rotation drive device.
Moreover, by sliding the table in the left-right direction, it is possible to process a roll of paper supported by two three-pronged units with one processing device, and it is possible to significantly reduce equipment costs.

Furthermore, since the preparation for adhesion of the T-tab is carried out in parallel with the formation of the V-shaped cut and the formation of the adhesive layer for paper splicing, the processing speed is greatly improved.

Furthermore, in the present invention, the protective paper of the paper splicing adhesive layer on the top surface of the V-shaped end is completely peeled off, so complete automatic paper splicing can be performed.
This enables a significant reduction in the number of workers.

As described above, the present invention has excellent practical effects.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing an installed state of an automatic paper splicing pretreatment device according to an embodiment of the present invention. FIG. 2 is a perspective view of the arm, FIG. 3 is a perspective view of the table and table support plate, and FIG. 4 is a perspective view of the hopper. FIG. 5 is a schematic front view showing the installed state of the main processor, and FIG. 6 is a schematic front view of the internal configuration of the main processor. FIG. 7 is an explanatory diagram of the structure and operation of the T-tab applicator, and FIG. 8 is a perspective view of the T-tab. FIG. 9 is an explanatory diagram of the operation of the cutter and cutter. FIG. 10 is an explanatory diagram showing the formation of the adhesive layer for paper splicing and the formation of V-shaped cuts. 1st
FIG. 1 is an explanatory diagram showing the state in which the T-tab is attached. FIG. 12 is a schematic explanatory diagram of a paper feeding section in a conventional rotary press. FIG. 13 is a perspective view of a web that has been subjected to conventional paper splicing pretreatment. 1...Automatic paper splicing pretreatment device, 2...Rotary press, 4...
Rolling paper, 5... Support member, 8... Telescopic mechanism, 9... Arm, 10... Main processor, 10a... Case body, 11...
Table, 11c...Tab insertion hole, 12...Table support board, 13...Tab paster, 14...Hopper, 1
8... Horizontal blade cutter, 20... Round cutter, 22... Adhesive layer former, 24... Tab, 25... Cut.

Claims (1)

[Claims] 1. A base end is fixed at a position above the side of the web 4 rotatably supported by the support member 5 of the paper feed section of the rotary press,
A telescopic mechanism 8 whose lower end is movable upwardly and downwardly; a proximal end supported in the lower part of the telescopic mechanism 8 so as to be movable and rotatable in the front-rear direction, and a distal end thereof. an arm 9 whose parts are movable in the horizontal direction; a case body 10a is supported at the distal end of the arm 9; a cutter 20 for forming a cut at the starting end of the web inside the case body 10a; and a paper cutter 20 on the upper surface of the starting end. a main processor 10 equipped with an adhesive layer forming device 22 for forming a replacement adhesive layer;
a table support plate 12 located below the table support plate 12 and supported by the telescopic mechanism 8; a table 11 disposed above the table support plate 12 so as to be movable in the left-right direction and having at least one tab insertion hole formed therein; ;
a tab pasting device 13 disposed below the table support board 12 and pasting the tab 24 to the back surface of the starting end of the web from below by passing through the tab insertion hole; This preprocessing device for automatic splicing of rolled paper is comprised of a foldable hopper 14 for collecting waste paper supported by a telescoping mechanism 8.