JPH1052873A - Cut sheet feeding and supplying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively feed a cut sheet, to prevent clogging of the sheet and to improve reliability of a cut sheet feeding and supplying operation by incorporating a conveying means for cutting a rolled sheet by a knife cylinder and an anvil cylinder via a dancer roll to convey it to a predetermined position. SOLUTION: A rolled sheet PR is cut in a predetermined length by a knife cylinder 26 and an anvil cylinder 27 via a dancer roll 19 for storing it in a predetermined length by rotation of a feed roll 15 to absorb a slack at the time of conveying to form a cut sheet Pc. The sheet Pc sucked and held by a vacuum pad 40 is fed forward by movement of a conveying lever 37. When coupling of a moving base 36 to a belt 43 is disconnected by a clutch and a rodless cylinder 49 is driven, the base 36 and the lever 37 are moved to feed the sheet Pc sucked and held by the pad 40 to a predetermined position. As a result the feeding is finished and sucking and holding of the sheet Pc by the pad 40 are released, reliability of its feeding operation is improved by accurate cutting and conveying of the rolled sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a cut sheet feeding apparatus for sending a roll sheet, cutting the sheet into a predetermined length, and conveying the cut sheet.

[0002]

2. Description of the Related Art When conveying paper of a predetermined size, roll paper is cut to form cut paper, and a large number of such cutter papers are stacked on a pallet in advance. Then, the cutter paper stacked on the pallet is sent out one by one by a feed roll and conveyed.

[0003]

However, in such a method of feeding cut sheets, a feed roll takes out many cut sheets stacked on a pallet in order from the top. At this time, since the rigidity of the cut sheet itself is low, the cut sheet below the cut sheet adheres to the cut sheet to be taken out, so that there is a case where one cut sheet cannot be fed reliably.

Further, when the cut paper is a thin cardboard core base paper of about 125 g / m ² and the paper width exceeds 1 m, when the cut paper is sent out and conveyed, the rigidity of the cut paper itself is low. However, a fixed conveyance attitude cannot be maintained, and cut paper may be turned up during conveyance, resulting in paper jam.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a cut sheet feeding apparatus which improves cut sheet feeding work reliability by appropriately feeding cut sheets. With the goal.

[0006]

According to the present invention, there is provided a cut sheet feeding apparatus for driving a rotatable feed roll for feeding roll paper wound up in a roll form. The roll paper unwound by the dancer roll is stored for a predetermined length, the roll paper fed through the dancer roll is cut into a predetermined length by a knife cylinder and an anvil cylinder, and the roll paper is cut by the knife cylinder and the anvil cylinder. And conveying means for holding and conveying the cut sheet.

Accordingly, the roll paper wound up in a roll shape is sent out by driving the feed roll to rotate, and the roll paper unwound by the feed roll is stored by the dancer roll for a predetermined length to absorb the slack. Then, the roll paper is supplied between the knife cylinder and the anvil cylinder which rotate with each other, and is cut into a predetermined length, and the cut paper thus cut is held by the transfer means and transferred to a predetermined position.

Further, in the cut sheet feeding apparatus of the present invention, the roll paper is cut to a predetermined length by one rotation of the knife cylinder.

Accordingly, the roll paper is accurately cut to an appropriate length by the knife cylinder.

Further, in the cut sheet feeding apparatus according to the present invention, the roll paper is cut into an arbitrary shape by a shape of a cutter mounted on the knife cylinder.

Therefore, by setting the shape of the cutter mounted on the knife cylinder to, for example, a straight line, an oblique shape, or a V-shape, the roll paper can be cut into an arbitrary shape.

Further, in the cut sheet feeding apparatus of the present invention, the conveying means is provided with a turning means capable of turning and holding the cut sheet cut by the knife cylinder.

Accordingly, the cut sheet cut out by the knife cylinder is held by the turning means and can be conveyed in any direction.

[0014]

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

FIG. 1 is a plan view of a cut sheet feeding apparatus according to an embodiment of the present invention, FIG. 2 is a front view of the cut sheet feeding apparatus, and FIGS. FIG. 8 schematically shows a process and a knife cylinder and a cut sheet cut by the knife cylinder.

In the cut sheet feeding device of the present embodiment,
As shown in FIGS. 1 and 2, a roll support shaft 14 is rotatably supported on a support base 12 on a base 11 by a pair of left and right bearings 13. The roll support shaft 14 is wound into a roll. the roll paper P _R is attached which is. Further, the roll paper P of the roll support shaft 14 is
Roll 15 feed adjacent the _R are rotatably supported, the feed roll 15 has a rotationally drivable by an unillustrated driving device, it is possible to unwind the roll paper P _R. A pair of left and right support columns 16 are erected on the base 11 adjacent to the feed roll 15, and guide rollers 17, 18 are rotatably supported back and forth on the support columns 16, and dancer rolls 19 are provided. Are supported rotatably and movably up and down. That is, the dancer roll 19 is intended to absorb the slack when transporting the roll paper P _R fed with stored predetermined length, the support posts 16
A wire 21 is engaged with a pulley 20 attached to the upper end of the wire 21, a dancer roll 19 is connected to one end of the wire 21, and a heavy weight 22 slightly lighter than the dancer roll 19 is connected to the other end.
Are connected.

Further, a support frame 23 having a pair of left and right side walls is provided on the base 11 adjacent to the dancer roll 19, and a pair of pinch rolls 24 and 25 are rotatably mounted on the support frame 23 in the front and rear directions, respectively. While being supported, the roll paper P sent out between the pinch rolls 24 and 25 is
A knife cylinder 26 and an anvil cylinder 27 for cutting the _R into a predetermined length are rotatably supported so as to vertically contact each other. A drive motor 28 is provided beside the support frame 23.
And an output shaft thereof is drivingly connected to a driven shaft 30 via a driving belt 29, and a speed reducer 31 is connected to the driven shaft 30. The speed reducer 31 is connected to a pinch roll via a connecting mechanism 32. 24, 25, a knife cylinder 26 and an anvil cylinder 27 are drivingly connected. Therefore,
By driving the drive motor 28, the pinch rolls 24,
25, the knife cylinder 26, and the anvil cylinder 27 can be rotationally driven synchronously in a predetermined direction.
The peripheral speeds are matched by the speed reducer 31 and the connection mechanism 32.

Incidentally, the outer peripheral surface of the knife cylinder 26
As shown in detail in FIG. 8A, a cutter parallel to the rotation axis is used.
33 is attached, and the knife cylinder 26 makes one rotation
By doing, roll paper P_RIs shown in detail in FIG.
Thus, a rectangular cut sheet P of a predetermined length_C1Cutting into
Can be. Also, cut paper P to be cut out_C1The shape of the cutter
33 can be changed depending on the mounting position. That is,
The outer peripheral surface of the knife cylinder 26a is shown in detail in FIG.
As shown, the cutter 33a inclined with respect to the rotation axis is
Mounted, knife cylinder 26a makes one revolution
The roll paper P_RAs shown in detail in FIG.
A parallelogram cut paper P of a predetermined length _C2Cut into
be able to. Also, on the outer peripheral surface of the knife cylinder 26b,
Is, as shown in detail in FIG.
A V-shaped cutter 33b is attached, and a knife
One rotation of the binder 26b causes the roll paper P_RThe figure
As shown in detail in FIG. 10 (b), a predetermined length of cut paper P_C3
Can be cut into In this way, the knife cylinder
Cut paper of any shape depending on the shape of the attached cutter
Can be cut out.

A guide rail 35 is mounted adjacent to the base 11 by front and rear mounting bases 34, and a movable base 36 is movably supported on the guide rails 35. A base end of a transport lever 37 is fixed to the movable table 36, while a support plate 39 is mounted on a distal end of the transfer lever 37 via a turning mechanism 38, and a vacuum pad 40 is provided on a lower surface of the support plate 39. Installed. A pair of front and rear pulleys 41 and 42 are pivotally attached to a side portion of the guide rail 35, and a belt 43 is wound around the pulley 41. The moving table 36 is connected to the belt 43 via a clutch mechanism 44. The pulley 41 has a reduction gear 45 and a pulley 46.
While the driven shaft 30 is connected to the pulley 47.
Are fixed, and a belt 48 is looped between the pulley 46 and the pulley 47. Accordingly, by driving the drive motor 28, the transport lever 37 can be moved via the movable table 36, and the transport lever 37 and the pinch rolls 24, 25, the knife cylinder 26, the anvil cylinder 27 and the moving speed.

Further, a rodless cylinder 49 is mounted on the guide rail 35, and the transport lever 37 can be moved by the rodless cylinder 49 via the moving table 36.

[0021] Here it will be described with reference to FIGS. 2-7 for carrying operation of the cutting and the cut sheet P _C1 of the roll paper P _R by a cut sheet feeder of the present embodiment.

As shown in FIG. 3, the roll paper P _R is wound on a roll support shaft 14, the roll paper P _R is fed by feed roll 15 is driven to rotate, a pair of guide rolls 17, 18 and is fed while being guided by the dancer roll 19, the slack during transportation accumulated a predetermined length is absorbed by the roll paper P _R dancer roll 19. Then, the roll paper P _R is fed by the pinch rolls 24 and 25, the knife cylinder 26, an anvil cylinder 27 for rotating together by the drive motor 28, vacuum pad 40 which the tip section is attached to the transport lever 37 movable carriage 36 Is held by suction. At this time, the driving force of the driving motor 28 is transmitted to the pinch rolls 24 and 25, the knife cylinder 26 and the anvil cylinder 27 by the reduction gear 31 and the coupling mechanism 32, and the pulleys 47, 46 and 4
1, 42, belts 48, 43, and a reduction gear 45 are transmitted to the moving table 36, and the pinch rolls 24, 25, the knife cylinder 26, the anvil cylinder 27, and the moving table 36 are moving at the same speed. _R is transported while maintaining a predetermined tension.

As shown in FIG. 4, the roll paper P _R is taken out in front of the knife cylinder 26 and anvil cylinder 27 by the transport lever 37, the knife cylinder 2
Cutter 33 6 comes into contact with the outer peripheral surface of the anvil cylinder 27, the roll paper P _R is cut at a predetermined length, the cut sheet P _C
Is formed. Then, as shown in FIG. 5, when the drive motor 28 is subsequently driven to rotate the pinch rolls 24 and 25, the knife cylinder 26, and the anvil cylinder 27, and the transport lever 37 of the movable base 36 is moved,
Cut sheet P _C which is sucked and held by the vacuum pad 40 of the transporting lever 37 with the fed forward, the roll paper P _R is the knife cylinder 26 and anvil cylinder 27
Sent more forward.

Thereafter, as shown in FIG. 6, when the knife cylinder 26 makes one rotation from the start of feeding (the state shown in FIG. 3), the drive motor 28 is stopped and the pinch rolls 24, 2 are stopped.
5. The rotation of the knife cylinder 26 and the anvil cylinder 27 and the movement of the transport lever 37 of the moving table 36 are stopped. Here, as shown in FIG.
The connection between the belt 43 and the rodless cylinder 4 is released.
Driving 9, moving table 36 and the transport lever 37 is moved, cut paper P _C the vacuum pad 40 is held by suction
Is fed to a predetermined position. It is also possible to carry the vacuum pad 40 and the cut sheet P _C by a horizontal pivot by pivoting mechanism 38.

[0025] In this way feeding of the cut sheet P _C is completed, releasing the suction and holding of the cut paper P _C by a vacuum pad 40, by driving the rodless cylinder 49 in the reverse, moving table 36 and the transport based position lever 37 (to the position shown in FIG. 3), a vacuum pad 40 suction-holds the front end portion of the roll paper P _R. Then, in the same manner as described above, repeated conveying and cutting and the cut sheet P _C cutting and transport of the roll paper P _R

[0026]

As described above in detail in the embodiment, according to the cut sheet feeding apparatus of the present invention, a drive rotatable feed roll for feeding rolled roll paper and an unwinding roll are provided. A dancer roll that stores the cut roll paper to a predetermined length, a knife cylinder and an anvil cylinder that cuts the roll paper into a predetermined length, and a transport unit that holds and transports the cut cut paper are provided. By cutting the sheet at an appropriate length and carrying it appropriately, the reliability of the cut sheet feeding operation can be improved.

Further, according to the cut paper feeding apparatus of the present invention, the roll paper is cut into a predetermined length by rotating the knife cylinder once, so that the roll paper is cut into an appropriate length by the knife cylinder. Can be cut accurately.

Further, according to the cut sheet feeding apparatus of the present invention, the roll paper is cut into an arbitrary shape according to the shape of the cutter mounted on the knife cylinder, so that the shape of the cutter mounted on the knife cylinder is reduced. For example, the roll paper can be cut into an arbitrary shape by forming a straight, diagonal, or V-shape.

Further, according to the cut sheet feeding apparatus of the present invention, since the conveying means is provided with the turning means capable of turning and holding the cut sheet cut by the knife cylinder, the cut sheet cut by the knife cylinder is turned. By turning by means, the cut sheet can be transported in any direction.

[Brief description of the drawings]

FIG. 1 is a plan view of a cut sheet feeding device according to an embodiment of the present invention.

FIG. 2 is a front view of the cut sheet feeding device.

FIG. 3 is a schematic view illustrating an operation process by the cut sheet feeding device.

FIG. 4 is a schematic diagram illustrating an operation process by the cut sheet feeding device.

FIG. 5 is a schematic view illustrating an operation process by the cut sheet feeding device.

FIG. 6 is a schematic diagram illustrating an operation process by the cut sheet feeding device.

FIG. 7 is a schematic view illustrating an operation process by the cut sheet feeding device.

FIG. 8 is a schematic diagram illustrating an operation process by the cut sheet feeding device.

FIG. 9 is a schematic view illustrating an operation process by the cut sheet feeding device.

FIG. 10 is a schematic view of a knife cylinder and a cut sheet cut by the knife cylinder.

[Explanation of symbols]

Reference Signs List 14 Support shaft 15 Feed roll 19 Dancer roll 24, 25 Guide roll 26 Knife cylinder 27 Anvil cylinder 28 Drive motor (conveying means) 31 Reducer 33 Cutter 36 Moving table 37 Transport lever 38 Rotating mechanism 40 Vacuum pad 49 Rodless cylinder (Transport means) P _R roll paper P _C cut sheet

Claims (4)

[Claims] 1. A feed rotatable feed roll for feeding roll paper wound up in a roll form, a dancer roll for storing a predetermined length of roll paper unwound by the feed roll, and a feed roll fed through the dancer roll. A knife cylinder and an anvil cylinder for cutting the cut roll paper into a predetermined length, and a conveying means for holding and conveying the cut paper cut by the knife cylinder and the anvil cylinder. Feeding device. 2. The cut sheet feeding apparatus according to claim 1, wherein the roll paper is cut into a predetermined length by rotating the knife cylinder once. 3. The cut sheet feeding apparatus according to claim 1, wherein the roll paper is cut into an arbitrary shape by a shape of a cutter mounted on the knife cylinder. 4. A cut sheet feeding apparatus according to claim 1, wherein said conveying means is provided with a turning means capable of turning and holding the cut sheet cut by said knife cylinder. Feeding device.