JP2006008402A - Sheet separation device in sheet magazine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet separation device capable of excellently separating sheets at a high speed. <P>SOLUTION: Blank sheets 10 stacked in a sheet magazine are taken out one by one from the top thereof by a sheet transfer means. Two conveying shafts 22, 22 are rotatably arranged on the sheet magazine, and a blank sheet group placed on the shafts 22, 22 is conveyed toward a take-out port 12a by the rotation of the shafts 22, 22. Sheet supporting parts 28 to support a lower end corner part of the blank sheet 10 and notched parts 30 capable of allowing the lower end corner part to pass through are provided in each shutter 26 arranged on a tip part facing the take-out port 12a of each conveying shaft 22. The shutters 26, 26 are rotated in one direction corresponding to the sheet take-out operation by the sheet transfer means, and the lower end corner part passes through the notched parts 30, 30, lower end corner parts of the succeeding blank sheet 10 are supported by the sheet supporting parts 28, 28. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sheet separating apparatus for separating sheets one by one when sheets stacked in a sheet magazine are taken out from a take-out port.

As the sheet separating device, for example, in Patent Document 1, a hook that reciprocates is used in order to separate a book (sheet) one by one. That is, with the hook facing the outlet of the magazine being prevented from flowing out, the leading book is supported by the center guide and adsorbed by the vacuum pad. Next, the hook is rotated to the position where it is removed from the magazine outlet to release the support for the noh book, and then the vacuum pad is turned to the position where the hook is facing the outlet of the magazine while holding the first letter. By returning, the hook is inserted between the following letters and the leading letter is completely separated from the following letters. Then, after the vacuum pad is returned from the rolled state to the original state, the center guide and the vacuum pad are moved toward the take-out position, whereby the leading book is taken out.
Japanese Patent No. 3504844

  In the above-mentioned conventional sheet separating apparatus, when the sheet is separated, the vacuum book is attracted to the book and then the support for the hook is released, and the hook is returned after the book is read by the vacuum pad. Therefore, it is difficult to speed up the separation operation. Further, the adoption of a configuration in which the hook is reciprocated is also a factor that hinders the speeding up of the disconnecting operation.

  That is, the present invention has been proposed to solve the above-mentioned problems inherent in the prior art, and is a sheet magazine in a sheet magazine that can satisfactorily separate sheets at high speed. An object is to provide a separation device.

In order to overcome the above-mentioned problems and achieve the desired object suitably, a sheet separating apparatus in a sheet magazine according to the present invention includes:
A sheet separating device that separates a leading sheet taken out from a take-out port of a sheet magazine in which sheets are stacked in a standing posture from a subsequent sheet,
Sheet transport means comprising a suction section that sucks the lower end side of the leading sheet and takes out the sheets one by one from the take-out port of the sheet magazine;
A sheet feeding means for placing the sheets accumulated in the sheet magazine and conveying the sheets toward the take-out port;
A pair of shutters which are rotated in one direction around a rotation axis along the sheet conveying direction by the sheet feeding means and are arranged at the take-out port so as to correspond to the respective lower end side corners of the sheet;
Each of the shutters is provided with a sheet support portion for supporting a lower edge portion of the sheet and a passage portion through which the lower edge portion can pass in the circumferential direction thereof.
Each of the shutters is rotated corresponding to the operation of the sheet transfer means so that the lower edge corners of the leading sheet taken out by the sheet transfer means pass through the passages of the shutters. After the side corner portion passes through the passage portion, the lower end corner portion of the subsequent sheet is supported by the sheet support portion.

  According to the sheet separating apparatus in the sheet magazine of the present invention, the sheet can be separated at a high speed by using the shutter that rotates in one direction. Therefore, it is possible to cope with a high speed of taking out the sheet from the sheet magazine, and it is possible to improve the processing capacity (the number of packages) when this apparatus is used in a boxing machine. In addition, since the sheet feeding means is configured to move the lower end side of the placed sheet, the lower end side corner of the sheet is stably fed to the shutter arranged corresponding thereto, and the sheet separation is good. Therefore, it can cope with the high speed.

  According to the sheet separating apparatus of the second aspect, the sheet separation can be further speeded up by continuously rotating the shutter. According to the sheet separating apparatus of the third aspect, since the sheet is conveyed by the conveying shaft formed with the spiral groove for propelling the sheet by rotation, stable conveyance of the sheet can be achieved. Further, according to the sheet separating apparatus of the fourth aspect, the lower end side of the sheet taken out from the sheet magazine by the sheet transporting means is moved upward after being lifted above its placement height. The sheet can be taken out well from

  Next, a sheet separating apparatus in a sheet magazine according to the present invention will be described below with reference to the accompanying drawings by giving a preferred embodiment. For convenience of explanation, “left and right” refers to a direction that intersects the conveyance direction of the blank sheet in the sheet magazine.

  As shown in FIG. 1, a sheet separating apparatus according to an embodiment is employed in a packaging machine such as a wraparound type caser, and a sheet magazine 12 in which a plurality of blank sheets (sheets) 10 are stacked in a standing posture. In the sheet magazine 12, the sheet feeding means 14 for conveying the blank sheet group toward the take-out port 12a of the magazine 12, and the blank sheet 10 are taken out one by one from the head (downstream end in the conveying direction) of the blank sheet group. A sheet transporting means 18 for transporting the transport conveyor 16 disposed below is provided.

  The sheet feeding means 14 disposed in the sheet magazine 12 extends between the pair of frames 20 and 20 spaced apart in the sheet conveying direction along the conveying direction and is spaced apart in parallel in the left-right direction. It is provided with a pair of conveying shafts 22 and 22 as sheet feeding members, and each shaft 22 and 22 is continuously rotated in one direction by a corresponding driving motor 24 and 24 (only one shown) as a driving source. Configured to be Both conveying shafts 22, 22 are arranged so as to be inclined downward toward the take-out port 12 of the sheet magazine 12 with respect to the horizontal plane, and the plurality of blank sheets 10 are in a posture substantially orthogonal to the conveying shafts (sheet conveying direction) 22, 22. It is placed on both conveying shafts 22 and 22. In addition, the distance between the axial centers of both the conveying shafts 22 and 22 is set to be substantially the same as the length of the lower end side 10b located at the lower end of the blank sheet 10, and the lower end of the blank sheet 10 is set to each of the conveying shafts 22 respectively. In the side 10b, the vicinity of the lower end side corner portion 10a located on the left and right is placed. Each conveying shaft 22 has a solid or hollow circular cross section, and a spiral groove is formed on the outer peripheral surface thereof in a direction for propelling the blank sheet 10 placed by the rotation toward the take-out port 12a. The blank sheet group is conveyed by the rotation of both conveying shafts 22 and 22, and the leading blank sheet 10 is taken out to the take-out port 12a. In the embodiment, the conveying shafts 22 and 22 are configured to rotate in opposite directions to each other, and the directions of the spiral grooves formed in the shafts 22 and 22 are set to be reversed left and right.

  Shutters 26 for separating the leading blank sheet 10 taken out from the take-out opening 12a and the subsequent blank sheet 10 are integrally rotated at the front end portion facing the take-out opening 12a in each of the transport shafts 22 respectively. Are arranged coaxially. That is, the shutter 26 is configured to continuously rotate in one direction with the shaft 22 around the rotation axis of the transport shaft 22. The shutter 26 is formed in a disk shape having a larger diameter than the conveying shaft 22, and a portion protruding in the radial direction from the shaft 22 supports the lower end side corner portion 10 a of the leading blank sheet 10 facing the take-out port 12 a. It functions as the sheet support portion 28. Further, as shown in FIGS. 3A and 3B, the shutter 26 is formed with a notch portion 30 as a passage portion that allows passage of the lower edge portion 10a of the blank sheet 10 at one place in the circumferential direction. Has been. That is, the sheet support portion 28 and the notch portion 30 are continuously formed in the circumferential direction of the shutter 26, and the notch portion 30 corresponds to the lower end side corner portion 10 a of the blank sheet 10. Is configured to allow the sheet 10 to be removed. The shutter 26 is set so as to make one rotation corresponding to the operation of taking out one blank sheet 10 by the sheet transfer means 18.

  The shapes of the notches 30 and 30 formed in the shutters 26 and 26 are bilaterally symmetric. As shown in FIG. 3B, the cutout portions 30 and 30 are viewed from the direction of the rotation axis when they reach the separation position. In addition, the left side has a substantially right-angled L shape corresponding to the shape of the lower edge corner portion 10a of the blank sheet 10 (the right side has an inverted L shape). Further, in the sheet support portion 28, the end edge portion 28 a positioned on the rear side in the rotation direction with respect to the notch portion 30 is directed along the rotation axis toward the notch portion 30 (front side in the rotation direction). After the first blank sheet 10 passes through the notch 30, an inclination (in the embodiment, both sides in the thickness direction are inclined but only one of them may be provided) is formed. The support portion 28 is configured to smoothly enter between the leading blank sheet 10 and the subsequent blank sheet 10.

  A leading edge position sensor (not shown) for detecting the left and right end portions of the leading blank sheet 10 is provided on each of the left and right sides of the take-out opening 12a in the sheet magazine 12, and the leading blank sheet 10 is provided with a shutter 26, It is configured to detect contact with the 26 sheet support portions 28, 28. When the leading edge position sensor detects that the left and right end portions of the leading blank sheet 10 conveyed by the sheet feeding means 14 have reached the shutters 26, 26, the conveying shafts 22, 22 on the side corresponding thereto are detected. The rotation of the (shutters 26, 26) is set to stop. Stop positions (referred to as initial stop positions) of the shutters 26 and 26 at this time are set by angle detection means (not shown) provided on the respective conveyance shafts 22, and the sheet support portions 28 of the respective shutters 26. The end edge portion 28b opposite to the inclined end edge portion 28a is set at a position that supports the vicinity of the lower end side corner portion of the blank sheet 10. In the embodiment, the lower end side continuous to the corner portion of the blank sheet 10 is supported by the sheet support portion 28 (see FIG. 3A). The leading end position sensor is used to convey the lower end side of the leading blank sheet 10 to a position where movement is restricted by the shutters 26 and 26 when a plurality of blank sheets 10 are first accumulated in the sheet magazine 12. Used.

  The take-out port 12a of the sheet magazine 12 is provided with a support (not shown for the side support) on the upper and left and right sides thereof, and is placed on the transport shafts 22 and 22 and has a lower end. The upper end portion and the left and right end portions of the leading blank sheet 10 that are supported in the vicinity of the side corner portions by the sheet support portions 28, 28 of the shutters 26, 26 are supported by these supports. In this support state, the support tool is arranged so that the leading blank sheet 10 facing the take-out port 12a is placed in a posture substantially orthogonal to the transport shafts 22 and 22, so that it is accumulated in the sheet magazine 12. The direction in which the blank sheets 10 are arranged (the sheet conveying direction of the conveying shaft 22) is inclined with respect to the horizontal plane, and the upper end portion of the blank sheet 10 placed on the conveying shafts 22 and 22 in the sheet magazine 12 is inclined forward. Become. The left and right ends of the blank sheet group conveyed by the sheet feeding means 14 are guided and aligned by guides (not shown) disposed in the sheet magazine 12 and extending along the sheet conveying direction. It has become.

  An auxiliary separating device 32 for separating the upper end portion of the leading blank sheet 10 from the succeeding blank sheet 10 is disposed above the take-out opening 12 a in the sheet magazine 12. The auxiliary separation device 32 includes a suction cup 34 that is connected to suction means (not shown). The suction cup 34 moves forward and backward with respect to the blank sheet 10, so that the leading blank sheet 10 sucked and held at the time of advancement of the suction cup 34 is moved. The upper end is configured to separate from the subsequent blank sheet 10 during retraction.

  The sheet transfer means 18 disposed outside the take-out port 12a in the sheet magazine 12 includes a plurality of suction cups (suction portions) 36, and a required operation is given by a rotation mechanism (not shown). The unit 38 has a plurality of sets (two sets in the embodiment, but may be three sets or more), and each takeout unit 38 is configured to take out the blank sheets 10 one by one from the sheet magazine 12. Each suction cup 36 is connected to a suction means (not shown), and the suction means is set to perform suction-holding and suction-release of the blank sheet 10 by each suction cup 36 by performing ON-OFF control at an appropriate timing. It is. At the time of taking out the sheet, each take-out part 38 moves close to the lower end side of the leading blank sheet 10 facing the take-out port 12a of the sheet magazine 12, and then moves upward slightly while being separated from the take-out port 12a. It is configured to follow a trajectory that moves downward. Thereby, as shown in FIG. 4, the blank sheet 10 sucked and held by the take-out portion 38 and taken out from the sheet magazine 12 has its lower end side 10b positioned at its placement height (conveying shaft 22 facing the take-out port 12a). The height of the upper end of the blank sheet 10 is lifted above the upper edge H so as to be separated from the lower end side of the subsequent blank sheet 10 and taken out from the take-out opening 12a, and then moved downward. . When the lower end side portion of the leading blank sheet 10 is taken out from the take-out port 12a, the notches 30, 30 of the shutters 26, 26 arrive at the separation positions corresponding to the lower end side corner portions 10a, 10a. The sheet is set to be allowed to be taken out.

  The blank sheet 10 taken out from the sheet magazine 12 by the sheet transfer means 18 is delivered to the transport conveyor 16 disposed below. A folding guide 40 is disposed between the sheet magazine 12 and the transport conveyor 16, and the blank sheet 10 is folded in two by the folding guide 40 when it is delivered to the transport conveyor 16. The blank sheet 10 delivered to the transport conveyor 16 is folded in such a manner that the front side in the transport direction stands upright, and is provided on the conveyor 16 and is separated from the front and rear in the transport direction. And is bent into a U-shape that opens upward and is conveyed downstream in that state.

(Effects of Example)
Next, the operation of the sheet separating apparatus in the sheet magazine according to the above-described embodiment will be described.

  A plurality of blank sheets 10 are stacked on the sheet magazine 12 in such a manner that the lower end side 10b is placed on the conveying shafts 22 and 22, and the leading blank sheet 10 is supported by the take-out port 12a. By supporting the blank sheet group, the upper end portion of the blank sheet group is inclined forward on the conveying shafts 22 and 22. When the conveying shafts 22 and 22 are rotationally driven in one direction, the lower end side portion of the blank sheet 10 is fed by the action of the spiral grooves formed on both the shafts 22 and 22, and the blank sheet group is conveyed toward the take-out port 12a. The When the front end position sensor detects the left and right end portions of the leading blank sheet 10, the rotation of the conveying shafts 22 and 22 is stopped. At this time, the sheet support portions 28 of the shutters 26 respectively support the vicinity of the lower end corner portion of the leading blank sheet 10 facing the take-out port 12a.

  When the sheet feeding unit 18 starts taking out the sheet, the take-out portion 38 comes close to the lower end side of the leading blank sheet 10 in the sheet magazine 12, and the suction cup 36 comes into contact with and holds the blank sheet 10. To do. Before the suction cup 36 of the sheet transfer means 18 sucks the blank sheet 10, the auxiliary separation device 32 operates to separate the upper end portion of the leading blank sheet 10 from the subsequent blank sheet 10. Further, the conveying shafts 22 and 22 are continuously rotated in one direction at an appropriate timing in accordance with the operation of the sheet transfer unit 18, and the shutters 26 and 26 are continuously rotated in one direction accordingly. The take-out portion 38 that sucks and holds the lower end side of the blank sheet 10 moves upward while being separated from the take-out port 12a, so that the lower end side portion of the leading blank sheet 10 is rolled up, The blank sheet 10 is separated from the lower end side. At this time, the notches 30 and 30 of the shutters 26 and 26 rotating together with the transport shafts 22 and 22 arrive at the separation positions corresponding to the lower edge corners 10a and 10a of the leading blank sheet 10 (see FIG. 3 (b)), the lower edge corners 10a, 10a of the blank sheet 10 are taken out through the notches 30,30. Next, the sheet support portions 28 and 28 of the shutters 26 and 26 that continuously rotate enter between the leading blank sheet 10 taken out from the take-out port 12a and the subsequent blank sheet 10, and are conveyed by the conveying shafts 22 and 22. By restricting the advance of the lower edge corners 10a, 10a of the subsequent blank sheet 10 to be conveyed, reliable separation of both the sheets 10, 10 is achieved. In addition, since the edge part 28a located on the rear side in the rotation direction with respect to the notch part 30 in each sheet support part 28 is inclined as described above, it is between the front and rear blank sheets 10 and 10. The sheet support portion 28 enters smoothly. Further, since the lower end side portion of the blank sheet 10 taken out by the sheet transfer means 18 is once turned upward, the lower end side portion of the leading blank sheet 10 can be reliably separated from the subsequent blank sheet 10. .

  The take-out section 38 of the sheet transfer means 18 moves downward, and accordingly, the blank sheet 10 taken out from the sheet magazine 12 is transferred downward, and the suction of the blank sheet 10 by the suction cup 36 is released. , And delivered to the conveyor 16. The blank sheet 10 delivered to the transport conveyor 16 is transported to the downstream side in a state of being folded into a U-shape that opens upward.

  That is, in the sheet separating apparatus of the embodiment, the leading blank sheet 10 and the subsequent blank sheet 10 taken out from the sheet magazine 12 are separated by the shutters 26 and 26 that continuously rotate in one direction. Separation at high speed is possible, and it is possible to cope with high-speed sheet take-out. Further, since the sheet feeding means 14 moves the lower end side portion of the blank sheet 10 placed on the conveying shafts 22, 22, the lower end side corner portions 10 a, 10 a of the sheet 10 correspond to the shutters 26, 26. Sheet separation by the shutters 26 and 26 can be achieved satisfactorily.

[Example of change]
The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately employed.
1. In the embodiment, the shutter 26 and the conveyance shaft 22 are configured to rotate integrally, but each may be driven to rotate separately. In this case, the feed amount to the take-out port 12a can be changed to an actual feed amount according to the properties such as the thickness and material of the blank sheet 10, and the blank sheet 10 can be fed satisfactorily to the shutters 26 and 26.
Further, the configuration in which the shutter 26 and the conveyance shaft 22 are driven separately is not limited to the configuration in which the shutter 26 and the conveyance shaft 22 are arranged concentrically. For example, as shown in FIGS. The left and right conveying shafts 22 and 22 support the lower end side 10b of the blank sheet 10, and the left and right lower end side corners 10a of the blank sheet 10 are respectively provided on the outer sides of the conveying shafts 22 and 22 in the left and right direction. The shutter 26 may be arranged so as to correspond to the above. In this case, the initial stop position may be set by providing angle detection means on the rotation axis 41 of the shutter 26 or an axis that rotates in synchronization therewith. In addition, you may rotate the conveyance axis | shaft 22 of this structure intermittently besides rotating continuously.
Further, when the shutter 26 and the conveying shaft 22 are driven separately, both the shutters 26 and 26 are rotated by a single drive motor 42 (see FIG. 5A) via a gear or the like so as to rotate in opposite directions. A rotating configuration may be employed.
2. The sheet feeding means 14 of the embodiment is configured to convey the blank sheet 10 by the rotation of the conveying shafts 22 and 22. However, the sheet feeding means 14 is a conveyor using, for example, a belt or a chain as the sheet feeding member. May be used. In this case, as in the previous section, the lower end side 10b of the blank sheet 10 is supported by a conveyor or the like, and the shutters 26 are provided on the outer sides in the left and right direction of the conveyor or the like. What is necessary is just to arrange | position so as to correspond to the part 10a.
3. In the embodiment, the case where one notch portion 30 is provided in the shutter 26 has been described, but a plurality of the notch portions 30 may be provided in the circumferential direction. For example, the notches 30 are provided at predetermined intervals in the circumferential direction of the shutter 26, and the lower edge corners 10 a of the blank sheet 10 pass through the notches 30 in correspondence with the removal of the blank sheet 10. The rotation may be synchronized so that the sheet support part 28 following the part 30 supports the lower edge part 10a of the subsequent blank sheet 10.
4. The rotation directions of the shutters 26 and 26 may be opposite to those in the embodiment. In this case, the edge portions 28a of the sheet support portions 28 in the left and right shutters 26, 26 at the initial stop position are set so as to support the side edge portions of the sheet lower end side corner portions 10a, respectively. In the sheet support portion 28, instead of the end edge portion 28a, the end edge portion 28b positioned below the lower end side 10b is formed in an inclined shape as described above. Further, the rotation directions of the shutters 26 and 26 may be the same. That is, each shutter 26 only needs to rotate in one direction, either forward or reverse.
5. In the embodiment, the shutter 26 has a substantially right-shaped L-shaped cutout portion 30 so as to have a shape corresponding to the substantially perpendicular lower end side corner portion 10a of the blank sheet 10 in the circumferential direction of the flat plate (disk). However, the sheet support portion 28 of the rotating shutter 26 can support the subsequent blank sheet 10 after the lower end corner portion 10a of the blank sheet 10 taken out by the sheet transfer means 18 passes through the notch portion 30. As long as it is a thing, the shape of the notch part 30 may be another shape.
6. The shutter 26 of the embodiment is driven by the drive motor 24. For example, the sheet transport unit 18 and the shutter 26 are mechanically connected, and the shutter 26 is rotated by the drive source of the sheet transport unit 18. Can be adopted.
7. Although the shutter 26 is continuously rotated in the embodiment, it may be rotated intermittently. In this case, every time the shutter 26 rotates once, the sheet support portion 28 is stopped at a position where the lower end corner portion 10a of the blank sheet 10 can be supported (for example, the initial stop position).
8. A base on which each of the conveyance shafts 22, the shutters 26, and the drive motors 24 in the embodiment is disposed is provided so as to be relatively movable in the left-right direction intersecting with the sheet conveyance direction, and the interval between the two bases is set with screws. By adopting a configuration that is changed by various adjusting means such as an axis, it is possible to cope with a case where the dimension of the blank sheet 10 in the width direction (left and right direction intersecting the sheet conveying direction) changes. When the shutter 26 and the conveying shaft 22 are separately provided as in the configuration described in the item 1 above, for example, as shown in FIGS. 5A and 5B, only the shutter 26 is moved in the left-right direction. It may be configured.
9. In the embodiment, the case where the blank sheet 10 which is bent after being taken out is accumulated in the sheet magazine 12 has been described. However, the sheet accumulated in the magazine 12 is not limited to this, You may not bend after taking out.

It is a schematic block diagram which shows the sheet separation apparatus which concerns on an Example. It is a schematic plan view which shows the take-out opening vicinity in the sheet magazine which concerns on an Example. 4A and 4B are operation explanatory views showing the vicinity of the take-out opening in the sheet magazine according to the embodiment, where FIG. 5A shows an initial stop position state of the shutter, and FIG. 5B shows a state where the notch portion faces the separation position. It is a principal part side view which shows the take-out opening vicinity in the sheet magazine which concerns on an Example. It shows the vicinity of the take-out opening in the sheet magazine according to the modified example, (a) is a plan view, (b) is a front view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Blank sheet (sheet | seat), 10a Lower end edge part, 10b Lower end part 12 Sheet magazine, 12a Outlet, 14 Sheet feeding means 18 Sheet transport means, 22 Conveyance shaft, 26 Shutter, 28 Sheet support part 30 Notch part (passing) Part), 36 Adsorption cup (adsorption part), H Placement height

Claims (4)

A sheet separating device for separating a leading sheet (10) taken out from a take-out opening (12a) of a sheet magazine (12) in which sheets (10) are stacked in a standing posture from a subsequent sheet (10). ,
A sheet transfer means (18) provided with a suction portion (36) for sucking the lower end side of the first sheet (10) and taking out the sheets (10) one by one from the take-out opening (12a) of the sheet magazine (12). )When,
Sheet feeding means (14) for placing the sheets (10) accumulated in the sheet magazine (12) and conveying the sheets (10) toward the take-out port (12a),
The sheet feeding means (14) is rotated in one direction around a rotation axis along the sheet conveyance direction, and is arranged at the take-out port (12a) so as to correspond to each lower end corner (10a) of the sheet (10). A pair of shutters (26, 26) arranged,
Each shutter (26) has a sheet support portion (28) for supporting the lower end corner portion (10a) of the sheet (10) and a passage portion (30) through which the lower end corner portion (10a) can pass. , Provided in its circumferential direction,
The sheet transfer means so that the lower end corners (10a) of the leading sheet (10) taken out by the sheet transfer means (18) pass through the passage portions (30) of the shutters (26). In response to the operation of (18), each shutter (26) is rotated, and after the lower edge (10a) passes through the passage part (30), the sheet support part (28) continues to A sheet separating apparatus for a sheet magazine, characterized in that the lower end corner (10a) of the sheet (10) is supported.   2. A sheet separating apparatus in a sheet magazine according to claim 1, wherein each shutter (26) is continuously rotated.   The sheet feeding means (14) forms a spiral groove for rotating the sheet (10) toward the take-out port (12a) by rotating on an axis parallel to the rotation axis of the shutter (26, 26). 3. A sheet separating apparatus for a sheet magazine according to claim 1, further comprising a transport shaft (22, 22). When taking out the sheet (10) from the sheet magazine (12), the sheet transfer means (18) lifts the lower end side (10b) of the sheet (10) above its placement height (H). The sheet separating apparatus for a sheet magazine according to any one of claims 1 to 3, wherein the sheet (10) is configured to move downward thereafter.

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