JPS62275940A - Sheet body feeding mechanism - Google Patents

Abstract

PURPOSE:To send out securely one by one laminated sheet bodies from a magazine or the like by swinging at least once an arm member to give a swing operation to the sheet body sucked by a sucker. CONSTITUTION:When a rotary drive shaft 22a is rotated in the direction B, a rotary shaft 30 is rotated to swing members 34a, 34b in the direction B. An arm member 70 is displaced vertically downward through a bearing 60 guided by a first opening 66a of a guide plate 62 so that respective suckers 82 are pressed against the upper surface of a sheet film received in a magazine. Next, after the suction, the rotary drive shaft 22a is rotated in the reverse direction C. Thus, the swing members 34a, 34b fixed to the rotary shaft 30 are swung in the direction C to displace the arm member 70 vertically upward through the bearing 60. That is, the suckers 82 are displace upward and take one end side of the sheet film out of the magazine after giving swing operation to the sheet film.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention The present invention relates to a sheet body single-feeding mechanism, and more specifically, it reliably feeds sheet bodies such as sheet films, which are stacked and stored one by one, one by one. The present invention relates to a single sheet feeding mechanism for feeding.

2. Description of the Related Art Radiographic imaging apparatuses are commonly used that irradiate a subject such as a human body with radiation, for example, X-rays, record a radiation image on a photosensitive film, and use the image for medical diagnosis. In this case, the photosensitive film is loaded into the radiation image capturing apparatus in a light-shielded state so as not to be exposed to external light, and an image of the subject is recorded by directly irradiating the photosensitive emulsion surface of the film with X-rays.

Incidentally, in recent years, a radiographic image recording and reproducing system has been developed that uses a storage phosphor (stimulable phosphor) to obtain a radiographic image of a subject. be.

Here, a storage phosphor is a material that, when irradiated with radiation (X-rays, α-rays, β-rays, β-rays, electron beams, ultraviolet rays, etc.), accumulates a portion of this radiation energy and later emits visible light. A phosphor that produces stimulated luminescence light corresponding to the accumulated energy when irradiated with excitation light.

The radiation image recording and reproducing system described above utilizes this stimulable phosphor, in which radiation image information of a human body, etc. is recorded once on a sheet having a layer made of the stimulable phosphor, and then the stimulable phosphor sheet is is scanned with excitation light such as a laser beam to generate stimulated luminescence light, the obtained stimulated luminescence light is read photoelectrically to obtain an image signal, and based on this image signal, a recording material such as a photographic light-sensitive material, The image is output as a visible image on a CRT or the like.

Here, when recording an image on a recording material, an image recording device, for example, an image output laser printer device is used. This device stacks and stores sheet-shaped photosensitive films, which are recording materials, through a magazine, takes out the films one by one using a sheet-fed mechanism consisting of a suction cup, etc., and then extracts the film from the stimulable phosphor sheet. An image is recorded by irradiating the film with a laser beam that is modulated based on an electrical signal generated by the film. The film on which the new image has been recorded is then conveyed into an automatic developing device, and after undergoing a developing process, is stored at a predetermined location or is directly provided for medical diagnosis or the like.

In this case, since the films sent out by the single-fed mechanism are stacked and stored in the magazine, the films are often in close contact with other adjacent films due to static electricity or the like. . For this reason, when a film is sucked with a suction cup and taken out from the magazine, there is a possibility that a plurality of films adjacent to the film may be simultaneously fed out of the magazine while being in close contact with the film.

Therefore, in order to take out the films stored in the magazine one by one, a single-fed mechanism has been adopted in which the films are taken out from the magazine by fanning them. Technical ideas are disclosed. This is shown in FIG.

That is, in FIG. 1, reference numeral 2 indicates a single-fed mechanism, and five pipe bodies 6a to 6e are slidably fitted into a support member 4 constituting the single-fed mechanism 2. Suction cups 8a to 8e are attached to the distal ends of the tubes 6a to 6e, and stopper members 10a to 10e are fixed at positions separated by a predetermined distance from the suction cups 8a to 8e, respectively. In this case, when positioning the support member 4 parallel to the sheet body A, the suction cups 8a and 88 are closest to the sheet 1 to body A, while the suction cup 8c is the most distant from the sheet body A. At the same time, the mounting positions of the respective stopper members Oa to 10e are selected so that the suction cups 8h and 8d are located between the suction cups 8a and 8e and 80. Then, the respective suction cups 8a to 8e and the support member 4
Coil springs 12a to 12e are arranged between them. Note that a vacuum suction mechanism (not shown) is connected to the ends of the tubular bodies 6a to 6e.

In the above configuration, by displacing the support member 4 toward the sheet body A, all of the suction cups 8a to 8e are attached to the sheet body AI.
The displacement operation of the support member 4 is stopped at the position where it comes into contact with the surface of the support member 4.

Therefore, by energizing a vacuum suction mechanism (not shown), the sheet body A1 is suctioned by each suction cup 8a to 8e.

Next, when the support member 4 is displaced in the direction away from the sheet body A, first the base members 1 to 10c fixed to the tube body 6C are attached to the support member 4 through the elastic force of the coil spring 12C. When engaged, the suction cup 8C is displaced upward in the figure. Therefore, a slight gap is defined between the sheet body A1 and the next sheet body A2 adjacent thereto.

Furthermore, when the support member 4 is displaced upward, the stopper portion U' is
lOb, 10d are in contact with the support member 4, and the suction cups 8b, 8
d is displaced upward. Finally, when all the suction cups 8a to 8e are displaced in the -L direction, the sheet body A1 is deformed so as to curve in both directions.

Therefore, a space is defined between the sheet body A1 and the next sheet body A2, and the sheet body A2 is
They will not be transported together. In the end, the stacked sheet bodies A are sent out one by one via the sheet feeding mechanism 2.

However, in the prior art described above, the suction cups 8a to 8e
In order to curve the sheet body A, the lengths of the tubes 6a to 6e to which the suction cups 8a to 8e are mounted must be selected, respectively.

That is, in the prior art illustrated in FIG.
It is formed into three different lengths of e, and therefore,
There are disadvantages in that the manufacturing work of the tube becomes complicated and the manufacturing cost increases. Moreover, it has been pointed out that coil springs of different lengths must be installed in each tube body, and that the selection, manufacturing, and adjustment work of the length of the coil springs together with the tube bodies becomes extremely troublesome. has been done. Furthermore, the sheet body A1 is held in a curved state at the end of sheet feeding. Therefore, the next conveyance path must have a structure that can convey the curved sheet body A, which results in a complicated structure.

The present invention has been made to overcome the above-mentioned disadvantages, and includes preparing a plurality of identical tube bodies and suction cups, integrally attaching the tube bodies and suction cups to an arm member, and A guide member such as a hair ring is attached to the member, the guide member is fitted into a groove formed in the kite board and displaced along the shape of the groove, and the arm member is swung at least once. A sheet body single-feeding mechanism with a simple structure that makes it possible to reliably feed stacked sheet bodies one by one from a magazine etc. by applying a stirring motion to the sheet body sucked by the suction cup is provided. The purpose is to provide

In order to achieve the above object, the present invention provides a sheet body single-fed mechanism that suction-holds a plurality of stacked sheet bodies with a suction means and sends them out one after another, wherein the suction means connects a suction mechanism to a suction mechanism through a conduit. The respective suction means are integrally attached to the arm member, and the arm member is provided with a guide member that fits into the guide opening, and the guide member is connected to the opening. It is characterized in that the arm member is swung by being displaced along the shape of the section, and is configured to apply a stirring action to the sheet body sucked by the suction cup so as to separate the sheet body into sheets.

Next, preferred embodiments of the sheet body single-feeding mechanism according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 2, reference numeral 20 indicates a sheet body single-feeding mechanism according to the present invention. A first sprocket 24 is pivotally supported on a rotary drive shaft 22a extending from a rotary drive 'tA22 constituting the sheet body single feeding mechanism 20, and one end of a chain 26 is suspended on the first sprocket 24. The other end of the chain 26 is suspended on a second sprocket 28,
The second sprocket 28 is pivotally attached to one end of the rotating shaft 30. Furthermore, end parts of plate-shaped swinging members 34a and 34b are fixed to both ends of the rotating shaft 30, respectively. and,
Sliding members 35a and 36b are engaged with the swinging members 34a and 34b.

That is, a plate 37 installed upright inside an image recording device, etc.
Mounting plates 38a and 38b are fixedly spaced apart from each other by a predetermined distance in the vertical direction. A pair of parallel guide bars 40a, 40b are oriented vertically and fixed to the respective mounting plates 38a, 38b, and the sliding member 3 is attached to the guide bars 40a, 40b.
6a is supported. A support pin 4 is attached to the sliding member 36a.
A hair ring 44 is rotatably supported through the bearing 2, and the end of the swinging member 34a engages with this bearing 44. Projections 46a, 46b are formed on both sides of the sliding member 36a, and springs 48a, 48b are interposed between the projections 46a, 46b and the mounting plate 38b. Furthermore, a pin member 50 is implanted on the surface of the sliding portion 36a opposite to the support pin 42.

On the other hand, the sliding member 36b is configured in the same manner as the sliding member 36a described above, and the mounting plates 38c and 3 are fixed to the plate body 37b.
A pair of parallel guide bars 40C140d are fixed between 8d, and a sliding member 3 is attached to each guide bar 40c, 40d.
6b is slidably mounted. A bearing 44a that engages with the swinging member 34b is rotatably supported on one surface of the sliding member 36b, and the projections 46c and 46d formed on both sides of the sliding member 36b and the mounting plate 33d A spring 48C148d is interposed between them, and a pin member 52 is implanted on the surface opposite to the bearing 44a.

By the way, one end of a connecting plate 54 is swingably engaged with the pin member 50, and a spring 56 is interposed between the connecting plate 54 and the sliding member 36a. For this reason, the connecting plate 54
is constantly pulled in the direction of arrow C by the tension of the spring 56. Further, a fixing pin 58 is fixed to the other end of the connecting plate 54, and a bearing 60 is supported approximately in the middle of the fixing pin 58, and this bearing 60 engages with a guide plate 62.

The guide plate 62 is fixed to the plate body 37a, and a groove 64 is formed in the guide plate 62. In this case, the groove 64 includes a first opening 66a that extends a predetermined length from below to above in the vertical direction, and a second opening that curves rightward in the figure from the end of the first opening 66a. 66b, and the second
A third opening 66C is inclined upwardly to the left from the end of the opening 66b.

Then, the arm member 70 engages with the fixing pin 58 and the pin member 52. A first arm 72 that constitutes the arm member 70 and is fixed to the fixing pin 58 is formed shorter than a second arm 74 that constitutes the arm member 70 and is swingably supported by the pin member 52. Ru. In addition, the first
A third arm 76 is integrally formed above the arm 72 and the second arm 74 and extends in the horizontal direction, and a plurality of tube bodies 78 are fitted into the third arm 76 . Pipe body 7
The tube body 78 is connected to the third
While being fixed to the arm 76, a suction cup 82 is attached to one end of each tube body 78. Note that a vacuum suction device (not shown) is connected to the other end of the tube body 78.

The sheet body single feeding mechanism according to this embodiment is basically constructed as described above, and its operation and effects will be explained next.

Therefore, the operation of taking out the sheet film A from the magazine 86 that stores a plurality of sheet films A in a stacked manner will be described in detail below with reference to FIGS. 3A to 3C.

First, under the driving action of the rotational drive source 22, the rotational drive shaft 22a
When the sprocket is rotated in the direction of arrow B in FIG. 2, the first sprocket 24 pivoted thereon rotates in the direction of arrow B,
A second sprocket I.28 rotates via a chain 26 suspended from the first sprocket 24. For this reason,
The rotating shaft 30 that pivotally supports the second sprocket 28 rotates,
The swinging members 34a and 34b fixed to the rotating wheel 30 swing in the direction of arrow B. Therefore, the swinging member 3
4a, 3. The sliding members 36a and 36b that engage with Ib are vertically displaced downward via springs 43a and 48b and 48C148d. In the end, the sliding members 36a, 36
The arm member 70 supported by b is vertically displaced downward via the hair ring 60 guided by the first opening part 66a of the guide plate 62, and each suction cup 80 is moved by the spring 48a.
The sheet film A is pressed against the upper surface of the sheet film A stored in the magazine 86 through an elastic force of 18d (FIG. 3C).
reference).

Next, a vacuum suction device (not shown) is driven to rotate the rotary drive source 22 in the opposite direction with the sheet film A1 being sucked by each suction cup 82. Therefore, the rotary drive shaft 22a rotates in the direction of the arrow C, and the rotary shaft 30 rotates in the direction of the arrow C via the first sprocket 1-24, the chain 26, and the second sprocket 28 that are pivotally attached to this. A swinging member 34a fixed to the rotating shaft 30
, 34b swing in the direction of arrow C. Therefore, the sliding portion jjA'36a that engages with each swinging member 34a, 34b
, 36b are displaced vertically upward against the tensile forces of the respective springs 43a, 48b, 48c, 48d, and the arm member 70 is moved through the hair ring 60 guided by the first opening 66a of the groove 64. is displaced in three directions in the vertical direction. That is, the suction cup 82 is displaced upward in the vertical direction, and the - end side of the sheet film 80 is taken out from the magazine 86.

Further, the rotational drive source 22 is driven to rotate each sliding member 36.
When a and 36b are displaced vertically upward, the bearing 6
0 reaches the second opening portion 66b of the groove portion 64.

At this time, since the connecting plate 54 is pulled in the direction of the arrow C by the tensile force of the spring 56, the continuous feeding plate 54 swings in the direction of the arrow C using the bottle member 50 as a fulcrum, and the connecting plate 54 Hair ring supported through fixed bin 5th 6
0 is displaced along the curved shape of the second opening 66b. Therefore, the arm member 70 fixed to the connecting plate 54 via the fixing pin 58 similarly swings in the direction of arrow C. Here, as shown in FIG.
The other sheet film A2, which was about to be taken out from the magazine 86 in close contact with this sheet film A, is again moved to the magazine 86.
stored inside.

Then, the rotational drive source 22 is driven to move the sliding members 36a and 3.
When the hair ring 6b is displaced upward in the vertical direction, the hair ring 60 separates from the second opening portion 66b and fits into the third opening portion 66c. Therefore, the arm member 70 swings in the opposite direction (arrow B direction), and the end of the sheet film A, which is suctioned and held by the suction cup 82, comes into sliding contact with the conveying roller 33a.
, '88b (see Figure 3C). Therefore, by rotationally driving the rollers 88a, 88b and stopping the driving of the vacuum suction device (not shown), the sheet film A1 is sandwiched between the rollers 88a, 88b and conveyed to a predetermined image recording section. .

Next, the rotary drive source 22 is driven to rotate the rotary drive shaft 22a in the direction of arrow B to lower the sliding members 36a and 36b, and the sheet film A in the magazine 88 is fed in the same way as in the process described above. conduct.

By the way, in this embodiment, the guide plate 62 is composed of a single plate, but for example, as shown by the dashed line in FIG. 2, the guide plate 62 may be composed of a plurality of bending plates. You may. Further, the shape of the groove portion 64 is determined depending on the direction in which the film A stored in the magazine 86 is stirred, and the shape of the groove portion 64 is
It will be easily understood that the suitable selection is made depending on the positions of 8a, 88b, etc.

Therefore, another embodiment of the sheet body single-feeding mechanism according to the present invention is shown in FIG. 4 and the fifth opening and b.

In this case, the same reference numerals are given to the same components as in the first embodiment, and detailed explanation thereof will be omitted.

A relatively long first connecting plate 90 is swingably supported on the sliding member 36a constituting the sheet body single wafer mechanism 20a via a pin portion JfA'50 and a spring 56. A first bearing 94a is pivotally supported at one end of the connecting plate 90 via a fixing pin 92. A short second connecting plate 90 is connected to the other end of the first connecting plate 90 via a pin member 96.
A connecting plate 98 is swingably supported, and this second connecting plate 9
A fixing pin 100 is fixed to the end of the fixing pin 8, and a second bearing 94b is supported on the fixing pin 100.

A first arm 72 constituting the arm member 70 is attached to the end of the fixing pin 100, and the arm member 70
The second arm 74 is swingably engaged with the other sliding member 36b. That is, like the sliding member 36a, the sliding member 36b is provided with a pin member 50a corresponding to the pin member 50, and one end of the long connecting plate 90a is oscillated via the pin member 50a. Supported for free movement. A pin member 96a is attached to the other end of the connecting plate 90a,
The second arm 74 is supported by this bottle member 96a.

Further, a stopper pin 102 is provided at the lower end of the first connecting plate 90.
is fixed, and this stopper pin 102 and the second connecting plate 98
A spring 104 is interposed between the two.

On the other hand, two guide plates 62a and 62b are provided to form the guide groove 64a. After opening the lower end of the groove 64a to the outside and directing it vertically upward,
It has a first curved part 106a that curves to the right in the figure, and a second curved part 106a that slopes to the upper left in the figure.
A curved portion 106h is provided. Note that a substantially central portion of the groove portion 64a is open to the outside through a wide opening 1.08 defined between the guide plates 62a and 62b.

In such a configuration, the sliding members 36a and 36b are operated under the action of the rotational drive source 22, similar to the first embodiment described above.
Displace the arm member 70 via the suction cup 82
After adsorbing and holding the sheet film A through the rollers 88a and applying a stirring action to the sheet film 8, the respective rollers 88a,
It is conveyed to a predetermined image recording section while being inclined toward the 88b side.

In this case, the sheet body single-fed mechanism 20 according to the second embodiment
2, each hair ring 94a, 94b independently performs the fanning operation of the sheet film A and the feeding operation to the rollers 88a, 88b, as shown in FIGS. 5a and 5b.

That is, as shown in FIG. 5a, when the rotary drive source 22 is driven to displace the arm member 70 vertically upward,
First, the second bearing 94b is fitted into the first curved portion 106a, and the arm member 70 is tilted so that the respective suction cups 82
The sheet film A held in place is bent and a stirring action is applied. Further, when the arm member 70 is displaced upward in the vertical direction, the first bearing 94a fits into the second curved portion 106b, and the first connecting plate 90 swings. At this time, the suction cup 82 is fixed to the first connecting plate 90 because the collar pin 102 contacts the second connecting plate 98 and tilts the arm member 70 in the same way as the first connecting plate 90.
The sheet film A held by suction is inclined with one end thereof directed toward the rollers 88a and 88b (see FIG. 5). Further, in this case, since the second bearing 94b enters into the opening 108, the arm member 70 can swing appropriately. Therefore, if the drive of the vacuum suction device (not shown) is stopped and the respective rollers 88a and 88b are rotationally driven, the sheet film A is moved between the rollers 88a and 88b.
The image recording material 88b is held between the image recording members 88b and conveyed to the image recording section.

As described above, according to the present invention, the same suction cup and tube body are integrally attached to the arm member, and the groove portion that bends the arm member and the guide such as a bearing that is fitted into and guided by the groove portion. It is configured to be displaced via a member to apply a stirring action to the sheet body held by suction on the suction cup so as to separate the sheet body into sheets. Therefore, even if the sheet bodies stacked and stored in the magazine are in close contact with each other due to the generation of static electricity, the sheet bodies can be reliably fed one by one from the magazine to the next process. . Furthermore, by selecting the shape of the groove portion into which the guide member is fitted, the ejection operation of the sheet body can be easily changed. This provides the advantage of being able to easily deal with this.

In the following, the present invention has been described with reference to a preferred embodiment, but the present invention is not limited to this embodiment, and can be applied to a radiographic image capturing device or a reading device constituting the above-mentioned radiographic image recording and reproducing system. Of course, various improvements and changes in design are possible without departing from the gist of the present invention, such as being able to be used to take out a plurality of stimulable phosphor sheets one by one from a stacked storage system. .

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a sheet body single-fed mechanism according to the prior art, FIG. 2 is a partially omitted perspective view of a sheet body single-fed mechanism according to the present invention, and FIGS. FIG. 4 is a partially omitted perspective view of another sheet sheet feeding mechanism according to the present invention. FIGS. 5 a and b are diagrams of the sheet feeding mechanism shown in FIG. 4. It is an operation explanatory diagram. 20.20a... Sheet body single wafer mechanism 30... Rotating shaft 34a, 34b... Swinging member 35a, 36b... Sliding member 54... Connection plate 60... Bearing 62.62a, 62
b...Guide plate 64.64a...Groove portion 66
a-c...opening 70...arm member 78
...Pipe body 82...Suction cup 90...Connection plates 94a, 94b...Bearing 98...Connection plates 106a, 106b...
・Curved section procedural amendment (voluntary) August 21, 1988 1. Indication of the case Patent Application No. 119976 of 1988 2) Title of the invention Sheet body single-fed mechanism 3, person making the amendment Relationship to the case Patent Applicant 4, Agent 5, Date of amendment order Self-motivated "Urari na explanation of concave curves" 7, Contents of amendment (1) As stated in the attached document, jmlbe 1, page 1, lines 4 to 3 of the specification ``Claim 1'' on line 12 of the page is supplemented as follows. [2] Scope of Claims (1) A sheet body single-fed mechanism that suction-holds a plurality of stacked sheets with a suction means and sequentially sends them out, the suction means being connected to a suction mechanism via a pipe line. The suction means is integrally attached to an arm member, and the arm member is provided with a guide member that fits into the guide opening, and the guide member is shaped into the shape of the opening. 1. A sheet body single-feeding mechanism characterized in that the arm portion 10A is moved along the suction cup to swing the arm portion 10A, and to apply a stirring action to the sheet body sucked by the suction cup so as to feed the sheet body one by one. (2) In the sheet body single-fed mechanism according to claim 1, the arm member equipped with the suction means is swingably engaged with the sliding member that engages with the drive means, and the arm member is engaged with the sliding member that engages with the drive means. A rotating body is provided, and a guiding opening is formed in the second guide F plate, and the sliding member is reciprocated under the action of the driving means to move the rotating body to the plate A. A sheet body single-fed mechanism in which a group knee L Liao branch air arm member is swung with respect to a sliding member to give a stirring action to the sheet body which is attracted by a suction means. (3) In the sheet body single-feeding mechanism as set forth in claim 2, the guide opening has first and second openings, and the rotary body provided on the member 13 is connected to the first A plurality of sheets of the sheet body are separated by engaging the arm member and swinging the arm member to apply a stirring action to the sheet body adsorbed by the suction means, and further move the rotating body to the second side. -jDO
A sheet body single-feeding mechanism in which the end portion of the sheet body is inclined so as to be able to enter between a pair of conveyance rollers via an arm member that is fitted into and swings from B. (4) In the sheet body single-feeding mechanism according to claim 2, a connecting plate is swingably disposed on the sliding member, a first rotating body is provided at one end of the connecting plate, and the An arm member and a second rotating body are attached to the other end of the connecting plate so as to be swingable in one direction via a stopper member, and the guide dose "1 part of the first I'J D &3 is rotated in the second rotation. The body is fitted together and the arm member is oscillated to apply a stirring action to the sheet body to be sucked by the suction means to fill a plurality of sheets of the sheet body. The connecting plate and the arm member are fitted into the second fixed ejector of the section, and the connecting plate and the arm member are integrally swung, so that the end of the sea body can be inclined so as to be able to enter between the pair of conveying rollers. 2) Specification "Detailed Description of the Invention J rp, page 17, line 4, "... second curved to the right" has been replaced with "... second curved to the right" First, correct the second curved line. 3. On page 17, line 4 of the same page, correct the phrase "along the curved shape..." to "along the shape IJS...". 4. In the 10th line of page 20, the phrase ``...the number that curves to the right'' has been corrected to ``...the number that bends or curves to the right.'' 5. On page 20, line 11 of the same page, the statement "The curved part 106a of 1..." is corrected to "The opening part 106a of 1...". 6. On page 20, line 12 of the same page, correct the phrase "...curved portion 106b" to read "...opening 106b." 7. In the 11th line of page 2, the phrase “1 curved portion 106a...” has been replaced with “1 open bottom portion 10
6a..." and correct it. 8. On page 21, line 15 of the same document, the statement "...is the second curvature" is corrected to "...is the second opening." 9. Specification [Brief Description of Drawings d, page 24, No. 15]
Line, ']06a, 106b--...Curved part' is '1
06a, 106h...opening".

Claims (4)

[Claims] (1) A sheet body single-fed mechanism that sucks and holds a plurality of stacked sheets with a suction means and sends them out one after another, wherein the suction means has a plurality of suction cups connected to the suction mechanism via a conduit. The suction means is integrally attached to the arm member, and the arm member is provided with a guide member that fits into the guide opening, and the guide member is displaced along the shape of the opening to move the arm. 1. A sheet body single-feeding mechanism, characterized in that the sheet body single-feeding mechanism is configured to swing a member and apply a stirring action to the sheet body sucked by the suction cup so that the sheet body is fed one by one. (2) In the sheet body single-fed mechanism according to claim 1, the arm member equipped with the suction means is swingably engaged with the sliding member that engages with the drive means, and the arm member is engaged with the sliding member that engages with the drive means. a rotating body is disposed, a guide opening is formed in one or more guide plates, the opening has one or more curved parts, and the sliding member is reciprocated under the action of the drive means; a sheet body single-fed mechanism, in which the rotary body is fitted into the curved portion, the arm member is swung relative to the sliding member, and a suction means applies a stirring action to the sheet body to be suctioned; (3) In the sheet body single-fed mechanism according to claim 2, the guide opening has first and second curved parts, and the rotating body provided on the arm member is connected to the first curved part. When fitted, the arm member is oscillated to apply a stirring action to the sheet body adsorbed by the suction means to prevent a plurality of sheet bodies, and further, the rotary body is fitted to the second curved portion. A single sheet feeding mechanism in which the end of the sheet is inclined so that it can enter between a pair of conveying rollers via an arm member that swings. (4) In the sheet body single-feeding mechanism according to claim 2, a connecting plate is swingably disposed on the sliding member, a first rotating body is provided at one end of the connecting plate, and the An arm member and a second rotating body are attached to the other end of the connecting plate so as to be swingable in one direction via a stopper member, and the second rotating body is fitted into the first curved part of the guide opening. The arm member is oscillated to exert a stirring action on the sheet body to be sucked by the suction means to prevent a plurality of sheet bodies, and the first rotating body is moved to the second curved portion of the guide opening. The sheet body single feeding mechanism is configured such that the connecting plate and the arm member are fitted to each other so that the connecting plate and the arm member are integrally swung so that the end portion of the sheet body can be inclined so as to be able to enter between a pair of conveying rollers.