JPS63242840A - Sheet material mechanism - Google Patents

Abstract

PURPOSE:To easily manufacture the small-sized captioned device at a low cost by drive-shifting an adsorbing means which adsorbs a loaded sheet material by advance/retreat-shifting a receiving board and sending out the sheet material by applying a flapping action onto the sheet material. CONSTITUTION:A sheet material A stored in lamination form is adsorbed by an adsorbing means 47 by advance/retreat-shifting a receiving board 20 itself for loading the sheet material for the adsorbing means 47. The sheet material A is applied with a flapping action and sent out by drive-shifting the adsorbing means. Therefore, in comparison with the prior art where complicate shift operation is carried out, the constitution can be simplified at a stroke. Therefore, the sheet material mechanism 10 can be manufactured economically as a whole, and the simple constitution can be obtained, and the reduction in size of the sheet material mechanism 10 can be easily realized, and the maintenance management can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet body single-feeding mechanism, and more specifically, for example, when a sheet body such as a sheet film is sucked by suction means such as a suction cup or the like to be sheet-fed, the sheet body is The displacement movement of one tray on which the sheets are placed and the swinging movement of the suction cup give a stirring effect to the sheet bodies, and the stacked sheet bodies are moved one by one.
The present invention relates to a sheet body single-feeding mechanism having a simple structure and capable of reliably feeding sheets one by one.

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 radiographic 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 radiation image recording and reproducing system that uses a stimulable phosphor (stimulable phosphor) to obtain a radiographic image of a subject has been developed, and is becoming widespread, particularly in the medical field as described above.

Here, a stimulable phosphor refers to a stimulable phosphor that, when irradiated with radiation (X-rays, α-rays, β-rays, γ-rays, electron beams, ultraviolet rays, etc.), stores a portion of this radiation energy and later excites it with visible light, etc. A fluorophore that produces stimulated luminescence according to the accumulated energy when irradiated with light.

The radiation image recording and reproducing system described above utilizes this stimulable phosphor, and radiation image information of the human body, etc. is recorded on a sheet having a layer of stimulable phosphor, and then this stimulable phosphor sheet is exposed to a laser beam. The stimulated luminescence light is generated by scanning with an excitation light of This is to output it as a visible image.

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 obtained from the stimulable phosphor sheet. Images are recorded by irradiating the film with laser light modulated based on electrical signals. 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 directly
Used for medical diagnosis, etc.

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, conventionally, various methods have been adopted to reliably take out the films stored in the magazine one by one. An example of this is shown in FIG.

That is, as shown in FIG. 1A, a magazine 4 is installed in a chamber 2 of an image recording apparatus or the like, and a plurality of sheets A are stacked and stored in this magazine 4. Therefore,
A suction cup 6 disposed in the chamber 2 and constituting a single-sheet mechanism is displaced vertically downward and comes into pressure contact with the sheet body A stored in the magazine 4 (see FIG. 1).

Next, the sheet body A is sucked through the suction cup 6 under the action of a suction mechanism (not shown), and as shown in FIG. Displace. Therefore, a stirring action is applied to the sheet body A that is sucked by the suction cup 6, and this prevents other sheet bodies A from coming into close contact with this sheet body A. Next, by swinging the suction cup 6 to the left,
The sheet A held by suction on the suction cup 6 is sent out to a pair of conveying rollers 8 (see FIG. 1d).

As can be easily understood from the above description, in the prior art,
The suction cup 6 is moved forward and backward with respect to the magazine 4, and is also oscillated to give a stirring action to the sheet body A held by the suction cup 6. That is, in order to avoid double sheet wafers, it is necessary to displace the suction cup 6 along a complicated trajectory, and the structure of the sheet wafer mechanism itself including the suction cup 6 becomes quite complicated. It has been pointed out that the manufacturing cost of the mechanism increases. Furthermore, in order to displace the suction cup 6 on the above-mentioned trajectory, it is necessary to provide a displacement means including a link, etc., which presents a disadvantage in that the single-fed mechanism becomes larger as a whole.

The present invention has been made in order to overcome the above-mentioned disadvantages, and includes swinging and displacing a suction means including a suction cup, etc., and moving the cradle itself of a magazine or the like in which a plurality of sheet bodies are stacked to the suction means. The sheet body is configured to be moved forward and backward relative to the sheet body, and the sheet body is attracted to the suction means through the forward and backward movement of the pedestal, and the sheet body is given a stirring action by the rocking operation of the suction means and sent to the conveyance means. In this way, the laminated sheet bodies are reliably fed out one by one, and in particular, the displacement operation of the suction means is simplified all at once.Thereby, the sheet body can be manufactured at low cost and is suitable for downsizing. The purpose is to provide a single-wafer mechanism.

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. further includes a first displacement means for swingingly displacing the suction means, and a second displacement means for displacing the pedestal on which the sheet body is placed forward and backward with respect to the suction means.
displacing means, displacing the pedestal under the action of the second displacing means and suctioning the sheet body with the suction cup;
The present invention is characterized in that the suction means is oscillated under the action of the first displacement means to apply a stirring action to the sheet body 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 10 indicates a sheet body single-feeding mechanism according to the present invention. The sheet body single-fed mechanism 10 is disposed within a chamber 12 of an image recording apparatus or the like, and in this case, the sheet body single-fed mechanism 10 includes a pedestal displacement means 14 .

The pedestal displacement means 14 substantially includes a first rotational drive source 16, and a disk-shaped first cam member 18 is attached to a rotational drive shaft 16a extending from the first rotational drive source 16. is pivoted at a position offset a predetermined distance from its center. Then, the swingable pedestal 20 engages with the first cam member 18 .

The pedestal 20 has a plate shape, and has a protrusion 22 extending vertically upward at one end thereof, and a rod 24 is engaged with the other end. Although not shown, the rod 24 is rotatably supported within the chamber 12. Furthermore, a support member 26 is fixed to the lower part of the pedestal 20 in close proximity to the protrusion 22 side, and a rotating body 28 is rotatably supported on this supporting member 26.
It is in sliding contact with 8.

On the other hand, above the pedestal 20, a suction cup displacement means 30 is arranged. The suction cup displacement means 30 is a second rotary drive source 3
A disc-shaped second cam member 34 is pivotally attached to a rotary drive shaft 32a extending from the second rotary drive source 32 at a position offset from the center by a predetermined distance. Also, room 1
A rotary shaft 38 constituting the suction cup displacement means 30 is rotatably supported within the suction cup 2 . An intermediate portion of an arm 40 is engaged with the rotating shaft 38, and a rotating body 42 that slides on the second cam member 34 is supported on the upper side of the arm 40. One end of the body 44 is engaged, and the other end of the elastic body 44 is fixed within the chamber 12 (not shown). Therefore, the rotating body 42 is constantly pressed against the second cam member 34 through the tensile force of the elastic body 44.

In addition, a mounting portion 4 is provided at the bottom of the arm 40 by bending it.
6 is formed, and a suction means 47 is attached to this attachment portion 46.

The suction means 47 includes a tubular body 48 that fits into the mounting portion 46 . At the upper part of the tube body 48, this tube body 48
A flange portion 50 is formed to lock the tube body 48 to the mounting portion 46, and a suction cup 52 is attached to the lower end portion of the tube body 48. Further, a coil spring 54 is interposed between the suction cup 52 and the mounting portion 46, and the elastic force of the coil spring 54 presses the tube body 48 vertically downward.

In this case, a suction mechanism (not shown) is connected to the tube body 48.

Note that a plurality of arms 4 are arranged on the rotating shaft 38 at predetermined intervals.
0a is attached at the middle part of each, and the arm 40
The above-mentioned suction means 47 is attached to a mounting portion 46a formed at the lower end of a. For this reason, the same reference numerals are given to the same components, and detailed explanation thereof will be omitted.

Further, in FIG. 2, reference numeral 56 indicates a conveying roller pair, and this roller pair 56 is connected to the sheet body single feeding mechanism 10.
This is for conveying the sheet body A fed out through the conveyor to, for example, an image recording section (not shown).

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.

First of all, multiple seas!・Magazine 58 that stores body A in layers
is stored in the pedestal 20. At that time, the pedestal 20 and the suction means 4
7 is located at the position shown in FIG. 3a.

Therefore, the first rotational drive source 16 is driven to rotate the rotational drive shaft 16.
When a is rotated in the direction of the arrow, the first cam member 18 eccentrically attached to the rotary drive shaft 16a rotates. Therefore, the cam member 18 rotates in an eccentric state, and the outer circumferential surface that is furthest away from the rotary drive shaft 16a moves upward.

Therefore, the rotating body 2 slidingly contacts the outer peripheral surface of the first cam member 18.
8 rises, and the pedestal 20 is swung vertically upward about the rod 24, and the sheet bodies A in the magazine 58 placed on the pedestal 20 are separated from each other forming the suction means 47. This results in pressure contact with the suction cup 52 (see Figure 3). As a result, the suction cup 52 is pressed against the surface of the sheet body A through the elastic force of the coil spring 54, and in this state, a suction mechanism (not shown) is driven to hold the sheet body A with the suction cup 52. Adsorb.

Furthermore, when the first cam member 18 rotates in the direction of the arrow under the driving action of the first rotational drive source 16, this first cam member 18
The outer circumferential surface that is furthest away from the center of rotation moves vertically downward again. Therefore, the rotating body 28 that is in sliding contact with the outer circumferential surface of the first cam member 18 descends, and the pedestal 20 is oscillated vertically downward. Therefore, the magazine 58 disposed on the pedestal 20 is swung vertically downward about the rod 24, leaving the sheet body A sucked on the suction cup 52 and the other sheet bodies A. It will descend (see Figure 3 C).

Next, when the rotary drive shaft 32a is rotated in the direction of the arrow under the driving action of the second rotary drive source 32, the second cam member 34 eccentrically attached to the shaft is similarly rotated in the direction of the arrow.
The outer circumferential surface of the second cam member 34 that is furthest away from the center of rotation contacts the rotating body 42 . Therefore, the arm 40 swings in the direction of the arrow in FIG. The arm 40a similarly swings in the direction of the arrow. As a result, a stirring action is applied to the sheet body A held by the suction cup 52, and for example, the magazine 58 is taken out in close contact with the sheet body A held by the suction cup 52. Another sheet body A (see the two-dot chain line in FIG. 3d) is separated by the swinging displacement of each suction cup 52, and is stored in the magazine 58 again.

The second cam member 34, which rotates under the driving action of the second rotational drive source 32, is positioned with its outer circumferential surface farthest away from the center of rotation in the opposite direction to the rotating body 42, as shown in FIG. 3e. At this time, the arm 40 swings in the opposite direction to the above due to the tensile force of the elastic body 44, and the suction cup 52 swings toward the roller pair 56. As a result, the end portion of the sheet body A, which is suctioned and held by the suction cup 52, enters the gap between the pair of rollers 56. At this time, by stopping the drive of the suction mechanism (not shown) and rotationally driving the pair of rollers 56, the sheet body A held between the pair of rollers 56 is conveyed to the image recording section (not shown).

In this case, in this embodiment the respective displacement means 14.30
Therefore, the structure of the sheet body single-feeding mechanism 10 can be simplified.

That is, the suction cup displacement means 30 is connected to the second rotational drive source 32.
A disk-shaped second cam member 34 that is engaged with and rotates eccentrically, and a suction means 47 are attached to the second cam member 3.
The arm 4 is oscillated through a rotating body 42 that is in sliding contact with the arm 4.
It basically consists of 0. On the other hand, the pedestal displacement means 14 includes a disc-shaped first cam member 18 that is engaged with a first rotational drive source 16 and rotates in an eccentric state, and the first cam member 18 that is swingably supported at one end. The rotating body 28 that comes into sliding contact with
It has a pedestal 20 which is swingably displaced via the cradle 20.

In this way, by simply displacing the pedestal 20 and the suction means 47 through the action of the respective displacement means 14 and 30, the conventional suction cup 6 shown in FIGS. It becomes possible to perform an operation equivalent to a complicated displacement operation. In the end, the structure of the sheet body single feeding mechanism 10 is simplified at once, and the sheet bodies A stacked in the magazine 58 can be reliably fed out one by one to the image recording section etc. is obtained.

Further, in this embodiment, the pedestal 20 is configured to be oscillatedly displaced around the rod 24, but it is also possible, for example, to engage the rod 24 to the magazine 58 itself and oscillately displace it. It is. Furthermore, it is easily understood that, in addition to the above-mentioned rocking mechanism, the same effect can be obtained by configuring the pedestal 20 or the magazine 58 to be movable up and down.

Note that the cam members 18 and 34 have different rotational drives m1.
The cam members 18 and 34 are rotatably driven via a single rotational drive source via a gear train or the like.
It is also possible to rotate the two together.

Furthermore, FIG. 4 shows another embodiment of the sheet body single feeding mechanism according to the present invention. Note that the same reference numerals and a are used for the same components as the sheet body single-fed mechanism according to the first embodiment.
, and detailed explanation thereof will be omitted.

As described above, in the sheet body single-feeding mechanism 10 according to the first embodiment, a cam mechanism is employed for the pedestal displacement means 14 and the suction cup displacement means 30. However, it goes without saying that the same effect can be obtained even if a link mechanism is attached to the pedestal displacement means 14 and the suction cup displacement means 30. Therefore, the pedestal displacement means 14a and the suction cup displacement means 30 constituting the sheet body single-feeding mechanism 10a according to the second embodiment are
A link mechanism is substantially used for a.

That is, the pedestal displacement means 14a is the first rotational drive source 6.
0, and one end of the first link piece 62 is pivotally attached to a rotary drive shaft 60a extending from the first rotary drive source 60.

One end of a second link piece 64 is rotatably engaged with the other end of the first link piece 62, and the other end of the second link piece 64 is attached to a support member 66 fixed to the lower part of the pedestal 20a. is attached to.

On the other hand, the suction cup displacement means 30a is driven by a second rotational drive source 68.
One end of the third link piece 70 is pivotally attached to a rotary drive shaft 68a extending from the second rotary drive source 68. One end of a fourth link piece 72 is rotatably engaged with the other end of the third link piece 70, and the other end of the fourth link piece 72 is held at the upper end of an arm 74 equipped with the suction means 47a. are doing.

In such a configuration, when the first rotation drive source 60 is driven to rotate the rotation drive shaft 60a in the direction of the arrow, the first link piece 62 pivotally attached to the rotation drive shaft 60a and the first link piece 62 are rotated. The pedestal 20a is oscillated in the direction of the arrow about the rod 24a via the engaged second link piece 64. Therefore, when the pedestal 20a is displaced vertically upward, the sheet body A stored in the magazine 58a
is sucked and held by the suction cup 52a.

After the pedestal 20a swings vertically downward, if the rotary drive shaft 68a is rotated in the direction of the arrow under the driving action of the second rotary drive source 68, the rotary drive shaft 68a is rotated in the direction of the arrow. The arm 74 is oscillated through the third link piece 70 and the fourth link piece 72 that engages with the third link piece 70, and the sheet body A, which is suctioned and held by the suction cup 52a, is given a stirring action. Thereafter, it is conveyed to an image recording section (not shown) via a pair of rollers 56a.

In the end, the sheet body single-fed mechanism 10 according to the second embodiment
It will be easily understood that the same effects as those of the sheet body single-feeding mechanism 10 according to the first embodiment can be achieved also in the case of a.

As described above, according to the present invention, by moving the pedestal itself on which the stacked and stored sheet bodies are placed forward and backward relative to the suction means, the sheet bodies are suctioned by the suction means, and the suction means is driven and displaced. By doing so, a stirring action is applied to the sheet body and the sheet body is fed out. Therefore, the displacement operation of the suction means and the displacement operation of the pedestal can be achieved with extremely simple mechanisms. The advantage is that the structure of the single-wafer mechanism is greatly simplified. In the end, it becomes possible to manufacture the entire sheet body single-fed mechanism economically, and since the structure is simple, the sheet body single-fed mechanism can be easily downsized, and maintenance management is also easy. Can be mentioned.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments.
For example, in addition to photosensitive films, the present invention can also be used to form various sheet bodies such as stimulable phosphor sheets, etc., and various improvements and design changes are possible without departing from the gist of the present invention. Of course.

[Brief explanation of the drawing]

Figures 1a to d are schematic explanatory diagrams of a film sheet feeding operation according to the prior art, Figure 2 is a partially omitted perspective view of a sheet body sheet feeding mechanism according to the present invention, and Figures 3a to e are diagrams according to the present invention. FIG. 4 is an explanatory diagram of the operation when sheet bodies are fed one by one by such a sheet body single feeding mechanism, and FIG. 4 is a schematic explanatory diagram of a sheet body single feeding mechanism according to another embodiment of the present invention. IO... Sheet body single wafer mechanism 12... Chamber 14...
・Displacement means 18...Cam member 20...
pedestal 24...rod 28...rotating body 34...cam member 40...arm 47...adsorption means 48...pipe body
52...Suction cup 58...Magazine

Claims (1)

[Claims] (1) A sheet body single-fed mechanism that sucks and holds a plurality of stacked sheet bodies with a suction means and sends them out one after another, the suction means including a suction cup connected to the suction mechanism via a conduit, Furthermore, a first displacement means for swingingly displacing the suction means, and a second displacement means for displacing the pedestal on which the sheet body is placed forward and backward relative to the suction means are provided, and the operation of the second displacement means is provided. After displacing the pedestal downward and adsorbing the sheet body with the suction cup, the suction means is oscillated under the action of the first displacement means to apply a stirring action to the sheet body, and the sheet body is A sheet body single-fed mechanism characterized by being configured to form a single sheet.