JPH02212831A - Sheet film loading device - Google Patents

Abstract

PURPOSE:To eliminate the need to provide many driving mechanisms corresponding to respective magazines even when the many magazines are provided by providing a film takeout means which elevates and lowers and takes sheet films out of the magazines corresponding to the respective magazines. CONSTITUTION:This sheet film loading device is provided with the magazines 12 containing sheet films F, the film takeout means 14, a holding means 16 which receives the films F from the takeout means 14 and sends them in a cassette 18, a guide means, a drawing-out and engaging means, and a driving means 66. While the film takeout means 14 elevates and lowers, the drawing-out and engaging means moves relatively without entering an engagement state and when the takeout means 14 face one magazine 12, the driving means 66 for the takeout means 14 moves the drawing-out and engaging means from the stand-by position of the magazine 12 to a film takeout position. Then the engagement member or engagement receiving member of the takeout means 14 engages the drawing-out and engaging means for the corresponding magazine 12 to draw the magazine 12 out to the film takeout position, and the takeout means 14 takes the film F out of the drawn-out magazine 12 and passes it to the holding means 16. Consequently, the number of parts is small and control and maintenance management are facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sheet film loading device for taking out sheet film from a magazine and loading it into a cassette.

[Conventional technology]

As a device for loading X-ray film into a radiographing cassette, a device has been proposed in which a suction means takes out a sheet film from a magazine and loads it into the cassette (Japanese Patent Application Laid-Open No. 62-249840). This device is
Linear sheet films are sorted by type and stored in a plurality of magazines, and the suction means suctions the edge of the film in the selected magazine and takes it out, and transfers it to a feed roller placed at the entrance of the cassette. It is designed to be held inside.

This suction means takes out the films in the magazines in a state corresponding to each of the plurality of magazines, but the corresponding magazines must be moved horizontally from the standby position to the film take-out position in order to be suctioned by the suction means. For this reason, each magazine is provided with a driving means consisting of a combination of a rack and a pinion for driving the magazine to the film take-out position. Therefore, when the number of magazines arranged in multiple stages increases, it is necessary to install the same number of drive means, which increases the number of parts and complicates control and maintenance management.

[Problem to be solved by the invention]

The present invention has been made in consideration of the above facts, and an object of the present invention is to provide a sheet film loading device that does not require a large number of drive means for moving the magazines from the standby position to the film unloading position even when a large number of magazines are provided.

[Means and Effects for Solving the Problems 3] The invention according to the present application includes a plurality of magazines each containing a sheet film and arranged vertically at a predetermined interval, and a plurality of magazines that are raised and lowered to correspond to each of these magazines. A film take-out means for taking out a sheet film, a holding means for receiving the film from the take-out means and feeding it into a cassette, and a holding means for receiving the film from the take-out means and feeding it into a cassette, and allowing each magazine to approach the film take-out means from a standby position where it does not interfere with the film take-out means and take out the film. A guide means that allows the drawer to be moved to the film ejecting position, and one of the engaging member and the engaging receiving member is provided to the film ejecting means and the other to each magazine, so that the magazine is in the standby position and the ejecting means is moved up and down. The magazine is moved to the standby position by driving the drawer engaging means, which is disengaged in the drawing direction and engaged in the drawer moving direction, and the engaging member or engagement receiving member provided on the film ejecting means. and a drive means for moving from the film to the film take-out position.

Therefore, in this invention, when the film ejecting means moves up and down to correspond to one of the plurality of magazines, the drawer engaging means is moved relative to the engaging member and the engaging receiving member without being in an engaged state. .

If the film ejecting means corresponds to one of the magazines,
A drive means provided on the film ejecting means moves the drawer engaging means from a magazine standby position to a film ejecting position. The engaging member or engagement receiving member provided on the film ejecting means of the drawer engaging means engages with the drawer engaging means attached to the corresponding magazine to draw out the magazine to the film ejecting position. Subsequently, the film take-out means takes out the sheet film from the pulled-out magazine and delivers it to the holding means.

When taking out films continuously from a specific magazine, the magazine may remain stopped at the film taking-out position, but when taking out films from a different magazine, the film taking means returns the magazine to the standby position after taking out the films. After the movement, the film ejecting means moves up and down to correspond with other magazines. In this case as well, the drawer engaging means is in a non-engaged state, so that the lifting and lowering operations are not hindered.

Furthermore, the engagement member or the engagement receiving member of the drawer engagement means is not limited to being attached directly to the magazine, but may also be attached to a moving platform etc. on which the magazine is mounted, and indirectly attached to the magazine. You can.

[Embodiments of the invention]

FIG. 1 shows a sheet film loading device 10 to which the present invention is applied.

In this sheet film loading device 10, a frame is formed by a frame 11, and an outer plate 11A fixed to the frame 11 has a light-shielding structure inside. A plurality of magazines 12 are installed at the lower part of the frame 11, and sheet films F are stored in each of these magazines 12. These sheet films F are of different types (sizes,
film type), and the desired sheet film F
is loaded into the cassette I8 by means of a take-out means 14 and a holding means 16, which constitute a film take-out means.

However, it is not limited to the case where different types of films are housed in each magazine 12, and when there is a frequently used film, the same type of film may be housed together in a plurality of magazines.

When this cassette 18 is manually loaded into the interior through the loading port 10A (usually shielded) provided at the top of the sheet film loading device 10 (in the direction of the arrow), it is pulled in by the driving force of the cassette drive mechanism 20. 1 and placed in the position shown in FIG.

As shown in FIG. 3, this cassette 18 has a dish-shaped cassette main body 18A whose interior is used as a housing portion for the sheet film F, and a lid plate 18B is pivotally supported by one end of this cassette main body 18A. The inside can be opened and closed. A claw 22 protruding from the tip of the cover plate 18B engages with a window 18C formed in a part of the cassette body 18A to maintain the closed state of the cassette body 18A, but the cassette drive mechanism 20 does not open the cassette 18. By pressing the lid bin 24, the lid opening bin 24 pushes the claw 22 into the cassette main body 18A, and the lid plate 18B is opened as shown in FIG. 3 by the biasing force of an elastic body (not shown). has been done.

Further, as shown in FIG. 1, a take-out means 26 is arranged near the film entrance/exit of the loaded cassette 18.
The suction cup 28 receives a driving force from a driving source (not shown) to take out the photographed sheet film F from the cassette main body 18A and transfer it to the conveyance roller 32. These conveyance rollers 32 receive driving force from a drive source (not shown) and send out the photographed sheet film F to the developing device 34 (in the direction of arrow B).

Note that when the cassette 18 is loaded into the sheet film loading device 10 and the lid plate 18B is opened by the opening bin 24, a lid opening/closing mechanism (not shown) is activated.
141950 and Japanese Utility Model Application Publication No. 63-141951 (means described in the specification), the lid plate 18B is opened further, and when a new sheet film F is loaded after taking out the photographed sheet film F, the lid plate 1.8B opens. may be closed and pushed out from the loading port 10A.

As shown in FIG. 2, the magazine 12 is formed in the shape of a deep dish, and a large number of unexposed sheet films F are stored therein in a stacked state. The upper end surface of this magazine 12 has a fixed cover plate 12A that closes the half opposite to the ejecting means 14, and the other half serves as an ejecting opening 12B. A slide lid 12C corresponds to the extraction opening 12B, and this slide lid 12C is connected to the extraction opening 12B as shown in FIG.
It is possible to slide the cover plate 12A under the cover plate 12A from a state in which the cover B is securely closed, and move to a state in which the take-out opening 12B is opened.

These magazines 12 are each housed in a movable table 36 installed in multiple stages on the frame 11 of the sheet film loading device 10. These moving platforms 36 are formed into a frame shape that supports the peripheral bottom of the magazine 12, and are formed with bent portions 36A that project horizontally from the upper ends of both sides. The core rests on horizontally pivoted rollers 38. These rollers 38 constitute a guide means together with the bending portion 36A. Each moving platform 3
6 is in a standby position when the magazine 12 is loaded and the state shown by the solid line in FIG.
The pulled out state is the replenishment position for the sheet film F. Furthermore, this magazine 12 is moved from the standby state to the right in FIG. 1 (in the direction of the arrow), and the state where the take-out opening 12B reaches below the take-out means 14 is the film take-out position. In the standby state of this sheet film F, the magazine 12
In order to stop the movable table 36 at a predetermined position, a notch 36B is formed in the bent portion 36A, and when the notch 36B corresponds to the roller 38, the movement of the movable table 36 is stopped.

As shown in FIG. 2, the take-out means 14 is provided with a pair of lifting frames 122 parallel to each other.

These elevating frames 122 are connected to a plurality of connecting rods 12.
4 and are fixed in parallel to each other, and a guide shaft 128 passes through a guide block 126 fixed to the outside. Further, a similar guide block 127 is fixed to one side of the elevating frame 1220, and a screw shaft 132 is screwed into the guide block 127.

The guide shaft 128 and the screw shaft 132 have vertical axes, and both upper and lower ends of the guide shaft 128 are fixed to the frame 11, and the screw shaft 132 is supported by the frame 11 and is driven by a motor (not shown). It rotates when it receives force. Therefore, when the screw shaft 132 rotates under the influence of the motor driving force, the take-out means 14 is raised or lowered so that it can correspond to each.

A suction cup 136 is disposed between these elevating frames 122 at the tip of an arm 134, and this arm 134 is pivotally supported by a shaft 138 to the tip of an arm 142. The arm 142 is supported by a shaft 144 on the lifting frame 122 . Further, motors 146 and 148 for controlling the rotation angles of these arms 134 and 142 are connected to the arms i4 and 148, respectively.
2. Attached to the lifting frame 122, an endless bell) 15
2.154 to transmit the rotational force to the arms 134.142.

As a result, the suction cup 136 moves approximately vertically downward from the state shown in FIG. The leading end of the sheet film F thus attracted is sent out to the holding means 16.

A long hole 54 is formed in the lower part of the elevating frame 122 and has a longitudinal direction along the moving direction of the magazine 12 (direction of arrow CSD).
are formed through each.

These elongated holes 54 have rollers 57 at both ends of the pull-out plate 560.
is supported through. This allows the drawer plate 56 to move along the longitudinal direction of the elongated hole 54.

A pull-out arm 58 is attached to the pull-out plate 56 from the longitudinally intermediate portion.
stands out. This pull-out arm 58 has a T-shape with an enlarged width at its tip, and corresponds to a receiving plate 62 provided on the front surface of the moving table 36 facing the take-out means 14 . A receiving opening 64 for tightly receiving the pull-out arm 58 is formed through the receiving plate 62 . One of the drawer arms 58 and the receiving port 64 forms an engaging portion and the other forms an engagement receiving portion, thereby serving as a drawer engaging means. That is, when the pull-out arm 58 moves relative to the magazine 12 in the standby state due to the vertical movement of the take-out means 14, it can freely pass through the receiving hole 64 of each magazine 12. When the magazine 12 horizontally corresponds to one of the magazines 12, it is in a stopped state, and the magazine 12 is pulled out to the film ejection position by the driving force of the drawer plate 56 in the direction of the arrow.

The motor 66 that provides driving force to this drawer plate 56! It is attached to the descending frame 122, and a pulley 67 is fixed to the output shaft of this motor 66. A portion of an endless timing belt 68 is wound around this pulley 67, and another portion of this timing belt 68 is wound around a pulley 69.

This pulley 69 is fixed to the rotating shaft 72 and applies its rotational force to the rotating shaft 72. This rotating shaft 72
is pivotally supported by the elevating frame 122, and one end of the link 73 is fixed. One end of a link 74 is pivotally supported at the tip of this link 73. The tip of this link 74 is pivotally supported by a roller 57, which allows the motor 6 to
The included angle of the links 73 and 74 is changed by the rotational force G, and the drawer plate 56 is guided by the elongated hole 54 and moves in the direction of arrow C or D.

When the moving table 36 is pulled out to the film removal position, the arm 12D protruding upward from the slide lid 12C of the magazine 12 comes into contact with the magnetic adsorption piece 76 installed on the connecting rod 124 of the elevating frame 122. Since the magazine 12 and the slide lid 12C, which move together with the moving table 36, move relative to each other, the ejection opening 12B is opened. Also motor 6
When the moving table 36 and the magazine 12 are returned to the standby position by the reverse rotation of the slider 6, the adsorption piece 76 prevents the sliding lid 12c from moving by magnetic force, so the sliding lid 12C moves relative to the magazine 12 and closes the ejection opening. 12B is closed.

As shown in FIG. 2, the holding means 16 includes a pair of elevating frames 42 fixed in parallel to each other by a plurality of connecting rods 44, and the sheet film F is held between these elevating frames 42. There is.

Guide block 4 fixed to the outside of the lifting frame 42
A guide shaft 48 whose axis is perpendicular and whose upper and lower ends are fixed to the frame 11 passes through the guide shaft 6 . The other lifting frame 42 has a similar guide block 47 and a screw shaft 52.
are screwed together, and this screw shaft 52 is arranged parallel to the guide shaft 48.

Therefore, when the screw shaft 52 rotates under the driving force of a motor (not shown), the elevating frame 42 moves up and down to a predetermined position so that it can accommodate each magazine 12 and cassette 18.

A pair of upper and lower entrance clamping rollers 82 are pivotally supported in parallel to each other between the elevating frames 42 near their lower ends. These artificial clamping rollers 82 are for receiving the sheet film F taken out from the magazine 12 by the suction cup 136, feeding it in the direction of arrow E, and holding the sheet film F in a curved manner in an approximately semicircular shape. In addition, a pair of intermediate portion nipping rollers 84 and a pair of intermediate portion nipping rollers 86 are pivotally supported in the same way as the artificial nipping rollers 82 corresponding to the intermediate portions of the sheet film F held in a semicircular shape. Furthermore, a pair of outlet nipping rollers 88 are provided for nipping the leading end of the sheet film F held in a semicircular shape. Therefore, when the long sheet film F is held, the rear end of the sheet film F is held by the artificial holding rollers 82, the middle part is held by the intermediate holding rollers 84 and 86, and the leading end is held by the outlet holding rollers 88. That will happen. Further, even when the sheet film F is short in size, the leading end portion is always held by the exit nipping roller 88.

The outlet clamping roller 88 is supported near the tip of a tilting frame 94 which is supported by a shaft 92 on the lifting frame 42 . A first swing link 97 is pivotally supported at the tip of the tilting frame 94 by a pin 96, and the other end of the first swing link 97 is pivotally supported by a pin 98 to a second swing link 99. This second swing link 99 is pivotally supported by a rotating shaft 100 that is connected to the lifting frame 42, and a pulley 102 fixed to this rotating shaft 1100
A part of the endless belt 104 is wrapped around it. The other part of the endless belt 104 is wound around a pulley 108 that is fixed to the output shaft of a motor 106 that is fixed to the lifting frame 42.

Therefore, when the motor 106 rotates, the second swing link 99 rotates together with the rotating shaft 100, and the first swing link 97 receives this rotational force and moves the tilting frame 94 counterclockwise (in the direction of arrow G) as shown in FIG. It is designed to tilt towards. As a result, the sheet film F is moved above the entrance of the cassette 18 with its leading end held by the outlet holding rollers 88, thereby making it easier to insert the sheet film F into the cassette 18.

As shown in FIG. 2, on the outside of the lifting frame 42, there are a plurality of pulleys 114 and an endless timing belt 116 for transmitting the driving force of the motor 112 to the entrance clamping roller 82, the intermediate clamping roller 84, 86, and the exit clamping roller 88. It is used individually.

Next, the operation of this embodiment will be explained.

When the cassette 18 containing the photographed sheet film F is loaded into the sheet film loading bag [10 from the loading opening 10A in the six directions of the arrows, the cassette drive unit 820 presses the cassette 18 toward the open-lid bin 24, so that the lid opens. Plate 18B is the first
．． It is opened as shown in Figure 3.

Next, the suction cup 28 of the ejecting means 26 is inserted into the cassette body 18Δ.
Since the sheet film F inside is sucked and taken out and delivered to the conveyance roller 32, this photographed sheet film F
is sent to the developing device 34 and developed.

Next, a film identification signal (not shown) attached to this cassette 18 is detected by a detection means (not shown), and a sheet film F to be loaded into the cassette is selected. The take-out means 14 and the holding means 16 are moved to the magazine 12 in which the selected sheet film is stored in response to a signal from the detection means. This movement is carried out by the lifting frame 42.
The screw shaft 52 that guides the lift frame 42 and the screw shaft 132 that guides the lift frame 122 rotate under the driving force of a motor (not shown), thereby causing the lift frame 42 and the lift frame 122 to move up and down.

During this movement, the drawer arm 58 of the drawer plate 56 passes through the receiving hole 64 formed on the receiving plate 62 of the magazine 12, so that
The magazine 12 and the ejecting means 14 move relative to each other without interfering with each other.

The ejecting means 14 and the holding means 16 are connected to this particular magazine 12.
When the motor 66 is moved to the side, the motor 66 rotates and the drawer plate 56
is moved in the direction of the arrow. Therefore, the drawer arm 58 engaged with the opening 64 of the magazine 12 is connected to the drawer plate 56.
transmits the moving force to the magazine 12 via the moving table 36,
The magazine 12 is moved to the film take-out position. As the magazine 12 moves, the arm 12D of the slide lid 12C comes into contact with the suction piece 76, so the slide lid 12C moves under the lid plate 12A and the take-out opening 12B is opened.

Here, the motors 146 and 148 of the take-out means 14 are rotated, and the suction cup 136 is pressed against the uppermost sheet film F in the magazine 12. At the same time, negative pressure from a negative pressure source (not shown) is transmitted to the suction cup 136, whereby the vicinity of the leading end of the sheet film F is attracted. Then sucker 136
is raised by the rotation of the motors 146 and 148 and lifted from the take-out opening 12B, and the sheet film F
is inserted between the entrance holding rollers 82. Here motor 1
12 rotates to send out the leading end of the sheet film F in the direction of arrow E, and the supply of negative pressure to the suction cup 136 is stopped. Therefore, the sheet film F passes from the artificial clamping roller 82 to the intermediate clamping rollers 84 and 86, the leading end reaches the intermediate clamping roller 86, and the leading end is curved into an arc with the leading end being clamped by the exit clamping roller 88. is retained. In order to smoothly move the sheet film F between these rollers, it is preferable to provide a guide plate 89 (shown in phantom lines in FIG. 1) inside the elevating frame 42.

When the sheet film F is stored in the holding means 16, the suction cup 136 of the take-out means 14 returns to the reference position again, the motor 66 reverses, and the pull-out arm 58 moves the moving base 36 in the direction of arrow C.
The moving table 36 returns the magazine 12 to the standby position.

At this point, the holding means 16 is raised by the rotation of the screw shaft 520, and the exit clamping roller 88 corresponds to the entrance/exit of the cassette 18, and the lifting of the holding means 16 is stopped.

The rotation of the motor 106 causes the tilting frame 94 to rotate counterclockwise (in the direction of arrow G) as shown in FIG. 1, so that the outlet clamping roller 88 passes over the open-lid bin 24 and approaches the vicinity of the entrance of the cassette 18. This allows the sheet film F
The leading end of the cartridge is securely accommodated in the cassette 18 by the rotation of the outlet nipping roller 88. In this way, the tilting frame 94 brings the outlet holding roller 88 close to the entrance of the cassette 18, so that the opening bin 24 for opening the lid plate 18B of the cassette 18 is placed in front of the cassette 18. The sheet film F can be reliably loaded into the cassette 18 from the holding means 16 even when the holding means 16 is in use.

The sheet film F loaded into the cassette 18 is turned upside down while passing through the holding means 16, so that the sheet film F loaded in the cassette 18 is reversed from the state stored in the magazine 12.

That is, since it is necessary to load the sheet film F into the cassette 18 with the emulsion side facing the lid plate 18B, if the film has an emulsion side on only one side, it is necessary to load the sheet film F into the cassette 18 with the emulsion side facing downward in the magazine 12. It will be accommodated. Therefore, since the suction cup 136 of the take-out means 14 adsorbs the opposite side of the emulsion, even if the film is sensitive, the suction force will not affect the photographic performance.

Note that even when the tilting frame 94 rotates counterclockwise in FIG. A one-way clutch is provided between the entrance clamping roller 82, the intermediate clamping roller 84, 86, and the winding pulley of the timing belt 116 to prevent unnecessary tension from being applied to the sheet film F when it is clamped by the clamping rollers 84, 86. When high-speed rotation is transmitted in the sheet film conveyance direction through the interposition of the sheets 156, it is preferable to allow the sheets to rotate freely.

When the loading of the sheet film F into the cassette 18 is completed, the tilting frame 94 returns to the vertical position again, and the holding means 16 prepares for taking out the next film.
When the sheet film F is to be taken out subsequently from 2, if the take-out means 14 is stopped in correspondence with this magazine 12, the next sheet film F can be taken out quickly. Alternatively, the magazine 12 may be stopped while being placed at the film take-out position.

Since the holding means 16 receives the sheet film F from the inlet holding roller 82 disposed near the lower end, even if the holding means 16 moves to the lowest position when taking out the sheet film F from the lowest magazine 12, it will not be held. The means 16 does not protrude significantly below the lowest magazine 12, so there is no need to increase the overall height of the sheet film loading device 10.

Next, FIG. 4 shows a second embodiment of the present invention. In this embodiment, the tilting frame 94 of the first embodiment is omitted, and the exit conveyance roller 88 is directly supported by the lift frame 42. Therefore, the motor 106 and the like for driving the tilting frame 94 in the embodiment described above are not provided. In addition, the holding means 16 has the lifting frame 42 connected to the shaft 162.
The guide block 46 and the guide block 4 are pivotally supported by the outer bracket 164 at the outer bracket 164.
7 is fixed, and is guided by a guide shaft 48 and a screw shaft 52 to move up and down.

The shaft 162 also has a pin 96 between it and the outer bracket 164.
, a first swing link 97, a bin 98, a second swing link 99, and a motor 106 are interposed, and the motor 10
The holding means 16 is rotated around the shaft 162 by the driving force of 6, and the leading end of the sheet film F held between the exit conveying rollers 88 is brought closer to the cassette 18 as in the previous embodiment. Note that in this embodiment, the exit conveyance roller 88
At the same time, the intermediate detail nip rollers 84, 86 and the inlet nip roller 82 are both rotated about the shaft 92, so there is no need to use the one-way clutch 156 as in the previous embodiment.

Note that the other configurations are the same as those of the first embodiment.

In the above embodiment, the sheet film F is inserted into the holding means 16.
Although the configuration in which the sheet film F is held in a semicircularly curved manner is shown, it is not necessarily necessary that the entire area of the sheet film F be curved, and a portion thereof may have a straight portion.

Further, in the above embodiment, a configuration is shown in which the take-out means 14 and the holding means 16 are moved up and down separately, but they may be connected together and moved up and down.

In the above embodiment, the sheet film loading device 10 is provided with both a means for taking out the sheet film F from the cassette 18 and a loading means. A configuration may be adopted in which only a means for loading the sheet film onto the sheet film 18 is provided.

〔Effect of the invention〕

Since the present invention has the above structure, it has an excellent effect that even when a large number of magazines are provided, there is no need to provide a large number of drive mechanisms for the magazines corresponding to each magazine.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing a sheet film loading device to which the first embodiment of the present invention is applied, Fig. 2 is an exploded perspective view showing the main parts of this embodiment, and Fig. 3 is a cassette and its lid opening. FIG. 4 is a perspective view of a holding device according to a second embodiment of the present invention; FIG. F...Sheet film, 10...Sheet film loading device, 12...Magazine, 14...Ejecting means, 16...Holding means, 18...Cassette, 56...Drawer plate, 58 ...Drawer arm, 64...Receiving opening, 66...Motor.

Claims (1)

[Claims] (1) A plurality of magazines each containing a sheet film and arranged vertically at a predetermined interval, a film take-out means that moves up and down to take out the sheet films in the magazines in correspondence with these magazines, and a film take-out means from this take-out means. holding means for receiving and feeding the magazines into the cassette, and guide means for allowing each magazine to be pulled out and moved from a standby position where it does not interfere with the film ejection means to a film ejection position where it approaches the film ejection means and allows film ejection. One of the member and the engagement receiving member is provided to this film ejecting means, and the other is provided to each magazine, so that when the magazine is in the standby position and the ejecting means moves up and down, it is in a disengaged state, and when the ejecting means moves up and down, it is in a disengaged state. The present invention includes a drawer engaging means that is in an engaged state, and a driving means that drives an engaging member or an engagement receiving member provided on the film ejecting means to move the magazine from a standby position to a film ejecting position. Characteristic sheet film loading device.