JPS5999432A - X-ray photographing device - Google Patents

Abstract

PURPOSE:To reduce the complexity of an equipment and to reduce the costs of assembly, adjustment, parts, services, etc., by providing a film detector at the shared part between a film feed part and a film storage path and then decreasing the number of film detectors. CONSTITUTION:The film detector 150 is provided in a lead-in path 100 as the shared part between the film feed path and storage path. When a film is taken out of a supply magazine 52 for the first time, a gripper 61d is drawn in to a position 61 and the film detector 150 detects the film. In his state, no film is normally present. Then, the clipper 61 is moved out to a position 6b to receive the film sucked to a suction member 57' and returns to the position 61; if the film detector 150 displays film presence, the operation is normal. Thus, the film detector 150 decides whether film feeding operation, film moving-back operation, film storing operation, etc., are normal or abnormal.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention feeds unX-ray film from a supply magazine to a pressure plate of an imaging stage, and performs Xl1iJ! An X-ray film imaging device having a film changer that removes the X-ray film from the pressure plate and stores it in a receive magazine after imaging, especially by performing film detection.
The present invention relates to an X-ray film photographing apparatus that determines whether feeding, unloading, and storing operations are normal or abnormal, and controls a film changer based on the determined results.

Conventional X-ray film changer, film feed path,
Separate film detectors were installed on the pressure plate, which is the shooting stage, and on the film storage path, so there were a large number of detectors, and parts had to be purchased.

This method has disadvantages in that it requires more assembly man-hours, requires more adjustment, and requires more adjustment time during assembly and service.

There is an inconvenience in that if a feeding or storage operation fails, it must be manually restarted.

The present invention compensates for the drawbacks of the conventional examples described above, and by integrating the film detector into one, the complexity of the equipment can be reduced, and the cost of assembly, adjustment, nine parts, service, etc. can be reduced. The present invention provides a significant effect since adjustment of a film detector, which is characterized by providing a film photographing device, is particularly troublesome.

Furthermore, in the event of a failure in the feeding or storage operation, the effort can be saved by automatically redoing the operation.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to a detailed description of the present invention, an outline of a film feeding system for an X-ray film photographing apparatus will be described below. In FIG. 1, sheet films 54, 55 of different sizes are stored in supply magazines 51, 52, and at this time, the clipper 6]d is at the position, the suction cups 57, 57 are at the solid line in the diagram, and the guide plate 67 is at two points. Chain line position, guide plate 68.69
is located at the solid line. When a feeding switch (not shown) is pressed, the guide plate 69 moves to the position indicated by the two-dot chain line, while the magazines 51, 52, 53 are opened by interlocking means (not shown).

Next, the drum 59 rotates counterclockwise to transfer the sheet 60
is rewound.

Subsequently, the drum 59 rotates clockwise to transfer the transfer sheet 60.
is fed out, and the clipper 61 moves along the path formed by the guide plates 68 and 69 to the position indicated by the two-dot chain line 61pL. Next, the suction cups 57 on the side of the first size supply magazine 51 move sequentially along the arrows in the figure.

At this time, the opening/closing member 62 is pushing the clipper 61a,
The tip of the clipper is open. The suction cup 57 is sucked by a pump (not shown), picks up a sheet of film, returns to the position indicated by the solid line, and inserts the leading end of the film between the open clippers. At this point, the opening/closing member 62 is separated from the clipper 61a, and the tip of the clipper pinches the film to close it.

Next, the suction of the suction cup 57 is stopped, the film is separated from the suction cup 57, and at the same time, the suction cup 57 moves in a direction away from the film. In this way, the clipper 61 holds one film, but then the drum 59 rotates counterclockwise to wind up the transfer sheet 60, and the clipper moves to the position indicated by the solid line in the -rt diagram, where the film is sandwiched. , draws the film into the drawing path 100. Subsequently, the guide plate 67 moves to the position shown by the solid line, and then, when the drum 59 rotates in the opposite direction, that is, clockwise, the clipper 61 pushes the film and moves to the position shown by the two-dot chain line 61d.

The film thus enters between the intensifying screens 73, 74 and maintains the top edge of the film in a defined position.

The lever 82 then rotates counterclockwise, causing the intensifying screen 73 .
74 with a film in between.

At this time, the clipper 61d is holding the film.

Next, X-rays are irradiated onto the subject to take an image, and when the image is taken, the lever 82 rotates clockwise and the intensifying screen 73.
Open 74. Next is Dora! A59 rotates counterclockwise, and the clipper 61d moves to the position indicated by the solid line in the figure while holding the film, and draws the film into the drawing path 100.

After the information is photographed by the recording card photographing lens 85, the guide plate 67 moves to the position indicated by the two-dot chain line, the guide plates 68 and 69 move to the position indicated by the solid line in the figure, the drum 59 rotates clockwise, and the clipper 61 pushes the film and moves it to the position indicated by the two-dot chain line 61c.

Next, the opening/closing member 62 pushes the catching piece of the clipper 01c,
The tip of the clipper opens and the film is placed in the receive magazine 53.
fall inside.

Next, the opening/closing member 62 is separated from the clipper 61c, the drum 59 rotates counterclockwise, the clipper 61 moves to the position indicated by the solid line, the drum 59 further rotates clockwise, and the clipper 61 stops at the position 61d. - Shooting ends.

Now, an embodiment of the present invention relating to the determination of normality or abnormality of each of the above-mentioned film feeding, removal, and storage operations will be described below.

The film detector 150 according to the present invention is provided in the lead-in path 10f+, which is a common part of the film feeding path and the storage path.

First, the feeding operation when taking out a film from the supply magazine 52 will be described. First, Clipper 6
1d is pulled to the position 6] and the film is detected by the film detector 150.

In this state, since a film is to be brought from the supply magazine 52, it is normal if there is no film, and it is abnormal if there is film.

Next, let out the clipper 61 and move it to the position 61b,
The film sucked by the suction cup 57 is picked up, the clipper returns to position 610 14, and the film is detected by the film detector 150. The presence of film is normal here,
If there is no film, it is considered that the film could not be retrieved for some reason, which is an abnormality.

Subsequently, the clipper 61 is moved to the position 61d, and the sheet film that has not yet been photographed with X-rays is sandwiched between the intensifying screens, and when the X-ray photographing is completed, the film ejecting operation begins.

The clipper is moved from position 61 d to position 61 , and the film detector 150 detects the film. Since this is immediately after X-ray photography, the presence of film is normal, and the absence of film is abnormal.

Next, in the storage operation, the clipper 61 is moved to the position 61c, and the X-rayed sheet film is transferred to the receive magazine 53.
Store it in. Thereafter, the clipper 61c is returned to the position 61, and the film detector 150 detects the film.

In other words, it is normal if there is no film, and if there is film, it is considered abnormal because it could not be stored in the receive magazine for some reason.

Finally, the clipper 61 moves to the position 61d and one operation is completed.

In either case, the clipper is 61d when an abnormality is detected.
, the feeding operation, storage operation, and photographing operation are prohibited, and the operator is notified of the occurrence and type of abnormality by flashing a lamp (not shown).

FIG. 2 shows an embodiment of the operation panel of the X-ray film photographing apparatus according to the present invention. 201 is a warning display for card insertion for patient number transfer, 202 is a warning display that the magazine storage door is open, and 203 is an unprepared state of the automatic processor when the film changer and automatic processor are combined. 204 is a warning display indicating that the storage magazine is full or the storage magazine is not fully loaded, 2 (+5 is a state in which the film has been fed to the pressure plate and the film changer is ready for X-ray photography) 206 is a switch for switching between a continuous operation in which the next unexposed film is fed after removing the exposed film from the pressure plate after X-ray imaging, or a single operation in which the unexposed film is not fed. Display, 207 indicates whether to set the film storage destination to the storage magazine.
208 is a switch and display to switch to an automatic developing machine, 208 is a switch and display to remove the film on the pressure plate without taking an X-ray image, 209 is a switch and display to open the door mentioned above, 210 is a 14x14 size film This number is stored in a memory, which will be described later, using a 3-digit remaining number film indicator such as an LED that displays the number of remaining sheets in the supply magazine. 211 is a switch for pre-memorizing the tens and hundreds digits of the number of remaining film display 210, and 212 is a switch for pre-memorizing the minus digit of the number of remaining film display 210. Switch and display for feeding from magazine to pressure plate, 214 is 14
3-digit LED display to indicate the number of remaining sheets in the 'X 17 size subry magazine;
The numerical values displayed in the same way as 0 are backed up in memory.
The switches 211 and 212 operate in the same manner as the switches 211 and 212, and can store arbitrarily selected values in advance.

In this embodiment, 213 and 217 indicate the feeding operation, and 2
03 and 204 are displayed as both a withdrawal operation and a storage operation, and are a feeding operation and a withdrawal operation.

Of course, it is possible to provide each indicator corresponding to the storage operation, and to judge whether each operation is normal or abnormal based on the presence or absence of blinking of each indicator.

FIG. 3 is a block diagram of one embodiment of an apparatus for operating the apparatus of FIG. 2, and only the parts related to the present invention are shown. 301 is an MPU such as a microcomputer, 30
2 is a ROM, 303 is a RAM, 304 and 305 are PIAs that are ferrule interface adapters, and 3
04 is for input, and 305 is for output. 306-3
10 is an inverter buffer, 311 to 314 are inverter drivers, 315 to 319 are resistors, and 315 to 318
One side is connected to the power supply circuit. 320 to 323 are switches, 320 is a switch to start a series of operations for X-ray photography and storage of exposed film, and 321 is a feeding switch 213.
To.

322 correspond to the feed switches 217, respectively. The switches 320 to 323 will be described later: (24).

325 are connected to adapters 304.325 through inverter buffers 306-310, respectively. MPU
301, each of which is identified by a specific address. 326 to 329 are lamp displays, 326
is displayed on the warning display 203, 327 is displayed on the warning display 204, and 32 is displayed on the warning display 204.
8 is the feed switch 213, 329 is the feed switch 21
7 respectively. 324 is an infrared LED for photosensor
, 325 are phototransistors, which constitute the film detector 150. Infrared LED for photo sensor
The anode of the phototransistor 324 and the collector of the phototransistor 325 are connected to a power supply circuit.
25, and is designed to receive infrared L for photosensors.
By inserting a film between the ED 324 and the phototransistor 325, infrared rays are blocked, and the presence or absence of the film is detected <6.

326 to 329 are MPU301 to adapter 3 (
15 and L7, each of which is assigned a specific address and identified. 351 and 352 represent areas in the RAM 3'03; 351 is a flag for storing the determination result as to whether or not operations such as feeding, leaving the 44th shadow stage, and storing were performed normally as a result of executing the program; 352 represents a counter that stores the number of times the program has been executed.0 Figures 4 to 6 are flowcharts of one embodiment of a program that implements the present invention, with Figure 4 being a main routine and Figure 5 being a film. FIG. 6 shows the interruption routine for the feeding operation. FIG. 6 shows the interruption routine for the X-ray imaging operation. Note that these figures only show parts related to the present invention, and other parts are omitted. The flow is briefly explained below.0 (401) Start the program.

(402) It is determined based on the flag 351 whether or not the feeding operation was performed normally.

(403) Flag 35 indicates whether the feeding operation has failed.
It is determined by 1.

(404) It is determined by the flag 351 whether or not the photographed film storage operation after X-ray photography has been performed normally.

(405) It is determined based on the flag 351 whether or not the photographed film removal operation has failed.

(406) It is determined based on the flag 351 whether or not the photographed film storage operation has failed.

(407) If the feeding operation is normal, ready display 2
05 is turned on, X-ray photography is permitted, and the process returns to 402.

(4(ls) If the feeding operation fails, depending on the film size C, the feeding display 2], 3 or 217 blinks (returns to -1402).

(409) Storage! If the operation in step 1 is normal, the feeding operation is permitted and the process returns to step 4 (step 12).

(410) If the exit operation fails, indicator lamp 2
03 flashes and returns to 402.

(4, i I ) If the storing operation fails, the display lamp 204 is blinked and the process returns to 402.

A switch with an indicator lamp 2] 3 for feeding unshot film when there is no film on the shooting stage.
When you press , the interrupt (function) is programmed, and the main routine shown in Figure 4 moves to the film feeding operation interrupt routine shown in Figure 5, and the film is transferred from the
The image is fed to the darkest stage with the following operations.

(501) Program start.

(502) Wind up the transfer sheet 60 and use the clipper 61
．． Move d to position 61.

(5(13) Suction the film, feed out the transfer sheet 60, move the clipper to position 61-b, grab the film, and wind up the transfer sheet 60.

(504) The presence or absence of a film is determined by the film detector 150. If there is no film, jump to 5()8.

(505) If there is film, the value F of flag 351
Set to 1.

(506) Pay out the transfer sheet and move the chestnut to 61
．． Move the film to position d, send the film to the ]4-n shadow stage, and close the pressure plate.

(507) Return to the part containing “-1, 1” in the main routine 0 (508) If there is no film at 504, flag 3
Set the value F of 51 to 2.

(509) If there is no film in 504, feed,
Line photography and storage operations are prohibited.

In this way, the film feed φj1 operation is performed, and the process returns to the main routine, and the ready display is turned on to indicate that preparation for X-ray photography is complete, and the start of the interrupt routine for the X-ray photography operation shown in FIG. 6 is awaited.

When the film is on the exposure stage and the ready indicator is lit, if switch 320 is pressed to perform X-ray exposure or storage, the interrupt function causes the program to switch to the fourth stage.
The main routine shown in the figure moves to an interrupt routine for X-ray imaging and storage operations shown in FIG. 6, where X-ray imaging is performed and the film is stored from the imaging stage into the receive magazine with the following operations.

(60], ) Program start.

(6(12) Perform X pure photography, open the pressure plate, roll up the transfer sheet, and move the clipper to position 61d or 61.

(6(13) The presence or absence of film is determined by the film detector 1-50. If there is no film, the process jumps to 609.

(604) If there is film, feed out the transfer sheet, move the clipper to position 61c, open the clipper,
Drop the film into the receive magazine, wind up the transfer sheet, and move the clipper to position 61.

(605) The presence or absence of a film is determined by the film detector 150. If you have film, jump to 611.

(6(16) If there is no film, set the value F of the flag 351 to 3.

(607) Pay out the transfer sheet and move the clipper to 61d.
Move to position.

(608) Return to main routine interrupt point 0 (609) If there is no film in 603, flag 3 is set.
Set the value F of 51 to 4.

(610) If there is no film in 603, feed,
Line photography and storage operations are prohibited.

(611) If there is a film at 605, 7 lags 35
Set the value F of 1 to 5.

(612) If there is film at 605, feeding, X-ray photography, and storage operations are prohibited.

In this way, X-ray imaging and storage operations are performed, and the process returns to the main routine.

FIG. 7 is a flowchart of the interrupt routine for door opening operation, which will be briefly explained below.

(701) Program start.

(7 (12) Open the magazine room door.

(703) The value F of the flag 351 is set to 3, and is initialized when F is a value other than 3 due to an abnormality in the feeding, withdrawal, or storage operation.

(704) If there is an abnormality in the feeding, evacuation, or storage operation and the operation is prohibited, the operation prohibition is canceled.

(705) Return to main routine interrupt point 0 In this way, while opening the magazine chamber door,
The flag value is initialized, the prohibition of operation is canceled, the inside of the magazine chamber is inspected, and preparations for operating the film changer are started again.

Here, in the above embodiment, a case will be described in which when an abnormality is detected at the position of the clipper 61, a failed operation is retried.

During the feeding operation, the clipper 61d is first wound around the clipper 61. Next, move the clipper 61 to 61b, take out the film from the supply magazine 52, and move the clipper 61b to 61b.
1 and perform film detection.

If there is no film here, it is a feeding error, but again, move the clipper 61 to 61b, grab the film taken out from the supply magazine 52, reel in the transport sheet, perform film detection, feed the transport sheet, and press the clipper. It stops at position 61d. If there is no film at this time,
After the transfer sheet is stopped, feeding, storage, and photographing operations are prohibited.
A blinking lamp (not shown) indicates an abnormality.

As described above, when retrying a failed operation, the number of retries is one.

8 and 9 are flowcharts of programs according to other embodiments of the present invention, and FIG. 8 is a partially modified version of FIG.
A counter 352 provided inside the AM 303 is used to retry the feeding operation only once if the feeding operation fails, thereby further increasing the reliability of the device and simplifying the operation. A brief explanation is given below.

(801) The value C of the counter 352 is reset to zero.

(8(12) Add 1 to the value C of the counter 352.

(8(+3) Determine whether the value C of the counter 352 is 1 or 2. If it is 1, return to 5 [) 3 1 [■; If 2, proceed to 508.

FIG. 9 partially changes FIG. 6 and uses the counter 352 in the same way as in FIG.
) will be retried only once.

(90], ) The value C of the counter 352 is reset to zero.

(902) Add 1 to the value C of the counter 352.

(903) Determine whether the value C of the counter 352 is 2, and if it is 1, return to before 604, and if it is 2, go back to 611
Proceed to. In this example, the number of retries is 1, but 2
It is also possible to do it more than once.

As described above, the present invention has the effects of reducing the number of film detectors, lowering the cost of purchasing parts, simplifying the structure of the X-ray imaging apparatus, and facilitating assembly.

Further, since reducing the number of film detectors involves reducing the number of adjustment points, there is an effect of reducing adjustment costs and service costs.

Furthermore, since the type of abnormality can be immediately determined, it is easy to take countermeasures, and when an abnormality occurs, the next operation is prohibited to prevent the situation from worsening, and the transfer sheet and clipper are returned to the pressure plate after the abnormality occurs. , removing the film, and storing the film can be done simply by removing the front cover, which has the effect of making maintenance easier.

It also improves operational reliability and saves time and effort.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a film feeding system of an X-ray film imaging device, FIG. 2 is a front view of an operation panel using the present invention, FIG. 3 is a block circuit diagram of an embodiment of the present invention, and FIG. 4 3 is a flowchart of the main routine of the program that operates the circuit, FIG. 5 is a flowchart of the interrupt routine for film feeding operations, and FIG. 6 is a flowchart for the interrupt routine for X-ray photography and storage operations. , FIG. 7 is a flowchart of the door opening operation interrupt routine, and FIG.
The figure is a flowchart showing another embodiment of the present invention in which a part of the interrupt routine in Fig. 5 is changed, and Fig. 9 is a flowchart in which a part of the interrupt routine in Fig. 6 is changed in another embodiment of the present invention. Flowchart diagram. In the figure, 54.55i1 sheet film, 57 is a suction cup, 59
60 is a drum, 60 is a transfer sheet, 61 is a clipper, 67.
68 and 69 are guide plates, 73 and 74 are intensifying screens, 85 is a recording card photographing lens, 100 is a lead-in path, and 150 is a film detector. Applicant Canon Co., Ltd. Chi5 Kasumi = 285

Claims (7)

[Claims] (1) Film feeding in an X-ray film imaging device in which the XIN unexposed upper film is fed from the supply magazine to the pressure plate, and after XS exposure, the exposed sheet film is removed from the pressure plate and stored in the receive magazine. An X-ray film imaging device characterized in that a film detector is provided in a shared area between the path and the film storage path. (2) The X-ray film photographing apparatus according to claim 1, wherein the film detector detects the presence or absence of film and determines whether film feeding operation, film withdrawal operation, film removal operation, and storage operation are normal or abnormal. (3) The X-ray film photographing apparatus according to claim 2, which retries the film feeding operation, the film withdrawal operation, and the film storage operation upon determination of an abnormality. (4) The X-ray film photographing apparatus according to claim 2, wherein film feeding operation, film withdrawal operation, and film storage operation are prohibited upon determination of abnormality. (5) Xi according to claim 4, wherein the prohibition of the operation is canceled when the operation of opening the door for mounting the supply magazine and the receive magazine is performed.
! i! Film photography equipment. (6) The X-ray film imaging apparatus according to claim 2, wherein the occurrence and type of abnormality are displayed on corresponding indicators based on abnormality determination. (7) The X-ray film imaging apparatus according to claim 2, wherein a series of abnormality determinations are made under program control.