JPH0930671A - Payoff device for x-ray film, etc. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate skew and jam by furnishing a moving arm elevating/ sinking means and a push-out means which are capable of being operated individually, eliminating left-right dislocation of supporting arms. and making sure the biting by feed rolls. SOLUTION: A moving arm 5 equipped with a suction cup 4 is installed on supporting arms 7 and together therewith elevates and sinks through the action of a cam 11. Because the left and right supporting arms 7 are formed in a single piece, they are free from risk of dislocation to the left or right. When a film F is attached by suction, the cam 11 is rotated by a motor from the lower limit position to the upper, and the supporting arms 7 are lifted. When the moving arm 5 rises to reach the upper limit, a lever 16 rotates in the condition that the cam 11 is held at the upper limit level, and comes in contact with a guide pin 5d to be engaged thereby to generate forward pushing and advancing. Accordingly the moving arm 5 is pushed forward against the energizing force of a spring 10, and the film F attracted by the suction cup 4 is pushed out to the position to be bitten by feed rolls 17, 18. Thus the film feed is started.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for feeding out X-ray film or the like one by one, and more specifically, a device for feeding a photographed film to an automatic developing processor for medical X-ray film,
Alternatively, it is used for feeding out the unexposed film for other photographing one by one.

[0002]

2. Description of the Related Art In an apparatus for automatically developing a medical X-ray film or other films, a film is sucked onto a suction cup and moved while being lifted as a device for feeding a photographed film. A device for feeding so as to feed the feed rolls one by one has been generally known from the past.

[0003]

As shown in FIG. 4, such a conventional film feeding device has a moving arm 41 having a suction cup 40 for sucking the film F from inside a tray 49,
The moving arm 41 is composed of a supporting arm 43 which is supported by a cam 42 so as to move up and down. The supporting arm 41 has a guide pin 46 linearly formed in a groove 45 formed in a body side plate 44 and bent in a V shape. By being guided so as to move up and down, the angle of the suction cup is changed by entering into the bent portion 45a of the groove, whereby the lifted film is gripped by the feed roll 47.48. . That is, since the film F is lifted (raised) and advanced (supplied) at the same time by the V-shaped groove 45 formed in the main body side plate 44, the following problems occur.

If the movement of the movable arm in the guide grooves on the left and right of the main body is slightly deviated from the left or right due to the lateral displacement of the side plate or the angular displacement of the supporting arm attached to the support shaft, the groove is moved to the bending position. As a result, the position of the leading edge of the moving film shifts to the left and right in the height and the moving position, and as a result, the gripping into the feed roll becomes inaccurate, causing diagonal feeding and jamming. Further, if the deviation of entry into the bent portion becomes large, the moving arm may be twisted left and right and may stop in the groove.

The lower end of the support arm that supports the moving arm is
The pin on the disk that is rotated by the moving motor in the guide groove of the support arm pushes down the guide groove and reaches the lower limit. At this time, the remaining film is based on one sheet, but when there are many remaining sheets, the suction cup pushes the compression spring between the suction cup and the moving arm to stop it, and only the moving arm descends to the lower limit. Further, the compression spring is formed on the outer circumference of the intake pipe, has a suction cup in the lower part, and has a gap in the upper part so that it can slide with the intake pipe of the moving arm. However, since the suction pipe is long and there is a gap between it and the moving arm, the tip position of the adsorbed film wobbles forward, backward, leftward and rightward, and the gripping into the feed roll becomes inaccurate.

Since the load for bending the inside of the guide grooves on the left and right of the main body is added to the load for raising the moving arm by the supporting arm, the load on the moving motor becomes large, and the load of the moving piece in the guide groove is increased. Greater wear.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to eliminate the displacement of the support arm from left to right and to accurately grip the feed roll. It is therefore an object of the present invention to provide a feeding device for an X-ray film or the like, which can always feed a constant and reliable film by eliminating oblique feeding and jam, and which has a simple structure and is advantageous in terms of cost.

[0008]

In order to achieve the above object, an X-ray film feeding apparatus according to the present invention is an apparatus for feeding X-ray films and the like one by one, and is provided with a suction cup for adsorbing the film. It comprises an arm, means for raising and lowering the moving arm, and means for pushing out in the film advancing direction, and the moving arm raising and lowering means and the pushing means are individually operated.

Further, in the apparatus for feeding out X-ray films or the like one by one, the means for raising and lowering the moving arm provided with the suction cup for adsorbing the film and the means for pushing out in the film advancing direction are individually operated. Deployed on the support arm that supported to move the moving arm of the
Further, the movable arm is configured to be pushed by a lever coaxial with the cam so as to move along the guide groove of the support arm.

[0010]

An embodiment will be described with reference to the drawings.

The tray 1 for accommodating the film F is formed between the left and right side plates 2.3 of the main body, and one or more or a large number (usually about 50) of the film F are accommodated in the tray 1 at the top. Are taken out one by one by suction cups 4. Tray 1
Has a light-shielding cover (not shown).

The movable arm 5 is composed of left and right side pieces 5a and a horizontal plate piece 5b extending horizontally between the end portions thereof, and the suction cup 4 is attached downward to the horizontal plate piece 5b. The suction cup 4 is connected to an air pump (not shown) through an intake pipe 6.

The support arm 7 is composed of a pair of left and right parts so as to be pivotally supported by a support shaft 8 on the main body side plate 2.3, and a guide groove 9 is provided in the left and right case support arm 7 along the guide groove 9. The mobile arm 5 is arranged so as to move back and forth.

The movable arm 5 includes guide pins 5c. 5d, the guide pin 5c. By fitting 5d in the guide groove 9, the movable arm 5 is supported and the movement in the front-back direction is guided. A spring 10 is provided between the moving arm 5 and the supporting arm 7.
The traction elasticity is provided between the two by providing. Spring 10
One end 10a is locked to the rear edge 7a of the support arm 7, and the other end 10b is locked to the guide pin 5d.

The support arm 7 is supported by a cam 11, and
Drive it to move up and down. The two cams 11 are symmetrically attached to one common shaft 12,
The shaft 12 is rotated by a moving motor 13 via a gear 14.15. A moving lever 16 for moving the moving arm 5 is provided coaxially with the cam 11. The movable lever 16 corresponds to the rear guide pin 5d provided on the side piece 5a of the movable arm 5, and the guide pin 5d is pushed each time the movable lever 16 rotates.

A pair of feed rolls 17.18 are provided above the front of the tray 1. This feed roll 17.
18 is driven by a drive motor 19 via a gear 20.21. In FIG. 1 and FIG. 2, reference numeral 22 is a film separation claw.

[0017]

When the moving motor 13 is driven by a command (signal), the left and right cams 11 simultaneously rotate from the upper limit to the lower limit via the gear 14.15.

The support arm 7 is supported by the cam 11 at its upper limit, but follows the movement of the cam and descends by its own weight. The left and right support arms 7 are individually supported by the cams 11, but the left and right support arms 7 do not shift in position because they are integral.

The movable arm 5 having the suction cup 4 is the above-mentioned support arm 7.
Since it is attached to, the cam 11 moves up and down together with the support arm 7.

In order to take out the uppermost film F stored in the tray 1, when the cam 11 moves from the upper limit to the lower limit,
The support arm 7 descends around the support shaft 8 as a fulcrum, and at the same time, the suction cup 4 descends together with the moving arm 5. Sucker 4 is film F on the tray
The moving arm 5 stops descending when reaching the
Stops at the lower limit as it is.

The suction cup 4, which has reached the film F, sucks one film because air is being sucked through the suction pipe 6 by the air pump. When there is no film in the tray 1, there is a hole at the bottom of the tray and it is not adsorbed.

When the film F is adsorbed, the moving cam 13 is rotated again to rotate the moving cam 11 from the lower limit position to the upper limit position to push up and raise the support arm 7.

While rising, the tip of the film F comes into contact with the separation claw 22. When two or more films are lifted due to the contact of the sacking claws 22, the second and subsequent films are scraped off.

When the moving arm 5 further rises and reaches the upper limit, the moving lever 16 rotates to engage the guide pin 5d and push forward while the cam 11 maintains the upper limit height. Therefore, the moving arm 5 is pushed forward against the bias of the spring 10, so that the film F attracted to the suction cup 4
Is extruded to the point where it is gripped by the feed roll 17.18.

The feed roll 17.18 has been rotated by the drive motor 19 at this time or before, and therefore,
The film F is gripped by the feed roll 17.18 and starts feeding.

Simultaneously with the start of film feeding, the air pump is stopped to release the film adsorbed on the suction cup 4, and the film is fed by the feed roll 17.18 to the processing machine of the next process.

This series of operations is repeated until the remaining number of films runs out, and the films are automatically fed.

[0028]

Since the present invention is constructed as described above, it has the following effects.

(1) As for the rising position of the film, since the supporting arm for supporting the moving arm sucking the film by the suction cup is lifted by the left and right cams, there is no height deviation. Further, since the moving arm is pushed out along the supporting arm in the film advancing direction after the ascent of the film is almost completed, the film advances left and right evenly while maintaining a constant height. Therefore, the gripping position on the feed roll is always constant, and reliable feeding can be performed without oblique feeding or jamming. Of course, since the twisting does not occur, the moving arm does not stop unintentionally.

(2) When the support arm for supporting the moving arm descends, the cam supporting the supporting arm on the lower side descends at the angle of the supporting arm when the lower limit position is reached by the moving motor. Since the support arm also stops, the suction cup portion can be easily fixed to the support arm. Therefore, long intake pipes and compression springs are not necessary. Since the movable arm may be fixed between the suction cup and the intake pipe, the position of the suction cup does not wobble, and since the tip position of the adsorbed film is accurate, the gripping into the feed roll is also ensured. Moreover, the structure is simple, the size can be reduced, the cost and cost are low, and the practicability is high.

(3) Since the moving arm is moved in the film advancing direction after the ascent is almost completed, both loads do not overlap, and the load on the moving motor is small. Moreover, since the moving arm moves straight and there is no resistance such as being applied to the bent portion, the moving arm is smoothly moved and the load and wear on the guide portion are small.

[Brief description of drawings]

FIG. 1 is a plan view of an X-ray film feeding device showing an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a side view of the above, showing a state in which a moving arm is lifted by adsorbing a film.

FIG. 4 is a vertical sectional side view of a conventional X-ray film feeding device.

[Explanation of symbols]

 1 Tray 2.3 Main body side plate 4 Sucker 5 Moving arm 6 Intake pipe 7 Support arm 8 Support shaft 9 Guide groove 10 Spring 11 Cam 12 Shaft 13 Moving motor 14.15.0.221 Gear 16 Moving lever 17.18 Feed roll 19 Drive motor

Claims (2)

[Claims] 1. An apparatus for feeding X-ray film or the like one by one, and a moving arm having a suction cup for adsorbing the film,
The moving arm raising and lowering means and the pushing means are separately operated, and the moving arm raising and lowering means and the pushing means are individually operated.
Feeding device for wire film. 2. A device for feeding X-ray film or the like one by one, wherein the means for moving up and down a moving arm having a suction cup for sucking the film and the means for pushing in the film advancing direction are individually operated. The movable arm of the cam is arranged on a support arm that is supported so as to move up and down by a cam, and the movable arm is pushed by a lever coaxial with the cam so as to move along a guide groove of the support arm. A feeding device for an X-ray film and the like.