JPH04109755U - Adhering device for sheet photosensitive material - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent damage to the back plate by smoothly separating the front plate and the back plate when the close contact between the front plate and the back plate is released from the close contact device that holds the sheet-like photosensitive material in close contact with each other. [Structure] The contact device 26 is provided with a front plate 8 and a back plate 9 facing each other, and a first link 15a connected to one edge of the back plate 9 and a motor 22 is provided.
A drive mechanism 23 is provided. Further, a second drive mechanism 24 having the same function is connected to another edge portion opposite to the above-mentioned edge portion. Each motor 2 of the first and second drive mechanisms 23 and 24
2, 22a are rotated to move the back plate 9 via each pressing link 15a, 15b to hold the sheet-like photosensitive material in close contact between the back plate 9 and front plate 8, and each motor 22, 22a is reversed to bring them into close contact. is canceled. When releasing this close contact, each motor 22,2
2a is driven at a predetermined time lag at the start of operation so as to release the contact from each peripheral portion of the back plate 9.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention uses a front plate and a back plate to adhere the sheet-like photosensitive material uniformly over the entire surface. The present invention relates to a drive means for moving a back plate of a close contact device that holds the device.

0002

[Conventional technology]

Close contact device for sheet-like objects with X-ray film used in X-ray imaging equipment This will be explained using a device as an example.

0003 In recent X-ray imaging devices, a large number of sheets are stored in the film changer installed in the device. Load a magazine containing X-ray films and shoot each X-ray film one by one. Transport the photographed X-ray film to the stage and connect it to the film changer. Either transport it to an automatic developing machine and develop it, or store it in a receive magazine. I plan to develop it later. And the above to get good image quality when shooting The X-ray film is placed flat between the front plate and back plate that make up the photographing stage. The entire surface is held uniformly in close contact with the entire surface by eliminating air spaces to maintain its surface properties. stop As shown in FIG. A back plate 9 facing the front plate 8 and rotatably and slidably opens and closes the top plate 8 is provided. Intensifying screens 8a and 9a are attached to the opposing surfaces of the two plates 8 and 9, respectively. Ru. Conventionally, when photographing, the X-ray beam is placed between the front plate 8 and the back plate 9. The drive mechanism that tightly clamps the frame 6 and separates the plates 8 and 9 after photographing is as follows. It is composed of As shown in the figure, an appropriate A crank circle is provided with a motor 32 at intervals and is fitted onto the main shaft of the motor 32. One end is rotatably connected to a connecting pin 13a installed on the plate 13 surface eccentrically with respect to the main shaft. a bracket that is integrally attached to the other end of the pressing link 15 and the center of the back plate 9; Driven by a press link 15 rotatably connected to the other end of the cut 11 by a connecting pin 14 A mechanism 18 is configured. Then, the connecting pin installed in the crank disc 13 The eccentricity between the shaft 13a and the main shaft of the motor 32 is the operating stroke of the press link 15. It becomes. FIG. 5 shows the close contact state of the X-ray film 6.

0004 Then, the motor 32 rotates and the pressing link 15 is pushed through the pin 13a. The back plate 9 is rotated and the opposing back plate 9 is Move the inserted X-ray film 6 to the intensifying screen 8a side of the front plate 8 and move it forward. The two intensifying screens 8a and 9a are brought into close contact uniformly over the entire surface with a predetermined pressing force. And said When the X-ray film 6 is irradiated with X-rays and the photographing is completed, the motor 32 rotates in the reverse direction. Then, the back plate 9 separates from the front plate 8 via the press link 17 and is crimped. is released and the photographed X-ray film 6 is taken out and conveyed to the next process. The sea urchin is turning.

[0005] Note that technical means related to these contact devices have already been disclosed in Japanese Patent Application Laid-Open No. 59-151148 and It is well known for issues such as No. 58-55922.

[0006]

[Problem that the idea aims to solve]

However, the X sandwiched between the front plate 8 and the back plate 9 Ray film 6 is in close contact with the entire surface with no air space, so when the close contact is released, the A great force is required to separate the back plate 9.

[0007] As in the conventional method, a tensile force is applied to the center of the back plate 9 to pull it apart. Then, since there is no inflow of air from the surrounding area, the contact between the back plate 9 and the mounting plate 11 is reduced. Concentrated loads are applied to the joints, often causing the back plate 9 to break and cause malfunctions. Also, if air is momentarily and suddenly introduced during the process of separating the back plate 9, Impact force acts on the motor 32 and the press link 15 system, causing wear and tear. It was the cause.

[0008] This invention solves these problems and allows the X-ray film to be sandwiched between the sheets in close contact with each other. The front plate and the back plate are smoothly separated from each other using a normal torque motor. The object of the present invention is to provide a device for adhering sheet-like photosensitive materials that can be pressed together.

[0009]

[Means to solve the problem]

This objective is achieved by either of the following means (a) or (b).

0010 (a) It has a fixed front plate and a movable back plate that face each other so as to be openable and closable. In a contact device that holds a sheet of photosensitive material between both plates, the front plate and the band are a first drive for moving the position of the back plate so as to be able to approach and separate the vicinity of one edge from the back plate; A first means for moving the position of the back plate so that the moving means and the vicinity of the edge opposite thereto can be brought into contact with and separated from each other. When releasing the close contact of the close contact device having two driving means, the first and second driving means A densely packed sheet-like photosensitive material characterized by providing a time difference between the start of operation of the means. mounting device.

[0011] (b) having a fixed front plate and a movable back plate facing each other so as to be openable and closable; In a close contact device that holds a sheet of photosensitive material between plates, in the back position A drive that moves the position of the back plate so as to be able to approach and separate from the front plate near the center part. and an air injection means facing one surface of the outer periphery where the two plates are joined. When the device is released from close contact, the air injection means is activated at the same time as the driving means starts to operate. A device for adhering a sheet-like photosensitive material, which is characterized by the following:

0012

【Example】

One embodiment of the present invention is shown in FIG. A side view showing an auxiliary means for separating the front plate and back plate in FIG. A side sectional view showing the configuration of the lume changer and a schematic diagram showing the configuration of the X-ray imaging device in FIG. This will be explained using figures. However, the present invention is not limited to this embodiment. Further, members having the same functions as conventional members are indicated using the same symbols. And this idea A close contact device for sheet-like objects is placed inside the film changer installed in the X-ray imaging device. The X-ray film adhesion device will be described below as an example.

[0013] As shown in FIG. 4, the X-ray imaging apparatus 1 is used to detect, for example, a subject 3 whose chest is to be imaged. An X-ray generator 2 that irradiates X-rays from behind and an X-ray generator 2 that is set at the front chest position of the subject 3. A film changer 4 that holds the film changer 4 and a lift that can be raised and lowered. It consists of a landing platform 5.

[0014] Then, as shown in Figure 3, the film changer 4 is placed around the The outer shell is made up of a housing 4a that encloses the It is installed in the loading section of the supply magazine 6a in which the program 6 is stored and in the upper part of the housing 4a. A first conveying means for conveying the X-ray film 6 to the front plate 8 of the photographing section. A group of a pair of supply conveying rollers 7, a positioning plate 10 of the X-ray film 6, and the frame A back plate 9 that presses and holds the X-ray film 6 on the front plate 8 and a front plate that has been photographed. A pair of take-out rollers 11 for taking out the X-ray film 6 and a pair of take-out rollers 11 provided at the bottom of the housing 4a Conveyance unit 12, which is the second conveyance means when conveying directly to an automatic developing machine, and photographing It is also installed in common with the receive magazine 20 that stores the previously-mentioned X-ray film 6. The loading section 21 includes a loading section 21 and a loading section 21. Note that FIG. 3 shows the case where the transport unit 12 is It shows the state in which it has been worn.

[0015] Then, the supply magazine 20 is placed in a predetermined position of the film changer 4. When loaded, it faces the 6 sides of the X-ray film stored in the magazine 5. The suction cup 6b provided in the The supply is supplied to the pair of supply conveyance rollers 7 located on the opposite side and is conveyed along a predetermined conveyance path. The fed X-ray film 6 is placed near the left center of the film changer 4. A front plate 8 is provided, and the front plate 8 is located on the right side facing the front plate 8 and is open at the top. It is inserted between the back plate 9 and the back plate 9.

[0016] The back plate 9 is rotatable about its lower end, and the back plate 9 is rotatable about its lower end. It has a structure that allows it to move in the direction of the control plate 8. Further, the front plate 8 and the The back plate 9 is large enough to cover the maximum size of the existing X-ray film 6. It has become a mystery. Further, on the opposing surfaces of the front plate 8 and the back plate 9, Photosensitive paper sheets 8a and 9a are attached. Then, the transported X-ray film 6 is a positioning strut provided at the lower ends of the front plate 8 and the back plate 9. by the upper 10 and guides (not shown) provided on both sides of the front plate 8. After being positioned, the back plate 9 is rotated counterclockwise as shown by the arrow. Move in the direction of the front plate 8 surface and press the X-ray film 6 with a predetermined pressing force. Press it against the 8 sides of the front plate.

[0017] Then, X-rays are irradiated by the X-ray generator 2 to a predetermined part of the subject 3. The X-ray film 6 that has been photographed is released from the pressure of the back plate 9. The stopper 10 moves to the left or right and the lower end of the X-ray film 6 is released. Then, it is dropped between a pair of take-out rollers 11 provided below.

[0018] The photographed X-ray film 6 is then held and rotated by the pair of take-out rollers 11. The film is conveyed to the conveyance unit 12 by a roller and the film chain is conveyed to the conveyance unit 12 as shown in the figure. The filter shown in the direction of the arrow follows a predetermined conveyance path provided across the jar 4. The film is transported into an automatic developing machine (not shown) adjacent to the right side of the changer. this In this way, the X-ray film 6 in the supply magazine 6a is photographed one after another. The film is then transported to the automatic developing machine and developed.

[0019] In addition, if the automatic developing machine breaks down or you are taking a limited number of photographs, please be sure to Take out the feeding unit 12 from the film changer 4 and insert it into the same loading section 21. Load the receive magazine 20 and store the photographed X-ray film 6. I have to.

[0020] The present invention eliminates the above-mentioned problems and improves the front plate 8 and the back plate 9. The driving means of the contact device for bringing the two into contact and separation was constructed as follows.

[0021] That is, as shown in FIG. A crank disk 13 is provided with a motor 22 and is fitted onto the main shaft of the motor 22. A pusher whose one end is rotatably connected to a connecting pin 13a that is eccentrically planted on the surface of the main shaft. It is integrally attached to the other end of the pressure link lever 15a and near the upper side of the back plate 9. The first end of the bracket 11a is rotatably connected with the connecting pin 14. 1 drive mechanism 23 is configured. Then, the first drive mechanism 23 is provided. The same mechanism as the above-mentioned first drive mechanism 23 near one edge and the other edge opposite to the other edge. A second drive mechanism 24 consisting of a functional press link lever 15b and a motor 22a is installed. I'm being kicked.

[0022] The respective motors 22, 22a of the respective drive mechanisms 23, 24 rotate forward and the back plate 9 By bringing the front plate 8 into close contact with the front plate 8 and rotating it in the opposite direction, the back plate 9 is released from the close contact. It is now possible to do so.

[0023] The connecting pin 13a installed in each crank disc 13 and each motor -22, 22a with respect to the main shaft is the operating stroke of each pressing link lever 15a, 15b. It has become a market. Note that each of the first and second drive mechanisms 23 and 24 is connected to the back plate 9. It may be provided on each of the upper and lower edges, or on each of the left and right edges.

[0024] The first and second drive mechanisms 23 and 24 configured in this manner operate as follows. Ru.

[0025] The front plate 8 and the back plate 9 sandwich the X-ray film 6 in close contact with each other. When X-rays are irradiated and imaging is completed, the motor 22 of the first drive mechanism 23 starts to rotate in the opposite direction, and the back plate 9 is moved to the right by the rotation of the pressing link lever 15a. One edge portion of the back plate 9 that is in close contact with the front plate 8 is pulled in the opposite direction. They begin to separate, and air flows between the X-ray film 6 and each of the intensifying screens 8a and 9a. Enter. Then, place the back plate 9 at a predetermined position with one edge part separated. When the pressure is reached, the motor 22a of the second drive mechanism 24 is then rotated in the opposite direction to release the pressure. The other edge portion of the back plate 9 is separated by rotating the lever 15b, and the above-mentioned one Air is allowed to flow in from the other edge portion in the same manner as from the one edge portion. And then continue Each of the motors 22, 22a rotates, and each of the pressing link levers 15a, 15b is connected to each other. The entire surface of the back plate 9 is rotated by a predetermined stroke via the pin 13a, and the front surface is After separating from the top plate 8 and releasing the grip of the X-ray film 6, as shown in FIG. When a predetermined separation position is reached at a predetermined interval, a sensor (not shown) is detected, the motors 22, 22a stop, and the contact device 26 closes the X-ray film. Wait in the state before insertion.

[0026] Then, the stopper 10 moves to either the left or right and the front plate 8 and the bag The lower part of the film plate 9 is released and the photographed X-ray film 6 is transported to the next step. After being conveyed to the feeding unit 12, the front plate 8 and the back plate 9 are In the meantime, the unphotographed X-ray film 6 is conveyed.

[0027] The motors 22, 22a of the first and second drive mechanisms 23, 24 rotate in the forward direction. Then, the back plate 9 is moved back to the front via the respective pressing link levers 15a, 15b. The inserted X-ray film 6 is moved in the direction of the top plate 8 and kept in close contact with a predetermined pressing force. When the back plate 9 reaches a predetermined set position, a sensor activates each motor. -22, 22a are stopped and the contact device 26 stands by in a state of waiting for photographing.

[0028] Therefore, when the close contact is released, the first and second drive mechanisms 23 and 24 start operating. By starting the rotation of each of the motors 22, 22a with a predetermined time difference when This makes it easier for air to enter from the respective peripheral areas of the front plate 8 and the back plate 9. They can be separated from each other very smoothly.

[0029] Further, each of the motors 22, 22a is connected to each peripheral portion of the back plate 9 as described above. Since the close contact is released, for example, the upper edge portion of the back plate 9 can be separated. The force used to separate the back plate 9 from the center is much weaker than the conventional force used to separate it from the center of the back plate 9. A low torque motor allows for smooth separation and prevents damage to the back plate 9. It can be avoided.

[0030] Furthermore, when using the drive mechanism 18 of the conventional contact device 19 as shown in FIG. As shown in FIG. Face the upper edge (or lower edge) of the front plate 8 to avoid air leakage when the contact is released. Air is introduced between the plates 8 and 9 by the injection and the tensile force of the press link 17. It is also possible to separate them smoothly. Seats equipped with such auxiliary means Of course, a device for adhering tab-shaped photosensitive materials is also within the scope of the present invention.

[0031]

[Effect of the idea]

The drive mechanism and auxiliary means of the adhesion device according to the present invention allow for low-speed release of adhesion. Separating the front plate and back plate extremely smoothly using a motor Now you can. Therefore, the deformation or damage of the back plate that occurs when the contact is released is prevented. Now completely avoided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing the structure of a device for adhering sheet-like photosensitive materials according to an embodiment of the present invention. FIG. 2 is a side view showing an auxiliary means for releasing contact according to an embodiment of the present invention. FIG. 3 is a side sectional view showing the structure of the film changer. FIG. 4 is a schematic diagram showing the configuration of the X-ray imaging apparatus. FIG. 5 is a side view showing the structure of a conventional sheet-like photosensitive material adhesion device.

[Explanation of symbols]

1...X-ray imaging device 4...Film changer 6...X-ray film 8...Front plate 9...Back plate 11, 11a...Mounting plate 13...Crank disc 13a, 14...Connecting pin 22, 22a, 32...Motor 15a, 15b …
Pressing link lever 18, 23, 24... Drive mechanism 19, 26, 27... Close contact device 25... Spray nozzle (auxiliary means)

Claims (2)

[Scope of utility model registration request] 1. A contact device comprising a fixed front plate and a movable back plate facing each other so as to be openable and closable, and holding a sheet-like photosensitive material between the two plates, wherein the front plate and the back plate are A first driving means for moving the position of the back plate so as to be able to move toward and away from the vicinity of one edge, and a second drive means for moving the position of the back plate so that the vicinity of the opposing edge can be moved toward and away from the first driving means. A device for adhering sheet-like photosensitive materials, characterized in that a time difference is provided between the start of operation of the first and second driving means when the adhesion of the adhesion device is released. 2. A close contact device comprising a fixed front plate and a movable back plate facing each other so as to be openable and closable, and holding a sheet-like photosensitive material between the two plates, in which a sheet of photosensitive material is placed near the center of the back position. actuation of the drive means when the close contact of the close contact device is released, the contact device having a drive means for moving the position of the back plate so as to be able to come into contact with and separate from the front plate, and an air injection means facing one surface of the outer periphery where the two plates are joined; A device for adhering sheet-like photosensitive materials, characterized in that the air injection means is activated at the same time as the start.