SU1120275A1 - Camera for taking pictures on sheet film - Google Patents

Abstract

1. CAMERA FOR PHOTO SHOOTING ON A SHEET FILM, containing a mechanism for transferring a film from a supply cassette to a coordinate shooting unit and to a receiving cassette using vacuum grippers, a drawing application unit and a coordinate shooting unit with a frame in which a frame window is made, with lenses and a device for coordinate-step movement of the film, made in the form of carriages for frame and line movements, mounted for movement along mutually perpendicular guides with using gears, the feeding and receiving cassettes are placed in cassette receivers, characterized in that, in order to ensure shooting on a warped sheet film, to simplify the design and increase productivity, the film transfer mechanism is implemented in the form of a shaft with reciprocating movement, at the ends of which there are respectively a profiled cam cam and two cantilevers with vacuum grips installed at their ends, made in the form of elastic suction cups, vn The cavity of which is connected through valves to the atmosphere, the transfer mechanism of the personnel transfer carriage is made in the form of a rack mounted on it, interacting with the crank-connecting rod mechanism, and the transfer mechanism of the inline movement carriage is fixed in the form of a gear rack attached to it, which interacts with the frame one mounted on the carriage the movement of the pusher, is provided with (a small roller sliding along an inclined face fixedly fixed relative to both carriages of the wedge. 2. Pop-up Camera 1, characterized in that the horizontal movement carriage is made in the form of a rectangular frame with a hinged lid and step Tm with a central rectangular hole with a supporting step along its perimeter, to accommodate the film, and on the side of the cover there is a larger hole with dimensions corresponding to the format of the film. 3. Camera pop. 1, characterized in that the frame with the frame window is installed. movable along the optical axis of the lens. 4. The chamber according to claim 1, characterized in that the gear racks of the transmission mechanisms are wired with different steps for

Description

each face in accordance with the number of frames and lines placed on the film.

5. Camera pop, 1, characterized in that, in order to ensure automatic opening and closing of the cassette when installed in a cassette receiver and removed from it, the cassette is equipped with a screwdriver, a mechanism, a film cutter and a spring-loaded pusher, while the blocking mechanism is as fixed on the zirchgke locking

elements with grooves interacting with spring-loaded latches with a gap between them installed in the housing with the possibility of movement when a cone stop with which the cassette receiver is fitted is inserted into the gap.

6. The camera according to claim 5, wherein the film cutter is made in the form of a rigid element with a pointed edge associated with the cover and installed with the possibility of its longitudinal movement.

The invention relates to a micrographic technique, namely, cameras of a static matrix shooting on a sheet format film. A known apparatus for shooting documents on a sheet of photographic film containing a shooting camera mounted with the possibility of vertical movement on a frame, a table for spreading and leveling originals, illuminators. The filming camera contains a film transfer mechanism with a vacuum pick-up from the feeding cassette successively in the centering position, caption shooting, frame-by-frame coordinate shooting, and further to the receiving cassette, which is combined with a coordinated stepping device that consists of two carriages moving along mutually perpendicular guide running screws. The vacuum gripper is mounted on the horizontal transport carriage and is made in the form of a suction plate, the necessary discharge of which is provided by a vacuum pump. The suction pad is a film holder. Moving the film to the frame step is made by a stepper motor controlled by switches that the carriage interacts with as it moves. Moving the film in rows takes place with noMou bKv profile lines, which control, through microswitches, electrical couplings connected to a moving screw with a cooTBBTCTByipniHM. The film is clamped to the frame window immediately before exposure by lowering the film holder onto the frame window by means of a cam mechanism connected with the rotary shutter II. The closest to the technical essence of the invention is a camera for photographing on a sheet film containing a film camera rigidly fixed on a bed, a table for placing and leveling originals, illuminators. The imaging camera contains a mechanism for transferring the bag using a vacuum pick-up from the supply cassette successively to the centering position, caption shooting, frame-by-frame coordinate shooting and further to the receiving cassette combined with frame-by-frame coordinate movement, which are two carriages moving along mutually perpendicular guides running screws with screws. The vacuum gripper is mounted on the horizontal movement carriage and is made in the form of a suction plate, the necessary time on which is provided by a vacuum pump. The suction pad is a film holder. Moving the film to the frame step is performed by a stepper motor controlled by micro-switches, with which the carriage interacts with itself when it moves. Similarly, the film moves to the lines after filling the entire line with micro frames. Before exposing the film, which is produced with a constant exposure determined by the speed of movement of the butterfly valve, the holder with the film is lowered onto the personnel window by means of a separate electric motor, while the vacuum on the suction plate is released. The film is fed to the next exposure position after the holder is lifted from the frame window, and the film is again gripped by the holder with the help of the created vacuum 21. However, in the well-known chamber, the film transfer mechanisms and its coordinate-displacement during frame-based photography are structurally combined, which leads to MULTIPOSITION and an increase in the duration of the working cycle, complicates camera control, and performing a vacuum pickup in the form of a suction-plate imposes strict requirements on the non-flatness of the film. . In this case, in the coordinate shooting unit, the movable element is a massive suction plate, lowering the non-movable personnel window, which requires a separate electric drive with its control system and lengthens the shooting process. In addition, the camera does not provide the ability to change the programs of coordinate shooting (number of frames, lines). The aim of the invention is to provide a shot on a warped sheet film, simplifying the design and increasing productivity. This goal is achieved by the fact that the transfer mechanism of the film is made in the form of a shaft installed with the possibility of reciprocating movement, at the ends of which there are respectively a shaped cam and two cantilevers with vacuum grips installed at their ends, filled in the form of elastic suction cups, the internal cavity of which is connected through valves with the atmosphere, the transfer mechanism of the personnel transfer frame carriage is made in the form of a rack mounted on 54 nexes interacting with the crank shaft the tunnel mechanism, and the transfer mechanism of the carriage of the lower-level movement is made in the form of a rack mounted on it, interacting with a pusher mounted on the frame carriage equipped with a roller, sliding along the inclined face of the fixed wedge relative to both carriages. The horizontal movement carriage is made in the form of a rectangular frame with a hinged pinch and a stepped central rectangular hole with a supporting step along its perimeter to accommodate the film, and from the side of the cover there is a larger hole with dimensions corresponding to the film format. The frame with the frame window is mounted for movement along the optical axis of the lens. Gear racks of transmission mechanisms are made with many-sided with different pitch on each face in accordance with the number of frames and lines placed on the film. In order to provide automatic opening and closing of the cassette when installed and withdrawn from the cassette holder, the cassette is equipped with a locking mechanism, a film cutter and a spring-loaded pusher, while the locking mechanism is made in the form of locking elements fixed on the cover with grooves interacting with spring-loaded latches with a gap between them, mounted in the housing with the possibility of movement when entering into the gap the cone stop, which is provided with the cassette receiver. The film cutter is made in the form of a hard-faced element with a pointed edge connected with the lid and installed with the possibility of its longitudinal movement. Figure 1 shows the overall layout of the functional units of the camera; in fig. 2 shows the mechanism of the film transfer, a general invention; in FIG. 3, a device for coordinated-step movement of the film; in FIG. 4, the horizontal displacement carriage, section; FIG. 3, frame window, section; fig 6 - cassette

for a film, section I in FIG. 7 is a device for blocking the cassette mechanism, on the FNG, 8 — a node is applied;

The shooting camera contains a film transfer mechanism (not yet 3aHrf) located in an opaque housing (not shown), a 2-axis shooting unit with a frame window & Ob7., by the lenses 3 and the fso-uiaroBoro device 4 coordinates moves the film, which feeds 5 and receives 6 cassettes for the film, the drawing application unit 7,

The mechanism for transferring the film from the feed box; 5 into the block 2 of the coordinate shooting and from it into the receiving cassette 6 consists of a separate shaft-driven shaft 8 driven by the enemy 8 mounted with the possibility of longitudinal movement according to the law set by the cam 10, flange 1I is mounted on the shaft 9 with two grooves 5 on which is secured in one plane, the dpc consoles 12 and 13, have 1 h;

The device 4 of the coordinate-step movement of the block of the coordinate survey contains frame 18 and lowercase 19 ps carts: Repeat, moving in perpendicular directions, attached to the camera body (not shown) and the carriage 18, respectively.

The gear mechanism of the carriage 18 contains a toothed rack 20 fixed on it, a movable crankshaft. A connecting rod mechanism 21 driven by a separate electric motor 22. The transfer mechanism of the carriage 19 consists of a toothed rack 23 mounted on it, with which the pusher 24 mounted on the carriage 18 interacts; axis 25 s. a roller 26 mounted on it, sliding along an inclined face of a wedge 27 fixed to the camera body.

The positions of the carriages 18 and 19 are fixed by latches 28 and 29, controlled through a system of levers by an electromagnet 30 and a return spring-pitch 31 and 32. The racks 20 and 23 can be made multi-faceted with different tooth pitch on each face in accordance with the required number frames and lines hosted

on the film, the wedge 27 is fixed on the camera hull with the possibility of changing its position depending on the required angle of inclination of the face in contact with the roller 26, the stroke limiter of the rail 20 is interacting with the connecting rod of the crank mechanism 21 pin 33, equalized by an electromagnet 30 through system t g 34.

The carriage 19 is made in the form of a frame with a stepped central rectangular hole (not shown), the hinge 35 is hinged to the end of the carriage 19, which serves as a clamping plate with a groove in which the lever 36 holds the sheet of film in the carriage in the initial stage lifting the cover 35. A large opening made from the side of the clip 35 with dimensions corresponding to the format of the film forms, with a smaller support step, the inner perimeter of the carriage for dismounting and holding a sheet of film.

The frame window and structurally combined with a pivotally fixed camera body of a spring-loaded strap 37. contains a frame size limiter 38, a lift bar 39 and a 9 electro1 magnetic actuator 40.

The film cassette 5 comprises a light-tight housing 41 with a locking mechanism 42e hinged on it, a locking mechanism consisting of spring-loaded latches 435 installed in front of the housing with a gap and between them and fixed to the cover 42 of locking elements 44 with grooves (not shown), into which the indicated latches enter. KpcfMe additionally, the cassette is provided with a spring-loaded pusher 45 built into the body, which is in contact with the hinge 46 of the cover 42, and a film cutter 47 connected to it, made in the Bidet of a rigid element with a pointed front edge projecting into the working cavity.

The application unit 7 for the header consists of body 48 with side panel 49, illuminator 50 ,. the light-scattering element 51 to the transparent screen 52. The contacts 53 through the microswitch 54 connect the illuminator to the external electrical circuit Sne (shown). The camera works as follows. The cassette 5 is loaded with a format film of up to 50 sheets and inserted into the side cassette receiver (not shown) of the camera, while the conical stop 55 located in the cassette receiver pushes the latches A3, the entrance to the gap between them. The latches 43 emerge from the grooves of the locking elements 44, and the cover 42 under the action of a spring-loaded body 45 rises to the upper position, opening the cassette, and the film cutter 47 extends from the body inside the cassette. On the opposite side of the camera, in the same way, insert the same empty cassette for receiving the exposed film. By turning on the electric drive g, the rotational movement of the shaft 9 is reported, while the arms 12 and 13 with the suction cups 14 and 1 come out of the neutral zone and are installed. above the working positions: the first above the feeding cassette 5. the second above the carriage 19. After that, the rotation is stopped, and the shaft 9 together with. Consoles 12 and 13 are lowered to the lower position until the suction cups stop. 14 and 15 in the film. Next, the shaft 9 is moved to the upper position, while the top sheet of the film in the receiving cassette 6 is gripped by the suction cups 14, and when it is raised, it is bent and is contacted first with its edge and then with the edge with the pointed edge of the body compartment 47, which provides separation and discharge back to the cassette of the remaining films in case of their adhesion to the recovered sheet. Upon further rotation of the shaft 9, this film is transferred to the position of the coordinate shooting in a position above the carriage 19, while simultaneously with the beginning of the rotation of the shaft 9 the cover 35 of the said carriage is raised with the help of the lever 55. The shaft 9 is again moved to the lower position, the relief valve 16 opens, and the film is placed in the carriage 19, the internal dimensions of which correspond to the format of the film and ensure its centering. After that, the shaft 9 rises to the upper position and, turning, brings the console with suction cups into the neutral zone, at the same time the carriage bracket 35 is closed, pressing the centered film around the perimeter of the support step. At the end of the film transfer cycle, the engine is automatically shut off. Stop the rotation of the shaft 9 in the positions of the consoles with suction cups. above the working positions is performed using the locking latch 56, which falls into the grooves 5 of the flange 11. When removing the bar 37 of the personnel window 44 is moved along the optical axis by the electromagnetic actuator 40, using the chip 39, the film is pressed to the surface of the key 35 of the carriage 19, aligning it within single frame. After exposing the frame, the film is returned to its original position by the action of the spring 57. The frame size is set by limiter 38. Moving the film to the shooting position for the next frame is made by moving the carriage 18 with the rack rail 20 when the electric drive 22 of the crank mechanism 21 is turned on. The shooting process is repeated until the entire row is filled with micro frames. The transition to the next line is made from the exposure position of the last frame, while the pusher 24 sliding on the rail 23 engages with the next tooth of this rod and transfers the carriage 19 to the next line during the reverse stroke of the carriage 18. The shooting process is repeated until all the rows are filled with micro frames. . The rollers 18 and 19 are returned to their original positions with the help of springs 31 and 32 with the release of rails 20 and 23 by latches 28 and 29 before starting the electric drive of the film transfer mechanism. After the entire film has been removed, the transfer mechanism 1 using suction cups 15 of the second console 13 transfers the exposed film from the carriage 19c to the receiving cassette 6 while the suction cups 14 of the first console 12 of the next sheet of film from the feeding cassette 5 are transferred to the coordinate shooting position in the carriage 19. The header is applied by contact photo printing at the position of a coordinate survey using a separate node 7. For a correct format, the original (not shown) of the header is fixed with clamps 49 on the surface wound 52, after which the specified node is inserted into a special window (not shown) in the lower part of the camera body until it stops, while the carriage 19 is automatically shifted to the second line, and the original header is pressed tightly against the section of the film reserved for it a dosed burst of the illuminator 50 when triggering the microswitch 54. Changing the program of the coordinate survey is performed by changing the working faces of the rack racks 23 by turning them around the longitudinal axis. At the end of the work, the receiving cassette with sheets of exposed film is removed from the side cassette receiver, while as the cassette progresses through its slit, the cover 42 is lowered into the lower position and fixed in it by snaps entering the slots of the locking elements. When the cover is lowered, the cutter 47 is sunk into the body, and the stack of the exposed film is placed all the way to the bottom of the cassette, not preventing the closure of the cover. The implementation of vacuum gripping in the form of elastic suction cups reduces the film nonplanarness requirements and makes it possible to use photographic materials with almost any type of substrate. The design of the gears of the device for the coordinate-step movement of the film makes it easy to rearrange the coordinate shooting program (the number of frames and lines placed on the film sheet) by changing the shooting step by changing the working edges of the gear racks by simply turning them around the longitudinal axis. The design and form of making the carriage of line movement in conjunction with the moving frame window provide centering of the film, its retention and alignment during exposure. In addition, the use of a movable frame window with an electromagnet drive for pressing the film from the carriage cover and aligning it within one frame allows you to speed up the shooting process. Automatic opening of the cassettes when they are installed in the working positions. In the chamber, the closure during extraction is provided by the design of the locking mechanisms that come into contact with the conical stops of the cassette receivers. Applying a header using contact photo printing improves image quality for. account of the exclusion of possible errors in optics.

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Claims (6)

1. CAMERA FOR SHOOTING FILM PHOTO, containing the mechanism for transferring the film from the supply cassette to the coordinate survey unit and the receiving cassette using vacuum grips located in a lightproof housing, a header application unit and coordinate survey unit with a frame in which the frame window is made with lenses and a device for coordinate-step movement of the film, made in the form of carriages of frame and line movements, installed with the ability to move along mutually perpendicular guides using transmission mechanisms, while the supply and receiving cassettes are placed in cassette receivers, characterized in that, in order to ensure shooting on a warped sheet of film, simplify the design and increase productivity, the film transfer mechanism is made in the form of a shaft mounted with the possibility of reciprocating movement, at the ends of which, respectively, a profiled cam and two consoles with vacuum grips installed at their ends, made in the form of elastic suction cups, are located, the inner floor which are connected via valves to the atmosphere, the transmission mechanism of the personnel movement carriage is made in the form of a gear rack fixed to it, interacting with a crank mechanism, and the transmission mechanism of the horizontal movement carriage is made in the form of a gear rack mounted on it * interacting with the carriage mounted on the carriage personnel movement with a pusher equipped with a roller sliding along an inclined face of a wedge fixedly fixed relative to both carriages. 2. The camera according to claim 1, characterized in that the horizontal carriage is made in the form of a rectangular frame with a hinged lid and step with a central rectangular hole with a support step along its perimeter to accommodate the film, moreover, a larger hole with dimensions is made from the side of the lid corresponding to the film format. 3. The camera according to claim 1, characterized in that the frame with the frame window is installed. · With the ability to move along the optical axis of the lens. 4. The camera according to claim 1, characterized in that the gear racks of the transmission mechanisms are made hew homogeneous with different steps on each face in accordance with the number of frames and rows placed on the film. 5. The camera according to claim 1, characterized in that, in order to ensure automatic opening and closing of the cartridge when installed in and removed from the cartridge, the cartridge is equipped with a locking mechanism, a film cutter and a spring-loaded pusher, while the locking mechanism is made in the form of fixed on the cover of the locking elements with grooves interacting with the spring-loaded latches with a gap between them, mounted in the housing with the ability to move when entering into the gap conical emphasis, which is equipped with a cassette receiver. 6. The camera according to claim 5, characterized in that the film cutter is made in the form of a rigid element with a pointed edge associated with the lid and installed with the possibility of its longitudinal movement.