CN114374771B - Film scanning device - Google Patents
Film scanning device Download PDFInfo
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- CN114374771B CN114374771B CN202210025610.1A CN202210025610A CN114374771B CN 114374771 B CN114374771 B CN 114374771B CN 202210025610 A CN202210025610 A CN 202210025610A CN 114374771 B CN114374771 B CN 114374771B
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- film
- reflecting mirror
- assembly
- conveying unit
- conveying
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
- H04N1/00602—Feed rollers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/0057—Conveying sheets before or after scanning
- H04N1/00599—Using specific components
- H04N1/0061—Feed belts
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/00631—Ejecting or stacking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
- H04N1/00644—Counting or calculating, e.g. a number of remaining sheets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides a film scanning device, which comprises a frame, a light receiving unit, an optical scanning assembly, a film conveying assembly, a film output guiding structure, a film taking-out assembly and a control circuit, wherein the light receiving unit, the optical scanning assembly, the film conveying assembly, the film output guiding structure, the film taking-out assembly and the control circuit are arranged in the frame; the upper surface of the frame is provided with a film carrier; the optical scanning assembly is arranged below the film carrier, the light receiving unit is arranged opposite to the optical scanning assembly, and the film conveying assembly is arranged between the optical scanning assembly and the light receiving unit; the film output guide structure is correspondingly arranged at one end of the film conveying assembly, which is positioned at the film outlet; the film taking-out component is arranged at the bottom of the inner cavity of the frame and corresponds to one side of the film output guiding structure, from which the film is output; the control circuit is arranged at the bottom of the inner cavity of the rack. The beneficial effects of the invention are as follows: the resolution ratio of graphic output can be improved, the scanning quality is ensured, the blocking and clamping situations of films are prevented, and the scanning efficiency is improved.
Description
Technical Field
The invention relates to the technical field of film scanners for industry and medical treatment, in particular to a film scanning device.
Background
At present, the domestic film scanning technology is relatively lagged, and the whole structure of the traditional film scanning device is complex, so that the device is mainly applied to the fields of digital scanning of X-ray films after industrial nondestructive detection, digital scanning of medical X-ray films and the like. The conventional film scanning devices used in the market today suffer from the following disadvantages:
the first and traditional film scanning device adopts a light source mobile scanning device, namely: the film is placed still, the scanning components such as the illumination light source and the like move from one end of the film to the other end of the film at a constant speed in a mechanical operation mode driven by a driving motor for scanning, the scanning accuracy of the scanning mode is low, the resolution of a scanned image is low, the gray level quality of the image is poor, and the later film observation diagnosis is seriously influenced;
secondly, the film scanning device of the traditional film scanning device is used for outputting films with different specifications and sizes in sequence in a staggered way, so that an operator is required to frequently check a film taking-out assembly, the output films are manually interfered for finishing so as to prevent the films from being blocked and scratched, the labor intensity of the operator is increased due to complicated work, and the working efficiency is low;
thirdly, the traditional film scanning device has complex structure and inconvenient operation, meanwhile, the film taking-out assembly is inconvenient to take out the film, and the film can not be automatically adjusted to a position suitable for taking out the film, so that the whole machine can not continuously and normally run, and the working efficiency is low;
fourth, traditional film scanning device can not detect in succession fast whether the quantity of film scanning image is unanimous with the film quantity of scanning, adopts artifical proofreading's mode to go on, probably can appear leaking scanning phenomenon because trouble reasons such as light path for film reading storage's image is inconsistent with actual scanning output's film quantity, and intelligent degree is not high, influences whole film scanning efficiency.
In view of the above technical problems in the prior art, a technical solution for solving the above technical problems is needed.
Disclosure of Invention
Accordingly, the present invention is directed to a film scanner capable of improving the resolution of graphic output, ensuring the scanning quality, preventing film jam and jamming, and improving the scanning efficiency.
The invention provides a film scanning device, which comprises a frame, a light receiving unit arranged in the frame, an optical scanning assembly, a film conveying assembly, a film output guiding structure, a film taking-out assembly and a control circuit which are respectively arranged in the frame.
The upper surface of the frame is provided with a film carrier corresponding to the film conveying assembly; a film inlet corresponding to the film conveying assembly is formed in one side, close to the film conveying assembly, of the film carrier; the optical scanning assembly is arranged below the film carrier, the light receiving unit is arranged opposite to the optical scanning assembly, and the film conveying assembly is arranged between the optical scanning assembly and the light receiving unit; the film output guide structure is correspondingly arranged at one end of the film conveying assembly, which is positioned at the film outlet; the film taking-out component is arranged at the bottom of the inner cavity of the frame and corresponds to one side of the film output guiding structure, from which the film is output; the control circuit is arranged at the bottom of the inner cavity of the rack.
The optical scanning assembly comprises an optical substrate, a first cylindrical lens, a second cylindrical lens, a laser oscillator, an f-theta lens, a beam expander, a first reflecting mirror, a second reflecting mirror, a third reflecting mirror, a fourth reflecting mirror, a rotary polygon prism, a shielding baffle plate and a photoelectric sensor which are respectively and correspondingly arranged on the optical substrate. The first cylindrical lens is fixedly arranged on the optical substrate along the width direction of the optical substrate through a lens mounting frame and is arranged towards one side of the light receiving unit; the length of the first cylindrical lens corresponds to the length of the light receiving unit; the rotary polygon prism is arranged on the optical substrate in the middle and is far away from one side of the first cylindrical lens; the f-theta lens is arranged on the optical substrate in the middle and is arranged towards one side of the rotary polygon prism; the laser oscillator is arranged between the first cylindrical lens and the f-theta lens and is arranged near the side edge of the optical substrate; a first reflecting mirror and a second reflecting mirror are respectively arranged at two opposite sides of the optical substrate, which are close to the edge and are positioned behind the rotary polygon prism, at one side of the optical substrate, which is far away from the first cylindrical lens, the first reflecting mirror is arranged at one side of the optical substrate, which corresponds to the laser oscillator, and a beam expander is arranged between the laser oscillator and the first reflecting mirror; the laser oscillator, the first reflecting mirror and the beam expander are aligned in a straight line; the photoelectric sensor is arranged on one side opposite to the laser oscillator, a third reflecting mirror is arranged between the photoelectric sensor and the second reflecting mirror, and the photoelectric sensor, the second reflecting mirror and the third reflecting mirror are aligned in a straight line; the third reflecting mirror is positioned between the first cylindrical lens and the f-theta lens and is arranged at a position close to one side of the f-theta lens; the second cylindrical lens is arranged between the first reflecting mirror and the second reflecting mirror and is aligned with the first reflecting mirror and the second reflecting mirror in a straight line; the fourth reflecting mirror is arranged between the first cylindrical lens and the photoelectric sensor and is arranged close to one side of the first cylindrical lens; a shielding baffle plate is arranged between the third reflecting mirror and the light reflecting direction of the rotary polygon prism, and the shielding baffle plate is arranged on one side close to the f-theta lens.
Preferably, the film conveying assembly comprises a first conveying unit, a second conveying unit and a third conveying unit; the first conveying unit is arranged at one side of the film inlet; the third conveying unit is arranged at one side of the sheet outlet; the second conveying unit is arranged between the first conveying unit and the third conveying unit; the first conveying unit and the third conveying unit comprise a first silica gel driving roller and a first silica gel driven roller, and a film conveying space is formed between the first silica gel driving roller and the first silica gel driven roller; the second conveying unit comprises a second silica gel driving roller and a second silica gel driven roller which are connected through a first silica gel belt, and a second silica gel driving roller and a second silica gel driven roller which are connected through a second silica gel belt; a film conveying space is formed between the first silica gel belt and the second silica gel belt; and a scanning reading area matched with the optical scanning assembly and the light receiving unit is formed between the sheet outlet of the second conveying unit and the sheet inlet of the third conveying unit.
Preferably, the film output guiding structure comprises a first inclined guiding section, a second inclined guiding section, a third vertical guiding section and a fourth inclined guiding section which are integrally bent and formed; the first inclined guide section is arranged towards one side of the sheet outlet of the third conveying unit; the second inclined guide section is arranged obliquely downwards; the first inclined guide section is inclined towards one side of the light receiving unit; the fourth inclined guide section is inclined toward a side away from the light receiving unit.
Preferably, the film taking-out assembly comprises an electric push rod, a pin shaft, a hinged movable joint and a movable guide plate; the electric push rod is fixedly arranged at the bottom of the inner cavity of the rack through the mounting bracket, the power output end of the electric push rod is connected with the hinged movable joint through a pin shaft, and the movable guide plate is arranged on the hinged movable joint; the hinged movable joint is arranged close to one side of the fourth inclined guide section; one side of the movable guide plate is hinged with the fourth inclined guide section through a hinge.
Preferably, a baffle is integrally formed on one side of the movable guide plate away from the fourth inclined guide section.
Preferably, a first film detection sensor arranged on the frame is arranged on one side of the film carrier; a second film detection sensor is arranged between the first conveying unit and the second conveying unit; and a third film detection sensor is arranged between the third conveying unit and the film output guiding structure.
Preferably, a film counting sensor is arranged between the film output guiding structure and the movable guide plate.
Preferably, the light receiving unit includes a condenser and a photoelectric converter.
Preferably, the film is in accordance with the condition A.ltoreq.L, wherein A is the length of the first film, and L is the length of the movable guide plate.
Preferably, the method meets the condition that the formula A is less than or equal to L and less than or equal to Acos theta+B, wherein A is the length of a first film, L is the length of a movable guide plate, B is the length of a second film, and theta is the included angle between the movable guide plate and a second inclined guide section when the movable guide plate is in an initial slide-carrying state, and the included angle is more than or equal to 15 degrees and less than or equal to 45 degrees.
The beneficial effects of the invention are as follows:
1. the optical scanning assembly comprises an optical substrate, a first cylindrical lens, a second cylindrical lens, a laser oscillator, an f-theta lens, a beam expander, a first reflecting mirror, a second reflecting mirror, a third reflecting mirror, a fourth reflecting mirror, a rotary polygon mirror, a shielding baffle and a photoelectric sensor which are respectively and correspondingly arranged on the optical substrate, and adopts the light path transmission mode of the rotary polygon mirror, the reflection of the cylindrical lens, the f-theta lens and the photoelectric sensor to scan, read and store information, so that the difference between the lightest color and the darkest color of a scanned film can be detected, the resolution of the output image is high, the gray level of the image is good, the dynamic density range of the image is high, the gradation information on the film image can be better captured, the quality of the scanned image is well ensured, the later film watching effect and the diagnostic performance can be well improved, and the storage efficiency and the later retrieval efficiency of the X-ray film image information are improved to a certain extent;
2. by arranging the film taking-out assembly, one side of the movable guide plate is hinged with the fourth inclined guide section through a hinge, so that the phenomenon of clamping stagnation is avoided, and the running performance of the whole device is improved;
3. the first film detection sensor, the second film detection sensor and the third film detection sensor are respectively arranged, so that the whole control system can know the real-time position of the film and the dynamic change information of the film through the detection sensor information, the intelligent control in the scanning process is sequentially realized, and the manual intervention detection is reduced;
4. the film counting sensor is arranged, so that the film is conveniently taken out in a whole stack, excessive manual intervention is not needed in the whole process, intelligent control is realized, and meanwhile, the working intensity of operators is relieved;
5. the method accords with the condition formula A and L and Acosθ+B, so that when films with different sizes are scanned, the blocking condition caused by the different sizes of the films is not needed to be worried, the possible occurrence of scratch condition of the output films is avoided, the films are not needed to be frequently manually intervened and finished, and the working intensity of operators is reduced.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a cross-sectional view of an optical scanning assembly.
Fig. 3 is a side cross-sectional view of the present invention (film take-out assembly in film collection).
Fig. 4 is a side cross-sectional view of the present invention (film take-out assembly in a film take-out condition).
Reference numerals: the frame 10, the film take-out assembly 11, the film transport assembly 12, the film stage 13, the first film detection sensor 14, the optical substrate 16, the first cylindrical lens 28, the second cylindrical lens 22, the laser oscillator 15, the f- θ lens 20, the beam expander 17, the first mirror 18, the second mirror 23, the third mirror 25, the fourth mirror 27, the rotating polygon mirror 21, the shielding partition 24, the photosensor 26, the first transport unit 19, the second transport unit 31, the third transport unit 36, the first film 29, the light receiving unit 30, the first silicone driving roller 32, the optical scanning assembly 33, the film count sensor 34, the second silicone belt 35, the film inlet 37, the second film detection sensor 38, the second silicone driving roller 42, the second silicone driven roller 39, the driving motor 40, the first silicone belt 41, the first silicone driven roller 43, the third film detection sensor 44, the second tilt guide section 47, the third vertical guide section 45, the output guide 46, the control circuit 48, the hinge 49, the fourth tilt guide section 50, the first tilt guide section 51, the hinge pin 52, the hinge pin 54, the movable guide pin 54, the hinge pin 54.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Please refer to fig. 1-4: a film scanning apparatus includes a frame 10, a light receiving unit 30 disposed in the frame 10, an optical scanning assembly 33, a film conveying assembly 12, a film output guide structure 46, a film take-out assembly 11, and a control circuit 48, which are disposed in the frame 10, respectively.
The upper surface of the frame 10 is provided with a film carrier 13 corresponding to the film conveying assembly 12; the film carrier 13 is provided with a film inlet 37 corresponding to the film conveying assembly 12 on the side facing the film conveying assembly 12; the optical scanning assembly 33 is arranged below the film carrier 13, the light receiving unit 30 is arranged opposite to the optical scanning assembly 33, and the film conveying assembly 12 is arranged between the optical scanning assembly 33 and the light receiving unit 30; the film output guide structure 46 is correspondingly arranged at one end of the film conveying assembly 12 at the film outlet; the film taking-out component 11 is arranged at the bottom of the inner cavity of the frame 10 and corresponds to the film outlet side of the film output guide structure 46; the control circuit 48 is mounted at the bottom of the interior cavity of the housing 10.
The optical scanning assembly 33 includes an optical substrate 16, a first cylindrical lens 28, a second cylindrical lens 22, a laser oscillator 15, an f- θ lens 20, a beam expander 17, a first mirror 18, a second mirror 23, a third mirror 25, a fourth mirror 27, a rotating polygon mirror 21, a shielding partition 24, and a photosensor 26, which are respectively mounted on the optical substrate 16.
The first cylindrical lens 28 is fixedly disposed on the optical substrate 16 in the width direction of the optical substrate 16 by a lens mount and disposed toward one side of the light receiving unit 30; the length of the first cylindrical lens 28 corresponds to the length of the light receiving unit 30; the rotating polygon mirror 21 is centrally located on the optical substrate 16 and on the side remote from the first cylindrical lens 28. The f-theta lens 20 is centrally disposed on the optical substrate 16 and disposed toward the side of the rotating polygon mirror 21. The laser oscillator 15 is mounted between the first cylindrical lens 28 and the f-theta lens 20 and is disposed near the side edge of the optical substrate 16. A first reflecting mirror 18 and a second reflecting mirror 23 are respectively arranged on two opposite sides of the optical substrate 16, which are positioned at the position close to the edge and behind the rotary polygon mirror 21, on one side of the optical substrate 16 away from the first cylindrical lens 28, the first reflecting mirror 18 is arranged on the side corresponding to the laser oscillator 15, and a beam expander 17 is arranged between the laser oscillator 15 and the first reflecting mirror 18; the laser oscillator 15, the first mirror 18, and the beam expander 17 are aligned in a straight line. The photoelectric sensor 26 is arranged on the opposite side of the laser oscillator 15, a third reflecting mirror 25 is arranged between the photoelectric sensor 26 and the second reflecting mirror 23, and the photoelectric sensor 26, the second reflecting mirror 23 and the third reflecting mirror 25 are aligned in a straight line; the third reflecting mirror 25 is located between the first cylindrical lens 28 and the f-theta lens 20 and is disposed near the side of the f-theta lens 20. The second cylindrical lens 22 is disposed between the first mirror 18 and the second mirror 23 and is aligned with the first mirror 18 and the second mirror 23. The fourth reflecting mirror 27 is disposed between the first cylindrical lens 28 and the photosensor 26 and is disposed near the side of the first cylindrical lens 28. A shielding spacer 24 is provided between the third reflecting mirror 25 and the light reflecting direction of the rotating polygon mirror 21, and the shielding spacer 24 is provided near one side of the f-theta lens 20. The light receiving unit 30 includes a condenser and a photoelectric converter.
The laser beam generated in the laser oscillator 15 passes through the beam expander 17 to expand the beam diameter, and then the expanded beam is reflected and guided to the rotating polygon mirror 21 by the first mirror 18, the second cylindrical lens 22, and the second mirror 23, the third mirror 25, wherein the beam expander 17 serves to reduce the divergence angle of the incident laser beam and to increase the beam diameter, so that the beam expander 17 is necessary for narrowing the laser beam, which is very advantageous for the collimation of the beam and the focusing of the beam. The transmitted light beam reflected again by the third reflecting mirror 25 is transmitted to the rotary polygon mirror 21 via the shielding partition 24 that shields the unnecessary light, and then the laser beam reflected by the rotary polygon mirror 21 is rotationally oscillated on a horizontal plane. And then through f-theta lens 20 and first cylindrical lens 28 to the film. Thus, the film is scanned in a direction orthogonal to the conveying direction. The first cylindrical lens 28 and the second cylindrical lens 22 are optical systems for correcting the inclination of the reflecting mirror of the rotary polygon mirror 21, and the f- θ lens 20 is used for better focusing the laser beam on the film, so that the linear velocity of the incident light with constant angular velocity on the film is always kept constant, which is very beneficial to the quality of film image scanning and reading and the improvement of film scanning precision and resolution, and the quality of the gray scale of the image finally scanned and read is good. While the fourth mirror 27 reflects the laser beam onto the photosensor 26 as it oscillates to the extreme end of the scan area, causing it to acquire a signal for detecting the start of the main scan, and the film then starts scanning the read image.
The film conveying assembly 12 includes a first conveying unit 19, a second conveying unit 31, and a third conveying unit 36, and the first conveying unit 19, the second conveying unit 31, and the third conveying unit 36 are driven by a driving motor 40. The first conveying unit 19 is provided at one side of the film inlet; the third conveying unit 36 is disposed at one side of the sheet outlet; the second conveying unit 31 is disposed between the first conveying unit 19 and the third conveying unit 36. The first conveying unit 19 and the third conveying unit 36 each include a first silicone driving roller 32 and a first silicone driven roller 43, with a film conveying space formed between the first silicone driving roller 32 and the first silicone driven roller 43. The second conveying unit 31 includes a second silica gel driving roller 42 and a second silica gel driven roller 39 connected by a first silica gel belt 41, and a second silica gel driving roller 42 and a second silica gel driven roller 39 connected by a second silica gel belt 35; a film transfer space is formed between the first and second silicone belts 41 and 35; a scanning and reading area matched with the optical scanning component 33 and the light receiving unit 30 is formed between the sheet outlet of the second conveying unit 31 and the sheet inlet of the third conveying unit 36.
A first film detection sensor 14 mounted on the frame 10 is provided at one side of the film stage 13; a second film detection sensor 38 is installed between the first conveying unit 19 and the second conveying unit 31; a third film detection sensor 44 is mounted between the third transport unit 36 and the film output guide structure 46. The first film detection sensor 14, the second film detection sensor 38, and the third film detection sensor 44 are each provided as a photoelectric sensor. Through the structure, the whole control system can know the real-time position of the film and the dynamic change information thereof through detecting the sensor information, so that the intelligent control in the scanning process is realized in sequence, and the manual intervention detection is reduced.
In actual operation, the film is sequentially conveyed to the second conveying unit 31 by the first conveying unit 19, passes through the scanning and reading area from the second conveying unit 31 to the third conveying unit 36, and is scanned and read by the optical scanning assembly 33 under the cooperation of the second conveying unit 31 and the third conveying unit 36, so that the laser beams thereof sequentially scan the whole surface of the film. Wherein the second film detection sensor 38 is a film start end detection sensor and the third film detection sensor 44 is an end detection sensor, the information obtained by these detection sensors is transmitted to the control circuit 48. Since the second film detection sensor 38 is activated before the film enters the scan-and-read zone and the third film detection sensor 44 is activated after the film leaves the scan-and-read zone, meaning that the optical path scanning portion representing a sheet of film is completed, the control circuit 48 can learn the position of the film by detecting sensor information, which in turn enables intelligent control during scanning, reducing human intervention.
The film is scanned by the laser beam via the scanning and reading area, the transmitted light is received by the light receiving unit 30, the transmitted light is converted into an electric signal by the light signal, the electric signal is transmitted to the control circuit 48, the control circuit 48 receives the signals from the parts, after executing various computer data processing, the scanned and read data are transmitted to the information processing device outside the computer, various control signals are exchanged, finally a visual image is formed, and then the visual image is stored, so that the intelligent control of film scanning is realized.
The film conveying assembly 12 adopts a high-quality silica gel roller shaft and a silica gel belt to carry so as to ensure that the film cannot be scratched in the conveying process.
The film output guide structure 46 comprises a first inclined guide section 51, a second inclined guide section 47, a third vertical guide section 45 and a fourth inclined guide section 50 which are integrally bent and formed; the first inclined guide section 51 is arranged towards the sheet outlet side of the third conveying unit 36; the second inclined guide section 47 is disposed obliquely downward; the first inclined guide section 51 is inclined toward the light receiving unit 30 side; the fourth inclined guide section 50 is arranged obliquely toward a side away from the light receiving unit 30. A film count sensor 34 is disposed between the film output guide 46 and the movable guide 56. The film output guide 46 is fixed to the frame, and the scanned film is fed to the film output guide 46 via the third feeding unit 36, automatically counted by the film count sensor 34, and finally sequentially stacked on the movable guide 56 of the film take-out assembly 11.
The film taking-out assembly 11 comprises an electric push rod 52, a pin shaft 53, a hinged movable joint 54 and a movable guide plate 56; the electric push rod 52 is fixedly arranged at the bottom of the inner cavity of the frame 10 through the mounting bracket, the power output end of the electric push rod 52 is connected with the hinged movable joint 54 through the pin shaft 53, and the movable guide plate 56 is arranged on the hinged movable joint 54, so that the movable type electric push rod is free to move, the phenomenon of clamping stagnation is avoided, and the running performance of the whole device is improved. The articulated movable joint 54 is arranged towards one side of the fourth inclined guide section 50; one side of the movable guide plate 56 is hinged to the fourth inclined guide section 50 by a hinge 49. A baffle 57 is integrally formed on the side of the movable guide plate 56 remote from the fourth inclined guide section 50.
It meets the condition a.ltoreq.l, where a is the length of the first film 29 and L is the length of the movable guide 56.
It meets the condition A.ltoreq.L.ltoreq.Acosθ+B, where A is the length of the first film 29, L is the length of the movable guide plate 56, B is the length of the second film 55, θ is the angle between the movable guide plate 56 and the second inclined guide section 47 in the initial slide state, θ is 15.ltoreq.θ.ltoreq.45 °, i.e., A.ltoreq.L, and L-B.ltoreq.Acosθ.
One side of the movable guide plate 56 is hinged with the fourth inclined guide section 50 through a hinge 49, and when the film counting sensor 34 automatically counts the films stacked on the movable guide plate 56 and does not reach the preset film quantity of the control circuit 48, the movable guide plate 56 is driven by the electric push rod 52 to lean against the state of downward inclination of one side of the hinge 49; the film slides from the film output guide 46 onto the movable guide 56 by its own weight, and since the movable guide 56 is inclined downward toward the side of the hinge 49, the film falling into the movable guide 56 continues to move toward the fourth inclined guide section 50 by its own weight and finally comes into contact with the side of the fourth inclined guide section 50, so that the operation is repeated to stack and store the films in sequence.
When the second film 55 on the movable guide plate 56 is a small-size film and then the first film 29 is a large-size film, the front end of the first film 29 slides onto the second film 55 and then slides onto the movable guide plate 56, the rear end of the first film 29 falls down by the dead weight of the film, and then the rear end of the first film 29 moves to one side of the fourth inclined guide section 50 and is attached to the side surface of the fourth inclined guide section 50 under the action of self gravity. Therefore, even when films with different specifications and sizes are scanned and alternately enter the film taking-out assembly 11, the phenomenon of blockage after film scanning is avoided like the traditional scanning device, and the films output by the device can be smoothly output and stored on the movable guide plate 56, so that the device does not need operators to check the films in the film taking-out assembly 11 and perform manual intervention, finishing and other works, the labor intensity of the operators can be greatly reduced, and further the films are effectively prevented from being scratched and damaged.
When the film is stacked to a preset number and needs to be taken, the film counting sensor 34 feeds information back to the control circuit 48, and the control circuit 48 controls the electric push rod 52 to perform contraction action under the compliance of instructions, so that the movable guide plate 56 is driven to incline downwards to the side far away from the fourth inclined guide section 50, and the films stacked on the movable guide plate 56 slide to one side of the baffle 57 through self gravity and are in contact with the baffle 57, so that smooth output of the films is facilitated, blockage is avoided, and final taking out of the stacked films after scanning is finished is facilitated.
The above examples illustrate only one embodiment of the invention, which is described in more detail and is not to be construed as limiting the scope of the invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (10)
1. A film scanning device comprising a frame (10) and a light receiving unit (30) arranged in said frame (10), characterized in that: the device also comprises an optical scanning assembly (33), a film conveying assembly (12), a film output guiding structure (46), a film taking-out assembly (11) and a control circuit (48) which are respectively arranged in the frame (10);
the upper surface of the frame (10) is provided with a film carrier (13) corresponding to the film conveying assembly (12); a film inlet (37) corresponding to the film conveying assembly (12) is arranged on one side of the film carrying platform (13) close to the film conveying assembly (12); the optical scanning assembly (33) is arranged below the film carrying platform (13), the light receiving unit (30) is arranged opposite to the optical scanning assembly (33), and the film conveying assembly (12) is arranged between the optical scanning assembly (33) and the light receiving unit (30); the film output guide structure (46) is correspondingly arranged at one end of the film conveying assembly (12) positioned at the film outlet; the film taking-out assembly (11) is arranged at the bottom of the inner cavity of the rack (10) and corresponds to the film outlet side of the film output guide structure (46); the control circuit (48) is arranged at the bottom of the inner cavity of the stand (10);
the optical scanning assembly (33) comprises an optical substrate (16), a first cylindrical lens (28), a second cylindrical lens (22), a laser oscillator (15), an f-theta lens (20), a beam expander (17), a first reflecting mirror (18), a second reflecting mirror (23), a third reflecting mirror (25), a fourth reflecting mirror (27), a rotary polygon prism (21), a shielding baffle plate (24) and a photoelectric sensor (26) which are respectively and correspondingly arranged on the optical substrate (16);
the first cylindrical lens (28) is fixedly arranged on the optical substrate (16) along the width direction of the optical substrate (16) through a lens mounting frame and is arranged on one side of the light receiving unit (30); the length of the first cylindrical lens (28) corresponds to the length of the light receiving unit (30);
the rotary polygon mirror (21) is centrally disposed on the optical substrate (16) and on a side remote from the first cylindrical lens (28);
the f-theta lens (20) is centrally arranged on the optical substrate (16) and is arranged towards one side of the rotary polygon prism (21);
the laser oscillator (15) is mounted between the first cylindrical lens (28) and the f-theta lens (20) and is disposed near a side edge of the optical substrate (16);
a first reflecting mirror (18) and a second reflecting mirror (23) are respectively arranged on two opposite sides of the optical substrate (16) which are far away from one side of the first cylindrical lens (28) and close to the edge and are positioned behind the rotary polygon prism (21), the first reflecting mirror (18) is arranged on one side corresponding to the laser oscillator (15), and a beam expander (17) is arranged between the laser oscillator (15) and the first reflecting mirror (18); the laser oscillator (15), the first reflecting mirror (18) and the beam expander (17) are aligned in a straight line;
the photoelectric sensor (26) is arranged on one side opposite to the laser oscillator (15), a third reflecting mirror (25) is arranged between the photoelectric sensor (26) and the second reflecting mirror (23), and the photoelectric sensor (26), the second reflecting mirror (23) and the third reflecting mirror (25) are aligned in a straight line; the third reflecting mirror (25) is positioned between the first cylindrical lens (28) and the f-theta lens (20) and is disposed near a position on one side of the f-theta lens (20);
the second cylindrical lens (22) is arranged between the first reflecting mirror (18) and the second reflecting mirror (23) and is aligned with the first reflecting mirror (18) and the second reflecting mirror (23) in a straight line;
the fourth reflecting mirror (27) is arranged between the first cylindrical lens (28) and the photoelectric sensor (26) and is arranged close to one side of the first cylindrical lens (28);
a shielding baffle plate (24) is arranged between the third reflecting mirror (25) and the light reflecting direction of the rotary polygon prism (21), and the shielding baffle plate (24) is arranged at one side close to the f-theta lens (20).
2. The film scanning apparatus of claim 1, wherein: the film conveying assembly (12) comprises a first conveying unit (19), a second conveying unit (31) and a third conveying unit (36);
the first conveying unit (19) is arranged at one side of the film inlet; the third conveying unit (36) is arranged at one side of the sheet outlet; the second conveying unit (31) is arranged between the first conveying unit (19) and the third conveying unit (36);
the first conveying unit (19) and the third conveying unit (36) comprise a first silica gel driving roller (32) and a first silica gel driven roller (43), and a film conveying space is formed between the first silica gel driving roller (32) and the first silica gel driven roller (43);
the second conveying unit (31) comprises a second silica gel driving roller (42) and a second silica gel driven roller (39) which are connected through a first silica gel belt (41), and a second silica gel driving roller (42) and a second silica gel driven roller (39) which are connected through a second silica gel belt (35); -a film transport space is formed between the first (41) and the second (35) silicone belts; a scanning reading area matched with the optical scanning assembly (33) and the light receiving unit (30) is formed between the sheet outlet of the second conveying unit (31) and the sheet inlet of the third conveying unit (36).
3. A film scanning apparatus as recited in claim 2, wherein: the film output guide structure (46) comprises a first inclined guide section (51), a second inclined guide section (47), a third vertical guide section (45) and a fourth inclined guide section (50) which are integrally bent and formed; the first inclined guide section (51) is arranged close to one side of the sheet outlet of the third conveying unit (36); the second inclined guide section (47) is arranged obliquely downwards; the first inclined guide section (51) is inclined toward the light receiving unit (30); the fourth inclined guide section (50) is inclined toward a side away from the light receiving unit (30).
4. A film scanning apparatus as recited in claim 3, wherein: the film taking-out assembly (11) comprises an electric push rod (52), a pin shaft (53), a hinged movable joint (54) and a movable guide plate (56); the electric push rod (52) is fixedly arranged at the bottom of the inner cavity of the frame (10) through a mounting bracket, the power output end of the electric push rod (52) is connected with the hinged movable joint (54) through a pin shaft (53), and the movable guide plate (56) is arranged on the hinged movable joint (54); the hinged movable joint (54) is arranged towards one side of the fourth inclined guide section (50); one side of the movable guide plate (56) is hinged with the fourth inclined guide section (50) through a hinge (49).
5. The film scanning apparatus of claim 4, wherein: a baffle (57) is integrally formed on one side of the movable guide plate (56) away from the fourth inclined guide section (50).
6. A film scanning apparatus as recited in any of claims 2-5, wherein: a first film detection sensor (14) arranged on the frame (10) is arranged on one side of the film carrier (13); a second film detection sensor (38) is arranged between the first conveying unit (19) and the second conveying unit (31); a third film detection sensor (44) is mounted between the third transport unit (36) and the film output guide structure (46).
7. The film scanning apparatus of claim 4, wherein: a film count sensor (34) is disposed between the film output guide (46) and the movable guide (56).
8. The film scanning apparatus of claim 1, wherein: the light receiving unit (30) includes a condenser and a photoelectric converter.
9. The film scanning apparatus of claim 4, wherein: the film is in accordance with a condition A which is less than or equal to L, wherein A is the length of the first film (29), and L is the length of the movable guide plate (56).
10. The film scanning apparatus of claim 9, wherein: the film is in accordance with the condition A which is less than or equal to L which is less than or equal to Acosθ+B, wherein A is the length of the first film (29), L is the length of the movable guide plate (56), B is the length of the second film (55), θ is the included angle between the movable guide plate (56) and the second inclined guide section (47) when the movable guide plate (56) is in the initial slide state, and θ is more than or equal to 15 ° and less than or equal to 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025610.1A CN114374771B (en) | 2022-01-11 | 2022-01-11 | Film scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025610.1A CN114374771B (en) | 2022-01-11 | 2022-01-11 | Film scanning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114374771A CN114374771A (en) | 2022-04-19 |
| CN114374771B true CN114374771B (en) | 2023-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210025610.1A Active CN114374771B (en) | 2022-01-11 | 2022-01-11 | Film scanning device |
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| Country | Link |
|---|---|
| CN (1) | CN114374771B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3013627U (en) * | 1995-01-13 | 1995-07-18 | 旭光学工業株式会社 | Scanning optics |
| CN1595122A (en) * | 2003-09-08 | 2005-03-16 | 诺日士钢机株式会社 | Film image processing apparatus and film image processing method |
| JP2008265348A (en) * | 2008-06-02 | 2008-11-06 | Toshiba Corp | Beam light scanning device and image formation apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4806717B2 (en) * | 2009-06-25 | 2011-11-02 | 株式会社沖データ | Image processing system |
-
2022
- 2022-01-11 CN CN202210025610.1A patent/CN114374771B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3013627U (en) * | 1995-01-13 | 1995-07-18 | 旭光学工業株式会社 | Scanning optics |
| CN1595122A (en) * | 2003-09-08 | 2005-03-16 | 诺日士钢机株式会社 | Film image processing apparatus and film image processing method |
| JP2008265348A (en) * | 2008-06-02 | 2008-11-06 | Toshiba Corp | Beam light scanning device and image formation apparatus |
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| Publication number | Publication date |
|---|---|
| CN114374771A (en) | 2022-04-19 |
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