CN102279512A

CN102279512A - Device for accurately controlling film to advance for microfilm camera

Info

Publication number: CN102279512A
Application number: CN2011101270061A
Authority: CN
Inventors: 靳张铝; 李迎; 孙小金; 刘喜章
Original assignee: Tianjin Aiante Innovation Technology Co Ltd
Current assignee: Tianjin Aiante Innovation Technology Co Ltd
Priority date: 2011-05-17
Filing date: 2011-05-17
Publication date: 2011-12-14
Anticipated expiration: 2031-05-17
Also published as: CN102279512B

Abstract

The invention discloses a device for accurately controlling a film to advance. The device comprises a mechanism pedestal and a mechanism top cover, wherein an original film box, a film exposure area, a precise film advance driving mechanism, a film taking buffer area and a film taking box are sequentially arranged in the pedestal; a rotor wheel group is arranged in the exposure area; the upper wheel of the rotor wheel group is fixed in the mechanism top cover; the lower wheel of the rotor wheel group is fixed to the pedestal; the precise film advance driving mechanism comprises a stepping motor, a worm and a worm wheel which are arranged on the pedestal; the worm is driven to rotate by the stepping motor; the worm wheel rotates synchronously; the worm wheel and a driving wheel are coaxially arranged; a film pressing wheel group is arranged in the semi-circumferential surface of the mechanism top cover which is positioned above the driving wheel; the film taking box and a film taking detecting switch are arranged in the film taking buffer area; a film taking motor is arranged in the film taking box; and the stepping motor, the film taking detecting switch and the film taking motor are controlled by a control system singlechip. By using the device for accurately controlling the film to advance, the entire split image can be exposed to proper positions on the film for several times, and the image which is exposed for several times can be spliced in a seamless mode.

Description

A kind of accurate control film moving device of microfilm recorder

Technical field

The present invention relates to a kind of mechanical ﹠ electrical technology that adopts and realize precisely controlling the device that film is advanced, particularly relate to and be used for the accurate control film moving device that computer picture outputs to microfilm recorder.

Background technology

The technical approach that uses the digital picture microfilm recorder in the market is laser scanning methods exposure image on microfilm, therefore exist technical sophistication, equipment cost height, the critical component life-span is short, and problems such as maintenance cost height have hindered the penetration and promotion application.

Adopt LCD and LCOS liquid crystal imaging technology exposure image on microfilm, technology maturation, advantages such as cost is low, the life-span is long are outstanding, but, key issue is current monolithic LCD panel as according to conventional use-pattern, the miniature resolution technique index to the film pick-up machine equipment of the resolution index of piece image single exposure imaging and digital picture has bigger gap, therefore, adopt an existing LCD plate or LCOS plate once to show the method for exposure, can't realize the technical indicator of digital picture microfilm recorder exposure image.

Summary of the invention

Technical matters to be solved by this invention is, overcomes the deficiencies in the prior art, the device that provides a kind of accurate control film to advance for the technical indicator that realizes digital picture microfilm recorder exposure image.

The accurate control film moving device of a kind of microfilm recorder of the present invention, comprise mechanism base and mechanism's loam cake, set gradually in the base virgin rubber film magazine, exposure district, film advance precise-motion mechanism, buffer zone and receiving can take up, described exposure region is provided with the rotation wheels, the wheel of going up that rotates wheels is fixed in mechanism's loam cake, and the lower whorl that rotates wheels is fixed in base; The film precise-motion mechanism of advancing comprises that the stepper motor that is installed on base, worm and worm wheel form; The rotation of step motor drive worm screw, the worm gear that is closely connected with worm screw rotates synchronously, and worm gear and the coaxial setting of driving wheel are provided with film in mechanism's loam cake half cycle face of driving wheel top and compress wheels; Described taking up is provided with the case that takes up in the buffer zone, and the case that the takes up setting suitable for reading detector switch that takes up is provided with the motor that takes up in the described receiving can, the control system single-chip microcomputer respectively the control step motor, the detector switch and the motor that takes up take up.

Described rotation wheels rotate on the wheels wheel and back by wheel on the preceding rotation wheels, preceding rotation wheels lower whorl, back and rotate the wheels lower whorl and forms, vacate the film image exposure region between two groups of rotation wheels.

Described film compresses wheels and is made up of front jocket wheel, back guide wheel, preceding pinch roller, middle pinch roller and back pinch roller, front jocket wheel and back guide wheel are individually fixed in the front-end and back-end of mechanism's loam cake half cycle face, and preceding pinch roller, middle pinch roller and back pinch roller are fixed in the cambered surface of mechanism's loam cake half cycle face successively.

Described stepper motor is connected by elastic coupling with worm screw.

Use the present invention that the advance major advantage of accurate operation control of film is had: the control system single-chip microcomputer accurately rotational angle of control step motor is realized the purpose of film precision linear running, worm and gear quality of fit height through accurate bedding-in, it is comfortable that stepper motor and worm screw are connected motion by the high-quality elastic coupling of import, backlash is little, transmission is synchronous and noise is little reliable and stable, implementation is simple, life-span is long, cost is low, the entire image multiple exposure that can guarantee to break realizes that the image after the multiple exposure is seamless spliced to the suitable position of film.

The present invention precisely advances by adopting mechanical ﹠ electrical technology control film, the entire image of one panel height resolution is split into several images, every block of image is identical with the display resolution of LCD plate or LCOS plate, every block of image that gradation will split is delivered on LCD plate or the LCOS plate, control exposes to the accurate position of film, finish the entire image multiple exposure to film, realize seamless spliced perfect effect, make it satisfy the requirement of digital picture microfilm recorder image high-resolution technical indicator.

Description of drawings

Fig. 1 is a schematic perspective view of the present invention;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is exposure plot structure figure;

Fig. 4 is the film precise-motion mechanism side view of advancing;

Fig. 5 is the film precise-motion mechanism front view of advancing;

Fig. 6 is the buffer zone work synoptic diagram that takes up.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, details are as follows to embodiment, structure, feature:

Shown in Fig. 1 and 2, apparatus of the present invention comprise virgin rubber film magazine 1, exposure district 2, film advance precise-motion mechanism 3, the buffer zone 4 that takes up, receiving can 5, mechanism's loam cake 6 and film walking mechanism base 7, wherein virgin rubber film magazine 1 is airtight agreeing without prior consultation that the identical metal material of structure is made with receiving can 5, can guarantee that film is at interior safety of depositing and light leak not, before the system works, virgin rubber film magazine 1 and the receiving can 5 that installs microfilm is installed to the relevant position.Virgin rubber film magazine 1 is as the magazine of the preceding film storage of exposure, and smooth at any time conveying film is to exposure region 2.

Fig. 3 is the structural representation in exposure district, rotating wheels is made up of preceding rotation wheels and back rotation wheels, before rotate wheels by take

turns

21,22 on the preceding rotation wheels, 23,24 4 rubber rollers of preceding rotation wheels lower whorl form, the back rotate wheels by the back rotate take turns on the

wheels

25,26 and the back rotate 27,28 4 rubber rollers of wheels lower whorl and form, it is smooth when exposure to be responsible for film, the film of vacating between two groups of rotor wheels is the image exposure district, under be camera lens, digital picture is by camera lens exposure image on film.The preceding

wheel

25,26 of going up of going up

wheel

21,22 and back rotation wheels that rotates wheels is fixed on the loam cake 6, and wheel has the spring of downward direction on each, when lid during tight loam cake be installed in film walking mechanism base 7 on the

lower whorl

23,24 and the

lower whorl

27,28 that wheels are rotated in the back of preceding rotation wheels mutual corresponding, push down film gently, after image after each camera lens will split is delivered to exposure region and is finished single exposure, next time exposure is carried out in the position that it is suitable that film advances, and film was smooth when this structure guaranteed that each film is advanced exposure.

Fig. 4 and Fig. 5 are the advance structures of precise-motion mechanism of film, and the film precise-motion mechanism of advancing is an accurate rotation platform, comprises stepper motor 31, worm screw 32, worm gear 33.The control system single-chip microcomputer can accurate control step motor rotation, stepper motor 31 directly drives worm screw 32 and realizes the synchronous precise rotation with the worm gear 33 that is closely connected, worm gear 33 is same axle with driving wheel 34, rotate synchronously, front jocket wheel 35, back guide wheel 36 is responsible for the film guide ring on the upper half of driving wheel 34, preceding pinch roller 37, middle pinch roller 38, back pinch roller 39 is equipped with spring, gently being pressed in the film top makes film and driving wheel 34 form the tight rotation synchronously that contacts, guarantee that film does not have under the slipping state synchronously and 34 rotation the accurate straightaway of pulling film.In order to guarantee the precision operation of film, worm gear 33 is positioned on the same axle center with driving wheel 34.System is by the accurate anglec of rotation of control step motor 31 of instruction, can realize rotating 0.00125 ° precision by segmentation, realizes spurring the film Precision Linear Moving.Preceding pinch roller 37, middle pinch roller 38, back pinch roller 39 are equipped with light spring of pressing downwards, front jocket wheel 35, back guide wheel 36, preceding pinch roller 37,

middle pinch roller

38 and 39 5 wheels of back pinch roller are installed on the loam cake 6 of equipment, when work, loam cake built the back guarantee before pinch roller 37, middle pinch roller 38 and back pinch roller 39 gently be pressed on the film and the driving wheel 34 synchronous passive rotation that closely cooperates.

Fig. 6 is the course of work of buffer zone of taking up, finish the automatic lowering of film after the exposure in the space of the case 40 that takes up, after 20 entire image of control system Single-chip Controlling exposure, the motor 51 that takes up of receiving can 5 begins to rotate automatically, film is finished in exposure temporary in the case that takes up to be received in the receiving can, touch the detector switch 41 that takes up that is located at buffer zone 4 settings when film is about to tighten up, the signal that will stop to take up is sent the control system single-chip microcomputer back to, and the motor that takes up quits work.

Whole process reciprocation cycle, after whole volume film is finished 500 entire image, the motor 51 of control system Single-chip Controlling receiving can 5 rotates and begins to regain run-out, and this moment, the buffer zone film tightened up, and film detector switch 41 states are closed, when 41 states when opening, the expression film harvests, and control system Single Chip Microcomputer (SCM) system control motor 51 stops operating, and whole exposure is finished, open equipment loam cake 6, take out receiving can 5 and carry out the flushing of film.

Above-mentioned is illustrative rather than determinate with reference to the detailed description of embodiment to this structure invention, therefore in the variation and the modification that do not break away under the general plotting of the present invention, should belong within protection scope of the present invention.

Claims

1. the accurate control film moving device of a microfilm recorder, it is characterized in that, comprise mechanism base and mechanism's loam cake, set gradually in the base virgin rubber film magazine, exposure district, film advance precise-motion mechanism, buffer zone and receiving can take up, described exposure region is provided with the rotation wheels, the wheel of going up that rotates wheels is fixed in mechanism's loam cake, and the lower whorl that rotates wheels is fixed in base; The film precise-motion mechanism of advancing comprises that the stepper motor that is installed on base, worm and worm wheel form; The rotation of step motor drive worm screw, the worm gear that is closely connected with worm screw rotates synchronously, and worm gear and the coaxial setting of driving wheel are provided with film in mechanism's loam cake half cycle face of driving wheel top and compress wheels; Described taking up is provided with the case that takes up in the buffer zone, and the case that the takes up setting suitable for reading detector switch that takes up is provided with the motor that takes up in the described receiving can, the control system single-chip microcomputer respectively the control step motor, the detector switch and the motor that takes up take up.

2. the accurate control film moving device of microfilm recorder according to claim 1, it is characterized in that, described rotation wheels rotate on the wheels wheel and back by wheel on the preceding rotation wheels, preceding rotation wheels lower whorl, back and rotate the wheels lower whorl and forms, vacate the film image exposure region between two groups of rotation wheels.

3. the accurate control film moving device of microfilm recorder according to claim 1, it is characterized in that, described film compresses wheels and is made up of front jocket wheel, back guide wheel, preceding pinch roller, middle pinch roller and back pinch roller, front jocket wheel and back guide wheel are individually fixed in the front-end and back-end of mechanism's loam cake half cycle face, and preceding pinch roller, middle pinch roller and back pinch roller are fixed in the cambered surface of mechanism's loam cake half cycle face successively.

4. the accurate control film moving device of microfilm recorder according to claim 1 is characterized in that described stepper motor is connected by elastic coupling with worm screw.