CN2629132Y - Compensating paper-rubbing pressure regulator - Google Patents
Compensating paper-rubbing pressure regulator Download PDFInfo
- Publication number
- CN2629132Y CN2629132Y CN 03256805 CN03256805U CN2629132Y CN 2629132 Y CN2629132 Y CN 2629132Y CN 03256805 CN03256805 CN 03256805 CN 03256805 U CN03256805 U CN 03256805U CN 2629132 Y CN2629132 Y CN 2629132Y
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- arm
- paper
- swing arm
- optocoupler
- hands
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- Expired - Lifetime
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Abstract
The utility model relates to a compensation type paper pickup pressure regulating device for the cursor reader or the intelligent character reader, which is disposed between the paper feeding device and the scanning device in the reader and comprises substantially a swing arm, a paper pickup tape, a lever and a step motor. The swing arm shaft is positioned on the upper part of the said device, one end of the swing arm is fixed on the swing arm shaft, a paper pickup block is fixed on the other end of the swing arm, the upper side of the paper pickup block is close to the paper pickup tape which is fixed at the inlet of the scanning device of the reader. The lever is fixed below the swing arm via the lever shaft, one end of the lever contacts with the lower side of the swing arm end to which the paper pickup block is fixed, an optical coupler arm and a spring light shading frame is positioned on the other end of the lever, an optical coupler, which is used in matching with the spring light shading frame, is positioned on one end of the optical coupler arm, the voltage output of the optical coupler is connected with the controlling part of the step motor. The said device has the advantages of automatic paper pickup pressure compensation, and control over the paper pickup pressure by means of the controlling part of the step motor.
Description
Technical field
The utility model relates to a kind of stranding letterweight apparatus for adjusting force that is used for optical character reader (OCR) or intelligent character reader, refers to a kind of stranding letterweight apparatus for adjusting force that can compensate the deficiency of rubbing letterweight power with the hands and can control the size that has that it's too late of rubbing letterweight power with the hands especially.
Background technology
At present, optical character reader (OCR) or the intelligent character reader that generally uses mainly comprises parts such as paper-advance unit, paper twisting device, scanister and sheet delivery.The exit portion of paper-advance unit is connected with paper twisting device, and the exit portion of paper twisting device is connected to the inlet of scanister, and the outlet of scanister is connected with sheet delivery.In use, release is placed in the paper-advance unit, enters the sweep test of reading machine through paper twisting device, enters in the delivering paper storehouse by sheet delivery behind the end of scan again.
At present, the paper twisting device of known optical character reader (OCR) or intelligent character reader generally is to adopt the adjusting screw thread to promote the rubber friction piece to realize rubbing with the hands the paper action, therefore, needs rubber friction piece manual adjustment can be used to the correct position near the stranding paper tape.When the thickness of release increases, constant as the rubber friction piece and the slit of rubbing with the hands between the paper tape, the phenomenon of paperboard then appears easily; When the thickness attenuation of release or when rubbing paper rubber friction piece with the hands wearing and tearing taking place, rubber friction piece and the slit phase strain of rubbing with the hands between the paper tape are big, have release by the time have overlapping phenomenon and take place.When above-mentioned situation takes place when, in order to guarantee to rub with the hands accurately carrying out of paper, just need the manual position that readjusts the rubber friction piece, this has just caused in the use, particularly go over examination papers in college entrance examination, census etc. needs to handle the occasion of bulk information card at short notice, can influence work efficiency.In addition, because said apparatus in use, after the front end of release passes through paper-rubbing mechanism, rub paper tape with the hands with regard to stop motion, and release causes stronger resistance so that rub letterweight power with the hands to release as yet not all by paper twisting device at this moment, has caused quickening the wearing and tearing of release.
Summary of the invention
Often need manual adjustment in order to overcome existing stranding letterweight apparatus for adjusting force, and the deficiency big to the release resistance, the purpose of this utility model provides a kind of compensation stranding letterweight apparatus for adjusting force, this device can compensate the deficiency of rubbing letterweight power with the hands automatically, and can partly control the size that has that it's too late of rubbing letterweight power with the hands by step motor control.
To achieve these goals, the utility model is taked following technical scheme: a kind of compensation stranding letterweight apparatus for adjusting force, and it is arranged in the reading machine, and between paper-advance unit and scanister, it mainly comprises swing arm, rubs paper tape, lever and stepper motor with the hands.
The top of described compensation stranding letterweight apparatus for adjusting force is provided with arm shaft, and an end of swing arm is fixed on the arm shaft, is fixed with above the other end of swing arm to rub the paper piece with the hands, and it is approaching with the stranding paper tape that is fixed on reading machine scanister porch to rub the top of paper piece with the hands.
Described lever is by the fixing below of swing arm of lever shaft, the one end is provided with following contact of rubbing paper piece one end with the hands with swing arm, another endlap is provided with optocoupler arm and spring catch mating plate, end at the optocoupler arm is provided with optocoupler, optocoupler and spring catch mating plate are used, and the voltage output end of optocoupler partly is connected with Stepping Motor Control.
Described stepper motor is positioned at the bottom of this device, which is provided with the motor pivoted arm, and this motor pivoted arm is provided with the light barrier driving lever, and the light barrier driving lever contacts with the spring catch mating plate.
Described stepper motor is provided with the travel switch that is used for control step motor turned position, and the trip switch is arranged on the bottom of device, is positioned at the side that the optocoupler arm is different from the spring catch mating plate, is positioned at same plane with the movement locus of optocoupler arm.
A kind of compensation program control stranding letterweight apparatus for adjusting force, its power is provided by stepper motor, and the motor pivoted arm of installing on step motor shaft promotes light barrier, drives lever motion, can obtain comparatively suitable ratio of gear by lever.The other end of lever promotes swing arm, makes the stranding paper block rubber that is installed in the swing arm obtain moving up and down of near linear, makes stranding paper piece can realize being close to and leaving the motion that the top is rubbed paper tape with the hands.The force transducer that is made of optocoupler and light barrier has been installed at the lever input end, when the motor pivoted arm of installing on the motor shaft reaches certain value to the pressure of lever, because the variation of optocoupler output voltage, the signal that is input to the Stepping Motor Control part also changes thereupon, by the rotation of this control section may command stepper motor, reach the effect that control is rubbed letterweight power size with the hands and had or not.
Compared with prior art, the beneficial effects of the utility model are, compensate automatically rubbing paper piece wearing and tearing meeting with the hands when rubbing paper with the hands finishing, and can be controlled by the program of step motor control part rubbing letterweight power with the hands.When rubbing paper piece generation wearing and tearing with the hands, under the promotion of leverage, rubbing the paper piece with the hands can continue upwards, be adjacent to the stranding paper tape, at this moment, certain variation can take place in the position of rubbing paper swing arm, lever with the hands, but rubs letterweight power with the hands because Stepping Motor Control is partly controlled by transmission levers input end force-bearing situation, thereby can not influence the stranding paper effect of rubbing with the hands between paper block rubber and the stranding paper tape.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 rubs letterweight power governor motion synoptic diagram with the hands for the utility model
Embodiment
As shown in Figure 1, a kind of compensation stranding letterweight apparatus for adjusting force is arranged in the reading machine, and between paper-advance unit and scanister, it mainly comprises swing arm 1, rubs paper tape 12, lever 4 and stepper motor 10 with the hands;
The top of described compensation stranding letterweight apparatus for adjusting force is provided with arm shaft 2, one end of swing arm 1 is fixed on the arm shaft 2, be fixed with above the other end of swing arm 1 and rub paper piece 3 with the hands, it is approaching with the stranding paper tape 12 that is fixed on reading machine scanister porch to rub the top of paper piece 3 with the hands;
Described lever 4 passes through the fixedly below of swing arm 1 of lever shaft 5, the one end is provided with following contact of rubbing paper piece one end with the hands with swing arm 1, another endlap is provided with optocoupler arm 7 and spring catch mating plate 8, end at optocoupler arm 7 is provided with optocoupler 6, optocoupler 6 is used with spring catch mating plate 8, and the voltage output end of optocoupler 6 partly links to each other with Stepping Motor Control;
Described stepper motor 10 is positioned at the bottom of this device, which is provided with motor pivoted arm 9, and this motor pivoted arm 9 is provided with light barrier driving lever 11, and light barrier driving lever 11 contacts with spring catch mating plate 8.
Described stepper motor 10 is provided with the travel switch 13 that is used for control step motor turned position, and the trip switch is arranged on the bottom of device, is positioned at the side that optocoupler arm 7 is different from spring catch mating plate 8, is positioned at same plane with the movement locus of optocoupler arm 7.
As shown in Figure 1, during reading machine work, Stepping Motor Control part control step motor 10 rotates counterclockwise, and stepper motor 10 drives motor pivoted arm 9 and rotates counterclockwise, and the light barrier driving lever 11 on the motor pivoted arm 9 rotates counterclockwise thereupon, the spring catch mating plate 8 that promotes contact with it rotates counterclockwise, drive lever 4 and rotate counterclockwise around lever shaft 5, under the effect of lever 4, swing arm 1 is by the jack-up that makes progress, the stranding paper piece 3 that be fixed in the swing arm 1 this moment will move upward, near rubbing paper tape 12 with the hands.After stranding paper piece 3 touched stranding paper tape 12, owing to be subjected to rubbing with the hands the pressure of paper tape 12, lever 4 stopped operating.At this moment, if continuing to rotate counterclockwise 11 pairs of spring catch mating plates 8 of light barrier driving lever that will drive on the motor pivoted arm 9, stepper motor 10 exerts pressure, spring catch mating plate 8 is stressed will be crooked gradually, blocks the part light path of optocoupler 6, and the output voltage of optocoupler 6 is changed; The pressure of rubbing paper piece 3 simultaneously with the hands and rubbing with the hands between the paper tape 12 also can increase gradually.When the 8 stressed bendings of spring catch mating plate, when just whole light paths of optocoupler 6 being blocked, optocoupler 6 outputs one magnitude of voltage, by control section, the action of control step motor is regulated and is rubbed paper piece 3 with the hands and rub pressure between the paper tape 12 with the hands with this magnitude of voltage.At this moment, the light lotus root 6 of installing on spring catch mating plate 8 and the light lotus root arm 7 has formed a force transducer, spring catch mating plate 8 is because of stressed difference degree of crook difference, block the how much also just different of optocoupler light path, cause the output voltage of optocoupler to change, when the output voltage of optocoupler was imported the step motor control part, control section control step motor rotated, thereby the pressure between paper piece 3 and the stranding paper tape 12 is rubbed in control with the hands.
Equally, under the control of stepper motor 10 at control section, when clockwise rotating, the pressure of rubbing with the hands between paper piece 3 and the stranding paper tape 12 can reduce gradually, until disengagement.
Because when stepper motor 10 drives the 8 drive leverage work of motor pivoted arm 9 promotion spring catch mating plates, swing arm 1 moves to certain position, stranding paper piece 3 on it is promptly rubbed with the hands paper tape 12 and is blocked, the position of swing arm is defined, at this moment, the pressure of rubbing with the hands between paper piece and the stranding paper tape is the stranding paper working pressure that needs control.When rubbing the wearing and tearing of paper piece 3 working surfaces with the hands, the working position of swing arm 1, lever 4, motor pivoted arm 9 can deflect, but since the optocoupler of installing on spring catch mating plate 8 and the light lotus root arm 76 form force transducer fed back is acting force between motor pivoted arm 9 and 4 two driving members of lever, be not subjected to owing to rub the influence of system's deflection of paper piece 3 working surfaces wearing and tearing generation with the hands.So when the wearing and tearing of stranding paper piece 3 working surfaces, rub paper piece 3 with the hands and can show as the compensate for wear amount that moves up, the working pressure between maintenance and the stranding paper tape 12 has realized the compensation of stranding letterweight power.
Damage information card when preventing to rub with the hands paper piece 3 all wearing and tearing rear-swing arms 1 contact with stranding paper tape 12 so be different from a side of light barrier 8 at optocoupler arm 7, is positioned at the travel switch 13 that conplane position is provided with motor 10 with the movement locus of optocoupler arm 7.When rubbing paper piece 3 wear extenies with the hands when reaching certain value, when motor promoted lever motion, light lotus root arm 7 can bump against travel switch 13 along with the deflection of system.When optocoupler arm 7 bumps against travel switch 13, illustrate that the wearing and tearing of rubbing paper piece 3 with the hands have reached maximal value, need change.
Claims (2)
1, a kind of compensation stranding letterweight apparatus for adjusting force, it is arranged in the reading machine, between paper-advance unit and scanister, it is characterized in that: it mainly comprises swing arm, rubs paper tape, lever and stepper motor with the hands;
The top of described compensation stranding letterweight apparatus for adjusting force is provided with arm shaft, and an end of swing arm is fixed on the arm shaft, is fixed with above the other end of swing arm to rub the paper piece with the hands, and it is approaching with the stranding paper tape that is fixed on reading machine scanister porch to rub the top of paper piece with the hands;
Described lever is by the fixing below of swing arm of lever shaft, the one end is provided with following contact of rubbing paper piece one end with the hands with swing arm, another endlap is provided with optocoupler arm and spring catch mating plate, end at the optocoupler arm is provided with optocoupler, optocoupler and spring catch mating plate are used, and the voltage output end of optocoupler partly links to each other with Stepping Motor Control;
Described stepper motor is positioned at the bottom of this device, which is provided with the motor pivoted arm, and this motor pivoted arm is provided with the light barrier driving lever, and the light barrier driving lever contacts with the spring catch mating plate.
2, a kind of compensation stranding letterweight apparatus for adjusting force according to claim 1, it is characterized in that: described stepper motor is provided with the travel switch that is used for control step motor turned position, the trip switch is arranged on the bottom of device, be positioned at the side that the optocoupler arm is different from the spring catch mating plate, be positioned at same plane with the movement locus of optocoupler arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03256805 CN2629132Y (en) | 2003-05-15 | 2003-05-15 | Compensating paper-rubbing pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03256805 CN2629132Y (en) | 2003-05-15 | 2003-05-15 | Compensating paper-rubbing pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2629132Y true CN2629132Y (en) | 2004-07-28 |
Family
ID=34254016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03256805 Expired - Lifetime CN2629132Y (en) | 2003-05-15 | 2003-05-15 | Compensating paper-rubbing pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2629132Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128520A (en) * | 2015-09-01 | 2015-12-09 | 宁波荣大昌办公设备有限公司 | Paper pickup mechanism for printing machine |
-
2003
- 2003-05-15 CN CN 03256805 patent/CN2629132Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128520A (en) * | 2015-09-01 | 2015-12-09 | 宁波荣大昌办公设备有限公司 | Paper pickup mechanism for printing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING WUYUEXIN INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: BEIJING MAYSTAR INFORMATION TECHNOLOGY CO.,LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100085, Beijing, Haidian District on the road No. 22 on the ground floor of science and technology complex building B block 5 Patentee after: Beijing Wuyuexin Information Technology Co., Ltd. Address before: 100085 Beijing city Haidian District Road No. 22 on the information science and Technology Building 5 floor East Patentee before: Beijing Wuyuexin Information Technology Co. Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130515 Granted publication date: 20040728 |