CN219749303U - Paper detection device suitable for printer - Google Patents
Paper detection device suitable for printer Download PDFInfo
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- CN219749303U CN219749303U CN202320143267.0U CN202320143267U CN219749303U CN 219749303 U CN219749303 U CN 219749303U CN 202320143267 U CN202320143267 U CN 202320143267U CN 219749303 U CN219749303 U CN 219749303U
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Abstract
The utility model relates to a paper detection device suitable for printers, and relates to the field of printers, which comprises a paper feeding platform, wherein a paper adsorption fan, a state sensing piece, a pressure sensor and an ultrasonic sensor are arranged on the paper feeding platform; the paper suction fan drives the paper to move towards the direction away from the paper feeding platform, the paper drives the state sensing piece to rotate, the state sensing piece is abutted against the pressure sensor, and meanwhile the paper passes through the ultrasonic sensor. The paper detection mechanism of the printer is suitable for detecting the paper with high transparency, and the accuracy of paper detection of the printer is improved.
Description
Technical Field
The utility model relates to the field of printers, in particular to a paper detection device suitable for printers.
Background
The existing printer mainly comprises a paper feeding mechanism, a paper detection mechanism, a printing mechanism and a paper outlet mechanism, wherein paper to be printed is conveyed to the paper detection mechanism through the paper feeding mechanism, the printing mechanism is controlled to be started after the paper detection mechanism senses the paper, and the printing mechanism is driven to execute printing operation on the paper to be printed, and the printed paper is conveyed out of the printer through the paper outlet mechanism.
At present, a common paper detection mechanism mainly comprises an infrared correlation sensor, wherein the infrared correlation sensor comprises a transmitting end and a receiving end, the transmitting end and the receiving end are fixed at a feed inlet of the paper detection mechanism through welding, the transmitting end and the receiving end are arranged opposite to each other, when paper is conveyed to the feed inlet through a paper feeding mechanism and passes between the transmitting end and the receiving end at the feed inlet, infrared rays emitted by the transmitting end are blocked by the paper, at the moment, the receiving end cannot receive the infrared rays, a paper induction signal is sent to a printing mechanism, and then the printing mechanism executes printing operation.
In the actual production and processing process, the inventor finds that when the transparency of the paper to be printed is higher, after the paper to be printed passes between the opposite transmitting end and the receiving end at the feeding port, the paper cannot block the infrared rays emitted by the transmitting end, so that the paper detection mechanism cannot sense the paper easily, finally, the printing operation cannot be executed, the accuracy is lower, and the improvement exists.
Disclosure of Invention
In order to enable a paper detection mechanism of a printer to be suitable for detecting paper with high transparency and improve the accuracy of paper detection of the printer, the utility model provides a paper detection device suitable for the printer.
The utility model provides a paper detection device suitable for a printer, which adopts the following technical scheme:
the paper detection device suitable for the printer is arranged between the paper feeding mechanism and the printing mechanism and comprises a paper feeding platform, wherein a driving piece is arranged at one end, close to the printing mechanism, of the paper feeding platform, and the driving piece is fixedly arranged right above the paper feeding platform;
the paper feeding device comprises a paper feeding platform, a printing mechanism, a state sensing piece, a first sensing part, a second sensing part, a first sensing part and a second sensing part, wherein the state sensing piece is rotatably arranged at one end of the paper feeding platform, which is close to the printing mechanism, and a space for accommodating paper to be printed is formed between the state sensing piece and the paper feeding platform;
the upper fixing frame of the paper feeding platform is provided with a driving piece, the driving piece drives paper to move towards a direction away from the paper feeding platform, and the paper feeding platform is provided with:
the pressure sensor is fixedly connected with the paper feeding platform and is opposite to the second sensing part, and when the driving piece drives the paper to be printed to move towards the direction away from the paper feeding platform, the second sensing part is propped against the pressure sensor and outputs a first paper sensing signal;
the ultrasonic sensor is fixedly connected with the paper feeding platform and is used for detecting paper to be printed and outputting a second paper sensing signal; and the input end of the controller is connected with the pressure sensor and the ultrasonic sensor in a signal way, and the output end of the controller is connected with the printing mechanism in a control way and is used for outputting a control signal after receiving the first paper induction signal or the second paper induction signal.
By adopting the technical scheme, when the paper moves towards the direction far away from the paper feeding platform through the driving part, the paper applies force to the first sensing part of the state sensing part, the state sensing part integrally rotates and enables the second sensing part of the state sensing part to be propped against the pressure sensor, the state of the paper is converted into physical quantity sensed by the pressure sensor, and the detection of the paper is realized; meanwhile, double guarantee can be provided for paper detection through the ultrasonic sensor, and when any one or two of the ultrasonic sensor and the pressure sensor output induction signals, the controller can control the printing mechanism of the printer to execute subsequent printing operation. The pressure sensor and the ultrasonic sensor are matched for use, so that detection deviation caused by overhigh transparency of paper during paper detection by using the infrared correlation sensor can be avoided, the accuracy of paper detection by the printer is effectively improved, and meanwhile, the usability of the printer is improved.
Preferably, the paper feeding platform is fixedly connected with a mounting shaft, the state sensing piece is provided with a rotating shaft hole matched with the mounting shaft, the state sensing piece is coaxially sleeved on the mounting shaft, and the state sensing piece is in rotating fit with the mounting shaft;
the first sensing part is positioned at one side of the paper feeding platform, which is close to the paper feeding mechanism, and the second sensing part is positioned at one side of the paper feeding platform, which is far away from the paper feeding mechanism;
when the driving piece drives the first sensing part to move towards the direction away from the paper feeding platform, the second sensing part is propped against the pressure sensor, and the pressure sensor outputs the first paper sensing signal.
Through adopting above-mentioned technical scheme, the installation axle cooperates with the rotation shaft hole on the state sensing spare, can make the installation pole form the fulcrum of state sensing spare, and first sensing portion and second sensing portion then form two lever arms on the fulcrum, and cooperation driving piece uses can realize converting the state signal of paper into the technical effect of the physical quantity that pressure sensor can detect and obtain.
Preferably, the paper feeding platform is provided with a mounting groove for mounting the pressure sensor, the pressure sensor is embedded in the mounting groove and fixedly connected in the mounting groove, and the sensing part of the pressure sensor faces the second sensing part.
Through adopting above-mentioned technical scheme, the setting of mounting groove can make pressure sensor inlay and establish in the paper feed platform, can form good protection effect to pressure sensor, promotes detection device overall structure's compactness.
Preferably, an extending part is integrally formed on one side of the second sensing part, which is close to the sensing part of the pressure sensor;
when the first sensing part moves towards a direction away from the paper feeding platform, the extending part is abutted between the second sensing part and the pressure sensor.
Through adopting above-mentioned technical scheme, through extension, first sensing portion only need remove less distance, can make second sensing portion offset with pressure sensor's sensing portion, effectively provides pressure sensor's sensitivity of detecting paper.
Preferably, the ultrasonic sensor comprises a transmitting end and a receiving end, wherein the paper feeding platform is fixedly connected with a mounting rod, the transmitting end, the receiving end and the mounting rod are fixedly connected, and the transmitting end and the receiving end are oppositely arranged; when the driving piece drives the paper to pass through the transmitting end and the receiving end, the receiving end outputs the second paper induction signal.
Through adopting above-mentioned technical scheme, the installation of both transmitting terminal and receiving terminal can be realized to the installation pole, and when the paper between the transmitting terminal and the receiving terminal of relative setting, the ultrasonic wave received by the receiving terminal weakens, can realize the technical effect of paper response.
Preferably, the controller comprises a single chip microcomputer, wherein the input end of the single chip microcomputer is respectively connected with the pressure sensor and the ultrasonic sensor in a signal manner, and the output end of the single chip microcomputer is connected with the printing mechanism in a control manner.
By adopting the technical scheme, as the singlechip technology is mature, the singlechip has the advantages of high sensitivity, high stability, low price and the like, and the use of the detection device can ensure that the detection device has the advantages of high sensitivity and high stability at the same time, and simultaneously reduces the cost for producing the detection device.
Preferably, the driving piece comprises a plurality of paper adsorption fans, and the paper adsorption fans are fixedly arranged above the paper feeding platform.
Through adopting above-mentioned technical scheme, the use of paper absorption fan can realize waiting to print the paper and adsorb and carry out the technological effect that forwards on the paper feed platform.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. when one of the pressure sensor and the ultrasonic sensor senses paper, the controller outputs a control signal, so that the condition that the sensed paper cannot be detected due to the fact that the transparency of the paper is too high can be reduced, the accuracy of paper detection of the printer is improved, and the availability of the printer is improved;
2. the state sensing piece and the driving piece are matched for use, so that the state of the paper is converted into the physical quantity which can be detected by the pressure sensor, and the conversion effect of the state of the paper is realized.
Drawings
Fig. 1 is a schematic view showing the overall structure of a paper sheet detecting apparatus according to an embodiment of the present utility model.
Fig. 2 is an enlarged view a of fig. 1, mainly for illustrating a positional relationship between the condition-sensitive member pressure sensors.
Fig. 3 is a schematic diagram of an embodiment of the present utility model mainly used for illustrating internal signal transmission of the detection device.
Reference numerals illustrate: 1. a paper feeding platform; 11. a mounting shaft; 12. a mounting rod; 13. a mounting groove; 2. a driving member; 3. a state sensing member; 31. a first sensing part; 32. a second sensing part; 321. an extension; 33. a rotation shaft hole; 4. a pressure sensor; 5. an ultrasonic sensor; 51. a transmitting end; 52. and a receiving end.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
Examples
The embodiment of the utility model discloses a paper detection device suitable for a printer. Referring to fig. 1, it mainly includes a paper feed platform 1, and the paper feed platform 1 is disposed between a paper feed mechanism and a printing mechanism.
Referring to fig. 1, a driving member 2 is disposed on a fixing frame above one end of the paper feeding platform 1, which is close to the printing mechanism, in this embodiment, a row of 6 paper suction fans are used as the driving member 2, and in some other embodiments, the number of the paper suction fans can be adjusted according to the actual use requirement, which is not limited herein.
Referring to fig. 1, a state sensing member 3 is rotatably provided to a portion of the paper feeding platform 1 adjacent to the printing mechanism. Wherein the paper feeding platform 1 is fixedly connected with a mounting shaft 11 through welding, and the state sensing member 3 is provided with a rotating shaft hole 33 which is matched with the mounting shaft 11.
The state sensing member 3 includes a first sensing portion 31 and a second sensing portion 32, the first sensing portion 31 is located at a side of the paper feeding platform 1 near the paper feeding mechanism, and the second sensing portion 32 is located at a side of the paper feeding platform 1 far from the paper feeding mechanism.
Referring to fig. 1, a space for accommodating sheets is formed between the second sensing portion 32 and the paper feeding stage 1, and a stack of sheets to be printed is placed between the paper feeding stage 1 and the second sensing portion 32.
Referring to fig. 1 and 2, the paper feeding platform 1 is further provided with a mounting groove 13, the mounting groove 13 is embedded and fixedly connected with the pressure sensor 4 through welding, and an induction part of the pressure sensor 4 is opposite to the second induction part 32.
The setting of mounting groove 13 can make pressure sensor 4 inlay and establish in paper feed platform 1, can promote detection device overall structure's compactness when forming good protection effect to pressure sensor 4.
Meanwhile, the end part of the paper feeding platform 1, which is close to the printing mechanism, is fixedly connected with a mounting rod 12 through welding, and the mounting rod 12 is fixedly connected with an ultrasonic sensor 5. The ultrasonic sensor 5 includes a transmitting end 51 and a receiving end 52, and the transmitting end 51 and the receiving end 52 are fixedly connected to the mounting rod 12 through screws respectively.
In the actual detection process, when the paper adsorption fan acts on paper to be printed and drives the paper to move towards the direction away from the paper feeding platform 1, the paper drives the first sensing part 31 to rotate, the second sensing part 32 is enabled to be propped against the pressure sensor 4, and the pressure sensor 4 outputs a first paper sensing signal.
The installation shaft 11 is matched with the rotating shaft hole 33 on the state sensing piece 3, so that the installation rod 12 forms a fulcrum of the state sensing piece 3, the first sensing part 31 and the second sensing part 32 form two lever arms on the fulcrum, and the technical effect of converting a state signal of paper into a physical quantity which can be detected by the pressure sensor 4 can be realized by the matched driving piece 2.
Meanwhile, the paper passes between the transmitting end 51 and the receiving end 52 in the process of being far away from the paper feeding platform 1, at this time, the ultrasonic wave received by the receiving end 52 weakens, and a second paper sensing signal is output.
In the embodiment of the present utility model, the output end of the pressure sensor 4 and the receiving end 52 of the ultrasonic sensor 5 are respectively connected to a controller through data bus signals, and in the embodiment of the present utility model, the controller adopts a single chip microcomputer.
When the singlechip receives the first paper induction signal and/or the second paper induction signal, the singlechip outputs a control signal to the printing mechanism to control the printer to execute subsequent printing operation.
When the paper moves in a direction away from the paper feeding platform 1 through the driving part 2, the paper applies force to the first sensing part 31 of the state sensing part 3, the state sensing part 3 integrally rotates and enables the second sensing part 32 of the state sensing part 3 to abut against the pressure sensor 4, the state of the paper is converted into a physical quantity sensed by the pressure sensor 4, and the detection of the paper is realized.
Meanwhile, the ultrasonic sensor 5 can provide double guarantee for paper detection, and when any one or two of the ultrasonic sensor 5 and the pressure sensor 4 output induction signals, the controller can control the printing mechanism of the printer to execute subsequent printing operation.
The pressure sensor 4 and the ultrasonic sensor 5 are matched for use, so that detection deviation caused by overhigh transparency of paper can be avoided when the infrared correlation sensor is used for detecting paper, the accuracy of paper detection of the printer is effectively improved, and meanwhile, the usability of the printer is improved.
In order to further improve the sensitivity of the paper detection device, referring to fig. 1, an extension 321 is integrally formed on one side of the second sensing portion 32 near the pressure sensor 4, and when the first sensing portion 31 moves in a direction away from the paper feeding platform 1, the extension 321 abuts between the second sensing portion 32 and the pressure sensor 4.
Through the extension portion 321, the first sensing portion 31 only needs to move a small distance, so that the second sensing portion 32 can be abutted against the sensing portion of the pressure sensor 4, and the sensitivity of the pressure sensor 4 for detecting paper is effectively improved.
The embodiment of the utility model provides a paper detection device suitable for a printer, which comprises the following implementation principles: when the paper moves in a direction away from the paper feeding platform 1 through the driving piece 2, the paper applies force to the first sensing part 31 of the state sensing piece 3, the state sensing piece 3 integrally rotates and enables the second sensing part 32 of the state sensing piece 3 to abut against the pressure sensor 4, so that the state of the paper is converted into a physical quantity sensed by the pressure sensor 4, and the paper is detected; meanwhile, the ultrasonic sensor 5 can provide double guarantee for paper detection, and when any one or two of the ultrasonic sensor 5 and the pressure sensor 4 output induction signals, the controller can control the printing mechanism of the printer to execute subsequent printing operation. The pressure sensor 4 and the ultrasonic sensor 5 are matched for use, so that detection deviation caused by overhigh transparency of paper can be avoided when the infrared correlation sensor is used for detecting paper, the accuracy of paper detection of the printer is effectively improved, and meanwhile, the usability of the printer is improved.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. The paper detection device suitable for the printer is arranged between a paper feeding mechanism and a printing mechanism and is characterized by comprising a paper feeding platform (1), wherein one end, close to the printing mechanism, of the paper feeding platform (1) is provided with a driving piece (2), and the driving piece (2) is fixedly arranged right above the paper feeding platform (1);
one end of the paper feeding platform (1) close to the printing mechanism is rotatably provided with a state sensing piece (3), the state sensing piece (3) comprises a first sensing part (31) and a second sensing part (32), the first sensing part (31) is arranged towards one side close to the paper feeding platform (1), and a space for accommodating paper to be printed is formed between the state sensing piece (3) and the paper feeding platform (1); the upper fixing frame of the paper feeding platform (1) is provided with a driving piece (2), the driving piece (2) drives paper to move towards the direction away from the paper feeding platform (1),
the paper feeding platform (1) is provided with:
the pressure sensor (4) is fixedly connected with the paper feeding platform (1) and is arranged opposite to the second sensing part (32), and when the driving piece (2) drives the paper to be printed to move towards the direction away from the paper feeding platform (1), the second sensing part (32) is propped against the pressure sensor (4), and the pressure sensor (4) outputs a first paper sensing signal;
the ultrasonic sensor (5) is fixedly connected with the paper feeding platform (1) and is used for detecting paper to be printed and outputting a second paper sensing signal;
and the input end of the controller is in signal connection with the pressure sensor (4) and the ultrasonic sensor (5), and the output end of the controller is in control connection with the printing mechanism and is used for outputting a control signal after receiving the first paper induction signal or the second paper induction signal.
2. The paper detection device suitable for the printer according to claim 1, wherein a mounting shaft (11) is fixedly connected to the paper feeding platform (1), a rotating shaft hole (33) matched with the mounting shaft (11) is formed in the state sensing piece (3), the state sensing piece (3) is coaxially sleeved on the mounting shaft (11), and the state sensing piece (3) is in rotating fit with the mounting shaft (11);
the first induction part (31) is positioned at one side of the paper feeding platform (1) close to the paper feeding mechanism, and the second induction part (32) is positioned at one side of the paper feeding platform (1) far away from the paper feeding mechanism;
when the driving piece (2) drives the first sensing part (31) to move towards a direction away from the paper feeding platform (1), the second sensing part (32) is abutted against the pressure sensor (4), and the pressure sensor (4) outputs the first paper sensing signal.
3. The paper detection device suitable for printers according to claim 2, characterized in that the paper feeding platform (1) is provided with a mounting groove (13) for mounting the pressure sensor (4), the pressure sensor (4) is embedded in and fixedly connected to the mounting groove (13), and the sensing part of the pressure sensor (4) is arranged towards the second sensing part (32).
4. A paper detection device suitable for printers according to claim 3, characterized in that the second sensing part (32) is provided with an extension part (321) integrally formed on one side of the sensing part close to the pressure sensor (4);
when the first sensing part (31) moves in a direction away from the paper feeding platform (1), the extending part (321) is abutted between the second sensing part (32) and the pressure sensor (4).
5. The paper detection device suitable for printers according to claim 1, characterized in that the ultrasonic sensor (5) comprises a transmitting end (51) and a receiving end (52), the paper feeding platform (1) is fixedly connected with a mounting rod (12), the transmitting end (51), the receiving end (52) and the mounting rod (12) are fixedly connected, and the transmitting end (51) and the receiving end (52) are oppositely arranged;
when the driving piece (2) drives the paper to pass through the transmitting end (51) and the receiving end (52), the receiving end (52) outputs the second paper sensing signal.
6. The paper detection device suitable for the printer according to claim 1, wherein the controller comprises a single chip microcomputer, the input end of the single chip microcomputer is respectively connected with the pressure sensor (4) and the ultrasonic sensor (5) in a signal manner, and the output end of the single chip microcomputer is connected with the printing mechanism in a control manner.
7. A paper detection device suitable for printers according to claim 1, characterized in that the driving member (2) comprises a number of paper suction fans fixedly mounted above the paper feeding platform (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320143267.0U CN219749303U (en) | 2023-01-16 | 2023-01-16 | Paper detection device suitable for printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320143267.0U CN219749303U (en) | 2023-01-16 | 2023-01-16 | Paper detection device suitable for printer |
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| Publication Number | Publication Date |
|---|---|
| CN219749303U true CN219749303U (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320143267.0U Active CN219749303U (en) | 2023-01-16 | 2023-01-16 | Paper detection device suitable for printer |
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| Country | Link |
|---|---|
| CN (1) | CN219749303U (en) |
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2023
- 2023-01-16 CN CN202320143267.0U patent/CN219749303U/en active Active
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