CN212503033U - Paper separating device and printer - Google Patents
Paper separating device and printer Download PDFInfo
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- CN212503033U CN212503033U CN202021558584.1U CN202021558584U CN212503033U CN 212503033 U CN212503033 U CN 212503033U CN 202021558584 U CN202021558584 U CN 202021558584U CN 212503033 U CN212503033 U CN 212503033U
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Abstract
The utility model discloses a paper separating device and a printer, which are arranged on a frame and comprise a paper feeding roller and a paper rubbing device which are connected on the frame and are suitable for being driven to rotate, wherein the paper rubbing device comprises a paper rubbing plate and a paper rubbing roller; a paper twisting channel is formed between the paper feeding roller and the paper twisting roller, and the paper twisting channel is suitable for self-adjusting the gap of the paper according to the thickness of the paper entering the paper twisting channel; the paper rubbing roller is movably connected to the paper rubbing plate and is suitable for being driven to rotate or to be selectively driven to rotate by the paper feeding roller and the paper. The utility model discloses can improve the degree of accuracy of branch paper, conveniently get the card paper.
Description
Technical Field
The utility model relates to a paper separator and printer.
Background
At present, invoices (value-added tax special invoices and common invoices) need to be subjected to grouping processing, at least 2 invoices are provided, the invoices need to be rubbed one by one for grouping processing, and each bill of each bill is buckled by a paper tooth; and printing via a stylus printer (forming a font by striking the carbon paper with a stylus in the print head) may result in tighter binding between each note.
The existing paper separation mode adopted in the field of self-service connection is a three-roller mode, a pickup roller (separation roller) and a paper feeding roller are meshed by utilizing spring pressurization to perform paper separation treatment, but the mode has a smaller performance interval and high requirement on the precision of a spring, and when a plurality of papers enter a roller wheel, the pressure can deviate from a performance window, so that the resending is easy to occur; along with the wearing and tearing of running roller, pressure state can change to some extent, leads to the running roller local wear so that the paper resends, and the maintenance cycle shortens, and it is inconvenient to get the card paper.
The structure is simple, and the pressure spring is utilized to mesh the pickup roller with the paper feeding roller; the structure is used for separating paper vertically, and the paper is conveyed to a paper feeding roller by utilizing gravity and adding power to carry out paper separation treatment; however, the structure has high requirement on the accuracy of the spring, is sensitive to the matching between the track clearance and the pressure, and is difficult to take the card.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide a paper separator, it can improve the degree of accuracy of branch paper, conveniently get card paper.
In order to solve the technical problem, the technical scheme of the utility model is that: a paper separating apparatus mounted on a frame, comprising:
a paper feed roller connected to the frame and adapted to be driven to rotate;
the paper rubbing device comprises a paper rubbing plate and a paper rubbing roller; wherein the content of the first and second substances,
a paper twisting channel through which paper passes is formed between the paper feeding roller and the paper twisting roller, and the paper twisting channel is suitable for self-adjusting the gap of the paper according to the thickness of the paper entering the paper twisting channel;
the paper rubbing roller is movably connected to the paper rubbing plate and is suitable for being driven to rotate or to be selectively driven to rotate by the paper feeding roller and the paper.
Further, a structure is provided to realize self-adjustment of the gap of the paper twisting channel, one end part of the paper twisting plate in the paper feeding direction is hinged to the frame, the paper twisting roller is arranged at the other end part of the paper twisting plate, and the paper twisting plate is suitable for swinging around the hinged part under the action of paper entering the paper twisting channel so as to realize self-adjustment of the gap of the paper twisting channel.
Further, the device also comprises a pickup roller rotation driving mechanism which is connected with the pickup roller to drive the pickup roller to rotate.
Further, a concrete structure of a pickup roller rotation driving mechanism is provided, the pickup roller rotation driving mechanism includes:
the main rotating shaft is coaxially arranged with the hinged central axis of the paper twisting plate and is connected with a rotating power source;
the secondary rotating shaft is coaxially connected with the pickup roller;
and a timing belt pair connecting the main rotating shaft and the auxiliary rotating shaft.
Further, a torque limiter is arranged in transmission between the pickup roller rotation driving mechanism and the pickup roller.
Further, the paper pickup roller is suitable for being driven to rotate, contacts with the paper and is arranged in front of the pickup roller in the paper feeding direction.
Further, the paper lifting roller and the paper rubbing plate are suitable for self-adjusting the gap between the paper lifting roller and the paper rubbing plate according to the thickness of the paper entering between the paper lifting roller and the paper rubbing plate.
The utility model also provides a printer, it includes above paper separator.
After the technical scheme is adopted, the utility model discloses following beneficial effect has:
1. the dead weight is used for adjusting the gap and the pressure of the paper twisting channel, the paper twisting channel has a certain gap (allowing a small amount of paper to pass through), the paper twisting plate can turn upwards and rotate through the hinged fulcrum, the paper with different thicknesses enters the channel, the paper twisting plate can be lifted to different heights, but the pressure of the paper twisting plate on the paper is always the same (the gap of the paper twisting channel is automatically adjusted according to the paper with different thicknesses);
2. the paper separating device conveys paper by anticlockwise rotating the paper feeding roller and the paper lifting roller, and compared with an independent paper feeding roller, the combination of the paper feeding roller and the paper lifting roller is more stable, and the paper separating capacity is stronger;
3. the paper twisting plate can be turned upwards at any time to open the paper twisting channel to process paperboard, the hinged fulcrum and the paper twisting roller are conveyed by the synchronous belt, the distance is large, turning of the paper twisting plate cannot be influenced, and redundant pressure cannot be applied to the paper twisting roller in the torque transmission process.
Drawings
FIG. 1 is a schematic structural view of a paper separating device according to the present invention;
FIG. 2 is a perspective view of the paper separating device of the present invention;
FIG. 3 is a first schematic view of the paper separating device of the present invention;
FIG. 4 is a second schematic view of the paper separating device of the present invention;
FIG. 5 is a third schematic view of the paper separating device of the present invention;
fig. 6 is a diagram of the components of the paper separating apparatus.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example one
As shown in fig. 1 to 6, a paper separating apparatus, which is installed on a frame, includes:
a feed roller 1 connected to the frame and adapted to be driven to rotate;
the paper twisting device comprises a paper twisting plate 2 and a paper twisting roller 3; wherein the content of the first and second substances,
a paper twisting channel for paper to pass through is formed between the paper feeding roller 1 and the paper twisting roller 3, and the paper twisting channel is suitable for self-adjusting the clearance of the paper according to the thickness of the paper entering the paper twisting channel;
the pickup roller 3 is movably connected to the pickup plate 2 and is adapted to rotate with or be selectively driven to rotate by the paper feeding roller 1 and the paper.
In the present embodiment, the paper advance direction is guided by the paper guide 10.
The paper separating device uses the dead weight to adjust the gap and the pressure of the paper twisting channel, the paper twisting channel has a certain gap (allowing a small amount of paper to pass through), the paper twisting plate 2 can turn upwards and rotate through the hinged fulcrum, the paper with different thicknesses enters the channel, the paper twisting plate 2 can be lifted up to different heights, but the pressure of the paper twisting plate to the paper is always the same (the gap of the paper twisting channel is automatically adjusted according to the paper with different thicknesses);
as shown in fig. 2, in order to realize the function of self-adjusting the gap of the pickup path, one mode of the structure is introduced, one end of the pickup plate 2 in the feeding direction is hinged to the frame, the pickup roller 3 is provided at the other end of the pickup plate 2, and the pickup plate 2 is adapted to swing around the hinge under the action of the paper entering the pickup path to self-adjust the gap of the pickup path.
The paper rubbing plate 2 can be turned upwards at any time to open the paper rubbing channel to process paperboard, the hinged fulcrum and the paper rubbing roller are conveyed through the synchronous belt, the distance is large, turning of the paper rubbing plate cannot be affected, and redundant pressure cannot be applied to the paper rubbing roller in the torque transmission process.
The paper separating device also comprises a pickup roller rotation driving mechanism which is connected with the pickup roller 3 to drive the pickup roller 3 to rotate.
Specifically, the pickup roller rotation driving mechanism may have the following structure including:
a main rotating shaft 41 coaxially disposed with the hinge central axis of the paper twisting plate 2 and connected to a rotary power source;
a secondary rotating shaft 42 coaxially connected with the pickup roller 3;
and a timing belt pair connecting the main rotating shaft 41 and the slave rotating shaft 42.
In this embodiment, the rotation power source drives the main rotation shaft 41 to rotate, the main rotation shaft 41 drives the secondary rotation shaft 42 to rotate through the timing belt pair, and the pickup roller 3 is driven to rotate from the rotation shaft 42.
The timing belt pair includes a timing belt 51, a main timing wheel connected to the main rotation shaft 41, and a sub timing wheel connected to the sub rotation shaft 42.
Specifically, a torque limiter 5 is arranged in transmission between the pickup roller rotation driving mechanism and the pickup roller 3.
In the present embodiment, the sheet separating apparatus further includes a sheet lifting roller 100 adapted to be driven to rotate, in contact with the sheet, and disposed before the pickup roller 3 in the sheet feeding direction. The paper is taken out before the pickup roller 3, and the paper passes through the pickup roller 100 and then the pickup roller 3; this paper separator is with paper feed roller 1 and paper lift roller 100 anticlockwise rotation carry the paper and send, compares independent paper feed roller 1, and paper feed roller 1 and paper lift roller 100 combine more stably, and the branch paper ability is stronger.
Specifically, the paper lifting roller 100 and the paper rubbing plate 2 are adapted to self-adjust the gap therebetween according to the thickness of the paper entering therebetween.
Specifically, taking a triplet of paper as an example: the friction coefficient between the paper and the roller is mu1Coefficient of friction between paper sheets mu2The friction coefficient between the rollers is mu3The positive pressure of the pickup plate 2 is Fn, the radius of the pickup roller 3 is r, a moment limiter 5 is arranged between the pickup roller 3 and the driven rotating shaft 42, and the torque of the moment limiter is T; the torque T is constant.
Friction between paper and paper feed roller 1: mu-f 11Fn；
Friction between paper sheets: mu-f 22Fn；
Friction force between rollers: mu-f 33Fn；
Twisting force of the pickup roller 3: f4 ═ T/r;
taking a triple sheet as an example, when the triple sheets enter together, since μ1＞μ2F1 > f2, the paper feeding roller 1 rotates anticlockwise to drive the third piece of paper forwards; when mu is2When Fn < T/r (i.e., f2 < f4), the third couple is separated, and the second couple works similarly. When Fn is too large or T is too small, mu 2Fn is more than T/r (i.e. f2 is more than f4), the three-piece paper is sent out together, and the phenomenon is calledFor the double feed, an abnormal phenomenon is shown in fig. 5.
When there is no paper, the feed roller 1 rotates counterclockwise, and the feed roller 1 engages with the pickup roller 3 due to μ3Fn is larger than T/r (namely f3 is larger than f4), the friction force between the rubber roller and the rubber roller is larger than the torque provided by the torque limiter, the inner ring of the torque limiter slips, and therefore the pickup roller 3 is driven by the paper feeding roller 1 to rotate clockwise, as shown in figure 3.
When there is only one sheet, when μ1Fn is larger than T/r (namely f1 is larger than f4), the paper feeding roller 1 rotates anticlockwise to drive the paper to be conveyed forwards, the friction force between the paper and the rubber roller is larger than the constant torque provided by the torque limiter, the inner ring of the torque limiter slips, and the pickup roller 3 is driven by the paper to rotate clockwise, as shown in FIG. 4.
A in fig. 4 and 5 is a sheet.
In summary, the matching relationship between Fn and T determines whether the sheet can be fed out. The Fn of the traditional structure changes along with the entering of paper with different thicknesses, and the size of the Fn is difficult to adjust; in the embodiment, Fn is the dead weight of the metal plate, so when different paper enters the channel, Fn is constant and constant, as shown in fig. 6.
Example two
A printer comprising the paper separating device of embodiment one.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (8)
1. A paper separating device is arranged on a frame and is characterized by comprising:
a feed roller (1) connected to the frame and adapted to be driven in rotation;
the paper twisting device comprises a paper twisting plate (2) and a paper twisting roller (3); wherein the content of the first and second substances,
a paper twisting channel is formed between the paper feeding roller (1) and the paper twisting roller (3), and the paper twisting channel is suitable for self-adjusting the gap of the paper according to the thickness of the paper entering the paper twisting channel;
the paper rubbing roller (3) is movably connected to the paper rubbing plate (2) and is suitable for being driven by the paper feeding roller (1) and paper to rotate or to be selectively driven to rotate.
2. The paper separation device of claim 1, wherein:
one end part of the paper rubbing plate (2) in the paper feeding direction is hinged to the rack, the paper rubbing roller (3) is arranged at the other end part of the paper rubbing plate (2), and the paper rubbing plate (2) is suitable for swinging around the hinged part under the action of paper entering the paper rubbing channel so as to automatically adjust the gap of the paper rubbing channel.
3. The paper separation device of claim 1, wherein:
the paper pickup device also comprises a paper pickup roller rotation driving mechanism which is connected with the paper pickup roller (3) to drive the paper pickup roller (3) to rotate.
4. The paper separation device of claim 3, wherein:
the pickup roller rotary driving mechanism comprises:
a main rotating shaft (41) which is coaxially arranged with the hinge central axis of the paper twisting plate (2) and is connected with a rotating power source;
a secondary rotating shaft (42) coaxially connected with the pickup roller (3);
and a timing belt pair connecting the main rotating shaft (41) and the auxiliary rotating shaft (42).
5. The paper separation device of claim 3, wherein:
and a torque limiter (5) is arranged in the transmission between the pickup roller rotation driving mechanism and the pickup roller (3).
6. The paper separation device of claim 1, wherein:
and a paper lifting roller (100) which is suitable for being driven to rotate, contacts with the paper and is arranged in front of the pickup roller (3) in the paper feeding direction.
7. The paper separating apparatus according to claim 6,
the paper lifting roller (100) and the paper twisting plate (2) are suitable for self-adjusting the gap between the paper lifting roller and the paper twisting plate according to the thickness of the paper entering between the paper lifting roller and the paper twisting plate.
8. A printer, characterized in that it comprises a paper separating device according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558584.1U CN212503033U (en) | 2020-07-31 | 2020-07-31 | Paper separating device and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021558584.1U CN212503033U (en) | 2020-07-31 | 2020-07-31 | Paper separating device and printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212503033U true CN212503033U (en) | 2021-02-09 |
Family
ID=74442711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021558584.1U Active CN212503033U (en) | 2020-07-31 | 2020-07-31 | Paper separating device and printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212503033U (en) |
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2020
- 2020-07-31 CN CN202021558584.1U patent/CN212503033U/en active Active
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