CN208292335U - Paper feed mechanism and printer - Google Patents
Paper feed mechanism and printer Download PDFInfo
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- CN208292335U CN208292335U CN201820777925.0U CN201820777925U CN208292335U CN 208292335 U CN208292335 U CN 208292335U CN 201820777925 U CN201820777925 U CN 201820777925U CN 208292335 U CN208292335 U CN 208292335U
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Abstract
The utility model provides a kind of paper feed mechanism and printer, is related to printer technology field, for improving the printing effect of printer.The paper feed mechanism includes at least two pairs of feed rollers, at least one sensor group, intake roller, control device and several driving sources, feed rollers, sensor group and intake roller are set gradually along paper feeding path, and at least two pairs of feed rollers include the first pair of feed rollers and second pair of feed rollers that paper feeding path two sides are arranged in；Sensor group includes the first sensor and second sensor that paper feeding path two sides are arranged in；Control device is connect with each first sensor, second sensor and driving source signal respectively, for determining the skew direction and deflection of paper according to the sensing signal of first sensor and second sensor, and the revolving speed of first pair of feed rollers and/or second pair of feed rollers is adjusted accordingly, ajust paper before being delivered to intake roller.Paper feed mechanism provided by the utility model is applied in printer.
Description
Technical field
The utility model relates to printer technology field more particularly to a kind of paper feed mechanisms and printer.
Background technique
Printer is a kind of output equipment for computer disposal result to be printed upon on paper, recently as calculating
The rapid development of machine technology and printer technology, printer using more more and more universal.Correspondingly, the competition of printer industry
More and more fierce, on the one hand printer producer can make great efforts to reduce being produced into improve the competitiveness of its printer produced
This, on the other hand can also improve the printing effect of printer as possible.
Influence printer printing effect factor first is that the paper that paper feed mechanism is conveyed enters the printing of printer
When area whether deflection, if paper has deflection when entering print zone, be formed in printing content on paper can opposite paper side
Edge deflection, thus influence printing effect.Paper feed mechanism is generally arranged at the paper feeding path between the carton of printer and print zone
On comprising along the feed rollers and intake roller for sending the setting arranged in parallel of paper feeding path, and feed rollers is located at the upstream of intake roller, defeated
Paper bowl is used to convey paper to the print zone of printer for receiving the paper entered from carton in paper feed mechanism, intake roller.
Wherein feed rollers includes the active feed rollers connecting with driving source, and the driven feed rollers being used cooperatively with active feed rollers,
Intake roller includes the active intake roller connecting with driving source, and the driven intake roller being used cooperatively with active intake roller.Paper
Into after paper feed mechanism, convey paper to intake roller using the frictional force between active feed rollers and driven feed rollers, then
Under frictional force effect of the paper between active intake roller and driven intake roller, the print zone for being sent to printer is beaten
Print.
But, when carrying out paper feeding using above-mentioned paper feed mechanism, if the paper into paper feed mechanism has deflection, paper is being passed through
Paper feed mechanism also has deflection when conveying into the print zone of printer, therefore the printing content being formed on paper also can be with respect to paper
The edge deflection opened, influences the printing effect of printer.For this problem, although the print zone of many printers increases at present
The error-correction structures such as paper groove are led, ajust paper gradually using these error-correction structures, but this mode prints before paper is ajusted
Content still has deflection, therefore also will affect the printing effect of printer.
Utility model content
The purpose of this utility model is to provide a kind of paper feed mechanism and printers, for entering beating for printer in paper
Print ajusts paper before area, improves the printing effect of printer.
To achieve the goals above, the utility model adopts the following technical solution:
The first aspect of the utility model provides a kind of paper feed mechanism comprising: it is set gradually at least along paper feeding path
Two pairs of feed rollers and intake roller, at least two pairs of feed rollers include first pair of paper feeding that first side in paper feeding path is arranged in
Roller, and second pair of feed rollers of the second side in paper feeding path is set；First pair of feed rollers, second pair of feed rollers and into
Paper bowl includes drive roll and driven voller of the axis perpendicular to paper feeding direction；
Several driving sources, each driving source are sequentially connected with corresponding one drive roll；
At least one sensor group between intake roller and a pair of of the feed rollers nearest with intake roller, the sensor
Group includes the first sensor that first side of paper feeding path is arranged in, and is arranged in the second of paper feeding path second side
Sensor；
The control device being connect respectively with each first sensor, second sensor and driving source signal, the control
Device determines the skew direction and deflection of paper according to the sensing signal of the first sensor and second sensor, and according to
The skew direction and deflection adjust the revolving speed of first pair of feed rollers and/or second pair of feed rollers, are conveying paper
It is ajusted before to intake roller.
Compared with prior art, the paper feed mechanism that the first aspect of the utility model provides has the advantages that
Paper feed mechanism provided by the utility model can detecte paper using first sensor and second sensor and transmit
Whether deflection is had in journey, and control device determines the skew direction of paper according to the sensing signal of first sensor and second sensor
And deflection, and according to the revolving speed of skew direction and deflection adjustment and the driving source of first pair of feed rollers transmission connection or with the
The revolving speed of the driving source of two pairs of feed rollers transmission connection makes so as to adjust first pair of feed rollers or the revolving speed of second pair of feed rollers
Paper is ajusted before being delivered to intake roller, that is, paper is ajusted before the print zone for entering printer, so that printing
Printing content on the paper is without deflection, so as to improve the printing effect of printer.
As a kind of improvement of the above-mentioned paper feed mechanism of the utility model, first pair of feed rollers and second pair of paper feeding
Roller face, and a pair of of conveying roller is consistent with the rotation direction of second pair of conveying roller.
As a kind of improvement of the above-mentioned paper feed mechanism of the utility model, in the drive roll and the driven voller at least one
A is rubber rollers.
Another kind as the above-mentioned paper feed mechanism of the utility model improves, and in the same sensor group, described first is passed
Sensor and second sensor face.
As the further improvement of the above-mentioned paper feed mechanism of the utility model, the first sensor and the second sensor
It is photoelectric sensor.
Another kind as the above-mentioned paper feed mechanism of the utility model improves, and the control device includes central processing unit, point
The several driving source controllers not connecting with central processing unit signal, each driving source controller drive with corresponding one
Source signal connection.
As the above-mentioned paper feed mechanism of the utility model into a kind of improvement, the control device further includes and central processing unit
The memory of signal connection.
As the further improvement of the above-mentioned paper feed mechanism of the utility model, the driving source is motor.
The second aspect of the utility model provides a kind of printer comprising carton and print zone, and the connection paper
The paper feeding path of box and the print zone, the paper feeding path are provided with paper feed mechanism described in first aspect.
The printer that the second aspect of the utility model provides, since it includes paper feed mechanism described in first aspect, because
The printer that the second aspect of this utility model provides also has the advantages that identical with paper feed mechanism described in first aspect.
As a kind of improvement of the above-mentioned printer of the utility model, the print zone is provided with air roll and is located at the pressure
Print head above paper bowl.
In addition to the utility model described above solve the technical issues of, constitute technical solution technical characteristic and by
Outside beneficial effect brought by the technical characteristic of these technical solutions, paper feed mechanism and printer institute provided by the utility model energy
The other technical characteristics and these technical characteristic brings for including in the other technologies problem of solution, technical solution are beneficial to effect
Fruit will make further details of explanation in a specific embodiment.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be practical to this
New embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing be only that a part of the embodiment of the utility model is not paying creation for those of ordinary skill in the art
Property labour under the premise of, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of paper feed mechanism provided by the embodiment of the utility model；
Fig. 2 is the A direction view of paper feed mechanism in Fig. 1；
Fig. 3 is the structural block diagram of the control device of paper feed mechanism in Fig. 1；
Fig. 4 is the structural schematic diagram of printer provided by the embodiment of the utility model；
Fig. 5 is the working principle diagram of printer in Fig. 4.
Description of symbols:
10- paper feed mechanism, 11- feed rollers,
11a- first to feed rollers, 11b- second to feed rollers,
12- driving source, 12a- the first paper feeding driving source,
12b- the second paper feeding driving source, 12c- paper feed driving source,
12d- pickup driving source, 13- sensor group,
13a- first sensor, 13b- second sensor,
14- intake roller, 15- control device,
The print zone 20-, 21- print head,
22- air roll, 30- carton,
31- pickup roller, 40- paper feeding path,
50- paper, 60-I/F interface,
70- host equipment, the first drive roll of 110a-,
The first driven voller of 111a-, the second drive roll of 110b-,
The second driven voller of 111b-, 151- central processing unit,
152- read-only memory, 153- random access memory,
154- print head driver, 155- drive Source drive,
155a- pickup driver, 155b- paper feed driver,
155c- the first paper feeding driver, 155d- the second paper feeding driver.
Specific embodiment
In order to ajust paper before the print zone that paper enters printer, improve the printing effect of printer, this is practical
New embodiment provides a kind of improved paper feed mechanism, which includes at least two pairs of paper feedings along the setting of paper feeding path
Roller, at least one sensor group and intake roller, at least two pairs of feed rollers include first pair of paper feeding that paper feeding path side is arranged in
Roller and second pair of feed rollers that the paper feeding path other side is arranged in, each sensor group include that paper feeding path side is arranged in
One sensor, and the second sensor of the paper feeding path other side is set.It can be with using first sensor and second sensor
The arrival time of the leading edge of paper is detected, it is hereby achieved that the skew direction and deflection of paper, according to the deflection of paper
Direction and and deflection so that paper is being entered printer by adjusting first pair of feed rollers and/or the revolving speed of second pair of feed rollers
Print zone before paper is ajusted, so as to improve the printing effect of printer.
It, below will knot in order to keep the above objects, features, and advantages of the utility model embodiment more obvious and easy to understand
The attached drawing in the utility model embodiment is closed, the technical scheme in the utility model embodiment is clearly and completely described.
Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on this reality
With the embodiment in novel, those of ordinary skill in the art without creative labor it is obtained it is all its
Its embodiment belongs to the range of the utility model protection.
Paper feeding path, the paper feeding direction, the leading edge of paper, the left-front corner of paper, the right anterior angle of paper being referred to herein
It is explained as follows:
Paper feeding path refers between the carton of printer and the print zone of printer for transmitting the channel of paper.
Paper feeding direction is direction of transfer of the paper on paper feeding path, is formed along paper feeding path.
The leading edge of paper refers to paper when transmitting on paper feed mechanism, and paper completely enters one of paper feed mechanism at first
Side, this side are the leading edge of paper, and for paper when ajusting on paper feed mechanism, the leading edge of paper is perpendicular to paper feeding direction.
The left-front corner of paper is the angle between the leading edge and left side of paper, is formed in left side and the front of paper
The intersection of edge.
The right anterior angle of paper is the angle between the leading edge and right edge of paper, is formed in right edge and the front of paper
The intersection of edge.
Herein for convenience, the first side, the right side setting second in paper feeding path will be set as on the left of paper feeding path
Side, and the first side and second side are opposite, but it is not limited to this, can also will be set as second side, paper feeding on the left of paper feeding path
The right side in path sets the first side.
Please refer to Fig. 1-Fig. 4, paper feed mechanism 10 provided by the embodiment of the utility model include: at least two pairs of feed rollers 11,
At least one sensor group 13, intake roller 14, control device 15 and several driving sources 12, wherein feed rollers 11, sensor group 13
It is set gradually with intake roller 14 along paper feeding path 40, feed rollers 11 is located at the upstream in paper feeding path 40, and intake roller 14 is located at paper feeding
The downstream in path 40, sensor group 13 are located between intake roller 14 and a pair of of feed rollers 11 nearest with intake roller 14, intake roller
14 for receiving the paper 50 that feed rollers 11 is sent, and paper 50 is transmitted into the print zone of printer 20.
Paper feeding path 40 is located between the carton 30 of printer and the print zone 20 of printer, and respectively with carton 30 and beat
It prints area 20 to be connected to, for passing through for paper 50.At least two pairs of feed rollers 11 include be arranged in paper feeding path 40 the first side the
A pair of of feed rollers 11a, and second couple of feed rollers 11b of the second side in paper feeding path 40, i.e. first couple of feed rollers 11a are set
The two sides in paper feeding path 40 are set with second couple of feed rollers 11b, in a preferred embodiment, first couple of feed rollers 11a and
Two pairs of feed rollers 11b faces.First couple of feed rollers 11a, second couple of feed rollers 11b and intake roller 14 include axis perpendicular to defeated
The drive roll and driven voller in paper direction, each drive roll are sequentially connected with a corresponding driving source 12, and driving source 12 is generally
Motor.Each driving source 12 drives a corresponding drive roll to rotate, when drive roll rotates, using the drive roll with it is corresponding from
Frictional force between dynamic roller drives driven voller rotation, so that paper 50 moves under the clamping of drive roll and corresponding driven voller.
Illustratively, as depicted in figs. 1 and 2, first couple of feed rollers 11a includes parallel the first drive roll 110a and
One driven voller 111a, and the axis of the first drive roll 110a drives perpendicular to paper feeding direction, the first drive roll 110a and the first paper feeding
Dynamic source 12a transmission connection；Second couple of feed rollers 11b includes parallel the second drive roll 110b and the second driven voller 111b, and
The axis of second drive roll 110b is sequentially connected perpendicular to paper feeding direction, the second drive roll 110b and the second paper feeding driving source 12b；
Intake roller 14 includes parallel paper feed drive roll (not indicating in figure) and paper feed driven voller (not indicating in figure), paper feed drive roll
Axis perpendicular to paper feeding direction, paper feed drive roll and paper feed driving source 12c are sequentially connected.
Sensor group 13 includes the first sensor 13a that first side in paper feeding path 40 is arranged in, and is arranged in paper feeding
The second sensor 13b of the second side in path 40, i.e. first sensor 13a and second sensor 13b are arranged in paper feeding path 40
Two sides, in a preferred embodiment, first sensor 13a and second sensor 13b face.First sensor 13a and second
Sensor 13b can be photoelectric sensor, position sensor or proximity sensor, it is preferable that first sensor 13a and second is passed
Sensor 13b is photoelectric sensor.First sensor 13a and second sensor 13b is respectively used to the leading edge of detection paper 50
By the time of first sensor 13a and second sensor 13b, specifically, first sensor 13a is used to detect a left side for paper 50
Anterior angle reaches the time of the detection zone of first sensor 13a, and the right anterior angle that second sensor 13b is used to detect paper 50 reaches the
The time of the detection zone of two sensor 13b.
Control device 15 respectively with 12 signal of all first sensor 13a, all second sensor 13b and all driving sources
Connection, control device 15 determine the inclined of paper 50 according to the sensing signal (time) of first sensor 13a and second sensor 13b
Tilted direction and deflection, and adjusted according to skew direction and deflection, adjust the first paper feeding driving source 12a and/or the second paper feeding
The revolving speed of driving source 12b makes paper 50 exist so as to adjust the revolving speed of first couple of feed rollers 11a and/or second couple of feed rollers 11b
It is ajusted before being delivered to intake roller 14.It is general only to change one of driving source herein it should be noted that controlling for convenience
Revolving speed, and the revolving speed of another driving source remains unchanged, correspondingly, general need to only adjust first couple of feed rollers 11a and second
To one revolving speed in feed rollers 11b.
In the case where normally conveying paper, the revolving speed of first couple of feed rollers 11a and second couple of feed rollers 11b are identical
, and the rotation direction of the two is also consistent, so that the speed of whole (print zone) the forward transmission of paper 50 is identical.Work as paper
When 50 leading edge reaches the detection position of first sensor 13a and second sensor 13b, first sensor 13a and second is passed
Sensor 13b can be detected simultaneously by the leading edge of paper, that is, the left-front corner of paper 50 by first sensor 13a detect when
Between with right anterior angle second sensor 13b time detected of paper 50 be it is identical, in such cases, control device 15
According to the sensing signal of first sensor 13a and second sensor 13b, it can determine and pass through first sensor 13a and second
The paper of sensor 13b is without deflection, and therefore, the revolving speed of first couple of feed rollers 11a and second couple of feed rollers 11b, can without adjustment
To remain unchanged.
When entering in paper feed mechanism 10 in the case of paper 50 has not ajusted deflection, left-front corner, paper in paper 50
Before 50 right anterior angle is not detected by first sensor 13a and second sensor 13b, first couple of feed rollers 11a and second pair
The revolving speed of feed rollers 11b remains unchanged, and still transmits paper 50 with identical revolving speed.Since the paper 50 enters paper feed mechanism 10
There is deflection when middle, therefore, first sensor 13a and second sensor 13b will not be detected simultaneously by the leading edge of paper 50, example
Property, as shown in Figure 1, right side (second side) deflection of paper 50 to paper feeding path, in this case, the left-front corner meeting of paper 50
First being detected by first sensor 13a, the right anterior angle of paper 50 is detected by second sensor 13b after the meeting, control device 15
The paper 50 that the time of the left-front corner of the paper 50 detected according to first sensor 13a and second sensor 13b are detected
The time of right anterior angle, determine that paper 50 first passes through a sensor group 13 is 50 left-front corner of paper or right anterior angle, thus really
The skew direction of fixed paper 50.In the present embodiment, as shown in Figure 1, can be determined that the left-front corner of paper 50 first passes through, by
This can determine the deflection to the right of paper 50；In addition, according to the time of the left-front corner of the first sensor 13a paper 50 detected
And time of the right anterior angle of paper 50 that second sensor 13b is detected, the left and right anterior angle that can calculate paper 50 pass through
The time difference of one sensor group 13, it is possible thereby to calculate the deflection of paper 50.
Illustratively, first sensor 13a and the setting of second sensor 13b face, it is assumed that first couple of feed rollers 11a and the
The revolving speed of two couples of feed rollers 11b is V0, the left-front corner of paper 50 is recorded as T by the first sensor 13a time detected1, paper
The time that 50 right anterior angle is detected by second sensor is recorded as T2, according to T1And T2The leading edge for calculating paper 50 passes through
Time difference △ T, the △ T=T of first sensor 13a and second sensor 13b2-T1, according to revolving speed V0It can be counted with time difference △ T
Calculate the deflection F=V of paper 500×△T.But in view of during making paper feed mechanism, due to design tolerance, process
The presence of tolerance and location tolerance, first sensor 13a and second sensor 13b are difficult complete face, therefore, the reality of paper
Border deflection generally will also be plus the relative position tolerance D between first sensor 13a and second sensor 13b, that is, paper
Practical deflection H=F+D.
You need to add is that if first sensor 13a and second sensor 13b not face setting, i.e., along paper feeding direction
There is certain deflected length between first sensor 13a and second sensor 13b, then can obtain in advance between two sensors
Deflected length, and using the deflected length between the sensor as known constant, the practical inclined of paper is obtained according to aforesaid way
After shifting amount, the deflected length between sensor can be added to the offset of above-mentioned paper or be subtracted from the offset of above-mentioned paper
Deflected length between sensor.
After the skew direction and the deflection that obtain paper according to aforesaid way, adjustable second paper feeding driving source 12b's
Revolving speed, to adjust the revolving speed of second couple of feed rollers 11b, and the revolving speed of the first paper feeding driving source 12a is remained unchanged, make first pair it is defeated
The revolving speed of paper bowl 11a remains unchanged.Second is needed to pay attention to when adjusting the revolving speed of second couple of feed rollers 11b to turn feed rollers 11b
Speed wants moderate, it is ensured that completes to ajust before the leading edge of paper 50 is transmitted to intake roller 14, while cannot generate new deflection again.
The revolving speed adjusted of second couple of feed rollers 11b can calculate in the following way:
Assuming that the distance of first sensor 13a and second sensor 13b to intake roller 14 in same sensor group 13 are
The revolving speed of L, first couple of feed rollers 11a and second couple of feed rollers 11b are V0, in the case where paper 50 is without deflection, paper 50
Leading edge is transmitted to the time T of intake roller 143=L/V0If there is deflection to the right as described above, a left side for paper 50 in paper 50
Anterior angle will be in T4Time is transmitted to intake roller 14, T4=(L-H)/V0.Therefore, in order to before paper 50 enters print zone 20 by paper
It opens 50 to ajust, paper feed mechanism 10 needs the correction completed in T time to paper 50 to act, wherein T≤T4.Due to by above-mentioned
Deflection H has been obtained, the movement of the correction to paper 50 is completed in T time, then first couple of feed rollers 11a and second
To the relative velocity △ V between feed rollers 11b are as follows: △ V=H/T.Since paper 50 is to be detected first by first sensor 13a
It arrives, therefore, keeps the revolving speed of first couple of feed rollers 11a constant, i.e. V1=V0.The revolving speed V of so second couple feed rollers 11b2=V1
+ △ V, using this revolving speed, while paper 50 is transmitted to print zone 20, paper 50 can also pass through with B in Fig. 1 to rotation
Paper 50 is ajusted after time T, and the revolving speed of second couple of feed rollers 11b changes back to V again0, so that first couple of feed rollers 11a and second pair
Feed rollers 11b keeps identical revolving speed to convey paper.
You need to add is that if the leading edge of paper 50 is detected by second sensor 13b first, according to above-mentioned class
As calculate process known to: V1=V2+ △ V, wherein V2=V0.If the leading edge of paper 50 simultaneously by first sensor 13a and
Second sensor 13b is detected, and first sensor 13a and second sensor 13b do not have deflected length on paper feeding direction, that
Illustrating paper 50, there is no deflections, therefore first couple of feed rollers 11a and second couple of feed rollers 11b keep original revolving speed
V0。
Paper feed mechanism provided by the embodiment of the utility model can be examined using first sensor 13a and second sensor 13b
Whether have deflection, control device 15 is according to the sensing of first sensor 13a and second sensor 13b if surveying in 50 transmit process of paper
Signal determines the skew direction and deflection of paper 50, and according to skew direction and deflection adjustment and first couple of feed rollers 11a
The revolving speed of the driving source of transmission connection or with second couple of feed rollers 11b transmission connection driving source revolving speed, so as to adjust first
It to the revolving speed of feed rollers 11a or second couple of feed rollers 11b, ajusts paper 50 before being delivered to intake roller 14, that is, makes paper
50 are ajusted before the print zone 20 for entering printer, so that the printing content being printed upon on the paper is without deflection, thus
Improve the printing effect of printer.
It is noted that when using above-mentioned paper feed mechanism rectify a deviation to paper when, for example, it is desired to increase by second pair it is defeated
When the revolving speed of paper bowl 11b ajusts the paper of deflection to the right, rubbing between the second drive roll 110b and the second driven voller 111b
It wipes power and is usually less than the frictional force between the tension of paper 50 itself and the paper feed drive roll of intake roller 14 and paper feed driven voller
The usually less than tension of paper 50 itself can so prevent during correction paper 50 in the paper feed drive roll of intake roller 14
There is fold between paper feed driven voller, to prevent paper jam phenomenon.
In the above-described embodiments, first couple of feed rollers 11a, second couple of feed rollers 11b and intake roller 14 hang down including axis
Directly in the drive roll and driven voller in paper feeding direction, the conveying of paper 50 mainly by the frictional force between drive roll and driven voller Lai
It pushes.Paper 50 skids in order to prevent, and in a preferred embodiment, at least one of drive roll and driven voller are rubber rollers,
Rubber rollers generally comprise mandrel and the rubber layer for being coated on the mandrel outer circumference surface.Using rubber rollers can increase drive roll and
Frictional force between driven voller, so as to prevent paper 50 from skidding.
As shown in figure 3, control device 15 includes central processing unit 151, being connect respectively with 151 signal of central processing unit
Read memory (ROM) 152, random access memory (RAM) 153 and several driving source controllers 155, each driving source controller
155 connect with 12 signal of a corresponding driving source.Specifically, control device 15 includes for generating in various control commands
Central processor (CPU) 151, is used as expansion or light at the read-only memory (ROM) 152 for storing control data or other data
Gated records random access memory (RAM) 153, the print head driver 154 for driving print head 21 in the region of data,
And the driving Source drive 155 for controlling each driving source 12, driving Source drive 155 include pickup driver 155a, into
Paper driver 155b, the first paper feeding driver 155c, the second paper feeding driver 155d.Control device 15 and the sensor group
13 joints constitute the measuring unit of paper feed mechanism.
Fig. 3 and Fig. 4 are please referred to, the utility model embodiment additionally provides a kind of printer comprising carton 30 and printing
Area 20, and the paper feeding path 40 of connection carton 30 and print zone 20, paper feeding path 40 is provided with defeated described in above-described embodiment
Mechanism of paper 10.Wherein, the control device 15 of paper feed mechanism 10 is connected by 70 signal of host equipment of I/F interface 60 and printer
It connects, I/F interface 60 is used for the data sent/between receiving control device 15 and host equipment 70.Pickup is provided in carton 30
Roller 31, pickup roller 3 are sequentially connected with pickup driving source 12d, and print zone 20 is provided with air roll 22 and is located at 22 top of air roll
Print head 21.
The detailed description of paper feed mechanism 10 can be found in above-described embodiment, due to printer provided by the embodiment of the utility model
With paper feed mechanism described in above-described embodiment, therefore the printer also has the advantages that above-mentioned paper feed mechanism, so that paper
It is ajusted before the print zone for entering printer, so that the printing content being printed upon on the paper is without deflection, so as to improve
The printing effect of printer.
Referring to Fig. 5, the print procedure of above-mentioned printer is as follows:
Step S101 sends paper.Central processing unit 151 sends control instruction and gives pickup driver 155a, passes through pickup
Driver 155a controls pickup driving source, so that pickup roller 31 is rotationally clockwise (in Fig. 4 C to), so that in carton 30
A paper in multiple paper positioned at the bottom is conveyed to the right by pickup roller 31, as shown in Figure 4.Paper 50 is by the same direction
The first couple of feed rollers 11a and second couple of feed rollers 11b of rotation are further conveyed to the right, wherein first couple of feed rollers 11a and the
Two couples of feed rollers 11b are driven by the first paper feeding driving source 12a and the second paper feeding driving source 12b respectively.
Step S102, paper do zigzagging.Central processing unit 151 sends control instruction to the first paper feeding driver
155c and the second paper feeding driver 155d makes the first paper feeding driving source 12a, the second paper feeding driving source 12b simultaneously in opposite directions
Rotation.Paper 50 is conveyed along the contrary direction of feeding with paper, as shown in figure 4, the leading edge of paper enter it is defeated
It send in path 40.
Step S103 changes sheet movement direction.Central processing unit 151 sends control instruction to the first paper feeding driver
155c and the second paper feeding driver 155d makes the revolving speed of the first paper feeding driving source 12a, the second paper feeding driving source 12b have rotational speed difference,
Since the conveying capacity of first couple of feed rollers 11a and second couple of feed rollers 11b is inconsistent, so that paper 50 can be around roller first to defeated
Certain point between paper bowl 11a and second couple of feed rollers 11b rotates, as shown in figure 4, to change the conveying side of paper
To.
Step S104, paper feed mechanism convey paper.First couple of feed rollers 11a, second couple of feed rollers 11b and intake roller 14
Paper is clamped, conveys paper towards print zone 20.
Step S105, printing.When the leading edge of paper 50 reaches print zone 20, central processing unit 151 sends control and refers to
It enables to print head driver 154, drives print head 21 to carry out printing, so that picture signal forms image on paper.?
After print head 21 starts printing, the leading edge of paper starts to come out from the outlet of printer.
Paper is discharged in step S106.After print head 21 completes the printing to paper, paper is from printer
Outlet discharge.
Each embodiment or embodiment are described in a progressive manner in this specification, and each embodiment stresses
It is the difference from other embodiments, the same or similar parts in each embodiment cross-reference.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means embodiment or example is combined to describe specific
Feature, structure, material or feature are contained at least one embodiment or example of the utility model.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of paper feed mechanism characterized by comprising
At least two pairs of feed rollers and the intake roller set gradually along paper feeding path, at least two pairs of feed rollers include being arranged defeated
First pair of feed rollers of first side in paper path, and second pair of feed rollers of the second side in paper feeding path is set；Described
A pair of of feed rollers, second pair of feed rollers and intake roller include drive roll and driven voller of the axis perpendicular to paper feeding direction；
Several driving sources, each driving source are sequentially connected with corresponding one drive roll；
At least one sensor group between intake roller and a pair of of the feed rollers nearest with intake roller, the sensor group packet
The first sensor that first side of paper feeding path is set is included, and second sensing of paper feeding path second side is set
Device；
The control device being connect respectively with each first sensor, second sensor and driving source signal, the control device
The skew direction and deflection of paper are determined according to the sensing signal of the first sensor and second sensor, and according to described
Skew direction and deflection adjust the revolving speed of first pair of feed rollers and/or second pair of feed rollers, make paper be delivered into
It is ajusted before paper bowl.
2. paper feed mechanism according to claim 1, which is characterized in that first pair of feed rollers and second pair of paper feeding
Roller face, and a pair of of conveying roller is consistent with the rotation direction of second pair of conveying roller.
3. paper feed mechanism according to claim 1, which is characterized in that at least one in the drive roll and the driven voller
A is rubber rollers.
4. paper feed mechanism according to claim 1, which is characterized in that in the same sensor group, first sensing
Device and second sensor face.
5. paper feed mechanism according to claim 1 or 4, which is characterized in that the first sensor and second sensing
Device is photoelectric sensor.
6. paper feed mechanism according to claim 1, which is characterized in that the control device includes central processing unit, respectively
The several driving source controllers being connect with central processing unit signal, each driving source controller and a corresponding driving source
Signal connection.
7. paper feed mechanism according to claim 6, which is characterized in that the control device further includes believing with central processing unit
Number connection memory.
8. paper feed mechanism according to claim 1 or 6, which is characterized in that the driving source is motor.
9. a kind of printer, which is characterized in that including carton and print zone, and be connected to the defeated of the carton and the print zone
Paper path, the paper feeding path are arranged just like the described in any item paper feed mechanisms of claim 1-8.
10. printer according to claim 9, which is characterized in that the print zone is provided with air roll and is located at described
Print head above air roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820777925.0U CN208292335U (en) | 2018-05-23 | 2018-05-23 | Paper feed mechanism and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820777925.0U CN208292335U (en) | 2018-05-23 | 2018-05-23 | Paper feed mechanism and printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208292335U true CN208292335U (en) | 2018-12-28 |
Family
ID=64728609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820777925.0U Active CN208292335U (en) | 2018-05-23 | 2018-05-23 | Paper feed mechanism and printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208292335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771510A (en) * | 2021-08-26 | 2021-12-10 | 北京辰光融信技术有限公司 | Printing correction mechanism, printer and printing method |
-
2018
- 2018-05-23 CN CN201820777925.0U patent/CN208292335U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771510A (en) * | 2021-08-26 | 2021-12-10 | 北京辰光融信技术有限公司 | Printing correction mechanism, printer and printing method |
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