CN117656678A - Paper feeding mechanism and continuous paper feeding method for ink-jet printer - Google Patents
Paper feeding mechanism and continuous paper feeding method for ink-jet printer Download PDFInfo
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- CN117656678A CN117656678A CN202311869126.8A CN202311869126A CN117656678A CN 117656678 A CN117656678 A CN 117656678A CN 202311869126 A CN202311869126 A CN 202311869126A CN 117656678 A CN117656678 A CN 117656678A
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Abstract
The invention relates to a paper feeding mechanism of an ink-jet printer, comprising a paper rubbing roller; a paper feed roller; the driving mechanism is in driving connection with the paper feeding roller; a first gear set connected with the pickup roller; the second gear set is connected with the paper feeding roller and is in transmission connection with the first gear set; the clutch gear set is connected between the first gear set and the second gear set in a meshing manner; the separation driver is in transmission connection with the clutch gear set, and the separation clutch gear set is in meshed connection with the first gear set and the second gear set; the pickup roller and the paper feeding roller rotate in opposite directions under the transmission action of the driving mechanism, the first gear set, the second gear set and the clutch gear set. The paper feeding mechanism of the ink-jet printer can simultaneously carry out paper rubbing action and paper feeding action, and can cut off the power of the paper rubbing roller when the paper of the last page of paper in a printing task is fed. The invention also relates to a paper feeding method using the ink-jet printer.
Description
Technical Field
The present invention relates to a paper feeding mechanism of an inkjet printer, and also relates to a continuous paper feeding method of the inkjet printer.
Background
Printers are a commonly used product in daily work and life. In order to realize paper feeding, a paper feeding mechanism of an inkjet printer is arranged in the printer, the paper feeding mechanism of the inkjet printer generally comprises a paper feeding motor, a paper pickup roller, a paper feeding roller and the like which are in driving connection with the paper feeding motor, and based on the paper feeding mechanism, the paper feeding action of the printer generally comprises the following steps: the paper feeding motor rotates reversely to drive the paper rubbing roller to rub paper, so that the paper enters the paper feeding channel, when the paper moves to the paper feeding roller, the paper feeding motor rotates positively, the paper rubbing wheel stops rubbing paper, meanwhile, the paper feeding roller is driven to feed and move the paper, and after the tail of the previous paper is separated from the paper feeding roller, the paper feeding motor rotates reversely to rub the next paper. The cycle repeats, thereby completing the multi-page print job. In the printing operation step, the next sheet of paper needs to wait until the last sheet of paper is printed and discharged, and then the paper can be rubbed.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a paper feeding mechanism of an ink-jet printer, which can simultaneously carry out paper rubbing action and paper feeding action, and simultaneously cut off the power of a paper rubbing roller when the last paper sheet in a printing task, so as to avoid unnecessary paper feeding.
A second technical problem to be solved by the present invention is to provide a continuous paper feeding method of an inkjet printer using a paper feeding mechanism of the inkjet printer.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a paper feeding mechanism of an ink-jet printer includes
A pickup roller;
a paper feed roller;
the driving mechanism is in driving connection with the paper feeding roller;
the method is characterized in that: and also comprises
A first gear set connected with the pickup roller;
the second gear set is connected with the paper feeding roller and is in transmission connection with the first gear set;
the clutch gear set is connected between the first gear set and the second gear set in a meshing manner;
the separation driver is in transmission connection with the clutch gear set, and the separation clutch gear set is in meshed connection with the first gear set and the second gear set;
the pickup roller and the paper feeding roller rotate in opposite directions under the transmission action of the driving mechanism, the first gear set, the second gear set and the clutch gear set.
The improved clutch comprises a bracket, wherein the first gear set, the second gear set, the clutch gear set and the separation driver are arranged on the bracket.
As an improvement, the clutch gear set comprises a first gear and a second gear, wherein the first gear is rotatably connected to the bracket and meshed with the second gear set, the second gear is connected with the first gear in a meshed manner through a connecting seat in a swinging manner relative to the first gear, and the first gear can be meshed with and separated from the first gear set on the basis of swinging;
the split driver is associated with a second gear drive.
As an improvement, a connecting shaft is arranged on the connecting seat, and the second gear is sleeved on the connecting shaft;
the support is provided with a guide hole matched with the swing path of the second gear, the connecting shaft is limited in the guide hole, and the separation driver can drive the connecting shaft to rotate anticlockwise so as to drive the second gear to separate from the first gear set.
The separating driver comprises a poking wheel and a poking rod, wherein the poking wheel is rotationally connected to the bracket through a first torsion spring, the first torsion spring drives the poking wheel to rotate anticlockwise to push the second gear to rotate in a direction separated from the first gear set, and the poking rod is in transmission connection with the poking wheel and can poke the poking wheel to rotate along the pointer to a position which does not interfere the second gear.
As an improvement, a clamping part is also formed on the peripheral wall of the dial wheel;
the shifting lever is rotatably connected to the bracket and positioned at the left side of the shifting wheel, and the lower end of the shifting lever is provided with a locking part which can be locked with the clamping part;
the shifting lever can rotate anticlockwise based on external force and lock with the shifting wheel, so that the shifting wheel is positioned at a position where the shifting wheel does not interfere with the second gear; the shift lever can be rotated clockwise based on external force to release the lock catch with the shift wheel.
As an improvement, the separation driver further comprises a driving component for driving the deflector rod to rotate anticlockwise, and the driving component is arranged on the bracket and is positioned between the deflector wheel and the deflector rod.
As an improvement, the driving assembly further comprises a third gear, a fourth gear and a pressing arm;
the third gear is rotatably connected to the bracket and is connected with one gear in the second gear set;
the fourth gear is connected to the third gear in a swinging way through a connecting rod and is meshed with the third gear, the peripheral wall of the poking wheel is provided with meshing teeth, and the fourth gear can be meshed with and separated from the poking wheel through the meshing teeth based on swinging;
the middle part of the pressing arm is rotationally connected to the bracket through a second torsion spring, the lower end of the pressing arm can be meshed with and separated from the fourth gear based on rotation, the upper end of the pressing arm is propped against the upper end of the deflector rod, and the second torsion spring has a trend of driving the pressing arm to rotate anticlockwise and be out of a meshed state with the fourth gear.
As an improvement, the upper end of the deflector rod is arranged corresponding to the maintenance position of the carriage, and the deflector rod can rotate clockwise based on the triggering of the carriage.
The invention solves the second technical problem by adopting the technical proposal that: a continuous paper feed method for an inkjet printer, characterized by: using a paper feed mechanism as described above;
when n sheets of paper are printed, n is a natural number, n is more than or equal to 2, and when the printing work of the previous n-1 sheets is carried out, the clutch gear set is in a meshed state with the first gear set and the second gear set, the driving mechanism drives the paper feeding roller to rotate forward to feed paper to work, and simultaneously drives the first gear set, the second gear set and the clutch gear set to rotate in a transmission way to drive the paper rubbing roller to rotate reversely to carry out paper rubbing work;
when the printing work of the nth sheet paper is carried out, the separation driver acts on the clutch gear set to separate the engagement of the clutch gear set, the first gear set and the second gear set, the driving mechanism drives the paper feeding roller to rotate positively to feed the paper to work, and the paper pickup roller stops rotating based on transmission separation.
Compared with the prior art, the invention has the advantages that: according to the paper feeding mechanism of the ink-jet printer and the corresponding paper feeding method, relative reverse rotation of the paper feeding roller and the paper pickup roller is realized based on transmission, so that paper can be picked up while paper is fed, and paper pickup action is not required after the tail of the previous paper is separated from the paper feeding roller, namely, synchronization of paper pickup action and paper feeding action is realized, paper feeding efficiency is improved, and time waiting for printing is reduced.
On the basis, the clutch gear set is matched with the separation driver, so that the transmission clutch function of the paper pickup roller can be realized, and the power of the paper pickup roller can be cut off through the driving of the separation driver to the clutch gear set when the last paper sheet is printed, thereby reducing the energy consumption on one hand and avoiding unnecessary paper feeding on the other hand.
Drawings
Fig. 1 is a perspective view of an inkjet printer in a multi-page continuous printing state according to an embodiment of the present invention.
Fig. 2 is another view of fig. 1.
Fig. 3 is a view of the paper feeding mechanism in the state of fig. 1.
Fig. 4 is another view of fig. 3.
Fig. 5 is a perspective view of a clutch gear set and a first gear set in a separated state according to an embodiment of the present invention.
Fig. 6 is another view of fig. 5.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 6, the paper feed mechanism of the inkjet printer in the present embodiment includes a pickup roller 1, a feed roller 2, a driving mechanism 3, a first gear train 4, a second gear train 5, a clutch gear train 6, a separation driver 7, and a bracket 8. The paper feed mechanism is integrally provided on the base 9 of the printer.
Specifically, the pickup roller 1 is rotatably disposed on the base 9, and the pickup roller 1 has a pickup roller that contacts the upper surface of the paper, and drives the paper into a paper feed path in the printer based on the rotation of the pickup roller 1.
The paper feeding roller 2 is rotatably arranged on the base 9, and the paper feeding roller 2 is usually arranged below the paper feeding channel, namely, the paper feeding roller 2 drives the paper to complete the paper feeding action through rolling contact with the lower surface of the paper. That is, when the front edge of the paper moves to the position of the paper feeding roller 2 under the action of the pickup roller 1, the paper is driven to continue to advance by the rotation of the paper feeding roller 2.
Since the pickup roller 1 and the feed roller 2 are different in the surface that contacts the paper, when the pickup roller 1 and the feed roller 2 perform the corresponding pickup action and feed action, the pickup roller 1 rotates in the opposite direction to the feed roller 2, that is, one rotates clockwise and the other rotates counterclockwise. Based on the working characteristics, in the prior art, due to the arrangement of the set of driving mechanism 3, the actions of rubbing and feeding paper can be accomplished in sections, and the actions of rubbing and feeding paper can not be performed simultaneously. The paper feeding mechanism of the ink jet printer in the embodiment can realize the paper rubbing action and the paper feeding action simultaneously, and further can continuously feed paper without stopping the paper feeding action in the middle when multi-page printing is performed.
The driving mechanism 3 is in driving connection with the paper feeding roller 2, the driving mechanism 3 comprises a motor and a transmission gear set connected to the driving end of the motor, and an output gear of the transmission gear set is sleeved on the first end of the paper feeding roller 2, so that the motor can realize rotation driving of the paper feeding roller 2 through the transmission gear set.
The bracket 8 is arranged on the base 9 and is positioned outside the ends of the pickup roller 1 and the feed roller 2. The first gear set 4, the second gear set 5, the clutch gear set 6 and the separating driver 7 are all arranged on a bracket 8.
The first gear set 4 is connected with the pickup roller 1, and specifically, an output gear of the first gear set 4 is sleeved at the end of the pickup roller 1.
The second gear set 5 is connected with the paper feeding roller 2, specifically, an input gear of the second gear set 5 is sleeved at the second end of the paper feeding roller 2, and the second gear set 5 and the first gear set 4 are arranged on the same side, so that transmission between the second gear set and the first gear set is facilitated.
The clutch gear set 6 is in meshed connection between the first gear set 4 and the second gear set 5. The disengaging drive 7 is in driving connection with the clutch gear set 6 and the disengageable clutch gear set 6 is in meshed connection with the first gear set 4 and the second gear set 5.
The first gear set 4, the second gear set 5 and the clutch gear set 6 are specifically arranged, so that the pickup roller 1 and the feed roller 2 rotate in opposite directions under the transmission action of the driving mechanism 3, the first gear set 4, the second gear set 5 and the clutch gear set 6.
Specifically, the clutch gear set 6 includes a first gear 61 and a second gear 62, the first gear 61 is rotatably connected to the carrier 8 and engaged with the second gear set 5, the second gear 62 is swingably connected to the first gear 61 via a connection seat 63 in engagement with the first gear 61, and the first gear 61 is capable of being engaged with and disengaged from the first gear set 4 based on the swing. The split drive 7 is in driving connection with a second gear 62. In order to facilitate assembly and interaction of the separation driver 7 and the second gear 62, a connecting shaft 631 is arranged on the connecting seat 63, and the second gear 62 is sleeved on the connecting shaft 631. The support 8 is provided with a guide hole 81 matched with the swing path of the second gear 62, the connecting shaft 631 is limited in the guide hole 81, and the guide hole 81 can ensure the stability of the second gear 62 during swing. The separation driver 7 in this embodiment can push the connection shaft 631 to rotate counterclockwise, so as to drive the second gear 62 to swing counterclockwise relative to the first gear 61, and further separate from the first gear set 4. At this time, the first gear train 4 and the second gear train 5 are disconnected from the transmission, and the pickup roller 1 loses its power source and stops rotating.
When the separating driver 7 does not interfere with the connecting shaft 631, the second gear set 5 is driven to rotate based on the normal rotation of the paper feeding roller 2, and further, the first gear 61 is driven to rotate, and the second gear 62 is driven to swing clockwise relative to the first gear 61, so that the second gear 62 maintains the meshing relationship with the first gear set 4, further, the meshing transmission between the clutch gear set 6 and the first gear set 4 and the second gear set is realized, and further, the transmission between the paper feeding roller 2 and the paper rubbing roller 1 is realized. The paper feeding roller 2 feeds and advances paper, and the paper pickup roller 1 can simultaneously carry out paper pickup, so that the paper pickup roller 1 does not need to wait for the paper feeding operation of the paper feeding roller 2 to be completed and then carry out paper pickup, and further, when a multi-page task is printed, continuous printing operation is ensured.
In order to avoid unnecessary feeding of paper due to the paper rubbing action when printing the last sheet of paper, the clutch gear set 61 is driven by the separating driver 7 to separate from the first gear set 4 in the embodiment, so that only the paper feeding action can be performed without the paper rubbing action.
The separating driver 7 in this embodiment includes a thumb wheel 71 and a thumb lever 72, where the thumb wheel 71 is rotatably connected to the bracket 8 by a first torsion spring 711, and the first torsion spring 711 drives the thumb wheel 71 to rotate counterclockwise to push the second gear 62 to rotate in a direction separating from the first gear set 4, and in this embodiment, the second gear 62 needs to swing counterclockwise when separated from the first gear set 4. The dial 71 in the present embodiment achieves the separation pushing of the second gear 62 by acting on the connection shaft 631, and the dial 71 has a tendency to separate the second gear 62 from the first gear set 4 by pushing the second gear 62 by the first torsion spring 711. In this embodiment, in order to realize the transmission between the paper feeding roller 2 and the paper rubbing roller 1, the driving lever 72 is required to act on the driving wheel 71, so as to push the driving wheel 71 to rotate clockwise to a position not interfering with the connecting shaft 631, namely: the driving lever 72 is in transmission connection with the driving wheel 71, so that the driving wheel 71 can be driven to rotate along the pointer to a position which does not interfere with the second gear 62, at this time, the engagement connection between the clutch gear set 6 and the first gear set 4 can be ensured, and further, the transmission between the paper feeding roller 2 and the paper rubbing roller 1 is realized.
Specifically, the interaction structure of the thumb wheel 71 and the thumb lever 72 is: a locking portion 712 is also formed on the peripheral wall of the click wheel 71. The shift lever 72 is rotatably connected to the bracket 8 and located at the left side of the shift wheel 71, and a locking portion 721 capable of locking with the locking portion 712 is provided at the lower end of the shift lever 72. The shift lever 72 may also be rotated counterclockwise based on an external force to lock with the shift wheel 71 such that the shift wheel 71 is in a position not interfering with the second gear 62, i.e., when the shift lever 72 and the shift wheel 71 are locked, the shift wheel 71 is maintained in a position not interfering with the second gear 62. While the structure for driving the lever 72 to rotate counterclockwise may employ various driving structures in the prior art.
In addition, the lever 72 may also be rotated clockwise based on an external force to release the lock with the thumb wheel 71. When the lock catch of the thumb wheel 71 is released by the thumb lever 72, the thumb wheel 71 can rotate anticlockwise under the action of the first torsion spring 711, so as to push the connecting shaft 631, and accordingly drive the second gear 62 to swing anticlockwise relative to the first gear 61, so that the second gear 62 is separated from the first gear set 4. In this embodiment, the upper end of the lever 72 is disposed near the maintenance position of the carriage, and the lever 72 can rotate clockwise based on the triggering of the carriage, i.e. when the carriage moves to the maintenance position, the lever 72 is triggered, and the lever 72 is further driven to rotate clockwise, and the locking portion 721 on the lever 72 is disengaged from the locking portion 712 of the wheel 71, so as to release the locking between the lever 72 and the wheel 71.
The split driver 7 in this embodiment further comprises a drive assembly 73 for driving the lever 72 in a counter-clockwise rotation, which drive assembly 73 is arranged on the carrier 8 between the thumb wheel 71 and the lever 72. The drive assembly 73 further includes a third gear 731, a fourth gear 732, and a pressing arm 733. The third gear 731 is rotatably connected to the carrier 8 and to one of the gears of the second gear set 5. The fourth gear 732 is swingably connected to the third gear 731 via a link 734, a shaft is provided on the link 734, the fourth gear 732 is sleeved on the shaft and is meshed with the third gear 731, a meshing gear 713 is provided on a peripheral wall of the dial 71, and the fourth gear 732 is meshed with and separated from the dial 71 via the meshing gear 713 based on the swing. The middle part of the pressing arm 733 is rotatably connected to the bracket 8 through a second torsion spring 7331, the lower end of the pressing arm 733 can be engaged with and separated from the fourth gear 732 based on rotation, the upper end of the pressing arm 733 abuts against the upper end of the deflector 72, and the second torsion spring 7331 has a tendency to drive the pressing arm 733 to rotate counterclockwise to disengage from the engagement state with the fourth gear 732.
In this embodiment, when the driving lever 72 is specifically required to be driven to rotate anticlockwise and lock with the thumb wheel 71, the motor in the driving mechanism 3 is reversed, so as to drive the paper feeding roller 2 to rotate in a direction opposite to the paper feeding direction, the paper feeding roller 2 also drives the second gear set 5 to rotate, based on that one gear in the second gear set 5 is connected with the third gear 731, the third gear 731 is also driven to rotate clockwise, the fourth gear 732 is correspondingly driven to swing clockwise relative to the third gear 731, meanwhile, based on the meshing transmission of the third gear 731, the fourth gear 732 rotates anticlockwise, based on the meshing relationship between the fourth gear 732 and the pressing arm 733, the upper end of the pressing arm 733 is driven to rotate anticlockwise, the upper end of the pressing arm 733 is driven to press the upper end of the thumb lever 72 in anticlockwise direction, and then the thumb lever 72 is driven to rotate anticlockwise, so that the lower end of the thumb lever 72 approaches the position of the thumb wheel 71. Simultaneously, as the fourth gear 732 swings clockwise, the fourth gear 732 is meshed with the meshing teeth 713 on the dial wheel 71, and simultaneously, as the fourth gear 732 rotates anticlockwise, the dial wheel 71 is dialed to rotate clockwise. And based on the anticlockwise rotation of the deflector rod 72 and the clockwise pointer rotation of the deflector wheel 71, the locking part 721 on the deflector rod 72 contacts the clamping part 712 of the deflector wheel 71 to further lock each other, at this time, the motor in the driving mechanism 3 stops rotating, so that the deflector wheel 71 is ensured to be at a position not interfering with the second gear 62 under the locking action of the deflector rod 72 on the deflector wheel 71, and accordingly, based on the foregoing, the clutch gear set 6 can realize the engagement with the first gear set 4 in this state to realize the transmission between the paper feeding roller 2 and the paper rubbing roller 1.
Then, with the forward rotation of the motor in the driving mechanism 3, the third gear 731 is driven to rotate counterclockwise, the corresponding fourth gear 732 swings counterclockwise relative to the third gear 731 and is separated from the thumb wheel 71, and meanwhile, the pressing arm 733 is also separated from the engagement with the pressing arm 733, and the pressing arm 733 keeps the tendency of pressing the thumb lever 72 in the counterclockwise direction based on the action of the second torsion spring 7331, so that the thumb lever 72 still keeps the locking action on the thumb wheel 71 until the wordline triggers the thumb lever 72 to release the locking action of the thumb lever 72 on the thumb wheel 1.
The continuous paper feeding method of the ink-jet printer using the paper feeding mechanism comprises the following steps.
When n sheets of paper are printed, n is a natural number, n is more than or equal to 2, and when the printing work of the previous n-1 sheets is carried out, the clutch gear set 6 is in a meshed state with the first gear set 4 and the second gear set 5, the driving mechanism 3 drives the paper feeding roller 2 to rotate forward to feed paper, and simultaneously drives the first gear set 4, the second gear set 5 and the clutch gear set 6 to rotate in a transmission way to drive the paper rubbing roller 1 to rotate reversely to carry out paper rubbing work.
When the n-th sheet printing is performed, the separation driver 7 acts on the clutch gear group 6 to separate the engagement of the clutch gear group 6 with the first gear group 4 and the second gear group 5, the driving mechanism 3 drives the paper feeding roller 2 to rotate forward to feed the travelling paper, and the paper pickup roller 1 stops rotating based on the separation of the transmission.
As shown in fig. 5 and 6, specifically, when the inkjet printer is in a ready state for starting up, the carriage is at a carriage maintenance position, at this time, the carriage triggers the shift lever 72 to rotate clockwise, the shift lever 72 and the shift wheel 71 are in a disengaged state, the shift wheel 71 rotates counterclockwise to the middle position of the guide hole 81 under the action of the first torsion spring 711, and the corresponding shift wheel 71 pushes the connecting shaft 631 to the middle position of the guide hole 81, so as to drive the second gear 62 to be in a separated state from the first gear set 4. Meanwhile, based on the clockwise pointer rotation of the deflector rod 72, the first end of the deflector rod has a clockwise pointer rotation driving force on the upper end of the pressing arm 733, the pressing arm 733 clockwise rotates to be in a meshed state with the fourth gear 732, and at the moment, the fourth gear 732 is also in a separated state with the deflector wheel 71.
As shown in fig. 3 and 4, when n sheets of paper are required to be printed, the carriage leaves the carriage maintenance position, the clockwise pointer rotation drive to the lever 72 is released, and simultaneously the pressing arm 733 also forms a pressing force to the upper end of the lever 72 based on the counterclockwise pressing force of the second torsion spring 7331, which urges the lever 72 to rotate counterclockwise. Before printing starts, the motor in the driving mechanism 3 is controlled to rotate reversely, and as described above, the shift lever 72 and the shift wheel 71 are locked, so that the interference of the shift wheel 71 to the second gear 62 via the connecting shaft 631 is released. At the same time, the non-interference state of the thumb wheel 71 to the second gear 62 is ensured, also based on the locking of the thumb lever 72 and the thumb wheel 71.
Then, the printing operation can be started, namely, the motor in the driving mechanism 3 is controlled to rotate positively, the paper feeding roller 2 is driven to rotate, the second gear set 5 is driven to rotate simultaneously, the second gear set 5 can drive the first gear 61 to rotate clockwise, the second gear 62 is correspondingly driven to swing along the pointer relative to the first gear 61, and further the engagement of the first gear 61 and the first gear set 4 is realized, so that the paper feeding roller 1 is driven. Thus, the paper rubbing action and the paper feeding action are performed simultaneously. The operating state is maintained until the printing job of the first n-1 sheets is completed.
As shown in fig. 5 and 6, when the printing operation of the nth sheet is required, the carriage is controlled to move to the carriage maintenance position, the carriage is pushed against the shift lever 72 by the carriage top to rotate the shift lever 72 clockwise, the corresponding shift lever 72 is unlocked from the shift wheel 71, the shift wheel 71 rotates counterclockwise under the action of the first torsion spring 711 to push the connecting shaft 631 to swing counterclockwise, and the corresponding second gear 62 swings clockwise relative to the first gear 61 and is further separated from the first gear set 4.
Then the carriage moves out of the carriage maintenance position, the motor in the driving mechanism 3 continues to rotate positively, but only the paper feeding roller 2 is driven to rotate at the moment, and the paper pickup roller 1 stops rotating, so that unnecessary paper pickup is avoided.
According to the paper feeding mechanism of the ink-jet printer and the corresponding paper feeding method, relative reverse rotation of the paper feeding roller 2 and the paper rubbing roller 1 is realized based on transmission, so that paper can be rubbed while paper is fed, and paper rubbing action is not required after the tail of the previous paper is separated from the paper feeding roller 2, namely synchronization of paper rubbing action and paper feeding action is realized, paper feeding efficiency is improved, and printing waiting time is shortened.
On the basis, the clutch gear set 6 is matched with the separation driver 7, so that the transmission clutch function of the paper pickup roller 1 can be realized, and the power of the paper pickup roller 1 can be cut off through the driving of the separation driver 7 to the clutch gear set 6 when the last paper sheet is printed, thereby reducing the energy consumption on one hand and avoiding unnecessary paper feeding on the other hand.
In the description and claims of the present invention, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", "clockwise", "counterclockwise", etc., are used to describe various example structural parts and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the invention may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.
Claims (10)
1. A paper feeding mechanism of an ink-jet printer includes
A pickup roller (1);
a paper feed roller (2);
a driving mechanism (3) which is in driving connection with the paper feeding roller (2);
the method is characterized in that: and also comprises
A first gear set (4) connected with the pickup roller (1);
the second gear set (5) is connected with the paper feeding roller (2) and is in transmission connection with the first gear set (4);
a clutch gear set (6) which is in meshed connection between the first gear set (4) and the second gear set (5);
a separation driver (7) which is in transmission connection with the clutch gear set (6) and can separate the engagement connection of the clutch gear set (6) with the first gear set (4) and the second gear set (5);
the pickup roller (1) and the feed roller (2) rotate in opposite directions under the transmission action of the driving mechanism (3), the first gear set (4), the second gear set (5) and the clutch gear set (6).
2. The paper feed mechanism of an inkjet printer according to claim 1, wherein: the clutch gear set is characterized by further comprising a support (8), wherein the first gear set (4), the second gear set (5), the clutch gear set (6) and the separation driver (7) are arranged on the support (8).
3. The paper feed mechanism of an inkjet printer according to claim 2, wherein: the clutch gear set (6) comprises a first gear (61) and a second gear (62), the first gear (61) is rotatably connected to the bracket (8) and meshed with the second gear set (5), the second gear (62) is connected with the first gear (61) in a meshed manner through a connecting seat (63) in a swinging manner relative to the first gear (61), and the first gear (61) can be meshed with and separated from the first gear set (4) on the basis of swinging;
the split drive (7) is in driving connection with a second gear (62).
4. A paper feed mechanism for an inkjet printer according to claim 3 wherein: a connecting shaft (631) is arranged on the connecting seat (63), and the second gear (62) is sleeved on the connecting shaft (631);
the support (8) is provided with a guide hole (81) matched with the swing path of the second gear (62), the connecting shaft (631) is limited in the guide hole (81), and the separation driver (7) can drive the connecting shaft (631) to rotate anticlockwise so as to drive the second gear (62) to be separated from the first gear set (4).
5. The paper feed mechanism of an inkjet printer according to claim 3 or 4, wherein: the separating driver (7) comprises a poking wheel (71) and a poking rod (72), the poking wheel (71) is rotationally connected to the bracket (8) through a first torsion spring (711), the first torsion spring (711) is provided with a position which drives the poking wheel (71) to rotate anticlockwise and pushes the second gear (62) to rotate in a direction separated from the first gear set (4), and the poking rod (72) is in transmission connection with the poking wheel (71) and can poke the poking wheel (71) to rotate clockwise to a position which does not interfere the second gear (62).
6. The paper feed mechanism of an inkjet printer according to claim 5, wherein: a clamping part (712) is also formed on the peripheral wall of the thumb wheel (71);
the deflector rod (72) is rotatably connected to the bracket (8) and positioned at the left side of the deflector wheel (71), and the lower end of the deflector rod (72) is provided with a locking part (721) which can be locked with the clamping part (712);
the deflector rod (72) can rotate anticlockwise based on external force and is locked with the deflector wheel (71) so that the deflector wheel (71) is positioned at a position which does not interfere with the second gear (62); the shift lever (72) can be rotated clockwise based on an external force to release the lock catch with the shift wheel (71).
7. The paper feed mechanism of an inkjet printer according to claim 6, wherein: the separation driver (7) further comprises a driving assembly (73) for driving the deflector rod (72) to rotate anticlockwise, and the driving assembly (73) is arranged on the bracket (8) and is positioned between the deflector wheel (71) and the deflector rod (72).
8. The paper feed mechanism of an inkjet printer according to claim 7, wherein: the driving assembly (73) further comprises a third gear (731), a fourth gear (732) and a pressing arm (733);
the third gear (731) is rotatably connected to the bracket (8) and is connected to one gear of the second gear set (5);
the fourth gear (732) is connected to the third gear (731) in a swinging way through a connecting rod (734) and is in meshed connection with the third gear (731), the circumferential wall of the dial wheel (71) is provided with a meshed tooth (713), and the fourth gear (732) can be meshed with and separated from the dial wheel (71) through the meshed tooth (713) on the basis of swinging;
the middle part of the pressing arm (733) is rotationally connected to the bracket (8) through a second torsion spring (7331), the lower end of the pressing arm (733) can be meshed with and separated from the fourth gear (732) based on rotation, the upper end of the pressing arm (733) is propped against the upper end of the deflector rod (72), and the second torsion spring (7331) has a trend of driving the pressing arm (733) to rotate anticlockwise and be out of a meshed state with the fourth gear (732).
9. A paper feeding mechanism of an inkjet printer according to any one of claims 6 to 8, wherein: the upper end of the deflector rod (72) is arranged corresponding to the maintenance position of the character car, and the deflector rod (72) can rotate clockwise based on the triggering of the character car.
10. A continuous paper feed method for an inkjet printer, characterized by: use of the paper feeding mechanism according to any one of claims 1 to 9;
when n sheets of paper are printed, n is a natural number, n is more than or equal to 2, and when the printing work of the previous n-1 sheets is carried out, the clutch gear set (6) is in a meshed state with the first gear set (4) and the second gear set (5), the driving mechanism (3) drives the paper feeding roller (2) to rotate forwards to feed paper, and meanwhile, the first gear set (4), the second gear set (5) and the clutch gear set (6) are driven to rotate in a transmission way to drive the paper rubbing roller (1) to rotate reversely to carry out paper rubbing work;
when the printing work of the nth sheet paper is carried out, the separation driver (7) acts on the clutch gear group (6) to separate the engagement of the clutch gear group (6) with the first gear group (4) and the second gear group (5), the driving mechanism (3) drives the paper feeding roller (2) to rotate positively to feed the paper to work, and the paper rubbing roller (1) stops rotating based on transmission separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311869126.8A CN117656678A (en) | 2023-12-30 | 2023-12-30 | Paper feeding mechanism and continuous paper feeding method for ink-jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311869126.8A CN117656678A (en) | 2023-12-30 | 2023-12-30 | Paper feeding mechanism and continuous paper feeding method for ink-jet printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117656678A true CN117656678A (en) | 2024-03-08 |
Family
ID=90086467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311869126.8A Pending CN117656678A (en) | 2023-12-30 | 2023-12-30 | Paper feeding mechanism and continuous paper feeding method for ink-jet printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117656678A (en) |
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2023
- 2023-12-30 CN CN202311869126.8A patent/CN117656678A/en active Pending
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