CN102616006B - Flat-bed printer - Google Patents
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- CN102616006B CN102616006B CN201210066420.0A CN201210066420A CN102616006B CN 102616006 B CN102616006 B CN 102616006B CN 201210066420 A CN201210066420 A CN 201210066420A CN 102616006 B CN102616006 B CN 102616006B
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Abstract
The invention discloses a flat-bed printer which comprises a paper guide plate, a left side plate, a right side plate and a support seat, wherein a front upper paper guide base provided with a paper pickup star wheel is fixedly arranged on the paper guide plate; an ink jet head is arranged on the support seat; a front paper guide roller which is positioned in front of the ink jet head and is matched with the paper pickup star wheel is arranged between the left side plate and the right side plate; a top plate is hinged to the upper paper guide base; a batten is formed on the top plate; a front paper pickup roller which can be lifted along with the action of the top plate is arranged on the top plate; the front paper pickup roller penetrates through the square hole in the front upper paper guide base and then is matched with the front paper guide roller; an eccentric wheel abutted against the bottom end surface of the batten is arranged on the right side plate; a gear is formed on the side wall of the eccentric wheel; the gear is connected with the output end of a motor on the right side plate through a gear set; a rear paper guide roller positioned at the rear part of the ink jet head is also arranged between the left side plate and the right side plate; a rear upper paper guide base is fixedly arranged on the bottom side of the support seat; and a rear paper pickup roller matched with the rear paper guide roller is arranged on the rear upper paper guide base.
Description
Technical field
The present invention relates to a kind of printer, particularly a kind of paper feed channel is the flatbed printer that yi word pattern, print media go out before advancing.
Background technology
Traditional ink-jet printer because of the contact area of pocket-wheel and print media few, the frictional force of generation is little, if cannot guarantee printing precision while relying on pocket-wheel paper feeding to print below shower nozzle, if there is the paper-sheets rolling wheel long-pending compared with large contact surface and pocket-wheel is replaced with print media, when paper delivery, can cause paper-sheets rolling wheel to scratch not dry ink marks, make image fault, the ink marks being simultaneously bonded on paper-sheets rolling wheel also can be stained the paper of process below, for this reason, paper feed channel in conventional ink jet printers is designed to L-type or C type, as depicted in figs. 1 and 2, print media 1A is entered printer and is driven paper by some paper-sheets rolling wheel 2A by rear (L-type) or below (the C type) of printer, make top of form arrive the below of ink gun 3A, then implement print job, finally utilize pocket-wheel 4A that print media is derived from printer front end, this C type or L-type structure make the file after printing avoid paper-sheets rolling wheel 2A, avoided not dry ink marks on print media to be scratched.But, the paper feed passage of this L-type or C type cannot be from front end paper feed, and the pliability of print media is had to certain restriction, can paper feed or paper feed failure for thicker print media, easily cause paper jam phenomenon, also more serious to the wearing and tearing of the related components of printer, shortened service life of printer, and complex structure, takes up room.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of flatbed printer with the paper feed passage of yi word pattern, the restriction that can reduce to greatest extent print media pliability and compactness rational in infrastructure, easy for installation, long service life.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of flatbed printer, it draws together lateral paper guide, left plate, right plate and bearing, on described lateral paper guide, be fixed with and which is provided with the front upper paper substrate seat of leading of rubbing paper pocket-wheel with the hands, ink gun is installed on bearing, the leading paper bowl that is positioned at ink gun the place ahead and coordinates with stranding paper pocket-wheel is installed between left and right side plate, on described, lead on paper substrate seat and be hinged with top board, on top board, be shaped with batten and be provided with and can move and the front paper-sheets rolling wheel of lifting with top board, front paper-sheets rolling wheel coordinates with leading paper bowl through after front upper square opening of leading on paper substrate seat; Described right plate is provided with the eccentric wheel of apical grafting on batten bottom face, on eccentric sidewall, forms gear, and by gear train, the output with the motor on right plate connects described gear; The rear dancing roll that is positioned at ink gun rear is also installed between described left and right side plate, and the bottom side of bearing is fixed with on rear and leads paper substrate seat, leads on rear the rear paper-sheets rolling wheel coordinating with rear dancing roll is installed on paper substrate seat.
Improvement as technique scheme, described top board is provided with groove, in groove, be shelved with on its sidewall and be shaped with and be positioned at groove trough rim along the paper-sheets rolling wheel frame of the journal stirrup of top, front paper-sheets rolling wheel is rotationally connected with the bottom of paper-sheets rolling wheel frame, the top of paper-sheets rolling wheel frame is connected with the first stage clip, and the other end apical grafting of the first stage clip is led the pressing plate bottom on paper substrate seat on being installed on.
Further improvement as technique scheme, described stranding paper pocket-wheel is by toothed wheel and be injection-moulded in smooth in toothed wheel and take turns and form and be arranged in front upper mounting groove of leading paper substrate seat by elastic shaft, the smooth top apical grafting of taking turns has briquetting, the bottom face of briquetting is provided with the groove for accommodating toothed wheel, the top of described briquetting is connected with the second stage clip, and the other end apical grafting of the second stage clip is in pressing plate bottom.
Further, the stranding paper pocket-wheel on described elastic shaft is double wheel.
Preferably, described top board is articulated with front upper leading on paper substrate seat by rotating shaft, and rotating shaft is provided with the first slot for the top board of pegging graft.
Further, on described top board, be shaped with flange, rotating shaft is provided with the second slot for the flange of pegging graft.
Further, be shaped with L-type batten on described rotating shaft, the minor face of L-type batten buckles in aperture corresponding with it on top board.
Preferably, the top end face projection of described right plate is useful on the gripper shoe of setting-up eccentricity wheel, and eccentric sidewall projection has the projection that can block right plate top end face with eccentric swing.
Preferably, described batten is provided with extension spring, and the other end of extension spring is connected in the gear train rotating shaft on right plate.
Further, described front upper lead on paper substrate seat, to be also provided with to be positioned at rub paper pocket-wheel and front paper-sheets rolling wheel with the hands along the guiding pocket-wheel at paper feed direction rear.
The invention has the beneficial effects as follows: the present invention is by leading on paper substrate seat front upper that arrange can be according to the front paper-sheets rolling wheel of the automatic lifting of turnover paper state of printer, making printer turnover paper share a passage is yi word pattern paper feed channel, abandon L-type or the C type paper feed channel pattern in conventional ink jet printers, reduced to greatest extent the restriction to print media pliability; In addition, because of paper-sheets rolling wheel with to rub paper pocket-wheel with the hands be elastic floating, can process easily thicker print media, the wearing and tearing of the print media that also can reduce different-thickness simultaneously to related components on printer, reduce or have avoided the generation of paper jam phenomenon.The present invention's compactness rational in infrastructure, easy for installation, simple to operate, cost is low, long service life, the print media that is especially applicable to going out before advancing is as invoice etc.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the rough schematic view of L-type paper feed channel in conventional ink jet printers;
Fig. 2 is the rough schematic view of C type paper feed channel in conventional ink jet printers;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the partial enlarged drawing of A in Fig. 3;
Fig. 5 is the structural representation that the present invention watches from bottom side;
Fig. 6 is that the present invention hides ink gun, front upperly leads paper substrate seat, leads the structural representation after paper substrate seat and bearing on rear;
Fig. 7 be in the present invention front upper lead paper substrate seat and upper related components thereof from bottom side the i.e. schematic diagram of contiguous print media unilateral observation;
Fig. 8 is the partial enlarged drawing of B in Fig. 7;
Fig. 9 is the structural representation of center platen of the present invention;
Figure 10 is that in the present invention, the front upper paper substrate seat of leading hides the mounting structure schematic diagram after pressing plate;
Figure 11 is the partial enlarged drawing of C in Figure 10;
Figure 12 is the partial enlarged drawing of D in Figure 10;
Figure 13 is the structure scheme of installation of paper-sheets rolling wheel frame and its compression spring in the present invention;
Figure 14 is the structure scheme of installation of paper-sheets rolling wheel frame and front paper-sheets rolling wheel in the present invention;
Figure 15 is the mounting structure schematic diagram of rubbing paper pocket-wheel and its upper holder block and the second stage clip in the present invention with the hands;
Figure 16 is another angle schematic diagram of Figure 15;
Figure 17 is the structural representation of top board in the present invention;
Figure 18 is another angle schematic diagram of Figure 17;
Figure 19 is front upper structural representation of leading paper substrate seat in the present invention;
Figure 20 is the partial enlarged drawing of E in Figure 19;
Figure 21 is the structural representation of rotating shaft in the present invention;
Figure 22 is another angle schematic diagram of Figure 21;
Figure 23 be in the present invention after on lead the mounting structure schematic diagram of paper substrate seat on bearing;
Figure 24 be in the present invention after on lead the structural representation of paper substrate seat and rear paper-sheets rolling wheel;
Figure 25 is the structural representation of right plate and upper related components thereof in the present invention;
Figure 26 is another angle schematic diagram of Figure 25;
Figure 27 is the partial enlarged drawing of F in Figure 26;
Figure 28 is the structural representation of eccentric wheel and gear in the present invention;
Figure 29 is another angle schematic diagram of Figure 28;
Figure 30 is that the present invention hides paper feeding base, bearing, left plate, leads the structural representation after paper substrate seat and ink gun on rear;
Figure 31 is the partial enlarged drawing of G in Figure 31;
Figure 32 is top board cutaway view (analyse and observe and there is shown unshowned pressing plate in Figure 12) in I-I cross section in Figure 12 during not by eccentric wheel jack-up;
Figure 33 is top board cutaway view (analyse and observe and there is shown unshowned pressing plate in Figure 12) in I-I cross section in Figure 12 during by eccentric wheel jack-up;
Figure 34 is the present invention at the paper feed state paper-sheets rolling wheel schematic diagram of paper feed channel during lifting not;
Figure 35 is the schematic diagram of the present invention's paper feed channel after the lifting of paper delivery state paper-sheets rolling wheel.
The specific embodiment
With reference to Fig. 1～Figure 35, a kind of flatbed printer of the present invention, it comprises lateral paper guide 1, left plate 2, right plate 3 and bearing 4, on described lateral paper guide 1, be fixed with and which is provided with the front upper paper substrate seat 6 of leading of rubbing paper pocket-wheel 5 with the hands, lateral paper guide 1 upper surface is raised with sleeve column 1 ', the front upper paper substrate seat 6 of leading is provided with the through hole corresponding to sleeve column 1 ', and the front upper paper substrate seat 6 of leading is socketed on sleeve column 1 '; Described stranding paper pocket-wheel 5 is arranged in front upper mounting groove 62 of leading paper substrate seat 6 by elastic shaft 20, rubs paper pocket-wheel 5 with the hands by toothed wheel 51 and is injection-moulded in smooth in toothed wheel 51 and take turns 52 and form; On described bearing 4, ink gun 7 is installed, left and right side plate 2, the leading paper bowl 8 that is positioned at ink gun 7 the place aheads and coordinates with stranding paper pocket-wheel 5 is installed between 3, described front upper leading is hinged with top board 9 on paper substrate seat 6, described top board 9 is articulated with front upper leading on paper substrate seat 6 by rotating shaft 23, and rotating shaft 23 is provided with the first slot 231 for the top board 9 of pegging graft.Printer is as small-sized office parts, the thinner thickness of its inner top board 9, be approximately 1mm thickness, therefore top board 9 is generally selected sheet metal component, and will mold on the sheet metal component of 1mm thickness, can be more difficult for hinged thick, major axis, therefore top board 9 is articulated with front upper leading on paper substrate seat 6 by rotating shaft 23, certainly, also can follow closely as hinged use at axle of each side riveted joint of top board 9; The front upper paper substrate seat 6 of leading is provided with the deep-slotted chip breaker 64 being formed at front upper convex ridge 63 of leading paper substrate seat 6 surfaces by projection, and after installing pressing plate 19, the upper surface of pressing plate 19 closed arc grooves 64 makes it form a pivot hole to be used as hinged top board 9.
On described top board 9, be shaped with batten 91 and be provided with and can move and the front paper-sheets rolling wheel 10 of lifting with top board 9, top board 9 is provided with groove 92, in groove 92, be shelved with on its sidewall and be shaped with and be positioned at groove 92 trough rims along the paper-sheets rolling wheel frame 17 of the journal stirrup 171 of top, front paper-sheets rolling wheel 10 is rotationally connected with the bottom of paper-sheets rolling wheel frame 17, paper-sheets rolling wheel frame 17 is provided with notched the second deep-slotted chip breaker 172 along the two side of paper feed direction, the gap width of the second deep-slotted chip breaker 172 is little compared with the diameter of deep-slotted chip breaker, the both ends of the surface projection of front paper-sheets rolling wheel 10 has roller bearing 101, by roller bearing 101, front paper-sheets rolling wheel 10 is arranged in the second deep-slotted chip breaker 172 on paper-sheets rolling wheel frame 17,
The other end apical grafting that the top of described paper-sheets rolling wheel frame 17 is connected with the first stage clip 18, the first stage clips 18 is being installed on front upper pressing plate 19 bottoms of leading on paper substrate seat 6.The top end face projection of paper-sheets rolling wheel frame 17 has the sleeve column 173 of socket stage clip 18 use, a blind hole also can be set on the top end face of paper-sheets rolling wheel frame 17 for shelving stage clip 18, pressing plate 19 is fixed on front upper leading on paper substrate seat 6 by screw 191, installs after pressing plate 19, and pressing plate 19 has sealed front upper deep-slotted chip breaker 64 of leading paper substrate seat 6 surfaces, becomes the pivot hole of a hinged use, and the setting of paper-sheets rolling wheel frame 17 compression springs 18, when top board 9 is not lifted, front paper-sheets rolling wheel 10 relies on stage clip 18 to conflict on leading paper bowl 8, also make the front paper-sheets rolling wheel 10 on paper-sheets rolling wheel frame 17 can be according to the thickness automatic telescopic of print media, make whole inkjet printing function process preferably the print media of different-thickness, simultaneously, for thicker print media, because of front paper-sheets rolling wheel 10 upwards liftings, reduced front paper-sheets rolling wheel 10, pressure between print media and leading paper bowl 8 threes, also just make print media less to the frictional force of leading paper bowl 8, the wearing and tearing of print media to the rubber ring that rubs on leading paper bowl 8 have been reduced, extended the service life of leading paper bowl 8.
Described front paper-sheets rolling wheel 10 coordinates with leading paper bowl 8 after passing front upper square opening 61 of leading on paper substrate seat 6.When top board 9 makes progress lifting, the trough rim of the groove 92 on top board 9 contacts together with the journal stirrup 171 on paper-sheets rolling wheel frame 17 and promotes front paper-sheets rolling wheel 10 upwards lifting in square opening 61 that paper-sheets rolling wheel frame 17 drives its lower ends, makes front paper-sheets rolling wheel 10 separated with leading paper bowl 8.
Described right plate 3 is provided with the eccentric wheel 11 of apical grafting on batten 91 bottom faces, forms gear 12 on the sidewall of eccentric wheel 11, and by gear train, the output with the motor 13 on right plate 3 connects described gear 12.At printer during in off working state and paper feed state, conflict with batten 91 in the minor axis limit of eccentric wheel 11, when completing paper feed action and print media need be derived to printer, the mainboard of printer is controlled motor 13 forwards (R in Figure 27 to), motor 13 just can and then rotate by gear set drive gear 12, gear 12 drives eccentric wheel 11 integrated with it to swing, eccentric wheel 11 touches toward major axis limit close with batten 91 from minor axis edge joint, batten 91 just can be by eccentric wheel 11 jack-up, batten 91 drives top board 9 to drive paper-sheets rolling wheel frame 17 and is arranged on the up lifting of front paper-sheets rolling wheel 10 of paper-sheets rolling wheel frame 17 bottoms, front paper-sheets rolling wheel 10 is away from leading paper bowl 8, then printer carries out paper delivery action, after paper delivery has been moved, the mainboard of printer is controlled motor 13 reversions, and batten 91 is conflicted towards the close also final minor axis limit with eccentric wheel 11, minor axis limit of eccentric wheel 11, and front paper-sheets rolling wheel 10 resets, for printing is next time prepared.
The rear dancing roll 14 that is positioned at ink gun 8 rears is also installed between described left and right side plate 2,3, and the bottom side of bearing 4 is fixed with on rear and leads paper substrate seat 15, leads on rear the rear paper-sheets rolling wheel 16 coordinating with rear dancing roll 14 is installed on paper substrate seat 15.By the motor that drives leading paper bowl 8, the gear train by left plate 2 upper ends drives rear dancing roll 14.
The course of work of the present invention is such: a. printer is in off working state and paper feed state: now conflict with batten 91 in the minor axis limit of eccentric wheel 11, front paper-sheets rolling wheel 10 is conflicted on leading paper bowl 8, and under the effect of stage clip 18, leading paper bowl 8 is had to certain pressure, during paper feed, the mechanism of paper that picks up on printer is delivered to print media between front paper-sheets rolling wheel 10 and leading paper bowl 8, print media is at front paper-sheets rolling wheel 10, under the acting in conjunction of stranding paper pocket-wheel 5 and leading paper bowl 8, be sent to printer, the front end of print media is by ink gun 7 belows and enter on rear dancing roll 14, the now frictional force effect of print media paper-sheets rolling wheel 16 and rear dancing roll 14 after front end is subject to, rear end is subject to front paper-sheets rolling wheel 10, under the frictional force effect of stranding paper pocket-wheel 5 and leading paper bowl 8, continued to import printer, when the rear end of print media is left after leading paper bowl 8, print media only still continues to import printer under the effect of rear paper-sheets rolling wheel 16 and rear dancing roll 14, until the print What of print media end arrives the below of ink gun 7, b. print and paper delivery state: when the print What of print media end arrives the below of ink gun 7, leading paper bowl 8 and rear dancing roll 14 rotate backward simultaneously, in leading paper bowl 8 and counter-rotational while of rear dancing roll 14, the mainboard of printer is controlled motor 13 and is rotated, motor 13 rotates by gear set drive gear 12, gear 12 band movable eccentric wheels 11 swing, eccentric wheel 11 is touched close with batten 91 contacts to the major axis limit of eccentric wheel 11 gradually with batten 91 by minor axis edge joint, now batten 91 is by the jack-up that makes progress, top board 9 is upwards lifting simultaneously under the drive of batten 91, upwards top board 9 meetings of lifting are conflicted and drive paper-sheets rolling wheel frame 17 upwards to walk about with the journal stirrup 171 on paper-sheets rolling wheel frame 17 sidewalls, the front paper-sheets rolling wheel 10 of paper-sheets rolling wheel frame 17 bottoms just upwards lifting until front paper-sheets rolling wheel 10 away from leading paper bowl 8, make front paper-sheets rolling wheel 10 can not touch print media, now motor 13 stops operating, ink gun 7 sprays ink dot enforcement printing action at leading paper bowl 8 and counter-rotational while of rear dancing roll 14 on print media, print media moves to printer front end under the opposition of rear dancing roll 14 and rear paper-sheets rolling wheel 16 simultaneously, implement printing limit, limit and derive action, when the front end of print media enters leading paper bowl 8 and its end while not leaving rear dancing roll 14, print media is at rear dancing roll 14 and rear paper-sheets rolling wheel 16 and leading paper bowl 8 and rub with the hands under the acting in conjunction of paper pocket-wheel 5 and derive to printer front end exit, after the end of print media leaves, after dancing roll 14, print media is just finally exported printer under the effect of leading paper bowl 8 and stranding paper pocket-wheel 5, when printer paper delivery, because front paper-sheets rolling wheel 10 does not contact with print media, ink marks on print media can not scratched, on front paper-sheets rolling wheel 10, do not speckle with ink marks and can not stain paper below yet, with respect to L-type and C type paper feed channel, the present invention has realized the yi word pattern paper feed channel on ink-jet printer, from paper feed, print, in the whole process of paper delivery, print media is open and flat all the time, without the bending problem because of print media, consider its pliability, reduced to greatest extent the restriction of ink-jet printer to print media pliability, the thick print media that cannot process for some C types and L-type paper feed channel, this yi word pattern paper feed channel can easily be processed, in addition, this yi word pattern paper feed channel is that paper feed and paper delivery share one and lead paper passage, goes out before realizing the advancing of print media, and is especially suitable for the printing of invoice etc.
Improvement as above-mentioned embodiment, the smooth 52 top apical graftings of taking turns of described stranding paper pocket-wheel 5 have briquetting 21, the bottom face of briquetting 21 is provided with the groove 211 for accommodating toothed wheel 51, and the top of described briquetting 21 is connected with the other end apical grafting of the second stage clip 22, the second stage clips 22 in pressing plate 19 bottoms.The setting of briquetting 21 and the second stage clip 22, make to rub with the hands paper pocket-wheel 5 elasticity and be installed on front upper leading on paper substrate seat 6, when printer paper feed and paper delivery action, rubbing paper pocket-wheel 5 with the hands can be flexible according to the thickness of print media, make for thinner print media, rub paper pocket-wheel 5 with the hands and can compress leading paper bowl 8 downwards, make printer there is enough frictional force print media is derived to printer, also guaranteed the paper feed precision of print media when only relying on stranding paper pocket-wheel 5 to send print media, guaranteed the printing precision of several row of print media end simultaneously; For thicker print media, rub the 5 upwards liftings of paper pocket-wheel with the hands, reduced the frictional force of print media to leading paper bowl 8, also just reduced the wearing and tearing to the rubber ring that rubs on leading paper bowl 8, extended the service life of leading paper bowl 8.
As the further improvement of above-mentioned embodiment, the stranding paper pocket-wheel 5 on described elastic shaft 20 is double wheel.On an elastic shaft 20, conventional printer is smoothly taken turns to stranding paper pocket-wheel that 52 and pocket-wheels 51 form and changed to and on an elastic shaft 20, install two groups and smoothly take turns 52 and pocket-wheel 51 by one, increased the frictional force that print media is subject to, particularly when paper delivery state the end of print media leave after after dancing roll 14, less with the frictional force of print media because rubbing paper pocket-wheel 5 with the hands, cannot guarantee paper feed precision, be easy to cause the type information at print media end to occur deviation, and by two pocket-wheels 51 are set on an elastic shaft, the frictional force being subject to while having increased print media paper delivery, reduced the error of paper feed precision, improved print quality.
Further, on described top board 9, be shaped with flange 93, rotating shaft 23 is provided with the second slot 232 for the flange 93 of pegging graft.At eccentric wheel 11, drive top boards 9 to take rotating shaft 23 when pivot is made overturning and lifting and moved, consider that top board 9 is for sheet metal component, for guaranteeing the flatness of top board 9 after stressed, make top board 9 stressed evenly and be difficult for deforming, one-body moldedly on described top board 9 go out a flange 93, flange 93, as important stressed member, has played the effect of reinforcement, has guaranteed that top board 9 can not deform after stressed; On rotating shaft 23, between the two sides parallel with the second slot 232 and the first slot 231, be provided with arc transiting surface 234, the described front upper paper substrate seat 6 of leading is provided with the 3rd deep-slotted chip breaker 65 corresponding to arc transiting surface 234, avoids when rotating shaft 23 rotates and the front upper paper substrate seat 6 of leading blocks.
Further, on described rotating shaft 23, be shaped with L-type batten 233, the minor face 2331 of L-type batten 233 buckles in aperture corresponding with it on top board 9.L-type batten 233 contacts with top board 9, has increased top board 9 with the contact area between rotating shaft 23, makes top board 9 when overturning and lifting, and the power that rotating shaft 23 acts on top board 9 is more even, has further protected the top board 9 as sheet metal component to prevent its stress deformation.
Preferably, the top end face projection of described right plate 3 is useful on the gripper shoe 31 of setting-up eccentricity wheel 11, and the sidewall projection of eccentric wheel 11 has the projection 111 that can block right plate 3 top end faces with the swing of eccentric wheel 11.When not carrying out print job, conflict in batten 91 bottoms in the minor axis limit of eccentric wheel 11, projection 11 is connected on the top end face of right plate 3, when start print job need by front paper-sheets rolling wheel 10 upwards lifting in order to avoid while scratching the ink marks on print media, the mainboard of printer is controlled motor 13 forwards (R in Figure 27 to), motor 13 rotates by gear set drive gear 12, eccentric wheel 11 is followed gear 12 and is swung, eccentric wheel 11 is touched to major axis edge joint and is touched transition by minor axis edge joint with batten 91, therefore batten 91 is by the jack-up that makes progress, batten 91 can drive front paper-sheets rolling wheel mounted thereto 10 to make progress lifting away from the leading paper bowl 8 corresponding with it, , current paper-sheets rolling wheel 10 rises to predetermined front paper-sheets rolling wheel and can not scratch behind the position of ink marks on print media, the mainboard of printer is just controlled motor 13 and is stopped operating, eccentric wheel 11 was now put a ρ angle, then printer completes paper delivery action, print media is not because contacting with front paper-sheets rolling wheel 10, ink marks on it can not scratched, printer completes after paper delivery action, the mainboard of printer is controlled motor 13 reversions, motor 13 band movable eccentric wheels 11 are swung, eccentric wheel 11 arrives minor axis limit on it and batten 91 again during contact position, motor 13 stops operating, eccentric wheel 11 was oppositely put ρ angle, and whole printer resets to state to be printed, but, in the process of motor 13 at forward or reverse, there is circut breaking in printer suddenly, motor 13 loses electric power and stops operating, for eccentric wheel 11 now forward ρ ' angle, after printer is connected with the mains and is restarted, for eccentric wheel forward the situation at ρ ' angle, the mainboard of printer just can be controlled motor 13 band movable eccentric wheels 11 and continue to swing ρ angle, now, eccentric wheel 11 was put ρ+ρ ' angle altogether, make with the contact edge of batten 91, to continue on eccentric wheel 11 the major axis limit of more close eccentric wheel 11, be that batten 91 has been exceeded predetermined height by the height of eccentric wheel 11 jack-up, this can damage the related components being connected with front paper-sheets rolling wheel 10, reduce greatly its life-span, in addition, when eccentric wheel 11 turns over after ρ+ρ ' angle, printer completes paper delivery work, complete after paper delivery work, the mainboard of printer can be controlled motor 13 reversions, a ρ angle of motor 13 band movable eccentric wheel 11 reversions, but now batten 91 does not touch with the minor axis edge joint of eccentric wheel 11, the front paper-sheets rolling wheel 10 that makes to be arranged on paper-sheets rolling wheel frame 17 does not still contact with its corresponding leading paper bowl 8 in lifting state, cause when printer next round paper feed moves, the paper-feeding friction of printer is inadequate, the paper feed precision of printer is affected, print quality is also just affected, after the next round paper feed of printer completes, the mainboard of printer is controlled motor 13 forward ρ angles, the position of eccentric wheel 11 while now conflicting with batten 91 in off working state eccentric wheel 11 minor axis limits with respect to printer, eccentric wheel 11 has turned over ρ+ρ ' angle altogether, until motor 13 reversion band movable eccentric wheels, put behind ρ angle, still do not conflict with batten 91 in the minor axis limit of eccentric wheel 11, when follow-up paper feed action, front paper-sheets rolling wheel 10 does not still work the paper effect of leading, and so forth, make front paper-sheets rolling wheel 10 lose the paper effect of leading, cannot guarantee the paper feed precision of print media.
For the reversed situation at ρ ' angle of eccentric wheel, after printer is restarted, the mainboard of printer can be controlled motor 13 band movable eccentric wheels and continue oppositely to put ρ angle, be that batten 91 is first close to the minor axis limit of eccentric wheel 11 gradually, eccentric wheel was put after ρ-ρ ' angle, batten 91 touches with the minor axis edge joint of eccentric wheel 11, motor 13 continues band movable eccentric wheel 11 and swings remaining ρ ', now batten 91 leaves eccentric minor axis limit, batten 91 is again by jack-up, and while making next round paper feed, paper-sheets rolling wheel 10 does not work the paper effect of leading; When machine to be printed completes and needs print media to derive after the work of next round paper feed, the mainboard of printer is controlled motor 13 forward band movable eccentric wheels 11 and was put ρ angle, batten 91 first passes through the minor axis limit of eccentric wheel 11, again away from the minor axis limit of eccentric wheel 11, ρ-ρ ' angle was only put in the position that eccentric wheel 11 contacts with batten 91 with respect to minor axis limit, make batten 91 not be lifted to predetermined height, now front paper-sheets rolling wheel 10 can scratch the ink marks on print media, make print image distortion, reduce print quality.
And the setting of projection 111 in the present invention, while again connecting with the mains after printer power-off, the mainboard of printer is controlled motor 13 and is driven eccentric wheel 11 to turn over ρ-ρ ' angle, make eccentric wheel 11 arrive preestablished limit position, when motor 13 continues to drive eccentric wheel 11 when turning over remaining ρ ' angle, projection 111 just can with the top end face clamping of right plate 3, impel eccentric wheel 11 cannot continue to swing, eccentric wheel 11 feeds back to motor 13 by the result of the action, motor 13 also cannot be rotated further, 11 of eccentric wheels can be by batten 91 tops to predetermined height like this, when printer completes after paper delivery action, the mainboard of printer can be controlled motor 13 reversion (for powering-off state behind forward ρ ' angle) or forwards (for powering-off state behind reversion ρ angle) band movable eccentric wheel 11 regular events, make front paper-sheets rolling wheel 10 when paper feed, work the paper effect of leading, lifting when paper delivery and do not scratch ink marks.
The setting of projection 111 in the present invention, eccentric wheel 11 can only be swung in the angular range of setting, avoided because of after printer power-off restarting, the angular range that eccentric wheel 11 turns over setting cause front paper-sheets rolling wheel 10 misoperation and before causing when printer paper feed paper-sheets rolling wheel 10 do not work the paper effect of leading, when printer paper delivery, front paper-sheets rolling wheel 10 contacts with print media and scratches the phenomenon of printing ink marks, has guaranteed the regular event of front paper-sheets rolling wheel 10, has improved print quality.
Further, described batten 91 is provided with extension spring 24, and the other end of extension spring 24 is connected in the gear train rotating shaft on right plate 3.For guaranteeing that the top board 9 after overturning and lifting can reset, make top board 9 after overturning and lifting, have all the time the trend of a falling, one extension spring 24 is preferably installed on batten 91, the other end of extension spring 24 is socketed in the rotating shaft of a gear in the gear train on right plate 3, extension spring 24 make batten 91 all the time with the circumference contact of eccentric wheel 11, avoided between batten 91 and eccentric wheel 11 in the process of eccentric wheel 11 actions, occurring noise because of real-time contact not: in the process that top board 9 falls after rise downwards, after the same dancing roll 8 contacts of front paper-sheets rolling wheel 10, paper-sheets rolling wheel frame 17 just no longer falls, now 171 pairs of top boards 9 of journal stirrup have lost the power that top board 9 is fallen, top board 9 does not fall completely, batten 91 does not contact with eccentric wheel 11, if the stretching action without extension spring 24, top board 9 may fall compared with continuing greatly with the front upper frictional force of paper substrate seat 6 hinged places of leading because of turning cylinder 23, while causing next round eccentric wheel 11 to swing, contact with 91 moments of batten and produce noise.
In addition, for the situation that extension spring 24 has been installed on batten 91, can be by front paper-sheets rolling wheel 10 as rear paper-sheets rolling wheel 16 is fixed on leads on paper substrate seat 15 on rear, (it is the fixed form of paper-sheets rolling wheel in conventional printer that rear paper-sheets rolling wheel 16 is fixed on the fixed form of leading on paper substrate seat 15 on rear, non-technical essential of the present invention, no longer launch to repeat herein) be fixed on front upper leading on paper substrate seat 6, and will not pass through paper-sheets rolling wheel frame 17 by front paper-sheets rolling wheel 10, journal stirrup 171 on paper-sheets rolling wheel frame 17 sidewalls and stage clip 18 are flexibly connected with top board 9, can realize equally when printer paper feed, front paper-sheets rolling wheel 10 is pressed on enforcement on leading paper bowl 8 and leads paper effect under the effect of stage clip 24 pulling force, when paper delivery, front paper-sheets rolling wheel 10 prevents from scratching the object of ink marks on print media under the effect of top board 9 and eccentric wheel 11 away from leading paper bowl 8.
Further, described front upper lead on paper substrate seat 6, to be also provided with to be positioned at rub paper pocket-wheel 5 and front paper-sheets rolling wheel 10 with the hands along the guiding pocket-wheel 25 at paper feed direction rear.When print media is implemented to print for 7 times by entering the ink gun of printer after rubbing paper pocket-wheel 5 and front paper-sheets rolling wheel 10 with the hands, from rub with the hands paper pocket-wheel 5 and paper-sheets rolling wheel 10 to ink gun 7, have certain distance, print media can be because the fold of its end, perks etc. are not passed through print media from ink gun 7 bottoms, but with the sidewall contact of ink gun 7, cause paper jam phenomenon, so, lead in the present invention setting of pocket-wheel 25, after making print media leave stranding paper pocket-wheel 5 and front paper-sheets rolling wheel 10, under the guiding function of guiding pocket-wheel 25, can accurately pass through below ink gun 7, and not can with ink gun 7 sidewall contacts, avoid the generation of paper jam phenomenon.
The above, be preferred embodiments of the present invention, but the present invention is not limited to above-described embodiment, as long as it reaches technique effect of the present invention with any same or similar means, within all should falling into protection scope of the present invention.
Claims (10)
1. a flatbed printer, comprise lateral paper guide (1), left plate (2), right plate (3) and bearing (4), on described lateral paper guide (1), be fixed with and which is provided with the front upper paper substrate seat (6) of leading of rubbing paper pocket-wheel (5) with the hands, ink gun (7) is installed on bearing (4), left, right plate (2, 3) the leading paper bowl (8) that is positioned at ink gun (7) the place ahead and coordinates with stranding paper pocket-wheel (5) is installed between, it is characterized in that: on described, lead and on paper substrate seat (6), be hinged with top board (9), on top board (9), be shaped with batten (91) and be provided with and can move and the front paper-sheets rolling wheel (10) of lifting with top board (9), front paper-sheets rolling wheel (10) coordinates with leading paper bowl (8) after passing front upper square opening (61) of leading on paper substrate seat (6), described right plate (3) is provided with the eccentric wheel (11) of apical grafting on batten (91) bottom face, on the sidewall of eccentric wheel (11), form gear (12), described gear (12) connects by the output of the motor (13) on the same right plate of gear train (3), described left and right side plate (2,3) the rear dancing roll (14) that is positioned at ink gun (8) rear is also installed between, the bottom side of bearing (4) is fixed with on rear and leads paper substrate seat (15), leads on rear the rear paper-sheets rolling wheel (16) coordinating with rear dancing roll (14) is installed on paper substrate seat (15).
2. a kind of flatbed printer according to claim 1, it is characterized in that: described top board (9) is provided with groove (92), in groove (92), be shelved with on its sidewall and be shaped with and be positioned at groove (92) trough rim along the paper-sheets rolling wheel frame (17) of the journal stirrup (171) of top, front paper-sheets rolling wheel (10) is rotationally connected with the bottom of paper-sheets rolling wheel frame (17), the top of paper-sheets rolling wheel frame (17) is connected with the first stage clip (18), and the other end apical grafting of the first stage clip (18) is led pressing plate (19) bottom on paper substrate seat (1) on being installed on.
3. a kind of flatbed printer according to claim 2, it is characterized in that: described stranding paper pocket-wheel (5) is by toothed wheel (51) and be injection-moulded in smooth wheel (52) in toothed wheel (51) and form and pass through elastic shaft (20) and be arranged in front upper mounting groove (62) of leading paper substrate seat (6), smooth wheel (52) top apical grafting has briquetting (21), the bottom face of briquetting (21) is provided with the groove (211) for accommodating toothed wheel (51), the top of described briquetting (21) is connected with the second stage clip (22), the other end apical grafting of the second stage clip (22) is in pressing plate (19) bottom.
4. a kind of flatbed printer according to claim 3, is characterized in that: the stranding paper pocket-wheel (5) on described elastic shaft (20) is double wheel.
5. a kind of flatbed printer according to claim 1, is characterized in that: it is upper that described top board (9) is articulated with the front upper paper substrate seat (6) of leading by rotating shaft (23), and rotating shaft (23) is provided with the first slot (231) for the top board of pegging graft (9).
6. a kind of flatbed printer according to claim 5, is characterized in that: on described top board (9), be shaped with flange (93), rotating shaft (23) is provided with the second slot (232) for the flange of pegging graft (93).
7. according to a kind of flatbed printer described in claim 5 or 6, it is characterized in that: on described rotating shaft (23), be shaped with L-type batten (233), the minor face (2331) of L-type batten (233) buckles in the upper aperture corresponding with it of top board (9).
8. a kind of flatbed printer according to claim 1, it is characterized in that: the top end face projection of described right plate (3) is useful on the gripper shoe (31) of setting-up eccentricity wheel (11), and the sidewall projection of eccentric wheel (11) has the projection (111) that can block right plate (3) top end face with the swing of eccentric wheel (11).
9. a kind of flatbed printer according to claim 1, is characterized in that: described batten (91) is provided with extension spring (24), and the other end of extension spring (24) is connected in the gear train rotating shaft on right plate (3).
10. a kind of flatbed printer according to claim 1, is characterized in that: described front upper lead on paper substrate seat (6), to be also provided with to be positioned at rub paper pocket-wheel (5) and front paper-sheets rolling wheel (10) with the hands along the guiding pocket-wheel (25) at paper feed direction rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210066420.0A CN102616006B (en) | 2012-03-13 | 2012-03-13 | Flat-bed printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210066420.0A CN102616006B (en) | 2012-03-13 | 2012-03-13 | Flat-bed printer |
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| CN102616006A CN102616006A (en) | 2012-08-01 |
| CN102616006B true CN102616006B (en) | 2014-02-26 |
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| CN201210066420.0A Active CN102616006B (en) | 2012-03-13 | 2012-03-13 | Flat-bed printer |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042829B (en) * | 2013-01-15 | 2015-02-25 | 新会江裕信息产业有限公司 | Front-in front-out ink-jet printing equipment |
| CN103085477B (en) * | 2013-01-15 | 2015-11-25 | 新会江裕信息产业有限公司 | For the ink jet printing device of continuous print media |
| CN107097539B (en) * | 2013-11-12 | 2019-12-31 | 精工爱普生株式会社 | Printer with a movable platen |
| JP2016193561A (en) * | 2015-04-01 | 2016-11-17 | セイコーエプソン株式会社 | printer |
| CN105128544A (en) * | 2015-09-01 | 2015-12-09 | 宁波荣大昌办公设备有限公司 | Paper conveying structure under ink jetting area |
| CN114161845B (en) * | 2021-01-28 | 2023-10-27 | 河南印都数码科技有限公司 | System for cooling, guiding and cutting thermal melting printing engineering drawing paper |
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| EP0794063A1 (en) * | 1996-03-05 | 1997-09-10 | OLIVETTI-CANON INDUSTRIALE S.p.A. | Ink jet printer |
| CN1446694A (en) * | 2002-03-25 | 2003-10-08 | 精工爱普生株式会社 | Recording device |
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| CN1590090A (en) * | 2003-08-29 | 2005-03-09 | 佳能株式会社 | Recording apparatus |
| CN202540980U (en) * | 2012-03-13 | 2012-11-21 | 新会江裕信息产业有限公司 | Flat-throw printer |
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| KR100485842B1 (en) * | 2003-01-22 | 2005-04-28 | 삼성전자주식회사 | Ink-jet printer |
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| EP0794063A1 (en) * | 1996-03-05 | 1997-09-10 | OLIVETTI-CANON INDUSTRIALE S.p.A. | Ink jet printer |
| CN1446694A (en) * | 2002-03-25 | 2003-10-08 | 精工爱普生株式会社 | Recording device |
| EP1389535A1 (en) * | 2002-08-14 | 2004-02-18 | Seiko Epson Corporation | Recording apparatus |
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