CN109572246B - Automatic printing method of printer - Google Patents
Automatic printing method of printer Download PDFInfo
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- CN109572246B CN109572246B CN201811458371.9A CN201811458371A CN109572246B CN 109572246 B CN109572246 B CN 109572246B CN 201811458371 A CN201811458371 A CN 201811458371A CN 109572246 B CN109572246 B CN 109572246B
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- 238000007639 printing Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000008569 process Effects 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
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- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0015—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/006—Means for preventing paper jams or for facilitating their removal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
- B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section
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- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
The invention relates to the technical field of automatic printing, and provides an automatic printing method of a printer, aiming at solving the problem of paper jam caused by feeding a plurality of sheets of paper once because the paper is adsorbed together due to static electricity during automatic paper feeding in the existing printing process, wherein the automatic printing method comprises a paper placing step, a paper discharging step and a printing step, wherein the printing step comprises the following steps: s1, paper feeding step: the paper feeding cam in the body rotates, in the rotating process of the paper feeding cam, the convex end of the paper feeding cam is contacted with the paper outlet end of the paper feeding plate to drive the paper on the paper feeding plate to reach a paper feeding double roller positioned on one side of the paper outlet of the body, and the paper feeding double roller sends the paper into the body for printing; s2, heating: in S1, when the protruding end of the paper feed cam rotates to the next half-cycle, the air inlet at the paper exit on the heat conducting assembly sucks in the hot air at the paper exit, and the hot air passes through the heat conducting assembly and enters the inner cavities of the paper feed rollers and the paper feed cam which are communicated with the air outlet of the heat conducting assembly.
Description
Technical Field
The invention relates to the technical field of automatic printing, in particular to an automatic printing method of a printer.
Background
A printer is one of the output devices of a computer for printing the results of a computer process on an associated medium. According to the adopted technology, the printer can be divided into a column type, a spherical type, an ink jet type, a thermal sensitive type, a laser type, an electrostatic type, a magnetic type, a light emitting diode type and the like. When the printer is used for printing, paper to be printed is fed into the printer, a charge latent image is formed on the toner cartridge by laser scanning, then toner is adsorbed, the toner is transferred onto printing paper, and the printed paper is fed out from an outlet to finish printing. With the development of automation technology, the paper feeding of the printer is changed from the former manual paper feeding into the automatic paper feeding. The automatic paper feeding of the existing printer paper is completed by the combined action of the paper twisting wheel and the separating pad, and the principle is that the friction among the paper, the paper and the paper twisting wheel and the friction among the paper and the separating pad are different. When the paper feeding mechanism drives the paper feeding wheel to feed paper, paper enters the paper feeding wheel conveniently, and the automatic paper feeding operation is realized.
In daily use, paper jam faults often occur during printing, and the jammed paper needs to be withdrawn from the printer before printing can be continued. One of the main reasons for paper jam is that paper is fed once, so that sometimes several pieces of paper may be adsorbed together due to the influence of static electricity on printing paper, and then the paper adsorbed together is also fed into the printer together by the paper twisting wheel during paper feeding, thereby causing paper jam, and reducing the working efficiency of the printer.
Disclosure of Invention
The invention aims to provide an automatic printing method of a printer, which aims to solve the problem of paper jam caused by feeding a plurality of paper once by a paper pickup wheel because the paper is adsorbed together due to the action of static electricity when the paper is automatically fed in the existing printing process.
The basic scheme provided by the invention is as follows: an automatic printing method of a printer, comprising the steps of:
a paper placing step: stacking paper to be printed, and then putting the stacked paper into a paper feeding box at one end of a printer body, so that one end of the paper is positioned at the paper outlet end of a paper feeding plate in the paper feeding box;
a paper discharging step: the printed paper is sent out from the paper outlet at the other end of the body;
the printing step is included between the paper placing step and the paper discharging step, and the printing step comprises the following steps:
s1, paper feeding step: the paper feeding cam in the body rotates, in the rotating process of the paper feeding cam, the convex end of the paper feeding cam is contacted with the paper outlet end of the paper feeding plate to drive the paper on the paper feeding plate to reach a paper feeding double roller positioned on one side of the paper outlet of the body, and the paper feeding double roller sends the paper into the body for printing;
s2, heating: in S1, when the protruding end of the paper feed cam rotates to the next half-cycle, the air inlet at the paper outlet on the heat conducting component in the body sucks in the hot air at the paper outlet, and the hot air passes through the heat conducting component and then enters the inner cavities of the paper feed rollers and the paper feed cam which are communicated with the air outlet of the heat conducting component.
The working principle of the basic scheme is as follows: in the automatic printing method, the paper feeding box is used for placing paper, and when the paper is placed, the paper to be printed is stacked and then placed on the paper feeding plate, so that one end of the paper is positioned at the paper outlet end of the paper feeding plate; the paper feeding mechanism is used for realizing automatic paper feeding, and during printing, the paper feeding cam rotates and rotates from the paper outlet end of the paper feeding plate to the paper outlet of the body; the convex end of the paper feeding cam can be contacted with the paper outlet end of the paper feeding plate when rotating to the next half cycle, the friction between the paper and the paper is different from the friction between the paper and the paper feeding cam, and the friction force of one surface of the paper facing the paper feeding cam is larger than the friction force between the paper and the paper, so the paper can move along with the paper feeding cam under the action of the paper feeding cam, and then reaches the paper feeding roller pair, the rotating paper feeding roller pair sends the paper into the body for printing, and finally the paper is sent out from the paper outlet of the body, thereby completing the whole printing work;
when the paper is sent out from the paper outlet, the paper is very hot, namely, a large amount of hot air exists at the paper outlet of the body, so that the scheme is also provided with the heat conduction assembly, the air inlet of the heat conduction assembly is positioned at the paper outlet, the heat conduction assembly can lead the hot air at the paper outlet into the inner cavities of the paper feeding pair rollers and the paper feeding cam, and the temperature of the paper feeding cam and the paper feeding pair rollers is increased; for the paper feeding cam, the temperature of the paper is increased in the process of contacting with the paper due to the temperature increase of the paper, the air temperature around the paper is increased, the paper is lifted upwards due to the rise of hot air, the paper is separated from the paper below, and the protruding end of the paper feeding cam rotates to the next half circle to contact with the paper, so the heated paper feeding cam drives the lifted paper to move together, the paper is fed into the body, and the phenomenon that a plurality of pieces of paper are fed at one time is avoided;
for the paper feeding roller pair, the surface of the paper feeding roller pair is always in contact with paper, so that the paper feeding roller pair after temperature rise can heat the paper while feeding the paper, on one hand, if the paper is affected with damp, the paper can deform, and the paper jam phenomenon is easy to occur, so that the paper can be heated by the paper feeding roller pair to avoid the paper jam phenomenon, on the other hand, in the printing process, in order to facilitate that carbon powder adsorbed by static electricity can be stably adhered to the paper, the paper needs to be heated firstly, then the paper is heated in advance by the paper feeding roller pair in the paper feeding process, so the temperature of the paper is higher, and the carbon powder is more stably adhered.
The basic scheme has the beneficial effects that: compared with the existing automatic printing method, 1. in the method, the paper feeding cam heats and conveys the paper, and the hot air is utilized to lift the paper, so that the paper is separated from other paper, and further only one paper is fed at a time, thus avoiding paper jam caused by feeding a plurality of papers at a time and ensuring the smooth operation of printing;
2. in the heating step, the heat conducting component is utilized to recover heat in the printing process, and the paper feeding cam and the paper feeding roller are heated, wherein the heating of the paper feeding cam realizes that only one piece of paper is fed at one time, and the phenomenon of paper jam caused by feeding a plurality of pieces of paper at one time is avoided; and the heating of the pair roller that form advances has both realized the stoving to the paper, has avoided the card paper phenomenon because paper humidity leads to, has realized preheating to the paper again for later carbon dust can be more firm adhere on the paper, thereby guarantee the printing effect of paper.
The first preferred scheme is as follows: preferably, in S2, when the protruding end of the paper feeding cam rotates to the lower half of the circumference, the bellows located below the paper feeding cam in the heat conducting assembly compresses, and the air in the heat conducting assembly enters the air duct in the heat conducting assembly, which is communicated with the bellows, and enters the inner cavities of the paper feeding roller pair and the paper feeding cam through the air outlet of the air duct; when the paper feeding cam rotates to the upper half of the circumference, the corrugated pipe extends, and the hot air at the paper outlet is sucked into the air guide pipe by the air inlet of the air guide pipe. Has the advantages that: the air inlet of the air duct is positioned at the paper outlet, so that the air introduced into the air duct is hot air at the paper outlet, when the paper feeding cam rotates in the next half cycle, the corrugated pipe is compressed at the moment, the air in the corrugated pipe enters the air duct, the hot air in the air duct enters the paper feeding roller and the inner cavity of the paper feeding cam through the air outlet, and the paper feeding cam is heated to follow the paper feeding roller; when the paper feeding cam rotates for the next half cycle, the corrugated pipe extends, the air guide pipe sucks air, and therefore hot air at the paper outlet is sucked into the air guide pipe, so that ventilation of the air guide pipe to the paper feeding cam and the paper feeding roller pair is achieved through the cooperation of the corrugated pipe and the paper feeding cam, and the operation is simple.
The preferred scheme II is as follows: preferably, in the first preferred embodiment, in S2, the hot air at the paper outlet can only flow to the air outlet of the air guide pipe after passing through the one-way valve at the air inlet of the air guide pipe. Has the advantages that: the arrangement of the one-way valve ensures that when the corrugated pipe extends, the air guide pipe can only suck air through the air inlet and cannot suck out hot air which is introduced into the paper feeding cam and the paper feeding roller, so that the heating effect of the paper feeding cam and the paper feeding roller is ensured.
The preferable scheme is three: preferably, in the printing step, the same sides of the two rotating rollers of the paper feeding pair roller are connected through a connecting rod, one end of the connecting rod is hinged to one side of one end of one rotating roller, and the other end of the connecting rod is hinged to the other side of the same end of the other rotating roller; the connecting rod is provided with a cavity in a penetrating way along the axial direction, and the two ends of the cavity are communicated with the inner cavities of the two rotating rollers of the paper feeding pair roller. Has the advantages that: the connecting rod is utilized to realize the transmission connection of the two rotating rollers of the paper feeding pair roller, after one rotating roller rotates, the other rotating roller starts to rotate under the driving of the connecting rod, and meanwhile, the communication of hot air in the inner cavities of the two rotating rollers is realized by utilizing the communication of the cavity of the connecting rod and the inner cavity of the paper feeding pair roller, and the structure is compact.
The preferable scheme is four: preferably, in the paper placing step, when the paper is placed on the paper feeding plate, the paper is located at the center of the paper feeding plate by the limit block which is slidably connected with the sliding groove arranged along the width direction on the paper feeding plate. Has the advantages that: in order to ensure that the content of the paper is in the center of the paper and the paper is not skewed after the paper is printed, when the paper is placed on the paper feeding plate, the paper needs to be placed in the center of the paper feeding plate, the paper is limited by the limiting block, the paper can be quickly limited in the center, and the operation is simple.
The preferable scheme is five: preferably, in S2, the hot air from the paper outlet enters the air duct after passing through the filter screen at the air inlet of the air duct. Has the advantages that: the setting of filter screen can filter the air, guarantees to enter into the cleanness of this internal air, just also avoids appearing the phenomenon of card paper owing to have the dust on the paper.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of a printer used in an embodiment of an automatic printing method of a printer according to the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a front view of the paper feeding plate of FIG. 1.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the paper feeding device comprises a body 1, a paper feeding plate 2, a sliding groove 21, a limiting block 23, a paper feeding cam 3, a paper feeding double roller 4, a second rotating roller 41, a first rotating roller 42, a first connecting rod 43, a second connecting rod 45, a heat conducting assembly 5, an air guide pipe 51 and a corrugated pipe 52.
As shown in fig. 1, the printing apparatus adopted by the automatic printing method of the printer of the present invention includes a main body 1, one end of the main body 1 is provided with a paper feeding cassette, and the other end is provided with a paper outlet, specifically, in this embodiment, the right end of the main body 1 is provided with the paper feeding cassette, and the left end is provided with the paper outlet, the paper feeding cassette includes a paper feeding plate 2 for placing paper, wherein: the paper feeding box also comprises a heating mechanism and a paper feeding mechanism, the paper feeding mechanism comprises a paper feeding cam 3 and a paper feeding double-roller 4, the paper feeding cam 3 is positioned at the paper outlet end of the paper feeding plate 2, and the convex end of the paper feeding cam 3 is contacted with the paper outlet end of the paper feeding plate 2 when rotating to the lower half circumference; as shown in fig. 3, the paper feeding plate 2 is provided with a sliding slot 21 along the width direction, and two limiting blocks 23 are slidably connected in the sliding slot 21;
the heating mechanism comprises a heat conduction assembly 5, an air inlet of the heat conduction assembly 5 is positioned at an air outlet, inner cavities are formed in the paper feeding double-roller 4 and the paper feeding cam 3, an air outlet of the heat conduction assembly 5 can be communicated with the inner cavities of the paper feeding double-roller 4 and the paper feeding cam 3, an air outlet of the heat conduction assembly 5 is positioned at the lower end of the paper feeding cam 3, and when the protruding end of the paper feeding cam 3 rotates to the lower half circumference, air is introduced into the inner cavity of the paper feeding cam 3 by the heat conduction assembly 5;
specifically, the heat conducting assembly 5 in this embodiment includes an air duct 51 and a bellows 52, an air inlet of the air duct 51 is located at the paper outlet, preferably, a filter screen and a first one-way valve are arranged at the air inlet, air can enter the air duct 51 through the first one-way valve, and the filter screen filters hot air entering the air duct 51 to ensure that the air entering the body 1 is clean; the air outlet of the air duct 51 is communicated with the inner cavity of the paper feeding double-roller 4 following the paper feeding cam 3, a second one-way valve is arranged at the air outlet, air can enter the inner cavity through the second one-way valve, the air outlet end of the air duct 51 is communicated with the corrugated pipe 52, the corrugated pipe 52 is positioned below the paper feeding cam 3, specifically, when the corrugated pipe 52 is in the original length, the distance from the circle center of the paper feeding cam 3 to the top end of the corrugated pipe 52 is smaller than the radius of the paper feeding cam 3, so that when the protruding end of the paper feeding cam 3 rotates to the lower half circle, the corrugated pipe 52 can be compressed under the;
as shown in fig. 2, the paper feeding roller pair 4 includes a lower first rotating roller 42 and an upper second rotating roller 41, the first rotating roller 42 and the second rotating roller 41 are both provided with inner cavities along the axial direction, the end surface of the first rotating roller 42 is provided with a first connecting hole, the air outlet of the air duct passes through the first connecting hole and extends into the inner cavity, so that the air outlet of the air duct 51 is communicated with the inner cavity of the first rotating roller 42, and thus, the rotation of the first rotating roller 42 does not cause interference to the air duct 51; the first rotating roller 42 is controlled by a driving motor, specifically, one end of the first rotating roller, which is far away from the air guide pipe, is connected with an output shaft of the driving motor through a coupler, the second rotating roller 41 is connected with the first rotating roller 42 through a first connecting rod 43, the lower end of the first connecting rod 43 is hinged to the left lower side of the first rotating roller 42, the upper end of the first connecting rod 43 is hinged to the right upper side of the second rotating roller 41, specifically, a second connecting hole is formed in the left lower side of the front end face of the first rotating roller 42, a first connecting pin is rotatably connected in the second connecting hole, the lower end of the first connecting rod 43 is rotatably connected with the first connecting pin, a third connecting hole is formed in the right upper side of the front end face of the second rotating roller 41, a second connecting pin is rotatably connected in the third connecting hole, and the upper end of the first connecting rod 43 is rotatably; for convenience of understanding, the lower left side and the upper right side in the above process assume that the first rotating roller 42 and the second rotating roller 41 are in a stationary state in fig. 2, and after the first rotating roller 42 and the second rotating roller 41 rotate, the positions of the lower left side and the upper right side in the above process also change;
a first cavity is formed in the first connecting rod 43, a connecting cavity is formed in the second connecting pin, the second rotating roller 41 is connected with the first connecting rod 43 through the second connecting pin, and the second rotating roller 41 is provided with an inner cavity, so that the first cavity, the connecting cavity and the first cavity are communicated, namely the upper end of the first cavity is communicated with the inner cavity of the second rotating roller 41; a second connecting rod 45 is connected between the second rotating roller 41 and the paper feeding cam 3, the lower end of the second connecting rod 45 is hinged with the upper end of the first connecting rod 43, the upper end of the second connecting rod 45 is hinged with the right lower side of the paper feeding cam 3, the second connecting rod 45 is provided with a second cavity, the lower end of the second cavity is communicated with the first empty upper end, and the upper end of the second cavity is communicated with the inner cavity of the paper feeding cam 3, so that hot air at a paper outlet enters the inner cavity of the first rotating roller 42 through the air duct 51, enters the inner cavity of the second rotating roller 41 through the first cavity of the first connecting rod 43, and then enters the inner cavity of the paper feeding cam 3 through the second cavity of the second connecting rod 45, thereby heating the paper feeding roller 4 and the paper feeding cam 3 by the hot air.
An automatic printing method of a printer, comprising the steps of:
a paper placing step: stacking paper to be printed, putting the stacked paper into a paper feeding box at one end of a printer body 1, enabling one end of the paper to be located at the paper outlet end of a paper feeding plate 2 in the paper feeding box, and when the paper is placed on the paper feeding plate 2, enabling the paper to be located at the center of the paper feeding plate 2 by a limiting block 23 which is connected in a sliding mode along a sliding groove 21 formed in the paper feeding plate 2 in the width direction;
a paper discharging step: the printed paper is sent out from the paper outlet at the other end of the body 1;
the printing step is included between the paper placing step and the paper discharging step, and the printing step comprises the following steps:
s1, paper feeding step: the paper feeding cam 3 in the body 1 rotates, in the process of rotating the paper feeding cam 3, the convex end of the paper feeding cam 3 is contacted with the paper outlet end of the paper feeding plate 2 to drive the paper on the paper feeding plate 2 to reach the paper feeding double-roller 4 positioned at one side of the paper outlet of the body 1, and the paper is fed into the body 1 by the paper feeding double-roller 4 to be printed;
s2, heating: in S1, when the protruding end of the paper feed cam 3 rotates to the next half-cycle, the air inlet on the heat conduction assembly 5 at the paper outlet sucks in the hot air at the paper outlet, the hot air passes through the heat conduction assembly 5 and then enters the paper feed pair roller 4 and the inner cavity of the paper feed cam 3 which are communicated with the air outlet of the heat conduction assembly 5, specifically, when the protruding end of the paper feed cam 3 rotates to the next half-cycle, the bellows 52 in the heat conduction assembly 5 below the paper feed cam 3 is compressed, and the air in the heat conduction assembly 5 enters the air duct 51 in the heat conduction assembly 5 which is communicated with the bellows 52 and enters the inner cavities of the paper feed pair roller 4 and the paper feed cam 3 through the air outlet of the air duct 51; when the paper feeding cam 3 rotates to the upper half, the corrugated pipe 52 extends, the air inlet of the air duct 51 at the paper outlet sucks the hot air at the paper outlet into the air duct 51, the hot air enters the air duct 51 after passing through the filter screen at the air inlet of the air duct 51, and in the process, the hot air at the paper outlet can only flow to the air outlet of the air duct 51 after passing through the one-way valve at the air inlet of the air duct 51.
When printing, paper to be printed needs to be put on the paper feeding plate 2 of the paper feeding box, and after the stacked paper is put on the paper feeding plate 2, the limiting block 23 on the paper feeding plate 2 is slid, so that the paper is positioned in the middle of the paper feeding plate 2; then, the driving motor is started, at this time, the first rotating roller 42 rotates anticlockwise, the second rotating roller 41 rotates clockwise under the driving of the first connecting rod 43, the second rotating roller 41 rotating clockwise drives the paper feeding cam 3 to rotate clockwise through the second connecting rod 45, and the paper feeding cam 3 and the paper feeding pair roller 4 start to feed paper;
when paper is fed, the convex end of the paper feeding cam 3 can be contacted with the paper outlet end of the paper feeding plate 2 in the rotating process, and the friction between the paper and the paper is smaller than the friction between the paper and the paper feeding cam 3, so that the friction force of one surface of the paper, facing the paper feeding cam 3, is larger than the friction force between the paper and the paper, the paper can move along with the paper feeding cam 3 under the action of the paper feeding cam 3, so as to reach the paper feeding pair roller 4, the paper is continuously conveyed leftwards by the paper feeding pair roller 4, the paper is conveyed into the body 1 to be printed, and finally the paper is conveyed out from the paper outlet at the left end of the body 1, so that the whole printing work is completed;
in the process of feeding paper, when the paper feeding cam 3 rotates to the first half cycle, the paper feeding cam 3 is not contacted with the corrugated pipe 52 any more, so that the corrugated pipe 52 is not extruded by the paper feeding cam 3 any more, the corrugated pipe 52 extends until the original length is recovered, and in the process of extending the corrugated pipe 52, the volume in the corrugated pipe 52 is increased, the pressure intensity is reduced, the air guide pipe is in an air suction state, so that hot air at the paper outlet enters the air guide pipe 51 through the filter screen and the first one-way valve, and when the paper feeding cam 3 rotates to the second half cycle, the corrugated pipe 52 is compressed, at the same time, the hot air in the air guide pipe 51 enters the inner cavities of the paper feeding roller 4 and the paper feeding cam 3 through the second one-way valve, and the temperature of the paper feeding cam 3 and the paper feeding roller 4 is; for the paper feeding cam 3, in the process of contacting with paper, the temperature of the paper is increased due to the temperature increase of the paper, the air temperature around the paper is increased, and the paper is lifted upwards due to the rise of hot air, so that the paper is separated from the paper below, the paper which is lifted is driven to move together by the heated paper feeding cam 3, the paper is also sent to the paper feeding roller pair 4, and the phenomenon of feeding a plurality of pieces of paper at one time is avoided;
for the paper feeding roller pair 4, the surface of the paper feeding roller pair 4 is always in contact with paper, so that the paper feeding roller pair 4 after being heated can heat the paper while feeding the paper, on one hand, if the paper is wetted, the paper can deform and jam easily occurs, so that the paper can be prevented from being jammed by heating the paper by the paper feeding roller pair 4, on the other hand, in the printing process, carbon powder adsorbed by static electricity can be stably adhered to the paper, the paper needs to be heated firstly, and then the paper is heated in advance by the paper feeding roller pair 4 in the paper feeding process, so that the temperature of the paper is higher, and the carbon powder is more stably adhered.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (4)
1. An automatic printing method of a printer, comprising the steps of:
a paper placing step: stacking paper to be printed, and then putting the stacked paper into a paper feeding box at one end of a printer body, so that one end of the paper is positioned at the paper outlet end of a paper feeding plate in the paper feeding box;
a paper discharging step: the printed paper is sent out from the paper outlet at the other end of the printer body;
the method is characterized in that: a printing step is included between the paper placing step and the paper discharging step, and the printing step comprises the following steps:
s1, paper feeding step: the paper feeding cam in the printer body rotates, in the process of rotating the paper feeding cam, the protruding end of the paper feeding cam is in contact with the paper outlet end of the paper feeding plate, paper on the paper feeding plate is driven to reach a paper feeding roller which is positioned at one side of the paper outlet of the printer body, which faces the paper outlet of the printer body, and the paper is sent into the printer body by the paper feeding roller to be printed;
s2, heating: in S1, when the protruding end of the paper feed cam rotates to the next half-cycle, the air inlet at the paper outlet on the heat conducting assembly in the printer body sucks in the hot air at the paper outlet, and the hot air passes through the heat conducting assembly and then enters the inner cavities of the paper feed rollers and the paper feed cam which are communicated with the air outlet of the heat conducting assembly; when the convex end of the paper feeding cam rotates to the lower half circumference, the corrugated pipe positioned below the paper feeding cam in the heat conduction assembly is compressed, and air in the heat conduction assembly enters the air guide pipe communicated with the corrugated pipe in the heat conduction assembly and enters the inner cavities of the paper feeding roller pair and the paper feeding cam through the air outlet of the air guide pipe; when the paper feeding cam rotates to the upper half circle, the corrugated pipe extends, and the air inlet of the air guide pipe sucks hot air at the paper outlet into the air guide pipe;
in the printing step, two rotating rollers of the paper feeding roller pair are connected through a connecting rod, one end of the connecting rod is hinged to one side of one end of one rotating roller, and the other end of the connecting rod is hinged to the other side of the same end of the other rotating roller; the connecting rod is provided with a cavity in a penetrating way along the axial direction, and two ends of the cavity are communicated with the inner cavities of the two rotating rollers of the paper feeding pair roller.
2. The automatic printing method of a printer according to claim 1, characterized in that: in S2, the hot air at the paper outlet can only flow to the air outlet of the air guide tube after passing through the one-way valve at the air inlet of the air guide tube.
3. The automatic printing method of a printer according to claim 1, characterized in that: in the paper placing step, when the paper is placed on the paper feeding plate, the paper is positioned in the middle of the paper feeding plate along the limiting block which is arranged on the paper feeding plate and is connected with the paper feeding plate in the sliding way along the width direction.
4. The automatic printing method of a printer according to claim 1, characterized in that: in S2, the hot air from the paper outlet enters the air duct after passing through the filter screen at the air inlet of the air duct.
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Effective date of registration: 20240807 Address after: 445700 Fengxiang Avenue, Xiangfeng Town, Laifeng County, Enshi Tujia and Miao Autonomous Prefecture, Hubei Province (self committed declaration) Patentee after: Enshi Kefa Advertising Printing Co.,Ltd. Country or region after: China Address before: Room 7088-230, 7th floor, 1558 Jiangnan Road, high tech Zone, Ningbo, Zhejiang 315000 Patentee before: NINGBO LONGRUI MACHINERY MANUFACTURE CO.,LTD. Country or region before: China |