CN110949018A

CN110949018A - Bar code printer

Info

Publication number: CN110949018A
Application number: CN201911404562.1A
Authority: CN
Inventors: 温涛; 胡延沛
Original assignee: JIANGMEN DASCOM COMPUTER PERIPHERAL CO Ltd
Current assignee: Printers (Jiangmen) Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-03

Abstract

The invention discloses a bar code printer, which comprises a body, a printing head and a printing head, wherein the body is provided with a paper inlet and a paper outlet, and an installation cavity is arranged inside the body; the carbon belt mechanism is arranged in the mounting cavity and comprises a pair of carbon belt shafts, a control box and a fixing plate, a driving piece is arranged on the control box, and a speed measuring component and a transmission gear set are arranged in the control box; and the printing mechanism is arranged below the carbon ribbon mechanism and comprises a printing head frame with a printing head and a paper path frame, wherein the two ends of the printing head frame are respectively provided with a tensioning assembly and a guide plate, the tensioning assembly and the guide plate are respectively provided with an adjusting hole, and a positioning bolt penetrates through the adjusting hole and is connected with the printing head frame. According to the invention, the speed measuring assembly is used for detecting the output rotating speed of the driving part, the rotating speed of the carbon belt shaft is calculated according to the transmission ratio, the current of the driving part is adjusted in real time so as to adjust the tension of the carbon belt, and the position of the adjusting hole is adjusted so as to adjust the installation position and angle of the tensioning assembly and the guide plate, so that the carbon belt is tensioned reliably, the service life of the carbon belt is prolonged, and the printing quality is improved.

Description

Bar code printer

Technical Field

The invention relates to the technical field of bar code printing equipment, in particular to a bar code printer.

Background

The bar code printer prints on a thermal basis and a thermal transfer ribbon as a printing medium, and the greatest advantage of the printing mode is that the bar code printer can realize continuous high-speed printing under the condition of no supervision. Present specification is eight inches's bar code printer mainly uses the industrial type printer as main design direction, mainly used electric power system, industrial production, the accessories sign, the label printing of fabrics sign etc., because the carbon ribbon width that its adopted is great, print the in-process, because unreel the axle diameter and diminish gradually, the rolling axle diameter grow gradually, make the tension of carbon ribbon constantly change, the rotational speed of carbon ribbon axle is difficult to in time adjust, the rotational speed that leads to carbon ribbon axle does not match with the tension of carbon ribbon, the carbon ribbon appears laxly easily or pulls, lead to the carbon ribbon pincher trees, skid, the fracture even, damage the carbon ribbon, influence the printing quality.

Disclosure of Invention

The invention aims to at least solve one of the technical problems in the prior art, and provides a bar code printer which can adjust the tension of a carbon ribbon in real time, level the carbon ribbon and ensure the printing quality of the bar code printer.

A barcode printer according to an embodiment of the present invention includes: the paper feeding device comprises a machine body, a paper feeding port, a paper discharging port and an installation cavity, wherein the two ends of the machine body are respectively provided with the paper feeding port and the paper discharging port; the carbon belt mechanism is arranged in the mounting cavity and comprises carbon belt shafts arranged in pairs, and a control box and a fixing plate which are arranged at two ends of the carbon belt shafts, wherein a driving part is arranged on the control box, a speed measuring component connected with the driving part and a transmission gear group connected with the speed measuring component and the carbon belt shafts are arranged in the control box; and the printing mechanism is arranged below the carbon ribbon mechanism and comprises a printing head frame with a printing head and a paper path frame hinged with the printing head frame, wherein two ends of the printing head frame are respectively provided with a tensioning assembly and a guide plate, the tensioning assembly and the guide plate are respectively provided with an adjusting hole, and a positioning bolt penetrates through the adjusting hole and is connected with the printing head frame.

The barcode printer provided by the embodiment of the invention at least has the following technical effects: detect driving piece output speed through the subassembly that tests the speed, according to the drive ratio that the gear train corresponds, calculate the rotational speed that obtains the carbon ribbon axle, and feed back in real time, adjust the driving piece electric current, in order to adjust carbon ribbon axle rotational speed, in order to adjust the carbon ribbon tension, position through the adjustment regulation hole, positioning bolt fastens, can quick adjustment tensioning assembly and deflector's mounted position and angle, make the carbon ribbon tensioning reliable, the atress is even, effectively prevent that the carbon ribbon from skidding, corrugate or fracture, be favorable to prolonging carbon ribbon life, improve printing quality.

According to some embodiments of the invention, the speed measuring component comprises a grating gear and a speed measuring sensor, the grating gear is connected with the driving part, and a plurality of detecting holes are arranged in a penetrating manner. The time interval that the adjacent detection hole passes through the speed measurement sensor is detected through the speed measurement sensor, the rotating speed of the grating gear is obtained through calculation, so that the output rotating speed of the driving piece is obtained, and the rotating speed of the carbon belt shaft can be obtained through calculation according to the transmission ratio of the gear set.

According to some embodiments of the present invention, the transmission gear set includes a carbon ribbon gear engaged with the grating gear, and a ferrule gear connected to the carbon ribbon shaft, and an intermediate gear engaged with the ferrule gear is coaxially and fixedly disposed on the carbon ribbon gear. Through carbon ribbon gear and grating gear engagement, intermediate gear and cutting ferrule gear engagement, driving piece drive grating gear rotates, and carbon ribbon gear rotates thereupon, and intermediate gear synchronous revolution to drive cutting ferrule gear revolve, make the carbon ribbon axle rotate.

According to some embodiments of the invention, the tensioning assembly comprises a tensioning shaft and an adjustment bracket mounting the tensioning shaft, the adjustment holes being symmetrically disposed on the adjustment bracket. Through the position of adjustment regulation hole, can adjust the mounted position and the angle of adjusting the support to adjust the mounted position and the angle of tensioning axle, make the carbon ribbon tensioning reliable, prevent effectively that the carbon ribbon from wrinkling.

According to some embodiments of the present invention, the print head is provided with a pressure adjusting assembly, the pressure adjusting assembly includes a limit sleeve penetrating the print head frame, a knob penetrating the limit sleeve, and an adjusting spring having two ends abutting against the knob and the print head, respectively. Through rotating the knob, adjust knob's the installation depth in spacing sleeve, when the knob moved down, adjusting spring was compressed, the elasticity increase, make the pressure increase of being used in printer head, when the knob shifts up, adjusting spring was released, the elasticity reduces, make the pressure of being used in printer head reduce, quick adjustment printer head pressure, in order to adapt to writing paper, different print media such as art paper, guarantee that the bar code prints clearly, change the paper of different thickness after, need not to adjust printer head angle, the simple operation, application scope is wide.

According to some embodiments of the invention, the knob is provided with a limiting block, and the limiting sleeve is provided with a plurality of concave positions matched with the limiting block. Through concave position and stopper cooperation, the knob is rotatory back, and the location knob guarantees that pressure adjustment is reliable, guarantees to be used in the pressure stability of printer head, and sets up a plurality of concave positions, corresponds different spacing height, prescribes a limit to the installation depth of knob in spacing sleeve to change adjusting spring's compression state, adjust printer head pressure.

According to some embodiments of the invention, a printing roller corresponding to the printing head is arranged on the paper path frame, a positioning bearing seat and a mounting bearing seat are respectively arranged at two ends of the printing roller, and a buckle is arranged on the mounting bearing seat. Install respectively on paper way frame through location bearing frame and installation bearing frame, the printing roller fastening installation is on paper way frame, and buckle and paper way frame lock joint for the printing roller fastening installation stirs the buckle and makes installation bearing frame break away from paper way frame, can easily take out the printing roller, simple structure, and the simple operation is convenient for change the printing roller, improves and overhauls assembly efficiency.

According to some embodiments of the invention, a position detection assembly is arranged in the mounting cavity, and comprises an opposite-emission sensor and a mounting box for mounting the opposite-emission sensor, and a flat cable is connected to the opposite-emission sensor. Through setting up the printing initial position that correlation sensor detected printing paper, detect accurate high-efficient, adopt winding displacement transmission data for when adjusting correlation sensor position, the winding displacement is bent in order or is extended, guarantees to walk the line orderly neat, avoids the winding between the different circuits, ties, easy access, change.

According to some embodiments of the invention, the mounting box comprises a mounting cover and a mounting seat, the mounting cover is provided with a sliding groove, the correlation sensor is arranged in the sliding groove in a penetrating manner, and the mounting seat is internally provided with a wiring groove for accommodating the flat cable. Through setting up the spout, the correlation sensor can be in the spout round trip movement, and quick adjustment detects the position, uses in a flexible way, and when the correlation sensor removed, the winding displacement was crooked thereupon or extended, accomodates the winding displacement through the trough, guaranteed to walk the line neatly orderly.

According to some embodiments of the invention, the paper roll rack is arranged at one end of the paper feeding port of the machine body, and a label paper roll is arranged on the paper roll rack. Through the installation label scroll of scroll frame, the memo paper is sent into the organism from the paper feed mouth and is inside to be printed, avoids the label scroll to drop, guarantees that the label scroll is form advanced smoothly orderly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of an appearance structure of a barcode printer according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the barcode printer shown in FIG. 1;

FIG. 3 is a schematic diagram of the overall configuration of the position sensing assembly of the barcode printer shown in FIG. 1;

FIG. 4 is an exploded view of the structure of the position sensing assembly shown in FIG. 3;

FIG. 5 is a cross-sectional assembly view of the position sensing assembly shown in FIG. 3;

FIG. 6 is a schematic diagram of a ribbon mechanism of the barcode printer shown in FIG. 2;

FIG. 7 is a schematic view of the internal structure of the control box shown in FIG. 3;

FIG. 8 is a schematic structural view of the printing mechanism shown in FIG. 2;

FIG. 9 is a schematic diagram of the tension assembly of the printing mechanism shown in FIG. 8;

FIG. 10 is a schematic illustration of a guide plate structure of the printing mechanism shown in FIG. 8;

FIG. 11 is a schematic view of a pressure adjustment assembly of the printing mechanism shown in FIG. 8;

FIG. 12 is an assembly schematic view of a positioning bearing housing of the printing mechanism shown in FIG. 8;

FIG. 13 is an assembly schematic view of a mounting bearing housing of the printing mechanism shown in FIG. 8;

FIG. 14 is a cross-sectional view of a paper path frame assembly of the printing mechanism shown in FIG. 8;

FIG. 15 is a schematic view of a paper width adjustment block assembly of the printing mechanism shown in FIG. 2;

FIG. 16 is a schematic diagram of a black mark sensor assembly of the printing mechanism shown in FIG. 2;

fig. 17 is a schematic structural diagram of an appearance of a barcode printer according to another embodiment of the present invention.

Reference numerals:

body 100, upper shell 110, handle 111, control panel 112, button 113, indicator lamp 114, transparent window 115, lower shell 120, paper inlet 130, paper outlet 140, cutter 141, mounting cavity 150,

The device comprises a carbon ribbon mechanism 200, an unreeling shaft 210, an unreeling motor 211, an unreeling driving gear 2111, an unreeling gear 212, an unreeling intermediate gear 2121, an unreeling sleeve gear 213, a reeling shaft 220, a reeling motor 221, a reeling driving gear 2211, a reeling gear 222, a reeling intermediate gear 2221, a reeling sleeve gear 223, a control box 230, a fixing plate 240, a raster gear 250, a detection hole 251, a transition gear 252, a speed measurement sensor 260, a rotating sleeve 270, a speed measurement sensor, a speed measurement,

The printing mechanism 300, a printing head frame 310, a printing head 311, a paper channel frame 320, a guide groove 321, a buckling position 3211, a sensor mounting block 322, a tensioning assembly 330, an adjusting bracket 331, a tensioning shaft 332, a guide plate 340, a guide folding edge 341, an adjusting hole 350, a positioning bolt 351, a guide shaft 360, a printing head cover plate 370, a black mark sensor 380, a positioning buckle 381, a paper guide plate 320, a guide groove 321, a buckling position, a sensor mounting block 322, a tensioning assembly 330, an,

A paper roll frame 400, a label paper roll 410,

The position detection assembly 500, the correlation sensor 510, the flat cable 511, the mounting cover 520, the sliding slot 521, the mounting seat 530, the wiring slot 531, the baffle 5311, the sliding block 540, the hook support 541, the clamping plate 542, the positioning spring 543, the connecting cover 550, the connecting seat 560, the positioning mechanism, the positioning,

A pressure adjusting assembly 600, a limiting sleeve 610, a concave part 611, a knob 620, a limiting block 621, an adjusting spring 630,

A printing roller 700, a positioning bearing seat 710, a positioning block 711, a mounting bearing seat 720, a buckle 721, a mounting cylinder 730,

Paper width adjusting block 800, rack 810, damper 820, damping gear 830, main gear 831, pinion 832.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

A barcode printer according to an embodiment of the present invention is described below with reference to fig. 1 to 17.

As shown in fig. 1 and 2, the barcode printer according to the present invention includes a body 100, a paper inlet 130 and a paper outlet 140 are respectively disposed at two ends of the body 100, an installation cavity 150 is disposed inside the body, a carbon ribbon mechanism 200 is disposed inside the installation cavity 150, the carbon ribbon mechanism 200 includes carbon ribbon shafts disposed in pairs, a control box 230 and a fixing plate 240 disposed at two ends of the carbon ribbon shafts, a driving member is disposed on the control box 230, a speed measuring assembly connected to the driving member is disposed inside the body, and a transmission gear set connecting the speed measuring assembly and the carbon ribbon shafts is disposed inside the body; the printing mechanism 300 is disposed below the carbon ribbon mechanism 200, and includes a print head frame 310 having a print head 311, and a paper path frame 320 hinged to the print head frame 310, a tensioning assembly 330 and a guide plate 340 are disposed at two ends of the print head frame 310, respectively, an adjusting hole 350 is disposed on each of the tensioning assembly 330 and the guide plate 340, and a positioning bolt 351 penetrates through the adjusting hole 350 and is connected to the print head frame 310. It can be understood that the carbon ribbon is installed on the carbon ribbon shaft, the printing paper enters from the paper inlet 130 and passes through the paper path frame 320, the carbon ribbon covers the printing paper, after printing is performed by the printing head 311, the printing paper is output from the paper outlet 140, wherein the driving member and the carbon ribbon shaft are respectively arranged at two sides of the control box 230, a speed measurement assembly and a transmission gear set are sequentially connected between the driving member and the carbon ribbon shaft, after the transmission gear set is assembled according to production requirements, the transmission ratio is a fixed value, the speed measurement assembly detects the output rotation speed of the driving member, the rotation speed of the carbon ribbon shaft is calculated according to the transmission ratio of the transmission gear set, real-time feedback is carried out, the current of the driving member is adjusted to adjust the rotation speed of the carbon ribbon shaft, so as to adjust the tension of the carbon ribbon, when the machine is debugged, the installation positions and angles of the tension assembly 330 and the guide plate 340 can be rapidly adjusted by moving the tension assembly 330 and the, the carbon belt is reliably tensioned and evenly stressed, so that the carbon belt is effectively prevented from slipping, wrinkling or breaking, the service life of the carbon belt is prolonged, and the printing quality is improved.

Specifically, the machine body 100 includes an upper casing 110 and a lower casing 120, a paper inlet 130 and a paper outlet 140 are formed at a joint of the upper casing 110 and the lower casing 120, handles 111 are disposed on two sides of the upper casing 110 to facilitate moving the barcode printer, a control panel 112 is disposed at one end of the upper casing 110, a button 113 and an indicator 114 are disposed on the control panel 112, and a transparent window 115 is disposed on the top of the upper casing 110 to facilitate controlling and observing the operating state of the barcode printer.

Further, the barcode printer further includes a paper roll frame 400 disposed on one side of the paper feeding port 130 of the body 100, a label paper roll 410 is mounted on the paper roll frame 400, and a position detecting assembly 500 for detecting a printing start position is disposed at one end of the mounting cavity 150 close to the paper feeding port 130.

As shown in fig. 3 to 5, in some embodiments of the present invention, the position detecting assembly 500 includes an alignment sensor 510, and a mounting box for mounting the alignment sensor 510, the mounting box includes a mounting cover 520 and a mounting seat 530, a sliding slot 521 is disposed on the mounting cover 520, the alignment sensor 510 is disposed in the sliding slot 521 in a penetrating manner, a flat cable 511 is connected to the alignment sensor 510, and accordingly, a cable slot 531 for accommodating the flat cable 511 is disposed on the mounting seat 530. It can be understood that correlation sensor 510 can round trip movement in spout 521, can set for the detection position through manual regulation, and it is convenient to adjust, and when correlation sensor 510 removed, winding displacement 511 was crooked or extended in trough 531 thereupon, and the line was walked in order neatly, avoided the winding between the different circuits, knotted, easy to overhaul, change.

Specifically, a sliding block 540 for installing the correlation sensor 510 is arranged in the sliding groove 521, hook support legs 541 are symmetrically arranged at the bottom of the sliding block 540, a clamping plate 542 and a positioning spring 543 are sleeved on the hook support legs 541, two ends of the positioning spring 543 are respectively abutted against the clamping plate 542 and the hook support legs 541, a connecting cover 550 and a connecting seat 560 are connected to the bottom of the sliding block 540, the correlation sensor 510 is installed between the connecting cover 550 and the connecting seat 560, a flat cable 511 extends out from the joint of the connecting cover 550 and the connecting seat 560 and is placed in a wiring groove 531, and a baffle 5311 is arranged on one side of the wiring groove 531. It can be understood that, slider 540 and splint 542 are established respectively in spout 521 upper and lower both sides, exert pressure to splint 542 through positioning spring 543, slider 540 presss from both sides tight installation lid 520 with splint 542, after correlation sensor 510 passes through slider 540 and moves the regulation in spout 521, can fixed mounting avoid shifting and producing the deviation at the required printing initial position that detects, guarantee printing quality, winding displacement 511 is crooked or is extended at correlation sensor 510 removal in-process, wear out spout 521 when avoiding winding displacement 511 to be crooked through baffle 5311, guarantee to walk the line orderly.

As shown in fig. 6 and 7, in some embodiments of the present invention, the velocity measurement assembly includes a grating gear 250 and a velocity measurement sensor 260, the grating gear 250 is provided with a plurality of detection holes 251, the driving member is provided with a driving gear engaged with the grating gear 250, the driving gear set includes a carbon ribbon gear engaged with the grating gear 250 and a ferrule gear connected with the carbon ribbon shaft, and the carbon ribbon gear is coaxially and fixedly provided with an intermediate gear engaged with the ferrule gear. It can be understood that the driving member drives the grating gear 250 to rotate, the carbon ribbon gear rotates therewith, the intermediate gear rotates synchronously, so as to drive the sleeve gear to rotate, so that the carbon ribbon shaft rotates, the speed measurement sensor 260 detects the time interval that the adjacent detection hole 251 passes through the speed measurement sensor 260, the rotating speed of the grating gear 250 is obtained through calculation, so as to obtain the output rotating speed of the driving member, the rotating speed of the carbon ribbon shaft is obtained through calculation according to the transmission ratio of the gear set, the output rotating speed of the driving member is fed back and controlled in real time, and the rotating speed of the carbon ribbon shaft is adjusted, so that the tension of the carbon ribbon.

Wherein the driving member is provided as a direct current motor.

Specifically, the control box 230 is provided with a rotating sleeve chuck 270 coaxially and fixedly connected with the sleeve chuck gear, the carbon ribbon shaft is connected with the rotating sleeve chuck 270, the carbon ribbon shaft comprises a winding shaft 220 and an unwinding shaft 210, correspondingly, the driving member is provided with a winding motor 221 and an unwinding motor 211, and the transmission gear group is provided with a winding gear 222 group and an unwinding gear 212 group. An unwinding driving gear 2111 meshed with the raster gear 250 is arranged on the unwinding motor 211, the unwinding gear 212 group comprises an unwinding gear 212 meshed with the raster gear 250 and an unwinding sleeve gear 213 connected with the unwinding shaft 210, and an unwinding intermediate gear 2121 meshed with the sleeve gear is arranged on the unwinding gear 212; the winding motor 221 is provided with a winding driving gear 2211 engaged with the grating gear 250, the grating gear 250 is coaxially and fixedly provided with a transition gear 252, the winding gear 222 group comprises a winding gear 222 engaged with the transition gear 252 and a winding ferrule gear 223 connected with the winding shaft 220, and the winding gear 222 is provided with a winding intermediate gear 2221 engaged with the ferrule gear. It can be understood that the winding shaft 220 and the unwinding shaft 210 are driven by the winding motor 221 and the unwinding motor 211 respectively, the winding gear 222 group and the unwinding gear 212 group with different transmission ratios are driven and independently controlled, the rotating speeds of the winding shaft 220 and the unwinding shaft 210 can be conveniently adjusted respectively according to tension changes, and the tension of the carbon ribbon is adjusted through matching of different rotating speeds, so that the tension of the carbon ribbon is ensured.

As shown in fig. 2 and 8, in some embodiments of the invention, the print head 311 is provided with a pressure adjustment assembly 600, the bottom of the print head 311 is provided with a print head cover 370 connected to the print head frame 310, the paper path frame 320 is provided with a print roller 700 corresponding to the print head 311, the print roller 700 is provided with a positioning bearing seat 710 and a mounting bearing seat 720 at two ends respectively, it is understood that the positioning bearing housing 710 and the mounting bearing housing 720 are installed at both sides of the paper path frame 320, the printing roller 700 is fixedly installed, the printing paper is placed on the paper path frame 320, the carbon ribbon and the printing paper pass between the printing head 311 and the printing roller 700, and during printing, the printing head 311 presses down to print, the printing roller 700 is supported at the bottom, when the printing paper is conveyed, the printing head 311 rises, the printing roller 700 rotates, the smooth conveying of the printing paper is ensured, the printing pressure of the printing head 311 is adjusted by the pressure adjusting assembly 600 to adapt to printing paper with different thicknesses.

As shown in fig. 8 to 10, in some embodiments of the present invention, the tensioning assembly 330 includes a tensioning shaft 332 and an adjusting bracket 331 for mounting the tensioning shaft 332, and the adjusting bracket 331 and the guide plate 340 are symmetrically provided with adjusting holes 350, and are fastened to the print head frame 310 by positioning bolts 351. It can be understood that, in the debugging stage before the operation of the barcode printer, the guide plate 340 and the adjusting bracket 331 are moved up and down, the position of the adjusting hole 350 is changed, after the adjustment is completed, the adjusting hole is fastened through the positioning bolt 351, the mounting positions and angles of the guide plate 340 and the adjusting bracket 331 can be respectively and independently adjusted and positioned, and the mounting position and angle of the tensioning shaft 332 are adjusted and positioned, so that the carbon ribbon is tensioned reliably, and the wrinkling of the carbon ribbon is effectively prevented.

Specifically, be provided with direction hem 341 on the deflector 340, and direction hem 341 is the convex pitch arc in middle part, and the relative both ends in middle part are convex 0.5-1.5mm for the carbon ribbon both ends atress is great, and thus to both ends tensile, prevents to corrugate, avoids the carbon ribbon to be overstretched and leads to warping simultaneously, guarantees carbon ribbon reliable operation.

Further, as shown in fig. 2, the control box 230 and the fixing plate 240 are respectively and fixedly disposed on two sides of the top of the printing head frame 310, the guiding shaft 360 is disposed at one end of the printing head frame 310 close to the winding shaft 220, two ends of the guiding shaft 360 are respectively connected with the control box 230 and the fixing plate 240 to support the carbon ribbon, the carbon ribbon is tensioned reliably, the winding shaft 220 is prevented from directly pulling the carbon ribbon to damage the carbon ribbon during winding, and the carbon ribbon is guaranteed to be reliable in work.

As shown in fig. 11, in some embodiments of the present invention, the pressure adjustment assembly 600 includes a limiting sleeve 610 penetrating through the print head holder 310, a knob 620 penetrating through the limiting sleeve 610, and an adjustment spring 630 abutting against the knob 620 and the print head 311 at two ends, respectively, the knob 620 is provided with a limiting block 621, the limiting sleeve 610 is provided with a plurality of concave positions 611 adapted to the limiting block 621, specifically, the number of the concave positions 611 is 6, and the heights of the concave positions 611 arranged on the limiting sleeve 610 are different, and the 6 concave positions 611 are integrally arranged, and the heights are sequentially increased. It can be understood that, the knob 620 is rotated, the concave positions 611 with different heights matched with the limiting block 621 are switched, the installation depth of the adjusting knob 620 in the limiting sleeve 610 is matched and positioned through the limiting block 621 and the concave positions 611, the installation depth of the fixing knob 620 in the limiting sleeve 610 is fixed, when the knob 620 moves downwards, the adjusting spring 630 is compressed, the elastic force is increased, the pressure acting on the printing head 311 is increased, when the knob 620 moves upwards, the adjusting spring 630 is released, the elastic force is reduced, the pressure acting on the printing head 311 is reduced, the pressure of the printing head 311 is quickly adjusted, the printing head 311 is adapted to different printing media such as writing paper and art paper, the bar code is ensured to be printed clearly, after the paper with different thicknesses is replaced, the angle of the printing head 311 does not need to be adjusted, the operation is convenient.

As shown in fig. 12 and 13, in some embodiments of the present invention, the positioning bearing seat 710 and the mounting bearing seat 720 are both provided with a mounting cylinder 730 for mounting the printing roller 700, the positioning bearing seat 710 is symmetrically provided with positioning blocks 711, the mounting bearing seat 720 is symmetrically provided with snaps 721, and accordingly, the paper path frame 320 is provided with a mounting notch. It can be understood that, location bearing frame 710 and installation bearing frame 720 are connected with print roller 700 both ends respectively through installation section of thick bamboo 730, during the installation, location bearing frame 710 axial inserts the installation breach, press buckle 721, press installation bearing frame 720 to the installation breach in downwards, loosen buckle 721, make buckle 721 and paper channel frame 320 lock joint locking, when changing the dismantlement, press buckle 721, after loosening installation bearing frame 720, the axial is taken out location bearing frame 710 can, moreover, the steam generator is simple in structure, the dismouting is convenient, and the maintenance assembly efficiency is improved.

As shown in fig. 14 and 15, in some embodiments of the present invention, paper width adjusting blocks 800 are symmetrically disposed on the paper path frame 320, the paper width adjusting blocks 800 are disposed through the paper path frame 320, and a rack 810 is connected to the bottom of the paper path frame 320, a damper 820 and a damping gear 830 are disposed at the bottom of the paper path frame 320, the damping gear 830 includes a main gear 831 engaged with the rack 810 and a sub-gear 832 engaged with the damper 820, and the main gear 831 is coaxially and fixedly connected to the sub-gear 832. It can be understood that the paper width adjusting block 800 limits printing paper from two sides, when the paper width adjusting block 800 is manually shifted, the rack 810 moves, the damping gear 830 rotates, the damper 820 generates sliding damping force, the paper width adjusting block 800 is prevented from sliding too loosely or too tightly, sliding adjustment hand feeling is controlled, adjustment is facilitated, and limitation reliability is guaranteed.

As shown in fig. 14 and 16, in some embodiments of the present invention, a sensor mounting block 322 and a guide slot 321 are penetratingly disposed on the paper path frame 320, a black mark sensor 380 is disposed on the sensor mounting block 322, a positioning buckle 381 is disposed at the bottom of the sensor mounting block 322, and a buckle position 3211 adapted to the positioning buckle 381 is disposed on the guide slot 321.

As shown in fig. 17, in some embodiments of the present invention, the paper output port 140 is provided with a cutter 141, which can automatically cut off the label paper roll 410, so as to output the barcode label paper one by one, thereby eliminating a subsequent cutting process and improving production efficiency.

A barcode printer according to an embodiment of the present invention is described in detail in one embodiment with reference to fig. 1 to 17. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.

The barcode printer according to the embodiment of the present invention comprises a body 100 having an upper shell 110 and a lower shell 120, a paper inlet 130 and a paper outlet 140 are formed at a joint of the upper shell 110 and the lower shell 120, an installation cavity 150 is arranged inside the body, handles 111 are arranged on two sides of the upper shell 110, a control panel 112 is arranged at one end of the upper shell 110, which is provided with the paper outlet 140, a button 113 and an indicator lamp 114 are arranged on the control panel 112, a transparent window 115 is arranged on the top of the upper shell 110, a paper roll frame 400 is arranged on one side of the paper inlet 130 of the body 100, a label paper roll 410 is arranged on the paper roll frame 400, a carbon ribbon mechanism 200 is arranged in the installation cavity 150, a printing mechanism 300 is connected below the carbon ribbon mechanism 200, and a position detection assembly 500 is.

The position detecting assembly 500 comprises an installation cover 520 and an installation base 530, a sliding groove 521 is formed in the installation cover 520, a sliding block 540 is arranged in the sliding groove 521 in a penetrating mode, hook supporting legs 541 are symmetrically arranged at the bottom of the sliding block 540, clamping plates 542 and positioning springs 543 are sleeved on the hook supporting legs 541, two ends of each positioning spring 543 are respectively abutted to the corresponding clamping plate 542 and the corresponding hook supporting leg 541, a connection cover 550 and a connection base 560 are connected to the bottom of the sliding block 540, a correlation sensor 510 is installed between the connection cover 550 and the connection base 560, the correlation sensor 510 is connected with a flat cable 511, the flat cable 511 extends out of the joint of the connection cover 550 and the connection base 560, a wiring groove 531 with a baffle 5311 at one side is formed in the.

The carbon ribbon mechanism 200 comprises a winding shaft 220, an unwinding shaft 210, a control box 230 and a fixing plate 240 which are arranged at two ends of the winding shaft 220 and the unwinding shaft 210, a winding motor 221 and an unwinding motor 211 are arranged on the control box 230, a raster gear 250 with 16 detection holes 251 and a speed sensor 260 are arranged inside the control box, a transition gear 252 is coaxially and fixedly arranged on the raster gear 250, a winding driving gear 2211 meshed with the raster gear 250 is arranged on the winding motor 221, the transition gear 252 is meshed with the winding gear 222, a winding intermediate gear 2221 is coaxially and fixedly arranged on the winding gear 222, the winding intermediate gear 2221 is meshed with a sleeve gear, the sleeve gear is coaxially and fixedly connected with a rotating sleeve 270 provided with the winding shaft 220, an unwinding driving gear 1 meshed with the raster gear 250 is arranged on the unwinding motor 211, the raster gear 250 is meshed with the unwinding gear 212, an unwinding intermediate gear 2111 is coaxially and fixedly arranged on the unwinding gear 212, the unreeling intermediate gear 2121 is engaged with a ferrule gear, and the ferrule gear is coaxially and fixedly connected with the rotating ferrule 270 on which the unreeling shaft 210 is mounted.

The printing mechanism 300 includes a print head frame 310 and a paper path frame 320 disposed at the bottom of the print head frame 310, and one end of the print head frame 310 is hinged to one end of the paper path frame 320. The printing head frame 310 bottom is provided with printer head 311 and printer head apron 370, printer head 311 top is provided with the spacing sleeve 610 that runs through the installation of printing head frame 310, run through in the spacing sleeve 610 and be provided with knob 620, accommodate in the knob 620 and have adjusting spring 630, adjusting spring 630 both ends respectively with knob 620, printer head 311 butt, be provided with stopper 621 on the knob 620, be provided with 6 concave position 611 with stopper 621 adaptation on the spacing sleeve 610, and each concave position 611 sets up highly inequality on spacing sleeve 610, 6 concave position 611 an organic whole sets up, highly increase in proper order. The printing head frame 310 is provided with an adjusting support 331 provided with a tensioning shaft 332 near one end of the paper inlet 130, a guide plate 340 and a guide shaft 360 are provided near one end of the paper outlet 140, a guide folding edge 341 is provided on the guide plate 340, the guide folding edge 341 is a convex arc line in the middle, the two opposite ends of the middle protrude by 1mm, the two ends of the guide shaft 360 are respectively connected with the control box 230 and the fixing plate 240, adjusting holes 350 are symmetrically provided on the guide plate 340 and the adjusting support 331, and the adjusting holes 350 are penetrated through by positioning bolts 351 to be connected with the printing head frame 310.

The paper path frame 320 is provided with a printing roller 700 corresponding to the printing head 311, two ends of the printing roller 700 are respectively provided with a positioning bearing seat 710 and an installation bearing seat 720, the positioning bearing seat 710 and the installation bearing seat 720 are respectively provided with an installation cylinder 730, the positioning bearing seat 710 is symmetrically provided with positioning blocks 711, the installation bearing seat 720 is symmetrically provided with buckles 721, and the paper path frame 320 is provided with installation notches matched with the positioning bearing seat 710 and the installation bearing seat 720. The paper path frame 320 is provided with a pair of paper width adjusting blocks 800, the paper width adjusting blocks 800 penetrate through the paper path frame 320, the bottom of the paper path frame 320 is connected with a rack 810, the bottom of the paper path frame 320 is provided with a damper 820 and a damping gear 830, the damping gear 830 comprises a main gear 831 meshed with the rack 810 and a secondary gear 832 meshed with the damper 820, and the main gear 831 and the secondary gear 832 are coaxially and fixedly connected. The paper path frame 320 is provided with a sensor mounting block 322 and a guide groove 321 for mounting a sensor mounting hole in a penetrating manner, the sensor mounting block 322 is provided with a black mark sensor 380, the bottom of the sensor mounting block 322 is provided with a positioning buckle 381, and the guide groove 321 is provided with a buckle position 3211 matched with the positioning buckle 381.

According to the bar code printer provided by the embodiment of the invention, at least the following effects can be achieved by the arrangement, the rotating speeds of the driving motor and the carbon ribbon shaft are detected in real time, the current of the driving motor is fed back and adjusted to adjust the rotating speed of the carbon ribbon shaft, so that the tension of the carbon ribbon is adjusted, when the machine is debugged, the position of the adjusting hole is adjusted by vertically moving the tensioning assembly and the guide plate, the tensioning assembly and the guide plate are fastened by using the positioning bolt, the installation position and the angle of the tensioning assembly and the guide plate are quickly adjusted, the carbon ribbon is tensioned reliably and stressed uniformly, the carbon ribbon is effectively prevented from slipping, wrinkling or breaking, the service life of the carbon ribbon is prolonged, the printing quality is improved, the printing initial position is detected by adopting the correlation sensor, the printing positioning is accurate, the printing pressure of the printing head is adjusted by the knob, the.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A barcode printer, comprising:

the paper feeding device comprises a machine body, a paper feeding port, a paper discharging port and an installation cavity, wherein the two ends of the machine body are respectively provided with the paper feeding port and the paper discharging port;

the carbon belt mechanism is arranged in the mounting cavity and comprises carbon belt shafts arranged in pairs, and a control box and a fixing plate which are arranged at two ends of the carbon belt shafts, wherein a driving part is arranged on the control box, a speed measuring component connected with the driving part and a transmission gear group connected with the speed measuring component and the carbon belt shafts are arranged in the control box; and

the printing mechanism is arranged below the carbon ribbon mechanism and comprises a printing head frame with a printing head and a paper path frame hinged with the printing head frame, wherein two ends of the printing head frame are respectively provided with a tensioning assembly and a guide plate, the tensioning assembly and the guide plate are respectively provided with an adjusting hole, and a positioning bolt penetrates through the adjusting hole and is connected with the printing head frame.

2. The barcode printer of claim 1, wherein: the speed measuring assembly comprises a grating gear and a speed measuring sensor, the grating gear is connected with the driving piece, and a plurality of detecting holes are formed in the grating gear in a penetrating mode.

3. The barcode printer of claim 2, wherein: the transmission gear set comprises a carbon ribbon gear meshed with the grating gear and a clamping sleeve gear connected with the carbon ribbon shaft, and an intermediate gear meshed with the clamping sleeve gear is coaxially and fixedly arranged on the carbon ribbon gear.

4. The barcode printer of claim 1, wherein: the tensioning assembly comprises a tensioning shaft and an adjusting support for installing the tensioning shaft, and the adjusting holes are symmetrically formed in the adjusting support.

5. The barcode printer of claim 1, wherein: the printing head is provided with a pressure adjusting assembly, the pressure adjusting assembly comprises a limiting sleeve penetrating through the printing head frame, a knob penetrating through the limiting sleeve, and an adjusting spring, wherein two ends of the adjusting spring are respectively abutted against the knob and the printing head.

6. The barcode printer of claim 5, wherein: the knob is provided with a limiting block, and the limiting sleeve is provided with a plurality of concave positions matched with the limiting block.

7. The barcode printer of claim 1, wherein: the printing roller corresponding to the printing head is arranged on the paper path frame, a positioning bearing seat and an installation bearing seat are respectively arranged at two ends of the printing roller, and a buckle is arranged on the installation bearing seat.

8. The barcode printer of claim 1, wherein: the installation cavity is internally provided with a position detection assembly which comprises a correlation sensor and an installation box for installing the correlation sensor, and the correlation sensor is connected with a flat cable.

9. The barcode printer of claim 8, wherein: the mounting box comprises a mounting cover and a mounting seat, a sliding groove is formed in the mounting cover, the correlation sensor penetrates through the sliding groove, and a wiring groove for accommodating the flat cable is formed in the mounting seat.

10. The barcode printer of claim 1, wherein: the paper roll rack is arranged at one end of the paper inlet of the machine body, and a label paper roll is arranged on the paper roll rack.