CN115179661B - Bill printer with high printing stability - Google Patents
Bill printer with high printing stability Download PDFInfo
- Publication number
- CN115179661B CN115179661B CN202210861087.6A CN202210861087A CN115179661B CN 115179661 B CN115179661 B CN 115179661B CN 202210861087 A CN202210861087 A CN 202210861087A CN 115179661 B CN115179661 B CN 115179661B
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- thermosensitive
- bracket
- heat
- sensitive
- base
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- 238000007639 printing Methods 0.000 title claims abstract description 15
- 230000001154 acute effect Effects 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000001931 thermography Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
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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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/12—Guards, shields or dust excluders
- B41J29/13—Cases or covers
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- Handling Of Sheets (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
The invention provides a bill printer with high printing stability, which comprises a base, a cover body, a rubber roller, a thermosensitive bracket and a thermosensitive sheet, wherein mounting positioning blocks are arranged on two sides of the thermosensitive bracket in the paper width direction, the base is provided with a thermosensitive mounting groove, the thermosensitive module is positioned in the thermosensitive mounting position, one mounting positioning block is positioned in the thermosensitive mounting groove on one side, a spring piece is elastically abutted between the thermosensitive bracket and the base, the spring piece and the thermosensitive mounting groove both extend along the holding direction, a torsion spring piece is elastically abutted between the thermosensitive bracket and the base, the torsion spring piece applies a holding force to the thermosensitive bracket along the holding direction, and an included angle between the holding direction and the holding direction is arranged at an acute angle or at a right angle. The holding force of the holding direction is applied to the heat-sensitive bracket through the torsion spring, and the included angle between the holding direction and the holding direction is arranged at an acute angle or at a right angle, so that the force applied to the heat-sensitive bracket in two directions is realized to maintain the position stability of the heat-sensitive bracket and the heat-sensitive sheet, and the printing stability is effectively improved.
Description
Technical Field
The invention relates to the field of thermal printing, in particular to a bill printer with high printing stability.
Background
Along with the popularization and application of bill printers, the bill printers are used in automatic money drawing machines of banks, cash registers of supermarkets, catering industry and delivery places of electronic commerce, the bill printers are mainly thermal printers adopting thermal paper for thermal imaging, and along with the wider application of application scenes, various functions of the bill printers have higher requirements.
The thermal imaging principle of the printer is mainly to develop the thermal coating on the thermal paper by heating the thermal sensitive sheet so as to present characters and images, so that the position stability of the thermal sensitive sheet and the rubber roller is especially critical, in the prior art, the pressure towards the rubber roller is mainly exerted on the thermal sensitive sheet by a spring, the unidirectional pressing force is often insufficient, and the mounting positioning blocks on two sides of the thermal sensitive sheet are matched with the thermal sensitive mounting groove for positioning, but an assembly gap is reserved between the mounting positioning blocks and the thermal sensitive mounting groove, so that a certain movement space is reserved for the thermal sensitive sheet, and the printing stability is affected.
Disclosure of Invention
The invention aims to provide a bill printer capable of improving printing stability.
In order to achieve the aim of the invention, the invention provides a bill printer with high printing stability, which comprises a base, a cover body, a rubber roller and a thermal module, wherein the cover body is connected with the base, a paper outlet is formed between the cover body and the base, the thermal module is arranged on the base, the rubber roller is rotatably arranged on the cover body, the thermal module and the rubber roller are opposite to each other and form a paper feeding channel, and the paper feeding channel is communicated with the paper outlet; the heat-sensitive module comprises a heat-sensitive bracket and heat-sensitive sheets arranged on the heat-sensitive bracket, wherein the heat-sensitive bracket is provided with mounting positioning blocks at two sides of the paper width direction, the base is provided with heat-sensitive mounting positions, the base is respectively provided with heat-sensitive mounting grooves at two sides of the heat-sensitive mounting positions based on the paper width direction, the heat-sensitive module is positioned in the heat-sensitive mounting positions, one mounting positioning block is positioned in the heat-sensitive mounting groove at one side, and the heat-sensitive sheets are adjacent to the rubber roller; the bill printer further comprises a spring piece and a torsion spring piece, wherein the spring piece is elastically abutted between the thermosensitive bracket and the base, the spring piece and the thermosensitive mounting groove both extend along the holding direction, the torsion spring piece is elastically abutted between the thermosensitive bracket and the base, the torsion spring piece applies holding force to the thermosensitive bracket along the holding direction, and an included angle between the holding direction and the holding direction is in acute angle or right angle arrangement.
According to the scheme, besides the spring piece is used for applying the pressing force in the pressing direction to the thermosensitive bracket, the holding force in the holding direction is applied to the thermosensitive bracket through the torsion spring piece, and the included angle between the pressing direction and the holding direction is arranged at an acute angle or at a right angle, so that the force in two directions is applied to the thermosensitive bracket to maintain the position stability of the thermosensitive bracket and the thermosensitive sheet, and the printing stability is effectively improved.
In a further scheme, the torsion spring member and the rubber roller are respectively positioned at two opposite sides of the thermosensitive module.
From the above, the torsion spring member is arranged at one side close to the spring member, so that the arrangement space of the device is optimized without interfering with the paper feeding of the paper feeding channel.
Still further, the base is provided with the reference column, and torsional spring spare overlaps on the reference column, and the first end and the thermal sensitive support of torsional spring spare are connected, and the second end and the base connection of torsional spring spare.
From the above, the positioning column provides stable installation for the torsion spring member, and then provides stable holding force for the thermosensitive bracket.
In a further scheme, the first end of the torsion spring member is provided with a hook part, and the hook part is connected with the thermosensitive bracket.
In a further scheme, the edge of the thermosensitive bracket far away from one side of the paper outlet is positioned in the hook part.
From the above, the hook part is arranged at the first end of the torsion spring member, so that the holding force is conveniently provided for the thermosensitive bracket, and the assembly is more convenient.
In a further scheme, the number of the torsion spring members is at least two, and the at least two torsion spring members are distributed along the paper width direction.
In a further aspect, the number of the spring members is at least two, and the at least two spring members are distributed along the paper width direction.
From the above, the heat-sensitive bracket is provided with more stable holding force and pressing force by the distribution of the torsion spring members and the spring members along the paper width direction.
In a further scheme, the end part, close to the rubber roller, of the thermosensitive mounting groove in the pressing direction is provided with a blocking wall, limiting walls are arranged on two sides of the blocking wall in the thermosensitive mounting groove, and the mounting positioning block is in clearance fit with the blocking wall and the two limiting walls.
In a further scheme, the end part of the thermosensitive mounting groove, which is far away from the rubber roller in the holding direction, is provided with a loading groove which is perpendicular to the thermosensitive mounting groove and is communicated with the thermosensitive mounting groove.
From the above, the mounting positioning block can be limited in position through the blocking wall and the two limiting walls and is matched with the mounting groove, the mounting positioning block can be conveniently mounted in the thermosensitive mounting groove, and the elastic pressing of the spring piece and the torsion spring piece is utilized, so that good position stability is provided for the thermosensitive bracket.
Drawings
Fig. 1 is a structural view of an embodiment of the ticket printer of the present invention in an upward paper output state.
Fig. 2 is a structural view of an embodiment of the ticket printer of the present invention after opening the cover.
Fig. 3 is a block diagram of an embodiment of the ticket printer of the present invention with the housing omitted.
Fig. 4 is a block diagram of an embodiment of the ticket printer of the present invention in another view after the housing is omitted.
Fig. 5 is a block diagram of an embodiment of the ticket printer of the present invention in another view with the housing inner seat omitted.
Fig. 6 is a block diagram of a portion of a door drive assembly in an embodiment of a ticket printer according to the invention.
Fig. 7 is a block diagram of a cap opener portion in an embodiment of the ticket printer of the present invention.
Fig. 8 is a cross-sectional view of an embodiment of the ticket printer of the present invention in a width direction at the stopper clamp block.
Fig. 9 is a cross-sectional view of an embodiment of the ticket printer of the present invention in a longitudinal direction at the stopper clamp block.
Fig. 10 is a block diagram of a latch member and a thermal module in an embodiment of a ticket printer according to the present invention.
FIG. 11 is a cross-sectional view of the torsion spring member in an embodiment of the ticket printer of the present invention.
Fig. 12 is a block diagram of a cover in an embodiment of the ticket printer of the present invention.
Fig. 13 is an exploded view of the cover in an embodiment of the ticket printer of the present invention.
Fig. 14 is an exploded view of the cover in another view of an embodiment of the ticket printer of the present invention.
Fig. 15 is a cross-sectional view of a cover at an abutment block in an embodiment of the ticket printer of the present invention.
Fig. 16 is a block diagram of an embodiment of the ticket printer of the present invention in a forward paper out state.
Fig. 17 is a cross-sectional view of a ticket printer embodiment of the invention at a positioning tab.
The invention is further described below with reference to the drawings and examples.
Detailed Description
Referring to fig. 1 to 6, the ticket printer includes a base 2, a cover 1, a rubber roller 43, a thermal sheet 422, a latch 41, two snap-fit elastic members 414 and a cover opening driving assembly 3, the cover 1 is hinged to the base 2, a paper outlet 101 is formed between the cover 1 and the base 2, the thermal sheet 422 is arranged on the base 2, the rubber roller 43 is rotatably arranged on the cover 1, the thermal sheet 422 and the rubber roller 43 are opposite to each other and form a paper feeding channel, the base 2 is provided with a paper bin 103, and the paper feeding channel is communicated between the paper bin 103 and the paper outlet 101.
The base 2 includes an inner base 22 and a housing 21, the heat sensitive sheet 422 is disposed on the inner base 22, the latch member 41 is provided with two latch hooks 411, an automatic driving portion 412 and a manual driving portion 413, the two latch hooks 411 are located at two sides of the paper width direction, the automatic driving portion 412 and the manual driving portion 413 are all arranged in a flat plate and located on the same side, the latch member 41 is rotatably disposed on the inner base 22 through the rotation shaft 43, and the latch elastic member 414 is connected between the inner base 22 and the latch member 41.
The cover opening drive assembly 3 is located on one side of the inner seat 22 in the paper width direction, the cover opening drive assembly 3 includes a cover opening drive motor 31, a worm wheel 33, a worm 32, a cam 34, a mounting bracket 23 and a trigger 332, the mounting bracket 23 is fixedly connected with the inner seat 22 of the base 2 and located on one side of the inner seat 22 in the width direction, the mounting bracket 23 is provided with a rotation groove 231 on the inside, the rotation groove 231 is provided with a mounting through hole in a penetrating manner, the cam 34, the worm wheel 33 and the worm 32 are all located in the rotation groove 231, the cover opening drive motor 31 is located outside the rotation groove 231 and fixedly connected with the mounting bracket 23, a driving shaft of the cover opening drive motor 31 is connected with the worm 32 through the mounting through hole, the cam 34 and the worm wheel 33 are integrally arranged and coaxially connected and synchronously rotated, the cam 34 is located on the inside of the worm wheel 33, the worm wheel 33 and the cam 34 are rotatably arranged on the mounting bracket 23, the worm 32 is connected between the cover opening drive motor 31 and the worm wheel 33, the worm wheel 33 is provided with a boss 331 on an end face near the outer circumference of the worm wheel 331 located on the outer circumference of the rotation axis of the 33, the trigger 332 is fixedly mounted on the mounting bracket 23, the worm wheel 331, the boss 331 is adjacent to the end of the trigger 332.
Referring to fig. 4 and 5, the thermal printer is in a state in which the paper outlet 101 is upwardly discharged, based on which the automatic driving portion 412 is located above the cam 34, the worm 32 is located below the worm wheel 33 and is disposed in a horizontal direction, and the cover opening driving motor 31 is located at an axially rear end of the worm 32, the cam 34 is provided with a driving protrusion 341, under the driving action of the cover opening driving motor 31, the driving protrusion 341 of the cam 34 is rotated around the worm wheel 33 along a horizontal rotation axis, and then the driving protrusion 341 abuts against the automatic driving portion 412, and the movement of the driving protrusion 341 sequentially drives the automatic driving portion 412 and the lock hook 411 to move, so that the lock hook 411 is detachably engaged with an axial end portion of the rubber roller 43.
Referring to fig. 6 to 9, the bill printer further includes a reset elastic member 455, a cover opening wrench 45 and a limit clamp 46, the cover opening wrench 45 includes a wrench flat plate 451, a manual pulling portion 452 and two cover opening rotating shafts 453, the outer surface of the wrench flat plate 451 is arranged in a flat plane, the manual pulling portion 452 is located at the inner side of the wrench flat plate 451, the two cover opening rotating shafts 453 are respectively located at two opposite sides of the wrench flat plate 451, the cover opening rotating shaft 453 at one side is provided with a connecting column 454 at an axial outer end extension thereof, and the connecting column 454 is provided with a positioning groove in a radial direction.
The limiting clamping block 46 is provided with clamping columns 461 at two opposite sides, the end parts of the clamping columns 461 are provided with guide inclined planes, the limiting clamping block 46 is provided with two clamping buckles 462, and the two clamping buckles 462 are positioned between the two clamping columns 461.
The inner seat 22 is provided with mounting groove 221 in the lateral wall of width direction, mounting groove 221 is provided with the change groove 222 in opposite both sides, the inboard of change groove 222 is provided with spacing groove 223, shell 21 runs through and is provided with fluting 211, mounting groove 221, fluting 211 and change groove 222 all are arranged along the horizontal direction, spacing groove 223 is arranged along vertical direction, spacing groove 223 is provided with inserted hole 224 at the top of inner seat 22 along vertical direction, be provided with stopper 225 and two draw-in grooves 226 in the mounting groove 221, stopper 225 is located the below of two draw-in grooves 226, spanner flat 451 and manual portion 452 are located mounting groove 221, manual portion 452 is located and is close to the below at stopper 225 inboard, a pivot 453 that uncaps is located the change groove 222 of one side, reset elastic member 455 adopts the torsional spring, the torsional spring cover is outside spliced pole 454, the first end of torsional spring is connected with the constant head of spliced pole 454, the second end of torsional spring is connected with the locating piece of inner seat 22.
When the housing 21 is fitted over the inner seat 22, the groove 211 is located outside the mounting groove 221 and communicates with the mounting groove 221, the wrench flat plate 451 is located at the groove 211, the housing 21 is covered on the outside of the rotation groove 222, then the limit clip 46 is fitted into the limit groove 223 from the insertion opening 224, the guide slope of the end of the clip column 461 abuts against the lid opening rotation shaft 453 and drives the lid opening rotation shaft 453 to move outwards, as the clip column 461 is inserted inside the rotation groove 222, then the lid opening rotation shaft 453 is clearance-fitted between the housing 21 and the clip column 461, the outer surface of the wrench flat plate 451 is located on the same plane as the outer surface of the housing 21, and is engaged with the clip groove 226 by the clip 462, thereby stabilizing the positions of the lid opening wrench 45 and the limit clip 46.
The cover opening shaft 453 can rotate in the rotary groove 222, the manual pulling portion 452 can be adjacent to the manual driving portion 413 and drive the manual driving portion 413 to move, and the movement of the manual driving portion 413 drives the latch hook 411 to move, so that the latch hook 411 and the axial end portion of the rubber roller 43 can be detachably clamped.
Referring to fig. 10 and 11, when the thermosensitive module 42 is actually assembled, the thermosensitive module 42 includes a thermosensitive bracket 421 and a thermosensitive sheet 422 provided on the thermosensitive bracket 421, the thermosensitive bracket 421 is provided with mounting blocks 423 on both sides in the paper width direction Y, the inner seat 22 is provided with thermosensitive mounting positions, the inner seat 22 is provided with thermosensitive mounting grooves 227 on both sides in the paper width direction Y based on the thermosensitive mounting positions, the thermosensitive mounting grooves 227 are provided with blocking walls 2271 near ends of the rubber roller 43 in the holding direction, the thermosensitive mounting grooves 227 are provided with limiting walls 2272 on both sides of the blocking walls 2271, the thermosensitive mounting grooves 227 are provided with loading grooves 228 on ends far from the rubber roller 43 in the holding direction, the loading grooves 228 are perpendicular to the thermosensitive mounting grooves 227 and communicate with the thermosensitive mounting grooves 227, the mounting blocks 423 of the thermosensitive bracket 421 are loaded into the thermosensitive mounting grooves 227 from the loading grooves 228, and the mounting blocks 423 are in clearance fit with the blocking walls 2271 and the two limiting walls 2272.
The inner seat 22 is provided with a rubber roller mounting groove at the side of the thermosensitive mounting groove 227, the rubber roller mounting groove is used for mounting the axial end of the rubber roller, the thermosensitive module 42 is located in the thermosensitive mounting position, the thermosensitive sheet 422 is adjacent to the rubber roller 43, the side of the rubber roller mounting groove is provided with a trigger 44, and the trigger 44 is used for detecting whether the rubber roller 43 is mounted in place.
The bill printer further comprises three spring members 424 and two torsion spring members 425, wherein the spring members 424 are elastically abutted between the thermosensitive bracket 421 and the base 2, the torsion spring members 425 and the rubber roller 43 are respectively positioned on two opposite sides of the thermosensitive module 42, the three spring members 424 are distributed along the paper width direction Y, of course, the number of the spring members 424 can be two or more, the spring members 424 and the thermosensitive mounting groove 227 extend along the pressing direction a1, and the spring members 424 apply a pressing force along the pressing direction a1 to the thermosensitive bracket 421.
The inner seat 22 is provided with a positioning column 428, a torsion spring member 425 is sleeved on the positioning column 428, a first end 426 of the torsion spring member 425 is connected with the heat-sensitive bracket 421, specifically, the first end 426 of the torsion spring member 425 is provided with a hook part, the hook part is connected with the heat-sensitive bracket 421, the edge of the heat-sensitive bracket 421 far away from one side of the paper outlet 101 is positioned in the hook part, and a second end 427 of the torsion spring member 425 is connected with the base 2. The torsion spring member 425 applies a holding force to the heat sensitive bracket 421 in a holding direction a2, and an included angle between the holding direction a1 and the holding direction a2 is arranged at an acute angle or a right angle. In addition, two torsion spring members 425 are distributed along the paper width direction Y and are respectively connected and matched with the heat sensitive bracket 421.
Referring to fig. 12 to 15, the ticket printer further includes a cutter device, an abutment block 16 and an abutment elastic member 162, the cutter device includes a main cutter assembly 13 and an auxiliary cutter assembly 132, the main cutter assembly 13 is mounted on the cover 1 and located at the paper outlet 101, the main cutter assembly 13 includes a cutter driving motor and a main cutter 131, the cutter driving motor drives the main cutter 131 to move toward or away from the auxiliary cutter assembly 132, and the auxiliary cutter assembly 132 is mounted on the base 2 and located at the paper outlet 101.
The cover body 1 comprises a bottom cover 11 and a surface cover 12, wherein the bottom cover 11 is provided with a containing cavity, the main cutter assembly 13 is arranged in the containing cavity, the bottom cover 11 is provided with a first clamping groove 113 at a first side of the paper width direction Y, the bottom cover 11 is provided with two positioning grooves 114 and a sliding groove 115 at a second side of the paper width direction Y, the abutting block 16 can be movably arranged in the sliding groove 115 along the paper width direction Y, a limiting groove 164 extending along the paper width direction Y is arranged in the sliding groove 115, the abutting block 16 is provided with a limiting buckle 165, the limiting buckle 165 is movably arranged in the limiting groove 164 and is clamped with the limiting groove 164, the abutting block 16 is provided with an assembly groove 163, a first end of the abutting elastic piece 162 is positioned in the assembly groove 163, a second end of the abutting elastic piece 162 is connected with the inner wall of the sliding groove 115, then the abutting elastic piece 162 applies an outward elastic force to the abutting block 16, the abutting block 16 is provided with two second clamping grooves 161, and the two second clamping grooves 161 are distributed along the paper length direction X. Two positioning grooves 114 are located on both sides of the paper length direction X, the positioning grooves 114 extend in the paper width direction Y and are provided with inlets at the ends of the paper width direction Y, and the positioning grooves 114 are provided with openings in the paper length direction.
The face lid 12 is provided with interior recess 124, face lid 12 is provided with two first buckles 121 at the first side lateral wall of interior recess 124 based on paper width direction Y, two first buckles 121 are along paper length direction distribution, face lid 12 is provided with two second buckles 122 at the second side lateral wall of interior recess 124 based on paper width direction Y, two second buckles 122 are along paper length direction distribution, face lid 12 is provided with two reference column 123 at paper width direction Y's second side, two reference column 123 are located paper length direction's both sides, two second buckles 122 are located the inboard of two reference column 123, face lid 12 is provided with baffle 125 at the front side, baffle 125 is provided with window 126.
The bill printer further comprises an infrared sensor 14, the infrared sensor 14 is arranged on the main cutter assembly 13 and faces the paper outlet 101, when the face cover 12 is assembled, the positioning column 123 is firstly arranged in the positioning groove 114 from the inlet, then the face cover 12 covers the accommodating cavity and covers the outer side of the main cutter assembly 13, the baffle 125 covers the outer side of the main cutter assembly 13, the window 126 is positioned at the infrared sensor 14, the inner groove 124 of the face cover 12 covers the outer side of the first clamping groove 113 and the abutting block 16, the second clamping groove 161 is clamped through the second clamping buckle 122, the face cover 12 is moved along the width direction Y, the first clamping buckle 121 can be conveniently clamped with the first clamping groove 113, after external force is withdrawn, under the action of the abutting elastic piece 162, the second side of the face cover 12 is elastically abutted through the abutting block 16, and the matching of the two side clamping buckles and the clamping grooves, so that stable installation of the face cover 12 is realized.
Referring to fig. 16 and 17, and referring to fig. 1 to 3, the ticket printer further includes a touch pad 5, an angle sensor (not shown) and a main control circuit board 53, the angle sensor and the main control circuit board 53 are both disposed on the base 2 and located in the housing 21, the angle sensor is a ball type angle sensor, the angle sensor may be disposed on the main control circuit board 53 and connected with the main control circuit board 53, or the angle sensor may be disposed at other positions on the base 2 and connected with the main control circuit board 53 through a wire, and of course, the angle sensor may also employ other forms of sensors capable of acquiring an angle change or an inclination change, and a detection angle of the angle sensor is associated with the paper output direction X of the paper output port 101. The touch panel 5 extends along the paper width direction Y, the touch panel 5 is provided with a display screen 51 in the middle, the touch panel 5 is provided with a plurality of keys 52 on both horizontal sides of the display screen 51, and the display screen 51 and the keys 52 are connected with a main control circuit board 53.
Referring to fig. 1, the thermal printer is illustrated in a state in which the paper outlet 101 faces upward, the cover 1 is disposed on the top side of the base 2, the paper outlet 101 is disposed toward the top side, the display screen 51 is disposed at a junction between the top side and the front side of the base 2, the display screen 51 is inclined to the front surface of the base 2 on the front side, and the display screen 51 is inclined to the upper surface of the base 2 on the top side. When the angle sensor detects that the paper outlet 101 is disposed toward the top side, the main control circuit board 53 drives the display screen 51 to display characters and patterns in the current vertical direction and receives an input signal of the key 52 in the current vertical direction.
Referring to fig. 16, when the thermal printer is turned over to make the paper outlet 101 discharge paper horizontally, then the angle sensor can learn the change of the angle state, then the main control circuit board 53 drives the display screen 51 to display characters and patterns in the current vertical direction, the display state of fig. 16 is turned over compared with the display state of fig. 1, and receives an input signal of the key 52 in the current vertical direction.
Referring to fig. 16 and referring to fig. 13, a paper bin 103 is disposed in the base 2, the cover 1 covers the paper bin 103, the cover 1 is provided with two positioning elastic pieces 15, the two positioning elastic pieces 15 are distributed along the paper width direction Y, specifically, a first through hole 111 and a second through hole 112 are penetratingly disposed on the inner surface of the cover 1, a fixed end 151 of the positioning elastic piece 15 penetrates through the first through hole 111 and is fixed on the inner side of the cover 1, a free end 152 of the positioning elastic piece 15 penetrates through the second through hole 112 and is abutted with the inner side of the cover 1, a protruding portion 153 is disposed between the free end 152 and the fixed end 151 of the positioning elastic piece 15, the protruding portion 153 is located outside the cover 1 and protrudes towards the paper bin 103, and the positioning elastic piece 15 is located on one side far from the paper outlet 101.
When the paper outlet 101 is arranged towards the horizontal front side as shown in fig. 17, the printing paper roll 102 is positioned in the paper bin 103 and is close to the cover body 12, so that the two positioning elastic sheets 15 are elastically abutted against the printing paper roll 102, and limit on the printing paper roll 102 is formed.
Of course, the above embodiment is only a preferred embodiment of the present invention, and more changes may be made in the specific application, based on the application principles of the different functions, the thermal sensitive sheet may also be mounted on the cover, the rubber roller is mounted on the base, the paper length direction X in the present invention is perpendicular to the paper width direction Y, the paper length direction X will change along with the placement position of the thermal printer, the orientation of the paper outlet or the cover opening of the cover, and the paper length direction X can achieve the purpose of the present invention as long as being located on the plane perpendicular to the paper width direction Y, and the changes are also within the protection scope of the present invention.
From above, drive the cam through uncapping driving motor and rotate, utilize the drive protruding and the automatic drive portion adjacency of cam, then drive bellied removal and drive automatic drive portion and latch hook and remove in succession to realize the axial tip separation of latch hook and rubber roll, can carry out the change of printing paper after the lid is opened, utilize automatic electronic uncapping, more be convenient for user's operation use. The cover-opening driving motor drives the worm wheel to rotate, and the worm wheel drives the cam to rotate, so that the unidirectional rotation cover-opening driving motor drives the cam to rotate towards the same direction, and the cam is switched between contact with and separation from the automatic driving part along with the rotation of the cam, so that locking and unlocking of the lock hook are realized.
Moreover, through uncapping the pivot clearance fit between shell and card post, make the position relatively fixed of uncapping the spanner then, make the surface of shell and the position correlation of the surface of spanner flat board fixed just be smooth the arranging, thereby make the bill printer open the cover the spanner side the surface relatively smooth, in addition in the aspect of the spanner of assembly uncapping, can pack into the change inslot with the pivot earlier, cover the shell again, pack into the spacing groove with spacing fixture block at last, then utilize card post and shell formation to open the spacing of lid pivot, can effectively improve assembly ease and assembly efficiency. The spanner can be pulled to reset and relatively fixed in position through the reset elastic piece, and the elastic connection of the matched connecting column is matched, so that the clearance fit positioning of the cover opening rotating shaft is not affected, and the limiting block is abutted to the manual pulling part, so that the position stability of the cover opening spanner can be further improved.
In addition, except that the spring part is adopted to apply the pressing force in the pressing direction to the thermosensitive bracket, the scheme also applies the holding force in the holding direction to the thermosensitive bracket through the torsion spring part, and the included angle between the pressing direction and the holding direction is in acute angle or right angle arrangement, so that the force in two directions is applied to the thermosensitive bracket to maintain the position stability of the thermosensitive bracket and the thermosensitive plate, and the printing stability is effectively improved. The first end of the torsion spring member is provided with the hook part, so that the heat-sensitive bracket can be conveniently provided with a holding force, and the assembly is more convenient.
And, utilize the second side elasticity butt of butt piece and face lid to and the assembly location of reference column and constant head tank, cooperate first buckle and first draw-in groove block again to provide stable installation fixedly for the face lid, and when dismantling or assembling, promote face lid and butt piece along paper width direction, then can make first buckle and first draw-in groove separation or block, thereby realize the easy dismouting of face lid, in order to solve the card sword condition of main knife subassembly of user.
And acquiring the placement state of the current bill printer through the angle sensor, namely detecting and acquiring the direction of the paper outlet, so that the display screen is driven through the main control circuit board, and the display direction of the display screen can be turned over to adapt to the paper outlet direction, thereby facilitating the reading of information or operation of a user. Through setting up the juncture at top side and front side with the display screen, and be the slope and arrange, consequently the printer goes forward or goes out paper up, and the user can both conveniently watch the display screen. Through setting up the juncture at top side and front side with the display screen, and be the slope and arrange, consequently the printer goes forward or goes out paper up, and the user can both conveniently watch the display screen.
Claims (4)
1. The utility model provides a bill printer of high printing stability, includes base, lid, rubber roll and thermal module, the lid connect in the base, the lid with form the paper outlet between the base, thermal module sets up on the base, the rubber roll rotationally sets up on the lid, thermal module with the rubber roll is relative and form the paper feed passageway, the paper feed passageway with the paper outlet intercommunication;
the method is characterized in that:
the heat-sensitive module comprises a heat-sensitive support and heat-sensitive sheets arranged on the heat-sensitive support, wherein mounting positioning blocks are arranged on two sides of the heat-sensitive support in the paper width direction, a heat-sensitive mounting position is arranged on the base, heat-sensitive mounting grooves are respectively arranged on two sides of the heat-sensitive mounting position based on the paper width direction, the heat-sensitive module is positioned in the heat-sensitive mounting position, one mounting positioning block is positioned in one heat-sensitive mounting groove, and the heat-sensitive sheets are adjacent to the rubber roller;
the bill printer further comprises a spring piece and a torsion spring piece, wherein the spring piece is elastically abutted between the thermosensitive bracket and the base, the spring piece and the thermosensitive mounting groove extend along the holding direction, the torsion spring piece is elastically abutted between the thermosensitive bracket and the base, the torsion spring piece applies holding force to the thermosensitive bracket along the holding direction, and an included angle between the holding direction and the holding direction is arranged at an acute angle or a right angle;
the torsion spring piece and the rubber roller are respectively positioned at two opposite sides of the thermosensitive module;
the base is provided with a positioning column, the torsion spring piece is sleeved on the positioning column, the first end of the torsion spring piece is connected with the thermosensitive bracket, and the second end of the torsion spring piece is connected with the base;
the first end of the torsion spring piece is provided with a hook part which is connected with the thermosensitive bracket;
the edge of the thermosensitive bracket, which is far away from one side of the paper outlet, is positioned in the hook part;
the number of the torsion spring members is at least two, and at least two torsion spring members are distributed along the paper width direction.
2. The ticket printer of claim 1, wherein:
the number of the spring pieces is at least two, and at least two spring pieces are distributed along the paper width direction.
3. The ticket printer of claim 1, wherein:
the end part, close to the rubber roller, of the thermosensitive mounting groove in the pressing direction is provided with a blocking wall, limiting walls are arranged on two sides of the blocking wall in the thermosensitive mounting groove, and the mounting positioning block is in clearance fit with the blocking wall and the two limiting walls.
4. A ticket printer as claimed in claim 3, wherein:
the end part of the thermosensitive mounting groove, which is far away from the rubber roller in the pressing direction, is provided with a loading groove which is perpendicular to the thermosensitive mounting groove and communicated with the thermosensitive mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210861087.6A CN115179661B (en) | 2022-07-21 | 2022-07-21 | Bill printer with high printing stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210861087.6A CN115179661B (en) | 2022-07-21 | 2022-07-21 | Bill printer with high printing stability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115179661A CN115179661A (en) | 2022-10-14 |
| CN115179661B true CN115179661B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210861087.6A Active CN115179661B (en) | 2022-07-21 | 2022-07-21 | Bill printer with high printing stability |
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| Country | Link |
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| CN (1) | CN115179661B (en) |
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| CN206406618U (en) * | 2017-04-06 | 2017-08-15 | 珠海智汇网络设备有限公司 | Label machine |
| CN110001213A (en) * | 2018-01-04 | 2019-07-12 | 深圳华清心仪医疗电子有限公司 | 12 lead thermal printer |
| CN214188954U (en) * | 2020-11-10 | 2021-09-14 | 珠海浩盛标签打印机有限公司 | Thermal printer capable of being used for printing express waybills |
| CN113752706A (en) * | 2021-10-13 | 2021-12-07 | 厦门仕旺慧节能科技有限公司 | Support structure of thermal printing head |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09216436A (en) * | 1996-02-13 | 1997-08-19 | Seiko Epson Corp | Press mechanism of thermal head and printer using the same |
| CN103842181A (en) * | 2011-10-07 | 2014-06-04 | 富士通电子零件有限公司 | Printer device |
| CN203637348U (en) * | 2013-11-04 | 2014-06-11 | 深圳市理邦精密仪器股份有限公司 | Thermal printer and medical device using same |
| CN206406618U (en) * | 2017-04-06 | 2017-08-15 | 珠海智汇网络设备有限公司 | Label machine |
| CN110001213A (en) * | 2018-01-04 | 2019-07-12 | 深圳华清心仪医疗电子有限公司 | 12 lead thermal printer |
| CN214188954U (en) * | 2020-11-10 | 2021-09-14 | 珠海浩盛标签打印机有限公司 | Thermal printer capable of being used for printing express waybills |
| CN113752706A (en) * | 2021-10-13 | 2021-12-07 | 厦门仕旺慧节能科技有限公司 | Support structure of thermal printing head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115179661A (en) | 2022-10-14 |
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