CN115122787B - Electronic bill printer of uncapping - Google Patents

Electronic bill printer of uncapping Download PDF

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Publication number
CN115122787B
CN115122787B CN202210861020.2A CN202210861020A CN115122787B CN 115122787 B CN115122787 B CN 115122787B CN 202210861020 A CN202210861020 A CN 202210861020A CN 115122787 B CN115122787 B CN 115122787B
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CN
China
Prior art keywords
cam
groove
cover opening
cover
clamping
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Application number
CN202210861020.2A
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Chinese (zh)
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CN115122787A (en
Inventor
郑小春
杜天德
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Zhuhai Baiyin Automation Equipment Co ltd
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Zhuhai Baiyin Automation Equipment Co ltd
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Application filed by Zhuhai Baiyin Automation Equipment Co ltd filed Critical Zhuhai Baiyin Automation Equipment Co ltd
Priority to CN202210861020.2A priority Critical patent/CN115122787B/en
Publication of CN115122787A publication Critical patent/CN115122787A/en
Application granted granted Critical
Publication of CN115122787B publication Critical patent/CN115122787B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/12Guards, shields or dust excluders
    • B41J29/13Cases or covers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315Typewriters 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
    • B41J2/32Typewriters 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns

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  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

The invention provides an electronic bill printer of uncapping, including base, cover, rubber roll, heat-sensitive sheet, latch fitting and lock elastic component, the latch fitting has latch hook and automatic drive part, the latch fitting is rotatably set up on base, lock elastic component connects between base and latch fitting, the bill printer also includes uncapping drive assembly, uncapping drive assembly includes uncapping drive motor and cam, uncapping drive motor connects with cam and drives the cam to rotate, the cam has driving projections, the driving projections are adjacent to automatic drive part, the movement of driving projections drives automatic drive part and latch hook to move sequentially, the latch hook can be separated and clamped with axial end of rubber roll. The cover opening driving motor drives the cam to rotate, so that the axial end part of the lock hook and the rubber roller is separated, printing paper can be replaced after the cover body is opened, and the automatic electric cover opening is utilized, so that the cover opening device is more convenient for a user to operate and use.

Description

Electronic bill printer of uncapping
Technical Field
The invention relates to the field of thermal printing, in particular to a bill printer with an electric cover.
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 existing bill printer is generally opened by manual mode, the cover opening piece is manually pulled, then the internal lock hook is driven, the lock hook is separated from the rubber roller, and accordingly the rubber roller is separated, printing paper is convenient to replace subsequently, the manual cover opening is inconvenient to use in certain scenes, and therefore another more convenient cover opening mode needs to be designed.
Disclosure of Invention
The invention aims to provide a bill printer with an electric cover opening function, which is convenient to use.
The invention provides a bill printer with an electric cover, which comprises a base, a cover body, a rubber roller, a thermosensitive sheet, a locking piece and a buckling elastic piece, wherein the cover body is connected to the base, a paper outlet is formed between the cover body and the base, the thermosensitive sheet is arranged on the base, the rubber roller is rotatably arranged on the cover body, the thermosensitive sheet is opposite to the rubber roller and forms a paper feeding channel, and the paper feeding channel is communicated with the paper outlet; the latch piece is provided with latch hook and automatic drive portion, and latch piece rotationally sets up on the base, and the lock elastic component is connected between base and latch piece, and bill printer still includes the drive assembly that uncaps, and the drive assembly that uncaps includes drive motor and cam that uncaps, drive motor and cam connection and drive cam rotation uncaps, and the cam is provided with the drive arch, and the drive arch is adjacent with automatic drive portion, and the bellied removal of drive drives automatic drive portion and latch hook removal in succession, and latch hook and the detachable block of the axial tip of rubber roll.
According to the scheme, the cam is driven to rotate through the cover opening driving motor, the driving protrusion of the cam is utilized to be adjacent to the automatic driving part, and then the automatic driving part and the lock hook are driven to move sequentially by the movement of the driving protrusion, so that the axial end separation of the lock hook and the rubber roller is realized, the printing paper can be replaced after the cover body is opened, and the automatic electric cover opening is utilized, so that the printing paper is more convenient for a user to operate and use.
In a further scheme, the cover opening driving assembly further comprises a worm wheel and a worm, the worm wheel is coaxially connected with the cam and synchronously rotates, and the worm is connected between the cover opening driving motor and the worm wheel.
From the above, the worm wheel is driven to rotate by the cover opening driving motor, and the worm wheel drives the cam to rotate, so that the unidirectional rotation cover opening driving motor is realized to drive 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.
Still further scheme is, uncapping drive assembly still includes the installing support, and worm wheel and cam rotationally set up on the installing support, uncapping drive motor fixed setting is on the installing support, installing support and base fixed connection.
From the above, can carry out stable installation to open lid driving motor, worm wheel and cam through the installing support, again with the installing support of wholly installing again on the base to the assembly location of the equipment of being convenient for.
Still further scheme is, the installing support is provided with the rotation groove in the inboard, and the rotation groove runs through and is provided with the installation through-hole, and cam, worm wheel and worm all are located the rotation inslot, and the drive motor that uncaps is located the rotation inslot outside, and the drive motor's that uncaps drive shaft passes the installation through-hole and is connected with the worm.
From the above, the protection device is realized by installing the cam, the worm wheel and the worm inside.
Still further in the scheme, the cover opening driving assembly further comprises a trigger fixedly installed on the installing support, the cam is located on the inner side of the worm wheel, the worm wheel is provided with a convex column on the end face of the outer periphery, the convex column is located on the outer periphery of the rotation axis of the worm wheel, and the convex column is adjacent to the triggering end of the trigger.
From the above, the position of the convex column is detected by the trigger, so that the rotation position condition of the convex column is known, and the rotation control of one circle of the cam is realized.
Further, the automatic driving part is positioned above the cam, and the worm is positioned below the worm wheel.
Still further, the cam and worm gear are integrally formed.
From the above, through the relative position of rationally arranging automatic drive portion, cam and worm to optimize the arrangement space of device, make printer structure compacter.
Still further, the bill printer further comprises a cover opening wrench, the locking piece is provided with a manual driving part, the cover opening wrench is movably arranged on the base, and the cover opening wrench is adjacent to the manual driving part and can drive the manual driving part to move.
From the above, the cover can be opened by the cover opening wrench for manual cover opening, and then the cover can be opened under the condition of non-electrifying.
Still further, the automatic driving part and the manual driving part are both positioned on the same side of the locking piece.
From the above, the same side arrangement of the two driving parts is utilized, so that the arrangement of the driving structure is optimized, and the structure is more compact.
Still further scheme is, bill printer still includes touch-control board and main control circuit board, and the touch-control board is connected with main control circuit board, and main control circuit board is connected with uncapping driving motor.
From the above, the user can easily and conveniently operate the touch pad, and the automatic electric uncovering is realized by using the transmission of control signals.
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 (8)

1. The utility model provides a bill printer of electronic uncapping, includes base, lid, rubber roll, heat-sensitive piece, latch fitting and lock elastic component, the base includes interior seat and shell, the lid connect in the base, the lid with form the paper outlet between the base, the heat-sensitive piece sets up on the interior seat, the rubber roll rotationally sets up on the lid, the heat-sensitive piece with the rubber roll is relative and form the paper feed passageway, the paper feed passageway with the paper outlet intercommunication;
The locking piece is provided with a locking hook and an automatic driving part, the locking piece is rotatably arranged on the base, and the locking elastic piece is connected between the base and the locking piece;
The method is characterized in that:
The bill printer further comprises a cover opening driving assembly, the cover opening driving assembly comprises a cover opening driving motor and a cam, the cover opening driving motor is connected with the cam and drives the cam to rotate, the cam is provided with a driving protrusion, the driving protrusion is adjacent to the automatic driving part, the automatic driving part and the lock hook are driven to move sequentially by movement of the driving protrusion, and the lock hook is detachably clamped with the axial end part of the rubber roller;
The bill printer further comprises a reset elastic piece, an uncovering wrench and a limiting clamping block, wherein the uncovering wrench comprises a wrench flat plate, a manual pulling part and two uncovering rotating shafts, the outer surface of the wrench flat plate is arranged in a flat plane, the manual pulling part is positioned at the inner side of the wrench flat plate, the two uncovering rotating shafts are respectively positioned at two opposite sides of the wrench flat plate, a connecting column is arranged at the outer end of one side of the uncovering rotating shaft in an extending mode in the axial direction, and a positioning groove is formed in the connecting column in the radial direction;
The limiting clamping blocks are provided with clamping columns at two opposite sides, guide inclined planes are arranged at the end parts of the clamping columns, the limiting clamping blocks are provided with two buckles, and the two buckles are positioned between the two clamping columns;
The side wall of the inner seat in the width direction is provided with a mounting groove, the mounting grooves are provided with rotating grooves on two opposite sides, the inner side of each rotating groove is provided with a limiting groove, the shell is provided with a groove in a penetrating manner, the mounting grooves, the grooves and the rotating grooves are all arranged in the horizontal direction, the limiting grooves are arranged in the vertical direction, the top of the inner seat in the vertical direction is provided with an inserting port, the mounting grooves are internally provided with limiting blocks and two clamping grooves, the limiting blocks are positioned below the two clamping grooves, the wrench flat plate and the manual pulling part are positioned in the mounting grooves, the manual pulling part is positioned at the inner side and is adjacent to the lower side of the limiting blocks, one cover opening rotating shaft is positioned in one rotating groove, the reset elastic piece adopts a torsion spring, the torsion spring is sleeved outside the connecting column, the first end of the torsion spring is connected with the positioning groove, and the second end of the torsion spring is connected with a positioning block of the inner seat;
When the outer shell is sleeved outside the inner seat, the slot is positioned at the outer side of the mounting groove and is communicated with the mounting groove, the wrench flat plate is positioned at the slot, the outer shell cover is closed at the outer side of the rotating groove, then the limit clamping block is installed into the limit groove from the insertion port, the guide inclined surface at the end part of the clamping column is abutted with the cover rotating shaft and drives the cover rotating shaft to move outwards, the cover rotating shaft is in clearance fit between the outer shell and the clamping column as the clamping column is inserted into the inner side of the rotating groove, the outer surface of the wrench flat plate is positioned on the same plane with the outer surface of the outer shell, and the clamping block is clamped with the clamping groove through the clamping buckle, so that the positions of the cover wrench and the limit clamping block are stabilized;
The cover opening rotating shaft can rotate in the rotating groove, the lock catch piece is provided with a manual driving part, the manual pulling part can be adjacent to the manual driving part and drive the manual driving part to move, the movement of the manual driving part drives the lock hook to move, and the automatic driving part and the manual driving part are both positioned on the same side of the lock catch piece.
2. The ticket printer of claim 1, wherein:
The cover opening driving assembly further comprises a worm wheel and a worm, the worm wheel is coaxially connected with the cam and synchronously rotates, and the worm is connected between the cover opening driving motor and the worm wheel.
3. The ticket printer of claim 2, wherein:
The cover opening driving assembly further comprises a mounting bracket, the worm wheel and the cam are rotatably arranged on the mounting bracket, the cover opening driving motor is fixedly arranged on the mounting bracket, and the mounting bracket is fixedly connected with the base.
4. A ticket printer as claimed in claim 3, wherein:
The installation support is provided with the rotation groove in the inboard, the rotation groove runs through and is provided with the installation through-hole, the cam the worm wheel with the worm is all located rotate the inslot, uncap driving motor is located rotate outside the groove, uncap driving motor's drive shaft passes the installation through-hole with the worm is connected.
5. The ticket printer of claim 4, wherein:
The cover opening driving assembly further comprises a trigger fixedly installed on the installing support, the cam is located on the inner side of the worm wheel, a convex column is arranged on the end face of the worm wheel, which is located on the periphery of the rotation axis of the worm wheel, and the convex column is adjacent to the triggering end of the trigger.
6. The ticket printer of claim 2, wherein:
The automatic driving part is positioned above the cam, and the worm is positioned below the worm wheel.
7. The ticket printer of claim 2, wherein:
the cam and the worm gear are integrally formed.
8. A ticket printer as claimed in any one of claims 1 to 7, wherein:
the bill printer further comprises a touch control board and a main control circuit board, wherein the touch control board is connected with the main control circuit board, and the main control circuit board is connected with the cover opening driving motor.
CN202210861020.2A 2022-07-21 2022-07-21 Electronic bill printer of uncapping Active CN115122787B (en)

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CN202210861020.2A CN115122787B (en) 2022-07-21 2022-07-21 Electronic bill printer of uncapping

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CN202210861020.2A CN115122787B (en) 2022-07-21 2022-07-21 Electronic bill printer of uncapping

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CN115122787B true CN115122787B (en) 2024-04-16

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107901632A (en) * 2017-12-26 2018-04-13 沃博思(厦门)电子科技有限公司 A kind of self-opening closure of thermal printer cassette
CN207630781U (en) * 2017-12-26 2018-07-20 沃博思(厦门)电子科技有限公司 A kind of self-opening closure of thermal printer cassette
CN211106361U (en) * 2019-10-28 2020-07-28 苏州迈科电器有限公司 Automatic cover opening mechanism of thermosensitive printer core
CN212889490U (en) * 2020-07-14 2021-04-06 厦门鹿匠科技有限公司 Micro printer capable of automatically opening cover
CN215473968U (en) * 2021-08-12 2022-01-11 上海湃达电子科技有限公司 Automatic structure of uncapping of printer
CN215826246U (en) * 2021-05-10 2022-02-15 珠海佳博网络有限公司 Novel thermal printer of structure of uncapping

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107901632A (en) * 2017-12-26 2018-04-13 沃博思(厦门)电子科技有限公司 A kind of self-opening closure of thermal printer cassette
CN207630781U (en) * 2017-12-26 2018-07-20 沃博思(厦门)电子科技有限公司 A kind of self-opening closure of thermal printer cassette
CN211106361U (en) * 2019-10-28 2020-07-28 苏州迈科电器有限公司 Automatic cover opening mechanism of thermosensitive printer core
CN212889490U (en) * 2020-07-14 2021-04-06 厦门鹿匠科技有限公司 Micro printer capable of automatically opening cover
CN215826246U (en) * 2021-05-10 2022-02-15 珠海佳博网络有限公司 Novel thermal printer of structure of uncapping
CN215473968U (en) * 2021-08-12 2022-01-11 上海湃达电子科技有限公司 Automatic structure of uncapping of printer

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