A new type of carbon ribbon thermal printer

Abstract

The application discloses a novel carbon tape heat-sensitive printer, which comprises a printing base, a printing component installed on the upper end of the printing base and provided with a carbon tape bin; the printing component comprises a structural frame, a power carbon tape shaft installed on the structural frame, a rewinding carbon tape shaft installed on the side of the power carbon tape shaft, a driving assembly used for driving the power carbon tape shaft to rotate, a power shaft hand wheel sleeved on the power carbon tape shaft, a rewinding shaft hand wheel sleeved on the rewinding carbon tape shaft, a protection box used for installing the driving assembly, a structural upper cover installed on the upper end of the structural frame and used for shielding the carbon tape bin, a printing head installed on the lower end of the structural frame and a printing head cover plate used for fixing the printing head. The carbon tape heat-sensitive printer adopting the scheme can overcome the problem that the printing can only be realized on non-heat-sensitive paper, can implement printing on common paper, brings economic advantages for enterprise production and operation, and is convenient to disassemble, install and maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printer, in particular to a novel carbon ribbon thermal printer. BACKGROUND

[0002] With the improvement and innovation of industrial technology, the existing printer, such as Sinopec 2401, including motor, electrical control box, frame, print head, ribbon, etc., is mainly used for printing files and cannot print characters and patterns on ticket paper or unless thermal paper.

[0003] At present, the main way of printing on non-thermal paper is to use a sealing machine to press the date of manufacture on the sealing part, or to use an ink printing machine to print ticket information on the ticket paper material. The disadvantage of using a sealing machine is that the printed characters are not clear and obvious, and the use of an ink printing machine is more expensive. Moreover, the use of thermal paper does not meet the current business needs of enterprises, and thermal paper is generally more expensive. For places with high demand for tickets, such as tourist attractions, long-term use of thermal paper also brings economic waste.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of enhancing the understanding of the general background of the application and should not be taken as an acknowledgment or any form of suggestion that this information forms prior art that is already known to those skilled in the art.

[0005] The present applicant proposes a novel carbon ribbon thermal printer to solve the above problems. SUMMARY

[0006] In order to meet the above requirements, the purpose of the present application is to provide a novel carbon ribbon thermal printer.

[0007] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0008] A novel carbon ribbon thermal printer, comprising a printing base, a printing component installed on the upper end of the printing base and provided with a carbon ribbon cartridge;

[0009] The printing component comprises a structural frame, a power carbon ribbon shaft installed on the structural frame, a rewinding carbon ribbon shaft installed on the side of the power carbon ribbon shaft, a driving assembly for driving the power carbon ribbon shaft to rotate, a power shaft hand wheel sleeved on the power carbon ribbon shaft, a rewinding shaft hand wheel sleeved on the rewinding carbon ribbon shaft, a protection box for installing the driving assembly, a structural upper cover installed on the upper end of the structural frame and used for shielding the carbon ribbon cartridge, a print head installed on the lower end of the structural frame, and a print head cover plate for fixing the print head;

[0010] The printing base comprises a rear inner cover, a slidable paper slot installed on the rear inner cover, a sensor support installed on the slidable paper slot, and a positioning sensor installed on the sensor support and used for detecting the position of the printing paper;

[0011] The power carbon tape shaft is installed with a carbon tape, which is in contact with the lower end of a print head and is rewound by a rewinding carbon tape shaft, the print head is used to drive the carbon tape to print the printing paper installed in the slidable paper slot by using the thermal effect;

[0012] The power carbon tape shaft and the rewinding carbon tape shaft are detachably connected with the structural frame, and the structural frame is provided with a detachable assembly for fixing the power carbon tape shaft and the rewinding carbon tape shaft and installed in the protection box.

[0013] In a possible implementation, the structural frame is provided with a first mounting groove and a second mounting groove for mounting the power carbon tape shaft and the rewinding carbon tape shaft, and the detachable assembly is installed outside the first mounting groove and the second mounting groove.

[0014] The detachable assembly comprises a clasp structure provided with a hook-shaped part at both ends for clamping the power carbon tape shaft and the rewinding carbon tape shaft, and a baffle structure installed outside the clasp structure for fixing the clasp structure.

[0015] The hook-shaped part is rotatably connected or elastically connected with the clasp structure.

[0016] In a possible implementation, the driving assembly comprises a driving motor installed on the structural frame, and a turbine sleeved on the power carbon tape shaft and in transmission connection with the output shaft of the driving motor.

[0017] The output shaft of the driving motor is provided with an external thread for meshing connection with the turbine, and the protection box is installed with a plurality of switches for controlling the driving motor and an indicator light for showing the working condition.

[0018] In a possible implementation, the rewinding shaft hand wheel is further connected with a limit clutch piece that rotates synchronously with the rewinding shaft hand wheel, the limit clutch piece is wound with a carbon tape tension spring, one end of the carbon tape tension spring is fixed to the structural frame, and the other end is fixed to the limit clutch piece, and the carbon tape tension spring is used for pre-tightening the carbon tape when the carbon tape starts to work.

[0019] In a possible implementation, the printing base is connected with a paper outlet nozzle, and the paper outlet nozzle is in communication with the slidable paper slot.

[0020] In a possible implementation, the printing base is provided with a rubber roller between the paper outlet nozzle and the slidable paper slot for driving the printing paper to move.

[0021] In a possible implementation, a fixed blade is installed between the front inner cover and the paper outlet nozzle of the printing base, and a movable blade is hinged to the fixed blade and used to cut the printing paper; the movable blade is provided with a rotating sliding groove, the rotating sliding groove is installed with a protrusion, the protrusion is connected with a cam installed inside the printing base, and a motor is also installed inside the printing base, the motor is in transmission connection with the cam, and the motor is used to drive the cam to rotate so as to drive the movable blade to rotate.

[0022] In a possible implementation, a paper outlet sensor for detecting whether the printing paper exists is arranged at a position between the printing base and the paper outlet nozzle, and the number of the paper outlet sensor is at least two, which are respectively arranged at positions above and below the paper outlet nozzle.

[0023] In a possible implementation, a hinge shaft for connecting the printing base and the printing component is arranged between the printing base and the printing component, the printing component is provided with a fixing pin, and the printing base is provided with a lock head which is detachably connected with the fixing pin through a button.

[0024] In a possible implementation, the structural frame is provided with a plurality of sensors for detecting whether the power shaft hand wheel and the rewinding shaft hand wheel rotate, the structural frame is provided with a plurality of through holes for installing the sensors, and the power shaft hand wheel and the rewinding shaft hand wheel are provided with a plurality of contrast grooves opposite to the positions of the through holes at one end close to the structural frame.

[0025] Compared with the prior art, the carbon ribbon thermal printer has the advantages that the carbon ribbon thermal printer can overcome the problem that the non-thermal paper can only be printed, can print on ordinary paper, brings economic advantages to enterprise production and operation, and is convenient to disassemble, install and maintain due to the detachable power carbon ribbon shaft, the rewinding carbon ribbon shaft and the detachable assembly. In addition, the sensors arranged at the paper outlet nozzle can effectively detect whether the printed tickets exist at the paper outlet, the sensors arranged at the slidable paper groove and the sensors arranged at the side of the structural frame can also detect whether the paper is moving and whether the power carbon ribbon shaft and the rewinding carbon ribbon shaft rotate, so as to judge whether the printer works normally.

[0026] The application will be further described below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of a specific embodiment of the carbon ribbon thermal printer of the application;

[0028] Figure 2 is Figure 1 a structural schematic view of a hidden paper outlet nozzle of the printer;

[0029] Figure 3 isFigure 1 Structure diagram of another angle

[0030] Figure 4 Figure 1 Structure diagram of slidable paper slot of printer

[0031] Figure 5 Figure 1 Structure diagram of hidden paper outlet of printer (including sensor)

[0032] Figure 6 Figure 1 Structure diagram of inside of printing part of printer

[0033] Figure 7 Figure 1 Structure diagram of printing part of printer

[0034] Figure 8 Figure 1 Structure diagram of power carbon tape shaft of printer

[0035] Figure 9 Figure 1 Structure diagram of rewinding carbon tape shaft of printer

[0036] Figure 10 Figure 1 Structure diagram of printing part of printer

[0037] Reference signs

[0038] 1 printing base 2 carbon tape storage

[0039] 3 hinge rotating shaft 4 fixing pin

[0040] 5 rubber roller 6 printing head

[0041] 7 lock head 8 rear inner cover

[0042] 9 paper outlet 10 slidable paper slot

[0043] 11 sensor support 12 positioning sensor

[0044] 13 paper outlet sensor 14 power carbon tape shaft

[0045] 15 rewinding carbon tape shaft 16 driving motor

[0046] 17 worm 18 worm wheel

[0047] 19 power shaft hand wheel 20 rewinding shaft hand wheel

[0048] 21 switch 22 indicator light ​​​​​​​

[0049] 23 gasket 24 pressure spring

[0050] 25 fixing screw 26 carbon tape tension spring

[0051] 27 tension spring fixing screw 28 limit clutch piece

[0052] 29 structure upper cover 30 hook structure

[0053] 31 baffle structure 32 print head positioning shaft

[0054] 33 print head cover plate 34 fixed blade

[0055] 35 structure frame 36 protection box

[0056] 37 first mounting groove 38 second mounting groove

[0057] 39 hook portion 40 through hole

[0058] 41 rotary sliding groove 42 protruding portion

[0059] 43 motor 44 front inner cover

[0060] 45 contrast groove DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0063] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a number of the technical features indicated. Thus, the features defined with "first", "second" can include one or more of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0064] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be connected, or detachable, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] In the present application, unless otherwise explicitly specified and limited, the "first" feature is "on" or "under" the "second" feature, which can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the "first" feature "on", "above" and "above" the "second" feature includes the first feature above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The "first" feature "below", "below" and "below" the "second" feature includes the first feature below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0066] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0067] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown in the structure, the present application provides a new type of carbon ribbon thermal printer, which comprises a printing base 1, a printing component installed on the upper end of the printing base 1 and provided with a carbon ribbon cartridge 2;

[0068] The printing component comprises a structural frame 35, a power carbon ribbon shaft 14 installed on the structural frame 35, a rewinding carbon ribbon shaft 15 installed on the side of the power carbon ribbon shaft 14, a driving assembly for driving the power carbon ribbon shaft 14 to rotate, a power shaft hand wheel 19 sleeved on the power carbon ribbon shaft 14, a rewinding shaft hand wheel 20 sleeved on the rewinding carbon ribbon shaft 15, a protection box 36 for installing the driving assembly, Case 36 a structural upper cover 29 installed on the upper end of the structural frame 35 and used for shielding the carbon ribbon cartridge 2, a printing head 6 installed on the lower end of the structural frame 35, and a printing head cover plate 33 for fixing the printing head 6;

[0069] The printing base 1 comprises a rear inner cover 8, a slidable paper slot 10 installed on the rear inner cover 8, a sensor support 11 installed on the slidable paper slot 10, and a positioning sensor 12 installed on the sensor support 11 and used for detecting the position of the printing paper.

[0070] The positioning sensor 12 can be, but is not limited to, an optical sensor.

[0071] The power carbon ribbon shaft 14 is installed with a carbon ribbon, the carbon ribbon is in contact with the lower end of the printing head 6 and is rewound by the rewinding carbon ribbon shaft 15, and the printing head 6 is used for printing the printing paper installed on the slidable paper slot 10 by driving the carbon ribbon by the thermal effect.

[0072] The power carbon ribbon shaft 14 and the rewinding carbon ribbon shaft 15 are detachably connected with the structural frame 35, and the structural frame 35 is provided with a detachable assembly for fixing the power carbon ribbon shaft 14 and the rewinding carbon ribbon shaft 15 and installed in the protection box 36.

[0073] As a preferred embodiment, as shown in the structure, Figure 10 The structural frame 35 is provided with a first mounting groove 37 and a second mounting groove 38 for installing the power carbon ribbon shaft 14 and the rewinding carbon ribbon shaft 15, and the detachable assembly is installed outside the first mounting groove 37 and the second mounting groove 38;

[0074] Specifically, as shown in the figure, the detachable assembly comprises a clasp structure 30 provided with a hook-shaped part 39 at both ends for clamping the power carbon ribbon shaft 14 and the rewinding carbon ribbon shaft 15, and a baffle structure 31 installed outside the clasp structure 30 for fixing the clasp structure 30;

[0075] The hook-shaped part 39 is rotatably connected or elastically connected with the clasp structure 30.

[0076] The hook structure 30 and the structural frame 35 are fixed together by fastening pins. The hook structure 30 is provided with mounting holes for installing fastening pins, and the structural frame 35 is fixed with fastening pins.

[0077] In other embodiments, the fastening pin may be replaced with other fasteners.

[0078] As an optional implementation method, such as Figure 7 As shown, the drive assembly includes a drive motor 16 mounted on the structural frame 35, and a turbine 18 that is drively connected to the output shaft of the drive motor 16 and sleeved on the power carbon belt shaft 14.

[0079] Optionally, the output shaft of the drive motor 16 is provided with an external thread for engaging with the turbine 18;

[0080] Optionally, the drive motor 16 is connected to a worm gear 17, which is used to transmit power to the turbine 18.

[0081] like Figure 7 In the embodiment shown, the protective box 36 is equipped with several switches 21 for controlling the drive motor 16 and indicator lights 22 for displaying the working status.

[0082] Specifically, designers can set the indication effect of indicator light 22 according to actual needs, such as power on, printing start, etc.

[0083] As an optional implementation method, such as Figure 8 As shown, the power carbon belt shaft 14 and the power shaft handwheel 19 are fixedly connected through the slot of the power shaft handwheel 19, thereby achieving the effect of synchronous rotation. The end of the power shaft handwheel 19 far from the power carbon belt shaft 14 is provided with a cylindrical connecting part. The connecting part is sequentially fitted with a washer 23, a turbine 18, a washer 23, a pressure spring 24, a washer 23, and a fixing screw 25. The pressure spring 24 is used to obtain a force towards the structural frame 35 when the power shaft handwheel 19 is installed, so as to keep it tightly attached to the structural frame 35 and achieve a better transmission effect.

[0084] In one possible implementation, such as Figure 9 In the embodiment shown, the rewind handwheel 20 is also connected to a limiting clutch plate 28 that rotates synchronously with it. The limiting clutch plate 28 is wound with a carbon belt tension spring 26. One end of the carbon belt tension spring 26 is fixed to the structural frame 35, and the other end is fixed to the limiting clutch plate 28. The carbon belt tension spring 26 is used to pre-tighten the carbon belt when it starts working.

[0085] When the printer is started, the ribbon tension spring 26 will briefly stop the rewind ribbon shaft 15 from rotating due to its own elasticity. At this time, the ribbon is tightened due to the rotation of the ribbon shaft 14, thus avoiding poor printing effect.

[0086] As a preferred implementation, when the printer needs to eject paper to reprint, the user can manually turn the rewind handwheel 20 to pull the ribbon back.

[0087] Specifically, one end of the rewind handwheel 20 is provided with a columnar connecting part, which is connected in sequence to a washer 23, a limit clutch plate 28 with a carbon strip tension spring 26 wound around it, a washer 23, a pressure spring 24, a washer 23, and a fixing screw 25.

[0088] The limiting clutch plate 28 is fixed to the carbon belt tension spring 26 by the tension spring fixing screw 27.

[0089] In one possible implementation, such as Figure 3 As shown, the printing base 1 is connected to a paper outlet 9, which is connected to a sliding paper tray 10.

[0090] Specifically, the paper output nozzle 9 is used to move the paper out in a predetermined direction for printing.

[0091] As a preferred implementation method, such as Figure 1 As shown, the printing base 1 is provided with a rubber roller 5 for moving the printing paper between the paper outlet 9 and the sliding paper tray 10.

[0092] The rubber roller 5 is driven to rotate by a motor located inside the printing base 1 to move and transmit the printing paper out of the paper outlet 9.

[0093] As a preferred implementation method, such as Figure 2 As shown, a fixed blade 34 is installed between the front inner cover 44 of the printing base 1 and the paper outlet 9, and a movable blade 35 is hinged to the fixed blade 34 and used for cutting the printing paper. The movable blade 35 is provided with a rotating sliding groove 41, and a protrusion 42 is installed in the rotating sliding groove 41. The protrusion 42 is connected to a cam installed inside the printing base 1. A motor 43 is also installed inside the printing base 1. The motor 43 is connected to the cam for transmission. The motor 43 is used to drive the cam to rotate, thereby driving the movable blade 35 to rotate, so as to achieve the function of cutting the printing paper and printing tickets.

[0094] Specifically, users can design the cam structure according to their needs, which will not be elaborated here.

[0095] The fixed blade 34 acts as a cutting platform. When the moving blade 35 is driven to rotate, the fixed blade 34 is used as the force point to cut the printing paper.

[0096] In one possible implementation, as shown in Figure 3 and Figure 5 , a paper outlet sensor 13 is provided between the printing base 1 and the paper outlet 9 to detect whether there is printing paper, and the number of the paper outlet sensor 13 is at least two, which are respectively distributed above the paper outlet 9 and below the paper outlet 9.

[0097] In one possible implementation, the paper outlet sensor 13 can be, but is not limited to, a photoelectric sensor. When two photoelectric sensors receive signals from each other, it is considered that there is no printing paper in the paper outlet. The next ticket printing can be implemented according to the user's setting program.

[0098] In one possible implementation, as shown in Figure 1 , a hinge shaft 3 is provided between the printing base 1 and the printing component to connect the two.

[0099] Specifically, the user can use the hinge shaft 3 to separate the printing component and the printing base, so as to facilitate installation and maintenance.

[0100] In one possible implementation, the printing component is provided with a fixing pin 4, and the printing base 1 is provided with a lock head 7 which is detachably connected with the fixing pin 4 through a button.

[0101] In one possible implementation, the user can press the button of the lock head 7 to unlock the printing component and the printing base 1, so that the printing component and the printing base 1 can be rotated.

[0102] In one possible implementation, as shown in Figure 6 , the structural frame 35 is provided with a plurality of sensors (not shown in the figure, which can be, but are not limited to, photoelectric sensors) for detecting whether the power shaft hand wheel 19 and the rewinding shaft hand wheel 20 are rotated, and the structural frame 35 is provided with a plurality of through holes 40 for installing the sensors. The power shaft hand wheel 19 and the rewinding shaft hand wheel 20 are provided with a plurality of contrast grooves 45 (which can be seen in detail in Figure 8 ) opposite to the positions of the through holes 40 at one end of the structural frame 35.

[0103] In the embodiment shown in Figure 10 , the printing head 6 is fixed to the lower end of the printing base 1 through a printing head positioning shaft 32.

[0104] In the embodiment shown in Figure 10 , the printing head cover plate 33 is connected with the printing base 1 through a printing head pressure adjusting screw 34, wherein the user can change the position of the printing head 6 and disassemble and maintain the printing head 6 through the printing head pressure adjusting screw 34.

[0105] In summary, the carbon ribbon thermal printer using the present scheme overcomes the problem that non-thermal paper can realize printing, and can implement printing on ordinary paper, bringing economic advantages to enterprise production and operation. At the same time, since the present scheme has a detachable power carbon ribbon shaft, a rewinding carbon ribbon shaft and a detachable assembly, it is convenient to disassemble, install and maintain. In addition, the sensor arranged at the paper outlet can effectively detect whether the paper outlet exists a printed ticket, and the sensor arranged at the slidable paper slot and the sensor arranged at the side of the structural frame can also realize detection of whether the paper is moving and whether the power carbon ribbon shaft and the rewinding carbon ribbon shaft are rotating, so as to judge whether the printer is working normally.

[0106] For those skilled in the art, various corresponding changes and modifications can be made to the above-described technical solutions and concepts, and all these changes and modifications should belong to the protection scope of the present application claims.

Claims

1. A new type of carbon ribbon thermal printer characterized in that, The printing base comprises a printing base, a printing component mounted on the upper end of the printing base and provided with a ribbon cartridge; The printing component comprises a structural frame, a power ribbon shaft mounted on the structural frame, a rewinding ribbon shaft mounted on the side of the power ribbon shaft, a driving assembly for driving the power ribbon shaft to rotate, a power shaft hand wheel sleeved on the power ribbon shaft, a rewinding shaft hand wheel sleeved on the rewinding ribbon shaft, a protection box for mounting the driving assembly, a structural upper cover mounted on the upper end of the structural frame and used for shielding the ribbon cartridge, a print head mounted on the lower end of the structural frame, and a print head cover plate for fixing the print head; The printing base comprises a rear inner cover, a slidable paper slot mounted on the rear inner cover, a sensor support mounted on the slidable paper slot, and a positioning sensor mounted on the sensor support and used for detecting the position of the printing paper; The power ribbon shaft is mounted with a ribbon, which is in contact with the lower end of the print head and is rewound by the rewinding ribbon shaft, and the print head is used for printing the printing paper mounted on the slidable paper slot by using the thermal effect to drive the ribbon; The power ribbon shaft and the rewinding ribbon shaft are detachably connected with the structural frame, and the structural frame is provided with a detachable assembly for fixing the power ribbon shaft and the rewinding ribbon shaft and mounted in the protection box; The structural frame is provided with a first mounting groove and a second mounting groove for mounting the power ribbon shaft and the rewinding ribbon shaft, and the detachable assembly is mounted outside the first mounting groove and the second mounting groove; The detachable assembly comprises a clasp structure provided with hook-shaped parts at both ends for clamping the power ribbon shaft and the rewinding ribbon shaft, and a baffle structure mounted outside the clasp structure for fixing the clasp structure; The hook-shaped parts are rotatably or elastically connected with the clasp structure; The printing base is connected with a paper outlet nozzle, and the paper outlet nozzle is communicated with the slidable paper slot; The printing base is provided with a rubber roller between the paper outlet nozzle and the slidable paper slot for moving the printing paper; A fixed blade is mounted between the front inner cover of the printing base and the paper outlet nozzle, and a movable blade is hingedly connected with the fixed blade and used for cutting the printing paper; the movable blade is provided with a rotating sliding groove, the rotating sliding groove is mounted with a protruding part, the protruding part is connected with a cam mounted in the interior of the printing base, and a motor is also mounted in the interior of the printing base, the motor is in transmission connection with the cam, and the motor is used for driving the cam to rotate so as to drive the movable blade to rotate; The driving assembly comprises a driving motor mounted on the structural frame, and a turbine sleeved on the power ribbon shaft and in transmission connection with the output shaft of the driving motor; The output shaft of the driving motor is provided with an external thread for meshing connection with the turbine, and the protection box is mounted with a plurality of switches for controlling the driving motor and an indicator light for showing the working condition. The hand wheel of the rewinding shaft is also connected with a limiting clutch piece which rotates synchronously, the limiting clutch piece is wound with a carbon tape tension spring, one end of the carbon tape tension spring is fixed to the structural frame and the other end is fixed to the limiting clutch piece, the carbon tape tension spring is used for pre-tightening the carbon tape when the carbon tape starts to work; the carbon tape tension spring can temporarily prevent the rotation of the rewinding carbon tape shaft due to its own elasticity when the printer starts, at this time, the carbon tape is tightened due to the rotation of the carbon tape shaft, which avoids the phenomenon of poor printing effect, when the printer needs to return the paper for reprinting, the user can pull back the carbon tape by manually rotating the hand wheel of the rewinding shaft; The position between the printing base and the paper outlet nozzle is provided with a paper outlet sensor for detecting whether there is printing paper, the number of the paper outlet sensor is at least 2, which is respectively distributed above the paper outlet nozzle and below the paper outlet nozzle; The printing base and the printing component are provided with a hinge shaft for connecting the two, the printing component is provided with a fixing pin, and the printing base is provided with a lock head which is detachably connected with the fixing pin through a button; The structural frame is provided with a plurality of sensors for detecting whether the power shaft hand wheel and the rewinding shaft hand wheel rotate, the structural frame is provided with a plurality of through holes for installing the sensors, and the end of the power shaft hand wheel and the rewinding shaft hand wheel close to the structural frame is provided with a plurality of comparison grooves which are opposite to the positions of the through holes.

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