An automatic calibration thermal transfer printer

Abstract

The utility model discloses an automatically calibrated thermal transfer printer, comprising a box, a calibration mechanism and a transfer mechanism; the box: an arc guide plate is arranged inside the box, and a paper sensor is arranged inside the arc guide plate; the calibration mechanism: comprises a cross bar, a connecting plate and a limit plate, the cross bar is arranged at the rear side of the inside of the box, the left and right sides of the outer arc surface of the cross bar are respectively slidably connected with connecting plates, the connecting plates are respectively slidably connected with mounting grooves arranged at the rear sides of the inner sides of the longitudinally adjacent arc guide plates, and the front ends of the connecting plates are all provided with limit plates; the transfer mechanism: is arranged inside the box; wherein: it also includes a single chip microcomputer, and the single chip microcomputer is arranged at the right end of the box. The automatically calibrated thermal transfer printer can automatically calibrate the position of the printing paper, replacing the traditional manual calibration method, thereby improving the printing efficiency and solving the problem of affecting the printing effect due to the offset of the position of the printing paper.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to an automatically calibrated thermal transfer printer. Background Art

[0002] Thermal transfer printers are printers that use thermal transfer technology to print text and images. Compared with traditional printing methods, thermal transfer printers do not need to use inks, solvents and other chemicals, reducing environmental pollution. At the same time, thermal transfer technology is efficient and energy-saving, which helps reduce energy consumption;

[0003] When using a thermal transfer printer, the user usually puts the printing paper into the thermal transfer printer, and then drives the printing paper to move through the conveying device. When the printing paper moves to the lower side of the print head, the print head heats the toner coating on the carbon ribbon and transfers it to the printing paper, thereby realizing the thermal transfer work of the thermal transfer printer with automatic calibration;

[0004] During the operation of existing thermal transfer printers, the position of the printing paper often shifts due to improper operation by the user, which ultimately affects the overall printing effect of the thermal transfer printer. At this time, the user needs to manually open the thermal transfer printer and then calibrate the position of the printing paper to ensure the printing effect of the thermal transfer printer. However, this method is cumbersome to operate and reduces printing efficiency. For this reason, we propose an automatically calibrated thermal transfer printer. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an automatically calibrated thermal transfer printer. Through the coordinated arrangement of the top plate and the trapezoidal block, the position of the limit plate can be adjusted, thereby automatically calibrating the position of the printing paper, replacing the traditional manual calibration method, improving the printing efficiency while also solving the problem of the printing effect being affected by the offset of the position of the printing paper, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatically calibrated thermal transfer printer, comprising a box, a calibration mechanism and a transfer mechanism;

[0007] Box body: An arc-shaped guide plate is arranged inside the box, and a paper sensor is arranged inside the arc-shaped guide plate;

[0008] Calibration mechanism: It includes a cross bar, a connecting plate and a limit plate. The cross bar is arranged at the rear side of the box body. The left and right sides of the outer arc surface of the cross bar are slidably connected with connecting plates. The connecting plates are slidably connected with the mounting grooves arranged at the rear sides of the inner sides of the longitudinally adjacent arc-shaped guide plates. The front ends of the connecting plates are all provided with limit plates.

[0009] Transfer mechanism: it is arranged inside the box;

[0010] Among them: it also includes a single-chip microcomputer, which is arranged at the right end of the box body, the input end of the single-chip microcomputer is electrically connected to the external power supply, the paper sensor is bidirectionally electrically connected to the single-chip microcomputer, and the position of the limit plate can be adjusted by the coordinated setting of the top plate and the trapezoidal block, so as to automatically calibrate the position of the printing paper, replacing the traditional manual calibration method, which improves the printing efficiency and solves the problem of affecting the printing effect due to the offset of the position of the printing paper.

[0011] Furthermore, the calibration mechanism also includes springs, which are respectively arranged between one end of the connecting plate away from the inner center of the box and the inner wall of the box. The springs are all sleeved on the outside of the outer side of the cross bar and can drive the limit plate to move and reset through the connecting plate.

[0012] Furthermore, the transfer mechanism includes a carbon ribbon roll, a print head and a winding roller, the carbon ribbon roll is rotatably connected to the upper side of the interior of the box through a bearing, the print head is arranged on the upper side of the interior of the box, the carbon ribbon roll is located on the rear side of the print head, and the winding roller is rotatably connected to the front side of the right wall of the box through a bearing, and the print head heats the toner coating on the carbon ribbon and transfers it to the printing paper, thereby realizing the thermal transfer work of the automatically calibrated thermal transfer printer.

[0013] Furthermore, the transfer mechanism also includes a driving motor, which is arranged on the upper side of the left wall of the box body, the right end of the driving motor output shaft is fixedly connected to the left end of the winding roller, and the input end of the driving motor is electrically connected to the output end of the single-chip microcomputer, so that the carbon ribbon can be driven to move through the winding roller.

[0014] Furthermore, it also includes a conveying roller and a conveying motor, wherein the conveying roller is rotatably connected to the inside of the arc guide plate through a bearing, the conveying roller is located on the rear side of the paper sensor, the conveying motor is arranged on the rear side of the right end of the box body, the left end of the output shaft of the conveying motor is fixedly connected to the right end of the conveying roller, the input end of the conveying motor is electrically connected to the output end of the single-chip microcomputer, and the printing paper can be driven to move through the conveying roller.

[0015] Furthermore, it also includes a vertical plate, an adjustment plate, a top plate, a trapezoidal block and a screw rod, wherein the vertical plates are all arranged at the rear end of the connecting plate, the trapezoidal blocks are all arranged on the lower side of the front end of the vertical plate, the adjustment plate is slidably connected to the bottom wall of the box body, the top plates are all arranged on the left and right sides of the rear end of the adjustment plate, the inclined surfaces at the rear end of the top plate are respectively in contact with the front ends of the longitudinally adjacent trapezoidal blocks, the screw rod is rotatably connected to the lower side of the front wall of the box body through a bearing, the screw rod is threadedly connected to the threaded hole arranged in the middle part of the rear end of the adjustment plate, and the position of the limit plate can be adjusted through the vertical plate.

[0016] Furthermore, it also includes a servo motor, which is arranged on the lower side of the rear wall of the box body, the front end of the servo motor output shaft is fixedly connected to the rear end of the screw, the input end of the servo motor is electrically connected to the output end of the single-chip microcomputer, and the position of the adjustment plate can be adjusted by the screw.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the automatic calibration thermal transfer printer has the following advantages:

[0018] When the position of the printing paper is offset, the servo motor starts to run through the regulation of the single-chip microcomputer, and the output shaft of the servo motor drives the screw to rotate. During the rotation, the screw drives the adjusting plate to move through the threaded connection, and the adjusting plate drives the top plate to move. When the top plate contacts the trapezoidal block, the trapezoidal block is thrust by the top plate and starts to drive the vertical plate to move toward the end closer to the center of the interior of the box. The vertical plate drives the limit plate to move toward the end closer to the center of the interior of the box through the connecting plate, and the spring extends. Finally, the position of the printing paper can be calibrated through the limit plate. Through the coordinated setting of the top plate and the trapezoidal block, the position of the limit plate can be adjusted, thereby automatically calibrating the position of the printing paper, replacing the traditional manual calibration method, improving the printing efficiency while also solving the problem of affecting the printing effect due to the offset of the position of the printing paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the transfer mechanism of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the calibration mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the right side sectional plan structure of the utility model.

[0023] In the figure: 1 box, 2 single chip microcomputer, 3 arc guide plate, 4 paper sensor, 5 calibration mechanism, 51 cross bar, 52 connecting plate, 53 limit plate, 54 spring, 6 vertical plate, 7 transfer mechanism, 71 carbon ribbon roll, 72 print head, 73 winding roller, 74 drive motor, 8 conveying roller, 9 conveying motor, 10 adjustment plate, 11 top plate, 12 trapezoidal block, 13 screw, 14 servo motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 , this embodiment provides a technical solution: an automatically calibrated thermal transfer printer, comprising a housing 1, a calibration mechanism 5 and a transfer mechanism 7;

[0026] Box body 1: An arc guide plate 3 is arranged inside the box, and a paper sensor 4 is arranged inside the arc guide plate 3. When working, the printing paper is put into the arc guide plate 3 in sequence, and then the printing paper is driven to move by the conveying device. When the printing paper moves to the lower side of the transfer device, the transfer device heats the toner coating on the carbon ribbon and transfers it to the printing paper, thereby realizing the thermal transfer work of the automatically calibrated thermal transfer printer. During the movement of the printing paper, the detection device can monitor the position of the printing paper in real time. When the position of the printing paper is offset, the position of the printing paper can be adjusted in time through the calibration device;

[0027] Calibration mechanism 5: It includes a cross bar 51, a connecting plate 52 and a limit plate 53. The cross bar 51 is arranged at the rear side of the inside of the box body 1. The left and right sides of the outer arc surface of the cross bar 51 are respectively slidably connected with the connecting plates 52. The connecting plates 52 are respectively slidably connected with the mounting grooves arranged at the rear sides of the inner sides of the longitudinally adjacent arc-shaped guide plates 3. The front ends of the connecting plates 52 are all provided with limit plates 53. The calibration mechanism 5 also includes springs 54. The springs 54 are respectively arranged between one end of the connecting plate 52 away from the inner center of the box body 1 and the inner wall of the box body 1. The springs 54 are all sleeved on the outside of the outer side of the cross bar 51. When the printing paper When the position of the printing paper is offset, the driving device starts to operate through the regulation of the control device, and the driving device drives the limiting plate 53 to move toward the end close to the inner center of the box body 1 through the connecting plate 52, and the spring 54 extends. Finally, the position of the printing paper is calibrated through the limiting plate 53. Through the coordinated setting between the driving devices, the position of the limiting plate 53 can be adjusted, so as to calibrate the position of the printing paper, replacing the traditional manual calibration method, improving the printing efficiency and solving the problem of affecting the printing effect due to the offset of the printing paper position.

[0028] The transfer mechanism 7 is arranged inside the box body 1. The transfer mechanism 7 includes a ribbon roll 71, a print head 72 and a reel 73. The ribbon roll 71 is rotatably connected to the upper side of the box body 1 through a bearing. The print head 72 is arranged on the upper side of the box body 1. The ribbon roll 71 is located at the rear side of the print head 72. The reel 73 is rotatably connected to the front side of the right wall of the box body 1 through a bearing. The transfer mechanism 7 also includes a drive motor 74. The drive motor 74 is arranged on the upper side of the left wall of the box body 1. The right end of the output shaft of the drive motor 74 is fixedly connected to the left end of the reel 73. The input end of the drive motor 74 is electrically connected to the output end of the single-chip microcomputer 2. When When the printing paper moves to the lower side of the printing head 72, the driving motor 74 starts to run through the regulation of the control device, and the driving motor 74 drives the winding roller 73 to rotate. Because the carbon ribbon of the carbon ribbon roll 71 is usually in contact with the lower side of the printing head 72 and then wound around the outside of the winding roller 73, the winding roller 73 can drive the carbon ribbon to move during the rotation process. When the carbon ribbon with a toner coating moves to the lower side of the printing head 72, the printing head 72 starts to run through the regulation of the control device, and the printing head 72 heats the toner coating on the carbon ribbon and transfers it to the printing paper, thereby realizing the thermal transfer work of the automatically calibrated thermal transfer printer;

[0029] Among them: it also includes a single-chip microcomputer 2, which is arranged at the right end of the box body 1, the input end of the single-chip microcomputer 2 is electrically connected to the external power supply, and the paper sensor 4 is bidirectionally electrically connected to the single-chip microcomputer 2, which can regulate the electrical components inside the device.

[0030] Wherein: it also includes a conveying roller 8 and a conveying motor 9. The conveying roller 8 is rotatably connected to the inside of the arc guide plate 3 through a bearing. The conveying roller 8 is located on the rear side of the paper sensor 4. The conveying motor 9 is arranged on the rear side of the right end of the box body 1. The left end of the output shaft of the conveying motor 9 is fixedly connected to the right end of the conveying roller 8. The input end of the conveying motor 9 is electrically connected to the output end of the single-chip microcomputer 2. Through the regulation of the single-chip microcomputer 2, the conveying motor 9 starts to run, and the conveying motor 9 drives the conveying roller 8 to rotate. During the rotation, the conveying roller 8 drives the uppermost printing paper to move.

[0031] Wherein: it also includes a vertical plate 6, an adjustment plate 10, a top plate 11, a trapezoidal block 12 and a screw 13, the vertical plates 6 are all arranged at the rear end of the connecting plate 52, the trapezoidal blocks 12 are all arranged on the lower side of the front end of the vertical plates 6, the adjustment plate 10 is slidably connected to the bottom wall of the box body 1, the top plates 11 are all arranged on the left and right sides of the rear end of the adjustment plate 10, the inclined surfaces of the rear end of the top plates 11 are respectively in contact with the front ends of the longitudinally adjacent trapezoidal blocks 12, the screw 13 is rotatably connected to the lower side of the front wall of the box body 1 through the bearing, and the screw 1 3 is threadedly connected with the threaded hole provided in the middle of the rear end of the adjusting plate 10. The screw rod 13 drives the adjusting plate 10 to move through the threaded connection during the rotation process, and the adjusting plate 10 drives the top plate 11 to move. When the top plate 11 contacts the trapezoidal block 12, the trapezoidal block 12 receives the thrust of the top plate 11 and starts to drive the vertical plate 6 to move toward the end close to the center of the box body 1. The vertical plate 6 drives the limiting plate 53 to move toward the end close to the center of the box body 1 through the connecting plate 52.

[0032] Among them: it also includes a servo motor 14, the servo motor 14 is arranged on the lower side of the rear wall of the box body 1, the front end of the output shaft of the servo motor 14 is fixedly connected to the rear end of the screw 13, the input end of the servo motor 14 is electrically connected to the output end of the single-chip microcomputer 2, when the position of the printing paper is offset, the servo motor 14 starts to run through the regulation of the single-chip microcomputer 2, the output shaft of the servo motor 14 drives the screw 13 to rotate, and the screw 13 drives the adjustment plate 10 to move through the threaded connection during the rotation process.

[0033] The working principle of an automatic calibrated thermal transfer printer provided by the utility model is as follows: when working, the printing paper is put into the interior of the arc guide plate 3 in sequence, and then the conveying motor 9 starts to run through the regulation of the single chip microcomputer 2, and the conveying motor 9 drives the conveying roller 8 to rotate. During the rotation, the conveying roller 8 drives the uppermost printing paper to move. When the printing paper moves to the lower side of the print head 72, the driving motor 74 starts to run through the regulation of the single chip microcomputer 2, and the driving motor 74 drives the winding roller 73 to rotate. Because the carbon ribbon of the carbon ribbon roll 71 is usually in contact with the lower side of the print head 72 and then wound around the outside of the winding roller 73, the winding roller 73 can drive the carbon ribbon to move during the rotation. When the carbon ribbon with a toner coating moves to the lower side of the print head 72, the print head 72 starts to run through the regulation of the single chip microcomputer 2, and the print head 72 heats the toner coating on the carbon ribbon and transfers it to the printing paper, thereby realizing the thermal transfer work of the automatic calibrated thermal transfer printer. During the movement, the paper sensor 4 uses the photoelectric effect to generate a photoelectric signal under the interaction between the printing paper and the light, and then converts the light signal reflected by the paper surface into an electrical signal through the paper sensor 4 to detect and identify the paper state. The paper sensor 4 transmits the detected data to the single-chip microcomputer 2 in real time. When the position of the printing paper is offset, the servo motor 14 starts to run through the regulation of the single-chip microcomputer 2, and the output shaft of the servo motor 14 drives the screw 13 to rotate. The screw 13 drives the adjustment plate 10 to move through the threaded connection during the rotation process, and the adjustment plate 10 drives the top plate 11 to move. When the top plate 11 contacts the trapezoidal block 12, the trapezoidal block 12 is pushed by the top plate 11 and starts to drive the vertical plate 6 to move toward the end close to the center of the box body 1. The vertical plate 6 drives the limit plate 53 to move toward the end close to the center of the box body 1 through the connecting plate 52, and the spring 54 extends. Finally, the position of the printing paper can be calibrated through the limit plate 53.

[0034] It is worth noting that the single chip microcomputer 2 disclosed in the above embodiment can be selected from STM8S207S8T6C, the paper sensor 4 can be selected from KGS-19-2L, the print head 72 can be selected from QY6-0082, the drive motor 74 and the servo motor 14 can be selected from ECMA-C20604RS, the conveying motor 9 can be selected from 5IK200A-AF, and the single chip microcomputer 2 controls the paper sensor 4, the print head 72, the drive motor 74, the conveying motor 9 and the servo motor 14 using methods commonly used in the prior art.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatically calibrated thermal transfer printer, characterized in that: It comprises a box body (1), a calibration mechanism (5) and a transfer mechanism (7); Box body (1): an arc-shaped guide plate (3) is arranged inside the box body, and a paper sensor (4) is arranged inside the arc-shaped guide plate (3); The calibration mechanism (5) comprises a cross bar (51), a connecting plate (52) and a limit plate (53), wherein the cross bar (51) is arranged at the rear side of the interior of the box body (1), and the left and right sides of the outer arc surface of the cross bar (51) are respectively slidably connected with the connecting plates (52), and the connecting plates (52) are respectively slidably connected with the mounting grooves arranged at the rear sides of the interiors of the longitudinally adjacent arc-shaped guide plates (3), and the front ends of the connecting plates (52) are each provided with a limit plate (53); Transfer mechanism (7): arranged inside the box (1); The housing (1) further comprises a single-chip microcomputer (2), wherein the single-chip microcomputer (2) is arranged at the right end of the housing (1), an input end of the single-chip microcomputer (2) is electrically connected to an external power supply, and the paper sensor (4) is bidirectionally electrically connected to the single-chip microcomputer (2).

2. The automatic calibration thermal transfer printer according to claim 1, characterized in that: The calibration mechanism (5) further comprises a spring (54), wherein the spring (54) is respectively arranged between an end of the connecting plate (52) away from the inner center of the box body (1) and the inner wall of the box body (1), and the spring (54) is sleeved on the outside of the outer side of the cross bar (51).

3. The automatic calibration thermal transfer printer according to claim 1, characterized in that: The transfer mechanism (7) comprises a carbon ribbon roll (71), a print head (72) and a reel (73); the carbon ribbon roll (71) is rotatably connected to the upper side of the interior of the box (1) via a bearing; the print head (72) is arranged on the upper side of the interior of the box (1); the carbon ribbon roll (71) is located at the rear side of the print head (72); and the reel (73) is rotatably connected to the front side of the right wall of the box (1) via a bearing.

4. The automatic calibration thermal transfer printer according to claim 3, characterized in that: The transfer mechanism (7) further comprises a drive motor (74), wherein the drive motor (74) is arranged on the upper side of the left wall of the box body (1), the right end of the output shaft of the drive motor (74) is fixedly connected to the left end of the winding roller (73), and the input end of the drive motor (74) is electrically connected to the output end of the single chip computer (2).

5. The automatic calibration thermal transfer printer according to claim 1, characterized in that: The invention also comprises a conveying roller (8) and a conveying motor (9), wherein the conveying roller (8) is rotatably connected to the inside of the arc-shaped guide plate (3) via a bearing, the conveying roller (8) is located at the rear side of the paper sensor (4), the conveying motor (9) is arranged at the rear side of the right end of the box body (1), the left end of the output shaft of the conveying motor (9) is fixedly connected to the right end of the conveying roller (8), and the input end of the conveying motor (9) is electrically connected to the output end of the single-chip computer (2).

6. The automatic calibration thermal transfer printer according to claim 1, characterized in that: The box body (1) further comprises a vertical plate (6), an adjusting plate (10), a top plate (11), a trapezoidal block (12) and a screw rod (13), wherein the vertical plates (6) are arranged at the rear end of the connecting plate (52), the trapezoidal blocks (12) are arranged at the lower side of the front end of the vertical plates (6), the adjusting plates (10) are slidably connected to the bottom wall of the box body (1), the top plates (11) are arranged at the left and right sides of the rear end of the adjusting plate (10), the inclined surfaces of the rear end of the top plates (11) are respectively in contact with the front ends of the trapezoidal blocks (12) adjacent in the longitudinal direction, the screw rod (13) is rotatably connected to the lower side of the front wall of the box body (1) through a bearing, and the screw rod (13) is threadedly connected to a threaded hole arranged in the middle of the rear end of the adjusting plate (10).

7. The automatic calibration thermal transfer printer according to claim 6, characterized in that: It also includes a servo motor (14), the servo motor (14) being arranged on the lower side of the rear wall of the box body (1), the front end of the output shaft of the servo motor (14) being fixedly connected to the rear end of the screw rod (13), and the input end of the servo motor (14) being electrically connected to the output end of the single chip computer (2).

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