Device for adjusting tightness of thermal transfer ribbon in thermal transfer printer

Abstract

The utility model belongs to the technical field of thermal transfer printer internal thermal transfer ribbon tightness adjusting, and discloses a thermal transfer printer internal thermal transfer ribbon tightness adjusting device which comprises a fixed circular plate, a thermal transfer ribbon roller is fixedly arranged on the right side of the fixed circular plate, and a rotating disc is rotationally arranged in the center of the left side of the fixed circular plate. The top end of the rotating disc further comprises an adjusting assembly. The adjusting assembly comprises a telescopic shaft fixedly arranged at the top end of the rotating disc, a positioning screw penetrates through the interior of the telescopic shaft, a nut is spirally arranged on the outer side of the positioning screw, the nut abuts against the telescopic shaft, and a U-shaped frame is rotationally arranged at one end of the positioning screw. The rotating disc rotates to control the telescopic shaft and the transverse shaft to tightly press the surface of the unfolded thermal transfer ribbon, so that the tensioning effect of the thermal transfer ribbon in the thermal transfer printer is kept, workers do not need to open the outer side of the thermal transfer printer for manual adjustment, and operation is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of adjusting the tension of a carbon belt inside a thermal transfer printer, in particular to a device for adjusting the tension of a carbon belt inside a thermal transfer printer. Background Art

[0002] Thermal transfer ribbon requires a special ribbon to print barcodes, text and other information on labels. This special ribbon is a carbon ribbon, which is generally composed of three parts: a base film, a heat-resistant coating, and an ink coating. The internal tightness needs to be manually adjusted by the staff, otherwise the ribbon will be loosely wound and affect printing.

[0003] At the same time, the application number is 202020717207.1, a device for adjusting the tension of a carbon ribbon of a thermal transfer printer, "including a thermal film fixing bracket, a rubber roller is installed below the thermal film fixing bracket, an adjusting balance shaft is provided on the thermal film fixing bracket, one end of the adjusting balance shaft is a limiting end, the other end of the adjusting balance shaft is an adjusting end, one end of the thermal film fixing bracket has a limiting hole, the other end of the thermal film fixing bracket has a slot hole, an adjusting component is provided on the adjusting end of the adjusting balance shaft, and the adjusting component can make the adjusting end of the adjusting balance shaft move forward and backward in the slot hole";

[0004] During use, when adjusting the tension of the existing thermal transfer printer's carbon ribbon, after the carbon ribbon is placed, the internal carbon ribbon winding will become loose during use, causing the carbon ribbon to be not tight enough inside the thermal transfer printer. When printing, the printed text will not be clear enough. At the same time, the staff needs to reopen the printer casing for manual adjustment, which is cumbersome and cannot maintain the compression effect during the printing operation.

[0005] Therefore, in view of the above problem, a device for adjusting the tension of a carbon ribbon inside a thermal transfer printer is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a device for adjusting the tension of a carbon ribbon inside a thermal transfer printer, which has the advantages of continuously pressing the carbon ribbon and keeping the carbon ribbon tensioned inside the thermal transfer printer.

[0007] To achieve the above object, the utility model provides the following technical solution: a device for adjusting the tension of a carbon ribbon inside a thermal transfer printer, comprising a fixed circular plate, a carbon ribbon roller is fixedly arranged on the right side of the fixed circular plate, a rotating disk is rotatably arranged at the center position of the left side of the fixed circular plate, and the top of the rotating disk also includes an adjusting component;

[0008] The adjustment component includes a telescopic shaft fixedly arranged at the top of the rotating disk, a positioning screw passing through the interior of the telescopic shaft, a nut spirally arranged on the outer side of the positioning screw, and the nut is tightly pressed against the telescopic shaft, a U-shaped frame is rotatably arranged at one end of the positioning screw, and a horizontal axis is fixedly arranged on the right side of the U-shaped frame.

[0009] Preferably, a fastening bolt passes through the interior of the rotating disk, and the fastening bolt and the fixing circular plate are spirally arranged.

[0010] Preferably, the outer edge of the fixed circular plate is fixedly arranged on a limiting frame, and a curved groove is formed on one side of the limiting frame.

[0011] Preferably, a positioning plate is fixedly provided at the front end of the rotating disk, a first spring is fixedly provided at the bottom end of the positioning plate, and the other end of the first spring is fixedly provided to the limiting frame.

[0012] Preferably, a mounting bracket is spirally arranged at the other end of the horizontal axis, a sliding shaft is slidably arranged inside the mounting bracket, and a pressure rod is rotatably arranged outside the sliding shaft.

[0013] Preferably, a vertical shaft passes through the interior of the sliding shaft, and the vertical shaft is fixed to the mounting frame, a second spring is sleeved on the outer side of the vertical shaft, and the second spring is located between the sliding shaft and the mounting frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model cooperates with the telescopic shaft and the horizontal shaft structure in the adjustment component. The rotating disk rotates to control the telescopic shaft and the horizontal shaft to press the surface of the unfolded carbon ribbon, thereby maintaining the tension effect of the carbon ribbon inside the thermal transfer printer. The staff does not need to open the outside of the thermal transfer printer for manual adjustment, and the operation is more convenient.

[0016] 2. The utility model cooperates with the pressure rod and the mounting frame structure, and the pressure rod and the horizontal axis form a double-layer limiting structure, so that the carbon ribbon can be set in the gap. The pressure rod is controlled to press the carbon ribbon through the push of the second spring, and the carbon ribbon is guided more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the carbon ribbon roller of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the adjustment component of the utility model;

[0020] Figure 4It is a schematic diagram of the installation structure of the installation frame of the utility model.

[0021] In the figure: 1. Fixed circular plate; 2. Carbon ribbon roller; 3. Limiting frame; 4. Rotating plate; 5. Fastening bolts;

[0022] 6. Adjustment assembly; 61. Telescopic shaft; 62. Positioning screw; 63. Nut; 64. U-shaped frame; 65. Horizontal shaft; 66. First spring; 67. Positioning plate;

[0023] 7. Mounting frame; 8. Sliding shaft; 9. Pressure rod; 10. Vertical shaft; 11. Second spring. 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] like Figures 1 to 4 As shown, the utility model provides a device for adjusting the tension of a carbon ribbon inside a thermal transfer printer, comprising a fixed circular plate 1, a carbon ribbon roller 2 is fixedly arranged on the right side of the fixed circular plate 1, a rotating disk 4 is rotatably arranged at the center position of the left side of the fixed circular plate 1, the rotating disk 4 is connected to an adjusting component 6 for rotation, and an adjusting component 6 is also included at the top of the rotating disk 4;

[0026] The adjustment component 6 includes a telescopic shaft 61 fixedly arranged at the top of the rotating disk 4, a positioning screw 62 passes through the interior of the telescopic shaft 61, a nut 63 is spirally arranged on the outer side of the positioning screw 62, and the nut 63 is tightly pressed against the telescopic shaft 61, a U-shaped frame 64 is rotatably arranged at one end of the positioning screw 62, a horizontal axis 65 is fixedly arranged on the right side of the U-shaped frame 64, the U-shaped frame 64 is installed to the interior of the telescopic shaft 61 through the positioning screw 62, and the nut 63 is used for limiting and positioning the U-shaped frame 64 and the horizontal axis 65.

[0027] Specifically, a fastening bolt 5 penetrates the interior of the rotating disk 4 , and the fastening bolt 5 is spirally arranged with the fixed circular plate 1 , and the fastening bolt 5 is used to position the rotating disk 4 .

[0028] Furthermore, the outer edge of the fixed circular plate 1 is fixedly disposed on the limiting frame 3 , and a curved groove is provided on one side of the limiting frame 3 , and the limiting frame 3 limits the rotation of the rotating disk 4 through the curved groove.

[0029] Furthermore, a positioning plate 67 is fixedly provided at the front end of the rotating disk 4, a first spring 66 is fixedly provided at the bottom end of the positioning plate 67, and the other end of the first spring 66 is fixedly provided to the limit frame 3, and the first spring 66 can pull the rotating disk 4 to rotate through the positioning plate 67.

[0030] It is worth noting that a mounting frame 7 is spirally arranged at the other end of the transverse axis 65 , a sliding shaft 8 is slidably arranged inside the mounting frame 7 , and a pressure rod 9 is rotatably arranged outside the sliding shaft 8 .

[0031] It is worth noting that a vertical shaft 10 runs through the interior of the sliding shaft 8, and the vertical shaft 10 is fixed to the mounting frame 7. A second spring 11 is sleeved on the outer side of the vertical shaft 10, and the second spring 11 is located between the sliding shaft 8 and the mounting frame 7. The second spring 11 pushes the sliding shaft 8 down.

[0032] Among them, the carbon ribbon roller 2 is the existing technology and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0033] Working principle and process:

[0034] The staff puts the carbon ribbon into the outside of the carbon ribbon roller 2, aligns the rotating disk 4 with the through hole of the fixed circular plate 1, inserts the fastening bolt 5 into the through hole of the rotating disk 4 for positioning, moves the horizontal axis 65 in the adjustment component 6 to the bottom of the carbon ribbon, and installs the mounting frame 7 to the other end of the horizontal axis 65. The pressure rod 9 located on the outside of the sliding shaft 8 inside the mounting frame 7 can be pressed on the top of the carbon ribbon, and the carbon ribbon can be limited in the gap by cooperating with the horizontal axis 65. The sliding shaft 8 is pushed down by the second spring 11 on the outside of the vertical axis 10 inside the mounting frame 7, so as to compress the carbon ribbon structure, and cooperate with the first spring 66 to connect the positioning plate 67, pull the rotating disk 4 to control it to rotate inside the limiting frame 3, and position it on the outside of the fixed circular plate 1 through the U-shaped frame 64, so as to control the horizontal axis 65 and the pressure rod 9 to compress the carbon ribbon. The stability of the internal carbon ribbon can be maintained without the staff opening the outer shell of the thermal printer.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for adjusting the tension of a carbon ribbon in a thermal transfer printer, comprising a fixed circular plate (1), characterized in that: A carbon ribbon roller (2) is fixedly arranged on the right side of the fixed circular plate (1), a rotating disk (4) is rotatably arranged at the center position of the left side of the fixed circular plate (1), and the top end of the rotating disk (4) also includes an adjustment component (6); The adjustment assembly (6) comprises a telescopic shaft (61) fixedly arranged at the top end of the rotating disk (4), a positioning screw (62) passing through the interior of the telescopic shaft (61), a nut (63) being spirally arranged on the outer side of the positioning screw (62), and the nut (63) being tightly abutted against the telescopic shaft (61), a U-shaped frame (64) being rotatably arranged at one end of the positioning screw (62), and a transverse shaft (65) being fixedly arranged on the right side of the U-shaped frame (64).

2. The device for adjusting the tension of a carbon ribbon in a thermal transfer printer according to claim 1, characterized in that: A fastening bolt (5) passes through the interior of the rotating disk (4), and the fastening bolt (5) and the fixed circular plate (1) are spirally arranged.

3. The device for adjusting the tension of a carbon ribbon in a thermal transfer printer according to claim 1, characterized in that: The outer edge of the fixed circular plate (1) is fixedly arranged on the limiting frame (3), and a curved groove is provided on one side of the limiting frame (3).

4. The device for adjusting the tension of a carbon ribbon in a thermal transfer printer according to claim 1, characterized in that: A positioning plate (67) is fixedly disposed at the front end of the rotating disk (4), a first spring (66) is fixedly disposed at the bottom end of the positioning plate (67), and the other end of the first spring (66) is fixedly disposed on the limiting frame (3).

5. The device for adjusting the tension of a carbon ribbon in a thermal transfer printer according to claim 1, characterized in that: The other end of the transverse shaft (65) is spirally provided with a mounting frame (7), a sliding shaft (8) is slidably provided inside the mounting frame (7), and a pressure rod (9) is rotatably provided outside the sliding shaft (8).

6. The device for adjusting the tension of a carbon ribbon in a thermal transfer printer according to claim 5, characterized in that: A vertical shaft (10) passes through the interior of the sliding shaft (8), and the vertical shaft (10) and the mounting frame (7) are fixedly arranged. A second spring (11) is sleeved on the outer side of the vertical shaft (10), and the second spring (11) is located between the sliding shaft (8) and the mounting frame (7).

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