Thermal transfer printer thermal transfer ribbon tensioning device

Abstract

The utility model belongs to the technical field of thermal transfer printers, and discloses a thermal transfer printer thermal transfer ribbon tensioning device which comprises a shell, a sliding groove is fixedly formed in one side of the interior of the shell, a push shaft is arranged in the sliding groove in a sliding mode, and a transmission belt is fixedly arranged on the outer side of the push shaft. A transmission disc is fixedly arranged at the other end of the transmission belt, a supporting shaft is fixedly arranged on the inner side of the transmission disc, a thermal transfer ribbon body is slidably arranged on the outer side of the supporting shaft, a first spring is fixedly arranged at the tail end of the supporting shaft, and the first spring is fixedly connected with the outer side of the sliding groove; a mounting groove is fixedly formed in one side of the inner bottom surface of the shell, a telescopic plate is slidably arranged in the mounting groove, the device has the advantage that the tension force of the thermal transfer ribbon can be adjusted and controlled at will, a worker can adjust the tension force of the thermal transfer ribbon according to different requirements, and therefore the completeness and attractiveness of the final printing effect are guaranteed.

Description

Technical Field

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

[0002] Barcode ribbon is a new type of barcode printing consumables with ink coated on one side of polyester film and lubricant coated on the other side to prevent print head wear. It mainly uses thermal transfer technology to support barcode printers. The heat and pressure of the barcode printer print head allow the ribbon to transfer the corresponding text and barcode information to the label. It has been widely used in packaging, logistics, manufacturing, commerce, clothing, tickets, books and other fields.

[0003] At the same time, the patent specification with announcement number CN 208896659 U discloses a thermal transfer printer, including N sets of printing kits, each printing kit including a ribbon release roll, a print head assembly, and a ribbon collection roll. The four printing kits are installed on the upper half of the printer frame, the lower half of the printer frame is provided with a paper release roll, a paper collection roll and a motor, and the back of the printer frame is provided with a main control system.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned thermal transfer printer has the following problems: the device lacks a carbon ribbon tightening device, and the tightness of the carbon ribbon determines the printing quality of the printer. If the carbon ribbon is not tightened enough during the printing process, it will lead to poor printing effect or direct failure to print the image, which prolongs the working time and causes waste of materials.

[0005] Therefore, in order to solve the above problems, a carbon ribbon tensioning device for a thermal transfer printer is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a carbon ribbon tensioning device for a thermal transfer printer, which has the advantage of being able to arbitrarily adjust the carbon ribbon tension. The staff can adjust the tension of the carbon ribbon according to different needs, thereby ensuring the integrity and aesthetics of the final printing effect, and avoiding poor printing effects caused by too loose or too tight carbon ribbon tension.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal transfer printer carbon ribbon tensioning device, comprising a shell, a sliding groove is fixedly provided on one side of the interior of the shell, a push shaft is slidably provided inside the sliding groove, a transmission belt is fixedly provided on the outside of the push shaft, a transmission disk is fixedly provided on the other end of the transmission belt, a support shaft is fixedly provided on the inside of the transmission disk, a carbon ribbon body is slidably provided on the outside of the support shaft, a first spring is fixedly provided on the tail end of the support shaft, and the first spring is fixedly connected to the outside of the sliding groove, an installation groove is fixedly provided on one side of the inner bottom surface of the shell, a telescopic plate is slidably provided inside the installation groove, a baffle is fixedly provided on the top surface of the telescopic plate, and the support shaft is in contact with the baffle.

[0008] Preferably, a limit block is slidably disposed inside the push shaft, a third spring is fixedly disposed on the bottom surface of the limit block, and the third spring is fixedly connected to the inside of the push shaft.

[0009] Preferably, a notch is formed on the top surface of the sliding groove, and the notch is fitted with the outer side of the limiting block.

[0010] Preferably, a second spring is fixedly provided on the bottom surface of the telescopic plate, and the second spring is fixedly connected to the mounting groove.

[0011] Preferably, a secondary gear is rotatably arranged on the other side of the interior of the housing, and the outer teeth of the secondary gear are meshingly connected with the main gear.

[0012] Preferably, a first fixed shaft is fixedly disposed inside the main gear, and a second fixed shaft is fixedly disposed inside the auxiliary gear.

[0013] Preferably, a ribbon dispensing shaft is fixedly arranged on the outer side of the first fixed shaft, and the ribbon dispensing shaft is rotationally connected to the ribbon body, and a ribbon recovery shaft is fixedly arranged on the outer side of the second fixed shaft, and the ribbon recovery shaft is rotationally connected to the ribbon body.

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

[0015] The utility model drives the transmission belt outside the push shaft and the transmission disk at the other end of the transmission belt to move together with the support shaft by moving the push shaft. The support shaft can adjust the surface tension of the carbon ribbon body while moving. The surface tension of the carbon ribbon body increases when it is pulled outward, and the surface tension of the carbon ribbon body decreases when it moves inward. The device can adjust the surface tension of the carbon ribbon body at will to meet different printing requirements, avoid poor printing effect due to too loose or too tight tension, and extend the printing working time due to poor printing effect, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of a carbon ribbon tensioning device for a thermal transfer printer proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the gear installation structure proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the carbon ribbon installation structure proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the transmission belt installation structure proposed by the utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the telescopic plate proposed in the utility model;

[0021] Figure 6 This is a schematic diagram of the installation structure of the limit block proposed in the utility model.

[0022] In the figure: 1. outer casing; 2. sub-gear; 3. main gear; 4. second fixed shaft; 5. first fixed shaft; 6. carbon ribbon recovery shaft; 7. carbon ribbon dispensing shaft; 8. carbon ribbon body; 9. supporting shaft; 10. transmission plate; 11. transmission belt; 12. push shaft; 13. first spring; 14. telescopic plate; 15. second spring; 16. third spring; 17. limit block; 18. sliding groove; 19. installation groove. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figures 1 to 6 As shown, the utility model provides a carbon ribbon tensioning device for a thermal transfer printer, comprising a shell 1, a sliding groove 18 is fixedly arranged on one side of the interior of the shell 1, a push shaft 12 is slidably arranged inside the sliding groove 18, a transmission belt 11 is fixedly arranged on the outer side of the push shaft 12, a transmission disk 10 is fixedly arranged on the other end of the transmission belt 11, a support shaft 9 is fixedly arranged on the inner side of the transmission disk 10, a carbon ribbon body 8 is slidably arranged on the outer side of the support shaft 9, a first spring 13 is fixedly arranged on the tail end of the support shaft 9, and the first spring 13 is fixedly connected to the outer side of the sliding groove 18, an installation groove 19 is fixedly arranged on one side of the inner bottom surface of the shell 1, a telescopic plate 14 is slidably arranged inside the installation groove 19, a baffle is fixedly arranged on the top surface of the telescopic plate 14, and the support shaft 9 is in contact with the baffle, and the characteristic of this part is that the surface tension of the carbon ribbon body 8 can be adjusted at will, thereby ensuring the completeness of the printing effect.

[0025] Specifically, a limit block 17 is slidingly arranged inside the push shaft 12, a third spring 16 is fixedly arranged on the bottom surface of the limit block 17, and the third spring 16 is fixedly connected to the inside of the push shaft 12. The limit block 17 will pop out after the third spring 16 is squeezed.

[0026] Furthermore, a notch is formed on the top surface of the sliding groove 18 , and the notch fits the outer side of the limiting block 17 , so that the limiting block 17 is ejected and stuck into the notch when it moves to the notch position, thereby preventing the limiting block 17 from rebounding.

[0027] Furthermore, a second spring 15 is fixedly disposed on the bottom surface of the telescopic plate 14 , and the second spring 15 is fixedly connected to the mounting groove 19 , and the second spring 15 provides a rebound force for the telescopic plate 14 .

[0028] It is worth noting that a secondary gear 2 is rotatably provided on the other side of the inner part of the housing 1, and the outer teeth of the secondary gear 2 are connected with the main gear 3. The main gear 3 drives the secondary gear 2 to rotate, and then drives other components to rotate.

[0029] It is worth noting that a first fixed shaft 5 is fixedly disposed inside the main gear 3, and a second fixed shaft 4 is fixedly disposed inside the auxiliary gear 2, and the fixed shafts are driven to rotate when the gears rotate.

[0030] It is worth mentioning that a carbon ribbon dispensing shaft 7 is fixedly arranged on the outer side of the first fixed shaft 5, and the carbon ribbon dispensing shaft 7 is rotatably connected to the carbon ribbon body 8, and a carbon ribbon recovery shaft 6 is fixedly arranged on the outer side of the second fixed shaft 4, and the carbon ribbon recovery shaft 6 is rotatably connected to the carbon ribbon body 8, and the carbon ribbon recovery shaft 6 can recycle the used carbon ribbon body 8.

[0031] Among them, the main gear 3 and the auxiliary gear 2 are prior art 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. The "front, back, left and right" perspectives of this device are as follows: Figure 1 The direction shown in the figure is used as the reference.

[0032] Working principle and process:

[0033] A carbon ribbon body 8 is wound around the outer side of the carbon ribbon dispensing shaft 7. The front end of the carbon ribbon body 8 is pulled up, passed through the support shaft 9 and then fixed on the outer side of the carbon ribbon recovery shaft 6. The main gear 3 rotates while driving the sub-gear 2 to rotate. The second fixed shaft 4 and the first fixed shaft 5 rotate with the main gear 3 and the sub-gear 2 at the same time. Then the carbon ribbon recovery shaft 6 and the carbon ribbon dispensing shaft 7 also rotate accordingly, so that the used carbon ribbon body 8 can be recycled. A transmission disk 10 is fixedly provided on one side of the support shaft 9. The push shaft 12 is pulled, and the push shaft 12 drives the transmission belt 11. The transmission belt 11 drives the transmission disk 10 and the support shaft 9 to move, so as to adjust the surface tension of the carbon ribbon body 8. A first spring 13 is arranged at one end of the support shaft 9. Its function is to provide a buffer force to prevent the carbon ribbon body 8 from being broken if the surface tension of the carbon ribbon body 8 is too large during printing. A sliding groove 18 is fixedly arranged on one side of the shell 1, and a notch is opened on the top surface of the sliding groove 18. When the push shaft 12 is pulled, the limit block 17 will move downward due to the extrusion. When it moves to the notch position, the limit block 17 will be popped out by the third spring 16, thereby fixing the push shaft 12 to prevent it from rebounding. The telescopic plate 14 inside the mounting groove 19 has the same effect. When the support shaft 9 is pulled, the telescopic plate 14 will be squeezed to move downward. When it is pulled to the gap of the telescopic plate 14, the telescopic plate 14 is popped out by the second spring 15, which just blocks the support shaft 9 to prevent it from rebounding.

[0034] 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.

[0035] Although 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 thermal transfer printer ribbon tensioning device, comprising a housing (1), characterized in that: A sliding groove (18) is fixedly provided on one side of the interior of the housing (1), a push shaft (12) is slidably provided inside the sliding groove (18), a transmission belt (11) is fixedly provided on the outside of the push shaft (12), a transmission disc (10) is fixedly provided on the other end of the transmission belt (11), a support shaft (9) is fixedly provided on the inside of the transmission disc (10), a carbon belt body (8) is slidably provided on the outside of the support shaft (9), a first spring (13) is fixedly provided at the tail end of the support shaft (9), and the first spring (13) is fixedly connected to the outside of the sliding groove (18), an installation groove (19) is fixedly provided on one side of the inner bottom surface of the housing (1), a telescopic plate (14) is slidably provided inside the installation groove (19), a baffle is fixedly provided on the top surface of the telescopic plate (14), and the support shaft (9) is in contact with the baffle.

2. A thermal transfer printer ribbon tensioning device according to claim 1, characterized in that: A limit block (17) is slidably disposed inside the push shaft (12), a third spring (16) is fixedly disposed on the bottom surface of the limit block (17), and the third spring (16) is fixedly connected to the inside of the push shaft (12).

3. A thermal transfer printer ribbon tensioning device according to claim 1, characterized in that: The top surface of the sliding groove (18) is provided with a notch, and the notch fits with the outer side of the limiting block (17).

4. A thermal transfer printer ribbon tensioning device according to claim 1, characterized in that: A second spring (15) is fixedly arranged on the bottom surface of the telescopic plate (14), and the second spring (15) is fixedly connected to the mounting groove (19).

5. A thermal transfer printer ribbon tensioning device according to claim 1, characterized in that: A secondary gear (2) is rotatably arranged on the other side of the interior of the housing (1), and the outer teeth of the secondary gear (2) are meshingly connected to a main gear (3).

6. A thermal transfer printer ribbon tensioning device according to claim 5, characterized in that: A first fixed shaft (5) is fixedly arranged inside the main gear (3), and a second fixed shaft (4) is fixedly arranged inside the auxiliary gear (2).

7. A thermal transfer printer ribbon tensioning device according to claim 6, characterized in that: A carbon ribbon dispensing shaft (7) is fixedly arranged on the outer side of the first fixed shaft (5), and the carbon ribbon dispensing shaft (7) is rotatably connected to the carbon ribbon body (8); a carbon ribbon recovery shaft (6) is fixedly arranged on the outer side of the second fixed shaft (4), and the carbon ribbon recovery shaft (6) is rotatably connected to the carbon ribbon body (8).

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