Thermal transfer ribbon printer

Abstract

The utility model discloses a thermal transfer ribbon printer, which relates to the field of printing equipment, is used for solving the problem that the sizes and weights of the two ends of the conventional thermal transfer ribbon printer are greatly different, and comprises a shell, and a motor, a thermal transfer ribbon shaft, a paper feeding roll shaft, a first gear set and a second gear set which are arranged on the shell, the first gear set and the second gear set are located at the two ends of the shell in the length direction correspondingly. And one end of the paper feeding roller shaft is in transmission connection with the motor through a first gear set, and the other end of the paper feeding roller shaft is in transmission connection with the thermal transfer ribbon shaft through a second gear set. The thermal transfer ribbon printer can effectively balance the size and the weight of the two ends of the printer, and is beneficial to the symmetrical and balanced design of products.

Description

Technical Field

[0001] The utility model relates to the field of printing equipment, in particular to a carbon ribbon printer. Background Art

[0002] Most modern ribbon printers tend to use one motor to drive both the ribbon shaft and the paper feed roller shaft to simplify the design and improve energy efficiency. Specifically, the ribbon shaft and the paper feed roller shaft are connected by a gear set to achieve synchronous rotation. For example, in existing ribbon printers, there are generally two ribbon shafts. The front ribbon shaft is the active shaft, and the rear ribbon shaft is the driven shaft. The active shaft is driven by a motor and is connected to the paper feed roller shaft through a gear set to drive the paper feed roller shaft to move synchronously. The driven shaft relies on a damping plate or a damping spring to keep the ribbon in a straightened and flat state.

[0003] Among them, the gear set between the motor, the carbon ribbon roller and the paper feed roller is usually installed at one end of the printer at the same time. The defects and shortcomings of this design are: it will cause one end of the printer to be larger in size and heavier in weight, which is not conducive to the symmetry and balance design of the product.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a carbon ribbon printer, which at least solves the technical problem of how to balance the size and weight of two ends of the printer.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A carbon ribbon printer comprises: a housing, and a motor, a carbon ribbon shaft, a paper feeding roller shaft, a first gear set and a second gear set arranged on the housing;

[0010] The first gear set and the second gear set are respectively located at two ends of the housing in the length direction;

[0011] The paper feeding roller is arranged along the length direction of the shell, and one end of the paper feeding roller is connected to the motor through a first gear set, and the other end of the paper feeding roller is connected to the carbon ribbon shaft through a second gear set.

[0012] In some embodiments, the shell includes a base and an upper cover that can be opened relative to the base, and the paper feed roller is rotatably arranged in the upper cover; the first gear group includes a first gear fixedly connected to one end of the paper feed roller, and other gears arranged in the base, and the second gear group includes a second gear fixedly connected to the other end of the paper feed roller, and other gears arranged in the base; wherein, when the upper cover is closed with the base, the first gear is meshed with the other gears of the first gear group for transmission, and the second gear is meshed with the other gears of the second gear group for transmission.

[0013] In some embodiments, a mounting seat is provided at each end of the base, the motor and other gears of the first gear group are respectively provided on both sides of one mounting seat, the other gears of the second gear group are provided on another mounting seat, and the motor is located between the first gear group and the second gear group.

[0014] In some embodiments, the carbon ribbon shaft includes an unwinding shaft and a rewinding shaft, the second gear set is transmission-connected to the rewinding shaft, and a damping structure is provided between the unwinding shaft and the housing.

[0015] In some embodiments, in a top view of the shell, the paper feed roller is located in the middle of the shell, and the unwinding shaft and the rewinding shaft are respectively located on both sides of the paper feed roller.

[0016] In some embodiments, the shell profile is a bilaterally symmetrical structure.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the ribbon printer provided by the utility model has the following beneficial effects:

[0019] When the ribbon printer is working, the motor first drives the paper feed roller to rotate through the first gear set, and then the paper feed roller drives the ribbon shaft to rotate through the second gear set, thereby realizing the synchronous action of the paper feed roller and the ribbon shaft, wherein the first gear set and the second gear set are respectively located at the two ends of the shell in the length direction, and at the same time, the paper feed roller is arranged along the length direction of the shell, and the two ends are respectively connected to the first gear set and the second gear set, thereby avoiding the problem that the existing two gear sets are installed at the same end of the printer, resulting in a larger size and heavier weight at one end of the printer, and is conducive to the symmetrical and balanced design of the product. It can be seen that the ribbon printer of the utility model can effectively balance the size and weight of the two ends of the printer, which is conducive to the symmetrical and balanced design of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an external stereoscopic diagram of the carbon ribbon printer in the embodiment.

[0021] Figure 2It is a three-dimensional view of the interior of the carbon ribbon printer in the embodiment.

[0022] Figure 3 It is a three-dimensional view of the interior of the upper cover of the carbon ribbon printer in the embodiment.

[0023] Figure 4 It is a three-dimensional view of the interior of the carbon ribbon printer base in the embodiment.

[0024] Figure numerals: housing 1, base 11, upper cover 12, mounting base 13; motor 2; ribbon shaft 3, unwinding shaft 31, winding shaft 32; paper feed roller shaft 4; first gear set 5, first gear 50; second gear set 6, second gear 60. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] The motor, the gear set between the ribbon roller and the paper feed roller of the existing ribbon printer are usually installed at one end of the printer at the same time, resulting in a larger size and heavier weight at one end of the printer, which is not conducive to the symmetry and balance design of the product.

[0027] In order to solve the above technical problems, this embodiment provides a carbon ribbon printer, please refer to Figures 1 to 4 As shown, Figure 1 It is an external stereogram of the carbon ribbon printer in the embodiment, Figure 2 This is a three-dimensional diagram of the interior of the ribbon printer in the embodiment. Figure 3 This is a three-dimensional diagram of the interior of the upper cover of the carbon ribbon printer in the embodiment. Figure 4 It is a three-dimensional view of the interior of the carbon ribbon printer base in the embodiment.

[0028] The ribbon printer of this embodiment includes: a shell 1, and a motor 2, a ribbon shaft 3, a paper feed roller shaft 4, a first gear set 5 and a second gear set 6 arranged on the shell 1; the first gear set 5 and the second gear set 6 are respectively located at the two ends of the shell 1 in the length direction; the paper feed roller shaft 4 is arranged along the length direction of the shell 1, and one end is connected to the motor 2 through the first gear set 5, and the other end is connected to the ribbon shaft 3 through the second gear set 6.

[0029] It can be understood that the specific number of gears and the transmission ratio of the first gear set 5 and the second gear set 6 can be set as required.

[0030] When the carbon ribbon printer of the above technical solution is working, the motor 2 first drives the paper feed roller 4 to rotate through the first gear group 5, and the paper feed roller 4 then drives the carbon ribbon shaft 3 to rotate through the second gear group 6, thereby realizing the synchronous action of the paper feed roller 4 and the carbon ribbon shaft 3, wherein the first gear group 5 and the second gear group 6 are respectively located at the two ends of the shell 1 in the length direction, and at the same time, the paper feed roller 4 is arranged along the length direction of the shell 1, and the two ends are respectively connected to the first gear group 5 and the second gear group 6, thereby avoiding the problem that the existing two gear groups are installed at the same end of the printer, resulting in a larger size and heavier weight at one end of the printer, which is conducive to the symmetry and balance design of the product.

[0031] In one embodiment of the paper feeding roller being arranged on the housing 1, see Figure 1 and Figure 2 As shown, the housing 1 includes a base 11 and an upper cover 12 that can be opened relative to the base 11, and the paper feed roller 4 is rotatably arranged in the upper cover 12; the first gear set 5 includes a first gear 50 fixedly connected to one end of the paper feed roller 4, and other gears arranged in the base 11, and the second gear set 6 includes a second gear 60 fixedly connected to the other end of the paper feed roller 4, and other gears arranged in the base 11; wherein, when the upper cover 12 covers the base 11, the first gear 50 meshes with at least one of the other gears of the first gear set 5, thereby realizing transmission with other gears of the first gear set 5, and the second gear 60 meshes with other gears of the second gear set 6. In this embodiment, the paper feed roller 4 is arranged on the upper cover 12, which can reduce the space occupied by the base 11 and facilitate the maintenance and replacement of the paper feed roller 4.

[0032] Exemplarily, the upper cover 12 is connected to the base 11 via a rotating shaft, and the upper cover 12 and the base 11 are fixed by a snap-fit ​​structure when they are covered.

[0033] For example, see Figure 2 and Figure 4 As shown, the other gears of the first gear set 5 and the other gears of the second gear set 6 are arranged in the base 11 in the following manner: a mounting seat 13 is provided at each end of the base 11, the motor 2 and the other gears of the first gear set 5 are respectively arranged on both sides of one mounting seat 13, and the other gears of the second gear set 6 are arranged on the other mounting seat 13, and the motor 2 is located between the first gear set 5 and the second gear set 6. With this arrangement, the center of gravity of the motor 2 is located between the first gear set 5 and the second gear set 6, which is conducive to balancing the weight at both ends of the printer.

[0034] In one embodiment of the paper feeding roller shaft 4, the other end is connected to the ribbon shaft 3 through the second gear set 6. Figure 2As shown, the carbon ribbon shaft 3 includes a unwinding shaft 31 and a reeling shaft 32, the second gear set 6 is transmission-connected to the reeling shaft 32, a damping structure is provided between the unwinding shaft 31 and the shell 1, when working, the paper feed roller shaft 4 drives the reeling shaft 32 to rotate through the second gear set 6, and the reeling shaft 32 gradually reels the carbon ribbon on the unwinding shaft 31, and since a damping structure is provided between the unwinding shaft 31 and the shell 1, the carbon ribbon can be kept in a tensioned state.

[0035] In order to further make the weight of the product more uniform and improve the stability of the product, when looking down at the shell 1, refer to Figure 2 As shown, the paper feed roller 4 is located in the middle of the housing 1 , and the unwinding shaft 31 and the rewinding shaft 32 are respectively located on both sides of the paper feed roller 4 .

[0036] For example, see Figure 1 As shown, the shell 1 has a left-right symmetrical structure.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ribbon printer, characterized in that: include: A housing, and a motor, a carbon ribbon shaft, a paper feed roller shaft, a first gear set and a second gear set arranged on the housing; The first gear set and the second gear set are respectively located at two ends of the housing in the length direction; The paper feeding roller is arranged along the length direction of the shell, and one end of the paper feeding roller is connected to the motor through a first gear set, and the other end of the paper feeding roller is connected to the carbon ribbon shaft through a second gear set.

2. The ribbon printer according to claim 1, characterized in that: The housing comprises a base and an upper cover which can be opened relative to the base, and the paper feeding roller is rotatably arranged in the upper cover; The first gear set includes a first gear fixedly connected to one end of the paper feed roller shaft, and other gears arranged in the base, and the second gear set includes a second gear fixedly connected to the other end of the paper feed roller shaft, and other gears arranged in the base; When the upper cover is closed with the base, the first gear is meshed with other gears of the first gear set for transmission, and the second gear is meshed with other gears of the second gear set for transmission.

3. The ribbon printer according to claim 2, characterized in that: A mounting seat is provided at each end of the base, the motor and other gears of the first gear set are respectively arranged on both sides of one mounting seat, the other gears of the second gear set are arranged on another mounting seat, and the motor is located between the first gear set and the second gear set.

4. The ribbon printer according to claim 1, characterized in that: The carbon ribbon shaft comprises an unwinding shaft and a rewinding shaft, the rewinding shaft is transmission-connected with the second gear set, and a damping structure is arranged between the unwinding shaft and the housing.

5. The ribbon printer according to claim 4, characterized in that: In a top view of the shell, the paper feed roller is located in the middle of the shell, and the unwinding shaft and the rewinding shaft are respectively located on both sides of the paper feed roller.

6. The ribbon printer according to claim 1, characterized in that: The shell profile is a left-right symmetrical structure.

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