Novel thermal printer

Abstract

The utility model discloses a novel thermal printer which comprises a printer body, and the printer body is provided with a printing rubber roller, a belt transmission assembly and a tension adjusting assembly. The tension adjusting assembly is arranged on one side of the belt transmission assembly; the belt transmission assembly is connected with the printing rubber roller and drives the printing rubber roller to rotate. According to the novel thermal printer disclosed by the utility model, the tension adjusting assembly is arranged on one side of the belt transmission assembly for driving the printing rubber roller to rotate, so that the tension of the belt can be adjusted through the tension adjusting assembly after the belt is loosened or aged, and the whole belt does not need to be replaced; in addition, the tension adjusting assembly can also ensure that the belt can keep proper tension when printing paper with different thicknesses is printed.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and in particular to a novel thermal printer. Background Technology

[0002] In the field of thermal printers, the thermal printing roller (also known as the pressure roller or heating roller) is a key component inside the printer. Its main function is to transfer heat from the printhead to the thermal paper, ensuring that images or text are transferred clearly and evenly onto the paper. The thermal printing roller usually works in conjunction with the paper feed mechanism, rotating to advance the thermal paper and achieve continuous printing.

[0003] Existing thermal printing rollers typically employ a combination of a drive motor and gear transmission. The drive motor is connected to the gears via a belt, and the gears are in turn connected to the thermal printing roller. When the motor rotates, power is transmitted to the thermal printing roller through the belt and gears, causing the roller to rotate. This design effectively transmits the motor's power to the printing roller while maintaining a stable rotational speed and appropriate pressure, thus ensuring the normal operation of the thermal printer and print quality.

[0004] Over time, belts will stretch due to wear and aging. Current thermal printers lack belt tensioning mechanisms in their printing roller drive systems; therefore, when the belt becomes loose or worn, it must be replaced to ensure normal printing. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a novel thermal printer, including a printer body, wherein the printer body is provided with a printing roller, a belt drive assembly and a tension adjustment assembly;

[0006] The tension adjustment component is located on one side of the belt drive component; the belt drive component is connected to the printing roller and drives the printing roller to rotate.

[0007] Preferably, the belt drive assembly includes a driving pulley, a driven pulley, and a belt, wherein:

[0008] The belt connects the driving pulley and the driven pulley; the tension adjustment assembly is located on one side of the belt; the tension wheel of the tension adjustment assembly contacts the outer surface of the belt;

[0009] Adjusting the tension adjustment assembly can move the tension wheel toward or away from the belt.

[0010] Preferably, the tension adjustment assembly includes a tension wheel, a positioning part, a connecting arm, an adjustment hole, and a fastener, wherein:

[0011] The positioning part is located on one side of the outer surface of the belt; one end of the connecting arm is movably connected to the positioning part, and the other end is provided with an elongated adjustment hole;

[0012] The tensioning wheel is mounted on the connecting arm; a fastening groove is provided on the side wall of the printer body on one side of the adjustment hole; the fastener passes through the adjustment hole and is connected to the fastening groove.

[0013] Preferably, the fastening groove and the positioning part are respectively located at the ends of the two columns; the tensioning wheel is located on the side of the connecting arm near the side wall of the printer body.

[0014] Preferably, an anti-pull component is provided between the printing component and the paper output port of the printer body;

[0015] When the printing component prints, the anti-pull component holds the printing paper between the printing component and the paper output port;

[0016] After printing is complete, the anti-pull component will transfer the printed paper out of the paper output port.

[0017] Preferably, the anti-pull component includes a set of rubber rollers, a driving device, a notch, and a storage space, wherein:

[0018] The rubber roller assembly is located at the paper outlet; the rubber roller assembly is connected to the drive device;

[0019] The paper feed channel between the rubber roller assembly and the printing component has a notch; the notch connects to a storage space; the storage space can accommodate the printing paper that arches out from the notch.

[0020] Preferably, the notch is provided with an arc-shaped guide structure.

[0021] Preferably, a cutting component is provided between the printing component and the anti-pull component.

[0022] The novel thermal printer provided by this utility model has a tension adjustment component on one side of the belt drive assembly that drives the printing roller to rotate. When the belt becomes loose or ages, the tension of the belt can be adjusted by the tension adjustment component without replacing the entire belt. Furthermore, the tension adjustment component can also ensure that the belt maintains appropriate tension when printing on paper of different thicknesses. Attached Figure Description

[0023] Figure 1 A perspective view of a novel thermal printer provided for an embodiment of this utility model;

[0024] Figure 2 Another perspective view of the printer provided in this embodiment of the utility model;

[0025] Figure 3 for Figure 2 Cross-sectional view of AA in the middle;

[0026] Figure 4 A cross-sectional view of the anti-pull component during the printing process;

[0027] The components are as follows: 10. Printer body; 11. Printing assembly; 12. Belt drive assembly; 121. Drive wheel; 122. Driven wheel; 123. Belt; 13. Tension adjustment assembly; 131. Tension wheel; 132. Positioning part; 133. Connecting arm; 134. Adjustment hole; 135. Fastener; 136. Fastening groove; 137. Column; 14. Paper outlet; 15. Anti-pull assembly; 151. Rubber roller assembly; 152. Notch; 1521. Guide structure; 153. Storage space; 154. Movable guide plate; 1541. Connecting part; 16. Cutter assembly; 20. Printing paper. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods. Unless otherwise specified, the materials and reagents used in the following embodiments can be obtained commercially.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] This utility model provides a novel thermal printer, including a printer body 10, wherein the printer body 10 is provided with a printing roller, a belt drive assembly 12 and a tension adjustment assembly 13;

[0032] The tension adjustment component 13 is located on one side of the belt drive component 12; the belt drive component 12 is connected to the printing roller and drives the printing roller to rotate.

[0033] In specific implementation, such as Figure 1 As shown, the new thermal printer includes a printer body 10, which is equipped with a printing roller (not shown in the figure), a belt drive assembly 12, and a tension adjustment assembly 13.

[0034] The tension adjustment component 13 is located on one side of the belt drive component 12; the belt drive component 12 is connected to the printing roller and drives the printing roller to rotate. In this embodiment, the printer body 10, the printing roller, etc., are all existing structures, and will not be described in detail here. The belt drive component 12 and the tension adjustment component 13 can also adopt existing transmission component structures and tension adjustment structures.

[0035] The novel thermal printer provided in this embodiment of the invention has a tension adjustment component on one side of the belt drive assembly that drives the printing roller to rotate. When the belt becomes loose or ages, the tension of the belt can be adjusted by the tension adjustment component without replacing the entire belt. Furthermore, the tension adjustment component can also ensure that the belt maintains appropriate tension when printing on paper of different thicknesses.

[0036] Furthermore, the belt drive assembly 12 includes a driving pulley 121, a driven pulley 122, and a belt 123, wherein:

[0037] The belt 123 connects the driving pulley 121 and the driven pulley 122; the tension adjustment assembly 13 is located on one side of the belt 123; the tension wheel 131 of the tension adjustment assembly 13 contacts the outer surface of the belt 123;

[0038] Adjusting the tension adjustment assembly 13 can move the tension wheel 131 toward or away from the belt 123.

[0039] In specific implementation, such as Figure 1 As shown, the belt drive assembly 12 includes a driving pulley 121, a driven pulley 122, and a belt 123, wherein:

[0040] The drive pulley 121 is connected to the drive motor (not shown) inside the printer body 10; the belt 123 connects the drive pulley 121 and the driven pulley 122; the driven pulley 122 is connected to the printing roller (not shown) inside the printer body 10; the tension adjustment assembly 13 is located on one side of the belt 123; the tension wheel 131 of the tension adjustment assembly 13 contacts the outer surface of the belt 123; adjusting the tension adjustment assembly 13 can move the tension wheel 131 toward or away from the belt 123. This embodiment adopts a two-stage transmission structure, which is simple and practical; by designing the tension adjustment assembly 13 to be located on one side of the belt 123, when the belt-touching assembly 12 is compact, interference between the tension adjustment assembly 13 and the belt drive assembly 12 can be avoided.

[0041] Preferably, the diameter of the driven wheel 122 is larger than the diameter of the driving wheel 121 to improve the transmission effect.

[0042] Furthermore, the tension adjustment assembly 13 includes a tensioning wheel 131, a positioning part 132, a connecting arm 133, an adjustment hole 134, and a fastener 135, wherein:

[0043] The positioning part 132 is located on one side of the outer surface of the belt 123; one end of the connecting arm 133 is movably connected to the positioning part 132, and the other end is provided with an elongated adjustment hole 134;

[0044] The tensioning wheel 131 is mounted on the connecting arm 133; a fastening groove 136 is provided on the side wall of the printer body 10 on one side of the adjustment hole 134; the fastener 135 passes through the adjustment hole 134 and is connected to the fastening groove 136.

[0045] In specific implementation, such as Figure 1 As shown, the tension adjustment assembly 13 includes a tensioning wheel 131, a positioning part 132, a connecting arm 133, an adjustment hole 134, and a fastener 135, wherein:

[0046] The positioning part 132 is located on the side wall of the printer body 10 on one side of the outer surface of the belt 123; one end of the connecting arm 133 is movably connected to the rotating shaft of the positioning part 132, and the other end is provided with an elongated adjustment hole 134; the adjustment hole 134 is arc-shaped; the fastener 135 is a bolt.

[0047] The tensioning wheel 131 is located on the side of the connecting arm 133 near the belt 123; the printer body 10 sidewall on the side of the adjustment hole 134 is provided with a fastening groove 136; the fastening groove 136 is a threaded groove; the fastener 135 passes through the adjustment hole 134 and is connected to the fastening groove 136.

[0048] During adjustment, the user rotates the connecting arm 133 around the positioning part 132. When the connecting arm 133 rotates toward the belt 123, it drives the tension wheel 131 to rotate toward the belt 123, thereby tensioning the belt. Through the elongated adjustment hole 134, when the connecting arm 133 rotates, the fastener 135 can also pass through the adjustment hole 134 and be fastened to the fastening groove 136.

[0049] The tension adjustment component 13 structure provided in this embodiment allows users to adjust the tension of the belt 123 according to actual usage needs.

[0050] Furthermore, the fastening groove 136 and the positioning part 132 are respectively provided at the ends of the two columns 137; the tensioning wheel 131 is provided on the side of the connecting arm 133 near the side wall of the printer body 10.

[0051] In specific implementation, such as Figure 1 As shown, a column 137 is provided on the side wall of the printer body 10 on one side of the adjustment hole 134; a fastening groove 136 is provided at the end of the column 137, and at this time, the positioning part 132 is also provided at the end of the other column. The tensioning wheel 131 is set in the space formed by the two columns 137 and the connecting arm 133 through the support structure formed by the columns. When other structures are provided around the tension adjustment assembly 13, the tensioning wheel 131 can be protected and the tensioning wheel 131 can be prevented from being interfered with by other structures.

[0052] In specific implementation, such as Figure 2 , Figure 3 and Figure 4 As shown, an anti-pull component 15 is provided between the printing component 11 and the paper output port 14 of the printer body 10; the printer body 10 is an existing thermal printer, and its printing and paper feeding principles are existing technologies, which will not be described in detail here.

[0053] During printing, the anti-pull component 15 holds the printing paper 20 between the printing component 11 and the paper output port 14; after printing is completed, the anti-pull component 15 then transmits the printing paper 20 out of the paper output port 14. In this embodiment, the anti-pull component 15 first holds the printing paper 20 during the printing process (e.g., ...). Figure 4 As shown, after printing is completed, the printing paper 20 is fed out from the paper output port 14, thereby avoiding the phenomenon of the printing paper 20 being pulled during the printing process and solving the problem of the printing paper 20 being pulled from the root.

[0054] In this embodiment, an anti-pull component 15 is provided between the printing component 11 and the paper output port 14 of the printer body 10. The anti-pull component 15 first collects the printing paper 20 during the printing process, and then sends the printing paper 20 out from the paper output port 14 after printing is completed, thereby avoiding the phenomenon of the printing paper 20 being pulled during the printing process and solving the problem of the printing paper 20 being pulled from the root.

[0055] In specific implementation, such as Figure 2 , Figure 3 As shown, the anti-pull assembly 15 includes a rubber roller assembly 151, a drive device, a notch 152, and a storage space 153, wherein:

[0056] A rubber roller assembly 151 is located at the paper outlet 14; the rubber roller assembly 151 is connected to a drive device; the drive device is a motor or the like for driving at least one rubber roller (as shown below) in the rubber roller assembly 151 to rotate.

[0057] The paper feeding channel between the rubber roller assembly 151 and the printing assembly 11 is provided with a notch 152; the length of the notch 152 perpendicular to the paper feeding direction must be greater than the width of the printing paper 20; the notch 152 connects to the storage space 153; the storage space 153 can accommodate the printing paper 20 that is arched from the notch 152.

[0058] During operation, the printing paper 20 is fed by the printer body 10 to the printing assembly 11 for printing. The front end of the printed paper 20 is then fed to the rubber roller assembly 151 and blocked. When the paper continues to be fed towards the rubber roller assembly 151, the printing paper 20 arches from the notch 152 towards the storage space 153 (e.g., ...). Figure 4 (As shown) until printing is complete; when printing is complete, the rubber roller group 151 is started, the rubber roller group 151 clamps the front end of the printing paper 20 and continues to move the printing paper 20 toward the paper outlet 14 until the printed sheet of paper 20 is sent out.

[0059] In this embodiment, the anti-pull component 15, consisting of a rubber roller group 151, a driving device, a notch 152, and a storage space 153, achieves the effect of storing the printing paper 20 during the printing process and outputting the printing paper 20 after printing is completed. The structure is simple and practical.

[0060] Preferably, the roller assembly 151 is equipped with a paper detection sensor. During printing, when the paper detection sensor detects that the front end of the paper 20 has entered or is close to the roller assembly 151, the roller assembly 151 starts to rotate, clamping the front end of the paper 20. The paper detection sensor includes, but is not limited to, existing thermistor sensors, reed switch sensors, photoelectric sensors, etc. Detecting the presence of paper using a paper detection sensor is a common technique in the printer industry; its structure and principle will not be elaborated further.

[0061] In specific implementation, such as Figure 3 As shown, the notch 152 is provided with an arc-shaped guide structure 1521. The arc-shaped structure can better guide the protective layer of the printing paper 20 into the storage space 153.

[0062] In specific implementation, such as Figure 4As shown, a movable guide plate 154 is provided on the side of the notch 152 near the printing assembly 11; the movable guide plate 154 is provided with a connecting part 1541, which is movably connected to the side wall of the printer body 10 housing via the connecting part 1541. When the middle of the printing paper 20 is inserted into the storage space 153, the free end of the movable guide plate 154 is arched by the printing paper 20, which can increase the width of the notch 152 in the paper feeding direction, so that the middle of the printing paper 20 can enter the storage space 153 and exit more smoothly.

[0063] In specific implementation, such as Figure 3 As shown, a cutter assembly 16 is provided between the printing assembly 11 and the anti-pull assembly 15. The cutter assembly 16 is used for cutting roll paper or continuous printing paper. The cutter assembly 16 includes, but is not limited to, existing integrated cutters, separate cutters, etc., used for cutting printing paper.

[0064] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new thermal printer characterized by: Printer body (10) is provided with printing rubber roller, belt drive assembly (12) and tension adjustment assembly (13); The tension adjustment assembly (13) is arranged on one side of the belt drive assembly (12); the belt drive assembly (12) is connected with the printing rubber roller and drives the printing rubber roller to rotate.

2. The new thermal printer according to claim 1, characterized in that: The belt drive assembly (12) comprises a driving wheel (121), a driven wheel (122) and a belt (123), wherein: The belt (123) is connected with the driving wheel (121) and the driven wheel (122); the tension adjustment assembly (13) is arranged on one side of the belt (123); the tensioning wheel (131) of the tension adjustment assembly (13) contacts the outer surface of the belt (123); Adjusting the tension adjustment assembly (13) can make the tensioning wheel (131) move to one side of the belt (123) or away from the belt (123).

3. The new thermal printer according to claim 1 or 2, characterized in that: The tension adjustment assembly (13) comprises a tensioning wheel (131), a positioning part (132), a connecting arm (133), an adjusting hole (134) and a fastener (135), wherein: The positioning part (132) is arranged on one side of the outer surface of the belt (123); one end of the connecting arm (133) is movably connected with the positioning part (132), and the other end is provided with an elongated adjusting hole (134); The tensioning wheel (131) is arranged on the connecting arm (133); one side of the adjusting hole (134) is provided with a fastening groove (136) in the side wall of the printer body (10); the fastener (135) is connected with the adjusting hole (134) and the fastening groove (136).

4. The new thermal printer according to claim 3, characterized in that: The fastening groove (136) and the positioning part (132) are respectively arranged at the end of the two vertical columns (137); the tensioning wheel (131) is arranged on one side of the connecting arm (133) close to the side wall of the printer body (10).

5. The new thermal printer according to claim 1, characterized in that: The printer body (10) is provided with an anti-pulling assembly (15) between the printing assembly (11) and the paper outlet (14); When the printing assembly (11) is printing, the anti-pulling assembly (15) stores the printing paper (20) between the printing assembly (11) and the paper outlet (14); When the printing is completed, the anti-pulling assembly (15) transmits the printing paper (20) out of the paper outlet (14).

6. The new thermal printer according to claim 5, characterized in that: The anti-pulling assembly (15) comprises a rubber roller group (151), a driving device, a notch (152) and a storage space (153), wherein: The rubber roller group (151) is arranged at the paper outlet (14); the rubber roller group (151) is connected with the driving device; The paper path between the rubber roller group (151) and the printing assembly (11) is provided with a notch (152); the notch (152) is communicated with the storage space (153); the storage space (153) can accommodate the printing paper (20) arched from the notch (152).

7. The new thermal printer according to claim 5, characterized in that: The notch (152) is provided with an arc-shaped guide structure (1521).

8. The new thermal printer according to claim 5, characterized in that: The printing assembly (11) and the anti-pulling assembly (15) are provided with a cutter assembly (16).

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