A thermal printer pressing structure and use method thereof

Abstract

The present invention provides a lamination structure of a thermal printer and a method for using the same. The structure includes a rocker arm, a tension spring, a power arm, a thermal sheet, a rubber roller, and a reset spring. The end of the rocker arm is connected to one end of the tension spring, the other end of the tension spring is connected to the front end of the power arm, the lower end of the power arm is connected to the reset spring for resetting, the rear end of the power arm is connected to a cross universal joint, the thermal sheet is attached to one end of the cross universal joint, a printing channel is formed between the thermal sheet and the rubber roller, and the rocker arm applies force between the thermal sheet and the rubber roller through the tension spring, the power arm, and the cross universal joint, so as to cause the thermal sheet to move toward or away from the rubber roller. The method of the present invention uses the above structure for lamination printing. The present invention can automatically adjust the balance during lamination so that the pressure is evenly distributed on the surface of the thermal paper, and can achieve the purpose of overall uniform distribution of pressure, thereby ensuring the consistency of the overall printing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal printers, and in particular to a pressing structure of a thermal printer and a method of using the structure. Background Art

[0002] The working principle of a thermal printer is that a semiconductor heating element is installed on the print head. After the print head is heated and contacts the thermal printing paper, the required pattern can be printed out. Its principle is similar to that of a thermal fax machine.

[0003] Most of the printer thermal sheets currently on the market use a spring or shrapnel method to directly apply pressure to the thermal sheet to make it fit with the thermal printing paper and rubber roller, which easily causes uneven pressure and leads to uneven heating of the thermal printing paper, resulting in poor printing. Summary of the invention

[0004] The main purpose of the present invention is to provide a thermal printer lamination structure which can automatically adjust the balance during lamination so that the pressure is evenly distributed on the surface of thermal paper, thereby ensuring the consistency of the overall printing effect.

[0005] Another object of the present invention is to provide a method for using a lamination structure of a thermal printer which can automatically adjust the balance during lamination so that the pressure is evenly distributed on the surface of the thermal paper, thereby ensuring the consistency of the overall printing effect.

[0006] In order to achieve the above-mentioned main purpose, the present invention provides a pressing structure of a thermal printer, which includes a rocker arm, a tension spring, a power arm, a thermal sheet, a rubber roller, and a reset spring. The end of the rocker arm is connected to one end of the tension spring, the other end of the tension spring is connected to the front end of the power arm, the lower end of the power arm is connected to the reset spring for resetting, the rear end of the power arm is connected to a cross universal joint, and the thermal sheet is attached to one end of the cross universal joint; a printing channel is formed between the thermal sheet and the rubber roller, and the rocker arm applies force between the thermal sheet and the rubber roller through the tension spring, the power arm, and the cross universal joint to cause the thermal sheet to move toward or away from the rubber roller.

[0007] In a further solution, the cross universal joint includes a rotating shaft bracket and a first rotating shaft and a second rotating shaft installed on the rotating shaft bracket. The rear end of the power arm is hinged to the rotating shaft bracket through the first rotating shaft, and a thermal film bracket is sleeved on the second rotating shaft, and the thermal film is attached to the thermal film bracket.

[0008] In a further embodiment, the first rotation axis and the second rotation axis are perpendicular to each other.

[0009] In a further solution, when the rocker arm is rotated by external force, the tension spring is pulled to stretch and deform to generate tension, and the tension spring acts on the power arm. The power arm applies contact stress to the rotating shaft bracket, driving the thermal film bracket and the thermal film to move toward the rubber roller.

[0010] In a further solution, when the rocker arm is not subjected to external force, the reset spring drives the power arm to reset, causing the thermal sheet to separate from the rubber roller.

[0011] In a further embodiment, the rotating shaft bracket includes a support, the support has a first connecting part and a second connecting part, the first rotating shaft is rotatably connected to the first connecting part of the support via a bearing, and the second rotating shaft is rotatably connected to the second connecting part of the support via a bearing.

[0012] It can be seen that the structure provided by the present invention attaches the thermal sheet to the cross universal joint, and the balance can be automatically adjusted when the thermal sheet, thermal printing paper and rubber roller are attached by means of the cross universal joint, so as to achieve the purpose of overall uniform distribution of pressure, thereby solving the problem of poor printing caused by uneven pressure.

[0013] Therefore, when the thermal printing paper is fed into the rubber roller and the thermal film for printing, the present invention can ensure uniform pressure between the two, ensure uniform printing effect of the printed font thickness, effectively reduce the waste of printing paper, and thus improve the product yield.

[0014] In order to achieve the above-mentioned another purpose, the present invention provides a method for using a pressing structure of a thermal printer, wherein the pressing structure of the thermal printer adopts the pressing structure of the thermal printer mentioned above, and the method for using comprises the following steps: when the thermal printer is printing, the thermal sheet is attached to one end of the cross universal joint, and a printing channel is formed between the thermal sheet and the rubber roller; when the rocker arm is rotated by an external force, the tension spring is stretched and deformed to generate tension, and the tension is transmitted to the shaft bracket of the cross universal joint through the power arm, so that the shaft bracket rotates around the first shaft; when relative pressure is generated between the thermal sheet and the rubber roller, the thermal sheet bracket rotates around the second shaft, so that the thermal sheet moves toward the rubber roller; during pressing, the balance is adjusted by the thermal sheet bracket, so that the pressure between the thermal sheet and the rubber roller reaches a uniform stress state.

[0015] A further solution is that when the external force of the rocker arm disappears, the reset spring drives the power arm to return to the starting position, causing the thermal sheet to separate from the rubber roller, so that the thermal printing paper can be taken out / put in.

[0016] It can be seen that the method of the present invention adheres the thermal sheet to the cross universal joint, and the balance can be automatically adjusted when the thermal sheet, thermal printing paper and rubber roller are adhered by means of the cross universal joint, so as to achieve the purpose of overall uniform distribution of pressure, thereby solving the problem of poor printing caused by uneven pressure.

[0017] Therefore, when the thermal printing paper is fed into the rubber roller and the thermal film for printing, the present invention can ensure uniform pressure between the two, ensure uniform printing effect of the printed font thickness, effectively reduce the waste of printing paper, and thus improve the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a lamination structure of a thermal printer of the present invention.

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not limited to the present invention.

[0021] A thermal printer press structure embodiment:

[0022] See also Figure 1 The pressing structure of the thermal printer of the present invention comprises a rocker arm 7, a tension spring 6, a power arm 8, a thermal sheet 1, a rubber roller 10, and a reset spring 5. The end of the rocker arm 7 is connected to one end of the tension spring 6, the other end of the tension spring 6 is connected to the front end of the power arm 8, the lower end of the power arm 8 is connected to the reset spring 5 for resetting, the rear end of the power arm 8 is connected with a cross universal joint, and the thermal sheet 1 is attached to one end of the cross universal joint; a printing channel is formed between the thermal sheet 1 and the rubber roller 10, the rocker arm 7 applies force between the thermal sheet 1 and the rubber roller 10 through the tension spring 6, the power arm 8, and the cross universal joint, so as to cause the thermal sheet 1 to move toward or away from the rubber roller 10. When the thermal sheet 1 is attached to the rubber roller 10, the rubber roller 10 is used to press the thermal printing paper to make it in close contact with the thermal sheet 1.

[0023] In this embodiment, the cross universal joint includes a rotating shaft bracket 4 and a first rotating shaft 9 mounted on the rotating shaft bracket 4, a second rotating shaft 3, and a rear end of a power arm 8 is hinged on the rotating shaft bracket 4 through the first rotating shaft 9, a thermal film bracket 2 is sleeved on the second rotating shaft 3, and the thermal film 1 is attached to the thermal film bracket 2. Among them, the first rotating shaft 9 and the second rotating shaft 3 are perpendicular to each other.

[0024] The thermal sheet support 2 is connected to the second rotating shaft 3 by rivets. When the plane of the thermal sheet 1 is in contact with the rubber roller 10, the thermal sheet support 2 rotates in a direction perpendicular to the second rotating shaft 3 until the thermal sheet 1 can be evenly attached to the surface of the rubber roller 10. The rubber roller 10 of this embodiment is a fixed rotating structure, and the thermal sheet 1 is attached to the thermal sheet support 2 after the thermal sheet support 2 rotates.

[0025] In this embodiment, when the rocker arm 7 is rotated by external force, the tension spring 6 is stretched and deformed to generate tension, and the tension spring 6 acts on the power arm 8. The power arm 8 applies contact stress to the rotating shaft bracket 4, driving the thermal film bracket 2 and the thermal film 1 to move toward the rubber roller 10.

[0026] In this embodiment, when the rocker arm 7 is not subjected to external force, the reset spring 5 drives the power arm 8 to reset, so as to cause the thermal sheet 1 to separate from the rubber roller 10 .

[0027] In this embodiment, the shaft bracket 4 includes a support, the support has a first connection part and a second connection part, the first shaft 9 is rotatably connected to the first connection part of the support through a bearing, and the second shaft 3 is rotatably connected to the second connection part of the support through a bearing.

[0028] It can be seen that the structure provided by the present invention attaches the thermal sheet 1 to the cross universal joint, and the balance can be automatically adjusted when the thermal sheet 1, thermal printing paper and rubber roller 10 are attached by means of the cross universal joint, so as to achieve the purpose of overall uniform distribution of pressure, thereby solving the problem of poor printing caused by uneven pressure.

[0029] Therefore, when the thermal printing paper is fed into the rubber roller 10 and the thermal film 1 for printing, the present invention can ensure uniform pressure between the two, ensure uniform printing effect of the printed font thickness, effectively reduce the waste of printing paper, and thus improve the product yield.

[0030] An embodiment of a method for using a pressing structure of a thermal printer:

[0031] A method for using a pressing structure of a thermal printer is applied to the pressing structure of the thermal printer. The method of the present invention comprises the following steps: when the thermal printer is printing, a thermal sheet 1 is attached to one end of a cross universal joint, and a printing channel is formed between the thermal sheet 1 and a rubber roller 10. When a rocker arm 7 is rotated by an external force, a tension spring 6 is stretched and deformed to generate tension, and the tension is transmitted to a rotating shaft bracket 4 of the cross universal joint through a power arm 8, so that the rotating shaft bracket 4 rotates around a first rotating shaft 9. When relative pressure is generated between the thermal sheet 1 and the rubber roller 10, the thermal sheet bracket 2 is rotated around a second rotating shaft 3, so that the thermal sheet 1 moves toward the rubber roller 10. During pressing, the balance is adjusted by the thermal sheet bracket 2, so that the pressure between the thermal sheet 1 and the rubber roller 10 reaches a uniform stress state.

[0032] In this embodiment, when the external force of the rocker arm 7 disappears, the power arm 8 is driven by the reset spring 5 to return to the starting position, so that the thermal sheet 1 is separated from the rubber roller 10, and the thermal printing paper can be taken out / put in.

[0033] In practical applications, when the thermal sheet 1 is in contact with the rubber roller 10, the second rotating shaft 3 can keep the surface of the thermal sheet 1 parallel to the surface of the rubber roller 10 at all times. When the pressure generated by the swing of the power arm 8 acts on the middle position of the thermal sheet holder 2 in a direction that is always perpendicular to the thermal sheet holder 2, at this time, since the contact planes of the thermal sheet 1 and the rubber roller 10 are always parallel, the pressure generated by the two is also always evenly distributed on the contact surfaces of the two.

[0034] It can be seen that the method of the present invention attaches the thermal sheet 1 to the cross universal joint, and the balance can be automatically adjusted when the thermal sheet 1, thermal printing paper and rubber roller 10 are attached by means of the cross universal joint, so as to achieve the purpose of overall uniform distribution of pressure, thereby solving the problem of poor printing caused by uneven pressure.

[0035] Therefore, when the thermal printing paper is fed into the rubber roller 10 and the thermal film 1 for printing, the present invention can ensure uniform pressure between the two, ensure uniform printing effect of the printed font thickness, effectively reduce the waste of printing paper, and thus improve the product yield.

[0036] The basic principles of the present disclosure are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present disclosure are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present disclosure. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, and are not limitations. The above details do not limit the present disclosure to the necessity of adopting the above specific details to be implemented.

[0037] The block diagrams of the devices, apparatuses, equipment, and systems involved in this disclosure are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including," "comprising," "having," and the like are open words, referring to "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or," and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0038] It should be noted that the above are only preferred embodiments of the present invention, but the design concept of the invention is not limited thereto, and any non-substantial modifications made to the present invention using this concept also fall within the protection scope of the present invention.

Claims

1. A thermal printer pressing structure, characterized in that: include: A rocker arm, a tension spring, a power arm, a thermal sheet, a rubber roller, and a reset spring. The end of the rocker arm is connected to one end of the tension spring, the other end of the tension spring is connected to the front end of the power arm, the lower end of the power arm is connected to the reset spring for reset, the rear end of the power arm is connected to a cross universal joint, and the thermal sheet is attached to one end of the cross universal joint; A printing channel is formed between the thermal sheet and the rubber roller, and the rocker arm applies force between the thermal sheet and the rubber roller through the tension spring, the power arm, and the cross universal joint, so as to cause the thermal sheet to move toward or away from the rubber roller; The cross universal joint comprises a rotating shaft bracket, a first rotating shaft mounted on the rotating shaft bracket, a second rotating shaft, and the rear end of the power arm is hinged on the rotating shaft bracket through the first rotating shaft, a thermal sheet bracket is sleeved on the second rotating shaft, and the thermal sheet is attached to the thermal sheet bracket; wherein the first rotating shaft and the second rotating shaft are perpendicular to each other; The rotating shaft bracket includes a support, the support has a first connecting portion and a second connecting portion, the first rotating shaft is rotatably connected to the first connecting portion of the support through a bearing, and the second rotating shaft is rotatably connected to the second connecting portion of the support through a bearing; Use the laminated structure of thermal printers, including: When the thermal printer is printing, the thermal sheet is attached to one end of the cross universal joint, and a printing channel is formed between the thermal sheet and the rubber roller. When the rocker arm is rotated by an external force, the tension spring is stretched and deformed to generate tension, and the tension is transmitted to the rotating shaft bracket of the cross universal joint through the power arm, so that the rotating shaft bracket rotates around the first rotating shaft. When relative pressure is generated between the thermal sheet and the rubber roller, the thermal sheet bracket rotates around the second rotating shaft, so that the thermal sheet moves toward the rubber roller. When pressing, the balance is adjusted by the thermal sheet bracket, so that the pressure between the thermal sheet and the rubber roller reaches a uniform stress state; Among them, when the thermal sheet is in contact with the rubber roller, the second rotating shaft can keep the surface of the thermal sheet parallel to the surface of the rubber roller at all times. When the pressure generated by the swing of the power arm acts on the middle position of the thermal sheet holder in a direction that is always perpendicular to the thermal sheet holder, at this time, since the contact planes of the thermal sheet and the rubber roller always remain parallel, the pressure generated by the two is also always evenly distributed on the contact surfaces of the two.

2. The pressing structure according to claim 1, characterized in that: When the rocker arm is rotated by an external force, the tension spring is pulled to stretch and deform to generate tension, and the tension spring acts on the power arm. The power arm applies contact stress to the rotating shaft bracket, driving the thermal sheet bracket and the thermal sheet to move toward the rubber roller.

3. The pressing structure according to claim 2, characterized in that: When the rocker arm is not subjected to external force, the reset spring drives the power arm to reset, so that the thermal sheet is separated from the rubber roller, and the thermal printing paper can be taken out / put in.

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