A carbon ribbon installation structure

Abstract

The present invention relates to the technical field of thermal transfer printers, and discloses a carbon ribbon installation structure, which is used to install a carbon ribbon unit, wherein the carbon ribbon unit includes a driving wheel, a driven wheel, and a carbon ribbon connecting the driving wheel and the driven wheel, and the carbon ribbon installation structure includes two first installation positions, a slideway, and a clamping unit, wherein the two first installation positions are respectively used to install the driving wheel and the driven wheel and limit the radial movement of the driving wheel and the driven wheel; the slideway is connected to the first installation position, and is used for the driving wheel and the driven wheel to slide radially upward; the clamping unit is used to limit the axial movement of the driving wheel and the driven wheel. The structure of the present invention can ensure the stability of the driving wheel and the driven wheel, and can quickly disassemble and install the driving wheel and the driven wheel, so as to facilitate replacement.

Description

Technical Field

[0001] The invention relates to the technical field of thermal transfer printers, and in particular to a carbon ribbon installation structure. Background Art

[0002] The carbon ribbon printing device uses thermal transfer technology. Thermal transfer technology uses a special carbon ribbon to transfer the toner coating on the carbon ribbon to paper or other types of materials by heating. The coating material on the carbon ribbon can be selected according to needs to produce strong adhesion to ensure that the printed words are not affected by the outside world.

[0003] The existing carbon ribbon printing device includes a carbon ribbon installation structure and a printing module, and the carbon powder on the carbon ribbon is transferred to the printed object (such as a tissue box or a glass slide) by heating the thermistor in the printing module. The carbon ribbon installation structure is used to install the carbon ribbon unit, and the printing module includes a print head and a driving structure for driving the print head to move; however, the characters printed by the existing carbon ribbon printing device are blurred or tilted, and the printing effect is poor; and when the carbon ribbon is used up and needs to be replaced, it is difficult to remove and replace the driving wheel and the driven wheel, which is not easy to operate, and the replacement efficiency is greatly reduced. Summary of the invention

[0004] The purpose of the present invention is to provide a carbon ribbon installation structure, which can ensure the stability of the driving wheel and the driven wheel, and can quickly disassemble and install the driving wheel and the driven wheel, so as to facilitate replacement.

[0005] In order to solve the above technical problems, the present invention provides a carbon ribbon installation structure, which is used to install a carbon ribbon unit, the carbon ribbon unit includes a driving wheel, a driven wheel and a carbon ribbon connecting the driving wheel and the driven wheel, the carbon ribbon installation structure includes: two first installation positions, a slideway and a clamping unit, the two first installation positions are respectively used to install the driving wheel and the driven wheel and limit the radial movement of the driving wheel and the driven wheel; the slideway is connected to the first installation position, and is used for the driving wheel and the driven wheel to slide radially upward; the clamping unit is used to limit the axial movement of the driving wheel and the driven wheel.

[0006] Preferably, the carbon ribbon installation structure further comprises a mounting frame for opening the first installation position, and the pressing unit is installed on the mounting frame.

[0007] Preferably, the clamping unit includes a clamping plate and a screw, the clamping plate is close to the mounting frame and abuts against the wheel core end faces of the driving wheel and the driven wheel, one end of the screw passes through the clamping plate and is connected to the mounting frame, so that the clamping plate is always close to the mounting frame to limit the axial movement of the driving wheel and the driven wheel.

[0008] Preferably, the clamping unit further comprises a return spring for limiting the movement of the clamping plate, the return spring is sleeved on the screw, and one end of the return spring abuts against the clamping plate, and the other end abuts against the nut of the screw.

[0009] Preferably, two guide plates extending from the top surface of the clamping plate are gradually away from the mounting frame, and the two guide plates are respectively arranged corresponding to the two first mounting positions.

[0010] Preferably, the slideway is provided on the mounting frame, one end of the slideway extends to the top surface of the mounting frame, and the other end thereof is connected to the first mounting position.

[0011] Preferably, the mounting frame includes a first mounting plate, a second mounting plate arranged corresponding to the first mounting plate, and a guide shaft connecting the first mounting plate and the second mounting plate, and the guide shaft is used to support the carbon ribbon.

[0012] Preferably, a limiting plate is provided on one side of the first mounting plate close to the second mounting plate, a second mounting position corresponding to the first mounting position is opened on the limiting plate, and one end of the wheel core of the driving wheel and the driven wheel is installed on the second mounting position.

[0013] Preferably, the carbon ribbon installation structure further includes a handle, and the handle is installed on the installation frame.

[0014] Preferably, a guide surface is provided on the end surface of the wheel core of the driving wheel and the driven wheel at one end away from the pressing unit.

[0015] The present invention has the following beneficial effects:

[0016] (1) The carbon ribbon installation structure of the present invention is provided with a first installation position for installing a driving wheel and a driven wheel, and the first installation position limits the radial movement of the driving wheel and the driven wheel, but the first installation position is connected to a slideway for the driving wheel and the driven wheel to move radially upward, and the axial movement of the driving wheel and the driven wheel is limited by a clamping unit, so that the driving wheel and the driven wheel can only move radially along the slideway, which can ensure the stability of the driving wheel and the driven wheel during use and ensure the printing effect, and when removing the driving wheel or the driven wheel, it is only necessary to lift the driving wheel or the driven wheel along the slideway. Similarly, when installing the driving wheel or the driven wheel, it is only necessary to align the driving wheel and the driven wheel with the slideway for installation. The whole process is simple and convenient, and replacement and maintenance are quick.

[0017] (2) The carbon ribbon installation structure of the present invention is provided with a clamping unit, which can not only be used in conjunction with the first installation position, but also prevent the driving wheel and the driven wheel from axially moving, thereby avoiding the carbon ribbon from shifting after long-term use, thereby ensuring clear and neat printing and good printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of a carbon ribbon installation structure provided by an embodiment of the present invention;

[0019] Figure 2 is a structural schematic diagram of another angle of the carbon ribbon installation structure provided by an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of the internal structure of a carbon ribbon installation structure provided by an embodiment of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a compression unit provided in an embodiment of the present invention.

[0022] Figure numerals: 1. first mounting position; 2. slideway; 3. clamping unit; 31. clamping plate; 311. guide plate; 32. screw; 33. return spring; 4. mounting frame; 41. first mounting plate; 42. second mounting plate; 43. guide shaft; 44. through hole; 5. ribbon unit; 51. driving wheel; 52. driven wheel; 53. ribbon; 6. limit plate; 61. second mounting position; 7. handle; 8. guide surface. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] See also Figures 1 to 3 A preferred embodiment of the present invention provides a carbon ribbon installation structure, which is used to install a carbon ribbon unit 5, wherein the carbon ribbon unit 5 includes a driving wheel 51, a driven wheel 52, and a carbon ribbon 53 connecting the driving wheel 51 and the driven wheel 52, and the carbon ribbon installation structure includes: two first installation positions 1, a slideway 2, and a clamping unit 3, wherein the two first installation positions 1 are respectively used to install the driving wheel 51 and the driven wheel 52 and limit the radial movement of the driving wheel 51 and the driven wheel 52; the slideway 2 is connected to the first installation position 1, and is used for the driving wheel 51 and the driven wheel 52 to slide radially upward; the clamping unit 3 is used to limit the axial movement of the driving wheel 51 and the driven wheel 52.

[0027] It should be noted that both the driving wheel 51 and the driven wheel 52 have a wheel core, and the wheel core is hollow. The driving wheel 51 and the driven wheel 52 are installed on the first installation position 1 through the wheel core.

[0028] See also Figure 1 In some embodiments of the present invention, the ribbon installation structure further includes a mounting frame 4 for opening the first installation position 1, and the pressing unit 3 is installed on the mounting frame 4. Specifically, the use of the mounting frame 4 can reduce the weight of the entire ribbon installation structure, facilitate movement, reduce the burden on operators, and improve efficiency.

[0029] See also Figure 4 In some embodiments of the present invention, the clamping unit 3 includes a clamping plate 31 and a screw 32. The clamping plate 31 is pressed against the mounting frame 4 and abuts against the wheel core end faces of the driving wheel 51 and the driven wheel 52. One end of the screw 32 passes through the clamping plate 31 and is connected to the mounting frame 4, so that the clamping plate 31 is always pressed against the mounting frame 4 to limit the axial movement of the driving wheel 51 and the driven wheel 52. Specifically, the clamping plate 31 is pressed against the end faces of one end of the wheel core of the driving wheel 51 and the driven wheel 52, and the clamping plate 31 is installed on the first mounting plate 41 by the screw 32, so that the clamping plate 31 is pressed against the wheel core of the driving wheel 51 and the driven wheel 52, so as to avoid axial displacement of the driving wheel 51 and the driven wheel 52, and ensure the stability of the driving wheel 51 and the driven wheel 52.

[0030] See also Figure 4 In some embodiments of the present invention, the clamping unit 3 further includes a reset spring 33 for limiting the movement of the clamping plate. The reset spring 33 is sleeved on the screw 32, and one end of the reset spring 33 abuts against the clamping plate 31, and the other end abuts against the nut of the screw 32. Specifically, when replacing the driving wheel 51 or the driven wheel 52, the driving wheel 51 or the driven wheel 52 can be extracted with one hand, and the clamping plate 31 can be pulled outward with the other hand, so that the clamping plate 31 slides outward along the screw 32, and the reset spring 33 is compressed at the same time. After the driving wheel 51 or the driven wheel 52 is replaced, the clamping plate 31 is loosened, and the clamping plate 31 is re-compressed by the reset spring 33.

[0031] In some embodiments of the present invention, two guide plates 311 gradually away from the mounting frame 4 are extended from the top surface of the clamping plate 31, and the two guide plates 311 are respectively arranged corresponding to the two first mounting positions 1. Specifically, when the driving wheel 51 or the driven wheel 52 is placed in the first mounting position 1, the driving wheel 51 and the driven wheel 52 can be directly guided to the first mounting position 1 by the guiding effect of the guide plate 311, without the need to accurately align with the first mounting position 1, which greatly saves the time of replacing the driving wheel 51 and the driven wheel 52.

[0032] See also Figure 1 In some embodiments of the present invention, the slideway 2 is opened on the mounting frame 4, one end of the slideway 2 extends to the top surface of the mounting frame 4, and the other end thereof is connected to the first mounting position 1.

[0033] See also Figure 1 and Figure 2 In some embodiments of the present invention, the mounting frame 4 includes a first mounting plate 41, a second mounting plate 42 corresponding to the first mounting plate 41, and a guide shaft 43 connecting the first mounting plate 41 and the second mounting plate 42, and the guide shaft 43 is used to support the carbon ribbon 53. Specifically, the first mounting plate 41 and the second mounting plate 42 are arranged in parallel, and two arc-shaped grooves are respectively provided on the first mounting plate 41 and the second mounting plate 42, and the arc-shaped groove on the first mounting plate 41 and the corresponding arc-shaped groove on the second mounting plate 42 are combined into the first mounting position 1, wherein one end of the wheel core of the driving wheel 51 / driven wheel 52 is installed on the arc-shaped groove on the first mounting plate 41, and the other end is installed on the corresponding arc-shaped groove on the second mounting plate 42, and the arc-shaped groove semi-surrounds the wheel core of the driving wheel 51 / driven wheel 52 to limit its radial movement, but the arc-shaped groove extends upward with a slideway 2, and the slideway 2 can allow the driving wheel 51 / driven wheel 52 to slide radially upward, so you only need to lift the driving wheel 51 / driven wheel 52 to remove it.

[0034] See also Figure 3 In some embodiments of the present invention, a limiting plate 6 is provided on one side of the first mounting plate 41 close to the second mounting plate 42, and a second mounting position 61 corresponding to the first mounting position 1 is provided on the limiting plate 6, and one end of the wheel core of the driving wheel 51 and the driven wheel 52 is installed on the second mounting position 61. Specifically, the limiting plate 6 is installed on the inner side of the second mounting plate 42, and the limiting plate 6 can ensure that the distance between the first mounting plate 41 and the second mounting plate 42 is greater than the width of the carbon ribbon 53, so as to avoid the carbon ribbon 53 rubbing against the first mounting plate 41 and the second mounting plate 42, and further prevent the driving wheel 51 or the driven wheel 52 from shifting in the axial direction, so as to ensure the stability of the driving wheel 51 and the driven wheel 52; the second mounting position 61 on the limiting plate 6 can replace the first mounting position 1 for the wheel core installation of the driving wheel 51 and the driven wheel 52

[0035] See also Figure 1 In some embodiments of the present invention, the ribbon installation structure further includes a handle 7, and the handle 7 is installed on the mounting frame 4. Specifically, the handle 7 can facilitate the movement of the ribbon installation structure.

[0036] See also Figure 1 In some embodiments of the present invention, a guide surface 8 is provided on the end surface of the wheel core of the driving wheel 51 and the driven wheel 52 away from the pressing unit 3.

[0037] See also Figure 1 and Figure 2 In some embodiments of the present invention, a plurality of through holes 44 are respectively provided on the first mounting plate 41 and the second mounting plate 42. Specifically, because the ribbon mounting structure needs to be movable, it is necessary to ensure that its weight is appropriate. By providing through holes 44 on the first mounting plate 41 and the second mounting plate 42, its weight can be reduced.

[0038] In some embodiments of the present invention, the number of the limiting plate 6 is one. Specifically, by opening two second mounting positions 61 through one limiting plate 6, and aligning the two second mounting positions 61 with the first mounting position 1, it can be ensured that the distance between the first mounting plate 41 and the second mounting plate 42 is greater than the width of the carbon ribbon 53, so as to prevent the carbon ribbon 53 from rubbing against the first mounting plate 41 and the second mounting plate 42, and further prevent the driving wheel 51 or the driven wheel 52 from deviating in the axial direction, so as to ensure the stability of the driving wheel 51 and the driven wheel 52.

[0039] See also Figure 3In some embodiments of the present invention, the number of the limiting plates 6 is two, and each limiting plate 6 is provided with a second mounting position 61. Specifically, by providing two limiting plates 6 corresponding to the two first mounting positions 1, it is possible to ensure that the distance between the first mounting plate 41 and the second mounting plate 42 is greater than the width of the carbon ribbon 53, thereby preventing the carbon ribbon 53 from rubbing against the first mounting plate 41 and the second mounting plate 42, and further preventing the driving wheel 51 or the driven wheel 52 from deviating in the axial direction, thereby ensuring the stability of the driving wheel 51 and the driven wheel 52.

[0040] It is worth noting that the thickness of the limiting plate 6 can be determined according to the width of the carbon ribbon 53 , and limiting plates 6 of different thicknesses can also ensure the distance between the wide carbon ribbon 53 and the first mounting plate 41 .

[0041] The working process of the present invention is as follows: when the printing device is working normally, the driving wheel 51 and the driven wheel 52 rotate normally, the first mounting position 1 limits the radial movement of the driving wheel 51 and the driven wheel 52, and the clamping unit 3 limits the axial movement of the driving wheel 51 and the driven wheel 52, so as to ensure the stability of the driving wheel 51 and the driven wheel 52 when the printing device is working normally, thereby ensuring the stability of the carbon ribbon 53 and the printing effect; when the driving wheel 51 and the driven wheel 52 need to be replaced, the operator pulls the clamping plate 31 outward with one hand and lifts the driving wheel 51 or the driven wheel 52 with the other hand, and the driving wheel 51 or the driven wheel 52 slides upward along the slideway 2 and finally leaves the carbon ribbon mounting structure, and then slides the new driving wheel 51 or the driven wheel 52 in from the slide and installs it on the first mounting position 1, releases the clamping plate 31, and completes the replacement of the driving wheel 51 or the driven wheel 52.

[0042] In summary, the preferred embodiment of the present invention provides a carbon ribbon installation structure, which, compared with the prior art:

[0043] (1) The carbon ribbon installation structure of the present invention is provided with a first installation position 1 for installing a driving wheel 51 and a driven wheel 52. The first installation position 1 limits the radial movement of the driving wheel 51 and the driven wheel 52. However, the first installation position 1 is connected to a slideway 2 for the driving wheel 51 and the driven wheel 52 to move radially upward, and the axial movement of the driving wheel 51 and the driven wheel 52 is limited by the clamping unit 3, so that the driving wheel 51 and the driven wheel 52 can only move radially along the slideway 2. This can ensure the stability of the driving wheel 51 and the driven wheel 52 during use and ensure the printing effect. When removing the driving wheel 51 or the driven wheel 52, it is only necessary to lift the driving wheel 51 or the driven wheel 52 along the direction of the slideway 2. Similarly, when installing the driving wheel 51 or the driven wheel 52, it is only necessary to align the driving wheel 51 and the driven wheel 52 with the slideway 2 for installation. The whole process is simple and convenient, and replacement and maintenance are quick.

[0044] (2) The carbon ribbon installation structure of the present invention is provided with a clamping unit 3, which can not only be used in conjunction with the first installation position 1, but also prevent the driving wheel 51 and the driven wheel 52 from axially moving, thereby avoiding the carbon ribbon 53 from shifting after long-term use, thereby ensuring clear and neat printed characters and good printing effect.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A carbon ribbon installation structure, used for installing a carbon ribbon unit, wherein the carbon ribbon unit comprises a driving wheel, a driven wheel and a carbon ribbon connecting the driving wheel and the driven wheel, characterized in that: The carbon ribbon installation structure comprises: Two first installation positions, the two first installation positions are used to install the driving wheel and the driven wheel respectively and limit the radial movement of the driving wheel and the driven wheel; A slideway, the slideway being connected to the first mounting position and used for the driving wheel and the driven wheel to slide radially upward; A clamping unit, the clamping unit is used to limit the axial movement of the driving wheel and the driven wheel; The carbon ribbon installation structure further comprises a mounting frame for opening the first installation position, and the pressing unit is installed on the mounting frame; The clamping unit includes a clamping plate and a screw. The clamping plate is pressed against the mounting frame and abuts against the wheel core end surfaces of the driving wheel and the driven wheel. One end of the screw passes through the clamping plate and is connected to the mounting frame, so that the clamping plate is always pressed against the mounting frame to limit the axial movement of the driving wheel and the driven wheel. The clamping unit further comprises a return spring for limiting the movement of the clamping plate, wherein the return spring is sleeved on the screw, and one end of the return spring abuts against the clamping plate, and the other end abuts against the nut of the screw; Two guide plates extending from the top surface of the clamping plate and gradually moving away from the mounting frame are provided, and the two guide plates are respectively arranged corresponding to the two first mounting positions; The mounting frame includes a first mounting plate, a second mounting plate corresponding to the first mounting plate, and a guide shaft connecting the first mounting plate and the second mounting plate, wherein the guide shaft is used to support the carbon ribbon; A limiting plate is provided on one side of the first mounting plate close to the second mounting plate, a second mounting position corresponding to the first mounting position is provided on the limiting plate, and one end of the wheel core of the driving wheel and the driven wheel is installed on the second mounting position.

2. The carbon ribbon installation structure according to claim 1, characterized in that: The slideway is arranged on the mounting frame, one end of the slideway extends to the top surface of the mounting frame, and the other end of the slideway is connected to the first mounting position.

3. The carbon ribbon installation structure according to claim 1, characterized in that: The carbon ribbon installation structure also includes a handle, and the handle is installed on the installation frame.

4. The carbon ribbon installation structure according to claim 1, characterized in that: The end surfaces of the wheel cores of the driving wheel and the driven wheel at one end away from the pressing unit are provided with guide surfaces.

Images