Integrated thermal transfer ribbon box assembly

Abstract

The utility model provides an integrated thermal transfer ribbon box assembly, and belongs to the technical field of printers. The integrated thermal transfer ribbon box solves the problem that a thermal transfer ribbon of an existing integrated thermal transfer ribbon box of a printer is inconvenient to replace. The integrated thermal transfer ribbon box assembly comprises a printing channel and a box body, a printing paper roller located on one side of the printing channel is rotationally arranged in the box body, a paper tape led out by the printing paper roller extends out of the printing channel, and a thermal transfer ribbon roller located on one side of the printing channel and a recovery roller located on the other side of the printing channel are rotationally arranged on the outer side of the box body. A thermal transfer ribbon led out by the thermal transfer ribbon roller is wound on the recovery roller, the box body is provided with a first cover body and a second cover body which can be opened and closed, the first cover body covers the recovery roller, the second cover body covers the thermal transfer ribbon roller, and the first cover body is provided with a thermal transfer ribbon guide part which is used for tensioning the thermal transfer ribbon to the printing channel when the thermal transfer ribbon guide part is closed. Due to the arrangement of the first cover body and the second cover body, the thermal transfer ribbon can be conveniently installed and replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of printers and relates to an integrated carbon ribbon box component. Background Art

[0002] A label printer is a device that prints information on a label. When printing, the print head is pressed against the print roller, and the label and the carbon ribbon pass between the print head and the print roller. The movement drives the print roller to rotate to achieve the printing process. The carbon ribbon and print paper roll of the existing label printer are independent consumables. Since independent carbon ribbon and print paper are required, the existing printer is difficult to assemble and has a large size.

[0003] To this end, a Chinese patent discloses a thermal transfer printer mechanism and a printer [application publication number is CN114851717A]. When the ribbon transmission gear moves, the recovery shaft power rod is driven to rotate through the anti-rotation structure. The recovery shaft power rod drives the recovery shaft damping torsion spring in the middle to rotate through the tight-fitting friction force. The recovery shaft damping torsion spring drives the ribbon recovery shaft to rotate through the pin and the damping spring on the ribbon recovery shaft, generating power for the ribbon to move forward. When the rotation speed of the ribbon transmission gear is too fast, the force generated by the ribbon recovery shaft on the recovery shaft damping torsion spring pin will increase, causing the inner diameter of the recovery shaft damping torsion spring to increase. When the generated force exceeds the damping value, the recovery shaft damping torsion spring and the recovery shaft power rod generate relative movement, so that the force on the ribbon recovery shaft does not exceed the limit value at all times, thereby preventing the ribbon from being subjected to excessive force.

[0004] The ribbon cassette is a consumable material for the printer, and the cost of the ribbon cassette directly affects the printing cost. The above components such as the recovery shaft power rod, recovery shaft resistance spring, and pressure spring that play a role in slipping are installed in the ribbon cassette, which increases the cost of the ribbon cassette and leads to high printing costs; the ribbon needs to be wound when assembling the ribbon cassette, which is complicated to operate; after assembly, it is inconvenient to replace the ribbon shaft separately, which further increases the printing cost. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes an integrated carbon ribbon box assembly which is convenient for replacing carbon ribbons.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An integrated carbon ribbon box assembly includes a printing channel and a box body, wherein a printing paper roller located on one side of the printing channel is rotatably provided in the box body, and a paper tape led out of the printing paper roller extends out of the printing channel, and a carbon ribbon roller located on one side of the printing channel and a recovery roller located on the other side of the printing channel are rotatably provided on the outer side of the box body, and the carbon ribbon led out of the carbon ribbon roller is wound on the recovery roller, and a first cover body and a second cover body that can be opened and closed are provided on the box body, the first cover body covers the recovery roller, and the second cover body covers the carbon ribbon roller, and the first cover body is provided with a carbon ribbon guide portion for tensioning the carbon ribbon to the printing channel when the cover is closed.

[0008] The printing paper roller, carbon ribbon roller and recovery roller are arranged parallel to each other. Since the carbon ribbon roller and the recovery roller are arranged on the outside of the box body, and the carbon ribbon roller is covered by the openable and closable second cover body, and the recovery roller is covered by the openable and closable first cover body, the installation and replacement of the carbon ribbon are convenient. At the same time, a carbon ribbon guide part is provided on the first cover body. When the cover is closed, the carbon ribbon can be tensioned to the printing channel without winding the ribbon, thereby improving the assembly efficiency.

[0009] In the above-mentioned integrated carbon ribbon box assembly, the first cover body is rotatably arranged on the box body through the first rotating shaft, the box body is provided with a first arc groove, the first cover body is provided with a second arc groove, when the first cover body is closed, the first arc groove and the second arc groove constitute a first mounting hole, the recovery roller is rotatably fitted in the first mounting hole, the carbon ribbon guide part is arranged at one end of the first cover body away from the first rotating shaft, and the box body is provided with a first elastic buckle for buckling the carbon ribbon guide part when the first cover body is closed.

[0010] During installation, the ribbon guide is separated from the restriction of the first elastic buckle, the first cover is opened, and then the recovery roller is placed in the first arc groove, and the first cover is closed, so that the recovery roller rotates and fits in the first installation hole. A clearance space is formed in the middle of the first installation hole to provide space for winding the ribbon, and an axial limit stop is provided, through which the axial movement of the recovery roller can be limited. After the first cover is closed, a first ribbon port for the ribbon to pass through is provided between the ribbon guide and the box body.

[0011] In the above-mentioned integrated carbon ribbon box assembly, a gear is coaxially provided at one end of the recovery roller, a limiting hole is provided in the gear, the inner wall of the limiting hole has a plurality of circumferentially distributed limiting grooves, and an elastic claw that is engaged in the limiting groove is provided on the box body.

[0012] The gear is used to mesh with the driving gear on the printer to drive the recycling roller to rotate in the circumferential direction. When the ribbon cartridge is not installed on the printer, the elastic claw is inserted into the limit groove to limit the circumferential rotation of the recycling roller and prevent the ribbon from loosening. When the ribbon cartridge is placed in the printer, the printer is provided with a structure for loosening the elastic claw, so that the elastic claw is disengaged from the limit groove, thereby disengaging from the circumferential limit on the recycling roller.

[0013] In the above-mentioned integrated carbon ribbon box assembly, the second cover body is rotatably arranged on the box body through the second rotating shaft, the box body is provided with a third arc groove, and the second cover body is provided with a fourth arc groove. When the second cover body is closed, the third arc groove and the fourth arc groove constitute a second mounting hole, the carbon ribbon roller is rotatably fitted in the second mounting hole, and the box body is provided with a second elastic buckle for buckling the second cover body when the second cover body is closed.

[0014] During installation, the second cover is separated from the restriction of the second elastic buckle, the second cover is opened, and then the carbon ribbon roller is placed in the third arc groove, and the second cover is closed so that the carbon ribbon roller rotates and fits in the second mounting hole. A clearance space is formed in the middle of the second mounting hole to provide space for the carbon ribbon, and an axial limit stop is provided, through which the axial movement of the carbon ribbon roller can be limited. After the second cover is closed, a second carbon ribbon port for the carbon ribbon to pass through is provided between the free end of the second cover and the box body. After installation, the carbon ribbon led out from the carbon ribbon roller is wound onto the recovery roller through the second carbon ribbon port and the first carbon ribbon port.

[0015] In the above-mentioned integrated carbon ribbon box assembly, the carbon ribbon roller has a coaxially arranged first step hole and a second step hole located at the outer end of the first step hole, the aperture of the second step hole is larger than the aperture of the first step hole, and a damping spring is tightly fitted in the first step hole, and the other end of the damping spring passes through the second step hole and is connected to the box body.

[0016] The ribbon shaft rotates under the traction of the ribbon, causing the damping spring to twist. When the twisting force is greater than the friction between the resistance spring and the first step hole, the twisted damping spring rotates with the ribbon shaft. When the recycling roller stops, the ribbon shaft stops, and the damping spring resets, pulling the ribbon back in a small range and tightening the ribbon.

[0017] In the above integrated ribbon cartridge assembly, a guide plate extending to the printing channel is provided on the cartridge body, the paper tape drawn from the printing paper roller is located on one side of the guide plate, and the ribbon drawn from the ribbon roller is located on the other side of the guide plate, so as to avoid premature contact between the ribbon and the paper tape.

[0018] In the above integrated carbon ribbon box assembly, the box body includes a left half shell and a right half shell that are interlocked, a left half shaft is provided in the left half shell, a right half shaft is provided in the right half shell, one end of the printing paper roller is sleeved on the left half shaft, and the other end is sleeved on the right half shaft. It is convenient to install the printing paper roller, the first cover body and the second cover body on the box body.

[0019] Compared with the prior art, the integrated carbon ribbon box assembly has the following advantages:

[0020] Since the carbon ribbon roller and the recovery roller are arranged on the outside of the box body, and a first cover body and a second cover body that can be opened and closed are provided, the carbon ribbon can be installed and replaced conveniently; a carbon ribbon guide portion is provided on the first cover body, and the carbon ribbon can be tensioned to the printing channel when the cover is closed, and there is no need to wind the ribbon, thereby improving assembly efficiency; a damping spring is provided in the carbon ribbon shaft to keep the carbon ribbon straightened at all times, and when the recovery roller stops rotating, the carbon ribbon shaft stops rotating, and the damping spring pulls the carbon ribbon back in a small range. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the integrated carbon ribbon box assembly when the cover is opened.

[0022] Figure 2 It is a structural schematic diagram of the integrated carbon ribbon box assembly when it is in a closed state.

[0023] Figure 3 It is a cross-sectional view of the integrated carbon ribbon cassette assembly in the closed state.

[0024] Figure 4 This is a cross-sectional view of the integrated carbon ribbon cassette assembly with the cover opened.

[0025] Figure 5 This is a cross-sectional view of the integrated carbon ribbon cartridge assembly passing through the recovery roller.

[0026] Figure 6 This is a cross-sectional view of the integrated carbon ribbon cassette assembly passing through the carbon ribbon roller.

[0027] Figure 7 This is a cross-sectional view of the integrated ribbon cassette assembly passing through the ribbon roller and omitting the damping spring.

[0028] In the figure, 1. box body; 10. printing channel; 11. first elastic buckle; 12. elastic claw; 13. second elastic buckle; 14. guide plate; 2. printing paper roller; 3. carbon ribbon roller; 31. first stepped hole; 32. second stepped hole; 4. recovery roller; 41. gear; 42. limit groove; 5. first cover body; 51. carbon ribbon guide; 6. second cover body; 7. damping spring. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] like Figure 1 and Figure 2The integrated carbon ribbon cartridge assembly shown includes a printing channel 10 and a cartridge body 1. When the carbon ribbon cartridge is installed on the printer, the print head and the printing rubber roller on the printer are located in the printing channel 10. The cartridge body 1 includes a left half shell and a right half shell that are interlocked. A left half shaft is provided in the left half shell, and a right half shaft is provided in the right half shell. A printing paper roller 2 located on one side of the printing channel 10 is rotatably provided in the cartridge body 1. One end of the printing paper roller 2 is sleeved on the left half shaft, and the other end is sleeved on the right half shaft. The paper tape drawn from the printing paper roller 2 extends out of the printing channel 10.

[0031] like Figure 1-4 As shown, a ribbon roller 3 located on one side of the printing channel 10 and a recovery roller 4 located on the other side of the printing channel 10 are rotatably provided on the outer side of the box body 1, and the ribbon led out from the ribbon roller 3 is wound around the recovery roller 4. A first cover body 5 and a second cover body 6 that can be opened and closed are provided on the box body 1. The first cover body 5 covers the recovery roller 4, and the second cover body 6 covers the ribbon roller 3. The first cover body 5 is provided with a ribbon guide portion 51 for tensioning the ribbon to the printing channel 10 when the cover is closed.

[0032] The printing paper roller 2, the carbon ribbon roller 3 and the recovery roller 4 are arranged parallel to each other. Since the carbon ribbon roller 3 and the recovery roller 4 are arranged on the outside of the box body 1, and the carbon ribbon roller 3 is covered by the openable and closable second cover body 6, and the recovery roller 4 is covered by the openable and closable first cover body 5, it is convenient to install and replace the carbon ribbon. At the same time, a carbon ribbon guide part 51 is provided on the first cover body 5. When the cover is closed, the carbon ribbon can be tensioned to the printing channel 10 without winding the ribbon, thereby improving the assembly efficiency.

[0033] like Figure 1 and Figure 4 As shown, the first cover body 5 is rotatably arranged on the box body 1 through the first rotating shaft, the box body 1 is provided with a first arc groove, and the first cover body 5 is provided with a second arc groove. When the first cover body 5 is closed, the first arc groove and the second arc groove constitute a first mounting hole, and the recovery roller 4 is rotatably fitted in the first mounting hole. The carbon ribbon guide part 51 is arranged at one end of the first cover body 5 away from the first rotating shaft, and the box body 1 is provided with a first elastic buckle 11 for buckling the carbon ribbon guide part 51 when the first cover body 5 is closed.

[0034] During installation, the ribbon guide 51 is separated from the restriction of the first elastic buckle 11, the first cover 5 is opened, and then the recovery roller 4 is placed in the first arc groove, and the first cover 5 is closed, so that the recovery roller 4 is rotated and fitted in the first installation hole. A clearance space is formed in the middle of the first installation hole to provide space for winding the ribbon, and an axial limit stop is provided, through which the axial movement of the recovery roller 4 can be limited. After the first cover 5 is closed, a first ribbon port for the ribbon to pass through is provided between the ribbon guide 51 and the box body 1.

[0035] like Figure 2 and Figure 5As shown, a gear 41 is coaxially provided at one end of the recovery roller 4, a limiting hole is provided in the gear 41, and the inner wall of the limiting hole has a plurality of circumferentially distributed limiting grooves 42, and an elastic claw 12 is provided on the box body 1 to be clamped into the limiting groove 42.

[0036] The gear 41 is used to mesh with the driving gear 41 on the printer, and is used to drive the recovery roller 4 to rotate in the circumferential direction. When the ribbon cartridge is not installed on the printer, the elastic claw 12 is inserted into the limiting groove 42 to limit the circumferential rotation of the recovery roller 4 and prevent the ribbon from loosening. When the ribbon cartridge is placed in the printer, the printer is provided with a structure for loosening the elastic claw 12, so that the elastic claw 12 is disengaged from the limiting groove 42, thereby disengaging from the circumferential limit on the recovery roller 4.

[0037] like Figure 1 and Figure 4 As shown, the second cover body 6 is rotatably arranged on the box body 1 through the second rotating shaft, a third arc groove is arranged on the box body 1, and a fourth arc groove is arranged on the second cover body 6. When the second cover body 6 is closed, the third arc groove and the fourth arc groove constitute a second mounting hole, and the carbon ribbon roller 3 is rotatably fitted in the second mounting hole. The box body 1 is provided with a second elastic buckle 13 for buckling the second cover body 6 when the second cover body 6 is closed.

[0038] During installation, the second cover 6 is separated from the restriction of the second elastic buckle 13, the second cover 6 is opened, and then the carbon ribbon roller 3 is placed in the third arc groove, and the second cover 6 is closed, so that the carbon ribbon roller 3 rotates and fits in the second mounting hole. A clearance space is formed in the middle of the second mounting hole to provide space for the carbon ribbon, and an axial limit stop is provided, through which the axial movement of the carbon ribbon roller 3 can be limited. After the second cover 6 is closed, a second carbon ribbon port for the carbon ribbon to pass through is provided between the free end of the second cover 6 and the box body 1. After installation, the carbon ribbon drawn from the carbon ribbon roller 3 is wound onto the recovery roller 4 through the second carbon ribbon port and the first carbon ribbon port.

[0039] like Figure 7 As shown, the carbon ribbon roller 3 has a coaxially arranged first stepped hole 31 and a second stepped hole 32 located at the outer end of the first stepped hole 31. The aperture of the second stepped hole 32 is larger than the aperture of the first stepped hole 31. Figure 6 As shown, a damping spring 7 is tightly fitted in the first stepped hole 31 , and the other end of the damping spring 7 passes through the second stepped hole 32 and is connected to the box body 1 .

[0040] The ribbon shaft rotates under the pulling action of the ribbon, thereby twisting the damping spring 7. When the twisting force is greater than the friction between the resistance spring and the first stepped hole 31, the twisted damping spring 7 rotates together with the ribbon shaft. When the recycling roller 4 stops rotating, the ribbon shaft stops rotating, and the damping spring 7 is reset at this time, pulling the ribbon back in a small range and tensioning the ribbon.

[0041] like Figure 1-4As shown, a guide plate 14 extending to the printing channel 10 is provided on the box body 1, the paper tape led out by the printing paper roller 2 is located on one side of the guide plate 14, and the carbon ribbon led out by the carbon ribbon roller 3 is located on the other side of the guide plate 14 to avoid premature contact between the carbon ribbon and the paper tape.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An integrated carbon ribbon cartridge assembly, characterized in that: The invention comprises a printing passage (10) and a box body (1), wherein a printing paper roller (2) located at one side of the printing passage (10) is rotatably provided in the box body (1), and a paper tape drawn out from the printing paper roller (2) extends out from the printing passage (10); a carbon ribbon roller (3) located at one side of the printing passage (10) and a recovery roller (4) located at the other side of the printing passage (10) are rotatably provided on the outer side of the box body (1), and the carbon ribbon drawn out from the carbon ribbon roller (3) is wound around the recovery roller (4); and a first cover body (5) and a second cover body (6) which can be opened and closed are provided on the box body (1), wherein the first cover body (5) covers the recovery roller (4), and the second cover body (6) covers the carbon ribbon roller (3); and a carbon ribbon guide part (51) is provided on the first cover body (5) for tensioning the carbon ribbon to the printing passage (10) when the cover is closed.

2. The integrated carbon ribbon cassette assembly according to claim 1, characterized in that: The first cover body (5) is rotatably mounted on the box body (1) via a first rotating shaft, the box body (1) is provided with a first arc groove, the first cover body (5) is provided with a second arc groove, when the first cover body (5) is closed, the first arc groove and the second arc groove form a first mounting hole, the recovery roller (4) is rotatably engaged in the first mounting hole, the carbon ribbon guide portion (51) is arranged at one end of the first cover body (5) away from the first rotating shaft, and the box body (1) is provided with a first elastic buckle (11) for buckling the carbon ribbon guide portion (51) when the first cover body (5) is closed.

3. The integrated carbon ribbon cassette assembly according to claim 1, characterized in that: A gear (41) is coaxially disposed at one end of the recycling roller (4), a limiting hole is disposed in the gear (41), the inner wall of the limiting hole has a plurality of circumferentially distributed limiting grooves (42), and an elastic claw (12) is disposed on the box body (1) and is engaged with the limiting groove (42).

4. The integrated carbon ribbon cassette assembly according to claim 1, characterized in that: The second cover body (6) is rotatably mounted on the box body (1) via a second rotating shaft; a third arc groove is provided on the box body (1); a fourth arc groove is provided on the second cover body (6); when the second cover body (6) is closed, the third arc groove and the fourth arc groove form a second mounting hole; the carbon ribbon roller (3) is rotatably engaged in the second mounting hole; and a second elastic buckle (13) is provided on the box body (1) for buckling the second cover body (6) when the second cover body (6) is closed.

5. The integrated carbon ribbon cassette assembly according to claim 1, characterized in that: The carbon ribbon roller (3) has a first step hole (31) coaxially arranged therein and a second step hole (32) located at the outer end of the first step hole (31); the diameter of the second step hole (32) is larger than the diameter of the first step hole (31); a damping spring (7) is tightly fitted in the first step hole (31); the other end of the damping spring (7) passes through the second step hole (32) and is connected to the box body (1).

6. The integrated carbon ribbon cassette assembly according to claim 1, characterized in that: The box body (1) is provided with a guide plate (14) extending to the printing channel (10); the paper tape led out from the printing paper roller (2) is located on one side of the guide plate (14); and the carbon tape led out from the carbon tape roller (3) is located on the other side of the guide plate (14).

7. The integrated carbon ribbon cassette assembly according to claim 1, characterized in that: The box body (1) comprises a left half shell and a right half shell which are interlocked with each other, a left half shaft is arranged in the left half shell, a right half shaft is arranged in the right half shell, one end of the printing paper roller (2) is sleeved on the left half shaft, and the other end is sleeved on the right half shaft.

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