CN219706496U - Gear transmission system of label printer and reversible label printer - Google Patents
Gear transmission system of label printer and reversible label printer Download PDFInfo
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- CN219706496U CN219706496U CN202122614096.9U CN202122614096U CN219706496U CN 219706496 U CN219706496 U CN 219706496U CN 202122614096 U CN202122614096 U CN 202122614096U CN 219706496 U CN219706496 U CN 219706496U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 230000002441 reversible effect Effects 0.000 title claims abstract description 27
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 112
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 111
- 238000007639 printing Methods 0.000 claims abstract description 40
- 238000004804 winding Methods 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses a gear transmission system of a label printer and the reversible label printer, and belongs to the field of label printers. The gear transmission system comprises a first gear set connected with an output shaft of the motor, a planetary gear set connected with the first gear set, a printing rubber roller gear set connected with the planetary gear set and used for driving label paper to move forwards or backwards, and a carbon belt winding gear and a carbon belt unwinding gear which are selectively connected with the planetary gear set; the planetary gear set comprises a sun gear, a planet wheel and a planet carrier, wherein the sun gear drives the planet wheel to rotate under the drive of the first gear set, and the planet wheel is meshed with the carbon belt winding gear or the carbon belt unwinding gear according to the positive and negative rotation of the sun gear. According to the utility model, the sun wheel is driven by the motor to rotate positively and negatively, so that the planetary wheel is selectively meshed with the carbon tape winding gear and the carbon tape unwinding gear, normal printing of label paper and the carbon tape can be realized, reverse withdrawal can be realized, waste of the label paper and the carbon tape is avoided, and the material utilization rate is improved.
Description
Technical Field
The utility model relates to the field of label printers, in particular to a gear transmission system of a label printer and a reversible label printer.
Background
At present, the thermal transfer label printer is characterized in that a carbon tape advances along one direction along with label paper, namely a paper outlet direction, and the label paper is torn off or cut off after printing. At this time, a certain length of blank label is left between the printed hair line and the cut of the label paper, and the length of blank label is not printed. Meanwhile, the carbon tape which advances along with the blank label is not used, so that label paper and the carbon tape with the length are wasted in the next printing process, the material utilization rate is low, and the cost is high.
It is apparent that the above-mentioned conventional label printer still has inconvenience and drawbacks in structure, method and use, and further improvement is needed. How to create a new gear transmission system of a label printer and a reversible label printer, so that the gear transmission system can realize paper discharge and carbon tape tightening during forward rotation, and can realize paper withdrawal and carbon tape withdrawal during reverse rotation, blank label paper is withdrawn into a label box after one label is printed, and meanwhile, the carbon tape can be withdrawn into the label box smoothly, thereby reducing waste of the label paper and the carbon tape and becoming a target of great need for improvement in the current industry.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a gear transmission system of a label printer, which can realize paper discharge and carbon tape tightening during forward rotation, and can realize paper withdrawal and carbon tape withdrawal during reverse rotation, blank label paper is withdrawn into a label box after one label is printed, and meanwhile, the carbon tape can be withdrawn into the label box smoothly, so that the waste of the label paper and the carbon tape is reduced, and the defects of the conventional label printer are overcome.
In order to solve the technical problems, the utility model provides a gear transmission system of a label printer, which comprises a first gear set, a planetary gear set, a printing rubber roller gear set, a carbon belt winding gear and a carbon belt unwinding gear, wherein the first gear set is in transmission connection with an output shaft of a motor;
the planetary gear set comprises a sun gear, a planetary gear meshed with the sun gear and a planetary carrier connected with the sun gear and the planetary gear, the sun gear drives the planetary gear to rotate under the drive of the first gear set, and under the action of the planetary carrier, the planetary gear is meshed with the carbon tape winding gear or the carbon tape unwinding gear according to the forward rotation or the reverse rotation of the sun gear.
Further improved, the planetary gear set is also provided with an elastic limiting mechanism, and the elastic limiting mechanism is used for enabling the planet wheel to be meshed with the carbon ribbon winding gear in a motor stop state.
Further improved, the elastic limiting mechanism comprises an elastic limiting part and a limiting rod which is in contact with the elastic limiting part, one end of the elastic limiting part is connected with the tail part of the planet carrier, the other end of the elastic limiting part is ejected to the outer side of the planet carrier and forms certain tension with the planet carrier, the limiting rod is fixed on the printer shell, and in the motor stopping state, the elastic limiting part is under the interference of the limiting rod to enable the planet wheel to be meshed with the carbon ribbon winding gear.
Further improved, torsion springs with opposite rotation directions are arranged in the carbon belt winding gear and the carbon belt unwinding gear.
As a further improvement, the utility model also provides a reversible label printer comprising the gear drive system of the label printer.
The label printer comprises a shell, a printing rubber roller, a carbon tape supply roll and a carbon tape winding roll, wherein the printing rubber roller, the carbon tape supply roll and the carbon tape winding roll are arranged in the shell, a gear transmission system is characterized in that a printing rubber roller gear set is connected with the printing rubber roller and used for driving label paper to move, a carbon tape winding gear is connected with the carbon tape winding roll, a carbon tape unwinding gear is connected with the carbon tape unwinding roll, when a motor rotates to one side, a first gear set transmits power to a planetary gear set, and the planetary gear set drives the printing rubber roller and the carbon tape winding roll to rotate, so that paper discharging of label paper and tightening of a carbon tape are realized; when the motor rotates to the opposite side, the first gear set transmits reverse power to the planetary gear set, and the planetary gear set drives the printing rubber roller and the carbon ribbon unreeling roller to rotate, so that paper withdrawal of label paper and recovery of carbon ribbon are realized.
Further improvements, the label printer is used for printing die cut label rolls, continuous label rolls, heat shrink tubing rolls or label strip rolls.
With such a design, the utility model has at least the following advantages:
1. according to the gear transmission system of the label printer, through the arrangement of the planetary gear set, under the action of the sun gear, the planetary gear and the planet carrier, the sun gear is driven to rotate positively and negatively through the motor, so that the planetary gear can be selectively meshed with the carbon tape winding gear and the carbon tape unwinding gear, the positive and negative rotation printing mechanism of the label printer is realized, normal printing and paper output of label paper can be realized, the label paper can be returned to the label box, meanwhile, the carbon tape is recycled to the label box, waste of the label paper and the carbon tape is avoided, and the material utilization rate is improved.
2. And the elastic limiting part is used for promoting the planet wheel to be meshed with the carbon belt winding gear in the stop state of the motor by the aid of interference fit of the elastic limiting part and the limiting rod, so that instantaneity in forward printing is guaranteed.
3. And the torsion springs with opposite rotation directions are arranged in the carbon belt winding gear and the carbon belt unwinding gear, so that the carbon belt can be always kept to have certain tension in the process of forward tightening the carbon belt and reverse withdrawing the carbon belt, and the problem that the carbon belt is wrinkled is solved.
4. The label printer is suitable for die cutting label paper rolls, continuous label paper rolls, printing of materials such as heat shrinkage pipe rolls, marking strip rolls and the like, and has wide application range and good economy.
Drawings
The foregoing is merely an overview of the present utility model, and the present utility model is further described in detail below with reference to the accompanying drawings and detailed description.
Fig. 1 is a schematic diagram of a gear system of a label printer according to the present utility model in which a planet gear is engaged with a carbon ribbon take-up gear.
Fig. 2 is a schematic diagram of the engagement of a planet with a carbon ribbon unwind gear in a gear train of a label printer according to the present utility model.
Fig. 3 is a schematic diagram of the internal structure of a carbon ribbon take-up gear and a carbon ribbon take-off gear in the gear transmission system of the label printer according to the present utility model.
Fig. 4 is a schematic view of the inside of the label printer of the present utility model (in the figure, the gear 1 and the gear 7 are in a non-meshed state for clarity).
Fig. 5 is a top view of the structure inside the label printer of the present utility model (gear 1, gear 2, gear 7 are removed for clarity of illustration).
Fig. 6 is a schematic view of the structure of a winding roller connected to a gear transmission system inside a label printer according to the present utility model.
Detailed Description
The gear transmission system of the label printer comprises a first gear set in transmission connection with an output shaft of a motor, a planetary gear set in transmission connection with the first gear set, a printing rubber roller gear set in transmission connection with the planetary gear set and used for driving label paper to move forwards or backwards, and a carbon tape winding gear and a carbon tape unwinding gear which are in transmission connection with the planetary gear set selectively.
Specifically, referring to fig. 1 and 2, the first gear set includes a first gear 1, where the first gear 1 is a double gear, and an external gear of the double gear is meshed with an output shaft of the motor and is driven to rotate by the external gear of the double gear, and an internal gear of the double gear also rotates along with the external gear of the double gear. Of course, the first gear may also be two gears on the same central shaft, or may be composed of a plurality of gears meshed with each other.
The planetary gear set in this embodiment comprises a sun gear 2 and planet gears 3 in engagement therewith, and a planet carrier 4 connecting the sun gear 2 and the planet gears 3. The planetary gear 3 is rotatably mounted on a carrier 4 and revolves around the sun gear 2. The sun gear 2 is also a duplex gear, an external gear is meshed with an internal gear of the first gear 1, the internal gear is meshed with the planet gear 3, the sun gear 2 drives the planet gear 3 to rotate under the drive of the first gear 1, and the planet gear 3 also rotates around the sun gear 2. The planet wheel 3 can be selectively meshed with the carbon tape winding gear 5 or the carbon tape unwinding gear 6, and when the planet wheel 3 drives the carbon tape winding gear 5 to rotate, the carbon tape unwinding gear 6 is an idler wheel, and the carbon tape winding gear 5 drives the carbon tape to tighten; when the planet wheel 3 drives the carbon ribbon unreeling gear 6 to rotate, the carbon ribbon reeling gear 5 is an idler wheel, and the carbon ribbon unreeling gear 6 drives the carbon ribbon to retract.
The printing rubber roller gear set in the embodiment comprises a gear 7, a gear 8, a gear 9 and a gear 10 which are sequentially meshed, wherein the gear 7 is also a duplex gear, an external gear of the duplex gear is meshed with an external gear of the sun gear 2, and an internal gear of the duplex gear is meshed with the gear 8. The gear 8 is also meshed with the gear 9, and the gear 9 is meshed with the gear 10. The gear 7 can drive the gear 8 to rotate under the drive of the sun gear 2, and then drive the gears 9 and 10 to rotate. On the basis of forward rotation or reverse rotation of the motor, the gear 9 and the gear 10 are beneficial to realizing forward or reverse reversing of the label paper, and are convenient for the forward and reverse reversing of the label paper.
In a preferred embodiment, the planetary gear set is further provided with an elastic limiting mechanism, and the elastic limiting mechanism is used for enabling the planetary gear and the carbon ribbon winding gear to keep a meshed state in a motor stop state, so that the timeliness of carbon ribbon tightening during forward printing is guaranteed.
Specifically, the elastic limiting mechanism comprises an elastic limiting part 11 and a limiting rod 12 which is in contact with the elastic limiting part, one end of the elastic limiting part 11 is connected with the tail of the planet carrier 4, the other end of the elastic limiting part ejects out of the planet carrier 4 and forms a certain tension with the planet carrier 4, the limiting rod 12 is fixed on a printer shell, under the stopping state of the motor, the elastic limiting part 11 promotes the planet wheel 3 and the carbon ribbon winding gear 5 to keep a meshed state under the interference of the limiting rod 12, the starting of the carbon ribbon winding gear 5 can be driven in time, and the instantaneity of carbon ribbon tightening is ensured.
Further, as shown in fig. 3, torsion springs 13 and 14 having opposite rotation directions are provided in the carbon ribbon take-up gear 5 and the carbon ribbon take-off gear 6. The torsion springs 13 and 14 can ensure that the carbon belt can always maintain certain tension in the process of forward tightening the carbon belt and backward withdrawing the carbon belt, so that the carbon belt can not be wrinkled, and the smooth operation of the printer is ensured.
When the gear transmission system is applied to the label printer, the forward rotation and the reverse rotation of the label printer can be realized, and the reversible label printer is formed.
Referring to fig. 4 to 6, the label printer includes a housing 15 and a gear train provided inside the housing 15, and a printing rubber roller 16, a carbon tape supply tape roller 17, and a carbon tape take-up tape roller 18 for connection with the gear train. The printing rubber roller gear set in the gear transmission system is connected with the printing rubber roller 16, and the printing rubber roller 16 realizes the driving of the label paper by virtue of friction force between the printing rubber roller 16 and the label paper 20. The carbon tape winding gear 5 is connected with the carbon tape winding roller 18, the carbon tape unwinding gear 6 is connected with the carbon tape unwinding roller 17, when the motor 19 rotates to one side, the first gear 1 transmits power to the planetary gear set, the planetary gear set drives the printing rubber roller 16 to rotate positively, and meanwhile the carbon tape winding roller 18 is controlled to rotate, so that the forward paper output of the label paper 20 and the forward tightening of the carbon tape 21 are realized. When the motor 19 rotates to the opposite side, the first gear 1 transmits reverse power to the planetary gear set, and the planetary gear set drives the printing rubber roll 16 to rotate reversely, and simultaneously controls the carbon tape unreeling roll 17 to rotate, so that reverse paper withdrawal of the label paper 20 and reverse recovery of the carbon tape 21 are realized. The gear transmission system capable of driving the label printer to reverse is beneficial to backing the unused label paper 20 and the unused carbon tape 21 which exceed the printing hair heating wire, so that the unused label paper 20 and the unused carbon tape 21 are retracted to the front end of the printing head heating wire, the full utilization of the unused label paper 20 and the unused carbon tape 21 is facilitated, and the waste of materials is reduced.
The label printer of the present utility model may be used for printing die cut label paper rolls. Of course, it can also be used for printing of continuous rolls of labels, heat shrink tubing, or rolls of marking strips, etc.
According to the gear transmission system of the label printer, through the arrangement of the meshing relationship among the gears, the gear transmission system can realize forward and reverse rotation of the gears by means of the same motor, and can selectively control the carbon tape winding gear or the carbon tape unwinding gear to rotate as the driving wheel, so that normal printing of label paper can be realized, the label paper can be returned to the label box, and meanwhile, the carbon tape is recycled to the label box, so that waste of the label paper and the carbon tape is avoided, and the material utilization rate is improved.
The label printer is not only suitable for printing media of die-cutting label paper rolls and continuous label paper rolls, but also suitable for printing media of materials such as heat shrinkage pipe rolls, marking strip rolls and the like, and has wide application range and good economy.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "front", "rear", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present utility model.
Claims (7)
1. The gear transmission system of the label printer is characterized by comprising a first gear set, a planetary gear set, a printing rubber roller gear set, a carbon belt winding gear and a carbon belt unwinding gear, wherein the first gear set is in transmission connection with an output shaft of a motor;
the planetary gear set comprises a sun gear, a planetary gear meshed with the sun gear and a planetary carrier connected with the sun gear and the planetary gear, the sun gear drives the planetary gear to rotate under the drive of the first gear set, and under the action of the planetary carrier, the planetary gear is meshed with the carbon tape winding gear or the carbon tape unwinding gear according to the forward rotation or the reverse rotation of the sun gear.
2. The gear train of a label printer of claim 1 wherein the planetary gear set is further provided with an elastic limit mechanism for urging the planet gears into engagement with the carbon tape take-up gear in a motor-off condition.
3. The gear transmission system of a label printer according to claim 2, wherein the elastic limiting mechanism comprises an elastic limiting member and a limiting rod which is abutted against the elastic limiting member, one end of the elastic limiting member is connected with the tail part of the planet carrier, the other end of the elastic limiting member ejects towards the outer side of the planet carrier and forms a certain tension with the planet carrier, the limiting rod is fixed on the printer shell, and in the motor stop state, the elastic limiting member promotes the planet wheel to be meshed with the carbon ribbon winding gear under the interference of the limiting rod.
4. A gear system according to any one of claims 1 to 3, wherein the carbon tape take-up gear and the carbon tape pay-off gear are each internally provided with torsion springs of opposite rotational directions.
5. A reversible label printer comprising a gear train of the label printer of any one of claims 1 to 4.
6. The reversible label printer as claimed in claim 5, wherein the label printer comprises a housing, and a printing rubber roll, a carbon tape supply roll and a carbon tape take-up roll which are arranged in the housing, wherein a gear train of the printing rubber roll is connected with the printing rubber roll and used for driving label paper to move, a carbon tape take-up gear is connected with the carbon tape take-up roll, a carbon tape pay-off gear is connected with the carbon tape pay-off roll, when the motor rotates to one side, the first gear train transmits power to the planetary gear train, and the planetary gear train drives the printing rubber roll and the carbon tape take-up roll to rotate, so that paper output of label paper and tightening of carbon tape are realized; when the motor rotates to the opposite side, the first gear set transmits reverse power to the planetary gear set, and the planetary gear set drives the printing rubber roller and the carbon ribbon unreeling roller to rotate, so that paper withdrawal of label paper and recovery of carbon ribbon are realized.
7. The reversible label printer as claimed in claim 6, wherein the label printer is used for printing die cut label rolls, continuous label rolls, heat shrink tubing rolls or label strip rolls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122614096.9U CN219706496U (en) | 2021-10-28 | 2021-10-28 | Gear transmission system of label printer and reversible label printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122614096.9U CN219706496U (en) | 2021-10-28 | 2021-10-28 | Gear transmission system of label printer and reversible label printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219706496U true CN219706496U (en) | 2023-09-19 |
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ID=87982955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122614096.9U Active CN219706496U (en) | 2021-10-28 | 2021-10-28 | Gear transmission system of label printer and reversible label printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219706496U (en) |
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2021
- 2021-10-28 CN CN202122614096.9U patent/CN219706496U/en active Active
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