CN212289194U - Thermal printer with multiple printing heads - Google Patents
Thermal printer with multiple printing heads Download PDFInfo
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- CN212289194U CN212289194U CN202020422785.2U CN202020422785U CN212289194U CN 212289194 U CN212289194 U CN 212289194U CN 202020422785 U CN202020422785 U CN 202020422785U CN 212289194 U CN212289194 U CN 212289194U
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Abstract
The utility model discloses a thermal printer with beat printer head more, including support, print head group, roller group. The printing head group and the roller group are respectively used for printing patterns on printing paper and driving the printing paper to move, and the printing head group and the roller group are both arranged on the bracket. When the printer is closed, the print head set is pressed in contact with the roller set. The printing head group consists of a printing head bracket and two or more printing lines; the roller group comprises roller support, two or more roller units, and print head group, roller group mutually support, through the heating time of controlling each printing line, the direction of rotation and the distance of roller group to realize the printing paper of multiple different specifications. The utility model discloses a thermal printer with beat printer head more has solved the thermal printer size and has fixed, can't satisfy the problem that many sizes were printed, has small, simple structure, application scope's advantage.
Description
Technical Field
The utility model relates to a thermal printer, concretely relates to thermal printer with beat printer head more.
Background
Thermal printing is widely applied to industries such as production, storage, express logistics, retail and the like because of the advantages of simple structure, low failure rate, small size, low price, low material consumption cost, low energy consumption and the like.
The printing width of the thermal printer used at present is limited by the width of the thermal printing head, and the specifications of the thermal printing head commonly used at present mainly include: the effective printing size is relatively fixed according to limited specifications such as a 2-inch thermal printing head (the effective printing width is usually 56mm-58mm), a 3-inch thermal printing head (the effective printing width is usually 76mm-80mm), a 4-inch thermal printing head (the effective printing width is usually 104mm-108mm) and the like. The cost of the thermal print head is greatly improved along with the increase of the printing amplitude, particularly the cost of the thermal print head is increased by several times due to the small market usage amount, and the performance (such as the aspects of printing speed, service life and the like) of the thermal print head is not good as that of the thermal print head with the standard specification. The contradiction is particularly outstanding, the standard size paper such as A3, A4, A5 and the like which is commonly used cannot be printed by heat sensitivity because the width of the printing head is insufficient, while the price of the printer cannot be accepted by the market because the price of a special heat sensitive printing head such as 8 inches (203.2mm) and the like is high, and the practicability of the special heat sensitive printing head is not high because the printing speed is slow, the special heat sensitive printing head is easy to damage, the service life is short and the like, so that the application range of a heat sensitive printing mode is limited.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the thermal printer head width not enough, the problem of restriction application field provides a thermal printer with beat printer head more.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a thermal printer having multiple printheads, wherein: the method comprises the following steps:
the bracket consists of an upper bracket and a lower bracket;
the printing head group and the roller group are arranged on the bracket; when the printer shell is covered by the box cover, the printing head group is pressed against the roller group;
the printing head group consists of a printing head bracket and two or more printing lines, and each printing line consists of one or more thermal printing heads; the thermal printing heads are arranged on the printing head bracket, and the end parts of the effective printing areas of the thermal printing heads adjacent to each two effective printing areas are aligned or overlapped;
the roller group consists of a roller bracket and two or more roller units, the roller units are arranged on the roller bracket, each roller unit corresponds to one printing line, and the printing lines are pressed against the roller units after the printer is covered.
As a further optimization scheme of the utility model, the printing line still includes one or more and goes up supplementary roller, it rotates to set up on beating the printer head support to go up supplementary roller, and is same in the printing line, the temperature sensing beat printer head the heater wire with go up the central line alignment of supplementary roller. By even the upper auxiliary roller, the upper auxiliary roller is matched with the roller unit, the paper can be driven to move when printing, and the formed pattern can be controlled.
As a further optimization scheme of the utility model, every roller unit comprises one or many lower auxiliary rollers, closes when the printer and covers the back, the thermal printer head go up auxiliary roller with lower auxiliary roller cooperatees. The upper auxiliary roller and the lower auxiliary roller are matched with each other to work, so that paper can be driven to move during printing, and a pattern formed by printing is controlled.
As a further optimization scheme of the present invention, each roller unit is formed by combining one or more lower auxiliary rollers and one or more printing rollers, and the printing rollers in the same roller unit and the lower auxiliary rollers are driven to operate synchronously; when the printer is covered, the thermal printing head is matched with the printing roller, and the upper auxiliary roller is matched with the lower auxiliary roller.
As the utility model discloses a further optimization scheme, the four corners of beating the printer head support is provided with respectively beats printer head support and hangs the point, is equipped with on the upper bracket and beats printer head support and hang a point matched with upper bracket and hang the point, and when the printer closed the lid, beats and exists the clearance between printer head support hangs the point and the upper bracket hangs the point. The printing head support is fixed on the upper support through the arrangement of the printing head support hanging point and the upper support hanging point.
As the utility model discloses a further optimization scheme beats printer head support's both sides and is equipped with respectively and prints the support constant head tank, when the printer closes the lid, prints the support constant head tank and cooperatees with the location boss that sets up on roller group. Through setting up constant head tank and location boss, guaranteed to beat the accurate positioning of printer head support and roller group.
As a further preferred embodiment of the present invention, when the printer is closed, the heater line of the thermal print head is aligned with the center line of the roller unit. The heating line of the thermal printing head is aligned with the central line of the roller unit, so that the printing position of the thermal printing head is ensured not to be deviated when the thermal printing head prints.
As the utility model discloses a further optimization scheme is equipped with the paper feed detector in the paper feed mouth department of printer, is equipped with the paper detector in the paper exit department of printer.
As the utility model discloses a further optimization scheme beats and is equipped with the spring between printer head support and the upper bracket. Through setting up the spring, after the printer uncapped, the spring will make and print support downstream, makes and beat printer head support and hang the point and support to press in the upper bracket and hang the point.
The utility model has the advantages that:
by arranging the printing lines in the printing head group and arranging the roller units in the roller group, the thermal printer can be expanded, and the printing requirements of various sizes are met.
By arranging the overlapping or aligning of the end parts of the effective printing areas of the two adjacent thermal printing heads, the phenomenon that the printing areas are blank can not occur when the thermal printers are spliced, and the completeness of printing patterns is realized.
The printing head support is fixed on the upper support through the arrangement of the printing head support hanging point and the upper support hanging point.
Through setting up the spring, after the printer closed the lid, the spring will make and print the downward motion of support, makes and prints the support and press on roller group.
Through setting up constant head tank and location boss, guaranteed to beat the accurate positioning of printer head support and roller group.
By arranging the paper feeding detector and the paper discharging detector, the paper position is detected during printing, and the position of the thermal printing head printed on the paper is controlled.
Drawings
FIG. 1 is a schematic view of a thermal printer with multiple print heads according to the present invention;
FIG. 2 is a side view of a thermal printer having multiple printheads according to the present invention;
FIG. 3 is a schematic diagram of a print line configuration of a thermal printer having multiple print heads according to the present invention;
FIG. 4 is a schematic view of a roller unit structure of a thermal printer having multiple print heads according to the present invention;
FIG. 5 is a schematic view of a thermal printer head support with multiple print heads according to the present invention;
FIG. 6 is a schematic view of the thermal printer head support with multiple print heads of the present invention in cooperation with an upper support;
1-upper bracket, 2-lower bracket, 3-printing head group, 4-roller group, 5-paper feed detector, 6-paper discharge detector, 10-spring, 11-upper bracket hanging point, 31-printing head bracket, 32-first thermal printing head, 33-first upper auxiliary roller, 34-second thermal printing head, 35-second upper auxiliary roller, 41-roller fixing bracket, 42-first printing roller, 43-first lower auxiliary roller, 44-second printing roller, 45-second lower auxiliary roller, 311-printing head bracket hanging point, 312-printing bracket positioning groove, 411-lug boss
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1 to 2, the thermal printer with multiple print heads includes a bracket composed of an upper bracket 1 and a lower bracket 2, wherein the upper bracket 1 and the lower bracket 2 are respectively used for fixedly mounting a print head group 3 and a roller group 4, so as to ensure that the print head group 3 is contacted and pressed with the roller group 4 after the printer housing and the printer cover are closed.
The print head group 3 consists of a print head carriage 31, two or more print lines, each consisting of one or more thermal print heads. The thermal print heads are mounted on the print head bracket 31, and the ends of the effective printing areas of the thermal print heads adjacent to each two effective printing areas are aligned or partially overlapped. By setting the alignment or the partial overlapping, the occurrence of printing blank areas between two spliced printing lines is ensured.
The roller group 4 is composed of a roller bracket 41 and two or more roller units, the roller units are installed on the roller bracket 41, each roller unit corresponds to one printing line, and after the printer is covered, the printing lines and the roller units are contacted and pressed with each other.
Example 2
The thermal printer with multiple print heads as in embodiment 1, except that the print line further includes one or more upper auxiliary rollers rotatably disposed on the print head holder 31, and the heater line of the thermal print head is aligned with the center line of the upper auxiliary roller in the same print line.
Example 3
The thermal printer of embodiment 1 having a plurality of print heads differs only in that each of the roller units is composed of one or more lower auxiliary rollers, and the thermal print heads and the upper auxiliary rollers are engaged with the lower auxiliary rollers when the printer is closed.
Example 4
A thermal printer having a plurality of print heads as described in embodiment 1, differing only in that each of said roller units is composed of a combination of one or more lower auxiliary rollers and one or more printing rollers, and said printing rollers in the same roller unit are driven to operate in synchronization with said lower auxiliary rollers. When the printer is covered, the thermal printing head is matched with the printing roller, and the upper auxiliary roller is matched with the lower auxiliary roller.
Example 5
A thermal printer having a plurality of print heads as in embodiment 1, differing only in that the heater line of the thermal print head is aligned with the center line of the roller unit when the printer is closed. The heating line of the thermal printing head is aligned with the central line of the roller unit, so that the printing position of the thermal printing head is ensured not to be deviated when the thermal printing head prints.
Example 6
The thermal printer with multiple print heads as shown in embodiment 1 is different from that shown in fig. 5 and 6 only in that four corners of the print head holder 31 are respectively provided with print head holder hanging points 311, the upper holder 1 is provided with upper holder hanging points 11 matched with the print head holder hanging points 311, and when the printer is closed, a gap exists between the print head holder hanging points 311 and the upper holder hanging points 11. A spring 10 is provided between the head carriage 31 and the upper carriage 1. Print holder positioning slots 312 are also disposed on both sides of the print head holder 31, and the print holder positioning slots 312 are located between the two print head holder hanging points 311 on the same side. The roller set 4 is further provided with a positioning boss 411, and when the printer is covered, the positioning boss 23 is matched with the printing frame positioning slot 312, so that the printing head bracket 31 and the roller set 4 are accurately positioned.
After the printer is covered, the print head bracket 31 is pressed against the roller group 4 under the action of the spring 10, the print head bracket 31 moves upwards under the blocking of the roller group 4, the print head bracket hanging point 311 and the upper bracket hanging point 11 are respectively disengaged in a matching way, and meanwhile, the print bracket positioning groove 312 falls onto the boss 411, so that the accurate positioning of the print head bracket 31 and the roller group 4 is realized.
Example 7
The thermal printer with multiple print heads as shown in embodiment 1 is different from the thermal printer shown in fig. 1 and 2 in that a paper feeding detector 5 is disposed at a paper feeding port of the printer, a paper discharging detector 6 is disposed at a paper discharging port of the printer, and the paper feeding detector 5 and the paper discharging detector 6 can monitor the position of the printed paper in the printer in real time and perform feedback to control the printing position.
Example 8
The thermal printer having multiple print heads according to embodiment 1 differs only in that, as shown in fig. 3, the print head group 3 is composed of a print head carriage 31, a first print line composed of a first thermal print head 32 and a first upper auxiliary roller 33, and a second print line composed of a second thermal print head 34 and a second upper auxiliary roller 35. The first print line and the second print line are fixed side by side on the print head holder 31. The first printing line and the second printing line are installed in opposite directions from head to tail, so that the first thermal printing head 32 and the second thermal printing head 34 are arranged in a staggered manner. The ends of the effective printing areas of the first thermal printing head 32 and the second thermal printing head 34 can be aligned or overlapped, so that the continuity of patterns during printing is ensured, the phenomenon of pattern separation is avoided, and the left-right alignment of the printing contents can be ensured by improving the fixing precision of the first thermal printing head 32 and the second thermal printing head 34.
As shown in fig. 4, the roller group 4 is composed of a roller holder 41, a first roller unit composed of a first printing roller 42 and a first lower auxiliary roller 43, and a second roller unit composed of a second printing roller 44 and a second lower auxiliary roller 45. When the printer housing is covered, the first thermal print head 32 is pressed against the first print roller 42, and the first upper auxiliary roller 33 is pressed against the first lower auxiliary roller 43. The first printing roller 42, the first lower auxiliary roller 43, the second printing roller 44 and the second lower auxiliary roller 45 can cooperate through one or more motor drives, and the first printing roller 42 and the first lower auxiliary roller 43 are driven synchronously, and the second printing roller 44 and the second lower auxiliary roller 45 are driven synchronously.
When the printer shell is closed, the spring arranged on the first printing line provides pressure, so that one line of paper is heated, the second roller unit rotates to drive the paper to move forwards, multiple lines of paper are heated, and finally the required image is printed. And because the first printing roller 42 and the first lower auxiliary roller 43 operate synchronously, and the second printing roller 44 and the second lower auxiliary roller 45 operate synchronously, the printing effect can be effectively prevented from being influenced by the deviation of the paper during operation.
As shown in FIG. 2, the first thermal print head 32 and the second thermal print head 34, and the first print roller 42 and the second print roller 44 each have a curvilinear distance L therebetween1The first thermal print head and the paper output detector have a curve distance L2. By setting the curve distance L1、L2And the heating time between the first thermal print head 32 and the second thermal print head 34, effective control of the position of the thermal print head to print on the paper with the print contents aligned front to back can be achieved.
The printing paper enters the printer from the rear end of the printer, the paper feeding detector 5 starts the second printing roller 44 and the second lower auxiliary roller 45 in the second roller unit to synchronously operate after detecting the paper, when the paper moves to the matching position of the second thermal printing head 34 and the second printing roller 44, the printing paper is sent to a printing area, the paper continues to move, enters the matching position of the first thermal printing head 32 and the first printing roller 42 and continues to move to the paper discharging detector 6, the machine recognizes the front end position of the paper, the second printing roller 44 and the second lower auxiliary roller 45 in the second roller unit synchronously rotate reversely to drive the printing paper to retreat, the paper printing front end margin width a is set, the motor acceleration and deceleration distance b is designed, and the first roller unit and the second roller unit synchronously drive the printing paper to retreat by the distance L1+ L2-a + b. And starting the second printing roller 44 and the second lower auxiliary roller 45 in the second roller unit to rotate reversely again to drive the printing paper to move forward by a distance b, and starting the second thermal printing head 34 to heat and cooperate with the second roller unit to run, so that one side of the printing paper is printed. The second roller unit continues to drive the printing paper 5 to move forward for a distance L1, the first thermal printing head 32 is started to heat, and the second roller unit is matched to operate to print the other side of the printing paper. Thereafter. The paper continues to advance, and the first thermal print head 32 and the second thermal print head 34 continue to heat up, and print out the desired contents until the printing of the contents is completed, respectively.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (9)
1. A thermal printer having multiple printheads, characterized by: the method comprises the following steps:
the support consists of an upper support (1) and a lower support (2);
the printing head group (3) and the roller group (4) are arranged on the bracket; when the printer shell is covered by the box cover, the printing head group (3) is pressed against the roller group (4);
the printing head group (3) consists of a printing head bracket (31) and two or more printing lines, and each printing line consists of one or more thermal printing heads; the thermal printing heads are arranged on a printing head bracket (31), and the ends of the effective printing areas of the thermal printing heads adjacent to each two effective printing areas are aligned or overlapped;
the roller group (4) consists of a roller bracket (41) and two or more roller units, the roller units are arranged on the roller bracket (41), each roller unit corresponds to one printing line, and after the printer is closed, the printing lines are pressed against the roller units.
2. The thermal printer having multiple printheads of claim 1, wherein: the printing line further comprises one or more upper auxiliary rollers, the upper auxiliary rollers are rotatably arranged on the printing head bracket (31), and in the same printing line, the heating wire of the thermal printing head is aligned with the central line of the upper auxiliary rollers.
3. The thermal printer having multiple printheads of claim 2, wherein: each roller unit consists of one or more lower auxiliary rollers, and the thermal printing head and the upper auxiliary rollers are matched with the lower auxiliary rollers after the printer is covered.
4. The thermal printer having multiple printheads of claim 2, wherein: each roller unit is formed by combining one or more lower auxiliary rollers and one or more printing rollers, and the printing rollers in the same roller unit and the lower auxiliary rollers are driven to run synchronously; when the printer is covered, the thermal printing head is matched with the printing roller, and the upper auxiliary roller is matched with the lower auxiliary roller.
5. The thermal printer having multiple printheads of claim 1, wherein: the four corners of the printing head support (31) are respectively provided with a printing head support hanging point (311), an upper support hanging point (11) matched with the printing head support hanging point (311) is arranged on the upper support (1), and when the printer is closed, a gap exists between the printing head support hanging point (311) and the upper support hanging point (11).
6. The thermal printer having multiple printheads of claim 1, wherein: the two sides of the printing head support (31) are respectively provided with a printing support positioning groove (312), and when the printer is closed, the printing support positioning groove (312) is matched with a positioning boss (411) arranged on the roller group (4).
7. The thermal printer having multiple printheads of claim 1, wherein: when the printer is closed, the heating wire of the thermal printing head is aligned with the central line of the roller unit.
8. The thermal printer having multiple printheads of claim 1, wherein: a paper feed detector (5) is arranged at the paper inlet of the printer, and a paper outlet detector (6) is arranged at the paper outlet of the printer.
9. The thermal printer having multiple printheads of claim 1, wherein: a spring (10) is arranged between the printing head bracket (31) and the upper bracket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020422785.2U CN212289194U (en) | 2020-03-29 | 2020-03-29 | Thermal printer with multiple printing heads |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020422785.2U CN212289194U (en) | 2020-03-29 | 2020-03-29 | Thermal printer with multiple printing heads |
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| CN212289194U true CN212289194U (en) | 2021-01-05 |
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| CN202020422785.2U Active CN212289194U (en) | 2020-03-29 | 2020-03-29 | Thermal printer with multiple printing heads |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439039A (en) * | 2020-03-29 | 2020-07-24 | 许铂 | Thermal printer with multiple print heads |
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2020
- 2020-03-29 CN CN202020422785.2U patent/CN212289194U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439039A (en) * | 2020-03-29 | 2020-07-24 | 许铂 | Thermal printer with multiple print heads |
| CN111439039B (en) * | 2020-03-29 | 2024-01-16 | 杭州零墨云科技有限公司 | Thermal printer with multiple printheads |
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