CN215850350U

CN215850350U - Label printer

Info

Publication number: CN215850350U
Application number: CN202122175770.8U
Authority: CN
Inventors: 庞静; 周昌伟; 赖先友; 毕袁勇; 何壮
Original assignee: Chongqing Wewin Technology Co ltd
Current assignee: Chongqing Wewin Technology Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-18
Anticipated expiration: 2031-09-09

Abstract

The utility model provides a label printer, and belongs to the technical field of printers. It has solved current label printer complex operation, detection space scope little and the low problem of detection precision when changing printing paper. It includes base, upper cover and beats the head support, and it has first connecting rod to cover to articulate on, and the one end that the upper cover was kept away from to first connecting rod is with beating head support sliding connection, is equipped with down the sensor on the base, beats the head support and is equipped with sensor on, and sensor down set up relatively when upper cover and base lock, and the upper cover is equipped with and pulls the subassembly, and pull the subassembly and will go up the sensor and pull away from beating one side that the head support is close to down the sensor when opening the upper cover. The upper sensor and the lower sensor can be separated, so that the printing paper can be replaced conveniently; the lower sensor can move on the lower sensor guide rail in a large range, so that the paper measuring space of the sensor can be increased, and the detection precision is improved.

Description

Label printer

Technical Field

The utility model belongs to the technical field of printers, and relates to a label printer.

Background

The label printer is a device for printing various image information such as bar codes, two-dimensional codes, figures, characters and the like on labels by adopting a heat-sensitive and heat-transfer printing mode, and generally comprises a casing, a machine core, a cabin cover, a carbon tape box and the like. When printing, the printing head is pressed on the printing rubber roller, the label and the carbon ribbon pass through the printing head and the printing rubber roller, and the machine core drives the printing rubber roller to rotate, so that the printing process is realized.

The existing label printer has the following problems: 1. paper is pressed by arranging a single paper pressing plate on the printer, and the sensor is arranged on the paper pressing plate, so that the paper penetrating operation is complicated, and the detection precision is low due to large shaking of printing paper; 2. the sensor of the printer is generally arranged on one side or near the middle, so that some special labels cannot be identified, and the detection space range of the printer is limited because the sensor cannot move.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a label printer with convenient printing paper replacement.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a label printer, includes the base, articulates the upper cover on the base and articulates the printer head support on the base, it is first central line to beat printer head support around the rotatory central line of base, the upper cover is the second central line around the rotatory central line of base, and first central line is parallel with the second central line, it has first connecting rod to cover to articulate on the upper cover, first connecting rod is the third central line around the rotatory central line of upper cover, and the third central line is parallel with the second central line, the one end that the upper cover was kept away from to first connecting rod and printer head support sliding connection, be equipped with down the sensor on the base, be equipped with sensor on beating printer head support, go up sensor and lower sensor relative setting when upper cover and base lock, on cover and be equipped with the subassembly that draws, draw the subassembly to draw the sensor to pull away from when opening the upper cover and beat printer head support and be close to one side of sensor down.

When the upper cover is buckled with the base, one side of the printing head support close to the lower sensor is abutted against the base through the first connecting rod, the upper sensor is moved to one side of the printing head support close to the lower sensor through the traction assembly, the upper sensor and the lower sensor are arranged oppositely, and printing paper passes through the upper sensor and the lower sensor. When the upper cover is opened, the first connecting rod pulls the printing head support away from the base, so that the upper sensor is separated from the lower sensor, and the printing paper is favorably replaced; meanwhile, the traction assembly pulls the upper sensor away from one side, close to the lower sensor, of the printing head support, the distance between the upper sensor and the lower sensor is further increased, and the printer paper roll is prevented from colliding with the upper sensor when being placed into or taken out of the printer paper roll.

In the above label printer, the print head support is provided with two first guide rail grooves which are arranged oppositely, and two upper sensor supports are arranged between the first guide rail grooves, the upper sensors are arranged on the upper sensor supports, one end of each upper sensor support is provided with a first support motion shaft which is in sliding fit with one of the first guide rail grooves, the other end of each upper sensor support is provided with a second support motion shaft which is in sliding fit with the other first guide rail groove, and the first support motion shafts are coaxially arranged with the second support motion shafts and are parallel to a third central line.

Under the action of the traction assembly, the first support moving shaft slides in one of the first guide rail grooves, and the second support moving shaft slides in the other first guide rail groove, so that the upper sensor support is driven to move, and finally the upper sensor is driven to move.

In the above label printer, the drawing assembly includes a second connecting rod having one end hinged to the upper cover, the other end of the second connecting rod is connected to the upper sensor support, the second connecting rod is a fourth central line around the central line of the rotation of the upper cover, and the fourth central line is coaxial with the first support movement axis. In the process of opening and closing the cover, the upper cover rotates around the second central line, the printing head support is driven to rotate around the first central line through the first connecting rod, and the upper sensor support is driven to move along the first guide rail groove under the action of the second connecting rod.

In the label printer, the first guide rail groove is provided with a guide section and a bending section, when the upper cover is opened, the first support moving shaft and the second support moving shaft are respectively positioned in different guide sections, and at the moment, one side of the upper sensor support provided with the upper sensor faces a first central line; when the upper cover is buckled, the first support moving shaft and the second support moving shaft are respectively positioned in different bending sections, and at the moment, one side of the upper sensor support provided with the upper sensor faces one side of the printing head support close to the lower sensor; an adjusting structure used for changing the orientation of the upper sensor support when the opening and closing cover is arranged between the upper sensor support and the printing head support.

The extending direction of the guide section is approximately vertical to the extending direction of the bending section, and the connecting part of the guide section and the bending section is in smooth transition, so that the first support motion shaft/the second support motion shaft can smoothly move between the guide section and the bending section.

In the above label printer, the adjusting structure includes a paper guide shaft parallel to the movement axis of the first support and disposed on the upper sensor support, one end of the paper guide shaft is in sliding fit with one of the first guide rail grooves, the other end of the paper guide shaft is in sliding fit with the other first guide rail groove, and one end of the second connecting rod, which is far away from the upper cover, is in rotating fit with the paper guide shaft.

After the upper cover is opened, the paper guide shaft, the first support moving shaft and the second support moving shaft are all positioned in the guide section; after the upper cover is buckled, the paper guide shaft, the first support moving shaft and the second support moving shaft are all positioned in the guide section.

In the label printer, the paper guide shaft is sleeved with the first platen roller. The first paper pressing roller limits the paper roll of the printer placed in the base, and the first paper pressing roller is located between the two second connecting rods.

In the label printer, the upper sensor support is provided with a second platen roller which is positioned between the first platen roller and the upper sensor, and the second platen roller is parallel to the first platen roller. The second platen roller limits the printing paper drawn out from the printer paper roll.

In the above label printer, a lower sensor guide rail is arranged in the base, the extending direction of the lower sensor guide rail is parallel to the first central line, a lower sensor support is arranged on the lower sensor guide rail in a sliding fit mode, and the lower sensor is arranged on the lower sensor support.

The position of the lower sensor can be moved along the length direction of the lower sensor guide rail, so that the printing paper with different widths can be detected.

In the label printer, the printing head support is provided with a second guide rail groove, one end of the first connecting rod, which is far away from the upper cover, is provided with a third support moving shaft in sliding fit with the second guide rail groove, and the third support moving shaft is parallel to a third central line.

In the above label printer, the first connecting rods are two and arranged oppositely, and the second connecting rod is located between the two first connecting rods.

In order to facilitate the installation of the first connecting rod and the second connecting rod, a plurality of installation suspensions are arranged on the inner side of the upper cover, each first connecting rod corresponds to one installation suspension, and each second connecting rod also corresponds to one installation suspension.

Compared with the prior art, the label printer has the following advantages: the upper sensor and the lower sensor can be separated, which is beneficial to replacing the printing paper; the traction assembly can pull the upper sensor away from one side of the printing head bracket close to the lower sensor, so that the distance between the upper sensor and the lower sensor is further increased, and the printer paper roll is prevented from colliding with the upper sensor when being placed in or taken out; an adjusting structure is arranged for changing the orientation of the upper sensor bracket, so that the collision risk is further reduced; the lower sensor guide rail is arranged, so that the position of the lower sensor can be changed, the detection space range is wide, and some special labels can be identified; the first paper pressing roller and the second paper pressing roller enable printing paper to be fed more stably, and detection accuracy of the upper sensor and the lower sensor can be improved.

Drawings

Fig. 1 is a schematic structural diagram of a label printer according to the present invention.

Fig. 2 is a cross-sectional view of the label printer provided by the present invention when the cover is opened.

Fig. 3 is a further cross-sectional view of the label printer provided by the present invention when the cover is opened.

Fig. 4 is a cross-sectional view of the label printer according to the present invention when closed.

Fig. 5 is an exploded view of the internal structure of the label printer provided by the present invention.

Fig. 6 is a schematic illustration of an explosion at the lower sensor provided by the present invention.

In the figure, 1, a base; 2. an upper cover; 3. a print head holder; 4. a first link; 5. a lower sensor; 6. an upper sensor; 7. a first guide rail groove; 71. a guide section; 72. bending sections; 8. mounting a sensor bracket; 9. a first carriage motion axis; 10. a second support motion axis; 11. a second link; 12. a paper guide shaft; 13. a first platen roller; 14. a second platen roller; 15. a lower sensor rail; 16. a lower sensor mount; 17. a second guide rail groove; 18. a third support motion axis; 19. and (5) mounting a suspension.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The label printer shown in fig. 1 comprises a base 1, an upper cover 2 hinged on the base 1 and a printing head support 3 hinged on the base 1, wherein the printing head support 3 is buckled between the base 1 and the upper cover 2 when the upper cover 2 is buckled with the base 1. The central line of the printing head support 3 rotating around the base 1 is a first central line, the central line of the upper cover 2 rotating around the base 1 is a second central line, the first central line is parallel to the second central line, the upper cover 2 is hinged with a first connecting rod 4, the central line of the first connecting rod 4 rotating around the upper cover 2 is a third central line, and the third central line is parallel to the second central line. In this embodiment, the first connecting rods 4 are two and are oppositely arranged. In some other embodiments, the first link 4 may be provided as one so long as the print head holder 3 can be pulled away from the base 1 when the upper cover 2 is opened.

In this embodiment, the end of the first link 4 away from the upper cover 2 is slidably connected to the print head holder 3. Specifically, as shown in fig. 2 and 3, the print head support 3 is provided with a second guide rail groove 17, and one end of the first link 4 away from the upper cover 2 is provided with a third support moving shaft 18 in sliding fit with the second guide rail groove 17, as shown in fig. 5, the third support moving shaft 18 is parallel to the third central line.

As shown in fig. 6, a lower sensor guide rail 15 is arranged in the base 1, the extending direction of the lower sensor guide rail 15 is parallel to the first central line, a lower sensor bracket 16 is slidably fitted on the lower sensor guide rail 15, and the lower sensor 5 is arranged on the lower sensor bracket 16. The position of the lower sensor 5 can be moved along the length direction of the lower sensor guide 15 to satisfy the detection of printing paper of different widths.

As shown in fig. 2, 3, 4 and 5, the print head bracket 3 is provided with an upper sensor 6, the upper sensor 6 is arranged opposite to the lower sensor 5 when the upper cover 2 is fastened with the base 1, the upper cover 2 is provided with a traction assembly, and the traction assembly pulls the upper sensor 6 away from one side of the print head bracket 3 close to the lower sensor 5 when the upper cover 2 is opened. When the upper cover 2 is buckled with the base 1, one side of the printing head support 3 close to the lower sensor 5 is abutted against the base 1 through the first connecting rod 4, the upper sensor 6 is moved to one side of the printing head support 3 close to the lower sensor 5 through the traction assembly, the upper sensor 6 and the lower sensor 5 are arranged oppositely, and printing paper passes through between the upper sensor 6 and the lower sensor 5. When the upper cover 2 is opened, the first connecting rod 4 pulls the printing head support 3 away from the base 1, so that the upper sensor 6 is separated from the lower sensor 5, and the printing paper can be replaced conveniently; meanwhile, the traction assembly pulls the upper sensor 6 away from one side, close to the lower sensor 5, of the printing head support 3, the distance between the upper sensor 6 and the lower sensor 5 is further increased, and when a printer paper roll is placed in or taken out, the printer paper roll is prevented from colliding with the upper sensor 6.

Specifically, as shown in fig. 2 and 3, the print head support 3 has two first guide rail grooves 7 disposed opposite to each other, an upper sensor support 8 is disposed between the two first guide rail grooves 7, the upper sensor 6 is disposed on the upper sensor support 8, one end of the upper sensor support 8 has a first support movement shaft 9 slidably engaged with one of the first guide rail grooves 7, the other end of the upper sensor support 8 has a second support movement shaft 10 slidably engaged with the other first guide rail groove 7, and the first support movement shaft 9 and the second support movement shaft 10 are coaxially disposed and parallel to a third central line.

Under the action of the traction assembly, the first support moving shaft 9 slides in one of the first guide rail grooves 7, and the second support moving shaft 10 slides in the other first guide rail groove 7, so that the upper sensor support 8 is driven to move, and finally the upper sensor 6 is driven to move.

As shown in fig. 2 and 3, the pulling assembly includes a second link 11 having one end hinged to the upper cover 2, the other end of the second link 11 being connected to the upper sensor support 8, the second link 11 being a fourth central line around the center line of rotation of the upper cover 2, the fourth central line being coaxially disposed with the first support movement shaft 9. In the process of opening and closing the cover, the upper cover 2 rotates around the second central line, the printing head support 3 is driven to rotate around the first central line through the first connecting rod 4, and the upper sensor support 8 is driven to move along the first guide rail groove 7 under the action of the second connecting rod 11. In this embodiment, the second link 11 is located between the two first links 4.

As shown in fig. 3, the first guide rail groove 7 has a guide section 71 and a bending section 72, and when the upper cover 2 is opened, the first support moving shaft 9 and the second support moving shaft 10 are respectively located in different guide sections 71, and at this time, the side of the upper sensor support 8 where the upper sensor 6 is located faces the first central line. When the upper cover 2 is buckled, the first bracket moving shaft 9 and the second bracket moving shaft 10 are respectively positioned in different bending sections 72, and at the moment, one side of the upper sensor bracket 8, which is provided with the upper sensor 6, faces one side of the printing head bracket 3, which is close to the lower sensor 5. An adjusting structure for changing the orientation of the upper sensor bracket 8 when the cover is opened and closed is arranged between the upper sensor bracket 8 and the printing head bracket 3.

The extending direction of the guiding section 71 is approximately perpendicular to the extending direction of the bending section 72, and the connection between the guiding section 71 and the bending section 72 is in smooth transition, so that the first support motion shaft 9/the second support motion shaft 10 can smoothly move between the guiding section 71 and the bending section 72.

As shown in fig. 2 and 5, the adjusting structure includes a paper guide shaft 12 disposed on the upper sensor support 8 and parallel to the first support moving shaft 9, one end of the paper guide shaft 12 is slidably engaged with one of the first guide rail grooves 7, the other end of the paper guide shaft 12 is slidably engaged with the other first guide rail groove 7, and one end of the second link 11 away from the upper cover 2 is rotatably engaged with the paper guide shaft 12. After the upper cover 2 is opened, the paper guide shaft 12, the first bracket moving shaft 9 and the second bracket moving shaft 10 are all positioned in the guide section 71; after the upper cover 2 is fastened, the paper guide shaft 12, the first support moving shaft 9 and the second support moving shaft 10 are all located in the guide section 71.

As shown in fig. 3, the paper guide shaft 12 is fitted with a first platen roller 13. The first platen roller 13 limits the printer paper roll placed in the base 1, and the first platen roller 13 is positioned between the two second connecting rods 11. As shown in fig. 3, the upper sensor holder 8 is provided with a second platen roller 14 positioned between the first platen roller 13 and the upper sensor 6, and the second platen roller 14 is parallel to the first platen roller 13. The second platen roller 14 positions the paper being drawn from the printer roll.

In order to facilitate the mounting of the first link 4 and the second link 11, a plurality of mounting suspensions 19 are provided on the inner side of the upper cover 2 in the present embodiment, one mounting suspension 19 corresponding to each first link 4, and one mounting suspension 19 corresponding to each second link 11.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A label printer comprises a base (1), an upper cover (2) hinged on the base (1) and a printing head support (3) hinged on the base (1), wherein the central line of the printing head support (3) rotating around the base (1) is a first central line, the central line of the upper cover (2) rotating around the base (1) is a second central line, the first central line is parallel to the second central line, a first connecting rod (4) is hinged on the upper cover (2), the central line of the first connecting rod (4) rotating around the upper cover (2) is a third central line, the third central line is parallel to the second central line, one end of the first connecting rod (4) far away from the upper cover (2) is connected with the printing head support (3) in a sliding manner, the label printer is characterized in that a lower sensor (5) is arranged on the base (1), an upper sensor (6) is arranged on the printing head support (3), and the upper sensor (6) and the lower sensor (5) are arranged oppositely when the upper cover (2) is buckled with the base (1), the upper cover (2) is provided with a traction assembly, and when the upper cover (2) is opened, the traction assembly pulls the upper sensor (6) away from one side of the printing head support (3) close to the lower sensor (5).

2. The label printer according to claim 1, characterized in that the print head holder (3) has two oppositely disposed first guide rail grooves (7), two upper sensor holders (8) are disposed between the first guide rail grooves (7), the upper sensor (6) is disposed on the upper sensor holder (8), one end of the upper sensor holder (8) has a first holder movement shaft (9) slidably engaged with one of the first guide rail grooves (7), the other end of the upper sensor holder (8) has a second holder movement shaft (10) slidably engaged with the other first guide rail groove (7), and the first holder movement shaft (9) is disposed coaxially with the second holder movement shaft (10) and parallel to a third center line.

3. A label printer according to claim 2, wherein said drawing assembly comprises a second link (11) hinged at one end to the upper cover (2), the other end of said second link (11) being connected to the upper sensor support (8), the centre line of rotation of said second link (11) about the upper cover (2) being a fourth centre line, said fourth centre line being arranged coaxially to the first support movement axis (9).

4. The label printer according to claim 3, characterized in that the first guide rail groove (7) has a guide section (71) and a bending section (72), and the first carriage moving shaft (9) and the second carriage moving shaft (10) are respectively located in different guide sections (71) when the upper cover (2) is opened, and the side of the upper sensor carriage (8) provided with the upper sensor (6) faces the first center line; when the upper cover (2) is buckled, the first support moving shaft (9) and the second support moving shaft (10) are respectively positioned in different bending sections (72), and at the moment, one side of the upper sensor support (8) provided with the upper sensor (6) faces to one side of the printing head support (3) close to the lower sensor (5); an adjusting structure used for changing the orientation of the upper sensor support (8) when the cover is opened and closed is arranged between the upper sensor support (8) and the printing head support (3).

5. A label printer according to claim 4, wherein said adjustment mechanism comprises a guide shaft (12) arranged on the upper sensor support (8) parallel to the first support movement axis (9), one end of said guide shaft (12) being in sliding engagement with one of the first guide grooves (7), the other end of said guide shaft (12) being in sliding engagement with the other first guide groove (7), and the end of said second link (11) remote from the upper cover (2) being in rotating engagement with the guide shaft (12).

6. A label printer according to claim 5, characterised in that the guide shaft (12) is provided with a first platen roller (13).

7. A label printer according to claim 5, characterised in that the upper sensor support (8) is provided with a second platen roller (14) located between the first platen roller (13) and the upper sensor (6), the second platen roller (14) being parallel to the first platen roller (13).

8. A label printer according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, characterized in that a lower sensor guide (15) is provided in said base (1), said lower sensor guide (15) extending in a direction parallel to said first centre line, said lower sensor guide (15) having a lower sensor support (16) slidably engaged therewith, said lower sensor (5) being provided on said lower sensor support (16).

9. A label printer according to claim 1, wherein the print head carriage (3) is provided with a second guide slot (17), and the end of the first link (4) remote from the upper cover (2) has a third carriage movement axis (18) which is in sliding fit with the second guide slot (17), the third carriage movement axis (18) being parallel to the third centre line.

10. A label printer according to claim 3, wherein said first links (4) are two and oppositely disposed, said second link (11) being located between the two first links (4).