CN114953760A

CN114953760A - Printer and printing method

Info

Publication number: CN114953760A
Application number: CN202210610187.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xiamen Hanyin Electronic Technology Co Ltd
Current assignee: Xiamen Hanyin Electronic Technology Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-30
Anticipated expiration: 2042-05-31
Also published as: CN114953760B

Abstract

The invention relates to the technical field of printers, and particularly discloses a printer which comprises a rack, an imprinting unit, a printing unit and a pressing unit, wherein the imprinting unit is supported on the rack and is constructed to extend along a first direction; the printing unit is provided with a printing head, and the printing head and the impression unit display printing information on a printing medium in a mode of clamping the printing medium by pressure; the pressing unit is arranged on the frame and comprises a supporting part and a force application part, wherein the supporting part is supported on the frame and is provided with a first part and a second part, the first part supports one end of the printing unit in the first direction, and the printing unit is arranged to be far away from or pressed against the impressing unit in a mode of rotating around the other end of the first part; the force application component is arranged between the frame and the support component; the urging member urges the second portion to urge the printing unit in a direction in which the pressing platen unit rotates via the first portion. The vibration of the second part can be absorbed by the arrangement, so that the vibration of the first part is reduced, and the printing effect of the printing head is improved.

Description

Printer and printing method

Technical Field

The invention relates to the technical field of printers, in particular to a printer.

Background

When the thermal transfer printer works, the printing head needs to be pressed on the printing medium with a certain pressure, then the program controls the printing head to generate heat line by line according to the printing content, and meanwhile, the printing medium advances according to the printing resolution and the printing speed under the driving of the printing rubber roller, or the printing head advances according to the printing resolution and the printing speed to print the printing content on the printing medium.

In the printing process of the thermal transfer printer, the problem of vibration of the printing head often occurs, and the printing effect is further influenced.

Disclosure of Invention

The invention aims to: the utility model provides a printer to solve among the correlation technique printer at the during operation, beat printer head because the vibrations of self, and then influence the problem of printing the effect.

The present invention provides a printer, including:

a frame;

an imprinting unit supported on the frame and configured to extend in a first direction;

the printing unit is provided with a printing head, and the printing head and the impressing unit clamp a printing medium through pressure to display printing information on the printing medium; and

the pressing unit is configured on the frame and comprises:

a support member supported on the frame, having a first portion and a second portion, the first portion supporting one end of the printing unit in the first direction, the printing unit being configured to be moved away from or pressed against the platen unit by being rotated about the other end of the first portion; and

a biasing member disposed between the frame and the support member;

the urging member is configured to urge the second portion so as to urge the printing unit in a direction in which the printing unit is pressed against the platen unit to rotate by the first portion.

As a preferable technical solution of the printer, the force application member includes a first elastic member and a push rod group, the push rod group is disposed between the frame and the second portion, and the first elastic member drives the push rod group to move in a direction approaching the frame.

As a preferred embodiment of the printer, the second portion is slidably engaged with the frame in a direction in which the printing unit is pressed against the platen unit;

the push rod group comprises a push rod and a rolling piece, one end of the push rod is in running fit with the rolling piece, and the first elastic piece drives the other end of the push rod and enables the rolling piece to be abutted to the rack.

As a preferred technical solution of the printer, the printing unit includes a swing rod, the supporting member includes an adjusting structure and a deformation member, one end of the swing rod is fixedly connected to the printing head, the other end of the swing rod is fixedly connected to the first portion, the adjusting structure enables the swing rod to rotate relative to the second portion or to be angularly fixed relative to the second portion, the deformation member is disposed between the second portion and the swing rod, and when the printing head is pressed against the pressing unit, the deformation member is disposed to be elastically deformed between the second portion and the swing rod.

As a preferred technical solution of the printer, the deformation member includes one or more of foam, silicone rubber, a spring, a torsion spring, a leaf spring, a spring plate formed on the second portion, and a spring plate formed on the swing lever.

As the preferred technical scheme of printer, adjust the structure and still include second elastic component, regulation plectrum and spacing post, adjust the plectrum one end with second portion pin joint, be provided with spacing spout on the regulation plectrum, spacing post set up in on the swinging arms and wear to locate spacing spout, the second elastic component set up in second portion with between the swinging arms.

As the preferred technical scheme of printer, the second portion includes supporting seat, connecting piece and driving piece, the connecting piece makes the supporting seat with frame sliding fit, the driving piece drive the supporting seat slides.

As a preferred technical scheme of the printer, the connecting piece comprises a lifting guide shaft and a linear bearing, the lifting guide shaft is fixedly arranged on the frame, the periphery of the linear bearing is fixedly connected with the supporting seat, and the linear bearing is sleeved on the lifting guide shaft.

As a preferred technical solution of the printer, the connecting member further includes a third elastic member, the third elastic member is sleeved on the lifting guide shaft, and the third elastic member is disposed between the support seat and the frame.

As the preferred technical scheme of printer, the driving piece includes the cam, the cam rotate set up in the frame, and be located the supporting seat below, the supporting seat with the cam butt.

The invention has the beneficial effects that:

the invention provides a printer, which comprises a frame, an impression unit, a printing unit and a pressing unit, wherein the impression unit is supported on the frame and is configured to extend along a first direction; the printing unit is provided with a printing head, and the printing head and the impression unit display printing information on a printing medium in a mode of clamping the printing medium by pressure; the pressing unit is arranged on the frame and comprises a supporting part and a force application part, the supporting part is supported on the frame and is provided with a first part and a second part, the first part supports one end of the printing unit in the first direction, and the printing unit is configured to be far away from or pressed against the impressing unit in a mode of rotating around the other end of the first part; the force application component is arranged between the frame and the supporting component; the urging member is configured to urge the second portion so as to urge the printing unit in a direction in which the pressing platen unit rotates via the first portion. Since the printing unit is configured to be away from or pressed against the platen unit in a manner of rotating around the other end of the first portion, when the printing head presses the platen unit and the printing medium slides relative to the printing head, the first portion may vibrate, and the vibration of the first portion is transmitted to the second portion, so that the second portion vibrates together with the first portion. The vibration energy of the second part can be absorbed by the arrangement, so that the vibration amplitude of the first part can be reduced, and the printing effect of the printing head is improved.

Drawings

FIG. 1 is a first cross-sectional view of a printer in accordance with an embodiment of the present invention;

FIG. 2 is a second cross-sectional view of the printer in an embodiment of the invention.

In the figure:

100. a print medium;

1. a frame; 2. an imprint unit; 3. a print head;

4. a pressing unit; 411. a swing lever; 412. an adjustment structure; 4121. a second elastic member; 4122. adjusting the shifting piece; 4123. a limiting column; 413. a deformation member;

421. a supporting seat; 422. a connecting member; 4221. a lifting guide shaft; 4222. a linear bearing; 4223. a third elastic member; 423. a drive member;

43. a force application member; 431. a first elastic member; 432. a top rod; 433. a rolling member.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As for the transfer speed of the printing medium 100, the printing medium 100 is varied between a first driving speed and a second driving speed, wherein the second driving speed is greater than the first driving speed, and the speed of the printing medium 100 vibrating the printhead 3 is between the first driving speed and the second driving speed. In the present embodiment, the pressure of the print head 3 against the print medium 100 is a constant value, and therefore the kinetic friction force between the print head 3 and the print medium 100 is a constant value. When the moving speed of the printing medium 100 is gradually increased, the printing head 3 is displaced along with the moving direction of the printing medium 100, and the first portion is elastically deformed. In this process, the pressure of the printing head 3 on the printing medium 100 is reduced, and the dynamic friction between the printing head 3 and the printing medium 100 is reduced, so that the first portion is restored to its original shape by its own elastic force. In this process, the print head 3 may vibrate relative to the print medium 100, thereby affecting the printing quality of the printer.

To solve the above problems, as shown in fig. 1 to 2, the present invention provides a printer, including a frame 1, a platen unit 2, a printing unit, and a pressing unit 4, wherein the platen unit 2 is supported on the frame 1 and configured to extend in a first direction; the printing unit is provided with a printing head 3, and the printing head 3 and the impression unit 2 clamp the printing medium 100 by pressure to display printing information on the printing medium 100; and a pressing unit 4 disposed on the frame 1, including a supporting member supported on the frame 1, having a first portion supporting one end of the printing unit in the first direction and a second portion, and a force applying member 43 configured to be moved away from or pressed against the platen unit 2 by being rotated around the other end of the first portion; and the urging member 43 is disposed between the frame 1 and the support member; the urging member 43 is configured to urge the second portion so as to urge the printing unit in a direction in which the printing unit is pressed against the platen unit 2 to rotate by the first portion. Since the printing unit is configured to be separated from or pressed against the platen unit 2 by rotating around the other end of the first portion, when the printing head 3 presses the platen unit 2 and the printing medium 100 slides relative to the printing head 3, the first portion may vibrate, and the vibration of the first portion is transmitted to the second portion to vibrate the second portion together, but the printer is provided with the urging member 43, and the urging member 43 drives the second portion in a direction of separating from the frame 1, so that the second portion and the frame 1 are abutted against each other. The arrangement can absorb the vibration energy of the second part, thereby reducing the vibration amplitude of the first part and improving the printing effect of the printing head 3.

Wherein the first direction is the biasing direction of the biasing member 43.

Specifically, the second portion includes a supporting seat 421, a connecting member 422, and a driving member 423, where the connecting member 422 makes the supporting seat 421 slide-fit with the frame 1 along a direction in which the printing unit presses against the platen unit 2, the driving member 423 drives the supporting seat 421 to move, so that the printing head 3 located on the first portion moves along a direction close to or away from the platen unit 2, the supporting seat 421 is hinged to the first portion and has a relatively fixed first state and a relatively rotated second state, the force application member 43 is disposed between the frame 1 and the supporting seat 421, and the supporting seat 421 and the frame 1 are abutted to each other, so as to offset a part of the vibration of the first portion.

Alternatively, the force application part 43 includes a first elastic member 431 and a jack group, and the first elastic member 431 drives the jack group to move toward the frame 1. In this embodiment, the first elastic member 431 is a spring, the supporting base 421 is provided with a mounting hole, one end of the first elastic member 431 is disposed in the mounting hole, and the other end of the first elastic member is abutted to the push rod set and abuts to the rack 1. This arrangement makes it possible to prevent relative vibrations between the support 421 and the frame 1. Specifically, the first elastic member 431 is a compression spring,

optionally, the top rod set comprises a top rod 432 and a rolling member 433, one end of the top rod 432 is rotatably matched with the rolling member 433, and the first elastic member 431 drives the other end of the top rod 432 and enables the rolling member 433 to abut against the machine frame 1. In this embodiment, the rolling member 433 can reduce the friction between the top bar 432 and the frame 1. Specifically, the rolling member 433 is a rolling bearing or a roller.

As to the specific structure of the connecting member 422, optionally, the connecting member 422 includes a lifting guide shaft 4221 and a linear bearing 4222, the lifting guide shaft 4221 is fixedly disposed on the frame 1, the outer circumference of the linear bearing 4222 is fixedly connected to the supporting seat 421, and the linear bearing 4222 is sleeved on the lifting guide shaft 4221. In this embodiment, two linear guide shafts are provided, the two linear guide shafts are respectively disposed on the base at intervals along a direction in which the printing head 3 is close to the platen unit 2, two linear bearings 4222 are provided, the two linear bearings 4222 are respectively sleeved on the two linear guide shafts, and can respectively slide along the axial direction of the linear guide shafts relative to the linear guide shafts. The supporting seat 421 is disposed between the two linear guide shafts and is respectively fixed to the two linear bearings 4222. The support 421 can slide on the frame 1.

Further, optionally, the connecting member 422 further includes a third elastic member 4223, the third elastic member 4223 is sleeved on the lifting guide shaft 4221, and the third elastic member 4223 is disposed between the supporting seat 421 and the frame 1. In this embodiment, the third elastic member 4223 pushes the supporting seat 421 to approach the cam. This setting can make supporting seat 421 and cam butt all the time, and then promotes the driven stability of driving piece 423. Specifically, the third elastic element 4223 is a spring, which is sleeved on the linear guide shaft and two ends of which are respectively abutted against the frame 1 and the support seat 421.

For the specific structure of the driving member 423, optionally, the driving member 423 includes a stepping motor, a cam and a roller, the cam is rotatably disposed on the frame 1 and located below the supporting seat 421, the roller is rotatably disposed on the supporting seat 421, the roller abuts against the cam, and a rotating shaft of the roller is parallel to a rotating shaft of the cam. The stepping motor drives the cam to rotate, and the cam moves the support seat 421 along the axis of the linear guide shaft. Thereby adjusting the relative position of the support seat 421 and the frame 1.

Alternatively, the printing unit comprises a swing lever 411, the support member comprises an adjusting structure 412 and a deformation element 413, one end of the swing lever 411 is fixedly connected with the printing head 3, the other end of the swing lever 411 is fixedly connected with one end of the first part, and the other end of the first part is hinged with the second part. The supporting seat 421 is slidably engaged with the frame 1 through a connecting member 422, the adjusting structure 412 can adjust the angle of the swing rod 411 relative to the supporting seat 421, the deformation element 413 is disposed between the supporting seat 421 and the swing rod 411, and when the print head 3 is pressed against the platen unit 2, the deformation element 413 is disposed to elastically deform between the supporting seat 421 and the swing rod 411. When the printer works, the printing medium 100 and the printing head 3 are driven to move relatively by the impression unit 2, so that the printing head 3 is driven by the impression unit 2 to deform, the dynamic friction force between the printing head 3 and the printing medium 100 is gradually reduced along with the aggravation of the deformation degree of the printing head 3, and then the relative vibration occurs between the printing head 3 and the printing medium 100. Since the deformation member 413 is elastically deformed between the support seat 421 and the swing lever 411, the deformation member 413 can absorb the shock transmitted from the print head 3 to the swing lever 411. Thereby reducing the relative vibration between the print head 3 and the print medium 100 and improving the printing quality of the print head 3.

Alternatively, the deformation member 413 may include one or more of foam, silicon rubber, a spring, a torsion spring, a plate spring, a resilient piece formed on the support seat 421, and a resilient piece formed on the swing lever 411. In this embodiment, the deformation member 413 is foam.

Optionally, the adjusting structure 412 includes a second elastic member 4121, and the second elastic member 4121 is disposed between the swing lever 411 and the supporting seat 421. After the relative position between the printing head 3 and the pressing unit 2 is adjusted by sliding the supporting base 421, the angle between the oscillating rod 411 and the supporting base 421 can be adjusted by the adjusting structure 412, so as to achieve a preset pressure value between the printing head 3 and the pressing unit 2. In this process, since the swing lever 411 and the support seat 421 are hinged, a gap exists between the swing lever 411 and the support seat 421, and thus relative movement between the print head 3 and the print medium 100 is easily caused. In this embodiment, a second elastic member 4121 is provided between the swing lever 411 and the support seat 421. This arrangement can reduce the relative movement between the swing lever 411 and the support seat 421. Specifically, the second elastic member 4121 is a compression spring.

The specific configuration of the adjustment structure 412 is optional. The adjusting structure 412 further includes an adjusting dial 4122 and a limiting post 4123, one end of the adjusting dial 4122 is pivotally connected to the supporting seat 421, the adjusting dial 4122 is provided with a limiting sliding groove, and the limiting post 4123 is disposed on the swing rod 411 and penetrates through the limiting sliding groove. In this embodiment, the angle between the adjusting dial 4122 and the supporting seat 421 is adjusted, so that the limiting post 4123 can slide in the limiting sliding groove, and the angle between the swing rod 411 and the supporting seat 421 is adjusted.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A printer, comprising:

a frame (1);

an imprint unit (2) supported on the frame (1) and configured to extend in a first direction;

the printing unit is provided with a printing head (3), and the printing head (3) and the stamping unit (2) display printing information on the printing medium (100) in a mode of clamping the printing medium (100) through pressure; and

a pressing unit (4) arranged on the frame (1) and comprising:

a support member supported on the frame (1) and having a first portion and a second portion, the first portion supporting one end of the printing unit in the first direction, the printing unit being configured to be moved away from or pressed against the platen unit (2) by being rotated about the other end of the first portion; and

a biasing member (43) disposed between the frame (1) and the support member;

the urging member (43) is configured to urge the second portion so as to urge the printing unit in a direction in which the printing unit is pressed against the platen unit (2) to rotate by the first portion.

2. The printer according to claim 1, wherein the urging member (43) includes a first elastic member (431) and a set of pins, the set of pins being disposed between the frame (1) and the second portion, the first elastic member (431) driving the set of pins to move in a direction approaching the frame (1).

3. Printer according to claim 2 characterised in that said second portion is in sliding engagement with said frame (1) in the direction in which said printing unit is pressed against said stamping unit (2);

the ejector rod group comprises an ejector rod (432) and a rolling piece (433), one end of the ejector rod (432) is in running fit with the rolling piece (433), and the first elastic piece (431) drives the other end of the ejector rod (432) and enables the rolling piece (433) to be abutted to the rack (1).

4. A printer according to any one of claims 1 to 3, characterised in that said printing unit comprises a swinging lever (411), said supporting element comprising an adjusting structure (412) and a deformation element (413), one end of said swinging lever (411) being solidly connected to said printing head (3) and the other end of said swinging lever (411) being solidly connected to said first portion, said adjusting structure (412) enabling said swinging lever (411) to rotate with respect to said second portion or to be angularly fixed with respect to said second portion, said deformation element (413) being arranged between said second portion and said swinging lever (411), said deformation element (413) being arranged to be elastically deformed between said second portion and said swinging lever (411) when said printing head (3) is pressed against said stamping unit (2).

5. Printer according to claim 4 wherein said deformation element (413) comprises one or more of foam, silicone rubber, a spring, a torsion spring, a leaf spring, a spring tab formed on said second portion and a spring tab formed on said oscillating lever (411).

6. The printer according to claim 4, wherein the adjusting structure (412) further comprises a second elastic member (4121), an adjusting dial (4122) and a limiting post (4123), one end of the adjusting dial (4122) is pivotally connected to the second portion, a limiting sliding groove is disposed on the adjusting dial (4122), the limiting post (4123) is disposed on the swing rod (411) and penetrates through the limiting sliding groove, and the second elastic member (4121) is disposed between the second portion and the swing rod (411).

7. Printer according to claim 3 characterized in that said second portion comprises a support seat (421), a connection member (422) and an actuation member (423), said connection member (422) slidingly engaging said support seat (421) with said frame (1), said actuation member (423) driving said support seat (421) in sliding movement.

8. The printer according to claim 7, wherein the connecting member (422) comprises a lifting guide shaft (4221) and a linear bearing (4222), the lifting guide shaft (4221) is fixedly arranged on the frame (1), the outer periphery of the linear bearing (4222) is fixedly connected with the supporting seat (421), and the linear bearing (4222) is sleeved on the lifting guide shaft (4221).

9. The printer according to claim 8, wherein the connecting member (422) further comprises a third elastic member (4223), the third elastic member (4223) is sleeved on the lifting guide shaft (4221), and the third elastic member (4223) is disposed between the supporting seat (421) and the frame (1).

10. Printer according to anyone of claims 7 to 9 characterized in that said actuating member (423) comprises a cam rotatably arranged in said frame (1) below said support seat (421), said support seat (421) being in abutment with said cam.