CN114953760B - Printer with a printing mechanism - Google Patents

Abstract

The invention relates to the technical field of printers, and particularly discloses a printer which comprises a frame, an embossing unit, a printing unit and a compacting unit, wherein the embossing 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 embossing unit display printing information on the 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 provided with a first part and a second part, the first part supports one end of the printing unit in a first direction, and the printing unit is far away from or pressed against the stamping unit in a rotating mode around the other end of the first part; the force application component is arranged between the frame and the supporting component; the urging member urges the second portion to urge the printing unit in a direction of rotation of the platen unit through the first portion. The setting can absorb the vibrations of second portion, and then reduces the vibrations of first portion, improves the printer head and prints the effect.

Description

Printer with a printing mechanism

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 heat line by line according to the printing content, and meanwhile, the printing medium is driven by the printing rubber roller to run according to the printing resolution and the printing speed, or the printing head is driven by the printing rubber roller to run according to the printing resolution and the printing speed, so that the printing content is printed on the printing medium.

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

Disclosure of Invention

The invention aims at: a printer is provided to solve the problem that the printing effect is affected by vibration of a printing head when the printer works in the related art.

The present invention provides a printer, comprising:

a frame;

an embossing 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 embossing unit display printing information on the printing medium in a mode of clamping the printing medium by pressure; a kind of electronic device with high-pressure air-conditioning system

A pressing unit disposed on the frame, comprising:

a support member supported on the frame, having a first portion supporting one end of the printing unit in the first direction, and a second portion, the printing unit being configured to be moved away from or pressed against the platen unit by rotating about the other end of the first portion; a kind of electronic device with high-pressure air-conditioning system

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

the urging member is configured to urge the second portion to urge the printing unit in a direction of rotation against the platen unit via the first portion.

As a preferable technical scheme of the printer, the force application part comprises a first elastic piece and a push rod group, the push rod group is arranged between the frame and the second part, and the first elastic piece drives the push rod group to move towards a direction close to the frame.

As a preferable technical scheme of the printer, the second part is in sliding fit with the frame along the direction that the printing unit presses against the embossing unit;

the ejector rod group comprises an ejector rod and a rolling piece, one end of the ejector rod is in running fit with the rolling piece, and the first elastic piece drives the other end of the ejector rod and enables the rolling piece to be in butt joint with the frame.

As the preferable technical scheme of printer, the printing unit includes the swinging arms, the supporting part includes adjusting structure and deformation spare, the one end of swinging arms with print the head rigid coupling, the other end of swinging arms with first portion rigid coupling, adjusting structure enables the swinging arms relative the second portion rotates or relative the second portion angle is fixed, deformation spare disposes second portion with between the swinging arms, print the head compress tightly in when the impression unit, deformation spare disposes second portion with elastic deformation between the swinging arms.

As a preferable technical scheme of the printer, the deformation member comprises one or more of foam, silicone rubber, a spring, a torsion spring, a leaf spring, a spring piece formed on the second part and a spring piece formed on the swinging rod.

As the preferred technical scheme of printer, adjust the structure still include second elastic component, adjust plectrum and spacing post, adjust the one end of plectrum with the pin joint of second portion, be provided with spacing spout on the adjustment 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 a preferable technical scheme of the printer, the second part comprises a supporting seat, a connecting piece and a driving piece, wherein the connecting piece enables the supporting seat to be in sliding fit with the frame, and the driving piece drives the supporting seat to slide.

As the preferable technical scheme of printer, the connecting piece includes lift guiding axle and linear bearing, the lift guiding axle set firmly in the frame, linear bearing's periphery with the supporting seat rigid coupling, just linear bearing cover is located the lift guiding axle.

As the preferable technical scheme of the printer, the connecting piece further comprises a third elastic piece, the third elastic piece is sleeved on the lifting guide shaft, and the third elastic piece is arranged between the supporting seat and the frame.

As a preferable technical scheme of the printer, the driving member includes a cam, the cam is rotatably disposed on the frame and is located below the supporting seat, and the supporting seat is abutted to the cam.

The beneficial effects of the invention are as follows:

the invention provides a printer, comprising a frame, an embossing unit, a printing unit and a compacting unit, wherein the embossing 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 embossing unit display printing information on the 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 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 stamping unit in a rotating mode 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 to urge the printing unit in a direction of rotation of the platen unit through the first portion. Since the printing unit is configured to be moved away from or pressed against the platen unit by rotating about the other end of the first portion, when the platen unit is pressed by the print head and the print medium slides relatively to the print head, the first portion is vibrated, and the vibration of the first portion is transmitted to the second portion to vibrate the second portion together. The setting can absorb the vibration energy of second portion, and then can reduce the vibration amplitude of first portion, improves the printing effect of print head.

Drawings

FIG. 1 is a cross-sectional view of a printer according to an embodiment of the present invention;

fig. 2 is a second cross-sectional view of a printer according to an embodiment of the present invention.

In the figure:

100. a print medium;

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

4. a compressing unit; 411. a swinging rod; 412. an adjustment structure; 4121. a second elastic member; 4122. adjusting the poking piece; 4123. a limit column; 413. a deformation member;

421. a support base; 422. a connecting piece; 4221. a lifting guide shaft; 4222. a linear bearing; 4223. a third elastic member; 423. a driving member;

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

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present invention, 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 invention will be understood in specific cases by those of ordinary skill in the art.

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

As for the transfer speed of the printing medium 100, the printing medium 100 is changed 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 printing head 3 is made to be 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 dynamic 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 gradually increases, 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 print head 3 against the print medium 100 is reduced, so that the dynamic friction between the print head 3 and the print medium 100 is reduced, and the first portion is restored to its original shape under the action of its own elastic force. During this process, the printhead 3 may vibrate with respect to the printing medium 100, thereby affecting the printing quality of the printer.

To solve the above-described 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, the platen unit 2 being 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 embossing unit 2 display printing information on the printing medium 100 in a mode of clamping the printing medium 100 by pressure; and a pressing unit 4 disposed on the frame 1, and including a supporting member supported on the frame 1 and having a first portion supporting one end of the printing unit in the first direction, and a biasing member 43 configured to be moved away from or pressed against the pressing unit 2 by rotating around 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 to urge the printing unit in a direction of rotating against the platen unit 2 through the first portion. Since the printing unit is configured to move away from or press against the platen unit 2 by rotating about the other end of the first portion, when the print head 3 presses the platen unit 2 and the print medium 100 slides relative to the print head 3, the first portion is vibrated, and the vibration of the first portion is transmitted to the second portion, and the second portion is vibrated together, but the printer is provided with the urging member 43, and the urging member 43 drives the second portion in a direction away from the frame 1, and thereby the second portion and the frame 1 are abutted against each other. This arrangement can absorb the vibration energy of the second portion, and thus can reduce the vibration amplitude of the first portion, improving the printing effect of the printhead 3.

The first direction is the urging direction of the urging member 43.

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

Alternatively, the force application member 43 includes a first elastic member 431 and a jack group, and the first elastic member 431 drives the jack group to move in a direction approaching the frame 1. In this embodiment, the first elastic member 431 is a spring, the supporting seat 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 ejector rod set and abuts the ejector rod set to the frame 1. This arrangement allows no relative vibration to be generated between the support 421 and the frame 1. Specifically, the first elastic member 431 is a compression spring,

alternatively, the ejector rod group includes an ejector rod 432 and a rolling member 433, one end of the ejector rod 432 is in running fit with the rolling member 433, and the first elastic member 431 drives the other end of the ejector rod 432 and makes the rolling member 433 abut against the frame 1. In this embodiment, the rolling member 433 can reduce friction between the jack 432 and the frame 1. Specifically, the rolling member 433 is a rolling bearing or a roller.

For the specific structure of the connecting piece 422, optionally, the connecting piece 422 includes 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. In this embodiment, two linear guide shafts are disposed on the base at intervals along the direction of the printhead 3 approaching the platen unit 2, two linear bearings 4222 are disposed on the base, and two linear bearings 4222 are respectively sleeved on the two linear guide shafts and can 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 fixedly connected to the two linear bearings 4222 respectively. The support 421 can slide on the frame 1.

Further, optionally, the connecting piece 422 further includes a third elastic piece 4223, the third elastic piece 4223 is sleeved on the lifting guide shaft 4221, and the third elastic piece 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 in a direction approaching the cam. This arrangement can make the support 421 and the cam always abut against each other, thereby improving the driving stability of the driving member 423. Specifically, the third elastic member 4223 is a spring, and the spring is sleeved on the linear guide shaft, and two ends of the spring are respectively abutted against the frame 1 and the support seat 421.

For the specific structure of the driving piece 423, optionally, the driving piece 423 includes a stepping motor, a cam and a roller, the cam is rotationally disposed on the frame 1 and located below the supporting seat 421, the roller is rotationally disposed on the supporting seat 421, the roller is abutted to 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 supporting seat 421 along the axis of the linear guide shaft. And thus the relative positions of the support 421 and the frame 1 can be adjusted.

Optionally, the printing unit includes a swing rod 411, the supporting component includes an adjusting structure 412 and a deforming member 413, one end of the swing rod 411 is fixedly connected with the printing head 3, the other end of the swing rod 411 is fixedly connected with one end of the first portion, and the other end of the first portion is hinged with the second portion. The supporting seat 421 is slidably matched with the frame 1 through the connecting piece 422, the adjusting structure 412 can adjust the angle of the swinging rod 411 relative to the supporting seat 421, the deformation piece 413 is configured between the supporting seat 421 and the swinging rod 411, and when the printing head 3 is pressed on the imprinting unit 2, the deformation piece 413 is configured to elastically deform between the supporting seat 421 and the swinging rod 411. When the printer works, the imprinting unit 2 drives the printing medium 100 and the printing head 3 to do relative motion, so that the printing head 3 is deformed under the driving of the imprinting unit 2, and along with the aggravation of the deformation degree of the printing head 3, the dynamic friction force between the printing head 3 and the printing medium 100 is gradually reduced, so that the printing head 3 and the printing medium 100 vibrate relatively. Since the deformation member 413 is elastically deformed between the support 421 and the swing lever 411, the deformation member 413 can absorb the shock transmitted from the printhead 3 to the swing lever 411. And thus the relative vibration between the printing head 3 and the printing medium 100 can be reduced, and the printing quality of the printing head 3 can be improved.

Alternatively, the deformation member 413 includes one or more of foam, silicone rubber, a spring, a torsion spring, a plate spring, a spring piece formed on the support 421, and a spring 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 rod 411 and the support 421. After the relative position between the printhead 3 and the platen unit 2 is adjusted by sliding the support 421, the angle between the swing rod 411 and the support 421 can be adjusted by the adjusting structure 412, so that a predetermined pressure value is reached between the printhead 3 and the platen unit 2. In this process, since the swing lever 411 and the support 421 are hinged, a gap exists between the swing lever 411 and the support 421, and thus a relative movement between the printhead 3 and the printing medium 100 is easily caused. In the present embodiment, a second elastic member 4121 is provided between the swing lever 411 and the support 421. This arrangement reduces the relative movement of the swing lever 411 and the support 421. Specifically, the second elastic member 4121 is a compression spring.

Optionally for the specific structure of the adjustment structure 412. The adjusting structure 412 further includes an adjusting paddle 4122 and a limiting post 4123, wherein one end of the adjusting paddle 4122 is pivoted to the supporting seat 421, the adjusting paddle 4122 is provided with a limiting chute, and the limiting post 4123 is disposed on the swinging rod 411 and penetrates through the limiting chute. In this embodiment, the angle between the adjusting plate 4122 and the supporting seat 421 is adjusted, so that the limiting post 4123 slides in the limiting chute, and the angle between the swinging rod 411 and the supporting seat 421 is adjusted.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (9)

1. A printer, comprising:

a frame (1);

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

a printing unit having a printing head (3), the printing head (3) and the embossing unit (2) displaying printing information on a printing medium (100) by clamping the printing medium (100) by pressure; a kind of electronic device with high-pressure air-conditioning system

A pressing unit (4) disposed on the frame (1), comprising:

a support member supported on the frame (1) and having a first portion supporting one end of the printing unit in the first direction and a second portion configured to be moved away from or pressed against the platen unit (2) by rotating around the other end of the first portion; a kind of electronic device with high-pressure air-conditioning system

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

the force application component (43) is configured to apply force to the second part so as to apply force to the printing unit in a direction of pressing against the rotation of the imprinting unit (2) through the first part, the force application component (43) comprises a first elastic piece (431) and a push rod group, the push rod group is arranged between the frame (1) and the second part, and the first elastic piece (431) drives the push rod group to move in a direction approaching to the frame (1).

2. Printer according to claim 1, characterized 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 embossing 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 frame (1).

3. Printer according to claim 1 or 2, wherein said printing unit comprises a swinging rod (411), said support means comprising an adjustment structure (412) and a deformation member (413), one end of said swinging rod (411) being fixedly connected to said printing head (3), the other end of said swinging rod (411) being fixedly connected to said first portion, said adjustment structure (412) enabling said swinging rod (411) to rotate with respect to said second portion or to be angularly fixed with respect to said second portion, said deformation member (413) being arranged between said second portion and said swinging rod (411), said deformation member (413) being arranged to elastically deform between said second portion and said swinging rod (411) when said printing head (3) is pressed against said embossing unit (2).

4. A printer according to claim 3, wherein the deformation member (413) comprises one or more of foam, silicone rubber, springs, torsion springs, leaf springs, a spring plate formed on the second portion, and a spring plate formed on the swing lever (411).

5. A printer according to claim 3, 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 pivoted with the second portion, a limiting chute is arranged on the adjusting dial (4122), the limiting post (4123) is arranged on the swinging rod (411) and penetrates through the limiting chute, and the second elastic member (4121) is arranged between the second portion and the swinging rod (411).

6. Printer according to claim 2, characterized in that said second portion comprises a support seat (421), a connecting element (422) and a driving element (423), said connecting element (422) slidingly engaging said support seat (421) with said frame (1), said driving element (423) driving said support seat (421) to slide.

7. The printer according to claim 6, 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 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).

8. The printer according to claim 7, 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 support base (421) and the frame (1).

9. Printer according to any one of claims 6 to 8, characterized in that said driving member (423)

Comprises a cam which is rotatably arranged on the frame (1) and is positioned below the supporting seat (421),

the supporting seat (421) is abutted with the cam.