CN211518921U - Print stable ultra-thin print module of color and luster and printer - Google Patents

Abstract

The utility model relates to an ultra-thin printing module with stable printing color, which comprises a frame, a printing roller, a bracket and a printing head component, wherein one of the printing roller and the printing head component is arranged on the frame, the other one is arranged on the bracket, and the rear end part of the bracket is rotatably hinged on the frame; be equipped with first installation department on the support front end portion, the frame front end portion is equipped with the second installation department, and first installation department is located below the second installation department, and first installation department forms the installation space of pressure spring with the second installation department, and on the installation space was located to the pressure spring, thereby it made the centre gripping beat printing paper the printing roller and the thermal head hug closely beat printing paper for the support is exerted pressure, the utility model discloses it is stable to print the color and luster. The utility model also provides an ultra-thin printer.

Description

Print stable ultra-thin print module of color and luster and printer

Technical Field

The utility model belongs to the technical field of the printer technique and specifically relates to a print stable ultra-thin print module of color and luster and printer.

Background

The working principle of the existing thermal printer is that a semiconductor heating element is arranged on a printing head, and a required pattern can be printed after the printing head is heated and contacts thermal printing paper, so that the printing head and the printing paper are required to be in line contact to the maximum extent, and the printing quality is improved.

In view of the above problems, the invention patent publication No. CN107639941A discloses a "photo printer" for printing an image or a text by applying heat of a predetermined temperature to a paper sheet in which a hue (color or shade) is expressed by thermal induction, the photo printer including: a substrate accommodating the paper; a pickup roller protruding from a bottom surface of the base plate to feed the accommodated paper forward; a paper pressing roller for discharging the paper supplied by the paper pickup roller forward; a head portion formed on an upper portion of the platen roller and configured to apply heat to the paper; a swing bracket having a mounting portion formed at a front side thereof to which the head portion is coupled, and a coupling portion formed at a rear side thereof to be rotatably coupled to the base plate so that the head portion swings; and a pressing member for pressing the head portion downward to be in close contact with the paper fed between the head portion and the platen roller. It has the following disadvantages:

the head is pressed downwards by the tension spring, and the thickness of printing paper is very small, so that the length of the whole tension spring is short, and the tension spring is required to draw hooks from top to bottom, so that the number of turns of the tension spring is small, the elastic coefficient of the spring is in inverse proportion to the number of turns of the spring, the number of turns is small, the value of the elastic coefficient is large, and under the condition that the manufacturing errors of the springs in the same batch are the same, the elastic coefficient is large, so that the elastic deviation of the spring is large, the printing concentration is different easily caused by assembling a printer, and the printing effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a print stable ultra-thin print module of color and luster and printer, the not good problem of effect is printed when solving foretell ultra-thin printing.

In order to solve the above problems, the present invention provides an ultra-thin printing module with stable printing color, which comprises a frame, a printing roller, a bracket and a printing head assembly, wherein one of the printing roller and the printing head assembly is arranged on the frame, the other one of the printing roller and the printing head assembly is arranged on the bracket, and the rear end of the bracket is rotatably hinged on the frame; be equipped with first installation department on the support front end portion, the frame front end portion is equipped with the second installation department, first installation department is located below the second installation department, first installation department forms the installation space of pressure spring with the second installation department, the pressure spring is located on the installation space, it gives thereby the support is exerted pressure and is made the centre gripping beat printing paper the printing roller with the printing component is hugged closely beat printing paper.

Further, the printing head assembly is arranged at the front end of the bracket and is arranged above the printing roller.

Further, first installation department is the bottom of the installing frame of fretwork, the second installation department is located upper end in the installing frame, the second installation department passes the installing frame forms the installation space of pressure spring.

Furthermore, the installing frame top is equipped with the groove of stepping down, the second installation department is whole or partly to be located in the groove of stepping down.

Furthermore, the bottom in the installation frame and the second installation part are provided with a pressure spring fixing part in opposite directions.

Furthermore, the front end of the support extends towards the bottom of the frame to form a support arm provided with a first mounting part.

Furthermore, a reinforcing edge is arranged on the support arm.

Further, the printer head assembly further comprises a clamping piece which keeps the printing head assembly at a preset gap with the printing roller when no printing paper exists.

Furthermore, the clamping stop piece is a protrusion arranged on the printing head assembly, a supporting part is arranged on the frame, and the protrusion abuts against the supporting part of the frame.

The utility model provides an ultra-thin printer, include the ultra-thin print module of printing the color and luster stability.

The utility model provides a beneficial effect that technical scheme brought is:

1. the utility model discloses a support pin joint in on the base, and first installation department on the support is located below the second installation department on the base to increased the installation space of pressure spring, increased the number of turns of pressure spring, thereby the elasticity coefficient diminishes and reduces the elasticity value deviation that a batch of springs produced because of manufacturing error great. The pressure spring is changed, because the pressure spring does not have the couple, the number of turns of increase spring has reduced the elastic coefficient, has reduced the problem that printing concentration differs when the ultra-thin printing that arouses because of spring manufacturing error, has improved the printing effect.

2. The clamping fastener is arranged, so that the thermal head of the printing head component keeps a set gap with the printing roller when no printing paper exists, the problem that the printing quality is poor due to long-term contact between the thermal head and the printing roller when no printing paper exists is avoided, and the service life of the printer is influenced.

Drawings

Fig. 1 is the structure diagram of the ultra-thin printing module of the present invention.

Fig. 2 is the utility model discloses ultra-thin print module's decomposition schematic diagram.

Fig. 3 is a schematic structural diagram of the bracket of the present invention.

Fig. 4 is a central axis sectional view of the present invention.

The labels in the figure are: 1. a frame; 2. a support; 3. a printhead assembly; 4. a print roller; 5. a pressure spring; 6. a support arm; 13. A second mounting portion; 14. a support portion; 21. bolt holes; 22. a fulcrum structure; 23. a first mounting portion; 24. a reinforcing edge; 25. a yielding groove; 26. a hinge point; 31. a swing frame; 32. a thermal head; 33. a fastener; 51. a pressure spring fixing part; 231. and (5) installing the frame.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

With reference to fig. 1 to 4, the utility model provides a print embodiment of ultra-thin printing module that color and luster is stable, including frame 1, locate printing roller 4 on frame 1, support 2 and locate support 2 preceding tip on beat printer head assembly 3, support 2 back tip rotatably articulates on frame 1 and makes and locate the printer head assembly 3 on support 2 preceding tip and be located the top of printing roller 4, it includes swing span 31 and thermal head 32 to beat printer head assembly 3, thermal head 32 includes the ceramic plate and locates the heating resistor on the ceramic plate, heating resistor designs along beating printer paper width direction, in order to provide the required heat of beating printer paper, swing span 31 fastens on support 2 through bolt hole 21 on support 2, be equipped with fulcrum structure 22 at support 2 front end, preferably, the fulcrum structure includes screw and screw hole, the screw hole is located on support 2. The middle part of beating printer head assembly 3 pushes up and touches on fulcrum structure 22, and 3 pressures of printer head assembly are applyed to fulcrum structure 22, can adjust and beat printer head assembly 3 front end and support 2's clearance, are provided with a pressure spring 5 at the front end of support 2, pressure spring 5 provides the elasticity that makes printer head assembly 3 on the support 2 be close to print roller 4 on the frame 1, when beating printing paper entering beat printer head assembly 3's thermal head 32 and print roller 4 between, and thermal head 32 and print roller 4 hug closely and beat printing paper, and just can print out required pattern after thermal head 32 heats and makes contact thermal printing paper through elasticity.

In this embodiment, a first mounting portion 23 is disposed on a front end portion of the support 2, a second mounting portion 13 is disposed on a front end portion of the frame 1, the first mounting portion 23 is a bottom portion of the hollow mounting frame 231, the second mounting portion 13 is located at an upper end of the mounting frame 231, the second mounting portion 13 may be a fixing strip fixed on the frame 1, the second mounting portion 13 penetrates the mounting frame 231 to form a mounting space of the compression spring 5, the frame 1 is fixed, the second mounting portion 13 is also fixed, the support 2 is hinged on the frame 1 and vertically rotates around a hinge point 26, the first mounting portion 23 vertically rotates and swings with the support 2 to compress the compression spring 5 with the second mounting portion 13 to form an elastic force, the elastic force is maintained in order to enable the print head assembly 3 to print paper with different thicknesses, when printing paper passing through between the print head assembly 3 and the print roller 4, the first mounting portion 23 is disposed under the, the first installation part 23 and the second installation part 13 form an installation space of the pressure spring 5, the pressure spring 5 is arranged on the installation space, when printing paper passes through, according to the thickness of the printing paper, the printing head component 3 is sensitively lifted upwards, the support 2 rotates upwards and swings, the elastic force of the printing head component 3 towards the printing roller 4 needs to be kept, the printing effect is ensured, when the support 2 rotates upwards and swings, namely the first installation part 23 rotates upwards and swings, and the second installation part 13 is fixed, at the moment, the pressure spring 5 is compressed, the elastic force of the pressure spring 5 is increased, the downward elastic force of the printing head component 3 is increased, the gap between the printing head component 3 upwards and the printing roller 4 is just suitable for the thickness of the printing paper, the printing effect is ensured, if the second installation part 13 is positioned below the first installation part 23, the printing head component 3 is automatically close to the printing roller 4 by the support 2, the unable spring action that realizes of pressure spring 5, just become and need change the extension spring into, because the thickness of beating printing paper is all very little, so holistic extension spring length ratio is shorter, need the drag hook about the extension spring again, consequently, the number of turns of extension spring is less, the elastic coefficient of spring and the number of turns of spring become the inverse ratio, the number of turns is less, the value of elastic coefficient is big more, the elastic value deviation that the spring will cause the spring of same batch of spring manufacturing error is also big more, the concentration that the assembly printer caused printing easily is different, the printing effect has been influenced, consequently, the number of turns that need increase the spring, the elastic coefficient has been reduced, because pressure spring 5 does not have the couple, all used pressure spring 5, the problem that printing concentration differs when having reduced the ultra-thin printing that arous.

Referring to fig. 3 and 4, according to the performance of the compression spring 5, opposite compression spring fixing portions 51 are arranged at the bottom and the second mounting portion 13 in the mounting frame 231, the compression spring 5 is just arranged between the two compression spring fixing portions 51, the compression spring fixing portions 51 are preferably in a shape of a raised conical block, and the edge of the compression spring fixing portion is provided with a circular arc, so that the compression spring 5 can be prevented from falling off, the sharp corner of the mounting can be prevented from being cut, and the mounting is more attractive. In addition, in order to conveniently disassemble and assemble the pressure spring 5 and the bracket 2, the top of the mounting frame 231 is provided with the abdicating groove 25, part or all of the second mounting part 13 is positioned in the abdicating groove 25, the second mounting part 13 can be arranged at the top of the abdicating groove 25 during mounting, after the pressure spring 5 is mounted, the first mounting part 23 jacks up the pressure spring 5 to enable the second mounting part 13 to be far away from the top of the abdicating groove 25, and therefore the mounting space of the pressure spring 5 can be increased as much as possible on the premise of ensuring the strength of the second mounting part 13.

The position for installing the pressure spring 5 is arranged at the foremost end, and a support arm 6 provided with a first installation part 23 is formed at the front end of the bracket 2 and extends towards the bottom direction of the frame 1.

Moreover, a certain channel needs to be reserved for outputting printing paper, only one smaller mounting plate is left in the first mounting portion 23, the mechanical property is lower at the moment, in order to improve the bearing capacity, rigidity and anti-cutting-resistant capacity of the mounting plate, the supporting arm 6 is provided with the reinforcing edge 24, and the reinforcing edge 24 is arranged at the side edge position, close to the outer edge, of the first mounting portion 23 in consideration of the overall layout.

As shown in fig. 4, if the thermal head 32 of the print head assembly 3 and the print roller 4 are in direct contact after printing, the colloid on the print roller 4 or the adhesive on the colloid is easily softened by the heat of the thermal head and adheres to the thermal head, which affects the next printing, the print roller 4 is in colloid shape, the colloid at the contact part is easily softened to form a concave straight line after being in direct contact with the thermal head 32 for a long time, the print quality is affected in the next printing, for which purpose a stop 33 is provided on the printhead assembly 3, said stop 33 preferably being a projection, a supporting part 14 is fixedly arranged at the front end part of the frame 1, so that the bulge is abutted against the supporting part 14 of the frame 1, a preset gap is kept between the thermal head 32 of the printing head assembly 3 and the printing roller 4 under the action of the elastic force of the pressure spring 5 when no printing paper exists, and the service life of the printer is prolonged.

The utility model discloses a another embodiment can be that print head subassembly 3 fixed mounting is on frame 1, and print roller 4 is located the upper portion of beating print head subassembly 3 thermal head 32, can use 5 structures of same pressure spring to apply one and make print roller 4 and beat print head subassembly 3 thermal head 32 and hug closely the pressure of beating printing paper simultaneously.

The utility model also provides an ultra-thin printer, including the casing with locate the foretell ultra-thin print module who prints the color and luster stability in the casing.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An ultrathin printing module with stable printing color comprises a frame (1), a printing roller (4), a bracket (2) and a printing head assembly (3), wherein one of the printing roller (4) and the printing head assembly (3) is arranged on the frame (1), and the other one is arranged on the bracket (2), and is characterized in that the rear end part of the bracket (2) is rotatably hinged on the frame (1);

be equipped with first installation department (23) on support (2) front end portion, frame (1) front end portion is equipped with second installation department (13), first installation department (23) are located below second installation department (13), first installation department (23) form the installation space of pressure spring (5) with second installation department (13), pressure spring (5) are located on the installation space, it gives thereby support (2) exert pressure and make the centre gripping beat printing paper print roller (4) with print head subassembly (3) are hugged closely beat printing paper.

2. Ultra-thin print module with stable printing colour according to claim 1, characterized in that the print head assembly (3) is arranged at the front end of the frame (2) above the print roller (4).

3. The ultra-thin printing module with stable printing color and luster according to claim 1, wherein the first installation part (23) is the bottom of a hollowed installation frame (231), the second installation part (13) is positioned at the upper end in the installation frame (231), and the second installation part (13) penetrates through the installation frame (231) to form an installation space of the pressure spring (5).

4. The ultra-thin printing module with stable printing color and luster according to claim 3, wherein the top of the mounting frame (231) is provided with a yielding groove (25), and the second mounting part (13) is wholly or partially arranged in the yielding groove (25).

5. The ultra-thin printing module with stable printing color according to any one of claims 1 to 4, wherein the first mounting portion (23) and the second mounting portion (13) are provided with a compression spring fixing portion (51) in opposition.

6. The ultra-thin print module with stable printing color according to claim 1, wherein the front end of the frame (2) extends towards the bottom of the frame (1) to form a support arm (6) with a first mounting portion (23).

7. Ultra-thin print module with stable print shades according to claim 6, characterized by the fact that the arm (6) is provided with a reinforcing edge (24).

8. The ultra-thin print module with stable printing color according to claim 1 or 2, further comprising a latch (33), wherein the latch (33) keeps the print head assembly (3) at a predetermined gap from the print roller (4) when there is no printing paper.

9. The ultra-thin print module with stable printing color according to claim 8, wherein the stop (33) is a protrusion provided on the print head assembly (3), and the frame (1) is provided with a support (14), and the protrusion abuts against the support (14) of the frame (1).

10. An ultra-thin printer comprising a housing, characterized by further comprising the ultra-thin print module of any of claims 1 to 9 having a stable print tint.

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