CN109941002A - a miniature printer - Google Patents

Abstract

The invention discloses a micro-printer, comprising a casing. Inside the casing is a printing head for realizing printing and a first driving part connected with the printing head and used for driving the printing head to move in a horizontal direction. A momentum adjustment device that realizes momentum adjustment with the print head to prevent the paper and the casing from sliding relative to each other. The above-mentioned micro-printer has a simple structure and is easy to maintain, which can further reduce the size and weight of the printer, and has almost no requirements on the printing medium, which can further improve its portability and expand its applicable objects; at the same time, such a setting method is not easy to appear printer and paper. The slippage situation can improve the stability of the system and further ensure high-precision printing quality.

Description

a miniature printer

technical field

The invention relates to the technical field of micro-printing, in particular to a micro-printer.

Background technique

At present, the development of printer technology is very mature, and printers are indispensable in learning and office work. With the development of people's production and life needs, printers need to become smaller and more portable.

At present, the printers on the market are large in size. Even the portable printers on the market are mostly photo printers that use thermal transfer printing. Due to the printing mode, the printable media is only special photo paper, which can be widely used. However, other portable printers on the market that use laser printing or inkjet printing are inseparable from the original printer model, and their structure is still complicated and the volume is still large and does not allow us to carry it with us. Canon IP110 printer continues the traditional printer structure, consisting of automatic paper feeding system (composed of paper feeder, paper feeding stepper motor, paper pick-up roller and other components), paper guide, paper feeding roller and several motors and transmission devices, IP110 printer It is a product that miniaturizes the size of traditional printers to the extreme. It can be packaged in a document, and the reference volume is 322*185*62mm. However, the volume of 322*185*62mm is still too large to fit in a briefcase, and it is not portable. The printer can still only print standard A4 paper and cannot print on media of any shape. At the same time, this structure Continuing the tradition, it is more complicated, heavy and difficult to maintain.

Therefore, how to avoid affecting the portability of the printer due to the complicated structure and excessive weight of the printer is a technical problem that those skilled in the art need to solve at present.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a micro-printer, which can solve the problems of affecting the portability of the printer due to the complicated structure and excessive weight of the printer. The micro-printer has a simple and compact structure, can further reduce the size and weight of the printer, and can further improve its portability and expand its applicable objects while ensuring the printing accuracy.

In order to achieve the above purpose, the present invention provides a micro-printer, comprising a casing, a print head used for printing is provided inside the casing, and a print head is connected to the print head to drive the print head to move in a horizontal direction. The first driving part is also provided with a momentum adjustment device for realizing momentum adjustment with the print head to prevent the paper and the casing from sliding relative to each other.

Preferably, the momentum adjustment device includes an adjustment block disposed above the print head and used to move in a direction opposite to the movement direction of the print head, and the center of mass of the adjustment block is the same as that of the print head. The centroids are located in the same vertical plane.

Preferably, the momentum adjusting device further comprises a second driving part connected with the adjusting block and used to drive the adjusting block to move in a direction opposite to the moving direction of the print head.

Preferably, the first driving part is fixedly mounted on the housing.

Preferably, the first driving part is connected with the print head through a transmission mechanism.

Preferably, the transmission mechanism includes a slider for being fixedly connected with the print head, and a first screw rod for driving the slider to move back and forth in a horizontal direction.

Preferably, the first screw rod is fixed to the first driving part, and the first driving part is used to drive the first screw rod to rotate forward and reverse.

Preferably, the second driving part is connected with the adjusting block through a second screw rod.

Preferably, a control part connected to the first driving part and the second driving part and used to control the movement of the first driving part and the second driving part at a preset speed is further included.

Preferably, the momentum adjustment device is detachably connected to the interior of the housing.

Compared with the above-mentioned background technology, the present invention designs a micro-printer according to the different requirements of portable printers. Due to the excessive volume and weight of the traditional portable printers, the complex structure and the high requirements for the medium, a micro-printer is used. It is necessary to realize a micro-printer that can realize a simple and compact structure and further reduce the size and weight of the printer.

Specifically, the above-mentioned micro-printer includes an external casing, and the inside of the casing is provided with a printing head, a first driving part and a momentum adjusting device; wherein, the printing head can realize the printing of paper by ink jetting; the first driving part Connected with the print head, the first driving part is used to drive the print head to move back and forth linearly in the horizontal direction; further, the interior of the casing is also provided with a momentum adjustment device, because when the print head moves at a high speed, the printer will generate a huge inertial force, This will cause the paper and the casing to move relative to each other, which greatly reduces the printing quality. The momentum adjustment device can achieve momentum adjustment with the print head, that is, by reducing the total momentum of the system, the paper and the casing can be prevented from sliding relative to each other. The micro-printer has a simple structure and is easy to maintain, which can further reduce the size and weight of the printer, and has almost no requirements on the printing medium. While ensuring the printing accuracy, it can further improve its portability and expand its applicable objects; at the same time, such a setting The method is less prone to slippage between the printer and the paper, which can improve the stability of the system and further ensure high-precision printing quality.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

FIG. 1 is a schematic diagram of the overall structure of a micro printer disclosed in an embodiment of the present invention;

Fig. 2 is the momentum schematic diagram along the horizontal direction of each component in the micro-printer system in Fig. 1;

FIG. 3 is a schematic structural diagram of the print head, the transmission mechanism and the first driving part in FIG. 1 .

in:

1-shell, 2-print head, 3-slider, 4-first screw rod, 5-first drive part, 6-adjustment block, 7-second screw rod, 8-second drive part.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The core of the present invention is to provide a micro-printer, which can solve the problems affecting the portability of the printer due to the complicated structure and excessive weight of the printer. The micro-printer has a simple and compact structure, can further reduce the size and weight of the printer, and can further improve its portability and expand its applicable objects while ensuring the printing accuracy.

In order to make those skilled in the art better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

It should be noted that the directional terms such as "upper, lower, left, right" described below are all defined based on the drawings in the description.

Please refer to FIG. 1, FIG. 2 and FIG. 3. FIG. 1 is a schematic diagram of the overall structure of a micro-printer disclosed in an embodiment of the present invention; FIG. 2 is a schematic diagram of the momentum along the horizontal direction of each component in the micro-printer system in FIG. It is a schematic structural diagram of the print head, the transmission mechanism and the first driving part in FIG. 1 .

The micro-printer provided by the embodiment of the present invention includes a casing 1 arranged on the outside, and a printing head 2 and a first driving part 5 are arranged inside the casing 1; wherein, the printing head 2 can realize the printing of paper by inkjet, Specifically, for example, in a piezoelectric print head, the inside of the print head 2 is filled with ink and has a certain negative pressure. When the terminal gives a certain signal, the piezoelectric unit can be deformed, so that the ink can be removed from the print head. 2, so that the ink droplets are sprayed onto the paper; the first driving part 5 is connected with the printing head 2, and the first driving part 5 is used to drive the printing head 2 to move back and forth linearly in the horizontal direction to realize printing.

Further, the interior of the housing 1 is also provided with a momentum adjustment device. Considering that the above-mentioned micro-printer will generate a huge inertial force when the print head 2 moves at a high speed, the static friction force provided by the medium to the printer system is not enough to resist the inertial force. When , it will cause the relative movement of the casing 1 and the paper, so as to greatly reduce the printing quality; therefore, according to the momentum theorem, by setting the momentum adjustment device, the momentum adjustment device can realize the momentum adjustment with the print head 2, that is, through the momentum adjustment device and the print head 2. The print head 2 realizes the function of reducing the total momentum of the system, so that the inertial force of the printer can be further reduced to prevent the paper and the casing 1 from sliding relative to each other.

Of course, in order to facilitate the replacement of the momentum adjustment device, the momentum adjustment device may be configured to be detachably connected to the interior of the housing 1 .

The micro-printer is simple in structure and easy to maintain, and has almost no requirements on the printing medium. As long as the medium can be inked, it can be printed on it, which can further reduce the size and weight of the printer, and can further improve its portability while ensuring the printing accuracy. and expand its applicable objects; at the same time, such a setting method is not easy to cause the printer and the paper to slip, which can improve the stability of the system and further ensure high-precision printing quality.

In the embodiment of the present invention, the momentum adjustment device includes an adjustment block 6, the adjustment block 6 can be arranged above the print head 2, and the adjustment block 6 can move in a direction opposite to the movement direction of the print head 2, and the adjustment block 6 The centroid of 6 and the centroid of the print head 2 are set in the same vertical plane; of course, according to the actual structural needs of the micro printer, the position of the adjustment block 6 can be adjusted according to the setting position of the print head 2, and is not limited to The premise of the above setting is that the center of mass of the adjustment block 6 and the center of mass of the print head 2 can be set in the same vertical plane.

In addition, the adjustment block 6 can be set as a rectangular or square block, as shown in FIG. 1 , the direction of the arrow at the top in the figure is the movement direction of the adjustment block 6 , and the direction of the arrow at the bottom in the figure is the movement direction of the print head 2 .

Specifically, the momentum adjusting device further includes a second driving part 8, the second driving part 8 is connected with the adjusting block 6, and the second driving part 8 is used to drive the adjusting block 6 to move in the opposite direction to the moving direction of the print head 2; That is to say, in the micro-printer system, the first driving part 5 can drive the print head 2 to reciprocate linearly in the horizontal direction, while the second driving part 8 can drive the adjusting block 6 to reciprocate linearly in the horizontal direction, and adjust the The direction of movement of the block 6 is always opposite to the direction of movement of the print head 2 .

Of course, according to actual needs, both the first driving part 5 and the second driving part 8 can be set as micro-motors, and the micro-motors can be set to be fixedly installed inside the casing 1, and the fixed installation methods of the micro-motors and the casing 1 can refer to The relevant technical requirements of the existing part will not be expanded here.

More specifically, in order to realize the horizontal reciprocating motion of the print head 2, the first driving part 5 is connected with the print head 2 through a transmission mechanism, and the transmission mechanism includes a slider 3 and a first screw rod 4; wherein, the first screw rod 4 Connected with the first drive part 5, the first drive part 5 can drive the first screw 4 to rotate forward and reverse; the first screw 4 is connected with the slider 3, and the slider 3 is used for fixing the print head 2, according to The function of the screw, that is, the screw can convert the rotary motion into the linear reciprocating motion of the slider 3, and the first screw 4 can drive the slider 3 to move back and forth in the horizontal direction, which can realize the reciprocating movement of the print head 2 in the horizontal direction. Purpose.

Correspondingly, in order to realize the horizontal reciprocating motion of the adjusting block 6, the second driving part 8 is connected with the adjusting block 6 through the second screw rod 7; of course, according to actual needs, the first driving part 5 and the second driving part 8 can also have For other different setting methods, the premise is that the above functions can be satisfied. The connection between the two screw rods 7 and the adjusting block 6 can refer to the relevant technical requirements of the existing part, which will not be discussed in this article.

In order to optimize the above-mentioned embodiment, the micro-printer further includes a control part, which is connected with the first driving part 5 and the second driving part 8 . On the one hand, the control part is used to control the first driving part 5 at a preset speed and direction. Movement, on the other hand, the control part is used to control the second driving part 8 to move at a preset speed and direction.

Specifically, the control unit may include a power switch, a speed control switch and a steering switch; wherein the power switch is used to control the opening and closing of the micro motor, the speed control switch is used to control the rotation speed of the micro motor, and the steering switch is used to adjust the rotation of the micro motor direction, i.e. forward and reverse rotation.

In addition, the power switch, the speed control switch and the steering switch can be arranged on the outer side wall of the housing 1; The premise is that the stability and safety of the wiring can be guaranteed, and the specific wiring connection can refer to the relevant technical requirements of the existing part.

In this way, the relative positions of the first driving part 5 , the second driving part 8 and their transmission mechanisms are fixed with the casing 1 , and the casing 1 and the paper do not move relative to each other. Therefore, the first driving part 5 and the second driving part 8. The absolute speed of the transmission mechanism, the casing 1, and the paper of both are 0. The print head 2 and the adjustment block 6 both start to move from rest. According to the momentum theorem,

F×t=∑m _i ×Δv _i =∑P _i =P ₂ +P ₆ =m ₂ Δv ₂ +m ₆ Δv ₆ ;

When the print head 2 moves with a large acceleration, the adjustment block 6 moves in the opposite direction with a larger acceleration, and within the same time t Δv ₂ >Δv ₆ , because the speed direction of the print head 2 and the adjustment block 6 are opposite, that is, Δv ₂ Contrary to the sign of Δv ₆ , the total momentum ∑P _i of the system becomes smaller, therefore, the inertial force F will decrease, so that it is not easy for the printer to slip with the paper or medium, which can improve the stability of the system and ensure that the High-precision print quality.

In addition, it should be noted that, considering that the weight of the micro-printer will not be too large when it is stationary, the mass of the adjustment block 6 should be smaller than that of the print head 2. According to the conservation of momentum, the greater the speed change rate of the adjustment block 6, the more Better momentum offset effect.

It should be noted that, in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such existence between these entities. The actual relationship or sequence.

The micro-printer provided by the present invention has been described in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (10)

1. a kind of mini-printer, which is characterized in that including shell (1), the inside of the shell (1) is equipped with to realize printing Print head (2) and connect with the print head (2), to drive that the print head (2) moves in the horizontal direction first Driving portion (5) is additionally provided with to realize that momentum is adjusted, to prevent paper and the shell (1) relatively sliding with the print head (2) The momentum regulating device of shifting.

2. mini-printer according to claim 1, which is characterized in that the momentum regulating device includes being set to described beat Print the top of head (2), the adjusting block (6) that the direction opposite with the direction of motion of the print head (2) to edge moves, and described The mass center of adjusting block (6) and the mass center of the print head (2) are set in same perpendicular.

3. mini-printer according to claim 2, which is characterized in that the momentum regulating device further includes and the tune Locking nub (6) connection, the direction to drive the adjusting block (6) edge opposite with the direction of motion of the print head (2) move Second driving portion (8).

4. mini-printer according to claim 3, which is characterized in that first driving portion (5) is fixedly installed in institute State shell (1).

5. mini-printer according to claim 4, which is characterized in that first driving portion (5) passes through transmission mechanism It is connect with the print head (2).

6. mini-printer according to claim 5, which is characterized in that the transmission mechanism include to the printing It head (2) affixed sliding block (3) and is cooperatively connected with the sliding block (3), to drive the sliding block (3) round-trip in the horizontal direction The first screw rod (4) of movement.

7. mini-printer according to claim 6, which is characterized in that first screw rod (4) is fixed in described first Driving portion (5), and first driving portion (5) is to drive the first screw rod (4) positive and negative rotation.

8. mini-printer according to claim 7, which is characterized in that second driving portion (8) passes through the second screw rod (7) it is connect with the adjusting block (6).

9. mini-printer according to claim 8, which is characterized in that further include and first driving portion (5) and institute The second driving portion (8) are stated to be connected, transport to control first driving portion (5) and second driving portion (8) with pre-set velocity Dynamic control unit.

10. mini-printer according to any one of claims 1 to 9, which is characterized in that the momentum regulating device is removable It is connected to the inside of the shell (1) with unloading.