CN113103770A

CN113103770A - Braille typewriter device

Info

Publication number: CN113103770A
Application number: CN202110457643.9A
Authority: CN
Inventors: 潘铭杰; 姚秋艳; 王惠楠; 吕娟; 戴园城
Original assignee: Shanghai Jian Qiao University
Current assignee: Shanghai Jian Qiao University
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-07-13

Abstract

The invention relates to a braille typewriter device which is used for printing braille on paper and comprises a bracket, a paper feeding component, a braille printing component and a controller, wherein the paper feeding component, the braille printing component and the controller are arranged on the bracket; the Braille printing component is arranged behind the paper feeding component and comprises an upper printing head and a lower printing head which can synchronously and transversely move, the lower printing head is a rotary wheel type dotting mechanism, and the upper printing head and the rotary wheel type dotting mechanism are arranged in a matched mode and used for printing Braille on paper passing through the position between the upper printing head and the lower printing head in an occluded mode. Compared with the prior art, the Braille input device has a simple structure, and can directly input Braille on common paper; the copper needle array adopted by the rotary wheel type dotting mechanism can realize one-time printing of one character, and the speed is improved.

Description

Braille typewriter device

Technical Field

The invention relates to a printer for printing braille, in particular to a braille typewriter device.

Background

At present, under the rapid development of social education, the education of blind people is also a part of social education and is a key object of social attention. With the development of science and technology, the blind education machine has a larger development space in the aspect of solving blind education.

The paper board data is the main learning data of the blind, and the blind needs the assistance of the paper board data in learning. The requirement for the paper board data is inevitable no matter in a Braille school or a family with blind people. The existing braille printers in the braille schools at present are expensive in price and occupy large space in size, so that common families are difficult to popularize and use. A small Braille duplicator appears on the market, but the effect is difficult to achieve in efficiency.

Disclosure of Invention

The present invention is directed to a braille typewriter device that overcomes the above-mentioned shortcomings of the prior art. The structure is simple, and braille input can be directly carried out on common paper. The copper needle array adopted by the rotary wheel type dotting mechanism can realize one-time printing of one character, and the speed is improved.

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

a braille typewriter device is used for printing braille on paper and comprises a bracket, a paper feeding component, a braille printing component and a controller, wherein the paper feeding component, the braille printing component and the controller are arranged on the bracket;

the paper feeding component comprises a paper feeding plate, a paper containing mechanism and a paper conveying mechanism which are arranged in sequence from front to back,

the Braille printing assembly is arranged behind the paper feeding assembly and comprises an upper printing head and a lower printing head which can synchronously move transversely, the lower printing head is a rotary wheel type dotting mechanism, and the upper printing head and the rotary wheel type dotting mechanism are matched and arranged and used for printing Braille on paper passing through the upper printing head and the lower printing head in an occlusion mode.

Preferably, the bracket comprises a bottom plate, side panels arranged on two sides of the bottom plate, and a rear baffle arranged on the rear side of the bottom plate, wherein a paper outlet is formed in the rear baffle.

Preferably, the paper feeding plate is arranged between the two side panels of the bracket and is positioned above the front part of the bottom plate, and two ends of the paper feeding plate are fixed on the two side panels.

Preferably, the controller is an arduino board and is arranged below the paper feeding board.

Preferably, the paper holding mechanism comprises a paper holding plate, a light spring set and a pressure lever; the paper containing plate is hinged to the rear of the paper inlet plate, flanges are arranged on two sides of the paper inlet plate, the light spring group is arranged between the paper containing plate and the bottom plate and applies upward acting force to the paper containing plate, two ends of the pressing rod are connected to two side panels of the support, two rolling wheels with grooves are arranged on the pressing rod in a penetrating mode, and the two rolling wheels with grooves are meshed with the flanges on two sides of the paper containing plate.

Preferably, the paper conveying mechanism comprises two roll shafts which are arranged above the paper containing plate in parallel from front to back, two ends of each roll shaft are rotatably connected with the two side panels, and the roll shafts are driven to rotate by the paper feeding stepping motor.

Preferably, the lower print head and the upper print head are respectively arranged on the rear panel through slide rails fixed on the rear panel and are respectively driven by a traverse stepping motor arranged at the rear side of the rear panel to perform synchronous traverse motion.

Preferably, lower printer head include with slide rail sliding connection's lower printer head press from both sides, set up runner, the steering wheel that is used for driving runner pivoted and set up in the runner top, towards the copper needle array that the printer head just can reciprocate of beating, the runner on be equipped with the concave-convex point for drive copper needle up-and-down motion.

Preferably, the upper printing head comprises an upper printing head clamp and a vacant position which is arranged below the upper printing head clamp and matched with the copper needle array.

Preferably, the copper needle array is arranged in a 2 × 3 array.

The working principle of the invention is as follows:

the paper is put into the paper containing plate, the controller is connected with the computer end, braille to be printed is input or inserted into the computer end, the two roller shafts are driven by the paper feeding stepping motor to rotate, the paper in the paper containing plate is driven to be conveyed through friction, and the paper passes through the space between the upper printing head and the lower printing head. Paper in the paper containing plate is always kept in contact with the roll shaft under the action of upward force applied to the paper containing plate by the light spring group, so that the roll shaft can automatically take the paper from the paper containing plate. After the paper reaches the dotting part (between the upper printing head and the lower printing head), the copper needles arranged in an array (preferably 2 x 3 array, the combination of which is set by searching the requirements of national braille standard, and one braille font is printed at one time) are used for dotting, for example, a is a point of (1, 1), and h is a point of (1, 1), (2, 1) and (2, 2). The dotting is that concave-convex points on the rotating wheel are matched with the copper needle array, so that the copper needles are ejected out to form different combinations, and the copper needles are matched with vacant positions of the upper printing head after being ejected out to be meshed up and down on the paper, so that salient points are punched on the paper. After a character is printed, the upper printing head and the lower printing head synchronously move transversely (are set to move transversely from left to right every time), dotting is continuously carried out, and after one row of dotting is finished, the roller shaft drives the paper to continuously advance, and then the next row of dotting is carried out. After one paper is printed, the paper is output from the paper outlet of the rear panel.

Compared with the prior art, the invention has the following effects:

1. compared with the Braille printer on the market, the Braille printer is simpler and more convenient in structure.

2. The used paper can be printed by only using common A4 paper, and the Braille can be directly input on a computer without using other materials, so that the Braille can be printed, and the time is greatly reduced. The controller is based on arduino board, and the development is mature and easy to realize.

3. The invention can read the control dot matrix by adopting an optical cable scanning mode to obtain the control information of the novel Braille printer and control the novel Braille printer to act, thereby realizing the printing of Braille fonts.

4. The machine head part adopts 2 rows and 3 columns for combination, and can print one character at a time when printing braille, thereby improving the speed.

Drawings

FIG. 1 is a schematic structural diagram of a Braille typing machine device according to the present invention.

FIG. 2 is a partial schematic view of a paper feeding assembly of the braille typewriter apparatus according to the present invention.

FIG. 3 is a schematic structural view of upper and lower print heads of the braille typewriter apparatus of the present invention.

FIG. 4 is a schematic diagram of a copper pin array of the braille typing machine apparatus of the present invention.

In the figure, 1 is a bracket, 11 is a bottom plate, 12 is a side plate, 13 is a rear baffle, 131 is a paper outlet, 21 is a paper feeding plate, 22 is a paper holding mechanism, 221 is a paper holding plate, 222 is a flanging, 223 is a pressing rod, 224 is a light spring group, 23 is a paper conveying mechanism, 231 is a roller shaft, 232 is a paper feeding stepping motor, 31 is an upper printing head, 311 is an upper printing head clamp, 312 is a vacant position, 32 is a lower printing head, 321 is a lower printing head clamp, 322 is a rotating wheel, 323 is a copper needle, 301 is a sliding rail, 302 is a transverse moving stepping motor, and 4 is a controller.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

Example 1

A braille typewriter device is used for printing braille on paper as shown in figures 1-4 and comprises a bracket 1, a paper feeding assembly, a braille printing assembly and a controller 4, wherein the paper feeding assembly, the braille printing assembly and the controller 4 are arranged on the bracket 1; the paper feeding assembly comprises a paper feeding plate 21, a paper containing mechanism 22 and a paper conveying mechanism 23 which are sequentially arranged from front to back, the Braille printing assembly is arranged behind the paper feeding assembly and comprises an upper printing head 31 and a lower printing head 32 which can synchronously and transversely move, the lower printing head 32 is a rotary wheel type dotting mechanism, and the upper printing head 31 and the rotary wheel type dotting mechanism are arranged in a matched mode and used for printing Braille on paper passing through the space between the upper printing head 31 and the lower printing head 32 in an occluded mode.

More specifically:

in this embodiment, the rack 1 preferably includes a bottom plate 11, side panels 12 disposed on both sides of the bottom plate 11, and a rear flap 13 disposed on the rear side of the bottom plate 11, and the rear flap 13 is provided with a paper outlet 131. The preferable ya keli board material of support 1, the hardness is big, and is not fragile, and transparent ya keli board more conveniently observes operating condition, judges the operating failure.

As shown in fig. 1, the paper feeding plate 21 is disposed between the two side panels 12 of the rack 1 and above the front portion of the bottom plate 11, and both ends of the paper feeding plate 21 are fixed to the two side panels 12, so that paper can be pushed forward from the paper feeding plate 21 and put into the paper holding plate. Preferred controller 4 in this embodiment is Arduino board, sets up in the space of advancing cardboard 21 below, and Arduino is the open source electron prototype platform of a convenient flexibility of section, convenient shang. The system comprises hardware (Arduino boards of various models) and software (Arduino IDE), wherein the Arduino IDE can run on three main operating systems of Windows, Macintosh OS X and Linux, and is developed based on processing IDE. The method is easy to master for beginners and has enough flexibility. The Arduino language is developed based on the wiring language, is a secondary package of the avr-gcc library, does not need too many single chip microcomputer bases and programming bases, and can be developed quickly after being simply learned. The hardware schematic diagram, circuit diagram, IDE software and core library files of Arduino are open source, and the original design and corresponding codes can be modified arbitrarily within the scope of the open source protocol.

In this embodiment, as shown in fig. 1 and 2, the paper holding mechanism preferably includes a paper holding plate 221, a light spring set 224, and a pressing rod 223; the paper containing plate 221 is hinged to the rear of the paper feeding plate 21, flanges 222 are arranged on two sides of the paper containing plate, the light spring set 224 is arranged between the paper containing plate 221 and the bottom plate 11 and applies upward acting force to the paper containing plate 221, two ends of the pressure lever 223 are connected to the two side panels 12 of the bracket 1, two grooved rollers penetrate through the pressure lever 12, and the two grooved rollers are meshed with the flanges 222 on two sides of the paper containing plate 221. The paper feeding mechanism 23 includes two roller shafts 231 arranged in parallel in front and rear above the paper containing plate 221, both ends of the roller shafts 231 are rotatably connected to the two side panels 12, and the roller shafts 231 are driven to rotate by a paper feeding stepping motor 232. The two rollers 231 are driven by the paper feeding stepping motor 232 to rotate, and frictionally convey the paper in the paper containing plate 221, and pass between the upper printing head 31 and the lower printing head 32. The paper in the paper tray 221 is always kept in contact with the roller shaft 231 by the upward force of the light spring set 224 on the paper tray 221, so that the roller shaft 231 can automatically take the paper from the paper tray 221.

In the present embodiment, as shown in fig. 1, 3 and 4, the lower print head 32 and the upper print head 31 are respectively provided on the rear panel 13 by slide rails 301 fixed to the rear panel 13, and are respectively driven to perform a synchronized traverse movement by traverse stepping motors 302 provided on the rear side of the rear panel 13. The lower printing head 32 comprises a lower printing head clamp 321 connected with the sliding rail 301 in a sliding manner, a rotating wheel 322 arranged in the lower printing head clamp 321, a steering engine used for driving the rotating wheel 322 to rotate, and a copper needle 323 array which is arranged above the rotating wheel 322, faces the upper printing head 31 and can move up and down, wherein concave and convex points are arranged on the rotating wheel 322 and used for driving the copper needle 323 to move up and down. The upper printhead 31 includes an upper printhead clip 311 and a void 312 disposed below the upper printhead clip 311 and matching the array of copper pins 323. Preferably, the array of copper pins 323 is arranged in a 2 x 3 array. The upper and lower head clips 311 and 321 are members slidably coupled to the slide rail 301. The traverse stepping motor 302 may use a transmission mechanism such as a lead screw, a rack and pinion to convert the rotational motion into a linear motion, so as to realize the transverse movement of the upper and lower print heads along the slide rail.

When the braille printing machine works, paper is placed into the paper containing plate, the controller is connected with the computer end, braille to be printed is input or inserted into the computer end, the two roller shafts rotate under the driving of the paper feeding stepping motor, the paper in the paper containing plate is driven to be conveyed through friction, and the paper passes through the space between the upper printing head and the lower printing head. Paper in the paper containing plate is always kept in contact with the roll shaft under the action of upward force applied to the paper containing plate by the light spring group, so that the roll shaft can automatically take the paper from the paper containing plate. After the paper reaches the dotting part (between the upper printing head and the lower printing head), the copper needles arranged in an array (preferably 2 x 3 array, the combination of which is set by searching the requirements of national braille standard, and one braille font is printed at one time) are used for dotting, for example, a is a point of (1, 1), and h is a point of (1, 1), (2, 1) and (2, 2). The dotting is that concave-convex points on the rotating wheel are matched with the copper needle array, so that the copper needles are ejected out to form different combinations, and the copper needles are matched with vacant positions of the upper printing head after being ejected out to be meshed up and down on the paper, so that salient points are punched on the paper. After a character is printed, the upper printing head and the lower printing head synchronously move transversely (are set to move transversely from left to right every time), dotting is continuously carried out, and after one row of dotting is finished, the roller shaft drives the paper to continuously advance, and then the next row of dotting is carried out. After one paper is printed, the paper is output from the paper outlet of the rear panel.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. A braille typewriter device is used for printing braille on paper and is characterized by comprising a bracket (1), a paper feeding component, a braille printing component and a controller (4), wherein the paper feeding component, the braille printing component and the controller are arranged on the bracket (1);

the paper feeding component comprises a paper feeding plate (21), a paper containing mechanism (22) and a paper conveying mechanism (23) which are arranged from front to back in sequence,

the Braille printing assembly is arranged behind the paper feeding assembly and comprises an upper printing head (31) and a lower printing head (32) which can synchronously move transversely, the lower printing head (32) is a rotary wheel type dotting mechanism, the upper printing head (31) and the rotary wheel type dotting mechanism are matched and arranged, and the Braille printing assembly is used for printing Braille on paper passing through the upper printing head (31) and the lower printing head (32) through occlusion.

2. A braille typewriter device according to claim 1, characterized in that the stand (1) comprises a bottom plate (11), side panels (12) arranged on both sides of the bottom plate (11) and a rear flap (13) arranged on the rear side of the bottom plate (11), wherein the rear flap (13) is provided with a paper outlet (131).

3. A braille typewriter device according to claim 2, characterized in that the paper feed plate (21) is arranged between the two side panels (12) of the stand (1) and above the front of the bottom plate (11), the two ends of the paper feed plate (21) being fixed to the two side panels (12).

4. A braille typewriter device according to claim 3, characterized in that the controller (4) is an arduino board arranged below the paper feeding board (21).

5. A braille typewriter apparatus according to claim 2, characterized in that the paper holder comprises a paper holder plate (221), a light spring group (224) and a press lever (223); the paper containing plate (221) is hinged to the rear of the paper inlet plate (21), flanges (222) are arranged on two sides of the paper containing plate, the light spring group (224) is arranged between the paper containing plate (221) and the bottom plate (11) and exerts upward acting force on the paper containing plate (221), two ends of the pressing rod (223) are connected to two side panels (12) of the support (1), two grooved rollers penetrate through the pressing rod (12), and the two grooved rollers are meshed with the flanges (222) on two sides of the paper containing plate (221).

6. A braille typewriter device according to claim 2, characterized in that the paper feeding mechanism (23) comprises two rollers (231) arranged in parallel in front and behind above the paper containing plate (221), both ends of the rollers (231) are rotatably connected with the two side plates (12), and the rollers (231) are driven to rotate by the paper feeding stepping motor (232).

7. A braille typing machine device according to claim 2, characterized in that the lower print head (32) and the upper print head (31) are respectively arranged on the rear panel (13) via slide rails (301) fixed to the rear panel (13) and are respectively driven to perform a synchronized traversing movement by a traversing stepping motor (302) arranged on the rear side of the rear panel (13).

8. A braille typewriter device according to claim 7, characterized in that the lower print head (32) comprises a lower print head clamp (321) connected with the slide rail (301) in a sliding manner, a rotating wheel (322) arranged in the lower print head clamp (321), a steering engine for driving the rotating wheel (322) to rotate, and a copper needle (323) array which is arranged above the rotating wheel (322), faces the upper print head (31) and can move up and down, wherein concave-convex points are arranged on the rotating wheel (322) and used for driving the copper needle (323) to move up and down.

9. A braille typewriter device according to claim 8, characterized in that the upper printhead (31) comprises an upper printhead holder (311) and empty spaces (312) arranged below the upper printhead holder (311) and matching the array of copper pins (323).

10. A braille typewriter device according to claim 8, characterized in that the array of copper pins (323) is arranged in a 2 x 3 array.