Braille printing device

Abstract

The invention discloses a braille printing device which comprises a rack, a first rotating shaft and a first driving device used for driving the first rotating shaft to rotate are arranged on the rack, a female die is arranged on the first rotating shaft, and a sliding block is further connected to the rack in a sliding mode. An adjusting device used for driving the sliding block to slide to be close to or away from the first rotating shaft is arranged between the sliding block and the rack, a second rotating shaft and a second driving device used for driving the second rotating shaft to rotate are arranged on the sliding block, and a male die capable of being matched with the female die is arranged on the second rotating shaft; the female die comprises a rotary drum and a plurality of concave points arranged on the outer surface of the rotary drum; the male die comprises an outer clamp and an inner clamp which are detachably connected together, and a plurality of marble needles clamped between the outer clamp and the inner clamp, and the front end parts of the marble needles extend out of the outer clamp so as to be matched with the corresponding concave points when the female die and the male die rotate. The method has the advantages of being more efficient, accurate, economical and universal.

Description

Technical Field

[0001] The invention relates to the technical field of braille printing equipment, and in particular to a braille printing device. Background Art

[0002] Braille, also known as Braille, is a tactile writing system for visually impaired people to read and write. Braille usually consists of six raised dots, which represent letters, numbers, punctuation marks and common phrases in different arrangements and combinations. In order to convey Braille information to visually impaired people, it is necessary to print Braille information on media such as paper and plastic to form touchable raised dots.

[0003] Traditional braille printing devices usually require the use of a female mold and a male mold. The female mold is provided with concave points corresponding to the raised points of braille, and the male mold is provided with raised points corresponding to the raised points of braille. During the printing process, paper or other media is placed between the female mold and the male mold, and pressure is applied to make the raised points on the male mold squeeze the paper, forming raised braille dots on the paper.

[0004] At present, the traditional method of manufacturing the positive mold mainly relies on the plate-shaped embossing tool. Specifically, multiple pre-made plate-shaped parts with convex points are assembled and fixed one by one on the substrate according to the arrangement rules of Braille to form a complete positive mold. However, this traditional positive mold manufacturing method has the following significant defects:

[0005] 1. The assembly is cumbersome and time-consuming: Since multiple independent plate-like components need to be assembled and fixed one by one, the assembly process is very cumbersome and requires a lot of manpower and time. Especially when it is necessary to make a positive mold with different Braille content, it needs to be assembled again, which is inefficient.

[0006] 2. It is difficult to ensure accuracy: Due to the tolerance of the size of the plate-like components and the errors that may occur during the assembly process, it is difficult to ensure the precise position and height of the convex points on the positive mold, which in turn affects the quality and readability of Braille printing.

[0007] 3. High cost: The production of a large number of plate embossing tools itself requires a high cost, and in the frequent assembly and disassembly process, it is easy to cause damage to the components, further increasing the maintenance and replacement costs.

[0008] 4. Poor versatility: Different positive molds need to be made for different Braille printing needs, resulting in a wide variety of positive molds with poor versatility, which increases the difficulty of storage and management.

[0009] 5. Difficult to achieve personalized customization: Traditional plate-shaped embossing tools are difficult to adjust and modify quickly and flexibly, and cannot meet the needs of personalized Braille printing.

[0010] In summary, the traditional method of using plate-shaped embossing tools to make positive molds has many shortcomings in terms of assembly efficiency, precision, cost, versatility and personalized customization, which seriously restricts the improvement of Braille printing efficiency and the expansion of its application scope.

[0011] Therefore, it is necessary to further improve and perfect the prior art to overcome these shortcomings, and the present invention is made based on this situation. Summary of the invention

[0012] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a more efficient, accurate, economical and universal Braille printing device.

[0013] The present invention is achieved through the following technical solutions:

[0014] In order to solve the above technical problems, the present invention provides a braille printing device, comprising a frame, the frame is provided with a first rotating shaft rotatably connected thereto, and a first driving device for driving the first rotating shaft to rotate, the first rotating shaft is provided with a female mold, the frame is also slidably connected with a slider, an adjusting device for driving the slider to slide close to or away from the first rotating shaft is provided between the slider and the frame, the slider is provided with a second rotating shaft rotatably connected thereto, and a second driving device for driving the second rotating shaft to rotate, the second rotating shaft is provided with a male mold that can cooperate with the female mold;

[0015] The female mold includes a rotating drum and a plurality of concave points arranged on the outer surface of the rotating drum; the male mold includes an outer clamp and an inner clamp that are detachably connected together, and a plurality of marble needles clamped between the two, and the front end ends of the marble needles extend out of the outer clamp to cooperate with the corresponding concave points when the female mold and the male mold rotate.

[0016] In order to further solve the technical problem to be solved by the present invention, in a Braille printing device provided by the present invention, a plurality of mounting holes for corresponding marble needles to be inserted and extended from the outer clamp are provided on the side wall of the outer clamp, and the rear end of the marble needle is against the outer side wall of the inner clamp.

[0017] In order to further solve the technical problem to be solved by the present invention, in a Braille printing device provided by the present invention, the marble needle includes a needle rod part, a limit platform arranged at the rear end of the needle rod part, and an arc-shaped head arranged at the front end of the needle rod part; the inner side of the mounting hole is provided with a limit groove for cooperating with the limit platform to limit the marble needle from escaping outward.

[0018] In order to further solve the technical problem to be solved by the present invention, in a Braille printing device provided by the present invention, the inner clamp is cylindrical and fixedly mounted on the second rotating shaft, and the outer clamp is divided into a plurality of first arc-shaped plates and is sequentially fitted on the outer side wall of the inner clamp through fasteners.

[0019] In order to further solve the technical problem to be solved by the present invention, in a Braille printing device provided by the present invention, the outer clamp is in the shape of a ring cover and is fixedly mounted on the second rotating shaft, and the inner clamp is divided into a plurality of second arc-shaped plates and is sequentially fitted on the inner wall of the outer clamp through fasteners.

[0020] In order to further solve the technical problem to be solved by the present invention, in a Braille printing device provided by the present invention, the outer clamp is in the shape of a ring cover and is fixedly installed on the second rotating shaft, and the inner clamp is fitted on the inner wall of the outer clamp and a magnetic attraction structure is provided between the two.

[0021] In order to further solve the technical problem to be solved by the present invention, in a Braille printing device provided by the present invention, the inner clip is provided with a magnet or is a magnet part, and the outer clip is provided with an iron part or is an iron part.

[0022] In order to further solve the technical problem to be solved by the present invention, in a Braille printing device provided by the present invention, the adjustment device includes a ball screw pair arranged between the slider and the frame, and a rotating wheel for driving the ball screw pair.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The positive mold of the present invention has a detachable design. By dividing the positive mold into an outer clamp and an inner clamp and using marble pins as printing elements, the function of quickly changing the arrangement of marble pins to adapt to the printing of different Braille contents is realized. This design significantly improves the efficiency and flexibility of Braille printing, reduces production costs, and has stronger versatility and customizability while ensuring printing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the negative mold;

[0028] Figure 3 yes Figure 2 A partial enlarged schematic diagram in the middle;

[0029] Figure 4 It is an exploded schematic diagram of the first embodiment of the male mold;

[0030] Figure 5 yes Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0031] Figure 6It is an exploded schematic diagram of the second embodiment of the male mold;

[0032] Figure 7 yes Figure 6 A partial enlarged schematic diagram of point C in the middle;

[0033] Figure 8 is a cross-sectional view of the second embodiment of the male mold;

[0034] Fig. 9 yes Figure 8 A partial enlarged schematic diagram of point D in the middle;

[0035] Fig.10 It is an exploded schematic diagram of the third embodiment of the male mold. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] like Figures 1 to 10 A Braille printing device shown in the figure comprises a frame 1, on which a first rotating shaft 2 rotatably connected thereto and a first driving device 3 for driving the first rotating shaft 2 to rotate are provided, on which a female mold 4 is provided, and on which a slider 5 is slidably connected the frame 1, and between which an adjusting device 6 for driving the slider 5 to slide to approach or move away from the first rotating shaft 2 is provided.

[0038] The slider 5 is provided with a second rotating shaft 7 rotatably connected thereto, and a second driving device 8 for driving the second rotating shaft 7 to rotate. The second rotating shaft 7 is provided with a male mold 9 capable of cooperating with the female mold 4 .

[0039] Furthermore, the first driving device 3 and the second driving device 8 are preferably stepper motors or servo motors. The adjusting device 6 specifically includes a ball screw pair 61 disposed between the slider 5 and the frame 1, and a rotating wheel 62 for driving the ball screw pair 61, wherein the rotating wheel 62 can be rotated manually or driven by a driving device such as a motor.

[0040] By rotating the rotating wheel 62, the distance between the female mold 4 and the male mold 9, as well as the pressure between the two, can be adjusted to adapt to the thickness of different papers or materials.

[0041] like Figure 2 , Figure 3As shown, the female mold 4 includes a rotating drum 41 and a plurality of concave points 42 provided on the outer surface of the rotating drum 41. The material of the rotating drum 41 can be selected from metal or plastic with high hardness to ensure the shape and size accuracy of the concave points 42. The arrangement of the concave points 42 corresponds to the coding rules of Braille, and the printing of different Braille contents can be achieved by rotating and cooperating the female mold 4 and the male mold 9.

[0042] The main innovation of the present invention lies in the design of the male mold 9. The outer clamp 91 and the inner clamp 92 can be quickly disassembled, so as to quickly change the arrangement of the marble needles 93, realize the printing of different braille contents, and improve the efficiency and flexibility of braille printing. The male mold has multiple embodiments, which are as follows:

[0043] Embodiment 1, outer hoop type male mold

[0044] like Figure 4-Figure 5 What is shown is the first embodiment of the male mold. In this embodiment, the male mold 9 includes an outer clamp 91 and an inner clamp 92 which are detachably connected together, and a plurality of marble needles 93 clamped therebetween, and the front end portions of the marble needles 93 extend out of the outer clamp 91 to cooperate with the corresponding concave points 42 when the female mold 4 and the male mold 9 rotate.

[0045] Furthermore, a plurality of mounting holes 911 are provided on the side wall of the outer clip 91 for the corresponding marble pins 93 to be inserted into and extend out of the outer clip 91 .

[0046] The rear end of the marble needle 93 abuts against the outer wall of the inner clip 92 , and the inner clip 92 plays a role in supporting and fixing the marble needle 93 .

[0047] Furthermore, the marble needle 93 includes a needle rod 931, a limiting platform 932 disposed at the rear end of the needle rod 931, and an arc head 933 disposed at the front end of the needle rod 931. The diameter of the needle rod 931 is slightly smaller than the diameter of the mounting hole 911, ensuring that the marble needle 93 can slide freely in the mounting hole 911. The limiting platform 932 is used to limit the axial movement of the marble needle 93 to prevent it from falling off from the mounting hole 911. The arc head 933 is used to cooperate with the concave point 42 on the female mold 4 to squeeze the paper during the printing process to form a Braille convex point.

[0048] The inner side of the mounting hole 911 is provided with a limiting groove 912 for cooperating with the limiting platform 932 to limit the marble needle 93 from escaping outwards.

[0049] Furthermore, the inner clip 92 is cylindrical and fixedly mounted on the second rotating shaft 7, while the outer clip 91 is divided into a plurality of first arc-shaped plates 913 and is sequentially fitted on the outer side wall of the inner clip 92 through fasteners (such as screws). That is, the outer clip 91 and the inner clip 92 form a split design of an outer hoop, and this split design facilitates the disassembly and replacement of the outer clip 91, so that the arrangement of the marble pins 93 can be quickly changed to achieve printing of different Braille contents.

[0050] Embodiment 2, built-in male mold

[0051] like Figure 6-Figure 9 The second embodiment of the male mold is shown, which is different from the first embodiment in that, in this embodiment, the outer clamp 91 is an integral cover-shaped annular structure, fixedly mounted on the second rotating shaft 7. The inner clamp 92 is divided into a plurality of second arc-shaped plates 921, which are sequentially fitted on the inner side wall of the outer clamp 91 by fasteners (such as screws).

[0052] The pin 93 is sandwiched between the outer clip 91 and the inner clip 92, and its front end passes through the mounting hole 911 on the outer clip 91 and extends out of the surface of the outer clip 91, matching with the concave point 42 on the female mold 4. The rear end of the pin 93 is supported and constrained by the outer surface of the inner clip 92 to prevent it from falling off.

[0053] The internal structure can better hide the marble needle 93 between the outer clamp 91 and the inner clamp 92, reduce external interference, and make the overall structure of the male mold more compact. The overall ring-shaped outer clamp 91 can provide better support and protection, improve the overall rigidity and stability of the male mold, reduce vibration and deformation, and help improve the accuracy of Braille printing.

[0054] Embodiment 3: Magnetic male mold

[0055] like Fig.10 As shown, the third embodiment is another improved scheme of the male mold, and the main difference between it and the second embodiment (built-in male mold) is the connection method between the inner clip 92 and the outer clip 91. The present embodiment adopts a magnetic structure to replace the fastener connection method in the second embodiment, aiming to further simplify the disassembly and assembly process of the male mold and improve the efficiency of Braille printing.

[0056] Similar to the second embodiment, in this embodiment, the outer clip 91 is still an integral ring-shaped structure and is fixedly mounted on the second rotating shaft 7. The inner clip 92 is no longer divided into a plurality of arc-shaped plates, but is integrally mounted on the inner side wall of the outer clip 91. The key point is that a magnetic attraction structure is provided between the inner clip 92 and the outer clip 91, and the two are tightly connected together by magnetic force.

[0057] Specific implementation of the magnetic structure:

[0058] Inner clip 92: The inner clip 92 is provided with a magnet or is itself a magnet member 922. The magnet member 922 may be a permanent magnet, such as a neodymium iron boron magnet, or an electromagnet.

[0059] Outer clip 91: The outer clip 91 is provided with an iron part or is an iron part. The iron part can be an iron plate, an iron sheet or other materials that can be attracted by a magnet. If the outer clip 91 is an iron part, it can directly attract the magnet on the inner clip 92.

[0060] It should be noted that the marble needle 93 is preferably made of non-magnetic, non-ferrous material to avoid being attracted by a magnet and affecting the installation arrangement of the marble needle 93.

[0061] Working principle:

[0062] When the inner clip 92 is close to the outer clip 91, the magnet or magnet part 922 on the inner clip 92 will attract the iron part or iron part on the outer clip 91, generating a strong magnetic force, and firmly adsorbing the inner clip 92 on the inner wall of the outer clip 91. Due to the effect of the magnetic force, the inner clip 92 can fit tightly on the inner wall of the outer clip 91, ensuring the stability and accuracy of the marble needle 93.

[0063] Advantages of this embodiment:

[0064] Quick and convenient disassembly: Compared with the second embodiment, which requires tightening and loosening multiple fasteners, the present embodiment only requires a slight pull to remove the inner clip 92 from the outer clip 91. Similarly, during assembly, the inner clip 92 only needs to be brought close to the outer clip 91, and it can be automatically adsorbed into place by magnetic force, which greatly simplifies the disassembly and assembly process and saves time and effort.

[0065] Easy operation: As no tools are required, the disassembly and assembly process is very simple, even those who are not familiar with mechanical operation can easily complete it.

[0066] Easy maintenance: Similar to the second embodiment, the outer clamp 91 of this embodiment is also an integral structure. Therefore, during daily maintenance, it is only necessary to clean the surface of the outer clamp 91, which reduces the difficulty of maintenance.

[0067] The magnetic positive mold achieves rapid disassembly and assembly between the inner clamp 92 and the outer clamp 91 by cleverly utilizing magnetic force, thereby greatly improving the efficiency and flexibility of Braille printing.

[0068] Working principle of the present invention:

[0069] When printing braille, firstly, according to the braille content to be printed, the marble needles 93 are arranged between the disassembled outer clip 91 and the inner clip 92. The arrangement of the marble needles 93 can be completed quickly and accurately through the aid of a pre-designed template or software.

[0070] For example, the arrangement of the marble needles 93 is as follows: each Braille includes 6 mounting holes 911 (3 rows and 2 columns). According to the content of the Braille, the marble needles 93 are inserted into some of the mounting holes 911, while the other mounting holes 911 are left empty, thereby forming a specific arrangement combination.

[0071] After the marble pins 93 are arranged, the outer clip 91 and the inner clip 92 are assembled together.

[0072] Then, the distance between the male mold 9 and the female mold 4 is adjusted by the adjusting device 6 to adapt to the thickness of the paper to be printed, and the front end of the marble needle 93 is aligned with the concave point 42 on the female mold 4. This alignment process can be assisted by vision or sensors to ensure the precise matching of the male mold 9 and the female mold 4.

[0073] Next, the first drive device 3 and the second drive device 8 drive the female mold 4 and the male mold 9 to rotate respectively, so that the front end of the marble needle 93 cooperates with the concave point 42 on the female mold 4 in turn. While the female mold 4 and the male mold 9 rotate, paper or other printing media is fed between the female mold 4 and the male mold 9. When the front end of the marble needle 93 is aligned with the concave point 42 on the female mold 4, the marble needle 93 squeezes the paper to form a raised Braille dot on the paper. By controlling the rotation speed and angle of the female mold 4 and the male mold 9, continuous Braille printing can be achieved.

[0074] After printing is completed, the printed paper can be taken out manually or automatically. If different braille contents need to be printed, the outer clip 91 and the inner clip 92 can be quickly disassembled, the marble needles 93 are rearranged, and then the above-mentioned printing process is repeated.

[0075] Advantages and beneficial effects of the present invention:

[0076] 1. High efficiency and speed: The detachable outer clamp 91 and inner clamp 92 structure can quickly change the arrangement of the marble needle 93, which greatly shortens the preparation time of Braille printing and improves printing efficiency.

[0077] 2. Low cost: The marble needle 93 can be reused, which reduces the cost of Braille printing.

[0078] 3. Strong versatility: By changing the arrangement of the marble needles 93, different Braille contents can be printed, which has strong versatility.

[0079] 4. Strong customizability: Different arrangements of marble pins 93 can be customized according to user needs to meet personalized Braille printing needs.

[0080] 5. Easy to maintain: simple structure, easy replacement of parts and components, low maintenance cost.

[0081] Summarize:

[0082] The present invention provides an efficient, accurate, economical and universal braille printing device. By adopting a detachable outer clamp 91 and inner clamp 92 structure, the arrangement of the marble needles 93 can be quickly replaced to achieve printing of different braille contents.

Claims

1. A Braille printing device, characterized in that: The invention comprises a frame (1), the frame (1) is provided with a first rotating shaft (2) rotatably connected thereto, and a first driving device (3) for driving the first rotating shaft (2) to rotate, the first rotating shaft (2) is provided with a female mold (4), the frame (1) is also slidably connected with a slider (5), an adjusting device (6) for driving the slider (5) to slide closer to or away from the first rotating shaft (2) is provided between the slider (5) and the frame (1), the slider (5) is provided with a second rotating shaft (7) rotatably connected thereto, and a second driving device (8) for driving the second rotating shaft (7) to rotate, and the second rotating shaft (7) is provided with a male mold (9) capable of cooperating with the female mold (4); The female mold (4) comprises a rotating drum (41) and a plurality of concave points (42) arranged on the outer surface of the rotating drum (41); the male mold (9) comprises an outer clamp (91) and an inner clamp (92) which are detachably connected together, and a plurality of marble needles (93) clamped therebetween, and the front end portions of the marble needles (93) extend out of the outer clamp (91) so as to cooperate with the corresponding concave points (42) when the female mold (4) and the male mold (9) rotate.

2. A Braille printing device according to claim 1, characterized in that: The side wall of the outer clamp (91) is provided with a plurality of mounting holes (911) for corresponding marble needles (93) to be inserted and extended out of the outer clamp (91), and the rear end of the marble needle (93) is pressed against the outer side wall of the inner clamp (92).

3. A Braille printing device according to claim 2, characterized in that: The marble needle (93) comprises a needle rod portion (931), a limiting platform (932) arranged at the rear end of the needle rod portion (931), and an arc-shaped head (933) arranged at the front end of the needle rod portion (931); a limiting groove (912) is provided on the inner side of the mounting hole (911) for cooperating with the limiting platform (932) to limit the marble needle (93) from disengaging outward.

4. A Braille printing device according to any one of claims 1 to 3, characterized in that: The inner clamp (92) is cylindrical and fixedly mounted on the second rotating shaft (7); the outer clamp (91) is divided into a plurality of first arc-shaped plates (913) and is sequentially fitted on the outer side wall of the inner clamp (92) through fasteners.

5. A Braille printing device according to any one of claims 1 to 3, characterized in that: The outer clamp (91) is in the shape of an annular cover and is fixedly mounted on the second rotating shaft (7); the inner clamp (92) is divided into a plurality of second arc-shaped plates (921) and is sequentially fitted on the inner side wall of the outer clamp (91) through fasteners.

6. A Braille printing device according to any one of claims 1 to 3, characterized in that: The outer clamp (91) is in the shape of an annular cover and is fixedly mounted on the second rotating shaft (7); the inner clamp (92) is fitted on the inner side wall of the outer clamp (91) and a magnetic attraction structure is provided between the two.

7. A Braille printing device according to claim 6, characterized in that: The inner clamp (92) is provided with a magnet or is a magnet part (922), and the outer clamp (91) is provided with an iron part or is an iron part.

8. A Braille printing device according to claim 1, characterized in that: The adjusting device (6) comprises a ball screw pair (61) arranged between the slider (5) and the frame (1), and a rotating wheel (62) for driving the ball screw pair (61).

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