Driving device for driving marking head and braille dot character pattern marking machine

Abstract

According to the driving device for driving the marking head and the braille dot pattern marking machine, when the first moving module drives the marking head on the electromagnetic actuating mechanism to move in the X-axis direction, the electromagnetic actuating mechanism drives the marking head to move in the Z-axis direction in a reciprocating mode; therefore, the braille salient points can be engraved by the engraving head, the engraving is finished and withdrawn, and the driving part of the engraving head can respond more timely and quickly. In addition, the electromagnetic actuating mechanism can drive the marking head to mark quickly at high frequency, and the marking speed and the marking quality of the braille dot character pattern marking machine can be improved. Besides, the sliding table is supported on the first guide rail in a rolling mode through four first pressure-bearing rollers, the first guide rail and the sliding table are connected in a rolling mode in a clamping mode through a plurality of pressure-bearing rollers, the precision of the moving step pitch of the engraving head in the X-axis direction is improved, and the engraving head can engrave braille alphabets in an inclined and variable-interval moving mode with high precision. And therefore, the braille dot character pattern marking press realizes image-text mixed arrangement.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing and manufacturing of Braille engraving equipment, in particular to a driving device for driving an engraving head and a Braille graphic engraving machine. Background Art

[0002] Braille, also known as dot characters or embossed characters, is a type of text that is designed for the blind to read and write. It is a tool for the blind to learn and read. The blind read knowledge and obtain relevant information by touching the Braille. The timeliness of the driving response of the engraving head of the Braille engraving machine and the accuracy of the moving step directly affect the engraving speed, engraving quality and engraving cost of the Braille engraving machine. At present, the engraving head is generally driven by pneumatic control to realize the action drive process of engraving and retracting the engraving head after engraving. However, since the driving device of the pneumatic control method is easily affected by the air source, it is easy to have problems such as untimely driving response and limited driving frequency, which seriously affects the engraving speed, engraving quality and engraving cost of the Braille engraving machine. Utility Model Content

[0003] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiments of the utility model is to provide a driving device for driving an engraving head, so as to solve the problem that the driving device of the pneumatic control method in the prior art is easily affected by the air source, and is prone to untimely driving response and limited driving frequency.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a driving device for driving an engraving head, comprising:

[0005] a first movable module, used for driving the engraving head to move along the X-axis direction, the first movable module comprising a slide, a first guide rail, a first motor and four first pressure rollers, two first pressure rollers are respectively arranged on both sides of the first guide rail, the rolling surface of each first pressure roller is in rolling contact with the first guide groove on the corresponding side surface of the first guide rail, the first motor is arranged on the slide, and the first motor is drivingly connected to the first pressure rollers, so that when the first motor is working, the slide can be driven to move along the X-axis direction; and

[0006] An electromagnetic actuation mechanism is used to drive the engraving head to move along the Z-axis direction to achieve the action of engraving the Braille convex dots and retracting the engraving head after engraving is completed; the electromagnetic actuation mechanism includes a fixed seat fixedly connected to the slide table, a moving magnet used to drive the engraving head to move along the Z-axis direction, an electromagnet used to interact with the moving magnet to drive the moving magnet to move downward along the Z-axis direction, and an elastic member used to drive the moving magnet to move upward and reset along the Z-axis direction, the electromagnet is fixedly arranged on the fixed seat, and the moving magnet can be slidably arranged on the fixed seat along the Z-axis direction.

[0007] Furthermore, a accommodating cavity is provided inside the fixing seat, the electromagnet is provided in the accommodating cavity, and a first limiting hole and a second limiting hole connected to the accommodating cavity are provided on the fixing seat, the first limiting hole and the second limiting hole are arranged correspondingly up and down along the Z-axis direction, and the moving magnet can be slidably inserted in the first limiting hole and the second limiting hole.

[0008] Furthermore, the electromagnet is in a cylindrical structure, the moving magnet is in a columnar structure extending along the Z-axis direction, and the electromagnet is sleeved on the outside of the moving magnet.

[0009] Furthermore, the moving magnet is in a columnar structure extending along the Z-axis direction, and a stopper is provided on the moving magnet for cooperating with the fixing seat to limit the upward movement of the moving magnet to a reset position.

[0010] Furthermore, the stopper is a convex ring structure extending radially outward from the bottom end of the moving magnet, and the outer diameter of the convex ring structure is greater than the diameter of the second limiting hole.

[0011] Furthermore, the moving magnet is in a columnar structure extending along the Z-axis direction.

[0012] Furthermore, the first moving module also includes a first synchronous wheel and a first toothed belt, two first pressure rollers are respectively provided on both sides of the first guide rail, the rolling surface of each first pressure roller is in rolling contact with the first guide groove on the corresponding side of the first guide rail, the first synchronous wheel is connected to the output shaft of the first motor, and the tooth portion of the first toothed belt is meshed with the tooth portion on the first synchronous wheel, so that when the first motor drives the first synchronous wheel to rotate, the slide can move along the X-axis direction.

[0013] Furthermore, the first toothed belt is a linear synchronous belt, both ends of the first toothed belt are respectively fixed on the first guide rail, the first synchronous wheel is arranged between the two first pressure rollers located on the same side of the first guide rail, and the two first pressure rollers located on the same side of the first guide rail press the first toothed belt into the first guide groove so that the first motor is connected to the first pressure roller by transmission.

[0014] Furthermore, the elastic member is a spring, the spring is sleeved on the moving magnet, the first end of the spring abuts against the fixing seat, and the second end of the spring abuts against the abutting portion at the top end of the moving magnet.

[0015] Another object of an embodiment of the utility model is to provide a Braille graphic engraving machine comprising a driving device for driving an engraving head provided by any of the above embodiments, so as to solve the technical problems in the prior art that the driving device of the pneumatic control method is easily affected by the air source, and is prone to untimely driving response and limited driving frequency.

[0016] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a Braille graphic engraving machine, including a driving device for driving an engraving head provided by any of the above-mentioned embodiments.

[0017] Compared with the prior art, the above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:

[0018] In the embodiment of the utility model, the driving device for driving the engraving head and the braille graphic engraving machine, in the process that the first moving module drives the engraving head on the electromagnetic actuating mechanism to move along the X-axis direction, the electromagnetic actuating mechanism drives the engraving head to move back and forth along the Z-axis direction, so as to realize the action of the engraving head engraving the braille convex dots and the engraving completion and retraction, which can make the driving part of the engraving head respond more timely and quickly, and no air source is needed during use, which can reduce the restrictions on its use environment. In addition, the electromagnetic actuating mechanism can realize high-frequency driving of the engraving head for rapid engraving, which is conducive to improving the engraving speed and engraving quality of the braille graphic engraving machine. In addition, since the first motor is connected to the first pressure roller transmission, and the slide is supported on the first guide rail by four first pressure rollers, and the first guide rail adopts a plurality of pressure rollers to clamp to realize rolling connection, the operation of the first motor can make the slide move smoothly and stably along the X-axis direction, and improve the accuracy of the step distance of the engraving head moving along the X-axis direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a driving device for driving an imprinting head provided in an embodiment of the utility model;

[0021] Figure 2 Another three-dimensional structural schematic diagram of a driving device for driving an imprinting head provided in an embodiment of the utility model;

[0022] Figure 3Another three-dimensional structural schematic diagram of a driving device for driving an imprinting head provided in an embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of the electromagnetic actuation mechanism provided in an embodiment of the utility model;

[0024] Figure 5 A schematic diagram of a structure in which a moving magnet provided in an embodiment of the utility model is slidably mounted on a fixed seat;

[0025] Figure 6 An exploded view of a driving device for driving an imprint head provided in an embodiment of the utility model;

[0026] Figure 7 A schematic diagram of the three-dimensional structure of the second mobile module provided by an embodiment of the utility model;

[0027] Figure 8 The present invention is a three-dimensional structural schematic diagram of a Braille graphic engraving machine provided in an embodiment of the present invention.

[0028] Among them, the reference numerals in the figure are:

[0029] 1-first moving module; 11-slide; 12-first guide rail; 121-first guide groove; 13-first motor; 14-first pressure roller; 15-first synchronous wheel; 16-first toothed belt;

[0030] 2-electromagnetic actuating mechanism; 21-fixed seat; 211-accommodating cavity; 22-moving magnet; 23-electromagnet; 24-elastic member; 25-stop portion; 26-holding portion;

[0031] 3-printing head; 4-printing table;

[0032] 5-second moving module; 51-roller bracket; 52-second guide rail; 521-second guide groove; 53-second motor; 54-second synchronous wheel; 55-second toothed belt; 56-second pressure roller. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] It should be noted that when an element is referred to as being "connected to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly specified and specifically defined. In the description of the utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0036] Please also read Figures 1 to 8 Now, the driving device for driving the imprinting head 3 provided by the embodiment of the utility model is described. Figure 1 , Figure 2 and Figure 6The driving device for driving the imprinting head 3 provided in the embodiment of the utility model comprises a first moving module 1 and an electromagnetic actuating mechanism 2, wherein the electromagnetic actuating mechanism 2 is connected to the imprinting head 3, the first moving module 1 is used to drive the imprinting head 3 on the electromagnetic actuating mechanism 2 to move along the X-axis direction, and the electromagnetic actuating mechanism 2 is used to drive the imprinting head 3 to move along the Z-axis direction, so as to realize the action of the imprinting head 3 imprinting the Braille convex dots and retracting after the imprinting is completed. The first moving module 1 comprises a slide 11, a first guide rail 12, a first motor 13 and four first pressure rollers 14, two first pressure rollers 14 are respectively arranged on both sides of the first guide rail 12, and the rolling surface of each first pressure roller 14 is in rolling contact with the first guide groove 121 on the corresponding side surface of the first guide rail 12, and the first motor 13 is arranged on the slide 11, and the first motor 13 is connected to the first pressure roller 14 by transmission. When the first motor 13 is working, the slide 11 can be driven to move along the X-axis direction. The electromagnetic actuation mechanism 2 includes a fixed seat 21 fixedly connected to the slide 11, a moving magnet 22 for driving the imprinting head 3 to move along the Z-axis direction, an electromagnet 23 for interacting with the moving magnet 22 to drive the moving magnet 22 to move downward along the Z-axis direction, and an elastic member 24 for driving the moving magnet 22 to move upward and reset along the Z-axis direction. The electromagnet 23 is fixedly arranged on the fixed seat 21, and the moving magnet 22 can be slidably arranged on the fixed seat 21 along the Z-axis direction. When the driving device for driving the imprinting head 3 provided in the embodiment of the utility model is working, since the first motor 13 is connected to the first pressure roller 14 by transmission, and the slide 11 is rollingly supported on the first guide rail 12 through four first pressure rollers 14, and the first guide rail 12 adopts a plurality of pressure rollers to clamp to achieve rolling connection, the operation of the first motor 13 can make the slide 11 move smoothly and stably along the X-axis direction, thereby improving the moving speed and moving accuracy of the imprinting head 3 along the X-axis direction. In the process of the first moving module 1 driving the engraving head 3 on the electromagnetic actuating mechanism 2 to move along the X-axis direction, it is only necessary to control the electromagnet 23 to be energized through the controller, and the magnetic field generated by the electromagnet 23 interacts with the moving magnet 22 to drive the moving magnet 22 to move downward along the Z-axis direction, thereby controlling the engraving head 3 to complete the action of engraving the Braille convex dots on the paper through the electromagnetic actuating mechanism 2. Next, the electromagnet 23 is de-energized through the controller, and the elastic member 24 drives the moving magnet 22 to move upward along the Z-axis direction to reset, thereby controlling the engraving head 3 to complete the rapid retraction action after engraving through the electromagnetic actuating mechanism 2. Repeating the above process, a uniform and complete dot matrix Braille pattern can be engraved on the paper.

[0037] Compared with the prior art, the driving device for driving the imprinting head 3 provided in the embodiment of the utility model, in the process that the first moving module 1 drives the imprinting head 3 on the electromagnetic actuating mechanism 2 to move along the X-axis direction, the electromagnetic actuating mechanism 2 drives the imprinting head 3 to move back and forth along the Z-axis direction, so as to realize the action of imprinting the braille convex dots and retracting the imprinting head 3 after the imprinting is completed, which can make the driving part of the imprinting head 3 respond more timely and quickly, and does not need to use an air source during use, which can reduce the restrictions on its use environment. In addition, the electromagnetic actuating mechanism 2 can realize high-frequency driving of the imprinting head 3 for rapid imprinting, which is conducive to improving the imprinting speed and imprinting quality of the braille graphic imprinting machine. In addition, since the first motor 13 is connected to the first pressure roller 14 by transmission, and the slide 11 is rollingly supported on the first guide rail 12 by four first pressure rollers 14, and the first guide rail 12 is rollingly connected with the slide 11 by clamping with multiple pressure rollers, the operation of the first motor 13 can make the slide 11 move smoothly and stably along the X-axis direction, thereby improving the precision of the step distance of the engraving head 3 moving along the X-axis direction. In addition, the engraving head 3 can perform oblique and variable pitch moving engraving of Braille with high precision, so that the Braille graphic engraving machine can achieve mixed text and image typesetting.

[0038] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments, a receiving cavity 211 is provided inside the fixing seat 21, and the electromagnet 23 is provided in the receiving cavity 211. A first limiting hole and a second limiting hole communicating with the receiving cavity 211 are provided on the fixing seat 21. The first limiting hole and the second limiting hole are correspondingly arranged up and down along the Z-axis direction, and the moving magnet 22 can be slidably inserted into the first limiting hole and the second limiting hole. In this embodiment, the moving magnet 22 is limited in the up and down sliding direction by the first limiting hole and the second limiting hole, so that the moving magnet 22 can accurately and stably drive the imprinting head 3 to move back and forth along the Z-axis direction.

[0039] Please refer to Figure 4 , Figure 5 and Figure 6 In some embodiments, the electromagnet 23 is in a cylindrical structure, the moving magnet 22 is in a columnar structure extending along the Z-axis direction, the moving magnet 22 is in a columnar structure extending along the Z-axis direction, and the electromagnet 23 is sleeved on the outside of the moving magnet 22, which is conducive to the interaction between the magnetic field generated by the electromagnet 23 and the moving magnet 22 to drive the moving magnet 22 to move along the Z-axis direction and downward, so that the driving part of the engraving head 3 responds more promptly and quickly.

[0040] Please refer to Figure 2 , Figure 4 and Figure 5In some embodiments, the moving magnet 22 is a columnar structure extending along the Z-axis direction, and a stopper 25 is provided on the moving magnet 22 for cooperating with the stopper fixing seat 21 to limit the upward movement and reset position of the moving magnet 22, thereby enhancing the stability of the upward movement and reset of the moving magnet 22, and facilitating the electromagnetic actuation mechanism 2 to realize high-frequency driving of the engraving head 3 for rapid engraving. Specifically, the stopper 25 is a convex ring structure extending radially outward from the bottom end of the moving magnet 22, and the outer diameter of the convex ring structure is greater than the diameter of the second limiting hole.

[0041] Please refer to Figure 1 , Figure 2 and Figure 6 In some embodiments, the first movable module 1 also includes a first synchronous wheel 15 and a first toothed belt 16, two first pressure rollers 14 are respectively provided on both sides of the first guide rail 12, the rolling surface of each first pressure roller 14 is in rolling contact with the first guide groove 121 on the corresponding side of the first guide rail 12, the first synchronous wheel 15 is connected to the output shaft of the first motor 13, and the tooth portion of the first toothed belt 16 is meshed with the tooth portion on the first synchronous wheel 15. Since the roller bracket 51 is rollingly supported on the first guide rail 12 through the four first pressure rollers 14, when the first motor 13 drives the first synchronous wheel 15 to rotate, the slide 11 can move along the X-axis direction, so as to drive the engraving head 3 to move along the X-axis direction. At the same time, the two second movable modules 5 used to drive the engraving head 3 to move along the Y-axis direction are respectively connected to the first slide rail, and the electromagnetic actuating mechanism 2 used to drive the engraving head 3 to move along the Z-axis direction is connected to the slide 11 of the first movable module 1, so that the engraving head 3 can perform two-dimensional movement on a two-dimensional plane parallel to the paper, and the electromagnetic actuating mechanism 2 is used to control the engraving head 3 to engrave braille dots and retract after engraving is completed, so as to achieve uniform and complete dot matrix braille graphics on the paper.

[0042] Please refer to Figure 1 , Figure 2 and Figure 6In some embodiments, the first toothed belt 16 is a linear synchronous belt, both ends of the first toothed belt 16 are respectively fixed on the first guide rail 12, a first synchronous wheel 15 is arranged between the two first pressure rollers 14 located on the same side of the first guide rail 12, and the two first pressure rollers 14 located on the same side of the first guide rail 12 press the first toothed belt 16 into the first guide groove 121, so that the first motor 13 is connected to the first pressure roller 14 by transmission. In this embodiment, when the first motor 13 drives the first synchronous wheel 15 to rotate, since the two ends of the first toothed belt 16 are respectively fixed on the first guide rail 12, the reaction force of the first synchronous wheel 15 drives the first motor 13 and the slide 11 to move, and the slide 11 is rollingly supported on the first guide rail 12 by the four first pressure rollers 14. The first toothed belt 16 is pressed into the first guide groove 121 by the two first pressure rollers 14 located on the same side of the first guide rail 12, so that the slide 11 can smoothly drive the engraving head 3 to move with high precision, and can ensure the stability of the high-speed operation of the roller bracket 51, and reduce the noise generated when the roller bracket 51 runs at high speed.

[0043] Please refer to Figure 4 In some embodiments, the elastic member 24 is a spring, which is sleeved on the moving magnet 22, the first end of the spring abuts against the fixed seat 21, and the second end of the spring abuts against the supporting portion 26 at the top of the moving magnet 22, which can enhance the stability of the elastic member 24 driving the moving magnet 22 to move upward along the Z-axis direction to reset.

[0044] Please refer to Figure 7 and Figure 8In some embodiments, the driving device for driving the imprinting head 3 provided by the embodiments of the utility model further includes a second movable module 5 for driving the imprinting head 3 to move along the Y-axis direction, the second movable module 5 includes two roller guide rail mechanisms arranged in pairs, the roller guide rail mechanisms include a roller bracket 51, a second guide rail 52, a second motor 53, a second synchronous wheel 54, a second toothed belt 55 and four second pressure rollers 56, the second guide rail 52 is arranged on the imprinting table 4, two second pressure rollers 56 are respectively provided on the upper and lower sides of the second guide rail 52, the rolling surface of each second pressure roller 56 is in rolling contact with the second guide groove 521 on the corresponding side surface of the second guide rail 52, the second motor 53 is arranged on the roller bracket 51, the second synchronous wheel 54 is connected to the output shaft of the second motor 53, and the tooth portion of the second toothed belt 55 is meshed with the tooth portion on the second synchronous wheel 54. When the Braille pattern engraving machine provided by the embodiment of the utility model is working, the second synchronous wheel 54 is driven to rotate by the second motor 53. Since the roller bracket 51 is rollingly supported on the second guide rail 52 by the four second pressure rollers 56, the roller bracket 51 can move along the Y-axis direction, thereby driving the engraving head 3 to move along the Y-axis direction. At the same time, the second moving module 5 for driving the engraving head 3 to move along the X-axis direction is respectively connected to the roller brackets 51 of the two roller guide rail mechanisms, and the electromagnetic actuating mechanism 2 for driving the engraving head 3 to move along the Z-axis direction is connected to the second moving module 5, and the engraving head 3 is connected to the electromagnetic actuating mechanism 2, so that the engraving head 3 can perform two-dimensional movement on a two-dimensional plane parallel to the paper, and the electromagnetic actuating mechanism 2 is used to control the engraving head 3 to engrave braille convex dots and retract after engraving, so as to achieve uniform and complete dot matrix Braille pattern engraving on the paper.

[0045] Please refer to Figure 7 In some embodiments, the second toothed belt 55 is a linear synchronous belt, both ends of the second toothed belt 55 are respectively fixed on the second guide rail 52, a second synchronous wheel 54 is arranged between the two second pressure rollers 56 located on the same side of the second guide rail 52, and the two second pressure rollers 56 located on the same side of the second guide rail 52 press the second toothed belt 55 into the second guide groove 521, so that the second motor 53 is connected to the second pressure roller 56 by transmission. In this embodiment, when the second motor 53 drives the second synchronous wheel 54 to rotate, since the two ends of the second toothed belt 55 are respectively fixed on the second guide rail 52, the reaction force of the second synchronous wheel 54 drives the second motor 53 and the roller bracket 51 to move, and the roller bracket 51 is rollingly supported on the second guide rail 52 by four second pressure rollers 56. The second toothed belt 55 is pressed into the second guide groove 521 by two second pressure rollers 56 located on the same side of the second guide rail 52, so that the roller bracket 51 can smoothly drive the engraving head 3 to move with high precision, and can ensure the stability of the high-speed operation of the roller bracket 51, and reduce the noise generated when the roller bracket 51 runs at high speed.

[0046] Please also read Figure 1 , Figure 7 and Figure 8 The embodiment of the utility model also provides a Braille pattern engraving machine, which includes an engraving table 4, an engraving head 3, a driving device for driving the engraving head 3, and a second moving module 5. The engraving table 4 is used to carry paper on which the Braille pattern can be engraved. The engraving head 3 is used to engrave the Braille convex dots that constitute the Braille pattern on the paper. The driving device for driving the engraving head 3 includes the above-mentioned first moving module 1 and the electromagnetic actuating mechanism 2. The moving mechanism composed of the first moving module 1 and the second moving module 5 is used to drive the engraving head 3 to perform two-dimensional movement on a two-dimensional plane parallel to the paper. The electromagnetic actuating mechanism 2 is connected to the engraving head 3, and the electromagnetic actuating mechanism 2 is used to drive the engraving head 3 to move along the Z-axis direction to realize the action of the engraving head 3 engraving the Braille convex dots and retracting after the engraving is completed.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A driving device for driving an imprinting head, characterized in that: include: A first movable module is used to drive the engraving head to move along the X-axis direction. The first movable module includes a slide table, a first guide rail, a first motor and four first pressure rollers. Two first pressure rollers are respectively provided on both sides of the first guide rail. The rolling surface of each first pressure roller is in rolling contact with the first guide groove on the corresponding side of the first guide rail. The first motor is arranged on the slide table. The first motor is connected to the first pressure roller in a transmission manner so that the slide table can be driven to move along the X-axis direction when the first motor is working. as well as An electromagnetic actuation mechanism is used to drive the engraving head to move along the Z-axis direction to achieve the action of engraving the Braille convex dots and retracting the engraving head after engraving is completed; the electromagnetic actuation mechanism includes a fixed seat fixedly connected to the slide table, a moving magnet used to drive the engraving head to move along the Z-axis direction, an electromagnet used to interact with the moving magnet to drive the moving magnet to move downward along the Z-axis direction, and an elastic member used to drive the moving magnet to move upward and reset along the Z-axis direction, the electromagnet is fixedly arranged on the fixed seat, and the moving magnet can be slidably arranged on the fixed seat along the Z-axis direction.

2. The driving device for driving the imprinting head according to claim 1, characterized in that: A accommodating cavity is provided inside the fixing seat, the electromagnet is provided in the accommodating cavity, the fixing seat is provided with a first limiting hole and a second limiting hole connected to the accommodating cavity, the first limiting hole and the second limiting hole are arranged correspondingly up and down along the Z-axis direction, and the moving magnet can be slidably inserted in the first limiting hole and the second limiting hole.

3. The driving device for driving the imprinting head according to claim 2, characterized in that: The electromagnet is in a cylindrical structure, the moving magnet is in a columnar structure extending along the Z-axis direction, and the electromagnet is sleeved on the outer side of the moving magnet.

4. The driving device for driving the imprinting head according to claim 2, characterized in that: The moving magnet is in a columnar structure extending along the Z-axis direction, and a stopper is provided on the moving magnet for cooperating with the fixing seat to limit the upward movement and reset position of the moving magnet.

5. The driving device for driving the imprinting head according to claim 4, characterized in that: The stopper is a convex ring structure extending radially outward from the bottom end of the moving magnet, and the outer diameter of the convex ring structure is greater than the diameter of the second limiting hole.

6. The driving device for driving the imprinting head according to claim 2, characterized in that: The moving magnet is in a columnar structure extending along the Z-axis direction.

7. The driving device for driving the imprinting head according to claim 1, characterized in that: The first moving module also includes a first synchronous wheel and a first toothed belt. Two first pressure rollers are respectively provided on both sides of the first guide rail. The rolling surface of each first pressure roller is in rolling contact with the first guide groove on the corresponding side of the first guide rail. The first synchronous wheel is connected to the output shaft of the first motor. The tooth portion of the first toothed belt is meshed with the tooth portion on the first synchronous wheel, so that when the first motor drives the first synchronous wheel to rotate, the slide can move along the X-axis direction.

8. The driving device for driving the imprinting head according to claim 7, characterized in that: The first toothed belt is a linear synchronous belt, and both ends of the first toothed belt are respectively fixed on the first guide rail. The first synchronous wheel is arranged between the two first pressure rollers located on the same side of the first guide rail. The two first pressure rollers located on the same side of the first guide rail press the first toothed belt into the first guide groove so that the first motor is connected to the first pressure roller by transmission.

9. The driving device for driving an imprinting head according to any one of claims 1 to 8, characterized in that: The elastic member is a spring, which is sleeved on the moving magnet, a first end of the spring abuts against the fixing seat, and a second end of the spring abuts against a supporting portion at the top end of the moving magnet.

10. A Braille graphic engraving machine, characterized in that: The invention comprises a driving device for driving an imprinting head as claimed in any one of claims 1 to 9.

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