Laser direct writing equipment

Abstract

The laser direct writing equipment comprises a vertical plate, an upper horizontal guide rail assembly, a lower horizontal guide rail assembly, a vertical guide rail component, a laser component and a control module, the upper horizontal guide rail assembly and the lower horizontal guide rail assembly are horizontally arranged at the upper end and the lower end of the same side of the vertical plate in parallel. The laser component comprises a base, multiple rows of lasers are installed on the base, a plurality of lasers are distributed in each row, and under the control of the control module, the multiple lasers move back and forth on the vertical guide rail component and step by step section by section in the horizontal direction from one side of the laser direct writing equipment to the other side of the laser direct writing equipment by a stepping distance d; and exposing the photosensitive coatings of the plurality of vertical sections section by section. According to the embodiment of the invention, the possibility of deflection of the plurality of lasers on the laser direct writing equipment in the horizontal movement exposure process is reduced, and the image exposure precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser direct writing, and in particular to a laser direct writing device. Background Art

[0002] refer to Figure 1 The laser direct imaging device 100 includes an upper horizontal guide rail assembly 101, a lower horizontal guide rail assembly 102, a vertical plate 103, and a laser motion assembly 104. The upper and lower ends of the laser motion assembly 104 are respectively mounted on the upper horizontal guide rail assembly 101 and the lower horizontal guide rail assembly 102. A conveyor belt 106 is also arranged parallel to the upper and lower horizontal guide rail assemblies 101 and 102. The left and right ends of the conveyor belt 106 are respectively mounted on a motor 108 and a driven wheel 110. The laser motion assembly 104 is arranged on the conveyor belt 106. Under the control of a control module 109, the motor 108 drives the upper and lower ends of the laser motion assembly 104 to reciprocate left and right on the upper and lower horizontal guide rail assemblies 101 and 102 respectively through the conveyor belt 106. Laser motion assembly 104 includes a vertical slot 104A and a mounting base 104B. Thirteen lasers 105A through 105M are shown mounted on mounting base 104B in a vertical row L. These 13 lasers 105A through 105M represent a number of lasers. Mounting base 104B drives the lasers to move vertically relative to slot 104A. This allows the lasers to move both horizontally and vertically within slot 104A.

[0003] refer to Figure 2 In theory, after the laser motion assembly 104 moves horizontally for a distance t, the laser motion assembly 104 always remains perpendicular to the upper horizontal guide rail assembly 101 and the lower horizontal guide rail assembly 102, that is, the line formed by the centers of the lasers 105A to 105M is always in a vertical state. Figure 3 However, in reality, during horizontal motion, the upper and lower ends of laser motion assembly 104 move asynchronously between upper horizontal guide rail assembly 101 and lower horizontal guide rail assembly 102, causing deflection of laser motion assembly 104. This causes the line connecting the centers of the multiple lasers to be off-vertically, leading to laser exposure errors. It is understandable that the farther the top laser 105A is from the bottom laser 105M, the greater the deflection distance p, resulting in more severe exposure errors. Summary of the Invention

[0004] The present invention provides a laser direct writing device, which aims to solve the problem of laser exposure error caused by deflection of a laser component in a vertical direction.

[0005] The scheme of the present invention is as follows: A laser direct writing device includes: a vertical plate, an upper horizontal guide rail assembly, a lower horizontal guide rail assembly, a vertical guide rail component, a laser component, and a control module; the upper horizontal guide rail assembly and the lower horizontal guide rail assembly are horizontally and parallelly arranged at the upper and lower ends of the same side of the vertical plate; The laser assembly includes a base, on which are mounted lasers distributed in multiple rows, with several lasers distributed in each row. Under the control of a control module, the lasers move back and forth on a vertical guide rail assembly, stepping horizontally from one side of the laser direct writing device to the other side at a stepping distance d, exposing the photosensitive coating of several vertical sections step by step to reduce the possibility of deflection of the lasers during horizontal movement.

[0006] In some embodiments, exposing a plurality of vertical segments of the photosensitive coating layer one by one from one side of the laser direct writing device to the other side in a horizontal direction specifically includes: After the control module controls several lasers to expose the photosensitive coating of the first vertical segment located on one side of the laser direct writing device, it controls the vertical guide rail component to move a set step distance d in the horizontal direction, and then controls the laser component to move on the vertical guide rail component to expose the photosensitive coating of the second vertical segment; the control module controls the vertical guide rail component to continue to move a step distance d along the same horizontal movement direction, and controls the laser component to move on the vertical guide rail component to expose the photosensitive coating of the third vertical segment; under the control of the control module, the laser component and the vertical guide rail component gradually expose the remaining photosensitive coating.

[0007] In some embodiments, the vertical guide rail component includes: a first base vertically mounted on the upper horizontal guide rail assembly and the lower horizontal guide rail assembly, a vertical guide rail module vertically mounted on the first base, the vertical guide rail module including: a left vertical guide rail and a right vertical guide rail, a motor mounted on the upper end of the first base, a driving wheel mounted on the output shaft of the motor, the driving wheel connected to a driven wheel via a vertical conveyor belt, and the driven wheel mounted on the lower end of the first base; the vertical conveyor belt is arranged between the left vertical guide rail and the right vertical guide rail, and the laser component is detachably mounted on the vertical conveyor belt; The motor drives the driving wheel to rotate, and the driving wheel drives the laser component to move up and down on the left vertical guide rail and the right vertical guide rail through the vertical conveyor belt.

[0008] In some embodiments, the laser direct writing device also includes a horizontal driving component that drives the vertical guide rail component and the laser component to move simultaneously in the horizontal direction. The horizontal driving component includes an upper horizontal driving assembly and a lower horizontal driving assembly. The upper horizontal driving assembly and the lower horizontal driving assembly drive the vertical guide rail component and the laser component to move synchronously horizontally in the upper horizontal guide rail assembly and the lower horizontal guide rail assembly respectively.

[0009] In some embodiments, the first base is made of marble.

[0010] In some embodiments, the upper horizontal drive assembly includes an upper stepper motor and an upper slider assembly connected together, and the lower horizontal drive assembly includes a lower stepper motor and a lower slider assembly connected together; the upper stepper motor and the lower stepper motor rotate synchronously, and the upper slider assembly and the lower slider assembly respectively move synchronously on the upper horizontal guide rail assembly and the lower horizontal guide rail assembly, driving the vertical guide rail component and the laser component to move synchronously in the horizontal direction.

[0011] In some embodiments, the vertical conveyor belt is a synchronous belt.

[0012] In some embodiments, the laser component further includes a laser base, and a plurality of lasers are disposed on the laser base.

[0013] Technical effects of the present invention: (1) The laser component divides the total horizontal movement distance S into N steps, and each horizontal step distance is d. During each horizontal step of the vertical guide rail component, the control module can eliminate the movement deviation of the upper and lower ends of the vertical guide rail of the vertical guide rail component in real time by controlling the upper and lower ends of the vertical guide rail, so that the upper and lower ends of the vertical guide rail are as close to the same vertical line as possible, ensuring that the multiple lasers on the base do not deflect during the horizontal exposure process, thereby reducing exposure errors; (2) The vertical guide rail assembly includes a heavy first base made of marble. The vertical guide rail is installed on the first base. Therefore, the vertical guide rail installed on the first base is less likely to deflect. Therefore, the possibility of the multiple lasers installed on the base being deflected as a whole is less, and the possibility of exposure errors is less.

[0014] (3) Several lasers are distributed on the base in multiple rows, with each row containing several lasers (the number of lasers in each row is the same or different) instead of being installed in the same vertical column as described in the background art. Since the distance e between the uppermost laser and the lowermost laser among the several lasers on the base is much smaller than the distance between the uppermost laser and the lowermost laser in the laser components distributed in a vertical column in the background art, even if the base is deflected, the degree of deflection of the several lasers on the base is small, and the possibility of exposure error is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a simplified structural diagram of the laser direct writing device in the prior art; Figure 2 for Figure 1Schematic diagram showing that the upper and lower ends of the laser motion assembly 104 are still on the same vertical line after moving horizontally a distance t under ideal conditions; Figure 3 for Figure 1 Schematic diagram of the laser motion component 104 in the actual motion process, in which the upper end portion deflects to the right after moving horizontally a distance t; Figure 4 This is a simplified structural diagram of the laser direct writing device in an embodiment of the present application; Figure 5 Schematic diagram of the structure of the vertical guide rail component 400; Figure 6 for Figure 5 A partial enlarged view of the middle part; Figure 7 for Figure 5 Another perspective view of the middle vertical rail component 400; Figure 8 for Figure 7 A partial enlarged view of point B in the middle; Figure 9 Schematic diagram of the horizontal stepping distance d of the vertical guide rail component 400 after the plurality of lasers 303 of the laser component 300 move up and down on the vertical guide rail component 400 to expose a vertical section of the photosensitive coating; Figure 10 is a trajectory diagram of the laser component 300; Figure 11 FIG2 is a schematic diagram showing that the photosensitive coating 602 is divided into a plurality of vertical segments in order from right to left; Figure 12 for Figure 11 A partial enlarged view of point C; Figure 13 for Figure 11 A partial enlarged view of point D. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention. The terms "first", "second", and "third" are only used to describe the difference and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, 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 a direct connection, an indirect connection through an intermediate object, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0018] In this application, laser direct writing equipment and laser direct imaging device are different names for the same equipment.

[0019] refer to Figure 4 The present application discloses a laser direct writing device 200, comprising: a vertical plate 103, an upper horizontal guide rail assembly 101, a lower horizontal guide rail assembly 102, a vertical guide rail component 400, a laser component 300, and a control module 109; the upper horizontal guide rail assembly 101 and the lower horizontal guide rail assembly 102 are horizontally and parallelly arranged at the upper and lower ends of the same side of the vertical plate 103; refer to Figures 5 to 9 The laser component 300 includes a base 301, a plurality of mounting holes 302 are arranged on the base 301, and a laser 303 is installed on each mounting hole 302 (see Figure 6 and Figure 9 ),from Figure 6 As can be seen, the mounting holes 302 on the base 301 are arranged in multiple rows, and the number of mounting holes 302 in each row may be the same or different. Therefore, the lasers 303 are arranged in multiple rows on the base 301, and the number of lasers in each row does not need to be the same. Under the control of the control module 109, the lasers 303 on the laser assembly 300 move back and forth on the vertical guide rail assembly 400, exposing the photosensitive coating in multiple vertical sections horizontally from one side of the laser direct writing device 200 to the other. Figure 9 In FIG. 2 , the left side shows a front view of the laser direct writing device 200, and the right side shows a left view of the laser direct writing device 200. Figure 9 , Figure 11-13: According to the movement mode of the laser component 300, all the photosensitive coatings 602 coated on the exposure screen 601 are divided into N vertical photosensitive coating segments from right to left, for example: the first vertical segment photosensitive coating 602A on the right is represented, the second vertical segment photosensitive coating 602B from the right is represented, the third vertical segment photosensitive coating 602C is represented, the fourth vertical segment photosensitive coating 602D is represented... the N-1 vertical segment photosensitive coating 602 (N-1) is represented, and the last N segment (that is, the leftmost segment) vertical segment photosensitive coating 602N is represented.

[0020] Figure 9 In the embodiment, the lowest point K1 at the rightmost position 1 of the laser component 300 is taken as the initial position. Under the control of the control module 109, the laser component 300 moves upward from the lowest point K1 to the highest point K2 on the vertical guide rail component 400. The distance from K1 to K2 is defined as h. The control module 109 controls the plurality of lasers 303 on the laser component 300 to emit light. The plurality of lasers 303 on the laser component 300 expose the first vertical segment of the photosensitive coating 602A on the rightmost side of the photosensitive coating 602 coated on the screen 601 (see FIG. 1 ). Figure 12 ). refer to Figure 9 and Figure 10 After exposing the first vertical section of the photosensitive coating 602A on the far right, the laser assembly 300 is located at the highest point K2 of position 1. The vertical guide rail assembly 400, under the control of the control module 109, steps a displacement d to the left on the upper horizontal guide rail assembly 101 and the lower horizontal guide rail assembly 102. The control module 109 controls the laser assembly 300 at the highest point K2 to move from top to bottom on the vertical guide rail assembly 400 to expose the second vertical section of the photosensitive coating 602B (see FIG. 1 ). Figure 11 , Figure 12 ), until it is at the lowest point K1 again. Then, under the control of the control module 109, the vertical guide rail component 400 steps a second displacement d to the left on the upper horizontal guide rail component 101 and the lower horizontal guide rail component 102, and exposes the third vertical segment of the photosensitive coating 602C in order from bottom to top........This process is repeated. After the penultimate segment (i.e., the last N-1 segment) of the vertical segment of the photosensitive coating 602 (N-1) is exposed, the vertical guide rail component 400, under the control of the control module 109, steps a last displacement d to the left on the upper horizontal guide rail component 101 and the lower horizontal guide rail component 102, and the laser component 300 moves on the vertical guide rail component 400 to expose the last N vertical segment of the photosensitive coating 602N. Reference Figure 10 During the entire exposure process, the movement trajectory of the laser component 300 is shown in the figure, where the arrow direction indicates the movement direction of the laser component 300, and the laser component 300 steps a distance S=N*d from right to left in the horizontal direction.

[0021] from Figure 11-13 It can be seen that in order to avoid leaking of the photosensitive coating, it is necessary to Figure 9 The vertical center line 304 of the base 301 for mounting a plurality of lasers 303 is set to be aligned with Figure 11 The rightmost edge 602A1 of the middle photosensitive coating 602 is aligned. The width of the first vertical segment photosensitive coating 602A is only half of the width of the second vertical segment photosensitive coating 602B. Therefore, the lasers 303 are used to expose the rightmost first vertical segment photosensitive coating 602A (e.g. Figure 12 ), you need to set Figure 6 Several lasers 303 on the base 301 located to the left of the vertical centerline 304 emit light. When exposing the second vertical segment of photosensitive coating 602B to the penultimate vertical segment of photosensitive coating 602 (N-1), all lasers 303 on the base 301 emit light normally (normal emission here does not mean that every laser emits light, but rather that the laser emits light when passing through the photosensitive coating to be exposed).

[0022] Figure 11 There are two cases for the width of the last N vertical segment of the photosensitive coating 602N on the left: the first is that Figure 13 As shown in FIG: the width of the remaining Nth vertical segment photosensitive coating 602N is only half of the width of the normal second vertical segment photosensitive coating 602B, so when exposing the photosensitive coating 602N, Figure 6 The vertical center line 304 of the base 301 in the embodiment should be aligned with the right edge line 602N1 of the photosensitive coating 602N. Figure 6 Only the lasers 303 on the right side of the vertical center line 304 need to emit light on the base 301; in another case (not shown), the last vertical section of the photosensitive coating is 602 (N-1), and its width is the same as the width of the second vertical section of the photosensitive coating 602B, and the lasers 303 on the base 301 are controlled to emit light normally.

[0023] In other embodiments, the laser component 300 may also move from top to bottom when exposing the first vertical segment of the photosensitive coating 602A on the far right. It is understood that in this case, the laser component 300 may move from bottom to top when exposing the second vertical segment of the photosensitive coating. Furthermore, the first vertical segment of the photosensitive coating exposed by the laser component 300 may be positioned at the far left of the laser direct writing device 200, and the laser component may be stepped rightward from left to right, each stepping a distance d, to expose a plurality of vertical segments of the photosensitive coating.

[0024] In summary, the laser component 300 moves up and down on the vertical guide rail component 400 and steps step by step in the horizontal direction in the exposure mode, and a plurality of lasers are distributed in a manner that is not distributed in the same vertical column. Figure 6 The base 301 shown overcomes the problem described in the background art of vertically arranging multiple lasers in the same vertical column, which causes the laser motion assembly 104 to deflect in the horizontal direction over time, resulting in inaccurate laser exposure. This is because: First, reference Figure 4 and Figure 5 The first vertical guide rail component 400 includes a vertical guide rail module 410 and a first base 421. The first base 421 is installed on the upper horizontal guide rail assembly 101 and the lower horizontal guide rail assembly 102. The vertical guide rail module 410 is installed on the first base 421. The vertical guide rail module 410 includes a left vertical guide rail 411 and a right vertical guide rail 412: the laser component can move up and down on the vertical guide rail, and the total horizontal movement distance S of the vertical guide rail is divided into N steps, and the horizontal step distance of each time is d. During each horizontal step of the vertical guide rail component, if the distance moved by the upper end of the vertical guide rail module 410 on the upper horizontal guide rail assembly is greater than or less than d, and the distance moved by the lower end of the vertical guide rail module 410 on the lower horizontal guide rail assembly is less than or greater than d, the control module can eliminate the movement deviation of the upper and lower ends of the vertical guide rail 410 in real time by controlling the vertical guide rail 410, so that the upper and lower ends of the vertical guide rail 410 are as close to the same vertical line as possible at any time, ensuring that the base 301 always moves up and down vertically, and the multiple lasers on the base will not be deflected as a whole, reducing exposure errors. However, in the background art, due to the vertical groove 104A (see Figure 1 ) are constantly moving horizontally, and the motion errors of the upper and lower ends of the vertical guide rails are not corrected in time during the movement. As a result, the cumulative motion errors of the upper and lower ends of the vertical slot 104A become larger and larger, and the vertical slot 104A deflects more seriously in the vertical direction. After a certain distance of horizontal movement, several lasers that were originally in the same vertical column are no longer in the same vertical column (e.g. Figure 3 shown).

[0025] Second, the vertical guide rail component also includes a first base with a heavier mass. The vertical guide rail is installed on the first base. Since the first base has a heavier mass, the vertical guide rail installed on the first base is less likely to deflect. Therefore, the possibility of the base moving up and down on the vertical guide rail deflecting is greatly reduced, and the possibility of the multiple lasers installed on the base being deflected as a whole is smaller.

[0026] Third, reference Figure 6, several lasers are distributed on the base instead of being installed in the same vertical column as described in the background art. Since the distance e between the uppermost laser and the lowermost laser on the base is much smaller than Figure 1 The distance between the uppermost laser 105A and the lowermost laser 105M is the same as that between the uppermost laser 105A and the lowermost laser 105M. Therefore, even if the base deflects, the deflection degree of the lasers on the base is smaller than the deflection degree of the laser 105A relative to the laser 105M.

[0027] refer to Figure 5 and Figure 6 In some embodiments, the vertical guide rail component 400 further includes: a motor 422 mounted on the upper end of the first base 421; a driving wheel 423 is mounted on the output shaft of the motor 422; the driving wheel 423 is connected to the driven wheel 110 via a vertical conveyor belt 106; the driven wheel 110 is mounted on the lower end of the first base 421; the vertical conveyor belt 106 is disposed between the left vertical guide rail 411 and the right vertical guide rail 412; and the laser component 300 is detachably mounted on the vertical conveyor belt 106; The motor 422 drives the driving wheel 423 to rotate, and the driving wheel 423 drives the laser component 300 to move up and down on the left vertical guide rail 411 and the right vertical guide rail 412 through the vertical conveyor belt 106, thereby driving the plurality of lasers 303 on the base 301 (see Figure 9 ) moves up and down.

[0028] In some embodiments, the vertical conveyor belt 106 is preferably a synchronous belt.

[0029] refer to Figure 6 In some embodiments, the distribution of the plurality of lasers 303 on the base 301 can be a regular array distribution or an irregular matrix distribution, and there is no strict regulation on this.

[0030] In addition, in order to ensure that the vertical guide rail component 400 and the laser component 300 can step simultaneously as a whole on the upper horizontal guide rail assembly 101 and the lower horizontal guide rail assembly 102, Figure 4 The laser direct writing device 200 further includes a horizontal drive component, which includes an upper horizontal drive assembly 610 and a lower horizontal drive assembly 620. The upper horizontal drive assembly 610 and the lower horizontal drive assembly 620 are both connected to the control module 109. The control module 109 controls the upper horizontal drive assembly 610 and the lower horizontal drive assembly 620 to move horizontally in synchronization, thereby jointly driving the vertical guide rail assembly 400 and the laser assembly 300 to move horizontally in steps.

[0031] In some embodiments, reference Figure 4The upper horizontal drive assembly 610 includes an upper stepper motor (not shown) and an upper slider assembly 611 connected together, and the lower horizontal drive assembly 620 includes a lower stepper motor (not shown) and a lower slider assembly 621 connected together; the upper stepper motor and the lower stepper motor work synchronously, and by driving the upper slider assembly 611 and the lower slider assembly 621 to synchronously step on the upper horizontal guide rail assembly 101 and the lower horizontal guide rail assembly 102 respectively, the vertical guide rail component 300 and the laser component 400 are driven to move synchronously in the horizontal direction, ensuring that the left vertical guide rail 411 and the right vertical guide rail 412 (see Figure 5 ) in the vertical direction to minimize deflection. It should be noted that the upper and lower stepper motors are of the same specifications, as are the upper and lower horizontal guide rail assemblies 101 and 102. This ensures consistency between the upper and lower horizontal drive assemblies 610 and 620.

[0032] refer to Figure 4 In some embodiments, the upper horizontal guide rail assembly 101 includes two horizontally arranged first upper horizontal guide rails 101A and second upper horizontal guide rails 101B, which are horizontally mounted on the upper end of the second base 201; the lower horizontal guide rail assembly 102 includes two horizontally arranged first lower horizontal guide rails 102A and second lower horizontal guide rails 102B, which are horizontally mounted on the second base 201. The second base 201 is vertically mounted on the front end surface of the vertical stand 103.

[0033] In some embodiments, the first base 421 and the second base 201 are both made of marble. Marble has the advantage of high density, so the second base 201 has a heavier mass.

[0034] refer to Figure 5 The first base 421, the left vertical guide rail 411, the right vertical guide rail 412, the motor 422, the driving wheel 423, the vertical conveyor belt 106 and the laser component 300 are as a whole, under the control of the control module 109, driven by the upper horizontal drive assembly 610 and the lower horizontal drive assembly 620. Figure 4 The upper horizontal guide rail assembly 101 and the lower horizontal guide rail assembly 102 are shown to move forward in a horizontal manner. It is understood that since the first base 421 is heavy and the left vertical guide rail 411 and the right vertical guide rail 412 are installed vertically and parallel to the first base, it is also possible to ensure that the laser component 300 does not deflect in the vertical direction.

[0035] It should be noted that the laser direct writing device referred to in this application includes, in addition to the components, assemblies, and parts mentioned above, other components, assemblies, and parts not shown. Since the other components, assemblies, and parts not shown are not closely related to the technical problem to be solved by this application, this application does not provide a detailed description of them. In addition, the control module referred to in this application refers to a chip processor with data storage, processing, and transmission functions, or an information processing module with similar functions.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser direct writing device, characterized in that: include: A vertical plate, an upper horizontal guide rail assembly, a lower horizontal guide rail assembly, a vertical guide rail component, a laser component, and a control module; the upper horizontal guide rail assembly and the lower horizontal guide rail assembly are horizontally and parallelly arranged at the upper and lower ends of the same side of the vertical plate; The laser component includes a base, on which are installed several lasers distributed in multiple rows, with each row having several lasers. Under the control of the control module, the several lasers move back and forth on the vertical guide rail component, and move in sections from one side of the laser direct writing device to the other side in the horizontal direction with a step distance d, exposing the photosensitive coating of several vertical sections section by section, so as to reduce the possibility of deflection of the several lasers during the horizontal movement.

2. The laser direct writing device according to claim 1, characterized in that: Expose a plurality of vertical sections of the photosensitive coating layer in a horizontal direction from one side of the laser direct writing device to the other side, specifically including: The control module controls several of the lasers to stop emitting light after exposing the photosensitive coating of the first vertical segment located on one side of the laser direct writing device, and then controls the vertical guide rail component to move the step distance d in the horizontal direction, and controls the laser component to move on the vertical guide rail component to expose the photosensitive coating of the second vertical segment; the control module continues to control the vertical guide rail component to continue to move the step distance d along the same horizontal movement direction, and controls the laser component to move on the vertical guide rail component to expose the photosensitive coating of the third vertical segment; under the control of the control module, the laser component and the vertical guide rail component gradually expose the photosensitive coating of the remaining vertical segments.

3. The laser direct writing device according to claim 1 or 2, characterized in that: The vertical guide rail component includes: a first base vertically mounted on the upper horizontal guide rail assembly and the lower horizontal guide rail assembly, a vertical guide rail module vertically mounted on the first base, and the vertical guide rail module includes: a left vertical guide rail and a right vertical guide rail. A motor is mounted on the upper end of the first base, a driving wheel is mounted on the output shaft of the motor, the driving wheel is connected to a driven wheel via a vertical conveyor belt, and the driven wheel is mounted on the lower end of the first base; the vertical conveyor belt is arranged between the left vertical guide rail and the right vertical guide rail, and the laser component is detachably mounted on the vertical conveyor belt; The motor drives the driving wheel to rotate, and the driving wheel drives the laser component to move up and down on the left vertical guide rail and the right vertical guide rail through the vertical conveyor belt.

4. The laser direct writing device according to claim 3, characterized in that: The laser direct writing device also includes a horizontal driving component that drives the vertical guide rail component and the laser component to move simultaneously in the horizontal direction. The horizontal driving component includes an upper horizontal driving assembly and a lower horizontal driving assembly. The upper horizontal driving assembly and the lower horizontal driving assembly drive the vertical guide rail component and the laser component to move synchronously horizontally in the upper horizontal guide rail assembly and the lower horizontal guide rail assembly respectively.

5. The laser direct writing device according to claim 3, characterized in that: The first base is made of marble.

6. The laser direct writing device according to claim 4, characterized in that: The upper horizontal drive assembly includes an upper stepper motor and an upper slider assembly connected together, and the lower horizontal drive assembly includes a lower stepper motor and a lower slider assembly connected together; the upper stepper motor and the lower stepper motor rotate synchronously, and the upper slider assembly and the lower slider assembly respectively move synchronously on the upper horizontal guide rail assembly and the lower horizontal guide rail assembly, thereby driving the vertical guide rail component and the laser component to move synchronously in the horizontal direction.

7. The laser direct writing device according to claim 3, characterized in that: The vertical conveyor belt is a synchronous belt.

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