CN217689773U - Bidirectional reset assembly and direct imaging equipment - Google Patents

Abstract

The embodiment of the application provides a bidirectional reset assembly and a direct imaging device, and the bidirectional reset assembly or the direct imaging device has the advantages that the reset automatic detection in the horizontal direction and the vertical direction is realized on the basis of the same adapter plate, and the reset detection precision of the bidirectional reset assembly or the laser imaging device in the reciprocating motion process is improved. In addition, a plurality of photoelectric sensors are arranged on the same adapter plate, detection data transmission can be achieved only through the same interface, and wiring cost is saved.

Description

Bidirectional reset assembly and direct imaging equipment

Technical Field

The application relates to the technical field of computer direct imaging, in particular to a bidirectional reset assembly and a direct imaging device.

Background

The computer direct imaging technology can control the photosensitive coating on the scanning exposure surface of the light source component to be exposed, and the exposed photosensitive coating is developed to generate a required developed image. Compared with the existing mask exposure imaging technology, the laser imaging technology does not need to manufacture a mask, so that the production cost is greatly saved.

An existing direct imaging device (for example, the application number is 201310084860.3, in which a laser direct plate making device for a planar screen printing plate) includes a mechanical structure that drives a laser component to perform reciprocating scanning in a preset horizontal direction and adjust scanning pixel rows in a vertical direction, controls laser to perform line-by-line exposure on pixel rows of a surface to be processed, and then performs scanning exposure on a next pixel row after vertically adjusting the vertical height of the laser until all pixel rows are exposed.

The applicant finds that if the starting point of each pixel row of the laser scanning is different, pixel offset can be caused, and in order to guarantee the consistency of imaging in the industrial plate making process, the starting point of imaging scanning of each plate making needs to be guaranteed to be the same. In the existing laser imaging equipment, manual adjustment or mechanical limit structure is often adopted for resetting, and accurate resetting cannot be achieved. Therefore, the existing direct imaging device needs to be improved, and the laser position can be accurately reset in the horizontal direction and the vertical direction.

Disclosure of Invention

The embodiment of the application provides a bidirectional reset assembly and a direct imaging device, which are used for realizing.

A first aspect of an embodiment of the present application provides a bidirectional reset assembly, which may include:

the device comprises a sensor adapter plate and a scanning moving assembly;

the scanning moving assembly is provided with a horizontal guide rail, a horizontal moving platform and a vertical moving platform; the horizontal moving platform is arranged on the horizontal guide rail and can move along the horizontal guide rail; the sensor adapter plate is fixedly connected to the horizontal moving platform, a vertical guide rail is further arranged on the horizontal moving platform, and the vertical moving platform is arranged on the vertical guide rail and can move along the vertical guide rail;

the sensor adapter plate is fixed on the horizontal moving platform, and a first photoelectric sensor and a second photoelectric sensor which are opposite photoelectric sensors are arranged on the sensor adapter plate;

the light emitter and the light receiver of the first photoelectric sensor are respectively distributed on two sides of a path of horizontal displacement, and when a first limiting sheet fixed at a horizontal reset point blocks a light path between the light emitter and the light receiver, the light receiver corresponding to the first photoelectric sensor is triggered to output a first detection signal;

the illuminator and the light receiver of the second photoelectric sensor are respectively distributed on two sides of a path of vertical displacement, and when a second limiting sheet fixedly connected to the vertical moving platform blocks a light path between the illuminator and the light receiver, the light receiver corresponding to the second photoelectric sensor is triggered to output a second detection signal.

Optionally, as a possible implementation manner, in the bidirectional reset assembly in the embodiment of the present application, a third photoelectric sensor is further fixedly disposed on the sensor adapter plate on the same side as the first photoelectric sensor;

the light emitter and the light receiver of the third photoelectric sensor are respectively distributed on two sides of a path of horizontal displacement, and when the first marker blocks a light path between the light emitter and the light receiver, the corresponding light receiver outputs a third detection signal; the third photosensor is closer to a midpoint of a path of the horizontal direction displacement than the first photosensor.

Optionally, as a possible implementation manner, in the bidirectional reset assembly in the embodiment of the present application, the first photoelectric sensor and the second photoelectric sensor are disposed on the same side or different sides of the sensor interposer.

Optionally, as a possible implementation manner, in the bidirectional reset assembly in the embodiment of the present application, the sensor adapter plate is further provided with a unified output interface for acquiring detection signals of the plurality of opposite-type photoelectric sensors.

Optionally, as a possible implementation manner, in the bidirectional reset assembly in the embodiment of the present application, the first photosensor and the second photosensor are groove type photo-correlation sensors.

A second aspect of embodiments of the present application provides a direct imaging apparatus, which may include:

an optical assembly, a controller and a bi-directional reset assembly as in any one of the possible embodiments of the first aspect and the first aspect; wherein the content of the first and second substances,

the optical assembly is fixed on the vertical moving platform and can move along the horizontal direction and the vertical direction under the driving of the scanning moving assembly;

the optical assembly comprises a plurality of lasers;

the controller is electrically connected with the optical assembly and used for generating a control signal for controlling the laser switch according to the real-time position of each laser so as to selectively expose the pixel points on the photosensitive coating on the exposure surface.

Optionally, as a possible implementation manner, the direct imaging apparatus in the embodiment of the present application may further include: the beam part comprises an upper beam and a lower beam which can move relatively, and clamps for fixing the screen frame where the exposure surface is located are arranged on the upper beam and the lower beam.

Optionally, as a possible implementation manner, in an embodiment of the present application, the beam member further includes an upper beam adjusting assembly, where the upper beam adjusting assembly includes a first driving motor, a first lead screw lifter, and a second lead screw lifter;

the nut mechanisms of the first lead screw lifter and the second lead screw lifter are both fixedly connected with the upper cross beam;

the first driving motor is in transmission connection with the first lead screw lifter and the second lead screw lifter through a synchronous belt and is used for driving nut mechanisms of the first lead screw lifter and the second lead screw lifter to drive the upper cross beam to move along a preset linear direction.

Optionally, as a possible implementation manner, in an embodiment of the present application, the beam component further includes a lower beam adjusting assembly, where the lower beam adjusting assembly includes a second driving motor, a third lead screw lift, and a fourth lead screw lift;

nut mechanisms of the third lead screw lifter and the fourth lead screw lifter are both fixedly connected with the lower cross beam;

the second driving motor is in transmission connection with the third lead screw lifter and the fourth lead screw lifter through a synchronous belt and is used for driving nut mechanisms of the third lead screw lifter and the fourth lead screw lifter to drive the lower cross beam to move along a preset linear direction.

According to the technical scheme, the embodiment of the application has the following advantages:

in the embodiment of the application, a first photoelectric sensor and a second photoelectric sensor are arranged in a bidirectional reset assembly or a direct imaging device in the embodiment of the application, and when the first photoelectric sensor on a horizontal moving platform moves to a first limiting piece fixed at a reset point in the horizontal direction, a light receiver corresponding to the first photoelectric sensor is triggered to output a first detection signal to indicate that the horizontal moving platform moves to the reset point in the horizontal direction; when the second limiting sheet fixedly connected to the vertical moving platform blocks a light path between the light emitter and the light receiver, the light receiver corresponding to the second photoelectric sensor is triggered to output a second detection signal, and the vertical moving platform is indicated to move to a reset point in the vertical direction. Therefore, the reset automatic detection in the horizontal direction and the vertical direction is realized based on the same adapter plate, and the reset detection precision of the bidirectional reset assembly or the laser imaging equipment in the reciprocating motion process is improved. In addition, a plurality of photoelectric sensors are arranged on the same adapter plate, detection data transmission can be achieved only through the same interface, and wiring cost is saved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a bi-directional reduction assembly in an embodiment of the present application;

FIG. 2 is an enlarged bottom view of a portion A of the dual directional reset device of FIG. 1;

fig. 3 is a schematic diagram illustrating a possible positional relationship between a first photosensor and a second photosensor on a sensor interposer according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an embodiment of a direct imaging apparatus in an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description and claims of the present application and in the above-described drawings, the terms "center", "horizontal", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely to facilitate the description of the present application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The term "comprises" and any variations thereof is intended to cover non-exclusive inclusions. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

For ease of understanding, the following describes a specific process in the embodiment of the present application, and referring to fig. 1 to 3, an embodiment of the bidirectional reset device in the embodiment of the present application may include: sensor adapter plate 10, scanning mobile component 20. Wherein the content of the first and second substances,

as shown in fig. 1, the sensor adapter plate 10 is fixedly connected to the scanning moving assembly 20, and the scanning moving assembly 20 can drive the sensor adapter plate 10 to move in a horizontal direction or a vertical direction.

Optionally, as a possible embodiment, as shown in fig. 1, the scanning moving assembly 20 is provided with a horizontal guide rail 201, a horizontal moving platform 202 and a vertical moving platform 203; the horizontal moving platform 202 is arranged on the horizontal guide rail 201 and can move along the horizontal guide rail 201 to form a horizontal moving track; the sensor adapter plate 10 can be fixedly connected to the horizontal moving platform 202, so that the sensor adapter plate 10 can move in the horizontal direction; the horizontal moving platform 202 is further provided with (a plurality of) vertical guide rails 204, and the vertical moving platform 203 is arranged on the vertical guide rails 204 and can move along the vertical guide rails 204.

As shown in fig. 2, a first photoelectric sensor 101 and a second photoelectric sensor 102, which are all correlation photoelectric sensors, are fixedly arranged on the sensor adapter plate 10; the opposite-type photoelectric sensor comprises a light emitter and a light receiver. Optionally, the light emitter and the light receiver of the correlation photoelectric sensor in the present application may be in an independent form, or may be an integrally formed groove-type photoelectric correlation sensor, and the specific form is not limited herein.

The light emitter and the light receiver of the first photoelectric sensor 101 are respectively distributed on two sides of a path of horizontal displacement, when the first photoelectric sensor 101 moves to the first marker 205 fixed on the reset point in the horizontal direction, the first limiting sheet 205 blocks a light path between the light emitter and the light receiver, and the light receiver corresponding to the first photoelectric sensor 101 is triggered to output a first detection signal for indicating that the horizontal displacement platform 202 horizontally moves to the reset point.

The light emitter and the light receiver of the second photoelectric sensor 102 are respectively distributed on two sides of a path of vertical displacement, and when the second limiting sheet 206 fixedly connected to the vertical moving platform 203 blocks a light path between the light emitter and the light receiver, the light receiver corresponding to the second photoelectric sensor 102 outputs a second detection signal for indicating the vertical moving platform 203 to be displaced to a reset point in the vertical direction.

Optionally, as a possible implementation manner, a uniform output interface for acquiring detection signals of the plurality of correlation photoelectric sensors is further disposed on the sensor adapter plate in the embodiment of the present application.

It can be understood that the specific shapes of the first limiting piece 205 and the second limiting piece 206 can be reasonably set according to actual conditions, and only when the horizontal moving platform 202 and the vertical moving platform move to predetermined positions, the corresponding limiting pieces can shield the light paths of the corresponding photoelectric sensors, and the specific shapes are not limited here.

It should be noted that the first photosensor 101 and the second photosensor 102 shown in fig. 1 and fig. 2 are only exemplarily located on the same side of the sensor interposer 10. In practical applications, as shown in fig. 3, the first photoelectric sensor 101 and the second photoelectric sensor 102 may also be located on different sides of the sensor interposer 10, and the specific position distribution may be adjusted according to actual needs, which is not limited herein.

It should be noted that the horizontal direction in the present application may refer to a preset linear direction (for example, when the present application is applied to a direct imaging device, the horizontal direction may be a linear direction parallel to a pixel row), and the vertical direction is a straight line perpendicular to the preset linear direction; the horizontal direction may be a linear direction specified according to requirements under working conditions, and the linear direction is determined along with the determination of the horizontal guide rail, which is not limited herein.

As can be seen from the above disclosure, the first photoelectric sensor 101 and the second photoelectric sensor 102 are disposed on the sensor adapter plate in the bidirectional reset assembly or the direct imaging device in the embodiment of the present application, and when the first photoelectric sensor 101 on the horizontal moving platform 202 moves to the first position-limiting piece 205 fixed to the reset point in the horizontal direction, the light receiver corresponding to the first photoelectric sensor 101 is triggered to output the first detection signal, which indicates that the horizontal moving platform 202 moves to the reset point in the horizontal direction; when the second limiting plate 206 fixedly connected to the vertical moving platform 203 blocks the light path between the light emitter and the light receiver, the light receiver corresponding to the second photoelectric sensor 102 is triggered to output a second detection signal, which indicates that the vertical moving platform 203 moves to the reset point in the vertical direction. Therefore, the reset automatic detection in the horizontal direction and the vertical direction is realized based on the same adapter plate, and the reset detection precision of the bidirectional reset assembly or the laser imaging equipment in the reciprocating motion process is improved. In addition, a plurality of photoelectric sensors are arranged on the same adapter plate, detection data transmission can be achieved only through the same interface, and wiring cost is saved.

Optionally, as a possible implementation manner, in order to prevent the horizontal moving platform in the scanning moving assembly from moving beyond the preset stroke to cause a mechanical collision, as shown in fig. 2, in the embodiment of the present application, a third photosensor 103 may be fixedly disposed on the same side of the sensor adapter plate as the first photosensor 101; the light emitter and the light receiver of the third photoelectric sensor 103 are respectively distributed on two sides of a path of horizontal displacement, and when the first limiting sheet 205 blocks a light path between the light emitter and the light receiver, the light receiver corresponding to the third photoelectric sensor 103 outputs a third detection signal for indicating that the horizontal moving platform 202 moves to the maximum limit position, and controlling the horizontal moving platform 202 to immediately stop moving. Specifically, the third photoelectric sensor 103 is closer to the middle point of the path of the horizontal displacement than the first photoelectric sensor 101, so that the horizontal moving platform firstly passes through the first limiting piece 205 of the reset point, and after the first photoelectric sensor 101 triggers the first detection signal, the third photoelectric sensor 103 triggers the third detection signal, so that the third detection signal is not triggered by mistake in the reset process.

On the basis of the embodiments shown in fig. 1 to 3, the embodiment of the present application further provides a direct imaging apparatus. In one possible implementation, as shown in fig. 4, the direct imaging apparatus may include an optical assembly 30, a controller (not shown), and a bi-directional reset assembly as in any of the embodiments shown in fig. 1-3 above. Wherein the content of the first and second substances,

the optical assembly 30 is fixed on the vertical moving platform 203 of the scanning moving assembly 20 and can move along the horizontal direction and the vertical direction under the driving of the scanning moving assembly 20;

the optical assembly 30 comprises a plurality of lasers 301, and preferably, the lasers 301 in the optical assembly 30 can be distributed along a vertical straight line.

The controller is electrically connected to the optical assembly 30 for generating a control signal for controlling the switching of the lasers according to the real-time position of each laser to selectively expose the pixels on the photosensitive coating on the exposure surface.

In some embodiments, the controller may be a Central Processing Unit (CPU), a microprocessor, or other data Processing chips (e.g., FPGA, PLC, etc.), and may run program codes or process data stored in the memory, execute a computer program, etc., so as to implement the set function, and a specific implementation manner is not limited in this application.

The imaging process of the rotary laser imaging device in the application is as follows: and rasterizing the image to be imaged on the exposure surface to obtain the position information of the laser exposure point on the exposure surface. Then detecting the real-time position of the laser on the laser array in the process of moving the laser on the optical component, and judging whether the position where the laser can be exposed is consistent with the position of a laser exposure point; if the two laser devices are consistent, the corresponding laser device can be started to emit laser for exposure; and the above steps are circulated until the scanning and the exposure of the whole exposure surface are completed.

Optionally, as a possible implementation manner, in order to improve the adaptability of the direct imaging apparatus to various sizes of exposure surfaces, the position of the beam where the clamp for clamping the frame is located may be adjusted according to the size of the frame where the exposure surface is located to adapt to frames of different sizes. For this purpose, in a possible embodiment, the direct imaging apparatus may further include a beam member 40, the beam member includes an upper beam 401 and a lower beam 402 that are relatively movable, and the upper beam 401 and the lower beam 402 are respectively provided with a clamp 50 (which may include various types, and specifically refer to the related art, and may be an electric clamp or a pneumatic clamp, and is not limited herein) for fixing the frame on which the exposure surface is located.

Optionally, as a possible implementation manner, the beam member 40 in the embodiment of the present application may further include an upper beam adjusting assembly 60, which includes a first driving motor 601, a first lead screw lift 602, and a second lead screw lift 603;

the nut mechanisms of the first lead screw lifter 602 and the second lead screw lifter 603 are both fixedly connected with the upper cross beam 401;

the first driving motor 601 is in transmission connection with the first lead screw lifter 602 and the second lead screw lifter 603 through a synchronous belt, and is used for driving nut mechanisms of the first lead screw lifter 602 and the second lead screw lifter 603 to drive the upper beam 401 to move along a preset linear direction.

Optionally, as a possible implementation manner, the beam component in the embodiment of the present application may further include a lower beam adjusting assembly 70, where the lower beam adjusting assembly 70 includes a second driving motor 701, a third lead screw lift 702, and a fourth lead screw lift 703; the nut mechanisms of the third lead screw lift 702 and the fourth lead screw lift 703 are both fixedly connected with the lower cross beam 402; the second driving motor is in transmission connection with the third lead screw lifter 702 and the fourth lead screw lifter 703 through a synchronous belt, and is used for driving the nut mechanisms of the third lead screw lifter 702 and the fourth lead screw lifter 703 to drive the lower cross beam 402 to move along a preset linear direction.

The equipment in this application can be according to the height of the size automatically regulated upper and lower crossbeam of the screen frame that obtains that detects before carrying out the laser exposure formation of image, and then the position of automatic fixed screen frame, can the screen frame of the multiple size of adaptation, has improved the suitability of direct imaging equipment to different size screen frames.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present application.

Claims (9)

1. A bi-directional reduction assembly, comprising: the device comprises a sensor adapter plate and a scanning moving assembly;

the scanning moving assembly is provided with a horizontal guide rail, a horizontal moving platform and a vertical moving platform; the horizontal moving platform is arranged on the horizontal guide rail and can move along the horizontal guide rail; the sensor adapter plate is fixedly connected to the horizontal moving platform, a vertical guide rail is further arranged on the horizontal moving platform, and the vertical moving platform is arranged on the vertical guide rail and can move along the vertical guide rail;

the sensor adapter plate is fixed on the horizontal moving platform, and a first photoelectric sensor and a second photoelectric sensor which are opposite photoelectric sensors are arranged on the sensor adapter plate;

the light emitter and the light receiver of the first photoelectric sensor are respectively distributed on two sides of a path of horizontal displacement, and when a first limiting sheet fixed on a horizontal reset point blocks a light path between the light emitter and the light receiver, the light receiver corresponding to the first photoelectric sensor is triggered to output a first detection signal;

the illuminator and the light receiver of the second photoelectric sensor are respectively distributed on two sides of a path of vertical displacement, and when a second limiting sheet fixedly connected to the vertical moving platform blocks a light path between the illuminator and the light receiver, the light receiver corresponding to the second photoelectric sensor is triggered to output a second detection signal.

2. The bi-directional reset assembly of claim 1, wherein a third photosensor is further fixedly disposed on the sensor adapter plate on the same side as the first photosensor;

the light emitter and the light receiver of the third photoelectric sensor are respectively distributed on two sides of a path of horizontal displacement, and when the first marker blocks a light path between the light emitter and the light receiver, the corresponding light receiver outputs a third detection signal; the third photosensor is closer to a midpoint of a path of the horizontal direction displacement than the first photosensor.

3. The bi-directional reset assembly of claim 1 or 2, wherein the first photosensor and the second photosensor are disposed on the same side or different sides of the sensor adapter plate.

4. The bidirectional reset assembly of claim 1 or 2, wherein the sensor adapter plate is further provided with a unified output interface for collecting detection signals of the plurality of correlation photoelectric sensors.

5. The bi-directional reset assembly of claim 1 or 2, wherein the first and second photosensors are recessed photo-correlation sensors.

6. A direct imaging apparatus, comprising:

an optical assembly, a controller, and a bi-directional reset assembly of any one of claims 1 to 5; wherein, the first and the second end of the pipe are connected with each other,

the optical assembly is fixed on the vertical moving platform and can move along the horizontal direction and the vertical direction under the driving of the scanning moving assembly;

the optical assembly comprises a plurality of lasers;

the controller is electrically connected with the optical assembly and used for generating a control signal for controlling the laser switch according to the real-time position of each laser so as to selectively expose the pixel points on the photosensitive coating on the exposure surface.

7. The direct imaging apparatus according to claim 6, further comprising: the beam part comprises an upper beam and a lower beam which can move relatively, and clamps for fixing the screen frame where the exposure surface is located are arranged on the upper beam and the lower beam.

8. The direct imaging apparatus according to claim 7, wherein the beam member further comprises an upper beam adjustment assembly comprising a first drive motor, a first lead screw lift, a second lead screw lift;

the nut mechanisms of the first lead screw lifter and the second lead screw lifter are both fixedly connected with the upper cross beam;

the first driving motor is in transmission connection with the first lead screw lifter and the second lead screw lifter through synchronous belts and is used for driving nut mechanisms of the first lead screw lifter and the second lead screw lifter to drive the upper cross beam to move along a preset linear direction.

9. The direct imaging apparatus according to claim 8 or 7, wherein the beam member further comprises a lower beam adjustment assembly including a second drive motor, a third lead screw lift, a fourth lead screw lift;

the nut mechanisms of the third lead screw lifter and the fourth lead screw lifter are both fixedly connected with the lower cross beam;

the second driving motor is in transmission connection with the third lead screw lifter and the fourth lead screw lifter through a synchronous belt and is used for driving nut mechanisms of the third lead screw lifter and the fourth lead screw lifter to drive the lower cross beam to move along a preset linear direction.

Images