CN217835065U - Screen frame positioning component and direct plate-making equipment - Google Patents

Abstract

The embodiment of the application provides a screen frame positioning component and direct plate-making equipment for the mechanical self-adaptation of realizing not unidimensional screen frame is fixed, need not artifical support fixed screen frame among the silk screen printing plate-making process, has improved the security of silk screen plate-making equipment operation and to the suitability of not unidimensional, thickness screen frame. The concrete structure can include: the first upright post, the second upright post, the adjusting guide rail, the sliding block and at least two hollow positioning sleeves are arranged in parallel; the first upright post is fixedly connected with the sliding block, and the sliding block can drive the first upright post to move towards the second upright post with a fixed position along the adjusting guide rail; at least one positioning pin is arranged in the vertical direction of the first upright post and the second upright post; the hollow positioning sleeve is fixedly arranged on the frame of two opposite sides of the quadrangular screen frame; the distance between the first stand column and the second stand column is adjusted through the adjusting slide block, so that the positioning pins on the first stand column and the second stand column are inserted into the hollow positioning sleeves on the quadrilateral net frame to tightly support and fix the quadrilateral net frame.

Description

Screen frame positioning component and direct plate-making equipment

Technical Field

The application relates to the technical field of screen printing, in particular to a screen frame positioning component and direct plate making equipment.

Background

Screen printing is called screen printing for short, also called stencil printing, silk screen and silk lacquer printing, and is one of the most widely used stencil printing. Before screen printing, a printing plate required for screen printing needs to be manufactured. At present, a computer-to-plate technology (for example, the application number is 201310084860.3, wherein a laser direct plate-making device is used for a flat screen printing plate) appears in the field of screen printing, and the photosensitive coating on an exposure surface is scanned by emergent light emitted by a light source assembly to be exposed, and the exposed photosensitive coating is developed to generate a required developed image.

Direct plate-making equipment among the correlation technique is carrying out the screen printing plate-making in-process, needs the manual work to place the screen frame along emergent light vertical direction to the fixed centre gripping of clamping components with the screen frame is supported to the manual work. If the operation of the manual net frame supporting equipment is not standard, the clamping assembly can clamp and hurt people. In view of the above, there is a need for improvement of the prior art direct plate making apparatus to improve the safety of the operation thereof.

Disclosure of Invention

The embodiment of the application provides a screen frame positioning component and direct plate-making equipment, which are used for realizing the mechanical self-adaptive fixation of screen frames with different sizes, and the screen frame is not required to be manually supported and fixed in the screen printing and plate-making process, so that the operation safety of the screen plate-making equipment and the adaptability of the screen frames with different sizes and thicknesses are improved.

A first aspect of an embodiment of the present application provides a frame positioning component, which may include:

the device comprises a first upright post, a second upright post, an adjusting guide rail, a sliding block and at least two hollow positioning sleeves; wherein,

the first upright post and the second upright post are arranged in parallel, the first upright post is fixedly connected with the sliding block, and the sliding block can drive the first upright post to move towards the second upright post with a fixed position along the adjusting guide rail;

at least one positioning pin is arranged in the vertical direction of the first upright post and the second upright post; the at least two hollow positioning sleeves are fixedly arranged on the frames of the two opposite sides of the quadrilateral net frame;

when the quadrilateral net frame is placed between the first upright post and the second upright post, the distance between the first upright post and the second upright post is adjusted by adjusting the sliding block, so that the positioning pins on the first upright post and the second upright post are inserted into the hollow positioning sleeves on the quadrilateral net frame to tightly abut against and fix the quadrilateral net frame.

Optionally, as a possible implementation manner, the frame positioning component in the embodiment of the present application may further include a positioning pin adjusting assembly, where the positioning pin adjusting assembly includes: the vertical plate is provided with two baffle plates on two sides along the thickness direction, two cylinders are arranged between the two baffle plates in parallel, a movable positioning block is sleeved between the two cylinders, and the positioning block is provided with the positioning pin.

Optionally, as a possible implementation manner, in the screen frame positioning component in the embodiment of the present application, springs are further sleeved on the two cylinders on the same side of the positioning block; and a threaded through hole is formed in the baffle on the other side of the positioning block.

Optionally, as a possible implementation manner, in the screen frame positioning component in the embodiment of the present application, the positioning pin is cylindrical, and the hollow positioning sleeve on the quadrangular screen frame is hollow cylindrical.

Optionally, as a possible implementation manner, in the frame positioning component in the embodiment of the present application, the end of the positioning pin is a spherical body.

Optionally, as a possible implementation manner, in the frame positioning component in the embodiment of the present application, an extension direction of the positioning pin is parallel to a linear direction in which the adjustment guide rail is located.

Optionally, as a possible implementation manner, the frame positioning component in the embodiment of the present application may further include: the reinforcing columns are connected with the first upright columns and the sliding blocks simultaneously, and the first upright columns, the sliding blocks and the reinforcing columns are distributed in a triangular mode.

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

an optical assembly, a scanning movement assembly, a beam member, a controller, and a frame positioning member as in any one of the possible embodiments of the first aspect and the first aspect; wherein,

the scanning moving component is used for driving the optical component to move on a plane parallel to the exposure surface on the quadrilateral screen frame;

the optical assembly comprises a plurality of lasers;

the beam part comprises an upper beam and a lower beam, and the upper beam and/or the lower beam are/is provided with a clamp for clamping the quadrangular screen frame;

the controller is electrically connected with the optical assembly and the control switch of the clamp, controls the clamp to clamp the quadrilateral screen frame after the screen frame positioning part fixes the quadrilateral screen frame, and generates a control signal for controlling the switch of the laser according to the real-time position of each laser in the moving process of the optical assembly so as to selectively expose the pixel points on the photosensitive coating on the exposure surface.

Optionally, as a possible implementation manner, in the direct plate making apparatus in the embodiment of the present application, the scanning moving assembly includes: a transverse guide rail parallel to the adjusting guide rail, a transverse moving table and an object stage;

the transverse moving platform is arranged on the transverse guide rail and can move along the transverse guide rail, and a longitudinal guide rail is arranged on the transverse moving platform;

the object stage is arranged on the longitudinal guide rail and can drive the optical assembly arranged on the object stage to move along the longitudinal guide rail.

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

in this application embodiment, the rigidity of second reference column only needs the cavity position sleeve on the frame of screen frame to match with the locating pin on the second reference column and can realize the screen frame location. When the quadrilateral net frame is placed between the first stand column and the second stand column, the distance between the first stand column and the second stand column is adjusted through the adjusting slide block, so that the plurality of positioning pins on the first stand column and the second stand column are in clearance fit with the plurality of hollow positioning sleeves on the quadrilateral net frame, and the quadrilateral net frame is tightly fixed in a supporting manner. Therefore, the screen frame with different sizes is mechanically and adaptively fixed, the screen frame is not required to be manually supported and fixed in the screen printing and plate making process, and the operation safety of screen printing and plate making equipment is improved.

Secondly, be provided with locating pin adjusting part in the screen frame locating part, when the hollow position sleeve of installing on the screen frame when the position variation of the different degree of screen frame thickness direction of position, can be along with the frame thickness adjustment locating pin's of screen frame position for the locating pin can the adaptation with the position of hollow position sleeve, has improved the suitability of silk screen plate-making equipment to different thickness screen frames.

Drawings

Fig. 1 is a schematic view of a possible structure of a frame positioning member in an embodiment of the present application;

FIG. 2 is a schematic structural view of an assembly body composed of a net frame positioning component and a net frame in the embodiment of the present application;

fig. 3 is a schematic top view of one possible arrangement of a locating pin adjustment assembly in a frame locating component in an embodiment of the present application;

FIG. 4 is a schematic side view of one possible configuration of a locating pin adjustment assembly in a frame locating component of an embodiment of the present application;

fig. 5 is a schematic view of an embodiment of the direct plate-making apparatus in the 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 obtained by a person of ordinary skill in the art based on the embodiments in the present application 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 implicitly indicating 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, the meaning of "a plurality" is 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 the case may be.

For the sake of easy understanding, the following describes a specific structure in an embodiment of the present application, and referring to fig. 1 to fig. 2, an embodiment of a frame positioning component in an embodiment of the present application may include: the first upright post 10, the second upright post 20, the adjusting guide rail 30, the sliding block 40 and at least two hollow positioning sleeves 501. The first upright column 10 and the second upright column 20 are arranged in parallel, the first upright column 10 is fixedly connected with the sliding block 40, and the sliding block 40 can drive the first upright column 10 to move towards the second upright column 20 with a fixed position along the adjusting guide rail 30, so that the distance between the first upright column 10 and the second upright column 20 is adjusted.

At least one positioning pin 502 is arranged in the vertical direction of the first upright post 10 and the second upright post 20; at least two hollow positioning sleeves 501 are fixedly arranged on the frames of two opposite sides of the quadrilateral net frame A.

As shown in fig. 2, when the quadrilateral frame a is placed between the first upright post 10 and the second upright post 20, the distance between the first upright post 10 and the second upright post 20 is adjusted by the adjusting slide block 40, so that the positioning pins 502 on the first upright post 10 and the second upright post 20 are inserted into the hollow positioning sleeves 501 on the quadrilateral frame a to form clearance fit, and the quadrilateral frame a is fixed based on the clearance fit of the plurality of sets of positioning pins and the hollow positioning sleeves.

It should be noted that the positioning pin in the embodiment of the present application may have any cylindrical structure, such as a hexagonal prism, an octagonal prism, etc., and is preferably a cylinder. Preferably, the extension direction of the positioning pin is parallel to the linear direction of the adjusting guide rail. Preferably, the quadrilateral frame in the embodiment of the present application is a rectangular frame, and may also be a parallelogram frame or a rhombus frame, and the specific shape is not limited.

Alternatively, as a possible implementation manner, in order to prevent abrasion, the end of the positioning pin in the present application may be provided with a spherical body, the spherical body may be an incomplete sphere, such as a hemisphere, a two-thirds sphere, and the like, and the diameter of the spherical body may be greater than or equal to the diameter of the cylindrical portion to which the cylindrical positioning pin is connected, and is not limited herein. Alternatively, as a possible embodiment, the place where the spherical body contacts with the frame surface may be cut into a plane.

The applicant has noticed that the first upright post needs to be frequently abutted against the net frame, and in order to prevent the first upright post from inclining in the abutting process, the first upright post 10 needs to be reinforced so as to improve the structural stability. Optionally, as a possible embodiment, as shown in fig. 1 or 2, the frame positioning component in the present application further includes a reinforcing column 101 that connects the first vertical column and the slider at the same time, and the first vertical column 10, the slider 20 and the reinforcing column 101 are distributed in a triangular shape.

It should be noted that each frame of the screen frame a shown in fig. 2 only exemplarily shows 1 hollow positioning sleeve 502, in practical application, each frame of the screen frame a may be provided with a plurality of hollow positioning sleeves 502, and the corresponding first upright columns 10 are provided with the same number of positioning pins, and the specific number may be set according to requirements, and is not limited herein.

As can be seen from the above disclosure, in the screen frame positioning component in the embodiment of the present application, the position of the second positioning column is fixed, and the positioning of the screen frame can be realized only by matching the hollow positioning sleeve on the frame of the screen frame with the positioning pin on the second positioning column. When the quadrilateral net frame is placed between the first stand column and the second stand column, the distance between the first stand column and the second stand column is adjusted through the adjusting slide block, so that the plurality of positioning pins on the first stand column and the second stand column are in clearance fit with the plurality of hollow positioning sleeves on the quadrilateral net frame, and the quadrilateral net frame is tightly supported and fixed. Therefore, the screen frame with different sizes is mechanically positioned and fixed, the screen frame is not manually supported and fixed in the screen printing and plate making process, and the operation safety of the screen printing and plate making equipment is improved.

On the basis of the embodiments shown in fig. 1 and fig. 2, the applicant noticed that the frame thickness of the screen frame used in the actual screen printing plate making process may be different, which in turn causes the position of the hollow positioning sleeve (usually installed centrally in the thickness direction of the screen frame) installed on the frame of the screen frame to be varied to different degrees in the thickness direction of the screen frame, so that the positioning pin cannot be inserted into the positioning sleeve. To this end, as shown in fig. 3 and 4, as a possible implementation manner, the frame positioning component in the embodiment of the present application may further include a positioning pin adjusting assembly 60. The locating pin adjustment assembly 60 may include: two baffle plates 602 are arranged on two sides of the vertical plate 601 along the thickness direction, two cylinders 603 are arranged between the two baffle plates 602 in parallel, a positioning block 604 capable of moving along the cylinder 603 is sleeved between the two cylinders 603, and a positioning pin 502 (which can be integrally formed or connected through a thread, and is not limited specifically) is mounted on the positioning block 604.

Optionally, as a possible embodiment, as shown in fig. 3, a spring 606 is further sleeved on the same side of the positioning block of the two cylinders 603, when the spring 606 is normally extended, the positioning block 604 can be abutted to an edge of a baffle adjacent to the other side of the positioning block, the baffle is provided with a threaded through hole 605, and by adjusting a length of a screw penetrating through the threaded through hole 605 and extending into the baffle, the positioning block 604 can be pushed and a length of the spring 606 can be compressed, so that the relative position of the positioning block 604 on the two cylinders 603 can be freely adjusted.

On the basis of the foregoing example, the present application further provides a direct plate-making apparatus, as shown in fig. 5, as a possible implementation manner, the direct plate-making apparatus in the example of the present application may include:

an optical assembly 70, a scanning movement assembly, a beam member, a controller (not shown) and a frame positioning member as shown in any one of the embodiments of fig. 1 to 4; wherein, the scanning moving component is used to drive the optical component 70 to move on a plane parallel to the exposure surface on the quadrilateral frame.

Alternatively, as a possible implementation, as shown in fig. 5, the scan moving assembly may include: a cross rail 801, a cross travel table 802, and a stage 803. The transverse moving platform 802 is installed on the transverse guide rail 801 and can move along the transverse guide rail 801, and a longitudinal guide rail 804 is arranged on the transverse moving platform 802; stage 803 is mounted on longitudinal rail 804 and can move optical assembly 70 mounted thereon along longitudinal rail 804. Wherein the optical assembly 70 comprises a plurality of lasers, preferably, the lasers in the optical assembly 70 are distributed along a straight line.

The beam part comprises an upper beam 901 and a lower beam 902, and a clamp 903 for clamping the quadrangular screen frame is arranged on the upper beam 901 and/or the lower beam 902. The clamp 903 may drive the piston rod to continuously abut against the quadrilateral frame along the vertical direction of the exposure surface in a working state, and the specific structure thereof may refer to the prior art and is not described herein. It should be noted that the clamp 903 may be driven by an air cylinder or an electric driver, and may be specifically set according to actual requirements, which is not limited herein.

The controller is electrically connected to the optical assembly 70 and the control switches of the jig 903. After the exposure surface is fixed by the frame positioning part, the controller controls the clamp to clamp the quadrilateral frame, and in the moving process of the optical assembly 70, a control signal for controlling the on-off of the laser is generated 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.

The imaging process of the direct plate making device in the application is as follows: and rasterizing the image to be imaged on the exposure surface of the workpiece to be processed to obtain the position information of the laser exposure point on the exposure surface. Firstly, fixing the quadrilateral screen frame by using a screen frame positioning component, and then controlling the clamp to clamp the quadrilateral screen frame by using the controller. Then in the process of moving the laser on the optical component (for example, firstly scanning a line along the transverse guide rail, then adjusting the vertical position of the laser along the longitudinal guide rail, continuously scanning the next line along the transverse guide rail, and circularly scanning in the way until the scanning of all pixel lines is completed), detecting the real-time position of the laser on the laser array, and judging whether the position where the laser can be exposed is consistent with the position of a laser exposure point; if the pixel rows are consistent with each other, the corresponding laser can be started to expose until the selective exposure of all the pixel rows on the exposure surface of the whole quadrilateral frame is completed, and then the single plate making is completed.

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

As can be seen from the above disclosure, in the direct plate-making apparatus in the embodiment of the present application, the position of the second positioning column is fixed, and the positioning of the screen frame can be achieved only by matching the hollow positioning sleeve on the frame of the screen frame with the positioning pin on the second positioning column. When the quadrilateral net frame is placed between the first stand column and the second stand column, the distance between the first stand column and the second stand column is adjusted through the adjusting slide block, so that the plurality of positioning pins on the first stand column and the second stand column are in clearance fit with the plurality of hollow positioning sleeves on the quadrilateral net frame, and the quadrilateral net frame is tightly supported and fixed. Therefore, the screen frame with different sizes is mechanically positioned and fixed, the screen frame is not manually supported and fixed in the screen printing and plate making process, and the operation safety of the screen printing and plate making equipment is improved.

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 frame positioning element, comprising: the device comprises a first upright post, a second upright post, an adjusting guide rail, a sliding block and at least two hollow positioning sleeves; wherein,

the first upright post and the second upright post are arranged in parallel, the first upright post is fixedly connected with the sliding block, and the sliding block can drive the first upright post to move towards the second upright post with a fixed position along the adjusting guide rail;

at least one positioning pin is arranged in the vertical direction of the first upright post and the second upright post; the at least two hollow positioning sleeves are fixedly arranged on the frames of the two opposite sides of the quadrangular screen frame;

when the quadrilateral net frame is placed between the first upright post and the second upright post, the distance between the first upright post and the second upright post is adjusted by adjusting the sliding block, so that the positioning pins on the first upright post and the second upright post are inserted into the hollow positioning sleeves on the quadrilateral net frame to tightly abut against and fix the quadrilateral net frame.

2. The frame positioning member of claim 1, further comprising a locating pin adjustment assembly, the locating pin adjustment assembly comprising: the vertical plate is provided with two baffle plates on two sides along the thickness direction, two cylinders are arranged between the two baffle plates in parallel, a movable positioning block is sleeved between the two cylinders, and the positioning block is provided with the positioning pin.

3. The frame positioning component of claim 2, wherein the two cylinders are further sleeved with springs on the same side of the positioning block; and a threaded through hole is formed in the baffle on the other side of the positioning block.

4. The frame positioning member according to any one of claims 1 to 3, wherein the positioning pin is cylindrical, and the hollow positioning sleeve on the quadrangular frame is hollow cylindrical.

5. The frame positioning member according to claim 4, wherein the distal end of the positioning pin is a spherical body.

6. The frame positioning member according to any one of claims 1 to 3, wherein the extension direction of the positioning pin is parallel to the linear direction of the adjustment rail.

7. The frame positioning component of any one of claims 1 to 3, further comprising a reinforcing post connecting the first upright and the slider at the same time, wherein the first upright, the slider and the reinforcing post are distributed in a triangular shape.

8. A direct plate making apparatus, comprising:

an optical assembly, a scanning movement assembly, a cross-beam assembly, a controller and a frame positioning assembly as claimed in any one of claims 1 to 7; wherein,

the scanning moving component is used for driving the optical component to move on a plane parallel to an exposure surface on the quadrilateral screen frame;

the optical assembly comprises a plurality of lasers;

the beam part comprises an upper beam and a lower beam, and the upper beam and/or the lower beam are/is provided with a clamp for clamping the quadrilateral screen frame;

the controller is electrically connected with the optical assembly and the control switch of the clamp, controls the clamp to clamp the quadrilateral screen frame after the screen frame positioning part fixes the quadrilateral screen frame, and generates a control signal for controlling the switch of the laser according to the real-time position of each laser in the moving process of the optical assembly so as to selectively expose the pixel points on the photosensitive coating on the exposure surface.

9. The direct-to-plate apparatus according to claim 8, wherein the scanning movement assembly includes: a transverse guide rail parallel to the adjusting guide rail, a transverse moving table and an object stage;

the transverse moving platform is arranged on the transverse guide rail and can move along the transverse guide rail, and a longitudinal guide rail is arranged on the transverse moving platform;

the objective table is arranged on the longitudinal guide rail and can drive the optical assembly arranged on the objective table to move along the longitudinal guide rail.

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