Screen printing turning plate device and screen printing equipment

Abstract

The utility model discloses a screen printing plate turnover device and screen printing equipment. The screen printing plate turnover device comprises an alignment platform and two plate body turnover mechanisms. The two plate body turnover mechanisms are arranged on the alignment platform side by side in the left-right direction, each plate body turnover mechanism comprises a lifting frame, a first lifting driver, a plate grabbing assembly and a turnover driver, the lifting frames are movably arranged on the alignment platform in the vertical direction, the first lifting drivers are used for driving the lifting frames to ascend and descend, and the plate grabbing assemblies are used for grabbing plates. The plate grabbing assemblies are rotationally arranged on the corresponding lifting frames, the rotating axes of the plate grabbing assemblies are arranged in the left-right direction, the two plate grabbing assemblies are opposite in the left-right direction and form a plate body containing position, and the turnover drivers are used for driving the corresponding plate grabbing assemblies to rotate. At the moment, the lifting frame is located at the descending position, and the plate replacing operation of production personnel is not affected; in the shutdown state, the lifting frame is also in the descending position, the occupied space of the device is small, and arrangement and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of screen printing, in particular to a screen printing turnover device and a screen printing equipment. Background Art

[0002] In the screen printing process of printed circuit board production, screen printing equipment is required. Usually, both sides of some printed circuit boards need to be screen printed. Therefore, a screen printing turnover device is provided in the corresponding screen printing equipment for turning over the printed circuit board. Some existing screen printing turnover devices include an alignment platform and two plate body turnover mechanisms arranged side by side on the alignment platform. The plate body turnover mechanism has a fixed column, a lifting driver, a plate gripping component and a turnover driver. The fixed column is provided with a lifting slider. The plate gripping component is rotatably connected to the lifting slider. The lifting driver can drive the lifting slider to move. The turnover driver can drive the plate gripping component to rotate. The plate gripping components of the two plate body turnover mechanisms cooperate with each other to grip the opposite ends of the plate body. The lifting driver cooperates with the plate gripping component to drive the printed circuit board to rise to a specified height so that the printed circuit board has enough space to turn over. The turnover driver can drive the plate gripping component to drive the printed circuit board to turn over. The alignment platform can drive the plate body turnover mechanism and the printed circuit board to move horizontally for alignment. Currently, for the above-mentioned screen printing turnover device, due to the relatively high fixed column, the equipment occupies more space in the shutdown state. The fixed column affects machine maintenance, and the fixed column will block the operation of production personnel when changing the plate. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a screen printing turnover device, which occupies less space in the shutdown state and does not affect the operation of production personnel when changing the plate.

[0004] The utility model also provides a screen printing equipment with the above screen printing turnover device.

[0005] The screen printing turnover device according to the first aspect embodiment of the utility model includes an alignment platform and two plate body turnover mechanisms. The two plate body turnover mechanisms are arranged side by side on the left and right of the alignment platform. The plate body turnover mechanism includes a lifting frame, a first lifting driver, a plate gripping component and a turnover driver. The lifting frame is movably arranged vertically on the alignment platform. The first lifting driver is used to drive the lifting frame to lift and lower. The plate gripping component is rotatably arranged on the corresponding lifting frame and the rotation axis is arranged in the left-right direction. The two plate gripping components are opposite to each other left and right and form a plate body accommodating position. The turnover driver is used to drive the corresponding plate gripping component to rotate.

[0006] The screen printing turnover device according to the first aspect embodiment of the present utility model has at least the following beneficial effects: The gripping plate assemblies of the two plate body turnover mechanisms can cooperate to grip the left and right ends of the plate body workpiece. Subsequently, the first lifting driver drives the lifting frame to rise. Then, the turnover driver can drive the gripping plate assembly and the plate body workpiece to turnover. Finally, the lifting frame descends and resets, and the gripping plate assembly can release the plate body workpiece to complete the turnover of the plate body workpiece. At this time, the lifting frame is in the lowered position without affecting the operation of production personnel for changing the plate. When in the stopped state, the lifting frame is also in the lowered position, and the device occupies less space, which is beneficial for sorting and maintenance.

[0007] According to some embodiments of the present utility model, the alignment platform includes an upper base and two side frames. At least one of the side frames is movably arranged on the upper base in the left-right direction. The alignment platform is provided with a side frame driver for driving the two side frames to approach or move away from each other. The two lifting frames are slidably connected to the two side frames in the vertical direction in a one-to-one correspondence.

[0008] According to some embodiments of the present utility model, the gripping plate assembly includes a mounting strip and at least two grippers. The middle part of the mounting strip is rotatably connected to the upper end of the lifting frame. All the grippers are arranged at intervals along the length direction of the mounting strip. The turnover driver is arranged at the upper end of the lifting frame. The output shaft of the turnover driver is in transmission connection with the middle part of the mounting strip.

[0009] According to some embodiments of the present utility model, it further includes a plate edge supporting mechanism. The plate edge supporting mechanism is arranged on the alignment platform. The plate edge supporting mechanism includes a first supporting block and a second supporting block. The first supporting block and the second supporting block are respectively located on the front and rear sides of the gripping plate assembly.

[0010] According to some embodiments of the present utility model, a first supporting surface is arranged on one side of the first supporting block close to the second supporting block. A second supporting surface is arranged on one side of the second supporting block close to the first supporting block. The distance between the first supporting surface and the second supporting surface gradually decreases in the downward direction. The first supporting block and the second supporting block are vertically opposite to the plate body accommodating position.

[0011] According to some embodiments of the present utility model, both the first supporting surface and the second supporting surface are inclined surfaces.

[0012] According to some embodiments of the present utility model, the plate edge supporting mechanism further includes an adjusting driver. The first supporting block and / or the second supporting block is movably arranged on the alignment platform and can approach or move away from each other. The adjusting driver is used for driving the first supporting block and the second supporting block to approach or move away from each other.

[0013] According to some embodiments of the present utility model, at least two first supporting blocks are arranged at intervals in the left-right direction, at least two second supporting blocks are arranged at intervals in the left-right direction, and the first supporting blocks and the second supporting blocks correspond to each other one by one.

[0014] According to some embodiments of the present utility model, the plate edge supporting mechanism further includes a second lifting driver. The first supporting block and the second supporting block are vertically arranged on the alignment platform in a liftable manner, and the second lifting driver is used to drive the first supporting block and the second supporting block to lift.

[0015] The screen printing equipment according to the second aspect embodiment of the present utility model includes the above-mentioned screen printing turning plate device.

[0016] The screen printing equipment according to the second aspect embodiment of the present utility model has at least the following beneficial effects: Due to the adoption of the above-mentioned screen printing turning device, it is convenient for production personnel to change the plate during production and for the equipment to be maintained when the machine is stopped.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a three-dimensional schematic diagram of the screen printing turning plate device in the embodiment of the present utility model when the lifting frame is raised;

[0020] Figure 2 is a three-dimensional schematic diagram of the screen printing turning plate device in the embodiment of the present utility model when the lifting frame is lowered;

[0021] Figure 3 is a side view schematic diagram of the screen printing turning plate device in the embodiment of the present utility model when the lifting frame is raised;

[0022] Figure 4 is a three-dimensional schematic diagram of the side plate and the plate turning mechanism in the embodiment of the present utility model;

[0023] Figure 5 is a three-dimensional schematic diagram of the screen printing turning plate device in the embodiment of the present utility model in another direction.

[0024] Reference Signs:

[0025] Alignment platform 100, upper base 110, side frame 120, side frame driver 130, lower base 140, horizontal movement module 150;

[0026] Plate flipping mechanism 200, lifting frame 210, first lifting driver 220, plate grasping assembly 230, mounting strip 231, gripper 232, flipping driver 240;

[0027] Plate edge supporting mechanism 300, first supporting block 310, first supporting surface 311, second supporting block 320, second supporting surface 321, adjusting driver 330, second lifting driver 340;

[0028] Plate workpiece 400. Detailed implementation manners

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up and down, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] In the description of the present invention, "a plurality of" refers to more than two. If there is a description of the first and the second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0033] The screen printing equipment is a machine for printing text and images, and is the general term for machines or equipment used to produce printed products. Usually, both sides of some plate workpieces 400 need to be screen printed. Therefore, a screen printing turning plate device is provided in the corresponding screen printing equipment for turning over the plate workpieces 400, so that both sides can be screen printed respectively. In some current screen printing turning plate devices of screen printing equipment, a fixed column is used in cooperation with a linear guide rail to guide the vertical movement of the plate grabbing assembly 230, a lifting drive is used to drive the lifting of the plate grabbing assembly 230, and a turning drive 240 is used to drive the plate grabbing assembly 230 to drive the plate workpiece 400 to rotate. For such screen printing turning plate devices, due to the relatively high fixed column, the equipment occupies more space in the shutdown state, the fixed column affects the machine maintenance, and the fixed column will block the plate changing operation of production personnel when changing the plate.

[0034] Referring to Figures 1 to 5 , the screen printing turning plate device of the embodiment of the present invention includes an alignment platform 100 and two plate turning mechanisms 200. The two plate turning mechanisms 200 are arranged side by side left and right on the alignment platform 100. The plate turning mechanism 200 includes a lifting frame 210, a first lifting drive 220, a plate grabbing assembly 230 and a turning drive 240. The lifting frame 210 is movably arranged vertically on the alignment platform 100. The first lifting drive 220 is used to drive the lifting of the lifting frame 210. The plate grabbing assembly 230 is rotatably arranged on the corresponding lifting frame 210 and the rotation axis is arranged in the left and right direction. The two plate grabbing assemblies 230 face each other left and right and form a plate accommodating position. The turning drive 240 is used to drive the corresponding plate grabbing assembly 230 to rotate.

[0035] The plate grabbing assemblies 230 of the two plate turning mechanisms 200 can cooperate to grab the left and right ends of the plate workpiece 400. Then, the first lifting drive 220 drives the lifting frame 210 to rise. After that, the turning drive 240 can drive the plate grabbing assembly 230 and the plate workpiece 400 to turn over. Finally, the lifting frame 210 descends and resets, and the plate grabbing assembly 230 can release the plate workpiece 400 to complete the turning over of the plate workpiece 400. At this time, the lifting frame 210 is in the lowered position and does not affect the plate changing operation of production personnel; in the shutdown state, the lifting frame 210 is also in the lowered position, and the device occupies less space, which is beneficial to sorting and maintenance.

[0036] Specifically, the alignment platform 100 includes an upper pedestal 110, a lower pedestal 140, and a horizontal movement module 150. The upper pedestal 110 is movably connected to the base in the horizontal direction, and the upper pedestal 110 can adjust its horizontal position relative to the lower pedestal 140 through the horizontal movement module 150, cooperating with an external vision module to adjust the positions of the plate workpiece 400 and the two plate flipping mechanisms 200 as a whole, that is, horizontally adjusting the position of the plate workpiece 400, so that the accuracy of this screen printing turning plate device is relatively high. The horizontal movement module 150 can be, for example, two linear drivers perpendicular to each other used in cooperation, so that the upper pedestal 110 can be horizontally movably connected to the lower pedestal 140; the horizontal movement module 150 can also be other structures for two-dimensional plane movement in the prior art.

[0037] In the embodiment, the alignment platform 100 includes an upper pedestal 110 and two side frames 120. The two side frames 120 are movably arranged on the upper pedestal 110 in the left-right direction. The alignment platform 100 is provided with a side frame driver 130 for driving the two side frames 120 to approach or separate from each other. The two lifting frames 210 are respectively slidably connected to the side frames 120 in the vertical direction. When the size of the plate workpiece 400 is relatively large, the two side frames 120 can be driven by the side frame driver 130 to move away from each other, driving the two plate flipping mechanisms 200 to also move away from each other, so that the distance between the two plate gripping assemblies 230 is increased, so as to grip the large-size plate workpiece 400 for turning over; when the size of the plate workpiece 400 is relatively small, the two side frames 120 can be driven by the side frame driver 130 to move closer to each other, driving the two plate flipping mechanisms 200 to approach each other, so that the distance between the two plate gripping assemblies 230 is reduced, in order to grip the small-size plate workpiece 400 to adapt to plate workpieces 400 of different specifications.

[0038] Specifically, both of the two side frames 120 are slidably connected to the upper pedestal 110 in the left-right direction through a slide rail-slider structure, that is, the upper pedestal 110 is provided with slide rails in the left-right direction, and the two side frames 120 are respectively provided with sliders, and the sliders are slidably connected to the slide rails. The side frame driver 130 includes a motor, a lead screw, and two lead screw nuts. The two lead screw nuts are respectively fixed to the two side frames 120. The lead screw is arranged in the left-right direction and is threadedly connected to the lead screw nuts. The motor drives the lead screw to rotate, and drives the two side frames 120 to approach or separate from each other through the lead screw nuts.

[0039] It is conceivable that in other embodiments, a slider may be provided on the upper pedestal 110, and slide rails may be provided on the two side frames 120 respectively along the left and right directions, and the slider may be slidably connected to the slide rails; the side frame 120 may also be movable relative to the upper pedestal 110 along the left and right directions through a guide column and guide sleeve structure, that is, guide columns are provided on the upper pedestal 110 along the left and right directions, and guide sleeves are provided on the side frames 120, and the guide sleeves are sleeved on the guide columns; or the side frame 120 may also be connected to the upper pedestal 110 through roller rolling, and the left and right movement may be achieved through the rolling of the side frame 120 through the rollers; or one side frame 120 may be fixed to the upper pedestal 110, and the other side frame 120 may be slidably connected to the upper pedestal 110, so that the two side frames 120 may be closer to or farther away from each other; the side frame driver 130 may also adopt a structure such as an electric cylinder, an oil cylinder or a linear motor to drive the side frame 120 to move left and right, and technicians in this field may make specific configurations according to actual needs.

[0040] Specifically, the lifting frame 210 is connected to the side frame 120 in a vertical sliding manner through a guide column and guide sleeve structure, and the first lifting driver 220 may include a motor, a synchronous wheel set and a synchronous belt. The motor drives the synchronous belt to move through the synchronous wheel set, and a part of the lifting frame 210 is fixedly connected to the synchronous belt, and the lifting frame 210 is driven to rise and fall through the synchronous belt. It is conceivable that the lifting frame 210 can also be connected to the side frame 120 in a vertically movably manner through a slide rail and slider structure, and the first lifting driver 220 can also be, for example, a cylinder, an electric cylinder or an oil cylinder, etc., to drive the lifting frame 210 to rise and fall, and those skilled in the art can make specific configurations according to actual needs.

[0041] In the embodiment, the gripper assembly 230 includes a mounting bar 231 and four clamps 232. The middle of the mounting bar 231 is rotatably connected to the upper end of the lifting frame 210. All the clamps 232 are arranged at intervals along the length direction of the mounting bar 231. The flip driver 240 is arranged at the upper end of the lifting frame 210. The flip driver 240 is provided with an output shaft, which is transmission-connected to the middle of the mounting bar 231. The above structure can make the gripping of the plate workpiece 400 more stable and improve production safety. Specifically, the clamp 232 is a finger cylinder, and the flip driver 240 is a reduction motor. The rotation angle is relatively accurate and easy to use.

[0042] It is understandable that the number of the clamps 232 on each gripping plate assembly 230 can be other numbers, such as one, two, three or more, and those skilled in the art can reasonably select according to actual needs. In other embodiments, the number of clamps 232 on the two gripping plate assemblies 230 can also be different, and those skilled in the art can reasonably select according to actual needs.

[0043] It is conceivable that the flipping drive 240 can also be of other structures, such as a rotating cylinder or other structures that output rotational power, and the gripper 232 can be of other types of grippers 232, such as a suction cup, etc.; similarly, the gripper plate assembly 230 can also be a mounting plate with multiple suction cups mounted thereon, and the mounting plate is rotatably connected to the lifting frame 210. The gripper plate assembly 230 can adsorb and grab the plate workpiece 400 through the suction cups to drive the plate workpiece 400 to rotate.

[0044] Specifically, the output shaft of the flipping drive 240 can be directly rotatably connected to the mounting bar 231 through a coupling or a connecting shaft, or can be indirectly driven and connected through means such as belt drive and gear drive to drive the mounting bar 231 to rotate.

[0045] Preferably, the gripper plate assembly 230 is located at the upper end of the lifting frame 210. It can be understood that in some other instances, the gripper plate assembly 230 can also be located in the upper part of the lifting frame 210 or at other height positions, and those skilled in the art can reasonably select according to actual needs.

[0046] For some flexible plates, when the gripper plate assemblies 230 of the two plate flipping mechanisms 200 grab the left and right ends of the plate workpiece 400, the front and rear ends of the flexible plate may sag, etc., affecting the alignment accuracy of the vision system for detecting the alignment platform 100 with respect to the plate workpiece 400. Therefore, the following improvements are made:

[0047] In the embodiment, it further includes a plate edge supporting mechanism 300. The plate edge supporting mechanism 300 is arranged on the alignment platform 100. The plate edge supporting mechanism 300 includes a first supporting block 310 and a second supporting block 320. The first supporting block 310 and the second supporting block 320 are respectively located on the front and rear sides of the gripper plate assembly 230. When the lifting frame 210 is in the lowered position, the front and rear ends of the plate workpiece 400 are respectively supported by the first supporting block 310 and the second supporting block 320. At this time, the plate workpiece 400 is basically in a flat state, reducing the sagging of the front and rear ends of the plate workpiece 400 and making the alignment accuracy of the plate workpiece 400 better.

[0048] In the embodiment, a first supporting surface 311 is provided on the side of the first supporting block 310 close to the second supporting block 320, and a second supporting surface 321 is provided on the side of the second supporting block 320 close to the first supporting block 310. The distance between the first supporting surface 311 and the second supporting surface 321 gradually decreases in the downward direction, and the first supporting block 310 and the second supporting block 320 are vertically opposite to the plate accommodating position. With the above structure, when the plate workpiece 400 is a flexible plate, the front and rear ends of the plate workpiece 400 can be better supported, so that the front and rear ends of the plate workpiece 400 respectively move down along the first supporting surface 311 and the second supporting surface 321 to appropriate positions, making the plate workpiece 400 flat.

[0049] In an embodiment, both the first support surface 311 and the second support surface 321 are inclined surfaces, which have a better supporting effect on the front and rear edges of the plate workpiece 400. It can be imagined that the first support surface 311 and the second support surface 321 can also be surfaces with other shapes, such as arc-shaped surfaces, etc. The plate workpiece 400 is placed in the plate accommodation position.

[0050] Specifically, the first support block 310 is a trapezoidal plate body. The first support block 310 is arranged vertically, and the first support surface 311 is located on the upper side surface of the first support block 310, which is relatively convenient for supporting the edge of the vertically lifted plate workpiece 400. Specifically, the second support block 320 is a trapezoidal plate body. The second support block 320 is arranged vertically, and the second support surface 321 is located on the upper side surface of the second support block 320, which is relatively convenient for supporting the edge of the vertically lifted plate workpiece 400. It can be understood that the first support block 310 can also be of other shapes. For example, the first support block 310 is a rectangular block, a trapezoidal block or a parallelogram block, etc. Similarly, the second support block 320 can also be of other shapes. For example, the second support block 320 is a rectangular block, a trapezoidal block or a parallelogram block, etc. The inclination angle of the first support surface 311 can be reasonably selected according to the needs of those skilled in the art. For example, it can be 15°, 30°, 45°, 60° or 75°, etc.; similarly, the inclination angle of the second support surface 321 can be reasonably selected according to the needs of those skilled in the art. For example, it can be 15°, 30°, 45°, 60° or 75°, etc.

[0051] In an embodiment, the plate edge supporting mechanism 300 further includes an adjustment drive 330. The first supporting block 310 and the second supporting block 320 are movably arranged on the alignment platform 100 and can approach or move away from each other. The adjustment drive 330 is used to drive the first supporting block 310 and the second supporting block 320 to approach or move away from each other. When the size of the plate workpiece 400 is small, the adjustment drive 330 can be used to drive the first supporting block 310 and the second supporting block 320 to approach each other, so as to support the front and rear edges of the plate workpiece 400 with a small size. When the front and rear dimensions of the plate workpiece 400 are large, the adjustment drive 330 can be used to drive the first supporting block 310 and the second supporting block 320 to move away from each other, so as to support the front and rear edges of the plate workpiece 400 with a large size. The above structure enables the plate edge supporting mechanism 300 to be applicable to plate workpieces 400 of different sizes, and the universality of the plate edge supporting mechanism 300 is relatively good. It can be imagined that it is also possible that the first supporting block 310 is fixed relative to the alignment platform 100, the second supporting block 320 is movable relative to the alignment platform 100, and the adjustment drive 330 is used to drive the first supporting block 310 and the second supporting block 320 to approach or move away from each other; or it is also possible that the first supporting block 310 is movable relative to the alignment platform 100, the second supporting block 320 is fixed relative to the alignment platform 100, and the adjustment drive 330 is used to drive the first supporting block 310 and the second supporting block 320 to approach or move away from each other. Those skilled in the art can make a choice according to actual needs.

[0052] In an embodiment, the plate edge supporting mechanism 300 further includes a second lifting drive 340. The first supporting block 310 and the second supporting block 320 are arranged on the alignment platform 100 so as to be liftable in the vertical direction. The second lifting drive 340 is used to drive the first supporting block 310 and the second supporting block 320 to lift. By setting the second lifting drive 340 to drive the first supporting block 310 and the second supporting block 320 to lift, the edges of the plate workpiece 400 can be better supported, the problem of edge sag of the plate workpiece 400 can be further reduced, the plate workpiece 400 can be placed as flat as possible, and the alignment accuracy of the screen printing turning plate device can be improved.

[0053] In an embodiment, two first supporting blocks 310 are arranged at intervals in the left-right direction, and two second supporting blocks 320 are arranged at intervals in the left-right direction. The first supporting blocks 310 and the second supporting blocks 320 correspond to each other one by one. By arranging two or more first supporting blocks 310 and second supporting blocks 320 at intervals, the edges of the plate workpiece 400 can be supported more stably, and the plate workpiece 400 can be placed flat better.

[0054] It can be understood that the number of the first supporting blocks 310 can also be one, three, four or more. Those skilled in the art can specifically configure according to actual needs as long as the edges of the plate workpiece 400 can be supported. Similarly, the number of the second supporting blocks 320 can also be one, three, four or more. Those skilled in the art can specifically configure according to actual needs as long as the edges of the plate workpiece 400 can be supported.

[0055] It can be understood that in some embodiments, a certain number of the first supporting blocks 310 are arranged at intervals in the left - right direction, and a certain number of the second supporting blocks 320 are arranged at intervals in the left - right direction. The number of the first supporting blocks 310 and the second supporting blocks 320 is usually the same, but can also be different, and can be reasonably selected according to the actual situation.

[0056] In an embodiment, the plate - edge supporting mechanism 300 includes four second lifting drivers 340. Two first supporting blocks 310 are connected to two of the second lifting drivers 340 in one - to - one correspondence, and two second supporting blocks 320 are connected to the other two second lifting drivers 340 in one - to - one correspondence. The above - mentioned structure enables each of the first supporting blocks 310 and the second supporting blocks 320 to lift independently, further improving the supporting effect on the edges of the plate workpiece 400 and having better use flexibility.

[0057] Specifically, the second lifting driver 340 is slidably connected to the alignment platform 100 in the front - rear direction through a slide - rail and slider structure. The adjusting driver 330 is a motor, a lead screw and a lead - screw nut. The lead - screw nut is fixed to the second lifting driver 340. The lead screw is arranged in the front - rear direction, and the motor can drive the lead screw to rotate. The lead screw is in threaded cooperation with the lead - screw nut to drive the second lifting driver 340 and the first supporting block 310 or the second supporting block 320 thereon to move back and forth, so that the first supporting block 310 and the second supporting block 320 can approach or move away from each other, that is, the first supporting block 310 and the second supporting block 320 are slidably arranged on the alignment platform 100 at intervals through the second lifting driver 340. The second lifting driver 340 is a cylinder, and the piston rod of the cylinder is connected to the first supporting block 310 or the second supporting block 320.

[0058] It is conceivable that in some other embodiments, the adjustment driver 330 can also be an electric cylinder, an oil cylinder or a linear motor, etc., to drive the first support block 310 and the second support block 320 to move back and forth. The second lifting driver 340 can also be an electric cylinder, an oil cylinder or a linear motor, etc., to drive the first support block 310 or the second support block 320 to lift. It is conceivable that it can also be a second lifting driver 340 cooperating with the tray to drive all the first support blocks 310 and the second support blocks 320 to lift, and the first support blocks 310 and the second support blocks 320 are slidably connected to the tray to be able to approach or move away from each other. At this time, the adjustment driver 330 can be arranged on the tray to drive the first support block 310 and the second support block 320 to approach or move away from each other; or one second lifting driver 340 drives all the first support blocks 310 to lift, and another second lifting driver 340 drives all the second support blocks 320 to lift. At this time, the adjustment driver 330 can drive the two second lifting drivers 340 to approach or move away from each other, so as to drive the first support block 310 and the second support block 320 on them to approach or move away from each other respectively.

[0059] It is conceivable that the plate edge supporting mechanism 300 can also be other structures. For example, the plate edge supporting mechanism 300 includes two three-axis manipulators and two supporting bars arranged at intervals front and back. The supporting bars extend in the left-right direction. The two supporting bars can respectively support the front and back sides of the plate workpiece, so as to reduce the sagging of the front and back side edges of the plate workpiece. The two three-axis manipulators respectively drive the two supporting bars to approach or move away from each other, and drive the two supporting bars to lift.

[0060] The present utility model also discloses a silk screen printing device, which adopts the above-mentioned silk screen printing turning device. Due to adopting the above-mentioned silk screen printing turning device, it is convenient for production personnel to change the plate during production, and it is convenient for the equipment to be maintained during shutdown.

[0061] Furthermore, a vision module is further arranged above the silk screen printing turning device of the silk screen printing device, for detecting the alignment effect of the plate workpiece 400 passing through the alignment platform 100. The vision module is usually a camera, etc.

[0062] Specifically, the above-mentioned silk screen printing device is applicable to double-sided silk screen printing of the plate workpiece 400, and is particularly applicable to double-sided silk screen printing of flexible plates. It can be understood that the above-mentioned silk screen printing device can also be applicable to double-sided silk screen printing of rigid plates, and is applicable to single-sided silk screen printing of the plate workpiece 400, etc., which is not limited herein. The plate workpiece is preferably a circuit board, etc., and of course it can also be other types of plates.

[0063] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0064] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A screen printing flipping device, characterized in that: include: Alignment platform (100); Two plate flipping mechanisms (200) are arranged side by side on the alignment platform (100) on the left and right sides. The plate flipping mechanism (200) comprises a lifting frame (210), a first lifting driver (220), a grab plate assembly (230) and a flipping driver (240). The lifting frame (210) is arranged on the alignment platform (100) in a vertically movable manner. The first lifting driver (220) is used to drive the lifting frame (210) to move up and down. The grab plate assembly (230) is rotatably arranged on the corresponding lifting frame (210) and the rotation axis is arranged in the left and right direction. The two grab plate assemblies (230) are opposite to each other on the left and right sides and form a plate accommodating position. The flipping driver (240) is used to drive the corresponding grab plate assembly (230) to rotate.

2. The screen printing turnover device according to claim 1, characterized in that: The alignment platform (100) comprises an upper platform (110) and two side frames (120), at least one of the side frames (120) being movably arranged on the upper platform (110) in the left-right direction, the alignment platform (100) being provided with a side frame driver (130), the side frame driver (130) being used for driving the two side frames (120) to move closer to or away from each other, and the two lifting frames (210) being vertically slidably connected to the two side frames (120) in a one-to-one correspondence.

3. The screen printing turnover device according to claim 1, characterized in that: The grab plate assembly (230) comprises a mounting bar (231) and at least two clamps (232); the middle portion of the mounting bar (231) is rotatably connected to the upper end of the lifting frame (210); all the clamps (232) are arranged at intervals along the length direction of the mounting bar (231); the flip driver (240) is arranged at the upper end of the lifting frame (210); the flip driver (240) is provided with an output shaft, and the output shaft is drivingly connected to the middle portion of the mounting bar (231).

4. The screen printing turnover device according to claim 1, characterized in that: It also includes a board edge supporting mechanism (300), wherein the board edge supporting mechanism (300) is arranged on the alignment platform (100), and the board edge supporting mechanism (300) includes a first supporting block (310) and a second supporting block (320), wherein the first supporting block (310) and the second supporting block (320) are respectively located at the front and rear sides of the grab plate assembly (230).

5. The screen printing turnover device according to claim 4, characterized in that: A first supporting surface (311) is provided on one side of the first supporting block (310) close to the second supporting block (320), and a second supporting surface (321) is provided on one side of the second supporting block (320) close to the first supporting block (310). The distance between the first supporting surface (311) and the second supporting surface (321) gradually decreases in a downward direction, and the first supporting block (310) and the second supporting block (320) are vertically opposite to the plate accommodating position.

6. The screen printing turnover device according to claim 5, characterized in that: The first supporting surface (311) and the second supporting surface (321) are both inclined surfaces.

7. The screen printing turnover device according to claim 4, characterized in that: The board edge supporting mechanism (300) further comprises an adjusting driver (330); the first supporting block (310) and / or the second supporting block (320) are movably arranged on the alignment platform (100) and can move closer to or farther away from each other; the adjusting driver (330) is used to drive the first supporting block (310) and the second supporting block (320) to move closer to or farther away from each other.

8. The screen printing turnover device according to claim 4, characterized in that: At least two of the first supporting blocks (310) are arranged at intervals along the left-right direction, and at least two of the second supporting blocks (320) are arranged at intervals along the left-right direction. The first supporting blocks (310) correspond to the second supporting blocks (320) one by one.

9. The screen printing turnover device according to claim 4, characterized in that: The board edge supporting mechanism (300) further comprises a second lifting drive (340); the first supporting block (310) and the second supporting block (320) are vertically liftably arranged on the alignment platform (100); and the second lifting drive (340) is used for driving the first supporting block (310) and the second supporting block (320) to lift and lower.

10. A screen printing device, characterized in that: It comprises the screen printing flip plate device as described in any one of claims 1 to 9.

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