阅读说明：本技术 印刷台板、真空丝印机 (Printing platen and vacuum screen printing machine ) 是由 刘茂林 夏国祥 于 2020-07-07 设计创作，主要内容包括：本发明涉及一种印刷台板及一种真空丝印机。该印刷台板用于放置电路板,其包括用于支撑所述电路板的面板,所述面板的顶面设置有至少三个的第一定位件,所述至少三个的第一定位件确定一个水平面,所述至少三个的第一定位件用于所述电路板的定位,所述面板的顶面还设置有至少两个的具有导电功能的电极点,所述电极点可与所述电路板电连接。该真空丝印机其包括机体、设置在所述机体内的上述的印刷台板、以及与所述电极点电性连接的控制器。本发明所述的印刷台板及具有该印刷台板的真空丝印机能提高真空丝印机的自动化程度。(The invention relates to a printing platen and a vacuum screen printing machine. The printed bedplate is used for placing a circuit board and comprises a panel for supporting the circuit board, at least three first positioning pieces are arranged on the top surface of the panel, a horizontal plane is determined by the at least three first positioning pieces, the at least three first positioning pieces are used for positioning the circuit board, at least two electrode points with a conductive function are further arranged on the top surface of the panel, and the electrode points can be electrically connected with the circuit board. The vacuum screen printing machine comprises a machine body, the printing bedplate arranged in the machine body and a controller electrically connected with the electrode points. The printing bedplate and the vacuum screen printing machine with the printing bedplate can improve the automation degree of the vacuum screen printing machine.)

1. A printing platen for holding a circuit board, comprising:

it is including being used for supporting panel (21) of circuit board (50), the top surface of panel (21) is provided with at least three first locating piece (22), a horizontal plane is confirmed in at least three first locating piece (22), at least three first locating piece (22) are used for the location of circuit board (50), the top surface of panel (21) still is provided with at least two electrode point (23) that have electrically conductive function, electrode point (23) can with circuit board (50) electricity is connected.

2. The printing platen (20) of claim 1, wherein: the straight line determined by the two electrode points (23) intersects the length and width of the circuit board (50) respectively.

3. A printing platen (20) according to claim 2, wherein: the two electrode points (23) are respectively arranged in two areas of the panel (21) corresponding to the opposite corners of the circuit board (50).

4. A printing platen (20) according to claim 3, wherein: the top surface of panel (21) is provided with four electrode points (23), four electrode points (23) set up respectively panel (21) correspond in four regions of circuit board (50) four corners department.

5. The printing platen (20) of claim 4, wherein: the top surface of panel (21) is provided with four first locating piece (22), four first locating piece (22) set up respectively panel (21) correspond in four regions of circuit board (50) four corners department.

6. A printing platen (20) according to any one of claims 1 to 5, wherein: one first positioning piece (22) is arranged on one side of each electrode point (23), and the perpendicular distance between the center of the electrode point (23) and the central line of the arranged first positioning piece (22) is less than 5 cm.

7. A printing platen (20) according to any one of claims 1 to 5, wherein: the panel (21) is further provided with a conductive wire (24) with a conductive function, and one end of the conductive wire (24) is electrically connected with the electrode point (23).

8. The printing platen (20) of claim 7, wherein: detachably be provided with base member (25) on the top surface of panel (21), the top surface of base member (25) is provided with first locating piece (22) electrode point (23), electrode point (23) are located the week side of first locating piece (22).

9. The printing platen (20) of claim 8, wherein:

the conductive wire (24) is arranged on the bottom surface of the substrate (25);

the top surface or the bottom surface of base member (25) is provided with recess (28), recess (28) extend to the edge of base member (25) from electrode point (23).

10. The printing platen (20) of claim 8, wherein: the diameter of the first positioning member (22) gradually increases from the top to the bottom thereof.

11. The printing platen (20) of claim 10, wherein: the shape of the first positioning member (22) is any one of a sphere, a cone, a needle, a hemisphere, and a bar shape having a hemisphere top.

12. A printing platen (20) according to any one of claims 8 to 11, wherein:

the panel (21) is provided with a through hole;

a second positioning piece (27) is arranged on the bottom surface of the base body (25), and the second positioning piece (27) is inserted into the through hole of the panel (21);

the axis of the second positioning part (27) and the axis of the first positioning part (22) are positioned on the same straight line;

the diameter of the second positioning piece (27) is gradually increased from the bottom to the top thereof;

the shape of the second positioning piece (27) is any one of spherical, conical, needle-shaped, hemispherical and bar-shaped with a hemispherical top;

the bottom surface of the base body (25) is provided with an adhesive layer (26), and the adhesive layer (26) is positioned between the panel (21) and the base body (25).

13. The utility model provides a vacuum silk screen printing machine which characterized in that: comprising a body (10), a printing platen (20) according to any one of claims 1 to 12 arranged in said body (10), and a controller (40) electrically connected to said electrode points (23).

14. The vacuum screen printing machine of claim 13, wherein:

the controller (40) is a PLC (programmable logic controller) 40;

the vacuum screen printing machine further comprises a manipulator (30), and the manipulator (30) is used for carrying the circuit board (50) into the machine body (10) or carrying the circuit board out of the machine body (10).

Technical Field

The invention relates to the field of manufacturing of PCB (printed circuit board), in particular to a printing bedplate and a vacuum screen printing machine with the same.

Background

Chinese patent No. CN201821437500.1 discloses a vacuum screen printing machine, referring to fig. 1, the vacuum screen printing machine includes a frame 1, a vacuum chamber arranged in the frame 1, a vacuum chamber composed of a small vacuum chamber 2 and a main vacuum chamber 3, a vacuum door 4 positioned on the outer wall of the main vacuum chamber 3, and a workbench positioned in the small vacuum chamber 2, a control cabinet 6 and an operation panel 7 communicated with the circuit of the vacuum screen printing machine are arranged beside the small vacuum chamber 2, a small vacuum cover 8 is arranged above the workbench, a cover displacement transmission mechanism for driving the small vacuum cover 8 to move horizontally to open the small vacuum chamber 2 is further arranged on the frame 1, and a platen displacement transmission mechanism for driving the workbench to move from the small vacuum chamber 2 to the main vacuum chamber 3 is arranged in the frame 1.

The operation method of the vacuum screen printing machine with the small vacuum chamber and the main vacuum chamber is similar to that of the vacuum screen printing machine with the small vacuum chamber and the main vacuum chamber generally:

s1, the workbench is positioned in the small vacuum chamber 2, and the cover body displacement transmission mechanism drives the small vacuum cover 8 to move horizontally so as to open the small vacuum chamber 2;

s2, next, placing the printed wiring board on the workbench by the worker, and positioning the printed wiring board by the worker to ensure the relative position of the printed wiring board on the workbench;

s3, after the printed circuit board is placed in place, the cover body displacement transmission mechanism drives the small vacuum cover 8 to move horizontally to seal the small vacuum chamber 2, then the platen displacement transmission mechanism drives the workbench to move horizontally, the printed circuit board is moved into the main vacuum chamber 3, and printing is started in the main vacuum chamber 3.

Specifically, refer to chinese patent No. CN201510534760.5, a resin ink vacuum hole plugging printing apparatus and a printing method thereof.

However, the vacuum screen printing machine needs to manually position the printed circuit board, and the degree of automation still needs to be improved.

Disclosure of Invention

Based on this, the invention aims to provide a printing platen and a vacuum screen printing machine with the printing platen, which can improve the automation degree of the vacuum screen printing machine.

A printed bedplate for placing a circuit board comprises a panel for supporting the circuit board, wherein the top surface of the panel is provided with at least three first positioning pieces, the at least three first positioning pieces determine a horizontal plane, the at least three first positioning pieces are used for positioning the circuit board, the top surface of the panel is also provided with at least two electrode points with a conductive function, and the electrode points can be electrically connected with the circuit board.

Compared with the prior art, the printing bedplate provided by the invention realizes the positioning of the circuit board by inserting at least three first positioning pieces into holes of the circuit board. After the circuit board is positioned, if the circuit board is placed in place, the circuit board is in physical contact with the electrode points, and at least two electrode points are electrically conducted through the circuit board, so that whether the circuit board is placed in place or not is judged, and the automation degree of the vacuum screen printing machine is improved.

Further, a straight line defined by the two electrode points intersects the length and width of the circuit board, respectively.

Furthermore, the two electrode points are respectively arranged in two areas of the panel corresponding to the opposite corners of the circuit board.

Furthermore, the top surface of panel is provided with four electrode points, four electrode points set up respectively the panel corresponds in four regions of circuit board four corners department.

Furthermore, the top surface of the panel is provided with four first positioning pieces, and the four first positioning pieces are respectively arranged in four areas of the panel corresponding to four corners of the circuit board.

Further, one first positioning member is provided at one side of each of the electrode points, and the perpendicular distance between the center of the electrode point and the center line of the provided first positioning member is less than 5 cm.

Furthermore, a conductive wire with a conductive function is further arranged on the panel, and one end of the conductive wire is electrically connected with the electrode point.

Further, detachably be provided with the base member on the top surface of panel, the top surface of base member is provided with first locating piece the electrode point, the electrode point is located the week side of first locating piece.

Further, the conductive line is disposed on a bottom surface of the base.

Further, the top surface or the bottom surface of the base body is provided with a groove, and the groove extends from the electrode point to the edge of the base body.

Further, the diameter of the first positioning member gradually increases from the top to the bottom thereof.

Further, the first positioning member may have any one of a spherical shape, a conical shape, a needle shape, a hemispherical shape, and a bar shape having a hemispherical top.

Further, a through hole is formed in the panel.

Furthermore, a second positioning piece is arranged on the bottom surface of the base body and inserted into the through hole of the panel.

Further, the axis of the second positioning piece and the axis of the first positioning piece are located on the same straight line.

Further, the diameter of the second positioning part gradually increases from the bottom to the top of the second positioning part.

Further, the shape of the second positioning member is any one of a sphere, a cone, a needle, a hemisphere, and a bar shape having a hemispherical top.

Furthermore, the bottom surface of the base body is provided with an adhesive layer, and the adhesive layer is positioned between the panel and the base body.

A vacuum screen printing machine comprises a machine body, the printing bedplate arranged in the machine body and a controller electrically connected with electrode points.

Compared with the prior art, the vacuum screen printing machine provided by the invention has the advantages that after the printing bedplate is adopted, the circuit board is positioned by inserting the at least three first positioning pieces into the holes of the circuit board. After the circuit board is positioned, if the circuit board is placed in place, the circuit board is in physical contact with the electrode points, and at least two electrode points are electrically conducted through the circuit board, so that whether the circuit board is placed in place or not is judged, and the automation degree of the vacuum screen printing machine is improved.

Further, the controller is a PLC controller.

Further, the vacuum screen printing machine further comprises a manipulator, and the manipulator is used for carrying the circuit board into the machine body or out of the machine body.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of a vacuum screen printing machine in the background art;

FIG. 2 is a schematic structural view of a printing platen according to an embodiment;

FIG. 3 is a first structural schematic view of a first positioning member according to an embodiment;

FIG. 4 is a second structural view of the first positioning element according to the first embodiment;

FIG. 5 is a third structural view of the first positioning element according to the first embodiment;

FIG. 6 is a fourth structural view of the first positioning element according to the first embodiment;

FIG. 7 is a fifth structural view of the first positioning element according to the first embodiment;

fig. 8 is a schematic structural diagram of a vacuum screen printing machine according to the first embodiment;

FIG. 9 is a schematic diagram of the connection of the controller according to the first embodiment;

fig. 10 is a schematic structural view of a printing platen according to the second embodiment;

fig. 11 is a schematic structural view of a vacuum screen printing machine according to a second embodiment;

FIG. 12 is a schematic connection diagram of the controller according to the second embodiment;

fig. 13 is a schematic structural view of a printing platen according to the third embodiment;

FIG. 14 is a first structural schematic view of a first positioning member according to a third embodiment;

FIG. 15 is a second structural view of the first positioning member according to the third embodiment;

FIG. 16 is a third structural view of the first positioning member according to the third embodiment;

FIG. 17 is a fourth structural view of the first positioning member according to the third embodiment;

FIG. 18 is a fifth construction of a first positioning member in accordance with the third embodiment;

fig. 19 is a schematic structural diagram of a vacuum screen printing machine according to a third embodiment;

FIG. 20 is a first structural schematic view of a first positioning member according to the fourth embodiment;

FIG. 21 is a second structural view of the first positioning member according to the fourth embodiment;

FIG. 22 is a third structural view of the first positioning member in accordance with the fourth embodiment;

FIG. 23 is a fourth schematic view of a first retainer in accordance with a fourth embodiment;

FIG. 24 is a fifth construction of a first positioning member in accordance with the fourth embodiment;

FIG. 25 is a schematic structural view of a first positioning member according to a fifth embodiment;

FIG. 26 is a schematic structural view of a first positioning member according to a sixth embodiment;

reference numerals:

1. a frame; 2. a small vacuum chamber; 3. a main vacuum chamber; 4. a vacuum door; 6. a control cabinet; 7. an operation panel; 8. a small vacuum cover;

10. a body; 20. a printing platen; 21. a panel; 22. a first positioning member; 23. an electrode point; 24. a conductive wire; 25. a substrate; 26. a bonding layer; 27. a second positioning member; 28. a groove; 30. a manipulator; 40. a controller; 50. a circuit board.

Detailed Description