TWI783373B - Double-stage vacuum printing device and method thereof - Google Patents

Abstract

The present invention discloses a double-table vacuum printing device and its method. Through the alternate conveying operation of the first conveying unit and the second conveying unit, the first worktable and the second workbench are placed in the storage space for materials in and out, and the first vacuum The cavity and the second vacuum cavity circulate alternately to carry out the feeding and discharging of the two workpieces and the vacuum printing operation, and the continuous printing method can effectively increase the production capacity. In addition, the present invention can not only adjust the position of the screen frame by using the alignment adjustment module, so that the screen plate installed on the screen frame can accurately align the position of the workpiece to be printed, but also can use the positioning structure design to improve the position of the second screen frame. The stability of the operation of the first work surface and the second work surface improves the product quality and yield.

Description

Double-stage vacuum printing device and method thereof

The present invention relates to a double-table vacuum printing device and its method, in particular to a double-table alternate cycle workpiece operation to increase production capacity, and can make the printing process more accurate and highly stable through fine-tuning and positioning. The technical field of sex.

By the way, resin hole filling technology is becoming more and more widely used in the printed circuit board industry, such as POFV process (via on pad). Technology that fills through-holes with resin.

Continuing, the existing printing device has a single-table printing device and a double-table printing device. For a single-table printing device, although vacuum printing can be carried out in the vacuum chamber, when refueling the workpiece, it is necessary to break the vacuum to take out the printed workpiece, then insert a new workpiece to be processed, and vacuumize it. Vacuum printing, this production method not only causes a long idle time of the device during the refueling process, but also requires relatively complicated operations for space extraction and vacuum breaking, resulting in poor production efficiency. Furthermore, when the workpiece is placed on the workbench during transportation, it is easy to produce deviation, which makes the printing accuracy of the workpiece poor and seriously affects the production yield. Although a fine-tuning device can be installed on the workbench, it will increase the complexity of the structure. Spend.

Another example is a double-table printing device. Although the two worktables can be used to transfer workpieces back and forth to solve the problem of long idle time during the refueling process, there is still a tendency for workpieces to shift when they are placed on the workbench during transportation. . If you want to install the fine-tuning device in the vacuum environment of the double-table printing device, you must install a set of fine-tuning devices on both workbenches, because there must be enough space to install the fine-tuning device and consider the problem of circuit configuration, so that the two work relative match If the placement distance becomes very large, not only the structure becomes quite complicated, but also the wiring problem is extremely difficult to complete, and the overall volume of the double-table printing device will also become quite large, occupying manufacturing space. Therefore, how to simplify the overall structural complexity of the double-table printing device and reduce the difficulty of installing the fine-tuning device, so as to achieve precise calibration and improve production efficiency and quality yield is an urgent problem to be solved.

In view of the above-mentioned problems in the prior art, the main purpose of the present invention is to provide an alignment adjustment module that can adjust the screen frame, which can adjust the position of the screen frame in the X-axis, Y-axis and horizontal rotation adjustment modes, so that the screen The screen on the frame can correct the position of the alignment workpiece to be printed, so as to improve the printing accuracy and effectively improve the product yield.

A secondary purpose of the present invention is to provide a positioning structure capable of improving the stability of the worktable during transportation.

Another object of the present invention is to provide a structural design with the function of strengthening the support, which can strengthen the stress on the worktable during the support printing, and can effectively avoid the problem of the central part of the workpiece being sunken during printing.

Another object of the present invention is to provide a way to transport two vacuum workbenches respectively through two conveying units configured with different heights and widths, and carry out the feeding and discharging of the two workpieces and the vacuum printing operation alternately in a cycle, and share the refueling and lifting module to carry out Airtight refueling can effectively save manufacturing costs and solve device idle time, so as to improve production efficiency.

According to the purpose of the present invention, a double-table vacuum printing device is proposed, which includes a first vacuum table, a second vacuum table, a conveying module, an alignment adjustment module and a vacuum control module. The first vacuum workbench includes a first workbench, a feeding and discharging module connected to the first workbench and a first vacuum cavity. The inlet and outlet module includes an inlet and outlet accommodation space, and the inlet and outlet accommodation The space communicates with the first vacuum cavity. The second vacuum workbench is connected with the first vacuum workbench, and the second vacuum workbench includes a second workbench, a printing module and a second vacuum cavity. The printing module is located above the second working table, and the second vacuum chamber communicates with the first vacuum chamber. The conveying module is arranged in the first vacuum workbench and the second vacuum workbench, and the conveying module includes a first conveying unit and a second conveying unit configured with different heights and widths. The first conveying unit is used for conveying the first working surface to and fro, and the second conveying unit is used for conveying the second working surface to and fro. The alignment adjustment module is arranged between the second worktable and the printing module. The alignment adjustment module includes a body, at least three sets of XY axis adjustment components and a screen frame. Three sets of XY axis adjustment components are respectively installed on the side of the body at different positions. The screen frame is installed on the body. The three sets of XY axis adjustment components are used to adjust the X axis, Y axis linear displacement and horizontal rotation of the screen frame. The frame is used to install a screen version. The vacuum control module is disposed between the first vacuum table and the second vacuum table. The vacuum control module is used to control the vacuum state and vacuum breaking state inside the material-in and out-feed accommodating space, and maintain the vacuum state of the first vacuum chamber and the second vacuum chamber. Wherein, through the alternate conveying operation of the first conveying unit and the second conveying unit, the first working surface and the second working surface are alternately carried out in the feeding and discharging accommodating space, the first vacuum chamber and the second vacuum chamber. The incoming and outgoing materials and printing operations.

According to the above technical features, the three sets of XY axis adjustment assemblies include one XY axis adjustment assembly in the X axis and two XY axis adjustment assemblies in the Y axis, the XY axis adjustment assemblies in the X axis and the Y axis are set On the same side and opposite ends of the main body, the two Y-axes are respectively arranged on the diagonal side of the main body.

According to the above-mentioned technical features, when the XY-axis adjustment components are in four groups, they are divided into two XY-axis adjustment components in the X-axis and two X-axis adjustment components in the Y-axis. The aforementioned XY axis adjustment components are respectively arranged on the four sides of the body, two X axes are respectively arranged on the side of the diagonal position of the body, and two Y axes are respectively arranged on the side of the diagonal position of the body, X The XY axis adjustment components of the axial direction and the Y axis are disposed on the same side and opposite ends of the body.

According to the above technical feature, the XY axis adjustment assembly includes an X-axis slide rail, a Y-axis slide rail and a pivoting member. An X-axis slide member, a first shaft member and a first driver are installed on the X-axis slide rail. The first driver is coupled to the first shaft, and the X-axis slider is connected to the first shaft. The first driver is used to drive the first shaft to move and drive the X-axis slider to slide along the X-axis on the X-axis slide rail. . A Y-axis slide member, a second shaft member and a second driver are installed on the Y-axis slide rail. The second driver is coupled to the second shaft, and the Y-axis slider is connected to the second shaft. The second driver is used to drive the second shaft to move and drive the Y-axis slider to slide along the Y-axis on the Y-axis slide rail. . The pivoting part is pivotally connected to the X-axis sliding part and the Y-axis sliding part, and the pivoting part is correspondingly pivoted according to the sliding displacement of the X-axis sliding part and the Y-axis sliding part.

According to the above technical features, the screen frame includes a screen clamping module, and the screen clamping module includes a clamping part and a clamping adjustment part. The clamping adjusting part is connected with the clamping part, the clamping part is used for clamping the screen plate, and the clamping adjusting part is used for adjusting the tightness of the clamping part clamping the screen plate.

According to the above technical features, the alignment adjustment module further includes a screen frame fixing unit, and the screen frame fixing unit is arranged between the main body and the screen frame. The screen frame fixing unit includes a screen frame driving part, a screen frame positioning part and a positioning adjusting part. The screen frame driver is arranged on the body. The screen frame positioning part is arranged on the screen frame. The positioning adjusting part is pivotally connected to the screen frame positioning part and the screen frame driving part, and the positioning adjusting part is to adjust the tightness of the screen frame positioning part on the body according to the drive of the screen frame driving part

According to the above technical features, the double-table vacuum printing device further includes a refueling lifting module, and the refueling lifting module is arranged on the first vacuum workbench. The refueling lifting module is used to lift the first working surface and the second working surface to the material inlet and outlet accommodating space, and the refueling lifting module is used to lower the first working surface and the second working surface to move from the material feeding and discharging accommodating space into the first vacuum chamber.

According to the above technical features, the feeding and discharging module further includes a cover, an opening and an extension. The extension part is arranged on the outer periphery of the material inlet and outlet accommodating space, and the opening communicates with the material inlet and outlet accommodating space. The cover body is used to cover the opening, a first sealing member is arranged on the first working table, and a second sealing member is arranged on the second working table. The positions of the first seal and the second seal are corresponding extensions part, through the tight contact between the first sealing member and the second sealing member and the extension part, the material-in and out-of-outlet accommodating space and the first vacuum cavity are in an airtight state that is not communicated with each other.

According to the above technical features, the printing module includes a printing element, a printing lifting module and a printing actuator. The printing lifting module is used to control the moving and lifting operation of the printed parts, and the printing actuator is used to control the printing swinging operation of the printed parts.

According to another object of the present invention, a double-table vacuum printing method is proposed, which includes providing a first vacuum workbench and a second vacuum workbench connected, a first vacuum chamber and a second vacuum workbench of the first vacuum workbench A second vacuum chamber of the vacuum table is connected. A pair of alignment adjustment modules for adjusting the position of a screen frame is provided, and the alignment adjustment modules are located in the second vacuum cavity (23). A first workpiece is placed on a first worktable of the first vacuum workbench, a second workbench of the second vacuum workbench is located under a printing module, and the printing module is located in the second vacuum cavity (23) . The first working table is moved to the bottom of the printing module, and the second working table is moved to the bottom of a feeding and discharging module of the first vacuum cavity. The position of the screen frame is adjusted to align the position of the first workpiece to be printed. The screen frame is equipped with a screen plate, and a second workpiece is placed on the second working table (21) at the same time. After the first workpiece is printed, the positions of the first working table and the second working table are moved and exchanged. Print the second workpiece, and at the same time refuel the first workpiece on the first worktable, and return to the step of placing a first workpiece on a first worktable on the first vacuum table, and repeat the steps implement.

According to the above technical features, wherein in the step of adjusting the position of the screen frame to align the position to be printed of the first workpiece, a charge-coupled device (CCD) alignment system is used to detect the position to be printed of the first workpiece to generate a pair of The alignment signal is sent to an external device, and the external device controls the alignment adjustment module to adjust the position of the screen frame according to the alignment signal.

According to the above technical features, the alignment adjustment module includes adjustment modes for X-axis, Y-axis and horizontal rotation of the screen frame position.

According to the above technical feature, wherein in the step of printing the second workpiece, the printing time is greater than or equal to the refill time.

According to the above technical features, in the step of refueling the first workpiece on the first worktable, the first workpiece further includes a vacuum breaking step when refueling, and the feeding and discharging module has a feeding and discharging accommodating space , using the first worktable to block the material inlet and outlet accommodating space and the first vacuum chamber, so that the first workpiece can be refueled in a vacuum state in the material inlet and outlet accommodating space, the first vacuum chamber and the second vacuum chamber Maintain a vacuum.

According to another object of the present invention, a double-table vacuum printing device is proposed, including a first vacuum table, a second vacuum table, a conveying module, a vacuum control module, and a first table transmission module. group and a second workbench transmission module. The first vacuum workbench includes a first workbench, a feeding and discharging module connected to the first workbench and a first vacuum cavity. The material inlet and outlet module includes a material inlet and outlet accommodating space, and the material inlet and outlet accommodating space communicates with the first vacuum cavity. The bottom of the first working surface has a first positioning portion. The second vacuum workbench is connected with the first vacuum workbench, and the second vacuum workbench includes a second workbench, a printing module and a second vacuum cavity. The printing module is located above the second working table, and the second vacuum chamber communicates with the first vacuum chamber. The bottom of the second working surface has a second positioning portion. The conveying module is arranged in the first vacuum workbench and the second vacuum workbench, and the conveying module includes a first conveying unit and a second conveying unit configured with different heights and widths. The first conveying unit is used for conveying the first working surface to and fro, and the second conveying unit is used for conveying the second working surface to and fro. The vacuum control module is disposed between the first vacuum table and the second vacuum table. The vacuum control module is used to control the vacuum state and vacuum breaking state inside the material-in and out-feed accommodating space, and maintain the vacuum state of the first vacuum chamber and the second vacuum chamber. The first worktable transmission module is arranged on the first conveying unit. The first worktable transmission module is used to carry the first worktable. The first worktable transmission module has a third positioning part. The third positioning part cooperates with the first positioning part for mutual docking and positioning. The transmission module of the second workbench is arranged on the second conveying unit, and the transmission module of the second workbench is used to carry the Two working tables, the transmission module of the second working table has a fourth positioning part. The fourth positioning part cooperates with the second positioning part for mutual docking and positioning. Wherein, through the alternate conveying operation of the first conveying unit and the second conveying unit, the first working surface and the second working surface are alternately carried out in the feeding and discharging accommodating space, the first vacuum chamber and the second vacuum chamber. The incoming and outgoing materials and printing operations.

According to the above technical features, the refueling lifting module includes a refueling lifting driver and a refueling carrier. The refueling carrier has a fifth positioning part, and the fifth positioning part cooperates with the first positioning part and the second positioning part for mutual docking and positioning. The refueling lifting driver is coupled to the refueling carrier, and the refueling lifting driver is used to drive the refueling carrier to lift and descend. The refueling carrier is used to carry the first working surface and the second working surface.

According to the above technical features, the double-table vacuum printing device further includes a strengthening lifting module. The enhanced lifting module is arranged in the second vacuum chamber of the second vacuum workbench, and the enhanced lifting module includes an enhanced lifting driver and a top support. The enhanced lifting driver is coupled to the top support, and the enhanced lifting driver is used to drive the operation of lifting and lowering the top support, and the top support is used to prop up the bottom of the first work surface and the second work surface.

According to another object of the present invention, a double-table vacuum printing method is proposed, which includes providing a first vacuum workbench and a second vacuum workbench connected, a first vacuum chamber and a second vacuum workbench of the first vacuum workbench A second vacuum chamber of the vacuum table is connected. A first workbench transmission module and a second workbench transmission module are provided to carry and position the first workbench and the second workbench respectively. A first workpiece is placed on a first working table of the first vacuum table, a second working table of the second vacuum table is located under a printing module, and the printing module is located in the second vacuum chamber. The first worktable transmission module is moved to the bottom of the printing module, and the second worktable transmission module is moved to the bottom of a feeding and discharging module of the first vacuum cavity. When printing the first workpiece, a second workpiece is placed on the second working table at the same time. After the first workpiece is printed, the positions of the first working table and the second working table are moved and exchanged. Print the second workpiece, and at the same time refuel the first workpiece on the first worktable, and return to the From the step of placing a first workpiece on a first worktable of the first vacuum workbench, each step is repeated.

According to the above technical features, after the step of providing the first workbench transmission module and the second workbench transmission module, it further includes a refueling, lifting and positioning step, using a refueling and lifting module to correspond to the first worktable or the second worktable. The second worktable is positioned and fixed.

According to the above technical features, before the step of printing the first workpiece, it further includes a step of strengthening the support to strengthen the stress on the first work surface and the second work surface during the support printing.

According to the purpose of the present invention, a double-table vacuum printing device is proposed, including a first vacuum table, a second vacuum table, a conveying module, a position adjustment module, a vacuum control module, a first A worktable transmission module and a second worktable transmission module. The first vacuum workbench includes a first workbench, a feeding and discharging module connected to the first workbench and a first vacuum cavity. The material inlet and outlet module includes a material inlet and outlet accommodating space, and the material inlet and outlet accommodating space communicates with the first vacuum cavity. The bottom of the first working surface has a first positioning portion. The second vacuum workbench is connected with the first vacuum workbench, and the second vacuum workbench includes a second workbench, a printing module and a second vacuum cavity. The printing module is located above the second working table, and the second vacuum chamber communicates with the first vacuum chamber (13). The bottom of the second working surface has a second positioning portion. The conveying module is arranged in the first vacuum workbench and the second vacuum workbench, and the conveying module includes a first conveying unit and a second conveying unit configured with different heights and widths. The first conveying unit is used for conveying the first working surface to and fro, and the second conveying unit is used for conveying the second working surface to and fro. The alignment adjustment module is arranged between the second worktable and the printing module. The alignment adjustment module includes a body, at least three sets of XY axis adjustment components and a screen frame. Three sets of XY axis adjustment components are respectively installed on the side of the body at different positions. The screen frame is installed on the body. The three sets of XY axis adjustment components are used to adjust the X axis, Y axis linear displacement and horizontal rotation of the screen frame. The frame is used to install a screen version. The vacuum control module is disposed between the first vacuum table and the second vacuum table. For vacuum control module To control the vacuum state and vacuum breaking state inside the material-in-out accommodation space and maintain the vacuum state in the first vacuum cavity and the second vacuum cavity. The first worktable transmission module is arranged on the first conveying unit. The first worktable transmission module is used to carry the first worktable. The first worktable transmission module has a third positioning part. The third positioning part cooperates with the first positioning part for mutual docking and positioning. The second worktable transmission module is arranged on the second conveying unit, and the second worktable transmission module is used for carrying the second worktable, and the second worktable transmission module has a fourth positioning part. The fourth positioning part cooperates with the second positioning part for mutual docking and positioning. Wherein, through the alternate conveying operation of the first conveying unit and the second conveying unit, the first working surface and the second working surface are alternately carried out in the feeding and discharging accommodating space, the first vacuum chamber and the second vacuum chamber. The incoming and outgoing materials and printing operations.

According to another object of the present invention, a double-table vacuum printing method is proposed, which includes providing a first vacuum workbench and a second vacuum workbench connected, a first vacuum chamber and a second vacuum workbench of the first vacuum workbench A second vacuum chamber of the vacuum table is connected. A first workbench transmission module and a second workbench transmission module are provided to carry and position the first workbench and the second workbench respectively. A pair of alignment adjustment modules for adjusting the position of a screen frame is provided, and the alignment adjustment modules are located in the second vacuum cavity. A first workpiece is placed on a first working table of the first vacuum table, a second working table of the second vacuum table is located under a printing module, and the printing module is located in the second vacuum cavity. The first worktable transmission module is moved to the bottom of the printing module, and the second worktable transmission module is moved to the bottom of a feeding and discharging module of the first vacuum cavity. The position of the screen frame is adjusted to align the position of the first workpiece to be printed. The screen frame is equipped with a screen plate, and a second workpiece is placed on the second worktable. After the first workpiece is printed, the positions of the first worktable transmission module and the second worktable transmission module are moved and exchanged. Print the second workpiece, and at the same time refuel the first workpiece on the first worktable, and return to the step of placing a first workpiece on a first worktable on the first vacuum table, and repeat the steps implement.

100, 200, 300: double table vacuum printing device

10: The first vacuum table

11: First work surface

111: first seal

112: The first positioning department

12: Inlet and outfeed module

121: storage space for material in and out

122: cover body

123: opening

124: Extension

125: Opening and closing module

13: The first vacuum chamber

20: The second vacuum table

21: Second work surface

211:Second seal

212: The second positioning department

22: Printing module

221: Printed parts

222: Printing Lifting Die

223: Printing drive

23: The second vacuum chamber

30: Conveyor module

31: The first conveying unit

32: Second conveying unit

40: Alignment adjustment module

41: Ontology

42: XY axis adjustment components

421: X axis

422: Y axis

423: X-axis slide rail

4231: X-axis slider

4232: the first shaft

4233:First drive

424: Y-axis slide rail

4241: Y-axis slider

4242: Second shaft

4243: Second drive

425: Pivot

43: screen frame

431: Screen clamping module

4311: clamp

4312: Clamping Adjustment

44: Net frame fixing unit

441: Screen frame driver

442: Frame positioning part

443: Positioning adjustment piece

50: Vacuum control module

60: Refueling lift module

61: Refueling lift drive

62: Refueling carrier

621: Fifth Positioning Department

70: The first workbench transmission module

71: The third positioning department

80: Second workbench transmission module

81: The fourth positioning department

90:Enhanced lifting module

91:Enhanced lifting drive

92: top support

S: screen version

A: location

P1: first workpiece

P2: Second workpiece

S10, S11, S12, S13, S14, S15, S16: steps

S20, S21, S22, S23, S24, S25, S26: steps

S30, S31, S32, S33, S34, S35, S36, S37: steps

Figure 1 is a schematic diagram of the appearance structure of the present invention.

Fig. 2 is a structural sectional view of the first embodiment of the present invention.

Fig. 3 is a three-dimensional structure diagram of the first embodiment of the present invention.

FIG. 4 is a schematic diagram of the double-mesa structure of the first embodiment of the present invention.

Fig. 5 is a structural schematic diagram of the alignment adjustment module of the present invention.

Figure 6 is an enlarged view of the X-axis structure in the alignment adjustment module of the present invention.

Fig. 7 is an enlarged view of the Y-axis structure in the alignment adjustment module of the present invention.

Figure 8 is an exploded view of the partial structure of the alignment adjustment module of the present invention.

Fig. 9 is an enlarged view of partial structural decomposition of the alignment adjustment module of the present invention.

Fig. 10 is a schematic diagram of adjusting the position of the screen frame according to the present invention.

Fig. 11 is a flowchart of steps of the first embodiment of the present invention.

Fig. 12 is a schematic diagram of the operating state of the first embodiment of the present invention.

Fig. 13 is a schematic diagram of the operating state of the first embodiment of the present invention.

Fig. 14 is a schematic diagram of the operating state of the first embodiment of the present invention.

Fig. 15 is a schematic diagram of the operating state of the first embodiment of the present invention.

Fig. 16 is a schematic diagram of the operating state of the first embodiment of the present invention.

Fig. 17 is a cross-sectional view of the structure of the second embodiment of the present invention.

Fig. 18 is a schematic diagram of the structure of the double-table transmission module of the present invention.

FIG. 19 is a schematic diagram of the double-mesa structure of the second embodiment of the present invention.

Fig. 20 is a schematic diagram of the structure of the refueling lifting module according to the second embodiment of the present invention.

Fig. 21 is a schematic diagram of the structure of the enhanced lifting module according to the second embodiment of the present invention.

Fig. 22 is a flowchart of the steps of the second embodiment of the present invention.

Fig. 23 is a structural sectional view of the third embodiment of the present invention.

Fig. 24 is a flowchart of the steps of the third embodiment of the present invention.

For the benefit of the examiner to understand the technical features, content and advantages of the present invention and the effects that can be achieved, the present invention is hereby described in detail in the form of embodiments in conjunction with the accompanying drawings, and the drawings used therein, its The subject matter is only for illustration and auxiliary instructions, and not necessarily the true proportion and precise configuration of the present invention after implementation, so it should not be interpreted based on the proportion and configuration relationship of the attached drawings, and limit the scope of rights of the present invention in actual implementation. Together first describe.

Please refer to Fig. 1, Fig. 2 and Fig. 3 at the same time. Fig. 1 is a schematic view of the appearance structure of the present invention; Fig. 2 is a structural cross-sectional view of the first embodiment of the present invention; Fig. 3 is a first embodiment of the present invention Stereoscopic structure diagram of the embodiment. The double-stage vacuum printing device 100 includes a first vacuum table 10 , a second vacuum table 20 , a conveying module 30 , an alignment adjustment module 40 and a vacuum control module 50 . The second vacuum workbench 20 is connected to the first vacuum workbench 10, the conveying module 30 is set in the first vacuum workbench 10 and the second vacuum workbench 20, and the alignment adjustment module 40 is located in the second vacuum workbench 20 . The vacuum control module 50 is disposed between the first vacuum table 10 and the second vacuum table 20 .

The first vacuum workbench 10 includes a first workbench 11 , a feeding and discharging module 12 connected to the first workbench 11 and a first vacuum cavity 13 . The material inlet and outlet module 12 includes a material inlet and outlet accommodating space 121 , and the material inlet and outlet accommodating space 121 communicates with the first vacuum cavity 13 . Specifically, the feeding and discharging module 12 further includes a cover 122 , an opening 123 and an extension 124 . The extension part 124 is disposed on the outer periphery of the material inlet and outlet accommodating space 121 , and the opening 123 communicates with the material inlet and outlet accommodating space 121 . Wherein the first vacuum workbench 10 further includes an opening and closing module 125 for opening and closing the cover 122, the opening and closing module 125 can be a slide rail structure, a locking structure, a snapping structure, etc., in the first embodiment Taking the slide rail structure as an example, the cover body 122 is opened or closed by sliding on the slide rail by using the linear movement of the slide rail. The opening and closing modules 125 for closing the cover 122 all belong to the scope of protection of this patent.

The second vacuum workbench 20 includes a second workbench 21 , a printing module 22 and a second vacuum cavity 23 . The printing module 22 is located above the second working platform 21 , and the second vacuum chamber 23 communicates with the first vacuum chamber 13 . The printing module 22 includes a printing part 221 , a printing lifting module 222 and a printing actuator 223 . The printing lifting module 222 is used to control the moving and lifting operation of the printing piece 221, and the printing actuator 223 is used to control the printing swing operation of the printing piece 221. The printing piece 221 can be a flat plate made of any material such as a scraper, a scraper, or a squeegee. body.

The conveying module 30 includes a first conveying unit 31 and a second conveying unit 32 configured with different heights and widths. Since the conveying ranges of the first conveying unit 31 and a second conveying unit 32 span across the second vacuum chamber 23 and the first vacuum chamber 13, the first working surface 11 and the second working surface 21 can circulate alternately. It works back and forth in the second vacuum chamber 23 and the first vacuum chamber 13 . The first conveying unit 31 is used to convey the first working surface 11 back and forth, and the second conveying unit 32 is used to convey the second working surface 21 back and forth. For further detailed description, please also refer to FIG. 4 , which is a schematic diagram of a double-mesa structure in the first embodiment of the present invention. In the first implementation, the first conveying unit 31 and the second conveying unit 32 use a double-track conveying structure, and due to the different height configurations, the conveying operation height of the first working surface 11 is greater than that of the second working surface 21, and in order to simplify the overall The structural design reduces the production cost and improves the production efficiency at the same time. The first work surface 11 and the second work surface 21 of the present invention share a set of refueling and lifting modules 60 . The refueling lifting module 60 is set on the first vacuum table 10, and the width configuration of the first conveying unit 31 and the second conveying unit 32 are different, so that the first working table 11 straddles the first conveying unit on the double track 31 The track width will be greater than the track width of the second working surface 21, and when refueling and lifting are to be performed in the first vacuum chamber 13, the lifting operation of the refueling lifting module 60 will allow the second working surface 21 It can pass through the first conveying unit 31 to reach the material inlet and outlet accommodating space 121 . Among them, the refueling lifting module 60 is used to lift the first working surface 11 and the second working surface 21 into the material inlet and outlet accommodating space 121, and is used to lower the first working surface 11 and the second working surface 21 from the material inlet and outlet space. The placement space 121 is moved into the first vacuum cavity 13 .

Continuing with the above operating principle, in order to achieve the continuous printing effect in a vacuum state, the vacuum state in the first vacuum chamber 13 and the second vacuum chamber 23 must not be damaged while changing the material, so the first working surface 11 The upper ring is provided with a first sealing member 111 , and the position of the first sealing member 111 is corresponding to the extension portion 124 . A second sealing member 211 is disposed on the second working surface 21 , and the position of the second sealing member 211 is corresponding to the extension portion 124 . The refueling lifting module 60 lifts the second working table surface 21 until the second sealing member 211 is tightly against the extension part 124, so that the material inlet and outlet accommodating space 121 is in an inseparable relationship with the first vacuum chamber 13 and the second vacuum chamber 23. The air-tight closed state allows the inlet and outlet material accommodating space 121 to form an independent vacuum space, while the first vacuum chamber 13 and the second vacuum chamber 23 are another independent vacuum space. In the same way, when the refueling lifting module 60 lifts the first working surface 11 until the first sealing member 111 closely abuts against the extension part 124, it also has the material inlet and outlet accommodating space 121 and the first vacuum chamber 13 and the second vacuum chamber. 23 are in an airtight closed state that is not connected to each other.

The vacuum control module 50 is used to control the vacuum state and the vacuum breaking state inside the material inlet and outlet accommodating space 121 , and maintain the vacuum state of the first vacuum chamber 13 and the second vacuum chamber 23 . Specifically, when refueling, after using the first work surface 11 or the second work surface 21 to form two separate vacuum spaces, the vacuum control module 50 controls the first vacuum chamber 13 and the second vacuum chamber 23 to maintain Vacuum state, and open the cover body 122 to make the material inlet and outlet storage space 121 consistent with the outside air pressure to form a vacuum breaking state, at this time, the refueling operation can be performed through the opening 123 . After refueling, cover the opening 123 with the cover body 122, and use the vacuum control module 50 to vacuumize the material inlet and outlet accommodating space 121 until the vacuum degree of the material inlet and outlet accommodating space 121 is the same as that of the first vacuum cavity 13, After the vacuum degree in the second vacuum chamber 23 reaches the same level, the first worktable 11 or the second worktable 21 is lowered through the refueling lifting module 60 and moved from the material inlet and outlet accommodating space 121 to the first vacuum chamber 13 . In this way, through the alternate conveying operation of the first conveying unit 31 and the second conveying unit 32, the first worktable 11 and the second workbench 21 are placed in the feeding and discharging accommodating space 121, the first vacuum chamber 13 and the second working table. The two vacuum chambers 23 alternately carry out the feeding and discharging and printing operations of the two workpieces, which will be described in detail later.

The alignment adjustment module 40 is disposed between the second working surface 21 and the brush module 22 . The alignment adjustment module 40 includes a main body 41 , at least three sets of XY axis adjustment components 42 and a screen frame 43 . Three sets of XY axis adjustment The whole components 42 are respectively arranged on the sides of the main body 41 at different positions. The screen frame 43 is installed on the main body 41. Three sets of XY axis adjustment components 42 are used to adjust the X-axis, Y-axis linear displacement and horizontal rotation of the screen frame 43 , The screen frame 43 is used to install a screen version S. The purpose of the alignment adjustment module 40 is to adjust the position of the screen frame, so that the screen plate installed on the screen frame can accurately align the position of the workpiece to be printed. Firstly, the structural design of the novel alignment adjustment module 40 of the present invention will be described in detail, please refer to FIG. 5 to FIG. 9 at the same time. As shown in Fig. 5, it is a schematic structural diagram of the alignment adjustment module of the present invention. The three sets of XY-axis adjustment assemblies 42 include one XY-axis adjustment assembly for the X-axis 421 and two XY-axis adjustment assemblies for the Y-axis 422 . The XY-axis adjusting components of the X-axis 421 and the Y-axis 422 are disposed on the same side and opposite ends of the body 41 , and the two Y-axes 422 are respectively disposed on the diagonal side of the body 41 . In addition to setting three sets of XY-axis adjustment components 42, XY-axis adjustment components 42 can also be provided on the four sides of the body 41. For example, four sets of XY-axis adjustment components 42 are divided into two X-axis adjustment components. 421 and two Y-axis 422 XY axis adjustment components. The two X-axis 421 are respectively arranged on the side of the diagonal position of the body 41, and the two Y-axis 422 are respectively arranged on the side of the diagonal position of the body 41. The XY axes of the X-axis 421 and the Y-axis 422 The adjusting component is disposed on the same side and opposite ends of the body 41 . The same effect can be achieved regardless of whether three or four sets of XY axis adjustment components 42 are installed. In the first embodiment, four sets of adjustment components 42 are used as an example. It is worth noting that the same axis must be installed on the diagonal position side In this way, the adjustment mode of X-axis, Y-axis and horizontal rotation can be achieved.

Continuing from the previous paragraph, the structural design principles of each group of XY axis adjustment components 42 are the same, and the difference lies in the driving modes of the X axis and the Y axis. First, the structure of the overall XY-axis adjustment assembly 42 will be explained. Please refer to Figure 6 and Figure 7 at the same time. Figure 6 is an enlarged view of the X-axis structure in the alignment adjustment module of the present invention; Figure 7 is the structure of the present invention. Enlarged view of the Y-axis structure in the alignment adjustment module. The XY-axis adjusting assembly 42 includes an X-axis sliding rail 423 , a Y-axis sliding rail 424 and a pivoting member 425 . The X-axis sliding rail 423 is equipped with an X-axis sliding part 4231 , a first shaft part 4232 and a first driver 4233 . The first driver 4233 is coupled to the first shaft 4232, the X-axis slider 4231 is connected to the first shaft 4232, and the first driver 4233 is used to drive the first shaft 4232 to move and drive the X-axis slider 4231 on the X-axis slide rail 423 Sliding displacement along the X axis. On Y-axis slide rail 424 A Y-axis slider 4241 , a second shaft 4242 and a second driver 4243 are installed. The second driver 4243 is coupled to the second shaft 4242, the Y-axis slider 4241 is connected to the second shaft 4242, and the second driver 4243 is used to drive the second shaft 4242 to move and drive the Y-axis slider 4241 on the Y-axis slide rail 424 along the Y-axis sliding displacement. Wherein, the X-axis slide rail 423 and the Y-axis slide rail 424 are set up and down in a staggered manner, so they will not interfere with each other in axial movement. Linear motion on rails. The pivoting member 425 is pivotally connected to the X-axis sliding member 4231 and the Y-axis sliding member 4241 . The pivoting member 425 pivots according to the sliding displacement of the X-axis sliding member 4231 and the Y-axis sliding member 4241 .

As shown in Fig. 8, it is an exploded view of the partial structure of the alignment adjustment module of the present invention. The screen frame 43 includes a screen clamping module 431 . The screen clamping module 431 includes a clamping part 4311 and a clamping adjustment part 4312 . The clamping adjustment part 4312 is connected to the clamping part 4311, and the clamping part 4311 is used to clamp the screen S. Since the type and thickness of the screen S are different, the clamping adjustment part 4312 can be used to adjust the clamping part 4311 Clamping the tightness of the screen S to achieve stability, not only conforms to all types of screen S, but also facilitates the operation and replacement of the screen S.

As shown in Fig. 9, it is an enlarged view of the partial structural decomposition of the alignment adjustment module of the present invention. The alignment adjustment module 40 further includes a screen frame fixing unit 44 . The screen frame fixing unit 44 is disposed between the main body 41 and the screen frame 43 . The frame fixing unit 44 includes a frame driving part 441 , a frame positioning part 442 and a positioning adjusting part 443 . The screen frame driving part 441 is arranged on the body (41), the screen frame positioning part 442 is arranged on the screen frame 43, and the positioning adjustment part 443 is pivotally connected to the screen frame positioning part 442 and the screen frame driving part 441. The positioning adjustment part 443 adjusts the tightness of the screen frame positioning part 442 on the main body 41 according to the drive of the screen frame driving part 441 . Specifically, when the screen frame 43 is to be fine-tuned, the screen frame driver 441, such as a cylinder, is used to drive the positioning adjustment part 443 away from the screen frame positioning part 442, so that the screen frame 43 and the body 41 have a degree of adjustment activity. Conversely, if the screen frame 43 has been fine-tuned, in order to avoid the screen frame shifting during operation, the screen frame driver 441 is used to drive the positioning adjustment part 443 to closely lean against the screen frame positioning part 442, so that the screen frame The frame 43 and the body 41 form a fixed state, which can improve the effect of precise positioning.

After understanding the structure and operation of the alignment adjustment module 40, the alignment adjustment module 40 can better understand the actual operation mode of the present invention. Please also refer to FIG. 10, which is a schematic diagram of adjusting the position of the screen frame in the present invention. The present invention uses a charge-coupled device (CCD) alignment system to detect the position of the workpiece P to be printed to generate an alignment signal, and transmits the alignment signal to an external device (such as a computer, an intelligent electronic device), and the external device According to the alignment signal, the alignment adjustment module 40 is correspondingly controlled to adjust the position of the screen frame 43 . For example, the to-be-printed position of the workpiece is pattern A, and the pattern at the preset screen printing position is offset from A by 2mm, so the two XY axis adjustment components 42 of the X axis 421, 421' are driven to adjust, To adjust 2mm to the left. The first driver 4233 of the X-axis 421 drives the first shaft 4232 to pivot counterclockwise to drive the X-axis slider 4231 to slide and displace leftward along the X-axis on the X-axis slide rail 423; it is located on the side of the diagonal position The X-axis 421' of the upper part, the first driver 4233 drives the first shaft 4232 to pivot clockwise to drive the X-axis slider 4231 to slide leftward along the X-axis on the X-axis slide rail 423, so that It can be adjusted to be consistent with the position A to be printed. Of course, it is also the same operation principle to adjust the Y axis. It is worth noting that if there is an angle difference between the pattern to be printed and the screen printing pattern of the workpiece, fine adjustment of the horizontal rotation can also be performed, and the X and Y on the same axis can be driven clockwise or counterclockwise at the same time Therefore, the pivoting member 425 can pivot and operate correspondingly according to the sliding displacement of the X-axis sliding member 4231 and the Y-axis sliding member 4241 to achieve the effect of horizontal rotation.

Please refer to Fig. 11 and Fig. 12 to Fig. 16 at the same time. Fig. 11 is a flow chart of the steps of the first embodiment of the present invention; Fig. 12 to Fig. 16 is a schematic diagram of the operating state of the first embodiment of the present invention . As in step S10, a first vacuum workbench 10 and a second vacuum workbench 20 connected to each other are provided, and a first vacuum chamber 13 of the first vacuum workbench 10 and a second vacuum of the second vacuum workbench 20 are provided. The cavities 23 are connected. In step S11 , a pair of alignment adjustment modules 40 for adjusting the position of a screen frame 43 is provided, and the alignment adjustment modules 40 are located in the second vacuum cavity 23 . Coordinating with Figure 1, Figure 12, and Figure 13, as in step S12, the first working surface 11 is lifted to the material inlet and outlet accommodation space 121 through the refueling lifting module 60, and the first sealing member of the first working surface 11 is used 111 is closely against the extension part 124, so that the feeding and discharging accommodating space 121 and the first vacuum cavity 13. The second vacuum cavity 23 is in the state of being disconnected, ventilated and sealed. Open the cover 122 and place a first workpiece P1 on the first worktable 11 of the first vacuum workbench 10 through the opening 123. At this time, the first A second working surface 21 of the second vacuum working table 20 is located below a printing module 22 , and the printing module 22 is located in a second vacuum cavity 23 . Next, cover the opening 123 with the cover 122, and use the vacuum control module 50 to vacuumize the material inlet and outlet accommodating space 121 until the vacuum degree of the material inlet and outlet accommodating space 121 is the same as that of the first vacuum cavity 13, the second After the vacuum degree in the vacuum chamber 23 reaches the same level, the first working table 11 is lowered through the refueling lifting module 60 to move from the material inlet and outlet accommodating space 121 into the first vacuum chamber 13 .

As shown in FIG. 14 and step S13, use the first conveying unit 31 and the second conveying unit 32 to alternate the positions of the first working table 11 and the second working table 21, and move the first working table 11 to the position of the printing module 22 At the same time, the second working surface 21 moves to the lower part of a feeding and discharging module 12 of the first vacuum cavity 13 .

As in Figure 15 and step S14, adjust the position of the screen frame 43 to align the position to be printed on the first workpiece P1, the screen frame 43 is equipped with a screen S, and simultaneously place a second workpiece P2 on the second worktable (21) superior. In step S15 , after printing the first workpiece P1 , move and exchange the positions of the first work surface 11 and the second work surface 21 . As shown in FIG. 16 and step S16, the second workpiece P2 is printed, and at the same time, the first workpiece P1 on the first worktable 11 is refilled, and then returns to step S12, and the steps are repeated.

Please refer to Fig. 17, Fig. 18 and Fig. 19 for continuation. Fig. 17 is a structural sectional view of the second embodiment of the present invention; Fig. 18 is a schematic structural view of the transmission module of the present invention; Fig. 19 The figure is a schematic diagram of the double-mesa structure of the second embodiment of the present invention. Since the components, assembly method and operating principle of the double-stage vacuum printing device have been described in detail in the first embodiment, the second embodiment has the same components and the same reference numerals as the first embodiment, and the same parts No more details, only the differences are described here. The second embodiment is not equipped with the alignment adjustment module 40 , but is designed for the positioning function. The first vacuum workbench 10 and the second vacuum workbench 20 have the same structure as the first embodiment, the difference is that the bottom of the first workbench 11 has a first positioning part 112, and the second workbench 21 The bottom has a second positioning portion 212 . The double-stage vacuum printing device 200 includes a first table transmission module 70 and a second table transmission module 80 . The first worktable transmission module 70 is disposed on the first conveying unit 31 , and the first worktable transmission module 70 is used to carry the first worktable 11 . The first workbench transmission module 70 has a third positioning portion 71 , and the third positioning portion 71 cooperates with the first positioning portion 112 for mutual docking and positioning. The second worktable transmission module 80 is disposed on the second conveying unit 32 , and the second worktable transmission module 80 is used to support the second worktable 21 . The second workbench transmission module 80 has a fourth positioning portion 81 , and the fourth positioning portion 81 cooperates with the second positioning portion 212 for mutual docking and positioning. Through the alternate conveying operation of the first conveying unit 31 and the second conveying unit 32, the first worktable 11 and the second workbench 21 are placed in the storage space 121, the first vacuum chamber 13 and the second vacuum chamber. The 23 cycles alternately carry out the feeding and unloading of the two workpieces and the printing operation.

As shown in Fig. 20, it is a structural schematic diagram of the refueling lifting module according to the second embodiment of the present invention. The refueling lifting module 60 includes a refueling lifting driver 61 and a refueling carrier 62 . The refueling carrier 62 has a fifth positioning portion 621 , and the fifth positioning portion 621 cooperates with the first positioning portion 112 and the second positioning portion 212 for mutual docking and positioning. Since the first work surface (11) and the second work surface (21) share the refueling lifting module 60, in order to be used together and simplify the complexity of the structural design, the structural design of the fifth positioning part 621 is the same as that of the third positioning part 621. Part 71, the fourth positioning part 81 are the same, for example, the first positioning part 112, the second positioning part 212 are concave parts, then the fifth positioning part 621, the third positioning part 71, the fourth positioning part 81 are convex parts, by The concave-convex locking method can improve the stability of positioning, so that the first working surface 11 and the second working surface 21 will not have problems of inclination or offset during the conveying process. The refueling lifting driver 61 is coupled to the refueling carrier 62. The refueling lifting driver 61 is used to drive the refueling carrier 62 to lift and descend. The refueling carrier 62 is used to carry the first working surface 11 and the second working surface. twenty one.

As shown in Fig. 21, it is a schematic structural diagram of the enhanced lifting module according to the second embodiment of the present invention. The double-stage vacuum printing device 200 further includes a strengthening lifting module 90 disposed in the second vacuum chamber 23 of the second vacuum table 20 . The strengthening lifting module 90 includes a strengthening lifting driver 91 and a top Brace 92. The enhanced lifting driver 91 is coupled to the support member 92 , and the enhanced lift driver 91 is used to drive the support member 92 to lift and descend. Since the width configurations of the first conveying unit 31 and the second conveying unit 32 are different, the track width of the first conveying unit 31 that allows the first work surface 11 to straddle the double track will be greater than the track width of the second work surface 21, Therefore, using the support member 92 of the lifting driver 91 to strengthen the stress on the worktable during printing can effectively avoid the problem of the central part of the workpiece being sunken during printing.

The structural composition and operating principle of the double-table vacuum printing device 200 following the above-mentioned second embodiment, please refer to FIG. 21 , which is a flow chart of the steps of the second embodiment of the present invention. As in step S20, a first vacuum workbench 10 and a second vacuum workbench 20 connected to each other are provided, and a first vacuum cavity 13 of the first vacuum workbench 10 and a second vacuum of the second vacuum workbench 20 are provided. The cavities 23 are connected. In step S21 , a first worktable transmission module 70 and a second worktable transmission module 80 are provided to carry and position the first worktable 11 and the second worktable 21 respectively. As in step S22, before placing a first workpiece P1 on a first worktable 11 of the first vacuum workbench 10, use the refueling lifting module 60 to position and fix the first workbench 11; the second vacuum workbench A second working platform 21 of 20 is located under a printing module 22 , and the printing module 22 is located in a second vacuum cavity 23 . In step S23 , the first worktable transmission module 70 is moved to the bottom of the printing module 22 , and the second worktable transmission module 80 is moved to the bottom of a feeding and discharging module 12 of the first vacuum cavity 13 . As in step S24 , when printing the first workpiece P1 , the enhanced lifting driver 91 can be used to drive the support member 92 to lift and support the first worktable 11 , so as to strengthen the stress on the first worktable during printing. At this time, the second worktable 21 moves to the bottom of a feeding and discharging module 12 of the first vacuum chamber 13 , and simultaneously places a second workpiece P2 on the second worktable 21 . In step S25 , after printing the first workpiece P1 , move and exchange the positions of the first worktable transmission module 70 and the second worktable transmission module 80 . In step S26, the second workpiece P2 is printed, and at the same time, the first workpiece P1 on the first worktable 11 is refilled, and then returns to step S22, and the steps are repeated.

Continue please refer to Fig. 23 and Fig. 24 at the same time. Fig. 22 is a structural sectional view of the third embodiment of the present invention; Fig. 23 is a flow chart of the steps of the third embodiment of the present invention. The third embodiment combines the structures and functions of the first embodiment and the second embodiment, and the double-stage vacuum printing device 300 can be applied to integrate functions according to industrial requirements. The third embodiment includes an alignment adjustment module that can adjust the position of the screen frame in the X-axis, Y-axis and horizontal rotation, and the positioning structure can improve the stability of the working table during the conveying process. Since the composition of all elements and the corresponding operating principles and functions are described in detail in the first embodiment and the second embodiment, the third embodiment, the second embodiment, and the first embodiment have the same elements and the same symbols, And the same part will not be repeated. In order to specifically describe the application method after the functional integration of the third embodiment, only the actual operation steps are described here. The double-table vacuum printing method includes step S30, providing a first vacuum table 10 and a second vacuum table 20 connected, a first vacuum cavity 13 of the first vacuum table 10 and the second vacuum table 20 A second vacuum cavity 23 is connected. In step S31 , a first worktable transmission module 70 and a second worktable transmission module 80 are provided to carry and position the first worktable 11 and the second worktable 21 respectively.

In step S32 , a pair of alignment adjustment modules 40 for adjusting the position of a screen frame 43 is provided, and the alignment adjustment modules 40 are located in the second vacuum cavity 23 . As in step S33, before placing a first workpiece P1 on a first worktable 11 of the first vacuum workbench 10, use the refueling lifting module 60 to position and fix the first workbench 11 correspondingly; the second vacuum workbench A second working platform 21 of 20 is located under a printing module 22 , and the printing module 22 is located in a second vacuum cavity 23 . In step S34 , the first worktable transmission module 70 is moved to the bottom of the printing module 22 , and the second worktable transmission module 80 is moved to the bottom of a feeding and discharging module 12 of the first vacuum cavity 13 .

As in step S35, use a charge-coupled device (CCD) alignment system to detect the position to be printed on the first workpiece P1 to generate an alignment signal, and transmit the alignment signal to an external device, and the external device controls the alignment accordingly according to the alignment signal The adjustment module 40 adjusts the position of the screen frame 43 to align the position to be printed on the first workpiece P1. The screen frame 43 is equipped with a screen S, and the pattern to be printed on the first workpiece P1 is adjusted to the The screen printing patterns are consistent, and a second workpiece P2 is placed on the second worktable 21 at the same time. As in step S36 , when printing the first workpiece P1 , the enhanced lifting driver 91 can be used to drive the supporting member 92 to lift up on the first work surface 11 to strengthen the stress on the first work surface during printing. After the first workpiece P1 is printed, the positions of the first worktable transmission module 70 and the second worktable transmission module 80 are moved and exchanged. In step S37, the second workpiece P2 is printed, and at the same time, the first workpiece P1 on the first worktable 11 is refilled, and then returns to step S33, and the steps are repeated.

Looking at the above, it can be seen that the present invention breaks through the previous technology, provides a double-table vacuum printing device and its method, and designs a novel alignment adjustment module, which can perform X-axis, Y-axis and horizontal rotation on the position of the screen frame The adjustment mode enables the screen plate on the screen frame to correct the position of the alignment workpiece to be printed, so as to improve the printing accuracy and effectively improve the product yield. By making fine adjustments on the screen frame, there is no need to occupy the configuration space in the vacuum chamber, and there is no need to consider the wiring problem with high technical difficulty, which can not only effectively reduce the production cost and improve the ease of operation, but the present invention uses the electronic control system to Control the operation of the alignment adjustment module, and at the same time remember the previous calibration records to make the application more intelligent.

Furthermore, the present invention improves the overall structure to achieve operational stability and accuracy. It also designs a positioning structure that can improve the stability of the worktable during transportation, and has a structural design that strengthens the function of supporting the supporting structure. The degree of stress on the worktable during printing can effectively avoid the problem of the central part of the workpiece being sunken during printing. Furthermore, two conveying units with different heights and widths are used to convey two vacuum workbenches respectively, and the two workpieces are fed in and out and vacuum printed in an alternate cycle, and the refueling lifting module is shared for airtight refueling , and the printing time is greater than or equal to the material replacement time, which can effectively save manufacturing costs and solve device idle time, thereby improving production efficiency. The present invention not only enhances the application flexibility but also possesses multiple functions. It has indeed achieved the desired effect, and it is not easy for those who are familiar with this technology to think about it. Furthermore, the invention has not been published before the application, and its progressiveness and practicality obviously meet the requirements for patent application. I file a patent application in accordance with the law, and I sincerely ask your bureau to approve this application for a patent for invention, so as to encourage invention, and I am grateful for it.

The above-described embodiments are only to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those skilled in this art to understand the content of the present invention and implement it accordingly, and should not limit the patent scope of the present invention. That is to say, all equivalent changes or modifications made according to the spirit disclosed in the present invention should still be covered by the patent scope of the present invention.

100:Double table vacuum printing device

10: The first vacuum table

11: First work surface

111: first seal

12: Inlet and outfeed module

121: storage space for material in and out

122: cover body

123: opening

124: Extension

13: The first vacuum chamber

20: The second vacuum table

21: Second work surface

211:Second seal

22: Printing module

221: Printed parts

222: Printing Lifting Die

223: Printing drive

23: The second vacuum chamber

30: Conveyor module

31: The first conveying unit

32: Second conveying unit

40: Alignment adjustment module

41: Ontology

42: XY axis adjustment components

43: screen frame

50: Vacuum control module

60: Refueling lift module

Claims (9)

A double-table vacuum printing device, comprising: a first vacuum workbench (10), including a first workbench (11), a feeding and discharging module (12) connected to the first workbench (11), and a The first vacuum chamber (13), the inlet and outlet module (12) includes an inlet and outlet accommodating space (121), and the inlet and outlet accommodating space (121) communicates with the first vacuum chamber (13); A second vacuum workbench (20), which is connected to the first vacuum workbench (10), and the second vacuum workbench (20) includes a second workbench (21), a printing module (22) and a A second vacuum chamber (23), the printing module (22) is located above the second worktable (21), and the second vacuum chamber (23) communicates with the first vacuum chamber (13); The conveying module (30) is arranged in the first vacuum table (10) and the second vacuum table (20), and the conveying module (30) includes a first conveying unit configured with different heights and widths (31) and a second conveying unit (32), the first conveying unit (31) is used to convey the first work surface (11) back and forth, and the second conveying unit (32) is used to convey the second The worktable (21) operates; a pair of alignment adjustment modules (40) are arranged between the second worktable (21) and the printing module (22), and the alignment adjustment module (40) includes a body (41), at least three sets of XY axis adjustment components (42) and a screen frame (43), the three sets of XY axis adjustment components (42) are respectively arranged on the sides of the body (41) at different positions, the screen frame ( 43) Installed on the body (41), three sets of the XY axis adjustment components (42) are used to adjust the linear displacement and horizontal rotation of the screen frame (43) in the X axis and Y axis, and the screen frame (43 ) for installing a screen (S); and a vacuum control module (50), arranged between the first vacuum table (10) and the second vacuum table (20), the vacuum control module The group (50) is used to control the vacuum state and vacuum breaking state inside the material inlet and outlet accommodating space (121), and maintain the vacuum state of the first vacuum chamber (13) and the second vacuum chamber (23); wherein , through the alternate conveying operation of the first conveying unit (31) and the second conveying unit (32), the first worktable (11) and the second worktable (21) are placed in the material-in and out-of-accommodating space (121), the first vacuum chamber (13) and the second vacuum chamber (23) alternately carry out the feeding and discharging and printing operations of the two workpieces; The alignment adjustment module (40) further includes a screen frame fixing unit (44), which is arranged between the body (41) and the screen frame (43), and the screen frame fixing unit (44) includes: a screen frame drive Part (441), is arranged on this main body (41); A screen frame positioner (442), is arranged on this screen frame (43); part (442) and the screen frame driving part (441), the positioning adjustment part (443) is to adjust the screen frame positioning part (442) on the body (41) according to the drive of the screen frame driving part (441) on the tightness. The double-stage vacuum printing device as described in claim 1, wherein the three sets of XY axis adjustment components (42) include one XY axis adjustment component for the X axis (421) and two Y axis (422) adjustment components The XY axis adjustment assembly, the XY axis (421) and the Y axis (422) are arranged on the same side and opposite ends of the body (41), two of the Y axis (422 ) are respectively arranged on the diagonal position side of the body (41). The double-stage vacuum printing device as described in Claim 1, wherein when the XY axis adjustment components (42) are in four groups, it is divided into two XY axis adjustments in the X axis (421) and two Y axes (422) Assemblies, the aforementioned XY-axis adjustment assemblies are respectively arranged on the four sides of the body (41), two of the X-axis (421) are respectively arranged on the sides of the diagonal position of the body (41), and two of the The Y-axis (422) is respectively arranged on the side of the diagonal line of the body (41), and the XY-axis adjustment components of the X-axis (421) and the Y-axis (422) are arranged on the body (41) The same side and opposite ends. The double-table vacuum printing device as described in claim 1, wherein the XY axis adjustment assembly (42) includes: an X axis slide rail (423), on which an X axis slider (4231), a first axis part (4232) and a first driver (4233), the first driver (4233) is coupled to the first shaft part (4232), the X-axis sliding part (4231) is connected to the first shaft part (4232), the The first driver (4233) is used to drive the first shaft (4232) to move and drive the X-axis slider (4231) to slide and displace along the X-axis on the X-axis slide rail (423); a Y-axis slide Rail (424), on which a Y-axis slide (4241), a second shaft (4242) and a second driver (4243) are mounted, and the second driver (4243) is coupled to the second shaft ( 4242), the Y-axis slider (4241) The second shaft (4242) is connected, and the second driver (4243) is used to drive the second shaft (4242) to move and drive the Y-axis slide (4241) on the upper edge of the Y-axis slide rail (424). and a pivoting member (425), which is pivotally connected to the X-axis sliding member (4231) and the Y-axis sliding member (4241), and the pivoting member (425) slides according to the X-axis The sliding displacement of the member (4231) and the Y-axis sliding member (4241) and corresponding pivotal operation. The double-stage vacuum printing device as described in claim 1, wherein the screen frame (43) includes a screen clamping module (431), and the screen clamping module (431) includes a clamping member (4311) With a clamping adjustment piece (4312), the clamping adjustment piece (4312) is connected with the clamping piece (4311), the clamping piece (4311) is used to clamp the screen plate (S), and the clamping adjustment piece (4312) is used for adjusting the tightness of the clamping part (4311) clamping the screen plate (S). The double-table vacuum printing device as described in claim 1, further comprising a refueling lifting module (60), which is arranged on the first vacuum table (10), and the refueling lifting module (60) is used to lift the The first work surface (11) and the second work surface (21) enter the material inlet and outlet accommodating space (121), and are used to lower the first work surface (11) and the second work surface (21) from the The material inlet and outlet accommodating space (121) moves into the first vacuum chamber (13); wherein the inlet and outlet module (12) further includes a cover (122), an opening (123) and an extension ( 124), the extension (124) is arranged on the outer periphery of the material inlet and outlet accommodating space (121), the opening (123) communicates with the material inlet and outlet accommodating space (121), and the cover (122) is used for Covering the opening (123), a first sealing member (111) is provided on the upper ring of the first working surface (11), and a second sealing member (211) is provided on the upper ring of the second working surface (21). The first sealing member (111) and the position of the second seal (211) are corresponding to the extension (124), through the first seal (111) and the second seal (211) and the extension (124) close contact with each other, so that the accommodating space (121) and the first vacuum cavity (13) are in an airtight state without communication with each other. The double-table vacuum printing device as described in claim 1, wherein the printing module (22) includes a printing member (221), a printing lifting module (222) and a printing drive (223), and the printing lifting module The group (222) is used to control the moving and lifting operation of the printing member (221), and the printing drive (223) is used to control the printing swing operation of the printing member (221). A double-table vacuum printing method is applicable to a double-table vacuum printing device as described in claim 1, and the double-table vacuum printing method at least includes the following steps: Step S10: providing the connected first vacuum table (10 ) and the second vacuum table (20), the first vacuum chamber (13) of the first vacuum table (10) and the second vacuum chamber (23) of the second vacuum table (20) ) are connected; step S11: provide the alignment adjustment module (40) for adjusting the position of the screen frame (43), the alignment adjustment module (40) is located in the second vacuum chamber (23); Step S12: placing a first workpiece (P1) on the first worktable (11) of the first vacuum workbench (10), the second workbench (21) of the second vacuum workbench (20) Located below the printing module (22), the printing module (22) is located in the second vacuum cavity (23); step S13: moving the first worktable (11) to the side of the printing module (22) At the same time, the second worktable (21) moves below the feeding and discharging module (12) of the first vacuum chamber (13); Step S14: Adjust the position of the screen frame (43) to align the first The position to be printed of the workpiece (P1), the screen frame (43) is equipped with a screen plate (S), and a second workpiece (P2) is placed on the second worktable (21) at the same time; step S15: in printing the After the first workpiece (P1), move and exchange the positions of the first worktable (11) and the second worktable (21); and step S16: print the second workpiece (P2), and simultaneously print the first worktable The first workpiece (P1) on the table (11) is refueled, and returns to step S12. The double-table vacuum printing method as described in claim 8, wherein in the step S14, a charge-coupled device (CCD) alignment system is used to detect the position to be printed of the first workpiece (P1) to generate a pair of position signal, and transmit the position signal to an external device, and the external device controls the position adjustment module (40) to adjust the position of the screen frame (43) according to the position signal; wherein the position adjustment The module (40) includes an adjustment mode for carrying out X-axis, Y-axis and horizontal rotation to the position of the screen frame (43); wherein in the step of the step S16, the printing time is greater than or equal to the refueling time The time; wherein in the step of the step S16, the first workpiece (P1) further includes a vacuum breaking step when refueling, the feeding and discharging module (12) has the feeding and discharging accommodating space (121), Utilize the first working surface (11) to block the material inlet and outlet accommodating space (121) and the first vacuum cavity (13), so that the first workpiece (P1) appears in the material inlet and outlet accommodating space (121) Refueling is performed in a broken vacuum state, and the first vacuum chamber (13) and the second vacuum chamber (23) maintain a vacuum state.

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