Die transfer screen printer

Abstract

This application relates to a bare film conveying screen printing machine, comprising: a frame; a turntable module disposed in the middle of the frame, the turntable module having four material receiving platforms distributed circumferentially, the four material receiving platforms switching sequentially between loading / unloading positions, positioning positions, screen printing positions, and temporary storage positions as the turntable module rotates; a feeding module and an output module disposed on the frame on the side of the positioning position relative to the temporary storage position in a first direction opposite to the positioning position and the temporary storage position of the turntable module; and a loading / unloading robot module and a screen printing module disposed on the frame on the side of the loading / unloading positions relative to the screen printing positions in a second direction opposite to the loading / unloading positions and the screen printing positions of the turntable module. All processes of this bare film conveying screen printing machine are distributed around the frame and the turntable module, resulting in a compact overall layout, smooth connections, and small space occupation. Furthermore, it allows for point-to-point conveying of bare film, reducing the risk of scratches on the film, improving product yield, and reducing overall energy consumption.

Description

Technical Field

[0001] This application relates to screen printing equipment, and more specifically, to a bare film conveying screen printing machine. Background Technology

[0002] With the increasing maturity and development of screen printing technology, its application areas are constantly expanding. High-precision printing fields, such as window glass, solar crystalline silicon cells, PCB circuit boards, LCD displays, touch panels, and various touch screens, also widely employ screen printing. After screen printing, these substrates must be baked to ensure the printed pattern dries quickly and prevents sticking, which would damage the print quality. To facilitate subsequent baking processes, existing fully automatic rotary screen printing machines use baking trays as carriers for substrate transport. Multiple substrates are placed in a single tray, which is relatively large. Therefore, a tray feeding mechanism is often used on one side of the screen printing machine, resulting in a less compact overall structure. Furthermore, substrates transported by baking trays are easily scratched, leading to a high defect rate. The entire tray entering the oven consumes heat, resulting in relatively high overall energy consumption. Utility Model Content

[0003] The technical problem to be solved by this application is to provide a compact die-carrying screen printing machine that addresses the aforementioned deficiencies of the prior art.

[0004] The technical solution adopted by this application to solve its technical problem is as follows: a bare film conveying screen printing machine is proposed, comprising: a frame; a turntable module disposed in the middle of the frame, wherein the turntable module has four material receiving platforms distributed circumferentially, and the four material receiving platforms switch sequentially between loading / unloading positions, positioning positions, screen printing positions, and temporary storage positions as the turntable module rotates; a feeding module and an unloading module disposed on the frame on the side of the positioning position relative to the temporary storage position in a first direction opposite to the positioning position and the temporary storage position of the turntable module; a loading / unloading robot module and a screen printing module disposed on the frame on the side of the loading / unloading positions relative to the screen printing positions in a second direction opposite to the loading / unloading positions and the screen printing positions of the turntable module; wherein the feeding module is provided with multiple feeding and unloading plates distributed along the second direction and a feeding support plate that can reciprocate between the multiple feeding and unloading plates along the second direction and can be raised and lowered relative to the multiple feeding and unloading plates, wherein the multiple feeding and unloading plates are closest to the loading / unloading robot module. The feeding and unloading plate of the module is the loading position, the feeding plate furthest from the loading / unloading robot module is the feeding position, and the middle one is the feeding storage position; the discharging module has multiple discharging plates distributed along the second direction and a discharging support plate that can reciprocate between the multiple discharging plates along the second direction and can be raised and lowered relative to the multiple discharging plates. The discharging plate closest to the loading / unloading robot module is the unloading position, the discharging plate furthest from the loading / unloading robot module is the discharging position, and the middle one is the discharging storage position; the loading / unloading robot module has a first robot and a second robot that move synchronously along the first direction to switch between a first position and a second position. While the first robot moves from the first position to the second position to transfer the substrate to be printed on the loading position of the feeding module to the loading / unloading position of the turntable module, the second robot transfers the printed substrate on the loading / unloading position of the turntable module to the unloading position of the discharging module.

[0005] According to one embodiment of the bare film conveying screen printing machine described in this application, the feeding module and the discharging module have the same structure, each including a first mounting beam and a second mounting beam extending parallel to a second direction and supported on the frame. The plurality of feeding / discharging plates are sequentially fixed on the first mounting beam and the second mounting beam. The machine also includes a first linear guide rail extending in the second direction installed below the plurality of feeding / discharging plates, a cylinder slidably installed on the first linear guide rail, and a first driving assembly for driving the cylinder to move along the first linear guide rail. The feeding / discharging plate is fixed to the output end of the cylinder so as to move along the first linear guide rail with the cylinder and can be lifted and lowered by the cylinder.

[0006] According to one embodiment of the bare film conveying screen printing machine described in this application, each of the plurality of feed plates / output plates is provided with clearance holes for the feed support plate / output support plate to rise and fall, and clearance grooves for the feed support plate / output support plate to move in a second direction.

[0007] According to one embodiment of the bare film conveying screen printing machine described in this application, the feed support plate / output support plate is provided with a connecting column that is fixedly connected to the output end of the cylinder, the clearance hole has a shape corresponding to the feed support plate / output support plate, and the clearance groove corresponds to the width of the connecting column.

[0008] According to one embodiment of the bare film conveying screen printing machine described in this application, the first driving component is a belt drive component, including a driving wheel and a driven wheel respectively disposed at both ends in a second direction below the plurality of feed plates / discharge plates, a transmission belt sleeved on the driving wheel and the driven wheel, and a motor that drives the driving wheel to rotate. The cylinder is fixedly connected to the transmission belt so as to be driven by the transmission belt to move along the first linear guide rail.

[0009] In one embodiment of the bare film conveying screen printing machine according to this application, the plurality of feed plates, feed support plates, plurality of discharge plates, discharge support plates, and the four material receiving platforms on the turntable module are all fixed to the substrate by vacuum adsorption.

[0010] According to one embodiment of the bare film conveying screen printing machine described in this application, the frame is further provided with a positioning mechanism that cooperates with the material receiving platform below the positioning position corresponding to the turntable module.

[0011] According to one embodiment of the bare film conveying screen printing machine of this application, the loading and unloading robot module includes a crossbeam extending in a first direction supported on the frame and a second linear guide rail extending in the first direction disposed on the crossbeam, wherein the first robot and the second robot are slidably mounted on the second linear guide rail; the loading and unloading robot module further includes a second drive component that drives the first robot and the second robot to move synchronously along the second linear guide rail.

[0012] In one embodiment of the bare film conveying screen printing machine according to this application, the second drive component is a belt drive component.

[0013] According to one embodiment of the bare film conveying screen printing machine described in this application, the plurality of feed plates / discharge plates have two feed storage positions / discharge storage positions.

[0014] The bare film conveying screen printing machine according to this application has the following beneficial effects: The bare film conveying screen printing machine according to the embodiments of this application has loading / unloading positions, positioning positions, screen printing positions, and temporary storage positions arranged sequentially along the circumference of the turntable module. Feeding modules and discharging modules are respectively arranged on both sides of the positioning positions and temporary storage positions. Loading / unloading robot modules and screen printing modules are respectively arranged on both sides of the loading / unloading positions and screen printing positions. The substrate is directly fed from one side of the frame along the feeding module to the opposite side, and then fed into the loading / unloading positions on the turntable module by the first robot of the loading / unloading robot module. The module sequentially passes through the positioning position for positioning, the screen printing position for printing, the temporary storage position for temporary storage, and then returns to the loading and unloading position. The second robot arm of the loading and unloading robot module then sends it out to the unloading module on the opposite side of the feeding module. From there, it is directly discharged from the same side of the frame along the unloading module. All processes are distributed around the frame and turntable module, resulting in a compact overall layout, smooth connections, and small space occupation. Moreover, this bare film conveying screen printing machine can perform point-to-point transmission of the bare film, reducing the risk of scratching the substrate, improving product yield, and reducing overall energy consumption. Attached Figure Description

[0015] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a bare film conveying screen printing machine according to an embodiment of this application;

[0017] Figure 2 yes Figure 1 The diagram shows a plan view of a bare film conveying screen printing machine.

[0018] Figure 3 This is a schematic diagram of the feeding module in one embodiment of this application.

[0019] Explanation of reference numerals: 100 - Bare film conveyor screen printing machine;

[0020] 10-Frame; 20-Turntable module; 21-First material receiving platform; 22-Second material receiving platform; 23-Third material receiving platform; 24-Fourth material receiving platform; 30-Feeding module; 311-First feeding and unloading plate; 312-Second feeding and unloading plate; 313-Third feeding and unloading plate; 314-Fourth feeding and unloading plate; 315-Allowing hole; 316-Allowing groove; 32-Feeding support plate; 321-Connecting column; 331-First mounting beam; 332-Second mounting beam; 34 - Support column; 35- Cylinder; 351- Slider; 36- First linear guide rail; 37- Motor; 381- Driving wheel; 382- Driven wheel; 39- Transmission belt; 40- Discharge module; 41- First discharge plate; 412- Second discharge plate; 413- Third discharge plate; 414- Fourth discharge plate; 42- Discharge support plate; 50- Loading and unloading robot module; 51- Crossbeam; 52- First robot; 53- Second robot; 60- Screen printing module. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the embodiments and features described herein can be combined with each other unless otherwise specified.

[0022] Figure 1 A schematic diagram of the overall structure of a bare film conveying screen printing machine 100 according to an embodiment of this application is shown. Figure 2 This is a schematic diagram of its floor plan. See also... Figure 1 and Figure 2 As shown, the bare film conveying screen printing machine 100 mainly consists of a frame 10, a turntable module 20, a feeding module 30, a discharging module 40, a loading / unloading robotic arm module 50, and a screen printing module 60. The frame 10 is generally square, with the turntable module 20 located in the center. The turntable module 20 has four circumferentially distributed material-bearing platforms: a first material-bearing platform 21, a second material-bearing platform 22, a third material-bearing platform 23, and a fourth material-bearing platform 24. These four material-bearing platforms switch sequentially between the loading / unloading position, the positioning position, the screen printing position, and the temporary storage position as the turntable module 20 rotates. The feeding module 30 and the discharging module 40 are respectively located on the frame 10 in the first direction opposite to the positioning position and the temporary storage position of the turntable module 20 (i.e.,...). Figure 2 On the left and right sides of the turntable module 20, the feeding module 30 is positioned near the positioning position, and the discharging module 40 is positioned near the temporary storage position. The loading / unloading robot module 50 and the screen printing module 60 are respectively positioned on the second direction (i.e., opposite to the loading / unloading position and the screen printing position) of the turntable module 20 on the frame 10. Figure 2On both sides of the front-to-back direction of the screen printing machine 100, the loading / unloading robot module 50 is set on the side near the loading / unloading position, and the screen printing module 60 is set on the side near the screen printing position. With this layout, all processes of the bare film conveying screen printing machine 100 are distributed around the frame 10 and the turntable module 20. The overall structure is compact, the connection is smooth, and it occupies little space.

[0023] See details Figure 2 As shown, the feeding module 30 has four feeding and unloading plates: a first feeding and unloading plate 311, a second feeding and unloading plate 312, a third feeding and unloading plate 313, and a fourth feeding and unloading plate 314, which are used to place the substrates to be printed. These four feeding and unloading plates 311-314 are distributed sequentially along the second direction. The fourth feeding and unloading plate 314, closest to the loading / unloading robot module 50, is the loading position; the first feeding and unloading plate 311, furthest from the loading / unloading robot module 50, is the feeding position; and the second feeding and unloading plate 312 and the third feeding and unloading plate 313 are both feeding and storage positions. According to different embodiments of this application, the number of feeding and storage positions can be adjusted as needed to ensure smooth transitions between different processes. The feeding module 30 is also equipped with a feeding support plate 32, which can reciprocate between the four feeding and unloading plates 311-314 along a second direction and can be raised and lowered relative to the four feeding and unloading plates 311-314. Thus, after the substrate to be printed at the upper station is fed onto the first feeding and unloading plate 311 at the feeding position of the feeding module 30, the feeding support plate 32 rises to lift the substrate to be printed and deliver it to the fourth feeding and unloading plate 314 at the loading position, then descends to place the substrate on the fourth feeding and unloading plate 314, and then returns to the feeding position to prepare for conveying the next substrate to be printed. The second feeding and unloading plate 312 and the third feeding and unloading plate 313 are used to temporarily store substrates to be printed, to replenish them when the substrates to be printed on the first feeding and unloading plate 311 are unavailable.

[0024] According to a specific embodiment of this application, see Figure 3As shown, the feeding module 30 includes a first mounting beam 331 and a second mounting beam 332 supported on the frame 10 by multiple support columns 34. The first mounting beam 331 and the second mounting beam 332 extend parallel to each other along a second direction, and the four feeding and discharging plates 311-314 are sequentially fixed on the first mounting beam 331 and the second mounting beam 332. The feeding module 30 also includes a cylinder 35, a first linear guide rail 36, a motor 37, a drive wheel 381, a driven wheel 382, ​​and a transmission belt 39. The first linear guide rail 36 is mounted on the frame 10 below the four feeding and discharging plates 311-314 and extends along the second direction. The cylinder 35 has a slider 351 that is slidably mounted on the first linear guide rail 36. The motor 37, the drive wheel 381, the driven wheel 382, ​​and the transmission belt 39 constitute a belt drive assembly for driving the cylinder 35 to move along the first linear guide rail 36. Specifically, the driving wheel 381 and driven wheel 382 are respectively located at both ends in the second direction below the four feed and discharge plates 311-314. A transmission belt 39 (e.g., a belt) is sleeved on the driving wheel 381 and driven wheel 382. A motor 37 is coaxially connected to the driving wheel 381, driving the driving wheel 381 to rotate, which in turn drives the transmission belt 39. A cylinder 35 is fixedly connected to one side of the transmission belt 39, allowing it to reciprocate along the first linear guide rail 36 driven by the transmission belt 39. See also... Figure 3 As shown, the bottom of the feeding support plate 32 is provided with a connecting post 321, which is fixedly connected to the output end of the cylinder 35, so that it can move along the first linear guide rail 36 together with the cylinder 35 and can be driven by the cylinder 35 to rise and fall. For this purpose, each of the four feeding and discharging plates 311 to 314 is provided with a clearance hole 315 for the raising and lowering of the feeding support plate 32 and a clearance groove 316 for the feeding support plate 32 to move in the second direction. The clearance hole 315 may have a shape corresponding to the feeding support plate 32, and the width of the clearance groove 316 corresponds to the width of the connecting post 321 to allow the connecting post 321 to pass through.

[0025] See also Figure 2As shown, the structure of the discharge module 40 is exactly the same as that of the feeding module 30, except that the feeding direction is opposite to that of the feeding module 30. The discharge module 40 is provided with four discharge plates arranged sequentially along the second direction, namely the first discharge plate 411, the second discharge plate 412, the third discharge plate 413, and the fourth discharge plate 414. Among them, the first discharge plate 411, which is closest to the loading / unloading robot module 50, is the unloading position, the fourth discharge plate 414, which is furthest from the loading / unloading robot module 50, is the discharge position, and the second discharge plate 412 and the third discharge plate 413 in the middle are both discharge storage positions. Similarly, according to different embodiments of this application, the number of discharge storage positions can be adjusted as needed to ensure smooth connection between various processes. The discharge module 40 is also provided with a discharge support plate 42, which can reciprocate between the four discharge plates 411-414 along the second direction and can be raised and lowered relative to the four discharge plates 411-414. In this way, after the printed substrate is fed into the first feed plate 411 of the unloading position of the discharge module 40, the discharge support plate 42 rises to lift the printed substrate and send it to the fourth discharge plate 414 of the discharge position, then lowers to place the printed substrate on the fourth discharge plate 414, and then returns to the unloading position to prepare for the transfer of the next printed substrate.

[0026] The loading / unloading robotic arm module 50 includes a first robotic arm 53 and a second robotic arm 54 that move synchronously along a first direction to switch between a first position and a second position. See specifically... Figure 2 As shown, the loading / unloading robot module 50 includes a crossbeam 51 extending in a first direction supported on the frame 10 and a second linear guide rail 52 extending in the first direction disposed on the crossbeam 51. A first robot 53 and a second robot 54 are slidably mounted on the second linear guide rail 52. A second drive assembly (not visible in the figure) is also provided inside the crossbeam 51 to drive the first robot 53 and the second robot 54 to move synchronously along the second linear guide rail 52. In specific implementation, the second drive assembly can also be implemented by a belt drive assembly or other suitable linear motion transmission assembly in the prior art. In the first position, the first robot 53 faces the loading position of the feeding module 30, and the second robot 54 faces the loading / unloading position of the turntable module 20; in the second position, the first robot 53 faces the loading / unloading position of the turntable module 20, and the second robot 54 faces the unloading position of the discharging module 40. The first robotic arm 53 moves from the first position to the second position, transferring the substrate to be printed from the loading position of the feeding module 30 to the unloading position of the turntable module 20. Simultaneously, the second robotic arm 54 transfers the printed substrate from the unloading position of the turntable module 20 to the unloading position of the discharging module 40. Then, the first robotic arm 53 and the second robotic arm 54 synchronously reset. This process repeats, enabling the loading and unloading robotic arm module 50 to connect the feeding module 30, the turntable module 20, and the discharging module 40.

[0027] After the first robot 53 of the loading / unloading robot module 50 delivers the substrate to be printed from the loading position of the feeding module 30 to the corresponding receiving platform of the loading / unloading position of the turntable module 20, the turntable module 20 carries the substrate sequentially through the positioning position for positioning, the screen printing position for printing, the temporary storage position for temporary storage, and then returns to the loading / unloading position. The second robot 54 of the loading / unloading robot module 50 then delivers the printed substrate to the unloading position of the discharge module 40, and then sends it out along the discharge module 40. A positioning mechanism (not visible in the figure) is provided on the frame 10 below the positioning position corresponding to the turntable module 20, which cooperates with the receiving platforms 21-24. This mechanism is used to accurately position the substrate on the receiving platform of the positioning position. The screen printing module 60 is used to screen print the substrate on the receiving platform of the screen printing position. The specific implementation of the positioning mechanism and the screen printing module 60 is prior art and will not be described in detail in this application.

[0028] In the bare film conveying screen printing machine 100 according to the above embodiments of this application, see... Figure 2 As shown by the middle arrow, the substrate to be printed is directly fed from the front left side of the frame 10 to the rear left side along the feeding module 30. Then, the first robot 53 of the loading and unloading robot module 50 feeds it into the loading and unloading position of the turntable module 20. The turntable module 20 carries it sequentially through the positioning position for positioning, the screen printing position for printing, the temporary storage position for temporary storage, and then back to the loading and unloading position. The second robot 54 of the loading and unloading robot module 50 then sends it out to the unloading position of the discharge module 30 on the rear right side. Then, it is directly discharged from the front right side of the frame 10 along the discharge module 30. All processes are distributed around the frame 10 and the turntable module 20. The overall layout is compact, the connection is smooth, and the space occupied is small. In practice, the multiple feed plates 311-314, the feed support plate 32, the multiple discharge plates 411-414, the discharge support plate 42, and the four material-bearing platforms 21-24 on the turntable module 20 all use vacuum adsorption to fix the substrate. This bare film conveying screen printing machine 100 can perform point-to-point conveying of bare substrates, reducing the risk of scratches on the substrates, improving product yield, and reducing overall energy consumption. This bare film conveying screen printing machine 100 is particularly suitable for screen printing on small and medium-sized substrates such as glass for mobile phones and tablets.

[0029] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bare film conveying screen printing machine, characterized in that, include: frame; The turntable module is located in the middle of the frame. The turntable module has four material-bearing platforms distributed around its circumference. As the turntable module rotates, the four material-bearing platforms switch sequentially between loading / unloading positions, positioning positions, screen printing positions, and temporary storage positions. The feeding module and the discharging module are located on the first direction opposite to the positioning position and the temporary storage position of the turntable module on the frame, respectively. The loading and unloading robot module and the screen printing module are arranged on the second direction opposite to the loading and unloading positions and the screen printing position of the turntable module on the frame. The feeding module includes multiple feeding and discharging plates distributed along a second direction and a feeding support plate that can reciprocate between the multiple feeding and discharging plates along the second direction and can be raised and lowered relative to the multiple feeding and discharging plates. Among the multiple feeding and discharging plates, the feeding and discharging plate closest to the loading and unloading robot module is the loading position, the feeding and discharging plate furthest from the loading and unloading robot module is the feeding position, and the middle one is the feeding storage position. The discharging module includes multiple discharging and discharging plates distributed along a second direction and a discharging support plate that can reciprocate between the multiple discharging and discharging plates along the second direction and can be raised and lowered relative to the multiple discharging and discharging plates. Among the multiple discharging and discharging plates, the discharging and discharging plate closest to the loading and unloading robot module is the unloading position, the discharging and discharging plate furthest from the loading and unloading robot module is the discharging position, and the middle one is the discharging storage position. The loading and unloading robot module is provided with a first robot and a second robot that move synchronously along a first direction to switch between a first position and a second position. While the first robot moves from the first position to the second position to transfer the substrate to be printed on the loading position of the feeding module to the loading and unloading positions of the turntable module, the second robot transfers the printed substrate on the loading and unloading positions of the turntable module to the unloading position of the discharging module.

2. The bare film conveying screen printing machine according to claim 1, characterized in that, The feeding module and the discharging module have the same structure, both including a first mounting beam and a second mounting beam that extend parallel to the second direction and are supported on the frame. The plurality of feeding / discharging plates are fixed sequentially on the first mounting beam and the second mounting beam. The module also includes a first linear guide rail extending in the second direction installed below the plurality of feeding / discharging plates, a cylinder slidably installed on the first linear guide rail, and a first drive assembly that drives the cylinder to move along the first linear guide rail. The feeding / discharging plate is fixed to the output end of the cylinder so that it moves along the first linear guide rail with the cylinder and can be lifted and lowered by the cylinder.

3. The bare film conveying screen printing machine according to claim 2, characterized in that, Each of the multiple feed plates / discharge plates is provided with clearance holes for the feed support plate / discharge support plate to rise and fall, and clearance grooves for the feed support plate / discharge support plate to move in the second direction.

4. The bare film conveying screen printing machine according to claim 3, characterized in that, The feeding / discharging support plate is provided with a connecting column that is fixedly connected to the output end of the cylinder. The clearance hole has a shape corresponding to the feeding / discharging support plate, and the clearance groove corresponds to the width of the connecting column.

5. The bare film conveying screen printing machine according to claim 2, characterized in that, The first drive assembly is a belt drive assembly, including a drive wheel and a driven wheel located at both ends in a second direction below the plurality of feed / discharge plates, a drive belt sleeved on the drive wheel and the driven wheel, and a motor that drives the drive wheel to rotate. The cylinder is fixedly connected to the drive belt so that it can be driven by the drive belt to move along the first linear guide rail.

6. The bare film conveying screen printing machine according to claim 1, characterized in that, The multiple feeding and unloading plates, feeding and supporting plates, multiple discharging and unloading plates, discharging and supporting plates, and the four material-bearing platforms on the turntable module all use vacuum adsorption to fix the substrate.

7. The bare film conveying screen printing machine according to claim 1, characterized in that, The frame also has a positioning mechanism that cooperates with the material receiving platform below the positioning position corresponding to the turntable module.

8. The bare film conveying screen printing machine according to claim 1, characterized in that, The loading / unloading robot module includes a crossbeam extending in a first direction supported on a frame and a second linear guide rail extending in the first direction disposed on the crossbeam. The first robot and the second robot are slidably mounted on the second linear guide rail. The loading / unloading robot module also includes a second drive component that drives the first robot and the second robot to move synchronously along the second linear guide rail.

9. The bare film conveying screen printing machine according to claim 8, characterized in that, The second drive component is a belt drive component.

10. The bare film conveying screen printing machine according to claim 1, characterized in that, The plurality of feed plates / discharge plates have two feed storage positions / discharge storage positions.

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