Three-station high-efficiency screen printing equipment
By designing a moving and positioning mechanism for the printing table in a three-station high-efficiency screen printing equipment, efficient screen printing and hole plugging of the substrate are achieved, solving the problems of low production efficiency and high labor intensity in existing equipment and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2026-04-14
Smart Images
Figure CN117681542B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of screen printing equipment technology, and in particular to a three-station high-efficiency screen printing device. Background Technology
[0002] A screen printing machine is a device used to screen print and fill holes on a substrate. It is a crucial piece of equipment in the production of printed circuit boards. Typically, one screen printing machine is paired with one worker or loading / unloading device (such as a robot) to load and unload the substrate. However, screen printing and hole filling take time, resulting in long waiting times for the worker or loading / unloading device. To further improve production efficiency, a solution was proposed: two screen printing machines paired with one worker or loading / unloading device, arranged side-by-side. This placed significant demands on the space available for the equipment. The worker or loading / unloading device then moved back and forth between the two loading / unloading areas of the two machines, drastically increasing their workload and labor intensity. Furthermore, this back-and-forth movement was essentially pointless, offering little improvement in production efficiency. Summary of the Invention
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a three-station high-efficiency screen printing device that eliminates the need for workers or loading / unloading devices to move back and forth, effectively improving production efficiency.
[0004] A three-station high-efficiency screen printing device according to an embodiment of the present invention includes a frame, a printing table moving mechanism, a first screen printing mechanism, and a second screen printing mechanism. The frame is provided with a first station, a loading / unloading station, and a second station. The printing table moving mechanism is disposed on the frame, and is provided with a first printing table and a second printing table. The printing table moving mechanism is used to drive the first printing table to move back and forth between the first station and the loading / unloading station, and to drive the second printing table to move back and forth between the second station and the loading / unloading station. The first printing table and the second printing table can alternately appear at the loading / unloading station. The first screen printing mechanism and the second screen printing mechanism are respectively disposed on the first station and the second station, and are respectively used to screen print or plug holes on the substrate on the first printing table and to screen print or plug holes on the substrate on the second printing table.
[0005] At least the following beneficial effects are achieved: The first and second printing plates alternately appear at the loading and unloading stations. Workers or loading / unloading devices alternately load and unload materials onto the first and second printing plates, eliminating the need for workers or devices to move back and forth, reducing workload and labor intensity, minimizing wasted effort, and allowing workers to conserve more energy for subsequent work, thus contributing to improved efficiency. When the first screen printing mechanism performs screen printing or hole-filling processing on the substrate on the first printing plate, workers or loading / unloading devices load and unload materials onto the second printing plate. Then, when the second screen printing mechanism performs screen printing or hole-filling processing on the substrate on the second printing plate, workers or loading / unloading devices load and unload materials onto the first printing plate. This effectively reduces the waiting time for workers or loading / unloading devices, as well as the waiting time for materials at both the first and second screen printing mechanisms, thereby improving the processing efficiency of the substrates.
[0006] According to some embodiments of the present invention, the frame is provided with a housing, and a vacuum cavity is formed inside the housing. The first station, the loading / unloading station, the second station, the printing table moving mechanism, the first screen printing mechanism, and the second screen printing mechanism are all located in the vacuum cavity. The housing is provided with a transfer chamber in the area corresponding to the loading / unloading station. The transfer chamber can alternately communicate with the vacuum cavity and the space outside the housing. Both the first printing table and the second printing table can enter the transfer chamber. When the first printing table or the second printing table is in the transfer chamber and the transfer chamber is in communication with the space outside the housing, loading / unloading can be performed on the first printing table or the second printing table.
[0007] According to some embodiments of the present invention, the printing table moving mechanism includes a conveyor belt, which is located at the first station, the loading / unloading station, and the second station. The first station and the second station are respectively provided with a first positioning mechanism and a second positioning mechanism. The first positioning mechanism is used to position the first printing table at the first station to screen print or plug holes on the substrate on the first printing table. The second positioning mechanism is used to position the second printing table at the second station to screen print or plug holes on the substrate on the second printing table.
[0008] According to some embodiments of the present invention, the second positioning mechanism includes a positioning plate and a buffer assembly disposed on the positioning plate, and the second printing plate can abut against the buffer assembly.
[0009] According to some embodiments of the present invention, the loading and unloading station is provided with a pushing mechanism, which is used to push the first printing table or the second printing table into the transfer compartment.
[0010] According to some embodiments of the present invention, the outer casing is provided with a transfer port and a sealing door. The inner wall of the transfer port is the peripheral wall of the transfer compartment. The pushing mechanism can push the first printing table or the second printing table against the inner end of the transfer port to seal the inner opening of the transfer compartment and push the printing material on the first printing table or the second printing table into the transfer compartment. The sealing door is used to seal the outer end of the transfer port to seal the outer opening of the transfer compartment.
[0011] According to some embodiments of the present invention, a CCD positioning mechanism is provided above the sealed door, and the camera of the CCD positioning mechanism faces the transfer compartment.
[0012] According to some embodiments of the present invention, the outer casing includes a trough, a cover plate, and two upper covers. The cover plate covers the middle of the trough opening of the trough, the transfer port is located on the cover plate, the conveyor belt is located in the trough cavity of the trough and is parallel to the length direction of the trough cavity, and the two upper covers are respectively located at both ends of the trough opening to form a first vacuum chamber and a second vacuum chamber. The first screen printing mechanism and the second screen printing mechanism are respectively located in the first vacuum chamber and the second vacuum chamber.
[0013] According to some embodiments of the present invention, both of the top covers are provided with access doors.
[0014] According to some embodiments of the present invention, the pushing mechanism includes a base plate and a first linear drive mechanism, a second linear drive mechanism and a lifting plate, all disposed on the base plate. The output end of the first linear drive mechanism faces upward and is connected to the lifting plate. The second linear drive mechanism is horizontally disposed. The output end of the second linear drive mechanism is provided with a wedge block. The lifting plate is connected to a pressing block. The second linear drive mechanism drives the wedge block to move so that the pressing block abuts against the wedge block.
[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0017] Figure 1 This is a schematic diagram of the structure of the high-efficiency screen printing equipment with three workstations according to Embodiment 3 of the present invention;
[0018] Figure 2 This is a structural diagram of the high-efficiency screen printing equipment with three workstations according to an embodiment of the present invention, showing the first screen printing mechanism, the second screen printing mechanism, and the two top covers.
[0019] Figure 3This is a schematic diagram of the structure of the tank, cover plate, first printing table, second printing table, printing table moving mechanism and second positioning mechanism in the high-efficiency screen printing equipment of the third station according to Embodiment 3 of the present invention.
[0020] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;
[0021] Figure 5 for Figure 3 A cross-sectional view of the structure shown;
[0022] Figure 6 This is a cross-sectional view of the pushing mechanism of the high-efficiency screen printing equipment in Embodiment 3 of the present invention;
[0023] Figure 7 This is a schematic diagram of the sliding mechanism, support frame, lifting drive mechanism, and sealing door in the high-efficiency screen printing equipment of the third workstation according to Embodiment 3 of the present invention;
[0024] Reference numerals: Frame 100, CCD positioning mechanism 110, sliding mechanism 120, support frame 130, lifting drive mechanism 140, printing table moving mechanism 200, conveyor belt 210, first positioning mechanism 220, second positioning mechanism 230, positioning plate 231, buffer assembly 232, first printing table 300, second printing table 400, first screen printing mechanism 500, second screen printing mechanism 600, outer shell 700, sealing door 710, vacuum breaking mechanism 711, tank 720, cover plate 730, top cover 740, inspection door 741, transfer port 800, pushing mechanism 900, base plate 910, first linear drive mechanism 920, lifting plate 930, pressing block 931, second linear drive mechanism 940, wedge block 941. Detailed Implementation
[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0026] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.
[0027] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.
[0028] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.
[0029] Reference Figure 1 and Figure 2 The present invention discloses a three-station high-efficiency screen printing equipment, including a frame 100, a printing table moving mechanism 200, a first screen printing mechanism 500, and a second screen printing mechanism 600.
[0030] The frame 100 is equipped with a first station, a loading / unloading station, and a second station;
[0031] The printing table moving mechanism 200 is mounted on the frame 100. The printing table moving mechanism 200 is equipped with a first printing table 300 and a second printing table 400. The printing table moving mechanism 200 is used to drive the first printing table 300 to move back and forth between the first station and the loading and unloading station, and to drive the second printing table 400 to move back and forth between the second station and the loading and unloading station. The first printing table 300 and the second printing table 400 can alternately appear at the loading and unloading station.
[0032] The first screen printing mechanism 500 and the second screen printing mechanism 600 are respectively located at the first work station and the second work station. The first screen printing mechanism 500 and the second screen printing mechanism 600 are respectively used to screen print or plug holes on the substrate on the first printing table 300 and the substrate on the second printing table 400.
[0033] Initially, the first printing table 300 can be positioned at the loading / unloading station, and the second printing table 400 at the second station. When the screen printing equipment is working, the worker or loading / unloading device is positioned near the loading / unloading station and places the first unprocessed substrate on the first printing table 300. Then, the printing table moving mechanism 200 transports the first printing table 300 to the first station and the second printing table 400 from the second station to the loading / unloading station. The first printing table 300, carrying the first unprocessed substrate, moves to below the first screen printing mechanism 500, whereby the first screen printing mechanism 500 can perform screen printing or hole plugging on the substrate on the first printing table 300. The worker or loading / unloading device then places the second unprocessed substrate on the second printing table 400.
[0034] After the first screen printing mechanism 500 finishes screen printing or hole plugging on the substrate on the first printing table 300, the first processed substrate is obtained. The printing table moving mechanism 200 resets the first printing table 300 to the loading and unloading station. The worker or loading and unloading device removes the first processed substrate from the first printing table 300 and places the third unprocessed substrate on the first printing table 300. The second printing table 400 carries the second unprocessed substrate back to the second station. The second screen printing mechanism 600 performs screen printing or hole plugging on the substrate on the second printing table 400 to obtain the second processed substrate.
[0035] Next, the printing table moving mechanism 200 transports the first printing table 300 back to the first workstation. The first printing table 300, carrying the third unprocessed substrate, moves to below the first screen printing mechanism 500. The first screen printing mechanism 500 can then perform screen printing or hole filling on the third unprocessed substrate. The printing table moving mechanism 200 then transports the second printing table 400 to the loading / unloading station. The worker or loading / unloading device removes the second processed substrate from the second printing table 400 and places the fourth unprocessed substrate on it. This process continues, with the first printing table 300 and the second printing table 400 alternating between the loading / unloading stations. The worker or loading / unloading device alternates between loading / unloading the first printing table 300 and the second printing table 400, eliminating the need for the worker or loading / unloading device to move back and forth. This reduces workload and labor intensity, minimizes wasted effort, and allows workers to conserve more energy for subsequent work, thus improving efficiency.
[0036] When the first screen printing mechanism 500 performs screen printing or hole plugging on the substrate on the first printing table 300, the worker or loading / unloading device loads / unloads the substrate to the second printing table 400. Then, when the second screen printing mechanism 600 performs screen printing or hole plugging on the substrate on the second printing table 400, the worker or loading / unloading device loads / unloads the substrate to the first printing table 300. This can effectively reduce the waiting time of the worker or loading / unloading device, as well as the waiting time of the first screen printing mechanism 500 and the second screen printing mechanism 600, thereby improving the processing efficiency of the substrate.
[0037] Compared with the solution of setting up two screen printing machines side by side, the screen printing machine of the present invention occupies less space and can effectively reduce the waiting time of workers or loading and unloading devices, and is particularly suitable for substrates with large thickness-to-diameter ratio and long hole plugging time.
[0038] In some embodiments, the distances between the first station and the loading / unloading station, as well as between the loading / unloading station and the second station, are equal. The printing table moving mechanism 200 is connected to the first printing table 300 and the second printing table 400. The distance between the first printing table 300 and the second printing table 400 is equal to the distance between the first station and the loading / unloading station. The printing table moving mechanism 200 can simultaneously drive the first printing table 300 and the second printing table 400 to move, such that when the first printing table 300 is on the first station and below the first screen printing mechanism 500, the second printing table 400 is on the loading / unloading station; and when the first printing table 300 is on the loading / unloading station, the second printing table 400 is on the second station and below the second screen printing mechanism 600. The above method is a synchronous driving method for moving the first printing table 300 and the second printing table 400.
[0039] Of course, the printing plate moving mechanism 200 can also be used to drive the first printing plate 300 and the second printing plate 400 to move separately. The printing plate moving mechanism 200 is detachably connected to the first printing plate 300 and the second printing plate 400. When the printing table moving mechanism 200 transports the first printing table 300 to the first station, the printing table moving mechanism 200 disengages from the first printing table 300 and then connects to the second printing table 400. The printing table moving mechanism 200 can then drive the second printing table 400 to move back and forth between the loading / unloading station and the second station. Alternatively, when the printing table moving mechanism 200 transports the second printing table 400 to the second station, the printing table moving mechanism 200 disengages from the second printing table 400 and then connects to the first printing table 300. The printing table moving mechanism 200 can then drive the first printing table 300 to move back and forth between the first station and the loading / unloading station.
[0040] This driving method of the printing table moving mechanism 200 is suitable for situations where the screen printing equipment can still operate normally when one of the first screen printing mechanism 500 and the second screen printing mechanism 600, or one of the first printing table 300 and the second printing table 400, malfunctions. This driving method of the printing table moving mechanism 200 does not impose limitations on the distance between the first station and the loading / unloading station, or the distance between the loading / unloading station and the second station.
[0041] See Figure 1 In some embodiments, the frame 100 is provided with a housing 700, and a vacuum cavity is formed inside the housing 700. The first station, the loading and unloading station, the second station, the printing table moving mechanism 200, the first screen printing mechanism 500 and the second screen printing mechanism 600 are all located in the vacuum cavity. The screen printing equipment of the present invention is a vacuum screen printing equipment, which can be applied to substrates that require vacuum processing for replacement.
[0042] The outer casing 700 has a transfer chamber in the area corresponding to the loading and unloading stations. The transfer chamber can alternately communicate with the vacuum chamber and the space outside the outer casing 700. When the vacuum chamber and the transfer chamber are connected, the first printing table 300 or the second printing table 400 is within the range of the transfer chamber. At this time, the vacuum chamber and the transfer chamber are isolated and connected, and the transfer chamber is opened, so that the transfer chamber is connected with the space outside the outer casing 700, allowing loading and unloading of materials to the first printing table 300 or the second printing table 400. When the first printing table 300 or the second printing table 400 unloads and loads materials... After the material is collected, the transfer chamber is closed, isolating it from the space outside the outer casing 700. Then, the vacuum chamber and the transfer chamber are reconnected, allowing the first printing table 300 and the substrate on it, or the second printing table 400 and the substrate on it, to enter the vacuum chamber. Then, the printing table moving mechanism 200 can drive the first printing table 300 carrying the substrate to the first work station, or the printing table moving mechanism 200 can drive the second printing table 400 carrying the substrate to the second work station.
[0043] The transfer chamber acts as a transition chamber, alternately connecting with the vacuum chamber and the outside environment. This ensures that the vacuum chamber maintains a vacuum environment throughout the transfer of the substrate between the vacuum chamber, the transfer chamber, and the outside world. It should be understood that the screen printing equipment also includes a negative pressure mechanism. The vacuum tube of this mechanism is connected to the vacuum chamber, maintaining a vacuum environment within the chamber. This vacuum environment is below atmospheric pressure, and the vacuum level, or pressure, of the vacuum chamber can be set as needed.
[0044] See Figure 3 and Figure 5 In some embodiments, the printing table moving mechanism 200 includes a conveyor belt 210, which is located at a first station, a loading / unloading station, and a second station. When the first printing table 300 and the second printing table 400 abut against or are connected to the conveyor belt 210, the conveyor belt 210 can drive the first printing table 300 to move back and forth between the first station and the loading / unloading station, and the conveyor belt 210 can drive the second printing table 400 to move back and forth between the loading / unloading station and the second station.
[0045] The first station and the second station are respectively equipped with a first positioning mechanism 220 and a second positioning mechanism 230. The first positioning mechanism 220 is used to accurately position the first printing plate 300 on the first station, and the second positioning mechanism 230 is used to accurately position the second printing plate 400 on the second station.
[0046] When the first positioning mechanism 220 positions the first printing table 300 at the first work station, the first screen printing mechanism 500 can accurately screen print or plug holes on the substrate on the first printing table 300; when the second positioning mechanism 230 positions the second printing table 400 at the second work station, the second screen printing mechanism 600 can accurately screen print or plug holes on the substrate on the second printing table 400.
[0047] See Figure 4 In some embodiments, the second positioning mechanism 230 includes a positioning plate 231 and a buffer assembly 232 disposed on the positioning plate 231. The positioning plate 231 is fixedly connected to the housing 700, thereby positioning and fixing the buffer assembly 232 and the adsorption assembly. When the conveyor belt 210 drives the second printing table 400 to move towards the second work station, the buffer assembly 232 is on the moving trajectory of the second printing table 400. The second printing table 400 can abut against the buffer assembly 232, causing the second printing table 400 to decelerate and stop, preventing the second printing table 400 from hitting the positioning plate 231 or detaching from the conveyor belt 210.
[0048] The positioning plate 231 has a guide hole, the length of which is parallel to the conveying direction of the conveyor belt 210. The buffer assembly 232 includes a guide rod and an elastic element sleeved on the guide rod. One end of the guide rod passes through the guide hole, and the other end of the guide rod has a shoulder. One end of the elastic element abuts against the side of the positioning plate 231, and the other end of the elastic element abuts against the shoulder. The other end of the guide rod is used to abut against the second printing plate 400. The elastic element is a spring.
[0049] In another embodiment, the second positioning mechanism 230 further includes an adsorption component that can hold the second printing plate 400 in place, preventing accidental displacement of the second printing plate 400 and ensuring its stability. The adsorption component can be an electromagnet.
[0050] In this embodiment, there are two second positioning mechanisms 230. The two second positioning mechanisms 230 are arranged along the width direction of the conveyor belt 210, and the two second positioning mechanisms 230 can respectively abut against the two ends of the second printing table 400.
[0051] It is conceivable that the structure, quantity, and connection relationship of the first positioning mechanism 220 are the same as those of the second positioning mechanism 230, and will not be described redundantly here.
[0052] In some embodiments, the conveyor belt 210 is a belt conveyor mechanism, including two parallel belts at the same height, and the first printing table 300 straddles the two belts.
[0053] See Figure 5In some embodiments, a pushing mechanism 900 is provided at the loading and unloading station. The pushing mechanism 900 is positioned opposite to the transfer chamber. The pushing mechanism 900 is used to push the first printing table 300 or the second printing table 400 into the transfer chamber to facilitate the isolation of the transfer chamber from the vacuum chamber.
[0054] Specifically, the transfer chamber has an inner opening and an outer opening. The inner opening can communicate with the vacuum chamber, and the outer opening can connect to the outside. The first printing table 300 and the second printing table 400 have the same structure. Both the first printing table 300 and the second printing table 400 are equipped with a platform for supporting and limiting the printing material. The size of the platform is smaller than the size of the inner opening and the outer opening. The platform of the first printing table 300 or the platform of the second printing table 400 can enter the transfer chamber through the inner opening, making the printing material on the platform closer to the outer opening and the outside, facilitating the sealing and closing of the inner opening of the transfer chamber, and facilitating the loading and unloading of materials onto the platform inside the transfer chamber.
[0055] In some embodiments, the outer casing 700 is provided with a transfer port 800, the inner wall of the transfer port 800 is the peripheral wall of the transfer compartment, and the pushing mechanism 900 can push the first printing table 300 or the second printing table 400 against the inner end of the transfer port 800 to seal the inner opening of the transfer compartment and push the printing material on the first printing table 300 or the second printing table 400 into the transfer compartment.
[0056] Specifically, the first printing table 300 also includes a tray, with the table plate disposed on the tray. The size of the tray plate is larger than the size of the transfer port 800 and the size of the inner opening of the transfer chamber. The tray plate cannot pass through the transfer port 800 and the transfer chamber. When the pushing mechanism 900 moves the first printing table 300 or the second printing table 400, the tray plate can abut against the side wall of the inner end of the transfer port 800 and form a seal, thereby sealing the inner opening of the transfer chamber. At this time, the tray plate carrying the printing substrate is in the transfer chamber, and the transfer chamber is isolated from the vacuum chamber.
[0057] See Figure 1 and Figure 2 The outer casing 700 is also equipped with a sealing door 710, which is used to seal the outer end of the transfer port 800, thereby sealing the outer opening of the transfer chamber. Opening the sealing door 710 can connect the transfer chamber with the outside world, thereby allowing the loading and unloading of materials to the first printing table 300 or the second printing table 400.
[0058] In some embodiments, the sealing door 710 may be connected to the housing 700 by a hinged connection. See also Figure 7In this embodiment, a sliding mechanism 120 is provided on the frame 100 or the outer casing 700. One end of the sliding mechanism 120 is opposite to the transfer port 800, and the other end is away from the transfer port 800. A support frame 130 is provided on the sliding mechanism 120, and a lifting drive mechanism 140 is provided on the support frame 130. The output end of the lifting drive mechanism 140 faces downward and is connected to the sealing door 710. The sliding mechanism 120 can move the lifting drive mechanism 140 and the sealing door 710 to above the outer end of the transfer port 800. The lifting drive mechanism 140 drives the sealing door 710 to descend, so that the sealing door 710 covers the transfer port 800. The sealing door 710 is closed by forming a seal with the side wall of the outer end of the transfer port 800 on the outer end of the port 800. When it is necessary to open the sealing door 710, the lifting drive mechanism 140 drives the sealing door 710 to move upward to disengage from the side wall of the outer end of the transfer port 800. The sliding mechanism 120 drives the lifting drive mechanism 140 and the sealing door 710 to move away from the transfer port 800. The sliding mechanism 120 and the lifting drive mechanism 140 can make the sealing door 710 avoid the area of the outer end of the transfer port 800, so as to avoid interference with the sealing door 710 when the substrate is loaded and unloaded, and facilitate the rapid loading and unloading of the substrate.
[0059] The sliding mechanism 120 includes a third linear drive mechanism and a cooperating guide rail and guide block. The guide rail is connected to the frame 100 or the housing 700, with one end of the guide rail located next to the transfer port 800. The guide block is connected to the support frame 130. Both the third linear drive mechanism and the lifting drive mechanism 140 can be cylinders.
[0060] In this embodiment, there are two sliding mechanisms 120, with their two guide rails positioned on either side of the transfer port 800. A support frame 130 spans across the two guide blocks. The support frame 130 is a frame-like structure. There are four cylinders, each mounted on the support frame 130.
[0061] The sealed door 710 is equipped with a vacuum-breaking mechanism 711. This mechanism 711 is used to break the vacuum in the transfer chamber. When the transfer chamber is isolated from the vacuum cavity, it is under vacuum or at least low pressure, making it difficult to open the sealed door 710. Only after the vacuum-breaking mechanism 711 breaks the vacuum in the transfer chamber can the sealed door 710 be easily opened. The vacuum-breaking mechanism 711 is a common component on the market and will not be described in detail here.
[0062] See Figure 1 and Figure 2In some embodiments, a CCD positioning mechanism 110 is provided above the sealing door 710. The camera of the CCD positioning mechanism 110 faces the transfer compartment. The CCD positioning mechanism 110 is used to take pictures of the substrate to determine the precise position of the substrate on the first printing table 300 or the second printing table 400. The first screen printing mechanism 500 or the second screen printing mechanism 600 can accurately perform screen printing or hole plugging processing on the substrate based on the position information.
[0063] See Figure 6 In some embodiments, the pushing mechanism 900 includes a base plate 910 and a first linear drive mechanism 920, a second linear drive mechanism 940 and a lifting plate 930, all disposed on the base plate 910. The output end of the first linear drive mechanism 920 faces upward and is connected to the lifting plate 930. The first linear drive mechanism 920 drives the lifting plate 930 to perform lifting and lowering movements. When the lifting plate 930 rises, it can lift the first printing table 300 or the second printing table 400.
[0064] The second linear drive mechanism 940 is horizontally positioned. A wedge block 941 is located at the output end of the second linear drive mechanism 940. A pressing block 931 is connected to the lifting plate 930. When the first linear drive mechanism 920 drives the lifting plate 930 to a suitable position, and the second linear drive mechanism 940 drives the wedge block 941 to move towards the pressing block 931, the wedge block 941 abuts against the pressing block 931, preventing the pressing block 931 and the lifting plate 930 from accidentally descending, thereby preventing accidental connection between the transfer chamber and the vacuum chamber. Conversely, when the first linear drive mechanism 920 drives the wedge block 941 to move away from the pressing block 931, the wedge block 941 moves away from and disengages from the pressing block 931, allowing the pressing block 931 and the lifting plate 930 to descend.
[0065] See Figure 5 The base plate 910 is connected to the inner bottom wall of the outer shell 700. The base plate 910 and the lifting plate 930 are connected by mutually cooperating guide posts and guide sleeves. The guide posts and guide sleeves guide the movement direction of the lifting plate 930 and ensure that the lifting plate 930 rises and falls relative to the base plate 910.
[0066] The conveyor belt 210 is located at the bottom of the outer casing 700, and the transfer port 800 / transfer bin is located above the conveyor belt 210. This results in a small gap between the conveyor belt 210 and the bottom wall of the outer casing 700, as well as a small gap between the bottom wall of the outer casing 700 and the transfer port 800 / transfer bin. The pushing mechanism 900 is located in the vacuum chamber and within the gap between the bottom wall of the outer casing 700 and the transfer port 800 / transfer bin. Therefore, the height of the pushing mechanism 900 cannot be too large. However, since the first linear drive mechanism 920 is horizontally positioned, the first inclined plane drives the pressing block 931 and the lifting plate 930 to rise and fall, thereby reducing the height of the pushing mechanism 900.
[0067] In this embodiment, there are at least two of each of the following: the first linear drive mechanism 920, the wedge block 941, and the pressing block 931. One first linear drive mechanism 920, one wedge block 941, and one pressing block 931 cooperate. The first linear drive mechanism 920 is positioned beside both ends of the lifting plate 930. The upper surface of the wedge block 941 is a first inclined surface, with the lower end of the first inclined surface closer to the pressing block 931 than the upper end. The lower end surface of the pressing block 931 is a second inclined surface. In the cooperating wedge block 941 and pressing block 931, the second inclined surface and the first inclined surface are parallel to each other. The first linear drive mechanism 920 is a cylinder.
[0068] See Figure 1 , Figure 3 and Figure 5 In some embodiments, the outer casing 700 includes a groove 720, a cover plate 730, and two upper covers 740. The cover plate 730 is disposed in the middle of the groove opening of the groove 720 and is connected to the groove 720 and sealed between them. The two upper covers 740 are respectively disposed in the two ends of the groove opening and are both connected to the groove 720 and sealed between the two upper covers 740 and the groove 720. One upper cover 740 is connected to and sealed with the cover plate 730, and the cover plate 730 is connected to and sealed with the other upper cover 740. One upper cover 740 and one end of the groove 720 form a first vacuum chamber, and the other upper cover 740 and the other end of the groove 720 form a second vacuum chamber. The cover plate 730 and the middle of the groove 720 form a transition chamber. The first vacuum chamber, the transition chamber, and the second vacuum chamber form a complete vacuum cavity.
[0069] The conveyor belt 210 is disposed in the cavity of the trough 720 and is parallel to the length direction of the trough cavity. The two ends of the conveyor belt 210 are respectively disposed at the two ends of the trough 720. The first station and the second station are respectively disposed in the first vacuum chamber and the second vacuum chamber. The first screen printing mechanism 500 and the second screen printing mechanism 600 are respectively disposed in the first vacuum chamber and the second vacuum chamber. The first vacuum chamber and the second vacuum chamber respectively serve to house the first screen printing mechanism 500 and the second screen printing mechanism 600.
[0070] In some embodiments, the first positioning mechanism 220 and the second positioning mechanism 230 are respectively connected to the inner bottom walls at both ends of the tank 720. The bottom plate 910 is connected to the inner bottom wall of the tank 720. The positioning plate 231 is connected to the inner bottom wall of the tank 720.
[0071] The transfer port 800 is located on the cover plate 730 and is connected to the transition chamber. The thickness of the cover plate 730 is equal to the height of the transfer port 800, and the height of the transfer port 800 is greater than the thickness of the substrate, so that the substrate can be placed inside the transfer port 800.
[0072] See Figure 1In some embodiments, both top covers 740 are provided with inspection doors 741. By opening the inspection doors 741, the first screen printing mechanism 500 and the second screen printing mechanism 600 can be easily inspected and maintained.
[0073] The two top covers 740 are equipped with transparent observation windows, through which the status of the first screen printing mechanism 500 and the second screen printing mechanism 600 can be directly observed. When the first screen printing mechanism 500 and the second screen printing mechanism 600 malfunction, as well as the processing status of the substrate, can be directly observed.
[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0075] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A three-station high-efficiency screen printing equipment, characterized in that, include: The machine frame is equipped with a first station, a loading / unloading station, and a second station. A printing table moving mechanism is provided on the frame. The printing table moving mechanism is provided with a first printing table and a second printing table. The printing table moving mechanism is used to drive the first printing table to move back and forth between the first station and the loading and unloading station, and to drive the second printing table to move back and forth between the second station and the loading and unloading station. The first printing table and the second printing table can alternately appear at the loading and unloading station. The first screen printing mechanism and the second screen printing mechanism are respectively located on the first workstation and the second workstation. The first screen printing mechanism and the second screen printing mechanism are respectively used to screen print or plug holes on the substrate on the first printing table and to screen print or plug holes on the substrate on the second printing table. The frame is provided with an outer shell, and a vacuum cavity is formed inside the outer shell. The first station, the loading and unloading station, the second station, the printing table moving mechanism, the first screen printing mechanism, and the second screen printing mechanism are all located in the vacuum cavity. The outer shell is provided with a transfer chamber in the area corresponding to the loading and unloading station. The transfer chamber can alternately communicate with the vacuum cavity and the space outside the outer shell. Both the first printing table and the second printing table can enter the transfer chamber. When the first printing table or the second printing table is in the transfer chamber and the transfer chamber is connected to the space outside the outer shell, loading and unloading can be performed on the first printing table or the second printing table. The loading and unloading station is equipped with a pushing mechanism, which is used to push the first printing table or the second printing table into the transfer chamber. The outer shell is equipped with a transfer port and a sealing door. The inner wall of the transfer port is the peripheral wall of the transfer chamber. The pushing mechanism can push the first printing table or the second printing table against the inner end of the transfer port to seal the inner opening of the transfer chamber and push the printing material on the first printing table or the second printing table into the transfer chamber. The sealing door is used to seal the outer end of the transfer port to seal the outer opening of the transfer chamber.
2. The three-station high-efficiency screen printing equipment according to claim 1, characterized in that: The printing table moving mechanism includes a conveyor belt, which is located at the first station, the loading / unloading station, and the second station. The first station and the second station are respectively provided with a first positioning mechanism and a second positioning mechanism. The first positioning mechanism is used to position the first printing table at the first station to screen print or plug holes on the substrate on the first printing table. The second positioning mechanism is used to position the second printing table at the second station to screen print or plug holes on the substrate on the second printing table.
3. The three-station high-efficiency screen printing equipment according to claim 2, characterized in that: The second positioning mechanism includes a positioning plate and a buffer assembly disposed on the positioning plate, and the second printing table can rest against the buffer assembly.
4. The three-station high-efficiency screen printing equipment according to claim 2, characterized in that: The outer casing includes a trough, a cover plate, and two upper covers. The cover plate covers the middle of the trough opening of the trough, and the transfer port is located on the cover plate. The conveyor belt is located in the trough cavity of the trough and is parallel to the length direction of the trough cavity. The two upper covers are respectively located at both ends of the trough opening to form a first vacuum chamber and a second vacuum chamber. The first screen printing mechanism and the second screen printing mechanism are respectively located in the first vacuum chamber and the second vacuum chamber.
5. The three-station high-efficiency screen printing equipment according to claim 4, characterized in that: Both of the aforementioned covers are equipped with inspection doors.
6. The three-station high-efficiency screen printing equipment according to claim 1, characterized in that: A CCD positioning mechanism is provided above the sealed door, and the camera of the CCD positioning mechanism faces the transfer compartment.
7. The three-station high-efficiency screen printing equipment according to claim 1, characterized in that: The pushing mechanism includes a base plate and a first linear drive mechanism, a second linear drive mechanism, and a lifting plate, all disposed on the base plate. The output end of the first linear drive mechanism faces upward and is connected to the lifting plate. The second linear drive mechanism is horizontally disposed and has a wedge block at its output end. The lifting plate is connected to a pressing block. The second linear drive mechanism drives the wedge block to move so that the pressing block presses against the wedge block.
Citation Information
Patent Citations
Double-ink-pad and double-station battery piece printing device
CN215041190U