Vacuum hole plugging machine

Abstract

The utility model relates to PCB (printed circuit board) processing equipment, in particular to a vacuum hole plugging machine. Comprising a rack, a sealing assembly, a sealing side door, a vacuumizer, a translation assembly, a jacking assembly and a screen printing assembly. Wherein the translation assembly comprises a first translation set and a second translation set, the first translation set and the second translation set do not interfere with each other in the front-back movement process through the height difference, the first translation set and the second translation set are driven by the translation driving set to synchronously move front and back in the reverse direction, and silk screen trays are installed at the upper ends of the first translation set and the second translation set. By designing the first translation group and the second translation group which synchronously and reversely move, when one translation group performs silk-screen hole plugging, the other translation group can perform feeding and discharging at the same time, silk-screen and feeding and discharging are synchronously performed, and therefore the silk-screen efficiency is remarkably improved. The feeding port is designed to be capable of being vacuumized independently, so that the feeding port can finish the vacuumizing process independently while silk-screen hole plugging is carried out, the situation that the whole vacuum cavity needs to be vacuumized is avoided, and the time needed for vacuumizing is shortened.

Description

Technical Field

[0001] The utility model relates to PCB board processing equipment, in particular to a vacuum plugging machine. Background Art

[0002] In the process of manufacturing PCB boards, vacuum screen printing technology is generally used. The PCB board that needs to be plugged is placed in a vacuum chamber. After the vacuum unit is evacuated, the inkjet device in the vacuum chamber sprays ink, the vacuum chamber is opened and the PCB board is taken out, and then the excess ink is scraped off with a scraper. Although the holes can be filled quickly and accurately, and there are fewer bulges, depressions or discontinuities, the vacuum chamber has a relatively large space, and the vacuuming time is relatively long, and the work efficiency is slow. For this reason, the utility model patent with the authorization announcement number CN209176303U provides a vacuum screen printing machine composed of a small vacuum chamber and a main vacuum chamber. The loading and unloading is completed in the small vacuum chamber. After the loading is completed, there is no need to evacuate the entire vacuum chamber, and only the small vacuum chamber needs to be evacuated. However, during the vacuuming process, it is impossible to perform subsequent screen printing plugging, resulting in the overall processing efficiency still being difficult to meet the requirements. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a vacuum via plugging machine with high silk screen via plugging efficiency.

[0004] In order to solve the above technical problems, the embodiment of the utility model provides such a vacuum plugging machine, comprising:

[0005] The frame has a feed port at the front end, sealing edges are provided at the upper and lower ends of the feed port, and a vacuum exhaust hole is provided on one side of the middle part of the feed port;

[0006] The sealing component is installed at the upper end of the front side of the frame and can cooperate with the sealing edge to isolate the internal air flow of the frame from the outside;

[0007] Sealed side doors are located on the left and right sides of the upper end of the rack to isolate the inside of the rack from the outside air flow;

[0008] The vacuum pump is arranged outside the frame, can evacuate the inside of the frame and is connected with the vacuum pumping hole;

[0009] The translation assembly comprises a first translation group and a second translation group which can move forward and backward in the frame, the first translation group and the second translation group do not interfere with each other in the process of moving forward and backward due to the height difference, the first translation group and the second translation group move forward and backward synchronously in opposite directions under the drive of the translation drive group, and the upper ends of the first translation group and the second translation group are both equipped with a silk screen tray which can move up and down;

[0010] The lifting component is arranged directly below the feeding port. When the first translation group or the second translation group moves to directly below the feeding port, the lifting component can lift the screen printing tray located directly above it and make the screen printing tray closely adhere to the sealing edge at the lower end of the feeding port.

[0011] The screen printing component is located at the upper end of the rear side of the frame. The first translation group or the second translation group can move to directly below the screen printing component.

[0012] As some embodiments of the present invention, the sealing component includes:

[0013] The first sliding beam is installed at the upper end of the front side of the frame;

[0014] The sliding plate is slidably arranged on the first sliding beam and can slide left and right along the first sliding beam;

[0015] The support plate is fixedly arranged on the front side of the sliding plate and can slide left and right following the sliding plate;

[0016] There are multiple telescopic members and they are fixedly arranged below the support plate;

[0017] The sealing door panel is arranged below the support plate and is fixedly connected to the telescopic rod of the telescopic member, and can move up and down under the drive of the telescopic member.

[0018] As some embodiments of the present invention, the first translation group includes:

[0019] The first slide rail is fixedly installed on both sides inside the frame;

[0020] The first slide seat is slidably arranged on the first slide rail;

[0021] The first platform is fixedly arranged on the upper end of the first slide seat, and a screen printing tray that can move up and down is installed on the upper end of the first platform;

[0022] The second translation group includes:

[0023] The second slide rail is fixedly installed on both sides inside the frame and is located inside the first slide rail;

[0024] The second slide seat is slidably arranged on the second slide rail, and the height of the second slide seat is lower than the height of the first slide seat;

[0025] The second platform is fixedly arranged on the upper end of the second slide seat, and a screen printing tray that can move up and down is installed on the upper end of the second platform.

[0026] As some embodiments of the present invention, the translation driving group includes:

[0027] The translation driving member is fixedly installed inside the frame;

[0028] There are three groups of translation belts, which rotate cyclically in the front and rear positions under the drive of a translation driving member;

[0029] The two groups of translation belts on the left and right sides are fixedly connected to the first sliding seat, driving the first sliding seat to move back and forth along the first slide rail;

[0030] The group of translation belts in the middle is fixedly connected to the second sliding seat, driving the second sliding seat to move back and forth along the second slide rail.

[0031] As some embodiments of the present invention, the jacking assembly includes:

[0032] There are multiple groups of ejector rod guide sleeves, which are fixedly installed in the frame directly below the feeding port;

[0033] The ejector rod is slidably arranged in the ejector rod guide sleeve and can pass through the first translation group or the second translation group to jack up the screen printing tray;

[0034] The top plate is fixedly arranged at the lower end of the ejector rod, driving the ejector rod to move up and down synchronously;

[0035] The jacking guide rod is fixedly installed in the frame directly below the feeding port and is slidably connected to the top plate up and down;

[0036] The jacking drive group is fixedly arranged at the lower end of the jacking guide rod and can drive the top plate to slide up and down along the jacking guide rod.

[0037] As a preference of some embodiments of the present invention, a first guide rod is installed outside the first platform, and the first guide rod is slidably connected to the screen printing tray at the upper end of the first platform up and down;

[0038] A second guide rod is installed outside the second platform, and the second guide rod is slidably connected to the screen printing tray at the upper end of the second platform up and down.

[0039] As some embodiments of the present invention, the screen printing assembly includes:

[0040] The screen printing platform is located at the upper end of the rear side of the frame;

[0041] The second sliding beam is fixedly arranged on the left and right sides of the rear side of the frame, and a rack is installed in the second sliding beam;

[0042] The cross beam straddles the second sliding beam, and screen printing drive groups meshing with the rack are arranged on both sides.

[0043] As some embodiments of the present invention, an oil return plate and a scraping plate are further installed on the cross beam.

[0044] As some embodiments of the present invention, the screen printing platform further includes a handle, which is convenient for pulling out the screen printing platform from the sealed side door, facilitating cleaning and adding ink.

[0045] As some embodiments of the present utility model, pneumatic components for pressing the sealed side door are fixedly installed on the outer sides of the left and right of the frame.

[0046] As some embodiments of the present utility model, it further includes a control panel, which is arranged on the left side in front of the frame and is used for manually setting the machine control.

[0047] As some embodiments of the present utility model, it further includes a machine top, which is fixedly arranged on the top surface of the frame and is used for isolating the gas flow inside the frame from the outside.

[0048] As some embodiments of the present utility model, it further includes hanging feet, and the hanging feet are fixedly arranged at the four corners of the top of the machine top.

[0049] As some embodiments of the present utility model, it further includes a vacuum tube, which is used to connect the inside of the frame with a vacuum pump.

[0050] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0051] In the traditional vacuum screen printing machine, screen printing and plugging holes cannot be carried out simultaneously during the vacuum pumping process, resulting in low efficiency. By designing the first translation group and the second translation group that move synchronously and in opposite directions, when one translation group is performing screen printing and plugging holes, the other translation group can perform loading and unloading at the same time, realizing the synchronization of screen printing and loading and unloading, thereby significantly improving the efficiency of screen printing.

[0052] The feed inlet of the present utility model is designed to be capable of independent vacuum pumping. In this way, while performing screen printing and plugging holes, the feed inlet can independently complete the vacuum pumping process, avoiding the need for the entire vacuum chamber to be evacuated, thereby reducing the time required for vacuum pumping. Due to the reduction of the vacuum pumping time, the running time of the vacuum pump is correspondingly reduced, which directly leads to a decrease in the energy consumption of the equipment. The control panel of the present utility model is arranged on the left side in front of the frame, which is convenient for the operator to control. At the same time, the screen printing platform is designed with a handle, which is convenient for pulling out from the sealed side door for cleaning and adding ink, improving the simplicity of operation. Pneumatic components are fixedly installed on the outer sides of the left and right of the frame to press the sealed side door, ensuring the stability and sealing performance of the equipment during operation. The machine top is designed with hanging feet, which is convenient for hoisting and transferring the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for describing the specific embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0054] Figure 1 Schematic three-dimensional structure diagram of an embodiment of the present utility model;

[0055] Figure 2 Schematic three-dimensional structure diagram of another perspective of an embodiment of the present utility model;

[0056] Figure 3 Schematic three-dimensional structure diagram of the interior of an embodiment of the present utility model;

[0057] Figure 4 Schematic three-dimensional structure diagram of the translation assembly of an embodiment of the present utility model;

[0058] Figure 5 Schematic three-dimensional structure diagram of the jacking assembly of an embodiment of the present utility model;

[0059] Figure 6 Schematic three-dimensional structure diagram of the screen printing assembly of an embodiment of the present utility model;

[0060] Figure 7 Schematic three-dimensional structure diagram of the sealing assembly of an embodiment of the present utility model.

[0061] The reference signs in the drawings are: frame (1), control panel (11), top of the machine (12), sealing edge (13), vacuum pumping hole (14), hanging feet (15), sealing assembly (2), first sliding beam (21), sliding plate (22), support plate (23), sealing door panel (24), telescopic member (25), sealing side door (3), pneumatic member (31), vacuum pump (4), vacuum tube (41), jacking assembly (5), jacking drive group (51), jacking guide rod (52), top plate (53), jacking rod (54), jacking rod guide sleeve (541), first guide rod (55), second guide rod (56), translation assembly (6), first translation group (61), first sliding seat (611), first platform (612), first sliding rail (613), second translation group (62), second sliding seat (621), second platform (622), second sliding rail (623), translation drive group (63), translation drive member (631), translation belt (632), screen printing tray (64), screen printing assembly (7), screen printing platform (71), handle (711), second sliding beam (72), rack (721), cross beam (73), screen printing drive group (731), oil return plate (732), squeegee (733). Detailed implementation manners

[0062] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the technical solutions in the specific implementation manners of the present utility model are clearly and completely described below to further illustrate the present utility model. Obviously, the described specific implementation manners are only a part of the implementation manners of the present utility model, rather than all the styles.

[0063] Embodiment 1: As Figures 1 to 7 shown, this embodiment discloses a vacuum plugging machine, including:

[0064] A frame 1, with a feeding port at the front end, and sealing edges 13 are provided at both the upper and lower ends around the feeding port. A vacuum extraction hole 14 is provided on one side of the middle part of the feeding port;

[0065] A sealing assembly 2, installed at the upper front side of the frame 1, can cooperate with the sealing edge 13 to isolate the inside of the frame 1 from the outside gas flow;

[0066] Sealing side doors 3, provided on both the left and right sides of the upper end of the frame 1, can isolate the inside of the frame 1 from the outside gas flow;

[0067] A vacuum pump 4, provided outside the frame 1, can evacuate the inside of the frame 1 and is connected to the vacuum extraction hole 14;

[0068] A translation assembly 6, including a first translation group 61 and a second translation group 62 that can move back and forth inside the frame 1. The first translation group 61 and the second translation group 62 do not interfere with each other during the back-and-forth movement through a height difference. The first translation group 61 and the second translation group 62 move back and forth synchronously in opposite directions under the drive of a translation drive group 63. Screen printing trays 64 that can move up and down are installed at the upper ends of the first translation group 61 and the second translation group 62;

[0069] A jacking assembly 5, provided directly below the feeding port. When the first translation group 61 or the second translation group 62 moves directly below the feeding port, the jacking assembly 5 can jack up the screen printing tray 64 located directly above it and make the screen printing tray 64 closely adhere to the sealing edge 13 at the lower end of the feeding port;

[0070] A screen printing assembly 7, located at the upper rear side of the frame 1. The first translation group 61 or the second translation group 62 can move directly below the screen printing assembly 7.

[0071] During use, first apply ink on the screen printing component 7, close the sealed side door 3, control the first translation group 61 to move to the front end, use the lifting component 5 to lift the screen printing tray 64 so that it forms a seal with the sealing edge 13 provided at the lower end of the feeding port. Then, start the vacuum pump 4 to evacuate the inside of the frame 1. At this time, the PCB board to be screen-printed and plugged with holes can be loaded onto the screen printing tray 64. Then, cover the sealing component 2 to contact the sealing edge 13 at the upper end of the feeding port to form a seal, and then control the vacuum pumping hole 14 to evacuate, so that the feeding port is also in a vacuum state. Then, the lifting component 5 can be controlled to retract, so that the screen printing tray 64 drops onto the first translation group 61. Then, control the first translation group 61 to move backward to the rear end through the translation drive group 63. At this time, the first translation group 61 is directly below the screen printing component 7, and the screen printing component 7 can be controlled to screen-print and plug holes on the PCB board, while the second translation group 62 is directly below the feeding port. First, the lifting component 5 is used to lift the screen printing tray 64 located above the second translation group 62 and form a seal. Then, the sealing component 2 can be controlled to open. At this time, the PCB board that has been screen-printed and plugged with holes on the screen printing tray 64 above the second translation group 62 can be taken out, and the PCB board to be screen-printed and plugged with holes can be loaded onto the screen printing tray 64 above the second translation group 62. After the loading is completed, control the sealing component 2 to press down to form a seal, use the vacuum pump 4 to evacuate the feeding port through the vacuum pumping hole 14, and then retract the lifting component 5. At the same time, the PCB board on the first translation group 61 has also completed the screen printing and plugging process. The positions of the first translation group 61 and the second translation group 62 can be swapped through the translation drive group 63 to perform the next round of screen printing and loading and unloading.

[0072] Embodiment 2: This embodiment further demonstrates its components on the basis of Embodiment 1, where: the sealing component 2 includes: a first sliding beam 21, installed at the upper front side of the frame 1; a sliding plate 22, slidably arranged on the first sliding beam 21 and capable of sliding left and right along the first sliding beam 21; a support plate 23, fixedly arranged on the front side of the sliding plate 22 and capable of sliding left and right following the sliding plate 22; four telescopic members 25, evenly distributed below the support plate 23; a sealing door panel 24, arranged below the support plate 23 and fixedly connected to the telescopic rod of the telescopic member 25, and capable of moving up and down under the drive of the telescopic member 25. The setting of the first sliding beam 21 and the sliding plate 22 enables the sealing component 2 to move to one side of the feeding port, thus facilitating the loading and unloading of the PCB board; the setting of the support plate 23 and the telescopic members 25 enables the sealing door panel 24 to move up and down to achieve the sealing and opening of the feeding port.

[0073] The first translation group 61 includes: a first slide rail 613 fixedly installed on both sides inside the frame 1; a first slide seat 611 slidably arranged on the first slide rail 613; a first platform 612 fixedly provided at the upper end of the first slide seat 611, and a screen printing tray 64 that can move up and down is installed at the upper end of the first platform 612;

[0074] The second translation group 62 includes: a second slide rail 623 fixedly installed on both sides inside the frame 1, located inside the first slide rail 613; a second slide seat 621 slidably arranged on the second slide rail 623, and the height of the second slide seat 621 is lower than the height of the first slide seat 611; a second platform 622 fixedly provided at the upper end of the second slide seat 621, and a screen printing tray 64 that can move up and down is installed at the upper end of the second platform 622.

[0075] The translation driving group 63 includes: a translation driving member 631 fixedly installed inside the frame 1; three groups of translation belts 632 that rotate in a cycle at the front and rear positions under the drive of the translation driving member 631; two groups of translation belts 632 located on the left and right sides are fixedly connected to the first slide seat 611, driving the first slide seat 611 to move back and forth along the first slide rail 613; one group of translation belts 632 located in the middle is fixedly connected to the second slide seat 621, driving the second slide seat 621 to move back and forth along the second slide rail 623.

[0076] The jacking assembly 5 includes: four groups of ejector rod guide sleeves 541 fixedly installed inside the frame 1 directly below the feeding port; ejector rods 54 slidably arranged inside the ejector rod guide sleeves 541, which can pass through the first translation group 61 or the second translation group 62 to jack up the screen printing tray 64; a top plate 53 fixedly provided at the lower end of the ejector rod 54, driving the ejector rod 54 to move up and down synchronously; a jacking guide rod 52 fixedly installed inside the frame 1 directly below the feeding port, and is slidably connected to the top plate 53 up and down; a jacking driving group 51 fixedly provided at the lower end of the jacking guide rod 52, which can drive the top plate 53 to slide up and down along the jacking guide rod 52; a first guide rod 55 is installed outside the first platform 612, and the first guide rod 55 is slidably connected to the screen printing tray 64 at the upper end of the first platform 612 up and down; a second guide rod 56 is installed outside the second platform 622, and the second guide rod 56 is slidably connected to the screen printing tray 64 at the upper end of the second platform 622 up and down.

[0077] The screen printing assembly 7 includes: a screen printing platform 71 located at the upper end of the rear side of the frame 1; a second sliding beam 72 fixedly provided on the left and right sides of the rear side of the frame 1, and a rack 721 is installed inside the second sliding beam 72; a cross beam 73 straddles the second sliding beam 72, and screen printing driving groups 731 meshing with the rack 721 are provided on both sides. A return oil plate 732 and a squeegee 733 are also installed on the cross beam 73.

[0078] The screen printing platform 71 further includes a handle 711, which facilitates the extraction of the screen printing platform 71 from the sealed side door 3.

[0079] On the outer sides of the left and right of the frame 1, there are pneumatic components 31 fixedly installed for pressing the sealed side door 3.

[0080] It further includes a control panel 11, which is arranged on the left side in front of the frame 1.

[0081] It further includes a machine top 12, which is fixedly arranged on the top surface of the frame 1 and is used to isolate the internal part of the frame 1 from the external gas flow.

[0082] It further includes lifting feet 15, which are fixedly arranged at the four corners of the top of the machine top 12, facilitating the hoisting and transfer of the equipment.

[0083] It further includes a vacuum tube 41, which is used to connect the inside of the frame 1 with the vacuum pump 4.

[0084] The above describes the main technical features, basic principles and related advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary specific embodiments, and can be implemented in other specific forms without departing from the concept or basic features of the present invention. Therefore, from any point of view, the above specific embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0085] In addition, it should be understood that although this specification is described according to each embodiment, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vacuum plugging machine, characterized in that, Comprising: A frame (1) with a feed inlet at the front end. Sealing edges (13) are provided at both the upper and lower ends around the feed inlet, and a vacuum extraction hole (14) is provided on one side of the middle part of the feed inlet; A sealing assembly (2) installed at the upper front side of the frame (1), which can cooperate with the sealing edge (13) to isolate the internal of the frame (1) from the external gas flow; Sealing side doors (3) provided on both the left and right sides of the upper end of the frame (1), which can isolate the internal of the frame (1) from the external gas flow; A vacuum pump (4) provided outside the frame (1), which can evacuate the inside of the frame (1) and is connected to the vacuum extraction hole (14); A translation assembly (6) includes a first translation group (61) and a second translation group (62) that can move back and forth inside the frame (1). The first translation group (61) and the second translation group (62) do not interfere with each other during the back-and-forth movement due to the height difference. The first translation group (61) and the second translation group (62) move synchronously in opposite directions back and forth under the drive of a translation drive group (63). Screen printing trays (64) that can move up and down are installed at the upper ends of the first translation group (61) and the second translation group (62); A lifting assembly (5) is provided directly below the feed inlet. When the first translation group (61) or the second translation group (62) moves to directly below the feed inlet, the lifting assembly (5) can lift the screen printing tray (64) located directly above it and make the screen printing tray (64) closely adhere to the sealing edge (13) at the lower end of the feed inlet; A screen printing assembly (7) is located at the upper rear side of the frame (1). The first translation group (61) or the second translation group (62) can move to directly below the screen printing assembly (7).

2. The vacuum plugging machine according to claim 1, wherein, The sealing assembly (2) includes: A first sliding beam (21) installed at the upper front side of the frame (1); A sliding plate (22) slidably arranged on the first sliding beam (21) and can slide left and right along the first sliding beam (21); A support plate (23) fixedly provided on the front side of the sliding plate (22) and can slide left and right along with the sliding plate (22); A plurality of telescopic members (25) are fixedly provided below the support plate (23); A sealing door panel (24) is provided below the support plate (23) and is fixedly connected to the telescopic rod of the telescopic member (25), and can move up and down under the drive of the telescopic member (25).

3. The vacuum plugging machine according to claim 1, wherein The first translation group (61) includes: A first slide rail (613) fixedly installed on both sides inside the frame (1); A first slide seat (611) slidably arranged on the first slide rail (613); A first platform (612) fixedly provided at the upper end of the first slide seat (611). A screen printing tray (64) that can move up and down is installed at the upper end of the first platform (612); The second translation group (62) includes: A second slide rail (623) fixedly installed on both sides inside the frame (1), located inside the first slide rail (613); A second slide seat (621) slidably arranged on the second slide rail (623). The height of the second slide seat (621) is lower than the height of the first slide seat (611); The second platform (622) is fixedly arranged at the upper end of the second sliding seat (621), and a screen printing tray (64) that can move up and down is installed at the upper end of the second platform (622).

4. A vacuum plugging machine according to claim 3, characterized in that, The translation drive group (63) includes: A translation drive member (631) fixedly installed inside the frame (1); There are three groups of translation belts (632), which rotate in a cycle at the front and rear positions under the drive of the translation drive member (631); The two groups of translation belts (632) located on the left and right sides are fixedly connected to the first sliding seat (611), driving the first sliding seat (611) to move back and forth along the first slide rail (613); The group of translation belts (632) located in the middle is fixedly connected to the second sliding seat (621), driving the second sliding seat (621) to move back and forth along the second slide rail (623).

5. The vacuum plugging machine according to claim 3, characterized in that, The jacking assembly (5) includes: A plurality of ejector rod guide sleeves (541) fixedly installed inside the frame (1) directly below the feed inlet; An ejector rod (54) slidably arranged inside the ejector rod guide sleeve (541), which can pass through the first translation group (61) or the second translation group (62) to jack up the screen printing tray (64); A top plate (53) fixedly arranged at the lower end of the ejector rod (54), driving the ejector rod (54) to move up and down synchronously; A jacking guide rod (52) fixedly installed inside the frame (1) directly below the feed inlet, and is slidably connected to the top plate (53) up and down; A jacking drive group (51) fixedly arranged at the lower end of the jacking guide rod (52), which can drive the top plate (53) to slide up and down along the jacking guide rod (52).

6. The vacuum plug hole machine according to claim 5, characterized in that, A first guide rod (55) is installed outside the first platform (612), and the first guide rod (55) is slidably connected to the screen printing tray (64) at the upper end of the first platform (612) up and down; A second guide rod (56) is installed outside the second platform (622), and the second guide rod (56) is slidably connected to the screen printing tray (64) at the upper end of the second platform (622) up and down.

7. A vacuum plugging machine according to claim 1, characterized in that, The screen printing assembly (7) includes: A screen printing platform (71) located at the upper end of the rear side of the frame (1); A second sliding beam (72) fixedly arranged on the left and right sides of the rear side of the frame (1), and a rack (721) is installed inside the second sliding beam (72); A cross beam (73) straddles the second sliding beam (72), and screen printing drive groups (731) meshing with the rack (721) are arranged on both sides.

8. A vacuum plugging machine according to claim 7, wherein, An oil return plate (732) and a squeegee (733) are also installed on the cross beam (73).

9. The vacuum plugging machine according to claim 7, wherein, The screen printing platform (71) also includes a handle (711) to facilitate pulling out the screen printing platform (71) from the sealed side door (3).

10. A vacuum plugging machine according to claim 1, characterized in that, Pneumatic components (31) for pressing the sealed side door (3) are fixedly installed on the left and right sides outside the frame (1); It also includes a control panel (11) arranged on the front left side of the frame (1); It also includes a machine top (12) fixedly arranged on the top surface of the frame (1) for isolating the internal and external gas circulation of the frame (1); It also includes lifting feet (15), and the lifting feet (15) are fixedly arranged at the four corners of the top of the machine top (12); It further includes a vacuum tube (41) for connecting the interior of the frame (1) to the vacuum pump (4).

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