A silk-screen printing device with full-automatic feeding and discharging functions

Abstract

This utility model discloses a screen printing equipment with fully automatic loading and unloading function, including loading and unloading mechanisms and a screen printing machine. Each loading and unloading mechanism includes a first frame, a page-turning module, a first material transfer module, and a central conveying module. The first frame is equipped with a loading and unloading station. The page-turning module, the first material transfer module, and the central conveying module are all located on the first frame, with one end of the central conveying module close to the loading and unloading station. The first material transfer module is used to transport workpieces between the loading and unloading station and the central conveying module. The screen printing machine is located between the two loading and unloading mechanisms and is connected to the central conveying modules of the two loading and unloading mechanisms. The loading and unloading station is used to place a multi-layer rack, and the page-turning module is used to flip and open the workpiece placement rack of the multi-layer rack. The screen printing equipment provided by this utility model can automatically pick up or unload materials from the multi-layer rack, realizing fully automatic loading and unloading of the screen printing equipment, meeting independent production needs, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to printing equipment, and in particular to a screen printing equipment with fully automatic loading and unloading functions. Background Technology

[0002] Traditional screen printing equipment mainly includes screen printing machines, which are typically connected to upstream and downstream equipment to form a production line. Screen printing machines can directly pick up or unload materials from the conveyor systems of these upstream and downstream equipment. Currently, some manufacturers adopt a separate production model for each piece of equipment, allowing each machine to process different boards independently, thereby improving production efficiency. Boards are stored in multi-layer racks during production and then circulated between machines using these racks. While traditional screen printing equipment can directly pick up or unload materials from the conveyor systems, it cannot automatically pick up or unload materials from the multi-layer racks. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a screen printing equipment with fully automatic loading and unloading function, which can automatically pick up or unload materials from the multi-layer frame, realize fully automatic loading and unloading of screen printing equipment, meet independent production needs, and improve production efficiency.

[0004] According to an embodiment of the present invention, a screen printing equipment with fully automatic loading and unloading function includes a loading and unloading mechanism and a screen printing machine. Each loading and unloading mechanism includes a first frame, a page-turning module, a first material transfer module, and a central conveying module. The first frame is equipped with a loading and unloading station. The page-turning module, the first material transfer module, and the central conveying module are all disposed on the first frame. One end of the central conveying module is close to the loading and unloading station. The first material transfer module is used to transport workpieces between the loading and unloading station and the central conveying module. The screen printing machine is disposed between two loading and unloading mechanisms and is connected to the central conveying modules of the two loading and unloading mechanisms. The loading and unloading station is used to place a multi-layer rack. The page-turning module is used to flip and open the workpiece placement rack of the multi-layer rack. The central conveying module of one loading and unloading mechanism is used to provide workpieces to the screen printing machine, and the central conveying module of the other loading and unloading mechanism is used to receive workpieces output by the screen printing machine.

[0005] The screen printing equipment with fully automatic loading and unloading function according to the embodiments of this utility model has at least the following beneficial effects: In the screen printing equipment provided by this utility model, the screen printing machine can pick up or unload materials from the central conveying module, and the loading and unloading mechanism can cooperate with the first material transfer module through the page turning module to complete the transfer of workpieces between the multi-layer rack and the central conveying module. Thus, the screen printing equipment provided by this utility model, by setting the screen printing machine between the two loading and unloading mechanisms and connecting the screen printing machine with the central conveying device of the two loading and unloading mechanisms, allows the screen printing machine to automatically pick up materials from one multi-layer rack through one loading and unloading mechanism and automatically unload materials from another multi-layer rack through the other loading and unloading mechanism, thereby realizing fully automatic loading and unloading of the screen printing equipment, meeting independent production needs, and improving production efficiency. In addition, the screen printing equipment provided by this utility model can also use the central conveying module to connect with the conveying devices of other equipment.

[0006] According to some embodiments of the present invention, in the loading and unloading mechanism, the loading and unloading station includes a receiving space for accommodating the multi-layer rack, the receiving space is disposed at one end of the first frame, one end of the central conveying module is close to the receiving space, and the other end of the central conveying module extends to the other end of the first frame.

[0007] According to some embodiments of the present invention, an electromagnetic positioning module is provided on the side wall of the accommodating space, and the electromagnetic positioning module is used to adsorb and fix the multi-layer shelf.

[0008] According to some embodiments of the present invention, the centering conveying module includes a centering component, a roller conveying component, and a first driver. The roller conveying component includes a plurality of first rotating rollers arranged side by side. The first driver is used to drive the first rotating rollers to rotate. The centering component includes a second driver and two push rods disposed on one side of one of the first rotating rollers. The second driver is capable of driving the two push rods to slide relative to each other or move away from each other along the circumference of the first rotating roller.

[0009] According to some embodiments of the present invention, the central conveying module further includes a belt conveyor assembly, the roller conveyor assembly is connected to the loading and unloading station, the belt conveyor assembly is located on the side of the roller conveyor assembly away from the loading and unloading station, the belt conveyor assembly is connected to the roller conveyor assembly, and the first driver is connected to the belt conveyor assembly in a driving connection.

[0010] According to some embodiments of the present invention, the belt conveyor assembly includes multiple drive rollers and multiple conveyor belts. The conveyor belts are sleeved on all the drive rollers and drively cooperate with the drive rollers. All the conveyor belts are spaced apart along the axial direction of the drive rollers.

[0011] According to some embodiments of the present invention, the first material transfer module includes a first moving device, a rotating device, and an adsorption device. The rotating device is installed on the first moving device, and the adsorption device is installed on the rotating device. The first moving device is used to drive the rotating device to move in the up-down direction, the left-right direction, and the front-back direction. The rotating device is used to drive the adsorption device to rotate horizontally. The adsorption device is used to adsorb the workpiece.

[0012] According to some embodiments of the present invention, the page-turning module includes a lifting device, a rotating device, and an extending device. The lifting device is installed on the first frame, the rotating device is installed on the lifting device, and the extending device is installed on the rotating device. A page-turning lever is provided on the extending device, and the extending device is used to drive the page-turning lever to move toward the shelf.

[0013] According to some embodiments of the present invention, the screen printing machine includes a second frame, the second frame being provided with a printing worktable, a material picking module, a material discharging module, and a second moving device, the second moving device being equipped with a printing device, the second moving device being used to drive the printing device to move horizontally and rise and fall above the printing worktable, the printing worktable being located between the material picking module and the material discharging module, wherein the material picking module is used to transport the workpiece from one of the central conveying modules to the printing worktable, and the material discharging module is used to transport the workpiece from the printing worktable to the other central conveying module.

[0014] According to some embodiments of the present invention, the second moving device includes a printing frame, a transverse component mounted on the printing frame, and a servo motor. The printing frame is slidably mounted on the second frame, the servo motor is mounted on the second frame, the servo motor is driven by a connecting rod, the connecting rod is rotatably connected to the printing frame, and the printing device is mounted on the transverse component.

[0015] Additional aspects and advantages of this 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 above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of a screen printing equipment with fully automatic loading and unloading functions according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1A schematic diagram of one side of the loading and unloading mechanism of a screen printing equipment with fully automatic loading and unloading function is shown.

[0019] Figure 3 for Figure 1 A schematic diagram of the other side of the loading and unloading mechanism of a screen printing equipment with fully automatic loading and unloading functions is shown.

[0020] Figure 4 for Figure 2 A schematic diagram of the central conveying module of the loading and unloading mechanism is shown;

[0021] Figure 5 for Figure 2 A schematic diagram of the page-turning module of the loading and unloading mechanism is shown;

[0022] Figure 6 for Figure 2 A schematic diagram of the first material transfer module of the loading and unloading mechanism is shown;

[0023] Figure 7 This is a schematic diagram of a multi-tiered shelf;

[0024] Figure 8 for Figure 1 A schematic diagram of the front side of a screen printing machine with fully automatic loading and unloading functions is shown.

[0025] Figure 9 for Figure 1 The diagram shows the rear side of a screen printing machine with fully automatic loading and unloading functions.

[0026] Figure label:

[0027] Loading / unloading mechanism 100, first frame 110, loading / unloading station 111, page turning module 120, lifting device 121, rotating device 122, extending device 123, page turning lever 124, first material transfer module 130, first moving device 131, left / right moving assembly 1311, up / down moving assembly 1312, front / back moving assembly 1313, rotary device 132, adsorption device 133, centering conveyor module 140, roller conveyor assembly 141, first rotating roller 1411, centering assembly 142, ... Two-drive unit 1421, push rod 1422, belt conveyor assembly 143, drive roller 1431, conveyor belt 1432, electromagnetic positioning module 150, screen printing machine 200, second frame 210, printing worktable 220, material handling module 230, third moving device 231, suction cup device 232, second moving device 240, printing rack 241, transverse moving assembly 242, servo motor 243, connecting rod 244, printing device 250, discharge module 260, multi-layer rack 300, workpiece placement rack 310. Detailed Implementation

[0028] The embodiments of this utility model 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 this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module 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 limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figure 7 The multi-layer rack 300 has multiple layers of workpiece placement racks 310 that can be flipped up and down. Each layer of workpiece placement rack 310 is used to place one workpiece. When it is necessary to put or take out a workpiece in a certain layer of workpiece placement rack 310, simply flip all the workpiece placement racks 310 above that layer of workpiece placement rack 310 upwards to put or take out the workpiece in that layer of workpiece placement rack 310.

[0033] Reference Figures 1 to 3According to an embodiment of the present invention, a screen printing equipment with fully automatic loading and unloading function includes a loading and unloading mechanism 100 and a screen printing machine 200. Each loading and unloading mechanism 100 includes a first frame 110, a page-turning module 120, a first material transfer module 130, and a centering conveyor module 140. The first frame 110 is equipped with a loading and unloading station 111. The page-turning module 120, the first material transfer module 130, and the centering conveyor module 140 are all disposed on the first frame 110. One end of the centering conveyor module 140 is close to the loading and unloading station 111. The first material transfer module 130 is used to load and unload materials at the loading and unloading station. Workpieces are conveyed between the loading / unloading station 111 and the central conveying module 140; the screen printing machine 200 is set between the two loading / unloading mechanisms 100, and the screen printing machine 200 is connected to the central conveying module 140 of the two loading / unloading mechanisms 100; wherein, the loading / unloading station 111 is used to place the multi-layer rack 300, and the page turning module 120 is used to flip the workpiece placement rack 310 of the multi-layer rack 300 up and down; the central conveying module 140 of one loading / unloading mechanism 100 is used to provide workpieces to the screen printing machine 200, and the central conveying module 140 of the other loading / unloading mechanism 100 is used to receive the workpieces output by the screen printing machine 200.

[0034] In the specific operation process, when the loading and unloading mechanism 100 needs to transport the workpieces on a certain layer of the workpiece placement rack 310 of the multi-layer rack 300 to the central conveying device, the page-turning module 120 can flip all the workpiece placement racks 310 above that layer of workpiece placement rack 310 upwards and open them. Then, the first material transfer module 130 takes out the workpieces on that layer of workpiece placement rack 310 and transfers them to the central conveying module 140. When the loading and unloading mechanism 100 needs to transport the workpieces from the central conveying device to a certain layer of the workpiece placement rack 310 of the multi-layer rack 300, the page-turning module 120 can flip all the workpiece placement racks 310 above that layer of workpiece placement rack 310 upwards and open them. Then, the first material transfer module 130 transfers the workpieces from the central conveying module 140 to that layer of workpiece placement rack 310.

[0035] In the screen printing equipment provided by this utility model, the screen printing machine 200 can pick up or unload materials from the central conveying module 140. The loading and unloading mechanism 100 can cooperate with the first material transfer module 130 through the page turning module 120 to complete the transfer of workpieces between the multi-layer rack 300 and the central conveying module 140. Thus, the screen printing equipment provided by this utility model, by setting the screen printing machine 200 between the two loading and unloading mechanisms 100 and connecting the screen printing machine 200 with the central conveying device of the two loading and unloading mechanisms 100, allows the screen printing machine 200 to automatically pick up materials from one multi-layer rack 300 through one loading and unloading mechanism 100 and automatically unload materials from another multi-layer rack 300 through the other loading and unloading mechanism 100. This achieves fully automatic loading and unloading of the screen printing equipment, meets independent production needs, and improves production efficiency. In addition, the screen printing equipment provided by this utility model can also use the central conveying module 140 to connect with the conveying devices of other equipment, retaining the function of forming a production line with other equipment for online production.

[0036] Reference Figure 2 and Figure 3 According to some embodiments of this utility model, in the loading and unloading mechanism 100, the loading and unloading station 111 includes a receiving space for accommodating the multi-layer rack 300. The receiving space is located at one end of the first frame 110, one end of the central conveying module 140 is close to the receiving space, and the other end of the central conveying module 140 extends to the other end of the first frame 110. With the above arrangement, the central conveying module 140 can be easily connected to the screen printing machine 200. In addition, the receiving space can also be used to accommodate the conveying devices of other equipment, thereby facilitating the connection of the central conveying module 140 with the conveying devices of other equipment.

[0037] Reference Figure 2 According to some embodiments of this utility model, an electromagnetic positioning module 150 is provided on the side wall of the accommodating space. The electromagnetic positioning module 150 is used to adsorb and fix the multi-layer rack 300. Thus, the multi-layer rack 300 can be positioned by the electromagnetic positioning module 150, ensuring accurate loading or unloading positions. When the multi-layer rack 300 needs to be moved, the multi-layer rack 300 can be moved simply by turning off the power to the electromagnetic positioning module 150, making it more convenient to use.

[0038] Reference Figure 2 and Figure 4According to some embodiments of the present invention, the centering conveying module 140 includes a centering component 142, a roller conveying component 141, and a first driver. The roller conveying component 141 includes a plurality of first rotating rollers 1411 arranged side by side. The first driver is used to drive the first rotating rollers 1411 to rotate. The centering component 142 includes a second driver 1421 and two push rods 1422 disposed on one side of one of the first rotating rollers 1411. The second driver 1421 can drive the two push rods 1422 to slide relative to each other or move away from each other along the circumference of the first rotating rollers 1411. Thus, when the workpiece is transferred to the roller conveying component 141, the two push rods 1422 of the centering component 142, driven by the second driver 1421, can push the workpiece to the center position.

[0039] Reference Figure 4 According to some embodiments of this utility model, the centering conveyor module 140 further includes a belt conveyor assembly 143, a roller conveyor assembly 141 connected to the loading / unloading station 111, and the belt conveyor assembly 143 located on the side of the roller conveyor assembly 141 away from the loading / unloading station 111. The belt conveyor assembly 143 is connected to the roller conveyor assembly 141, and the first driver is connected to the belt conveyor assembly 143 for transmission. Therefore, during the process of the screen printing machine 200 picking up material from the centering conveyor module 140, the roller conveyor assembly 141 of the centering conveyor module 140 can convey the centered workpiece to the belt conveyor assembly 143. On the belt conveyor assembly 143, there is no relative movement between the workpiece and the conveyor belt 1432 of the belt conveyor assembly 143, ensuring that the workpiece does not shift position on the belt conveyor assembly 143. Then, the screen printing machine 200 picks up material from the belt conveyor assembly 143, thereby ensuring accurate positioning when the screen printing machine 200 picks up material. The screen printing machine 200 picks up material from the belt conveyor assembly 143 instead of directly from the roller conveyor assembly 141, which avoids interference between the material picking up by the screen printing machine 200 and the centering operation of the centering conveyor module 140.

[0040] Reference Figure 4 According to some embodiments of the present invention, the belt conveyor assembly 143 includes a plurality of drive rollers 1431 and a plurality of conveyor belts 1432. The conveyor belts 1432 are sleeved on all the drive rollers 1431 and drive the drive rollers 1431. All the conveyor belts 1432 are spaced apart along the axial direction of the drive rollers 1431. Each conveyor belt 1432 has a smaller width, thereby reducing the contact between the belt conveyor assembly 143 and the workpiece.

[0041] During the process of the screen printing machine 200 outputting workpieces to the feeding mechanism 100, the screen printing machine 200 conveys the workpieces to the belt conveyor assembly 143. Then, the first transfer device directly picks up the workpieces from the belt conveyor assembly 143 without the workpieces needing to be moved to the roller conveyor assembly 141. After the page turning module 120 completes the flipping and opening of the workpiece placement rack 310, the first transfer device transfers the workpieces to the corresponding workpiece placement rack 310. This reduces the friction between the screen-printed workpieces and other components.

[0042] It should be noted that the above-mentioned centering conveyor module 140 can also be configured in other ways. For example, the centering conveyor module 140 includes a belt conveyor assembly 143 and two push plates disposed above the belt conveyor assembly 143. The two push plates can move relative to each other or move away from each other under the push of a cylinder.

[0043] Reference Figure 2 , Figure 3 and Figure 6 According to some embodiments of the present invention, the first material transfer module 130 includes a first moving device 131, a rotating device 132, and an adsorption device 133. The rotating device 132 is mounted on the first moving device 131, and the adsorption device 133 is mounted on the rotating device 132. The first moving device 131 is used to drive the rotating device 132 to move in the up-down, left-right, and front-back directions. The rotating device 132 is used to drive the adsorption device 133 to rotate horizontally. The adsorption device 133 is used to adsorb the workpiece. Thus, the first moving device 131 can move along three axes. With the rotation of the rotating device 132, the first material transfer module 130 can complete the four-axis movement of the adsorption device 133, thereby improving the material transfer accuracy.

[0044] Reference Figure 2 and Figure 6 The first moving device 131 includes a left-right moving component 1311 installed on the first frame 110, a right-right moving component 1312 installed on the left-right moving component 1311, and a left-right moving component 1313 installed on the right-right moving component 1312. The rotating device 132 is installed on the left-right moving component 1313. Thus, each moving component and the rotating device 132 can work simultaneously to improve the working speed.

[0045] It should be noted that in some other embodiments, the first material transfer module 130 described above may also adopt other configurations. For example, the first material transfer module 130 may include a left-right moving component 1311, a right-right moving component 1312, and the adsorption device 133 described above. The left-right moving component 1311 is used to drive the right-right moving component 1312 to move between the loading / unloading station 111 and the centering conveying module 140. The right-right moving component 1312 is used to drive the adsorption device 133 to rise and fall. Thus, the first material transfer module 130 may also complete the transfer of workpieces between the loading / unloading station 111 and the centering conveying module 140. When the first material transfer module 130 transfers the workpiece to the centering conveying module 140, the positional deviation of the workpiece in the front-back direction may be corrected by the centering operation of the centering conveying module 140.

[0046] Reference Figure 2 and Figure 5 According to some embodiments of this utility model, the page-turning module 120 includes a lifting device 121, a rotating device 122, and an extending device 123. The lifting device 121 is mounted on the first frame 110, the rotating device 122 is mounted on the lifting device 121, and the extending device 123 is mounted on the rotating device 122. A page-turning lever 124 is provided on the extending device 123, which is used to drive the page-turning lever 124 to move toward the shelf 300. Thus, the lifting device 121 can realize the up and down movement of the page-turning lever 124 so that the page-turning lever 124 can be moved to below the workpiece placement rack 310 that needs to be turned. Then, the extending device 123 drives the page-turning lever 124 to move and insert it below the workpiece placement rack 310. Then, the rotating device 122 drives the page-turning lever 124 to turn, and then the page-turning lever 124 pushes the workpiece placement rack 310 to turn. With the above settings, the page turning module 120 can realize the fully automatic and smooth flipping of any workpiece placement rack 310 of the multi-layer rack 300.

[0047] In the specific implementation process, the page turning module 120 is set on one side wall of the accommodating space, and the page turning module 120 is close to the rotation axis of the workpiece placement rack 310.

[0048] It should be noted that in some other embodiments, the page-turning module 120 may also adopt other configuration methods. For example, the page-turning module 120 includes a lifting device 121, an extension device 123, and a page-turning lever 124 disposed on the extension device 123. During the page-turning process, the lifting device 121 first drives the extension device 123 and the page-turning lever 124 to rise and fall to the required position. Then, the extension device 123 drives the page-turning lever 124 to insert below the corresponding workpiece placement rack 310. Then, the lifting device 121 drives the page-turning lever 124 to rise, so that the workpiece placement rack 310 can be flipped upward.

[0049] Reference Figure 1 , Figure 8 and Figure 9 According to some embodiments of this utility model, the screen printing machine 200 includes a second frame 210, which is equipped with a printing worktable 220, a material handling module 230, a material discharging module 260, and a second moving device 240. The second moving device 240 is equipped with a printing device 250 and is used to drive the printing device 250 to move horizontally and vertically above the printing worktable 220. The printing worktable 220 is located between the material handling module 230 and the material discharging module 260. The material handling module 230 is used to transport workpieces from one of the central conveying modules 140 to the printing worktable 220, and the material discharging module 260 is used to transport workpieces from the printing worktable 220 to the other central conveying module 140. With the above configuration, the screen printing machine 200 can complete the material handling or discharging from the central conveying device and complete the screen printing work on the printing worktable 220.

[0050] Reference Figure 8 and Figure 9 According to some embodiments of this utility model, the second moving device 240 includes a printing frame 241, a transverse moving assembly 242 mounted on the printing frame 241, and a servo motor 243. The printing frame 241 is slidably mounted on the second frame 210. The servo motor 243 is mounted on the second frame 210 and located below the printing worktable 220. The servo motor 243 is driven by a connecting rod 244, which is rotatably connected to the printing frame 241. The printing device 250 is mounted on the transverse moving assembly 242. Since the lifting and lowering of the printing frame 241 is driven by the servo motor 243, the lifting and lowering speed of the printing frame 241 can be accelerated, ensuring shorter loading / unloading and printing times, saving time, and improving production efficiency.

[0051] According to some embodiments of the present invention, both the material picking module 230 and the material discharging module 260 include a third moving device 231 and a suction cup device 232 installed on the third moving device 231. Thus, it can be ensured that the material picking module 230 picks up materials quickly and the material discharging module 260 discharges materials quickly.

[0052] 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.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A silk screen printing device with full-automatic feeding and discharging function, characterized in that, include: Two loading and unloading mechanisms (100) are provided. Each loading and unloading mechanism (100) includes a first frame (110), a page-turning module (120), a first material transfer module (130), and a centering conveyor module (140). The first frame (110) is equipped with a loading and unloading station (111). The page-turning module (120), the first material transfer module (130), and the centering conveyor module (140) are all located on the first frame (110). One end of the centering conveyor module (140) is close to the loading and unloading station (111). The first material transfer module (130) is used to transport workpieces between the loading and unloading station (111) and the centering conveyor module (140). A screen printing machine (200) is disposed between the two loading and unloading mechanisms (100), and the screen printing machine (200) is connected to the central conveying module (140) of the two loading and unloading mechanisms (100); The loading / unloading station (111) is used to place the multi-layer rack (300), and the page-turning module (120) is used to flip the multi-layer rack (300) up and down to open the workpiece placement rack (310). The centering conveying module (140) of one loading / unloading mechanism (100) is used to provide workpieces to the screen printing machine (200), and the centering conveying module (140) of the other loading / unloading mechanism (100) is used to receive workpieces output by the screen printing machine (200).

2. The silk-screen printing device with full-automatic feeding and discharging function according to claim 1, characterized in that, In the loading and unloading mechanism (100), the loading and unloading station (111) includes a accommodating space for accommodating the multi-layer rack (300), the accommodating space is located at one end of the first frame (110), one end of the central conveying module (140) is close to the accommodating space, and the other end of the central conveying module (140) extends to the other end of the first frame (110).

3. The silk-screen printing device with full-automatic loading and unloading function according to claim 2, characterized in that, An electromagnetic positioning module (150) is provided on the side wall of the accommodating space, and the electromagnetic positioning module (150) is used to adsorb and fix the multi-layer rack (300).

4. The silk-screen printing device with full-automatic loading and unloading function according to claim 1, characterized in that, The centering conveying module (140) includes a centering component (142), a roller conveying component (141), and a first driver. The roller conveying component (141) includes a plurality of first rotating rollers (1411) arranged side by side. The first driver is used to drive the first rotating rollers (1411) to rotate. The centering component (142) includes a second driver (1421) and two push rods (1422) disposed on one side of one of the first rotating rollers (1411). The second driver (1421) can drive the two push rods (1422) to slide relative to each other or move away from each other along the circumference of the first rotating roller (1411).

5. The silk-screen printing device with full-automatic loading and unloading function according to claim 4, characterized in that, The central conveying module (140) further includes a belt conveyor assembly (143), the roller conveyor assembly (141) is connected to the loading / unloading station (111), the belt conveyor assembly (143) is located on the side of the roller conveyor assembly (141) away from the loading / unloading station (111), the belt conveyor assembly (143) is connected to the roller conveyor assembly (141), and the first driver is connected to the belt conveyor assembly (143) in a transmission connection.

6. A screen printing equipment with fully automatic loading and unloading function according to claim 5, characterized in that, The belt conveyor assembly (143) includes multiple drive rollers (1431) and multiple conveyor belts (1432). The conveyor belts (1432) are sleeved on all the drive rollers (1431) and drive the drive rollers (1431). All the conveyor belts (1432) are spaced apart along the axial direction of the drive rollers (1431).

7. The silk-screen printing device with full-automatic loading and unloading function according to claim 1, characterized in that, The first material transfer module (130) includes a first moving device (131), a rotating device (132), and an adsorption device (133). The rotating device (132) is installed on the first moving device (131), and the adsorption device (133) is installed on the rotating device (132). The first moving device (131) is used to drive the rotating device (132) to move in the up-down, left-right, and front-back directions. The rotating device (132) is used to drive the adsorption device (133) to rotate horizontally. The adsorption device (133) is used to adsorb the workpiece.

8. The silk-screen printing device with full-automatic loading and unloading function according to claim 1, characterized in that, The page-turning module (120) includes a lifting device (121), a rotating device (122), and an extending device (123). The lifting device (121) is installed on the first frame (110), the rotating device (122) is installed on the lifting device (121), and the extending device (123) is installed on the rotating device (122). The extending device (123) is provided with a page-turning lever (124), which is used to drive the page-turning lever (124) to move toward the shelf (300).

9. The silk-screen printing device with full-automatic loading and unloading function according to claim 1, characterized in that, The screen printing machine (200) includes a second frame (210), which is provided with a printing worktable (220), a material picking module (230), a material discharging module (260), and a second moving device (240). The second moving device (240) is equipped with a printing device (250). The second moving device (240) is used to drive the printing device (250) to move horizontally and rise and fall above the printing worktable (220). The printing worktable (220) is located between the material picking module (230) and the material discharging module (260). The material picking module (230) is used to transport the workpiece from one of the central conveying modules (140) to the printing worktable (220), and the material discharging module (260) is used to transport the workpiece from the printing worktable (220) to the other central conveying module (140).

10. The silk-screen printing device with full-automatic loading and unloading function according to claim 9, characterized in that, The second moving device (240) includes a printing frame (241), a transverse component (242) mounted on the printing frame (241), and a servo motor (243). The printing frame (241) is slidably mounted on the second frame (210). The servo motor (243) is mounted on the second frame (210). The servo motor (243) is driven by a connecting rod (244). The connecting rod (244) is rotatably connected to the printing frame (241). The printing device (250) is mounted on the transverse component.

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