Plate labeling device and plate labeling method

Abstract

The invention discloses a plate labeling device and a plate labeling method. The plate labeling device comprises a rack, a carrier mechanism, a turnover carrying feeding mechanism, a discharging mechanism, a label supply mechanism, a label adsorption mechanism and a pressure maintaining mechanism. The carrier mechanism comprises a U-shaped carrier plate provided with an avoiding groove. The overturning carrying feeding mechanism comprises a second base, a second linear guide rail vertically arranged on the second base, a lifting frame arranged on the second linear guide rail in a sliding mode, a second air cylinder arranged on the second base and used for driving the lifting frame to ascend and descend, and a rotating rod rotationally arranged on the lifting frame. The motor is arranged on the lifting frame and used for driving the rotating rod to rotate, the overturning frame is fixedly arranged on the rotating rod, the second suction cups are arranged on the overturning frame, and the overturning frame can rotate to the avoiding groove. The device has the advantages that the whole device is simple in structure, the area needed by the overturning carrying mechanism and the carrier mechanism can be reduced by rotating the overturning carrying feeding mechanism to the coverage range of the carrier mechanism, and the size of the whole device is reduced.

Description

Technical Field

[0001] This invention relates to the field of labeling, specifically to a labeling device and method for sheet metal. Background Technology

[0002] In existing labeling equipment, the loading mechanism responsible for receiving products is a robotic arm or a multi-axis transfer mechanism, while the carrier mechanism is responsible for transporting products to the labeling mechanism. To avoid interference, the carrier mechanism and the robotic arm or multi-axis transfer mechanism need a sufficiently large space, which makes the entire equipment large in size and occupies a large area.

[0003] Therefore, it is necessary to provide a board labeling device and a board labeling method. Summary of the Invention

[0004] The present invention provides a labeling device and method for sheet materials, which effectively solves the problem of large footprint of existing labeling equipment.

[0005] The technical solution adopted in this invention is: a labeling device for sheet metal, including a frame, a carrier mechanism disposed on the frame, a flipping and conveying loading mechanism and a loading mechanism disposed at both ends of the carrier mechanism, a label feeding mechanism disposed on one side of the carrier mechanism, a label adsorption mechanism disposed on the frame, and a pressure holding mechanism.

[0006] Furthermore, the carrier mechanism includes a first support frame mounted on the frame, a first linear guide rail and a first linear module mounted on the first support frame along the X-axis, and a U-shaped carrier plate slidably connected to the first linear guide rail and driven by the first linear module. The first linear guide rail and the first linear module are arranged along the Y-axis. The U-shaped carrier plate is provided with a clearance groove for avoiding the tilting and conveying loading mechanism. The first linear guide rail and the first linear module are located on both sides of the clearance groove.

[0007] Furthermore, the flipping and conveying loading mechanism includes a second base mounted on the frame, a second linear guide rail mounted vertically on the second base, a lifting frame slidably mounted on the second linear guide rail, a second cylinder mounted on the second base for driving the lifting frame to rise and fall, a rotating rod mounted on the lifting frame, a motor mounted on the lifting frame for driving the rotating rod to rotate, a flipping frame fixedly mounted on the rotating rod, and several second suction cups mounted on the flipping frame. The flipping frame can rotate to the clearance groove.

[0008] Furthermore, the motor drives the rotating rod, the flipping frame, and the second suction cup to rotate 180°, the second cylinder drives the lifting frame, the rotating rod, the motor, the flipping frame, and the second suction cup to rise and fall, the second suction cup adsorbs the product and then flips 180° with the flipping frame to be located in the clearance groove, and the flipping frame descends so that the product is supported by the U-shaped carrier plate.

[0009] Furthermore, the pressure holding mechanism includes a first pressure holding component and a second pressure holding component that are respectively arranged on both sides of the carrier mechanism and have the same structure. The first pressure holding component includes a No. 3 seat arranged on the frame, a No. 3 cylinder arranged vertically on the No. 3 seat, and a No. 3 pressure plate arranged at the output end of the No. 3 cylinder.

[0010] Furthermore, the label feeding mechanism includes a first label peeling mechanism and a second label peeling mechanism that are identical in structure and are mounted on the frame. The first label peeling mechanism includes a No. 4 seat mounted on the frame, an unwinding assembly mounted on the No. 4 seat, a rewinding assembly mounted on the No. 4 seat, a feeder assembly mounted on the No. 4 seat, and a label receiving platform mounted on the No. 4 seat.

[0011] Furthermore, the label adsorption mechanism includes a robotic arm mounted on a frame, a mounting frame mounted on the robotic arm, an upper CCD camera mounted on the mounting frame, and a first adsorption component and a second adsorption component mounted on the mounting frame. The first adsorption component and the second adsorption component adsorb the labels on the first label peeling mechanism and the second label peeling mechanism, respectively. A lower CCD camera is also mounted on the frame.

[0012] Furthermore, the first adsorption component includes a fifth cylinder vertically mounted on the mounting frame, a top plate mounted on the output end of the fifth cylinder, several guide pins slidably mounted on the top plate, a bottom plate connecting the lower ends of the guide pins, springs sleeved on the guide pins, and a suction nozzle mounted on the lower end of the bottom plate. The upper end of the guide pin is provided with a limiting head, and the two ends of the spring abut against the bottom plate and the top plate respectively.

[0013] Furthermore, the unloading mechanism includes a good product conveyor line, a waste material discharge port, and a transfer assembly mounted on the frame. The transfer assembly includes a No. 6 base mounted on the frame, a No. 6 linear module A mounted on the No. 6 base along the Y-axis, a No. 6 linear module B mounted at the output end of the No. 6 linear module A along the X-axis, a No. 6 plate mounted at the output end of the No. 6 linear module B, a No. 6 cylinder mounted vertically on the No. 6 plate, a No. 6 frame mounted at the output end of the No. 6 cylinder, and several No. 6 suction cups mounted on the No. 6 frame.

[0014] A method for labeling sheet metal, using the aforementioned sheet metal labeling device, includes the following steps: a flipping and conveying feeding mechanism flips to the side away from the carrier mechanism and connects with an external mechanism; the flipping and conveying feeding mechanism picks up the product from the external mechanism and then flips it 180°, at which point the product is above the flipping and conveying feeding mechanism; then the flipping and conveying feeding mechanism places the product in the carrier mechanism; subsequently, the carrier mechanism transports the product to the label receiving position; then, the label adsorption mechanism affixes the label from the label feeding mechanism to the product; a pressure holding mechanism holds pressure on the product and the label; finally, the carrier mechanism transports the labeled product to the corresponding position of the unloading mechanism; and the unloading mechanism removes the product from the carrier mechanism.

[0015] Beneficial effects of the invention: 1. The entire equipment has a simple structure. By rotating the tilting and conveying feeding mechanism to the coverage area of ​​the carrier mechanism's clearance groove, the required area of ​​the tilting and conveying feeding mechanism and the carrier mechanism can be reduced, thus reducing the overall size of the equipment.

[0016] 2. The flipping and conveying feeding mechanism can rotate the flipping frame 180° to allow the No. 2 suction cup to extend from the frame to pick up the material and rotate to the upper end of the frame to reach the material release position, which facilitates quick material picking and releasing.

[0017] 3. The pressure-holding mechanism can apply pressure to both labels separately, improving the tightness of the fit between the labels and the product.

[0018] 4. The label adsorption mechanism can use springs to reduce the impact on the label when adsorbing it, thus achieving buffering. Attached Figure Description

[0019] Figure 1 A perspective view of a sheet labeling device provided in an embodiment of this application.

[0020] Figure 2 This is a top view of a sheet labeling device provided in an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the flipping, conveying, and loading mechanism and the carrier mechanism of the sheet labeling device provided in the embodiments of this application.

[0022] Figure 4 This is a schematic diagram of the first label peeling mechanism of the sheet labeling device provided in the embodiments of this application.

[0023] Figure 5 This is a schematic diagram of the label adsorption mechanism of the sheet labeling device provided in the embodiments of this application.

[0024] Figure 6 This is a schematic diagram of the first adsorption component of the plate labeling device provided in the embodiments of this application.

[0025] Figure 7 This is a schematic diagram of the transfer component of the sheet labeling device provided in an embodiment of this application.

[0026] Figure 8 This is a schematic diagram of the pressure holding mechanism and carrier mechanism of the sheet labeling device provided in the embodiments of this application.

[0027] The diagram is labeled as follows: 1. Frame; 2. Carrier mechanism; 3. Tilting and conveying loading mechanism; 4. Unloading mechanism; 5. Label feeding mechanism; 6. Label adsorption mechanism; 7. Pressure holding mechanism; 21. Support frame 1; 22. Linear guide rail 1; 23. Linear module 1; 24. U-shaped carrier plate; 240. Alignment groove; 31. Seat 2; 32. Linear guide rail 2; 33. Lifting frame; 34. Cylinder 2; 35. Rotating rod; 36. Motor; 37. Tilting frame; 38. Suction cup 2; 71. First pressure holding assembly; 72. Second pressure holding assembly; 711. Seat 3; 712. Cylinder 3; 713. Pressure plate 3; 51. First label peeling mechanism; 52. Second label peeling mechanism. Labeling mechanism; 511, No. 4 seat; 512, unwinding assembly; 513, rewinding assembly; 514, feeder assembly; 515, label receiving platform; 61, robotic arm; 62, mounting frame; 63, CCD camera mounting; 64, No. 1 adsorption assembly; 65, No. 2 adsorption assembly; 641, No. 5 cylinder; 642, top plate; 643, guide pin; 644, bottom plate; 645, spring; 646, suction nozzle; 41, good product conveyor line; 42, waste material discharge port; 43, transfer assembly; 431, No. 6 seat; 432, No. 6 linear module A; 433, No. 6 linear module B; 434, No. 6 plate; 435, No. 6 cylinder; 436, No. 6 frame; 437, No. 6 suction cup. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] like Figure 1 and Figure 2 As shown, the first embodiment provided in this application is a labeling device for sheet metal, the structure of which includes a frame 1, a carrier mechanism 2 disposed on the frame 1, a flipping and conveying loading mechanism 3 and a unloading mechanism 4 disposed at both ends of the carrier mechanism 2, a label feeding mechanism 5 disposed on one side of the carrier mechanism 2, a label adsorption mechanism 6 disposed on the frame 1, and a pressure holding mechanism 7.

[0030] In actual use, the board labeling device of this application is connected to the product feeding mechanism. At this time, the flipping and conveying feeding mechanism 3 flips to the side away from the carrier mechanism 2, adsorbs the product, and then flips 180°. At this time, the product is above the flipping and conveying feeding mechanism 3. Then the flipping and conveying feeding mechanism 3 places the product in the carrier mechanism 2. Subsequently, the carrier mechanism 2 transports the product to the label receiving position. Then the label adsorption mechanism 6 affixes the label in the label feeding mechanism 5 to the product. The pressure holding mechanism 7 holds the product and the label under pressure. Finally, the carrier mechanism 2 transports the labeled product to the corresponding position of the unloading mechanism 4. The unloading mechanism 4 removes the product from the carrier mechanism 2.

[0031] In the above design, the tilting and conveying feeding mechanism 3 can save equipment volume and reduce the equipment floor space.

[0032] Specifically: such as Figure 3 As shown, the carrier mechanism 2 includes a first support frame 21 mounted on the frame 1, a first linear guide rail 22 and a first linear module 23 mounted on the first support frame along the X-axis, and a U-shaped carrier plate 24 slidably connected to the first linear guide rail 22 and driven by the first linear module 23. The first linear guide rail 22 and the first linear module 23 are arranged along the Y-axis. The U-shaped carrier plate 24 is provided with a clearance groove 240 for avoiding the tilting and conveying loading mechanism 3. The first linear guide rail 22 and the first linear module 23 are located on both sides of the clearance groove 240.

[0033] In actual use, after receiving the product via the U-shaped carrier plate 24, the first linear module 23 drives the U-shaped carrier plate 24 to move, positioning it to a position that facilitates label reception, label pressure maintenance, and product unloading. When the flip-transfer loading mechanism 3 picks up the product and flips it 180°, it aligns with the clearance groove 240. After the U-shaped carrier plate 24 moves to the receiving position, the flip-transfer loading mechanism 3 places the product on the U-shaped carrier plate 24.

[0034] In the above design, the structural design and specific implementation of the carrier mechanism 2 facilitate the transportation of products and the avoidance of the overturning and conveying loading mechanism 3.

[0035] Specifically: such as Figure 3As shown, the flipping and conveying loading mechanism 3 includes a second seat 31 mounted on the frame 1, a second linear guide rail 32 mounted vertically on the second seat 31, a lifting frame 33 slidably mounted on the second linear guide rail 32, a second cylinder 34 mounted on the second seat 31 for driving the lifting frame 33 to rise and fall, a rotating rod 35 rotatably mounted on the lifting frame 33, a motor 36 mounted on the lifting frame 33 for driving the rotating rod 35 to rotate, a flipping frame 37 fixedly mounted on the rotating rod 35, and several second suction cups 38 mounted on the flipping frame 37. The flipping frame 37 can rotate to the clearance groove 240.

[0036] In actual use, when the product needs to be received from an external mechanism, the motor 36 drives the rotating rod 35 to rotate, causing the second suction cup 38 to face downwards. Then, the second cylinder 34 drives the entire lifting frame 33 to move the flipping frame 37 and the second suction cup 38 downwards, causing the second suction cup 38 to descend and adsorb the product. Subsequently, the second cylinder 34 drives the lifting frame 33 to move the flipping frame 37 upwards, causing the second suction cup 38 to lift the product from the external mechanism. Then, the motor 36 drives the rotating rod 35 to rotate 180°, at which point the product is located above the U-shaped carrier plate 24. Then, the second cylinder 34 drives the lifting frame 33 to move downwards along the second linear guide rail 32, causing the flipping frame 37 to descend from above the upper end of the U-shaped carrier plate 24 along the clearance groove 240 to the lower end of the U-shaped carrier plate 24. At this time, the product does not pass through the clearance groove 240 simultaneously but is supported by the end faces of the U-shaped carrier plate 24 on both sides of the clearance groove 240. Then, suction cup 38 releases a vacuum, allowing the product to move with the U-shaped carrier plate 24 to the label receiving position.

[0037] In the above design, the structural design and specific implementation of the flipping and conveying mechanism 3 facilitate the adsorption and flipping of products. When it is not necessary to connect with an external mechanism to receive products, the flipping mechanism can drive the rotating rod 35 to rotate through the motor 36 so that the flipping frame 37 is located between the first linear guide rail 22 and the first linear module 23, effectively reducing the floor space occupied by the flipping and conveying mechanism 3.

[0038] Specifically: the motor 36 drives the rotating rod 35, the flipping frame 37 and the second suction cup 38 to rotate 180°, the second cylinder 34 drives the lifting frame 33, the rotating rod 35, the motor 36, the flipping frame 37 and the second suction cup 38 to rise and fall, the second suction cup 38 adsorbs the product and then flips 180° with the flipping frame 37 to be located in the clearance groove 240, the flipping frame 37 descends so that the product is supported by the U-shaped carrier plate 24.

[0039] Specifically: such as Figure 8As shown, the pressure holding mechanism 7 includes a first pressure holding component 71 and a second pressure holding component 72 that are respectively arranged on both sides of the carrier mechanism 2 and have the same structure. The first pressure holding component 71 includes a No. 3 seat 711 arranged on the frame 1, a No. 3 cylinder 712 arranged vertically on the No. 3 seat 711, and a No. 3 pressure plate 713 arranged at the output end of the No. 3 cylinder 712.

[0040] In actual use, after the product is affixed with the latter two types of labels, the first pressure-holding component 71 and the second pressure-holding component 72 respectively hold pressure on the two types of labels. Taking the first pressure-holding component 71 as an example: the third pressure plate 713 is driven to move downward by the third cylinder 712, so that the third pressure plate 713 applies pressure to the upper surface of the label.

[0041] In the above design, the structural design and specific implementation of the pressure holding mechanism 7 facilitate the pressure holding of the label on the end face of the product.

[0042] Specifically: such as Figure 1 and Figure 4 As shown, the label feeding mechanism 5 includes a first label peeling mechanism 51 and a second label peeling mechanism 52 that are identical in structure and are mounted on the frame 1. The first label peeling mechanism 51 includes a fourth seat 511 mounted on the frame 1, an unwinding assembly 512 mounted on the fourth seat 511, a winding assembly 513 mounted on the fourth seat 511, a feeder assembly 514 mounted on the fourth seat 511, and a label receiving platform 515 mounted on the fourth seat 511.

[0043] In actual use, the first label peeling mechanism 51 and the second label peeling mechanism 52 work on the same principle. The first label peeling mechanism 51 unwinds the roll material and rewinds the bottom paper through the rewinding component 513. During the unwinding and rewinding process, the label on the bottom paper is peeled off to the label receiving platform 515 through the feeder component 514.

[0044] In the above design, the structural design and specific implementation of the label feeding mechanism 5 facilitate the automatic peeling of labels.

[0045] Specifically: such as Figure 5 As shown, the label adsorption mechanism 6 includes a robotic arm 61 mounted on the frame 1, a mounting frame 62 mounted on the robotic arm 61, an upper CCD camera 63 mounted on the mounting frame 62, and a first adsorption component 64 and a second adsorption component 65 mounted on the mounting frame 62. The first adsorption component 64 and the second adsorption component 65 adsorb the labels on the first label peeling mechanism 51 and the second label peeling mechanism 52, respectively. A lower CCD camera is also mounted on the frame 1.

[0046] In actual use, after the first label peeling mechanism 51 and the second label peeling mechanism 52 peel off the label, the robotic arm 61 drives the mounting frame 62 to move the first adsorption component 64 and the second adsorption component 65. The upper CCD camera 63 takes a picture of the upper surface of the label for positioning. The first adsorption component 64 adsorbs the label peeled off by the first label peeling mechanism 51, and the second adsorption component 65 adsorbs the label peeled off by the second label peeling mechanism 52. Then, the robotic arm 61 drives the lower CCD camera to detect the label adsorbed by the first adsorption component 64 and the second adsorption component 65.

[0047] In the above design, the structural design and specific implementation of the label adsorption mechanism 6 facilitate the detection of the label's position before and after adsorption.

[0048] Specifically: such as Figure 6 As shown, the first adsorption component 64 includes a fifth cylinder 641 vertically mounted on the mounting frame 62, a top plate 642 mounted on the output end of the fifth cylinder 641, a plurality of guide pins 643 slidably mounted on the top plate 642, a base plate 644 connecting the lower ends of the plurality of guide pins 643, springs 645 sleeved on the guide pins 643, and a suction nozzle 646 mounted on the lower end of the base plate 644. The upper end of the guide pins 643 is provided with a limiting head, and the two ends of the springs 645 abut against the base plate 644 and the top plate 642 respectively.

[0049] In actual use, when the label needs to be adsorbed, cylinder 641 drives the top plate 642 to move downwards. After the suction nozzle 646 contacts the upper surface of the label, because cylinder 641 has not completed its stroke, the bottom plate 644 and guide pin 643 move upwards relative to the top plate 642, compressing the spring 645. After the label is adsorbed, cylinder 641 and spring 645 reset.

[0050] In the above design, the structural design and specific implementation of the first adsorption component 64 facilitate the adsorption of the label, while the spring 645 can be used to reduce the impact on the adsorption of the label.

[0051] Specifically: such as Figure 1 and Figure 7 As shown, the unloading mechanism 4 includes a good product conveyor line 41, a waste material discharge port 42, and a transfer assembly 43 mounted on the frame 1. The transfer assembly 43 includes a No. 6 seat 431 mounted on the frame 1, a No. 6 linear module A432 mounted on the No. 6 seat 431 along the Y-axis, a No. 6 linear module B433 mounted at the output end of the No. 6 linear module A432 along the X-axis, a No. 6 plate 434 mounted at the output end of the No. 6 linear module B433, a No. 6 cylinder 435 mounted vertically on the No. 6 plate 434, a No. 6 frame 436 mounted at the output end of the No. 6 cylinder 435, and several No. 6 suction cups 437 mounted on the No. 6 frame 436.

[0052] In actual use, when it is necessary to unload products after labeling, the transfer component 43 transfers qualified products to the good product conveyor line 41, and sends unqualified products to the waste discharge port 42. The working principle of the transfer component 43 is as follows: the sixth linear module A432 drives the sixth linear module B433 to move along the Y-axis, the sixth linear module B433 drives the sixth plate 434 to move along the X-axis, the sixth plate 434 drives the sixth cylinder 435 to move synchronously, driving the sixth frame 436 and the sixth suction cup 437 to move synchronously. Then the sixth cylinder 435 drives the sixth plate 434 to move down, so that the sixth suction cup 437 picks up the product. Then the sixth cylinder 435 resets, and the sixth linear module A432 and the sixth linear module B433 work together to transport the product to the corresponding position above the good product conveyor line 41 or the waste discharge port 42 for unloading.

[0053] In the above design, the structural design and specific implementation of the feeding mechanism 4 facilitate the rapid feeding of products.

[0054] The second embodiment provided in this application is a method for labeling sheet materials. Using the aforementioned sheet material labeling device, the method includes the following steps: the flipping and conveying feeding mechanism 3 flips to the side away from the carrier mechanism 2 and connects with the external mechanism. The flipping and conveying feeding mechanism 3 absorbs the product from the external mechanism and then flips 180°. At this time, the product is located above the flipping and conveying feeding mechanism 3. Then, the flipping and conveying feeding mechanism 3 places the product in the carrier mechanism 2. Subsequently, the carrier mechanism 2 transports the product to the label receiving position. Then, the label adsorption mechanism 6 affixes the label from the label feeding mechanism 5 to the product. The pressure holding mechanism 7 holds the product and the label under pressure. Finally, the carrier mechanism 2 transports the labeled product to the corresponding position of the unloading mechanism 4. The unloading mechanism 4 removes the product from the carrier mechanism 2.

[0055] The above design allows for labeling of boards without taking up a large amount of space.

[0056] In further detail, it should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sheet material labeling device, comprising a frame (1), characterized in that: It also includes a carrier mechanism (2) set on the frame (1), a flipping and conveying loading mechanism (3) and a unloading mechanism (4) respectively set at both ends of the carrier mechanism (2), a label feeding mechanism (5) set on one side of the carrier mechanism (2), a label adsorption mechanism (6) set on the frame (1), and a pressure holding mechanism (7); The carrier mechanism (2) includes a first support frame (21) set on the frame (1), a first linear guide rail (22) and a first linear module (23) set on the first support frame (21) along the X-axis direction, and a U-shaped carrier plate (24) slidably connected to the first linear guide rail (22) and driven by the first linear module (23). The first linear guide rail (22) and the first linear module (23) are arranged along the Y-axis direction. The U-shaped carrier plate (24) is provided with a clearance groove (240) for avoiding the tilting and conveying loading mechanism (3). The first linear guide rail (22) and the first linear module (23) are located on both sides of the clearance groove (240). The flipping and conveying loading mechanism (3) includes a second seat (31) mounted on the frame (1), a second linear guide rail (32) mounted vertically on the second seat (31), a lifting frame (33) slidably mounted on the second linear guide rail (32), a second cylinder (34) mounted on the second seat (31) for driving the lifting frame (33) to lift, a rotating rod (35) rotatably mounted on the lifting frame (33), a motor (36) mounted on the lifting frame (33) for driving the rotating rod (35) to rotate, a flipping frame (37) fixedly mounted on the rotating rod (35), and several second suction cups (38) mounted on the flipping frame (37). The flipping frame (37) can rotate to the clearance groove (240).

2. The plate labeling device according to claim 1, characterized in that: The motor (36) drives the rotating rod (35), the flipping frame (37) and the second suction cup (38) to rotate 180°. The second cylinder (34) drives the lifting frame (33), the rotating rod (35), the motor (36), the flipping frame (37) and the second suction cup (38) to rise and fall. After the second suction cup (38) adsorbs the product, it flips 180° with the flipping frame (37) and is located in the clearance groove (240). The flipping frame (37) descends so that the product is supported by the U-shaped carrier plate (24).

3. The plate labeling device according to claim 1, characterized in that: The pressure holding mechanism (7) includes a first pressure holding component (71) and a second pressure holding component (72) that are respectively arranged on both sides of the carrier mechanism (2) and have the same structure. The first pressure holding component (71) includes a No. 3 seat (711) arranged on the frame (1), a No. 3 cylinder (712) arranged vertically on the No. 3 seat (711), and a No. 3 pressure plate (713) arranged at the output end of the No. 3 cylinder (712).

4. The plate labeling device according to claim 1, characterized in that: The label feeding mechanism (5) includes a first label peeling mechanism (51) and a second label peeling mechanism (52) that are identical in structure and are mounted on the frame (1). The first label peeling mechanism (51) includes a fourth seat (511) mounted on the frame (1), an unwinding assembly (512) mounted on the fourth seat (511), a winding assembly (513) mounted on the fourth seat (511), a feeder assembly (514) mounted on the fourth seat (511), and a label receiving platform (515) mounted on the fourth seat (511).

5. The plate labeling device according to claim 1, characterized in that: The label adsorption mechanism (6) includes a robotic arm (61) mounted on a frame (1), a mounting frame (62) mounted on the robotic arm (61), an upper CCD camera (63) mounted on the mounting frame (62), a first adsorption component (64) and a second adsorption component (65) mounted on the mounting frame (62). The first adsorption component (64) and the second adsorption component (65) adsorb the labels on the first label peeling mechanism (51) and the second label peeling mechanism (52) respectively. A lower CCD camera is also mounted on the frame (1).

6. The sheet labeling device according to claim 5, characterized in that: The first adsorption component (64) includes a fifth cylinder (641) vertically mounted on a mounting frame (62), a top plate (642) mounted on the output end of the fifth cylinder (641), a plurality of guide pins (643) slidably mounted on the top plate (642), a bottom plate (644) connecting the lower ends of the plurality of guide pins (643), a spring (645) sleeved on the guide pins (643), and a suction nozzle (646) mounted on the lower end of the bottom plate (644). The upper end of the guide pin (643) is provided with a limiting head, and the two ends of the spring (645) abut against the bottom plate (644) and the top plate (642) respectively.

7. The plate labeling device according to claim 1, characterized in that: The feeding mechanism (4) includes a good product conveyor line (41), a waste material discharge port (42), and a transfer assembly (43) set on the frame (1). The transfer assembly (43) includes a No. 6 seat (431) set on the frame (1), a No. 6 linear module A (432) set on the No. 6 seat (431) along the Y-axis, a No. 6 linear module B (433) set on the output end of the No. 6 linear module A (432) along the X-axis, a No. 6 plate (434) set on the output end of the No. 6 linear module B (433), a No. 6 cylinder (435) set vertically on the No. 6 plate (434), a No. 6 frame (436) set on the output end of the No. 6 cylinder (435), and a number of No. 6 suction cups (437) set on the No. 6 frame (436).

8. A method for labeling sheet materials, using the sheet material labeling device according to any one of claims 1 to 7, characterized in that: The process includes the following steps: the flipping and conveying loading mechanism (3) flips to the side away from the carrier mechanism (2) and docks with the external mechanism. The flipping and conveying loading mechanism (3) picks up the product from the external mechanism and then flips it 180°. At this time, the product is above the flipping and conveying loading mechanism (3). Then the flipping and conveying loading mechanism (3) places the product in the carrier mechanism (2). Subsequently, the carrier mechanism (2) transports the product to the label receiving position. Then the label picking mechanism (6) attaches the label in the label feeding mechanism (5) to the product. The pressure holding mechanism (7) holds the product and the label. Finally, the carrier mechanism (2) transports the label-attached product to the corresponding position of the unloading mechanism (4). The unloading mechanism (4) removes the product from the carrier mechanism (2).

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