Multi-angle plate machining equipment and machining method

Abstract

The invention discloses multi-angle plate machining equipment and a machining method. The multi-angle plate machining equipment comprises an industrial personal computer, a code scanning gun, a plate clamping mechanism and a conveying table for clamping plates through the plate clamping mechanism. The code scanning gun is used for scanning the two-dimensional code on the label and feeding back a plate processing graph and information to the industrial personal computer, and the industrial personal computer is used for programming the processing equipment; a projection unit is arranged on one side of the conveying table, the code scanning gun is coupled with the projection unit through the industrial personal computer, and the projection unit projects a processing graph received by the industrial personal computer to the surface of a plate in an equal proportion mode, so that an operator can visually see an area where a label can be pasted. According to the invention, through projection avoidance guiding, the self-adaptive labeling mechanism and the liquid traceability code transfer printing technology, one-time accurate labeling and permanent traceability of the label are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of plate processing equipment, and in particular to multi-angle plate processing equipment and a processing method. Background Art

[0002] With the rapid development of the whole-home customization industry, the demand for automated, large-scale production of prefabricated panels is becoming increasingly prominent. In this automated process, panels typically undergo multiple steps, including cutting, edge banding, drilling, and slotting. The current industry practice is to immediately attach identification labels (such as QR codes with simple block diagrams) to the panels after cutting to facilitate information tracking and management during the production process.

[0003] For example, Chinese patent CN207841616U discloses a six-sided machining center that has already completed cutting and hemming before the plate enters the machine for processing. At this time, the operator needs to tear off the label according to the processing position of the hole slot and re-apply it to the non-processing position; However, this operation has significant technical drawbacks: 1. Low efficiency and poor precision in secondary label application: Due to the high uncertainty of subsequent hole and slot machining positions (which dynamically change based on the design drawings of each plate), to prevent the drilling and milling tools from damaging the labels during machining, operators must manually review the machining drawings displayed on the computer screen before machining. Based on experience, they must locate a "safe zone" (i.e., the non-machined surface) on the plate, manually remove the original label, and reapply it. This process is not only cumbersome, time-consuming, and labor-intensive, but also difficult to guarantee the accuracy of manually determined labeling positions. Positioning deviations can easily cause labels to remain in the machining path and be damaged.

[0004] 2. Labels easily fall off, rendering traceability ineffective: Existing labels often use conventional adhesives, which are prone to falling off or becoming damaged during sheet material transfer, handling, and subsequent processes (such as edge banding and high-temperature operations). Once a label is lost, the sheet material loses its unique identification, disrupting the production traceability chain. During final assembly, workers spend a significant amount of time comparing drawings with actual dimensions and manually locating the installation locations for missing sheets, significantly slowing assembly efficiency and even leading to quality issues such as incorrect or missing components. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a multi-angle plate processing device and method, which achieves one-time precise labeling and permanent traceability through projection avoidance guidance, adaptive labeling mechanism and liquid traceability code transfer technology.

[0006] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a multi-angle plate processing equipment, including an industrial computer, a barcode scanning gun, a clamping mechanism and a conveying table for clamping the plate through the clamping mechanism; The barcode scanner is used to scan the QR code on the label to feed back the plate processing graphics and information to the industrial computer, and the processing equipment is programmed through the industrial computer; A projection unit is provided on one side of the conveyor platform. The barcode scanner is connected to the projection unit through an industrial computer. The projection unit projects the processing graphics received by the industrial computer onto the surface of the plate in a proportional form, so that the operator can intuitively see the label-coverable area.

[0007] In the above scheme, preferably, the clamping mechanism is provided with a movable component for placing labels, the movable component includes a first slide rail and a first slider cooperating therewith, a second slide rail is rotatably provided on the first slider, a second slide rail is provided on the second slide rail, and a positioning component for placing labels is provided on the second slider.

[0008] In the above solution, preferably, the positioning assembly includes a placement platform adapted to the shape of the label and a placement rack matched therewith, the placement rack is fixedly provided with a positioning rack on the second slider, and the placement rack is rotatably mounted on the positioning rack; The positioning frame is provided with an adsorption plate for adsorbing labels, and the adsorption plate is connected to the driving push rod.

[0009] In the above solution, preferably, the positioning frame is provided with a first driving motor connected to the placement frame.

[0010] In the above solution, preferably, the placement platform includes a liquid storage tank and a plurality of lifting rods arranged in the liquid storage tank for lifting; A sleeve is fixedly provided in the placement platform and is in sliding cooperation with the lifting rod. The sleeve is provided with an expansion fluid that expands by heating; The placement rack is provided with a laser unit coupled to an industrial computer. The laser unit can project the traceability code emitted by the industrial computer in a graphic form to the bottom of the placement table and heat the corresponding sleeve, so that a corresponding number of lifting rods are lifted above the liquid surface of the liquid storage tank and form a corresponding graphic.

[0011] In the above solution, preferably, the expansion fluid is mercury or mercury.

[0012] In the above solution, preferably, the lower end of the lifting rod is slidably arranged in the sleeve and contacts the expansion fluid, and the upper end slides upward after the sleeve is heated and expanded by the expansion fluid and contacts the bottom of the label placed on the placement table.

[0013] In the above solution, preferably, the clamping plate mechanism is provided with a second driving motor for driving the second slide rail to rotate.

[0014] In the above solution, preferably, the liquid reservoir stores a color developing solution.

[0015] In the above scheme, preferably, a method for processing a plate using a multi-angle plate processing device is as follows: S1: The sheet is moved to the conveying table through the clamping mechanism, and then the label is torn off and placed on the table with the front side facing up; S2: The operator uses a barcode scanner to scan the QR code on the label, and then feeds the QR code image and number information back to the industrial computer; S3: The industrial computer feeds the graphic information of the QR code to the projection unit, which then projects the plate drawing in proportion onto the plate surface, making it easier for the operator to intuitively see the label-applicable area. S4: At the same time as step S3, the industrial computer uses a laser unit to irradiate the number information of the QR code onto the sleeve at the lower end of the placement table. The irradiated sleeve is heated by the laser irradiation, causing the corresponding expansion fluid to expand and then lift the corresponding lifting rod upward; S5: The upper end surface of the corresponding lifting rod passes through the liquid storage tank and applies liquid to the lower surface of the label to form a number information composed of liquid; S6: The first driving motor drives the placement table to rotate so that the label is located under the adsorption plate. At the same time, the adsorption plate is moved to the laminating area by the moving component, and then the adsorption plate adsorbs the label. S7: The first drive motor drives the placement table to reset, and then drives the push rod to move the label downward to adhere to the adhered area on the plate surface. The liquid number information on the bottom of the label is synchronously combined with the plate surface. S8: When the label is lost or damaged, the liquid number information on the surface of the board will still remain on the surface of the board for easy traceability.

[0016] The beneficial effects of the present invention are as follows: the present invention significantly improves the efficiency and traceability of sheet metal processing by integrating a projection avoidance guidance system, a multi-degree-of-freedom labeling mechanism, and a liquid traceability code transfer technology: 1. Accurate labeling with zero error: The projection unit is used to project the processing drawings in proportion onto the plate surface, intuitively displaying the safe labeling area, replacing the manual positioning method of looking at the drawings, thereby greatly improving the accuracy of label avoidance and eliminating label processing damage caused by positioning deviation; 2. Permanent traceability and anti-shedding: A laser unit is used to trigger the thermal expansion of the expansion fluid, pushing the lifting rod to carry the color-developing liquid in the reservoir to form a coded pattern on the back of the label. After being transferred to the plate, it combines with the plate surface to form an invisible mark. Even if the label falls off, the code on the plate surface can still be read by using a color-developing instrument or solution to trace the source, solving the problem of production chain interruption. 3. Full process automation: The industrial computer coordinates the control of the barcode scanner, mobile components and positioning components to achieve fully automated operations from information entry, safety zone positioning, code generation to precise labeling, greatly improving production efficiency and reducing manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the locally enlarged structure at point A in the middle.

[0019] Figure 3 Schematic diagram of the initial position of the placement table relative to the adsorption plate of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the positioning component of the present invention.

[0021] Figure 5 This is a cross-sectional view of the positioning assembly of the present invention.

[0022] Figure 6 This is a transverse sectional view of the placement table of the present invention.

[0023] Figure 7 For the present invention Figure 5 Schematic diagram of the locally enlarged structure at point B in the middle.

[0024] Figure 8 This is a schematic diagram of the three-dimensional structure of the placement table of the present invention. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments: Figures 1-8 .

[0026] A multi-angle plate processing equipment, a multi-angle plate processing equipment, includes an industrial computer 1, a barcode scanner 2, a clamping mechanism 3 and a conveying platform 4 that clamps the plate through the clamping mechanism 3. The plate with a label is clamped to the conveying platform 4 through the clamping mechanism 3. Then the operator scans the QR code on the label through the barcode scanner 2, and feeds back the plate processing graphics and information on the QR code to the industrial computer 1. Then, the industrial computer 1 programs the plate processing equipment based on the feedback information.

[0027] A projection unit 5 is provided on one side of the conveying platform 4. Figure 1 As shown, the projection unit 5 is arranged on a side away from the clamping mechanism 3. The projection unit 5 can adopt a visual projection device such as a laser projector, and the device is connected to the industrial computer 1. The industrial computer 1 projects the processing graphics of the required processing plate onto the surface of the plate in a proportional form through the two-dimensional code graphic information fed back by the barcode scanning gun 2, even if the processing graphics are projected onto the surface of the plate in a 1:1 form or a form close to 1:1, and are consistent with the processing program compiled by the industrial computer 1, so that the operator can intuitively see the parts of the plate that do not need to be processed, that is, the area where the label can be pasted.

[0028] The clamping mechanism 3 is provided with a moving component 6 for placing labels, and the moving component 6 includes a first slide rail 601 and a first slider 602 cooperating therewith. The first slider 602 is slidably set on the first guide rail 601, and the first guide rail 601 is fixed on the clamping mechanism 3. The axis of the first guide rail 601 is spatially parallel to the direction of plate conveying.

[0029] A second guide rail 603 is rotatably provided on the first slider 602. Specifically, one end of the second guide rail 603 is connected to the second drive motor 13 via a rotating shaft. The second drive motor 13 can drive the second guide rail 603 to rotate relative to the first guide rail 601 to achieve angle adjustment between the guide rails. A second slider 604 is provided on the second slide rail 603, and the second slider 604 is slidably set on the second slide rail 603. A positioning component 7 for placing a label is provided on the second slider 604. After the label is placed on the positioning component 7, the first slider 602 and the second slider 604 are displaced relative to the first guide rail 601 and the second guide rail 603, so that the positioning component 7 can be moved and positioned in any XY axis direction on the plate plane.

[0030] The positioning component 7 includes a placement table 701 that is adapted to the shape of the label and a placement rack 702 that cooperates with it. The lower end of the placement table 701 is fixedly connected to the plane of the placement rack 702 through a supporting foot. The upper end surface of the placement table 701 is recessed inward by 0.5-1mm to form a placement area for accommodating the label. After the operator tears off the QR code label on the circulating plate, it is placed in the placement area with the QR code side facing up, and then the QR code scanner 2 is used to scan the QR code in the placement area to read the data.

[0031] A positioning frame 703 is provided on the second slider 604, and the placement frame 702 is rotatably set on the positioning frame 703. Specifically, a first driving motor 706 is fixedly provided on the positioning frame 703, and the driving shaft end of the first driving motor 706 is fixedly connected to the end of the placement frame 702 away from the placement table 701. The placement frame 702 is driven to rotate by the first driving motor 706, thereby realizing the rotation of the placement table 701 relative to the positioning frame 703.

[0032] like Figure 3As shown, initially, the placement table 701 is in this position, and the positioning frame 703 is provided with an adsorption plate 704 for adsorbing labels. The adsorption plate 704 is connected to a negative pressure air source, and a plurality of adsorption holes are provided on the adsorption plate 704, so that the lower end surface of the adsorption plate 704 has a certain adsorption force, and the adsorption plate 704 is connected to a driving push rod 705, and the driving push rod 705 is fixed on the positioning frame 703, and its push rod end is downwardly fixedly connected to the adsorption plate 704, thereby realizing the vertical sliding of the adsorption plate 704 relative to the surface of the plate, placing the label on Figure 3 After being placed in the placement area on the placement table 701, it is rotated to the position by the first drive motor 706. Figure 4 In the state shown, the adsorption plate 704 can then adsorb the upper surface of the label through negative pressure, so that the label and the adsorption plate 704 become one.

[0033] The placement table 701 includes a liquid reservoir 8 and a plurality of lifting rods 9 that are lifted and lowered in the liquid reservoir 8. The liquid reservoir 8 stores a color developing liquid. The color developing liquid is transparent after drying and can develop color when it comes into contact with water. The liquid level in the liquid reservoir 8 is higher than the upper end surface of the lifting rod 9 in the initial state and lower than the end surface of the placement area on the placement table 701. That is, when the label is placed in the placement area, its lower end surface will not contact the liquid in the liquid reservoir 8. Specifically, the placement table 701 faces the placement rack 7 02 is fixed with a plurality of sleeves 10 at the bottom, the lower end of the sleeve 10 is closed, and the upper end is fixed to the placement frame 702. The lower end of the lifting rod 9 is slidably set on the upper end of the sleeve 10, and the sleeve 10 is filled with an expansion liquid 11. In addition, a sliding seal such as a sealing gasket or a sealing ring is provided at the joint between the lifting rod 9 and the upper end hole of the sleeve 10, so that the expansion liquid 11 will not overflow when the lifting rod 9 slides or the expansion liquid 11 expands. The above-mentioned sleeve 10 and lifting rod 9 can form a single component, such as Figure 6-Figure 8 As shown, the components form a rectangular array in a planar state, and the spacing between adjacent lifting rods 9 is preferably 0.3-1.5 mm.

[0034] The sleeve 10 is made of a glass or metal tube, and the expansion liquid 11 is made of mercury or mercury. When the bottom of the sleeve 10 is heated, the expansion liquid 11 is heated and expands, thereby lifting the lifting rods 9. When multiple lifting rods 9 are lifted upward at the same time, the protruding lifting rods can form a figure, number or serial number.

[0035] The placement rack 702 is provided with a laser unit 12 coupled to the industrial computer 1. The laser unit 12 can adopt a galvanometer scanning laser or an array laser, and can be selected according to the shape of the traceability code to be displayed. The laser unit 12 can project the traceability code emitted by the industrial computer 1 in a graphic form to the bottom of the placement table 701 and heat the corresponding sleeve 10. The laser unit 12 is a laser emitter. The laser pattern it emits has a certain amount of heat, and when the pattern covers the sleeve 10, the bottom of the covered sleeve 10 is heated, so that the corresponding number of lifting rods 9 of the sleeve 10 is lifted to above the liquid level of the liquid reservoir 8 and forms a corresponding pattern. The lower end of the lifting rod 9 is slidably arranged in the sleeve 10 and contacts the expansion liquid 11. After the sleeve 10 is heated and expanded by the expansion liquid 11, the upper end slides upward and contacts the bottom of the label placed on the placement table 701, so that the end of the lifting rod 9 stained with the color developing liquid contacts the bottom surface of the label, and then the placement table 701 is rotated to Figure 3 In the state shown, the driving push rod 705 is started to press the label into the coverable area on the plate. At this time, the color developing liquid on the bottom of the label combines with the plate and forms an invisible traceability code on the plate. When the label falls off, the traceability code can be displayed by wiping it with water, which is convenient for traceability.

[0036] In order to prevent the liquid in the liquid reservoir 8 from shaking or splashing on the label when the placement table 701 moves, a suction cylinder 101 that penetrates the inner cavity of the liquid reservoir 8 is provided on the side of the placement table 701 that rotates close to the placement rack 702. A temperature-controlled push rod 102 is provided in the suction cylinder 101, and a piston 103 that cooperates with the suction cylinder 101 is provided at the push rod end of the temperature-controlled push rod 102. The temperature-controlled push rod 102 controls the movement of the piston 103 by the temperature, thereby enabling the piston 103 to suck and inject the liquid in the liquid reservoir 8.

[0037] The temperature control push rod 102 is connected to the temperature conducting rod 104, and a shielding plate 105 is rotatably provided on the positioning frame 703. The shielding plate 105 is provided with a heat conducting strip 106 that contacts the temperature conducting rod 104 after rotation. Figure 6 As shown, when the placement table 701 rotates clockwise, the baffle 105 cooperates with the laser head of the laser unit 12 to block it. At this time, the heat of the laser head is transferred to the thermal conductive strip 106. At the same time, the thermal conductive rod 104 contacts the upper end surface of the thermal conductive strip 106 after the placement table 701 rotates, so that the thermal conductive strip 106 transfers the temperature to the thermal conductive rod 104, and then triggers the temperature control push rod 102 to move.

[0038] Initially, if Figure 3In the state shown, after the label is placed on the placement table 701 in this state, the laser unit 12 is started, and the laser unit 12 irradiates the shielding plate 105 to heat the heat-conducting strip 106. At this time, because the heat-conducting rod 104 and the heat-conducting strip 106 are in contact, the temperature-controlled push rod 102 is actuated, and the color-developing liquid in the suction cylinder 101 is gradually pushed into the liquid storage tank 8 through the piston 103, so that the color-developing liquid infiltrates the upper end surface of the lifting rod 9. Preferably, the upper end surface of the lifting rod 9 can be provided with an arc-shaped recess to facilitate the storage of the color-developing liquid, and a flexible cotton of a water-absorbing material can also be used instead; at the same time, the first drive motor 706 drives the placement rack 702 along Figure 3 Turn counterclockwise as shown, gradually turning to Figure 4 In the state shown, the temperature conducting rod 104 is separated from the heat conducting strip 106, and the laser unit 12 directly irradiates the sleeve 10 at the bottom of the placement table 701. The pattern formed by the laser unit 12 gradually heats the bottom of the sleeve 10, causing the lifting rod 9 to gradually rise. After the corresponding lifting rod 9 rises, the color developing solution at the end contacts the bottom of the label, and the upper surface of the label contacts the adsorption plate 704, which adsorbs the label. Subsequently, the laser unit 12 is powered off, and the liquid in the liquid reservoir 8 is separated from the heat conducting strip 106 and the temperature conducting rod 104, and the temperature control push rod 102 is reset, thereby sucking the liquid in the pool back into the suction cylinder 101 for storage. When the adsorption plate 704 has adsorbed the label, the first drive motor 706 drives the placement table 701 to rotate to Figure 3 The initial position is shown, and then the driving push rod 705 drives the adsorption plate 704 to slide downward, and the label is attached to the attachable area on the plate to complete the secondary attachment.

[0039] A method for processing a plate using a multi-angle plate processing device, the method is as follows: S1: The plate is moved to the conveying table 4 through the clamping mechanism 3, and then the label is torn off and placed on the placement table 701 with the front side facing up; S2: The operator holds the barcode scanner 2 to scan the QR code on the label, and then feeds the QR code image and number information back to the industrial computer 1; S3: The industrial computer 1 feeds back the graphic information of the QR code to the projection unit 5, so that the projection unit 5 projects the plate drawing in proportion to the plate surface, so that the operator can intuitively see the label-applicable area; S4: Simultaneously with step S3, the industrial computer 1 irradiates the serial number information of the QR code onto the sleeve 10 at the lower end of the placement table 701 through the laser unit 12. The irradiated sleeve 10 is heated by the laser irradiation, causing the corresponding expansion fluid 11 to expand and lift the corresponding lifting rod 9 upward. S5: The upper end surface of the corresponding lifting rod 9 passes through the liquid reservoir 8 and applies liquid to the lower surface of the label to form a number information composed of liquid; S6: The first driving motor 706 drives the placement table 701 to rotate so that the label is located under the adsorption plate 704. At the same time, the adsorption plate 704 is moved to the laminating area by the moving component 6, and then the adsorption plate 704 adsorbs the label; S7: The first drive motor 706 drives the placement table 701 to reset, and then drives the push rod 705 to move the label downward to adhere to the adhered area on the plate surface. The liquid number information on the bottom of the label is synchronously combined with the plate surface. S8: When the label is lost or damaged, the liquid number information on the surface of the board will still remain on the surface of the board for easy traceability.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-angle plate processing equipment, characterized by: It comprises an industrial control computer (1), a barcode scanning gun (2), a clamping mechanism (3), and a conveying platform (4) for clamping a plate through the clamping mechanism (3); The barcode scanner (2) is used to scan the QR code on the label to feed back the plate processing graphics and information to the industrial control computer (1), and the processing equipment is programmed through the industrial control computer (1); A projection unit (5) is provided on one side of the conveying platform (4), and the barcode scanning gun (2) is coupled to the projection unit (5) via the industrial computer (1). The projection unit (5) projects the processing graphics received by the industrial computer (1) onto the surface of the plate in a proportional form, so that the operator can intuitively see the label-coverable area.

2. The multi-angle plate processing equipment according to claim 1, characterized in that: The clamping mechanism (3) is provided with a moving assembly (6) for placing labels, the moving assembly (6) comprising a first slide rail (601) and a first slider (602) cooperating therewith, a second slide rail (603) being rotatably provided on the first slider (602), a second slider (604) being provided on the second slide rail (603), and a positioning assembly (7) for placing labels being provided on the second slider (604).

3. The multi-angle plate processing equipment according to claim 2, characterized in that: The positioning assembly (7) includes a placement platform (701) adapted to the shape of the label and a placement frame (702) matched therewith, wherein a positioning frame (703) is fixedly provided on the placement frame (702) and the second slider (604), and the placement frame (702) is rotatably mounted on the positioning frame (703); The positioning frame (703) is provided with an adsorption plate (704) for adsorbing labels, and the adsorption plate (704) is connected to the driving push rod (705).

4. The multi-angle plate processing equipment according to claim 3, characterized in that: The positioning frame (703) is provided with a first driving motor (706) connected to the placement frame (702).

5. The multi-angle plate processing equipment according to claim 3, characterized in that: The placement platform (701) includes a liquid storage tank (8) and a plurality of lifting rods (9) arranged in the liquid storage tank (8) for lifting; A sleeve (10) is fixedly provided in the placement platform (701) and is in sliding engagement with the lifting rod (9). An expansion fluid (11) that expands upon heating is provided in the sleeve (10); The placement rack (702) is provided with a laser unit (12) coupled to the industrial computer (1). The laser unit (12) can project the traceability code emitted by the industrial computer (1) to the bottom of the placement table (701) in a graphic form and heat the corresponding sleeve (10), so that a corresponding number of lifting rods (9) are lifted to above the liquid surface of the liquid storage tank (8) and form a corresponding graphic.

6. The multi-angle plate processing equipment according to claim 5, characterized in that: The expansion fluid (11) is mercury or mercury.

7. The multi-angle plate processing equipment according to claim 5, characterized in that: The lower end of the lifting rod (9) is slidably disposed in the sleeve (10) and contacts the expansion liquid (11), and the upper end, after the sleeve (10) is heated and expanded by the expansion liquid (11), slides upward and contacts the bottom of the label placed on the placement table (701).

8. The multi-angle plate processing equipment according to claim 2, characterized in that: The clamping plate mechanism (3) is provided with a second driving motor (13) for driving the second slide rail (603) to rotate.

9. The multi-angle plate processing equipment according to claim 5, characterized in that: The liquid storage tank (8) stores a color developing solution.

10. A method for processing a plate using the multi-angle plate processing device according to claim 7, characterized in that: The method is as follows: S1: The plate is moved to the conveying table (4) through the clamping mechanism (3), and then the label is torn off and placed on the placement table (701) with the front side facing upwards; S2: The operator holds the barcode scanner (2) to scan the QR code on the label, and then feeds the graphic and number information of the QR code back to the industrial computer (1); S3: The industrial control computer (1) feeds back the graphic information of the QR code to the projection unit (5), so that the projection unit (5) projects the plate drawing in proportion to the plate surface, thereby facilitating the operator to intuitively see the label-coverable area; S4: At the same time as step S3, the industrial computer (1) irradiates the number information of the QR code onto the sleeve (10) at the lower end of the placement table (701) through the laser unit (12). The irradiated sleeve (10) is heated by the laser irradiation, causing the corresponding expansion fluid (11) to expand and lift the corresponding lifting rod (9) upward; S5: The upper end surface of the corresponding lifting rod (9) passes through the liquid storage tank (8) and applies the liquid to the lower surface of the label to form the number information composed of the liquid; S6: The first driving motor (706) drives the placement table (701) to rotate so that the label is located below the adsorption plate (704). At the same time, the adsorption plate (704) is moved to the adhesive area by the moving component (6), and then the adsorption plate (704) adsorbs the label; S7: The first driving motor (706) drives the placement table (701) to reset, and then drives the push rod (705) to move the label downward to adhere to the adhered area on the plate surface, and the liquid number information on the bottom surface of the label is synchronously combined with the plate surface; S8: When the label is lost or damaged, the liquid number information on the surface of the board will still remain on the surface of the board for easy traceability.

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