Quality inspection and processing equipment for fitting facial mask raw materials and protective films and its operation method

Abstract

The present invention relates to a quality inspection and processing device for the fitting of mask raw materials and a protective film, and an operation method thereof. Among them, the processing device includes a processing table, a mask raw material conveying mechanism arranged on one side of the processing table, a protective film conveying mechanism arranged above the processing table, a fitting guiding roller arranged above the processing table, and a cutting mechanism installed on one side of the fitting guiding roller; a protective film fitting quality inspection mechanism is arranged on one side of the cutting mechanism. The protective film fitting quality inspection mechanism includes an inspection table arranged on one side of the processing table. A transparent plate is arranged on the top of the inspection table. An irradiation lamp is arranged inside the inspection table. A scanning imager is arranged above the inspection table. The transparent plate is located between the irradiation lamp and the scanning imager; a blanking belt is arranged on one side of the inspection table. A defective product removing manipulator is arranged at the end of the blanking belt. Both the scanning imager and the defective product removing manipulator are connected to a control system; this device realizes the precise inspection of the quality of mask units, and at the same time improves the efficiency of mask unit inspection and defective product removal.

Description

Technical Field

[0001] The present invention relates to the field of skin care product processing, and in particular to a quality inspection and processing device for the fitting of mask raw materials and a protective film and an operation method thereof. Background Art

[0002] The processing procedure of the mask unit mainly includes the following steps: 1. The mask raw material (sterilized fabric) and the protective film are fitted together by a professional machine; 2. The mask raw material with the protective film is cut into square mask units by a cutting device (the protective film plays a supporting role for the fabric of the mask unit); 3. The mask unit is punched and edge-cut by a device to form a shape corresponding to the human face; 4. The formed mask unit is packaged in an aluminum bag, and at the same time, essence liquid is injected into the aluminum bag to ensure that the essence liquid can completely soak the mask unit.

[0003] In the actual processing of the mask unit, the main quality assessment criteria are as follows: 1. The nutrient components of the essence liquid need to meet the standards and be non-irritating to the human skin; 2. Whether there are bulges and indentations between the fabric of the mask unit and the protective film; 3. The thickness and uniformity of the mask raw material (sterilized fabric), and whether there is a problem of uneven light transmission in the mask raw material (sterilized fabric).

[0004] Currently, during the processing of the mask unit, it is very difficult to detect the bulges and indentations between the fabric of the mask unit and the protective film. The staff only detects the quality of the mask unit by sampling, and it is very difficult to achieve the purpose of mask unit quality control;

[0005] Moreover, when there are problems with the thickness and uniformity of the mask raw material (sterilized fabric), the sampling staff can only judge based on experience, and it is very difficult to fundamentally solve the quality inspection during the mask unit processing. Summary of the Invention

[0006] In order to improve the problem of difficult quality inspection of the mask unit, the present application provides a quality inspection and processing device for the fitting of mask raw materials and a protective film and an operation method thereof.

[0007] In a first aspect, a quality inspection and processing device for the fitting of mask raw materials and a protective film provided by the present application adopts the following technical solutions:

[0008] The quality inspection and processing device for the fitting of mask raw materials and a protective film includes a processing table, a mask raw material conveying mechanism arranged on one side of the processing table, a protective film conveying mechanism arranged above the processing table, a fitting guide roller arranged on the processing table on the side far from the mask raw material conveying mechanism, and a cutting mechanism installed on one side of the fitting guide roller;

[0009] On one side of the cutting mechanism, there is a protective film laminating quality inspection mechanism. The protective film laminating quality inspection mechanism includes an inspection table arranged on one side of the processing table. On the top of the inspection table, there is a transparent plate. Inside the inspection table, there is an irradiation lamp. Above the inspection table, there is a scanning imager. The transparent plate is located between the irradiation lamp and the scanning imager;

[0010] On one side of the inspection table, there is a blanking belt. At the end of the blanking belt, there is a defective product removing manipulator. Both the scanning imager and the defective product removing manipulator are connected to the control system;

[0011] The cutting mechanism cuts the mask raw material after laminating the protective film. The scanning imager is used to scan and image the cut mask raw material. The pattern after scanning and imaging is transmitted to the control system.

[0012] By adopting the above technical solution, the mask raw material conveying mechanism is mainly used to convey the mask raw material (the disinfected and sterilized fabric) to the surface of the processing table. The protective film conveying mechanism is mainly used to convey the protective film to the surface of the processing table. The protective film is laminated on the surface of the mask raw material. After the protective film and the mask raw material are laminated, they are pressed by the laminating guide roller. After the laminated protective film and mask raw material pass through the cutting mechanism, they are cut into individual mask units. When the mask unit passes through the transparent plate on the top of the inspection table, the mask unit is irradiated by the irradiation lamp at the bottom. After being irradiated, the mask unit becomes transparent. At this time, the scanning imager scans the mask unit. The pattern of the scanned mask unit is transmitted to the control system. The control system conducts quality comparison and analysis on the received pattern. If the compared pattern does not meet the standard, the defective product removing manipulator removes the mask unit corresponding to the pattern.

[0013] Furthermore, the defective product removing manipulator includes a base, a first rotating motor arranged on the base, a bottom plate connected to the first rotating motor, a mounting seat arranged on the bottom plate, a first rocker arm hinged to the mounting seat, a second rocker arm hinged to the first rocker arm, a triangular plate installed at the free end of the second rocker arm, and a supporting plate hinged to the triangular plate;

[0014] On the triangular plate, there is a second rotating motor. The motor shaft of the second rotating motor is connected to the supporting plate. On one side of the mounting seat, there is a supporting plate. The end of the supporting plate is movably connected to the middle part of the second rocker arm. On the mounting seat, there is a push rod motor connected to the supporting plate.

[0015] By adopting the above technical solution, the qualified mask units smoothly fall from the end of the blanking belt, and the unqualified mask units are removed by the defective product removing manipulator. When the defective product removing manipulator removes the unqualified mask units, the first rotating motor drives the entire manipulator to rotate to one side of the end of the blanking belt. At this time, the push rod motor pushes out the support plate, and the support plate drives the second rocker arm to extend. The pallet at the end of the second rocker arm approaches the end of the blanking belt. When the unqualified mask unit falls from the end of the blanking belt, the pallet catches the unqualified mask unit. At this time, the first rotating motor drives the entire manipulator to rotate to the defective product storage area, and the second rotating motor drives the pallet to rotate quickly. The unqualified mask units on the pallet fall into the defective product storage area, and the defective product removal work can be completed.

[0016] Further, the control system includes:

[0017] The mask raw material imaging storage module is used to store the standard imaging patterns of mask raw materials of different specifications. The standard imaging patterns of mask raw materials of different specifications are mainly obtained by scanning with a scanning imager, and the obtained standard imaging patterns are imported into the mask raw material imaging storage module for storage. The standard imaging pattern is the imaging pattern after the surface of the mask raw material is covered with a protective film;

[0018] The imaging acquisition module acquires the patterns obtained by scanning and imaging the cut mask raw materials (mask units) by the scanning imager and stores and counts them;

[0019] The imaging comparison module compares the patterns obtained by the imaging acquisition module with the standard imaging patterns stored in the mask raw material imaging storage module;

[0020] The qualified pattern storage module stores the patterns of qualified mask units and records the number of qualified patterns at the same time;

[0021] The unqualified pattern storage module stores the patterns of unqualified mask units and records the number of unqualified patterns at the same time;

[0022] Among them, the unqualified pattern storage module includes a first pattern storage unit, a second pattern storage unit, and a third pattern storage unit;

[0023] The first pattern storage unit is mainly used to store and record the number of patterns with bulges or bumps in the patterns;

[0024] The second pattern storage unit is mainly used to store and record the number of patterns with indentation lines in the patterns;

[0025] The third pattern storage unit is mainly used to store and record the number of patterns with uneven shadow distribution;

[0026] An execution control module that controls a defective product removal manipulator to transfer defective mask raw materials after cutting.

[0027] By adopting the above technical solution, after the scanning imager scans and images the cut mask raw materials (mask units), the control system analyzes and compares the patterns of the received mask units, and at the same time classifies and stores and counts the qualified patterns and unqualified patterns, and rejects the mask units corresponding to the unqualified patterns. The patterns corresponding to the unqualified mask units mainly include three types:

[0028] The first type is a pattern with bulges or bumps. When this pattern appears, it indicates that the protective film of the mask unit corresponding to this pattern has bulges or bumps. The main reason is that the humidity on the surface of the mask raw material or the protective film is insufficient. The corresponding solution is to spray more essence on the surface of the mask raw material or the protective film;

[0029] The second type is a pattern with indentation lines. When this pattern appears, it indicates that there is a problem with the insufficient compaction of the mask raw material of the mask unit corresponding to this pattern. This is mainly caused by the uneven extrusion pressure exerted by the laminating guide roller on the mask raw material. The corresponding solution is to adjust the height at both ends of the laminating guide roller to ensure that the extrusion pressure exerted by the laminating guide roller on the mask raw material is uniform;

[0030] The third type is a pattern with uneven shadow distribution. When this pattern appears, it indicates that the material of the mask raw material of the mask unit corresponding to this pattern is unqualified. Under normal circumstances, the pattern of the mask raw material under light transmission is uniform. If the pattern is uneven, it indicates that the thickness of the local position of the mask raw material is inconsistent. If the number of patterns with uneven shadow distribution is large, it indicates that there are relatively large problems with the mask raw materials of this batch, and the mask raw materials need to be replaced.

[0031] Furthermore, a qualified product storage box is provided at the end of the blanking belt. A first defective product storage box, a second defective product storage box, and a third defective product storage box are respectively provided on one side of the qualified product storage box. A first position sensor is provided at the bottom of the first defective product storage box, a second position sensor is provided at the bottom of the second defective product storage box, and a third position sensor is provided at the bottom of the third defective product storage box;

[0032] The execution control module is provided with a first execution control unit signal-associated with the first position sensor, a second execution control unit signal-associated with the second position sensor, and a third execution control unit signal-associated with the third position sensor. A positioning sensor is provided at the bottom of the pallet, and the positioning sensor receives instructions sent by the first execution control unit, the second execution control unit, and the third execution control unit.

[0033] By adopting the above technical solution, when the control system cooperates with the defective product rejection manipulator for quality inspection, first, the mask raw material is cut into individual mask units by the cutting mechanism. When the mask unit passes through the transparent plate on the top of the inspection table, the mask unit is irradiated by the irradiation lamp at the bottom, and the irradiated mask unit becomes transparent. At this time, the scanning imager scans the mask unit, and the pattern of the scanned mask unit is transmitted to the imaging acquisition module of the control system. The imaging acquisition module stores the received pattern. At this time, the imaging comparison module compares and analyzes the quality of the pattern of the mask unit obtained by the imaging acquisition module with the standard imaging pattern stored in the mask raw material imaging storage module. The qualified pattern storage module stores the pattern of the qualified mask unit and records the number of qualified patterns at the same time; the unqualified pattern storage module stores the pattern of the unqualified mask unit and records the number of unqualified patterns at the same time.

[0034] During this process, the first pattern storage unit stores and records the number of patterns with bulges or bumps in the pattern; the second pattern storage unit stores and records the number of patterns with indentation lines in the pattern; the third pattern storage unit stores and records the number of patterns with uneven shadow distribution.

[0035] After the pattern comparison and analysis are completed, the control system classifies and rejects the mask units in real time. When the pattern of the mask unit is qualified, the defective product rejection manipulator does not work, and the feeding belt directly transports the qualified mask units to the qualified product storage box at the end. If the pattern after comparison does not meet the standard, the defective product rejection manipulator rejects the mask unit corresponding to the pattern and classifies different types of defective products. The defective product rejection operation mainly includes the following three operations:

[0036] 1. When the pattern of the mask unit has a bulge or bump, the first execution control unit of the execution control module sends a mutually matching secret key to the first position sensor and the positioning sensor. Each driving part of the defective product rejection manipulator receives the instruction sent by the first execution control unit, and the defective product rejection manipulator transports the mask unit corresponding to the unqualified pattern to the first defective product storage box for storage (the specific transfer operation process of the defective product rejection manipulator will not be elaborated); if the number of defective mask units with such a pattern reaches 1% of the total number of mask units, the staff needs to take measures. The corresponding solution is to spray more essence on the mask raw material or the protective film, which can avoid the problem of the protective film bulging or bumping inside the mask unit;

[0037] 2. When the pattern on the mask unit has indentation lines, the second execution control unit of the execution control module sends a mutually matching secret key to the second position sensor and the positioning sensor. Each driving part of the defective product rejection manipulator receives the instruction sent by the second execution control unit, and the defective product rejection manipulator transfers the mask unit corresponding to the unqualified pattern to the second defective product storage box for storage;

[0038] If the number of defective mask units with such a pattern reaches 1% of the total number of mask units, the staff needs to take measures. The corresponding solution is to adjust the heights at both ends of the fitting guide roller to ensure that the extrusion pressure exerted by the fitting guide roller on the mask raw material is uniform;

[0039] 3. When the shadow on the surface of the pattern of the mask unit is uneven, the third execution control unit of the execution control module sends a mutually matching secret key to the third position sensor and the positioning sensor. Each driving part of the defective product rejection manipulator receives the instruction sent by the third execution control unit, and the defective product rejection manipulator transfers the mask unit corresponding to the unqualified pattern to the third defective product storage box for storage;

[0040] If the number of defective mask units with such a pattern reaches 5% of the total number of mask units, the staff needs to take measures. The corresponding solution is to directly replace the qualified mask raw material, and at the same time conduct timely spot checks on the mask raw materials in the warehouse and reasonably replace the mask raw material suppliers.

[0041] Furthermore, the mask raw material conveying mechanism includes a unwind roller installed on the processing table, a guide roller arranged on one side of the processing table. There is a mask raw material drum on the unwind roller. After the mask raw material on the mask raw material drum is guided by the guide roller, it is laid flat on the surface of the processing table.

[0042] The protective film conveying mechanism includes a support frame fixed on the processing table, a unwind disc arranged on the support frame, a first transition roller, a second transition roller and a third transition roller arranged on one side of the unwind disc. A tension roller is arranged between the first transition roller and the second transition roller. The end of the tension roller is connected to a support rod, and the end of the support rod is connected to the support frame through a fastening bolt;

[0043] A protective film drum is sleeved on the unwind disc. The first transition roller, the second transition roller, the third transition roller and the outside of the tension roller are wound with a protective film. The protective film is laid flat above the mask raw material. After the protective film and the mask raw material are attached, they pass through the gap between the fitting guide roller and the processing table, and the circumferential surface of the fitting guide roller contacts the protective film.

[0044] By adopting the above technical solution, the mask raw material conveying mechanism is mainly used to convey mask raw materials (fabric after disinfection and sterilization) to the surface of the processing table, and the protective film conveying mechanism is mainly used to convey the protective film to the surface of the processing table. The protective film is attached to the surface of the mask raw material. After the protective film and the mask raw material are attached, they are pressed by the attaching guide roller. After the attached protective film and mask raw material pass through the cutting mechanism, they are cut into individual mask units;

[0045] Among them, a tension roller is provided between the first transition roller and the second transition roller. The end of the tension roller is connected to a support rod, and the end of the support rod is connected to the support frame through a fastening bolt. After loosening the fastening bolt, the support rod can rotate, and the position of the tension roller is adjustable. After the position of the tension roller is adjusted, the tension of the protective film unwinding can be changed to ensure that the protective film is laid flat on the surface of the mask raw material in a better tension state.

[0046] Furthermore, two guide frames are provided on the processing table, and guide grooves are provided on the guide frames. The attaching guide roller is located between the two guide frames. A fixing rod passes through the middle of the attaching guide roller. The attaching guide roller can rotate relative to the fixing rod. The end of the fixing rod is installed with a fastening bolt, and the end of the fastening bolt penetrates the guide groove, and the nut of the fastening bolt is closely attached to the guide frame.

[0047] By adopting the above technical solution, after loosening the fastening bolt, the fixing rod can slide freely in the guide groove. Correspondingly, the height of the attaching guide roller can be changed accordingly. After the height of the attaching guide roller is changed, the gap between the peripheral surface of the attaching guide roller and the processing table can be adjusted, so that the pressing degree of the attaching guide roller on the mask raw material can be changed, and the extrusion force applied by the attaching guide roller on the mask raw material can be ensured to be uniform.

[0048] Furthermore, a first spraying mechanism for spraying essence liquid on the surface of the mask raw material is provided on the support frame, and a second spraying mechanism for spraying essence liquid on the surface of the protective film is also provided on the support frame;

[0049] The first spraying mechanism includes a first installation space provided on the support frame, a first liquid supply hose provided in the first installation space, a first electromagnetic valve installed at the end of the first liquid supply hose, a plurality of first atomizing nozzles connected to the first electromagnetic valve, a first push rod motor connected to the first liquid supply hose provided on the inner wall of the first installation space, and the end of the first atomizing nozzle faces the surface of the mask raw material.

[0050] The second spraying mechanism includes a second installation space provided on the support frame, a second liquid supply hose provided in the second installation space, a second electromagnetic valve installed at the end of the second liquid supply hose, a plurality of second atomizing nozzles connected to the second electromagnetic valve, a second push rod motor connected to the second liquid supply hose provided on the inner wall of the second installation space, and the end of the second atomizing nozzle faces the surface of the protective film.

[0051] By adopting the above technical solutions, the first spraying mechanism mainly sprays essence liquid on the mask raw materials laid flat on the surface of the processing table to ensure that the mask raw materials are in a suitable moist state. Similarly, the second spraying mechanism mainly sprays essence liquid on the surface of the protective film to ensure that the protective film is in a suitable moist state. Among them, the first solenoid valve and the second solenoid valve can manually or automatically control the flow rate. When the humidity of the mask raw materials or the protective film is insufficient, the first solenoid valve and the second solenoid valve can control the spraying flow rate of the essence liquid. Similarly, the first push rod motor can change the distance between the first atomizing nozzle and the mask raw materials to ensure that the mask raw materials are fully in contact with the essence liquid, and the second push rod motor can change the distance between the second atomizing nozzle and the protective film to ensure that the protective film is fully in contact with the essence liquid.

[0052] In a second aspect, the present application provides an operation method for a quality inspection and processing device for fitting a mask raw material and a protective film, adopting the following technical solutions:

[0053] The operation method includes the following steps:

[0054] S1. The mask raw material conveying mechanism conveys the mask raw materials towards the surface of the processing table, and the protective film conveying mechanism conveys the protective film towards the surface of the processing table;

[0055] S2. The first atomizing nozzle sprays essence liquid on the surface of the mask raw materials, and the second atomizing nozzle sprays essence liquid on the surface of the protective film. After the essence liquid is sprayed, the protective film is laid flat above the mask raw materials. After the protective film and the mask raw materials are fitted, they pass through the gap between the fitting guide roller and the processing table, and the peripheral surface of the fitting guide roller contacts the protective film;

[0056] S3. The cutting mechanism cuts the mask raw materials covered with the protective film one by one to form mask units. The mask units are conveyed onto the transparent plate, and the scanning imager scans and images the cut mask units;

[0057] S4. The scanned mask units are conveyed by the blanking belt to the qualified product storage box. The control system controls the defective product rejection manipulator to reject the defective mask units and classify the rejected mask units.

[0058] The beneficial effects of the present invention are as follows: 1. The device scans the cut mask units through the scanning imager, compares and analyzes the patterns of the obtained mask units with the standard patterns pre-stored in the control system, classifies and stores and counts the qualified patterns and unqualified patterns at the same time, and automatically rejects the mask units corresponding to the unqualified patterns through mechanical equipment. Pattern analysis and detection are carried out on each mask unit, realizing the accurate detection of the quality of the mask units, and at the same time improving the efficiency of mask unit detection and defective product rejection;

[0059] 2. The control system of the device counts the unqualified mask units, and at the same time rejects and classifies different types of defective products. Through the number of defective products after classification and the defective product patterns, the method for solving the defective product quality can be traced intuitively, and the operation is convenient and efficient. Brief Description of the Drawings

[0060] Figure 1 It is a schematic structural diagram of the present invention;

[0061] Figure 2 It is a schematic diagram of the protective film laminating quality inspection mechanism of the present invention;

[0062] Figure 3 It is a schematic principle diagram of the control system of the present invention;

[0063] Figure 4 It is a schematic diagram of the partial structure of the defective product removing manipulator of the present invention;

[0064] Figure 5 It is a schematic diagram of the layout of the defective product removing manipulator and the defective product storage box of the present invention;

[0065] Figure 6 It is a schematic diagram of the partial structure of the processing table and its accessories of the present invention;

[0066] Figure 7 It is a schematic diagram of the structure of the accessories on one side of the processing table of the present invention.

[0067] Description of the Reference Numerals: 1. Processing table;

[0068] 2. Mask raw material conveying mechanism; 20. Mask raw material; 21. Unwinding roller; 22. Guide roller; 23. Mask raw material drum;

[0069] 3. Protective film conveying mechanism; 30. Protective film; 31. Support frame; 32. Unwinding disc; 33. First transition roller; 34. Second transition roller; 35. Third transition roller; 36. Tensioning roller; 37. Support rod; 38. Tightening bolt;

[0070] 4. Laminating guide roller; 41. Guide frame; 42. Guide groove; 43. Fixed rod;

[0071] 5. Cutting mechanism; 51. Cylinder; 52. Cutting knife; 53. Cutting table;

[0072] 6. Protective film laminating quality inspection mechanism; 61. Inspection table; 62. Transparent plate; 63. Irradiation lamp; 64. Scanning imager;

[0073] 7. Blanking belt; 70. Qualified product storage box; 71. First defective product storage box; 72. Second defective product storage box; 73. Third defective product storage box; 74. First position sensor; 75. Second position sensor; 76. Third position sensor;

[0074] 8. Defective product rejection manipulator; 81. Base; 82. First rotary motor; 83. Base plate; 84. Mounting seat; 85. First rocker arm; 86. Second rocker arm; 87. Triangular plate; 88. Support plate; 89. Second rotary motor; 810. Support plate; 811. Push rod motor; 812. Positioning sensor;

[0075] 9. Control system; 91. Mask raw material imaging storage module; 92. Imaging acquisition module; 93. Imaging comparison module; 94. Qualified pattern storage module; 95. Unqualified pattern storage module; 951. First pattern storage unit; 952. Second pattern storage unit; 953. Third pattern storage unit; 96. Execution control module; 961. First execution control unit; 962. Second execution control unit; 963. Third execution control unit; 10. Mask unit;

[0076] 11. First spraying mechanism; 110. First installation space; 111. First liquid supply hose; 112. First solenoid valve; 113. First atomizing nozzle; 114. First push rod motor;

[0077] 12. Second spraying mechanism; 120. Second installation space; 121. Second liquid supply hose; 122. Second solenoid valve; 123. Second atomizing nozzle; 124. Second push rod motor. Detailed implementation mode

[0078] As Figure 1 , Figure 2 , Figure 7 shown, the quality inspection and processing equipment for the bonding of mask raw materials and the protective film includes a processing table 1, a mask raw material conveying mechanism 2 arranged on one side of the processing table 1, a protective film conveying mechanism 3 arranged above the processing table 1, a bonding guiding roller 4 arranged on the processing table 1 on the side far from the mask raw material conveying mechanism, and a cutting mechanism 5 installed on one side of the bonding guiding roller 4;

[0079] On one side of the cutting mechanism 5, there is a protective film bonding quality inspection mechanism 6. Among them, the protective film bonding quality inspection mechanism 6 includes an inspection table 61 arranged on one side of the processing table 1, a transparent plate 62 is arranged on the top of the inspection table 61, an irradiation lamp 63 is arranged inside the inspection table 61, a scanning imager 64 is arranged above the inspection table 61, and the transparent plate 62 is located between the irradiation lamp 63 and the scanning imager 64;

[0080] On one side of the inspection table 61, there is a blanking belt 7. At the end of the blanking belt 7, there is a defective product rejection manipulator 8. Both the scanning imager 64 and the defective product rejection manipulator 8 are connected to the control system 9;

[0081] The cutting mechanism 5 includes a fixedly installed cylinder 51, a cutting knife 52 connected to the cylinder 51, and a cutting table 53 arranged below the cutting knife 52;

[0082] The cutting mechanism 5 cuts the mask raw material after laminating the protective film. The cutting table 53 can be equipped with a conveyor belt to facilitate the conveyance of the cut mask units 10. The cut mask units 10 are conveyed to the inspection table 61. The scanning imager 64 is used to perform a scanning image of the cut mask raw material, and the scanned pattern is transmitted to the control system 9.

[0083] In this embodiment, the mask raw material conveying mechanism 2 is mainly used to convey the mask raw material 20 (the disinfected and sterilized fabric) to the surface of the processing table 1. The protective film conveying mechanism 3 is mainly to convey the protective film 30 to the surface of the processing table 1. The protective film 30 is laminated on the surface of the mask raw material 20. After the protective film 30 and the mask raw material 20 are laminated, they are pressed tightly by the laminating guide roller 4. After the laminated protective film 30 and mask raw material 20 pass through the cutting mechanism 5, they are cut into individual mask units 10. When the mask unit 10 passes through the transparent plate 62 on the top of the inspection table 61, the mask unit 10 is irradiated by the irradiation lamp 63 at the bottom, and the irradiated mask unit 10 becomes transparent. At this time, the scanning imager 64 scans the mask unit 10, and the pattern of the scanned mask unit 10 is transmitted to the control system 9. The control system 9 performs quality comparison and analysis on the received pattern. If the compared pattern does not meet the standard, the defective product rejection manipulator 8 rejects the mask unit 10 corresponding to the pattern.

[0084] Further, as Figure 4 shown, the defective product rejection manipulator 8 includes a base 81, a first rotating motor 82 arranged on the base 81, a bottom plate 83 connected to the first rotating motor 82, a mounting seat 84 arranged on the bottom plate 83, a first rocker arm 85 hinged to the mounting seat 84, a second rocker arm 86 hinged to the first rocker arm 85, a triangular plate 87 installed at the free end of the second rocker arm 86, and a support plate 88 hinged to the triangular plate 87;

[0085] There is a second rotating motor 89 on the triangular plate 87. The motor shaft of the second rotating motor 89 is connected to the support plate 88. There is a support plate 810 on one side of the mounting seat 84. The end of the support plate 810 is movably connected to the middle of the second rocker arm 86. There is a push rod motor 811 on the mounting seat 84 connected to the support plate 810.

[0086] The qualified mask units 10 smoothly fall from the end of the blanking tape 7, and the unqualified mask units 10 are removed by the defective product removal manipulator 8. When the defective product removal manipulator 8 performs the removal operation on the unqualified mask units 10, the first rotation motor 82 drives the entire manipulator to rotate to one side of the end of the blanking tape 7. At this time, the push rod motor 811 pushes out the support plate 810, and the support plate 810 drives the second swing arm 86 to extend. The support plate 88 at the end of the second swing arm 86 approaches the end of the blanking tape 7. When the unqualified mask units 10 fall from the end of the blanking tape 7, the support plate 88 catches the unqualified mask units 10. At this time, the first rotation motor 82 drives the entire manipulator to rotate to the defective product storage area, and the second rotation motor 89 drives the support plate 88 to rotate quickly. The unqualified mask units 10 on the support plate 88 fall into the defective product storage area, and the defective product removal work can be completed.

[0087] Further, as Figure 3 shown, the control system 9 includes:

[0088] A mask raw material imaging storage module 91, which is used to store the standard imaging patterns of mask raw materials of different specifications. The standard imaging patterns of mask raw materials of different specifications are mainly obtained by scanning with a scanning imager 64. The obtained standard imaging patterns are imported into the mask raw material imaging storage module for storage. The standard imaging pattern is the imaging pattern after the surface of the mask raw material is covered with a protective film;

[0089] An imaging acquisition module 92, which acquires the patterns scanned and imaged by the scanning imager 64 for the cut mask raw materials (mask units 10) and stores and counts them;

[0090] An imaging comparison module 93, which compares the patterns obtained by the imaging acquisition module 92 with the standard imaging patterns stored in the mask raw material imaging storage module 91;

[0091] A qualified pattern storage module 94, which stores the patterns of qualified mask units and records the number of qualified patterns at the same time;

[0092] An unqualified pattern storage module 95, which stores the patterns of unqualified mask units and records the number of unqualified patterns at the same time;

[0093] Among them, the unqualified pattern storage module 95 includes a first pattern storage unit 951, a second pattern storage unit 952, and a third pattern storage unit 953;

[0094] The first pattern storage unit 951 is mainly used to store and record the number of patterns with bulges or bumps in the patterns;

[0095] The second pattern storage unit 952 is mainly used to store and record the number of patterns with indentation lines in the patterns;

[0096] The third pattern storage unit 953 is mainly used to store patterns with uneven shadow distribution and record the quantity.

[0097] The execution control module 96 controls the defective product rejection manipulator 8 to transfer the defective products of the cut mask raw materials.

[0098] Furthermore, as Figure 5 shown, at the end of the blanking belt 7, there is a qualified product storage box 70. On one side of the qualified product storage box, there are a first defective product storage box 71, a second defective product storage box 72, and a third defective product storage box 73 respectively. At the bottom of the first defective product storage box 71, there is a first position sensor 74. At the bottom of the second defective product storage box 72, there is a second position sensor 75. At the bottom of the third defective product storage box 73, there is a third position sensor 76.

[0099] Inside the execution control module 96, there is a first execution control unit 961 signal - associated with the first position sensor 74, a second execution control unit 962 signal - associated with the second position sensor 75, and a third execution control unit 963 signal - associated with the third position sensor 76. At the bottom of the pallet 88, there is a positioning sensor 812.

[0100] Furthermore, as Figure 6 shown, furthermore, the mask raw material conveying mechanism 2 includes a unwind roller 21 installed on the processing table 1, a guiding roller 22 arranged on one side of the processing table 1. On the unwind roller 21, there is a mask raw material roller 23. The mask raw material 20 on the mask raw material roller 23 is guided by the guiding roller 22 and then spreads flat on the surface of the processing table 1.

[0101] The protective film conveying mechanism 3 includes a support frame 31 fixed on the processing table 1, a unwind disc 32 arranged on the support frame 31, a first transition roller 33, a second transition roller 34, and a third transition roller 35 arranged on one side of the unwind disc 32. Between the first transition roller 33 and the second transition roller 34, there is a tension roller 36. The end of the tension roller 36 is connected to a support rod 37. The end of the support rod 37 is connected to the support frame 31 through a fastening bolt 38.

[0102] A protective film roller is sleeved on the unwind disc 32. The protective film 30 is wound around the outer sides of the first transition roller 33, the second transition roller 34, the third transition roller 35, and the tension roller 36. The protective film 30 spreads flat above the mask raw material 20. After the protective film 30 and the mask raw material 20 are adhered, they pass through the gap between the adhesion guiding roller 4 and the processing table 1. The peripheral surface of the adhesion guiding roller 4 contacts the protective film 30.

[0103] By adopting the above technical solution, the mask raw material conveying mechanism 2 is mainly used to convey the mask raw material 20 (the disinfected and sterilized fabric) to the surface of the processing table 1, and the protective film conveying mechanism 3 is mainly used to convey the protective film 30 to the surface of the processing table 1. The protective film 30 is attached to the surface of the mask raw material 20. After the protective film 30 is attached to the mask raw material 20, it is pressed by the attaching guide roller 4. After the attached protective film 30 and mask raw material 20 pass through the cutting mechanism 5, they are cut into individual mask units 10;

[0104] Wherein, a tension roller 36 is arranged between the first transition roller 33 and the second transition roller 34. The end of the tension roller 36 is connected to a support rod 37. The end of the support rod 37 is connected to the support frame 31 through a fastening bolt 38. After loosening the fastening bolt 38, the support rod 37 can rotate, and the position of the tension roller 36 is adjustable. After adjusting the position of the tension roller 36, the tension degree of the unwinding of the protective film 30 can be changed, ensuring that the protective film 30 is laid flat on the surface of the mask raw material 20 in a better tension state.

[0105] Furthermore, two guide frames 41 are arranged on the processing table 1. Guide grooves 42 are arranged on the guide frames 41. The attaching guide roller 4 is located between the two guide frames 41. A fixing rod 43 is inserted through the middle of the attaching guide roller 4. The attaching guide roller 4 can rotate relative to the fixing rod 43. The end of the fixing rod 43 is provided with a fastening bolt, and the end of the fastening bolt penetrates through the guide groove 42. The nut of the fastening bolt is closely attached to the guide frame 41. A stepping motor is installed at the end of the attaching guide roller 4.

[0106] After loosening the fastening bolt, the fixing rod 43 can slide freely in the guide groove 42. Correspondingly, the height of the attaching guide roller 4 can be changed accordingly. After changing the height of the attaching guide roller 4, the gap between the peripheral surface of the attaching guide roller 4 and the processing table 1 can be adjusted. In this way, the pressing degree of the attaching guide roller 4 on the mask raw material 20 can be changed, ensuring that the extrusion force applied by the attaching guide roller on the mask raw material 20 is uniform.

[0107] Furthermore, a first spraying mechanism 11 for spraying essence liquid on the surface of the mask raw material 20 is arranged on the support frame 31, and a second spraying mechanism 12 for spraying essence liquid on the surface of the protective film 30 is also arranged on the support frame 1;

[0108] The first spraying mechanism 11 includes a first installation space 110 arranged on the support frame 31, a first liquid supply hose 111 arranged in the first installation space 110, a first solenoid valve 112 installed at the end of the first liquid supply hose 111, a plurality of first atomizing nozzles 113 connected to the first solenoid valve 112, a first push rod motor 114 connected to the first liquid supply hose 111 arranged on the inner wall of the first installation space 110, and the end of the first atomizing nozzle 113 faces the surface of the mask raw material 20.

[0109] The second spraying mechanism 12 includes a second installation space 120 provided on the support frame 31, a second liquid supply hose 121 provided in the second installation space 120, a second solenoid valve 122 installed at the end of the second liquid supply hose 121, a plurality of second atomizing nozzles 123 connected to the second solenoid valve 122, a second push rod motor 124 provided on the inner wall of the second installation space 120 and connected to the second liquid supply hose 121, and the end of the second atomizing nozzle 123 faces the surface of the protective film 30.

[0110] Among them, the first spraying mechanism 11 mainly sprays essence on the surface of the laid mask raw material 20 of the processing unit 1 to ensure that the mask raw material 20 is in a suitable moist state. Similarly, the second spraying mechanism 12 mainly sprays essence on the surface of the protective film 30 to ensure that the protective film 30 is in a suitable moist state. Among them, the first solenoid valve 112 and the second solenoid valve 122 can control the flow manually or automatically. When the moisture content of the mask raw material 20 or the protective film 30 is insufficient, the first solenoid valve 112 and the second solenoid valve 122 can control the spraying flow of the essence. Similarly, the first push rod motor 114 can change the distance between the first atomizing nozzle 113 and the mask raw material 20 to ensure that the mask raw material 20 fully contacts the essence, and the second push rod motor 124 can change the distance between the second atomizing nozzle 123 and the protective film 30 to ensure that the protective film 30 fully contacts the essence.

[0111] In summary, after the scanning imager 64 of the present invention scans and images the cut mask raw material (mask unit 10), the control system 9 analyzes and compares the patterns of the received mask units 10, classifies and stores and counts the qualified patterns and unqualified patterns at the same time, and removes the mask units corresponding to the unqualified patterns. The patterns corresponding to the unqualified mask units mainly include three types:

[0112] The first type is a pattern with bulges or bumps. When this pattern appears, it means that the protective film of the mask unit 10 corresponding to this pattern has bulges or bumps. The main reason is that the moisture content of the surface of the mask raw material 20 or the protective film 30 is insufficient. The corresponding solution is to spray more essence on the surface of the mask raw material 20 or the protective film 30. Spraying the essence is mainly completed by the first spraying mechanism 11 and the second spraying mechanism 12. The spraying amount of the essence is completed by adjusting the flow rates of the first solenoid valve 112 and the second solenoid valve 122;

[0113] The second is a pattern with indentation lines. When this pattern appears, it indicates that there is a problem with the insufficient compaction of the mask raw material of the mask unit 10 corresponding to this pattern. This is mainly caused by the uneven extrusion pressure exerted by the fitting guide roller 4 on the mask raw material. The corresponding solution is to adjust the heights at both ends of the fitting guide roller 4 to ensure that the extrusion pressure exerted by the fitting guide roller on the mask raw material is uniform. The method for adjusting the height of the fitting guide roller 4 will not be elaborated here;

[0114] The third is a pattern with uneven shadow distribution. When this pattern appears, it indicates that the material of the mask raw material 20 of the mask unit corresponding to this pattern is unqualified. Under normal circumstances, the shadow of the pattern of the mask raw material 20 under light transmission is uniform. If the pattern is uneven, it indicates that the thickness of the local position of the mask raw material is inconsistent. If the number of patterns with uneven shadow distribution is large, it indicates that there are relatively large problems with the mask raw material of this batch, and the mask raw material needs to be replaced.

[0115] Furthermore, the operation method of the quality inspection and processing equipment for bonding the mask raw material and the protective film includes the following steps:

[0116] S1. The mask raw material conveying mechanism 2 conveys the mask raw material 20 onto the surface of the processing table 1, and the protective film conveying mechanism 3 conveys the protective film 30 onto the surface of the processing table 1;

[0117] S2. The first atomizing nozzle 113 sprays essence liquid onto the surface of the mask raw material 20, and the second atomizing nozzle 123 sprays essence liquid onto the surface of the protective film 30. After the sprayed protective film 30 is laid flat above the mask raw material 20, after the protective film 30 and the mask raw material 20 are bonded, they pass through the gap between the fitting guide roller 4 and the processing table 1. The peripheral surface of the fitting guide roller 4 contacts the protective film 30. In order to improve the driving force for the forward movement of the mask raw material 20, a stepping motor (not shown in the drawings) can be installed at the end of the fitting guide roller 4;

[0118] S3. The cutting mechanism 5 cuts the mask raw material 20 covered with the protective film 30 one by one to form mask units 10. The mask units 10 are conveyed onto the transparent plate 62, and the scanning imager 64 performs scanning imaging on the cut mask units 10;

[0119] S4. The scanned mask units 10 are conveyed by the discharging belt 7 to the qualified product storage box 70. The control system 9 controls the defective product removing manipulator 8 to remove the defective mask units 10 and classify the removed mask units.

[0120] In the specific operations of Step 3 and Step 4, when the device control system 9 cooperates with the defective product removal manipulator 8 for quality inspection, first, the facial mask raw material 20 is cut into individual facial mask units 10 by the cutting mechanism 5. When the facial mask unit 10 passes through the transparent plate 62 on the top of the inspection table 61, the facial mask unit 10 is irradiated by the irradiation lamp 63 at the bottom, and the irradiated facial mask unit 10 becomes transparent. At this time, the scanning imager 64 scans the facial mask unit 10, and the pattern of the scanned facial mask unit 10 is transmitted to the imaging acquisition module 92 of the control system 8. The imaging acquisition module 92 stores the received pattern. At this time, the imaging comparison module 93 compares and analyzes the quality of the pattern of the facial mask unit 10 obtained by the imaging acquisition module 92 with the standard imaging pattern stored in the facial mask raw material imaging storage module 91. The qualified pattern storage module 94 stores the pattern of the qualified facial mask unit 10 and records the number of qualified patterns at the same time; the unqualified pattern storage module 95 stores the pattern of the unqualified facial mask unit 10 and records the number of unqualified patterns at the same time.

[0121] During this process, the first pattern storage unit 951 stores and records the number of patterns with bulges or bumps; the second pattern storage unit 952 stores and records the number of patterns with indentation lines; the third pattern storage unit 953 stores and records the number of patterns with uneven shadow distribution.

[0122] After the pattern comparison and analysis are completed, the control system 9 classifies and removes the facial mask units 10 in real time. When the pattern of the facial mask unit 10 is qualified, the defective product removal manipulator 8 does not work, and the blanking belt 7 directly conveys the qualified facial mask units 10 to the qualified product storage box 70 at the end. If the compared pattern does not meet the standard, the defective product removal manipulator 8 removes the facial mask unit 10 corresponding to the pattern and classifies different types of defective products. The defective product removal operation mainly includes the following three operations:

[0123] 1. When the pattern on the mask unit 10 has bulges or bumps, the first execution control unit 961 of the execution control module 96 sends a mutually matching secret key to the first position sensor 74 and the positioning sensor 812. Each driving part of the defective product removal manipulator 8 receives the instruction sent by the first execution control unit 961, and the defective product removal manipulator 8 transports the mask unit 10 corresponding to the unqualified pattern to the first defective product storage box 71 for storage (the specific transfer operation process of the defective product removal manipulator will not be elaborated); if the number of defective mask units 10 with such patterns reaches 1% of the total number of mask units, the staff needs to take measures. The corresponding solution is to spray more essence on the surface of the mask raw material 20 or the protective film 30, which can avoid the problem of the protective film bulging or bumping inside the mask unit 10; the spraying of the essence is mainly completed by the first spraying mechanism 11 and the second spraying mechanism 12, and the spraying amount of the essence is completed by adjusting the flow rates of the first solenoid valve 112 and the second solenoid valve 122.

[0124] 2. When the pattern on the mask unit 10 has indentation lines, the second execution control unit 962 of the execution control module 96 sends a mutually matching secret key to the second position sensor 75 and the positioning sensor 812. Each driving part of the defective product removal manipulator 8 receives the instruction sent by the second execution control unit 812, and the defective product removal manipulator 8 transports the mask unit 10 corresponding to the unqualified pattern to the second defective product storage box 72 for storage;

[0125] If the number of defective mask units with such patterns reaches 1% of the total number of mask units, the staff needs to take measures. The corresponding solution is to adjust the heights of both ends of the fitting guide roller 4 to ensure that the extrusion force exerted by the fitting guide roller on the mask raw material is uniform;

[0126] 3. When the shadow on the surface of the pattern of the mask unit 10 is uneven, the third execution control unit 963 of the execution control module 96 sends a mutually matching secret key to the third position sensor 76 and the positioning sensor 812. Each driving part of the defective product removal manipulator 8 receives the instruction sent by the third execution control unit 963, and the defective product removal manipulator 8 transports the mask unit corresponding to the unqualified pattern to the third defective product storage box 73 for storage;

[0127] If the number of defective mask units with such patterns reaches 5% of the total number of mask units, the staff needs to take measures. The corresponding solution is to directly replace the qualified mask raw material, and at the same time conduct timely sampling inspections on the mask raw materials in the warehouse and reasonably replace the mask raw material suppliers.

[0128] In summary, the device scans the cut mask unit 10 through the scanning imager 64, compares and analyzes the pattern of the obtained mask unit 10 with the standard pattern pre-stored in the control system 9, classifies and stores and counts the qualified patterns and unqualified patterns at the same time, and automatically removes the mask unit 10 corresponding to the unqualified pattern through mechanical equipment. Pattern analysis and detection are carried out on each mask unit 10, realizing accurate detection of the quality of the mask unit, and at the same time improving the efficiency of mask unit detection and defective product removal;

[0129] The control system 9 of the device can count the unqualified mask units, and at the same time remove and classify different types of defective products. Through the number of defective products after classification and the defective product patterns, the method for solving the quality of defective products can be intuitively traced back, and the operation is convenient and efficient.

[0130] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A quality inspection and processing device for the fitting of mask raw materials and a protective film, comprising a processing table, a mask raw material conveying mechanism arranged on one side of the processing table, a protective film conveying mechanism arranged above the processing table, a fitting guide roller arranged on the processing table on the side far from the mask raw material conveying mechanism, and a cutting mechanism installed on one side of the fitting guide roller; It is characterized in that A protective film fitting quality inspection mechanism is arranged on one side of the cutting mechanism. The protective film fitting quality inspection mechanism includes an inspection table arranged on one side of the processing table. A transparent plate is arranged on the top of the inspection table. An irradiation lamp is arranged in the inspection table. A scanning imager is arranged above the inspection table. The transparent plate is located between the irradiation lamp and the scanning imager; A blanking belt is arranged on one side of the inspection table. A defective product removing manipulator is arranged at the end of the blanking belt. Both the scanning imager and the defective product removing manipulator are connected to a control system; The cutting mechanism cuts the mask raw material after the protective film is fitted. The scanning imager is used to scan and image the cut mask raw material, and the imaged pattern is transmitted to the control system; The defective product removing manipulator includes a base, a first rotating motor arranged on the base, a bottom plate connected to the first rotating motor, a mounting seat arranged on the bottom plate, a first rocker arm hinged to the mounting seat, a second rocker arm hinged to the first rocker arm, a triangular plate installed at the free end of the second rocker arm, and a support plate hinged to the triangular plate; A second rotating motor is arranged on the triangular plate. The motor shaft of the second rotating motor is connected to the support plate. A support plate is arranged on one side of the mounting seat. The end of the support plate is movably connected to the middle part of the second rocker arm. A push rod motor connected to the support plate is arranged on the mounting seat; The control system includes: A mask raw material imaging storage module, which is used to store the standard imaging patterns of mask raw materials of different specifications. The standard imaging patterns of mask raw materials of different specifications are mainly obtained by scanning with the scanning imager. The obtained standard imaging patterns are imported into the mask raw material imaging storage module for storage. The standard imaging pattern is the imaging pattern after the surface of the mask raw material is covered with a protective film; An imaging acquisition module, which acquires the pattern obtained by the scanning imager scanning and imaging the cut mask raw material; An imaging comparison module, which compares the pattern obtained by the imaging acquisition module with the standard imaging pattern stored in the mask raw material imaging storage module; A qualified pattern storage module, which stores the patterns of qualified mask units and records the number of qualified patterns at the same time; An unqualified pattern storage module, which stores the patterns of unqualified mask units and records the number of unqualified patterns at the same time; An execution control module, which controls the defective product removing manipulator to transfer the defective products of the cut mask raw materials; A qualified product storage box is provided at the end of the blanking belt. A first defective product storage box, a second defective product storage box, and a third defective product storage box are respectively provided on one side of the qualified product storage box. A first position sensor is provided at the bottom of the first defective product storage box. A second position sensor is provided at the bottom of the second defective product storage box. A third position sensor is provided at the bottom of the third defective product storage box; A first execution control unit associated with the signal of the first position sensor, a second execution control unit associated with the signal of the second position sensor, and a third execution control unit associated with the signal of the third position sensor are provided in the execution control module. A positioning sensor is provided at the bottom of the pallet. The positioning sensor receives the instructions sent by the first execution control unit, the second execution control unit, and the third execution control unit; The protective film conveying mechanism includes a support frame fixed on the processing table, a winding reel provided on the support frame, a first transition roller, a second transition roller, and a third transition roller provided on one side of the winding reel. A tension roller is provided between the first transition roller and the second transition roller. The end of the tension roller is connected to a support rod. The end of the support rod is connected to the support frame through a fastening bolt; A protective film drum is sleeved on the winding reel. The protective film is wound around the outer sides of the first transition roller, the second transition roller, the third transition roller, and the tension roller. The protective film is laid flat above the mask raw material. After the protective film and the mask raw material are attached, they pass through the gap between the attaching guide roller and the processing table. The circumferential surface of the attaching guide roller contacts the protective film; Two guide frames are provided on the processing table. Guide grooves are provided on the guide frames. The attaching guide roller is located between the two guide frames. A fixing rod is penetrated through the middle of the attaching guide roller. The attaching guide roller can rotate relative to the fixing rod. The end of the fixing rod is provided with a fastening bolt. The end of the fastening bolt penetrates through the guide groove. The nut of the fastening bolt is in close contact with the guide frame; A first spraying mechanism for spraying essence liquid on the surface of the mask raw material is provided on the support frame. A second spraying mechanism for spraying essence liquid on the surface of the protective film is also provided on the support frame; The first spraying mechanism includes a first installation space provided on the support frame, a first liquid supply hose provided in the first installation space, a first electromagnetic valve installed at the end of the first liquid supply hose, a plurality of first atomizing nozzles connected to the first electromagnetic valve. A first push rod motor connected to the first liquid supply hose is provided on the inner wall of the first installation space. The end of the first atomizing nozzle faces the surface of the mask raw material; The second spraying mechanism includes a second installation space provided on the support frame, a second liquid supply hose provided in the second installation space, a second electromagnetic valve installed at the end of the second liquid supply hose, a plurality of second atomizing nozzles connected to the second electromagnetic valve. A second push rod motor connected to the second liquid supply hose is provided on the inner wall of the second installation space. The end of the second atomizing nozzle faces the surface of the protective film; After the pattern comparison and analysis are completed, the control system classifies and rejects the mask units in real time. When the pattern of the mask unit is qualified, the defective product rejection manipulator does not work, and the blanking belt directly transports the qualified mask units to the qualified product storage box at the end. If the pattern after comparison does not meet the standard, the defective product rejection manipulator rejects the mask unit corresponding to the pattern and classifies different types of defective products. The defective product rejection operation mainly includes the following three operations: When the pattern of the mask unit has bulges or bumps, the first execution control unit of the execution control module sends mutually matching keys to the first position sensor and the positioning sensor. Each driving part of the defective product rejection manipulator receives the instruction sent by the first execution control unit, and the defective product rejection manipulator transports the mask unit corresponding to the unqualified pattern to the first defective product storage box for storage; if the number of defective mask units with such a pattern reaches 1% of the total number of mask units, the staff needs to take measures, and the corresponding solution is to spray more essence on the mask raw material or the surface of the protective film, which can avoid the problem of bulges or bumps on the inner protective film of the mask unit; When the pattern of the mask unit has indentation lines, the second execution control unit of the execution control module sends mutually matching keys to the second position sensor and the positioning sensor. Each driving part of the defective product rejection manipulator receives the instruction sent by the second execution control unit, and the defective product rejection manipulator transports the mask unit corresponding to the unqualified pattern to the second defective product storage box for storage; If the number of defective mask units with such a pattern reaches 1% of the total number of mask units, the staff needs to take measures, and the corresponding solution is to adjust the heights at both ends of the fitting guide roller to ensure that the extrusion force exerted by the fitting guide roller on the mask raw material is uniform; When the shadow on the surface of the pattern of the mask unit is uneven, the third execution control unit of the execution control module sends mutually matching keys to the third position sensor and the positioning sensor. Each driving part of the defective product rejection manipulator receives the instruction sent by the third execution control unit, and the defective product rejection manipulator transports the mask unit corresponding to the unqualified pattern to the third defective product storage box for storage; If the number of defective mask units with such a pattern reaches 5% of the total number of mask units, the staff needs to take measures, and the corresponding solution is to directly replace the qualified mask raw material, and at the same time conduct timely spot checks on the mask raw materials in the warehouse and reasonably replace the mask raw material suppliers.

2. The quality inspection and processing equipment for the fitting of the facial mask raw material and the protective film according to claim 1, characterized in that, The mask raw material conveying mechanism includes a unwind roller installed on the processing table and a guide roller arranged on one side of the processing table. A mask raw material roller is provided on the unwind roller, and the mask raw material on the mask raw material roller is guided by the guide roller and then spreads flat on the surface of the processing table.

3. A processing technology of a quality inspection and processing device for fitting a facial mask raw material and a protective film according to claim 1, characterized in that, It includes the following steps: S1. The mask raw material conveying mechanism conveys the mask raw material towards the surface of the processing table, and the protective film conveying mechanism conveys the protective film towards the surface of the processing table; S2. The first atomizing nozzle sprays essence liquid onto the surface of the mask raw material, and the second atomizing nozzle sprays essence liquid onto the surface of the protective film. After the essence liquid is sprayed, the protective film is laid flat above the mask raw material. After the protective film and the mask raw material are adhered, they pass through the gap between the adhesion guiding roller and the processing table, and the circumferential surface of the adhesion guiding roller contacts the protective film; S3. The cutting mechanism cuts the mask raw material covered with the protective film one by one to form mask units. The mask units are conveyed onto the transparent plate, and the scanning imager scans and images the cut mask units; S4. The scanned mask units are conveyed to the qualified product storage box by the blanking belt. The control system controls the defective product rejection manipulator to reject the defective mask units and classify the rejected mask units.

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