Fully automatic in-mold labeling visual inspection system

Abstract

The present invention discloses a fully automatic in-mold labeling visual inspection system for in-mold labeling and visual inspection of cup-shaped products. The system includes a loading rack, a labeling device, a material transfer device, a product receiving platform, a first visual inspection device, a flipping mechanism, a reciprocating device, and a conveyor line. The labeling device places the label on the loading rack into the mold cavity and removes the cup-shaped product that has completed in-mold injection molding and labeling. The material transfer device transfers the removed cup-shaped product to the product receiving platform. The flipping mechanism drives the product receiving platform to flip to a photographing position. The first visual inspection device, driven by the reciprocating device, aligns with each cup-shaped product and performs visual inspection on its interior. The conveyor line receives and transports multiple cup-shaped products that have completed visual inspection. It can be seen that the above system can simultaneously complete the product in-mold labeling and inspection processes, has a high degree of automation, and reduces machine conversion space.

Description

Technical Field

[0001] The present invention relates to the technical field of product labeling, and in particular to a full-automatic in-mold labeling visual inspection system. Background Art

[0002] In-mold labeling (IML) is a process that applies stacked labels to blow-molded or injection-molded products made of materials such as PP, PE, and PET. In practice, pre-printed labels are placed into the blow or injection mold cavity before the blow or injection process. When the mold is closed for blowing or injection, the high temperature and pressure inside the mold melt the special adhesive on the label, fusing it to the bottle or molded part. When the mold opens, the label is fully integrated with the product. Because the in-mold label naturally blends with the plastic part and deforms with the product, it prevents bubbling or wrinkling.

[0003] Generally speaking, after labeling, products need to undergo an inspection process. Currently, the main method is to first label the product using labeling equipment, and then manually or robotically transfer the processed product to inspection equipment for inspection. This process requires manual switching between different machines or the coordination of multiple devices, resulting in significant costs and low production efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a fully automatic in-mold labeling visual inspection system with a high degree of automation and integration.

[0005] To achieve the above objectives, the present invention provides a fully automatic in-mold labeling visual inspection system for in-mold labeling and visual inspection of cup-shaped products, which includes:

[0006] A material carrier, the material carrier being used to store labels;

[0007] a labeling device, which is used to place the label on the carrier into the mold cavity and remove the cup-shaped product that has completed in-mold injection molding and labeling;

[0008] A material transfer device, the material transfer device is used to transfer the taken-out cup-shaped product;

[0009] A product receiving platform, wherein a plurality of product receiving positions arranged in a straight line are provided on the product receiving platform, wherein the plurality of product receiving positions are respectively used to receive and fix a plurality of cup-shaped products transferred by the material transfer device;

[0010] a first visual inspection device, located on one side of the product receiving platform, for visually inspecting the interior and rim of the cup-shaped product;

[0011] a flipping mechanism, the flipping mechanism being used to switch the product receiving platform between a first horizontal position, a photographing position, and a second horizontal position; when the product receiving platform is in the first horizontal position, it is used to receive a plurality of cup-shaped products transferred by the suction device, wherein the openings of the cup-shaped products face upward; when the product receiving platform is flipped to the photographing position, the openings of the cup-shaped products face toward the first visual inspection device; and when the product receiving platform is flipped to the second horizontal position, the openings of the cup-shaped products face downward;

[0012] a reciprocating device, the reciprocating device being used to drive the first visual inspection device to move back and forth so as to align with each cup-shaped product in a photographing position;

[0013] A conveying line is used for receiving and conveying a plurality of cup-shaped products turned over to a second horizontal position.

[0014] Preferably, the material moving device includes a slide that can move longitudinally and a transverse driving mechanism and a transverse moving body arranged on the slide, the transverse driving mechanism is used to drive the transverse moving body to move transversely along the slide, the transverse moving body is provided with a vertical driving mechanism and a vertical moving body, the vertical driving mechanism is used to drive the vertical moving body to move vertically along the transverse moving body, the vertical moving body is fixedly provided with a rotary driver, the output end of the rotary driver is connected to a rotating body, the rotating body is connected to an adsorption assembly, and the adsorption assembly includes a plurality of product adsorption devices.

[0015] Preferably, the reciprocating movement device includes a transverse base and a first drive motor, a first driving wheel and a first transmission wheel are provided at both ends of the transverse base, the output end of the first drive motor is connected to the first driving wheel, a first conveyor belt is wound around the first driving wheel and the first transmission wheel, the first conveyor belt is provided with a tooth portion, a first slide rail is installed between the first driving wheel and the first transmission wheel, a first slider is slidably provided on the first slide rail, the first slider is provided with a locking portion that cooperates with the tooth portion, and the first visual detection device is installed on the first slider.

[0016] Preferably, the flipping mechanism includes a flipping driver and a rotating shaft, the rotating shaft can rotate under the drive of the flipping driver, a connecting piece is fixedly connected between the rotating shaft and the product receiving platform, and the rotation of the rotating shaft can drive the product receiving platform to flip.

[0017] Preferably, the fully automatic in-mold labeling visual inspection system also includes a first actuator and a first receiving container, the first receiving container is arranged on one side of the conveyor line, and the first actuator is used to move the cup-shaped products that have not passed the inspection of the first visual inspection device into the first receiving container.

[0018] Preferably, there are multiple first actuators, each of which includes an air blowing tube. The air blowing tubes of the multiple first actuators are arranged at intervals along the conveying line to correspond to the multiple cup-shaped products on the conveying line.

[0019] Preferably, the fully automatic in-mold labeling visual inspection system further comprises a second visual inspection device arranged downstream of the conveyor line, and the second visual inspection device is used to perform visual inspection on the exterior of the cup-shaped product conveyed downstream of the conveyor line.

[0020] Preferably, the second visual inspection device includes an upper visual device and multiple side visual devices, the shooting end of the upper visual device is facing the conveying plane of the conveyor line to shoot the outer bottom of the cup-shaped product, and the multiple side visual devices are distributed on both sides of the conveyor line for shooting the outer side of the cup-shaped product.

[0021] Preferably, the fully automatic in-mold labeling visual inspection system also includes a second actuator and a second storage container, the second storage container is arranged on one side of the conveyor line, and the second actuator is used to move the cup-shaped products that have not passed the inspection of the second visual inspection device into the second storage container.

[0022] Preferably, the first actuating member includes an air blowing tube, and the air blowing tube is used to blow the cup-shaped product into the second receiving container.

[0023] Compared with the prior art, in the fully automatic in-mold labeling visual inspection system of the present invention, the labeling device and the first visual inspection device are combined through the material transfer device to form an integrated system that can complete the product labeling and inspection process. During production, the labeling device places the label on the carrier into the mold cavity and takes out the cup-shaped product that has completed in-mold injection molding and labeling. Then the material transfer device places the taken-out cup-shaped product on the product receiving platform. The flipping mechanism drives the product receiving platform to flip to the photographing position. The opening of the cup-shaped product faces the first visual inspection device. The first visual inspection device is driven by the reciprocating device to align with each cup-shaped product and perform visual inspection on its interior and cup mouth. Then the product receiving platform is driven by the flipping mechanism to flip to the second horizontal position. The opening of the cup-shaped product faces downward. The conveyor line receives and conveys multiple cup-shaped products that have completed visual inspection of the interior and cup mouth. It can be seen that the above-mentioned fully automatic in-mold labeling visual inspection system can simultaneously complete the product in-mold labeling and the inspection process after labeling, with a high degree of automation and reduced machine conversion space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the fully automatic in-mold labeling visual inspection system according to an embodiment of the present invention.

[0025] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the loading rack shown.

[0026] Figure 3 yes Figure 2 Schematic diagram from another perspective.

[0027] Figure 4 yes Figure 1 The three-dimensional structural diagram of the loading rack and labeling device is shown.

[0028] Figure 5 yes Figure 4 The three-dimensional structural diagram of the labeling device is shown.

[0029] Figure 6 yes Figure 5 The three-dimensional structural diagram of the dual servo pulling mechanism is shown.

[0030] Figure 7 yes Figure 1 The three-dimensional structural diagram of the material transfer device is shown.

[0031] Figure 8 yes Figure 7 The three-dimensional structural schematic diagram of the lateral drive mechanism shown.

[0032] Figure 9 yes Figure 1 The three-dimensional structural diagram of the reciprocating moving device is shown.

[0033] Figure 10 yes Figure 1 The three-dimensional structural diagram of the product receiving platform and the turning mechanism is shown.

[0034] Figure 11 yes Figure 10 Schematic diagram of part of the structure.

[0035] Figure 12 yes Figure 1 The figure shows the three-dimensional structure of the fully automatic in-mold labeling visual inspection system with the loading rack and labeling device hidden.

[0036] Figure 13 yes Figure 1 The three-dimensional structural diagram of the second visual inspection device is shown. DETAILED DESCRIPTION

[0037] In order to explain the technical content and structural features of the present invention in detail, the following is a further description in conjunction with the embodiments and the accompanying drawings.

[0038] See also Figure 1 、 Figure 10 and Figure 12The present invention discloses a fully automatic in-mold labeling visual inspection system for in-mold labeling and visual inspection of cup-shaped products, which includes a carrier 1, a labeling device 2, a material transfer device 3, a product receiving platform 4, a first visual inspection device 5, a flipping mechanism 6, a reciprocating device 7 and a conveyor line 8. The carrier 1 is used to store labels. The labeling device 2 is used to place the label on the carrier 1 into the mold cavity and to take out the cup-shaped product 9 that has completed in-mold injection molding and labeling. The material transfer device 3 is used to transfer the taken-out cup-shaped product 9. The product receiving platform 4 is provided with a plurality of product receiving positions 41 arranged in a straight line, and the plurality of product receiving positions 41 are respectively used to receive and fix a plurality of cup-shaped products 9 transferred by the material transfer device 3. The first visual inspection device 5 is located on one side of the product receiving platform 4, and is used to perform visual inspection on the interior and cup mouth of the cup-shaped product 9. The flipping mechanism 6 is used to switch the product receiving platform 4 between a first horizontal position, a photographing position, and a second horizontal position. When in the first horizontal position, the product receiving platform 4 receives multiple cup-shaped products 9 transferred from the suction device 3, with the openings of the cup-shaped products 9 facing upward. When the product receiving platform 4 flips to the photographing position, the openings of the cup-shaped products 9 face the first visual inspection device 5. When the product receiving platform 4 flips to the second horizontal position, the openings of the cup-shaped products 9 face downward. The reciprocating device 7 is used to drive the first visual inspection device 5 back and forth to align each cup-shaped product 9 in the photographing position. The conveyor line 8 is used to receive and convey the multiple cup-shaped products 9 flipped to the second horizontal position.

[0039] In the fully automatic in-mold labeling visual inspection system disclosed in the above embodiment, the labeling device 2 and the first visual inspection device 5 are coordinated together through the material transfer device 3 to form an integrated system capable of completing the product labeling and inspection processes. During production, the labeling device 2 places the label on the carrier 1 into the mold cavity and removes the cup-shaped product 9 that has completed in-mold injection molding and labeling. The material transfer device 3 then places the removed cup-shaped product on the product receiving platform 4. The flipping mechanism 6 drives the product receiving platform 4 to flip to a photographing position, with the opening of the cup-shaped product 9 facing the first visual inspection device 5. The first visual inspection device 5, driven by the reciprocating device 7, is aligned with each cup-shaped product 9 and visually inspects its interior and cup rim. The product receiving platform 4 is then driven by the flipping mechanism 6 to flip to a second horizontal position, with the opening of the cup-shaped product 9 facing downward. The conveyor line 8 receives and conveys multiple cup-shaped products 9 that have completed visual inspection. As can be seen, the above fully automatic in-mold labeling visual inspection system can simultaneously complete the product in-mold labeling and post-labeling inspection processes, with a high degree of automation and reduced machine conversion space.

[0040] Please refer to Figures 2 to 6Specifically, the loading rack 1 includes a frame 11, a base plate 12 arranged obliquely on the frame 11, and a guide 13 arranged perpendicular to the base plate 12. Labels are stored in a storage space 14 enclosed by the guide 13 and the base plate 12. The base plate 12 is provided with a label passage 121 for the labels to pass through. The labels are placed on the upper end of the guide 13 and slide toward the label passage 121 using gravity. Preferably, the guide 13 is slidably provided with a pressure plate 131. The pressure plate 131 can provide downward sliding force to the labels under its own gravity, allowing the labels to quickly reach the label passage 121. Furthermore, a baffle 132 is provided at the upper end of the guide 13 to prevent the labels from flying out of the upper end of the guide 13.

[0041] The labeling device 2 includes a label suction mechanism 21 and a labeling mechanism 22. The label suction mechanism 21 includes a rotating module 211 and a label sucker 212. The label sucker 212 is installed on the rotating module 211. The rotating module 211 is set on the frame 11. The rotating module 211 drives the label sucker 212 to rotate so that the label sucker 212 reaches the label passing port 121 and sucks a label from the label passing port 121. The labeling mechanism 22 includes a mounting plate 221 and a transverse drive module 222. The output end of the transverse drive module 222 is connected to the mounting plate 221. The mounting plate 221 is provided with a dual servo pull-out mechanism 223 and two movable arms 224. The dual servo pull-out mechanism 223 is used to drive the two movable arms 224 toward or away from each other. The movable arm 224 near the label suction mechanism 21 is provided with a fixture 225 for receiving the label sucked by the label suction mechanism 21. The movable arm 224 away from the label suction mechanism 21 is provided with a suction cylinder 226 for removing the cup-shaped product 9 after the in-mold injection molding and labeling. Utilizing the above-described labeling device 2, the multiple processes of label removal, labeling, and product removal can be completed within a limited space using a relatively small number of simple devices, thereby achieving closer coordination between the devices and improving the degree of automation.

[0042] The dual-servo pulling mechanism 223 includes a second driving pulley 2231, a second transmission pulley 2232, and a second transmission belt 2233 wound around the second driving pulley 2231 and the second transmission pulley 2232. The second transmission belt 2233 is provided with a first mounting member 2234 on one side of the second driving pulley 2231 and the second transmission pulley 2232. A second mounting member 2235 is provided on the other side of the second driving pulley 2231 and the second transmission pulley 2232. The first mounting member 2234 and the second mounting member 2235 are respectively connected to the two movable arms 224. When the second transmission belt 2233 rotates clockwise, the first mounting member 2234 drives one movable arm 224 to the right, and the second mounting member 2235 drives the other movable arm 224 to the left, causing the two movable arms 224 to move toward each other. Conversely, when the second transmission belt 2233 rotates counterclockwise, the two movable arms 224 move away from each other.

[0043] Preferably, there are two second driving wheels 2231 , and the two second driving wheels 2231 are used to control the movement of the two moving arms 224 respectively. One of the second driving wheels 2231 is set at one end corner of the mounting plate 221, and three second transmission wheels 2232 are respectively set at the other three end corners of the mounting plate 221. Two auxiliary driven wheels 2232a are also set on the mounting plate 221. These two auxiliary driven wheels 2232a are used to assist the transmission and winding of the second transmission belt 2233. The second transmission belt 2233 is wound around one second driving wheel 2231, three second transmission wheels 2232 and two auxiliary driven wheels 2232a. There are two first mounting parts 2234, and the two first mounting parts 2234 are respectively set on the parts of the second transmission belt 2233 at the upper and lower ends of the mounting plate 221. The bottom of the movable arm 224 provided with the suction cylinder 226 is mounted on the first mounting part 2234. When the second transmission belt 2233 is transmitted, due to the layout of the second transmission belt 2233, the two first mounting parts 2234 at the upper and lower ends move in the same direction. Another second driving pulley 2231 is positioned at the centerline of the mounting plate 221. A second transmission pulley 2232, which cooperates with this second driving pulley 2231, is also positioned at the centerline of the mounting plate 221. A second transmission belt 2233 is routed between the two. A second mounting member 2235 is mounted on the second transmission belt 2233. The bottom of the movable arm 224, which is equipped with the fixture 225, is mounted on the second mounting member 2235. During system operation, the two movable arms 224 can be moved closer or further apart by simply rotating the two second driving pulleys 2231 in different directions.

[0044] The output end of the transverse drive module 222 is connected to the back end of the mounting plate 221, driving the mounting plate 221 and the two moving arms 224 provided on the mounting plate 221 to move transversely together.

[0045] See also Figure 7 and Figure 8In some embodiments, the material transfer device 3 includes a longitudinally movable slide 31, a transverse drive mechanism 32 and a transverse moving body 33 mounted on the slide 31. The transverse drive mechanism 32 is configured to drive the transverse moving body 33 to move laterally along the slide 31. The transverse moving body 33 is provided with a vertical drive mechanism 34 and a vertical moving body 35. The vertical drive mechanism 34 is configured to drive the vertical moving body 35 to move vertically along the transverse moving body 33. The vertical moving body 35 is fixedly provided with a rotary drive 36. The output end of the rotary drive 36 is connected to a rotating body 37, which is connected to a suction assembly 38. The suction assembly 38 includes multiple product suction devices 39. Through the above-described technical means, the material transfer device 3 can move in both the vertical and transverse directions, while the suction assembly 38 can be rotated. This allows the material transfer device 3 to absorb the cup-shaped products 9 from the labeling device 2 in a limited space or complex environment and arrange the cup-shaped products 9 in an orderly manner on the product receiving platform 4, thereby facilitating coordination between the various devices.

[0046] Specifically, the vertical drive mechanism 34 includes a vertical drive motor 341, a transmission wheel assembly 342, and a vertical transmission belt 343. The vertical drive motor 341 is mounted on the transverse moving body 33, and the transmission wheel assembly 342 is mounted on the transverse moving body 33. Vertical connecting members 351 are provided at each end of the vertical moving body 35. The ends of the vertical transmission belt 343 are fixed to the two vertical connecting members 351. The vertical transmission belt 343 is wound around the output end of the vertical drive motor 341 and the transmission wheel assembly 342. When the vertical drive motor 341 rotates, the vertical moving body 35 is driven by the vertical transmission belt 343 to move vertically along the transverse moving body 33.

[0047] The transverse drive mechanism 32 includes a transverse drive motor 321 mounted on the slide 31, a transverse driving pulley 322 connected to the output of the transverse drive motor 321, a transverse transmission pulley 323, and a transverse transmission belt 324 wound between the transverse driving pulley 322 and the transverse transmission pulley 323. A transverse slider 331 is mounted on the bottom of the transverse movable body 33, which is mounted on the transverse transmission belt 324. When the transverse drive motor 321 rotates, the transverse movable body 33 moves laterally, driven by the transverse transmission belt 324.

[0048] The adsorption assembly 38 also includes a first connection part 381 and a second connection part 382. The first connection part 381 and the second connection part 382 are arranged in an intersecting manner. The rotating body 37 is connected to the first connection part 381. The two ends of the second connection part 382 are respectively connected to the product adsorption device 39. Preferably, the number of the second connection parts 382 is multiple to absorb multiple cup-shaped products 9.

[0049] See also Figure 9In some embodiments, the reciprocating device 7 includes a transverse base 71 and a first drive motor 72. A first driving wheel 711 and a first transmission wheel 712 are disposed at both ends of the transverse base 71. The output end of the first drive motor 72 is connected to the first driving wheel 711. A first conveyor belt 73 is wound between the first driving wheel 711 and the first transmission wheel 712. The first conveyor belt 73 has a toothed portion 731. A first slide rail 74 is mounted between the first driving wheel 711 and the first transmission wheel 712. A first slider 75 is slidably mounted on the first slide rail 74. The first slider 75 has an engaging portion 751 that engages with the toothed portion 731. The first visual inspection device 5 is mounted on the first slider 75. The first drive motor 72 drives the first driving wheel 711 to rotate, and the first conveyor belt 73 drives the first slider 75 to slide on the first slide rail 74, causing the first visual inspection device 5 to reciprocate. The above-described technical means facilitate the precise movement of the first visual inspection device 5, allowing the first visual inspection device 5 to align with each cup-shaped product 9 one by one, thereby improving visual inspection efficiency.

[0050] See also Figures 10 to 12 In some embodiments, the flipping mechanism 6 includes a flipping driver 61 and a rotating shaft 62. The rotating shaft 62 is rotatable under the drive of the flipping driver 61. A connector 63 is fixedly connected between the rotating shaft 62 and the product receiving platform 4. The rotation of the rotating shaft 62 causes the product receiving platform 4 to flip. The above-described technical means facilitate the precise flipping of the product receiving platform 4 and its switching between the first horizontal position, the photographing position, and the second horizontal position. Specifically, the product receiving position 41 includes a receiving ring 411 and a product suction member 412 disposed within the receiving ring 411. When a cup-shaped product 9 is stored in the product receiving position 41, the product suction member 412 absorbs the bottom of the cup-shaped product 9, and the receiving ring 411 contacts the outside of the cup-shaped product 9, securely storing the cup-shaped product 9 on the product receiving platform 4 and preventing it from falling during flipping.

[0051] See also Figure 12 In some embodiments, the fully automatic in-mold labeling visual inspection system further includes a first actuator 10 and a first receiving container 20. The first receiving container 20 is disposed on one side of the conveyor line 8. The first actuator 10 is used to move cup-shaped products 9 that fail inspection by the first visual inspection device 5 into the first receiving container 20. Through the above-described technical means, after the first visual inspection device 5 visually inspects the plurality of cup-shaped products 9 located at the photographing position, the product receiving platform 4 is driven by the turning mechanism 6 to flip to the first horizontal position. The conveyor line 8 receives the plurality of cup-shaped products 9 located at the second horizontal position. The first actuator 10 moves the cup-shaped products 9 that fail inspection by the first visual inspection device 5 into the first receiving container 20. This facilitates sorting out cup-shaped products 9 whose interior and / or cup rim do not meet standards from the plurality of cup-shaped products 9 and transferring them to the first receiving container 20, thereby ensuring the quality of the output cup-shaped products 9.

[0052] Preferably, there are multiple first actuators 10, each comprising an air blower. The air blowers of the multiple first actuators 10 are spaced apart along the conveyor line 8 to correspond to the multiple cup-shaped products 9 on the conveyor line 8. The air outlets of the air blowers are directed toward the first storage container 20 to blow cup-shaped products 9 whose interiors and / or rims do not meet standards away from the conveyor line 8 and drop them into the first storage container 20. Because the first actuators 10 correspond one-to-one to the multiple cup-shaped products 9 on the conveyor line 8, the first actuators 10 automatically remove unqualified cup-shaped products 9 one by one during each inspection, thereby improving transfer efficiency and saving time. Preferably, a first guide portion 201 is provided above the first storage container 20. The first guide portion 201 can receive the cup-shaped product 9 that does not meet the standards inside the conveyor line 8 blown away by the first actuator 10, and transfer the cup-shaped product 9 to the first storage container 20 below it, so as to prevent the cup-shaped product 9 from being blown away by the first actuator 10, which is conducive to the accurate transfer of the cup-shaped product 9 with non-standard interior and / or cup mouth to the first storage container 20.

[0053] See also Figure 12 and Figure 13 In some embodiments, the fully automatic in-mold labeling visual inspection system further includes a second visual inspection device 81 located downstream of the conveyor line 8. The second visual inspection device 81 is used to visually inspect the exterior of the cup-shaped products 9 conveyed downstream of the conveyor line 8. By using the above-mentioned technical means, further visual inspection of the exterior of the cup-shaped products 9 is performed, which helps to screen out products with exteriors that do not meet standards and improve the quality of shipped products.

[0054] Specifically, visual inspection of the exterior of the cup-shaped product 9 can simultaneously complete inspection of the labeling status of the exterior label and the exterior bottom of the cup-shaped product 9 .

[0055] Please continue reading Figure 12 and Figure 13In some embodiments, the second visual inspection device 81 includes an upper visual device 811 and multiple side visual devices 812. The shooting end of the upper visual device 811 faces the conveying plane of the conveyor line 8 to shoot the outer bottom of the cup-shaped product 9. The multiple side visual devices 812 are distributed on both sides of the conveyor line 8 to shoot the outer side of the cup-shaped product 9. Through the above technical means, when the cup-shaped product 9 is conveyed by the conveyor line 8 to the position corresponding to the second visual inspection device 81, the upper visual device 811 set above the conveying plane shoots the outer bottom of the cup-shaped product 9, and the side visual devices 812 set on both sides of the conveyor line 8 respectively shoot the outer side of the cup-shaped product 9. The upper visual device 811 and the multiple side visual devices 812 cooperate to achieve shooting of the outside of the cup-shaped product 9 at different angles, which is conducive to comprehensive analysis of the outside of the cup-shaped product 9 and ensures the quality of the output cup-shaped product 9.

[0056] Specifically, the second visual detection device 81 also includes a mounting frame 813, the bottom of the mounting frame 813 is installed on both sides of the conveyor line 8, the upper visual device 811 is installed on the mounting frame 813, and the number of side visual devices 812 is four. The four side visual devices 812 are arranged in an X shape on both sides of the conveyor line 8, and the upper visual device 811 is arranged above the center of the four side visual devices 812, so as to avoid the phenomenon that some structures are not photographed.

[0057] Please continue reading Figure 12 and Figure 13 In some embodiments, the fully automatic in-mold labeling visual inspection system further includes a second actuator 30 and a second storage container 40. The second storage container 40 is disposed on one side of the conveyor line 8. The second actuator 30 is used to move cup-shaped products 9 that fail inspection by the second visual inspection device 81 into the second storage container 40. This facilitates the rapid transfer of cup-shaped products 9 whose exteriors do not meet the standards among the plurality of cup-shaped products 9 sequentially arranged on the conveyor line 8 to the second storage container 40, further ensuring the quality of the output cup-shaped products 9.

[0058] Specifically, during each inspection, the second actuator 30 automatically removes the cup-shaped product 9. The second storage container 40 is positioned on one side of the conveyor line 8 and downstream of the second visual inspection device 81 in the conveying direction of the conveyor line 8. Preferably, a second guide 401 is positioned above the second storage container 40 and connected to one side of the conveyor line 8. The second guide 401 receives non-compliant cup-shaped products 9 blown off the conveyor line 8 by the second actuator 30 and transfers them to the second storage container 40 below it. This prevents the cup-shaped products 9 from being blown away by the second actuator 30 and facilitates the accurate transfer of non-compliant cup-shaped products 9 to the second storage container 40.

[0059] Furthermore, the second actuator 30 includes an air blowing pipe, which is used to blow the cup-shaped product 9 into the second receiving container 40. This is conducive to faster transfer of the cup-shaped product 9 to the second receiving container 40, thereby improving efficiency.

[0060] The following briefly describes the present invention. Figures 1 to 13 The working process of the specific embodiment shown is to facilitate understanding of the present invention and should not be regarded as limiting the present invention.

[0061] First, the label is stored in the storage space 14 defined by the guide 13 and the base plate 12. The rotating module 211 drives the label sucker 212 to rotate toward the label passage 121. The label sucker 212 absorbs a label from the label passage 121.

[0062] Next, the rotating module 211 rotates, causing the label sucker 212 and the label to face the movable arm 224 equipped with the fixture 225. The dual servo pulling mechanism 223 drives the two movable arms 224 away from each other, causing the fixture 225 to approach the label sucker 212 to absorb the label from the label sucker 212.

[0063] Next, the dual servo extraction mechanism 223 drives the two moving arms 224 to move closer to each other, so that the jig 225 and the suction cylinder 226 are respectively moved to the mold after the mold is opened. The label on the jig 225 is placed in the mold cavity for in-mold injection molding, and the suction cylinder 226 removes the labeled cup-shaped product 9;

[0064] Next, the material transfer device 3 sucks the cup-shaped products 9 on the plurality of suction cylinders 226 and deposits the cup-shaped products 9 on the product receiving platform 4 with the opening facing upward.

[0065] Next, the flipping mechanism 6 drives the product receiving platform 4 to flip to the photographing position, with the opening of the cup-shaped product 9 facing the first visual inspection device 5. Driven by the reciprocating device 7, the first visual inspection device 5 is aligned with each cup-shaped product 9 and performs visual inspection on its interior and cup opening.

[0066] Next, the product receiving platform 4 is turned to the second horizontal position driven by the turning mechanism 6, with the opening of the cup-shaped product 9 facing downward, and the conveyor line 8 receives the multiple cup-shaped products 9 that have completed the visual inspection;

[0067] Next, the first actuator 10 moves the cup-shaped product 9 that has not passed the inspection of the first visual inspection device 5 into the first receiving container 20, and the conveyor line 8 conveys the cup-shaped product 9 that has passed the inspection of the first visual inspection device 5;

[0068] Next, the second visual inspection device 81 performs visual inspection on the exterior of the cup-shaped products 9 on the conveyor line 8 , and the second actuator 30 moves the cup-shaped products 9 that fail the inspection by the second visual inspection device 81 into the second storage container 40 .

[0069] Finally, the conveying line 8 conveys the cup-shaped product 9 that has passed two visual inspections.

[0070] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are within the scope of the present invention.

Claims

1. A fully automatic in-mold labeling visual inspection system for in-mold labeling and visual inspection of cup-shaped products, characterized by: include: A material carrier, the material carrier being used to store labels; a labeling device, which is used to place the label on the carrier into the mold cavity and remove the cup-shaped product that has completed in-mold injection molding and labeling; A material transfer device, the material transfer device is used to transfer the taken-out cup-shaped product; A product receiving platform, wherein a plurality of product receiving positions arranged in a straight line are provided on the product receiving platform, wherein the plurality of product receiving positions are respectively used to receive and fix a plurality of cup-shaped products transferred by the material transfer device; a first visual inspection device, located on one side of the product receiving platform, for visually inspecting the interior and rim of the cup-shaped product; a flipping mechanism, the flipping mechanism being used to switch the product receiving platform between a first horizontal position, a photographing position, and a second horizontal position; the product receiving platform being used to receive a plurality of cup-shaped products transferred from the material transfer device when in the first horizontal position, wherein the openings of the cup-shaped products face upwards; when the product receiving platform is flipped to the photographing position, the openings of the cup-shaped products face toward the first visual inspection device; and when the product receiving platform is flipped to the second horizontal position, the openings of the cup-shaped products face downwards; a reciprocating device, the reciprocating device being used to drive the first visual inspection device to move back and forth so as to align with each cup-shaped product in a photographing position; A conveyor line for receiving and conveying a plurality of cup-shaped products flipped to a second horizontal position; Among them, the product receiving position includes a accommodating ring and a product adsorbing part arranged in the accommodating ring. When the cup-shaped product is stored in the product receiving position, the product adsorbing part is used to absorb the bottom of the cup-shaped product, and the accommodating ring is used to contact the outside of the cup-shaped product, so that the cup-shaped product is stored on the product receiving platform.

2. The fully automatic in-mold labeling visual inspection system according to claim 1, characterized in that: The material moving device includes a slide that can move longitudinally and a transverse driving mechanism and a transverse moving body arranged on the slide. The transverse driving mechanism is used to drive the transverse moving body to move transversely along the slide. The transverse moving body is provided with a vertical driving mechanism and a vertical moving body. The vertical driving mechanism is used to drive the vertical moving body to move vertically along the transverse moving body. A rotary driver is fixed on the vertical moving body. The output end of the rotary driver is connected to a rotating body. The rotating body is connected to an adsorption assembly. The adsorption assembly includes multiple product adsorption devices.

3. The fully automatic in-mold labeling visual inspection system according to claim 1, characterized in that: The reciprocating motion device includes a transverse base and a first driving motor, a first driving wheel and a first transmission wheel are provided at both ends of the transverse base, the output end of the first driving motor is connected to the first driving wheel, a first conveyor belt is wound around the first driving wheel and the first transmission wheel, the first conveyor belt is provided with a tooth portion, a first slide rail is installed between the first driving wheel and the first transmission wheel, a first slider is slidably provided on the first slide rail, the first slider is provided with a locking portion that cooperates with the tooth portion, and a first visual detection device is installed on the first slider.

4. The fully automatic in-mold labeling visual inspection system according to claim 1, characterized in that: The flipping mechanism includes a flipping driver and a rotating shaft. The rotating shaft can rotate under the drive of the flipping driver. A connecting piece is fixedly connected between the rotating shaft and the product receiving platform. The rotation of the rotating shaft can drive the product receiving platform to flip.

5. The fully automatic in-mold labeling visual inspection system according to claim 1, characterized in that: It also includes a first actuating member and a first receiving container. The first receiving container is arranged on one side of the conveying line. The first actuating member is used to move the cup-shaped products that have not passed the inspection of the first visual inspection device into the first receiving container.

6. The fully automatic in-mold labeling visual inspection system according to claim 5, characterized in that: There are multiple first actuators, each of which includes an air blowing tube. The air blowing tubes of the multiple first actuators are arranged at intervals along the conveying line to correspond to the multiple cup-shaped products on the conveying line.

7. The fully automatic in-mold labeling visual inspection system according to claim 1, characterized in that: It also includes a second visual inspection device arranged downstream of the conveyor line, and the second visual inspection device is used to visually inspect the outside of the cup-shaped product conveyed to the downstream of the conveyor line.

8. The fully automatic in-mold labeling visual inspection system according to claim 7, characterized in that: The second visual inspection device includes an upper visual device and multiple side visual devices. The shooting end of the upper visual device is directed toward the conveying plane of the conveyor line to shoot the outer bottom of the cup-shaped product. The multiple side visual devices are distributed on both sides of the conveyor line for shooting the outer side of the cup-shaped product.

9. The fully automatic in-mold labeling visual inspection system according to claim 7, characterized in that: It also includes a second actuating member and a second receiving container, wherein the second receiving container is arranged on one side of the conveying line, and the second actuating member is used to move the cup-shaped products that have not passed the inspection of the second visual inspection device into the second receiving container.

10. The fully automatic in-mold labeling visual inspection system according to claim 9, characterized in that: The second actuating member includes an air blowing pipe, and the air blowing pipe is used to blow the cup-shaped product into the second receiving container.

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