Automatic sealing equipment for double-row PP cups

Abstract

The utility model relates to the field of contact lens manufacturing, in particular to automatic sealing equipment for double-row PP cups, which comprises a turntable provided with a plurality of material carrying plates, a PP cup feeding mechanism annularly arranged along the outer ring of the turntable, a liquid injection mechanism, a lens feeding mechanism, a sealing paper cutting mechanism, a heat sealing mechanism, a coding mechanism and a discharging mechanism, the sealing paper cutting mechanism comprises a discharging assembly, a cutting assembly and a collecting assembly. According to the utility model, a full-automatic production mode is adopted, so that manual intervention links are reduced, pollution is avoided, and the production efficiency is improved; in the feeding process, the PP cups and the lenses are fed respectively, liquid injection is conducted on the PP cups before the lenses are fed, the lenses can be directly immersed in liquid in the feeding process, the exposure risk of the lenses is greatly avoided, and the yield of products is increased.

Description

Technical Field

[0001] This utility model relates to the field of contact lens manufacturing technology, and in particular to an automatic sealing device for double-row PP cups. Background Technology

[0002] In the manufacturing process of contact lenses, the PP cup sealing process plays a crucial role. It is the final key step to ensure the safe and clean packaging of contact lenses. This process is meticulous and rigorous, and the specific steps are as follows:

[0003] First, empty PP cups are placed one by one into the designated tray, preparing for the following operations. Next, lenses are placed into each PP cup, ensuring correct positioning. Then, a lens inspection process is performed, carefully checking each PP cup for the presence of any lenses to avoid omissions. After lens inspection, the liquid filling stage begins. A specific preservation solution is injected into the PP cups to ensure the contact lenses remain moist and clean within the packaging. The next step is sealing, where the PP cups are sealed to prevent external dust and contaminants from entering. Finally, for traceability and management, corresponding coded information is stamped on the PP cups.

[0004] Currently, most production equipment operates on a semi-automatic basis. Furthermore, in existing automated production processes, PP cups are typically arranged in a single row, producing small batches that are insufficient to meet the ever-increasing production demands. Secondly, in existing technologies, PP cups and lenses are usually fed simultaneously before liquid injection. During this process, the lenses are exposed and easily come into contact with dust, affecting cleanliness. Therefore, how to address the high labor costs and low production efficiency associated with deep manual involvement in production is a problem that those skilled in the art need to consider. Utility Model Content

[0005] The purpose of this invention is to provide an automatic sealing device for double-row PP cups to solve the problems of low automation and low production efficiency in the existing technology.

[0006] The technical solution of this utility model is: a double-row PP cup automatic sealing device, including a turntable with multiple material carrier plates, and a PP cup feeding mechanism, a liquid injection mechanism, a lens feeding mechanism, a sealing paper cutting mechanism, a heat sealing mechanism, a coding mechanism and a feeding mechanism arranged in a ring around the outer circle of the turntable. The sealing paper cutting mechanism includes a feeding component, a cutting component and a receiving component.

[0007] The cutting assembly includes a cutting head, a cutting plate, and a first suction cup assembly. The cutting plate has a through-hole, and the cutting head is positioned directly below the through-hole and shears against the edge of the through-hole when it moves upward. The first suction cup assembly is designed to conform to the shape and can pass through the through-hole. The packaging paper is fed by the feeding assembly and passes between the cutting head and the cutting plate, and is collected by the receiving assembly. During cutting, the first suction cup assembly moves downward, passes through the through-hole until its lower end face is parallel to the lower end face of the cutting plate. The cutting head moves upward, presses against the packaging paper, and shears against the edge of the through-hole, pressing the cut packaging paper into the through-hole. At the same time, it presses against the first suction cup assembly, causing the first suction cup assembly to move upward synchronously.

[0008] Preferably, a first driving device capable of driving vertical movement is provided below the cutting head; a second driving device capable of driving vertical movement is connected above the first suction cup assembly via an elastic component, and a first transfer device is connected to the second driving device.

[0009] During cutting, the first suction cup assembly moves upward synchronously with the cutting head and compresses the spring assembly.

[0010] Preferably, the feeding assembly includes a feeding roller, a plurality of first guide wheels, and a first clamping device;

[0011] The receiving assembly includes a receiving roller, multiple second guide wheels, and a second clamping device;

[0012] The packaging paper is unwound from the unwinding roller, passes around the first guide wheel and the first clamping device to the cutting assembly, then passes through the second clamping device and the second guide wheel in sequence, and is finally wound up at the take-up roller.

[0013] Preferably, the PP cup feeding mechanism includes a vibratory feeder and a linear vibratory track connected to the vibratory feeder, a second transfer device and a second suction cup assembly and a third suction cup assembly connected to the second transfer device, as well as a transfer device;

[0014] A cover plate is provided on the straight vibration track, and a third driving device connected to the cover plate and capable of driving the cover plate closer to or away from the straight vibration track. When the third driving device drives the cover plate closer to the straight vibration track, it covers the straight vibration track.

[0015] The second transfer device simultaneously drives the second suction cup assembly and the third suction cup assembly. The second suction cup assembly picks up the PP cup on the linear vibration track and transfers it to the transfer device, while the third suction cup assembly picks up the PP cup at the transfer device and transfers it to the carrier plate.

[0016] Preferably, the lens loading mechanism includes a tray conveying assembly and a third transfer device. The tray conveying assembly includes a first conveying device, a tray splitting assembly, a first positioning assembly, and a tray collecting assembly arranged sequentially along the conveying direction of the first conveying device. At the first positioning assembly, the third transfer device picks up the lens on the tray and transfers it to the PP cup on the carrier plate.

[0017] Preferably, the unloading mechanism includes an unloading robotic arm, a transfer platform, a fourth transfer device, and a collection frame. The fourth transfer device picks up the sealed PP cups on the carrier plate and transfers them to the transfer platform; the unloading robotic arm continues to pick up and transfer them to the collection frame.

[0018] Preferably, the fourth transfer device is connected to a fourth suction cup assembly, which includes a first suction cup group and a second suction cup group with a fixed spacing, a third suction cup group connected to the side away from the first suction cup group and via a fourth driving device, and a fourth suction cup group connected to the side away from the second suction cup group and via a fifth driving device.

[0019] The fourth driving device can drive the third nozzle group to move closer to or away from the second nozzle group; the fifth driving device can drive the fourth nozzle group to move closer to or away from the first nozzle group.

[0020] Preferably, the transfer platform includes a transfer plate and a discharge trough arranged parallel to the transfer plate. The discharge trough is connected to a lever via a sixth driving device. The sixth driving device drives the lever to move within the discharge trough and pushes the PP cup within the discharge trough to move along the discharge trough.

[0021] The second and third suction nozzle groups pick up the PP cups on the carrier plate and transfer them to the intermediate transfer plate; at the same time, the first and fourth suction nozzle groups pick up the PP cups on the intermediate transfer plate and transfer them to the discharge trough.

[0022] Preferably, along the circumference of the turntable, the downward end of the lens feeding mechanism is provided with a first detection device to detect the lens inside the PP cup; the downward end of the sealing paper cutting mechanism is provided with a second detection device to detect the sealing paper; the downward end of the coding mechanism is provided with a third detection device to detect the code; and the intermediate transfer plate is provided with a fourth detection device to detect the heat sealing condition.

[0023] Compared with the prior art, the advantages of this utility model are:

[0024] (1) In this utility model, a fully automated production method is adopted, which reduces the intervention of manual links, avoids pollution and increases production efficiency;

[0025] During the feeding process, the PP cup and the lens are fed separately. The PP cup is filled with liquid before the lens is fed, so the lens can be directly immersed in the liquid during feeding, which greatly avoids the risk of lens exposure and increases the product yield.

[0026] (2) When feeding materials, the adjustable spacing between the first and fourth suction nozzle groups, the second and third suction nozzle groups can simultaneously meet the feeding requirements of the material carrier plate, the intermediate transfer plate and the feeding trough. There is no need to uniformly set the structure of the material carrier, which greatly reduces the production cost. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] Figure 1 This is a schematic diagram of the structure of the double-row PP cup automatic sealing device of this utility model;

[0029] Figure 2 This is a top view of the automatic sealing device for double-row PP cups described in this utility model.

[0030] Figure 3 This is a schematic diagram of the packaging paper cutting mechanism described in this utility model;

[0031] Figure 4 This is a schematic diagram of the feeding mechanism described in this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the fourth transfer device described in this utility model.

[0033] in:

[0034] Turntable 1, material carrier plate 11, jig slot 111;

[0035] PP cup feeding mechanism 2, vibratory feeder 21, linear vibratory track 22, second transfer device 23, second suction cup assembly 231, third suction cup assembly 232, transfer device 233, third drive device 24, cover plate 241.

[0036] Injection mechanism 3;

[0037] Lens feeding mechanism 4, tray conveying assembly 41, first conveying device 411, tray separating assembly 412, first positioning assembly 413, tray collecting assembly 414, third transfer device 42.

[0038] The sealing paper cutting mechanism 5 includes a feeding assembly 51, a feeding roller 511, a first guide wheel 512, a first clamping device 513, a cutting assembly 52, a cutting head 521, a first driving device 5211, a cutting plate 522, a contour hole 5221, a first suction cup assembly 523, an elastic assembly 5231, a second driving device 5232, a receiving assembly 53, a receiving roller 531, a second guide wheel 532, a second clamping device 533, and a first transfer device 54.

[0039] Heat sealing mechanism 6;

[0040] 7 code-breaking agencies;

[0041] The following components are included: unloading mechanism 8, unloading robotic arm 81, transfer platform 82, transfer plate 821, unloading trough 822, sixth drive device 823, lever 824, fourth transfer device 83, fourth suction cup assembly 831, first suction nozzle group 8311, second suction nozzle group 8312, third suction nozzle group 8313, fourth suction nozzle group 8314, fourth drive device 8315, fifth drive device 8316, and collection frame 84.

[0042] First detection device 91, second detection device 92, third detection device 93, and fourth detection device 94. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to specific embodiments:

[0044] like Figures 1-5As shown, this utility model is applied to the packaging of contact lenses. The contact lens is placed in a PP cup, liquid is injected into the PP cup, and then it is covered with aluminum foil for sealing. In this embodiment, two sets of PP cups can be operated at a time, with each set containing five consecutive PP cups. Specifically, the PP cup feeding mechanism 2 feeds two sets of empty PP cups onto the carrier plate 11 of the turntable 1; the turntable 1 drives the carrier plate 11 to rotate, and when the carrier plate 11 rotates to the liquid injection mechanism 3, the liquid injection mechanism 3 injects protective liquid into the PP cup; the carrier plate 11 continues to rotate to the lens feeding mechanism 4 to feed the lens, after which the lens is immersed in the liquid; the carrier plate 11 continues to rotate to the first detection device 91 to detect whether a lens is placed in the PP cup; the sealing paper cutting mechanism 5 cuts the aluminum foil, and when the carrier plate 11 rotates to the sealing paper cutting mechanism 5, the cut aluminum foil is transferred to the PP cup; the carrier plate 11 continues to rotate to the first detection device 91 to detect whether a lens is placed in the PP cup; the sealing paper cutting mechanism 5 cuts the aluminum foil, and when the carrier plate 11 rotates to the sealing paper cutting mechanism 5, the cut aluminum foil is transferred to the PP cup; the sealing paper cutting mechanism 5 cuts the aluminum foil. The loading plate 11 moves to the second detection device 92 to detect whether aluminum foil is placed on the PP cup; the loading plate 11 moves to the heat sealing mechanism 6 to heat seal the aluminum foil and PP cup. The heat sealing mechanism 6 has two locations, sealing one set of PP cups at a time; the loading plate 11 moves to the coding mechanism 7 to mark characters, dates, and other information on the aluminum foil; when it rotates to the third detection device 93, the coding is checked to confirm whether coding is done and its completeness and accuracy; when it rotates to the unloading mechanism 8, the heat sealing is checked by the fourth detection device 94 to check the integrity of the heat seal, and the PP cup is unloaded simultaneously. Specifically:

[0045] Multiple material carrier plates 11 are provided on the turntable 1. The turntable 1 rotates a certain angle each time, corresponding to the corresponding production and inspection processes. Of course, empty stations can also be set according to the actual production rhythm, that is, when the material carrier plate 11 moves to an empty station, no operation is performed. The material carrier plate 11 is provided with a fixture slot 111, and the fixture slot 111 is arranged in two parallel rows, each row can hold a set of PP cups.

[0046] The PP cup feeding mechanism 2 includes a vibratory plate 21 and a linear vibratory track 22 connected to the vibratory plate 21, a second transfer device 23 and a second suction cup assembly 231 and a third suction cup assembly 232 connected to the second transfer device 23, as well as a transfer device 233.

[0047] A cover plate 241 is provided on the vertical vibration track 22, and a third drive device 24 is connected to the cover plate 241 and can drive the cover plate 241 to move closer to or away from the vertical vibration track 22. The cover plate 241 is slightly higher than the vertical vibration track 22. When the PP cups are conveyed on the vertical vibration track 22, the third drive device 24 drives the cover plate 241 to cover the vertical vibration track 22 to prevent the PP cups from squeezing each other and being squeezed out of the vertical vibration track 22.

[0048] The second transfer device 23 simultaneously drives the second suction cup assembly 231 and the third suction cup assembly 232. The second suction cup assembly 231 picks up the PP cup on the vertical vibration track 22 and transfers it to the transfer device 233, while the third suction cup assembly 232 picks up the PP cup at the transfer device 233 and transfers it to the carrier plate 11. When the second suction cup assembly 231 picks up the PP cup on the vertical vibration track 22, the third drive device 24 drives the cover plate 241 away from the vertical vibration track 22 to avoid interference with the second suction cup assembly 231.

[0049] After the PP cup is filled, the material carrier plate 11 rotates to the liquid injection mechanism 3, and the liquid injection mechanism 3 injects liquid into the PP cup.

[0050] The lens loading mechanism 4 includes a tray conveying assembly 41 and a third transfer device 42. The tray conveying assembly 41 includes a first conveying device 411, a tray splitting assembly 412, a first positioning assembly 413, and a tray collecting assembly 414 arranged sequentially along the conveying direction of the first conveying device 411. At the first positioning assembly 413, the third transfer device 42 picks up the lenses on the tray and transfers them to PP cups on the carrier plate 11. In this embodiment, multiple lenses are placed on each tray, and multiple trays are stacked at the tray splitting assembly 412. Each time, the first conveying device 411 conveys one tray to the first positioning assembly 413 for positioning. After positioning, the third transfer device 42 picks up the lenses and transfers them to PP cups on the carrier plate 11. Empty trays are then conveyed by the first conveying device 411 to the tray collecting assembly 414 for stacking. The tray splitting and tray stacking operations of the tray splitting assembly 412 and the tray collecting assembly 414 are existing technologies and will not be described in detail in this embodiment.

[0051] After the lens is loaded, it rotates with the carrier plate 11 to the first detection device 91 to detect and confirm that there is a lens in each PP cup.

[0052] like Figure 3 As shown, the sealing paper cutting mechanism 5 includes a feeding assembly 51, a cutting assembly 52, and a receiving assembly 53.

[0053] The cutting assembly 52 includes a cutting head 521, a cutting plate 522, and a first suction cup assembly 523. The cutting plate 522 has a through-hole 5221. The cutting head 521 is positioned directly below the through-hole 5221 and, when moving upwards, shears against the edge of the through-hole 5221. The first suction cup assembly 523 is designed to conform to the shape and can penetrate the through-hole 5221. The packaging paper is fed by the feeding assembly 51 and passes between the cutting head 521 and the cutting plate 522, and is collected by the receiving assembly 53. In this embodiment, a first driving device 5211 is provided below the cutting head 521 to drive its vertical movement. A second driving device 5232 is connected above the first suction cup assembly 523 via an elastic component 5231 to drive its vertical movement. A first transfer device 54 is connected to the second driving device 5232.

[0054] The feeding assembly 51 includes a feeding roller 511, multiple first guide rollers 512, and a first clamping device 513. The receiving assembly 53 includes a receiving roller 531, multiple second guide rollers 532, and a second clamping device 533. Tensioning rollers are provided at both the first guide rollers 512 and the second guide rollers 532, ensuring that the aluminum foil is always under tension.

[0055] The packaging paper is unwound from the unwinding roller 511, passes around the first guide wheel 512 and the first clamping device 513 to the cutting assembly 52, passes between the cutting plate 522 and the cutting head 521, and then passes through the second clamping device 533 and the second guide wheel 532 in sequence, and is finally wound up at the take-up roller 531.

[0056] During cutting, the first clamping device 513 and the second clamping device 533 are activated and clamp the aluminum foil. At this time, the aluminum foil at the cutting assembly 52 is in a taut and flat state. Driven by the second driving device 5232, the first suction cup assembly 523 moves downward through the contour hole 5221 until its lower end face is parallel to the lower end face of the cutting plate 522, that is, the first suction cup assembly 523 just touches the surface of the packaging paper. Then, driven by the first driving device 5211, the cutting head 521 moves upward to press against the packaging paper, and the packaging paper presses against the first suction cup assembly 523. When the cutting head 521 continues to move upward, it forms a shear with the edge of the contour hole 5221, cuts the packaging paper and presses it into the contour hole 5221, while pressing the first suction cup assembly 523 upward, so that the spring assembly is compressed, and the first suction cup assembly 523 moves upward synchronously. Subsequently, the first driving device 5211 and the second driving device 5232 respectively drive the cutting head 521 and the first suction cup assembly 523 to reset. The first suction cup assembly 523 sucks up the cut packaging paper and moves it to the carrier plate 11 under the drive of the first transfer device 54, and places it on the PP cup on the carrier plate 11.

[0057] The carrier plate 11 rotates to the second detection device 92 to detect the placement of the sealing paper, in order to confirm that the sealing paper is placed on both sets of PP cups and that the sealing paper is placed in the correct position without any damage.

[0058] The carrier plate 11 rotates to the heat sealing mechanism 6 to heat seal the sealing paper. In this embodiment, the heat sealing mechanism 6 is set in two consecutive locations to heat seal two sets of PP cups respectively.

[0059] After heat sealing, the carrier plate 11 rotates to the coding mechanism 7, where labels, dates, and other information are printed on the surface of the heat-sealed paper. After coding, it rotates to the third detection device 93 to detect the coding information, ensuring that the coding information is accurately positioned and clear.

[0060] like Figures 4-5As shown, the unloading mechanism 8 includes an unloading robotic arm 81, a transfer platform 82, a fourth transfer device 83, and a collection frame 84. The fourth transfer device 83 picks up the sealed PP cups on the loading plate 11 and transfers them to the transfer platform 82; the unloading robotic arm 81 continues to pick up and transfer them to the collection frame 84.

[0061] A fourth suction cup assembly 831 is connected to the fourth transfer device 83. The fourth suction cup assembly 831 includes a first suction nozzle group 8311 and a second suction nozzle group 8312 with a fixed spacing, a third suction nozzle group 8313 connected to the side away from the first suction nozzle group 8311 via a fourth driving device 8315, and a fourth suction nozzle group 8314 connected to the side away from the second suction nozzle group 8312 via a fifth driving device 8316. The fourth driving device 8315 can drive the third suction nozzle group 8313 to move closer to or away from the second suction nozzle group 8312; the fifth driving device 8316 can drive the fourth suction nozzle group 8314 to move closer to or away from the first suction nozzle group 8311.

[0062] The transfer platform 82 includes a transfer plate 821 and a discharge trough 822 arranged parallel to the transfer plate 821. The discharge trough 822 is connected to a lever 824 via a sixth drive device 823. The sixth drive device 823 drives the lever 824 to move within the discharge trough 822, pushing the PP cups within the discharge trough 822 along the discharge trough 822. The second suction nozzle group 8312 and the third suction nozzle group 8313 pick up the PP cups on the carrier plate 11 and transfer them to the transfer plate 821; simultaneously, the first suction nozzle group 8311 and the fourth suction nozzle group 8314 pick up the PP cups on the transfer plate 821 and transfer them to the discharge trough 822. A fourth detection device 94 is provided at the transfer plate 821 to detect the heat sealing condition.

[0063] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. An automatic sealing device for double-row PP cups, characterized in that: It includes a turntable with multiple material carrier plates, and a PP cup feeding mechanism, a liquid injection mechanism, a lens feeding mechanism, a sealing paper cutting mechanism, a heat sealing mechanism, a coding mechanism, and a feeding mechanism arranged in a ring around the outer circle of the turntable. The sealing paper cutting mechanism includes a feeding component, a cutting component, and a receiving component. The cutting assembly includes a cutting head, a cutting plate, and a first suction cup assembly. The cutting plate has a through-hole, and the cutting head is positioned directly below the through-hole and shears against the edge of the through-hole when it moves upward. The first suction cup assembly is designed to conform to the shape and can pass through the through-hole. The packaging paper is fed by the feeding assembly and passes between the cutting head and the cutting plate, and is collected by the receiving assembly. During cutting, the first suction cup assembly moves downward, passes through the through-hole until its lower end face is parallel to the lower end face of the cutting plate. The cutting head moves upward, presses against the packaging paper, and shears against the edge of the through-hole, pressing the cut packaging paper into the through-hole. At the same time, it presses against the first suction cup assembly, causing the first suction cup assembly to move upward synchronously.

2. The automatic sealing device for double-row PP cups according to claim 1, characterized in that: Below the cutting head is a first driving device that can drive it to move vertically; above the first suction cup assembly is a second driving device that can drive it to move vertically, and the second driving device is connected to a first transfer device. During cutting, the first suction cup assembly moves upward synchronously with the cutting head and compresses the spring assembly.

3. The automatic sealing device for double-row PP cups according to claim 2, characterized in that: The feeding assembly includes a feeding roller, a plurality of first guide wheels, and a first clamping device; The receiving assembly includes a receiving roller, multiple second guide wheels, and a second clamping device; The packaging paper is unwound from the unwinding roller, passes around the first guide wheel and the first clamping device to the cutting assembly, then passes through the second clamping device and the second guide wheel in sequence, and is finally wound up at the take-up roller.

4. The automatic sealing device for double-row PP cups according to claim 1, characterized in that: The PP cup feeding mechanism includes a vibratory feeder and a linear vibrating track connected to the vibratory feeder, a second transfer device and a second suction cup assembly and a third suction cup assembly connected to the second transfer device, as well as a transfer device; A cover plate is provided on the straight vibration track, and a third driving device connected to the cover plate and capable of driving the cover plate closer to or away from the straight vibration track. When the third driving device drives the cover plate closer to the straight vibration track, it covers the straight vibration track. The second transfer device simultaneously drives the second suction cup assembly and the third suction cup assembly. The second suction cup assembly picks up the PP cup on the linear vibration track and transfers it to the transfer device, while the third suction cup assembly picks up the PP cup at the transfer device and transfers it to the carrier plate.

5. The automatic sealing device for double-row PP cups according to claim 1, characterized in that: The lens loading mechanism includes a tray conveying assembly and a third transfer device. The tray conveying assembly includes a first conveying device, a tray splitting assembly, a first positioning assembly, and a tray collecting assembly arranged sequentially along the conveying direction of the first conveying device. At the first positioning assembly, the third transfer device picks up the lens on the tray and transfers it to the PP cup on the carrier plate.

6. The automatic sealing device for double-row PP cups according to claim 1, characterized in that: The unloading mechanism includes an unloading robotic arm, a transfer platform, a fourth transfer device, and a collection frame. The fourth transfer device picks up the sealed PP cups on the loading plate and transfers them to the transfer platform; the unloading robotic arm continues to pick up and transfer them to the collection frame.

7. The automatic sealing device for double-row PP cups according to claim 6, characterized in that: The fourth transfer device is connected to a fourth suction cup assembly, which includes a first suction cup group and a second suction cup group with a fixed spacing, a third suction cup group connected to the side away from the first suction cup group and via a fourth driving device, and a fourth suction cup group connected to the side away from the second suction cup group and via a fifth driving device. The fourth driving device can drive the third nozzle group to move closer to or away from the second nozzle group; the fifth driving device can drive the fourth nozzle group to move closer to or away from the first nozzle group.

8. The automatic sealing device for double-row PP cups according to claim 7, characterized in that: The transfer platform includes a transfer plate and a feeding trough arranged parallel to the transfer plate. The feeding trough is connected to a lever via a sixth driving device. The sixth driving device drives the lever to move within the feeding trough and pushes the PP cup within the feeding trough to move along the feeding trough. The second and third suction nozzle groups pick up the PP cups on the carrier plate and transfer them to the intermediate transfer plate; at the same time, the first and fourth suction nozzle groups pick up the PP cups on the intermediate transfer plate and transfer them to the discharge trough.

9. The automatic sealing device for double-row PP cups according to claim 8, characterized in that: Along the circumference of the turntable, the downward end of the lens feeding mechanism is equipped with a first detection device to detect the lens inside the PP cup; the downward end of the sealing paper cutting mechanism is equipped with a second detection device to detect the sealing paper; the downward end of the coding mechanism is equipped with a third detection device to detect the marking code; and the intermediate transfer plate is equipped with a fourth detection device to detect the heat sealing condition.

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