Automatic packaging machine for contact lenses

Abstract

The invention discloses an automatic packaging machine for contact lenses, which relates to the technical field of contact lens packaging and comprises a conveying mechanism, a discharging mechanism and a filling mechanism. The conveying mechanism comprises a transmission assembly and a conveying chain, the transmission assembly is matched with the conveying chain and used for driving the conveying chain to move, partition plates are arranged on the conveying chain at intervals, every two partition plates form a group, a putting area is arranged between each group of partition plates, brackets are fixed to the opposite faces of each group of partition plates, and the brackets are fixed to the conveying chain. A plurality of circular grooves are formed in the bracket at intervals, pressure sensing modules are laid at the bottoms of the circular grooves, springs are connected to the bottoms of the circular grooves, telescopic cylinders are connected to the other ends of the springs, the telescopic cylinders are in sliding fit with the circular grooves, and trays are fixed to the upper sides of the telescopic cylinders. The bubble cap conveying device can be used for protecting bubble caps in the conveying process, and the conveying quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of contact lens packaging, and specifically relates to an automatic contact lens encapsulation machine. Background Art

[0002] A contact lens is a thin transparent lens directly worn on the surface of the eyeball cornea, used for correcting vision (such as myopia, hyperopia, astigmatism, etc.) or changing the appearance of the eyes (such as colored contact lenses). The production process of contact lenses involves multiple complex processes, among which encapsulation is an important link in contact lens production, and its purpose is to ensure the safety and hygiene of the lenses during storage and use.

[0003] Compared with contact lenses that can be used for a long time such as annual replacement types, daily disposable contact lenses can be discarded after daily use without the need for care, have high hygiene, and are very convenient in daily replacement. Daily disposable contact lenses do not require the packaging of a lens case, and usually adopt blister packaging, and then a certain number of blisters are sealed into a paper box for storage.

[0004] Blisters are not as easy to shift as lens cases, and the overall structure is mostly plate-shaped. The existing methods for blister packing into boxes mostly use automatic feeding devices or manual handling. Automatic feeding devices are highly efficient, but they cannot timely exclude defective products, and at the same time, problems such as damage to blisters caused by dropping and bumping may occur during the feeding process. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic contact lens encapsulation machine to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: An automatic contact lens encapsulation machine includes a conveying mechanism, a feeding mechanism, and a loading mechanism. The feeding mechanism is arranged on the inlet side of the conveying mechanism and is used for feeding blisters. The loading mechanism is arranged on the outlet side of the conveying mechanism and is externally connected to a packaging box conveying line, and is used for transferring the blisters on the conveying mechanism into the packaging box.

[0007] According to the above technical solution, the conveying mechanism includes a transmission component and a conveying chain. The transmission component cooperates with the conveying chain to drive the conveying chain to move. Partition plates are arranged at intervals on the conveying chain. Every two partition plates form a group, and a feeding area is set between each group of partition plates. On the opposite side of each group of partition plates, a bracket is fixed. A number of circular grooves are arranged at intervals on the bracket. A pressure sensing module is laid at the bottom of the circular groove and is connected to a spring. The other end of the spring is connected to a telescopic cylinder. The telescopic cylinder is slidably matched with the circular groove, and a tray is fixed on the upper side of the telescopic cylinder.

[0008] According to the above technical solution, the telescopic cylinder is set as a hollow structure with an upper opening. Several windows are opened on the circumference of the lower end of the telescopic cylinder. The middle of the tray is perforated and communicates with the inside of the telescopic cylinder. A sealing plate adapted to the opening of the telescopic cylinder is fixed at the lower end of the tray.

[0009] According to the above technical solution, communication grooves are provided on each circular groove, each communication groove is connected to an air flow channel, an air flow valve is externally connected to the air flow channel, and an air pump is externally connected to the air flow valve for inputting or extracting air flow into the air flow channel.

[0010] According to the above technical solution, the height at which the communication groove is provided is located at the lower end of the telescopic cylinder in the non-bubble cap state. At this time, the window is higher than the plane where the communication groove is located, and the inside of the telescopic cylinder is not communicated with the communication groove; when there is a bubble cap at the upper end of the telescopic cylinder, the telescopic cylinder moves downward under the action of a downward pressure. At this time, the height of the window is equal to the height of the communication groove, and the inside of the telescopic cylinder is communicated with the communication groove.

[0011] According to the above technical solution, a test cylinder is provided inside the telescopic cylinder. A through groove is provided in the middle of the test cylinder, long grooves corresponding to the respective windows are provided on the circumference of the test cylinder, and a humidity sensing block is provided in the through groove.

[0012] According to the above technical solution, the height of the upper side of the test cylinder is lower than the lower side of the sealing plate to avoid affecting the internal air flow. The through groove is directly opposite to the center of the tray and the diameter width is at least equal to the aperture of the tray opening. The through groove is used to receive the liquid falling from the tray and confirm it through the humidity sensing block, and the long groove is used as an air flow passage. The test cylinder is used to detect whether the bubble cap leaks.

[0013] According to the above technical solution, a first screw is fixed at one end of the bracket. The first screw is passed through the partition plate for adjusting the distance between the bracket and the partition plate. A fastening member is provided in cooperation with the first screw for fixing the first screw.

[0014] According to the above technical solution, several tooth grooves are provided on the lower side of the conveying chain. Two sets of transmission components are provided, which are respectively located on the input side and the output side of the conveying chain. The transmission component includes a driving tooth and a driving motor. The driving end of the driving motor is connected to the driving tooth, and the driving tooth is engaged with the tooth groove.

[0015] According to the above technical solution, the blanking mechanism includes a mounting seat. A set of sliding shafts are fixed on one side of the mounting seat facing the conveying mechanism. A set of wall plates are slidably arranged on the sliding shafts. A second screw is passed through the wall plates, and the wall plates are in threaded cooperation with the second screw. A handle is provided at one end of the second screw.

[0016] According to the above technical solution, a limiting frame is provided on the opposite side of the wall plate for restricting the moving range of the bubble cap. A rotating motor and a belt wheel assembly are fixed on the mounting seat. The belt wheel assembly includes a belt and several rotating wheels. Two of the rotating wheels are respectively arranged on the wall plates and are connected to a rotating rod. Two baffle leaves are arranged at intervals on the rotating rod.

[0017] According to the above technical solution, the loading mechanism includes a first mounting plate and a second mounting plate. A first rocker arm and a second rocker arm are respectively rotatably arranged on the first mounting plate and the second mounting plate. Motors are externally connected to one ends of the first rocker arm and the second rocker arm respectively. A first connecting rod and a second connecting rod are respectively connected to the other ends of the first rocker arm and the second rocker arm. A slide rail is arranged on the side of the first mounting plate facing the second mounting plate. A first pushing arm and a second pushing arm are sequentially slidably arranged on the slide rail. The first pushing arm is connected to the first connecting rod, and the second pushing arm is connected to the second connecting rod.

[0018] According to the above technical solution, a lifting plate is arranged at the end of the first pushing arm, and a pushing block is arranged at the end of the second pushing arm. A guide rod is connected to the side of the pushing block facing the lifting plate. The guide rod is connected to a pushing block for materials. The pushing block for materials is in sliding fit with the lifting plate.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by providing a telescopic cylinder, on the one hand, the tray is used to lift the dropped blisters. Compared with directly dropping on the conveying chain, the blisters at a certain height are beneficial for the transfer of the loading mechanism. On the other hand, through the provided spring, after the blister drops onto the tray, it can play a good shock-absorbing effect, reducing the collision force caused by the feeding action and reducing the possibility of breakage. Finally, through the provided pressure sensing module, the dropping position of the blister can be identified, so as to judge whether the dropping of the blister is offset, so as to adjust the blanking mechanism; by providing a communication groove, an air flow channel and a window, an internal negative pressure state can be created, thereby providing the stability of the blister transportation team. Description of the Drawings

[0020] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the overall structural schematic diagram of the packaging machine of the present invention; Figure 2 is the position schematic diagram of the feeding area of the present invention; Figure 3 is the structural schematic diagram of the partition plate and the bracket of the present invention; Figure 4 is the structural schematic diagram of the circular groove of the present invention; Figure 5 is the non-compressed state schematic diagram of the telescopic cylinder of the present invention; Figure 6 is the compressed state schematic diagram of the telescopic cylinder of the present invention; Figure 7 is the structural schematic diagram of the telescopic cylinder, the tray and the test cylinder of the present invention; Figure 8 is the position schematic diagram of the air flow channel of the present invention; Figure 9 is the structural schematic diagram of the tooth groove of the present invention; Figure 10 is a schematic structural diagram of the blanking mechanism of the present invention; Figure 11 is a schematic structural diagram of the loading mechanism of the present invention; Figure 12 is a schematic structural diagram of the lifting plate and the pushing block of the present invention.

[0021] In the figure: 1. Blanking mechanism; 11. Mounting seat; 111. Rotating motor; 112. Belt pulley assembly; 12. Sliding shaft; 13. Wall plate; 131. Limiting frame; 14. Second screw; 15. Handle; 16. Rotating rod; 17. Baffle leaf; 2. Loading mechanism; 21. First mounting plate; 22. Second mounting plate; 23. First rocker arm; 24. Second rocker arm; 25. First connecting rod; 26. Second connecting rod; 27. Slide rail; 28. First pushing arm; 281. Lifting plate; 29. Second pushing arm; 291. Pushing block; 292. Guide rod; 293. Pushing block; 3. Transmission assembly; 31. Driving tooth; 32. Driving motor; 4. Conveyor chain; 41. Tooth groove; 5. Partition plate; 51. Delivery area; 6. Bracket; 61. Circular groove; 611. Connecting groove; 612. Air flow channel; 62. Spring; 63. Telescopic cylinder; 631. Window; 64. Tray; 641. Sealing plate; 65. Air flow valve; 66. Test cylinder; 661. Through groove; 662. Long groove; 663. Humidity sensing block; 67. First screw; 68. Fastener. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 - 12 , the present invention provides a technical solution: An automatic contact lens packaging machine includes a conveying mechanism, a blanking mechanism 1, and a loading mechanism 2. The blanking mechanism 1 is arranged on the inlet side of the conveying mechanism and is used for putting blisters. The loading mechanism 2 is arranged on the outlet side of the conveying mechanism and is externally connected to a packaging box conveying line, and is used for transferring the blisters on the conveying mechanism into the packaging box; The conveying mechanism includes a transmission assembly 3 and a conveying chain 4. The transmission assembly 3 cooperates with the conveying chain 4 to drive the conveying chain 4 to move. Partition plates 5 are arranged at intervals on the conveying chain 4. Every two partition plates 5 form a group, and a placement area 51 is defined between each group of partition plates 5. Brackets 6 are fixed on the opposite sides of each group of partition plates 5. A number of circular grooves 61 are arranged at intervals on the brackets 6. A pressure-sensitive module is laid at the bottom of the circular grooves 61 and connected with a spring 62. The other end of the spring 62 is connected with a telescopic cylinder 63. The telescopic cylinder 63 is slidably matched with the circular groove 61. A tray 64 is fixed on the upper side of the telescopic cylinder 63.

[0024] The supplementary description based on the above structure is as follows: On the one hand, the tray 64 is used to hold the dropped blisters. Compared with directly dropping on the conveying chain 4, the blisters with a certain height are beneficial for the transfer of the loading mechanism 2. On the other hand, through the arranged spring 62, after the blister drops onto the tray 64, it can play a good shock-absorbing effect and reduce the impact force caused by the feeding action. Finally, through the arranged pressure-sensitive module, the dropping position of the blister can be identified, so as to judge whether the dropping of the blister is offset, so as to adjust the blanking mechanism 1.

[0025] Furthermore, as Figures 4 - 7 shown, the telescopic cylinder 63 is arranged as a hollow structure with an upper opening. A number of windows 631 are opened on the circumference of the lower end of the telescopic cylinder 63. A hole is opened in the middle of the tray 64 and is communicated with the inside of the telescopic cylinder 63. A sealing plate 641 adapted to the opening of the telescopic cylinder 63 is fixed at the lower end of the tray 64.

[0026] Even further, communication grooves 611 are arranged on each circular groove 61. Each communication groove 611 is connected with an air flow channel 612. An air flow valve 65 is externally connected to the air flow channel 612. The air flow valve 65 is externally connected to an air pump for inputting or extracting air flow into the air flow channel 612.

[0027] It should be added that: The height of the arranged communication groove 611 is located at the lower end of the telescopic cylinder 63 in the state without blisters. At this time, the window 631 is higher than the plane where the communication groove 611 is located, and the inside of the telescopic cylinder 63 is not communicated with the communication groove 611. When there is a blister at the upper end of the telescopic cylinder 63, the telescopic cylinder 63 moves downward under the action of the downward pressure. At this time, the height of the window 631 is equal to the height of the communication groove 611, and the inside of the telescopic cylinder 63 is communicated with the communication groove 611.

[0028] In actual operation, when a pressure sensing module detects pressure, it means that a blister has fallen from the bracket 6. At this time, the corresponding airflow valve 65 is opened to extract the gas in the airflow channel 612. Because the upper side of the tray 64 is covered by the blister, a relatively closed space is formed in the telescopic cylinder 63. When the gas in the telescopic cylinder 63 flows to the connecting groove 611 through the window 631 and is then extracted to the outside through the airflow channel 612, a negative pressure is formed inside the telescopic cylinder 63, thereby providing suction between the tray 64 and the blister, ensuring the stability of the transportation process. For the tray 64 not covered by the blister, the window 631 corresponding to the telescopic cylinder 63 is not connected to the connecting groove 611, so it is not affected. After the blister moves to the filling mechanism 2, the airflow valve 65 conveys the airflow in the reverse direction to release the negative pressure state inside the telescopic cylinder 63 to facilitate material removal.

[0029] In one embodiment, preferably, a test tube 66 is disposed in the telescopic tube 63 , a through slot 661 is provided in the middle of the test tube 66 , long slots 662 corresponding to the windows 631 are provided on the circumference of the test tube 66 , and a humidity sensing block 663 is provided in the through slot 661 .

[0030] Supplementary explanation based on the above structure is as follows: the upper side of the test cylinder 66 is lower than the lower side of the sealing plate 641 to avoid affecting the internal airflow, the through slot 661 is directly opposite to the center of the tray 64 and its diameter is not less than the diameter of the opening of the tray 64, the through slot 661 is used to receive the liquid dropped from the tray 64 and confirm it through the humidity sensor block 663, and the long slot 662 is used as an airflow passage. The test cylinder 66 is used to detect whether the blister has leakage.

[0031] In another embodiment, the humidity sensing block 663 is optionally replaced with a liquid level detection module and disposed on the surface of the through groove 661 to confirm liquid leakage and evaluate the leakage amount.

[0032] like Figure 3 As shown, a screw 67 is fixed at one end of the bracket 6, and the screw 67 is passed through the partition plate 5 to adjust the distance between the bracket 6 and the partition plate 5. The screw 67 is equipped with a fastener 68 to fix the screw 67.

[0033] like Figure 9 As shown, a plurality of tooth grooves 41 are provided on the lower side of the conveying chain 4, and two groups of transmission components 3 are provided, which are respectively located on the input side and the output side of the conveying chain 4. The transmission component 3 includes a driving tooth 31 and a driving motor 32. The driving end of the driving motor 32 is connected to the driving tooth 31. The connection method is not unique, and the driving tooth 31 cooperates with the tooth groove 41.

[0034] In actual operation, the driving motor 32 drives the driving teeth 31 to rotate, and the driving teeth 31 are engaged in the tooth grooves 41, thereby pushing the conveyor chain 4 to move.

[0035] likeFigure 10 As shown in the figure, the blanking mechanism 1 includes a mounting base 11. On one side of the mounting base 11 facing the conveying mechanism, a set of sliding shafts 12 are fixed. A set of wall plates 13 are slidably arranged on the sliding shafts 12. A second screw 14 is passed through the wall plates 13, and the wall plates 13 are in threaded cooperation with the second screw 14. One end of the second screw 14 is provided with a handle 15.

[0036] Furthermore, limiting frames 131 are arranged on the opposite sides of the wall plates 13 for limiting the moving range of the blisters. A rotating motor 111 and a pulley assembly 112 are fixed on the mounting base 11. The pulley assembly 112 includes a belt and several pulleys. Two of the pulleys are respectively arranged on the wall plates 13 and are connected with a rotating rod 16. Two baffle blades 17 are arranged at intervals on the rotating rod 16.

[0037] In one embodiment, preferably, the baffle blades 17 are in a shape of a straight line and are arranged at a 90-degree angle to each other. In actual operation, the handle 15 is used to adjust the distance between the wall plates 13. The rotating motor 111 drives the rotating rod 16 to rotate synchronously through the pulley assembly 112, so as to realize the rotation of the baffle blades 17. When the lower baffle blade 17 is arranged horizontally, it can be used to lift the blister. At this time, the upper baffle blade 17 is arranged vertically and does not restrict the blister. When the rotating rod 16 rotates, the lower baffle blade 17 is changed from horizontal to vertical, releasing the restriction on the blister, and the bottommost blister drops. At the same time, the upper baffle blade 17 is changed from vertical to horizontal to intercept the remaining blisters, realizing the dropping and blanking of a single blister sheet.

[0038] As Figure 11 shown, the filling mechanism 2 includes a first mounting plate 21 and a second mounting plate 22. A first rocker arm 23 and a second rocker arm 24 are respectively rotatably arranged on the first mounting plate 21 and the second mounting plate 22. One ends of the first rocker arm 23 and the second rocker arm 24 are respectively externally connected with motors. The other ends of the first rocker arm 23 and the second rocker arm 24 are respectively connected with a first connecting rod 25 and a second connecting rod 26. On one side of the first mounting plate 21 facing the second mounting plate 22, a slide rail 27 is arranged. A first pushing arm 28 and a second pushing arm 29 are sequentially slidably arranged on the slide rail 27. The first pushing arm 28 is connected with the first connecting rod 25, and the second pushing arm 29 is connected with the second connecting rod 26.

[0039] As Figure 12 shown, a lifting plate 281 is arranged at the end of the first pushing arm 28. A pushing block 291 is arranged at the end of the second pushing arm 29. A guide rod 292 is connected to the side of the pushing block 291 facing the lifting plate 281. The guide rod 292 is connected with a pushing block 293. The pushing block 293 is in sliding cooperation with the lifting plate 281.

[0040] In actual operation, the first rocker arm 23 and the second rocker arm 24 are driven by an external motor to swing. The first rocker arm 23 and the second rocker arm 24 pull the corresponding first push arm 28 and second push arm 29 to move on the slide rail 27 through the connected first connecting rod 25 and second connecting rod 26. The lifting plate 281 is used to lift the blister and move it to the opening side of the packaging box. Then, the pushing block 293 moves forward to push the blister on the lifting plate 281 into the corresponding packaging box.

[0041] The specific implementation method is as follows: Step 1: Blister sheet feeding. The feeding mechanism 1 drives the baffle 17 to rotate at a certain rate to achieve single-piece feeding of the blister sheet, and makes each blister sheet be accurately placed in the feeding area 51. Step 2: Feeding confirmation. The pressure sensing module preliminarily confirms the feeding state and damage state of the blister sheet according to the detected pressure value. Step 3: Classification. Classify and solve according to the feedback problems. Lock the source of incorrect placement of the blister sheet to the feeding mechanism 1, and judge whether adjustment is needed according to the subsequent feeding feedback. Mark the detected leaking blister sheets. Step 4: Filling. When the blister sheet moves to the filling mechanism 2, the filling mechanism 2 transfers it into the packaging box, and the marked defective blister sheets will be directly skipped.

[0042] Specifically, in Step 2, the method for identifying the feeding state of the blister sheet is as follows: Set the feeding position of the blister sheet to be directly opposite to the feeding area 51. Then, according to the length of the blister sheet, determine how many pressure sensing modules on a single bracket 6 should detect the pressure value. If no pressure value is detected on a certain bracket 6, there is no blister sheet in the corresponding feeding area 51 or the feeding is incorrect, and the blister sheet falls into the external area; If the number of detected pressure values on a certain bracket 6 is less / more than the ideal value but still within the allowable range, the blister sheet is partially skewed during feeding, but the skewed state has no obvious impact on subsequent transfer and can be ignored; If the number of detected pressure values on a certain bracket 6 shows obvious abnormalities, such as only a single signal is detected, the blister feeding is incorrect and the blister is not fully placed on the bracket 6. If an abnormally large number of signal values are detected, the feeding amount of the blister is more than the set value.

[0043] Furthermore, count the number of obviously incorrect feedings, and set whether the number of mistakes occurring within a unit time is greater than the comparison value. The comparison value is set manually and is generally set to 1 time. If the number of mistakes is greater than the comparison value, there is a problem with the feeding process and the feeding mechanism 1 needs to be adjusted, such as checking whether the components are loose or the limit range is too large and there is no restriction on the blister; If the number of mistakes is less than or equal to the comparison value, the feeding mistake occurs accidentally and no adjustment is required.

[0044] In step two, the method for confirming the damaged state of the blister sheet is as follows: When the blister sheet is damaged during transportation, the internal nursing liquid overflows, and the corresponding tray 64 can receive part of the liquid. If the damage to the blister sheet is minor, the humidity sensing block 663 only detects a humidity value that does not increase significantly compared to the initial signal. At this time, the air flow inside the telescopic cylinder 63 can be further extracted to increase the internal negative pressure to determine whether there is still liquid flowing in. If the change in the humidity value is still not obvious, it is marked and requires manual confirmation, and this blister will not be transferred for packaging; if the change in the humidity value is obvious, it is marked as a defective product.

[0045] Furthermore, count the number of damaged blister sheets, set a comparison coefficient. If the number of damaged blister sheets in a single batch is greater than the comparison coefficient, the quality of the blister sheets in this batch does not meet the standard and needs to be destroyed as a whole; if the number of damaged blister sheets is less than or equal to the comparison coefficient, the quality of the blister sheets in this batch is qualified and can enter the market.

[0046] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0047] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic contact lens packaging machine, comprising a conveying mechanism, a feeding mechanism (1) and a filling mechanism (2), characterized in that: The unloading mechanism (1) is arranged at the inlet side of the conveying mechanism and is used to place blisters; the filling mechanism (2) is arranged at the outlet side of the conveying mechanism and is externally connected to a packaging box conveying line and is used to transfer the blisters on the conveying mechanism into packaging boxes; The conveying mechanism comprises a transmission assembly (3) and a conveying chain (4). The transmission assembly (3) cooperates with the conveying chain (4) to drive the conveying chain (4) to move. Partition plates (5) are arranged at intervals on the conveying chain (4). Every two of the partition plates (5) form a group. A delivery area (51) is provided between each group of partition plates (5). A bracket (6) is fixed on the opposite side of each group of partition plates (5). A plurality of circular grooves (61) are arranged at intervals on the bracket (6). A pressure sensing module is laid on the bottom of the circular groove (61) and is connected to a spring (62). The other end of the spring (62) is connected to a telescopic cylinder (63). The telescopic cylinder (63) is slidably matched with the circular groove (61). A tray (64) is fixed on the upper side of the telescopic cylinder (63).

2. The automatic contact lens packaging machine according to claim 1, characterized in that: The telescopic cylinder (63) is configured as a hollow structure with an opening on the upper side. A plurality of windows (631) are provided on the circumference of the lower end of the telescopic cylinder (63). The tray (64) has a hole in the middle and is in communication with the interior of the telescopic cylinder (63). A sealing plate (641) adapted to the opening of the telescopic cylinder (63) is fixed to the lower end of the tray (64).

3. The automatic contact lens packaging machine according to claim 2, characterized in that: Each of the circular grooves (61) is provided with a connecting groove (611), each of the connecting grooves (611) is connected to an air flow channel (612), the air flow channel (612) is externally connected to an air flow valve (65), and the air flow valve (65) is externally connected to an air pump for inputting or extracting air flow into or from the air flow channel (612); The height at which the communication groove (611) is arranged is located at the lower end of the telescopic cylinder (63) in a state without a bubble cap. At this time, the window (631) is higher than the plane where the communication groove (611) is located, and the interior of the telescopic cylinder (63) is not in communication with the communication groove (611). When a bubble cap is present at the upper end of the telescopic cylinder (63), the telescopic cylinder (63) moves downward under the action of downward pressure. At this time, the height of the window (631) is the same as that of the communication groove (611), and the interior of the telescopic cylinder (63) is in communication with the communication groove (611).

4. The automatic contact lens packaging machine according to claim 3, characterized in that: A testing cylinder (66) is arranged in the telescopic cylinder (63); a through slot (661) is provided in the middle of the testing cylinder (66); long slots (662) corresponding to the windows (631) are provided on the circumference of the testing cylinder (66); a humidity sensing block (663) is arranged in the through slot (661); The upper side of the test cylinder (66) is lower than the lower side of the sealing plate (641) to avoid affecting the internal airflow. The through groove (661) is directly opposite the center of the tray (64) and has a diameter no less than the diameter of the hole of the tray (64). The through groove (661) is used to receive liquid dropped from the tray (64) and confirm it through the humidity sensing block (663). The long groove (662) is used as an airflow passage. The test cylinder (66) is used to detect whether the blister is leaking.

5. The automatic contact lens packaging machine according to claim 4, characterized in that: A screw rod (67) is fixed to one end of the bracket (6), and the screw rod (67) is inserted into the partition plate (5) and is used to adjust the distance between the bracket (6) and the partition plate (5). The screw rod (67) is provided with a fastener (68) for fixing the screw rod (67).

6. The automatic contact lens packaging machine according to claim 5, characterized in that: A plurality of tooth grooves (41) are provided on the lower side of the conveyor chain (4), and the transmission assembly (3) is provided with two groups, which are respectively located on the input side and the output side of the conveyor chain (4). The transmission assembly (3) comprises a driving tooth (31) and a driving motor (32), and the driving end of the driving motor (32) is connected to the driving tooth (31), and the driving tooth (31) cooperates with the tooth groove (41).

7. The automatic contact lens packaging machine according to claim 6, characterized in that: The unloading mechanism (1) comprises a mounting seat (11), a group of sliding shafts (12) are fixed on the side of the mounting seat (11) facing the conveying mechanism, a group of wall plates (13) are slidably arranged on the sliding shafts (12), a second screw rod (14) is passed through the wall plates (13), the wall plates (13) are threadedly matched with the second screw rod (14), and a handle (15) is arranged at one end of the second screw rod (14).

8. The automatic contact lens packaging machine according to claim 7, characterized in that: A limiting frame (131) is arranged on the opposite side of the wall plate (13) for limiting the movement range of the bubble cap. A rotating motor (111) and a pulley assembly (112) are fixed on the mounting seat (11). The pulley assembly (112) comprises a belt and a plurality of rotating wheels, wherein two of the rotating wheels are respectively arranged on the wall plate (13) and connected to a rotating rod (16). Two retaining blades (17) are arranged on the rotating rod (16) at intervals.

9. The automatic contact lens packaging machine according to claim 8, characterized in that: The loading mechanism (2) comprises a mounting plate 1 (21) and a mounting plate 2 (22), wherein the mounting plate 1 (21) and the mounting plate 2 (22) are respectively rotatably provided with a rocker arm 1 (23) and a rocker arm 2 (24), wherein one end of the rocker arm 1 (23) and the rocker arm 2 (24) are respectively externally connected to a motor, and the other ends of the rocker arm 1 (23) and the rocker arm 2 (24) are respectively connected to a connecting rod 1 (25) and a connecting rod 2 (26), wherein a slide rail (27) is provided on a side of the mounting plate 1 (21) facing the mounting plate 2 (22), and a push arm 1 (28) and a push arm 2 (29) are sequentially slidably provided on the slide rail (27), wherein the push arm 1 (28) is connected to the connecting rod 1 (25), and the push arm 2 (29) is connected to the connecting rod 2 (26).

10. The automatic contact lens packaging machine according to claim 9, characterized in that: A lifting plate (281) is disposed at the end of the first push arm (28), and a push block (291) is disposed at the end of the second push arm (29). The push block (291) is connected to a guide rod (292) on the side facing the lifting plate (281), and the guide rod (292) is connected to a material pushing block (293). The material pushing block (293) is slidably matched with the lifting plate (281).

Images