A cooling and molding device for producing polyvinyl alcohol hydrogel eye patch

Abstract

The present invention relates to the field of refrigerators, and in particular to a cooling and molding device for producing polyvinyl alcohol hydrogel eye patches, comprising a refrigerator and a door mounted on the refrigerator, wherein the front end surface of the door is provided with a receiving cavity, a carrier is rotatably mounted inside the receiving cavity, the outer surface of the carrier is closely attached to the inner surface of the receiving cavity, a fixing member is provided between the carrier and the door, the front and rear ends of the carrier are connected to a material rod, the outer surface of the material rod is linearly arrayed with a plurality of connecting frames, the lower end of the connecting frame is rotatably mounted with a turning shaft, the upper end of the connecting frame is rotatably mounted with a top cover frame, the end of the top cover frame is connected to an eye patch mold cover, and the eye patch mold cover is evenly distributed and has a plurality of air holes. The present invention improves the convenience of cooling and molding and reduces the energy consumption of the refrigerator.

Description

Technical Field

[0001] The invention relates to the field of refrigerators, and in particular to a cooling and molding device for producing polyvinyl alcohol hydrogel eye patches. Background Art

[0002] Polyvinyl alcohol hydrogel eye patches are a medical dressing designed specifically for eye care, using polyvinyl alcohol hydrogel as its core ingredient. Their unique properties and wide applicability make them a vital tool for modern eye health management. During production, these patches often require the use of freezers for cooling and molding.

[0003] However, during the actual cooling and molding process, in order to reduce the formation of bubbles in the eye patch, it is usually necessary to tilt the mold at 15 degrees and place it in a refrigerator to speed up the discharge of bubbles in the raw material. The mold also needs to be covered with a mold cover so that the liquid level of the raw material inside will not tilt after the mold is tilted. The above operations usually require the staff to adjust and cover each mold one by one. The process is quite cumbersome, making the cooling and molding process inconvenient. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a cooling and molding device for the production of polyvinyl alcohol hydrogel eye patches.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a cooling and molding device for the production of polyvinyl alcohol hydrogel eye patches, comprising a refrigerator and a cabinet door installed on the refrigerator, the front end surface of the cabinet door being provided with a accommodating cavity, a carrier being rotatably installed inside the accommodating cavity, the outer surface of the carrier being tightly attached to the inner surface of the accommodating cavity, a fixing part being provided between the carrier and the cabinet door, the front and rear ends of the carrier being connected to a material rod, a plurality of connecting frames being linearly arrayed on the outer surface of the material rod, a turning shaft being rotatably installed on the lower end of the connecting frame, a top cover frame being rotatably installed on the upper end of the connecting frame, an eye patch mold cover being connected to the end thereof, a plurality of air holes being evenly distributed and formed on the eye patch mold cover, an eye patch mold seat being installed on the outer surface of the turning shaft, the eye patch mold cover being slidably connected to the eye patch mold seat, a shifting rod being slidably installed on the side of the material rod, a protrusion being inlaid at the end of the turning shaft, a turning frame being rotatably installed at the end of the protrusion, and the turning frame being connected to the shifting rod.

[0006] Preferably, a guide sleeve is slidably installed on the outer surface of the shift rod, and the end of the guide sleeve is fixed to the material rod. A positioning cover is fitted on the upper end of the shift rod, and the end of the positioning cover is fixed to the material rod. A locking stud is passed through the side of the guide sleeve at the lower end and tightened, a locking hole is opened on the side of the shift rod near the lower edge, and a limiting plate extends from the front end of the shift rod near the lower edge.

[0007] Preferably, a connecting ear extends from the middle of the rear end of the eye protection patch mold seat, and the connecting ear is embedded in the outer surface of the flip shaft. A counterweight ball is fixedly installed in the middle of the front end of the eye protection patch mold seat, and a No. 1 connecting seat extends from the middle of the upper end of the eye protection patch mold cover, and the end of the top cover frame is rotatably installed inside the No. 1 connecting seat.

[0008] Preferably, a No. 2 connecting seat is rotatably mounted on the end of the tipping frame, the end of the No. 2 connecting seat is fixed to the shift rod, and a fixing sleeve is extended from the rear end of the connecting frame, and the fixing sleeve is embedded in the outer surface of the material rod.

[0009] Preferably, guide pillars are fixedly installed on both sides of the eye protection patch mold cover, and guide rings are slidably installed on the outer surface of the guide pillars. The guide rings are fixed to the eye protection patch mold base, and the lower end of the guide pillars is inlaid with a positioning cap, and the guide ring is fitted to the upper end of the positioning cap.

[0010] Preferably, two brackets are symmetrically extended from the middle of the front and rear ends of the carrier, and slots are provided on the opposite surfaces of the two brackets. The upper and lower ends of the material rod are respectively engaged in the slots on the two brackets, and the lower end of the lower bracket is penetrated by a threaded sleeve, and a threaded column is screwed inside the threaded sleeve, and the two ends of the threaded column extend from the upper and lower ends of the threaded sleeve respectively, the upper end of the threaded column is inserted into the lower end of the material rod, and the lower end of the threaded column is coaxially inlaid with a handwheel.

[0011] Preferably, the fixing part includes a fixing shell fixedly installed at the front end edge of the cabinet door, and lugs extend from one edge of the front end and the other edge of the rear end of the carrier. A fixing pin is coaxially arranged inside the fixing shell, and both ends of the fixing pin pass through both sides of the fixing shell. The fixing pin is slidably fitted with the fixing shell, and one end of the fixing pin is inserted into the inside of the lug.

[0012] Preferably, a spring cap is coaxially embedded on the outer surface of the fixing pin, and the spring cap is slidably installed inside the fixing shell. A spring body is wrapped around the outer side of the fixing pin, one end of the spring body is fixed to the spring cap, and the other end of the spring body is fixed to the inner side of the fixing shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By pushing the lever downward, the flip frame can be driven to push the cam, and then the flip shaft can be driven to drive multiple eye protection patch mold seats to flip. During the flipping process, the top cover frame will move to push the eye protection patch mold cover. At this time, the guide column slides in the guide ring to guide the eye protection patch mold cover so that the eye protection patch mold cover can be gradually covered on the eye protection patch mold seat. When the locking hole on the lever and the locking stud are aligned, the locking stud is screwed into the locking hole to lock the lever, and then the flipped multiple eye protection patch mold seats are locked, so that the eye protection patch mold seat remains tilted at fifteen degrees. The process can tilt multiple eye protection patch mold seats at the same time by fifteen degrees, and simultaneously cover multiple eye protection patch mold covers on multiple eye protection patch mold seats. There is no need for staff to adjust each mold one by one and cover the mold cover, which effectively improves the convenience of cooling and molding.

[0015] 2. By pulling the fixing pin, the fixing pin pushed by the spring body can be driven out of the lug, and then the carrier is rotated 180 degrees to take out the eye patch cooled and formed in the freezer, and the eye patch to be cooled is placed in the freezer for cooling and forming. At this time, the fixing pin is pushed by the spring body and inserted into another lug to fix the rotated carrier. The process greatly shortens the replacement time, avoids the large amount of cold air in the freezer from being discharged, and effectively reduces the energy consumption of the freezer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention;

[0017] Figure 2 This is a schematic diagram of the carrier portion of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention;

[0018] Figure 3 This is a schematic diagram of the counterweight ball of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention;

[0019] Figure 4 This is a schematic diagram of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention from another perspective of the counterweight ball;

[0020] Figure 5 This is an internal view of a fixed shell of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention;

[0021] Figure 6 A cooling molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention Figure 1 A magnified view of middle A;

[0022] Figure 7 This is a schematic diagram of the support of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention;

[0023] Figure 8 This is a schematic diagram of an eye patch mold base of a cooling molding device for producing a polyvinyl alcohol hydrogel eye patch of the present invention.

[0024] In the figure: 1. Freezer; 2. Cabinet door; 3. Accommodating cavity; 4. Carrier; 5. Fixed shell; 6. Lug; 7. Support; 8. Eye protection patch mold cover; 9. Counterweight ball; 10. No. 1 connecting seat; 11. Top cover frame; 12. Connecting frame; 13. Material rod; 14. Fixed sleeve; 15. Guide column; 16. Guide ring; 17. Positioning cap; 18. Eye protection patch mold seat; 19. No. 2 connecting seat; 20. Push rod; 21. Flip frame; 22. Lug; 23. Flip shaft; 24. Guide sleeve; 25. Positioning cover; 26. Slot; 27. Threaded column; 28. Locking stud; 29. Locking hole; 30. Handwheel; 31. Threaded sleeve; 32. Spring cap; 33. Fixing pin; 34. Spring body; 35. Connecting ear; 36. Limiting piece. DETAILED DESCRIPTION

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0026] like Figures 1-8The cooling molding device for producing polyvinyl alcohol hydrogel eye patch shown in the figure comprises a refrigerator 1 and a cabinet door 2 mounted on the refrigerator 1. The cabinet door 2 can be opened to facilitate cleaning inside the refrigerator 1. A receiving cavity 3 is formed through the front face of the cabinet door 2. A carrier 4 is rotatably mounted inside the receiving cavity 3. The outer surface of the carrier 4 is tightly attached to the inner surface of the receiving cavity 3. A rubber strip can be installed on the inner surface of the receiving cavity 3 to enhance the seal between the carrier 4 and the carrier 4 to prevent cold air leakage. A fixing piece is provided between the carrier 4 and the cabinet door 2. The front and rear ends of the frame 4 are connected to the material rod 13, and the outer surface of the material rod 13 is linearly arrayed with multiple connecting frames 12. The material rod 13 plays the role of supporting the connecting frame 12. The lower end of the connecting frame 12 is rotatably installed with a turning shaft 23, and the upper end of the connecting frame 12 is rotatably installed with a top cover frame 11. The end of the top cover frame 11 is connected to the eye protection patch mold cover 8. The top cover frame 11 can push the eye protection patch mold cover 8 so that the eye protection patch mold cover 8 is inserted into the interior of the eye protection patch mold seat 18, that is, it covers the eye protection patch mold seat 18. In order to restrict the raw materials in the eye protection patch mold seat 18, after the eye protection patch mold seat 18 is tilted, the liquid level of the raw materials inside it will not tilt, that is, to ensure that the liquid level is always parallel to the inner bottom surface of the eye protection patch mold seat 18, the eye protection patch mold cover 8 is evenly distributed and penetrated with a plurality of air holes, which can allow the bubbles discharged from the raw materials to overflow from the air holes. At the same time, the air holes are of a smaller diameter so that the raw materials will not be discharged from the air holes. Because the above-mentioned exhaust means is a prior art and has been widely used, it is not described in detail here and is not shown in the figure. The outer surface of the flip shaft 23 is installed with the eye protection patch mold seat 18, and the eye protection patch mold cover 8 is slidably connected to the eye protection patch mold seat 18. The flip shaft 23 serves to flip the eye protection patch mold seat 18. The side of the material rod 13 is slidably installed with a shift rod 20, and the end of the flip shaft 23 is inlaid with a protrusion 22. The end of the protrusion 22 is rotatably installed with a flip frame 21. The shift rod 20 can drive the flip frame 21 to move and push the protrusion 22, thereby driving the flip shaft 23 to drive multiple eye protection patch mold seats 18 to flip, and the flip frame 21 is connected to the shift rod 20.

[0027] A guide sleeve 24 is slidably installed on the outer surface of the shift rod 20, and the end of the guide sleeve 24 is fixed to the material rod 13. The guide sleeve 24 plays a role in guiding the shift rod 20. A positioning cover 25 is fitted on the upper end of the shift rod 20, and the end of the positioning cover 25 is fixed to the material rod 13. The positioning cover 25 can position the upward movement height of the shift rod 20 so that multiple eye protection patch seats 18 can be synchronously reset to a horizontal state. A locking stud 28 is tightened through the side of the guide sleeve 24 at the lower end, and a locking hole 29 is provided on the side of the shift rod 20 near the lower edge. A limiting plate 36 is extended from the front end of the shift rod 20 near the lower edge. The limiting plate 36 can be pressed on the guide sleeve 24 at the lower end to position the downward movement height of the shift rod 20 so that the locking hole 29 can be aligned with the locking stud 28.

[0028] A connecting ear 35 extends from the middle of the rear end of the eye protection patch mold seat 18, and the connecting ear 35 is embedded in the outer surface of the flip shaft 23. The connecting ear 35 plays the role of fixing the eye protection patch mold seat 18 and the flip shaft 23 together. A counterweight ball 9 is fixedly installed at the middle of the front end of the eye protection patch mold seat 18. The locking stud 28 is unscrewed from the locking hole 29 to loosen the lever 20. At this time, multiple eye protection patch mold seats 18 are synchronously flipped down by themselves under the action of the counterweight ball 9. At the same time, the eye protection patch mold cover 8 is gradually separated from the eye protection patch mold seat 18. When the top of the lever 20 hits the positioning When the cover 25 is on, the eye protection patch mold seat 18 will be automatically locked, so that the multiple eye protection patch mold seats 18 will be synchronously reset to a horizontal state, and at the same time, the multiple eye protection patch mold covers 8 will be opened from the multiple eye protection patch mold seats 18, so that the eye protection patches cooled and formed in the eye protection patch mold seat 18 can be taken out or the eye protection patch raw materials to be cooled and formed can be added. A No. 1 connecting seat 10 extends from the middle part of the upper end of the eye protection patch mold cover 8, and the end of the top cover frame 11 is rotatably installed inside the No. 1 connecting seat 10, and the No. 1 connecting seat 10 serves to facilitate the connection with the top cover frame 11.

[0029] The end of the flip frame 21 is rotatably mounted with a No. 2 connecting seat 19, and the end of the No. 2 connecting seat 19 is fixed to the shift rod 20. The No. 2 connecting seat 19 serves to facilitate the connection of the flip frame 21. A fixing sleeve 14 is extended from the rear end of the connecting frame 12. The fixing sleeve 14 is embedded in the outer surface of the material rod 13, and the fixing sleeve 14 serves to fix the connecting frame 12.

[0030] Guide posts 15 are fixedly installed on both sides of the eye protection patch mold cover 8, and guide rings 16 are slidably installed on the outer surface of the guide posts 15. The guide rings 16 are fixed to the eye protection patch mold base 18. The guide posts 15 and the guide rings 16 can guide the eye protection patch mold cover 8 so that the eye protection patch mold cover 8 can be accurately covered in the eye protection patch mold base 18. The lower end of the guide post 15 is inlaid with a positioning cap 17, and the guide ring 16 is fitted to the upper end of the positioning cap 17. The positioning cap 17 prevents the guide ring 16 and the guide post 15 from separating.

[0031] Two brackets 7 are symmetrically extended in the middle of the front and rear ends of the carrier 4. The brackets 7 serve to support the material rod 13. The opposite surfaces of the two brackets 7 are provided with slots 26. The slots 26 serve to position the material rod 13. The upper and lower ends of the material rod 13 are respectively engaged in the slots 26 on the two brackets 7. The lower end of the lower bracket 7 is penetrated by a threaded sleeve 31, and a threaded column 27 is screwed inside the threaded sleeve 31. The threaded sleeve 31 cooperates with the threaded column 27. The two ends of the threaded column 27 extend from the upper and lower ends of the threaded sleeve 31 respectively. The upper end of the threaded column 27 is inserted into the lower end of the material rod 13, which can fix the material rod 13. The lower end of the threaded column 27 is coaxially inlaid with a handwheel 30. The handwheel 30 serves to facilitate the rotation of the threaded column 27.

[0032] The fixing part includes a fixing shell 5 fixedly installed at the front edge of the cabinet door 2, and a lug 6 is extended at one edge of the front end and the other edge of the rear end of the carrier 4. A fixing pin 33 is coaxially arranged inside the fixing shell 5. The fixing shell 5 plays the role of supporting the fixing pin 33. The two ends of the fixing pin 33 pass through the two sides of the fixing shell 5. The fixing pin 33 and the fixing shell 5 are slidably matched. One end of the fixing pin 33 is inserted into the inside of the lug 6, which can fix the carrier 4. Pull the fixing pin 33. The fixing pin 33 pushed by the spring body 34 can be driven to disengage from the lug 6, and then the carrier 4 can be rotated 180 degrees to take out the eye patch cooled and formed in the refrigerator 1, and the eye patch to be cooled can be placed in the refrigerator 1 for cooling and forming. At this time, the fixing pin 33 is inserted into the other lug 6 under the push of the spring body 34 to fix the rotated carrier 4. The process greatly shortens the replacement time, avoids the large amount of cold air in the refrigerator 1 from being discharged, and effectively reduces the energy consumption of the refrigerator 1.

[0033] The outer surface of the fixing pin 33 is coaxially inlaid with a spring cap 32, and the spring cap 32 is slidably installed inside the fixed shell 5. The outer side of the fixing pin 33 is wrapped with a spring body 34, and the spring cap 32 is pushed by the spring body 34. One end of the spring body 34 is fixed to the spring cap 32, and the other end of the spring body 34 is fixed to the inner side of the fixed shell 5. The spring body 34 can push the fixing pin 33 to move, so that the fixing pin 33 is inserted into the inside of the lug 6.

[0034] During cooling and forming, the material rod 13 is placed between the two brackets 7. At this time, the two ends of the material rod 13 are engaged in the card slot 26. Then the threaded column 27 is rotated to make the threaded column 27 engage with the lower end of the material rod 13 to fix the material rod 13 to the front end of the carrier 4. Then the lever 20 is pushed downward to drive the flip frame 21 to move and push the protrusion 22, thereby driving the flip shaft 23 to drive multiple eye protection patch mold seats 18 to flip. During the flipping process, the top cover frame 11 moves to push the eye protection patch mold cover 8. At this time, the guide column 15 slides in the guide ring 16 to guide the eye protection patch mold cover 8 so that the eye protection patch mold cover 8 can gradually cover the eye protection patch. On the mold base 18, when the locking hole 29 on the lever 20 is aligned with the locking stud 28, the locking stud 28 is screwed into the locking hole 29 to lock the lever 20, thereby locking the flipped multiple eye protection mold bases 18, so that the eye protection mold base 18 remains in a state of being tilted at 15 degrees, and the eye protection mold cover 8 remains tightly covered on the eye protection mold base 18, and then the fixed frame pin 33 is pulled to drive the fixed frame pin 33 pushed by the spring body 34 to disengage from the lug 6, and then the carrier 4 is rotated 180 degrees so that the multiple eye protection mold bases 18 at the front end of the carrier 4 can be rotated into the interior of the refrigerator 1, so that the eye protection mold bases 18 in the eye protection mold base 18 can be locked. The eye patch is cooled and formed. At this time, the rear end of the carrier 4 faces forward, and then another material rod 13 is fixed to the rear end of the carrier 4, and the eye patch mold base 18 is kept tilted at 15 degrees. After the hydrogel eye patch at the front end of the carrier 4 is cooled and formed, the fixed frame pin 33 is pulled to drive the fixed frame pin 33 pushed by the spring body 34 to disengage from the lug 6. Then the carrier 4 is rotated 180 degrees to take out the eye patch that has been cooled and formed in the refrigerator 1, and the eye patch to be cooled, that is, the eye patch at the rear end of the carrier 4, is placed in the refrigerator 1 for cooling. At this time, the fixed frame pin 33 is inserted into another lug 6 under the push of the spring body 34 to rotate the carrier 4 after rotation. After fixing, the locking stud 28 can be unscrewed from the locking hole 29 to loosen the lever 20. At this time, multiple eye protection patch mold seats 18 will turn down synchronously under the action of the counterweight ball 9. At the same time, the eye protection patch mold cover 8 will gradually separate from the eye protection patch mold seat 18. When the top of the lever 20 is on the positioning cover 25, the eye protection patch mold seat 18 will be automatically locked, so that multiple eye protection patch mold seats 18 will be synchronously reset to a horizontal state. Then the threaded column 27 can be unscrewed from the lower end of the material rod 13, so that the material rod 13 can be removed from the front end of the carrier 4, and the next material rod 13 can be fixed to the front end of the carrier 4 to wait for cooling, and the cooling and molding can be carried out in this cycle.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling and molding device for producing polyvinyl alcohol hydrogel eye patches, comprising a refrigerator (1) and a door (2) mounted on the refrigerator (1), characterized in that: The front end surface of the cabinet door (2) is provided with a receiving cavity (3) through which a carrier (4) is rotatably mounted inside the receiving cavity (3). The outer surface of the carrier (4) is in close contact with the inner surface of the receiving cavity (3). A fixing member is provided between the carrier (4) and the cabinet door (2). The front and rear ends of the carrier (4) are both connected to a material rod (13). A plurality of connecting frames (12) are linearly mounted on the outer surface of the material rod (13). A turning shaft (23) is rotatably mounted on the lower end of the connecting frame (12). A top cover is rotatably mounted on the upper end of the connecting frame (12). The top cover frame (11) is connected to an eye protection patch mold cover (8) at the end thereof, and a plurality of air holes are evenly distributed and penetrated on the eye protection patch mold cover (8), an eye protection patch mold base (18) is installed on the outer surface of the flip shaft (23), the eye protection patch mold cover (8) is slidably connected to the eye protection patch mold base (18), a shifting rod (20) is slidably installed on the side of the material rod (13), a convex frame (22) is embedded at the end of the flip shaft (23), a flip frame (21) is rotatably installed at the end of the convex frame (22), and the flip frame (21) is connected to the shifting rod (20).

2. The cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to claim 1, characterized in that: A guide sleeve (24) is slidably mounted on the outer surface of the shift rod (20), and the end of the guide sleeve (24) is fixed to the material rod (13). A positioning cover (25) is fitted on the upper end of the shift rod (20), and the end of the positioning cover (25) is fixed to the material rod (13). A locking stud (28) is screwed through the side surface of the guide sleeve (24) at the lower end. A locking hole (29) is provided on the side surface of the shift rod (20) near the lower edge, and a limiting plate (36) extends from the front end of the shift rod (20) near the lower edge.

3. The cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to claim 1, characterized in that: A connecting ear (35) extends from the middle of the rear end of the eye protection patch mold base (18), and the connecting ear (35) is embedded in the outer surface of the turning shaft (23). A counterweight ball (9) is fixedly installed at the middle of the front end of the eye protection patch mold base (18). A No. 1 connecting seat (10) extends from the middle of the upper end of the eye protection patch mold cover (8), and the end of the top cover frame (11) is rotatably installed inside the No. 1 connecting seat (10).

4. The cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to claim 1, characterized in that: A second connecting seat (19) is rotatably mounted on the end of the tipping frame (21), and the end of the second connecting seat (19) is fixed to the shifting rod (20). A fixing sleeve (14) extends from the rear end of the connecting frame (12), and the fixing sleeve (14) is embedded in the outer surface of the material rod (13).

5. The cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to claim 1, characterized in that: Guide pillars (15) are fixedly mounted on both sides of the eye protection patch mold cover (8), and guide rings (16) are slidably mounted on the outer surfaces of the guide pillars (15). The guide rings (16) are fixed to the eye protection patch mold base (18), and the lower ends of the guide pillars (15) are inlaid with positioning caps (17), and the guide rings (16) are fitted to the upper ends of the positioning caps (17).

6. The cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to claim 1, characterized in that: Two brackets (7) are symmetrically extended from the middle of the front and rear ends of the carrier (4), and the opposite surfaces of the two brackets (7) are provided with a slot (26). The upper and lower ends of the material rod (13) are respectively engaged in the slots (26) on the two brackets (7). The lower end of the lower bracket (7) is penetrated by a threaded sleeve (31) and is inlaid with a threaded column (27). The interior of the threaded sleeve (31) is screwed with a threaded column (27). The two ends of the threaded column (27) extend from the upper and lower ends of the threaded sleeve (31) respectively. The upper end of the threaded column (27) is inserted into the lower end of the material rod (13), and the lower end of the threaded column (27) is coaxially inlaid with a hand wheel (30).

7. The cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to claim 1, characterized in that: The fixing member comprises a fixing shell (5) fixedly mounted at the front edge of the cabinet door (2); lugs (6) are extended from one edge of the front end and the other edge of the rear end of the carrier (4); a fixing pin (33) is coaxially arranged inside the fixing shell (5); both ends of the fixing pin (33) extend from both sides of the fixing shell (5); the fixing pin (33) and the fixing shell (5) are slidably matched, and one end of the fixing pin (33) is inserted into the inside of the lug (6).

8. The cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to claim 7, characterized in that: The outer surface of the fixing pin (33) is coaxially inlaid with a spring cap (32), and the spring cap (32) is slidably installed inside the fixing shell (5). The outer side of the fixing pin (33) is wound with a spring body (34), one end of the spring body (34) is fixed to the spring cap (32), and the other end of the spring body (34) is fixed to the inner side surface of the fixing shell (5).

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