Cooling forming device for producing polyvinyl alcohol hydrogel eye protection patch

Abstract

The invention relates to the field of refrigerators, in particular to a cooling forming device for production of polyvinyl alcohol hydrogel eye protection pastes.The cooling forming device comprises the refrigerator and a cabinet door installed on the refrigerator, a containing cavity is formed in the front end face of the cabinet door in a penetrating mode, a carrying frame is rotatably installed in the containing cavity, and the outer surface of the carrying frame is tightly attached to the inner surface of the containing cavity; a fixing piece is arranged between the carrying frame and the cabinet door, material rods are connected to the front end and the rear end of the carrying frame, a plurality of connecting frames are installed on the outer surfaces of the material rods in a linear array mode, turning shafts are rotatably installed at the lower ends of the connecting frames in a penetrating mode, and top cover frames are rotatably installed at the upper ends of the connecting frames; the end portion of the top cover frame is connected with an eye-protection pasting mold cover, and a plurality of air holes are evenly distributed in the eye-protection pasting mold cover in a penetrating mode. The cooling forming convenience is improved, and the energy consumption of the refrigerator is reduced.

Description

Technical Field

[0001] The present invention relates to the field of freezers, and particularly to a cooling and forming device for producing polyvinyl alcohol hydrogel eye patches. Background Art

[0002] The polyvinyl alcohol hydrogel eye patch is a medical dressing with polyvinyl alcohol hydrogel as the core component and is designed specifically for eye care. Its unique properties and wide applicability make it an important tool for modern eye health management. During the production process of the polyvinyl alcohol hydrogel eye patch, a freezer is often used for cooling and forming.

[0003] However, during actual cooling and forming, in order to reduce the formation of air bubbles in the eye patch, the mold usually needs to be placed in the freezer at an inclination of 15 degrees to accelerate the discharge of air bubbles in the raw material, and a mold cover needs to be covered on the mold so that after the mold is inclined, the liquid level of the raw material inside it will not be inclined. The above operations are mostly adjusted and covered by the staff for each mold one by one, and the process is quite cumbersome, resulting in inconvenient cooling and forming. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the background art, and to propose a cooling and forming device for producing polyvinyl alcohol hydrogel eye patches.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a cooling and forming device for producing polyvinyl alcohol hydrogel eye patches, including a freezer and a cabinet door installed on the freezer. A receiving cavity is penetrated and opened on the front end face of the cabinet door. A carrier is rotatably installed inside the receiving cavity. The outer surface of the carrier is in close contact with the inner surface of the receiving cavity. A fixing member is provided between the carrier and the cabinet door. Both the front and rear ends of the carrier are connected with material rods. A plurality of connecting frames are linearly arrayed on the outer surface of the material rod. The lower end of the connecting frame is penetrated and rotatably installed with a turning shaft. The upper end of the connecting frame is rotatably installed with a top cover frame. The end of the top cover frame is connected with an eye patch mold cover. A plurality of air holes are evenly distributed and penetrated on the eye patch mold cover. An eye patch mold base is installed on the outer surface of the turning shaft. The eye patch mold cover is slidably connected with the eye patch mold base. A shifting rod is slidably installed on the side of the material rod. A convex frame is inlaid at the end of the turning shaft. A turning frame is rotatably installed at the end of the convex frame. The turning frame is connected with the shifting rod.

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

[0007] Preferably, a connecting ear extends from the middle of the rear end of the eye protection patch mold base, the connecting ear is embedded in the outer surface of the turning shaft, a counterweight ball is fixedly installed in the middle of the front end of the eye protection patch mold base, a first 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 first connecting seat.

[0008] Preferably, a second connecting seat is rotatably installed at the end of the turning frame, the end of the second connecting seat is fixed to the lever, a fixing sleeve extends 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 columns are fixedly installed on both sides of the eye protection patch mold cover, a guide ring is slidably installed on the outer surface of the guide column, the guide ring is fixed to the eye protection patch mold base, a positioning cap is embedded at the lower end of the guide column, and the guide ring fits against the upper end of the positioning cap.

[0010] Preferably, two supporting seats symmetrically extend from the middle of the front and rear ends of the carrier frame, clamping grooves are formed on the opposite surfaces of the two supporting seats, the upper and lower ends of the material rod are respectively clamped in the clamping grooves on the two supporting seats, a threaded sleeve is embedded through the lower end of the lower supporting seat, a threaded column is screwed inside the threaded sleeve, both ends of the threaded column extend out from the upper and lower ends of the threaded sleeve, the upper end of the threaded column is inserted into the lower end of the material rod, and a hand wheel is coaxially embedded at the lower end of the threaded column.

[0011] Preferably, the fixing member includes a fixing shell fixedly installed at the front edge of the cabinet door, lugs extend from one side edge of the front end and the other side edge of the rear end of the carrier frame, a fixing frame pin is coaxially arranged inside the fixing shell, both ends of the fixing frame pin penetrate out from both sides of the fixing shell, the fixing frame pin is slidably matched with the fixing shell, and one end of the fixing frame pin is inserted into the inside of the lug.

[0012] Preferably, a spring cap is coaxially embedded on the outer surface of the fixing frame pin, the spring cap is slidably installed inside the fixing shell, a spring body is wound around the outside of the fixing frame 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 surface of the fixing shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 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 flip multiple eye patch mold seats. During the flipping process, the top cover frame will move to push the eye patch mold cover. At this time, the guide column slides in the guide ring to guide the eye patch mold cover so that the eye patch mold cover can be gradually covered on the eye patch mold seat. When the locking hole on the lever is aligned with the locking stud, the locking stud is screwed into the locking hole to lock the lever, and then the flipped multiple eye patch mold seats are locked, so that the eye patch mold seat remains tilted at fifteen degrees. The process can tilt multiple eye patch mold seats at the same time by fifteen degrees, and simultaneously cover multiple eye patch mold covers on multiple eye 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.

[0014] 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 refrigerator, and the eye patch to be cooled is placed in the refrigerator for cooling and forming. At this time, the fixing pin is inserted into another lug under the push of the spring body to fix the rotated carrier. The process greatly shortens the replacement time, avoids the large amount of cold air in the refrigerator from being discharged, and effectively reduces the energy consumption of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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; Figure 2 It is a schematic diagram of a carrier of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention; Figure 3 It is a schematic diagram of a weighted ball of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention; Figure 4 It is a schematic diagram of another viewing angle of the weighted ball of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch of the present invention; 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; 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; Figure 7 This is a schematic diagram of a support of a cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to the present invention; Figure 8 The present invention is a schematic diagram of an eye patch mold base of a cooling molding device for producing a polyvinyl alcohol hydrogel eye patch.

[0016] In the figure: 1, freezer; 2, cabinet door; 3, accommodating cavity; 4, carrier; 5, fixed shell; 6, lug; 7, support; 8, eye mask mold cover; 9, counterweight ball; 10, first connecting seat; 11, top cover frame; 12, connecting frame; 13, material rod; 14, fixed sleeve; 15, guide post; 16, guide ring; 17, positioning cap; 18, eye mask mold base; 19, second connecting seat; 20, lever; 21, turning frame; 22, convex frame; 23, turning shaft; 24, guide sleeve; 25, positioning cover; 26, card slot; 27, threaded post; 28, locking stud; 29, locking hole; 30, handwheel; 31, threaded sleeve; 32, spring cap; 33, fixed frame pin; 34, spring body; 35, connecting ear; 36, limiting piece. Detailed implementation manner

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0018] As Figures 1-8A cooling and forming device for producing polyvinyl alcohol hydrogel eye patches as shown, including a freezer 1 and a cabinet door 2 installed on the freezer 1. The cabinet door 2 can be opened to facilitate cleaning the inside of the freezer 1. A receiving cavity 3 is penetrated and opened on the front end face of the cabinet door 2. A carrier 4 is rotatably installed inside the receiving cavity 3. The outer surface of the carrier 4 is closely 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 with the carrier 4 and prevent cold air leakage. A fixing member is provided between the carrier 4 and the cabinet door 2. Both the front and rear ends of the carrier 4 are connected with material rods 13. A plurality of connecting frames 12 are linearly arrayed on the outer surface of the material rods 13. The material rods 13 play a role in carrying the connecting frames 12. A turning shaft 23 is rotatably installed through the lower end of the connecting frame 12. 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 with an eye patch mold cover 8. The top cover frame 11 can push the eye patch mold cover 8 to insert it into the inside of the eye patch mold base 18, that is, cover the eye patch mold base 18, so as to limit the raw materials in the eye patch mold base 18. After the eye patch mold base 18 is tilted, the liquid level of the raw materials inside it will not be tilted, that is, to ensure that the liquid level is always parallel to the inner bottom surface of the eye patch mold base 18. A plurality of air holes are evenly distributed and penetrated on the eye patch mold cover 8, which can allow the bubbles discharged from the raw materials to overflow from the air holes. At the same time, the air holes adopt a smaller diameter so that the raw materials will not be discharged from the air holes. Since the above exhaust means are prior art and have been widely used, they are not elaborated in detail here and are not shown in the figure. The outer surface of the turning shaft 23 is installed with an eye patch mold base 18. The eye patch mold cover 8 is slidably connected with the eye patch mold base 18. The turning shaft 23 plays a role in allowing the eye patch mold base 18 to turn. A shifting rod 20 is slidably installed on the side of the material rod 13. A convex frame 22 is inlaid at the end of the turning shaft 23. A turning frame 21 is rotatably installed at the end of the convex frame 22. The shifting rod 20 can drive the turning frame 21 to move and push the convex frame 22, thereby driving the turning shaft 23 to drive a plurality of eye patch mold bases 18 to turn. The turning frame 21 is connected with the shifting rod 20.

[0019] A guide sleeve 24 is slidably installed on the outer surface of the shifting rod 20. The end of the guide sleeve 24 is fixed to the material rod 13. The guide sleeve 24 plays a role in guiding the shifting rod 20. A positioning cover 25 is fitted and installed on the upper end of the shifting rod 20. 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 shifting rod 20 so that a plurality of eye patch mold bases 18 can be reset to a horizontal state synchronously. A locking stud 28 is screwed through the side of the lowermost guide sleeve 24. A locking hole 29 is opened near the lower edge on the side of the shifting rod 20. A limiting piece 36 extends near the lower edge at the front end of the shifting rod 20. The limiting piece 36 can press on the lowermost guide sleeve 24 to position the downward movement height of the shifting rod 20 so that the locking hole 29 can be aligned with the locking stud 28.

[0020] In the middle of the rear end of the eye protection patch mold base 18, a connecting ear 35 extends. The connecting ear 35 is embedded in the outer surface of the turning shaft 23. The connecting ear 35 serves to fix the eye protection patch mold base 18 and the turning shaft 23 together. In the middle of the front end of the eye protection patch mold base 18, a counterweight ball 9 is fixedly installed. The locking stud 28 is screwed out of the locking hole 29 to release the lever 20. At this time, multiple eye protection patch mold bases 18 are synchronously turned downwards 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 base 18. When the top of the lever 20 abuts against the positioning cover 25, the eye protection patch mold base 18 will be automatically locked, so that multiple eye protection patch mold bases 18 are synchronously reset to the horizontal state. At the same time, multiple eye protection patch mold covers 8 are opened from multiple eye protection patch mold bases 18, so as to take out the eye protection patches cooled and formed in the eye protection patch mold base 18 or add the raw materials of the eye protection patches to be cooled and formed. In the middle of the upper end of the eye protection patch mold cover 8, a first connecting seat 10 extends. The end of the top cover frame 11 is rotatably installed inside the first connecting seat 10. The first connecting seat 10 serves to facilitate the connection with the top cover frame 11.

[0021] At the end of the turning frame 21, a second connecting seat 19 is rotatably installed. The end of the second connecting seat 19 is fixed to the lever 20. The second connecting seat 19 serves to facilitate the connection with the turning frame 21. At the rear end of the connecting frame 12, a fixing sleeve 14 extends. The fixing sleeve 14 is embedded in the outer surface of the material rod 13. The fixing sleeve 14 serves to fix the connecting frame 12.

[0022] On both sides of the eye protection patch mold cover 8, guide posts 15 are fixedly installed. A guide ring 16 is slidably installed on the outer surface of the guide posts 15. The guide ring 16 is fixed to the eye protection patch mold base 18. The guide posts 15 and the guide ring 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. At the lower end of the guide post 15, a positioning cap 17 is embedded. The guide ring 16 abuts against the upper end of the positioning cap 17. The positioning cap 17 serves to prevent the guide ring 16 and the guide post 15 from separating.

[0023] At the middle parts of the front and rear ends of the carrier 4, two supporting seats 7 symmetrically extend. The supporting seats 7 serve to support the material rod 13. On the opposite surfaces of the two supporting seats 7, card slots 26 are formed. The card slots 26 serve to position the material rod 13. The upper and lower ends of the material rod 13 are respectively clamped in the card slots 26 on the two supporting seats 7. A threaded sleeve 31 is embedded through the lower end of the lower supporting seat 7. A threaded column 27 is screwed tightly inside the threaded sleeve 31. The threaded sleeve 31 serves to cooperate with the threaded column 27. The two ends of the threaded column 27 respectively extend out of the upper and lower ends of the threaded sleeve 31. The upper end of the threaded column 27 is inserted into the lower end of the material rod 13, and can fix the material rod 13. A hand wheel 30 is coaxially embedded at the lower end of the threaded column 27. The hand wheel 30 serves to facilitate the rotation of the threaded column 27.

[0024] The fixing member includes a fixing shell 5 fixedly installed at the front edge of the cabinet door 2. Lugs 6 extend from one side edge of the front end and the other side 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 serves to carry the fixing pin 33. Both ends of the fixing pin 33 penetrate out from both sides of the fixing shell 5. The fixing pin 33 is slidably engaged with the fixing shell 5. One end of the fixing pin 33 is inserted into the inside of the lug 6, which can fix the carrier 4. By pulling the fixing pin 33, the fixing pin 33 pushed by the spring body 34 can be driven to disengage from the lug 6. Then, the carrier 4 is rotated 180 degrees, and the eye protection stickers cooled and formed in the freezer 1 can be taken out, and the eye protection stickers to be cooled are placed in the freezer 1 for cooling and forming. At this time, the fixing pin 33 is inserted into another lug 6 under the push of the spring body 34 to fix the rotated carrier 4. This process greatly shortens the replacement time, avoids a large amount of cold air in the freezer 1 from being discharged, and effectively reduces the energy consumption of the freezer 1.

[0025] A spring cap 32 is coaxially inlaid on the outer surface of the fixing pin 33. The spring cap 32 is slidably installed inside the fixing shell 5. A spring body 34 is wound around the outside of the fixing pin 33. The spring cap 32 serves to be 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 surface of the fixing 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.

[0026] During cooling and forming, the material rod 13 is placed between two brackets 7. At this time, both ends of the material rod 13 are engaged in the card slots 26. Then, the threaded column 27 is rotated to insert the threaded column 27 into the lower end of the material rod 13 to fix the material rod 13 at the front end of the carrier 4. Subsequently, the lever 20 is toggled downward to drive the turning frame 21 to move and push the convex frame 22, thereby driving the turning shaft 23 to drive a plurality of eye mask molds 18 to turn over. During the turning process, the top cover frame 11 moves to push the eye mask cover 8. At this time, the guide post 15 slides within the guide ring 16 to guide the eye mask cover 8 so that the eye mask cover 8 can gradually cover the eye mask mold 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 plurality of turned-over eye mask molds 18 and keeping the eye mask molds 18 in a state of tilting 15 degrees. At the same time, the eye mask cover 8 remains tightly covered on the eye mask mold 18. Subsequently, the fixing frame pin 33 is pulled to drive the fixing frame pin 33 pushed by the spring body 34 to disengage from the lug 6. Then, the carrier 4 is rotated 180 degrees so that a plurality of eye mask molds 18 at the front end of the carrier 4 can be transferred into the interior of the freezer 1 to cool and form the eye masks in the eye mask molds 18. At this time, the rear end of the carrier 4 faces forward. Then, another material rod 13 is fixed to the rear end of the carrier 4 and the eye mask molds 18 are kept tilted 15 degrees. After the hydrogel eye masks at the front end of the carrier 4 are cooled and formed, the fixing frame pin 33 is pulled to drive the fixing 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 masks that have been cooled and formed in the freezer 1 and place the eye masks to be cooled, that is, the eye masks at the rear end of the carrier 4, into the freezer 1 for cooling. At this time, the fixing frame pin 33 is inserted into another lug 6 under the push of the spring body 34 to fix the rotated carrier 4. Subsequently, the locking stud 28 can be unscrewed from the locking hole 29 to release the lever 20. At this time, the plurality of eye mask molds 18 synchronously turn down automatically under the action of the counterweight balls 9, and at the same time, the eye mask cover 8 gradually separates from the eye mask mold 18. When the top of the lever 20 abuts against the positioning cover 25, the eye mask molds 18 will be automatically locked so that the plurality of eye mask molds 18 synchronously reset to the horizontal state. Subsequently, the threaded column 27 can be unscrewed from the lower end of the material rod 13 to remove the material rod 13 from the front end of the carrier 4, and the next material rod 13 is fixed to the front end of the carrier 4 to wait for cooling, and the cooling and forming is carried out in this cycle.

[0027] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch, 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 accommodating cavity (3) through which a carrier (4) is rotatably mounted inside the accommodating cavity (3); the outer surface of the carrier (4) is in close contact with the inner surface of the accommodating 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 connected to a material rod (13); a plurality of connecting frames (12) are linearly arrayed 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); and 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 patch mold cover (8) at the end thereof, a plurality of air holes are evenly distributed and penetrated on the eye patch mold cover (8), an eye patch mold seat (18) is mounted on the outer surface of the flip shaft (23), the eye patch mold cover (8) is slidably connected to the eye patch mold seat (18), a lever (20) is slidably mounted on the side of the material rod (13), a convex frame (22) is inlaid at the end of the flip shaft (23), a flip frame (21) is rotatably mounted on the end of the convex frame (22), and the flip frame (21) is connected to the lever (20).

2. A 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 lever (20), 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 lever (20), 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 opened on the side surface of the lever (20) near the lower edge, and a limiting plate (36) extends from the front end of the lever (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 seat (18), and the connecting ear (35) is embedded in the outer surface of the turning shaft (23). A counterweight ball (9) is fixedly installed in the middle of the front end of the eye protection patch mold seat (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 turning frame (21), the end of the second connecting seat (19) is fixed to the shifting rod (20), and 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), 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 a positioning cap (17) is embedded in the lower end of the guide pillar (15), and the guide ring (16) is fitted to the upper end of the positioning cap (17).

6. A 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 opposing 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), and the lower end of the lower bracket (7) is penetrated by a threaded sleeve (31) and inlaid with a threaded column (27) inside the threaded sleeve (31), and the two ends of the threaded column (27) extend from the upper and lower ends of the threaded sleeve (31) respectively, and 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. A 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); two ends of the fixing pin (33) extend from 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).

8. A cooling and molding device for producing a polyvinyl alcohol hydrogel eye patch according to claim 7, characterized in that: A spring cap (32) is coaxially inlaid on the outer surface of the fixing pin (33), and the spring cap (32) is slidably mounted inside the fixing shell (5). A spring body (34) is wound around the outer side of the fixing pin (33), 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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