A sealing device for gel production
By using a motor-driven lead screw and cylinder cutting blade design, the problem of incomplete sealing caused by deformation of the plastic sealing film at high temperatures is solved, achieving flatness and precise cutting of the sealing device, thus improving packaging quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 西安鸿发药业有限公司
- Filing Date
- 2025-09-27
- Publication Date
- 2026-08-04
AI Technical Summary
Existing medical hydrogel eye patch sealing devices may experience deformation of the sealing film at high temperatures, resulting in uneven surfaces, wrinkles, and bubbles, which affects the sealing effect.
A sealing device for gel production was designed. The device uses a motor-driven screw to move the moving block and fixed roller, thereby widening the gap between the guide rollers, eliminating wrinkles and air bubbles in the sealing film, and using a cylinder to drive a cutting blade to cut at a fixed position in the groove, ensuring a neat and burr-free seal.
It effectively smooths wrinkles on the surface of the plastic sealing film, ensuring a flat film surface before heat pressing, improving sealing performance and aesthetics, reducing leakage problems, and improving production efficiency and packaging consistency.
Smart Images

Figure CN224589513U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gel production technology, specifically a sealing device for gel production. Background Technology
[0002] Currently, with the widespread use of electronic products such as computers, televisions, and mobile phones, people's eye rest time is getting shorter and shorter, leading to symptoms such as dry and swollen eyes for most people, and even serious vision loss. Meanwhile, office workers often work in front of monitors, some even working overtime late into the night, easily causing eye fatigue, resulting in dark circles, eye bags, and wrinkles around the eyes, seriously affecting eye health and appearance. To address these problems, medical hydrogel eye patches have been developed. However, most medical hydrogel eye patches on the market are stored in packaging bags.
[0003] In the production and processing of medical hydrogel eye patches, the medical hydrogel eye patches are often placed in packaging bags. In order to seal and preserve the medical hydrogel eye patches, a sealing machine is often used to seal the packaging bags containing the hydrogel eye patches. During the use of the sealing machine, the plastic film may deform due to high temperature, resulting in an uneven surface and wrinkles, which affects the sealing effect. In view of this, a sealing device for gel production is proposed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a sealing device for gel production, which solves the problem of inconvenient sealing during gel production.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: a sealing device for gel production, comprising a conveyor belt, a hot pressing device being provided on the conveyor belt, and a plastic sealing film storage rack being provided on the left surface of the conveyor belt;
[0008] The conveyor belt is equipped with a sealing mechanism, which includes a fixed block, a first chute, a lead screw, a motor, a moving block, a fixed roller, a first support rod, a second support rod, a second chute, a first guide roller, a third support rod, a second guide roller, a bracket, a cylinder, a moving plate, a groove, and a cutting blade.
[0009] Preferably, the fixing block is disposed on the left surface of the conveyor belt, and the first chute is formed on the front surface of the fixing block;
[0010] The lead screw is rotatably connected in the inner wall of the first slide groove, and the right end of the lead screw passes through the right surface of the fixed block. The motor is fixedly installed on the right surface of the fixed block, and the motor is fixedly connected to the right end of the lead screw.
[0011] Preferably, the outer surface of the lead screw is threaded onto the movable block, and the movable block is slidably sleeved in the inner wall of the first groove;
[0012] The fixed roller is fixedly installed on the front surface of the moving block.
[0013] Preferably, the first support rod is rotatably sleeved on the outer surface of the fixed roller, the second support rod is rotatably connected to the upper end of the first support rod, and the second support rod is rotatably connected to the front surface of the fixed block;
[0014] The second chute is formed on the front surface of the second support rod, and the first guide roller is rotatably connected to the front surface of the second support rod.
[0015] Preferably, the third support rod is slidably sleeved in the inner wall of the second groove, and the second guide roller is rotatably connected to the front surface of the third support rod.
[0016] Preferably, the bracket is disposed on the upper surface of the conveyor belt, and the cylinder is fixedly installed on the upper surface of the bracket cross plate.
[0017] The movable plate is fixedly installed at the lower end of the cylinder piston rod, and the movable plate is slidably sleeved on the outer surface of the support column.
[0018] Preferably, the plurality of grooves are formed on the opposite sides of the movable plate and the support base plate, and the cutting blade is fixedly installed on the lower surface of the movable plate.
[0019] (III) Beneficial Effects
[0020] Compared with the prior art, the present invention provides a sealing device for gel production, which has the following advantages:
[0021] 1. This sealing device for gel production uses a motor-driven screw to move a moving block and a fixed roller. This causes the first support rod to push the second support rod to rotate and move upward, while the third support rod slides down in the second chute, causing the second guide roller to move downward, widening the distance between the two guide rollers. During this process, the first and second guide rollers apply pressure to the plastic sealing film, which can effectively smooth wrinkles, eliminate air bubbles, and ensure that the film surface is flat before hot pressing. This avoids poor sealing of the hot pressing equipment due to uneven film surface, improves sealing performance and aesthetics, and reduces quality problems such as leaks.
[0022] 2. In this sealing device for gel production, after hot pressing, the cylinder drives the moving plate to lower the cutting blade, and the groove simultaneously holds the plastic sealing film. This design uses the groove to fix the position of the film material and prevent it from shifting during cutting. This allows the cutting blade to cut the continuous plastic sealing film along the predetermined position, ensuring that the plastic sealing edge of the gel packaging box is neat, without burrs or tears, and that each segment of film is of consistent length. This facilitates subsequent automated processes and improves production efficiency and packaging consistency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of a sealing device for gel production according to the present invention;
[0024] Figure 2 This is a schematic diagram of the fixing block structure of this utility model;
[0025] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;
[0026] Figure 4 This is a schematic diagram of the support structure of this utility model;
[0027] Figure 5 This utility model Figure 4 Enlarged view of the structure at point B in the middle.
[0028] In the diagram: 1. Conveyor belt; 2. Plastic film storage rack; 3. Hot pressing equipment; 4. Fixed block; 5. First chute; 6. Lead screw; 7. Motor; 8. Moving block; 9. Fixed roller; 10. First support rod; 11. Second support rod; 12. Second chute; 13. First guide roller; 14. Third support rod; 15. Second guide roller; 16. Support; 17. Cylinder; 18. Moving plate; 19. Groove; 20. Cutting blade. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1-5 This utility model provides a new technical solution: a sealing device for gel production, including a conveyor belt 1, a hot pressing device 3 on the conveyor belt 1, and a plastic sealing film storage rack 2 on the left surface of the conveyor belt 1.
[0031] The conveyor belt 1 is equipped with a sealing mechanism, which includes a fixed block 4, a first chute 5, a lead screw 6, a motor 7, a moving block 8, a fixed roller 9, a first support rod 10, a second support rod 11, a second chute 12, a first guide roller 13, a third support rod 14, a second guide roller 15, a bracket 16, a cylinder 17, a moving plate 18, a groove 19, and a cutting blade 20.
[0032] Furthermore, the fixing block 4 is disposed on the left surface of the conveyor belt 1, and the first chute 5 is opened on the front surface of the fixing block 4;
[0033] The lead screw 6 is rotatably connected in the inner wall of the first slide groove 5, and the right end of the lead screw 6 extends through the right surface of the fixing block 4. The motor 7 is fixedly installed on the right surface of the fixing block 4, and the motor 7 is fixedly connected to the right end of the lead screw 6.
[0034] Furthermore, the movable block 8 is threaded onto the outer surface of the lead screw 6, and the movable block 8 is slidably sleeved in the inner wall of the first groove 5.
[0035] The fixed roller 9 is fixedly installed on the front surface of the moving block 8.
[0036] Furthermore, the first support rod 10 is rotatably sleeved on the outer surface of the fixed roller 9, and the second support rod 11 is rotatably connected to the upper end of the first support rod 10 and rotatably connected to the front surface of the fixed block 4.
[0037] The second chute 12 is formed on the front surface of the second support rod 11, and the first guide roller 13 is rotatably connected to the front surface of the second support rod 11.
[0038] Furthermore, the third support rod 14 is slidably sleeved in the inner wall of the second groove 12, and the second guide roller 15 is rotatably connected to the front surface of the third support rod 14.
[0039] Furthermore, the bracket 16 is set on the upper surface of the conveyor belt 1, and the cylinder 17 is fixedly installed on the upper surface of the cross plate of the bracket 16.
[0040] The movable plate 18 is fixedly installed at the lower end of the piston rod of the cylinder 17, and the movable plate 18 is slidably sleeved on the outer surface of the support 16 upright.
[0041] Furthermore, multiple grooves 19 are formed on the opposite sides of the movable plate 18 and the base plate of the bracket 16, and the cutting blade 20 is fixedly installed on the lower surface of the movable plate 18.
[0042] When this sealing device for gel production is in use, the filled gel packaging boxes are transported by conveyor belt 1. At this time, the motor 7 is started, driving the screw 6 fixedly mounted at its output end to rotate. Simultaneously, the moving block 8, threaded on the outer surface of the screw 6, continuously moves to the left via the threads on the outer surface of the screw 6. The moving block 8 drives the fixed roller 9, fixedly mounted on the front surface, to move to the left. The fixed roller 9 drives the first support rod 10, rotatably mounted on its outer surface, to move to the left. As the first support rod 10 moves to the left, it applies a leftward induction force to the second support rod 11, which is rotatably connected at its upper end. The second support rod 11 gradually rotates on the front surface of the fixed block 4, gradually tilting. The second support rod 11 drives the first guide roller 13, fixedly mounted on the front surface, to move upward, while the third support rod 14... The third support rod 14 slides downward in the inner wall of the second slide groove 12. At this time, the third support rod 14 drives the second guide roller 15 to move downward. At this time, the distance between the two guide rollers increases, and pressure is applied to the surface of the plastic seal film passing between the guide rollers to make its surface flat. At this time, the gel packaging box and the plastic seal film come to the bottom of the hot press equipment 3 together. The hot press equipment 3 presses the gel packaging box and the plastic seal film together. At this time, the cylinder 17 is started. The cylinder 17 drives the moving plate 18 fixedly installed at the lower end of the piston rod to move downward. The cutting blade fixedly installed on the lower surface of the moving plate 18 cuts the continuous plastic seal film. When the cutting blade 20 descends to cut the plastic seal film, the groove 19 can hold the plastic seal film to prevent the plastic seal film from moving during the cutting process.
[0043] This sealing device for gel production uses a motor 7 to drive a lead screw 6, which in turn moves a moving block 8 and a fixed roller 9. This causes the first support rod 10 to push the second support rod 11 to rotate and move upward. At the same time, the third support rod 14 slides down in the second slide groove 12, causing the second guide roller 15 to move downward, widening the distance between the two guide rollers. During this process, the first guide roller 13 and the second guide roller 15 apply pressure to the plastic sealing film, which can effectively smooth wrinkles and eliminate air bubbles, ensuring that the film surface is flat before hot pressing. This avoids the sealing of the hot pressing equipment 3 due to uneven film surface, improves sealing performance and aesthetics, and reduces quality problems such as leaks. After hot pressing, the cylinder 17 drives the moving plate 18 to move the cutting blade 20 downward. The groove 19 simultaneously holds the plastic sealing film. This design uses the groove 19 to fix the position of the film material and prevents it from shifting during cutting. This allows the cutting blade 20 to cut the continuous plastic sealing film along the predetermined position, ensuring that the plastic sealing edge of the gel packaging box is neat, without burrs or tears, and that each segment of film is of consistent length. This facilitates subsequent automated processes and improves production efficiency and packaging consistency.
[0044] Structural Description:
[0045] Conveyor Belt 1: As the basic conveying component of the entire sealing device, it is responsible for conveying the gel products to be sealed according to the set route. It provides a stable moving platform for the products, enabling the products to pass through the various functional areas of the device in sequence, ensuring the continuity and orderliness of the sealing process, and is the key carrier for realizing automated sealing.
[0046] Plastic sealing film storage rack 2: Installed on the left surface of conveyor belt 1, it is mainly used to store plastic sealing film. It continuously provides film material for sealing operations. Through reasonable structural design, it can ensure that the plastic sealing film is not easily tangled or scattered during the retrieval process, and ensure that the plastic sealing film can be smoothly pulled, unfolded and sealed by subsequent components.
[0047] Hot pressing equipment 3: Located on conveyor belt 1, its function is to heat and pressurize the plastic sealing film. After the plastic sealing film wraps the gel product, the hot pressing equipment 3 uses high temperature and pressure to make the edges of the plastic sealing film tightly bonded, forming a strong seal, ensuring that the gel product is well sealed and preventing external contamination or product leakage.
[0048] Fixed block 4: Located on the left surface of conveyor belt 1, it is an important fixed support component of the sealing mechanism. It provides the installation foundation for components such as screw 6 and first chute 5, ensuring that these components are stable in position during operation, thereby enabling the entire sealing mechanism to operate accurately and reliably, and ensuring the accuracy and stability of the sealing operation.
[0049] First groove 5: It is formed on the front surface of fixed block 4 and cooperates with lead screw 6 and moving block 8 to form a linear motion mechanism. It provides a sliding track for moving block 8, restricts the movement direction of moving block 8, and makes moving block 8 only move along the axial direction of lead screw 6, so as to ensure the accuracy and stability of the movement of moving block 8 and its mounted components.
[0050] Lead screw 6: Rotatably connected to the inner wall of the first slide groove 5. Through threaded engagement with the moving block 8, it converts the rotational motion of the motor 7 into the linear motion of the moving block 8. When the lead screw 6 rotates under the drive of the motor 7, the moving block 8 can move along the axial direction of the lead screw 6, thereby driving the fixed roller 9 and other components to move, thereby adjusting the position of the plastic seal film.
[0051] Motor 7: Fixedly mounted on the right surface of the fixed block 4, it is the power source for the rotation of the lead screw 6. By controlling the speed and direction of the motor 7, the rotation of the lead screw 6 can be precisely adjusted, thereby accurately controlling the moving speed and position of the moving block 8, providing power support and motion control for the adjustment of the plastic sealing film during the sealing operation.
[0052] Moving block 8: It is threaded onto the outer surface of the lead screw 6 and slidably sleeved on the inner wall of the first slide groove 5. Driven by the lead screw 6, it moves along the first slide groove 5. As an intermediate transmission component, it drives the fixed roller 9 and subsequent material guiding components to move, realizing flexible adjustment of the conveying path and position of the plastic sealing film to adapt to the sealing requirements of different product specifications.
[0053] Fixed roller 9: Fixedly installed on the front surface of the moving block 8, it is used to support and guide the plastic sealing film. It can keep the plastic sealing film flat during unfolding and conveying, avoid wrinkles or displacement of the plastic sealing film, and ensure that the plastic sealing film can pass smoothly through the subsequent guide roller and cutter 20, laying the foundation for high-quality sealing.
[0054] First support rod 10: Rotatably sleeved on the outer surface of fixed roller 9, cooperating with second support rod 11, can adjust the angle and position of fixed roller 9. By changing the relative angle between first support rod 10 and second support rod 11, the conveying direction and tension of plastic sealing film can be flexibly adjusted, so that plastic sealing film can better fit the product and improve the sealing effect.
[0055] The second support rod 11 is rotatably connected to the upper end of the first support rod 10 and the front surface of the fixed block 4. A second sliding groove 12 is opened on it and the first guide roller 13 is installed. It works in conjunction with the first support rod 10 to provide multi-angle adjustment function for guiding the plastic sealing film, and at the same time provides a base for the installation and adjustment of the third support rod 14 and the second guide roller 15.
[0056] The second chute 12 is formed on the front surface of the second support rod 11 and cooperates with the third support rod 14. It can adjust the position of the second guide roller 15. By sliding the third support rod 14 in the second chute 12, the height and position of the second guide roller 15 can be changed, thereby further adjusting the conveying path and tension of the plastic sealing film to adapt to the sealing requirements of products of different sizes.
[0057] First guide roller 13: Rotatably connected to the front surface of the second support rod 11, it guides the plastic sealant film. It works in conjunction with the second guide roller 15 to maintain a stable path and appropriate tension for the plastic sealant film during the conveying process, preventing the plastic sealant film from deviating or loosening, and ensuring that the plastic sealant film can accurately cover the gel product.
[0058] The third support rod 14 is slidably sleeved on the inner wall of the second slide groove 12. By sliding within the second slide groove 12, the position of the second guide roller 15 can be adjusted. It provides movable mounting support for the second guide roller 15, enabling operators to flexibly adjust the height and position of the second guide roller 15 according to actual production needs, thereby optimizing the conveying effect of the plastic sealant film.
[0059] The second guide roller 15 is rotatably connected to the front surface of the third support rod 14. Together with the first guide roller 13, it guides and tensions the plastic sealant film. It can further adjust the conveying state of the plastic sealant film to ensure that the plastic sealant film is conveyed flat and stably to the sealing position, thus ensuring sealing quality and efficiency.
[0060] Support 16: Located on the upper surface of conveyor belt 1, it provides mounting support for cylinder 17 and moving plate 18. It ensures that cylinder 17 and moving plate 18 remain stable during operation, enabling the cutting blade 20 to accurately cut the plastic sealant. It is a basic component for the stable operation of the cutting mechanism.
[0061] Cylinder 17: Fixedly installed on the upper surface of the horizontal plate of the bracket 16, serving as the power source for the up-and-down movement of the cutting blade 20. Through the extension and retraction of the piston rod of cylinder 17, the moving plate 18 and the cutting blade 20 are driven to move up and down, thereby realizing the cutting action of the plastic seal film and completing the cutting work of the sealed plastic seal film.
[0062] Movable plate 18: It is fixedly installed at the lower end of the piston rod of cylinder 17 and slidably sleeved on the outer surface of the support 16. Driven by cylinder 17, it drives the cutting blade 20 to move up and down along the support 16. At the same time, it cooperates with the groove 19 on the bottom plate of support 16 to ensure that the cutting blade 20 is accurately positioned during the cutting process and achieves precise cutting.
[0063] Groove 19: It is formed on the opposite side of the base plate of the movable plate 18 and the bracket 16, and cooperates with the cutting blade 20 to fix the plastic sealing film. When the cutting blade 20 descends to cut the plastic sealing film, the groove 19 can hold the plastic sealing film to prevent it from moving or deforming during the cutting process, ensuring neat and accurate cutting, and guaranteeing the appearance quality of the sealed product.
[0064] Cutting blade 20: Fixedly installed on the lower surface of the moving plate 18, it is the execution component for cutting the plastic seal film. Driven by the cylinder 17, the cutting blade 20 descends and uses its sharp blade to cut the plastic seal film, completing the cutting process after sealing, so that each gel product is individually and completely sealed and packaged.
[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sealing device for gel production, comprising a conveyor belt (1), characterized in that: A hot pressing device (3) is provided on the conveyor belt (1), and a plastic sealing film storage rack (2) is provided on the left surface of the conveyor belt (1); The conveyor belt (1) is equipped with a sealing mechanism, which includes a fixed block (4), a first chute (5), a lead screw (6), a motor (7), a moving block (8), a fixed roller (9), a first support rod (10), a second support rod (11), a second chute (12), a first guide roller (13), a third support rod (14), a second guide roller (15), a bracket (16), a cylinder (17), a moving plate (18), a groove (19), and a cutting blade (20).
2. The sealing device for gel production according to claim 1, characterized in that: The fixing block (4) is set on the left surface of the conveyor belt (1), and the first chute (5) is opened on the front surface of the fixing block (4); Among them, the lead screw (6) is rotatably connected in the inner wall of the first slide groove (5), the right end of the lead screw (6) passes through the right surface of the fixing block (4), the motor (7) is fixedly installed on the right surface of the fixing block (4), and the motor (7) is fixedly connected to the right end of the lead screw (6).
3. A sealing device for gel production according to claim 2, characterized in that: The movable block (8) is threaded onto the outer surface of the lead screw (6), and the movable block (8) is slidably sleeved in the inner wall of the first groove (5); The fixed roller (9) is fixedly installed on the front surface of the moving block (8).
4. A sealing device for gel production according to claim 3, characterized in that: The first support rod (10) is rotatably sleeved on the outer surface of the fixed roller (9), and the second support rod (11) is rotatably connected to the upper end of the first support rod (10) and rotatably connected to the front surface of the fixed block (4); The second chute (12) is formed on the front surface of the second support rod (11), and the first guide roller (13) is rotatably connected to the front surface of the second support rod (11).
5. A sealing device for gel production according to claim 4, characterized in that: The third support rod (14) is slidably sleeved in the inner wall of the second groove (12), and the second guide roller (15) is rotatably connected to the front surface of the third support rod (14).
6. A sealing device for gel production according to claim 5, characterized in that: The bracket (16) is set on the upper surface of the conveyor belt (1), and the cylinder (17) is fixedly installed on the upper surface of the cross plate of the bracket (16); The movable plate (18) is fixedly installed at the lower end of the piston rod of the cylinder (17), and the movable plate (18) is slidably sleeved on the outer surface of the support (16) column.
7. A sealing device for gel production according to claim 6, characterized in that: Multiple grooves (19) are formed on the opposite sides of the base plate of the movable plate (18) and the support (16), and the cutting blade (20) is fixedly installed on the lower surface of the movable plate (18).