A preparation device for screw cap of experimental glass desiccator with sealing compensation

Abstract

The application discloses a preparation device for a screw cap of a glass desiccator with sealing compensation, and relates to the technical field of the preparation of the screw cap of the glass desiccator, comprising a centrifugal forming device, a driving part, an operation table and a mounting table. The driving part is used to drive the centrifugal forming device to rotate, and the cooling fan on the mounting table is used to cool the finished product. The centrifugal forming device uses a sealing compensation assembly, which can detect the deformation of the cavity when the mold is used. When the deformation of a certain part of the cavity is abnormally increased compared with other areas, the cavity at the part is worn out. The compensation block timely supports the cavity at the part to inhibit the further deformation of the part, compensates the weak sealing part, makes the stress of the cavity tend to be uniform, reduces the stress concentration at the part, slows down the trend of the wear and tear of the part, prolongs the service life of the mold, and reduces the maintenance frequency and replacement cost.

Description

Technical Field

[0001] This invention relates to the field of glass desiccator screw cap manufacturing technology, specifically a device for manufacturing experimental glass desiccator screw caps with built-in sealing compensation. Background Technology

[0002] Glass desiccators are common sealed containers used in laboratories for drying and storing samples. The screw cap, as a sealing component of the glass desiccator, can affect the desiccator's performance and safety.

[0003] Existing glass dryer screw caps are often manufactured using centrifugal molding. Rotation causes the molten glass to be evenly distributed on the inner wall of the mold. However, during long-term use, the molten glass repeatedly contacts and rubs against the mold cavity surface, causing wear on the cavity surface. At the same time, the mold can experience thermal fatigue at high temperatures, which accelerates surface wear and leads to a decrease in local stiffness. Under the centrifugal pressure of the molten glass on the cavity, the elastic deformation generated in this area will be greater than that in the normal area. Long-term stress concentration in this area may accelerate and expand the wear of the mold, affecting its service life. Summary of the Invention

[0004] The purpose of this invention is to provide a device for preparing a screw cap for an experimental glass desiccator with built-in sealing compensation, so as to solve the problem of wear and tear of molds after long-term use in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a centrifugal forming device is included, a driving component is installed on one side of the centrifugal forming device, and the driving component is connected to a controller; the driving component is a motor, and in use, the glass molten material is manually placed into the centrifugal forming device, and the motor is controlled to drive the centrifugal forming device to rotate, thereby centrifugally forming the glass molten material.

[0006] The centrifugal molding device includes a base, a drive unit mounted on one side of the base, a housing mounted on the base, a cavity mounted inside the housing, a compensation cavity between the housing and the cavity, a detection component mounted inside the compensation cavity, a trigger component mounted on one side of the detection component, a compensation component mounted on one side of the trigger component, and a compensation cover mounted on the outer wall of the cavity. In use, a control motor drives the base to rotate, the base drives the housing to rotate, and the housing drives the cavity to rotate. The detection component detects the deformation of the cavity. When an abnormally large deformation is detected at a certain point compared to other areas, the detection component moves the trigger component, which in turn moves the compensation component. The compensation component presses against the compensation cover, which in turn presses against the cavity, supporting the abnormally deformed area and slowing down the further expansion of wear at that point.

[0007] The detection assembly includes a transmission element mounted on a housing. A limit ring is installed on the transmission element, and a differential ring is slidably mounted inside the limit ring. When wear occurs in a certain area of ​​the cavity, the differential ring moves away from that area, causing the transmission element to move.

[0008] The triggering assembly includes an active element and a driven element mounted on one side of the active element. The active element and the driven element rotate within the compensation cavity. When wear occurs in a certain area of ​​the cavity, the transmission element drives the active element to move, and the active element drives the driven element to move.

[0009] The compensation assembly includes a mounting cylinder mounted on the outer shell. A sliding element is slidably mounted inside the mounting cylinder, and a support element is slidably mounted inside the sliding element. When wear occurs in a certain area of ​​the cavity, the driven element drives the support element to move, and the support element presses against the compensation cover to support that area.

[0010] The transmission element includes a fixed ring mounted on the outer casing. The fixed ring has a sliding groove, within which a push rod is slidably mounted. A first rack is mounted on one side of the push rod, and a limit block is mounted on the push rod. A first elastic element is mounted on the limit block and sleeved onto the push rod. The other end of the first elastic element is mounted on the sliding groove. The first elastic element is a first spring. The differential ring drives the push rod in this direction to move away from the compensation cover within the sliding groove, and the push rod drives the first rack to move away from the compensation cover.

[0011] The differential ring includes an arc-shaped plate that slides within a limiting ring. A contact block is mounted on the inner side of the arc-shaped plate, abutting against a compensation cover. A second elastic element is mounted on the outer side of the arc-shaped plate, with a moving ring attached to one end of the second elastic element. The second elastic element is a second spring. During operation, the cavity deforms, causing the compensation cover to deform. The compensation cover then causes the contact block to move away from the compensation cover within the limiting ring. The contact block, in turn, causes the arc-shaped plate to move away from the compensation cover. The arc-shaped plate compresses the second spring. When wear occurs in a certain area of ​​the cavity, the deformation in that area increases, resulting in a greater movement distance of the contact block compared to other areas. This also increases the movement distance of the arc-shaped plate in that area, leading to a greater force on the moving ring in that area, causing it to move away from that area.

[0012] The active element includes a first rotating shaft, a first support plate mounted on the housing, and the first rotating shaft rotating on the first support plate. A first gear is mounted on one side of the first rotating shaft, meshing with a first rack. A wheel is mounted on the other side of the first rotating shaft, and a pawl is rotatably mounted on the outer side of the wheel. A third elastic element is mounted on one side of the pawl, a mounting post is mounted on one side of the third elastic element, and a base plate is mounted on one side of the mounting post. The base plate slides within the wheel, and a fourth elastic element is mounted on the base plate, sleeved on the mounting post. The other side of the fourth elastic element is mounted within the wheel. The third elastic element is a third spring, and the fourth elastic element is a fourth spring. The first rack drives the first gear to rotate, the first gear drives the first rotating shaft to rotate, and the first rotating shaft drives the wheel to rotate. Under the action of centrifugal force, the mounting post moves away from the first rotating shaft, causing the mounting post to move the third spring away from the first rotating shaft, and the third spring causes the pawl to fully extend.

[0013] The driven element includes a second gear, a second shaft mounted on one side of the second gear, and a second support plate mounted on the housing. The second shaft rotates on the second support plate. A ratchet is mounted on the inner side of the second gear, and the ratchet meshes with a pawl. When the gear rotates, the pawl abuts against the ratchet, causing the ratchet to rotate, which in turn drives the second gear to rotate. When the gear rotates in the reverse direction, the pawl slides on the ratchet.

[0014] The sliding element includes a movable block with a movable groove, a detection rod mounted on the movable block that rests against the compensation cover, a slide rod mounted on one side of the movable block that slides within a mounting cylinder, and a fifth elastic element mounted on one side of the slide rod, with one side of the fifth elastic element mounted on the mounting cylinder. The fifth elastic element is a fifth spring. During operation, the deformation of the compensation cover causes the detection rod to move away from the compensation cover, which in turn causes the movable block to move away from the compensation cover, and the movable block, in turn, causes the slide rod to move away from the compensation cover, maintaining a certain distance between the compensation block and the compensation cover.

[0015] The supporting element includes a mounting block that slides within a movable block. An L-shaped plate is mounted on one side of the mounting block, and a second rack is mounted on the L-shaped plate, meshing with a second gear. A connecting rod is mounted on the mounting block, and a compensating block is mounted on one side of the connecting rod. A sixth elastic element is sleeved on the outer side of the connecting rod, with one side mounted on the mounting block and the other side mounted on the movable block. The sixth elastic element is a sixth spring. When the second gear rotates, it drives the second rack to move closer to the compensating cover within the movable block. The second rack then drives the L-shaped plate to move closer to the compensating cover, which in turn drives the mounting block to move closer to the compensating cover. The mounting block then drives the connecting rod to move closer to the compensating cover, and the connecting rod causes the compensating block to press against the compensating cover, which in turn presses against the cavity.

[0016] The compensation cover includes an elastic shell, which is installed on the outside of the cavity. Ribs are installed on the inner wall of the elastic shell, and these ribs abut against the cavity. The compensation block presses against the elastic shell, and the ribs of the elastic shell press against the cavity. The pressure exerted by the ribs on the cavity ensures that the force is evenly distributed within it.

[0017] The glass dryer screw cap preparation device also includes an operating table, with a base installed on one side of the operating table and a drive unit installed on the other side. An mounting platform is mounted on the operating table, and a cooling fan is installed on the mounting platform. The cooling fan is connected to the control system. During molding, the cooling fan is activated to cool the molten glass.

[0018] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a sealing compensation component to detect the deformation of the cavity during mold use. When the deformation at a certain point in the cavity is abnormally large compared to other areas, it indicates that the cavity at that point has experienced wear. The compensation block supports the cavity at that point, suppressing the deformation and compensating for the weak sealing area. This makes the force on the cavity more uniform, reduces stress concentration at that point, slows down the trend of further wear, and improves the service life of the mold. Attached Figure Description

[0019] Figure 1 This is a perspective view of the glass dryer screw cap preparation apparatus of the present invention; Figure 2 This is a schematic diagram of the internal structure of the centrifugal forming apparatus of the present invention; Figure 3 This is a perspective view of the detection component of the present invention; Figure 4 for Figure 2 A magnified view of a portion of region A in the middle; Figure 5 This is an exploded view of the detection component of the present invention; Figure 6 This is an exploded view of the active element of the present invention; Figure 7 This is a perspective view of the driven element of the present invention; Figure 8 This is an exploded view of the compensation component of the present invention; Figure 9 This is a perspective view of the compensation cover of the present invention.

[0020] In the diagram: 1. Centrifugal molding device; 11. Cavity; 12. Outer shell; 13. Compensation cavity; 14. Detection assembly; 141. Transmission element; 1411. Fixing ring; 1412. Push rod; 1413. First rack; 1414. First elastic element; 142. Differential ring; 1421. Arc plate; 1422. Contact block; 1423. Second elastic element; 1424. Moving ring; 143. Limiting ring; 15. Trigger assembly; 151. Active element; 1511. First gear; 1512. First rotating shaft; 1513. Rotating wheel; 1514. Pawl; 1515. Base plate; 1516. Mounting column; 1517. Third... 1518, Fourth elastic element; 152, Driven element; 1521, Second gear; 1522, Ratchet; 1523, Second rotating shaft; 16, Compensation assembly; 161, Mounting cylinder; 162, Sliding element; 1621, Moving block; 1622, Slide rod; 1623, Fifth elastic element; 1624, Detection rod; 1625, Moving groove; 163, Support element; 1631, Mounting block; 1632, L-shaped plate; 1633, Second rack; 1634, Connecting rod; 1635, Compensation block; 17, Compensation cover; 171, Elastic shell; 172, Protruding rib; 18, Base; 2, Operating table; 3, Mounting table. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: Figures 1-9 As shown, the present invention provides a technical solution: a screw cap preparation device for an experimental glass desiccator with self-sealing compensation includes a centrifugal forming device 1. A driving component is installed on one side of the centrifugal forming device 1, and the driving component is connected to a controller. The driving component is a motor. In use, the glass molten material is manually placed into the centrifugal forming device 1, and the motor is controlled to drive the centrifugal forming device 1 to rotate, thereby centrifugally forming the glass molten material.

[0023] The centrifugal molding device 1 includes a base 18, a drive component mounted on one side of the base 18, a housing 12 mounted on the base 18, a cavity 11 mounted inside the housing 12, a compensation cavity 13 between the housing 12 and the cavity 11, a detection component 14 mounted inside the compensation cavity 13, a trigger component 15 mounted on one side of the detection component 14, a compensation component 16 mounted on one side of the trigger component 15, and a compensation cover 17 mounted on the outer wall of the cavity 11. In use, a control motor drives the base 18 to rotate, the base 18 drives the housing 12 to rotate, and the housing 12 drives the cavity 11 to rotate. The detection component 14 detects the deformation of the cavity 11. When an abnormally large deformation is detected at a certain point compared to other areas, the detection component 14 drives the trigger component 15 to move, the trigger component 15 drives the compensation component 16 to move, the compensation component 16 presses against the compensation cover 17, and the compensation cover 17 presses against the cavity 11, supporting the abnormally deformed area and slowing down the continued expansion of wear at that point.

[0024] The detection assembly 14 includes a transmission element 141, which is mounted on the housing 12. A limit ring 143 is installed on the transmission element 141, and a differential ring 142 is slidably installed inside the limit ring 143. When a certain area of ​​the cavity 11 is worn, the differential ring 142 moves away from this area, and the differential ring 142 drives the transmission element 141 to move.

[0025] The trigger assembly 15 includes an active element 151, and a driven element 152 is mounted on one side of the active element 151. The active element 151 and the driven element 152 rotate within the compensation cavity 13. When a certain area of ​​the cavity 11 is worn, the transmission element 141 drives the active element 151 to move, and the active element 151 drives the driven element 152 to move.

[0026] The compensation assembly 16 includes a mounting cylinder 161, which is mounted on the outer casing 12. A sliding element 162 is slidably mounted inside the mounting cylinder 161, and a support element 163 is slidably mounted inside the sliding element 162. When a certain area of ​​the cavity 11 is worn, the driven element 152 drives the support element 163 to move, and the support element 163 presses against the compensation cover 17 to support that area.

[0027] The transmission element 141 includes a fixed ring 1411, which is mounted on the housing 12. A sliding groove is provided on the fixed ring 1411, and a push rod 1412 is slidably mounted within the sliding groove. A first rack 1413 is mounted on one side of the push rod 1412. A limit block is mounted on the push rod 1412, and a first elastic element 1414 is mounted on the limit block. The first elastic element 1414 is sleeved on the push rod 1412, and its other end is mounted on the sliding groove. The first elastic element 1414 is a first spring. The differential ring 142 drives the push rod 1412 in this direction to move away from the compensation cover 17 within the sliding groove, and the push rod 1412 drives the first rack 1413 to move away from the compensation cover 17.

[0028] The differential ring 142 includes an arc-shaped plate 1421, which slides within a limiting ring 143. A contact block 1422 is installed on the inner side of the arc-shaped plate 1421, and the contact block 1422 abuts against the compensation cover 17. A second elastic member 1423 is installed on the outer side of the arc-shaped plate 1421, and a moving ring 1424 is installed at one end of the second elastic member 1423. The second elastic element 1423 is a second spring. When working, the cavity 11 deforms, which causes the compensation cover 17 to deform. The compensation cover 17 causes the contact block 1422 to move away from the compensation cover 17 within the limiting ring 143. The contact block 1422 causes the arc plate 1421 to move away from the compensation cover 17. The arc plate 1421 causes the second spring to compress. When a certain area of ​​the cavity 11 is worn, the deformation of that area increases, the moving distance of the contact block 1422 in that area increases compared to other areas, the moving distance of the arc plate 1421 in that area also increases, and the force on the moving ring 1424 in that area will be greater, thus causing the moving ring 1424 to move away from that area.

[0029] The active element 151 includes a first rotating shaft 1512, a first support plate mounted on the housing 12, the first rotating shaft 1512 rotating on the first support plate, a first gear 1511 mounted on one side of the first rotating shaft 1512, the first gear 1511 meshing with a first rack 1413, a rotating wheel 1513 mounted on the other side of the first rotating shaft 1512, a pawl 1514 rotatably mounted on the outer side of the rotating wheel 1513, a third elastic element 1517 mounted on one side of the pawl 1514, a mounting post 1516 mounted on one side of the third elastic element 1517, a base plate 1515 mounted on one side of the mounting post 1516, the base plate 1515 sliding within the rotating wheel 1513, a fourth elastic element 1518 mounted on the base plate 1515, the fourth elastic element 1518 sleeved on the mounting post 1516, and the other side of the fourth elastic element 1518 mounted within the rotating wheel 1513. The third elastic element 1517 is the third spring, and the fourth elastic element 1518 is the fourth spring. The first rack 1413 drives the first gear 1511 to rotate, the first gear 1511 drives the first rotating shaft 1512 to rotate, the first rotating shaft 1512 drives the rotating wheel 1513 to rotate, and the mounting column 1516 moves away from the first rotating shaft 1512 under the action of centrifugal force. The mounting column 1516 drives the third spring to move away from the first rotating shaft 1512, and the third spring drives the pawl 1514 to fully unfold.

[0030] Driven element 152 includes a second gear 1521, a second rotating shaft 1523 mounted on one side of the second gear 1521, and a second support plate mounted on the housing 12. The second rotating shaft 1523 rotates on the second support plate. A ratchet 1522 is mounted on the inner side of the second gear 1521, and the ratchet 1522 meshes with a pawl 1514. When the rotating wheel 1513 rotates, the pawl 1514 abuts against the ratchet 1522, causing the ratchet 1522 to rotate. The ratchet 1522 then drives the second gear 1521 to rotate. When the rotating wheel 1513 rotates in the reverse direction, the pawl 1514 slides on the ratchet 1522.

[0031] The sliding element 162 includes a moving block 1621 with a moving groove 1625. A detection rod 1624 is mounted on the moving block 1621 and rests against the compensation cover 17. A sliding rod 1622 is mounted on one side of the moving block 1621 and slides within the mounting cylinder 161. A fifth elastic element 1623 is mounted on one side of the sliding rod 1622 and is mounted on the mounting cylinder 161. The fifth elastic element 1623 is a fifth spring. During operation, the deformation of the compensation cover 17 causes the detection rod 1624 to move away from the compensation cover 17. The detection rod 1624 then causes the moving block 1621 to move away from the compensation cover 17, and the moving block 1621 causes the sliding rod 1622 to move away from the compensation cover 17, thus maintaining a certain distance between the compensation block 1625 and the compensation cover 17.

[0032] The support element 163 includes a mounting block 1631 that slides within a movable block 1621. An L-shaped plate 1632 is mounted on one side of the mounting block 1631. A second rack 1633 is mounted on the L-shaped plate 1632 and meshes with a second gear 1521. A connecting rod 1634 is mounted on the mounting block 1631. A compensation block 1635 is mounted on one side of the connecting rod 1634. A sixth elastic member is sleeved on the outer side of the connecting rod 1634. One side of the sixth elastic member is mounted on the mounting block 1631, and the other side of the sixth elastic member is mounted on the movable block 1621. The sixth elastic element is the sixth spring. When the second gear 1521 rotates, the second gear 1521 drives the second rack 1633 to move towards the compensation cover 17 within the moving block 1621. The second rack 1633 drives the L-shaped plate 1632 to move towards the compensation cover 17. The L-shaped plate 1632 drives the mounting block 1631 to move towards the compensation cover 17. The mounting block 1631 drives the connecting rod 1634 to move towards the compensation cover 17. The connecting rod 1634 drives the compensation block 1635 to press on the compensation cover 17. The compensation cover 17 presses on the cavity 11.

[0033] The compensation cover 17 includes an elastic shell 171, which is installed on the outside of the cavity 11. A rib 172 is installed on the inner wall of the elastic shell 171, and the rib 172 abuts against the cavity 11. The compensation block 1635 presses against the elastic shell 171, and the rib 172 of the elastic shell 171 presses against the cavity 11. The pressure exerted by the rib 172 on the cavity 11 ensures that the cavity 11 is subjected to uniform force.

[0034] The glass dryer screw cap preparation device also includes an operating table 2, a base 18 installed on one side of the operating table 2, a drive unit installed on the other side of the operating table 2, and a mounting platform 3 installed on the operating table 2. A cooling fan is installed on the mounting platform 3 and connected to the control system. During molding, the cooling fan is activated to cool and shape the molten glass.

[0035] Working principle of the invention: In use, the molten glass is manually placed into the cavity 11, and the motor drives the base 18 to rotate. The base 18 drives the outer shell 12 to rotate, and the outer shell 12 drives the cavity 11 to rotate, centrifugally molding the molten glass. During rotation, the cavity 11 deforms under the pressure of the molten glass, causing the compensation cover 17 to deform. The compensation cover 17 causes the contact block 1422 to move away from the compensation cover 17 within the limiting ring 143. The contact block 1422 causes the arc plate 1421 to move away from the compensation cover 17. The arc plate 1421 causes the second spring to compress. At the same time, the deformation of the compensation cover 17 causes the detection rod 1624 to move away from the compensation cover 17. The detection rod 1624 causes the moving block 1621 to move away from the compensation cover 17. The moving block 1621 causes the sliding rod 1622 to move away from the compensation cover 17, maintaining a certain distance between the compensation block 1635 and the compensation cover 17.

[0036] When a certain area of ​​cavity 11 is worn, the deformation of that area increases, the moving distance of the contact block 1422 in that area increases compared to other areas, the moving distance of the arc plate 1421 in that area also increases, and the force on the moving ring 1424 in that area will be greater. As a result, the moving ring 1424 moves away from that area. The moving ring 1424 drives the push rod 1412 in that direction to move away from the compensation cover 17 in the sliding groove. The push rod 1412 drives the first rack 1413 to move away from the compensation cover 17. The first rack 1413 drives the first gear 1511 to rotate. The first gear 1511 drives the first rotating shaft 1512 to rotate. The first rotating shaft 1512 drives the rotating wheel 1513 to rotate. Under the action of centrifugal force, the mounting column 1516 moves away from the first rotating shaft 1512. The mounting column 1516 drives the third spring to move away from the first rotating shaft 1512. The third spring drives the pawl 1514 to fully unfold.

[0037] When the pawl 1514 is fully extended, it is completely pressed against the ratchet 1522. The pawl 1514 drives the ratchet 1522 to rotate, which in turn drives the second gear 1521 to rotate. The second gear 1521 drives the second rack 1633 to move closer to the compensation cover 17 within the moving block 1621. The second rack 1633 drives the L-shaped plate 1632 to move closer to the compensation cover 17, and the L-shaped plate 1632 drives the mounting block 1631 to move closer to the compensation cover 17. When the installation block 1631 moves, it drives the connecting rod 1634 to move closer to the compensation cover 17. The connecting rod 1634 drives the compensation block 1635 to press on the compensation cover 17, and the compensation cover 17 presses on the cavity 11, supporting the cavity 11 at this point, suppressing deformation, compensating for weak sealing at this point, making the force on the cavity 11 more uniform, reducing stress concentration at this point, and extending the service life of the cavity 11. When molding, the cooling fan is started to cool the glass melt.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for preparing a screw cap for an experimental glass desiccator with self-sealing compensation, characterized in that: Includes a centrifugal forming device (1), a driving component is installed on one side of the centrifugal forming device (1), and the driving component is connected to a controller; The centrifugal molding device (1) includes a base (18), the driving component is installed on one side of the base (18), a housing (12) is installed on the base (18), a cavity (11) is installed inside the housing (12), a compensation cavity (13) is provided between the housing (12) and the cavity (11), a detection component (14) is installed inside the compensation cavity (13), a trigger component (15) is installed on one side of the detection component (14), a compensation component (16) is installed on one side of the trigger component (15), and a compensation cover (17) is installed on the outer wall of the cavity (11). The detection component (14) includes a transmission element (141) which is mounted on the housing (12). A limit ring (143) is mounted on the transmission element (141), and a differential ring (142) is slidably mounted inside the limit ring (143).

2. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 1, characterized in that: The triggering assembly (15) includes an active element (151), and a driven element (152) is mounted on one side of the active element (151). The active element (151) and the driven element (152) rotate within the compensation cavity (13). The compensation component (16) includes a mounting cylinder (161) which is mounted on the outer shell (12). A sliding element (162) is slidably mounted inside the mounting cylinder (161), and a support element (163) is slidably mounted inside the sliding element (162).

3. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 2, characterized in that: The transmission element (141) includes a fixed ring (1411) which is mounted on the outer shell (12). The fixed ring (1411) is provided with a sliding groove, and a push rod (1412) is slidably mounted in the sliding groove. A first rack (1413) is mounted on one side of the push rod (1412). A limit block is mounted on the push rod (1412), and a first elastic element (1414) is mounted on the limit block. The first elastic element (1414) is sleeved on the push rod (1412), and the other end of the first elastic element (1414) is mounted on the sliding groove.

4. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 3, characterized in that: The differential ring (142) includes an arc plate (1421) that slides within a limiting ring (143). A contact block (1422) is installed on the inner side of the arc plate (1421) and abuts against the compensation cover (17). A second elastic element (1423) is installed on the outer side of the arc plate (1421) and a moving ring (1424) is installed at one end of the second elastic element (1423).

5. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 3, characterized in that: The active element (151) includes a first rotating shaft (1512), a first support plate is mounted on the housing (12), the first rotating shaft (1512) rotates on the first support plate, a first gear (1511) is mounted on one side of the first rotating shaft (1512), the first gear (1511) meshes with a first rack (1413), a rotating wheel (1513) is mounted on the other side of the first rotating shaft (1512), and a pawl (1514) is rotatably mounted on the outer side of the rotating wheel (1513). A third elastic element (1517) is installed on one side of the third elastic element (1517), a mounting post (1516) is installed on one side of the third elastic element (1517), a base plate (1515) is installed on one side of the mounting post (1516), the base plate (1515) slides in the rotating wheel (1513), a fourth elastic element (1518) is installed on the base plate (1515), the fourth elastic element (1518) is sleeved on the mounting post (1516), and the other side of the fourth elastic element (1518) is installed in the rotating wheel (1513).

6. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 5, characterized in that: The driven element (152) includes a second gear (1521), a second rotating shaft (1523) is mounted on one side of the second gear (1521), a second support plate is mounted on the housing (12), the second rotating shaft (1523) rotates on the second support plate, a ratchet (1522) is mounted on the inner side of the second gear (1521), and the ratchet (1522) meshes with a pawl (1514).

7. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 6, characterized in that: The sliding element (162) includes a moving block (1621), a moving groove (1625) is provided on the moving block (1621), a detection rod (1624) is installed on the moving block (1621), the detection rod (1624) abuts against the compensation cover (17), a slide rod (1622) is installed on one side of the moving block (1621), the slide rod (1622) slides in the mounting cylinder (161), a fifth elastic element (1623) is installed on one side of the slide rod (1622), and one side of the fifth elastic element (1623) is installed on the mounting cylinder (161).

8. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 7, characterized in that: The support element (163) includes a mounting block (1631) that slides within a movable block (1621). An L-shaped plate (1632) is mounted on one side of the mounting block (1631), and a second rack (1633) is mounted on the L-shaped plate (1632). The second rack (1633) meshes with a second gear (1521). A connecting rod (1634) is mounted on the mounting block (1631), and a compensation block (1635) is mounted on one side of the connecting rod (1634). A sixth elastic element is sleeved on the outer side of the connecting rod (1634), with one side of the sixth elastic element mounted on the mounting block (1631) and the other side of the sixth elastic element mounted on the movable block (1621).

9. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 1, characterized in that: The compensation cover (17) includes an elastic shell (171) which is installed on the outside of the cavity (11). A rib (172) is installed on the inner wall of the elastic shell (171) and the rib (172) abuts against the cavity (11).

10. The apparatus for preparing a screw cap for an experimental glass desiccator with self-sealing compensation according to claim 1, characterized in that: The glass dryer screw cap preparation device also includes an operating table (2), the base (18) is installed on one side of the operating table (2), the driving component is installed on the other side of the operating table (2), the operating table (2) is equipped with an installation platform (3), the installation platform (3) is equipped with a cooling fan, and the cooling fan is connected to the control system.

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