Bottle cap mold and thread demolding device

Abstract

The application relates to the technical field of injection molds, in particular to a bottle cap mold and a threaded demolding device, which comprises a fixed mold and a first movable mold plate, a plurality of first fixed mold cores are arranged on the fixed mold, a first movable mold is arranged on the first movable mold plate, a plurality of first threaded cores matched with the first fixed mold cores are arranged on the first movable mold plate, the first threaded cores penetrate through the first movable mold and are rotationally connected with the first movable mold, a first containing cavity is arranged in the first movable mold, a first pressing assembly for pressing a bottle cap is arranged in the first containing cavity, a cavity is arranged in the fixed mold, a first mounting plate is arranged in the cavity, the first mounting plate is in sliding fit with the cavity, and a first pushing assembly for pushing the bottle cap is arranged on the first mounting plate. The application has the action of facilitating demolding of the bottle cap.

Description

Technical Field

[0001] This application relates to the field of injection mold technology, and in particular to a bottle cap mold and a threaded demolding device. Background Technology

[0002] The bottle cap has internal threads on its inner wall and anti-slip textures arranged circumferentially parallel to its axis on its outer wall. A threaded core is typically used in the injection mold to form these internal threads. To facilitate demolding, the threaded core is usually made as a movable insert, and a demolding device is installed on the mold. During mold opening, as the fixed and moving molds separate, the demolding device rotates the threaded core, separating it from the bottle cap.

[0003] However, during the demolding process where the threaded core rotates to demold, the anti-slip texture limits the bottle cap to prevent relative rotation between the bottle cap and the injection mold. When the relative movement speed between the fixed mold and the moving mold is fast, the bottle cap may separate from the injection mold before the threaded core has unscrewed out. This causes the bottle cap to rotate along with the threaded core, making it difficult to separate the bottle cap from the threaded core and thus making it difficult to demold the bottle cap. Summary of the Invention

[0004] To facilitate the demolding of bottle caps, this application provides a bottle cap mold and a threaded demolding device.

[0005] On one hand, the bottle cap mold provided in this application adopts the following technical solution: A bottle cap mold includes a fixed mold and a first movable mold plate. The fixed mold is provided with a plurality of first fixed mold cores. The first movable mold plate is provided with a first movable mold. The first movable mold plate is provided with a plurality of first threaded cores that cooperate with the first fixed mold cores. The first threaded cores penetrate the first movable mold and are rotatably connected to the first movable mold. The first movable mold is provided with a first receiving cavity. The first receiving cavity is provided with a first pressing component for pressing the bottle cap. The fixed mold is provided with a cavity. The cavity is provided with a first mounting plate. The first mounting plate is slidably engaged with the cavity. The first mounting plate is provided with a first pushing component for pushing the bottle cap.

[0006] By adopting the above technical solution, during demolding, the fixed mold moves away from the moving mold, and the first pressing component applies pressure to the bottle cap towards the fixed mold, so that the bottle cap remains in the first fixed mold core. Then, by rotating the first threaded core, the first threaded core and the bottle cap are displaced relative to each other, so that the first threaded core is completely separated from the bottle cap. When the fixed mold moves to the point where the first pressing component separates from the bottle cap, the bottle cap is pushed out of the first fixed mold core by the pushing action of the first pushing component, which facilitates the demolding of the bottle cap.

[0007] In one specific implementation, the first pressing assembly includes a pressing block and a pressing rod. The pressing rod is disposed in a first receiving cavity. The pressing block is disposed at the end of the pressing rod near the fixed mold. A limiting plate is provided at the end of the pressing rod away from the pressing block. The limiting plate is disposed in the first receiving cavity and slides with the first receiving cavity. A pressing spring is provided in the first receiving cavity. One end of the pressing spring contacts the limiting plate, and the other end contacts the inner wall of the first receiving cavity.

[0008] By adopting the above technical solution, when the mold is closed, the first moving mold moves toward the fixed mold side, and the fixed mold applies pressure to the pressing block and pressing rod, causing the pressing spring to contract; when the mold is demolded, the first moving mold separates from the fixed mold, the pressing spring returns to its original position, and the pressing spring applies pressure to the bottle cap toward the fixed mold side, so that the bottle cap can remain in the fixed mold first during the demolding process, making it easier for the first threaded core to separate from the bottle cap, and the operation is convenient.

[0009] In one specific implementation scheme, the first mounting plate is provided with a push rod and a push block. The push rod is located on the side of the first mounting plate facing the first moving mold, and the push block is located at the end of the push rod facing the first moving mold. The first fixed mold has a groove for accommodating the push block. The bottom wall of the first mounting plate is provided with a push spring for supporting the first mounting plate. The first push assembly is located on the side of the first mounting plate facing the first moving mold.

[0010] By adopting the above technical solution, when the mold is closed, the first moving mold applies pressure to the pushing block and the pushing rod, thereby driving the first mounting plate to compress the pushing spring. When the mold is demolded, the first moving mold separates from the fixed mold, the pushing spring resets, and the pushing spring drives the first mounting plate and the first pushing assembly to move toward the first moving mold. The first mounting plate drives the pushing assembly to move toward the first moving mold. Thus, when the pressing block separates from the bottle cap, the pushing assembly can push the bottle cap out of the fixed mold, which facilitates the discharge of the bottle cap.

[0011] In one specific implementation, the first pushing component includes a discharge block and a discharge spring. The first fixed mold core has a slot for limiting the discharge block. One end of the discharge spring is connected to the first mounting plate, and the other end is connected to the discharge block.

[0012] By adopting the above technical solution, when the mold is closed, the slot limits the ejector block, which helps to avoid the first mounting plate from bringing the ejector block into the cavity as much as possible; when the mold is demolded, the spring is pushed back to reset, which drives the ejector spring and the ejector block to push the bottle cap out of the fixed mold, which facilitates the ejection of the bottle cap.

[0013] In one specific implementation scheme, the fixed mold has a plurality of second fixed mold cores on the side opposite to the first moving mold, and a second moving mold plate is provided on the side of the fixed mold away from the first moving mold. The second moving mold plate is provided with a plurality of second threaded cores that cooperate with the second fixed mold cores. The second threaded cores penetrate the second moving mold and are rotatably connected to the second moving mold. A second mounting plate is provided in the cavity. A second receiving cavity is provided in the second moving mold. A second pressing component for pressing the bottle cap is provided in the second receiving cavity. A cavity is provided in the fixed mold. A second mounting plate is provided in the cavity. The second mounting plate is slidably engaged with the cavity. A second pushing component for pushing the bottle cap is provided on the second mounting plate.

[0014] By adopting the above technical solution, when demolding the bottle cap in the first fixed mold core, the fixed mold moves away from the first moving mold and moves closer to the second moving mold. When the fixed mold and the second moving mold are in contact, the bottle cap in the second fixed mold core can be injection molded at the same time as the bottle cap in the first fixed mold core is demolded, which helps to improve production efficiency. Similarly, when demolding the bottle cap in the second fixed mold core, the bottle cap can be injection molded in the first fixed mold core, which helps to improve demolding efficiency.

[0015] On the other hand, this application provides a threaded demolding device applied to the above-mentioned bottle cap mold, including a driving component and a transmission mechanism. The driving component is connected to the transmission mechanism and is used to drive the transmission mechanism. The driving component is mounted on a fixed mold. The transmission mechanism includes a first transmission component and a second transmission component. The first transmission component is disposed on a first moving mold and is used to drive a first threaded core to rotate. The second transmission component is disposed on a second moving mold and is used to drive a second threaded core to rotate.

[0016] By adopting the above technical solution, the driving component drives the first threaded core to rotate through the first transmission component, which facilitates the separation of the first threaded core from the bottle cap; the driving component drives the second threaded core to rotate through the second transmission component, which facilitates the separation of the second threaded core from the bottle cap, thus helping to improve demolding efficiency.

[0017] In one specific implementation scheme, a fixed plate is provided on one side of the fixed mold, a mounting seat is provided on the fixed plate, a rotating shaft is rotatably connected to the mounting seat, the driving assembly includes a rack and a driving gear, the rack is provided on the side wall of the fixed mold, the driving gear is provided on the rotating shaft, the driving gear meshes with the rack, and an active bevel gear is provided on the rotating shaft for driving the transmission mechanism to rotate.

[0018] By adopting the above technical solution, when the fixed mold separates from the first moving mold, it drives the rack to move, the rack drives the drive gear and the active bevel gear to rotate, and the active bevel gear drives the first transmission component to move. This helps to drive the first threaded core to rotate while the fixed mold and the first fixed mold are separated, which helps to improve the demolding efficiency.

[0019] In one specific implementation, the first transmission assembly includes a first bevel gear and a first sprocket. The first moving mold is provided with a first transmission shaft. The first bevel gear is disposed at one end of the first transmission shaft, and the first sprocket is disposed at the other end of the first transmission shaft. The first bevel gear is used to mesh with a driving bevel gear. The first moving mold is provided with a first linkage shaft, and the first linkage shaft is provided with a second sprocket. The first sprocket and the second sprocket are connected in a driving connection. The second sprocket is connected in a driving connection with the first threaded core.

[0020] By adopting the above technical solution, the active bevel gear drives the first bevel gear and the first sprocket to rotate, the first sprocket drives the second sprocket to rotate, and the second sprocket drives the first threaded core to rotate, which helps to realize remote transmission between the drive component and the first threaded core, and the transmission efficiency is high.

[0021] In one specific implementation scheme, the first moving mold is provided with a linkage component for driving the rotation of multiple first threaded cores.

[0022] By adopting the above technical solution and setting up linkage components, multiple bottle caps can be demolded simultaneously, which helps to further improve demolding efficiency.

[0023] In one specific implementation, the linkage assembly includes a linkage wheel, multiple transmission wheels, and multiple demolding wheels. The linkage wheel is disposed on a first linkage shaft, the transmission wheels are disposed on a first moving mold, the linkage wheel meshes with the multiple transmission wheels, and the demolding wheels are disposed on a first threaded core. Each of the transmission wheels meshes with the multiple demolding wheels.

[0024] By adopting the above technical solution, multiple transmission wheels are driven to rotate by the linkage wheel, and the transmission wheels drive multiple demolding wheels to rotate, thereby driving multiple first threaded cores to rotate simultaneously, which helps to improve transmission efficiency and further improve demolding efficiency.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By setting the first pressing component, the bottle cap can be pressed into the fixed mold, the first threaded core can be separated from the bottle cap, and then the bottle cap can be pushed out of the fixed mold by the first pushing component, which facilitates the discharge of the bottle cap;

[0027] 2. By setting up a second moving mold and a second moving template, the production efficiency and demolding efficiency of bottle cap molds can be improved;

[0028] 3. By setting up a linkage component, multiple bottle caps can be demolded simultaneously, which helps to further improve demolding efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 2 This is a cross-sectional view of the internal structure of the bottle cap mold in an embodiment of this application.

[0031] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0032] Figure 4 This is a cross-sectional view of the internal structure of the mold in the embodiment of this application.

[0033] Figure 5 This is a schematic diagram of the overall structure of the thread demolding device in the embodiments of this application.

[0034] Figure 6 This is a schematic diagram of the structure of the driving component and the linkage component in the embodiments of this application.

[0035] Figure 7 This is a schematic diagram of the linkage component in the embodiments of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Fixed mold; 11. First fixed mold core; 12. First moving mold plate; 13. First moving mold; 14. First threaded core; 15. First cavity; 16. Second moving mold plate; 17. Second moving mold; 18. Second fixed mold core; 19. Second threaded core; 20. Second cavity; 2. First pressing assembly; 21. Pressing block; 22. Pressing rod; 23. Limiting plate; 24. Pressing spring; 25. First receiving cavity; 3. First pushing assembly; 30. Second pushing assembly; 31. Cavity; 32. First mounting plate; 33. Second mounting plate; 34. Push spring; 35. Push 36. Moving rod; 37. Pushing block; 38. Discharge block; 39. Discharge spring; 4. Slot; 5. Drive assembly; 41. Fixing plate; 42. Mounting base; 44. Rack; 45. Drive gear; 5. Transmission mechanism; 51. First transmission assembly; 52. Second transmission assembly; 53. First bevel gear; 54. First sprocket; 55. Mounting block; 57. Drive bevel gear; 58. First linkage shaft; 59. Second sprocket; 60. Chain; 61. Linkage assembly; 62. Linkage wheel; 63. Transmission wheel; 7. Second receiving cavity; 71. Second pressing assembly. Detailed Implementation

[0038] The present application will be further described in detail below with reference to the accompanying drawings.

[0039] This application discloses a bottle cap mold, as shown in the embodiments below. Figure 1 and Figure 2The bottle cap mold includes a fixed mold 1, on which multiple first fixed mold cores 11 are fixed. A first movable mold plate 12 is provided on one side of the fixed mold 1, and a first movable mold 13 is fixed on the first movable mold plate 12. The first movable mold plate 12 is provided with multiple first threaded cores 14 that mate with the first fixed mold cores 11. The first threaded cores 14 pass through the first movable mold 13 and are rotatably connected to the first movable mold 13. A first cavity 15 for forming a bottle cap is provided between the first threaded cores 14 and the first fixed mold cores 11. On the side of the fixed mold 1 away from the first movable mold plate 12, multiple second fixed mold cores 18 are provided. A second movable mold plate 16 is provided on one side of the second fixed mold cores 18, and a second movable mold 17 is fixed on the second movable mold plate 16. The second movable mold 17 is provided with multiple second threaded cores 19 that mate with the second fixed mold cores 18. The second threaded cores 19 pass through the second movable mold 17 and are rotatably connected to the second movable mold 17. A second cavity 20 for forming a bottle cap is provided between the second threaded cores 19 and the second fixed mold cores 18.

[0040] Reference Figure 2 and Figure 3 The first moving mold 13 has a first receiving cavity 25, and the first receiving cavity 25 has a first pressing component 2 for pressing the bottle cap; the second moving mold 17 has a second receiving cavity 7, and the second receiving cavity 7 has a second pressing component 71 for pressing the bottle cap. The first pressing component 2 and the second pressing component 71 have the same structure. Taking the first pressing component 2 as an example, the first pressing component 2 includes a pressing block 21 and a pressing rod 22. The pressing rod 22 is disposed in the first receiving cavity 25. The pressing block 21 is fixed to one end of the pressing rod 22 near the fixed mold 1. The other end of the pressing rod 22 is fixed with a limiting plate 23. The limiting plate 23 is disposed in the first receiving cavity 25 and slides in cooperation with the first receiving cavity 25. The first receiving cavity 25 has a pressing spring 24. One end of the pressing spring 24 contacts the limiting plate 23, and the other end contacts the inner wall of the first receiving cavity 25. During mold closing, the first moving mold 13 moves closer to the fixed mold 1, and the fixed mold 1 applies pressure to the pressing block 21, causing the pressing spring 24 to contract. During demolding, the fixed mold 1 moves away from the first moving mold 13, and the fixed mold 1 drives the first threaded core 14 to rotate. The pressing spring 24 returns to its original position and applies pressure to the bottle cap towards the fixed mold 1, so that the bottle cap remains in the first cavity 15, making it easier for the first threaded core 14 to be removed from the bottle cap.

[0041] Reference Figure 2 and Figure 4The fixed mold 1 has a cavity 31, within which a first mounting plate 32 and a second mounting plate 33 are mounted. Several push springs 34 are positioned between the first and second mounting plates 32 and 33, with one end of each spring fixed to the first mounting plate 32 and the other end fixed to the second mounting plate 33. A guide plate 8 is fixed within the cavity 31, and a dovetail groove is formed on the guide plate 8. A first dovetail block is integrally formed on the side wall of the first mounting plate 32, slidingly engaging with the dovetail groove to limit the movement of the first mounting plate 32 and ensure stable movement. A second dovetail block is integrally formed on the second mounting plate 33, slidingly engaging with the dovetail groove to limit the movement of the second mounting plate 33 and ensure stable movement. A push rod 35 and a push block 36 are provided on the first mounting plate 32. The push rod 35 is fixed to the first mounting plate 32, and the push block 36 is fixed at the end of the push rod 35 away from the first mounting plate 32. The fixed mold 1 has a groove for accommodating the push block 36. When the mold is closed, the push block 36 is fitted into the groove, and the side wall of the push block 36 facing the first moving mold 13 is exactly on the same plane as the side wall of the fixed mold 1 facing the first moving mold 13. The first mounting plate 32 has a first push assembly 3 on the side facing the first moving mold 13, and the second mounting plate 33 has a second push assembly 30 for pushing the bottle cap on the side facing the second moving mold 17. The first push assembly 3 and the second push assembly 30 have the same structure. Taking the first push assembly 3 as an example, the first push assembly 3 includes a discharge block 37 and a discharge spring 38 (the stiffness coefficient of the discharge spring 38 is less than that of the pressing spring 24). The first fixed mold core 11 has a slot 39 for limiting the discharge block 37. The slot 39 fits into the discharge block 37, preventing the discharge block 37 from entering the cavity 31. One end of the discharge spring 38 is fixedly connected to the first mounting plate 32, and the other end is fixedly connected to the discharge block 37. In the unclosed mold state, such as Figure 4 As shown, the sidewall of the ejector block 37 facing the first moving mold 13 is flush with the sidewall of the first cavity 15.

[0042] Reference Figure 2 and Figure 4 During mold closing, the first moving mold 13 applies pressure to the pushing block 36, causing the spring 34 to contract. The slot 39 limits the ejector block 37. After injection molding, the fixed mold 1 moves away from the first moving mold 13, separating the first moving mold 13 from the fixed mold 1. The pushing spring 34 returns to its original position, and the pushing spring 34 pushes the first mounting plate 32 towards the side closer to the first moving mold 13. When the pressing block 21 separates from the bottle cap, the first mounting plate 32 drives the ejector block 37 towards the side closer to the first moving mold 13. The ejector block 37 pushes the bottle cap out of the first cavity 15, realizing the ejection of the bottle cap. At the same time, the fixed mold 1 and the second moving mold 17 fit together, realizing the injection molding of the bottle cap in the second cavity 20, which helps to improve production efficiency.

[0043] Reference Figure 5 and Figure 6 This application also discloses a threaded demolding device, applied to the aforementioned bottle cap mold, for demolding the bottle cap. The threaded demolding device includes a drive assembly 4 and a transmission mechanism 5, which are connected in a transmission manner. The drive assembly 4 drives the transmission mechanism 5. A fixed plate 41 is provided on one side of the fixed mold 1, and a mounting base 42 is fixed on the fixed plate 41. A rotating shaft is rotatably connected to the mounting base 42. The drive assembly 4 includes a rack 44 and a drive gear 45. The rack 44 is fixed on the top wall of the fixed mold 1, and the drive gear 45 is coaxially fixed on the rotating shaft. The drive gear 45 meshes with the rack 44. A driving bevel gear 57 is coaxially fixed at the end of the rotating shaft away from the drive gear 45. During demolding, the fixed mold 1 moves away from the first moving mold 13. The fixed mold 1 drives the rack 44 to move, and the rack 44 drives the drive gear 45 to rotate. The drive gear 45 drives the driving bevel gear 57 to rotate through the rotating shaft.

[0044] Reference Figure 5 and Figure 6 The transmission mechanism 5 includes a first transmission component 51 and a second transmission component 52. The first transmission component 51 is fixed on the first moving mold 13 and is used to drive the first threaded core 14 to rotate. The second transmission component 52 is fixed on the second moving mold 17 and is used to drive the second threaded core 19 to rotate. The first transmission component 51 and the second transmission component 52 have the same structure. Taking the first transmission component 51 as an example, the first transmission component 51 includes a first bevel gear 53 and a first sprocket 54. A mounting block 55 is fixed on the first moving mold 13. A first transmission shaft is rotatably connected to the mounting block 55. The first transmission shaft is perpendicular to the rotating shaft. The first bevel gear 53 is coaxially fixed to one end of the first transmission shaft near the driving bevel gear 57. The first bevel gear 53 meshes with the driving bevel gear 57. The first sprocket 54 is coaxially fixed at the end of the first drive shaft away from the first bevel gear 53. The first moving mold 13 is rotatably connected to the first linkage shaft 58. The first linkage shaft 58 is coaxially fixed to the second sprocket 59. The first sprocket 54 and the second sprocket 59 are connected by a chain 60. The first linkage shaft 58 is connected to the first threaded core 14.

[0045] Reference Figure 5 and Figure 6 During demolding, the fixed mold 1 drives the rack 44 to move away from the first moving mold 13. The rack 44 drives the drive gear 45 and the active bevel gear 57 to rotate. The active bevel gear 57 drives the first bevel gear 53 and the first sprocket 54 to rotate. The first sprocket 54 drives the second sprocket 59 and the first linkage shaft 58 to rotate via the chain 60, thereby driving the first threaded core 14 to rotate. Figure 3 During the rotation of the first threaded core 14, the pressing block 21 presses the bottle cap into the first cavity 15, which facilitates the rotation and separation of the first threaded core 14 from the bottle cap.

[0046] Reference Figure 6 and Figure 7 The first moving mold 13 is equipped with a linkage assembly 6 for simultaneously rotating multiple first threaded cores 14. The linkage assembly 6 includes a linkage wheel 61, two transmission wheels 62, and six demolding wheels 63. The linkage wheel 61 is coaxially fixed on the first linkage shaft 58. The transmission wheels 62 are rotatably connected to the first moving mold 13, with one linkage wheel 61 meshing with two transmission wheels 62. All six demolding wheels 63 are coaxially fixed on the first threaded cores 14, and each transmission wheel 62 meshes with three demolding wheels 63. The first sprocket 54 drives the second sprocket 59 to rotate. The second sprocket 59 drives the linkage wheel 61 to rotate via the first linkage shaft 58. The linkage wheel 61 drives the two transmission wheels 62 to rotate simultaneously, and the two transmission wheels 62 drive the six demolding wheels 63 to rotate simultaneously. This allows all six first threaded cores 14 to rotate at once, thus enabling the demolding of six bottle caps at once, which helps improve demolding efficiency.

[0047] The implementation principle of this application embodiment is as follows: During production, the first moving mold 13 moves toward the fixed mold 1, the first moving mold 13 and the fixed mold 1 fit together, the fixed mold 1 applies pressure to the pressing block 21, the pressing spring 24 contracts, and at the same time the first moving mold 13 applies pressure to the pushing block 36, the pushing spring 34 contracts, and the bottle cap is injection molded in the first cavity 15.

[0048] During demolding, the fixed mold 1 moves away from the first moving mold 13, driving the rack 44 to move, which in turn drives the first threaded core 14 to rotate. The pressing spring 24 returns to its original position and pushes the pressing block 21 to press the bottle cap into the first cavity 15. The first threaded core 14 separates from the bottle cap during rotation. After separation, the fixed mold 1 continues to move away from the first moving mold 13 until the pressing block 21 separates from the bottle cap. Then, the spring 34 drives the ejector block 37 to push the bottle cap out of the first cavity 15, thus unloading the bottle cap. When the fixed mold 1 moves away from the first moving mold 13, it fits against the second moving mold 17, and the bottle cap is injection molded in the second cavity 20, which helps to improve production efficiency.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A threaded demolding device for demolding bottle cap molds. The bottle cap mold includes a fixed mold (1) and a first movable mold plate (12). The fixed mold (1) is provided with a plurality of first fixed mold cores (11). The first movable mold plate (12) is provided with a first movable mold (13). The first movable mold plate (12) is provided with a plurality of first threaded cores (14) that cooperate with the first fixed mold cores (11). The first threaded cores (14) penetrate the first movable mold (13) and are rotatably connected to the first movable mold (13). The first movable mold (13) is provided with a first receiving cavity (25). The first receiving cavity (25) is provided with a first pressing component (2) for pressing the bottle cap. The fixed mold (1) is provided with a cavity (31). The cavity (31) is provided with a first mounting plate (32). The first mounting plate (32) is slidably engaged with the cavity (31). The first mounting plate (32) is provided with a first pushing component (3) for pushing the bottle cap. The first pressing assembly (2) includes a pressing block (21) and a pressing rod (22). The pressing rod (22) is disposed in the first receiving cavity (25). The pressing block (21) is disposed at the end of the pressing rod (22) near the fixed mold (1). A limiting plate (23) is provided at the end of the pressing rod (22) away from the pressing block (21). The limiting plate (23) is disposed in the first receiving cavity (25) and slides with the first receiving cavity (25). A pressing spring (24) is provided in the first receiving cavity (25). One end of the pressing spring (24) contacts the limiting plate (23), and the other end contacts the inner wall of the first receiving cavity (25). The first mounting plate (32) is provided with a push rod (35) and a push block (36). The push rod (35) is located on the side of the first mounting plate (32) facing the first moving mold (13), and the push block (36) is located on the end of the push rod (35) facing the first moving mold (13). The fixed mold (1) is provided with a groove for accommodating the push block (36). When the mold is closed, the push block (36) is fitted into the groove. The side wall of the push block (36) facing the first moving mold (13) is exactly on the same plane as the side wall of the fixed mold (1) facing the first moving mold (13). The bottom wall of the first mounting plate (32) is provided with a push spring (34). The push spring (34) is used to support the first mounting plate (32). The first push assembly (3) is located on the side of the first mounting plate (32) facing the first moving mold (13). The first pushing component (3) includes a discharge block (37) and a discharge spring (38). One end of the discharge spring (38) is connected to the first mounting plate (32), and the other end is connected to the discharge block (37). The spring constant of the discharge spring (38) is less than the spring constant of the pressing spring (24). The first fixed mold core (11) is provided with a slot (39) for limiting the discharge block (37). The slot (39) is engaged with the discharge block (37) so that the discharge block (37) cannot enter the cavity (31). The fixed mold (1) has a plurality of second fixed mold cores (18) on the side away from the first moving mold (13). The fixed mold (1) has a second moving mold plate (16) on the side away from the first moving mold (13). The second moving mold plate (16) has a plurality of second threaded cores (19) that cooperate with the second fixed mold cores (18). The second threaded cores (19) penetrate the second moving mold (17) and are rotatably connected to the second moving mold (17). The cavity (31) has a second mounting plate (33). The second moving mold (17) has a second receiving cavity (7). The second receiving cavity (7) has a second pressing component (71) for pressing the bottle cap. The fixed mold (1) has a cavity (31). The cavity (31) has a second mounting plate (33). The second mounting plate (33) is slidably engaged with the cavity (31). The second mounting plate (33) has a second pushing component (30) for pushing the bottle cap. The threaded demolding device includes a drive assembly (4) and a transmission mechanism (5). The drive assembly (4) is connected to the transmission mechanism (5) for transmission. The drive assembly (4) is used to drive the transmission mechanism (5). The drive assembly (4) is mounted on the fixed mold (1). The transmission mechanism (5) includes a first transmission assembly (51) and a second transmission assembly (52). The first transmission assembly (51) is disposed on the first moving mold (13) and is used to drive the first threaded core (14) to rotate. The second transmission assembly (52) is disposed on the second moving mold (17) and is used to drive the second threaded core (19) to rotate.

2. The threaded demolding device according to claim 1, characterized in that: A fixing plate (41) is provided on one side of the fixed mold (1). A mounting base (42) is provided on the fixing plate (41). A rotating shaft is rotatably connected to the mounting base (42). The driving assembly (4) includes a rack (44) and a driving gear (45). The rack (44) is provided on the side wall of the fixed mold (1). The driving gear (45) is provided on the rotating shaft. The driving gear (45) meshes with the rack (44). An active bevel gear (57) is provided on the rotating shaft for driving the transmission mechanism (5) to rotate.

3. A threaded demolding device according to claim 2, characterized in that: The first transmission assembly (51) includes a first bevel gear (53) and a first sprocket (54). The first moving mold (13) is provided with a mounting block (55), and the mounting block (55) is provided with a first transmission shaft. The first bevel gear (53) is disposed on the first transmission shaft and is used to mesh with the driving bevel gear (57). The first sprocket (54) is disposed at the end of the first transmission shaft away from the first bevel gear (53). The first moving mold (13) is provided with a first linkage shaft (58), and the first linkage shaft (58) is provided with a second sprocket (59). The first sprocket (54) and the second sprocket (59) are connected in a transmission manner.

4. A threaded demolding device according to claim 3, characterized in that: The first moving mold (13) is provided with a linkage assembly (6) for driving multiple first threaded cores (14) to rotate.

5. A threaded demolding device according to claim 4, characterized in that: The linkage assembly (6) includes a linkage wheel (61), multiple transmission wheels (62) and multiple demolding wheels (63). The linkage wheel (61) is disposed on the first linkage shaft (58), the transmission wheels (62) are disposed on the first moving mold (13), the linkage wheel (61) meshes with the multiple transmission wheels (62), and the demolding wheels (63) are disposed on the first threaded core (14). Each transmission wheel (62) meshes with the multiple demolding wheels (63).

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