A bottle-making machine and bottle neck-making device for injection vials

Abstract

This invention relates to the technical field of glass bottle manufacturing, specifically to a bottle-making machine and bottle neck forming device for injection bottles. The machine includes a feeding structure, a conveying structure, a primary heating structure, a bottle neck forming structure, a secondary heating structure, and a discharge structure. The feeding structure comprises a rotating shaft seat, a rotating platform, a mounting base, and a clamping module. By configuring the feeding structure as a combination of the rotating shaft seat, rotating platform, mounting base, and clamping module, and configuring the clamping module as a combination of a movable seat, a secondary rotating shaft, and a clamping mechanism, and by installing a force-bearing component at the edge of the rotating shaft seat via a connector, the wedge-shaped groove on the movable seat interacts with the force-bearing component, thereby controlling the separation and engagement of the driven bevel gear and the transmission bevel gear. Thus, a single drive structure can control the driving and stopping of one rotation of the secondary rotating shaft, effectively reducing the use of drive structures on the equipment and facilitating routine maintenance by operators.

Description

Technical Field

[0001] This invention relates to the technical field of glass bottle manufacturing, specifically to a bottle-making machine for injection bottles and a bottle neck-making device. Background Technology

[0002] Chinese patent document CN103539335A discloses a programmable bottle-controlling machine. The solution includes an A-section chuck assembly, a bottle length-fixing mechanism, a neck-controlling mechanism, a B-section chuck assembly, a chuck lifting and opening / closing mechanism, a bottle-dropping mechanism, a heating assembly, and a revolution drive assembly and a rotation drive assembly mounted on the lower part of the machine body, respectively. The A-section chuck assembly is mounted on the machine body via a support sleeve. The bottle length-fixing mechanism and the neck-controlling mechanism are respectively located on the machine body corresponding to the chucks controlled by the A-section chuck assembly. The B-section chuck assembly is located on the machine body to one side of the A-section chuck assembly. The chuck lifting and opening / closing mechanism and the bottle-dropping mechanism are respectively mounted on the opening and closing control mechanism of the chucks controlled by the B-section chuck assembly. The machine body includes a control end and a corresponding bottle forming chuck; it also includes a controller for controlling the revolution drive assembly, the rotation drive assembly, the bottle length fixing mechanism, the necking mechanism, the chuck lifting and opening / closing mechanism, and the bottle dropping mechanism. The output of the controller is connected to the input control terminals of the revolution drive assembly, the rotation drive assembly, the bottle length fixing mechanism, the necking mechanism, the chuck lifting and opening / closing mechanism, and the bottle dropping mechanism, respectively. The outputs of the revolution drive assembly and the rotation drive assembly are connected to the revolution and rotation drive input control terminals of the A-part chuck assembly and the B-part chuck assembly, respectively. The B-part chuck assembly is independently assembled on one side of the A-part chuck assembly, and the upper and lower chucks of the A-part chuck assembly and the B-part chuck assembly are axially aligned.

[0003] However, the above solutions require multiple self-rotating drive assemblies to drive the independent bottle fixing structures, resulting in the equipment requiring a large number of independent drive structures, which leads to inconvenience in daily inspection and maintenance. Therefore, this invention proposes an injection bottle making machine and a bottle mouth making device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an injection vial making machine and a vial neck making device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vial-making machine for injection vials, comprising a feeding structure, a conveying structure, a primary heating structure, a vial neck forming structure, a secondary heating structure, and a discharge structure, wherein the feeding structure includes:

[0006] A pivot seat is fixed to the ground by a support leg, and a primary pivot is rotatably mounted on the pivot seat. A mounting plate is fixedly mounted on the support leg, and a stepper motor is fixedly mounted on the mounting plate.

[0007] A rotating platform is fixedly connected to the upper end of a primary rotating shaft, and the output shaft of the stepper motor is fixedly connected to the lower end of the primary rotating shaft via a coupling.

[0008] Mounting base, wherein the mounting base is an annular seat body;

[0009] A clamping module is mounted on a mounting base and is used to clamp and position the bottle to be processed.

[0010] Preferably, the feeding mechanism is used to convey the bottle to be processed to the feeding structure, the feeding structure is used to convey the bottle to the primary heating structure for primary heating, the bottle mouth forming structure is used to assist in forming the bottle mouth after primary heating, the secondary heating structure is used to perform secondary heating on the bottle mouth, and the unloading structure is used to unload the bottle after the bottle mouth has cooled.

[0011] Preferably, the outer wall of the mounting base is provided with a movable groove, the movable groove is arranged in a circle around the circumference of the mounting base, and the inner wall of the movable groove is provided with a straight slot. The upper side of the movable groove is provided with a guide rod hole. The clamping module includes a movable base, a secondary rotating shaft, and a clamping mechanism. The movable base is movably disposed in the movable groove. The upper end face of the movable base is provided with a threaded hole, and a guide rod is threadedly connected to the threaded hole. The guide rod is movably disposed in the guide rod hole.

[0012] Preferably, the movable seat has a through hole, and a primary bearing groove and a secondary bearing groove are respectively opened at the inner and outer ends of the through hole. A primary bearing and a secondary bearing are fixedly installed in the primary bearing groove and the secondary bearing groove, respectively. The secondary rotating shaft is rotatably mounted on the movable seat through the primary bearing and the secondary bearing, and the secondary rotating shaft is set through the through hole. The clamping mechanism is fixed at the outer end of the secondary rotating shaft, and the bottle body is clamped and positioned by the clamping mechanism.

[0013] Preferably, a gantry bracket is fixedly installed at the edge of the rotating shaft seat, a three-stage rotating shaft is rotatably mounted on the gantry bracket, a transmission bevel gear is fixedly mounted on the lower end of the three-stage rotating shaft, a driven bevel gear is fixedly mounted on the inner end of the two-stage rotating shaft, the driven bevel gear is matched with the transmission bevel gear, a drive motor is fixedly mounted on the gantry bracket, a transmission gear is fixedly mounted on the output shaft of the drive motor, and a driven gear is fixedly mounted on the three-stage rotating shaft, the driven gear meshing with the transmission gear.

[0014] Preferably, a force-bearing component is fixedly installed on the edge of the rotating shaft seat via a connector. The force-bearing component is annular and is concentric with the rotating platform. A clearance groove is provided on the upper side of the force-bearing component, and the bottom surface of the clearance groove is connected to the upper surface of the force-bearing component via a smooth inclined surface. A wedge-shaped groove is provided on the outer end of the lower side of the movable seat, and the opening direction of the wedge-shaped groove is the same as the movement direction of the movable seat.

[0015] Preferably, the upper surface of the movable seat is provided with a spring groove, and a return spring is fixedly connected to the bottom of the spring groove. When the return spring is in the reset state, the movable seat is located at the bottom of the movable groove, and at this time, the driven bevel gear and the transmission bevel gear are separated.

[0016] Preferably, the positions of the feeding structure and the unloading structure correspond to the positions of the anti-cavity groove. The primary heating structure, the bottle mouth forming structure, and the secondary heating structure are offset from the anti-cavity groove. When the movable seat moves to the position of the anti-cavity groove, the return spring is in the reset state. When the lower side of the movable seat abuts against the upper surface of the force-bearing component, the movable seat moves to the upper end of the movable groove. At this time, the driven bevel gear and the transmission bevel gear are meshed.

[0017] Preferably, a guide pulley is installed on the lower surface of the rotating platform. The guide pulley is arranged in a circle around the circumference of the rotating platform, and when the rotating platform is actually installed, the wheel body of the guide pulley is engaged with the upper surface of the rotating shaft seat.

[0018] An apparatus for manufacturing the mouth of an injection vial, comprising the aforementioned injection vial manufacturing machine, wherein the apparatus uses a mouth forming structure to assist in grinding and shaping the mouth of the vial body, and a secondary heating structure is used to temper the mouth of the vial body to ensure the strength of the mouth.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. An injection bottle making machine is constructed by combining a feeding structure, a conveying structure, a primary heating structure, a bottle neck forming structure, a secondary heating structure, and a discharge structure. The feeding structure is composed of a rotating shaft seat, a rotating platform, a mounting base, and a clamping module. The clamping module is composed of a movable seat, a secondary rotating shaft, and a clamping mechanism. A force-bearing component is installed on the edge of the rotating shaft seat via a connector. The wedge groove on the movable seat interacts with the force-bearing component, thereby controlling the separation and engagement of the driven bevel gear and the transmission bevel gear. A single drive structure can control the driving and stopping of one rotation of the secondary rotating shaft, effectively reducing the use of drive structures on the equipment and facilitating daily maintenance by staff.

[0021] 2. By setting a ring of guide pulleys on the lower surface of the rotating platform, the force on the primary rotating shaft is distributed through the guide pulleys, thereby effectively ensuring the stability of the rotating platform during operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the feeding structure of the present invention;

[0024] Figure 3 This is a half-sectional view of the feeding structure of the present invention;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 5 This is a bottom view of the rotating platform of the present invention;

[0027] Figure 6 This is a schematic diagram of the mounting base structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the clamping module structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the movable seat structure of the present invention;

[0030] Figure 9 This is a half-sectional view of the movable seat of the present invention;

[0031] Figure 10 This is a schematic diagram of the stress-bearing component structure of the present invention.

[0032] In the diagram: 1. Feeding structure; 2. Primary heating structure; 3. Bottle mouth forming structure; 4. Secondary heating structure; 5. Unloading structure; 6. Rotating shaft seat; 7. Rotating platform; 8. Mounting seat; 9. Clamping module; 10. Support leg; 11. Primary rotating shaft; 12. Mounting plate; 13. Servo motor; 14. Coupling; 15. Movable seat; 16. Secondary rotating shaft; 17. Clamping mechanism; 18. Bottle body; 19. Movable groove; 20. Straight groove; 21. Guide rod hole; 22. Through hole; 23. Primary bearing groove; 24. Secondary bearing groove; 25. Primary bearing; 26. Secondary bearing; 27. Connecting part; 28. Force-bearing part; 29. ​​Clearance groove; 30. Threaded hole; 31. Spring groove; 32. Guide rod; 33. Return spring; 34. Wedge groove; 35. Gantry bracket; 38. Tertiary rotating shaft; 39. Transmission bevel gear; 41. Driven bevel gear. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit 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.

[0034] Please see Figures 1-10 The present invention provides the following three preferred embodiments:

[0035] Example 1: A vial-making machine for injection vials includes a feeding structure 1, a conveying structure, a primary heating structure 2, a bottle neck forming structure 3, a secondary heating structure 4, and a discharge structure 5. The feeding structure includes a rotating shaft seat 6, a rotating platform 7, a mounting base 8, and a clamping module 9. The rotating shaft seat 6 is fixed to the ground by support legs 10, and a primary rotating shaft 11 is rotatably mounted on the rotating shaft seat 6. A mounting plate 12 is fixedly mounted on the support legs 10, and a servo motor 13 is fixedly mounted on the mounting plate 12. The rotating platform 7 is fixedly connected to the upper end of the primary rotating shaft 11. The output shaft of the servo motor 13 is connected to a... The lower end of the rotating shaft 11 is fixedly connected. The mounting base 8 is an annular seat. The clamping module 9 is installed on the mounting base 8 and is used to clamp and position the bottle 18 to be processed. The feeding mechanism 1 is used to transport the bottle 18 to be processed to the feeding structure. The feeding structure is used to transport the bottle 18 to the first-stage heating structure 2 for first-stage heating. The bottle mouth forming structure 3 is used to assist in forming the bottle mouth of the bottle 18 after the first-stage heating. The second-stage heating structure 4 is used to perform secondary heating on the bottle mouth of the bottle 18. The unloading structure 5 is used to unload the bottle 18 after the bottle mouth has cooled.

[0036] A movable groove 19 is provided on the outer wall of the mounting base 8. The movable groove 19 is arranged in a circle around the circumference of the mounting base 8, and a straight slot 20 is provided through the inner wall of the movable groove 19. A guide rod hole 21 is provided through the upper side of the movable groove 19. The clamping module 9 includes a movable base 15, a secondary rotating shaft 16, and a clamping mechanism 17. The movable base 15 is movably disposed in the movable groove 19. A threaded hole 30 is provided on the upper end face of the movable base 15. A guide rod 32 is threadedly connected to the threaded hole 30. The guide rod 32 is movably disposed in the guide rod hole 21. A through hole 22 is provided on the movable base 15. A primary bearing groove 23 and a secondary bearing groove 24 are respectively provided at the inner and outer ends of the through hole 22. A primary bearing 25 and a secondary bearing 26 are fixedly installed in the primary bearing groove 23 and the secondary bearing groove 24, respectively. The secondary rotating shaft 16 passes through... The primary bearing 25 and the secondary bearing 26 are rotatably mounted on the movable seat 15, and the secondary rotating shaft 16 is set through the through hole 22. The clamping mechanism 17 is fixed on the outer end of the secondary rotating shaft 16. The bottle body 18 is clamped and positioned by the clamping mechanism 17. A gantry bracket 35 is fixedly installed on the edge of the rotating shaft seat 6. A tertiary rotating shaft 38 is rotatably mounted on the gantry bracket 35. A transmission bevel gear 39 is fixedly installed on the lower end of the tertiary rotating shaft 38. A driven bevel gear 41 is fixedly installed on the inner end of the secondary rotating shaft 16. The driven bevel gear 41 is matched with the transmission bevel gear 39. A drive motor 36 is fixedly mounted on the gantry bracket 35. A transmission gear 37 is fixedly mounted on the output shaft of the drive motor 36. A driven gear 40 is fixedly mounted on the tertiary rotating shaft 38. The driven gear 40 is meshed with the transmission gear 37.

[0037] A force-bearing component 28 is fixedly installed on the edge of the rotating shaft seat 6 via a connector 27. The force-bearing component 28 is annular and concentric with the rotating platform 7. A clearance groove 29 is provided on the upper side of the force-bearing component 28, and the bottom surface of the clearance groove 29 is connected to the upper surface of the force-bearing component 28 via a smooth inclined surface. A wedge-shaped groove 34 is provided on the outer end of the lower side of the movable seat 15. The opening direction of the wedge-shaped groove 34 is the same as the movement direction of the movable seat 15. A spring groove 31 is provided on the upper surface of the movable seat 15. A return spring 33 is fixedly connected to the bottom of the groove. When the return spring 33 is in the return state, the movable seat 15 is located at the bottom of the movable groove 19. At this time, the driven bevel gear 41 is separated from the transmission bevel gear 39. The positions of the feeding structure 1 and the unloading structure 5 correspond to the positions of the clearance groove 29. The primary heating structure 2, the bottle mouth forming structure 3, and the secondary heating structure 4 are misaligned with the clearance groove 29. When the movable seat 15 moves to the position of the clearance groove 29, the return spring 33 is in the return state. When the lower side of the movable seat 15 abuts against the upper surface of the force-bearing component 28, the movable seat 15 moves to the upper end of the movable groove 19. At this time, the driven bevel gear 41 meshes with the transmission bevel gear 39. An injection bottle making machine is constructed by combining a feeding structure 1, a feeding structure, a primary heating structure 2, a bottle neck forming structure 3, a secondary heating structure 4, and a discharge structure 5. The feeding structure is configured to consist of a rotating shaft seat 6, a rotating platform 7, a mounting base 8, and a clamping module 9. The clamping module 9 is configured to consist of the movable seat... 15. The secondary rotating shaft 16 and the clamping mechanism 17 are combined, and the force-bearing component 28 is installed on the edge of the rotating shaft seat 6 through the connecting piece 27. The wedge groove 34 on the movable seat 15 generates force with the force-bearing component 28, thereby realizing the separation and engagement of the driven bevel gear 41 and the transmission bevel gear 39. Thus, a single drive structure can control the driving and stopping of one revolution of the secondary rotating shaft 16, thereby effectively reducing the use of drive structures on the equipment and facilitating the daily maintenance and repair of the equipment by the staff.

[0038] In Example 2, based on Example 1, a guide pulley 42 is installed on the lower surface of the rotating platform 7. The guide pulley 42 is arranged in a circle around the circumference of the rotating platform 7. When the rotating platform 7 is actually installed, the wheel body of the guide pulley 42 is engaged with the upper surface of the rotating shaft seat 6. By setting a circle of guide pulleys 42 on the lower surface of the rotating platform 7, the force on the first-stage rotating shaft 11 is distributed through the guide pulleys 42, thereby effectively ensuring the stability of the rotating platform 7 during operation.

[0039] Example 3: Based on Example 2, an apparatus for making the mouth of an injection vial is provided. The apparatus includes the injection vial making machine described above. The apparatus uses a mouth forming structure 3 to assist in grinding and forming the mouth of the vial body 18. A secondary heating structure 4 is used to temper the mouth of the vial body 18 to ensure the strength of the mouth.

[0040] In actual use, when the movable seat 15 moves to the position of the feeding structure 1, the movable seat 15 moves to the lower side of the movable groove 19. At this time, the driven bevel gear 41 separates from the transmission bevel gear 39, so the secondary rotating shaft 16 does not rotate. At this time, the feeding robot on the feeding structure 1 tracks the movable seat 15 and moves synchronously, and simultaneously feeds the bottle body 18 to be processed onto the clamping mechanism 17. Then, after the loading is completed, the movable seat 15 moves forward. When it moves to the position where it separates from the clearance groove 29, the driven bevel gear 41 and the transmission bevel gear 39 engage together. At this time, the secondary rotating shaft 16 rotates, and then the bottle mouth of the bottle body 18 is heated by the primary heating structure 2. In the first heating stage, the rotation of the secondary shaft 16 causes the bottle mouth of the bottle body 18 to rotate, making the heating process more uniform. Then, the bottle mouth forming structure 3 assists in grinding and shaping the bottle mouth of the bottle body 18. When the bottle mouth of the bottle body 18 moves to the position of the secondary heating structure 4, the secondary heating structure 4 heats the bottle mouth of the bottle body 18 a second time. Then, the bottle mouth of the bottle body 18 is allowed to cool naturally. When the bottle mouth of the bottle body 18 moves to the position of the unloading structure 5, the movable seat 15 enters the clearance groove 29, causing the driven bevel gear 41 and the transmission bevel gear 39 to separate again. Then, the unloading structure 5 completes the unloading of the bottle body 18.

[0041] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A vial-making machine for injection vials, comprising a feeding structure (1), a conveying structure, a primary heating structure (2), a bottle neck forming structure (3), a secondary heating structure (4), and a discharge structure (5), characterized in that: The feeding structure includes: A pivot seat (6) is fixed to the ground by a support leg (10), and a first-stage pivot (11) is rotatably mounted on the pivot seat (6). A mounting plate (12) is fixedly mounted on the support leg (10), and a stepper motor (13) is fixedly mounted on the mounting plate (12). Rotating platform (7), the rotating platform (7) is fixedly connected to the upper end of the first-stage rotating shaft (11), and the output shaft of the stepper motor (13) is fixedly connected to the lower end of the first-stage rotating shaft (11) through a coupling (14); Mounting base (8), wherein the mounting base (8) is an annular seat body; A clamping module (9) is mounted on a mounting base (8) and is used to clamp and position the bottle (18) to be processed. The mounting base (8) has a movable groove (19) on its outer side wall. The movable groove (19) is arranged in a circle around the mounting base (8). The inner side wall of the movable groove (19) is provided with a straight slot (20). The upper side of the movable groove (19) is provided with a guide rod hole (21). The clamping module (9) includes a movable base (15), a secondary rotating shaft (16), and a clamping mechanism (17). The movable base (15) is movably disposed in the movable groove (19). The upper end face of the movable base (15) is provided with a threaded hole (30). A guide rod (32) is threadedly connected in the threaded hole (30). The guide rod (32) is movably disposed in the guide rod hole (21). The movable seat (15) is provided with a through hole (22). The inner and outer ports of the through hole (22) are respectively provided with a primary bearing groove (23) and a secondary bearing groove (24). A primary bearing (25) and a secondary bearing (26) are respectively fixedly installed in the primary bearing groove (23) and the secondary bearing groove (24). The secondary rotating shaft (16) is rotatably installed on the movable seat (15) through the primary bearing (25) and the secondary bearing (26). The secondary rotating shaft (16) passes through the through hole (22). The clamping mechanism (17) is fixed on the outer end of the secondary rotating shaft (16). The bottle body (18) is clamped and positioned by the clamping mechanism (17). A gantry bracket (35) is fixedly installed on the edge of the rotating shaft seat (6). A three-stage rotating shaft (38) is rotatably installed on the gantry bracket (35). A transmission bevel gear (39) is fixedly installed on the lower end of the three-stage rotating shaft (38). A driven bevel gear (41) is fixedly installed on the inner end of the second-stage rotating shaft (16). The driven bevel gear (41) is matched with the transmission bevel gear (39). A drive motor (36) is fixedly installed on the gantry bracket (35). A transmission gear (37) is fixedly installed on the output shaft of the drive motor (36). A driven gear (40) is fixedly installed on the three-stage rotating shaft (38). The driven gear (40) meshes with the transmission gear (37). The edge of the rotating shaft seat (6) is fixedly installed with a force-bearing component (28) through a connector (27). The force-bearing component (28) is a ring and is arranged with the rotating platform (7) at the same center. A clearance groove (29) is provided on the upper side of the force-bearing component (28). The bottom surface of the clearance groove (29) is connected to the upper surface of the force-bearing component (28) through a smooth inclined surface. A wedge-shaped groove (34) is provided on the lower side of the movable seat (15) near the outer end. The opening direction of the wedge-shaped groove (34) is the same as the movement direction of the movable seat (15). The upper surface of the movable seat (15) is provided with a spring groove (31), and a reset spring (33) is fixedly connected to the bottom of the spring groove (31). When the reset spring (33) is in the reset state, the movable seat (15) is located at the bottom of the movable groove (19), and at this time, the driven bevel gear (41) and the transmission bevel gear (39) are separated. The feeding structure (1) and unloading structure (5) are positioned corresponding to the position of the clearance groove (29). The first-stage heating structure (2), bottle mouth forming structure (3), and second-stage heating structure (4) are offset from the clearance groove (29). The movable seat (15) moves to the position of the clearance groove (29), the reset spring (33) is in the reset state, and when the lower side of the movable seat (15) abuts against the upper surface of the force-bearing component (28), the movable seat (15) moves to the upper end of the movable groove (19). At this time, the driven bevel gear (41) meshes with the transmission bevel gear (39).

2. The injection vial making machine according to claim 1, characterized in that: The feeding structure (1) is used to transport the bottle body (18) to be processed to the feeding structure. The feeding structure is used to transport the bottle body (18) to the first-stage heating structure (2) for first-stage heating. The bottle mouth forming structure (3) is used to assist in forming the bottle mouth of the bottle body (18) after the first-stage heating. The second-stage heating structure (4) is used to perform secondary heating on the bottle mouth of the bottle body (18). The unloading structure (5) is used to unload the bottle body (18) after the bottle mouth has cooled.

3. The injection vial making machine according to claim 1, characterized in that: The lower surface of the rotating platform (7) is equipped with guide pulleys (42). The guide pulleys (42) are arranged in a circle around the circumference of the rotating platform (7). When the rotating platform (7) is actually installed, the wheel body of the guide pulleys (42) is close to the upper surface of the rotating shaft seat (6).

4. A device for manufacturing the mouth of an injection vial, characterized in that: The syringe bottle mouth making device has any one of the syringe bottle making machines described in claims 1-3. The syringe bottle mouth making device uses the bottle mouth forming structure (3) to assist in grinding and forming the bottle mouth of the bottle body (18). The secondary heating structure (4) is used to temper the bottle mouth of the bottle body (18) to ensure the strength of the bottle mouth.

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