Mouth mold module

Abstract

The utility model relates to the field of container production, in particular to a mouth mold module which is composed of two mold plates and comprises a forming part, a locking part and a cooling part, the forming part is used for forming threads of a bottle mouth, the locking part is arranged on the outer ring of the forming part, the locking part is embedded into a core rod assembly and a flange to fix the mold plates, and the cooling part is arranged on the outer ring of the forming part. And the formed bottle opening is cooled. The problem that in the prior art, heat cannot be discharged in time in the bottle opening production process is solved, it is ensured that bottle opening threads are stably generated, and the threads can be matched with a bottle cap in a sealed mode.

Description

Technical Field

[0001] This utility model relates to the field of container manufacturing, and in particular to a die module. Background Technology

[0002] In bottle manufacturing, preforms and caps are processed separately. Preforms are typically produced using a preform forming device, such as... Figure 1 and Figure 2 As shown, the preform forming device includes a core rod assembly, a die module, a flange, a cavity, and a bottom mold. A cavity is formed between the core rod assembly, the die module, the cavity, and the bottom mold. Preform forming is performed within the cavity. Since the bottle mouth needs to fit with the bottle cap to seal the bottle, the die module shapes the shape of the bottle mouth, creating threads on the outside of the bottle mouth. The bottle cap and the threads fit together to seal the bottle.

[0003] However, a lot of heat is generated during the production of the bottle neck. If the heat generated during the production of the bottle neck cannot be dissipated in time, it will affect the formation of the bottle neck threads, ultimately causing the bottle neck to fail to fit and seal with the bottle cap, thus affecting the use of the bottle.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a mouth mold module, which aims to solve the problem that heat cannot be dissipated in time during the bottle mouth production process in the prior art, to ensure the stable generation of the bottle mouth thread, so that the thread can fit with the bottle cap for sealing.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: a die module, consisting of two templates, including:

[0007] A forming section for forming the threads of the bottle neck;

[0008] A locking part is disposed on the outer ring of the molding part, and the locking part is embedded in the core rod assembly and the flange to fix the template;

[0009] A cooling section is disposed on the outer ring of the molding section to cool the molding of the bottle mouth;

[0010] Furthermore, the cooling unit includes cooling pipes, a water outlet, and a water inlet;

[0011] The cooling pipe is arranged around the outer ring of the molding part, and the water outlet and the water inlet are respectively located at both ends of the cooling pipe.

[0012] Furthermore, the cooling pipeline includes a main cooling pipe, an inlet cooling pipe, and an outlet cooling pipe;

[0013] The inlet cooling pipe and the outlet cooling pipe are respectively connected to the main cooling pipe. The inlet is located at the end of the inlet cooling pipe, and the outlet is located at the end of the outlet cooling pipe.

[0014] Furthermore, the cooling pipeline also includes an inlet connector and an outlet connector, the inlet connector connecting the inlet cooling pipe and the main cooling pipe, and the outlet connector connecting the main cooling pipe and the outlet cooling pipe.

[0015] Furthermore, the locking part includes a first locking edge, which is embedded in the flange.

[0016] Furthermore, the locking part also includes a second locking edge, which is embedded in the core rod assembly.

[0017] Furthermore, the locking part also includes a mounting edge, which is disposed between the first locking edge and the second locking edge, and the cooling part is disposed within the mounting edge.

[0018] Furthermore, the forming part includes a forming inner wall for forming the bottle neck.

[0019] Furthermore, the molding part also includes a plurality of molding grooves, which are spaced apart on the inner wall of the molding part to generate threads on the bottle mouth.

[0020] Furthermore, the die module also includes an exhaust section disposed inside the forming section to discharge the gas generated during the forming of the bottle mouth.

[0021] Beneficial effects:

[0022] This application provides a mouthpiece module, which primarily uses a cooling section to cool the bottle mouth during the forming process, preventing excessively high temperatures that could lead to substandard bottle mouth quality. Simultaneously, a locking structure secures the forming section, preventing the mouthpiece module from separating during the forming process and maintaining its structural stability. This ensures the parting line of the formed bottle mouth meets requirements and does not adversely affect customer use. Furthermore, the forming section cools the forming section in a timely manner, allowing the formed bottle mouth to solidify and form the required threads for subsequent threaded connection with the bottle cap, sealing the bottle and ensuring its airtightness. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a blank forming device;

[0024] Figure 2 for Figure 1A cross-sectional view along the AA direction;

[0025] Figure 3 This is a schematic diagram of the die module in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the mouthpiece module from another angle in an embodiment of this application;

[0027] Figure 5 This is a side view of the die module in an embodiment of this application;

[0028] Figure 6 This is a side view of the die module without the second locking edge in the embodiment of this application;

[0029] Figure 7 This is a side view of the die module in this embodiment, where the second locking edge is replaced by a straight edge;

[0030] Figure 8 This is a top view of the die module in an embodiment of this application;

[0031] Figure 9 for Figure 8 Cross-sectional view along the DD direction

[0032] Figure 10 This is a schematic diagram of the third angle of the mouthpiece module in an embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Molding section; 11. Molding inner wall; 12. Molding groove; 2. Locking section; 21. First locking edge; 22. Second locking edge; 23. Mounting edge; 3. Cooling section; 31. Cooling pipe; 311. Main cooling pipe; 312. Water inlet cooling pipe; 313. Water outlet cooling pipe; 314. Water inlet connector; 315. Water outlet connector; 32. Water outlet; 33. Water inlet; 4. Exhaust section; 10. Core rod assembly; 20. Die module; 30. Cavity; 40. Bottom mold; 50. Flange. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer and more explicit, the following detailed description of this application is provided with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0036] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] This utility model provides a die module, such as Figures 1 to 10 As shown, this design aims to solve the problem of insufficient heat dissipation during the bottle neck production process in existing technologies, ensuring the stable generation of the bottle neck threads so that the threads can fit and seal with the bottle cap, such as... Figure 1 and Figure 2 As shown, the core rod assembly 10 is formed in conjunction with the die module 20, cavity 30, and bottom mold 40 in the preform forming device. The flange 50 is used to fix the die module 20 and simultaneously forms the bottle neck within the cavity between the die module 20 and the core rod assembly 10. The die module 20 consists of two templates, which are joined together to form the die module 20, within which the bottle neck is formed. Specifically, as... Figure 3As shown, the die module 20 includes a forming part 1, a locking part 2, a cooling part 3, and a venting part 4. The forming part 1 is used to form the threads of the bottle neck. When the bottle neck needs to be formed, the preform forming device is hung on the injection molding machine and connected to the injection molding machine. The plastic particles in the injection molding machine are heated and melted in the injection molding machine barrel. Then, the molten plastic particles flow through the hot runner of the mold into the preform forming device to cool and solidify, and fit with the mandrel assembly 10 and the die module 20. The mandrel assembly 10 is used to form the inner wall of the preform, while the die module 20 is used to form the outer shape of the bottle neck. Therefore, the threads of the bottle neck are formed by the forming part 1. The locking part 2 is set on the outer ring of the forming part 1. The locking part 2 is embedded in the mandrel assembly 10 and the flange 50 to fix the forming part 1. This prevents the die module 20 from being squeezed by the force of the bottle neck forming during the forming process, which would cause the die module 20 to separate and affect the forming of the bottle neck. By using the locking part 2 to fix the forming part 1, the quality of the parting line and the size of the bottle neck are ensured, and the bottle neck forming failure is avoided. The cooling section 3 is located on the outer ring of the forming section 1. Specifically, the cooling section 3 is located inside the locking section 2. The cooling section 3 cools the bottle neck during forming, preventing the bottle neck from overheating and deforming its dimensions. Furthermore, when the temperature is too high, the bottle neck wall thickness becomes more difficult to control, leading to substandard quality. Therefore, the cooling section 3 ensures that the dimensions and wall thickness of the formed bottle neck meet high-precision requirements. Additionally, during bottle neck forming, because the bottle neck is located at the end of the preform, gas accumulation is likely. If the gas cannot be expelled in time, defects such as material shortage, bubbles, and scorching may occur. Therefore, the accumulated gas during bottle neck forming needs to be expelled promptly. The venting section 4 removes the accumulated gas in a timely manner, preventing defects during bottle neck forming and ensuring smooth forming.

[0039] Specifically, the cooling section 3 includes a cooling pipe 31, a water outlet 32, and a water inlet 33. The cooling pipe 31 is arranged around the outer ring of the molding section 1. The water outlet 32 ​​and the water inlet 33 are respectively located at both ends of the cooling pipe 31. Cooling water enters the cooling pipe 31 through the water inlet 33 and flows within the cooling pipe 31. While flowing within the cooling pipe 31, the cooling water absorbs the heat generated during the bottle neck molding process in the molding section 1. Then, the cooling water flows along the cooling pipe 31 and towards the water outlet 32, finally being discharged from the water outlet 32. In this embodiment, as... Figure 4As shown, the cooling pipe 31 consists of multiple straight pipes that surround the outer ring of the molding section 1. Cooling water flows within the straight pipes and carries away the heat generated during the molding of the bottle mouth within the molding section 1. However, the straight pipes are not completely fitted to the molding section 1, resulting in gaps between them and leading to poor cooling performance of the cooling section 3. Therefore, to improve the cooling effect of the cooling section 3, in other embodiments, the cooling pipe 31 can be composed of multiple curved pipes. These curved pipes can be completely fitted to the outer ring of the molding section 1, eliminating gaps between them. This allows the cooling water within the pipes to better absorb heat from the molding section 1, enabling timely heat dissipation and thus improving the cooling effect of the cooling section 3.

[0040] The cooling pipe 31 includes a main cooling pipe 311, an inlet cooling pipe 312, and an outlet cooling pipe 313. The main cooling pipe 311 is stacked with the inlet cooling pipe 312 and the outlet cooling pipe 313. The main cooling pipe 311 is positioned above the inlet cooling pipe 312 and the outlet cooling pipe 313. The inlet cooling pipe 312 and the outlet cooling pipe 313 are connected to the main cooling pipe 311 respectively. The inlet cooling pipe 312 and the outlet cooling pipe 313 are arranged adjacent to each other. The inlet 33 is located at the end of the inlet cooling pipe 312, and the outlet 32 ​​is located at the end of the outlet cooling pipe 313. The inlet 33 and the outlet 32 ​​are located at the same height, and the angle between the inlet 33 and the inlet cooling pipe 312 is small, and the angle between the outlet 32 ​​and the outlet cooling pipe 313 is also small. This reduces the space occupied by the cooling section 3, increases the contact area between the cooling section 3 and the molding section 1, and thus improves the cooling efficiency of the cooling section 3.

[0041] When the inlet cooling pipe 312 and the outlet cooling pipe 313 are respectively connected to the main cooling pipe 311, it is necessary to ensure that the cooling water can flow smoothly from the inlet cooling pipe 312 to the main cooling pipe 311, so that the cooling water can absorb the heat in the molding part 1 by flowing in the main cooling pipe 311, and cool the bottle mouth molding process to ensure the quality of the bottle mouth molding; and to ensure that the cooling water can flow smoothly from the main cooling pipe 311 to the outlet cooling pipe 313, so that the cooling water that has absorbed the heat can be discharged from the outlet 32 ​​in time, so that the cooling water can flow continuously in the main cooling pipe 311. Therefore, in this application, the cooling pipe 31 also includes an inlet connector 314 and an outlet connector 315. The inlet connector 314 connects the inlet cooling pipe 312 and the main cooling pipe 311, and the outlet connector 315 connects the main cooling pipe 311 and the outlet cooling pipe 313. The inlet connector 314 and the outlet connector 315 are cylindrical. The end of the inlet connector 314 is provided with a port for connecting the inlet cooling pipe 312 and the main cooling pipe 311, and the outlet connector 315 is provided with a port for connecting the outlet cooling pipe 313 and the main cooling pipe 311. This allows one end of the inlet cooling pipe 312 and the main cooling pipe 311 to be inserted into the port of the inlet connector 314, allowing the cooling water flowing in the inlet cooling pipe 312 to flow to the main cooling pipe 311 through the guide of the inlet connector 314. Similarly, the other ends of the outlet cooling pipe 313 and the main cooling pipe 311 are inserted into the port of the outlet connector 315, so that the cooling water flowing in the main cooling pipe 311 passes through the outlet connector 315, and the cooling water that has absorbed the heat in the molded part 1 is smoothly discharged from the outlet 32.

[0042] When forming the bottle neck within the forming section 1, it is necessary to lock the forming section 1 to prevent the two mating templates used to form the mouth mold module 20 from springing apart due to the forming force during the bottle neck molding process, which would affect the size of the parting line of the bottle neck after molding. Since the bottle neck needs to directly contact the customer's mouth, if the parting line does not meet the requirements, it will affect the customer's user experience. Therefore, it is necessary to control the production process during bottle neck molding to ensure that the parting line meets the requirements and avoids a poor customer experience. Therefore, in this application, the forming section 1 is locked by the locking section 2 to maintain its stability. Specifically, as shown... Figure 5As shown, the locking part 2 includes a first locking edge 21, which retracts inward and is embedded in a flange 50. The flange 50 secures the first locking edge 21, thereby locking the molding part 1 and securing the die module 20. This prevents the die module 20 from springing open during bottle neck molding, which would affect the quality of the bottle neck molding and thus ensure the quality of the parting line and the bottle neck size. Furthermore, to further strengthen the securing of the die module 20, the locking part 2 also includes a second locking edge 22, which retracts inward and is embedded in a core rod assembly 10. The core rod assembly 10 secures the first locking edge 21, thereby locking the molding part 1 and further securing the die module 20, thus ensuring the molding quality of the bottle neck. In other embodiments, when the quality requirements for bottle neck molding are relatively low, only the first locking edge 21 can be used for securing, such as... Figure 6 As shown, the original second locking edge 22 can be eliminated, and only the first locking edge 21 is used to lock the molding part 1, or a straight edge can be used instead of the original second locking edge 22, such as... Figure 7 As shown, the straight edge balance locking part 2 is used to fasten the die module 20 without using the straight edge.

[0043] Furthermore, to provide support for the first locking edge 21 and the second locking edge 22, the locking part 2 also includes a mounting edge 23. The mounting edge 23 is disposed between the first locking edge 21 and the second locking edge 22, and also surrounds the outer ring of the molding part 1. The mounting edge 23 provides support for the first locking edge 21 and the second locking edge 22, and also provides support for the molding part 1. In addition, a mounting space is reserved within the mounting edge 23 for the installation of the cooling part 3, thereby allowing the cooling part 3 to be disposed within the mounting edge 23, improving the overall integrity of the die module 20, and thus increasing the service life of the die module 20.

[0044] During the bottle neck molding process, the process needs to be carried out within the molding section 1, where the bottle neck's shape is shaped. Specifically, the molding section 1 includes a molding inner wall 11, which is used to shape the bottle neck's shape. When the molten plastic particles flow into the molding section 1 and cool and solidify, the molding section gradually adheres to the molding inner wall 11, thereby shaping the bottle neck's shape through the molding inner wall 11. Furthermore, in order to generate threads on the bottle neck so that the bottle cap can be connected to the bottle neck via threads and seal the bottle, an additional structure is required to form threads on the outer ring of the bottle neck during molding. Specifically, in this application, the molding part 1 further includes a plurality of molding grooves 12, which are spaced apart on the molding inner wall 11. When the plastic particle melt cools and solidifies and adheres to the molding inner wall 11, a portion of the cooled plastic particle melt is embedded in the molding groove 12. After the bottle mouth cools and solidifies, the plastic particle melt located in the molding groove 12 is cold-hardened and molded, thereby forming a protrusion at the corresponding position on the bottle mouth, and thus forming a thread on the bottle mouth. Subsequently, the bottle cap can be threadedly connected to the bottle mouth to seal the bottle and ensure the bottle's airtightness.

[0045] When the bottle neck is formed, a gas forming part is generated during the cooling and solidification process of the plastic particle melt. After the bottle neck is formed, the gas in the forming part 1 needs to be discharged in time to avoid gas accumulation and causing defects such as material shortage, air bubbles, and scorching at the bottle neck. Therefore, the die module 20 also includes an exhaust part 4, which is set inside the forming part 1 to discharge the gas during the bottle neck forming process and ensure the quality of the bottle neck forming.

[0046] Specifically, the venting section 4 includes an internal venting groove 41, an air outlet 42, and an external venting groove 43. The internal venting groove 41 is disposed on the forming section 1 of the die module 20, such as... Figure 8 and Figure 9 As shown, to ensure that the gas can be discharged through the cavity exhaust groove 41 when the bottle mouth is formed in the forming part 1, the exhaust port 42 is provided on the side of the forming part 1 and is connected to the cavity exhaust groove 41. The gas in the cavity exhaust groove 41 is discharged through the exhaust port 42 to avoid the gas accumulated in the forming part 1 from affecting the forming of the bottle mouth. The cavity exhaust groove 43 is provided on the locking part 2 of the mold module 20 and is connected to the exhaust port 42. When the gas in the forming part 1 is guided to the exhaust port 42 by the cavity exhaust groove 41, it also needs to be discharged from the exhaust port 42 to the mold module 20 to avoid the gas from accumulating at the mold module 20 and affecting the use of the mold module 20. Therefore, the gas flowing to the exhaust port 42 is discharged through the cavity exhaust groove 43 on the mold module 20, so that the gas in the cavity exhaust groove 43 is discharged from the mold module 20.

[0047] The cavity venting groove 41 includes a conformal venting groove 411, which is disposed on the inner wall of the forming part 1, i.e., on the forming inner wall 11. The conformal venting groove 411 is threaded into the bottle mouth. As the bottle mouth is gradually formed, the gas used for forming the bottle mouth gradually exits from the conformal venting groove 411 into the forming part 1, preventing gas from accumulating in the forming part 1. However, the bottle mouth is generally designed with a support ring. The outer diameter of the support ring is relatively large. Correspondingly, the forming inner wall 11 needs to expand to both sides. At this time, the forming inner wall 11 is relatively deep at the position of the bottle mouth support ring, which is not conducive to the gas discharge. Therefore, for the position of the bottle mouth support ring, the cavity venting groove 41 also includes a reinforcing venting groove 412. The reinforcing venting groove 412 is disposed on the inner wall of the forming part 1, at a position corresponding to the support ring of the bottle mouth. The two ends of the reinforcing venting groove 412 are respectively connected to the conformal venting groove 411, thereby facilitating the discharge of gas during the forming of the bottle mouth.

[0048] When gas flows out of the molding part 1, it flows through the internal venting groove 41 and the vent 42, and finally exits through the external venting groove 43 to exit the mold module 20. Therefore, in order to allow the gas to exit smoothly from the mold module 20, the external venting groove 43 includes a conical groove 431. The conical groove 431 is respectively provided on the outer ring of the first locking edge 21, the second locking edge 22 and the mounting edge 23 of the locking part 2. Figure 10 As shown, the guiding gas gradually flows from the outlet 42 to the outside of the forming part 1 and is finally discharged from the die module 20. Furthermore, in order to allow the gas to be discharged more smoothly from the die module 20, the external exhaust groove 43 also includes a cross-sectional groove 432. The cross-sectional groove 432 is provided on the end face of the first locking edge 21 and the second locking edge 22. At this time, the cross-sectional groove 432 is connected to the conical groove 431, thereby guiding the gas to be discharged from the ends of the first locking edge 21 and the second locking edge 22, allowing the gas to be discharged more smoothly from the die module 20.

[0049] At this time, the exhaust section 4 is provided with several air outlets 42. The air outlets 42 are connected to the conformal exhaust groove 411 and the reinforced exhaust groove 412 respectively, so as to discharge the gas in the molding section 1. Then, the air outlets 42 are also connected to the conical groove 431, so that the gas discharged from the molding section 1 is guided to the outside of the die module 20 through the conical groove 431 and the cross-sectional groove 432. Finally, the gas is discharged from the molding section 1 to the outside of the die module 20 in the order of the cavity exhaust groove, the air outlet and the cavity exhaust groove, thus avoiding gas accumulation.

[0050] Typically, the cross-section of the internal exhaust groove 41 is trapezoidal, square, or semi-circular. However, in order to allow for better gas flow, the cross-section of the internal exhaust groove 41 is square in this application. Similarly, the cross-section of the external exhaust groove 43 is also square in this application.

[0051] Therefore, when producing bottle necks using the die module 20 in this application, the first locking edge 21 is embedded into the flange 50, and the second locking edge 22 is embedded into the core rod assembly 10 to complete the installation of the die module 20. Then, the water supply device is connected to the inlet 33, and the recovery device is connected to the outlet 32, so that cooling water flows from the inlet 33 to the inlet cooling pipe 312, then flows through the inlet connector 314, the main cooling pipe 311, the outlet cooling pipe 313, and the outlet connector 315, and finally flows to the outlet 32 ​​and is discharged through the outlet 32. During the flow of cooling water, the cooling water absorbs the heat generated during bottle neck forming, preventing the temperature from being too high and affecting the forming of the bottle neck. During the bottle neck forming process, the exhaust section 4 promptly discharges the gas in the forming section 1 to prevent gas from accumulating in the forming section 1, and the cooling section 3 simultaneously cools the forming section 1 to ensure that the bottle neck can be cooled and solidified in time after forming.

[0052] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A die module, comprising two templates, characterized in that, include: A forming section for forming the threads of the bottle neck; A locking part is disposed on the outer ring of the molding part, and the locking part is embedded in the core rod assembly and the flange to fix the template; A cooling section is disposed on the outer ring of the molding section to cool the molding of the bottle mouth.

2. The die module according to claim 1, characterized in that, The cooling unit includes cooling pipes, an outlet, and an inlet; The cooling pipe is arranged around the outer ring of the molding part, and the water outlet and the water inlet are respectively located at both ends of the cooling pipe.

3. The die module according to claim 2, characterized in that, The cooling pipeline includes a main cooling pipe, an inlet cooling pipe, and an outlet cooling pipe; The inlet cooling pipe and the outlet cooling pipe are respectively connected to the main cooling pipe. The inlet is located at the end of the inlet cooling pipe, and the outlet is located at the end of the outlet cooling pipe.

4. The die module according to claim 3, characterized in that, The cooling pipeline also includes an inlet connector and an outlet connector. The inlet connector connects the inlet cooling pipe and the main cooling pipe, and the outlet connector connects the main cooling pipe and the outlet cooling pipe.

5. The die module according to claim 1, characterized in that, The locking part includes a first locking edge, which is embedded in the flange.

6. The die module according to claim 5, characterized in that, The locking part further includes a second locking edge, which is embedded in the core rod assembly.

7. The die module according to claim 6, characterized in that, The locking part further includes a mounting edge, which is disposed between the first locking edge and the second locking edge, and the cooling part is disposed within the mounting edge.

8. The die module according to claim 1, characterized in that, The forming section includes a forming inner wall for forming the bottle neck.

9. The die module according to claim 8, characterized in that, The molding part further includes a plurality of molding grooves, which are spaced apart on the inner wall of the molding part to generate threads on the bottle mouth.

10. The die module according to any one of claims 1 to 9, characterized in that, The die module also includes an exhaust section, which is disposed inside the forming section to discharge the gas during the forming of the bottle mouth.

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