Mouth mold module

Abstract

The invention 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] The invention relates to the field of container production, in particular to a die module. Background Art

[0002] In bottle production, the preform and the cap are processed separately. The preform is usually produced by a preform molding device, such as Figure 1 and Figure 2 As shown, the blank mold forming device includes a core rod assembly, a mouth mold module, a flange, a cavity and a bottom mold. A cavity is formed between the core rod assembly and the mouth mold module, the cavity and the bottom mold, and the bottle blank is formed in the cavity. Since the bottle mouth needs to cooperate with the bottle cap to seal the bottle through the bottle cap, the shape of the bottle mouth is shaped by the mouth mold module so that threads are produced on the outside of the bottle mouth, and the bottle is sealed by the cooperation of the bottle cap and the threads.

[0003] However, a large amount of heat will be generated during the production of the bottle mouth. If the heat generated during the production of the bottle mouth cannot be discharged in time, it will affect the formation of the bottle mouth thread, and ultimately cause the bottle mouth to be unable to cooperate with the bottle cap to seal, affecting the use of the bottle.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of this application is to provide a mouth mold module, aiming to solve the problem in the prior art that heat cannot be discharged in time during the bottle mouth production process, ensure the stable generation of the bottle mouth thread, and enable the thread to cooperate with the bottle cap to seal.

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

[0007] A molding part, the molding part is used to mold the thread of the bottle mouth;

[0008] A locking portion, the locking portion being arranged on the outer ring of the forming portion, the locking portion being embedded in the core rod assembly and the flange to fix the template;

[0009] A cooling part, which is arranged on the outer ring of the forming part to cool the forming of the bottle mouth;

[0010] Further, the cooling unit includes a cooling pipeline, a water outlet and a water inlet;

[0011] The cooling pipeline is arranged in an outer ring of the forming part, and the water outlet and the water inlet are respectively arranged at two ends of the cooling pipeline.

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

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

[0014] Furthermore, the cooling pipeline also includes a water inlet connector and a water outlet connector, the water inlet connector connects the water inlet cooling pipe and the main cooling pipe, and the water outlet connector connects the main cooling pipe and the water outlet cooling pipe.

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

[0016] Furthermore, the locking portion further includes a second locking edge, and the second locking edge is embedded in the core rod assembly.

[0017] Furthermore, the locking portion further includes a mounting edge, the mounting edge is arranged between the first locking edge and the second locking edge, and the cooling portion is arranged inside the mounting edge.

[0018] Furthermore, the molding portion includes a molding inner wall for molding the bottle mouth.

[0019] Furthermore, the molding part further comprises a plurality of molding grooves, and the molding grooves are arranged at intervals on the molding inner wall to generate threads on the bottle mouth.

[0020] Furthermore, the die module also includes an exhaust portion, which is arranged inside the molding portion to exhaust gas during molding of the bottle mouth.

[0021] Beneficial effects:

[0022] The present application provides a mouth die module, which mainly cools the bottle mouth during the forming process through a cooling part to avoid excessive temperature during the forming process of the bottle mouth, resulting in the quality of the bottle mouth not meeting the requirements. At the same time, the forming part is fixed by a locking structure to prevent the mouth die module from being separated during the forming process of the bottle mouth, and to maintain the structural stability of the mouth die module, so that the joint line after the bottle mouth is formed meets the requirements and does not cause adverse effects on the use of customers. At the same time, the bottle mouth is formed in the forming part, and the thread of the bottle mouth is cooled in time by the cooling part, so that the bottle mouth is cooled and solidified after forming, and a thread that meets the requirements is formed, so that it can be subsequently connected with the bottle cap thread, and the bottle is sealed by the bottle cap to ensure the sealing of the bottle. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 for Figure 1Schematic diagram of the cross section along the AA direction;

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

[0026] Figure 4 A schematic diagram of the die module from another angle in an embodiment of the present application;

[0027] Figure 5 A side view of the die module in the embodiment of the present application;

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

[0029] Figure 7 A side view of the die module in the embodiment of the present application, in which a straight edge is used instead of the second locking edge;

[0030] Figure 8 A top view of the die module in the embodiment of the present application;

[0031] Fig. 9 for Figure 8 Schematic diagram of the cross section along the DD direction

[0032] Fig.10 This is a schematic diagram of the third angle of the die module in the embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Molding part; 11. Molding inner wall; 12. Molding groove; 2. Locking part; 21. First locking edge; 22. Second locking edge; 23. Mounting edge; 3. Cooling part; 31. Cooling pipeline; 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 part; 10. Core rod assembly; 20. Mould module; 30. Cavity; 40. Bottom mould; 50. Flange. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] The present invention provides a die module, such as Figures 1 to 10 As shown, it aims to solve the problem that the heat cannot be discharged in time during the production process of the bottle mouth in the prior art, ensure the stable generation of the bottle mouth thread, so that the thread can cooperate with the bottle cap to seal, such as Figure 1 and Figure 2 As shown, the core rod assembly 10 cooperates with the die module 20, the cavity 30, and the bottom mold 40 in the preform forming device to form a bottle, and the flange 50 is used to fix the die module 20, and at the same time, a bottle mouth is formed in the cavity between the die module 20 and the core rod assembly 10. The die module 20 is composed of two templates, and the two templates are assembled together to form the die module 20, and a bottle mouth is formed in the die module 20. Specifically, as Figure 3As shown, the die module 20 includes a molding part 1, a locking part 2, a cooling part 3 and a venting part 4. The molding part 1 is used to mold the threads of the bottle mouth. When it is necessary to form a bottle preform and a bottle mouth on the bottle preform, the blank mold molding 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 dissolved in the injection molding machine barrel, and then the plastic particle melt flows into the blank mold molding device through the hot runner of the mold to be cooled and solidified, and fits with the core rod assembly 10 and the die module 20. The core rod assembly 10 is used to mold the inner wall of the bottle preform, and the die module 20 is used to mold the outer shape of the bottle mouth of the bottle preform, so the thread of the bottle mouth is formed by the molding part 1. The locking part 2 is arranged on the outer ring of the forming part 1. The locking part 2 is embedded in the core rod assembly 10 and the flange 50, and is used to fix the forming part 1 to prevent the forming force of the bottle mouth from squeezing the die module 20 during the forming process, so that the die module 20 is separated, which affects the forming of the bottle mouth. The forming part 1 is fixed by using the locking part 2 to ensure the quality of the parting line of the bottle mouth and the size of the bottle mouth, and to avoid the failure of the bottle mouth forming. The cooling part 3 is arranged on the outer ring of the forming part 1. Specifically, the cooling part 3 is arranged in the locking part 2. The forming of the bottle mouth is cooled by the cooling part 3 to prevent the temperature of the bottle mouth from being too high and causing the forming size of the bottle mouth to be deformed. In addition, when the temperature is too high, the wall thickness of the bottle mouth will be more difficult to control, resulting in the quality of the bottle mouth not meeting the requirements. Therefore, the bottle mouth is cooled by the cooling part 3 to ensure that the size and wall thickness of the bottle mouth after forming meet the high precision requirements. In addition, when the bottle mouth is formed, since the bottle mouth is located at the end of the whole bottle blank, gas accumulation is easy to occur. If the gas in the bottle mouth cannot be discharged in time, the bottle mouth will appear material shortage, bubbles and burns. Therefore, it is necessary to discharge the accumulated gas in the bottle mouth in time. Therefore, the accumulated gas is discharged in time through the exhaust part 4 to avoid the occurrence of adverse conditions during the bottle mouth molding and ensure the smooth molding of the bottle mouth.

[0039] Specifically, the cooling unit 3 includes a cooling pipeline 31, a water outlet 32 ​​and a water inlet 33. The cooling pipeline 31 is arranged around the outer ring of the molding unit 1. The water outlet 32 ​​and the water inlet 33 are respectively arranged at both ends of the cooling pipeline 31. The cooling water enters the cooling pipeline 31 from the water inlet 33 and flows in the cooling pipeline 31. While the cooling water flows in the cooling pipeline 31, it absorbs the heat generated when the bottle mouth in the molding unit 1 is formed. Then the cooling water flows along the cooling pipeline 31 and flows to the water outlet 32, and finally is discharged from the water outlet 32. In this embodiment, as Figure 4As shown, the cooling pipeline 31 is composed of a plurality of straight pipes, which are arranged around the outer ring of the forming part 1. The cooling water flows in the straight pipes and takes away the heat generated when the bottle mouth is formed in the forming part 1. However, the straight pipes are not completely fitted with the forming part 1, so that there is a gap between the straight pipes and the forming part 1, resulting in a poor cooling effect of the cooling part 3. Therefore, in order to improve the cooling effect of the cooling part 3, in other embodiments, the cooling pipeline 31 can be composed of a plurality of curved pipes, which can be completely fitted with the outer ring of the forming part 1. By making the curved pipes and the forming part 1 completely fit, the gap between the curved pipes and the forming part 1 is eliminated, which is more conducive to the cooling water in the cooling pipe to absorb the heat in the forming part 1, so that the heat in the forming part 1 can be discharged in time, thereby improving the cooling effect of the cooling part 3.

[0040] The cooling pipeline 31 includes a main cooling pipe 311, a water inlet cooling pipe 312 and a water outlet cooling pipe 313. The main cooling pipe 311 is stacked with the water inlet cooling pipe 312 and the water outlet cooling pipe 313. The main cooling pipe 311 is arranged above the water inlet cooling pipe 312 and the water outlet cooling pipe 313. The water inlet cooling pipe 312 and the water outlet cooling pipe 313 are respectively connected to the main cooling pipe 311. The water inlet cooling pipe 312 and the water outlet cooling pipe 313 are arranged adjacent to each other. The water inlet 33 is arranged at the end of the water inlet cooling pipe 312, and the water outlet 32 ​​is arranged at the end of the water outlet cooling pipe 313. The water inlet 33 and the water outlet 32 ​​are arranged at the same height, and the angle between the water inlet 33 and the water inlet cooling pipe 312 is small, and the angle between the water outlet 32 ​​and the water outlet cooling pipe 313 is small, so as to reduce the occupied position of the cooling part 3, increase the contact area between the cooling part 3 and the molding part 1, and thereby improve the cooling efficiency of the cooling part 3.

[0041] When the water inlet cooling pipe 312 and the water 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 water 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, so as to ensure the quality of the bottle mouth molding; and let the cooling water flow smoothly from the main cooling pipe 311 to the water outlet cooling pipe 313, and discharge the cooling water that has absorbed the heat from the water outlet 32 ​​in time, so that the cooling water can continue to flow in the main cooling pipe 311. Therefore, in the present application, the cooling pipeline 31 also includes a water inlet connector 314 and a water outlet connector 315. The water inlet connector 314 connects the water inlet cooling pipe 312 and the main cooling pipe 311, and the water outlet connector 315 connects the main cooling pipe 311 and the water outlet cooling pipe 313. The water inlet connector 314 and the water outlet connector 315 are cylindrical, and the end of the water inlet connector 314 is provided with a port for connecting the water inlet cooling pipe 312 and the main cooling pipe 311, and the water outlet connector 315 is provided with a port for connecting the water outlet cooling pipe 313 and the main cooling pipe 311. Therefore, one end of the water inlet cooling pipe 312 and the main cooling pipe 311 can be inserted into the port of the water inlet connector 314, so that the cooling water flowing in the water inlet cooling pipe 312 can flow to the main cooling pipe 311 through the guidance of the water inlet connector 314. Similarly, the other ends of the outlet cooling pipe 313 and the main cooling pipe 311 are inserted into the ports of the outlet connector 315, so that the cooling water flowing in the main cooling pipe 311 passes through the outlet connector 315, and then the cooling water that absorbs the heat in the finished mold part 1 is smoothly discharged from the water outlet 32.

[0042] When the bottle mouth is formed in the forming part 1, the forming part 1 needs to be locked to prevent the two mutually fitting templates used to form the mouth mold module 20 from bouncing apart due to the force of the bottle mouth forming during the forming of the bottle blank, thereby affecting the size of the mold line of the bottle mouth after the bottle mouth is formed. Because the bottle mouth part needs to be in direct contact with the customer's mouth, if the mold line of the bottle mouth does not meet the requirements, it will affect the customer's experience of use. Therefore, it is necessary to control the production process during the bottle mouth forming so that the mold line of the bottle mouth meets the requirements to avoid giving the customer a bad experience. Therefore, in the present application, the locking part 2 is used to lock the forming part 1 to keep the forming part 1 stable. Specifically, as Figure 5As shown, the locking portion 2 includes a first locking edge 21, which shrinks inwards and is embedded in the flange 50. The first locking edge 21 is fastened by the flange 50 to lock the molding portion 1 and the mouth mold module 20, so as to avoid the mouth mold module 20 being bounced open during the bottle mouth molding and affecting the quality of the bottle mouth molding, thereby ensuring the quality of the parting line and the size of the bottle mouth. Furthermore, in order to strengthen the fastening of the mouth mold module 20, the locking portion 2 also includes a second locking edge 22, which shrinks inwards and is embedded in the core rod assembly 10. The first locking edge 21 is fastened by the core rod assembly 10 to lock the molding portion 1, thereby further fastening the mouth mold module 20 and ensuring the molding quality of the bottle mouth. In other embodiments, when the quality requirements for the bottle mouth molding are relatively low, only the first locking edge 21 can be used for fastening, such as Figure 6 As shown, the original second locking edge 22 can be cancelled, and only the first locking edge 21 is used to lock the molded part 1, or a straight edge can be used instead of the original second locking edge 22, such as Figure 7 As shown, the locking portion 2 is balanced by the straight edge, and the function of fastening the die module 20 is not performed by the straight edge.

[0043] Furthermore, in order to provide support for the first locking edge 21 and the second locking edge 22, the locking portion 2 also includes a mounting edge 23, which is disposed between the first locking edge 21 and the second locking edge 22, and is also disposed around the outer ring of the molding portion 1, and provides support for the first locking edge 21 and the second locking edge 22 through the mounting edge 23, and the mounting edge 23 can also provide support for the molding portion 1. In addition, an installation space is reserved in the mounting edge 23, and the installation space is used for installing the cooling portion 3, so that the cooling portion 3 is disposed in the mounting edge 23, thereby improving the integrity of the die module 20, and thereby improving the service life of the die module 20.

[0044] When the bottle mouth is being formed, it needs to be carried out in the forming part 1, and the outer shape of the bottle mouth is shaped by the forming part 1. Specifically, the forming part 1 includes a forming inner wall 11, and the forming inner wall 11 is used to shape the outer shape of the bottle mouth. When the plastic particle melt flows into the forming part 1 and cools and solidifies, the forming part gradually fits with the forming inner wall 11, so that the outer shape of the bottle mouth is shaped by the forming inner wall 11. In addition, in order to generate threads on the bottle mouth so that the bottle cap can be connected to the bottle mouth through threads and seal the bottle, an additional structure needs to be provided at this time to form threads on the outer ring of the bottle mouth when the bottle mouth is formed. Specifically, in the present application, the molding portion 1 also includes a plurality of molding grooves 12, and the molding grooves 12 are arranged at intervals on the molding inner wall 11. When the plastic particle melt cools and solidifies and fits the molding inner wall 11, a portion of the plastic particle melt is embedded in the molding groove 12. After the bottle mouth is cooled and solidified, the plastic particle melt in the molding groove 12 is hardened and formed, thereby forming a protrusion at a corresponding position on the bottle mouth, and then forming a thread on the bottle mouth. Subsequently, the bottle cap can be threadedly connected to the bottle mouth, and the bottle cap is used to seal the bottle to ensure the sealing of the bottle.

[0045] When the bottle mouth is formed, a gas forming part will be generated during the cooling and solidification of the plastic particle melt. After the bottle mouth is formed, the gas in the forming part 1 needs to be discharged in time to avoid gas accumulation leading to material shortage, bubbles, burning and other undesirable phenomena at the bottle mouth. Therefore, the die module 20 also includes an exhaust part 4, which is arranged on the forming part 1 to discharge the gas during the bottle mouth molding to ensure the quality of the bottle mouth molding.

[0046] Specifically, the exhaust portion 4 includes an inner exhaust groove 41, an air outlet 42 and an outer exhaust groove 43. The inner exhaust groove 41 is arranged on the molding portion 1 of the die module 20. Figure 8 and Fig. 9 As shown, it is ensured that when the bottle mouth is formed in the forming part 1, the gas can be discharged through the intra-cavity exhaust groove 41, the gas outlet 42 is arranged on the side of the forming part 1, the gas outlet 42 is connected with the intra-cavity exhaust groove 41, and the gas in the intra-cavity exhaust groove 41 is discharged through the gas outlet 42 to avoid the accumulated gas in the forming part 1 affecting the forming of the bottle mouth, the extra-cavity exhaust groove 43 is arranged on the locking part 2 of the mouth die module 20, the extra-cavity exhaust groove 43 is connected with the gas outlet 42, when the gas in the forming part 1 is guided to the gas outlet 42 by the intra-cavity exhaust groove 41, it is also necessary to discharge the mouth die module 20 from the gas outlet 42 to avoid the gas accumulation at the mouth die module 20 affecting the use of the mouth die module 20, so that the part of the gas flowing to the gas outlet 42 is discharged through the extra-cavity exhaust groove 43 on the mouth die module 20, and then the extra-cavity exhaust groove 43 discharges the gas of the mouth die module 20.

[0047] The intracavity exhaust groove 41 includes a conformal exhaust groove 411, which is arranged on the inner wall of the forming part 1, that is, arranged on the forming inner wall 11. The conformal exhaust groove 411 is in contact with the thread of the bottle mouth. When the bottle mouth is gradually formed, the gas used for bottle mouth forming gradually enters the forming part 1 from the conformal exhaust groove 411, so as to avoid gas accumulation in the forming part 1. However, the bottle mouth is generally designed with a support ring, and 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 depth of the forming inner wall 11 at the position of the bottle mouth support ring is relatively deep, which is not conducive to the discharge of gas. Therefore, in view of the position of the bottle mouth support ring, the intracavity exhaust groove 41 also includes a reinforced exhaust groove 412, which is arranged on the inner wall of the forming part 1, and is arranged at a position corresponding to the support ring of the bottle mouth. The two ends of the reinforced exhaust groove 412 are respectively connected with the conformal exhaust groove 411, so as to facilitate the discharge of gas when the bottle mouth is formed.

[0048] When the gas flows out of the molding part 1, it flows through the inner exhaust groove 41 and the gas outlet 42, and finally passes through the outer exhaust groove 43 to discharge the die module 20. Therefore, in order to allow the gas to be discharged smoothly from the die module 20, the outer exhaust groove 43 includes a conical surface groove 431, which is respectively arranged on the outer rings of the first locking edge 21, the second locking edge 22 and the mounting edge 23 of the locking part 2. Fig.10 As shown, the gas is guided to gradually flow from the gas outlet 42 to the outside of the molding part 1 and finally be discharged from the die module 20. Furthermore, in order to allow the gas to be discharged from the die module 20 more smoothly, the extra-cavity exhaust groove 43 also includes a cross-sectional groove 432, and the cross-sectional groove 432 is arranged on the end faces 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 finally be discharged from the ends of the first locking edge 21 and the second locking edge 22, so that the gas can be discharged from the die module 20 more smoothly.

[0049] At this time, the exhaust part 4 is provided with a plurality of air outlets 42, which are respectively connected with the conformal exhaust groove 411 and the reinforced exhaust groove 412, so as to discharge the gas in the molding part 1 out of the molding part 1, and then the air outlet 42 is also connected with the conical groove 431, and then the gas discharged from the molding part 1 is guided to the outside of the die module 20 through the conical groove 431 and the cross-section groove 432, and finally the gas is discharged from the molding part 1 to the outside of the die module 20 through the exhaust groove in the cavity, the air outlet and the exhaust groove outside the cavity in the order of avoiding gas accumulation.

[0050] Usually, the cross-section of the exhaust groove 41 in the cavity is trapezoidal, square or semicircular, but in order to allow the gas to flow better, in the present application, the cross-section of the exhaust groove 41 in the cavity is square. Similarly, the cross-section of the exhaust groove 43 outside the cavity is also square in the present application.

[0051] Therefore, when the mouth of the bottle is produced by the mouth die module 20 in the present application, the first locking edge 21 is embedded in the flange 50, and the second locking edge 22 is embedded in the core rod assembly 10, and the installation of the mouth die module 20 is completed, and then the water supply device is connected to the water inlet 33, and the recovery device is connected to the water outlet 32, so that the cooling water flows from the water inlet 33 to the water inlet cooling pipe 312, and then flows through the water inlet connector 314, the main cooling pipe 311, the water outlet cooling pipe 313, and the water outlet connector 315, and finally flows to the water outlet 32, and is discharged through the water outlet 32. During the flow of cooling water, the cooling water absorbs the heat generated by the bottle mouth molding, so as to avoid the temperature during the bottle mouth molding being too high and affecting the molding of the bottle mouth. During the process of bottle mouth molding, the exhaust part 4 timely discharges the gas in the molding part 1 to avoid gas stagnation in the molding part 1, and the cooling part 3 cools the molding part 1 at the same time, so as to ensure that the bottle mouth can be cooled and solidified in time after it is formed.

[0052] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A die module, consisting of two templates, characterized in that: include: A molding part, the molding part is used to mold the thread of the bottle mouth; A locking portion, the locking portion being arranged on the outer ring of the forming portion, the locking portion being embedded in the core rod assembly and the flange to fix the template; A cooling part is arranged on the outer ring of the forming part to cool the forming of the bottle mouth.

2. The die module according to claim 1, characterized in that: The cooling part comprises a cooling pipeline, a water outlet and a water inlet; The cooling pipeline is arranged in an outer ring of the forming part, and the water outlet and the water inlet are respectively arranged at two ends of the cooling pipeline.

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

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

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

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

7. The die module according to claim 6, characterized in that: The locking portion further includes a mounting edge, the mounting edge is arranged between the first locking edge and the second locking edge, and the cooling portion is arranged inside the mounting edge.

8. The die module according to claim 1, characterized in that: The forming part comprises a forming inner wall for forming the bottle mouth.

9. The die module according to claim 8, characterized in that: The molding part further comprises a plurality of molding grooves, and the molding grooves are arranged at intervals on the molding inner wall to form threads on the bottle mouth.

10. The die module according to any one of claims 1 to 9, characterized in that: The die module further comprises an exhaust portion, which is arranged inside the molding portion to exhaust gas generated during molding of the bottle mouth.

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