Cover pressing die

Abstract

The utility model relates to the field of container production, in particular to a cap pressing die which comprises an upper die assembly, a lower die assembly, a cooling rod and a fixing assembly, the upper die assembly comprises an inner die core and an outer die core, the outer die core is arranged on the inner die core in a sleeving mode, a drain hole is formed in the top of the outer die core, and the lower die assembly is installed at the lower end of the inner die core so that a cavity for bottle cap production can be assembled and formed; the cooling rod penetrates into the inner mold core, and the fixing assembly is fixed to the cooling rod and the upper mold assembly so as to fix the cooling rod and the upper mold assembly. The heat dissipation problem of the cap pressing die in the prior art is solved, the quality of bottle caps is guaranteed, the service life of the cap pressing die is prolonged, and meanwhile the production efficiency of the bottle caps is improved.

Description

Technical Field

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

[0002] In bottle manufacturing, the bottle body and bottle cap are processed separately. The bottle cap is usually produced by a capping mold. The various parts of the capping mold are assembled together to form the cavity of the bottle cap. When the bottle cap is formed, the material block is placed into the formed cavity and the bottle cap is produced by compression molding.

[0003] However, a lot of heat is generated during the production of bottle caps. At this time, it is necessary to dissipate the generated heat in time. Due to the limited space of the capping mold, the arrangement of the capping mold is very compact, and the heat is more likely to accumulate. If the heat generated during the compression molding process is not dissipated in time, it will affect the quality of the final bottle cap and shorten the service life of the capping mold.

[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 capping mold that solves the heat dissipation problem of the capping mold in the prior art, and extends the service life of the capping mold while ensuring the quality of the bottle cap.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: a capping mold, comprising:

[0007] The upper mold assembly includes an inner mold core and an outer mold core, with the outer mold core sleeved on the inner mold core. A drainage hole is provided at the top of the outer mold core.

[0008] A lower mold assembly is installed at the lower end of the inner mold core to assemble and form a cavity for bottle cap production;

[0009] Cooling rod, the cooling rod being inserted into the inner mold core;

[0010] A fixing component is fixed to the cooling rod and the upper mold assembly to secure the cooling rod and the upper mold assembly.

[0011] Furthermore, the lower mold assembly includes a lower mold cylinder, a lower mold base, a lower mold water distribution plate, an adjusting shim, a cover edge mold, and a cover surface mold. The cover surface mold is installed at the bottom of the cover edge mold, and the top of the cover surface mold is embedded in the upper mold assembly. The adjusting shim, the lower mold water distribution plate, the lower mold base, and the lower mold cylinder are sequentially installed below the cover surface mold.

[0012] Furthermore, the lower mold assembly also includes a water distribution sleeve, which is mounted on the adjusting shim.

[0013] Furthermore, the lower mold base is provided with a plurality of water return holes, which are connected to the water distribution plate of the lower mold;

[0014] The adjusting shim, the lower mold water distribution plate, and the lower mold base are provided with notches, and the water distribution sleeve is provided with a boss, which is connected to the notch.

[0015] Furthermore, the cooling rod includes a forming section and a mating section, the forming section and the mating section being detachably connected, and the forming section extending into the lower mold assembly.

[0016] Furthermore, the inner mold core also includes an air groove, which is disposed between the inner mold core and the cooling rod.

[0017] Furthermore, the fixing component includes an inner bushing fixing seat and a mold core fixing seat, wherein the inner bushing fixing seat is sleeved on the mold core fixing seat.

[0018] Furthermore, the inner liner fixing seat has a fixing groove, and the mold core fixing seat has a fixing block. The fixing block is embedded in the fixing groove to restrict the rotation of the inner liner fixing seat.

[0019] Furthermore, the fixing component also includes a sealing ring, and the inner bushing fixing seat is also provided with a sealing groove, and the sealing ring is installed in the sealing groove.

[0020] Furthermore, the mold core fixing seat is also provided with an oil seal.

[0021] Beneficial effects:

[0022] This application provides a capping mold, which consists of an upper mold assembly and a lower mold assembly assembled together to form a cavity. A material block is placed into the cavity, and a bottle cap is produced by compression molding. In the upper mold assembly, water flow holes and water channels are formed along the water flow holes on the outer mold core, thereby cooling and dissipating heat through the outer mold core. The cooling water flows in the water channels of the outer mold core, making the cooling surface more uniform. In addition, the cooling surface is increased when the cooling water flows in the outer mold core, which effectively improves the cooling effect. It also avoids the inner mold core from being easily deformed due to processing, thereby increasing the service life of the capping mold. Furthermore, the production efficiency of the bottle cap is improved by further improving the cooling rod, which can cool the formed bottle cap in time. This process also ensures the quality of the bottle cap. The fixing component fixes the cooling rod and the upper mold assembly to ensure the cooling effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the capping mold in an embodiment of this application;

[0024] Figure 2This is a schematic diagram of the inner mold core and outer mold core in the embodiments of this application;

[0025] Figure 3 This is a schematic diagram of the inner mold core and outer mold core from another angle in an embodiment of this application;

[0026] Figure 4 This is a front view of the capping mold in an embodiment of this application;

[0027] Figure 5 for Figure 4 A cross-sectional view along the DD direction;

[0028] Figure 6 for Figure 5 A magnified view of part of C;

[0029] Figure 7 This is an exploded view of the lower mold assembly in an embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the cooling rod in an embodiment of this application;

[0031] Figure 9 for Figure 8 A cross-sectional view along the AA direction;

[0032] Figure 10 This is a schematic diagram of the fixing component in an embodiment of this application;

[0033] Figure 11 for Figure 10 A cross-sectional view along the BB direction;

[0034] Figure 12 This is a schematic diagram showing the cooperation between the inner bushing fixing seat and the mold core fixing seat in an embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Upper mold assembly; 11. Inner mold core; 111. Air groove; 12. Outer mold core; 121. Drain hole; 2. Lower mold assembly; 21. Cover edge mold; 22. Cover surface mold; 23. Adjusting shim; 24. Lower mold water distribution plate; 241. Notch; 25. Lower mold base; 251. Water return hole; 252. Fixing screw; 26. Lower mold cylinder; 27. Water distribution sleeve; 271. Boss; 28. Lower mold locking ring; 29. ​​Outer frame; 3. Cooling rod; 31. Forming section; 32. Mating section; 4. Fixing assembly; 41. Inner bushing fixing seat; 411. Indicator ring; 412. Fixing groove; 413. Oil seal; 42. Mold core fixing seat; 421. Fixing block; 43. Sealing ring; 44. Spring ring; 441. Spring washer; 45. Forming sleeve; 46. Demolding sleeve. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] 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.

[0040] This utility model provides a capping mold, such as Figures 1 to 12 As shown, a capping mold is used to produce bottle caps by compression molding a block of material. Specifically, the capping mold includes an upper mold assembly 1, a lower mold assembly 2, a cooling rod 3, and a fixing assembly 4. The upper mold assembly 1 includes an inner mold core 11 and an outer mold core 12. The outer mold core 12 is fitted onto the inner mold core 11, and the lower end of the inner mold core 11 has a cavity for installing the lower mold assembly 2, so that the upper mold assembly 1 and the lower mold assembly 2 can be combined to form a cavity for bottle cap production. In order to prevent the capping mold from overheating during the compression molding process, a water channel needs to be set in the upper mold assembly 1 to dissipate heat from the capping mold. The traditional method is to stretch a long water channel on the inner mold core 11 so that cooling water flows in the water channel to cool the inner mold core 11 and the outer mold core 12, thereby cooling the capping mold. However, this will make the inner mold core 11 prone to deformation, which will shorten the service life of the capping mold. Therefore, in this application, to avoid shortening the service life of the capping mold due to deformation of the inner mold core 11, a drainage hole 121 is provided on the top of the outer mold core 12, such as... Figure 2 As shown, elongated water channels are formed inside the outer mold core 12 through water outlets 121, allowing cooling water to flow within the channels of the outer mold core 12. This makes the cooling surface more uniform, and the flow of cooling water within the outer mold core 12 also increases the cooling surface area, effectively improving the cooling effect. It also prevents the inner mold core 11 from easily deforming due to processing, thus extending the service life of the capping mold. Specifically, in this embodiment, four water outlets 121 are formed on each side of the top of the outer mold core 12, and elongated water channels are formed inside the outer mold core 12 through the water outlets 121. This allows cooling water to flow within the channels of the outer mold core 12, cooling both the outer mold core 12 and the inner mold core 11.

[0041] like Figures 4 to 7As shown, the lower mold assembly 2 includes a lower mold cylinder 26, a lower mold base 25, a lower mold water distribution plate 24, an adjusting shim 23, a cap edge mold 21, and a cap surface mold 22. The cap surface mold 22 is installed at the bottom of the cap edge mold 21 and is embedded in the cavity formed by the cap edge mold 21 and the upper mold assembly. At this time, the cap surface mold 22, the cap edge mold 21, and the upper mold assembly 1 form a cavity for bottle cap production. After the material block is placed in the cavity, the bottle cap is produced by compression molding. Below the cap surface mold 22, from top to bottom, the adjusting shim 23, the lower mold water distribution plate 24, the lower mold base 25, and the lower mold cylinder 26 are installed sequentially. The lower mold cylinder 26 is used to squeeze the cap surface mold 22, so that the material block in the cavity becomes a bottle cap. The lower mold base 25 supports the cap surface mold 22, and water flows in the lower mold base 25 to cool the structure inside the lower mold assembly 2 and maintain the normal operation of the structure inside the lower mold assembly 2. To improve the cooling efficiency of the various structures within the lower mold assembly 2, a lower mold water distribution plate 24 is provided on the lower mold base 25. Water from the lower mold base 25 flows into the lower mold return plate and then back into the lower mold base 25, increasing the flow time of water within the lower mold assembly 2 and improving cooling efficiency. To further enhance cooling efficiency, return holes 251 are provided on both the lower mold base 25 and the lower mold water distribution plate 24. These return holes 251 connect the lower mold base 25 and the lower mold water distribution plate 24, allowing water to flow more smoothly. In this embodiment, the lower mold base 25 and the lower mold water distribution plate 24 each have eight return holes 251, with each hole corresponding to the previous one, allowing water to flow between the lower mold base 25 and the lower mold water distribution plate 24. The adjusting shim 23 is set between the lower mold water distribution plate 24 and the cover mold 22. The adjusting shim 23 prevents the lower mold cylinder 26 from squeezing too much, which would damage the cover mold 22 and the cover edge mold 21. Meanwhile, in order to fix the lower mold cylinder 26 on the lower mold base 25 and prevent the lower mold cylinder 26 from detaching from the lower mold assembly 2 during use due to reaction force, the lower mold base 25 is also provided with fixing screws 252. When assembling the lower mold assembly 2, the fixing screws 252 are screwed into the lower mold cylinder 26 to restrict the movement of the lower mold cylinder 26 relative to the lower mold base 25 and prevent the lower mold cylinder 26 from falling out of the lower mold assembly 2. Furthermore, a lower mold locking ring 28 is also fitted in the gap between the lower mold cylinder 26 and the outer frame 29 of the lower mold assembly 2. The lower mold locking ring 28 is threaded to the inner wall of the outer frame 29. At the same time, filling the gap between the lower mold cylinder 26 and the outer frame 29 with the lower mold locking ring 28 can provide support for other structures in the lower mold assembly 2, so that the lower mold cylinder 26 can better act on the material block in the cavity and form the bottle cap as soon as possible.

[0042] Meanwhile, to prevent the cooling water flowing in the lower mold base 25 and the lower mold water distribution plate 24 from affecting the cap edge mold 21 and the cap surface mold 22, and to prevent the cap edge mold 21 and the cap surface mold 22 from being cooled and affecting the production of the bottle cap, the lower mold assembly 2 also includes a water distribution sleeve 27, which is installed on the adjusting shim 23. Figure 6 As shown, the water jacket 27 simultaneously clamps the outer ring of the cap edge mold 21 and the cap surface mold 22, thereby preventing the cap edge mold 21 and the cap surface mold 22 from coming into contact with the cooling water, thus ensuring that the production of the bottle cap will not be affected by a sudden drop in temperature.

[0043] When assembling the various structures of the lower mold assembly 2, to avoid misalignment of the water channels within the lower mold assembly 2, the water distribution plate 24 of the lower mold and the return water holes 251 of the lower mold base 25 are made to correspond one-to-one. Also, to facilitate subsequent processing and manufacturing, each mechanism of the lower mold assembly 2 employs a foolproof design, such as... Figure 6 and Figure 7 As shown, notches 241 are provided on the adjusting shim 23, the lower mold water distribution plate 24, and the lower mold base 25, and a boss 271 is provided on the water distribution sleeve 27. The boss 271 is connected to the notch 241. That is, when assembling these structures, first align the notch 241 on the lower mold water distribution plate 24 with the notch 241 on the lower mold base 25. After alignment, install the lower mold water distribution plate 24 inside the lower mold base 25. At the same time, the return water holes 251 on the lower mold water distribution plate 24 and the lower mold base 25 are also aligned one by one. Then, align the notch 241 on the adjusting shim 23 with the notch 241 on the lower mold water distribution plate 24. After alignment, install the adjusting shim 23 on the lower mold water distribution plate 24. Finally, align the boss 271 on the water distribution sleeve 27 with the notch 241 and install the water distribution sleeve 27 on the adjusting shim 23 to complete the assembly of each structure of the lower mold assembly 2.

[0044] like Figure 1 , Figure 8 and Figure 9As shown, when the material block in the cavity is compressed to form a bottle cap, it is also necessary to cool the cavity at an appropriate time to speed up the formation of the bottle cap and stabilize its shape. Therefore, the capping mold also includes a cooling rod 3. The cooling rod 3 cools the cavity to form a stable bottle cap in a timely manner. Specifically, the cooling rod 3 includes a forming section 31 and a mating section 32. The forming section 31 and the mating section 32 are detachably connected. The forming section 31 extends into the lower mold assembly 2 and into the cavity formed by the cap edge mold 21, the cap surface mold 22 and the upper mold assembly 1. One end of the mating section 32 is detachably connected to the forming section 31, and the other end is connected to a water supply structure to transfer water from the water supply structure to the forming section 31 to cool the cavity in a timely manner to form the bottle cap. The split design of the cooling rod 3 makes it easier to process, thereby improving the manufacturability. At the same time, the split design of the cooling rod 3 allows for separate processing, and different materials are used depending on the function. The forming section 31 uses a material with better thermal conductivity to improve the cooling effect of the forming section 31, while the mating section 32 uses a material with good wear resistance. In addition, the split design also allows for the redesign of the forming section 31, thereby improving the shape of the water channel, reducing the water accumulation area, and making it more conducive to the forming and cooling of the bottle cap, thereby improving production efficiency.

[0045] After the bottle cap is formed and completely cooled, the capping mold needs to be demolded to remove the bottle cap. During demolding, in addition to the demolding sleeve 46 moving under the action of the machine cam, internal air blowing is also required to assist in demolding. Therefore, in order to enable the capping mold to demold and remove the formed bottle cap through air blowing, an air groove 111 is opened between the inner mold core 11 and the cooling rod 3. Figure 3 As shown, gas can be blown into the capping mold from the outside, so that the blown gas reaches the inside of the bottle cap in the cavity along the air groove 111. The air groove 111 enhances the blowing effect, thereby improving the efficiency of the capping mold demolding and making it easier to remove the formed bottle cap in time.

[0046] When the outer mold core 12 in the upper mold assembly 1 is fitted over the inner mold core 11, and the cooling rod 3 is inserted into the inner mold core 11, these structures need to be fixed to prevent the cooling rod 3 from falling out of the inner mold core 11 and to prevent the outer mold core 12 from falling off the inner mold core 11. Therefore, a fixing assembly 4 is needed to fix these structures. The fixing assembly 4 includes an inner bushing fixing seat 41 and a mold core fixing seat 42. The inner bushing fixing seat 41 is fitted onto the mold core fixing seat 42. For details, please refer to [reference needed]. Figures 10 to 12When the cooling rod 3 is inserted into the inner mold core 11, a portion of the cooling rod 3 is located outside the inner mold core 11. Similarly, when the outer mold core 12 is fitted onto the outer ring of the inner mold core 11, a portion of the inner mold core 11 is not covered by the outer mold core 12. Therefore, in order to protect the inner mold core 11, the outer mold core 12, and the cooling rod 3, and to fix the relative positions of the inner mold core 11, the outer mold core 12, and the cooling rod 3, the mold core fixing seat 42 is fitted onto the cooling rod 3 located outside the inner mold core 11. At the same time, the lower end of the mold core fixing seat 42 extends to the inner mold core 11 and the outer mold core 12, so that the mold core fixing seat 42 is fitted onto the inner mold core 11, the outer mold core 12, and the cooling rod 3 simultaneously, fixing the inner mold core 11, the outer mold core 12, and the cooling rod 3, and preventing relative rotation between these structures. In addition, to further enhance the fixing and protection of the mold core fixing seat 42, an inner bushing fixing seat 41 is also fitted outside the mold core fixing seat 42. The inner bushing fixing seat 41 further enhances the fixing and protection of the mold core fixing seat 42. At the same time, an indicator ring 411 is provided at the upper end of the inner bushing fixing seat 41. The outer diameter of the indicator ring 411 is larger than the outer diameter of other positions of the inner bushing fixing seat 41, thereby indicating the fitted position of the inner bushing fixing seat 41. To further enhance the fixing effect, a spring ring 44 is fitted on the inner bushing fixing seat 41. In addition, the spring ring 44 can also balance the pressure of the lower mold cylinder 26 during the bottle cap forming, avoiding excessive pressure from the lower mold cylinder 26 that could damage the bottle cap. At the same time, the spring ring 44 can also assist in ejecting the bottle cap a certain distance during mold opening, so as to remove the formed bottle cap in time, thereby improving production efficiency. In addition, in order to fix the spring ring 44, a spring washer 441 is installed below the spring ring 44. The spring washer 441 is arranged around the outer ring of the inner bushing fixing seat 41 to fix the spring ring 44 and prevent the spring ring 44 from falling off during use.

[0047] Furthermore, in order to restrict the rotation of the inner bushing fixing seat 41 and to fix the relative position of the mold core fixing seat 42 and the inner bushing fixing seat 41, the inner bushing fixing seat 41 is provided with a fixing groove 412, such as... Figure 12As shown, the fixing groove 412 is located below the indicator ring 411. In this embodiment, the fixing groove 412 is elliptical; in other cases, the fixing groove 412 may be of other shapes. Correspondingly, the mold core fixing seat 42 is provided with a fixing block 421, which is embedded in the fixing groove 412. This restricts the rotation of the inner bushing fixing seat 41 through the cooperation between the fixing block 421 and the fixing groove 412. The fixing block 421 is detachably installed on the mold core fixing seat 42, so that the fixing block 421 can be removed in time for maintenance of the mold core fixing seat 42. In this embodiment, the fixing block 421 includes screws, and the mold core fixing seat 42 has screw holes at the installation position of the fixing block 421. Therefore, when it is necessary to install the fixing block 421 on the mold core fixing seat 42, the screws are screwed into the screw holes to complete the installation of the fixing block 421. When it is necessary to remove the fixing block 421, the screws are unscrewed to remove the fixing block 421 from the mold core fixing seat 42.

[0048] Since the gas used for forming the bottle cap in the capping mold enters through the mold core fixing seat 42 and then enters the air groove 111 between the inner mold core 11 and the cooling rod 3, it is necessary to prevent the gas from entering the gap between the mold core fixing seat 42 and the inner mold core 11. Therefore, in this application, the fixing component 4 also includes a sealing ring 43. The sealing ring 43 is provided to prevent gas from entering the gap between the mold core fixing seat 42 and the inner mold core 11. In order to install the sealing ring 43, the mold core fixing seat 42 is also provided with a sealing groove, and the sealing ring 43 is installed in the sealing groove. Because the inner mold core 11 has a small diameter and a small wall thickness, opening a sealing groove on the inner mold core 11 would reduce its strength and make it easy to be damaged. Therefore, in this embodiment, the sealing groove is set on the mold core fixing seat 42. Since the mold core fixing seat 42 has a larger diameter and a thicker wall, opening a sealing groove on the mold core fixing seat 42 has little impact on the strength of the mold core fixing seat 42 and will not cause the mold core fixing seat 42 to be damaged during use.

[0049] Meanwhile, in order to reduce the loss of gas into the air groove 111 and to increase the blowing volume, an oil seal 413 is added to the mold core fixing seat 42. The oil seal 413 prevents gas from leaking out from the gap between the mold core fixing seat 42 and the cooling rod 3, thereby increasing the blowing volume of the bottle cap, so as to facilitate the forming of the bottle cap and timely removal of the bottle cap from the capping mold.

[0050] When the material block is molded into a bottle cap in the cavity, in addition to shaping the edge and surface of the bottle cap by the edge mold 21 and the surface mold 22, it is also necessary to ensure that when the bottle cap installed on the bottle mouth is opened, the ring of the bottle cap breaks off and is stuck on the bottle cap. Therefore, in this application, the fixing component 4 also includes a molding sleeve 45. The molding sleeve 45 is sleeved on the outer ring of the outer mold core 12, and the lower part of the inner liner fixing seat 41 is clamped on the molding sleeve 45 to prevent the molding sleeve 45 from falling off and affecting the shaping of the bottle cap. The bottom of the molding sleeve 45 contacts the cavity where the bottle cap is formed, thereby processing the forming leaf. After the bottle cap ring breaks off through the leaf, the ring of the bottle cap is stuck on the bottle cap and is stuck on the bottle to prevent it from falling off.

[0051] After the bottle cap is formed in the cavity, it needs to be removed promptly so that the capping mold can produce another bottle cap. Therefore, in this application, the fixing component 4 also includes a demolding sleeve 46, which allows the formed bottle cap to be removed promptly. Specifically, the demolding sleeve 46 is fitted around the outer ring of the inner liner fixing seat 41, and the lower end of the demolding sleeve 46 also abuts against the forming sleeve 45. Figure 10 As shown, the formed bottle cap is then promptly removed from the lower end of the demolding sleeve 46.

[0052] Therefore, when forming bottle caps from material blocks using the capping mold in this application, the upper mold assembly 1 is assembled first, and the outer mold core 12 is fitted onto the outer ring of the inner mold core 11. After the fitting is completed, the cooling rod 3 is inserted into the inner mold core 11. Then, the inner liner fixing seat 41 and the mold core fixing seat 42 are assembled. By embedding the fixing block 421 into the fixing groove 412, the relative rotation of the inner liner fixing seat 41 with respect to the mold core fixing seat 42 is restricted. The sealing ring 43 is placed in the sealing groove 413, and an oil seal 413 is added to the mold core fixing seat 42. Then, the assembly of the mold core fixing seat 42 and the inner liner fixing seat 41 is fitted onto the assembly of the cooling rod 3 and the upper mold assembly 1. Next, the spring ring 44 and the spring washer 441 are fitted under the indicator ring 411. Finally, install the various structures within the lower mold assembly 2, sequentially installing the cap edge mold 21, cap edge mold 22, adjusting shim 23, lower mold water distribution plate 24, lower mold base 25, and water distribution sleeve 27. During installation, align the notch 241 and the boss 271 to ensure that the water distribution plate 24 and the return water hole 251 on the lower mold base 25 correspond. Fit the outer frame 29, then align the lower mold assembly 2 with the upper mold assembly 1 and install it completely. Finally, place the material block in the cavity formed between the cap edge mold 21, cap surface mold 22, and upper mold assembly 1, and form the bottle cap in the cavity through compression molding. Remove the bottle cap from the cavity through the demolding sleeve 46.

[0053] 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 capping mold, characterized in that, include: The upper mold assembly includes an inner mold core and an outer mold core, with the outer mold core sleeved on the inner mold core. A drainage hole is provided at the top of the outer mold core. A lower mold assembly is installed at the lower end of the inner mold core to assemble and form a cavity for bottle cap production; Cooling rod, the cooling rod being inserted into the inner mold core; A fixing component is fixed to the cooling rod and the upper mold assembly to secure the cooling rod and the upper mold assembly.

2. The capping mold according to claim 1, characterized in that, The lower mold assembly includes a lower mold cylinder, a lower mold base, a lower mold water distribution plate, an adjusting shim, a cover edge mold, and a cover surface mold. The cover surface mold is installed at the bottom of the cover edge mold, and the top of the cover surface mold is embedded in the upper mold assembly. The adjusting shim, the lower mold water distribution plate, the lower mold base, and the lower mold cylinder are sequentially installed below the cover surface mold.

3. The capping mold according to claim 2, characterized in that, The lower mold assembly also includes a water distribution sleeve, which is mounted on the adjusting shim.

4. The capping mold according to claim 3, characterized in that, The lower mold base is provided with a plurality of water return holes, which are connected to the water distribution plate of the lower mold. The adjusting shim, the lower mold water distribution plate, and the lower mold base are provided with notches, and the water distribution sleeve is provided with a boss, which is connected to the notch.

5. The capping mold according to claim 4, characterized in that, The cooling rod includes a forming section and a mating section, the forming section and the mating section are detachably connected, and the forming section extends into the lower mold assembly.

6. The capping mold according to claim 3, characterized in that, The inner mold core also includes an air groove, which is disposed between the inner mold core and the cooling rod.

7. The capping mold according to claim 1, characterized in that, The fixing component includes an inner liner fixing seat and a mold core fixing seat, wherein the inner liner fixing seat is sleeved on the mold core fixing seat.

8. The capping mold according to claim 7, characterized in that, The inner liner fixing seat has a fixing groove, and the mold core fixing seat has a fixing block. The fixing block is embedded in the fixing groove to restrict the rotation of the inner liner fixing seat.

9. The capping mold according to claim 8, characterized in that, The fixing component also includes a sealing ring, and the inner bushing fixing seat is also provided with a sealing groove, and the sealing ring is installed in the sealing groove.

10. The capping mold according to claim 9, characterized in that, The mold core fixing seat is also equipped with an oil seal.

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