Cover pressing die

Abstract

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

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

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

[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 present application aims to provide a capping mold, aiming to solve the heat dissipation problem of the capping mold in the prior art, thereby ensuring the quality of the bottle caps and extending the service life of the capping mold.

[0006] The technical solution adopted by the present 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, the outer mold core is sleeved on the inner mold core, and a water flow hole is provided on the top of the outer mold core

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

[0009] A cooling rod, the cooling rod penetrates into the inner mold core;

[0010] A fixing assembly is fixed on the cooling rod and the upper mold assembly to fix 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 dividing plate, an adjusting gasket, 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, and the adjusting gasket, the lower mold water dividing plate, the lower mold base and the lower mold cylinder are installed in sequence below the cover surface mold.

[0012] Furthermore, the lower mold assembly also includes a water dividing sleeve, and the water dividing sleeve is installed on the adjusting gasket.

[0013] Furthermore, a plurality of water return holes are provided on the adjusting base, and the water return holes are connected with the lower mold water dividing sheet;

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

[0015] Furthermore, the cooling rod includes a forming section and a matching section, the forming section is detachably connected to the matching section, and the forming section extends into the lower mold assembly.

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

[0017] Furthermore, the fixing assembly comprises an inner sleeve fixing seat and a core fixing seat, and the inner sleeve fixing seat is sleeved on the core fixing seat.

[0018] Furthermore, the inner sleeve fixing seat is provided with a fixing groove, and the core fixing seat is provided with a fixing block, and the fixing block is embedded in the fixing groove to limit the rotation of the inner sleeve fixing seat.

[0019] Furthermore, the fixing assembly also includes a sealing ring, and the inner sleeve 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] The present application provides a capping mold, which is formed by assembling an upper mold component and a lower mold component together to form a cavity, placing a material block in the cavity, and producing a bottle cap by compression molding. In the upper mold component, a water flow hole is opened on the outer mold core and a water trough is opened along the water flow hole, and then cooling and heat dissipation are performed through the outer mold core, so that the cooling water flows in the water trough of the outer mold core, thereby making the cooling surface more uniform. In addition, the cooling surface is also increased when the cooling water flows in the outer mold core, and the cooling effect is effectively improved. At the same time, it also avoids the inner mold core from being easily deformed due to processing the inner mold core, thereby increasing the service life of the capping mold. In addition, the production efficiency of the bottle cap is also improved by further improving the cooling rod, and the molded bottle cap can be cooled in time. This process also ensures the quality of the bottle cap. The fixing component is to fix the cooling rod and the upper mold component to ensure the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2Schematic diagram of the inner mold core and the outer mold core in the embodiment of the present application;

[0025] Figure 3 A schematic diagram of the inner mold core and the outer mold core at another angle in the embodiment of the present application;

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

[0027] Figure 5 for Figure 4 Schematic diagram of the cross section along the DD direction;

[0028] Figure 6 for Figure 5 A partial enlarged schematic diagram of C in the middle;

[0029] Figure 7 This is an exploded schematic diagram of the lower mold assembly in the embodiment of the present application;

[0030] Figure 8 A schematic diagram of a cooling rod in an embodiment of the present application;

[0031] Fig. 9 for Figure 4 Schematic diagram of the cross section along the AA direction;

[0032] Fig.10 It is a schematic diagram of a fixing component in an embodiment of the present application;

[0033] Fig.11 for Fig.10 Schematic diagram of the cross section along the BB direction;

[0034] Fig.12 It is a schematic diagram of the cooperation between the inner sleeve fixing seat and the core fixing seat in the embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1. Upper mold assembly; 11. Inner mold core; 111. Air groove; 12. Outer mold core; 121. Water flow hole; 2. Lower mold assembly; 21. Cover edge mold; 22. Cover surface mold; 23. Adjustment gasket; 24. Lower mold water distributor; 241. Notch; 25. Lower mold base; 251. Return water hole; 252. Fixing screw; 26. Lower mold cylinder; 27. Water distributor sleeve; 271. Boss; 28. Lower mold locking ring; 29. ​​Outer frame; 3. Cooling rod; 31. Molding section; 32. Matching section; 4. Fixing assembly; 41. Inner liner fixing seat; 411. Indicator ring; 412. Fixing groove; 413. Oil seal; 42. Core fixing seat; 421. Fixing block; 43. Sealing ring; 44. Spring ring; 441. Spring gasket; 45. Molding sleeve; 46. Demolding sleeve. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] The present invention provides a capping die, such as Figures 1 to 12 As shown, the capping mold is used to produce bottle caps by compression molding the material block. 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 sleeved on the inner mold core 11. At the same time, the lower end of the inner mold core 11 is provided with 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 together to form a cavity for bottle cap production. In order to avoid overheating of the capping mold during the compression molding process, it is necessary to dissipate the heat of the capping mold by setting a water channel in the upper mold assembly 1. The traditional method is to draw a long water trough on the inner mold core 11 so that the cooling water flows in the water trough to achieve cooling of the inner mold core 11 and the outer mold core 12, and then cool the capping mold, but this will make the inner mold core 11 easy to deform, thereby shortening the service life of the capping mold. Therefore, in the present application, in order to avoid shortening the service life of the capping mold due to deformation of the inner mold core 11, a water flow hole 121 is provided on the top of the outer mold core 12. Figure 2 As shown, a long water groove is opened into the outer mold core 12 through the water flow hole 121, so that the cooling water flows in the water groove of the outer mold core 12, so that the cooling surface is more uniform. In addition, the cooling water also increases the cooling surface when flowing in the outer mold core 12, and the cooling effect is effectively improved. At the same time, it also avoids the inner mold core 11 from being easily deformed due to processing, thereby increasing the service life of the gland mold. Specifically, in this embodiment, four water flow holes 121 are opened on both sides of the top of the outer mold core 12, and a long water groove is opened into the outer mold core 12 through the water flow holes 121. In this way, the cooling water flows in the water groove of the outer mold core 12 to cool 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 oil cylinder 26, a lower mold base 25, a lower mold water-dividing sheet 24, an adjusting gasket 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 the cap surface mold 22 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, and the bottle cap is produced by compression molding after the material block is placed in the cavity. Under the cap surface mold 22, the adjusting gasket 23, the lower mold water-dividing sheet 24, the lower mold base 25 and the lower mold oil cylinder 26 are installed in sequence from top to bottom. The lower mold oil cylinder 26 is used to squeeze the cap surface mold 22 so that the material block in the cavity becomes a bottle cap, and the lower mold base 25 supports the cap surface mold 22. At the same time, water flows in the lower mold base 25, so as to cool the structure in the lower mold assembly 2 and maintain the normal operation of the structure in the lower mold assembly 2. In order to improve the cooling efficiency of each structure in the lower mold assembly 2, a lower mold water dividing plate 24 is provided on the lower mold base 25. At this time, the water in the lower mold base 25 flows into the lower mold return water plate and then flows into the lower mold base 25 again, thereby increasing the flow time of water in the lower mold assembly 2 and improving the cooling efficiency. At the same time, in order to further improve the cooling efficiency, return water holes 251 are provided on the lower mold base 25 and the lower mold water dividing plate 24. The lower mold base 25 and the lower mold water dividing plate 24 are connected through the return water holes 251, so that water can flow more smoothly. In this embodiment, the lower mold base 25 and the lower mold water dividing plate 24 are each provided with eight return water holes 251, and the return water holes 251 on the lower mold base 25 correspond to the return water holes 251 on the lower mold water dividing plate 24 one by one, so that water can flow between the lower mold base 25 and the lower mold water dividing plate 24. The adjusting gasket 23 is arranged between the lower mold water dividing plate 24 and the cover mold 22 , and the adjusting gasket 23 is used to prevent the lower mold oil cylinder 26 from squeezing excessively, thereby preventing the cover mold 22 and the cover edge mold 21 from being damaged. At the same time, 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 due to the reaction force during use, a fixing screw 252 is also provided on the lower mold base 25. When assembling the lower mold assembly 2, the fixing screw 252 is screwed into the lower mold cylinder 26 to limit the movement of the lower mold cylinder 26 relative to the lower mold base 25 and prevent the lower mold cylinder 26 from falling off from the lower mold assembly 2. Furthermore, a lower mold locking ring 28 is also sleeved 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 threadedly connected to the inner wall of the outer frame 29. At the same time, filling the lower mold locking ring 28 into the gap between the lower mold cylinder 26 and the outer frame 29 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 to form a bottle cap as soon as possible.

[0042] At the same time, in order to prevent the cooling water flowing in the lower mold base 25 and the lower mold water dividing sheet 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 dividing jacket 27, which is installed on the adjusting gasket 23, such as Figure 6 As shown, the water-dividing jacket 27 is clamped on the outer circles of the cap edge mold 21 and the cap surface mold 22 to prevent the cap edge mold 21 and the cap surface mold 22 from contacting the cooling water, thereby ensuring that the production of the bottle cap will not be affected by a sudden drop in temperature during production.

[0043] When assembling the various structures of the lower mold assembly 2, in order to avoid the misalignment of the water channel in the lower mold assembly 2, the lower mold water dividing plate 24 and the return water hole 251 of the lower mold base 25 are made to correspond to each other. At the same time, in order to facilitate subsequent processing and manufacturing, at this time, each mechanism of the lower mold assembly 2 adopts a fool-proof design, such as Figure 6 and Figure 7 As shown, the adjusting gasket 23, the lower die water divider 24 and the lower die base 25 are provided with a notch 241, and the water divider sleeve 27 is provided with a boss 271, which is matched and connected with the notch 241. That is, when assembling these structures, the notch 241 on the lower die water divider 24 is first aligned with the notch 241 of the lower die base 25, and after the alignment is completed, the lower die water divider 24 is installed in the lower die base 25, and at the same time, the water return holes 251 on the lower die water divider 24 and the lower die base 25 are also aligned one by one, and then the notch 241 of the adjusting gasket 23 is aligned with the notch 241 on the lower die water divider 24, and after the alignment is completed, the adjusting gasket 23 is installed on the lower die water divider 24, and finally the boss 271 on the water divider sleeve 27 is aligned with the notch 241, and the water divider sleeve 27 is installed on the adjusting gasket 23, and the assembly of each structure of the lower die assembly 2 is completed.

[0044] like Figure 1 , Figure 8 and Fig. 9As shown, when the material block in the cavity is compression molded 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 the shape of the bottle cap. Therefore, a cooling rod 3 is also included in the capping mold. The cooling rod 3 is used to cool the cavity to form a stable bottle cap in time. Specifically, the cooling rod 3 includes a molding section 31 and a matching section 32. The molding section 31 and the matching section 32 are detachably connected. The molding section 31 extends into the lower mold assembly 2 and extends 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 matching section 32 is detachably connected to the molding section 31, and the other end is connected to a water supply structure, so that the water in the water supply structure is transmitted to the molding section 31, and the cavity is cooled in time to form a bottle cap. The split design of the cooling rod 3 makes the cooling rod 3 easier to process, thereby improving the processing manufacturability. At the same time, the split design of the cooling rod 3 can be processed separately. Different materials are used according to different functions. The molding section 31 uses a material with better thermal conductivity to improve the cooling effect of the molding section 31, while the matching section 32 uses a material with good wear resistance. In addition, the split design can also be used to redesign the molding section 31, so as to improve the shape of the water channel here, reduce the area of ​​water accumulation, and be more conducive to the molding and cooling of the bottle cap, thereby improving production efficiency.

[0045] When the bottle cap is formed and completely cooled, the capping mold needs to be demoulded to remove the bottle cap. When the capping mold is demoulded, in addition to the mold demoulding sleeve 46 moving under the action of the machine cam to demould, internal blowing is also required to assist in demoulding. Therefore, in order to enable the capping mold to be demoulded and the formed bottle cap to be taken out by 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 opened air groove 111. The opened air groove 111 enhances the blowing effect, thereby improving the demoulding efficiency of the capping mold and facilitating the timely removal of the formed bottle cap.

[0046] When the outer mold core 12 in the upper mold assembly 1 is sleeved outside 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, it is necessary to use a fixing assembly 4 to fix these structures. The fixing assembly 4 includes an inner sleeve fixing seat 41 and a core fixing seat 42. The inner sleeve fixing seat 41 is sleeved on the core fixing seat 42. For details, please refer to Figures 10 to 12When the cooling rod 3 passes through the inner mold core 11, a part of the cooling rod 3 is located outside the inner mold core 11. Similarly, when the outer mold core 12 is sleeved on the outer circle of the inner mold core 11, a part of the inner mold core 11 is not wrapped 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, the relative positions of the inner mold core 11, the outer mold core 12 and the cooling rod 3 are fixed. At this time, the core fixing seat 42 is sleeved on the cooling rod 3 located outside the inner mold core 11, and the lower end of the core fixing seat 42 extends to the inner mold core 11 and the outer mold core 12, so that the core fixing seat 42 is simultaneously sleeved on the inner mold core 11, the outer mold core 12 and the cooling rod 3, fixing the inner mold core 11, the outer mold core 12 and the cooling rod 3 to prevent relative rotation between these structures. In addition, in order to further strengthen the fixing and protection function of the core fixing seat 42, an inner sleeve fixing seat 41 is sleeved outside the core fixing seat 42, and the fixing and protection function of the core fixing seat 42 is further strengthened by the inner sleeve fixing seat 41. At the same time, an indicator ring 411 is also provided at the upper end of the inner sleeve fixing seat 41, and the outer diameter of the indicator ring 411 is greater than the outer diameter of other positions of the inner sleeve fixing seat 41, so as to indicate the sleeve position of the inner sleeve fixing seat 41. In order to further strengthen the fixing function, a spring ring 44 is sleeved on the inner sleeve fixing seat 41. In addition, the sleeved spring ring 44 can also balance the pressure of the lower mold oil cylinder 26 when the bottle cap is formed, so as to avoid the excessive pressure of the lower mold oil cylinder 26 causing damage to the bottle cap. At the same time, the spring ring 44 can also assist in ejecting the bottle cap a certain distance when opening the mold, so as to take out 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 under the spring ring 44. The spring washer 441 is arranged around the outer ring of the inner sleeve fixing seat 41 to fix the spring ring 44 and prevent the spring ring 44 from falling during use.

[0047] Furthermore, in order to limit the rotation of the inner sleeve fixing seat 41 and fix the relative positions of the mold core fixing seat 42 and the inner sleeve fixing seat 41, the inner sleeve fixing seat 41 is provided with a fixing groove 412, such as Fig.12As shown, the fixing groove 412 is provided below the indicator ring 411. In this embodiment, the fixing groove 412 is elliptical. In other cases, the fixing groove 412 may also be in other shapes. Correspondingly, the core fixing seat 42 is provided with a fixing block 421, which is embedded in the fixing groove 412, so that the inner sleeve fixing seat 41 is limited to rotate by the cooperation between the fixing block 421 and the fixing groove 412. The fixing block 421 is detachably mounted on the core fixing seat 42, so that the fixing block 421 can be removed in time and the core fixing seat 42 can be maintained. In this embodiment, the fixing block 421 includes a screw, and the core fixing seat 42 is provided with a screw hole at the installation position of the fixing block 421. Therefore, when the fixing block 421 needs to be installed on the core fixing seat 42, the screw is screwed into the screw hole to complete the installation of the fixing block 421. When the fixing block 421 needs to be removed, the fixing block 421 can be removed from the core fixing seat 42 by unscrewing the screw.

[0048] Since the gas used for blowing the bottle cap in the capping mold enters through the core fixing seat 42 and then enters the gas 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 core fixing seat 42 and the inner mold core 11. Therefore, in the present application, the fixing assembly 4 also includes a sealing ring 43, which is provided to prevent the gas from entering the gap between the core fixing seat 42 and the inner mold core 11, and in order to install the sealing ring 43, the core fixing seat 42 is also provided with a sealing groove, and the sealing ring 43 is installed in the sealing groove. Because the diameter of the inner mold core 11 is relatively small and the wall thickness of the inner mold core 11 is also relatively small, if a sealing groove is opened on the inner mold core 11, the strength of the inner mold core 11 will be reduced, causing the inner mold core 11 to be easily damaged. Therefore, in the present embodiment, the sealing groove is arranged on the core fixing seat 42. Since the diameter of the core fixing seat 42 is relatively large and the wall thickness of the core fixing seat 42 is relatively thick, the opening of the sealing groove on the core fixing seat 42 has relatively little effect on the strength of the core fixing seat 42 and will not cause the core fixing seat 42 to be damaged during use.

[0049] At the same time, in order to reduce the loss of gas blown into the air groove 111 and to increase the blowing volume, an oil seal 413 is added to the core fixing seat 42. The oil seal 413 prevents the gas from losing from the gap between the core fixing seat 42 and the cooling rod 3, thereby increasing the blowing volume for the bottle cap, so as to facilitate the molding of the bottle cap and remove the bottle cap from the capping mold in time.

[0050] When the material block is formed into a bottle cap by compression molding in the cavity, in addition to molding the edge and the cover surface of the bottle cap by the cover edge mold 21 and the cover surface mold 22, it is also necessary to ensure that when the bottle cap installed on the bottle mouth is opened, the bottle cap is broken and the ring at the bottom of the bottle cap is stuck on the bottle to prevent it from falling off.

[0051] After the bottle cap is formed in the cavity, it is necessary to remove the bottle cap in time so that the capping mold can produce another bottle cap again. Therefore, in the present application, the fixing assembly 4 also includes a demoulding sleeve 46, through which the molded bottle cap is removed in time. Specifically, the demoulding sleeve 46 is sleeved on the outer ring of the inner sleeve fixing seat 41, and the inner part of the lower end of the demoulding sleeve 46 is also in contact with the molding sleeve 45. Fig.10 As shown, at this time, the formed bottle cap is taken out in time through the lower end of the demoulding sleeve 46.

[0052] Therefore, when the bottle cap is formed by the capping mold in the present application, the upper mold assembly 1 is first assembled, and the outer mold core 12 is sleeved on the outer ring of the inner mold core 11. After the sleeve is completed, the cooling rod 3 is inserted into the inner mold core 11, and then the inner sleeve fixing seat 41 and the core fixing seat 42 are assembled. The fixing block 421 is embedded in the fixing groove 412 to limit the relative rotation of the inner sleeve fixing seat 41 relative to the core fixing seat 42, and the sealing ring 43 is placed in the sealing groove, and an oil seal 413 is added to the core fixing seat 42. Then, the combination of the core fixing seat 42 and the inner sleeve fixing seat 41 is sleeved on the combination of the cooling rod 3 and the upper mold assembly 1, and then the spring ring 44 and the spring gasket 441 are sleeved under the indicator ring 411. Finally, install the various structures in the lower mold assembly 2, install the cover edge mold 21, the cover edge mold 21, the adjusting gasket 23, the lower mold water dividing plate 24, the lower mold base 25 and the water dividing sleeve 27 in turn, align the notch 241 and the boss 271 during installation, so that the lower mold water dividing plate 24 and the return water hole 251 on the lower mold base 25 correspond, put on the outer frame 29, and then align the lower mold assembly 2 with the upper mold assembly 1 to completely install it, and finally place the material block in the cavity formed between the cover edge mold 21, the cover surface mold 22 and the upper mold assembly 1, form a bottle cap in the cavity by compression molding, and take out the bottle cap in the cavity through the demolding sleeve 46.

[0053] 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 capping mold, characterized in that: include: An upper mold assembly, the upper mold assembly comprising an inner mold core and an outer mold core, the outer mold core is sleeved on the inner mold core, and a water flow hole is provided on the top of the outer mold core; A lower mold assembly, the lower mold assembly is mounted on the lower end of the inner mold core to assemble and form a cavity for bottle cap production; A cooling rod, the cooling rod penetrates into the inner mold core; A fixing assembly is fixed on the cooling rod and the upper mold assembly to fix 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 dividing plate, an adjusting gasket, 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 gasket, the lower mold water dividing plate, the lower mold base and the lower mold cylinder are installed in sequence below the cover surface mold.

3. The capping mold according to claim 2, characterized in that: The lower mold assembly also includes a water dividing sleeve, and the water dividing sleeve is installed on the adjusting gasket.

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

5. The capping mold according to claim 4, characterized in that: The cooling rod comprises a forming section and a matching section, the forming section is detachably connected to the matching section, 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 further includes an air groove, and the air groove is arranged between the inner mold core and the cooling rod.

7. The capping mold according to claim 1, characterized in that: The fixing assembly comprises an inner sleeve fixing seat and a core fixing seat, and the inner sleeve fixing seat is sleeved on the core fixing seat.

8. The capping mold according to claim 7, characterized in that: The inner sleeve fixing seat is provided with a fixing groove, and the core fixing seat is provided with a fixing block, and the fixing block is embedded in the fixing groove to limit the rotation of the inner sleeve fixing seat.

9. The capping mold according to claim 8, characterized in that: The fixing assembly also includes a sealing ring, and the inner sleeve 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 provided with an oil seal.

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