A wine bottle cap production device

Abstract

The present application belongs to the technical field of bottle cap production, and particularly relates to a wine bottle cap production device, which comprises a male die seat and a female die seat, a bottle cap female die is slidably arranged in the female die seat, a pouring hole and a mounting hole which are in communication with each other are sequentially arranged in the bottle cap female die, a crimping sleeve is tightly arranged in the mounting hole, one end of the crimping sleeve is fixed on the inner wall of the mounting hole, a spring one is arranged between the bottle cap female die and the mounting hole, a variable-diameter through hole with small ends and a large middle is arranged in the crimping sleeve, a drainage hole one which is in communication with the variable-diameter through hole is arranged at the bottom end of the crimping sleeve, and a plugging mechanism is arranged at the end of the bottle cap female die and extends into the variable-diameter through hole to plug the small-diameter hole of the variable-diameter through hole. After the crimping sleeve extends out of the mounting hole and is crimped with the bottle cap male die, the pouring hole is heated by ventilation and heating, high-temperature plastic liquid is introduced, and the solidified plastic in the runner is melted and discharged, so that the quality of the pouring product is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of bottle cap production, and particularly relates to a wine bottle cap production device. BACKGROUND

[0002] A bottle cap is used for sealing a bottle, and has different shapes and operation methods according to different functions. The injection molding method has the advantages of fast production speed and high efficiency, and can realize automatic production. The injection molding is suitable for the molding processing field of mass production and complex-shaped products. The plastic molding process mainly includes the following steps: heating and melting plastic particles, pouring the melted plastic particles into a corresponding mold for cooling and molding, and finally demolding to obtain a plastic bottle cap.

[0003] The prior art has the following disadvantages:

[0004] In the injection molding process, in addition to the pouring cavity, there are some flow channels and nozzles in the mold, which are used to deliver the melted plastic to the pouring cavity. These flow channels and nozzles are usually connected to the injection machine and will have some plastic cooling and solidification residues.

[0005] When the injection molding is completed, the plastic in the flow channels and nozzles may be solidified to a certain extent. Before the next injection molding, the solidified plastic needs to be removed to ensure the normal progress of the injection molding process. The conventional flow channel cleaning needs to disassemble the injection machine and clean it thoroughly, or separate the mold and clean it by blowing, but the cleaning effect is not outstanding enough, and the solidified plastic in the flow channel cannot be completely removed, so that when the high-temperature plastic solution enters the flow channel during the next pouring, the solidified plastic in the flow channel is easily heated and melted, but the melting is not complete and the mixing is not complete, so that the solidified plastic is mixed into the pouring cavity, thereby causing product quality problems. SUMMARY

[0006] In view of the technical problems in the background art, the application provides a wine bottle cap production device.

[0007] To achieve the above-mentioned purposes, the technical scheme provided by the application is as follows:

[0008] The utility model provides a wine bottle cap production device, including male die seat and female die seat, the male die seat is detachably provided with bottle cap male die tool, the bottle cap male die tool is provided with injection molding hole, the female die seat is provided with mounting hole, the bottle cap female die tool is slidably arranged in the mounting hole, the bottle cap female die tool is sequentially provided with pouring hole, sealing hole, limit hole no.

[0009] Optionally, the mounting hole is a multi-section stepped hole with different diameters, sequentially being the sealing hole, the limit hole no.

[0010] Optionally, the first limit cylinder is arranged close to the sealing hole, the second limit cylinder is arranged close to the limit hole no.

[0011] Optionally, the inside of the pressure joint sleeve is sequentially provided with sliding hole no.

[0012] Optionally, the sealing mechanism comprises a gland no.

[0013] Optionally, the sealing mechanism includes a convex ring and a second and a third slide rod fixed on the convex ring, the length of the third slide rod being greater than the length of the second slide rod; the end of the bottle cap concave mold is provided with an installation groove 2, and a guide hole is provided around the circumference of the bottle cap concave mold, and a pressure cap 2 is provided in the installation groove 2; the second slide rod is provided close to the sealing ring and the first sliding hole, forming a second plastic discharge cavity between the second sliding hole and the second slide rod; the third slide rod is provided in the guide hole and extends to the outer end of the bottle cap concave mold; a fixing rod is provided on the concave mold base, and a second drainage hole is provided in the fixing rod, the fixing rod passing through the convex ring, the second pressure cap and the pressing sleeve and being threadedly connected, and the first drainage hole and the second drainage hole are connected; a spring is sleeved on the fixing rod between the convex ring and the inner wall of the concave mold base.

[0014] Optionally, the punch holder and the die holder are mounted on the housing, and the die holder is connected to and driven by the mold closing cylinder.

[0015] Optionally, the housing is equipped with a hot-melt mechanism and an injection mechanism. The hot-melt mechanism includes an outer cover, a furnace, and a heating pipe disposed between the outer cover and the furnace. The outer cover is equipped with an air inlet pipe and an air outlet pipe, and the furnace is equipped with a feed pipe and a discharge pipe. The injection mechanism includes an injection cylinder, an injection barrel, and a piston disposed on the inner wall of the injection barrel. The air outlet pipe and the discharge pipe are respectively connected to the injection barrel. The other end of the feed pipe is connected to a drainage hole. A main channel is provided inside the punch seat, and the main channel is respectively connected to the injection inlet hole. The lower end of the main channel is connected to the injection barrel through a pipe, and the upper end of the main channel is connected to a vacuum device.

[0016] Optionally, the syringe is provided with a connector, which includes an outer sleeve and an inner sleeve. The outer sleeve is threaded into the inner hole of the syringe. The inner sleeve is provided with a filter cartridge, which is slidably disposed close to the inner hole of the outer sleeve. A sealing ring is provided at the end of the inner sleeve.

[0017] The present invention has the following advantages and beneficial effects:

[0018] I. In this invention, a bottle cap punch and a bottle cap die are designed with a pressing sleeve tightly fitted inside the bottle cap die. When the punch and die are closed, a casting chamber is formed inside. The pressing sleeve extends from the sealing hole away from the sealing mechanism and presses against the punch, thereby connecting the injection inlet and the reducing through hole. This design allows the pressing sleeve to align with the punch before each casting, connecting it to other flow channels of the injection molding machine. In this case, the flow channels are heated by ventilation, heating, or introducing high-temperature molten plastic to melt the solidified plastic within the channels and allow it to flow out. This ensures that solidified plastic in each flow channel is discharged before each casting, guaranteeing the quality of the casting liquid and thus ensuring the quality of the cast product.

[0019] Secondly, in the present application, the crimping sleeve and the bottle cap punch die are butt jointed, so that the runner and the injection cavity are separated, the injection cavity is cooled by water cooling or other ways, and the injection cavity will not remain solidified plastic, so that when the solidified plastic in the runner is discharged, the injection cavity and the runner are separated, the cleanliness of the injection cavity is ensured, and the quality of subsequent pouring is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The front view of the wine bottle cap production device provided by the present application is provided.

[0021] Figure 2 The Figure 1 partial enlarged view at a in the present application is provided.

[0022] Figure 3 The specific structure diagram of the hot melting mechanism provided by the present application is provided.

[0023] Figure 4 The installation schematic diagram of the bottle cap punch die and the bottle cap recess die provided by the present application is provided.

[0024] Figure 5 The schematic diagram of the bottle cap punch die and the bottle cap recess die provided by the present application adopting the first sealing mechanism is provided. Figure 1 ;

[0025] Figure 6 The schematic diagram of the bottle cap punch die and the bottle cap recess die provided by the present application adopting the first sealing mechanism is provided. Figure 2 ;

[0026] Figure 7 The schematic diagram of the bottle cap punch die and the bottle cap recess die provided by the present application adopting the second sealing mechanism is provided. Figure 1 ;

[0027] Figure 8 The schematic diagram of the bottle cap punch die and the bottle cap recess die provided by the present application adopting the second sealing mechanism is provided. Figure 2 ;

[0028] Figure 9 The schematic diagram of the bottle cap punch die and the bottle cap recess die provided by the present application adopting the second sealing mechanism is provided. Figure 3 ;

[0029] Figure 10 The sectional view of the bottle cap punch die provided by the present application is provided.

[0030] Figure 11 The sectional view of the bottle cap recess die provided by the present application is provided. Figure 1 ;

[0031] Figure 12 The sectional view of the crimping sleeve provided by the present application is provided.

[0032] Figure 13 A sectional view of the first sealing mechanism provided by the present application;

[0033] Figure 14 A sectional view of the fixing rod provided by the present application;

[0034] Figure 15 A sectional view of the bottle cap concave mold provided by the present application Figure 2 ;

[0035] Figure 16 A sectional view of the second sealing mechanism provided by the present application;

[0036] Figure 17 A sectional view of the second sealing mechanism provided by the present application;

[0037] Figure: 1 - box, 11 - support plate, 12 - material receiving port, 13 - support one, 14 - support two, 15 - support three, 16 - support four, 2 - mold closing cylinder, 21 - piston rod, 22 - concave mold seat, 23 - mounting hole, 24 - fixing rod, 241 - pressure ring, 242 - locking screw two, 243 - spring one, 244 - drainage hole two, 245 - threaded hole three, 3 - mounting rod, 31 - convex mold seat, 32 - main flow channel, 33 - quick change joint one, 34 - quick change joint two, 35 - threaded hole one, 36 - limiting groove, 4 - injection cylinder, 41 - piston, 42 - injection barrel, 43 - filter cartridge, 44 - outer sleeve, 45 - inner sleeve, 451 - center hole, 452 - push handle, 46 - sealing ring one, 5 - hot melt mechanism, 51 - furnace, 511 - feeding pipe, 512 - filter, 52 - heating pipe, 53 - outer cover, 531 - air inlet pipe, 532 - air outlet pipe, 54 - valve one, 541 - discharge pipe, 542 - pump body, 55 - valve two, 56 - main pipe, 6 - bottle cap convex mold, 6a - pouring chamber, 61 - injection inlet hole, 62 - helical groove, 63 - threaded segment, 7 - bottle cap concave mold, 71 - pouring hole, 72 - sealing hole, 73 - limiting hole one, 74 - limiting hole two, 75 - mounting groove, 76 - threaded hole two, 77 - guide hole, 78 - pressure cover two, 781 - hole one, 782 - hole two, 8 - pressure sleeve, 81 - third limiting cylinder body, 811 - threaded joint, 82 - second limiting cylinder body, 83 - first limiting cylinder body, 84 - sliding hole two, 841 - sealing ring two, 85 - sliding hole one, 86 - drainage hole one, 87 - spring two, 88 - spring three, 9 - sealing mechanism one, 9a - plastic discharging cavity one, 91 - pressure cover one, 92 - pressure joint, 93 - sliding rod one, 94 - hole three, 95 - hole four, 96 - locking screw one, 10 - sealing mechanism two, 10a - plastic discharging cavity two, 101 - convex ring, 102 - sliding rod two, 103 - hole five, 104 - sliding rod three. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0039] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0040] Example 1

[0041] like Figure 1 As shown, a bottle cap production device includes a housing 1, a hot-melt mechanism 5, an injection mechanism, a punch seat 31, a die seat 22, a bottle cap punch 6, a bottle cap die 7, and other components.

[0042] like Figure 1 As shown, a support plate 11 is provided at the upper end of the box body 1. A receiving port 12 is opened in the center of the support plate 11 for collecting the demolded bottle caps into the box body 1. Supports 1-13, 14-15, 16-16 are fixed to the upper end of the support plate 11 of the box body 1 in sequence. Supports 1-13 and 14-15 have through holes for passing through and fixing the mounting rod 3. One end of the mounting rod 3 is fixed to the punch seat 31. A mold closing cylinder 2 is fixed to one side of the support 4-16. Supports 3-15 and 16-16 have through holes for passing through the piston rod 21 of the mold closing cylinder 2 in sequence. The end of the piston rod 21 is fixed to the die seat 22. The punch seat 31 is located above the receiving port 12. The mold closing cylinder 2 can be extended and retracted to control the die seat 22 and the punch seat 31 to perform mold closing / demolding.

[0043] like Figure 1 , Figure 3As shown, the upper end of the support 13 is fixed with a hot melt mechanism 5 for heating and melting the granular plastic. Specifically, the hot melt mechanism 5 includes a furnace 51, a heating pipe 52 and an outer cover 53, etc. The bottom end of the furnace 51 is provided with a valve 54 for controlling the discharge. The furnace 51 is wrapped with the outer cover 53, and the heating pipe 52 is arranged in the cavity between the outer cover 53 and the furnace 51. The bottom end of the outer cover 53 is provided with an air inlet pipe 531 for introducing normal temperature air, and the upper end of the outer cover 53 is provided with an air outlet pipe 532 for discharging heated hot air. The upper end of the furnace 51 is provided with a feeding pipe 511, and the feeding pipe 511 is provided with a filter 512 for recycling the recycled plastic (in a molten or semi-molten state) into the furnace 51 while filtering out impurities. The bottom end of the valve 54 is connected with a discharge pipe 541, and the discharge pipe 541 is provided with a pump body 542 for pumping the molten plastic into the injection cylinder 42.

[0044] As shown, Figures 1-3 The injection mechanism includes an injection cylinder 4, an injection cylinder 42 and a piston 41 arranged on the inner wall of the injection cylinder 42, and the injection cylinder 42 is installed on the upper end of the support 14. The discharge pipe 541 and the air outlet pipe 532 are connected with a valve 55, and the outlet of the valve 55 is connected with a main pipe 56, which is connected with the injection cylinder 42 for introducing hot air or molten plastic into the inner cavity of the injection cylinder 42.

[0045] As shown, Figure 2 Further, the injection cylinder 42 is provided with a connector, which includes an outer sleeve 44 and an inner sleeve 45. The small end of the outer sleeve 44 is provided with a thread, which is connected in the inner threaded hole of the injection cylinder 42 through the thread. The outer end of the outer sleeve 44 is tightly arranged on the outer wall of the support 14. The inner wall of the inner sleeve 45 is provided with a filter cartridge 43, which is slidingly arranged in the inner hole of the outer sleeve 44. The inner sleeve 45 is provided with a central hole 451 in the inside, and the outer end is provided with a push handle 452. The end of the inner sleeve 45 is provided with a sealing ring 46, and the outer diameter of the sealing ring 46 is slightly larger than the inner hole diameter of the outer sleeve 44. Figure 2 As shown, one end of the inner sleeve 45 extends into the injection cylinder 42, and the sealing ring 46 is away from the outer sleeve 44. In this case, hot melt plastic can be introduced into the injection cylinder 42 through the central hole 451, and the cavity between the outer sleeve 44 and the inner sleeve 45 and the filter cartridge 43 can be exhausted, that is, the injection cylinder 42 can be filled with hot melt plastic without obstruction, and the air can be exhausted. When the hot melt material in the injection cylinder 42 is replenished, the inner sleeve 45 can be slid outwardly, so that the sealing ring 46 is filled between the inner sleeve 45 and the outer sleeve 44, thereby realizing sealing. When the inner sleeve 45 is moved out of the inner cavity of the injection cylinder 42, the injection cylinder 4 can be controlled to extend out, and the piston 41 can be lowered to push and inject the molten plastic on the inner wall of the injection cylinder 42 into the pouring chamber 6a of the mold to realize pouring.

[0046] The bottle cap mold comprises a bottle cap male mold 6, a bottle cap female mold 7, a pressure joint sleeve 8, a blocking mechanism one 9, a fixed rod 24 and the like.

[0047] As shown in Figure 10 , the bottle cap male mold 6 is provided with a spiral groove 62 for forming the internal thread of the bottle cap after pouring; one end of the bottle cap male mold 6 is a threaded section 63, and the bottle cap male mold 6 is provided with an injection molding hole 61.

[0048] As shown in Figure 11 , the bottle cap female mold 7 is provided with multi-section stepped holes with different diameters, and the bottle cap female mold 7 is sequentially provided with pouring holes 71, sealing holes 72, limiting holes one 73, limiting holes two 74 and mounting grooves 75 which are in communication with each other, the mounting grooves 75 are uniformly provided with a plurality of threaded holes two 76 in the circumference, and the inner diameters of the sealing holes 72, the limiting holes one 73, the limiting holes two 74 and the mounting grooves 75 gradually increase.

[0049] As shown in Figure 12 , the pressure joint sleeve 8 is a multi-section stepped cylinder with different diameters, sequentially comprising a first limiting cylinder 83, a second limiting cylinder 82 and a third limiting cylinder 81; the first limiting cylinder 83 is connected with the sealing hole 72 in a matched manner; the second limiting cylinder 82 is connected with the limiting hole one 73 in a matched manner; and the third limiting cylinder 81 is connected with the limiting hole two 74 in a matched manner. The pressure joint sleeve 8 is provided with a variable-diameter through hole with small ends and a large middle part, specifically: the inside of the pressure joint sleeve 8 is sequentially provided with a sliding hole one 85 and a sliding hole two 84, the diameter of the sliding hole one 85 is larger than that of the sliding hole two 84, the end of the sliding hole two 84 is provided with a sealing ring two 841, and the inner diameter of the sealing ring two 841 is the same as that of the sliding hole one 85. The end face of the third limiting cylinder 81 is provided with a plurality of threaded joints 811, the pressure joint sleeve 8 is provided with a plurality of drainage holes one 86, one end of the drainage holes one 86 penetrates to the end of the threaded joint 811, and the other end is in communication with the sliding hole two 84. The outer wall of the first limiting cylinder 83 is provided with a spring two 87, and the outer wall of the second limiting cylinder 82 is provided with a spring three 88.

[0050] As shown in Figure 13 , the blocking mechanism one 9 comprises a gland one 91 and a sliding rod one 93 arranged at the center of the gland one 91, and the sliding rod one 93 is connected with the sliding hole one 85 in a matched manner; the outer side of the gland is provided with an annular pressure joint 92, the pressure joint 92 is provided with a plurality of holes three 94 and holes four 95 in the circumference, and the holes four 95 are provided with locking screws one 96.

[0051] As shown in Figure 4 , 14As shown, the recess die seat 22 is provided with a plurality of mounting holes 23 for mounting the bottle cap recess die 7 and the like. The fixed rod 24 is provided at one end with a compression ring 241 which is arranged in close contact with the outer wall of the recess die seat 22. The compression ring 241 is provided with a locking screw two 242 which is threadedly connected to the recess die seat 22. The inner end of the fixed rod 24 penetrates into the mounting hole 23. The fixed rod 24 is provided at one end with a threaded hole three 245 which is threadedly connected with the threaded joint 811. The fixed rod 24 is internally provided with a through drainage hole two 244. The fixed rod 24 is externally provided with a spring one 243.

[0052] As shown in Figure 4 , Figure 5 , the installation of the bottle cap male die 6 and the bottle cap female die 7 is as follows:

[0053] Step one: as shown in Figure 4 , the male die seat 31 is internally provided with a vertical main flow channel 32. The male die seat 31 is provided at one end with a plurality of threaded holes one 35 which are in communication with the main flow channel 32. The bottle cap male die 6 is threadedly fixed in the threaded hole one 35 through the threaded section 63. After the bottle cap male die 6 is fixed in the threaded hole one 35, the main flow channel 32 is in communication with the injection molding hole 61. The lower end of the main flow channel 32 is provided with a quick-change joint one 33. The bottom end of the injection cylinder 42 is connected to the quick-change joint one 33 through a material pipe. The upper end of the main flow channel 32 is provided with a quick-change joint two 34 which is connected to the vacuumizing device.

[0054] Step two: as shown in Figure 5 , the recess die seat 22 is provided with a plurality of bottle cap female dies 7 which are arranged one-to-one with the bottle cap male dies 6. Specifically, the compression sleeve 8 is arranged in the inner hole of the bottle cap female die 7 so that the first limiting cylinder 83 is in sliding sealing contact with the sealing hole 72; the second limiting cylinder 82 is in sliding arrangement with the limiting hole one 73; and the third limiting cylinder 81 is in sliding arrangement with the limiting hole two 74. The cavity between the outer wall of the first limiting cylinder 83 and the limiting hole one 73 is provided with a spring two 87. The cavity between the outer wall of the second limiting cylinder 82 and the limiting hole two 74 is provided with a spring three 88.

[0055] Step three: as shown in Figure 5As shown, after the installation of the sealing mechanism 9, the slide rod 93 is passed through the sealing ring 2 841, the slide hole 2 84, the slide hole 1 85, and the crimping sleeve 8 is arranged in the installation groove 75. The slide hole 2 84 and the slide rod 1 93 form a plastic discharge cavity 9a. Then, the locking screw 1 96 is screwed into the threaded hole 1 35 of the bottle cap concave mold 7, so as to fix the sealing mechanism 9 on the bottle cap concave mold 7. After fixing, the end face of the gland 1 91 and the third limiting cylinder 81 are arranged in close contact with each other, and the end of the slide rod 1 93 seamlessly seals the sealing hole 72, that is, the slide rod 1 93, one end of the crimping sleeve 8 and the inner end face of the pouring hole 71 are arranged in flush.

[0056] Step four: as shown in Figure 5 After the installation of the sealing mechanism 9, the bottle cap concave mold 7 is arranged in the installation hole 23, and then the fixing rod 24 is installed. The fixing rod 24 is passed into the installation hole 23 from the outside of the concave mold base 22. One end of the fixing rod 24 passes through the hole 3 94, and the threaded hole 3 245 of the fixing rod 24 is threadedly connected with the threaded joint 8 11 of the crimping sleeve 8, so as to connect and fix the fixing rod 24 and the crimping sleeve 8. One end of the spring 2 43 is arranged in close contact with the end face of the gland 1 91, and the other end is arranged in close contact with the inner wall of the installation hole 23.

[0057] As shown in Figure 5 During pouring, the mold closing cylinder 2 controls the closing of the bottle cap concave mold 7 and the bottle cap convex mold 6. The end of the bottle cap concave mold 7 is clamped into the limiting groove 36 of the convex mold base 31 to seal. After the bottle cap convex mold 6 and the bottle cap concave mold 7 are closed, a pouring cavity 6a is formed inside. When the spring 2 43, the spring 2 87 and the spring 3 88 are not stressed, the crimping sleeve 8, the slide rod 1 93 and the inner end of the pouring hole 71 are flush. In this case, the injection cylinder 4 can be controlled to extend to pour molten plastic into the pouring cavity 6a for pouring.

[0058] As shown in Figure 6 Before pouring, in order to empty the solidified plastic inside the pouring flow channel (main flow channel 32, etc.), the bottle cap concave mold 7 and the bottle cap convex mold 6 are first closed by the mold closing cylinder 2, and then the mold closing cylinder 2 is controlled to displace a certain amount, so that the concave mold base 22 moves relative to the bottle cap concave mold 7. The spring 2 43, the spring 2 87 and the spring 3 88 are compressed. The concave mold base 22 moves to drive the crimping sleeve 8 to move out of the sealing hole 72, until the crimping sleeve 8 and the bottle cap convex mold 6 are tightly butted, so as to separate the pouring cavity 6a and the main flow channel 32. After the crimping sleeve 8 moves and the bottle cap convex mold 6 butts, the slide rod 1 93 moves away from the slide hole 1 85, so that the injection hole 61 is sequentially communicated with the slide hole 1 85, the plastic discharge cavity 9a, the drainage hole 1 86 and the drainage hole 2 244. Hot air / melted plastic can be introduced into the main flow channel 32, so as to melt the solidified plastic in the flow channel 32 and discharge it to the outside of the mold, that is, the impurity removal of the pouring flow channel is completed, and the pouring quality is ensured.

[0059] Such design, when the solidified plastic in the pouring flow channel needs to be removed, only needs to press the sleeve 8 and the bottle cap convex mold 6 tightly to separate the pouring cavity 6a and the main flow channel 32. Because the pouring cavity 6a is demolded after cooling, it is not easy to adhere to the plastic and almost no cleaning is needed. Therefore, the pouring cavity 6a and the pouring flow channel are separated in an isolated manner, and when the pouring flow channel is cleaned, the pouring cavity 6a will not be affected. In order to ensure the cleanliness of the pouring liquid during the next pouring, the solidified plastic in the inner wall of the liquid pouring flow channel at other positions needs to be discharged. The scheme of the present application can efficiently remove the solidified plastic in the pouring flow channel, and at the same time, the mold does not need to be disassembled for cleaning, and the cleaning efficiency is high.

[0060] As shown in Figure 1 The inside of the support two 14 and the inside of the mounting rod 3 are provided with through holes for mounting the material pipe. One end of the material pipe is connected with the bottom end of the injection cylinder 42, and the other end is connected with the quick-change connector one 33. The other end of the material pipe 511 is connected with the drainage hole two 244. Such design makes the whole passage form a cycle. When the sleeve 8 moves and the bottle cap convex mold 6 is butted, hot air can be introduced into the injection cylinder 42. The hot air flows through the discharge pipe 541, the quick-change connector one 33, the main flow channel 32, the injection hole 61, the sliding hole one 85, the plastic discharging cavity one 9a, the drainage hole one 86, the drainage hole two 244, and the material pipe 511 in turn, so that the solidified plastic in the main flow channel 32 is melted by the hot air and discharged from the pouring flow channel, and finally recycled into the melting furnace 51 for reuse.

[0061] The pouring flow channel can be preheated and melted by introducing hot air, but because the hot air pressure is small, the solidified plastic is difficult to be directly discharged after being melted by the hot air. Therefore, hot plastic can be directly introduced into the injection cylinder, and the injection cylinder 4 is pushed to give pressure, so that the molten plastic and the melted plastic in the flow channel flow out together, and finally recycled into the melting furnace 51. When the melted plastic in the pouring flow channel is completely discharged, the vacuumizing device is started to vacuumize the pouring flow channel and the pouring cavity 6a. After vacuumizing is completed, the valve at the bottom of the injection cylinder 42 is opened, and the injection cylinder 4 is used to press and push in combination with the vacuum exhaust to pour the pouring cavity 6a, and then the pouring is completed and the mold is demolded.

[0062] Embodiment 2

[0063] In embodiment 2, the internal structure of the bottle cap concave mold 7 is further optimized and designed to solve the problem that the bottle cap is easily deformed by hard pulling during demolding, which leads to difficult demolding and product deformation.

[0064] Because the bottle cap has threads inside, the surface of the bottle cap convex mold 6 is provided with corresponding spiral grooves 62. When the bottle cap is poured, the threads inside the bottle cap are located in the spiral grooves 62 of the bottle cap convex mold 6. At this time, in order to demold the bottle cap, the bottle cap needs to be rotated to be separated from the spiral grooves 62 of the bottle cap convex mold 6. Because the bottle cap concave mold 7 directly pours out the shape of the bottle cap, the separation of the bottle cap and the bottle cap concave mold 7 is simpler and faster. Therefore, after the bottle cap is poured and cooled, the bottle cap concave mold 7 is separated from the bottle cap first, and then the bottle cap is separated from the bottle cap convex mold 6. When the bottle cap concave mold 7 is separated from the bottle cap, the movement of the bottle cap concave mold 7 will pull the bottle cap to move a certain distance. Because the bottle cap is just poured, the threads formed are relatively soft and can be easily deformed. Once the bottle cap is pulled to move, the threads inside the bottle cap and the spiral grooves 62 of the bottle cap convex mold 6 will be offset to a certain extent. After the threads of the bottle cap are deformed, it is difficult to demold and separate the bottle cap from the bottle cap convex mold 6.

[0065] As shown in Figure 15 Based on example 1, the bottle cap concave mold 7 is further optimized: the inner wall of the installation groove 75 is provided with internal threads; and the circumference of the bottle cap concave mold 7 is uniformly provided with a plurality of through guide holes 77.

[0066] As shown in Figure 16 In cooperation with the installation groove 75, a second pressing cap 78 is arranged, the outer wall of the second pressing cap 78 is provided with threads, and the second pressing cap 78 is threadedly connected in the installation groove 75; the second pressing cap 78 is provided with a first hole 781 and a second hole 782, the first hole 781 is used for the second sliding rod 102 to pass through, and the second hole 782 is used for the fixing rod 24 to pass through.

[0067] As shown in Figure 17 The second sealing mechanism 10 includes a convex ring 101, a second sliding rod 102 arranged fixedly on the convex ring 101, and a third sliding rod 104, the length of the third sliding rod 104 is greater than the length of the second sliding rod 102, and the circumference of the convex ring 101 is provided with a plurality of fifth holes 103.

[0068] The structure of the crimping sleeve 8 and the fixing rod 24 is consistent with example 1.

[0069] As shown in Figure 7 During installation, the first two steps are consistent with example 1, and the crimping sleeve 8 is first installed in the bottle cap concave mold 7.

[0070] Then, the second pressing cap 78 is installed, and the second pressing cap 78 is threadedly connected in the installation groove 75. The third limiting cylinder 81 of the crimping sleeve 8 is arranged in close contact with the second pressing cap 78.

[0071] Then, the sealing mechanism two 10 is installed, the slide rod two 102 is passed through the sealing ring two 841, the slide hole two 84, the slide hole one 85, the slide rod three 104 is passed through the guide hole 77, the slide rod three 104 is arranged in the guide hole 77 and extends to the outer end of the bottle cap concave die 7; the slide hole two 84 and the slide rod two 102 constitute the plastic discharge cavity two 10a, the convex ring 101 is arranged close to the end surface of the pressing cap two 78, and the end of the slide rod two 102 extends out of the sealing hole 72 by a certain distance into the pouring cavity 6a, and the sealing hole 72 is seamlessly sealed by the slide rod two 102.

[0072] Then, the fixing rod 24 is installed, the fixing rod 24 is passed into the mounting hole 23 from the outside of the concave die seat 22, one end of the fixing rod 24 is passed through the hole five 103 and the hole two 782, then the threaded hole three 245 of the fixing rod 24 and the threaded joint 811 of the crimping sleeve 8 are threadedly connected, so that the fixing rod 24 and the crimping sleeve 8 are connected and fixed. One end of the spring one 243 is arranged close to the end surface of the convex ring 101, and the other end is arranged close to the inner wall of the mounting hole 23.

[0073] As shown in Figure 7 , when pouring without clamping, the slide rod two 102 extends out of the end of the crimping sleeve 8; the slide rod three 104 extends to the outside of the bottle cap concave die 7.

[0074] As shown in Figure 8 , when pouring, the bottle cap concave die 7 and the bottle cap convex die 6 are clamped by the clamping cylinder 2, the slide rod three 104 is pressed, the convex ring 101 compresses the spring one 243, until the bottle cap concave die 7 is arranged close to the limiting groove 36, until the slide rod three 104 is completely accommodated in the guide hole 77, the slide rod two 102 is driven to shrink, so that the slide rod two 102, the crimping sleeve 8 and the bottom end surface of the pouring hole 71 are flush arranged; At this time, the spring two 87 and the spring three 88 are not stressed, and the pouring cavity 6a is formed inside.

[0075] As shown in Figure 9As shown, before pouring, in order to empty the solidified plastic inside the pouring runner, the bottle cap concave mold 7 and the bottle cap convex mold 6 are first controlled to be closed by the mold closing cylinder 2, and then the mold closing cylinder 2 is controlled to be displaced by a certain amount, so that the concave mold seat 22 moves relative to the bottle cap concave mold 7 and the sealing mechanism 10 as a whole, the spring 243, the spring 87 and the spring 88 are compressed, the concave mold seat 22 moves to drive the crimping sleeve 8 to move out of the sealing hole 72, and the crimping sleeve 8 and the bottle cap convex mold 6 are tightly connected, so as to separate the pouring cavity 6a and the main runner 32. After the crimping sleeve 8 moves and the bottle cap convex mold 6 is connected, the slide rod 102 moves away from the slide hole 85, so that the injection hole 61 is sequentially communicated with the slide hole 85, the plastic discharging cavity 10a, the drainage hole 86 and the drainage hole 244, and then hot air / melted plastic is introduced into the main runner 32, the solidified plastic in the main runner 32 is melted, and is discharged to the outside of the mold, that is, the impurity removal of the pouring runner is completed, and the pouring quality is ensured.

[0076] As shown, Figure 8 In this case, the pouring is performed by introducing the melted plastic, and the cooling system cools the pouring mold after the pouring is completed, so as to facilitate demolding. When demolding, first, the mold closing cylinder 2 is retracted to drive the concave mold seat 22 to move away from the convex mold seat 31, and simultaneously drive the bottle cap concave mold 7 to separate from the poured bottle cap. When the bottle cap concave mold 7 is demolded, the spring 243 has a restoring tendency to drive the slide rod 102 to abut against the end surface of the poured bottle cap, that is, when the bottle cap concave mold 7 and the side surface of the bottle cap are demolded, the slide rod 102 abuts against the end surface of the bottle cap, so that the bottle cap is stably fixed on the bottle cap convex mold 6 when the bottle cap and the bottle cap concave mold 7 are demolded, the relative position of the bottle cap and the bottle cap convex mold 6 is not changed, the bottle cap is prevented from being deformed by tension, so as to facilitate subsequent rotation of the bottle cap, and the bottle cap and the bottle cap convex mold 6 are easily demolded, and the pouring quality of the bottle cap is ensured.

[0077] The preferred embodiments of the application have been described above, but the application is not limited to the above. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A bottle cap production apparatus, comprising a punch base and a die base, wherein a bottle cap punch is detachably disposed within the punch base, and the bottle cap punch has an injection inlet hole, characterized in that... : The concave mold base is provided with an installation hole, and a bottle cap concave mold is slidably disposed in the installation hole. The bottle cap concave mold is provided with a pouring hole, a sealing hole, a first limiting hole, a second limiting hole, and an installation groove that are interconnected. A pressing sleeve is tightly disposed in the installation groove, and one end of the pressing sleeve is fixed to the inner wall of the installation hole. A spring is provided between the bottle cap concave mold and the installation hole. The crimping sleeve is provided with a variable diameter through hole that is small at both ends and large in the middle, and the bottom end of the crimping sleeve is provided with a drainage hole that communicates with the variable diameter through hole. The end of the bottle cap concave mold is provided with a sealing mechanism, which extends into the variable diameter through hole to seal the small diameter hole of the variable diameter through hole; the end of the pressing sleeve and the sealing mechanism that extends into the variable diameter through hole is flush with the inner wall of the casting hole. After the bottle cap convex mold and bottle cap concave mold are closed, a casting chamber is formed inside. The pressing sleeve can extend from the sealing hole away from the sealing mechanism and press against the bottle cap convex mold, thereby connecting the injection inlet and the variable diameter through hole.

2. The bottle cap production apparatus according to claim 1, characterized in that: The mounting holes are multi-segment stepped holes of different diameters, namely a sealing hole, a first limiting hole, and a second limiting hole, and the sealing hole and the casting hole are directly connected; the pressing sleeve is a multi-segment stepped cylinder of different diameters, namely a first limiting cylinder, a second limiting cylinder, and a third limiting cylinder; the first limiting cylinder is set close to the sealing hole, the second limiting cylinder is set close to the first limiting hole, and the third limiting cylinder is set close to the second limiting hole.

3. The bottle cap production apparatus according to claim 2, characterized in that: A second spring is provided in the cavity between the outer wall of the first limiting cylinder and the first limiting hole; a third spring is provided in the cavity between the outer wall of the second limiting cylinder and the second limiting hole.

4. The bottle cap production apparatus according to claim 3, characterized in that: The inside of the crimping sleeve is provided with a sliding hole one and a sliding hole two in sequence. The diameter of the sliding hole one is larger than the diameter of the sliding hole two. A sealing ring is provided at the end of the sliding hole two. The inner diameter of the sealing ring is the same as the inner diameter of the sliding hole one.

5. The bottle cap production apparatus according to claim 4, characterized in that: The sealing mechanism includes a pressure cap and a slide rod fixed on the pressure cap; the end of the bottle cap mold is provided with an installation groove, and the pressure cap is fixed in the installation groove; the slide rod is closely attached to the sealing ring and the sliding hole, forming a plastic discharge cavity between the sliding hole and the slide rod; a fixing rod is provided on the mold base, and a drainage hole is provided inside the fixing rod. The fixing rod passes through the pressure cap and the pressing sleeve and is threadedly connected, and the drainage hole and the drainage hole are connected; a spring is sleeved on the fixing rod between the pressure cap and the inner wall of the mold base.

6. The bottle cap production apparatus according to claim 4, characterized in that: The sealing mechanism includes a convex ring and two slide rods, a second and a third, fixed on the convex ring. The length of the third slide rod is greater than the length of the second slide rod. The end of the bottle cap mold has a second mounting groove, and the circumference of the bottle cap mold has a guide hole. A pressure cap is placed in the second mounting groove. The second slide rod is closely attached to the sealing ring and the first sliding hole, forming a second plastic discharge cavity between the second sliding hole and the second slide rod. The third slide rod is placed in the guide hole and extends to the outer end of the bottle cap mold. A fixing rod is provided on the mold base. A drainage hole is provided inside the fixing rod. The fixing rod passes through the convex ring, the second pressure cap, and the pressing sleeve and is threadedly connected. The drainage hole and the drainage hole are connected. A spring is fitted on the fixing rod between the convex ring and the inner wall of the mold base.

7. The bottle cap production apparatus according to claim 5 or 6, characterized in that: The punch seat and the die seat are mounted on the housing, and the die seat is connected to and driven by the mold closing cylinder.

8. The bottle cap production apparatus according to claim 5 or 6, characterized in that: The punch and die are mounted on a housing, which houses a hot-melt mechanism and an injection mechanism. The hot-melt mechanism includes an outer cover, a furnace, and a heating pipe positioned between the outer cover and the furnace. The outer cover has an air inlet pipe and an air outlet pipe, and the furnace has a feed pipe and a discharge pipe. The injection mechanism includes an injection cylinder, an injection barrel, and a piston mounted on the inner wall of the injection barrel. The air outlet pipe and the discharge pipe are connected to the injection barrel. The other end of the feed pipe is connected to a drainage hole. The punch has a main channel that communicates with the injection inlet. The lower end of the main channel is connected to the injection barrel via a pipe, and the upper end of the main channel is connected to a vacuum device.

9. The bottle cap production apparatus according to claim 8, characterized in that: The syringe is provided with a connector, which includes an outer sleeve and an inner sleeve. The outer sleeve is threaded into the inner hole of the syringe. The inner sleeve is provided with a filter cartridge, which is slidably disposed close to the inner hole of the outer sleeve. A sealing ring is provided at the end of the inner sleeve.

Images