A high-efficiency cover manufacturing device

Abstract

The present application relates to the technical field of bottle cap production, and proposes a high-efficiency cap making equipment, which comprises a feeding device, an extruding device, a scraping and feeding device, a pressing mold rotating disc device, a pressing mold and a discharging device; the extruding device comprises a pressure increasing mechanism, a pressure sensor, a cooling temperature control mechanism, a discharging mechanism and an electric control box; the output end of the pressure increasing mechanism is provided with a discharging pipe connected with the discharging mechanism; the pipe wall of the discharging pipe is embedded with a flow sensor and a temperature sensor; the discharging mechanism comprises a steering box, a feeding pipe, a feeding nozzle and a steering column; the steering box is provided with an inlet channel, a discharging channel and a discharging channel; the steering box is further provided with a steering groove; the steering column is rotatably arranged in the steering groove; one end of the column surface of the steering column is recessed to form a material passing groove; the extruding material can pass through the material passing groove and enter the discharging channel or the discharging channel from the inlet channel; the extruding temperature is stable; the active cooling ensures the stability of the extruding amount and the product quality; the flexible discharging and waste discharge through the discharging direction can save the cost.

Description

Technical Field

[0001] This invention relates to the technical field of bottle cap production, and in particular to a high-efficiency cap-making device. Background Technology

[0002] Plastic bottle caps are indispensable packaging components in the food, beverage, daily necessities, and pharmaceutical industries. Their production methods mainly include two categories: injection molding and compression molding. Among them, compression molding has gradually become the mainstream method for plastic bottle cap production due to its advantages such as no injection points, high raw material utilization, and low energy consumption.

[0003] Existing technology, such as Chinese patent CN101623908B, discloses a cap-making machine, which includes a molding disc, a cutting disc, and an extruder. The molding disc has a central rotating shaft and can rotate around it. At least one molding unit is arranged around the periphery of the molding disc, equidistant from and uniformly distributed with respect to the central rotating shaft. Each molding unit includes a matching upper mold and a bottom mold with a cavity. The molding disc is equipped with a lifting device for controlling the raising and lowering of the molding units and a demolding device. The cutting disc has a rotating shaft parallel to the central rotating shaft of the molding disc and rotates around it. At least one cutter is arranged on its circumference, and a portion of the cutting disc's periphery is located between the upper and bottom molds of the molding disc. The cutting disc also has a pushing device for pushing the cut material onto the bottom mold. The extruder's extrusion port is upward-facing and located below the cutter on the cutting disc. This cap-making machine heats and plasticizes plastic raw materials through an extruder and then extrudes them upwards. When the cutting disc rotates, the cutter cuts and scrapes the extruded strip material. Then, the pushing device pushes the blank into the bottom mold cavity. During the rotation of the molding disc, the upper mold and the bottom mold close and press to form a bottle cap. This achieves continuous operation and production of plastic caps without injection points. It has high productivity, low energy consumption, high raw material utilization, and no flow channel waste.

[0004] However, existing cap-making machines still have the following shortcomings in practical applications: Firstly, the extrusion unit lacks pressure-flow dual closed-loop control. The extruder of the capping machine only relies on the screw speed to control the extrusion volume. There is no pressure sensor in the pressurization section for closed-loop pressure detection, nor is there a flow sensor in the discharge section for direct flow detection. When the viscosity of the material changes due to temperature fluctuations or batch differences of raw materials, the actual discharge volume cannot be accurately controlled by the screw speed alone. This results in deviations in the amount of material fed into each die, which in turn causes inconsistent cap weight and size deviations, limiting the product qualification rate and consistency. Secondly, the extrusion unit lacks two-way active temperature control. The extruder of the capping machine uses a heater to heat and plasticize the barrel. When the material temperature is too high due to factors such as screw shearing and friction, there is no active cooling means. It can only rely on turning off the heater and passively waiting for natural heat dissipation to cool down. The temperature control response is lagging, which can easily lead to temperature overshoot, resulting in large fluctuations in material temperature, which in turn affects the stability of the extrusion volume and the molding quality of the product. Third, the discharge mechanism lacks a flow direction switching function. The extruder outlet of the cap-making machine is set directly upwards, and the material is directly scraped by the cutter after extrusion. There is no independent discharge direction and unloading waste discharge channel. During the start-up and debugging stage, the initial extruded material with unstable temperature and uneven composition will directly enter the mold, causing waste or mold contamination. During shutdown maintenance, the material remaining in the pipeline cannot be discharged easily. After cooling and solidification, it is easy to block the channel, increasing the maintenance difficulty and the preheating waiting time for the next start-up. Summary of the Invention

[0005] To address the aforementioned shortcomings, the present invention aims to propose a highly efficient cap-making device that solves the problems of unstable extrusion temperature, lack of active cooling affecting the stability of extrusion volume and product molding quality, and poor flexibility due to the lack of independent discharge steering and unloading waste discharge channels in existing cap-making machines.

[0006] To achieve this objective, the present invention adopts the following technical solution: A high-efficiency cap-making device includes a feeding device, an extrusion device, a scraping and feeding device, a pressure die turntable device, a pressing die, and a feeding device. The output end of the feeding device is connected to the input end of the extrusion device. The output end of the extrusion device is provided with the scraping and feeding device. The rotating disk of the pressing die turntable is provided with a plurality of pressing dies along the circumference. The scraping and feeding device scrapes material from the output end of the extrusion device and feeds it into the pressing die; The pressing mold is used to close the mold, press the bottle cap, and output the bottle cap to the feeding device; The extrusion device includes a pressurization mechanism, a pressure sensor, a cooling and temperature control mechanism, a discharge mechanism, and an electrical control box; The pressurizing mechanism is located at the output end of the feeding device; the pressure sensor is located between the feeding device and the pressurizing mechanism. The output end of the pressurizing mechanism is provided with a discharge pipe connected to the discharge mechanism; The cooling and temperature control mechanism is sleeved on the outer periphery of the discharge pipe, and the cooling and temperature control mechanism is used to cool and control the temperature of the discharge pipe; The discharge pipe has a flow sensor and a temperature sensor embedded in its wall, and both the flow sensor and the temperature sensor are located between the cooling and temperature control mechanism and the discharge mechanism. The pressure sensor, flow sensor, and temperature sensor are respectively connected to the electrical control box, and the electrical control box is respectively connected to the feeding device, the pressurizing mechanism, and the cooling and temperature control mechanism; The discharge mechanism includes a steering box, a feeding pipe, a feeding nozzle, and a steering column. The steering box is provided with a feeding channel, a discharging channel and a unloading channel. The feeding channel is parallel to the discharging pipe; the discharging channel is perpendicular to the feeding channel and extends upward. The feeding pipe is located at the outlet of the discharge channel, and the feeding nozzle is located at the output end of the feeding pipe; The feeding nozzle has a guide surface inside, and the inner diameter of the guide surface near the feeding nozzle inlet is larger than the inner diameter near the feeding nozzle outlet. The unloading channel is parallel to the discharge channel and is vertically downward, and the unloading channel is connected to the feeding channel; The steering box is also provided with a steering groove, which is perpendicular to the feeding channel, the discharging channel and the unloading channel respectively. The steering groove is connected to the connection of the feeding channel, the discharging channel and the unloading channel. The steering column is rotatably arranged in the steering groove. One end of the column surface of the steering column is recessed and provided with a material passage groove. The extruded material can pass through the material passage groove from the feeding channel and enter the discharging channel or the unloading channel.

[0007] Preferably, the steering box is provided with a rotation drive mechanism, the drive end of which is connected to the outer end of the steering column; the rotation drive mechanism includes a swing member and a steering cylinder, one end of the swing member is fixedly connected to the outer end of the steering column, and the extension end of the steering cylinder is rotatably connected to the other end of the swing member.

[0008] Preferably, the boosting mechanism includes a boosting motor, a boosting reducer, a transmission component, and a melt pump; The output end of the feeding device is connected to the feed end of the melt pump, and the discharge end of the melt pump is connected to the discharge pipe. The output end of the booster motor is connected to the booster reducer, the output end of the booster reducer is connected to one end of the transmission component, and the other end of the transmission component is connected to the drive end of the melt pump. The cooling temperature control mechanism includes a cooling water heat exchanger, an upper clamp, and a lower clamp. The upper clamp and the lower clamp are respectively provided with an upper water channel and a lower water channel. The upper clamp is provided with a water inlet communicating with the upper water channel, and the lower clamp is provided with a water outlet communicating with the lower water channel. The inlet nozzle is connected to the cold water end of the cooling water heat exchanger, the outlet nozzle is connected to the return water end of the cooling water heat exchanger, and the cooling water heat exchanger is communicatively connected to the electrical control box. The upper clamp and the lower clamp are connected and fixed by bolts. After the upper clamp and the lower clamp are connected and fixed, the upper water channel and the lower water channel are connected to form a spiral water channel around the discharge pipe.

[0009] Preferably, the feeding device includes a feeding frame, a drive mechanism, a pusher screw, a feeding mechanism, and a material cylinder; The drive mechanism includes a feed motor and a reducer, which are respectively mounted on the feed frame. The output end of the feed motor is connected to the input end of the reducer. The feeding mechanism is located above and communicates with the material cylinder; the pushing screw is rotatably disposed inside the material cylinder; The barrel includes several barrel units; each barrel unit includes a barrel body, a connecting flange, and a heating device, with connecting flanges at both ends of the barrel body; the heating device is sleeved on the outer periphery of the barrel body; the several barrel units are detachably connected to each other via connecting flanges, and the first barrel unit closest to the drive mechanism is detachably connected to the drive mechanism via a connecting flange; an extrusion channel is provided in the middle of the barrel body, and the several extrusion channels cooperate to form an extrusion flow channel; The output end of the reducer is connected to one end of the pusher screw, and the other end of the pusher screw passes through the feeding mechanism and the extrusion channel in sequence; The heating device includes an outer tube, a heating wire, an asbestos layer, and a metal shell. The outer tube is fitted around the outer periphery of the cylinder, and a spiral groove is provided on the outer periphery of the outer tube. The heating wire is embedded in the spiral groove. The asbestos layer covers the outer periphery of the outer tube and the heating wire, and the metal shell covers the outer periphery of the asbestos layer.

[0010] Preferably, the material cylinder unit further includes a blower and insulation cotton. The blower includes a blower hood and a blower. The blower hood covers the outer periphery of the heating device, and the blower is located on the outside of the blower hood, with the air inlet of the blower communicating with the inside of the blower hood. The insulation cotton is fitted into the gap between the heating device and the inner wall of the blower hood.

[0011] Preferably, the scraping and feeding device includes a feeding turntable and multiple cutting and feeding mechanisms; the cutting and feeding mechanisms are arranged circumferentially below the feeding turntable; The material cutting and feeding mechanism includes a base, two sets of scraper seats, a scraper blade, a limiting seat, and a feeding component; The base is connected to the bottom surface of the feeding turntable. A feeding groove is recessed in the middle of the bottom surface of the base. The feeding component is disposed in the feeding groove. Two sets of scraper seats are respectively disposed on both sides of the feeding groove. The scraper seats are connected to the base. The limiting seat is disposed on the side of the two sets of scraper seats, and the two ends of the limiting seat are respectively connected to the two sets of scraper seats; The scraper is disposed between the limiting seat and the scraper seat, and the scraper is slidably connected to the limiting seat and the scraper seat respectively; The scraper blade is connected to the limiting seat via an elastic element. Under the elastic force of the elastic element, the scraper blade tends to move vertically downward away from the base.

[0012] Preferably, each end of the scraper is provided with a sliding groove in the vertical direction, and a set of elastic elements is provided in each sliding groove; The elastic element includes a sliding block, a second spring, and two sets of locking bolts; The sliding block is slidably disposed in the sliding groove and is connected to the limiting seat. One end of the second spring is connected to the sliding block, and the other end of the second spring is connected to the bottom surface of the sliding groove. The sliding block is provided with a connecting hole, and the two ends of the limiting seat are respectively provided with mounting holes. The locking bolt passes through the mounting hole and is threadedly connected to the connecting hole respectively. The mounting hole is configured as a vertically elongated oval hole, and the locking bolt is movably disposed within the elongated oval hole.

[0013] Preferably, the pressure mold turntable device includes a rotary drive and two layers of pressing discs; the rotary drive is used to drive the two layers of pressing discs to rotate. The pressing mold includes an upper mold base and a lower mold base; the upper mold base and the lower mold base are respectively arranged circumferentially on the two layers of the pressing plate; the lower mold base is installed on the pressing plate by a pressing drive component, which is used to drive the lower mold base to move closer to or away from the upper mold base. The upper mold base includes a fixed sleeve, a positioning sleeve, a cylindrical sleeve, a telescopic sleeve, a positioning sleeve, an upper mold core, an ejector mold core, and an inner cooling mold core; The bottom of the fixing sleeve is fixedly connected to the cylindrical sleeve, the positioning sleeve is detachably disposed on the top of the fixing sleeve, and the fixing sleeve has an installation cavity inside. The telescopic sleeve is slidably disposed inside the cylindrical sleeve, and the lower half of the telescopic sleeve protrudes outside the cylindrical sleeve for mold closing with the lower mold base; the top of the cylindrical sleeve and the telescopic sleeve are connected by a first mold closing spring; when the upper mold base and the lower mold base are closed, the first mold closing spring is compressed and provides downward pressure to the telescopic sleeve; The upper mold core is slidably disposed inside the telescopic sleeve, and the lower end of the upper mold core protrudes outside the telescopic sleeve for mold closing with the lower mold core of the lower mold base; the positioning sleeve is sleeved on the top of the inner side of the cylindrical sleeve, and the top of the upper mold core is connected to the positioning sleeve through a second mold closing spring; when the upper mold base and the lower mold base are closed, the second mold closing spring is stretched by force, providing a downward pulling force to the upper mold core; The upper mold core is provided with an inner cooling mold core. The top of the inner cooling mold core is connected to the positioning sleeve. The upper mold core and the inner cooling mold core are slidably connected. The inner cooling mold core is used to cool the bottom surface of the bottle cap after the mold is closed. The ejector core is slidably disposed between the upper mold core and the inner cooling mold core. The ejector core is sleeved on the bottom outer periphery of the inner cooling mold core. The ejector core is connected through an external pneumatic system. Under the control of the pneumatic system, the ejector core ejects the bottle cap after the mold is closed. A sealed cooling water channel is provided between the upper mold core and the ejector mold core. The cooling water channel is connected to the water inlet and water outlet of the upper mold core, respectively. The cooling water channel is used to cool the side wall of the bottle cap after the mold is closed.

[0014] Preferably, the upper mold core includes a water inlet sleeve and a pressing sleeve, and the cooling water channel includes a water inlet channel, a water outlet channel, a water inlet flow channel, and a water outlet flow channel; The water inlet sleeve and the pressing sleeve are arranged vertically and sleeved on the outer periphery of the inner cooling mold core; The water inlet sleeve is provided with a water inlet channel and a water outlet channel inside, and an annular cooling water channel is formed between the bottom of the pressing sleeve and the bottom of the ejector core; The outer wall of the ejector core is recessed in the vertical direction and has the water inlet channel and the water outlet channel. One end of the water inlet channel is connected to the water inlet channel and the other end is connected to the annular cooling water channel. One end of the water outlet channel is connected to the water outlet channel and the other end is connected to the annular cooling water channel. The top of the water inlet sleeve is provided with a water inlet connector, a water outlet connector, and an air nozzle connector, all of which are located within the installation cavity. The positioning sleeve is provided with a water pipe channel communicating with the installation cavity. One end of the water inlet connector is connected to the water inlet channel, and the other end is connected to an external water pipe that extends through the water pipe channel to the installation cavity. One end of the water outlet connector is connected to the water outlet channel, and the other end is connected to an external water pipe that extends through the water pipe channel to the installation cavity. The lower part of the water inlet sleeve is provided with an ejection groove, the upper part of the water inlet sleeve is sleeved on the outer periphery of the inner cooling mold core, and the ejection mold core is disposed in the ejection groove of the lower part of the water inlet sleeve. An airflow pipe is provided inside the water inlet sleeve. One end of the airflow pipe is connected to one end of the air nozzle connector, and the other end is connected to the top of the top outlet groove. The positioning sleeve is provided with an air tube channel, and the other end of the air nozzle connector is connected to an external air tube that extends through the air tube channel to the installation cavity.

[0015] Preferably, the lower mold base includes an outer sleeve, a lower mold core, an upper water sleeve, a water pipe fixing sleeve, an inner sleeve, and a cooling water inlet pipe; The lower mold core is located at the top inside the outer sleeve, and the bottom surface of the lower mold core is recessed and provided with several cooling water channels. The upper water sleeve is located at the bottom of the lower mold core, and the bottom of the upper water sleeve is provided with the water pipe fixing sleeve. The upper water sleeve has an upper water channel that is connected to the cooling water channel and the cooling water inlet pipe respectively. The bottom of the water pipe fixing collar is recessed and has several external drainage channels. The inner sleeve has a drainage channel running through it. The external drainage channels are connected to the drainage channel. The cooling water inlet pipe passes through the drainage channel of the inner sleeve and is connected and fixed to the water pipe fixing collar; An annular drainage channel is formed between the outer sleeve, the lower mold core, the upper water sleeve, and the water pipe fixing sleeve. The annular drainage channel is connected to the cooling water channel and the outer drainage channel, respectively. A plurality of cooling water channels are arranged in a circular pattern along the central axis of the lower mold core, and a plurality of external drainage channels are arranged in a circular pattern along the central axis of the water pipe fixing collar. The lower mold core is also provided with an annular cooling channel inside, the annular cooling channel is arranged around the mold cavity of the lower mold core, and the annular cooling channel is connected to the cooling water channel and the annular drainage channel respectively; The top edge of the outer sleeve protrudes inward and is provided with a limiting flange, which is used to limit the lower mold core.

[0016] One of the above technical solutions has the following advantages or beneficial effects: 1. The electrical control box receives real-time feedback signals from pressure sensors, flow sensors, and temperature sensors, and after unified processing, sends control commands to the extrusion drive mechanism, feeding device, pressurizing mechanism, and cooling temperature control mechanism respectively. Each control loop is independent yet coordinated. The feedback signals from pressure and flow sensors are mainly used to adjust the power output of the extrusion drive mechanism and pressurizing mechanism, while the feedback signals from temperature sensors are mainly used to adjust the heating efficiency of the feeding device and the cooling efficiency of the cooling temperature control mechanism, ensuring the stability of constant temperature and quantity in extrusion. This effectively avoids product weight deviation and dimensional inconsistency caused by fluctuations in extrusion volume and temperature, significantly improving product qualification rate and product consistency. 2. When the material temperature is too high, the cooling mechanism can be actively activated to quickly cool down the material without waiting for natural heat dissipation. This significantly shortens the temperature control response time and effectively suppresses temperature overshoot. When the material temperature is too low, the heating efficiency is enhanced to ensure that the discharge temperature remains stable within the process requirements. The entire machine achieves fully automated closed-loop control from material plasticization and pressurized extrusion to constant temperature and quantity output, greatly reducing reliance on operator experience and improving the equipment's intelligence level and production efficiency.

[0017] 3. In the initial stage of machine startup, the extruded material often has unstable temperature and uneven composition, or the sensor detects that the material does not meet the requirements. By switching to the discharge channel, waste can be discharged directly, avoiding unqualified material from entering the mold and causing scrap or mold contamination. When stopping the machine, switching to the discharge channel can empty the residual material in the pipeline, preventing the material from cooling and solidifying in the pipeline and blocking the channel, which greatly shortens the preheating waiting time for the next startup. The cylindrical surface of the steering column is a sealing surface in the area that does not correspond to the feed chute. When the feed chute is aligned with a certain channel, the sealing surface blocks other channels to prevent material from leaking from non-target channels and ensure the reliability of flow direction switching. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of a feeding device according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the barrel according to one embodiment of the present invention; Figure 4 This is a schematic diagram of an extrusion apparatus according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the discharge mechanism according to an embodiment of the present invention; Figure 6 yes Figure 5 Enlarged view of point A; Figure 7 This is a schematic diagram of a partial structure of an extrusion device according to an embodiment of the present invention; Figure 8 This is a schematic diagram of a scraping and feeding device according to an embodiment of the present invention; Figure 9 This is a schematic diagram of a material cutting and feeding mechanism according to an embodiment of the present invention; Figure 10 This is a schematic diagram of a pressing mold according to an embodiment of the present invention; Figure 11 This is a cross-sectional view of a pressing mold according to an embodiment of the present invention; Figure 12 This is a cross-sectional view of the upper mold core of a pressing mold according to an embodiment of the present invention; Figure 13 This is a perspective sectional view of the lower mold base according to an embodiment of the present invention; The components include: feeding device 1, feeding frame 11, drive mechanism 12, feeding motor 121, reducer 122, pusher screw 13, feeding mechanism 14, material cylinder 15, material cylinder unit 150, cylinder body 151, connecting flange 152, heating device 153, outer sleeve 1531, heating wire 1532, asbestos layer 1533, metal shell 1534, extrusion channel 154, blower device 155, blower hood 1551, blower 1552, and insulation cotton 156. Extrusion device 2, pressurizing mechanism 21, pressurizing motor 211, pressurizing reducer 212, transmission component 213, melt pump 214, pressure sensor 22, cooling temperature control mechanism 23, cooling water heat exchanger 231, upper clamp 232, lower clamp 233, upper water channel 23a, lower water channel 23b, water inlet 23c, water outlet 23d, discharge mechanism 24, steering box 241, feeding channel 2a, discharge channel 2b, unloading channel 2c, guide surface 2d, steering groove 2e, material passage 2f, feeding pipe 242, feeding nozzle 243, steering column 244, electrical control box 25, discharge pipe 26, flow sensor 261, temperature sensor 262, rotation drive mechanism 27, swing component 271, steering cylinder 272; 3. Scraping and feeding device, 31. Feeding turntable, 32. Cutting and feeding mechanism, 321. Base, 322. Scraping seat, 323. Scraping blade, 3231. Sliding groove, 324. Limiting seat, 3241. Mounting hole, 3241. Feeding component, 325. Elastic element, 326. Sliding block, 3262. Second spring, 3263. Locking bolt, 3264. Connecting hole, 3265. Pressing mold turntable device 4; Compression mold 5, upper mold base 5a, fixing sleeve 51, positioning sleeve 52, water pipe channel 521, air pipe channel 522, cylindrical sleeve 53, telescopic sleeve 54, positioning sleeve 55, upper mold core 56, ejector mold core 57, inner cooling mold core 58, mounting cavity 511, first mold closing spring 59, second mold closing spring 510, water inlet sleeve 561, water inlet channel 5611, water outlet channel 5612, ejector groove 5613, pressing sleeve 5 62. Annular cooling water channel 5621, water inlet connector 563, water outlet connector 564, water inlet channel 571, water outlet channel 572, lower mold base 5b, outer sleeve b1, limiting flange b11, lower mold core b2, cooling water channel b21, upper water collar b3, upper water passage b31, water pipe fixing collar b4, outer drainage channel b41, inner sleeve b5, drainage channel b51, cooling water inlet pipe b6, annular drainage channel b7, annular cooling channel b8; Feeding device 6. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0021] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention from the specific circumstances.

[0023] The following is combined with Figures 1 to 13 The present invention describes an efficient cap-making device, comprising a feeding device 1, an extrusion device 2, a scraping and feeding device 3, a pressure die turntable device 4, a pressing die 5, and a discharging device 6. The output end of the feeding device 1 is connected to the input end of the extrusion device 2. The output end of the extrusion device 2 is provided with the scraper feeding device 3. The rotating disk of the pressure mold turntable device 4 is provided with a plurality of the pressing molds 5 along the circumference. The scraping and feeding device 3 scrapes material from the output end of the extrusion device 2 and feeds it into the pressing mold 5; The pressing mold 5 is used to close the mold, press the bottle cap, and output the bottle cap to the feeding device 6; The extrusion device 2 includes a pressurizing mechanism 21, a pressure sensor 22, a cooling and temperature control mechanism 23, a discharge mechanism 24, and an electrical control box 25; The pressurizing mechanism 21 is disposed at the output end of the feeding device 1; the pressure sensor 22 is disposed between the feeding device 1 and the pressurizing mechanism 21; The output end of the pressurizing mechanism 21 is provided with a discharge pipe 26 connected to the discharge mechanism 24; The cooling and temperature control mechanism 23 is sleeved on the outer periphery of the discharge pipe 26, and the cooling and temperature control mechanism 23 is used to cool and control the temperature of the discharge pipe 26. The discharge pipe 26 has a flow sensor 261 and a temperature sensor 262 embedded in its wall. The flow sensor 261 and the temperature sensor 262 are both located between the cooling and temperature control mechanism 23 and the discharge mechanism 24. The pressure sensor 22, flow sensor 261 and temperature sensor 262 are respectively connected to the electrical control box 25, and the electrical control box 25 is respectively connected to the feeding device 1, the pressurizing mechanism 21 and the cooling temperature control mechanism 23; The discharge mechanism 24 includes a steering box 241, a feeding pipe 242, a feeding nozzle 243, and a steering column 244. The turning box 241 is provided with a feeding channel 2a, a discharging channel 2b and a unloading channel 2c. The feeding channel 2a is parallel to the discharging pipe 26; the discharging channel 2b is perpendicular to the feeding channel 2a and extends upward. The feeding pipe 242 is disposed at the outlet of the discharge channel 2b, and the feeding nozzle 243 is disposed at the output end of the feeding pipe 242; The feed nozzle 243 is provided with a guide surface 2d inside, and the inner diameter of the guide surface 2d near the inlet of the feed nozzle 243 is larger than the inner diameter near the outlet of the feed nozzle 243. The unloading channel 2c is parallel to the discharge channel 2b and is set vertically downward, and the unloading channel 2c is connected to the feeding channel 2a; The steering box 241 is also provided with a steering groove 2e, which is perpendicular to the feeding channel 2a, the discharging channel 2b and the unloading channel 2c respectively. The steering groove 2e is connected to the connection of the feeding channel 2a, the discharging channel 2b and the unloading channel 2c. The steering column 244 is rotatably arranged in the steering groove 2e. One end of the column surface of the steering column 244 is recessed and provided with a feed groove 2f. The extruded material can pass through the feed channel 2a through the feed groove 2f and enter the discharging channel 2b or the unloading channel 2c.

[0024] The specific workflow is as follows: 1. Feeding and Melting Extrusion: The plastic raw material enters the feeding device 1, where it is sheared and heated, gradually transforming from a solid state to a uniform molten state. The plasticized molten material is then conveyed to the pressurizing mechanism 21, which applies secondary pressure to improve the stability and uniformity of the discharge pressure. A pressure sensor 22 is positioned between the feeding device 1 and the pressurizing mechanism 21 to detect the melt pressure at that location in real time and transmits the pressure signal to the electrical control box 25. The electrical control box 25, based on the deviation between the preset target pressure value and the actual detected pressure value, uses a PID control algorithm... The driving power (i.e., screw speed) of the feeding device 1 and the boosting power of the boosting mechanism 21 are adjusted respectively: when the detected pressure is lower than the target value, the electrical control box 25 increases the shearing speed or heating temperature of the feeding device 1 to increase the material conveying capacity, and / or increases the boosting power of the boosting mechanism 21 to increase the output pressure; when the detected pressure is higher than the target value, the power of the feeding device 1 and / or the boosting mechanism 21 is reduced accordingly, thereby forming a pressure closed-loop feedback control loop of pressure sensor 22-electrical control box 25-feeding device 1 / boosting mechanism 21 to ensure that the extrusion pressure is always stable within the set range.

[0025] The molten material, pressurized by the pressurizing mechanism 21, is conveyed to the discharge mechanism 24 through the discharge pipe 26. A flow sensor 261 is embedded in the wall of the discharge pipe 26. This flow sensor 261 is located between the cooling and temperature control mechanism 23 and the discharge mechanism 24, and is used to detect the actual flow rate of the molten material in the discharge pipe 26 in real time. The flow signal is transmitted to the electrical control box 25. The electrical control box 25 compares the actual flow rate with a preset target flow rate and adjusts the output power of the feeding device 1 and / or the pressurizing mechanism 21 according to the deviation signal: when the actual flow rate is too high, the rotation speed of the feeding device 1 and / or the pressurizing mechanism 21 is appropriately reduced. The power of the booster mechanism 21 is adjusted accordingly when the actual flow rate is low, thus forming a closed-loop feedback control loop for flow rate control between flow sensor 261, electrical control box 25, feeding device 1, and booster mechanism 21, achieving a constant output of extruded material. The pressure control loop and the flow control loop work together: pressure sensor 22 mainly ensures the pressure stability of the booster section, and flow sensor 261 mainly ensures the flow accuracy of the discharge section. The two are coordinated through electrical control box 25 to jointly adjust the power of feeding device 1 and booster mechanism 21, achieving dual precise control of pressure and flow.

[0026] A temperature sensor 262 is embedded in the wall of the discharge pipe 26. The temperature sensor 262 is located between the cooling and temperature control mechanism 23 and the discharge mechanism 24. It is used to detect the actual temperature of the molten material in the discharge pipe 26 in real time and transmit the temperature signal to the electrical control box 25. The electrical control box 25 performs bidirectional temperature regulation based on the deviation between the preset target temperature value and the actual detected temperature value: when the actual temperature is lower than the target value, the electrical control box 25 increases the heating power of the feeding device 1 (such as increasing the heating voltage or duty cycle) to enhance the heating efficiency of the material and raise the material temperature back to the target value; when the actual temperature is higher than the target value, the electrical control box 25 activates or enhances the cooling efficiency of the cooling and temperature control mechanism 23 (such as increasing the cooling water flow rate or increasing the cooling air velocity) to actively cool the material in the discharge pipe 26 and lower the material temperature back to the target value. This forms a closed-loop temperature feedback control loop of temperature sensor 262-electrical control box 25-feeding device 1 / cooling and temperature control mechanism 23. Through the coordinated regulation of heating and cooling, the discharge temperature is accurately stabilized within the range required by the process. The electrical control box 25 serves as the central control unit of the entire machine. It receives real-time feedback signals from the pressure sensor 22, flow sensor 261, and temperature sensor 262, and processes them uniformly before issuing control commands to the feeding device 1, the pressurizing mechanism 21, and the cooling temperature control mechanism 23. Each control loop is independent yet coordinated. The feedback signals from the pressure and flow sensors 261 are mainly used to adjust the power output of the feeding device 1 and the pressurizing mechanism 21, while the feedback signal from the temperature sensor 262 is mainly used to adjust the heating efficiency of the feeding device 1 and the cooling efficiency of the cooling temperature control mechanism 23. Furthermore, since changes in material temperature directly affect its viscosity and flowability, which in turn affect pressure and flow rate, the electrical control box 25 performs comprehensive compensation calculations on each parameter in its control algorithm. This ensures constant temperature and volume extrusion control under dynamic operating conditions, guaranteeing the stability of constant temperature and volume extrusion. This effectively avoids product weight deviations and dimensional inconsistencies caused by fluctuations in extrusion volume and temperature, significantly improving product qualification rate and product consistency.

[0027] Compared with existing technologies that rely solely on unidirectional heater adjustment and passively wait for natural heat dissipation, this invention can actively activate the cooling mechanism for rapid cooling when the material temperature is too high, eliminating the need to wait for natural heat dissipation. This significantly shortens the temperature control response time and effectively suppresses temperature overshoot. When the material temperature is too low, it enhances heating efficiency, ensuring that the discharge temperature remains stable within the process requirements. The entire machine achieves fully automated closed-loop control from material plasticization and pressurized extrusion to constant temperature and quantity output, greatly reducing reliance on operator experience and improving the equipment's intelligence level and production efficiency.

[0028] After being pressurized by the pressurizing mechanism 21, the molten material enters the feed channel 2a of the turning box 241 from the discharge pipe 26. Since the feed channel 2a is set parallel to the feeding device 1, the material enters the turning box 241 in a horizontal direction. Inside the turning box 241, the material changes from a horizontal direction to an upward direction and enters the vertically upward discharge channel 2b, completing a 90° flow direction change. The material after the change is conveyed upward through the discharge channel 2b to the feeding pipe 242, and then extruded through the feeding nozzle 243, which works in conjunction with the cutting mechanism to complete the material taking required for the bottle cap molding.

[0029] The feed nozzle 243 has a guide surface 2d inside. This guide surface 2d is a tapered cone, with a larger inner diameter near the inlet and a smaller inner diameter near the outlet. When the molten material passes through this tapered guide surface 2d, the cross-sectional area of ​​the flow channel gradually decreases, the material is gradually converged and accelerated, and the flow state changes from loose to dense and directional. Finally, it is extruded from the outlet with a uniform flow rate and a stable material flow pattern, making the flow velocity distribution on the discharge cross section more uniform. This avoids problems such as extrusion expansion and material flow deviation caused by uneven flow velocity, thereby ensuring the dimensional accuracy and surface quality of the subsequent cap making and significantly improving the density and uniformity of the discharge.

[0030] In a preferred embodiment, the feeding pipe 242 is equipped with a discharge flow rate detector and a discharge temperature detector. These detectors are located on the feeding pipe 242, at the final stage of the extrusion process, adjacent to the discharge nozzle. Compared to existing technologies that place sensors at the screw section or pressurization section inlet, this solution detects the final discharge state after pressurization, cooling, and reversal, eliminating measurement errors caused by temperature decay and flow loss from the intermediate section to the discharge port, resulting in higher control accuracy. The discharge flow rate detector ensures precise control of the discharge quantity, and the discharge temperature detector ensures precise control of the discharge temperature. Together with the coordinated operation of the electrical control box 25, the extrusion unit 2 achieves comprehensive closed-loop control of both flow rate and temperature parameters at the discharge end, ensuring that the extrusion quantity and temperature of each product are within the precise range required by the process.

[0031] 2. Scraping and feeding: The discharge mechanism 24 of the extrusion device 2 continuously outputs strip-shaped material. The scraping and feeding device 3 uses a mechanical scraper or cutting method to scrape a quantitative amount of continuous material from the output end of the extrusion device 2 and accurately feeds the scraped quantitative material into the cavity of the pressing mold 5 currently in the feeding position. The scraping amount and feeding sequence must be synchronized with the rotation rhythm of the turntable to ensure uniform feeding of each mold. 3. Mold closing, pressing and unloading: The pressing mold 5 closes and presses, the upper and lower molds close, and the forming pressure is applied to the material to press out the bottle cap shape. During the pressing process, the rotating disk continues to rotate. When the pressing mold 5 rotates to the unloading position, the mold opens and the cap is removed. The formed bottle cap is output to the unloading device 6. IV. The feeding device 6 receives the finished bottle caps and completes the subsequent collection and transportation.

[0032] Furthermore, the steering box 241 is provided with a rotation drive mechanism 27, the drive end of which is connected to the outer end of the steering column 244; the rotation drive mechanism 27 includes a swing member 271 and a steering cylinder 272, one end of the swing member 271 is fixedly connected to the outer end of the steering column 244, and the extension end of the steering cylinder 272 is rotatably connected to the other end of the swing member 271.

[0033] Specifically, the rotation drive mechanism 27 is mounted on the steering box 241, and its drive end is directly or indirectly connected to the outer end of the steering column 244, that is, the part of the steering column 244 that extends out of the steering box 241. When it is necessary to switch the material flow direction, the rotation drive mechanism 27 receives the control signal from the electrical control box 25 and drives the steering column 244 to rotate around its axis, so that the material passage 2f on the surface of the steering column 244 switches from aligning with the discharge channel 2b to aligning with the unloading channel 2c, or vice versa. The rotation drive mechanism 27 drives the steering column 244 to rotate to the target position and then stops. The steering column 244 self-locks and holds in the new position to ensure that the material passage 2f is stably aligned with the target channel. The material flow direction switching is completed. The rotation drive mechanism 27 is controlled by the electrical control box 25, realizing the automatic and precise control of the rotation angle of the steering column 244. The operator does not need to manually rotate the steering column 244 or disassemble the pipeline. The flow direction switching process is completed with one click, which greatly improves the convenience of operation and production efficiency, and also avoids the inaccurate positioning or misoperation that may be caused by manual operation. Risk: The piston rod at the extension end of the steering cylinder 272 is rotatably connected to the other end of the swing member 271 via a pin. One end of the swing member 271 is fixedly connected to the outer end of the steering column 244. When the piston rod of the steering cylinder 272 extends or retracts, it pushes or pulls the swing member 271 to swing around the axis of the steering column 244. The swing member 271 drives the steering column 244 to rotate synchronously. By controlling the extension and retraction stroke of the piston rod of the steering cylinder 272, the swing angle of the swing member 271 can be precisely controlled, thereby precisely controlling the steering. The rotation angle of column 244 ensures that the material passage 2f is accurately aligned with the discharge channel 2b or the unloading channel 2c. When switching to the discharge state, the piston rod of the steering cylinder 272 extends (or retracts), pushing the swing component 271 to rotate the steering column 244 to the discharge position. When switching to the unloading state, the piston rod of the steering cylinder 272 moves in the opposite direction, driving the steering column 244 to rotate to the unloading position. The extension and retraction stroke of the cylinder can be precisely controlled by a limit switch or a proportional valve to ensure the positioning accuracy of the steering column 244.

[0034] Furthermore, the boosting mechanism 21 includes a boosting motor 211, a boosting reducer 212, a transmission component 213, and a melt pump 214; The output end of the feeding device 1 is connected to the feed end of the melt pump 214, and the discharge end of the melt pump 214 is connected to the discharge pipe 26. The output end of the booster motor 211 is connected to the booster reducer 212, the output end of the booster reducer 212 is connected to one end of the transmission component 213, and the other end of the transmission component 213 is connected to the drive end of the melt pump 214. The cooling temperature control mechanism 23 includes a cooling water heat exchanger 231, an upper clamp 232 and a lower clamp 233. The upper clamp 232 and the lower clamp 233 are respectively provided with an upper water channel 23a and a lower water channel 23b. The upper clamp 232 is provided with a water inlet 23c that communicates with the upper water channel 23a, and the lower clamp 233 is provided with a water outlet 23d that communicates with the lower water channel 23b. The inlet nozzle 23c is connected to the cold water end of the cooling water heat exchanger 231, the outlet nozzle 23d is connected to the return water end of the cooling water heat exchanger 231, and the cooling water heat exchanger 231 is communicatively connected to the electrical control box 25. The upper clamp 232 and the lower clamp 233 are connected and fixed by bolts. After the upper clamp 232 and the lower clamp 233 are connected and fixed, the upper water channel 23a and the lower water channel 23b are connected and form a spiral water channel around the discharge pipe 26.

[0035] Specifically, after the feeding device 1 completes the plasticization and initial conveying of the material, it outputs the molten material to the feed end of the melt pump 214. After the booster motor 211 starts, its output power is reduced and increased in torque by the booster reducer 212, converting the high-speed, low-torque motor output into a low-speed, high-torque power output. Then, the power is transmitted to the drive end of the melt pump 214 through the transmission component 213, driving the pumping elements inside the melt pump 214, such as gears or screws, to rotate. During the rotation, the melt pump 214 applies precise boosting and quantitative conveying to the molten material from the feeding device 1, conveying the material at a stable high pressure and constant flow rate through the outlet. The material pipe 26 pushes the material to the discharge mechanism 24; the melt pump 214 requires a large driving torque under high pressure conditions. The booster reducer 212 converts the high speed of the motor into a low speed and high torque output, which precisely matches the working conditions of the melt pump 214, ensuring the stability and reliability of the boosting process and avoiding pumping jamming or flow fluctuations caused by insufficient torque; as a precision positive displacement pump, the melt pump 214 delivers a fixed volume of material per revolution. Therefore, by precisely controlling the speed of the booster motor 211, the discharge flow rate can be precisely controlled. With the closed-loop regulation of pressure and flow by the electrical control box 25, high-precision constant temperature and constant volume extrusion can be achieved.

[0036] Specifically, after the cooling water heat exchanger 231 cools the cooling water to the required process temperature, the cold water enters the upper water channel 23a of the upper clamp 232 from the cold water end through the inlet 23c, and then flows into the spiral water channel formed by the connection of the upper water channel 23a and the lower water channel 23b. The cooling water spirals along the axial direction of the discharge pipe 26 in the spiral water channel, and fully exchanges heat with the high-temperature molten material in the discharge pipe 26, removing excess heat from the material and achieving active cooling of the discharged material. After the heat exchange is completed... The return water flows from the drain 23b through the outlet 23d back to the return end of the cooling water heat exchanger 231. After being cooled again by the heat exchanger, it is recycled to form a closed cooling water circulation loop. The spiral water channel design causes the cooling water to flow in a spiral path around the outer periphery of the discharge pipe 26. On the one hand, it prolongs the residence time of the cooling water outside the discharge pipe 26 and improves the heat exchange efficiency. On the other hand, the spiral flow causes the cooling water to form a uniform cooling coverage around the discharge pipe 26, avoiding material temperature deviation caused by uneven local cooling.

[0037] The cooling water heat exchanger 231 is communicatively connected to the electrical control box 25. The electrical control box 25 adjusts the operating parameters of the cooling water heat exchanger 231, such as cooling water flow rate and cooling water temperature, according to the feedback signal from the temperature sensor 262, so as to achieve precise dynamic adjustment of cooling efficiency and ensure that the temperature of the discharged material is accurately and stably within the process requirements range. The upper clamp 232 and the lower clamp 233 are fixed by bolts, which is simple in structure and easy to disassemble and assemble. When it is necessary to clean the scale on the outer wall of the discharge pipe 26, check the water channel sealing, or replace the discharge pipe 26, the upper clamp 232 and the lower clamp 233 can be separated simply by loosening the bolts. There is no need to disassemble the entire cooling mechanism, which greatly shortens the maintenance time and improves the maintainability of the equipment.

[0038] Furthermore, the feeding device 1 includes a feeding frame 11, a drive mechanism 12, a pusher screw 13, a feeding mechanism 14, and a material cylinder 15; The drive mechanism 12 includes a feed motor 121 and a reducer 122, which are respectively mounted on the feed frame 11. The output end of the feed motor 121 is connected to the input end of the reducer 122. The feeding mechanism 14 is disposed above the material cylinder 15 and communicates with the material cylinder 15; the pushing screw 13 is rotatably disposed inside the material cylinder 15; The barrel 15 includes several barrel units 150; each barrel unit 150 includes a barrel body 151, a connecting flange 152, and a heating device 153. Both ends of the barrel body 151 are provided with connecting flanges 152. The heating device 153 is sleeved around the outer periphery of the barrel body 151. Several barrel units 150 are detachably connected to each other via connecting flanges 152, and the first barrel unit 150 closest to the drive mechanism 12 is detachably connected to the drive mechanism 12 via a connecting flange 152. An extrusion channel 154 is provided in the middle of the barrel body 151, and several extrusion channels 154 cooperate to form an extrusion flow channel. The output end of the reducer 122 is connected to one end of the pusher screw 13, and the other end of the pusher screw 13 passes through the feeding mechanism 14 and the extrusion channel in sequence. The heating device 153 includes an outer tube 1531, a heating wire 1532, an asbestos layer 1533, and a metal shell 1534. The outer tube 1531 is sleeved on the outer periphery of the cylinder 151, and the outer periphery of the outer tube 1531 is provided with a spiral groove. The heating wire 1532 is embedded in the spiral groove. The asbestos layer 1533 covers the outer periphery of the outer tube 1531 and the heating wire 1532. The metal shell 1534 covers the outer periphery of the asbestos layer 1533.

[0039] The modular extrusion device 2 is configured as several independent barrel units 150, each barrel unit 150 being detachably connected end-to-end via connecting flanges 152, thus achieving modular assembly of the barrel 15. When the heating device of a certain barrel unit 150 malfunctions or a certain barrel unit 150 becomes blocked, only the corresponding barrel unit 150 needs to be disassembled for repair or replacement, eliminating the need for overall disassembly and reassembly, shortening maintenance time and significantly improving equipment maintenance efficiency. Simultaneously, the number of barrel units can be flexibly increased or decreased according to different production process requirements, and the extrusion channel length can be adjusted to meet the needs of multi-variety production. The drive mechanism 12 drives the pusher screw 13 to rotate, achieving compression and mixing of plastic raw materials. The heating device 153 adopts the above structure, ensuring a tight fit between the heating wire 1532 and the outer casing 1531, resulting in high heat transfer efficiency and good heating uniformity. The asbestos layer 1533 and the metal outer casing 1534 form double thermal insulation protection, effectively reducing heat loss and improving thermal energy utilization.

[0040] In a preferred embodiment, the feeding mechanism 14 includes a feeding pipe and a connecting cylinder; one end of the connecting cylinder is detachably connected to the drive mechanism 12, and the other end of the connecting cylinder is detachably connected to the material cylinder unit 150 via a connecting flange 152. The connecting cylinder is provided with a clearance channel, and one end of the pusher screw 13 passes through the clearance channel and is driven by the drive end of the drive mechanism 12. The feeding pipe is connected to the connecting cylinder, and the feeding pipe communicates with the clearance channel. The feeding mechanism 14 adopts a separate structure of the feeding pipe and the connecting cylinder. The connecting cylinder is detachably connected to both the drive mechanism 12 and the material cylinder unit 150, which facilitates the independent disassembly and maintenance of the feeding mechanism 14. The clearance channel allows the pusher screw 13 to pass through the connecting cylinder and be directly driven by the drive mechanism 12. At the same time, the plastic raw material enters the clearance channel through the feeding pipe and finally enters the extrusion channel.

[0041] In a preferred embodiment, the bottom of the feeding frame 11 is provided with several horizontal moving components, each including a slide rail, pulleys, and pulley seats. The slide rail is located on the ground, and the pulley seats are located at the bottom of the feeding frame 11. The pulleys are rotatably mounted on the pulley seats and slidably mounted on the slide rails. The overall horizontal movement of the frame is achieved by the sliding of the pulleys on the slide rails. When repairing or replacing the barrel unit 150, the feeding frame 11 can be moved out as a whole, freeing up operating space. Moreover, the position of the feeding frame 11 can be adjusted according to actual needs, thereby changing the position of the barrel 15, facilitating the docking of the barrel 15 with subsequent equipment. The pulley and slide rail cooperation structure is simple and runs smoothly, facilitating the installation, positioning, and daily maintenance of the modular extrusion device 2.

[0042] Furthermore, the material cylinder unit 150 also includes a blower 155 and insulation cotton 156. The blower 155 includes a blower hood 1551 and a blower 1552. The blower hood 1551 covers the outer periphery of the heating device 153, and the blower 1552 is located outside the blower hood 1551, with the air inlet end of the blower 1552 communicating with the interior of the blower hood 1551. The insulation cotton 156 is fitted into the gap between the heating device 153 and the inner wall of the blower hood 1551.

[0043] The above structure enables the barrel unit 150 to achieve air-cooled cooling. When cooling is required, the blower 1552 blows air into the blower hood 1551, and the airflow flows along the outer periphery of the heating device 153, carrying away excess heat and achieving rapid temperature adjustment of the barrel 15. This meets the precise temperature control requirements of different process stages and prevents the plastic raw material from degrading due to local overheating. The insulation cotton 156 fills the gap between the heating device 153 and the inner wall of the blower hood 1551 on the outer periphery of the outer sleeve 1531, further reducing heat loss during the heating stage and reducing energy consumption. During the air-cooling stage, the insulation cotton 156 does not affect the airflow along the surface of the heating device 153, thus taking into account both insulation and cooling requirements.

[0044] Furthermore, the scraping and feeding device 3 includes a feeding turntable 31 and a plurality of cutting and feeding mechanisms 32; the cutting and feeding mechanisms 32 are arranged circumferentially below the feeding turntable 31; The material cutting and feeding mechanism 32 includes a base 321, two sets of scraper seats 322, a scraper blade 323, a limiting seat 324, and a feeding component 325; The base 321 is connected to the bottom surface of the feeding turntable 31. A feeding groove is recessed in the middle of the bottom surface of the base 321. The feeding assembly 325 is disposed in the feeding groove. Two sets of scraper seats 322 are respectively disposed on both sides of the feeding groove. The scraper seats 322 are connected to the base 321. The limiting seat 324 is disposed on the side of the two sets of scraper seats 322, and the two ends of the limiting seat 324 are respectively connected to the two sets of scraper seats 322. The scraper 323 is disposed between the limiting seat 324 and the scraper seat 322, and the scraper 323 is slidably connected to the limiting seat 324 and the scraper seat 322 respectively; The scraper 323 is connected to the limiting seat 324 via an elastic element 326. Under the elastic force of the elastic element 326, the scraper 323 tends to move vertically downward away from the base 321.

[0045] When the scraping and feeding equipment of the specific cap-making device is working, the feeding turntable 31 drives multiple cutting and feeding mechanisms 32 arranged along its circumference to rotate, so that each cutting and feeding mechanism 32 passes through the molten plastic outlet in sequence to complete the scraping and feeding process. When the cutting and feeding mechanism 32 rotates to below the outlet, the scraper blade 323, under the elastic force of the elastic element 326, tends to move vertically downward and away from the base 321. Since the scraper blade 323 is slidably connected to the limiting seat 324 and the scraper seat 322 respectively, the scraper blade 323 can slide freely in the vertical direction. One end of the elastic element 326 is connected to the limiting seat 324 and the other end is connected to the scraper blade 323, continuously providing a downward elastic thrust to the scraper blade 323, and keeping the scraper blade 323 with a vertical downward pressure, so that the lower edge of the scraper blade 323 always tends to fit against the molten plastic outlet. In one embodiment, the elastic element 326 includes a plurality of first springs. One end of each first spring is connected to the top surface of the scraper blade 323, and the other end of the return spring is connected to the top of the limiting seat 324. The elastic element 326 uses a plurality of first springs, which are arranged vertically. One end of each spring is fixedly connected to the top surface of the scraper blade 323, and the other end is fixedly connected to the top of the limiting seat 324. When the feeding turntable 31 rotates and the scraper blade 323 is subjected to an upward reaction force from the discharge port, the first springs are further compressed, and the scraper blade 323 retracts upward. When the reaction force disappears or decreases, the first springs restore their deformation and push the scraper blade 323 to reset. Using springs as elastic compensation elements results in a simple structure. The plurality of first springs are arranged in a dispersed manner to ensure that the scraper blade 323 is subjected to uniform force, avoids unilateral deviation, and ensures that the scraper blade 323 slides smoothly in the vertical direction. When the scraper blade 323 contacts the discharge port, if the discharge port is too low or the equipment vibration causes the distance between them to be too small, the discharge port will generate an upward reaction force on the scraper blade 323, overcoming the elastic force of the elastic element 326, causing the scraper blade 323 to retract upward along the sliding direction, thus avoiding rigid compression and excessive wear between the scraper blade 323 and the discharge port. When the discharge port is too high or the distance is too large, the elastic force of the elastic element 326 will push the scraper blade 323 downward, causing the lower edge of the scraper blade 323 to automatically fit with the discharge port, eliminating gaps and ensuring that the molten plastic is completely scraped. During the scraping process, a portion of the molten cap-making material scraped for cap making falls into the space formed by the two sets of scraper seats 322 and the scraper blade 323. When feeding is required, the feeding mechanism is activated. The feeding mechanism is a telescopic cylinder, and the telescopic rod extends to push the cap-making material downward, causing the material to fall into the mold, thus completing the feeding. Two sets of scraper seats 322 are respectively set on both sides of the feeding trough. The limiting seat 324 spans the two sets of scraper seats 322. The scraper seats 322 and the limiting seat 324 limit and guide the movement of the scraper blade 323, and provide installation support for the elastic element 326. At the same time, they limit the sliding stroke of the scraper blade 323 to prevent the scraper blade 323 from falling off.

[0046] This application connects the scraper blade 323 and the limiting seat 324 using an elastic element 326, ensuring that the scraper blade 323 always tends to move downwards under the elastic force, thus providing downward pressure. Combined with the sliding connection structure between the scraper blade 323, the limiting seat 324, and the scraper seat 322, the scraper blade 323 can adaptively slide in the vertical direction. When the distance between the scraper blade 323 and the molten plastic outlet changes due to equipment vibration, thermal deformation, or installation errors, the elastic element 326 automatically compensates for the distance change, ensuring that the scraper blade 323 always maintains a good fit with the outlet. This not only allows the lower edge of the scraper blade 323 to automatically fit with the outlet, but also eliminates... The gap between the scraper blade 323 and the discharge port ensures that the molten plastic is completely scraped and falls into the feeding assembly 325 through the feeding trough, improving the accuracy of the feeding amount and the consistency of the bottle cap forming quality. Moreover, when the distance between the scraper blade 323 and the discharge port is too small, the upward reaction force generated by the discharge port on the scraper blade 323 in this invention overcomes the elastic force of the elastic element 326, causing the scraper blade 323 to retract upward to avoid excessive wear caused by rigid extrusion. There is no need for operators to manually adjust by visual observation, which reduces the difficulty of debugging and labor costs, effectively reduces the wear rate of the scraper blade 323 and the discharge port, and reduces the frequency of equipment maintenance and replacement costs.

[0047] Furthermore, each end of the scraper blade 323 is provided with a sliding groove 3231 in the vertical direction, and a set of elastic elements 326 are respectively provided in the sliding groove 3231; The elastic element 326 includes a sliding block 3262, a second spring 3263, and two sets of locking bolts 3264; The sliding block 3262 is slidably disposed in the sliding groove 3231, and the sliding block 3262 is connected to the limiting seat 324. One end of the second spring 3263 is connected to the sliding block 3262, and the other end of the second spring 3263 is connected to the bottom surface of the sliding groove 3231. The sliding block 3262 is provided with a connecting hole 3265, and the two ends of the limiting seat 324 are respectively provided with mounting holes 3241. The locking bolt 3264 passes through the mounting holes 3241 and is threadedly connected to the connecting holes 3265 respectively. The mounting hole 3241 is configured as a vertical elongated hole, and the locking bolt 3264 is movably disposed within the elongated hole.

[0048] Specifically, in this embodiment, the scraper blade 323 has vertically oriented sliding grooves 3231 at both ends. Each set of sliding grooves 3231 contains a sliding block 3262 and a second spring 3263. The sliding block 3262 is slidably disposed within the sliding groove 3231 and is fixedly connected to the limiting seat 324, so that the sliding block 3262 is stationary relative to the limiting seat 324. The second spring 3263 is disposed within the sliding groove 3231, with one end connected to the sliding block 3262 and the other end connected to the bottom surface of the sliding groove 3231. When the scraper blade 323 moves downward under elastic thrust, the bottom surface of the sliding groove 3231 moves away from the sliding block 3262, and the second spring 3263 stretches or recovers its deformation, releasing elastic force to push the scraper blade 323 downward. When the scraper blade 323 moves upward under the reaction force of the discharge port, the bottom surface of the sliding groove 3231 moves upward and approaches the sliding block 3262, and the second spring 3263 is compressed, storing elastic potential energy to achieve avoidance; the cooperation between the sliding block 3262 and the sliding groove 3231 guides the vertical sliding of the scraper blade 323; the elastic element 326 is built into the sliding groove 3231, with a compact structure and the spring not exposed, avoiding the adhesion of molten plastic or foreign objects getting stuck in the spring gap; the sliding cooperation between the sliding block 3262 and the sliding groove 3231 provides precise vertical guidance, preventing the scraper blade 323 from swaying or twisting during movement; the elastic elements 326 are symmetrically arranged at both ends to ensure that the scraper blade 323 is subjected to balanced force on both sides and moves smoothly.

[0049] The limit seat 324 has mounting holes 3241 at both ends, and the sliding block 3262 has corresponding connecting holes 3265. During assembly, the locking bolt 3264 passes through the mounting holes 3241 on the limit seat 324 and is screwed into the connecting holes 3265 on the sliding block 3262. The limit seat 324 and the sliding block 3262 are locked and fixed by the threaded connection, so that the two form a rigid connection. During disassembly, the locking bolt 3264 can be unscrewed in the opposite direction to separate them, which is convenient for maintenance and replacement. The connection method of the locking bolt 3264 is convenient for assembly and disassembly, which is convenient for daily maintenance and replacement of the elastic element 326 and the sliding block 3262. The threaded connection has reliable locking force, ensuring the connection stability of the limit seat 324 and the sliding block 3262 under long-term vibration of the equipment.

[0050] The mounting hole 3241 on the limiting seat 324 is set as an elongated oval hole extending vertically. The locking bolt 3264 is movably inserted into the elongated oval hole, so that the locking bolt 3264 has an adjustable margin in the vertical direction. During assembly and debugging, the locking bolt 3264 is loosened, and the installation height position of the sliding block 3262 is adjusted along the vertical direction of the elongated oval hole, thereby changing the height of the scraper 323. After adjustment, the locking bolt 3264 is tightened to fix it. The elongated oval hole structure realizes the stepless adjustment of the height position of the scraper 323. The operator can flexibly adjust the distance between the scraper 323 and the discharge port according to different specifications of scraper 323 or according to the wear condition of scraper 323, so as to ensure the distance between scraper 323 and discharge port and avoid the situation of gaps due to excessive distance or excessive wear caused by rigid compression due to excessive distance.

[0051] In a preferred embodiment, a plurality of threaded holes are provided on one side of the scraper seat 322. The locking bolt 3264 passes through the mounting hole 3241 and the connecting hole 3265 and is threadedly connected to the threaded holes. After the locking bolt 3264 passes through the mounting hole 3241 of the limit seat 324 and the connecting hole 3265 of the sliding block 3262 in sequence, it continues to be screwed into the threaded hole of the scraper seat 322. The locking bolt 3264 simultaneously locks the limit seat 324, the sliding block 3262 and the scraper seat 322 in series, so that the three form an integral rigid connection structure. The limit seat 324, the sliding block 3262 and the scraper seat 322 are locked together as one, which enhances the overall structural rigidity of the cutting and feeding mechanism 32, effectively resists the vibration and impact during equipment operation, and improves the motion accuracy and service life.

[0052] In a preferred embodiment, the feeding turntable 31 is provided with an air inlet channel, one end of which is connected to an external air pump device; the base 321 and the scraper seat 322 are connected by an air jet channel, one end of which is connected to the air inlet channel, and the other end of which branches and connects to the inner side of the two sets of scraper seats 322 respectively, and the air jet channel is inclined upward towards the inner side of the scraper seat 322; specifically, the feeding turntable 31 is provided with an air inlet channel inside, one end of which is connected to an external air pump device through a pipeline. Next, the base 321 and scraper seat 322 are equipped with air jet channels. One end of the air jet channel is connected to the air inlet channel of the feeding turntable 31, and the other end branches into two branches, which are respectively connected to the inner sidewalls of the two sets of scraper seats 322. The air outlet direction of the air jet channel is towards the inner side of the scraper seat 322 and is inclined upward. When the external air pump is started, compressed air enters the air jet channel through the air inlet channel, and then is sprayed out from the inner sidewalls of the two sets of scraper seats 322 in an inclined upward direction through the branched branches, forming an airflow from both sides inward and from bottom to top. This inclined upward airflow follows... The inner wall of the scraper seat 322 and the side of the scraper blade 323 are swept upwards to remove residual material adhering to the inner wall of the scraper seat 322 and the surface of the scraper blade 323. Simultaneously, an upward air curtain barrier is formed inside the two sets of scraper seats 322, supporting the cap-making material temporarily stored in the space enclosed by the scraper seat 322 and the scraper blade 323, preventing the cap-making material from falling when the feeding cylinder is not activated. When the feeding cylinder is activated and the telescopic rod pushes the cap-making material downwards, the air pump can simultaneously stop supplying air or reduce the air volume, allowing the material to fall smoothly into the mold. The upward-sloping air outlet direction of the channel causes the airflow to sweep upward along the inner wall of the scraper seat 322, effectively removing residual molten plastic adhering to the inner wall and the surface of the scraper blade 323, reducing material adhesion and accumulation, lowering the cleaning frequency, and ensuring the accuracy of scraping quantity; at the same time, the upward-sloping airflow on both sides forms an air curtain support effect, preventing the cap-making raw material from overflowing or falling during the non-feeding stage, avoiding material waste and external mold contamination, and improving the accuracy of feeding timing control; the air passage is integrated inside the feeding turntable 31 and the base 321, without occupying external space, with a compact structure and good sealing performance.

[0053] In a preferred embodiment, the scraper blade 323 is provided with several sliding limiting grooves on both sides, and several balls are limited and arranged in the sliding limiting grooves. When the scraper blade 323 is installed between two sets of scraper seats 322 and limiting seats 324, the outer peripheral surface of the balls abuts against the sliding contact surfaces of the scraper seats 322 and limiting seats 324. When the scraper blade 323 slides vertically under the action of the elastic element 326, the balls roll in the sliding limiting grooves, converting the sliding friction between the scraper blade 323 and the scraper seats 322 and limiting seats 324 into rolling friction. This reduces the frictional resistance when the scraper blade 323 slides vertically, making the elastic compensation response of the elastic element 326 more sensitive, and making the scraper blade 323 slide up and down more smoothly. The reduced friction reduces the wear of the mating surfaces of the scraper blade 323 and the scraper seats 322, extending the service life of the parts. The sliding limiting grooves limit the balls, preventing them from falling off and ensuring the operational reliability of the rolling pair.

[0054] In a preferred embodiment, a plurality of semiconductor heating elements are provided on the side of the scraper blade 323, and the semiconductor heating elements are disposed between the scraper blade 323 and the limiting seat 324. Specifically, a plurality of semiconductor heating elements are provided on the side of the scraper blade 323 and installed in the area between the scraper blade 323 and the limiting seat 324. When the semiconductor heating elements are energized, they generate heat and conduct the heat to the scraper blade 323, keeping the scraper blade 323 within a certain temperature range. When the scraper blade 323 contacts the molten cap-making material for scraping, the heating temperature of the scraper blade 323 prevents the cap-making material from rapidly cooling and solidifying due to temperature difference when it contacts the surface of the scraper blade 323, maintaining the molten flow state of the material, ensuring the cleanliness of the scraper blade 323 surface and scraping efficiency. This avoids the accumulation of solidified material, which can lead to uneven scraping or deviation in the amount of material fed, thus improving the consistency of the bottle cap forming quality. The semiconductor heating elements are small in size, have high heating efficiency, and controllable temperature. They do not increase the external volume when installed in the space between the scraper blade 323 and the limiting seat 324, resulting in a high degree of structural integration.

[0055] Furthermore, the pressure mold turntable device 4 includes a rotary drive and two layers of pressing discs; the rotary drive is used to drive the two layers of pressing discs to rotate. The pressing mold 5 includes an upper mold base 5a and a lower mold base 5b; the upper mold base 5a and the lower mold base 5b are respectively arranged circumferentially on the two layers of the pressing plate; the lower mold base 5b is installed on the pressing plate by a pressing drive component, which is used to drive the lower mold base 5b to move closer to or away from the upper mold base 5a. The upper mold base 5a includes a fixed sleeve 51, a positioning sleeve 52, a cylindrical sleeve 53, a telescopic sleeve 54, a positioning sleeve 55, an upper mold core 56, an ejector mold core 57, and an inner cooling mold core 58. The bottom of the fixing sleeve 51 is fixedly connected to the cylindrical sleeve 53, the positioning sleeve 52 is detachably disposed on the top of the fixing sleeve 51, and the fixing sleeve 51 is provided with an installation cavity 511 inside. The telescopic sleeve 54 is slidably disposed inside the cylindrical sleeve 53, and the lower half of the telescopic sleeve 54 protrudes outside the cylindrical sleeve 53 for mold closing with the lower mold base 5b; the top of the cylindrical sleeve 53 and the telescopic sleeve 54 are connected by a first mold closing spring 59; when the upper mold base 5a and the lower mold base 5b are closed, the first mold closing spring 59 is compressed and provides downward pressure to the telescopic sleeve 54; The upper mold core 56 is slidably disposed inside the telescopic sleeve 54, and the lower end of the upper mold core 56 protrudes outside the telescopic sleeve 54 for mold closing with the lower mold core b2 of the lower mold base 5b; the positioning sleeve 55 is sleeved on the top of the inner side of the cylindrical sleeve 53, and the top of the upper mold core 56 is connected to the positioning sleeve 55 through the second mold closing spring 510; when the upper mold base 5a and the lower mold base 5b are closed, the second mold closing spring 510 is stretched by force, providing a downward pulling force to the upper mold core 56; The upper mold core 56 is provided with an inner cooling mold core 58 inside. The top end of the inner cooling mold core 58 is connected to the positioning sleeve 52. The upper mold core 56 and the inner cooling mold core 58 are slidably connected. The inner cooling mold core 58 is used to cool the bottom surface of the bottle cap after the mold is closed. The ejector core 57 is slidably disposed between the upper mold core 56 and the inner cooling mold core 58. The ejector core 57 is sleeved on the bottom outer periphery of the inner cooling mold core 58. The ejector core 57 is connected through an external pneumatic system. Under the control of the pneumatic system, the ejector core 57 ejects the bottle cap after the mold is closed. A sealed cooling water channel is provided between the upper mold core 56 and the ejector mold core 57. The cooling water channel is connected to the water inlet and water outlet of the upper mold core 56 respectively. The cooling water channel is used to cool the side wall of the bottle cap after the mold is closed.

[0056] The specific working principle is as follows: (a) Mold closing process: During mold closing, under the drive of the pressing drive, the lower mold base 5b moves upward, and the lower half of the telescopic sleeve 54 first contacts and positions itself with the lower mold base 5b. As the lower mold base 5b continues to move upward, the telescopic sleeve 54 slides upward relative to the cylindrical sleeve 53, and the first mold closing spring 59 is compressed, providing a downward elastic force to the telescopic sleeve 54, forming a first-level downward pressure on the telescopic sleeve 54 and the lower mold base 5b for mold closing. Meanwhile, the upper mold core 56 slides downward relative to the telescopic sleeve 54, and the lower end of the upper mold core 56 protrudes outside the telescopic sleeve 54 and closes with the lower mold core b2 of the lower mold base 5b. The top of the upper mold core 56 is connected to the positioning sleeve 55 through the second mold closing spring 510. During the mold closing process, the second mold closing spring 510 is stretched. Since the positioning sleeve 55 is fixed, the spring's retraction force provides a downward pulling force to the upper mold core 56, forming a secondary downward pressure on the upper mold core 56 and the lower mold core b2. This achieves graded mold closing from the outer telescopic sleeve 54 to the inner upper mold core 56, avoiding simultaneous impact of each layer structure on the lower mold and ensuring uniform force on each part of the bottle cap. During the mold closing process, the top of the inner cooling mold core 58 is fixedly connected to the positioning sleeve 52, and the upper mold core 56 slides relative to the inner cooling mold core 58, keeping the inner cooling mold core 58 stationary and positioning it above the bottom surface of the bottle cap after the mold closes with the upper mold core 56.

[0057] (II) Cooling Process: During the mold closing process, the cooling process is carried out simultaneously through two independent paths: 1. The first path is for cooling the bottom surface of the bottle cap: the cooling medium flows in through the cooling water channel inside the inner cooling mold core 58, and the inner cooling mold core 58 directly cools and shapes the bottom surface of the bottle cap after mold closing. The cooling medium is discharged after heat exchange is completed; 2. The second path is for cooling the side wall of the bottle cap: the cooling medium enters the sealed cooling water channel set between the upper mold core 56 and the ejector mold core 57 through the water inlet of the upper mold core 56, flows around the side wall of the bottle cap along the cooling water channel, and cools and shapes the side wall of the bottle cap after mold closing. The cooling medium after heat exchange is discharged through the drain port; the two cooling paths are physically isolated and do not interfere with each other. The flow rate and temperature of the cooling medium can be controlled independently to achieve precise temperature control of the bottom surface and side wall of the bottle cap.

[0058] (III) Demolding process: After cooling and shaping, the lower mold base 5b moves downward to open the mold under the drive of the pressing drive component. During the mold opening process, the first mold closing spring 59 and the second mold closing spring 510 are reset respectively, driving the telescopic sleeve 54 and the upper mold core 56 to retract until the lower mold base 5b disengages from the upper mold base 5a and the bottle cap is locked on the upper mold base 5a. Subsequently, when the upper mold base 5a moves to the bottle cap unloading positioning fixture, under the control of the pneumatic system, the ejector mold core 57 slides down along the outer periphery of the bottom of the inner cooling mold core 58, mechanically ejecting the closed bottle cap from the upper mold core 56, thus completing the demolding.

[0059] This invention provides a primary downward pressure to the telescopic sleeve 54 by compressing the first mold-closing spring 59 during mold closing, and provides a secondary downward pressure to the upper mold core 56 by stretching the second mold-closing spring 510 during mold closing. This achieves graded mold-closing pressure from the outer layer to the inner layer. During the mold-closing process, the telescopic sleeve 54 first contacts and positions itself with the lower mold base 5b, and then the upper mold core 56 precisely closes with the lower mold core b2. This avoids the problem of stress concentration during mold closing and uneven force on the bottle cap caused by simultaneous impact of each layer structure, and effectively improves the molding quality and dimensional consistency of the bottle cap. The bottom surface of the bottle cap is cooled by the inner cooling mold core 58, and the side wall is cooled by the sealed cooling water channel between the upper mold core 56 and the ejector mold core 57. The two physically isolated independent cooling paths control the flow rate and temperature of the cooling medium respectively, so as to achieve precise temperature control of different parts of the bottle cap. The partitioned cooling of the present invention can effectively improve the cooling uniformity, shorten the cooling and shaping time, and thus improve production efficiency. The mechanical ejection method, which uses a pneumatic system to control the ejector core 57 to slide along the outer periphery of the inner cooling core 58, provides stable and controllable ejection force that is unaffected by air pressure fluctuations. This effectively avoids demolding defects such as cap tilting, jamming, and deformation, thereby improving demolding success rate and product yield. The upper mold base 5a adopts a nested sliding structure consisting of a fixed sleeve 51, a cylindrical sleeve 53, a telescopic sleeve 54, an upper mold core 56, an inner cooling core 58, and an ejector core 57. Each component has a clear function and hierarchy. The positioning sleeve 52 is detachably mounted on top of the fixed sleeve 51, facilitating mold disassembly, maintenance, and component replacement, thus reducing maintenance costs.

[0060] Furthermore, the upper mold core 56 includes a water inlet sleeve 561 and a pressing sleeve 562, and the cooling water channel includes a water inlet channel 5611, a water outlet channel 5612, a water inlet flow channel 571, and a water outlet flow channel 572; The water inlet sleeve 561 and the press sleeve 562 are arranged vertically and sleeved on the outer periphery of the inner cooling mold core 58; The water inlet sleeve 561 is provided with a water inlet channel 5611 and a water outlet channel 5612 inside, and an annular cooling water channel 5621 is formed between the bottom of the pressing sleeve 562 and the bottom of the ejector core 57. The outer side wall of the ejector core 57 is recessed in the vertical direction and has the water inlet channel 571 and the water outlet channel 572. One end of the water inlet channel 571 is connected to the water inlet channel 5611 and the other end is connected to the annular cooling water channel 5621. One end of the water outlet channel 572 is connected to the water outlet channel 5612 and the other end is connected to the annular cooling water channel 5621. The top of the water inlet sleeve 561 is provided with a water inlet connector 563, a water outlet connector 564 and an air nozzle connector, and the water inlet connector 563, the water outlet connector 564 and the air nozzle connector are all located in the mounting cavity 511. The positioning sleeve 52 is provided with a water pipe channel 521 that communicates with the mounting cavity 511. One end of the water inlet connector 563 is connected to the water inlet channel 5611, and the other end is connected to an external water pipe that extends through the water pipe channel 521 to the mounting cavity 511. One end of the water outlet connector 564 is connected to the water outlet channel 5612, and the other end is connected to an external water pipe that extends through the water pipe channel 521 to the mounting cavity 511. The lower part of the water inlet sleeve 561 is provided with an ejection groove 5613, the upper part of the water inlet sleeve 561 is sleeved on the outer periphery of the inner cooling mold core 58, and the ejection mold core 57 is disposed in the ejection groove 5613 of the lower part of the water inlet sleeve 561. The water inlet sleeve 561 is provided with an airflow pipe. One end of the airflow pipe is connected to one end of the air nozzle connector, and the other end is connected to the top of the top outlet groove 5613. The positioning sleeve 52 is provided with an air pipe channel 522, and the other end of the air nozzle connector is connected to an external air pipe that extends through the air pipe channel 522 to the installation cavity 511.

[0061] In this embodiment, the flow path of the cooling medium for cooling the outer bottle cap sidewall is as follows: external cooling water → water inlet channel 5611 in the water inlet sleeve 561 → water inlet channel 571 on the outer wall of the ejector core 57 → annular cooling water channel 5621 between the bottom of the pressing sleeve 562 and the bottom of the ejector core 57 → water outlet channel 572 on the outer wall of the ejector core 57 → water outlet channel 5612 in the water inlet sleeve 561 → discharge; the cooling water is guided downward through the water inlet channel 5611 and enters the annular cooling water channel 5621 through the water inlet channel 571 on the outer wall of the ejector core 57. After heat exchange around the bottle cap sidewall in the annular cooling water channel 5621, it flows back to the water outlet channel 5612 through the water outlet channel 572 and is discharged. The annular cooling water channel 5621 is located between the bottom of the pressing sleeve 562 and the bottom of the ejector core 57, closely attached to the forming area of ​​the bottle cap sidewall, realizing the annular full-circumference cooling of the bottle cap sidewall; The cooling water channel is a closed loop, and the cooling water flows evenly along the circumference of the bottle cap sidewall, avoiding the problems of uneven flow and local cooling dead zones caused by traditional split-flow cooling, thus improving the uniformity of cooling of the bottle cap sidewall. The inlet channel 571 and the outlet channel 572 are respectively set in the vertical recess of the outer sidewall of the ejector core 57, forming an upward-in, surrounding, and downward-out cooling circulation path with the annular cooling water channel 5621. The channel layout is compact, effectively utilizing the limited space between the ejector core 57 and the pressing sleeve 562, and simplifying the internal structure of the mold.

[0062] Specifically, the water inlet and outlet connectors 564 are both concealed inside the mounting cavity 511. External pipelines are connected through the water pipe channel 521 of the positioning sleeve 52, avoiding the risk of pipeline interference and damage caused by exposed interfaces, and improving the overall structural compactness of the mold and the safety of the pipeline. The positioning sleeve 52 simultaneously serves as a cooling medium channel and a mold core positioning function, achieving multiple uses in one piece, reducing the number of mold parts, and simplifying the assembly structure. The water pipe channel 521 is located inside the positioning sleeve 52, and the pipeline route is perpendicular to the mold opening and closing direction. During mold closing and opening, the pipeline will not be pulled by the mold movement, ensuring the sealing reliability of the cooling system.

[0063] Specifically, the water inlet sleeve 561 is divided into upper and lower parts. The upper part is fitted around the outer periphery of the inner cooling mold core 58, and the lower part is provided with an ejection groove 5613. The ejection mold core 57 is installed in the ejection groove 5613. The top of the water inlet sleeve 561 is provided with an air nozzle connector, and an air flow pipe is provided inside. One end of the air flow pipe is connected to the air nozzle connector, and the other end is connected to the top of the ejection groove 5613. During demolding, the air nozzle connector is connected to an external pneumatic system. The air source of the pneumatic system inputs compressed air to the air nozzle connector. The air flow enters the top of the ejection groove 5613 through the air flow pipe, forming a downward air pressure thrust in the ejection groove 5613, which pushes the ejection mold core 57 to slide down along the ejection groove 5613, ejecting the molded bottle cap from the mold. The ejector core 57 is driven by air pressure. The ejection force is introduced into the top of the ejection groove 5613 through the airflow pipe. The effective area is large and the force is uniform. The airflow pipe is integrated inside the water inlet sleeve 561, and the air nozzle is set at the top of the water inlet sleeve 561. The ejection drive system and the cooling system are placed in the same component, which is compact and does not require an additional ejection drive device, thus reducing the complexity of the mold. The ejector core 57 is installed in the ejection groove 5613 at the bottom of the water inlet sleeve 561, ensuring that the ejection movement direction is consistent with the mold opening direction.

[0064] In a preferred embodiment, the inner cooling mold core 58 includes an inner cooling pipe and a water inlet pipe. The top of the inner cooling pipe passes through the mounting cavity 511 and connects to the positioning sleeve 52. The top of the positioning sleeve 52 is provided with a water inlet, and the interior of the positioning sleeve 52 is provided with a drainage channel. The water inlet pipe is disposed inside the inner cooling pipe, and a drainage gap is provided between the inner cooling pipe and the water inlet pipe, the drainage gap communicating with the drainage channel. One end of the water inlet pipe is connected to the water inlet of the positioning sleeve 52, and the other end extends to the bottom of the inner cooling pipe, with a drainage outlet at the bottom of the water inlet pipe communicating with the bottom of the drainage gap. A lateral channel is provided on the side of the positioning sleeve 52, the lateral channel communicating with the drainage channel. Specifically, the water flow path of the inner cooling mold core 58 is as follows: The cooling system consists of a water inlet at the top of the positioning sleeve 52, a water inlet pipe, the bottom of the inner cooling pipe, a drain outlet at the bottom of the water inlet pipe, a drain gap between the inner cooling pipe and the water inlet pipe (flowing from bottom to top), a drain channel inside the positioning sleeve 52, a lateral channel on the side of the positioning sleeve 52, and discharge. It employs a sleeve-type cooling structure with a center-downward water inlet and an upward-flowing water return through the gap. After the cooling water is discharged from the bottom of the water inlet pipe, it flows upward along the drain gap, forming a bottom-up coolant flow path. The cooling water gradually heats up as it rises, and the bottom contacts the lowest temperature cooling water. The area with the strongest cooling effect corresponds precisely to the part of the bottle cap bottom that needs the most cooling, improving cooling efficiency. The water inlet, drain channel, and lateral channel are all integrated into the positioning sleeve 52, and all cooling medium pipelines are built into the mold, eliminating the need for external pipeline connections. The structure is compact, simple, and reliably sealed.

[0065] In a preferred embodiment, the outer wall protrusion of the upper mold core 56 is provided with a first pressing limit block. When the upper mold base 5a and the lower mold base 5b are closed, the first pressing limit block can abut against the bottom of the positioning sleeve 55, thereby restricting the movement of the upper mold core 56. The outer wall protrusion of the telescopic sleeve 54 is provided with a second pressing limit block. When the upper mold base 5a and the lower mold base 5b are closed, the second pressing limit block can abut against the bottom of the cylindrical sleeve 53, thereby restricting the movement of the telescopic sleeve 54. Specifically, this embodiment provides double limiting: the outer wall protrusion of the upper mold core 56 is provided with a first pressing limit block. When the mold is closed, the upper mold core 56 slides upward under the push of the lower mold base 5b. When the first pressing limit block abuts against the bottom of the positioning sleeve 55, the upper mold core 56 stops moving upward, realizing precise limiting of the mold closing stroke of the upper mold core 56; and the outer wall protrusion of the telescopic sleeve 54 is provided with a second pressing limit block. During mold closing, the telescopic sleeve 54 slides upward under the push of the lower mold base 5b. When the second pressing limit block abuts against the bottom of the cylindrical sleeve 53, the telescopic sleeve 54 stops moving upward, thus achieving precise limiting of the mold closing stroke of the telescopic sleeve 54. Through the mechanical hard limiting of the limit block and the bottom of the sleeve, the mold closing position is precisely controlled, avoiding the problem of inconsistent mold closing position caused by spring fatigue or compression fluctuation, ensuring that the mold cavity size is consistent each time the mold is closed, and improving the repeatability accuracy of the bottle cap forming size. The spring provides flexible downward pressure, and the limit block provides rigid positioning. The combination of the two ensures both buffering and shock absorption during the mold closing process and precise locking of the final mold closing position.

[0066] Furthermore, the lower mold base 5b includes an outer sleeve b1, a lower mold core b2, an upper water sleeve b3, a water pipe fixing sleeve b4, an inner sleeve b5, and a cooling water inlet pipe b6; The lower mold core b2 is located at the top inside the outer sleeve b1, and the bottom surface of the lower mold core b2 is recessed with a plurality of cooling water channels b21. The upper water sleeve b3 is located at the bottom of the lower mold core b2. The bottom of the upper water sleeve b3 is provided with the water pipe fixing sleeve b4. The upper water sleeve b3 is provided with an upper water channel b31, which is connected to the cooling water channel b21 and the cooling water inlet pipe b6 respectively. The bottom of the water pipe fixing collar b4 is recessed and has several external drainage channels b41. The inner sleeve b5 has a drainage channel b51 running through it. The external drainage channels b41 are connected to the drainage channel b51. The cooling water inlet pipe b6 passes through the drainage channel b51 of the inner sleeve b5 and is connected and fixed to the water pipe fixing collar b4; An annular drainage channel b7 is formed between the outer sleeve b1, the lower mold core b2, the upper water sleeve b3, and the water pipe fixing sleeve b4. The annular drainage channel b7 is connected to the cooling water channel b21 and the outer drainage channel b41 respectively. A plurality of cooling water channels b21 are arranged in a circular arrangement along the central axis of the lower mold core b2, and a plurality of external drainage channels b41 are arranged in a circular arrangement along the central axis of the water pipe fixing collar b4. The lower mold core b2 is also provided with an annular cooling channel b8, which surrounds the mold cavity of the lower mold core b2 and is connected to the cooling water channel b21 and the annular drainage channel b7 respectively. The top edge of the outer sleeve b1 is provided with a limiting flange b11 that protrudes inward, and the limiting flange b11 is used to limit the lower mold core b2.

[0067] Specifically, the cooling water path of the lower mold base 5b is as follows: cooling water inlet pipe b6 → drainage channel b51 passing through the inner sleeve b5 → water pipe fixing ring b4 → water inlet channel b31 inside the upper water ring b3 → cooling water channel b21 on the bottom surface of the lower mold core b2 → annular drainage channel b7 formed between the outer sleeve b1 and the lower mold core b2, the upper water ring b3, and the water pipe fixing ring b4 → outer drainage channel b41 at the bottom of the water pipe fixing ring b4 → drainage channel b51 of the inner sleeve b5 → discharge; the cooling water is distributed to each cooling water channel b21 at the bottom of the lower mold core b2 through the water inlet channel b31, and after cooling the outer bottom surface of the bottle cap, it flows into the annular drainage channel b7 and is discharged through the outer drainage channel b41 and drainage channel b51. The cooling water inlet pipe b6 passes through the drainage channel b51 of the inner sleeve b5 and is connected and fixed to the water pipe fixing ring b4, so as to realize the coaxial arrangement of the water inlet pipe and the drainage pipe. The lower mold base 5b adopts a layered nested structure, with each layer of components having a clearly defined function: the lower mold core b2 is responsible for molding, the upper water sleeve b3 is responsible for water distribution, the water pipe fixing sleeve b4 is responsible for fixing and drainage, and the inner sleeve b5 is responsible for drainage guidance. The structure is clearly layered, making it easy to disassemble and maintain. The cooling water inlet pipe b6 passes through the drainage channel b51 of the inner sleeve b5 and connects to the water pipe fixing sleeve b4, realizing the coaxial nested arrangement of the inlet and drainage pipes. This effectively utilizes the internal space of the mold and avoids the waste of space and structural interference caused by separate arrangement of the inlet and drainage pipes. The annular drainage channel b7 is formed by the gap between the outer sleeve b1 and the internal components. No additional channel processing is required. The cooling water in the annular drainage channel b7 can provide auxiliary cooling for the side wall of the lower mold core b2, expanding the cooling coverage area.

[0068] Specifically, several cooling channels b21 on the bottom surface of the lower mold core b2 are arranged equidistantly in a circle along the central axis of the lower mold core b2, so that the cooling water is evenly distributed to all areas of the bottom of the lower mold core b2; the external drainage channel b41 at the bottom of the water pipe fixing collar b4 is also arranged circumferentially along the central axis, ensuring that the cooling water from each path flows out evenly; an annular cooling channel b8 is added inside the lower mold core b2, which is set around the mold cavity of the lower mold core b2 and is connected to the cooling channels b21 and the annular drainage channel b7 respectively. The cooling water enters the annular cooling channel b8 from the cooling channels b21, flows around the outer periphery of the mold cavity, and then enters the annular drainage channel b7 for discharge, realizing the annular cooling of the outer sidewall of the bottle cap; Both the cooling water channel b21 and the external drainage channel b41 are arranged circumferentially at equal intervals, ensuring uniform distribution of cooling water and avoiding insufficient or excessive cooling in certain areas, thus guaranteeing consistent cooling across all regions of the bottom outer surface of the bottle cap. The annular cooling channel b8 is set around the mold cavity, with cooling water forming a closed annular flow along the outer periphery of the mold cavity, achieving uniform cooling of the entire circumference of the outer sidewall of the bottle cap, effectively preventing shrinkage and deformation caused by uneven cooling of the bottle cap sidewall. The annular cooling channel b8 connects the cooling water channel b21 and the annular drainage channel b7, forming a complete circulation path of radial distribution, annular cooling, and radial convergence in the lower mold cooling system. The channel resistance is low, the flow distribution is uniform, and the overall efficiency of the cooling system is improved.

[0069] During assembly, the lower mold core b2 is inserted from the bottom of the outer sleeve b1. When it moves upward to the position of the limiting flange b11, the limiting flange b11 prevents the lower mold core b2 from moving further upward, thus achieving axial upper limit positioning of the lower mold core b2. The limiting flange b11 and the outer sleeve b1 are an integral structure, formed by bending inward from the top edge of the outer sleeve b1. No additional fasteners or connecting parts are required, resulting in a simple structure and low processing cost. During the mold closing process, when the lower mold base 5b closes upward, the lower mold core b2 will not come out due to the downward reaction force.

[0070] Other components and operations of the efficient cap-making device according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0071] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-efficiency cap-making device, characterized in that: It includes a feeding device, an extrusion device, a scraper feeding device, a pressure die turntable device, a pressing die, and a feeding device; The output end of the feeding device is connected to the input end of the extrusion device. The output end of the extrusion device is provided with the scraping and feeding device. The rotating disk of the pressing die turntable is provided with a plurality of pressing dies along the circumference. The scraping and feeding device scrapes material from the output end of the extrusion device and feeds it into the pressing die; The pressing mold is used to close the mold, press the bottle cap, and output the bottle cap to the feeding device; The extrusion device includes a pressurization mechanism, a pressure sensor, a cooling and temperature control mechanism, a discharge mechanism, and an electrical control box; The pressurizing mechanism is located at the output end of the feeding device; the pressure sensor is located between the feeding device and the pressurizing mechanism. The output end of the pressurizing mechanism is provided with a discharge pipe connected to the discharge mechanism; The cooling and temperature control mechanism is sleeved on the outer periphery of the discharge pipe, and the cooling and temperature control mechanism is used to cool and control the temperature of the discharge pipe; The discharge pipe has a flow sensor and a temperature sensor embedded in its wall, and both the flow sensor and the temperature sensor are located between the cooling and temperature control mechanism and the discharge mechanism. The pressure sensor, flow sensor, and temperature sensor are respectively connected to the electrical control box, and the electrical control box is respectively connected to the feeding device, the pressurizing mechanism, and the cooling and temperature control mechanism; The discharge mechanism includes a steering box, a feeding pipe, a feeding nozzle, and a steering column. The steering box is equipped with a feeding channel, a discharging channel and a unloading channel, and the feeding channel is parallel to the discharging pipe; The discharge channel is perpendicular to the feed channel and extends upward; The feeding pipe is located at the outlet of the discharge channel, and the feeding nozzle is located at the output end of the feeding pipe; The feeding nozzle has a guide surface inside, and the inner diameter of the guide surface near the feeding nozzle inlet is larger than the inner diameter near the feeding nozzle outlet. The unloading channel is parallel to the discharge channel and is vertically downward, and the unloading channel is connected to the feeding channel; The steering box is also provided with a steering groove, which is perpendicular to the feeding channel, the discharging channel and the unloading channel respectively. The steering groove is connected to the connection of the feeding channel, the discharging channel and the unloading channel. The steering column is rotatably arranged in the steering groove. One end of the column surface of the steering column is recessed and provided with a material passage groove. The extruded material can pass through the material passage groove from the feeding channel and enter the discharging channel or the unloading channel.

2. The high-efficiency cap-making equipment according to claim 1, characterized in that: The steering box is equipped with a rotation drive mechanism, the drive end of which is connected to the outer end of the steering column; the rotation drive mechanism includes a swing member and a steering cylinder, one end of the swing member is fixedly connected to the outer end of the steering column, and the extension end of the steering cylinder is rotatably connected to the other end of the swing member.

3. The high-efficiency cap-making equipment according to claim 1, characterized in that: The pressurization mechanism includes a pressurization motor, a pressurization reducer, a transmission component, and a melt pump; The output end of the feeding device is connected to the feed end of the melt pump, and the discharge end of the melt pump is connected to the discharge pipe. The output end of the booster motor is connected to the booster reducer, the output end of the booster reducer is connected to one end of the transmission component, and the other end of the transmission component is connected to the drive end of the melt pump. The cooling temperature control mechanism includes a cooling water heat exchanger, an upper clamp, and a lower clamp. The upper clamp and the lower clamp are respectively provided with an upper water channel and a lower water channel. The upper clamp is provided with a water inlet communicating with the upper water channel, and the lower clamp is provided with a water outlet communicating with the lower water channel. The inlet nozzle is connected to the cold water end of the cooling water heat exchanger, the outlet nozzle is connected to the return water end of the cooling water heat exchanger, and the cooling water heat exchanger is communicatively connected to the electrical control box. The upper clamp and the lower clamp are connected and fixed by bolts. After the upper clamp and the lower clamp are connected and fixed, the upper water channel and the lower water channel are connected to form a spiral water channel around the discharge pipe.

4. The high-efficiency cap-making equipment according to claim 1, characterized in that: The feeding device includes a feeding frame, a drive mechanism, a pusher screw, a feeding mechanism, and a material cylinder; The drive mechanism includes a feed motor and a reducer, which are respectively mounted on the feed frame. The output end of the feed motor is connected to the input end of the reducer. The feeding mechanism is located above and communicates with the material cylinder; the pushing screw is rotatably disposed inside the material cylinder; The barrel includes several barrel units; each barrel unit includes a barrel body, a connecting flange, and a heating device, with connecting flanges at both ends of the barrel body; the heating device is sleeved on the outer periphery of the barrel body; the several barrel units are detachably connected to each other via connecting flanges, and the first barrel unit closest to the drive mechanism is detachably connected to the drive mechanism via a connecting flange; an extrusion channel is provided in the middle of the barrel body, and the several extrusion channels cooperate to form an extrusion flow channel; The output end of the reducer is connected to one end of the pusher screw, and the other end of the pusher screw passes through the feeding mechanism and the extrusion channel in sequence; The heating device includes an outer tube, a heating wire, an asbestos layer, and a metal shell. The outer tube is fitted around the outer periphery of the cylinder, and the outer periphery of the outer tube is provided with a spiral groove. The heating wire is embedded in the spiral groove. The asbestos layer covers the outer periphery of the heating wire, and the metal shell covers the outer periphery of the asbestos layer.

5. The high-efficiency cap-making equipment according to claim 4, characterized in that: The material cylinder unit also includes a blower and insulation cotton. The blower includes a blower hood and a blower. The blower hood covers the outer periphery of the heating device, and the blower is located on the outside of the blower hood, with the air inlet of the blower communicating with the inside of the blower hood. The insulation cotton is fitted into the gap between the heating device and the inner wall of the blower hood.

6. The high-efficiency cap-making equipment according to claim 1, characterized in that: The scraping and feeding device includes a feeding turntable and multiple cutting and feeding mechanisms; the cutting and feeding mechanisms are arranged circumferentially below the feeding turntable; The material cutting and feeding mechanism includes a base, two sets of scraper seats, a scraper blade, a limiting seat, and a feeding component; The base is connected to the bottom surface of the feeding turntable. A feeding groove is recessed in the middle of the bottom surface of the base. The feeding component is disposed in the feeding groove. Two sets of scraper seats are respectively disposed on both sides of the feeding groove. The scraper seats are connected to the base. The limiting seat is disposed on the side of the two sets of scraper seats, and the two ends of the limiting seat are respectively connected to the two sets of scraper seats; The scraper is disposed between the limiting seat and the scraper seat, and the scraper is slidably connected to the limiting seat and the scraper seat respectively; The scraper blade is connected to the limiting seat via an elastic element. Under the elastic force of the elastic element, the scraper blade tends to move vertically downward away from the base.

7. The high-efficiency cap-making equipment according to claim 6, characterized in that: The scraper blade has sliding grooves at both ends in the vertical direction, and a set of elastic elements is provided in each sliding groove. The elastic element includes a sliding block, a second spring, and two sets of locking bolts; The sliding block is slidably disposed in the sliding groove and is connected to the limiting seat. One end of the second spring is connected to the sliding block, and the other end of the second spring is connected to the bottom surface of the sliding groove. The sliding block is provided with a connecting hole, and the two ends of the limiting seat are respectively provided with mounting holes. The locking bolt passes through the mounting hole and is threadedly connected to the connecting hole respectively. The mounting hole is configured as a vertical elongated hole, and the locking bolt is movably disposed within the elongated hole.

8. The high-efficiency cap-making equipment according to claim 6, characterized in that: The pressure mold turntable device includes a rotary drive component and two layers of pressing discs; the rotary drive component is used to drive the two layers of pressing discs to rotate. The pressing mold includes an upper mold base and a lower mold base; the upper mold base and the lower mold base are respectively arranged circumferentially on the two layers of the pressing plate; the lower mold base is installed on the pressing plate by a pressing drive component, which is used to drive the lower mold base to move closer to or away from the upper mold base. The upper mold base includes a fixed sleeve, a positioning sleeve, a cylindrical sleeve, a telescopic sleeve, a positioning sleeve, an upper mold core, an ejector mold core, and an inner cooling mold core; The bottom of the fixing sleeve is fixedly connected to the cylindrical sleeve, the positioning sleeve is detachably disposed on the top of the fixing sleeve, and the fixing sleeve has an installation cavity inside. The telescopic sleeve is slidably disposed inside the cylindrical sleeve, and the lower half of the telescopic sleeve protrudes outside the cylindrical sleeve for mold closing with the lower mold base; the top of the cylindrical sleeve and the telescopic sleeve are connected by a first mold closing spring; when the upper mold base and the lower mold base are closed, the first mold closing spring is compressed and provides downward pressure to the telescopic sleeve; The upper mold core is slidably disposed inside the telescopic sleeve, and the lower end of the upper mold core protrudes outside the telescopic sleeve for mold closing with the lower mold core of the lower mold base; the positioning sleeve is sleeved on the top of the inner side of the cylindrical sleeve, and the top of the upper mold core is connected to the positioning sleeve through a second mold closing spring; when the upper mold base and the lower mold base are closed, the second mold closing spring is stretched by force, providing a downward pulling force to the upper mold core; The upper mold core is provided with an inner cooling mold core inside. The top of the inner cooling mold core is connected to the positioning sleeve. The upper mold core and the inner cooling mold core are slidably connected. The inner cooling mold core is used to cool the bottom surface of the bottle cap after the mold is closed. The ejector core is slidably disposed between the upper mold core and the inner cooling mold core. The ejector core is sleeved on the bottom outer periphery of the inner cooling mold core. The ejector core is connected through an external pneumatic system. Under the control of the pneumatic system, the ejector core ejects the bottle cap after the mold is closed. A sealed cooling water channel is provided between the upper mold core and the ejector mold core. The cooling water channel is connected to the water inlet and water outlet of the upper mold core, respectively. The cooling water channel is used to cool the side wall of the bottle cap after the mold is closed.

9. The high-efficiency cap-making equipment according to claim 8, characterized in that: The upper mold core includes a water inlet sleeve and a pressing sleeve, and the cooling water channel includes a water inlet channel, a water outlet channel, a water inlet flow channel, and a water outlet flow channel; The water inlet sleeve and the pressing sleeve are arranged vertically and sleeved on the outer periphery of the inner cooling mold core; The water inlet sleeve is provided with a water inlet channel and a water outlet channel inside, and an annular cooling water channel is formed between the bottom of the pressing sleeve and the bottom of the ejector core; The outer wall of the ejector core is recessed in the vertical direction and has the water inlet channel and the water outlet channel. One end of the water inlet channel is connected to the water inlet channel and the other end is connected to the annular cooling water channel. One end of the water outlet channel is connected to the water outlet channel and the other end is connected to the annular cooling water channel. The top of the water inlet sleeve is provided with a water inlet connector, a water outlet connector, and an air nozzle connector, all of which are located within the installation cavity. The positioning sleeve is provided with a water pipe channel communicating with the installation cavity. One end of the water inlet connector is connected to the water inlet channel, and the other end is connected to an external water pipe that extends through the water pipe channel to the installation cavity. One end of the water outlet connector is connected to the water outlet channel, and the other end is connected to an external water pipe that extends through the water pipe channel to the installation cavity. The lower part of the water inlet sleeve is provided with an ejection groove, the upper part of the water inlet sleeve is sleeved on the outer periphery of the inner cooling mold core, and the ejection mold core is disposed in the ejection groove of the lower part of the water inlet sleeve. An airflow pipe is provided inside the water inlet sleeve. One end of the airflow pipe is connected to one end of the air nozzle connector, and the other end is connected to the top of the top outlet groove. The positioning sleeve is provided with an air tube channel, and the other end of the air nozzle connector is connected to an external air tube that extends through the air tube channel to the installation cavity.

10. The high-efficiency cap-making equipment according to claim 8, characterized in that: The lower mold base includes an outer sleeve, a lower mold core, an upper water sleeve, a water pipe fixing sleeve, an inner sleeve, and a cooling water inlet pipe; The lower mold core is located at the top inside the outer sleeve, and the bottom surface of the lower mold core is recessed and provided with several cooling water channels. The upper water sleeve is located at the bottom of the lower mold core, and the bottom of the upper water sleeve is provided with the water pipe fixing sleeve. The upper water sleeve has an upper water channel that is connected to the cooling water channel and the cooling water inlet pipe respectively. The bottom of the water pipe fixing collar is recessed and has several external drainage channels. The inner sleeve has a drainage channel running through it. The external drainage channels are connected to the drainage channel. The cooling water inlet pipe passes through the drainage channel of the inner sleeve and is connected and fixed to the water pipe fixing collar; An annular drainage channel is formed between the outer sleeve, the lower mold core, the upper water sleeve, and the water pipe fixing sleeve. The annular drainage channel is connected to the cooling water channel and the outer drainage channel, respectively. A plurality of cooling water channels are arranged in a circular pattern along the central axis of the lower mold core, and a plurality of external drainage channels are arranged in a circular pattern along the central axis of the water pipe fixing collar. The lower mold core is also provided with an annular cooling channel inside, the annular cooling channel is arranged around the mold cavity of the lower mold core, and the annular cooling channel is connected to the cooling water channel and the annular drainage channel respectively; The top edge of the outer sleeve protrudes inward and is provided with a limiting flange, which is used to limit the lower mold core.

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