Lipstick production filling and forming equipment

Abstract

The present application relates to cosmetic processing equipment technical field, specifically is a kind of lipstick production filling forming equipment, the present application includes base, shear phase change feed unit, volumetric metering filling unit and intermittent feeding conveying unit are provided on the base;The shear phase change feed unit includes fixed on the base barrel, first sealing bushing and heating cone cylinder.The present application is cooperated by inverting conical cutting cylinder and cutting blade, and the bottom surface of solid raw material block is continuously planed into micro-thin slice, so that the specific surface area of raw material heated is amplified by order of magnitude;After entering raw material melting bin, the slice raw material is subjected to mechanical blocking and guiding by helical protrusion strip on the inner wall of heat-conducting cone cylinder, forcing the moving slice material to produce violent tumbling and interlaced stirring motion on the heated wall surface, greatly increasing the heat exchange efficiency between the material and the heating wall surface, so that the heat generated by electromagnetic heater can be quickly and uniformly conducted to the inside of each piece of material.

Description

Technical Field

[0001] This invention relates to the field of cosmetic processing equipment technology, specifically a lipstick production, filling, and molding equipment. Background Technology

[0002] With the rapid development of the intelligent manufacturing equipment industry, the fully automated and high-precision production in the cosmetics processing field has ushered in a comprehensive technological upgrade. In the lipstick manufacturing process, the melting of raw materials and precision filling are key steps that determine the quality of the finished product. Lipstick base materials are typically composed of a variety of waxes, oils, and pigments, with a small amount of polymeric plastic additives added to improve the hardness, fracture resistance, and staying power of the lipstick. While the plastic component accounts for a very small percentage of the overall formula, its role is irreplaceable. It is a typical heat-sensitive material, requiring extremely stringent process control over heating temperature and time. To enable subsequent intermittent volumetric filling, the solid lipstick raw materials must be transformed into a fluid state with good flowability through heating before filling.

[0003] Existing lipstick melting equipment typically uses a large-capacity barrel for overall external heating, or a single-layer electric heating jacket around the barrel, attempting to melt the solid raw material gradually from the outside in through heat conduction. In actual production, the equipment mostly relies on a preset constant power for continuous heating. Once the entire barrel or block of raw material has been completely converted into a fluid, the conveying pipe below is opened to send it to the filling mechanism.

[0004] However, due to the poor thermal conductivity of lipstick base materials, this "outside-in" overall heating method suffers from a severe heat conduction wall thickness effect. During the heating process, the outer layer of raw material near the barrel wall often melts completely, even reaching a high temperature, while the raw material inside the core remains in an unmelted solid state. To completely melt the inner solid core and achieve the required filling flow, the equipment must maintain continuous heating for an extended period. This prolonged, overall high-temperature baking easily leads to the outer layer of fluid paste, which melts first, scorching, clumping, spoilage, or pigment degradation due to prolonged localized heating. Furthermore, small amounts of plastic additives may undergo irreversible molecular chain breakage due to overheating, completely losing their original function and severely affecting the color, texture, and yield of the finished lipstick. Summary of the Invention

[0005] The purpose of this invention is to provide a lipstick production filling and molding equipment to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions: A lipstick production filling and molding equipment, preferably, includes a base, on which a shear phase change feeding unit, a volume metering filling unit and an intermittent feeding and conveying unit are arranged; The shear phase change feeding unit includes a material cylinder fixed on the base, a first sealing bushing, and a heating cone. The rotating end of the first sealing bushing is fixedly connected to an inverted conical cutting cylinder. An upright guide cone is provided inside the inverted conical cutting cylinder, and a heat-conducting cone is provided outside the inverted conical cutting cylinder. A raw material melting chamber is formed between the heat-conducting cone and the inverted conical cutting cylinder. The heating cone is sleeved on the outer periphery of the heat-conducting cone, and an electromagnetic heater is provided on its inner wall. The volumetric metering filling unit includes a T-shaped tee body fixed on the base. The T-shaped tee body has a vertical flow channel and a horizontal flow channel. A filling head is fixedly connected to the bottom of the vertical flow channel, and a first plunger rod is slidably arranged in the horizontal flow channel. The intermittent feeding and conveying unit includes an annular protective cover fixed on the base. The annular protective cover has a feeding notch. A feeding shaft that passes through the annular protective cover is rotatably connected to the base. A mold bearing plate and a cross-shaped transmission flange are fixedly connected to the feeding shaft.

[0007] Preferably, the side wall of the inverted conical cutting cylinder is provided with multiple through holes communicating with the raw material melting chamber and is equipped with multiple cutting blades; The inner wall of the heat-conducting cone is uniformly provided with multiple spiral protrusions.

[0008] Preferably, the bottom of the heat-conducting cone is provided with a porous filter ring, and the output end of the porous filter ring is connected to a redundant cylinder through a second sealing bushing. The redundant cylinder is connected to the top of the vertical flow channel, and a liquid level monitoring sensor is built into the redundant cylinder.

[0009] Preferably, the upper end of the vertical flow channel is provided with an upper shut-off valve and the lower end is provided with a lower shut-off valve.

[0010] Preferably, a driven gear ring is fixedly sleeved on the outer periphery of the rotating end of the first sealing bushing, a cutting drive motor is fixedly connected to the top of the base, and a drive gear that meshes with the driven gear ring is fixedly connected to the output end of the cutting drive motor.

[0011] Preferably, a second plunger rod is slidably disposed inside the barrel, a plurality of claw pins are evenly disposed at the bottom of the second plunger rod, and a pressure sensor is disposed at the bottom of the second plunger rod.

[0012] Preferably, a lifting slide rail is fixedly connected to the top of the base, a lifting slider is slidably connected on the lifting slide rail, an electric push rod is fixedly connected to one end of the lifting slider, and the output end of the electric push rod is fixedly connected to the top end of the second plunger rod. A lifting screw is rotatably connected inside the lifting slide rail. The lifting screw and the lifting slider are threadedly connected. A first bevel gear is fixedly connected to the bottom end of the lifting screw. A second bevel gear that meshes with the first bevel gear is rotatably connected to one side of the lifting slide rail. An adjustment handle is fixedly connected to the shaft end of the second bevel gear.

[0013] Preferably, a main shaft is rotatably connected to the top of the base, a worm gear is fixedly sleeved on the main shaft, a servo drive motor is fixedly connected to the top of the base, a worm gear meshing with the worm gear is fixedly connected to the output end of the servo drive motor, and an L-shaped transmission rod is fixedly connected to the top of the main shaft. The end of the first plunger rod is fixedly connected to a sliding groove connecting plate. A through rectangular groove is provided on the sliding groove connecting plate along its length direction. The free end of the L-shaped transmission rod is slidably embedded in the rectangular groove.

[0014] Preferably, the edge of the mold support plate is provided with multiple U-shaped positioning notches, and the side of the cross-shaped transmission flange is provided with multiple indexing engagement grooves; The base is rotatably connected to an intermediate wheel at its top. One end of the intermediate wheel is provided with a single-tooth drive pin that meshes with the indexing groove. A first synchronous wheel is fixedly sleeved on the shaft end of the intermediate wheel, and a second synchronous wheel is fixedly sleeved on the main shaft. The first synchronous wheel and the second synchronous wheel are connected by a synchronous belt drive. The top of the base is also provided with a feeding conveyor belt that connects to the feeding notch, and a feeding cylinder that is fixedly connected to the base and located above the annular protective cover.

[0015] Preferably, the device also includes a central controller fixedly connected to the base, the central controller being electrically connected to the electromagnetic heater, and all power drive components and sensors in the entire device being electrically connected to the central controller.

[0016] The beneficial effects of this invention are: 1. This invention, through the cooperation of an inverted conical cutting cylinder and cutting blades, continuously planes the bottom surface of a solid raw material block into fine flakes, thereby increasing the specific surface area of ​​the heated raw material by orders of magnitude. After the flake raw material enters the raw material melting chamber, it is mechanically blocked and guided by the spiral protrusions on the inner wall of the heat-conducting cone, forcing the moving flake material to generate violent tumbling and intertwining stirring motion on the heated wall surface. This greatly increases the heat exchange efficiency between the material and the heated wall surface, allowing the heat generated by the electromagnetic heater to be quickly and evenly conducted to the interior of each flake material, achieving rapid melting in a thin film state. This effectively reduces the problems of lipstick paste burning and clumping or high-temperature degradation of pigments due to uneven local heating and excessive residence time.

[0017] 2. In the continuous filling process, if the liquid level in the redundant cylinder falls below the preset value due to changes in the upstream melting rate, the central controller, based on the data returned by the liquid level monitoring sensor, synchronously increases the heating power, cutting speed, and push rod advance speed. This increases the amount of material being cut and melted in a short time, causing the liquid level to rise quickly and return to the preset value. This multi-variable adaptive adjustment avoids the problem of material shortage caused by fluctuations in material supply or intermittent downstream suction, ensuring that the horizontal flow channel receives an equal volume of sufficient material flow in each suction stroke, thus guaranteeing the consistency of continuous filling volume.

[0018] 3. This invention utilizes the periodic engagement and disengagement of a single-tooth drive pin at the top of the intermediate wheel with the side of the cross-shaped transmission flange. This creates a strict sequence in the mechanical structure between the reciprocating motion of the first plunger rod and the stepping rotation of the mold carrier plate: when the first plunger rod is in the suction stroke, the mold carrier plate rotates precisely, sending the empty mold directly below the filling head; and when the first plunger rod enters the discharge filling stroke, the single-tooth drive pin disengages from the transmission surface, and the cross-shaped transmission flange enters the arc locking section, forcing the mold carrier plate to remain completely stationary in space, awaiting high-pressure injection. This effectively reduces signal delays, sensor errors, or electrical jitter that are prone to occur when traditional equipment uses independent electrical control, ensuring that the mold below is in an absolutely aligned and stationary state each time the filling head injects material, significantly improving the yield rate of fully automatic continuous production. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the material cylinder in this invention; Figure 3 This is a cross-sectional view of the internal structure of the barrel in this invention; Figure 4 This is a schematic diagram of the overall structure of the inverted conical cutting cylinder and the heat-conducting conical cylinder in this invention; Figure 5 This is a schematic diagram of the overall structure of the intermittent feeding and conveying unit in this invention; Figure 6 This is a schematic diagram of the internal structure of the feeding cylinder in this invention; Figure 7 This is a schematic diagram of the overall structure of the mold support plate in this invention; Figure 8This is a schematic diagram of the internal structure of the lifting slide rail in this invention.

[0020] The reference numerals in the figure are as follows: 1. Base; 2. Material cylinder; 3. First sealing sleeve; 4. Inverted conical cutting cylinder; 5. Upright guide cone; 6. Heat-conducting cone; 7. Spiral raised strip; 8. Porous filter ring; 9. Through hole; 10. Cutting blade; 11. Heating cone; 12. Electromagnetic heater; 13. Second sealing sleeve; 14. Redundant cylinder; 15. T-shaped tee body; 16. Vertical flow channel; 17. Upper shut-off valve; 18. Lower shut-off valve; 19. Horizontal flow channel; 20. First plunger rod; 21. Filling head; 22. Second plunger rod; 23. Claw pin; 24. Lifting slide rail; 25. Lifting slider; 26. Electric actuator; 27. Lifting screw; 28. First bevel gear 29. Second bevel gear; 30. Adjusting handle; 31. Driven gear ring; 32. Cutting drive motor; 33. Driving gear; 34. Main shaft; 35. Worm gear; 36. Servo drive motor; 37. Worm; 38. L-shaped transmission rod; 39. Slide connecting plate; 40. Rectangular slide; 41. Annular protective cover; 42. Discharge notch; 43. Feeding shaft; 44. Mold bearing plate; 45. Cross-shaped transmission flange; 46. U-shaped positioning notch; 47. Indexing meshing groove; 48. Intermediate wheel; 49. Single tooth drive pin; 50. First synchronous pulley; 51. Second synchronous pulley; 52. Synchronous belt; 53. Discharge conveyor belt; 54. Feeding cylinder; 55. Central controller. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] A lipstick production filling and molding equipment belongs to the category of material phase change and precision metering equipment in the intelligent manufacturing equipment industry and cosmetic precision processing. It is a special processing equipment for efficient and uniform phase change and high consistency constant volume filling of high heat-sensitive composite base materials with non-pulsating flow channels. It is mainly used in the fields of fully automatic cosmetic manufacturing and precision fluid metering, especially for the fully automatic, safe and stable operation of solid raw material blocks integrating multiple high heat-sensitive pigments and wax components under the conditions of preventing local overheating and coking and ensuring the consistency of continuous filling volume.

[0023] This solution integrates a fully mechanical hard linkage and dynamic flow balance control design throughout the entire process. It combines an axial stress adaptive in-situ puncture locking mechanism, a spiral flow-blocking and tumbling film rapid melting mechanism, a crank slide sinusoidal reciprocating non-powered pulsating flow interruption mechanism, and a single-tooth drive pin and cross-shaped transmission flange time-space phase hard interlocking mechanism to work together. This solution solves the core technical problems of traditional lipstick equipment, such as slow heat transfer from the overall periphery heating leading to "external melting and internal rigidity" and long-term baking deterioration, mismatch between the upstream continuous melting speed and the downstream intermittent filling demand leading to pipeline interruption and filling material shortage, splashing and stringing at the filling end caused by the flow inertia of high-viscosity paste, and filling misalignment and overflow waste caused by signal time lag in independent electrical control network. By employing an innovative control logic that combines on-demand cutting, melting, and use of raw materials with mechanical-level hard-interlock binding, this equipment achieves highly stable pressure boundary feeding of solid base materials without idling; efficient and uniform phase change melting of micro-flake materials through vigorous tumbling and interweaving on heated wall surfaces; smooth and impact-free flow channel switching under zero-flow-rate conditions at reversing dead points and singular positions; and absolute spatiotemporal correspondence between the metering suction and discharge process and the mold indexing static deadlock state. This meets the core requirements of the intelligent manufacturing equipment industry for flexible and precise processing of heat-sensitive, high-viscosity pastes; precise control of filling volume at micro-levels; long-cycle operation without manual intervention; and continuous operation with zero scrap rate throughout the entire process. Simultaneously, relying on its unique precise electromagnetic temperature control system and in-situ solid-liquid separation structure, this equipment can achieve non-destructive separation of plastic components from the base paste in substandard raw materials without the need for any additional hardware devices. This provides a feasible technical path for the recycling of plastic waste and the resource-based treatment of solid waste in the lipstick production process.

[0024] like Figures 1-8 As shown, it includes a base 1, on which a shear phase change feeding unit, a volumetric metering filling unit and an intermittent feeding and conveying unit are provided; The shear phase change feeding unit includes a material cylinder 2, a first sealing bushing 3, and a heating cone 11 fixed on a base 1. The rotating end of the first sealing bushing 3 is fixedly connected to an inverted conical cutting cylinder 4. An upright guide cone 5 is provided inside the inverted conical cutting cylinder 4, and a heat-conducting cone 6 is provided outside it. A raw material melting chamber is formed between the heat-conducting cone 6 and the inverted conical cutting cylinder 4. The heating cone 11 is sleeved on the outer periphery of the heat-conducting cone 6, and an electromagnetic heater 12 is provided on its inner wall. The volumetric metering filling unit includes a T-shaped tee body 15 fixed on the base 1. The T-shaped tee body 15 has a vertical flow channel 16 and a horizontal flow channel 19. A filling head 21 is fixedly connected to the bottom of the vertical flow channel 16, and a first plunger rod 20 is slidably arranged in the horizontal flow channel 19. The intermittent feeding conveying unit includes an annular protective cover 41 fixed on the base 1. The annular protective cover 41 has a feeding notch 42. A feeding shaft 43 passing through the annular protective cover 41 is rotatably connected to the base 1. A mold bearing plate 44 and a cross-shaped transmission flange 45 are fixedly connected to the feeding shaft 43. The inverted conical cutting cylinder 4 has multiple through holes 9 that connect to the raw material melting chamber and multiple cutting blades 10 on its side wall. The inner wall of the heat-conducting cone 6 is uniformly provided with multiple spiral protrusions 7; Furthermore, a porous filter ring 8 is provided at the bottom of the heat-conducting cone 6. The output end of the porous filter ring 8 is connected to a redundant cylinder 14 through a second sealing bushing 13. The redundant cylinder 14 is connected to the top of the vertical flow channel 16, and a liquid level monitoring sensor is built into the redundant cylinder 14. Furthermore, an upper shut-off valve 17 is provided at the upper end of the vertical flow channel 16, and a lower shut-off valve 18 is provided at the lower end. Furthermore, a driven gear ring 31 is fixedly sleeved on the outer periphery of the rotating end of the first sealing bushing 3, and a cutting drive motor 32 is fixedly connected to the top of the base 1. The output end of the cutting drive motor 32 is fixedly connected to a drive gear 33 that meshes with the driven gear ring 31. Furthermore, a second plunger rod 22 is slidably arranged inside the barrel 2, and a plurality of claw pins 23 are evenly arranged at the bottom of the second plunger rod 22, and a pressure sensor is arranged at the bottom of the second plunger rod 22; Furthermore, a lifting slide rail 24 is fixedly connected to the top of the base 1, a lifting slider 25 is slidably connected to the lifting slide rail 24, an electric push rod 26 is fixedly connected to one end of the lifting slider 25, and the output end of the electric push rod 26 is fixedly connected to the top end of the second plunger rod 22. A lifting screw 27 is rotatably connected inside the lifting slide rail 24. The lifting screw 27 is threadedly driven to the lifting slider 25. A first bevel gear 28 is fixedly connected to the bottom end of the lifting screw 27. A second bevel gear 29 that meshes with the first bevel gear 28 is rotatably connected to one side of the lifting slide rail 24. An adjusting handle 30 is fixedly connected to the shaft end of the second bevel gear 29. Furthermore, a main shaft 34 is rotatably connected to the top of the base 1, a worm gear 35 is fixedly sleeved on the main shaft 34, a servo drive motor 36 is fixedly connected to the top of the base 1, a worm 37 that meshes with the worm gear 35 is fixedly connected to the output end of the servo drive motor 36, and an L-shaped transmission rod 38 is fixedly connected to the top of the main shaft 34. The end of the first plunger rod 20 is fixedly connected to a sliding groove connecting plate 39. A through rectangular groove 40 is provided on the sliding groove connecting plate 39 along its length direction. The free end of the L-shaped transmission rod 38 is slidably embedded in the rectangular groove 40. Furthermore, the edge of the mold support plate 44 is provided with multiple U-shaped positioning notches 46, and the side of the cross-shaped transmission flange 45 is provided with multiple indexing engagement grooves 47. The top of the base 1 is rotatably connected to an intermediate wheel 48. One end of the intermediate wheel 48 is provided with a single-tooth drive pin 49 that meshes with the indexing groove 47. The shaft end of the intermediate wheel 48 is fixedly sleeved with a first synchronous wheel 50. The main shaft 34 is fixedly sleeved with a second synchronous wheel 51. The first synchronous wheel 50 and the second synchronous wheel 51 are connected by a synchronous belt 52. The top of the base 1 is also provided with a feeding conveyor belt 53 that connects to the feeding notch 42, and a feeding cylinder 54 that is fixedly connected to the base 1 and located above the annular protective cover 41. The feeding cylinder 54 is a vertically arranged cylindrical structure, which stores empty lipstick molds inside, and is used to feed empty molds one by one into the U-shaped positioning notch 46 of the mold carrier plate 44. Furthermore, it also includes a central controller 55 fixedly connected to the base 1. The central controller 55 is electrically connected to the electromagnetic heater 12, and all power drive components and sensors in the entire device are electrically connected to the central controller 55.

[0025] When in use, first, place the whole solid lipstick raw material inside the material cylinder 2. At this time, the electric push rod 26 is in the retracted state. Then, by manually rotating the adjustment handle 30, the second bevel gear 29 is driven to mesh vertically with the first bevel gear 28, which forces the lifting screw 27 to rotate in place inside the lifting slide rail 24, thereby driving the lifting slider 25 and the electric push rod 26 suspended at its front end to complete the alignment with the material cylinder 2 in the vertical direction. Subsequently, before formal filling, the system guides the equipment into the trial operation and calibration phase: the central controller 55 drives the electric push rod 26 to power on and execute a downward linear output stroke, causing the sharp claw pins 23 located on the bottom surface of the second plunger rod 22 to deeply engage and penetrate into the top surface of the solid raw material block, achieving initial fixation of the solid raw material block in the axial and circumferential directions. During this advancement process, the pressure sensor embedded inside the second plunger rod 22 begins to sense and transmit the real-time contact pressure between the bottom surface of the solid raw material and the cutting cylinder below to the central controller 55 in real time. The central controller 55 finely adjusts the axial output thrust of the electric push rod 26 based on this feedback data, effectively preventing the solid raw material block from slipping due to insufficient contact force or mechanically jamming due to excessive force. Next, the cutting drive motor 32 operates, driving the inverted conical cutting cylinder 4 to rotate rigidly around its central axis through the meshing of the drive gear 33 and the large-diameter driven gear ring 31. The thin sheet material shavings cut by the cutting blade 10 is subjected to phase change heat flow conducted by the high-frequency excitation of the electromagnetic heater 12 inside the annular material melting chamber, instantly and completely melting into a continuous liquid flow. After being mechanically filtered by the microporous network of the annular porous filter ring 8, the liquid flow is smoothly introduced into the vertically erected redundant cylinder 14 through the second sealing bushing 13 for trial operation and accumulation until the fluid lipstick material inside the redundant cylinder 14 reaches the initial preset value under the sensing of the liquid level monitoring sensor. Then, when the equipment officially transitions from trial operation to continuous filling mode, the lipstick liquid accumulated in the redundant cylinder 14 is injected vertically downwards into the vertical flow channel 16 of the T-shaped tee body 15. The servo drive motor 36 rotates at a constant speed, driving the main shaft 34 to rotate at a constant speed through the self-locking transmission pair of the worm gear 37 and worm wheel 35. The L-shaped transmission rod 38, eccentrically connected to the main shaft 34, smoothly moves within the rectangular slide groove 40 of the slide groove connecting plate 39 using follower rollers, converting motion into rigid driving force, pulling the first plunger rod 20 to reciprocate within the horizontal flow channel 19. Under the alternating opening and closing timing control of the upper shut-off valve 17 and the lower shut-off valve 18 within the vertical flow channel 16, when the first plunger rod 20 retracts, it accurately draws the lipstick liquid from the redundant cylinder 14 into the horizontal flow channel 19; when it reverses direction, it pushes the quantitative liquid under high pressure into the lower section of the vertical flow channel 16 and injects it into the mold below through the filling head 21. It is worth noting that during continuous filling, due to the dynamic fluctuations in downstream intermittent material intake and upstream melting flow rate, once the melting amount in the heat-conducting cone 6 changes, causing the liquid level of the fluid lipstick raw material in the redundant cylinder 14 to momentarily fall below the preset value, the central controller 55 immediately activates the coordination and correction mechanism based on the material shortage trend data returned by the liquid level monitoring sensor. That is, the central controller 55 outputs multiple control commands: on the one hand, it increases the excitation output power of the electromagnetic heater 12 to improve the transient heat flow conduction speed; on the other hand, it increases the input current frequency of the cutting drive motor 32 to increase the planing frequency of the cutting blade 10, and simultaneously increases the downward pushing speed of the electric push rod 26 and implements dynamic clamping limit by the pressure sensor. In this way, the material cutting and melting amount is increased in real time, forcibly driving the fluid lipstick raw material in the redundant cylinder 14 to quickly rise and stabilize at the preset value level, thereby reducing the filling material shortage problem caused by upstream material supply fluctuations or downstream material intake, and improving the consistency of volumetric filling amount. Next, as the main shaft 34 rotates, power is rigidly transmitted to the intermediate pulley 48 via the second synchronous pulley 51, the synchronous belt 52, and the first synchronous pulley 50. The single-tooth drive pin 49 at the top of the intermediate pulley 48 periodically rotates and engages in the indexing groove 47 of the cross-shaped transmission flange 45, forcibly driving the feeding shaft 43 and the mold support plate 44 to produce precise intermittent indexing oscillations. When the first plunger rod 20 is within half a cycle of the suction stroke, the mold support plate 44 rotates stepwise, precisely delivering the empty mold automatically dropped from the feeding cylinder 54 to directly below the filling head 21. When the first plunger rod 20 rotates into the half-cycle of the discharge and filling stroke, the single-tooth drive pin 49 just disengages from the indexing engagement groove 47, and the cross-shaped transmission flange 45 enters the arc locking section, forcing the mold support plate 44 to remain stationary in space to await high-pressure injection. After filling and forming, the mold rotates with the platen to the discharge notch 42, disengages from the indexing plate, and smoothly slides onto the discharge conveyor belt 53 for subsequent conveying. It is worth noting that when an error in the plastic ratio or batch contamination occurs in the lipstick raw material, rendering the entire batch unusable for finished product production, the following steps can be used to achieve the non-destructive separation and recycling of different components: First, the central controller 55 stops all the operation of the cutting drive motor 32 and the servo drive motor 36, and at the same time sets the first stage constant temperature heating temperature of the electromagnetic heater 12. This temperature strictly matches the melting temperature range of wax, oil and pigment in the lipstick base, and is lower than the melting temperature of all plastic additives in the formula. Then, the electromagnetic heater 12 is activated to uniformly and constantly heat the heat-conducting cone 6, so that the basic paste components in the raw material melting chamber are completely melted into liquid, while the plastic particles that have not reached the melting point remain solid. The liquid basic paste flows downward under the action of gravity. When it passes through the porous filter ring 8, all solid plastic particles are completely intercepted by the microporous structure of the porous filter ring 8. Since only a small amount of polymer plastic additives are added to the paste to improve the molding hardness, fracture resistance and makeup holding effect of the paste, the small amount of polymer plastic additives will not clog the porous filter ring 8. At the same time, the pure basic paste continues to be smoothly introduced into the redundant cylinder 14 through the second sealing sleeve 13. At this time, the central controller 55 controls the upper stop valve 17 and the lower stop valve 18 to be kept fully open in sync. The base paste is discharged from the equipment through the vertical flow channel 16 and the filling head 21 in sequence. It can be collected separately and re-adjusted for reuse. After the base paste is completely discharged, the central controller 55 precisely raises the temperature of the electromagnetic heater 12 to the melting temperature of the corresponding plastic additive, and performs a second stage of constant temperature heating on the heat-conducting cone 6, so that the plastic particles intercepted on the surface and inside of the porous filter ring 8 are completely melted into liquid, and then discharged and collected separately through the same flow path. This function utilizes the fact that the melting temperature of plastic components is higher than that of the lipstick base but the temperature difference is moderate. Combined with the precise temperature control capability of this equipment and the in-situ solid-liquid separation function of the porous filter ring, different components can be separated in stages without disassembling any flow channel components, which greatly reduces the direct scrap loss caused by raw material ratio errors.

[0026] The working principle of the lipstick production filling and molding equipment provided by this invention is as follows: First, during the initial preparation and trial operation phase, the claw pins 23 at the bottom of the second plunger rod 22 puncture and engage the solid raw material block in situ. The axial and circumferential anti-lateral torque provided by the claw pins 23 is used to lock the raw material block in the opposite direction, thereby overcoming the circumferential friction torque generated when the inverted conical cutting cylinder 4 rotates at high speed below, and preventing the solid raw material from spinning freely inside the cylinder 2. During this process, the pressure sensor senses the positive pressure on the contact surface in real time, enabling the electric push rod 26 to adjust the axial force of the push rod in real time according to the feedback, maintaining a constant mechanical stress state at the planing interface. This avoids material slippage due to insufficient contact force or mechanical jamming due to excessive force at the physical level, ensuring the stability of the material flow rate at the feed source. Subsequently, when the cutting and heating module is activated, the high-speed rotating cutting blade 10 continuously planes the bottom surface of the solid raw material block. The planed micro-thin flakes of material enter the raw material melting chamber and are blocked and guided by the spiral protrusions 7 fixedly wound on the inner wall of the heat-conducting cone 6. This forces the moving flakes of material to generate violent tumbling and intertwining stirring motion on the heated wall surface. This motion greatly increases the heat exchange efficiency between the material and the heated wall surface, so that the heat generated by the electromagnetic heater 12 can be quickly and evenly conducted to the interior of each piece of material, thereby allowing the material to melt quickly and completely in a thin film state. This reduces the phenomenon of scorching, clumping, or high-temperature deterioration of heat-sensitive paste raw materials such as lipstick due to uneven local heating and excessive residence time. During this process, the pure liquid material after being mechanically intercepted by the porous filter ring 8 is introduced into the redundant cylinder 14 for accumulation until the liquid level inside reaches the calibrated initial preset value. By setting this preset value, sufficient fluid material is prepared in advance upstream of the subsequent filling mechanism. The sufficient liquid material completely removes the air and gaps remaining in the pipeline, thus providing a stable and bubble-free feeding basis for the downstream quantitative filling before formal filling. Next, in the quantitative filling stage, the self-locking characteristics of the worm gear 35 and worm 37 transmission pair are used to effectively resist the reverse hydraulic impact generated by the high viscosity paste during reciprocating injection, ensuring the smooth operation of the mechanism. At the same time, the continuous rotation of the main shaft 34 is converted into the linear reciprocating motion of the first plunger rod 20 through the crank slide mechanism. At the moment of reversal when the plunger rod moves to the end and the speed decelerates to zero, the upper stop valve 17 and the lower stop valve 18 are alternately opened and closed to achieve a smooth and impact-free switching of the flow channel, thereby effectively preventing the splashing of materials caused by sudden stoppage and the stringing and dripping at the end of the filling head 21. It is worth noting that during continuous filling, the liquid material inside the redundant cylinder 14 plays a role in balancing the supply and filling requirements. Once the liquid level in the redundant cylinder 14 falls below the preset value due to changes in the upstream melting speed, the central controller 55 adjusts the heating power of the electromagnetic heater 12, the speed of the cutting drive motor 32, and the pushing speed of the electric push rod 26 according to the data returned by the liquid level monitoring sensor. This increases the cutting and melting of raw materials in a short time, allowing the liquid level in the redundant cylinder 14 to rise quickly and be maintained at the preset value again. This effectively reduces the material shortage problem caused by fluctuations in supply or downstream suction, ensuring that the horizontal flow channel 19 can suck up an equal amount of full liquid material each time it sucks up, thus ensuring the consistency of continuous filling volume. Finally, the rotation of the piston metering spindle 34 and the action of the intermittent indexing mechanism are linked and bound together by the synchronous belt 52; by using the periodic engagement and disengagement of the single-tooth drive pin 49 and the indexing meshing groove 47, the material suction process of the first plunger rod 20 is strictly time-corresponding to the rotation step of the mold support plate 44, and the filling and pushing of the first plunger rod 20 is strictly time-corresponding to the static waiting state of the mold support plate 44. This completely eliminates the time and space misalignment caused by electrical control lag, ensuring that the mold below is in a precise static state every time the filling head 21 injects material, thus achieving highly efficient fully automatic molding production.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A lipstick production, filling, and molding equipment, characterized in that: Includes a base (1), on which a shear phase change feeding unit, a volume metering filling unit and an intermittent feeding and conveying unit are provided; The shear phase change feeding unit includes a material cylinder (2) fixed on a base (1), a first sealing bushing (3) and a heating cone (11). The rotating end of the first sealing bushing (3) is fixedly connected to an inverted conical cutting cylinder (4). An upright guide cone (5) is provided inside the inverted conical cutting cylinder (4) and a heat-conducting cone (6) is provided on its outer sleeve. A raw material melting chamber is formed between the heat-conducting cone (6) and the inverted conical cutting cylinder (4). The heating cone (11) is sleeved on the outer periphery of the heat-conducting cone (6) and an electromagnetic heater (12) is provided on its inner wall. The volumetric metering filling unit includes a T-shaped tee body (15) fixed on a base (1). The T-shaped tee body (15) has a vertical flow channel (16) and a horizontal flow channel (19). A filling head (21) is fixedly connected to the bottom of the vertical flow channel (16), and a first plunger rod (20) is slidably disposed in the horizontal flow channel (19). The intermittent feeding and conveying unit includes an annular protective cover (41) fixed on the base (1), the annular protective cover (41) has a feeding notch (42), the base (1) is rotatably connected to a feeding shaft (43) that passes through the annular protective cover (41), and the feeding shaft (43) is fixedly connected to a mold bearing plate (44) and a cross-shaped transmission flange (45).

2. The lipstick production, filling, and molding equipment according to claim 1, characterized in that: The inverted conical cutting cylinder (4) has multiple through holes (9) on its side wall that connect to the raw material melting chamber and multiple cutting blades (10). The inner wall of the heat-conducting cone (6) is uniformly provided with multiple spiral protrusions (7).

3. The lipstick production, filling, and molding equipment according to claim 1, characterized in that: The bottom of the heat-conducting cone (6) is provided with a porous filter ring (8). The output end of the porous filter ring (8) is connected to a redundant cylinder (14) through a second sealing bushing (13). The redundant cylinder (14) is connected to the top of the vertical flow channel (16), and the redundant cylinder (14) is equipped with a liquid level monitoring sensor.

4. The lipstick production, filling, and molding equipment according to claim 1, characterized in that: The vertical flow channel (16) is provided with an upper shut-off valve (17) at the upper end and a lower shut-off valve (18) at the lower end.

5. The lipstick production, filling, and molding equipment according to claim 1, characterized in that: The outer circumference of the rotating end of the first sealing bushing (3) is fixedly fitted with a driven gear ring (31), and the top of the base (1) is fixedly connected with a cutting drive motor (32). The output end of the cutting drive motor (32) is fixedly connected with a drive gear (33) that meshes with the driven gear ring (31).

6. The lipstick production, filling, and molding equipment according to claim 1, characterized in that: The material cylinder (2) is slidably provided with a second plunger rod (22), and a plurality of claw pins (23) are evenly provided at the bottom of the second plunger rod (22), and a pressure sensor is provided at the bottom of the second plunger rod (22).

7. The lipstick production, filling, and molding equipment according to claim 6, characterized in that: The top of the base (1) is fixedly connected to a lifting slide rail (24), and a lifting slider (25) is slidably connected on the lifting slide rail (24). One end of the lifting slider (25) is fixedly connected to an electric push rod (26), and the output end of the electric push rod (26) is fixedly connected to the top end of the second plunger rod (22). The lifting slide rail (24) is rotatably connected to a lifting screw (27), which is threadedly driven to the lifting slider (25). The bottom end of the lifting screw (27) is fixedly connected to a first bevel gear (28), and a second bevel gear (29) that meshes with the first bevel gear (28) is rotatably connected to one side of the lifting slide rail (24). An adjustment handle (30) is fixedly connected to the shaft end of the second bevel gear (29).

8. The lipstick production filling and molding equipment according to claim 1, characterized in that: The top of the base (1) is rotatably connected to a main shaft (34), a worm gear (35) is fixedly sleeved on the main shaft (34), a servo drive motor (36) is fixedly connected to the top of the base (1), a worm (37) that meshes with the worm gear (35) is fixedly connected to the output end of the servo drive motor (36), and an L-shaped transmission rod (38) is fixedly connected to the top of the main shaft (34). The end of the first plunger rod (20) is fixedly connected to a sliding groove connecting plate (39). A through rectangular groove (40) is provided on the sliding groove connecting plate (39) along its length direction. The free end of the L-shaped transmission rod (38) is slidably embedded in the rectangular groove (40).

9. The lipstick production filling and molding equipment according to claim 8, characterized in that: The edge of the mold support plate (44) is provided with multiple U-shaped positioning notches (46), and the side of the cross-shaped transmission flange (45) is provided with multiple indexing meshing grooves (47). The top of the base (1) is rotatably connected to an intermediate wheel (48). One end of the intermediate wheel (48) is provided with a single-tooth drive pin (49) that meshes with the indexing groove (47). The shaft end of the intermediate wheel (48) is fixedly sleeved with a first synchronous wheel (50). The main shaft (34) is fixedly sleeved with a second synchronous wheel (51). The first synchronous wheel (50) and the second synchronous wheel (51) are connected by a synchronous belt (52). The top of the base (1) is also provided with a feeding conveyor belt (53) that is connected to the feeding notch (42), and a feeding cylinder (54) that is fixedly connected to the base (1) and located above the annular protective cover (41).

10. The lipstick production, filling, and molding equipment according to claim 1, characterized in that: It also includes a central controller (55) fixedly connected to the base (1), the central controller (55) being electrically connected to the electromagnetic heater (12), and all power drive components and sensors in the entire device being electrically connected to the central controller (55).

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