A fully automatic powder plasticizing production line

Abstract

This invention relates to the field of powder material processing and automated production equipment, and particularly to a fully automated powder plasticizing production line. It includes a powder feeding unit, a powder pretreatment unit, a powder plasticizing unit, a plasticizing extrusion unit, and a conveying unit. The powder feeding unit conveys powder to the pretreatment unit via an elevator. After precise batching by a vibrating screen and metering device, the powder is alternately transferred from the feed hopper to the unloading station by a dual-workstation transfer device and a transfer device. The unloading device is connected to a drying device for drying. The powder plasticizing unit is connected to the plasticizing extrusion unit via a heated conveying hopper and a discharge valve. The plasticizing extrusion unit is set at a first height, and the extrusion motor drives a screw to fill the plasticized powder into a shell to form a shell component. Finally, the powder is transferred to the next process by the conveying unit. From powder feeding to extruding the plasticized material, the entire process is automated, achieving the goals of improving production efficiency, shortening the production cycle, and saving labor costs.

Description

Technical Field

[0001] This invention relates to the field of powder material processing and automated production equipment, and in particular to a fully automated powder plasticizing production line. Background Technology

[0002] Currently, in industries such as plastics, food, and chemicals, many small and medium-sized manufacturing enterprises still commonly use manual or semi-automated production methods for processing and filling plasticized powders (such as PVC, TPU, and nylon). The typical process is as follows: first, operators manually feed bagged powder raw materials into an open hopper; then, after preliminary heating and melting, the powder is roughly extruded by manually controlled equipment.

[0003] The aforementioned production model, which relies primarily on manual labor, has the following drawbacks:

[0004] 1. Low production efficiency: The slow speed of manual feeding, weighing, and filling stations makes continuous operation impossible, becoming a bottleneck to increasing production capacity. Furthermore, the production pace depends on the operator's skill and physical strength, making it difficult to meet the demands of large-scale industrial production.

[0005] 2. Poor product consistency and unstable quality:

[0006] Low accuracy of filling station: Manual weighing and filling stations are greatly affected by subjective factors, which can easily lead to weight deviations, resulting in uneven product weight and low yield.

[0007] 3. Unstable process parameters: Manual control of key parameters such as temperature control and extrusion speed leads to large fluctuations, resulting in uneven plasticization of the material, which directly affects the physical properties and appearance quality of the final product.

[0008] 4. High production costs: Reliance on a large number of skilled workers leads to increasingly high labor costs. At the same time, a high product defect rate results in significant raw material waste, further increasing production costs.

[0009] 5. Harsh working environment with potential safety hazards:

[0010] Dust pollution: Open feeding and powder conveying processes generate large amounts of dust, which not only pollute the environment and endanger the respiratory health of operators, but also pose a potential risk of dust explosion.

[0011] Health and safety risks: Operators are exposed to high-temperature molten materials and equipment for extended periods, posing a risk of occupational injuries such as burns. Furthermore, human intervention increases the likelihood of equipment malfunction.

[0012] Therefore, this invention proposes a fully automated powder plasticizing production line, which can improve production efficiency, shorten the production cycle, save labor costs, and achieve fully automated production. Summary of the Invention

[0013] The purpose of this invention is to solve the problems existing in the prior art and to propose a fully automated powder plasticizing production line.

[0014] To achieve the above objectives, the present invention adopts the following technical solution: including:

[0015] Powder feeding unit: includes a powder elevator for conveying powder from a first height to a second height;

[0016] The powder pretreatment unit includes: a powder vibrating sieve device, which is set at a third height, and the powder vibrating sieve device is used to receive the powder poured in at a second height and sieve the powder that meets the requirements;

[0017] A powder metering device is used to accurately measure the sieved powder to achieve a preset weight value.

[0018] The transfer device includes a dual-workstation transfer device, a material hopper, and a transfer device. The material hopper includes a first material hopper and a second material hopper. The dual-workstation transfer device is used to transfer the metered powder from a third height to a fourth height, and drives the first material hopper or the second material hopper to alternately receive the powder below the powder vibrating screen device. The transfer device moves the first material hopper / second material hopper to the unloading station to release the powder.

[0019] The unloading station is equipped with an unloading device;

[0020] A drying device, connected to the unloading device, is used to receive the released powder and perform drying treatment;

[0021] Powder plasticizing unit: located at the fifth height and connected to the drying device, including a heated conveying hopper and a discharge valve, wherein the discharge valve is located at the outlet of the heated conveying hopper;

[0022] Plasticizing extrusion unit: Located at the first height and connected to the outlet of the heated conveying hopper, it is used to fill the plasticized powder into the shell to form a shell component, including an insulated material tank, a filling tube, an extrusion motor, a screw, and an extruder base. The insulated material tank is located at one end of the extruder base, and the extrusion motor is located at the top of the extruder base. The extrusion motor drives the screw to rotate inside the filling tube.

[0023] Preferably, the dual-function displacement device includes a base, on which a material barrel rotating disk assembly is mounted. The material barrel rotating disk assembly includes a material barrel rotating disk, and a column is mounted above the material barrel rotating disk. The material barrel rotating disk can drive the column to rotate in both directions. A pair of vertical slide rails are respectively mounted on opposite sides of the column. A transition plate is slidably connected to the pair of vertical slide rails. A material barrel clamping frame is mounted on the transition plate. A sprocket base is connected above the material barrel clamping frame and the transition plate. A transmission sprocket is connected above the sprocket base. A bearing mounting plate is mounted on the top of the column. A hydraulic motor is mounted on the bearing mounting plate. The output end of the hydraulic motor meshes with the transmission sprocket. A counterweight plate is fixedly connected to the other end of the transmission sprocket.

[0024] Preferably, the material bucket clamping frame is adapted to the size of the first material bucket / second material bucket. The first material bucket and the second material bucket have the same structure. The first material bucket lid has a material bucket inlet that runs through it. One end of the material bucket inlet is a circular hole, and the other end is an elongated hole. A swing-type end cap is provided on the material bucket inlet and corresponds to it. The outer diameter of the swing-type end cap is larger than the circular hole at the material bucket inlet. One end of the swing-type end cap is connected to a swing arm. The swing arm corresponds to the elongated hole. The middle part of the swing arm is hinged to the swing arm bracket through a rotating shaft and can swing up and down around the rotating shaft. The other end of the swing arm bracket is provided with a swing arm counterweight.

[0025] Preferably, a bottom cover is provided at the opening of the first material bucket, and an installation groove is provided at the bottom edge of the bottom cover. A bracket is installed on the installation groove, and a discharge port composed of multiple valve discs is rotatably connected to the bracket. The multiple valve discs are distributed circumferentially along the discharge port, and the edges of adjacent valve discs can fit together to form a sealing fit to close the discharge port. A valve handle is provided at the other end of the multiple valve discs, and the valve handle extends out of the bottom of the bottom cover. A pressure cap is provided on the lower periphery of the bottom cover, and an elastic element is provided on the upper part of the pressure cap. A gripping block is fixed on the outer wall of the first material bucket, and multiple gripping shafts are transversely inserted through the gripping block.

[0026] Preferably, the multiple valve handles are connected to the unloading device in a driven linkage. The unloading device includes an unloading mounting base, on which a feeding barrel opening is mounted. The feeding barrel opening is slidably connected to a docking device, which includes a ring-shaped interface, a docking plate, and a ring-shaped discharge port arranged sequentially from top to bottom. The top of the ring-shaped interface has multiple grooves corresponding to the valve handles. The unloading mounting base is also provided with a guide rod and a thin cylinder. The guide rod is arranged circumferentially around the ring-shaped discharge port and is slidably connected to the docking plate. The output end of the thin cylinder is connected to the docking plate. The feeding barrel opening is connected to the inlet of the drying device.

[0027] Preferably, the transplanting device includes a transplanting base, which moves laterally reciprocally via a guide rail pair. A transplanting column is fixedly installed on one side of the top of the transplanting base. A screw-driven linear module is installed on the front side of the transplanting column. A gripping mechanism is installed at the front end of the screw-driven linear module. The gripping mechanism is configured to clamp and release the material bucket.

[0028] Preferably, the guide rail pair includes a transverse drive mechanism and a transverse slide rail, the output end of the transverse drive mechanism is connected to the transplanting base, and the transplanting base is slidably mounted on the transverse slide rail;

[0029] The lead screw drive linear module includes:

[0030] A lifting motor is installed at the top of the transplanting column;

[0031] The longitudinal drive mechanism includes a lead screw driven by the lifting motor, a transmission plate forming a helical transmission pair with the lead screw, and a vertical slide rail fixed to the transplanting column; the transmission plate is slidably connected to the vertical slide rail, and the lifting motor drives the transmission plate to perform linear reciprocating motion along the longitudinal direction.

[0032] Preferably, the gripping mechanism includes: a gripping mounting plate, fixedly mounted on the front side of the transmission plate.

[0033] A set of transplanting gripping blocks is slidably connected to the front side of the gripping mounting plate via a first slide rail.

[0034] The gripping motor drives the set of transplanting gripping blocks to move closer or further apart along the first slide rail, so as to clamp and release the material bucket.

[0035] The transplanting gripper block has a self-lubricating sleeve at its opposite end, which is configured to accommodate and support the gripper shaft on the material bucket.

[0036] Preferably, the heat-insulating material barrel is funnel-shaped and fixed to the front end of the extruder base by a funnel mounting seat. The screw passes through the funnel mounting seat and the bottom of the heat-insulating material barrel and is spirally connected to the output end of the extrusion motor. The extrusion motor is configured to drive the screw to rotate inside the filling tube. A gear and rack mechanism is also provided on one side of the lower part of the extrusion motor mounting seat to manually drive the extrusion motor mounting seat to move forward or backward. The gear and rack mechanism is driven by rotating a handwheel.

[0037] Preferably, the screw groove volume gradually decreases from the feed end to the discharge end.

[0038] Compared with existing technologies, the fully automated powder plasticizing production line provided by this invention has the following advantages:

[0039] 1. Improve production efficiency. The production cycle is precisely controlled by the PLC program, eliminating the dependence on the operator's skill and physical strength, and the production speed is stabilized at the optimal state.

[0040] 2. Reduce production costs. This production line only requires a few people to monitor or perform auxiliary operations, replacing a large number of previous feeding, weighing, and handling positions.

[0041] 3. Improve product quality consistency and high precision. The entire process is controlled by a closed-loop PLC system. Key parameters such as plasticizing temperature, screw speed, and powder metering remain highly stable, ensuring that the plasticizing effect, density, and performance indicators of each batch of products are highly consistent, and eliminating batch quality differences.

[0042] 4. Improved working environment: From feeding to closed conveying and plasticizing, the entire process is almost dust-free, eliminating dust hazards and protecting the health of operators; and operators do not need to come into contact with high-temperature equipment or moving parts, fundamentally avoiding the risks of burns, mechanical injuries and chemical contact. Attached Figure Description

[0043] Figure 1 This is a diagram of the installation framework of the present invention;

[0044] Figure 2 This is a side view of the present invention;

[0045] Figure 3 This is a perspective view of the powder pretreatment unit of the present invention;

[0046] Figure 4 This is a three-dimensional view of a powder vibrating sieve device;

[0047] Figure 5 A three-dimensional view of the powder metering device and the duplex displacement device;

[0048] Figure 6 This is a three-dimensional schematic diagram of the material hopper;

[0049] Figure 7 for Figure 5 Sectional view of the material barrel;

[0050] Figure 8 This is a schematic diagram of the material discharge port of the material bucket;

[0051] Figure 9 A three-dimensional view of the transplanting device;

[0052] Figure 10 This is a schematic diagram of the combination of the unloading device and the drying device;

[0053] Figure 11 This is a three-dimensional schematic diagram of a powder plasticizing unit;

[0054] Figure 12 for Figure 11 Schematic diagram of a heated conveyor silo;

[0055] Figure 13 This is a schematic diagram of a plasticizing extrusion unit;

[0056] 1. Powder feeding unit,

[0057] 2. Powder pretreatment unit; 20. Powder vibrating sieve device; 21. Powder metering device.

[0058] 22. Transfer device,

[0059] 220. Dual-function displacement device; 221. First material bucket; 2210. Swinging end cover; 2211. Swing arm; 2212. Swing arm bracket; 2213. Swing arm counterweight; 2214. Material bucket inlet; 2215. Bottom cover; 2216. Valve disc; 2217. Valve handle; 2218. Pressure cap; 2219. Elastic element; 2220. Ring nut; 2221. Second ring nut; 2223. Positioning block; 2224. Grip block; 2225. Grip shaft.

[0060] 222. Second material bucket,

[0061] 223. Rotary disc for material hopper; 2231. First hydraulic motor;

[0062] 224. Column; 225. Vertical slide rail; 226. Transition plate; 227. Bucket clamping frame; 228. Sprocket base; 229. Drive sprocket; 230. Bearing mounting plate; 231. Hydraulic motor; 232. Counterweight plate.

[0063] 240. Transplanting device; 241. Transplanting base; 242. Lifting motor; 243. Transplanting gripper block; 244. Transplanting translation motor; 245. Gripping motor; 246. Self-lubricating support sleeve; 247. Gripping mounting plate.

[0064] 26. Unloading device; 260. Unloading mounting base; 261. Feeding bucket opening; 262. Guide rod; 263. Thin cylinder; 264. Ring column interface; 265. Groove opening; 266. Connecting plate; 267. Ring column discharge port.

[0065] 28. Drying device; 281. Discharge port; 282. Residual material overflow port.

[0066] 3. Powder plasticizing unit; 30. Heated conveyor hopper; 31. Spiral mixing shaft; 32. Hopper mixing motor; 33. Discharge valve.

[0067] 4. Plasticizing extrusion unit; 40. Insulated material tank; 41. Filling pipe; 42. Extrusion motor; 421. Extruder base; 422. Extrusion motor mounting base; 43. Screw; 44. Funnel mounting base; 45. Insulated material tank stirring motor; 46. Handwheel; 47. Fixed screw; 5. Conveying unit. Detailed Implementation

[0068] 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.

[0069] Example 1:

[0070] A fully automated plastic powder filling production line, such as Figures 1-13 As shown, it includes:

[0071] Powder feeding unit 1: includes a powder elevator for conveying powder from a first height to a second height;

[0072] The powder pretreatment unit 2 includes: a powder vibrating sieve device 20, which is set at the third height. The powder vibrating sieve device 20 is used to receive the powder poured in at the second height and sieve the powder to meet the requirements.

[0073] The powder metering device 21 is used to accurately measure the sieved powder to achieve a preset weight value.

[0074] The transfer device 22 includes a dual-workstation transfer device 220, a material hopper, and a transfer device 240. The material hopper includes a first material hopper 221 and a second material hopper 222. The dual-workstation transfer device 220 is used to transfer the metered powder from a third height to a fourth height, and drives the first material hopper 221 or the second material hopper 222 to alternately receive the powder below the powder vibrating screen device 20. The transfer device 240 transfers the first material hopper 221 / second material hopper 222 to the unloading station to release the powder.

[0075] A material unloading device 26 is installed at the unloading station;

[0076] Drying device 28, connected to unloading device 26, is used to receive the released powder and dry it.

[0077] Powder plasticizing unit 3: Located at the fifth height and connected to the drying device 28, it includes a heated conveying hopper 30 and a discharge valve 33, with the discharge valve 33 located at the outlet of the heated conveying hopper 30;

[0078] Plasticizing extrusion unit 4: Located at the first height and connected to the outlet of the heated conveying hopper 30, it is used to fill the plasticized powder into the shell to form a shell component. It includes an insulated material tank 40, a filling pipe 41, an extrusion motor 42, a screw 43, and an extruder base 421. The insulated material tank 40 is located at one end of the extruder base 421, and the extrusion motor 42 is located at the top of the extruder base 421. The extrusion motor 42 drives the screw 43 to rotate inside the filling pipe 41.

[0079] Conveying unit 5 is used to convey the housing part into the next process.

[0080] As a preferred embodiment of the present invention, such as Figures 1-2 As shown, a two-story platform is built at the installation location to install these devices, such as... Figure 1 and Figure 2 As shown, the first floor and the second floor platform are respectively. The first height is located on the first floor. The second and fourth heights are achieved by building support platforms on the second floor platform. The second and fourth heights correspond to the second and third support platforms, respectively. The third height corresponds to the second floor platform. The fourth height is higher than the second and third heights. The powder vibrating sieve device 20 is installed at the third height (second floor platform), and its inlet is located at the second height (second support platform) for easy powder pouring. The drying device 28 is located at the fourth height (third support platform). The powder plasticizing unit 3 is located on the fourth support platform built between the first height (first floor) and the third height (second floor platform). The fourth support platform, the second support platform, and the third support platform are staggered in the y-direction, with the fourth support platform being the outermost. The plasticizing extrusion unit 4 and the conveying unit 5 are located at the first height (first floor). The fourth support platform is separated from the other platforms by an installation wall. The conveying unit 5 extends through the installation wall in the z-direction. The wall can be used to install the necessary hydraulic pipes and material pipes for conveying powder. Understandably, the second, third, and fourth support platforms are all equipped with ladders for workers to walk on, and each platform is also surrounded by railings to protect the safety of workers.

[0081] On the ground floor, there is an electrical control cabinet and a hydraulic system. The electrical control cabinet contains a control system, which controls the hydraulic system to precisely control the powder feeding unit 1, the powder pretreatment unit 2, the powder plasticizing unit 3, the plasticizing extrusion unit 4, and the conveying unit 5.

[0082] The powder elevator lifts powder from the first floor to the second-floor platform for processing. The powder feeding unit 1 mainly includes a lifting frame with one open side to facilitate placing bagged powder or other containers filled with powder onto the elevator. The powder elevator utilizes existing technology and can slide along both sides of the lifting frame. Power is supplied by the elevator's hydraulic cylinders. The powder elevator runs perpendicular to the ground. Figure 1 In the y-direction shown, the powder elevator transfers the powder loaded on the first floor to the second-floor platform. The lifting frame passes through the second-floor platform and the second support platform. After the powder is lifted to the second support platform, the lifting frame extends above the second support platform and is equipped with a safety door for pushing out the loaded powder. After the powder container is pushed out, the safety door closes, and the powder is manually poured into the guide chute at the inlet of the powder vibrating screen 20. The guide chute is square or conical and has a certain slope. A vibrator is also installed on the guide chute, which can effectively break the bridging and rat hole phenomenon of the powder material, ensure the continuity and stability of powder conveying, keep the powder material in a uniform flow state, reduce the adhesion of powder on the chute wall, and reduce powder loss and cleaning and maintenance frequency. This provides stable feeding conditions for downstream powder metering devices. Powder enters the powder vibrating screen 20 through the inlet and begins screening. The powder vibrating screen 20 is installed on the second-floor platform. The second support platform and the second-floor platform form a height difference, allowing the powder to automatically fall into the feed inlet of the powder vibrating screen 20 by gravity. This achieves automated, non-powered material transfer, reduces the use of mechanical conveying devices, and lowers energy consumption and equipment complexity. The powder vibrating screen 20 uses existing technology for screening, employing air-source vibration. It consists of three layers: the first screening layer, the second screening layer, and the third screening layer. The first screening layer is used to screen large particles of powder, the second screening layer is used to screen powder that meets the target particle size specifications, and the third screening layer is used to transfer the screened small particles of powder out of the powder vibrating screen 20. Miniature cylinders are fixedly connected to both sides of the lower plane of the second screening layer outlet. They are used to push open the swing-type end cap 2210 of the first material barrel 221 or the second material barrel 222. The output end of the miniature cylinder is connected to a docking plate. A docking interface runs through the middle of the docking plate. A telescopic tube is connected above the docking interface. The lower part of the docking interface corresponds to the material barrel inlet 2214 of the first material barrel 221. The telescopic tube is connected to the second screening layer outlet.

[0083] To improve efficiency, such as Figure 5 As shown, a dual-workload displacement device 220 is provided, including a base, on which a material drum rotary disk assembly is provided, including a rotary reducer and a first hydraulic motor 2231. The rotary reducer meshes with the output shaft of the first hydraulic motor 2231. The first hydraulic motor 2231 is a cycloidal hydraulic motor, which is connected to the hydraulic system through pipelines. The material drum rotary disk 223 rotates 180 degrees forward and backward through the cycloidal hydraulic motor. The cycloidal hydraulic motor is a prior art technology and is a hydraulic actuator with "low speed and high torque, compact structure and strong environmental adaptability". With its unique cycloidal meshing principle, it has become the preferred power source for many heavy-load and low-speed rotational working conditions.

[0084] The output shaft of the first hydraulic motor 2231 is connected to the rotary reducer. The rotary reducer uses a gear mechanism to reduce speed and increase torque. The gear mechanism then meshes with the rotating disc 223 of the material bucket.

[0085] Power is transmitted via the path of first hydraulic motor 2231 → rotary reducer → gear mechanism transmission → rotating disc 223 of material bucket.

[0086] A column 224 is mounted above the rotating disc 223 of the material hopper. A pair of vertical slide rails 225 are mounted on opposite sides of the column 224. A transition plate 226 is slidably connected to the pair of vertical slide rails 225. A material hopper clamping frame 227 is mounted on the transition plate 226. A sprocket base 228 is connected above both the material hopper clamping frame 227 and the transition plate 226. A transmission sprocket 229 is connected above the sprocket base 228. A bearing mounting plate 230 is mounted on the top of the column 224. A hydraulic motor 231 is mounted on the bearing mounting plate 230. The output end of the hydraulic motor 231 meshes with the transmission sprocket 229. A counterweight plate 232 is fixedly connected to the other end of the transmission sprocket 229. The counterweight plate 232 significantly reduces the vibration and impact of the transmission sprocket 229 during movement, making the operation smoother. The drive source only needs to overcome friction and working resistance, without the need for additional countermeasures against unbalanced forces, thus allowing for the selection of a lower-power drive source, saving energy and reducing consumption. The hydraulic motor 231 is connected to the hydraulic system via pipelines. The hydraulic motor 231 operates at a speed of 10-500 RPM.

[0087] The transition plate 226 slides on the vertical slide rail 225 via the transition slider. At the upper and lower ends of the vertical slide rail 225, L-shaped limiting plates are respectively provided. A buffer cylinder is fixed on the short side of the L-shaped limiting plate. The buffer cylinder is used to limit the material bucket clamping frame 227 and the transition plate 226. When the material bucket clamping frame 227 and the transition plate 226 move downward, the top of the buffer cylinder abuts against the bottom of the material bucket clamping frame 227 and the transition plate 226. Similarly, at the upper end of the vertical slide rail 225 installed on the column 224, the same L-shaped limiting plate and buffer cylinder are also fixedly connected between the two vertical slide rails 225. The bottom of the buffer cylinder abuts against the top of the material bucket clamping frame 227 and the transition plate 226. When the material bucket clamping frame 227 and the transition plate 226 move upward, the buffer cylinder also plays a limiting role.

[0088] The dual-station transfer device 220, exemplarily, includes stations A1, B1, and B2 from right to left. Station A1 is the powder loading station, station B1 is the lifting preparation station, and station B2 is the clamping station of the transfer device 240. Specifically, during operation: after the first hopper 221 is loaded with a preset weight of powder at station A1, the first hopper 221 is lifted 20mm away from the powder metering device 21, and the hopper rotating disk 223 rotates 180°, causing the first hopper 221 to rotate to station B1. The second hopper 222 rotates to station A1 to continue loading powder. The first hopper 221 is lifted under the drive of the hydraulic motor 231. Upon reaching station B2, the transfer device 240 transports the first material bucket 221 to the unloading device 26. After the powder is unloaded, the transfer device 240 returns the first material bucket 221 to station B2. The hydraulic motor 231 reverses, bringing the first material bucket 221 back from station B2 to station B1. The material bucket rotating disc 223 continues to rotate in reverse, exchanging positions between the first and second material buckets 221 and 222. The second material bucket 222 rotates to station B1 and, driven by the hydraulic motor 231 on the same side, is lifted to station B2. The transfer device 240 then continues to hold the second material bucket 222 and transport it to the unloading device 26. Simultaneously, the first material bucket 221 continues to be filled with powder at station A1. The first and second material buckets 221 and 222 circulate, transporting powder from the powder vibrating screen 20 to above the drying device 28.

[0089] A weighing pan base is fixed on the base, and a powder metering device 21 is fixed on the weighing pan base. The powder metering device 21 adopts existing technology and can accurately weigh the powder. There are no restrictions here. The upper end of the powder metering device 21 corresponds to the discharge port formed by the valve flaps 2216 of the material bucket.

[0090] The clamping part of the bucket clamping frame 227 can clamp the bucket. A ring-shaped boss is fixed on the surface of the bucket. The clamping part of the bucket clamping frame 227 contacts the ring-shaped boss and the contact surface is inclined. A positioning block 2223 is symmetrically arranged on the inclined surface of the ring-shaped boss. The inclined surface of the clamping part of the bucket clamping frame 227 is provided with a positioning groove that matches the positioning block 2223. When the bucket clamping part of the bucket clamping frame 227 clamps the bucket, the inclined surface of the bucket clamping frame 227 is in close contact with the inclined surface of the ring-shaped boss. With the positioning of the positioning block 2223, the clamping part of the bucket clamping frame 227 tightly clamps the bucket.

[0091] A gripping block 2224 is also fixed on the outer wall above the annular boss of the material bucket. Multiple gripping shafts are horizontally inserted through the gripping block 2224. The two ends of the gripping shaft are set with a tapered diameter reduction structure. This structure facilitates the precise alignment of the gripping shaft and smooth insertion into the transplanting gripping block 243.

[0092] The first material bucket 221 and the second material bucket 222 have the same structure, such as Figure 7 and Figure 8As shown, a material inlet 2214 is provided through the lid of the first material bucket 221. The material inlet 2214 has a circular hole at one end and an elongated hole at the other end. A reset end cap is provided on the material inlet 2214. The reset end cap includes a swing end cap 2210, which corresponds to the circular hole. The outer diameter of the swing end cap 2210 is larger than that of the circular hole. One end of the swing end cap 2210 is connected to a swing arm 2211. The middle part of the swing arm 2211 is hinged to the swing arm bracket 2212 through a rotating shaft and can swing up and down around the rotating shaft. The swing arm bracket 2212 is fixedly connected to the lid panel.

[0093] The swing arm 2211 is a long strip-shaped component, which is hinged to the swing arm bracket 2212 via a pin, allowing the swing arm 2211 to swing up and down within a certain angle range. The end of the swing arm 2211 near the swing-type end cap 2210 can swing up and down in the long strip-shaped groove in the bucket inlet 2214. Its free end is provided with a swing arm counterweight 2213, which acts as a counterweight during the upward movement of the swing-type end cap 2210. The swing arm counterweight 2213 is exemplarily a cylinder, with the end of the swing arm 2211 inserted into the middle of the cylinder. Because the outer diameter of the swing-type end cap 2210 is larger than the circular hole at the bucket inlet 2214, when the swing-type end cap 2210 loses the external force, the swing-type end cap 2210 automatically rises under the action of the swing arm counterweight 2213 and can cover the bucket inlet 2214 on the bucket lid. By incorporating a counterweight 2213 on the swing arm, the automatic reset and closing of the swing-type end cap 2210 is achieved through the lever principle and gravity. Once the micro cylinder retracts, the swing-type end cap 2210 will immediately and automatically rise under the gravity of the counterweight 2213, reliably covering the material inlet 2214. Since the outer diameter of the swing-type end cap 2210 is larger than the circular opening of the material inlet 2214, this structure naturally forms a physical limit, preventing the swing-type end cap 2210 from moving upwards and reliably closing the material inlet 2214.

[0094] The swing arm 2211 oscillates within the elongated groove of the material hopper inlet 2214. This groove acts as a natural guide, ensuring that the movement trajectories of the swing arm and end cap are precisely constrained, resulting in smoother and more accurate opening and closing actions. The reset end cap is based on a hinged connection, featuring a simple structure and few parts. For maintenance or replacement, the entire reset end cap can be removed simply by disassembling the pin, making maintenance convenient.

[0095] The transplanting device 240 includes a transplanting base 241, which moves laterally and reciprocally via a guide rail pair. A transplanting column is fixedly installed on one side of the top of the transplanting base 241. A screw-driven linear module is installed on the front side of the transplanting column. A gripping mechanism is installed at the front end of the screw-driven linear module. The gripping mechanism is configured to clamp and release the material bucket.

[0096] The guide rail pair includes:

[0097] A transverse drive mechanism and a transverse slide rail are provided. The output end of the transverse drive mechanism is connected to the transplanting base 241, and the transplanting base 241 is slidably mounted on the transverse slide rail.

[0098] The linear module for lead screw drive includes:

[0099] The lifting motor 242 is located at the top of the transplanting column;

[0100] The longitudinal drive mechanism includes a lead screw driven by a lifting motor 242, a transmission plate forming a helical transmission pair with the lead screw, and a vertical slide rail fixed on the transplanting column; the transmission plate is slidably connected to the vertical slide rail, and the lifting motor 242 drives the transmission plate to perform linear reciprocating motion along the longitudinal direction.

[0101] The gripping mechanism includes: a gripping mounting plate 247, which is fixedly mounted on the front side of the transmission plate;

[0102] A set of transplanting gripping blocks 243 are slidably connected to the front side of the gripping mounting plate 247 via a first slide rail.

[0103] The gripping motor 245 drives a group of transplanting gripping blocks 243 to move closer or further apart along the first slide rail, so as to clamp and release the material bucket.

[0104] The transplanting gripper block 243 has a self-lubricating support sleeve 246 on the opposite side end, which is configured to accommodate and support the gripper shaft 2225 on the material bucket.

[0105] Specifically, such as Figure 9 As shown, a transplanting column is mounted on top of the transplanting base 241, and a lifting motor 242 is mounted on top of the transplanting column. A lead screw is mounted on the side of the transplanting base 241 near the double-acting transplanting device 220, with the top of the lead screw connected to the output end of the lifting motor 242. Vertical slide rails are fixed on both sides of the front of the transplanting column, and a transmission plate slides on the vertical slide rails. The middle of the transmission plate is connected to the lead screw. The lead screw, the transplanting base 241, the transmission plate, and the vertical slide rails for guidance form a helical transmission pair. When the lead screw rotates under the drive of the lifting motor 242, the helical transmission causes the transmission plate to move precisely in a straight line along the extension direction of the vertical slide rail, thereby realizing the transplanting action of gripping the mounting plate 247. The transplanting column has high rigidity and stability, and can reliably support the transmission plate.

[0106] A gripping mounting plate 247 is fixedly connected to the front of the transmission plate. A first slide rail is symmetrically arranged in front of the gripping mounting plate 247. A set of transfer gripping blocks 243 slides along the first slide rail in the z direction. The two transfer gripping blocks 243 can be moved laterally closer or further away from each other to clamp the material bucket through the transmission of the first ball screw. The first ball screw is driven by the gripping motor 245, which can be a hydraulic motor or an electric motor.

[0107] Two transplanting gripping blocks 243 are provided with self-lubricating sleeves 246 at opposite ends. The gripping shaft on the material bucket extends into the self-lubricating sleeve 246 to grip the material bucket.

[0108] The transplanting base 241 can be driven laterally by a first hydraulic cylinder. Symmetrically arranged second sliders are located at the bottom of the transplanting base 241, and these two second sliders slide on two transverse slide rails. The transverse slide rails extend towards the unloading device 26. A rack is located in the middle of the two transverse slide rails, and the rack meshes with the output end of the transplanting translation motor 244 to perform transverse reciprocating motion. Through the above structure and driving method, the transplanting device 240 can move laterally as described above. Figure 1 The material bucket moves back and forth in the y and z directions as shown. Under the grip of the two transfer gripping blocks 243, the bucket moves from station B2 to above the unloading device 26.

[0109] When the material hopper moves above the unloading device 26, it is lifted by the thin cylinder 263, thus unloading the powder from the hopper onto the drying device 28. As a preferred embodiment, the specific structure and operation of the material hopper and the unloading device 26 are as follows:

[0110] A bottom cover 2215 is fixedly connected to the opening of the first material bucket 221. The bottom edge of the bottom cover 2215 has multiple mounting grooves, and a bracket is installed on the mounting groove. The mounting groove and the bracket are fitted together in a concave-convex interlocking manner. A discharge port composed of multiple valve petals 2216 is rotatably connected to the bracket. The multiple valve petals 2216 are distributed circumferentially along the discharge port. The edges of adjacent valve petals 2216 can fit together to form a sealing fit to close the discharge port. These valve petals 2216 are symmetrically distributed in a petal-like structure. In this embodiment, they are triangular petal-like structures. Multiple valve discs 2216 are equipped with valve handles 2217 at their other ends. A rotating component is located near the support side of the valve handle 2217 and is rotatably connected to the support. The valve handle 2217 extends out from the bottom of the bottom cover 2215. A pressure cap 2218 is provided on the lower periphery of the bottom cover 2215. The bottom of the pressure cap 2218 has a downward groove. An elastic element 2219 is provided on the upper periphery of the bottom cover 2215. The bottom of the elastic element 2219 abuts against the top of the pressure cap 2218. A second annular nut 2221 is provided on the top of the elastic element 2219 to limit its position when compressed. An annular nut 2220 is also provided on the top of the second annular nut 2221, and the annular nut 2220 is threadedly connected to the bottom cover 2215. In this embodiment, the elastic element 2219 is preferably a compression spring. When the compression spring contacts the pressure cap 2218, it greatly reduces the impact, vibration, and noise during contact, reduces wear on parts such as the pressure cap 2218 and the material bucket, and improves the service life and stability of the equipment.

[0111] Multiple valve handles 2217 are connected to the unloading device 26 in a driven linkage. The unloading device 26 includes an unloading mounting base 260, on which a feeding barrel opening 261 is connected. The feeding barrel opening 261 is slidably connected to a docking device, which includes a ring-shaped interface 264, a docking plate 266, and a ring-shaped discharge port 267 arranged sequentially from top to bottom. The top of the ring-shaped interface 264 is provided with multiple grooves 265, which correspond to the valve handles 2217. The unloading mounting base 260 is also provided with a guide rod 262 and a thin cylinder 263. The guide rod 262 is arranged circumferentially around the ring-shaped discharge port 267. The guide rod 262 is slidably connected to the docking plate 266. The output end of the thin cylinder 263 is connected to the docking plate 266. The feeding barrel opening 261 is connected to the inlet of the drying device 28.

[0112] Specifically, an annular boss is formed on the upper inner wall of the ring column interface 264, and the bottom of the pressure cap 2218 abuts against the annular boss. The downward groove at the bottom of the pressure cap 2218 provides the space required for the valve handle 2217 to swing. The ring column discharge port 267 is slidably disposed within the feeding barrel port 261.

[0113] The second annular nut 2221 is used to limit the position of the mating disc 266 when it slides upward. Specifically, when the annular column interface 264 slides upward, the top of the annular column interface 264 will abut against the bottom of the second annular nut 2221 for limiting. The mating disc 266 and the elastic element 2219 adopt mechanical limiting, which is simple in structure. The mechanical limiting is a purely physical structure, which ensures the absolute reliability of the limiting function of the mating disc 266 and the elastic element 2219 under long-term, high-intensity operation, and provides long-term stable and repeatable positioning accuracy. In dusty environments such as powder feeding, photoelectric sensors are easily contaminated and misjudged, while mechanical limiting can ignore these environmental factors and work stably, which is suitable for powder application scenarios.

[0114] During unloading, such as Figure 10As shown, the output end of the thin cylinder 263 lifts the docking plate 266 upward. The docking plate 266 slides on the guide rod 262, which plays a guiding role. The groove 265 at the top of the annular column interface 264 will lift the valve handle 2217 upward. Since the valve handle 2217 is rotatably connected to the bracket, the end of the valve handle 2217 that extends out of the bottom cover 2215 will tilt upward. The valve disc 2216 at the other end swings downward in sync, thereby opening the discharge port and allowing the powder to be discharged from the discharge port. When the docking plate 266 continues to rise, it will continue to lift the pressure cover 2218, causing the elastic element 2219 to be compressed. When the top of the annular column interface 264 abuts against the bottom of the second annular nut 2221, the mating plate 266 stops rising. When all the powder is discharged, the output end of the thin cylinder 263 retracts. At this time, the elastic element 2219 will have a restoring force, which can be converted into a downward force on the pressure cap 2218, causing the pressure cap 2218 to move downward along the guide rod 262. The groove 265 at the top of the annular column interface 264 will move away from the valve handle 2217, and the valve disc 2216 will gradually tilt upward, that is, converge and close towards the center of the discharge port until the thin cylinder 263 returns to its original position. Only then can the valve disc 2216 reach its maximum closing degree, achieving a reliable seal, stopping the discharge, closing the material hopper, and blocking the discharge channel. The closing action of the material hopper is triggered by the retraction of the telescopic end of the thin cylinder 263, and is ultimately completed by the coordinated action of the pressure cap 2218, the mating plate 266, and the elastic element 2219. This ensures that even in the event of a malfunction in the thin cylinder 263, the valve disc 2216 can automatically and reliably close under the action of the elastic element 2219, thus achieving the inherent safety of the hopper being able to close.

[0115] The first material container 221 and the second material container 222 alternately transport powder into the drying device 28. For example, when the first material container 221 is lifted from the transfer device 22 to the transplanting device 240, the transplanting device 240 adjusts to a suitable position in the longitudinal direction, clamps the first material container 221, and moves laterally above the drying device 28. The unloading device 26 then opens the valve flap 2216 of the first material container 221, and the powder is placed into the drying device 28. Simultaneously...

[0116] After the powder in the first material bucket 221 is empty, the transfer device 240 clamps the first material bucket 221 back to the B2 station. The sensor on the material bucket clamping frame 227 senses the first material bucket 221 and puts it back on the corresponding material bucket clamping frame 227. The hydraulic motor 231 reverses to lower the first material bucket 221 to the B1 station. At the same time, the second material bucket 222 is filled with powder at the A1 station. After reaching the preset weight, the material bucket turntable 223 rotates and swaps the positions of the second material bucket 222 and the first material bucket 221. The second material bucket 222 is lifted to the B2 station by the corresponding side drive sprocket 229. The transfer device 240 then transfers the first material bucket 221 to the top of the drying device 28.

[0117] The drying device 28 dries the powder using existing technology. Its bottom is connected to a horizontal material cylinder tube, inside which a spiral rod is rotatably connected. The spiral rod is driven to rotate by a stirring motor, which is also a cycloidal hydraulic motor connected to a hydraulic system. The lower part of the material cylinder tube is connected to a discharge port 281 and a residual material overflow port 282. The discharge port 281 is connected to the powder plasticizing unit 3 via the material pipe. Residual material overflows from the residual material overflow port 282. As the stirring motor rotates forward, the powder is pushed by the screw 43 out of the discharge port 281 and into the powder plasticizing unit 3. When the stirring motor rotates in reverse, residual material overflows from the residual material overflow port 282, achieving rapid cleaning of residual material and preventing material residue from affecting subsequent processes or causing equipment blockage. A viewing window is provided at the front of the drying device 28 for observing the powder's condition.

[0118] like Figures 11-12 As shown, the heated conveying hopper 30 is inclined to facilitate powder conveying. A spiral stirring shaft 31 is installed inside the heated conveying hopper 30, driven by a hopper stirring motor 32. The hopper stirring motor 32 operates at a speed of 10-500 RPM. Through continuous rotation, the spiral stirring shaft 31 constantly tumbles, lifts, and scatters the powder in the central area of ​​the heated conveying hopper 30 to the surrounding area, while simultaneously bringing powder from the surrounding area into the center. This process achieves intense powder convection, effectively breaking down "bridging" and "rat hole" phenomena that may occur due to electrostatic forces, and preventing powder from accumulating and agglomerating at the bottom and corners of the heated conveying hopper 30. This ensures smooth and continuous downstream conveying of powder materials, avoiding production interruptions, and ensuring that the effective volume of the heated conveying hopper 30 is fully utilized. By controlling the rotational speed of the spiral stirring shaft 31, the average residence time and discharge rate of the powder in the heated conveying hopper 30 can be precisely controlled. Its precise control of the plasticizing process provides stable and adjustable heating time for the powder, ensuring that it reaches the optimal plasticizing state, neither underheating nor decomposing due to overheating. Providing stable and uniform feeding to the downstream plasticizing extrusion unit 4 is the foundation for ensuring the continuous and stable operation of the entire production line. The heating conveying hopper 30 is heated by oil and is equipped with a temperature detection sensor for monitoring. The heating temperature is 50-200℃, and in this embodiment it is 70-90℃. Heating can be stopped after the set temperature is reached. The discharge valve 33 adopts existing technology. After the external control system receives the signal that the temperature has reached the predetermined heating temperature, the discharge valve 33 opens, conveying the plasticized powder (plasticized material) to the plasticizing extrusion unit 4. The plasticizing extrusion unit 4 includes an insulated material tank 40, which serves as an intermediate buffer and constant temperature container. Its inlet receives the plasticized material from the heating conveying hopper 30 through a transition channel.

[0119] For example, such as Figure 13As shown, the insulated material tank 40 adopts a double-layer jacket structure or an external heating jacket / belt structure, with internal insulation material and integrated heating elements (such as electric heating tubes) and temperature sensors. This design ensures that the plasticized material remains within its optimal temperature range required by the process while waiting to be filled, preventing increased viscosity, decreased flowability, or even solidification and blockage due to temperature drop. An auxiliary conveying motor is installed at the inlet of the insulated material hopper 40. This motor assists in conveying the plasticized material. The auxiliary conveying motor is connected to the hydraulic system and operates synchronously with the opening and closing of the discharge valve 33. An insulated material hopper agitator 45 and a temperature sensor are installed on the hopper lid. The agitator 45 extends into the insulated material hopper 40 via an agitator shaft to agitate the plasticized material. During agitation, forced convection ensures continuous flow of the plasticized material, thoroughly mixing the hot plasticized material in the center of the hopper with the cold plasticized material in the wall area, eliminating temperature gradients and ensuring a highly uniform temperature field throughout the hopper. The temperature sensor detects the temperature of the insulated material hopper 40, which is preset to 60-90℃ and can be adjusted according to the process. A filling pipe 41 is connected to the bottom outlet of the insulated material hopper 40. The plasticized material is extruded into the hopper through this filling pipe 41.

[0120] The insulating material hopper 40 is funnel-shaped, and a funnel mounting base 44 is connected to the bottom of the insulating material hopper 40. The funnel mounting base 44 is fixed to one end of the extruder base 421. An extrusion motor 42 is arranged on one side of the funnel mounting base 44. The extrusion motor 42 is preferably a hydraulic cycloidal motor, which can provide precise rotational motion and torque. The output shaft of the extrusion motor 42 is connected to the driving synchronous pulley, and then connected to the driven synchronous pulley through the synchronous belt. The shaft of the driven synchronous pulley passes through one end of the drive shaft, and the other end of the drive shaft is located inside the extrusion motor mounting base 422. Tapered roller bearings are fixed on the front and rear sides of the extrusion motor mounting base 422. The drive shaft is rotatably supported in the extrusion motor mounting base 422 by means of the tapered roller bearings, so that the drive shaft rotates under the drive of the extrusion motor 42. After the drive shaft passes through the extrusion motor mounting base 422, it is connected to the screw 43. The funnel mounting base 44 has front and rear adapter sleeves fixed on the left and right sides respectively. The screw 43 passes through the front and rear adapter sleeves and is spirally connected to the funnel mounting base 44. After passing through the funnel mounting base 44, the screw 43 is spirally connected to the inside of the filling tube 41.

[0121] To ensure the stability between the extrusion motor mounting base 422 and the funnel mounting base 44, a fixing screw 47 is threadedly connected between the extrusion motor mounting base 422 and the funnel mounting base 44.

[0122] The filling tube 41 is fixed on the rear adapter sleeve, ensuring that the screw 43 and the filling tube 41 are installed concentrically. The extrusion motor 42 is installed on the side of the extrusion motor mounting base 422. The extrusion motor mounting base 422 slides on the extruder base 421 through the first guide rail pair. A gear and rack mechanism is also provided on the lower side of the extrusion motor mounting base 422 to manually drive the extrusion motor mounting base 422 to move forward or backward. A gear mounting bracket is installed on one side of the extrusion motor mounting base 422. A handwheel 46 is fixedly connected to the side of the gear mounting bracket away from the extruder base 421. A second cylindrical gear is provided in the gear mounting bracket. The second cylindrical gear meshes with a rack. The rack is fixed on one side of the extruder base 421. When the screw 43 needs to be replaced, the handwheel 46 can be manually rotated to move the extrusion motor mounting base 422 away from the heat preservation tank 40, so that the screw 43 can be repaired or replaced.

[0123] In this embodiment, we continue to refer to... Figure 13 From the feed end to the discharge end of the funnel mounting seat 44, the screw groove volume of screw 43 gradually decreases, and the pressure of the plasticized material gradually increases during the conveying process, which can stably establish the extrusion or molding pressure after plasticization. This ensures uniform flow rate and improves the dimensional accuracy and consistency of the product.

[0124] When the extrusion motor 42 drives the screw 43 to rotate, the screw blades of the screw 43 will generate strong shearing and extrusion forces on the plasticized material, pushing the plasticized material from the insulated hopper 40 and pressing it into the shell.

[0125] The extrusion motor 42, auxiliary conveying motor, and insulated hopper agitator motor 45 are all hydraulic motors, and their speeds are precisely controlled by a control system. Alternatively, servo motors can be used; by controlling the number of rotations of the servo motor, the output volume of plasticized material can be precisely controlled, thus achieving constant-volume precision filling. The insulated hopper agitator motor 45 and extrusion motor 42 operate synchronously; the operating speed is 10-500 RPM.

[0126] The filling tube 41 is spirally connected to the inside of the shell. The shell is equipped with a device for fixing the shell at the corresponding position of the conveying unit 5 and the filling tube 41. There are no restrictions on this, as long as it can fix the shell. After the shell is filled with plastic, the shell is then conveyed by the conveying unit 5. The conveying unit 5 extends in the z direction, specifically from the ground floor to the bottom of the third support platform. The conveying unit 5 is a linear guide mechanism, or it can be a slide rail pair, linear bearing, or other mechanism that can achieve precise linear motion.

[0127] Specifically, the conveying unit 5 includes a frame, on which a linear guide rail is provided, and a carrier for supporting the housing is fixedly installed on the slider of the linear guide rail; the conveying unit 5 is also connected to a driving device (such as a cylinder, electric push rod or lead screw driven by a servo motor) for driving the carrier to perform step-by-step reciprocating motion along the linear guide rail.

[0128] After the plasticized material is filled into the shell, it is transported to the end of the conveying unit 5 to enter the next process.

[0129] The control method, operating speed, and operating limit positions of each component of the entire system can all be programmed by those skilled in the art.

[0130] The entire production process of the device is as follows:

[0131] S1: Powder feeding unit 1 lifts the powder from the ground floor to the second support platform.

[0132] S2: Pour the powder into the powder vibrating sieve device 20. The powder vibrating sieve device 20 sieves the powder that meets the requirements and conveys it to the powder metering device 21 from the second sieve layer outlet.

[0133] S3: The first material bucket 221 and the second material bucket 222 in the dual-workstation transfer device 220 alternately lift the metered powder from the powder metering device 21 to the transfer device 240, and the transfer device 240 alternately transfers the first material bucket 221 and the second material bucket 222 to the top of the drying device 28 for unloading.

[0134] S4: After the drying device 28 processes the powder, it conveys the powder to the heating conveying hopper 30 for heating. The heating conveying hopper 30 heats the powder to the set temperature.

[0135] S5: The insulated material hopper 40 receives plasticized material from the heated conveying hopper 30 through the transition channel;

[0136] S6: The insulated material barrel 40 uses the screw 43 to spirally push and press the plasticized material from the insulated material barrel 40 into the shell;

[0137] S7: The housing is conveyed by conveyor unit 5 into the next process.

[0138] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fully automatic powder plasticizing production line, characterized in that, include: Powder feeding unit (1): includes a powder elevator for conveying powder from a first height to a second height; The powder pretreatment unit (2) includes: a powder vibrating sieve device (20) set at the third height, the powder vibrating sieve device (20) being used to receive the powder poured in at the second height and sieve the powder that meets the requirements; and a powder metering device (21) being used to accurately measure the sieved powder to achieve a preset weight value. The transfer device (22) includes a dual-workstation transfer device (220), a material bucket, and a transfer device (240). The material bucket includes a first material bucket (221) and a second material bucket (222). The dual-workstation transfer device (220) is used to transfer the metered powder from a third height to a fourth height, and drives the first material bucket (221) or the second material bucket (222) to alternately receive the powder below the powder vibrating screen device (20). The transfer device (240) transfers the first material bucket (221) / second material bucket (222) to the unloading station to release the powder. The unloading station is equipped with an unloading device (26). A drying device (28), connected to the unloading device (26), is used to receive the released powder and perform drying treatment; Powder plasticizing unit (3): Located at the fifth height and connected to the drying device (28), including a heated conveying hopper (30) and a discharge valve (33), wherein the discharge valve (33) is located at the outlet of the heated conveying hopper (30); Plasticizing extrusion unit (4): Located at the first height and connected to the outlet of the heated conveying hopper (30), it is used to fill the plasticized powder into the shell to form a shell component, including an insulated material tank (40), a filling pipe (41), an extrusion motor (42), a screw (43), and an extruder base (421). The insulated material tank (40) is located at one end of the extruder base (421), and the extrusion motor (42) is located at the top of the extruder base (421). The extrusion motor (42) drives the screw (43) to rotate inside the filling pipe (41). The heat-insulating material barrel (40) is funnel-shaped and fixed to the front end of the extruder base (421) by a funnel mounting base (44). The screw (43) passes through the funnel mounting base (44) and the bottom of the heat-insulating material barrel (40) and is spirally connected to the output end of the extrusion motor (42). The extrusion motor (42) is configured to drive the screw (43) to rotate inside the filling tube (41). A gear and rack mechanism is also provided on one side of the lower part of the extrusion motor mounting base (422) to manually drive the extrusion motor mounting base (422) to move forward or backward. The gear and rack mechanism is driven by rotating the handwheel (46). The screw (43) has a gradually decreasing screw groove volume from the feed end to the discharge end; The first material bucket (221) has a bottom cover (2215) at its opening. The bottom edge of the bottom cover (2215) has an installation groove, and a bracket is installed on the installation groove. A discharge port composed of multiple valve discs (2216) is rotatably connected to the bracket. The multiple valve discs (2216) are distributed circumferentially along the discharge port. The edges of adjacent valve discs (2216) can fit together to form a sealing fit to close the discharge port. A valve handle (2217) is provided at the other end of the multiple valve discs (2216). The valve handle (2217) extends out of the bottom of the bottom cover (2215). A pressure cap (2218) is provided on the lower periphery of the bottom cover (2215). An elastic element (2219) is provided on the upper part of the pressure cap (2218). A gripping block (2224) is fixed on the outer wall of the first material bucket (221). Multiple gripping shafts (2225) are transversely inserted through the gripping block (2224). Multiple valve handles (2217) are connected to the unloading device (26) in a driven linkage. The unloading device (26) includes an unloading mounting base (260), on which a feeding barrel opening (261) is connected. The feeding barrel opening (261) is slidably connected to a docking device, which includes a ring-shaped interface (264), a docking plate (266), and a ring-shaped discharge port (267) arranged sequentially from top to bottom. The top of the ring-shaped interface (264) is provided with multiple grooves (267). 5) The groove (265) corresponds to the valve handle (2217). The unloading mounting base (260) is also provided with a guide rod (262) and a thin cylinder (263). The guide rod (262) is arranged circumferentially around the annular column discharge port (267). The guide rod (262) is slidably connected to the docking plate (266). The output end of the thin cylinder (263) is connected to the docking plate (266). The feeding barrel port (261) is connected to the inlet of the drying device (28).

2. A fully automatic powder plasticizing production line according to claim 1, characterized in that, The dual-work displacement device (220) includes a base, on which a material barrel rotating disk assembly is mounted. The material barrel rotating disk assembly includes a material barrel rotating disk (223), and a column (224) is mounted above the material barrel rotating disk (223). The material barrel rotating disk (223) can drive the column (224) to rotate in both directions. A pair of vertical slide rails (225) are respectively mounted on opposite sides of the column (224). A transition plate (226) is slidably connected to the pair of vertical slide rails (225). The transition plate (226) is provided with... A material bucket clamping frame (227) is provided. A sprocket base (228) is connected above the material bucket clamping frame (227) and the transition plate (226). A transmission sprocket (229) is connected above the sprocket base (228). A bearing mounting plate (230) is provided on the top of the column (224). A hydraulic motor (231) is installed on the bearing mounting plate (230). The output end of the hydraulic motor (231) meshes with the transmission sprocket (229). A counterweight plate (232) is fixedly connected to the other end of the transmission sprocket (229).

3. A fully automatic powder plasticating line according to claim 2, characterized in that, The material bucket clamping frame (227) is adapted to the size of the first material bucket (221) / second material bucket (222). The first material bucket (221) and the second material bucket (222) have the same structure. The lid of the first material bucket (221) has a material bucket inlet (2214) that runs through it. One end of the material bucket inlet (2214) is a circular hole, and the other end is a long strip hole. A swing-type end cap (2210) is provided on the material bucket inlet (2214) to correspond to it. The swing-type end cap (2210) 210) The outer diameter is larger than the circular hole at the inlet (2214) of the material bucket. One end of the swing-type end cap (2210) is connected to a swing arm (2211). The swing arm (2211) corresponds to the elongated hole. The middle part of the swing arm (2211) is hinged to the swing arm bracket (2212) through a rotating shaft and can swing up and down around the rotating shaft. The swing arm bracket (2212) is fixedly connected to the bucket cover. The other end of the swing arm (2211) is provided with a swing arm counterweight (2213).

4. A fully automatic powder plasticating line according to claim 1, characterized in that, The transplanting device (240) includes a transplanting base (241), which moves laterally and reciprocally via a guide rail pair. A transplanting column is fixedly installed on one side of the top of the transplanting base (241), and a screw-driven linear module is installed on the front side of the transplanting column. A gripping mechanism is installed at the front end of the screw-driven linear module, and the gripping mechanism is configured to clamp and release the material bucket. The guide rail pair includes a transverse drive mechanism and a transverse slide rail. The output end of the transverse drive mechanism is connected to the transplanting base (241), and the transplanting base (241) is slidably mounted on the transverse slide rail. The lead screw drive linear module includes: a lifting motor (242), which is located at the top of the transplanting column; The longitudinal drive mechanism includes a lead screw driven by the lifting motor (242), a transmission plate that forms a helical transmission pair with the lead screw, and a vertical slide rail fixed to the transplanting column; The transmission plate is slidably connected to the vertical slide rail, and the lifting motor (242) drives the transmission plate to perform linear reciprocating motion along the longitudinal direction.

5. A fully automatic powder plasticating line according to claim 4, characterized in that, The gripping mechanism includes: a gripping mounting plate (247) fixedly mounted on the front side of the transmission plate; a set of transplanting gripping blocks (243) slidably connected to the front side of the gripping mounting plate (247) via a first slide rail; and a gripping motor (245) for driving the set of transplanting gripping blocks (243) to move closer or further away from each other along the first slide rail to achieve gripping and releasing of the material bucket; wherein, the opposite ends of the transplanting gripping blocks (243) are provided with self-lubricating sleeves (246), and the self-lubricating sleeves (246) are configured to accommodate and support the gripping shaft (2225) on the material bucket.

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