Adaptive speed control de-bagging conveying process

Abstract

The adaptive speed regulation unpacking conveying process comprises the following steps: a conveying line mechanism conveys bagged materials to a feeding box; a control motor drives an output shaft of a speed regulation assembly to drive a cutting blade assembly to cut the bagged materials; when a torque sensor detects that the torque is less than a torque preset value, the cutting blade assembly cuts at high speed and low torque; when the torque sensor detects that the torque is greater than the torque preset value, the cutting blade assembly cuts at high torque and low speed; the rotation direction of the output shaft of the speed regulation assembly remains unchanged; the cut materials enter a drum screen mechanism to be screened into powder materials and waste materials, the powder materials enter a vibrating discharge mechanism to be discharged, and the waste materials enter a crushed material conveying mechanism to be discharged. The adaptive control adjusts the cutting torque to break up the clumps and waste materials, avoids the cutting blade assembly from being stuck and shutdown, improves the reliability and safety of operation, and thus realizes full automation.

Description

Technical Field

[0001] This disclosure relates to the technical field of intelligent conveying equipment, and in particular to an adaptive speed-regulating unpacking and conveying process. Background Technology

[0002] The roller-type unpacking machine is a mechanical unpacking machine with a fixed rotation speed. The unpacking machine is usually composed of a conveyor, a rotating cutting blade and a screening mechanism. The cutting blade is driven by a motor with constant power and speed to perform bag-breaking operations on bagged materials.

[0003] Due to variations in the thickness of packaging materials and the degree of clumping within bagged materials, the fixed-speed motor is prone to jamming, blade wear, or even motor burnout when encountering high-strength packaging or hard internal clumps. This results in poor reliability of the unpacking machine, requiring frequent shutdowns for maintenance. The single cutting mode struggles to balance cutting efficiency with the ability to handle abnormal conditions, leading to low adaptability and intelligence levels in the overall unpacking process, making it impossible to achieve efficient, stable, and reliable fully automated unpacking operations.

[0004] For example, the prior art document CN202323369734.0 discloses a powder bag unpacking machine, which includes a lifting support, a pulling rod, a pulling pneumatic rod, a frame, a conical discharge port, a powder bag outlet, a cylindrical roller structure, a hollow roller, a dust removal electric fan, a roller cutter wheel drive, a dust removal isolation plate, a roller cutter structure, a conical suction chamber, a power transmission belt, a conical discharge port fixing component, and a frame outer shell plate. This solution does not address the problem that during the cutting process, when the bagged material clumps or the material resistance is high, the cutting blade is prone to jamming and the machine stops, requiring manual cleaning to continue production. This can lead to overload and damage to the drive motor and affect automated production. Summary of the Invention

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide an adaptive speed-regulating unpacking and conveying process that automatically adjusts torque to cut materials and break up agglomerates to avoid jamming.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] An adaptive speed-regulating unpacking and conveying process employs an adaptive speed-regulating unpacking and conveying system. This system includes a transport line mechanism, a cutting mechanism, a drum screen mechanism, a vibrating discharge mechanism, and a crushed material conveying mechanism. The cutting mechanism includes a feed hopper, a cutting blade assembly, a control motor, a speed regulating component, and a torque sensor. The feed end of the feed hopper is connected to the transport line mechanism, and the feed end of the drum screen mechanism is connected to the discharge end of the feed hopper. The control motor and the speed regulating component are fixed to the drum screen mechanism, and the cutting blade assembly is disposed on... The feed box is connected to the output shaft of the speed regulating component. The speed regulating component has a unidirectional transmission structure, so that the output shaft of the speed regulating component rotates in one direction. The speed regulating component is used to control the rotational speed and cutting torque of the cutting blade assembly. The torque sensor is installed in series between the output end of the control motor and the speed regulating component, and the torque sensor is electrically connected to the control motor. A powder outlet and a waste outlet are provided below the drum screen mechanism. The vibrating discharge mechanism is connected to the powder outlet, and the crushed material conveying mechanism is connected to the waste outlet.

[0008] The adaptive speed-regulating unpacking and conveying process includes the following steps:

[0009] The transport line mechanism conveys bagged materials to the feed box;

[0010] The control motor drives the output shaft of the speed regulation component to drive the cutting blade assembly to cut the bagged material;

[0011] The torque sensor detects whether the torque is less than a preset torque value. When the torque sensor detects that the torque is less than the preset torque value, the control motor drives the speed regulating component in a first direction. The output shaft of the speed regulating component drives the cutting blade assembly to perform high-speed, low-torque cutting at a first rotational speed and a first torque. When the torque sensor detects that the torque is greater than the preset torque value, the control motor drives the speed regulating component in a second direction. The output shaft of the speed regulating component drives the cutting blade assembly to perform high-torque, low-speed cutting at a second rotational speed and a second torque. Wherein, the second torque is greater than the first torque, the second rotational speed is less than the first rotational speed, and the rotation direction of the output shaft of the speed regulating component remains unchanged.

[0012] The cut material enters the drum screen mechanism for screening into powder and waste;

[0013] The powder material is discharged through the vibrating discharge mechanism, and the waste material is discharged through the crushing conveyor mechanism.

[0014] In one embodiment, the speed regulating component includes a drive bearing, a first transmission gear, a drive gear, a first one-way rotating gear, an output gear, a second transmission gear, and a second one-way rotating gear. The drive bearing is connected to the output end of the control motor. The first transmission gear is rotatably mounted on the drive bearing, and the first one-way rotating gear and the drive gear are fixedly mounted on the drive bearing. The output gear and the second one-way rotating gear are fixedly mounted on the output shaft, and the second transmission gear is rotatably mounted on the output shaft. The drive gear drives the output gear to mesh, and the first one-way rotating gear drives the output shaft to rotate in the forward direction. The first one-way rotating gear meshes with the external teeth of the second transmission gear, the internal teeth of the second transmission gear mesh with the external teeth of the first transmission gear, and the internal teeth of the first transmission gear mesh with the output gear.

[0015] In one embodiment, the control motor drives the speed regulating component in a first direction, and the output shaft of the speed regulating component drives the cutting blade assembly to perform high-speed, low-torque cutting at a first rotational speed and a first torque, including the following steps:

[0016] The control motor rotates forward along the first direction, and the control motor drives the drive bearing to rotate;

[0017] The drive bearing drives the fixed drive gear to rotate, and the drive gear directly meshes with the second one-way rotating gear, which transmits power to the output shaft.

[0018] The output shaft cuts the bagged material at a low torque and high speed with a first rotational speed and a first torque.

[0019] In one embodiment, the control motor drives the speed regulating component in a second direction, and the output shaft of the speed regulating component drives the cutting blade assembly to perform high-torque, low-speed cutting at a second rotational speed and a second torque, including the following steps:

[0020] The control motor rotates in reverse along the second direction, and the control motor drives the drive bearing to rotate.

[0021] The first unidirectional rotating gear rotates, driving the outer teeth of the first transmission gear; the inner teeth of the first transmission gear drive the outer teeth of the second transmission gear; the inner teeth of the second transmission gear drive the output gear to rotate; and the rotation of the output gear drives the output shaft to rotate.

[0022] The output shaft drives the cutting blade assembly to cut the bagged material at a second rotational speed and a second torque.

[0023] In one embodiment, the ratio of the first torque to the second torque of the speed regulating component is 1:4 to 1:8.

[0024] In one embodiment, the first rotational speed is 800 r / min-1000 r / min, the second rotational speed is 125 r / min-250 r / min, the preset torque value is 11 N·m-20 N·m, and the power of the control motor is 0.8 kW-1.2 kW.

[0025] In one embodiment, the cutting blade assembly includes a rotating shaft, a drive belt, a blade baffle, and a cutting blade. The rotating shaft is rotatably disposed within the feed box, the blade baffle is fixed to the feed box, the blade baffle has a clearance groove, the cutting blade is disposed in the clearance groove, the cutting blade is fixed to the rotating shaft, and the drive belt is respectively sleeved on the rotating shaft and the output shaft of the speed regulating component.

[0026] In one embodiment, the rotary screen mechanism includes a rotary screen, a drum box, a drive roller, a rolling shaft, and a rotary motor. The drum box has a powder outlet at its bottom and a waste outlet at one end of the rotary screen. The rotary motor is mounted on the drum box, and the rolling shaft is connected to the output end of the rotary motor. The rolling shaft is rotatably mounted on the drum box, and the rotary screen is mounted on the rolling shaft. The rolling shaft is used to drive the rotary screen to rotate.

[0027] In one embodiment, the vibrating discharge mechanism includes a vibrating motor, a vibrating disk assembly, a support frame, and elastic elements. The vibrating disk assembly is disposed below the powder outlet, the vibrating motor is fixed to the vibrating disk assembly, and there are multiple elastic elements. The support frame and the vibrating disk assembly are connected by multiple elastic elements.

[0028] In one embodiment, the scrap conveying mechanism includes a screw pusher, a conveying box, and a conveying motor. The inlet of the conveying box is connected to the waste outlet. The screw pusher is installed inside the conveying box and is connected to the rotation output end of the conveying motor.

[0029] Compared with the prior art, this disclosure has at least the following advantages:

[0030] The aforementioned adaptive speed-regulating unpacking and conveying process involves an adaptive speed-regulating unpacking system that monitors resistance changes in real time during the cutting process and intelligently adjusts the cutting mode. During normal operation, it maintains a high-speed, low-torque operating state, achieving rapid and efficient bag-breaking. When the detected torque exceeds the preset value, the control motor immediately reverses and automatically switches to a low-speed, high-torque mode, thus smoothly breaking up clumps and shredding packaging bags. This avoids cutting jams, blade breakage, and motor burnout, enhancing the ability to handle complex materials while protecting the cutting blade assembly and control motor, extending their service life. By introducing an intelligent adaptive control working mode, it efficiently handles different types of packaging bags. Through multi-stage processing including cutting, drum screening, and vibratory discharge, powder and packaging waste are completely separated. The unpacking process requires no manual intervention, enabling highly efficient, reliable, safe, and high-quality fully intelligent production. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a flowchart illustrating the steps of an adaptive speed-regulating unpacking and conveying process according to one embodiment.

[0033] Figure 2 This is a schematic diagram of the structure of an adaptive speed-regulating unpacking and conveying system according to one embodiment;

[0034] Figure 3 for Figure 2 A partial cross-sectional view of the adaptive speed-regulating unpacking and conveying system shown.

[0035] Figure 4 for Figure 2 The diagram shows the structure of the cutting mechanism in the adaptive speed-regulating unpacking and conveying system.

[0036] Figure 5 for Figure 4 The diagram shows the structure of the speed control component of the cutting mechanism.

[0037] Figure 6 for Figure 2 The diagram shows a partial structure of the adaptive speed-regulating unpacking and conveying system.

[0038] Figure 7 for Figure 2 Another partial structural diagram of the adaptive speed-regulating unpacking and conveying system is shown;

[0039] Figure 8 for Figure 2 The diagram shows a partial exploded view of the adaptive speed-regulating unpacking and conveying system.

[0040] Reference numerals: 10-Adaptive speed control unpacking system; 100-Conveyor line mechanism; 200-Cutting mechanism; 210-Feed box; 220-Cutting blade assembly; 221-Rotating shaft; 222-Drive belt; 223-Blade baffle; 224-Cutting blade; 230-Control motor; 240-Speed ​​control component; 241-Output shaft; 242-Drive bearing; 243-First transmission gear; 244-Drive gear; 245-First one-way rotation gear; 246-Output gear; 247-Second transmission gear; 248-Second one-way rotation gear; 250-Torque sensor; 260-Feed roller assembly; 261-Auxiliary motor; 262-Push plate sleeve; 263-Feed roller shaft; 300-Roller Screening mechanism; 310-Drum screen; 320-Drum box; 301-Powder outlet; 302-Waste outlet; 330-Rolling shaft; 340-Drum motor; 350-Drive roller; 360-Transmission chain; 370-Tensioning assembly; 371-Tensioning bracket; 372-Tensioning wheel; 400-Vibrating discharge mechanism; 410-Vibrating motor; 420-Vibrating disc; 421-Vibrating disc body; 422-Vibrating screen; 430-Support frame; 440-Elastic element; 500-Scrap material conveying mechanism; 510-Screw pusher; 520-Conveying box; 530-Conveying motor; 600-Dust removal mechanism; 610-Dust removal box; 620-Backflush air manifold; 630-Filter cartridge; 640-Backflush pipe; 650-Fan. Detailed Implementation

[0041] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0042] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0045] Please see Figures 1 to 4 As shown, this is an embodiment of the adaptive speed-regulating unpacking and conveying process of the present invention. An adaptive speed-regulating unpacking system 10 is used for unpacking and conveying. The adaptive speed-regulating unpacking system 10 includes a transport line mechanism 100, a cutting mechanism 200, a drum screen mechanism 300, a vibrating discharge mechanism 400, and a crushed material conveying mechanism 500. The cutting mechanism 200 includes a feed box 210, a cutting blade assembly 220, a control motor 230, a speed regulating component 240, and a torque sensor 250. The feed end of the feed box 210 is connected to the transport line mechanism 100, and the feed end of the drum screen mechanism 300 is connected to the discharge end of the feed box 210. The control motor 230 and the speed regulating component 240 are fixed to the drum screen mechanism 300. The cutting blade assembly 220 is disposed inside the feed box 210 and connected to the discharge end of the drum screen mechanism 300. The output shaft 241 of the speed regulating component 240 is driven and connected. The speed regulating component 240 has a unidirectional transmission structure, so that the output shaft 241 of the speed regulating component 240 rotates in one direction. The speed regulating component 240 is used to control the rotational speed and cutting torque of the cutting blade assembly 220. The torque sensor 250 is installed in series between the output end of the control motor 230 and the speed regulating component 240. The torque sensor 250 is connected to the output end of the control motor 230 and the speed regulating component 240 through a coupling. The torque sensor 250 is electrically connected to the control motor 230. A powder outlet 301 and a waste outlet 302 are provided below the drum screen mechanism 300. The vibrating discharge mechanism 400 is connected to the powder outlet 301, and the crushed material conveying mechanism 500 is connected to the waste outlet 302.

[0046] Furthermore, the adaptive speed-regulating unpacking and conveying process includes the following steps:

[0047] S101 The transport line mechanism 100 conveys the bagged materials to the feed box 210;

[0048] S103 The control motor 230 drives the output shaft 241 of the speed regulating component 240 to drive the cutting blade assembly 220 to cut the bagged material;

[0049] S105 detects whether the torque is less than a preset torque value using a torque sensor 250. When the torque sensor 250 detects that the torque is less than the preset torque value, the control motor 230 drives the speed regulating component 240 in a first direction. The output shaft 241 of the speed regulating component 240 drives the cutting blade assembly 220 to perform high-speed, low-torque cutting at a first rotational speed and a first torque. When the torque sensor 250 detects that the torque is greater than the preset torque value, the control motor 230 reverses direction to drive the speed regulating component 240 in a second direction. The output shaft 241 of the speed regulating component 240 drives the cutting blade assembly 220 to perform high-torque, low-speed cutting at a second rotational speed and a second torque. Wherein, the second torque is greater than the first torque, the second rotational speed is less than the first rotational speed, and the rotational direction of the output shaft of the speed regulating component remains unchanged. The rotational direction of the output shaft 241 of the speed regulating component 240 also remains unchanged.

[0050] After being cut by S107, the material enters the drum screen mechanism 300 for screening into powder and waste.

[0051] The powder material described in S109 enters the vibrating discharge mechanism 400 for discharge, and the waste material enters the crushing conveying mechanism 500 for discharge.

[0052] In this embodiment, the torque sensor detects the torsional torque on rotating mechanical components. This converts the physical change in torque into a precise electrical signal, and it can also be used to detect rotational speed. When the torque sensor 250 detects whether the torque is less than a preset value, and when the torque sensor 250 detects that the torque equals the preset value, the control motor 230 reverses to drive the speed regulating component 240 in a second direction. The output shaft 241 of the speed regulating component 240 drives the cutting blade assembly 220 to perform high-torque, low-speed cutting at a second rotational speed and a second torque, ensuring that the material is broken and preventing jamming. The control motor 230 drives the speed regulating component 240, and the output shaft 241 of the speed regulating component 240 drives the cutting blade assembly 220 to cut the bagged material. When the torque detected by the torque sensor 250 is less than the preset value, the torque sensor 250 will... The signal is transmitted to the control motor 230. The system determines that the cutting is normal, and the control motor 230 rotates forward in the first direction. The output shaft 241 adopts a high speed and low torque mode for efficient cutting. When the torque detected by the torque sensor 250 is greater than the preset value, the torque sensor 250 transmits an electrical signal to the control motor 230. The system determines that it has encountered agglomerated materials or packaging tape. The control motor 230 reverses in the second direction, so that the output shaft 241 of the speed regulating component 240 adopts a low speed and high torque mode. The cutting blade assembly 220 breaks the obstacles with greater torque to prevent the equipment from being overloaded and damaged. The forward and reverse switching and speed and torque are adjusted based on real-time torque monitoring.

[0053] The aforementioned adaptive speed-regulating unpacking and conveying process, with the adaptive speed-regulating unpacking system 10 monitoring resistance changes in real time during the cutting process and intelligently adjusting the cutting mode, maintains a high-speed, low-torque operating state during normal operation, achieving fast and efficient bag breaking. When the torque exceeds the preset value, the control motor 230 immediately reverses and automatically switches to a low-speed, high-torque mode, thus smoothly breaking up clumps and shredding packaging bags, avoiding malfunctions such as cutting jams, blade breakage, and motor burnout, enhancing the ability to handle complex materials, while protecting the cutting blade assembly and control motor, and extending their service life. By introducing an intelligent adaptive control working mode, different types of packaging bags can be processed efficiently. Through multi-stage processing of cutting, drum screening, and vibration discharge, powder and packaging waste are completely separated. The unpacking process does not require manual intervention, enabling the unpacking process to achieve efficient, reliable, safe, and high-quality fully intelligent production.

[0054] like Figure 4 and Figure 5 As shown, in one embodiment, the speed regulating component 240 includes a drive bearing 242, a first transmission gear 243, a drive gear 244, a first one-way rotating gear 245, an output gear 246, a second transmission gear 247, and a second one-way rotating gear 248. The drive bearing 242 is connected to the output end of the control motor 230. The first transmission gear 243 is rotatably mounted on the drive bearing 242. The first one-way rotating gear 245 and the drive gear 244 are fixedly mounted on the drive bearing 242. The output gear 246 and the second one-way rotating gear 247 are also fixedly mounted on the drive bearing 242. A one-way rotating gear 248 is fixedly mounted on the output shaft 241, and a second transmission gear 247 is rotatably mounted on the output shaft 241. The drive gear 244 drives the second one-way rotating gear 248 to mesh, and the first one-way rotating gear 245 drives the output shaft 241 to rotate in the forward direction. The first one-way rotating gear 245 meshes with the external teeth of the second transmission gear 247, the internal teeth of the second transmission gear 247 mesh with the external teeth of the first transmission gear 243, and the internal teeth of the first transmission gear 243 mesh with the output gear 246. In this embodiment, the first one-way rotating gear 245 and the second one-way rotating gear 248 are provided with overrunning clutches. The overrunning clutches allow the gears to rotate freely in one direction, while locking them in the opposite direction to transmit torque. The overrunning clutches are used to achieve gear shifting. There is no disengagement or engagement when switching between high and low speeds, avoiding the impact and gear grinding problems caused by gear meshing. The rotation direction of the output shaft 241 remains unchanged. The speed regulation process of the speed regulating component 240 is entirely determined by the mechanical characteristics of the gears and one-way bearings. There is no need for complex electronic sensors and controllers to participate in the judgment and switching, which makes the speed regulation response speed extremely fast and has strong anti-interference and anti-harsh environment capabilities.

[0055] In one embodiment, the control motor 230 drives the speed regulating component 240 in a first direction, and the output shaft 241 of the speed regulating component 240 drives the cutting blade assembly 220 to perform high-speed, low-torque cutting at a first speed and a first torque, including the following steps:

[0056] The control motor 230 rotates in the first direction, and the control motor 230 drives the drive bearing 242 to rotate.

[0057] The drive bearing 242 drives the fixed drive gear 244 to rotate, and the drive gear 244 directly meshes with the second one-way rotating gear 248, which transmits power to the output shaft 241.

[0058] The output shaft 241 cuts bagged materials at a low torque and high speed with a first rotational speed and a first torque. In this embodiment, when efficient cutting is required, power is transmitted through the direct meshing of the drive gear 244 with the second unidirectional rotating gear 248. This optimizes the power transmission path, making the transmission path shorter and minimizing energy loss, thus ensuring efficient transmission and achieving high-speed cutting.

[0059] In one embodiment, the control motor 230 reverses to drive the speed regulating component 240, and the output shaft 241 of the speed regulating component 240 is driven at a second speed in a second direction. The output shaft of the speed regulating component 240 drives the cutting blade assembly 220 to perform high-torque, low-speed cutting at a second speed and a second torque, including the following steps:

[0060] The control motor 230 rotates in reverse along the second direction, and the control motor 230 drives the drive bearing 242 to rotate.

[0061] The first unidirectional rotating gear 245 rotates, driving the external teeth of the first transmission gear 243. The internal teeth of the first transmission gear 243 drive the external teeth of the second transmission gear 247. The internal teeth of the second transmission gear 247 drive the output gear 246 to rotate. The rotation of the output gear 246 drives the output shaft 241 to rotate.

[0062] The output shaft 241 drives the cutting blade assembly 220 to cut the bagged material. In this embodiment, when the control motor 230 reverses in the second direction, the internal overrunning clutch of the second one-way rotating gear 248 is in a slipping state, cutting off the high-speed, low-torque path, and the control motor 230 cannot directly drive the output shaft 241; the first one-way rotating gear 245 meshes and drives the external teeth of the second transmission gear 247, activating the deceleration and torque-increasing path. Through multi-stage gear meshing, the speed is reduced and the torque is increased, thereby significantly amplifying the torque of the output shaft 241. The output shaft 241 drives the cutting blade assembly 220 with huge torque and low speed, forcibly breaking up clumps or cutting the wrapped packaging tape, thereby overcoming obstacles and protecting the equipment. The switching of the power path is completed naturally through the slippage and engagement of the overrunning clutch. The clutch structure that does not require engagement makes the switching process shock-free, smooth, and reliable.

[0063] In one embodiment, the ratio of the first torque to the second torque of the speed regulating component 240 is 1:4 to 1:8. In this embodiment, with a torque ratio of 4 to 8, when the cutting blade component 220 encounters hard lumps or tangled packaging bags, the cutting blade component 220 can generate several times the force to break up the material lumps and packaging bags, thereby avoiding jamming. By adjusting the reduction ratio of each gear, the ratio of the first torque to the second torque can be adjusted, so that the total transmission ratio of the gears of each component is designed to be between 4:1 and 8:1, which can provide a sufficiently large torque increase effect while avoiding the problems of excessively large, complex or inefficient gear structures.

[0064] In one embodiment, the first rotational speed is 800 r / min-1000 r / min, the second rotational speed is 125 r / min-250 r / min, the preset torque value is 11 N·m-20 N·m, and the power of the control motor 230 is 0.8 kW-1.2 kW. In this embodiment, the preset torque value is an adjustable parameter, and the operator can set different sensitivities according to the characteristics of the material being processed, the packaging bag material, and the degree to which the material is prone to clumping. When processing ordinary plastic woven bags, the threshold of the preset torque value is lowered to increase the system sensitivity; when processing materials with harder clumps, the threshold of the preset torque value is raised to avoid excessively frequent switching and improve production efficiency. The first torque is always lower than the lower limit of the preset torque value to ensure the correctness of the system logic and avoid the probability of false triggering. Specifically, the preset torque value is 11 N·m-20 N·m, the preset speed is 1000 r / min, and when the ratio of the first torque to the second torque is 1:8, the first torque is 10.5 N·m, the second speed is 125 r / min, and the second torque is 84 N·m.

[0065] like Figure 4As shown, in one embodiment, the cutting blade assembly 220 includes a rotating shaft 221, a transmission belt 222, a blade baffle 223, and a cutting blade 224. The rotating shaft 221 is rotatably disposed within the feed box 210. The blade baffle 223 is fixed to the feed box 210 and has a recessed groove. The cutting blade 224 is disposed in the recessed groove and fixed to the rotating shaft 221. The transmission belt 222 is respectively sleeved on the rotating shaft 221 and the output shaft 241 of the speed regulating assembly 240. In this embodiment, the blade baffle 223 exposes a portion of the cutting blade 224 through the recessed groove to facilitate contact and cutting of the bagged material. This allows the blade baffle 223 to shield and protect the rotating shaft 221 and the blade, reducing the likelihood of plastic bags entangled on the rotating shaft 221. The blade baffle 223 also guides and presses down on the falling bagged material, ensuring that the bagged material is delivered to the cutting blade 224 for cutting.

[0066] like Figure 4 As shown, in one embodiment, the cutting mechanism 200 further includes a feed roller assembly 260, which includes an auxiliary motor 261, a pusher sleeve 262, and a feed roller shaft 263. The feed roller shaft 263 is rotatably disposed within the feed box 210. The auxiliary motor 261 is fixed to the feed box 210. The feed roller shaft 263 is connected to the output end of the auxiliary motor 261. The feed roller shaft 263 and the rotating shaft 221 are disposed opposite to each other on both sides of the feed box 210. The pusher sleeve 262 is sleeved on the feed roller shaft 263. In this embodiment, the pusher sleeve 262 rotates in coordination with the auxiliary motor 261, allowing the pusher sleeve 262 to smoothly push the bagged material into the cutting area, ensuring that the bagged material maintains a consistent position in contact with the cutting blade, improving the smoothness of feeding and the accuracy of the cutting position, and preventing the material from tilting, accumulating, or getting stuck at the entrance of the feed box 210; the feed roller assembly 260 works in coordination with the main cutting mechanism 200, further reducing the need for manual intervention, enhancing the automation level of the entire process from conveying, sorting, cutting to screening, and making the entire intelligent production unit more coherent and efficient.

[0067] like Figure 6As shown, in one embodiment, the drum screen mechanism 300 includes a drum screen 310, a drum box 320, a rolling shaft 330, and a drum motor 340. The drum box 320 has a powder outlet 301 at its bottom and a waste outlet 302 at one end of the drum screen 310. The drum motor is mounted on the drum box 320, and the rolling shaft 330 is connected to the output end of the drum motor 340. The rolling shaft 330 is rotatably mounted on the drum box 320, and the drum screen 310 is mounted on the rolling shaft 330. The rolling shaft 330 is used to drive the drum screen 310 to rotate. In this embodiment, the cylinder wall of the drum screen 310 is covered with screens of a specific aperture. When the cut mixture rolls inside the drum screen 310, smaller particles fall through the screen holes under gravity. The bottom of the drum box 320 also forms a funnel structure, and the powder outlet 301 is opened at the bottom of the funnel structure. The discharged powder enters the vibrating discharge mechanism 400 after passing through the powder outlet 301. Larger plastic waste is trapped inside the drum screen 310 by the screen. The inner wall of the drum screen 310 is provided with several guide blocks. The guide blocks are used to guide the waste towards the end of the drum screen 310 near the waste outlet 302. During the rotation of the drum screen 310, the waste collides with the guide blocks. The guide blocks continuously guide the waste to the end of the drum screen 310 near the waste outlet 302. The waste enters the crushing conveying mechanism 500 through the waste outlet 302.

[0068] Furthermore, in one embodiment, two rolling shafts 330 are arranged parallel to each other in the drum housing 320. Each rolling shaft 330 is provided with a drive roller 350. The drum screen 310 has an annular limiting groove 3101 circumferentially formed, and a portion of each drive roller 350 is embedded in the annular limiting groove 3101. In this embodiment, the engagement of the drive roller 350 with the annular limiting groove 3101 effectively transmits power and restricts the radial displacement of the drum screen 310 by the annular limiting groove 3101, ensuring the stability and concentricity of the drum screen 310 during the rotational screening process, and making the rotation of the drum screen 310 smooth. The drum screen mechanism 300 also includes a transmission chain 360. One end of each of the two rolling shafts 330 is provided with a gear meshing part, and the transmission chain 360 is sleeved on the two gear meshing parts. By synchronously driving the two rolling shafts 330 and all the drive rollers 350 on them by the chain, the synchronicity and stability of power transmission are ensured, so that the drum screen 310 can obtain a uniform driving force, making the operation of the drum screen 310 more stable and reliable.

[0069] like Figure 6As shown, the drum screen mechanism 300 further includes a tensioning assembly 370, which includes a tensioning bracket 371 and a tensioning wheel 372. The tensioning bracket 371 is fixed to the drum housing 320, and the tensioning wheel 372 is rotatably mounted on the tensioning bracket 371, abutting against the transmission chain 360. In this embodiment, by adjusting the position of the tensioning bracket 371 along the strip-shaped fixing hole, the degree of pressure of the tensioning wheel 372 on the transmission chain 360 can be flexibly adjusted, thereby effectively eliminating the slack of the chain caused by long-term operation, ensuring stable and reliable synchronous operation of the transmission system, and reducing vibration and noise.

[0070] like Figure 7 As shown, in one embodiment, the vibrating discharge mechanism 400 includes a vibrating motor 410, a vibrating disk assembly 420, a support frame 430, and elastic elements 440. The vibrating disk assembly 420 is disposed below the powder outlet 301. The vibrating motor 410 is fixed to the vibrating disk assembly 420. Multiple elastic elements 440 are present, and the support frame 430 is connected to the vibrating disk assembly 420 via these multiple elastic elements 440. In this embodiment, the vibration generated by the vibrating motor 410 causes the vibrating disk assembly 420 to operate under high-frequency, low-amplitude vibration, effectively breaking up any arches or adhesions that may form in the powder, ensuring continuous powder discharge, and improving the powder discharge efficiency and uniformity.

[0071] Furthermore, the vibratory feeder assembly 420 includes a vibratory feeder body 421 and a vibrating screen 422. The vibrating screen 422 divides the vibratory feeder body 421 into a screening chamber and a feeding chamber. The feeding chamber is located below the screening chamber and has a powder feeding port. The screening chamber has a waste feeding port. In this embodiment, the powder initially separated by the drum screen first enters the screening chamber of the vibratory feeder assembly 420 for secondary screening. Driven by the vibrating motor 410, the powder falls through the vibrating screen 422 into the lower feeding chamber and is discharged through the powder feeding port. A small amount of coarse material or impurities that fail to pass through the screen are intercepted by the screen and guided to the waste feeding port for discharge under vibration, thereby achieving further purification and grading of the powder and ensuring the quality of the final output material.

[0072] like Figure 7As shown, in one embodiment, the waste conveying mechanism 500 includes a spiral pusher 510, a conveying box 520, and a conveying motor 530. The inlet of the conveying box 520 is connected to the waste outlet 302. The main body of the spiral pusher 510 is rotatably disposed within the conveying box 520, and the main body of the spiral pusher 510 is provided with spiral blades. The spiral pusher 510 is connected to the rotation output end of the conveying motor 530. In this embodiment, the waste separated by the drum screen 310 falls from the waste outlet 302 into the inlet of the conveying box 520. The conveying motor 530 drives the spiral pusher 510 to rotate, causing the spiral blades to continuously push the waste, conveying the waste axially along the conveying box 520 to the outlet.

[0073] like Figure 8 As shown, further, in one embodiment, the adaptive speed-regulating unpacking and conveying process also includes a dust removal mechanism 600, which is connected to the top of the drum box 320. The dust removal mechanism 600 is used to remove dust generated during the sieving process. The dust removal mechanism 600 includes a dust removal box 610, a back-blowing air manifold 620, a filter cartridge 630, a back-blowing pipe 640, and a fan 650. The dust removal box 610 is connected to the top of the drum box 320, the filter cartridge 630 is disposed inside the dust removal box 610, the two ends of the back-blowing pipe 640 are respectively connected to the back-blowing air manifold 620 and the filter cartridge 630, the fan 650 is connected to the filter cartridge 630, and the back-blowing air manifold 620 is externally connected to an air source. In this embodiment, after the fan 650 starts, a negative pressure is formed in the dust collection box 610. When air passes through the filter cartridge 630, dust is trapped on the outer surface of the filter cartridge 630, allowing clean air to be discharged into the atmosphere, reducing the amount of dust that pollutes the air during the cutting process. The high-pressure gas in the backflush air manifold 620 is instantly injected into the interior of the filter cartridge 630 through the backflush pipe 640, impacting the filter cartridge 630 in the opposite direction and shaking off the dust clumps attached to its exterior.

[0074] Furthermore, when the transport line mechanism 100 conveys the bagged material to the inlet of the cutting mechanism 200, the dust removal mechanism 600 performs a dust removal process, including the following steps:

[0075] When bagged materials enter the feed box 210, the dust removal mechanism 600 is activated and the fan 650 starts running, so that the dust removal box 610 forms a stable negative pressure environment.

[0076] When the cutting blade assembly 220 cuts the bagged material, the dust generated is sucked into the dust collection box 610 through the drum box 320;

[0077] When the dust accumulated on the outside of the filter cartridge 630 reaches a preset time, the back-flushing air manifold 620 is automatically controlled to back-flush the filter cartridge 630, completing the regeneration of the filter cartridge 630. In this embodiment, by creating a stable negative pressure environment at the dust-generating points in the cutting area and the drum box 320, efficient dust collection from the source is achieved, effectively preventing dust overflow, significantly improving the working environment, ensuring the health and safety of operators, and meeting the environmental protection requirements of clean production. The system automatically triggers the back-flushing program according to preset conditions, without manual intervention, reducing the frequency of equipment maintenance and ensuring that the unpacking and conveying system can operate continuously and stably for a long time.

[0078] Compared with the prior art, this disclosure has at least the following advantages:

[0079] The aforementioned adaptive speed-regulating unpacking and conveying process, with the adaptive speed-regulating unpacking system 10 monitoring resistance changes in real time during the cutting process and intelligently adjusting the cutting mode, maintains a high-speed, low-torque operating state during normal operation, achieving fast and efficient bag breaking. When the torque exceeds the preset value, the control motor 230 immediately reverses and automatically switches to a low-speed, high-torque mode, thus smoothly breaking up clumps and shredding packaging bags, avoiding malfunctions such as cutting jams, blade breakage, and motor burnout, enhancing the ability to handle complex materials, while protecting the cutting blade assembly and control motor, and extending their service life. By introducing an intelligent adaptive control working mode, different types of packaging bags can be processed efficiently. Through multi-stage processing of cutting, drum screening, and vibration discharge, powder and packaging waste are completely separated. The unpacking process does not require manual intervention, enabling the unpacking process to achieve efficient, reliable, safe, and high-quality fully intelligent production.

[0080] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An adaptive speed-regulating unpacking and conveying process, characterized in that, An adaptive speed-regulating unpacking and conveying system is used. This system includes a transport line mechanism, a cutting mechanism, a drum screen mechanism, a vibrating discharge mechanism, and a waste material conveying mechanism. The cutting mechanism includes a feed box, a cutting blade assembly, a control motor, a speed regulating component, and a torque sensor. The feed end of the feed box is connected to the transport line mechanism, and the feed end of the drum screen mechanism is connected to the discharge end of the feed box. The control motor and the speed regulating component are fixed to the drum screen mechanism. The cutting blade assembly is disposed inside the feed box and is connected to the output shaft of the speed regulating component. The speed regulating component has a unidirectional transmission structure, allowing its output shaft to rotate in one direction. The speed regulating component controls the rotational speed and cutting torque of the cutting blade assembly. The torque sensor is connected in series between the output end of the control motor and the speed regulating component, and is electrically connected to the control motor. A powder outlet and a waste outlet are located below the drum screen mechanism. The vibrating discharge mechanism is connected to the powder outlet, and the waste material conveying mechanism is connected to the waste outlet. The adaptive speed-regulating unpacking and conveying process includes the following steps: The transport line mechanism conveys bagged materials to the feed box; The control motor drives the output shaft of the speed regulation component to drive the cutting blade assembly to cut the bagged material; The torque sensor detects whether the torque is less than the preset torque value; when the torque sensor detects that the torque is less than the preset torque value, the control motor drives the speed regulating component in the first direction, and the output shaft of the speed regulating component drives the cutting blade assembly to perform high-speed, low-torque cutting with a first speed and a first torque. When the torque sensor detects that the torque is greater than the preset torque value, the control motor drives the speed regulating component in the second direction. The output shaft of the speed regulating component drives the cutting blade assembly to perform high-torque, low-speed cutting at a second rotational speed and a second torque. The second torque is greater than the first torque, the second rotational speed is less than the first rotational speed, and the rotation direction of the output shaft of the speed regulating component remains unchanged. The cut material enters the drum screen mechanism for screening into powder and waste; The powder material is discharged through the vibrating discharge mechanism, and the waste material is discharged through the crushing conveyor mechanism.

2. The adaptive speed-regulating unpacking and conveying process according to claim 1, characterized in that, The speed regulating assembly includes a drive bearing, a first transmission gear, a drive gear, a first one-way rotating gear, an output gear, a second transmission gear, and a second one-way rotating gear. The drive bearing is connected to the output end of the control motor. The first transmission gear is rotatably mounted on the drive bearing, and the first one-way rotating gear and the drive gear are fixedly mounted on the drive bearing. The output gear and the second one-way rotating gear are fixedly mounted on the output shaft, and the second transmission gear is rotatably mounted on the output shaft. The drive gear drives the output gear to mesh, and the first one-way rotating gear drives the output shaft to rotate in the forward direction. The external teeth of the first one-way rotating gear mesh with the external teeth of the second transmission gear, the internal teeth of the second transmission gear mesh with the external teeth of the first transmission gear, and the internal teeth of the first transmission gear mesh with the output gear.

3. The adaptive speed-regulating unpacking and conveying process according to claim 2, characterized in that, The control motor drives the speed regulating component in a first direction, and the output shaft of the speed regulating component drives the cutting blade assembly to perform high-speed, low-torque cutting at a first speed and a first torque, including the following steps: The control motor rotates forward along the first direction, and the control motor drives the drive bearing to rotate; The drive bearing drives the fixed drive gear to rotate, and the drive gear directly meshes with the second one-way rotating gear, which transmits power to the output shaft. The output shaft cuts the bagged material at a low torque and high speed with a first rotational speed and a first torque.

4. The adaptive speed-regulating unpacking and conveying process according to claim 2, characterized in that, The control motor drives the speed regulating component in a second direction, and the output shaft of the speed regulating component drives the cutting blade assembly to perform high-torque, low-speed cutting at a second speed and a second torque, including the following steps: The control motor rotates in reverse along the second direction, and the control motor drives the drive bearing to rotate. The first unidirectional rotating gear rotates, driving the outer teeth of the first transmission gear; the inner teeth of the first transmission gear drive the outer teeth of the second transmission gear; the inner teeth of the second transmission gear drive the output gear to rotate; and the rotation of the output gear drives the output shaft to rotate. The output shaft drives the cutting blade assembly to cut the bagged material at a second rotational speed and a second torque.

5. The adaptive speed-regulating unpacking and conveying process according to claim 1, characterized in that, The ratio of the first torque to the second torque of the speed regulating component is 1:4 to 1:

8.

6. The adaptive speed-regulating unpacking and conveying process according to claim 5, characterized in that, The first rotational speed is 800 r / min-1000 r / min, the second rotational speed is 125 r / min-250 r / min, the preset torque value is 11 N·m-20 N·m, and the power of the control motor is 0.8 kW-1.2 kW.

7. The adaptive speed-regulating unpacking and conveying process according to claim 1, characterized in that, The cutting blade assembly includes a rotating shaft, a transmission belt, a blade baffle, and a cutting blade. The rotating shaft is rotatably mounted inside the feed box. The blade baffle is fixed to the feed box and has a clearance groove. The cutting blade is mounted in the clearance groove and fixed to the rotating shaft. The transmission belt is respectively sleeved on the rotating shaft and the output shaft of the speed regulating component.

8. The adaptive speed-regulating unpacking and conveying process according to claim 1, characterized in that, The rotary screen mechanism includes a rotary screen, a drum box, a drive roller, a rolling shaft, and a rotary motor. The drum box has a powder outlet at the bottom and a waste outlet at one end of the rotary screen. The rotary motor is mounted on the drum box, and the rolling shaft is connected to the output end of the rotary motor. The rolling shaft is rotatably mounted on the drum box, and the rotary screen is mounted on the rolling shaft. The rolling shaft is used to drive the rotary screen to rotate.

9. The adaptive speed-regulating unpacking and conveying process according to claim 1, characterized in that, The vibrating discharge mechanism includes a vibrating motor, a vibrating plate assembly, a support frame, and elastic elements. The vibrating plate assembly is located below the powder outlet. The vibrating motor is fixed to the vibrating plate assembly. There are multiple elastic elements. The support frame and the vibrating plate assembly are connected by multiple elastic elements.

10. The adaptive speed-regulating unpacking and conveying process according to claim 1, characterized in that, The material conveying mechanism includes a screw pusher, a conveying box, and a conveying motor. The inlet of the conveying box is connected to the waste outlet. The screw pusher is installed inside the conveying box and is connected to the rotation output end of the conveying motor.

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