Corrugated paper pulp waste extrusion packaging device and method thereof

Abstract

This invention relates to a corrugated paper pulp waste extrusion and baling device and method, belonging to the technical field of extrusion and baling treatment of corrugated paper pulp waste. The device includes: S1, setting up a processing apparatus, wherein the processing apparatus is sequentially arranged along a linear material processing path with a feeding and distribution zone, a creeping compression zone, and a precision pressing zone. The feeding and distribution zone is equipped with a weighing sensor for measuring the initial wet weight. The creeping compression zone is located above a horizontally reciprocating conveying and drainage base plate, and is equipped with a plurality of independently liftable compression units. This invention adaptively determines the compression stroke, speed, and holding time of compression unit N by comparing the real-time calculated unit power pressure response value with a control parameter mapping table. This dynamic, feedforward adjustment allows the compression process to be optimized according to the material in different states, improving dewatering efficiency and the targeted nature of the treatment.

Description

Technical Field

[0001] This invention relates to the field of extrusion and baling of corrugated paper pulp waste, specifically to an extrusion and baling device and method for corrugated paper pulp waste. Background Technology

[0002] Currently, the treatment of high-moisture-content corrugated paper pulp waste typically involves initial dewatering using a screw extruder followed by compression molding with a hydraulic baler. This combined approach suffers from several problems: First, when processing waste containing hard impurities, the screw extruder's blades and screen experience severe wear, leading to high maintenance costs and frequent downtime. Second, the violent extrusion process can cause the loss of fine fibers, increasing the load on subsequent wastewater treatment. Finally, the two separate sets of equipment are energy-intensive, require a large floor space, and, due to fluctuations in material moisture content, it is difficult to guarantee the density and shape consistency of the baled products. Therefore, the market urgently needs a low-wear, high-efficiency, and intelligent integrated solution.

[0003] The information disclosed in the background section above is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for compressing and baling corrugated paper pulp waste, so as to solve the problems mentioned in the background art.

[0005] The technical solution of the present invention includes:

[0006] S1. A processing device is provided, which is arranged along a linear material processing path with a feeding and distribution area, a creeping compression area and a precision pressing area. The feeding and distribution area is equipped with a weighing sensor for measuring the initial wet weight. The creeping compression area is provided above a horizontally reciprocating conveying and drainage base plate with a plurality of independently liftable compression units. Each compression unit has a compression plate installed at its output end, and a pressure sensor is provided below each compression unit on the conveying and drainage base plate.

[0007] S2. Receive pulp waste through the feeding and distribution zone, and use the weighing sensor to measure the initial wet weight of the batch of material;

[0008] S3. Start the peristaltic compression zone to carry out step-by-step conveying and dehydration of materials. The controller establishes a dynamic permeability model based on the real-time displacement, thrust and pressure data of the compression unit N-1, and determines the compression stroke, speed and holding time of the compression unit N based on the model.

[0009] S4. The pre-dehydrated material is conveyed to the precision pressing area. The controller calculates the real-time moisture content of the material based on the initial wet weight and the cumulative drainage volume corresponding to the batch of material, which is measured by the electromagnetic flow meter and tracked by the controller. Based on the real-time moisture content, the final pressure and holding time of the final pressing block are set to complete the final compression molding.

[0010] S5. Start the guillotine cutting mechanism to cut the formed material block from the subsequent materials and push the material block out.

[0011] Preferably, the step S3 of establishing a dynamic permeability model specifically includes:

[0012] The controller synchronously collects the real-time displacement of the pressure plate fed back by the servo motor encoder of the compression unit, the thrust converted from the real-time output current fed back by the servo motor driver, and the pressure rise rate fed back by the pressure sensor. It then correlates the applied thrust with the work done to generate displacement and the pressure rise rate to evaluate the densification response speed of the material and the smoothness of moisture discharge.

[0013] Preferably, step S3 includes an impact avoidance step before the step S3:

[0014] The controller calculates the real-time thrust change rate and pressure change rate to obtain the impact characteristic value. When the impact characteristic value of any of the compression units exceeds the preset impact threshold, the pressure plate of the compression unit is immediately raised, and its adjacent upstream and downstream pressure plates are also instructed to be raised to a safe height to form a pressure-free isolation zone. Then, the hard impurities are removed through a collaborative displacement program.

[0015] Preferably, the step-by-step conveying of materials in step S3 specifically involves:

[0016] The odd-numbered compression plates press down and compact the material;

[0017] The conveying and drainage base plate moves downstream at the distance of one compression unit.

[0018] Even-numbered compression plates press down to fix the material, while odd-numbered compression plates lift up.

[0019] The conveying and drainage base plate moves in the opposite direction to return to its initial position.

[0020] Preferably, in step S4, when the calculated real-time moisture content is too high, the controller increases the final pressure and holding time of the final pressure block.

[0021] A device for compressing and baling corrugated paper pulp waste includes:

[0022] Main framework;

[0023] The feeding and distribution area is located at the beginning of the main frame, and a weighing sensor is installed thereon.

[0024] The creeping compression zone is located downstream of the feeding and distribution zone. It includes a conveying and drainage base plate that can reciprocate horizontally along a heavy-duty linear slide rail inside the main frame, and a plurality of compression units that are equally spaced above the conveying and drainage base plate along the length of the main frame. A pressure sensor is provided below each compression unit on the conveying and drainage base plate.

[0025] The precision pressing and forming zone is located at the end of the peristaltic compression zone and includes a precision pressing chamber, a final pressing block for final extrusion, and a guillotine-type cutting mechanism for cutting.

[0026] A water collection tank is located below the conveying and drainage base plate, and an electromagnetic flow meter is installed at its main drain outlet;

[0027] The controller has its input end connected to the weighing sensor, the pressure sensor, and the electromagnetic flow meter, and its output end connected to the compression unit, the drive mechanism of the conveying and drainage base plate, and the drive mechanism of the precision pressing and forming zone.

[0028] Preferably, each of the compression units includes an electric cylinder driven by a ball screw pusher mechanism by a servo motor, and a compression plate is mounted vertically downward at the output end of the electric cylinder.

[0029] Preferably, the driving mechanism of the conveying and drainage base plate includes a servo motor, which drives a long-stroke ball screw, and the nut seat of the ball screw is connected to the bottom of the conveying and drainage base plate.

[0030] Preferably, the precision pressing area further includes an end sealing gate that can be driven up and down by an independent hydraulic cylinder, and the final pressing block is driven by a high-thrust hydraulic cylinder.

[0031] This invention provides an improved device and method for compressing and baling corrugated paper pulp waste, which has the following improvements and advantages compared with the prior art:

[0032] 1. The peristaltic compression zone of this invention employs multiple independently liftable compression units that move in tandem with the conveying and drainage base plate to gently compress the material in a step-by-step conveying manner. This method avoids severe shearing of the material during compression, thereby reducing mechanical wear on the equipment and helping to reduce the rate of fine fiber loss with water. The controller establishes a dynamic permeability model based on the real-time displacement, thrust, and pressure data of compression unit N-1, and uses this model to evaluate the densification response speed of the material and the smoothness of water discharge. By comparing the real-time calculated unit work pressure response value with the control parameter mapping table, the compression stroke, speed, and holding time of compression unit N are adaptively determined. This dynamic, feedforward adjustment allows the compression process to be optimized according to the material in different states, improving dewatering efficiency and the specificity of the treatment.

[0033] 2. The weighing sensors in the feeding and distribution zones of this invention are used to measure the initial wet weight of the batch of materials. The electromagnetic flowmeter at the outlet of the water collection tank is used to measure the total drainage volume. The controller calculates the real-time moisture content of the material based on the initial wet weight and the total drainage volume. Based on this real-time moisture content, the final pressure and holding time are set. For example, when the calculated real-time moisture content is too high, the controller increases the final pressure and holding time. This final pressure parameter adjustment mechanism based on real-time moisture content ensures that the density and dryness of each formed material block can reach a consistent standard, improving the quality stability of the final product. Before the compression step, an impact avoidance step is set. The controller obtains the impact characteristic value by calculating the real-time thrust change rate and pressure change rate. When the impact characteristic value exceeds the preset impact threshold, the pressure plate of the compression unit is immediately raised, and the adjacent pressure plate is also instructed to be raised to a safe height to form a pressure-free isolation zone. Subsequently, a collaborative displacement program is used to attempt to remove hard impurities. This mechanism can protect the equipment from damage caused by hard impurities mixed in the material, improving the reliability and safety of equipment operation. Attached Figure Description

[0034] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0035] Figure 1 This is a schematic diagram of the overall structure of the device;

[0036] Figure 2 This is a structural schematic diagram of the feeding and distribution area, the main frame, and the conveying base;

[0037] Figure 3 This is a schematic diagram of the peristaltic compression zone;

[0038] Figure 4 This is a schematic diagram of the precision pressing area;

[0039] Figure 5 This is a schematic diagram of the process flow of the method of the present invention.

[0040] In the diagram: 100, Feeding and distribution area; 130, Weighing sensor; 210, Main frame; 220, Conveying and drainage base plate; 230, Heavy-duty linear guide rail; 240, Servo motor; 250, Long-stroke ball screw; 260, Water collection tank; 300, Peristaltic compression area; 320, Compression unit; 330, Electric cylinder; 340, Compression plate; 400, Precision pressing area; 410, Precision pressing chamber; 420, End sealing door; 430, High-thrust hydraulic cylinder; 440, Final pressure block; 450, Guillotine cutting mechanism; 500, Controller; 510, Electromagnetic flow meter. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. Example 1

[0042] Please see Figure 1-5 This invention provides a method for compressing and baling corrugated paper pulp waste, comprising:

[0043] S1. A processing device is set up, which is arranged along a linear material processing path with a feeding and distribution area 100, a creeping compression area 300 and a precision pressing area 400. The feeding and distribution area 100 is equipped with a weighing sensor 130 for measuring the initial wet weight. The creeping compression area 300 is set above a horizontally reciprocating conveying and drainage base plate 220, with a plurality of independently liftable compression units 320. Each compression unit 320 has a compression plate 340 installed at its output end, and a pressure sensor is set below each compression unit 320 on the conveying and drainage base plate 220.

[0044] S2. Receive pulp waste through the feeding and distribution zone 100, and use the weighing sensor 130 to measure the initial wet weight of the batch of material.

[0045] S3. Start the peristaltic compression zone 300 to carry out step-by-step conveying and dehydration of materials. The controller 500 establishes a dynamic permeability model based on the real-time displacement, thrust and pressure data of the N-1 compression unit 320, and determines the compression stroke, speed and holding time of the N compression unit 320 according to the model.

[0046] S4. The pre-dehydrated material is conveyed to the precision compression molding area 400. The controller 500 calculates the real-time moisture content of the material based on the initial wet weight and the cumulative drainage volume corresponding to the batch of material measured by the electromagnetic flow meter 510 and tracked by the controller 500. Based on the real-time moisture content, the final pressure and holding time of the final pressure block 440 are set to complete the final compression molding.

[0047] S5. Start the guillotine cutting mechanism 450 to cut the formed material block from the subsequent materials and push the material block out.

[0048] A method for extruding and baling corrugated paper pulp waste addresses the problems of severe equipment wear, high fiber loss rate, and unstable baling quality in existing technologies by setting up a processing device integrating a feeding and distribution zone 100, a creeping compression zone 300, and a fine compression forming zone 400. The method first uses a weighing sensor 130 in the feeding and distribution zone 100 to obtain the initial wet weight of the material, providing basic data for subsequent moisture content calculation. Through the coordinated movement of multiple compression units 320 and the conveying and drainage base plate 220 in the creeping compression zone 300, the material is gently conveyed and compressed in a step-by-step manner. Compared with traditional screw extrusion, this method reduces the severe shearing of the material, helping to reduce the loss of fine fibers. Simultaneously, the controller 500 dynamically adjusts the action parameters of the next unit based on the compression data of the previous compression unit 320, achieving adaptive processing for different material states. Finally, in the precision pressing zone 400, the controller 500 calculates the real-time moisture content of the material by combining the initial wet weight and the total drainage volume measured by the electromagnetic flowmeter 510, and sets the final compression parameters accordingly, ensuring that the density and dryness of each molded block can reach the same standard, thus improving the quality stability of the final product.

[0049] The steps in S3 to establish a dynamic permeability model specifically include:

[0050] The controller 500 synchronously collects the real-time displacement of the pressure plate fed back by the servo motor encoder of the compression unit 320, the thrust converted from the real-time output current fed back by the servo motor driver, and the pressure rise rate fed back by the pressure sensor. It then correlates the applied thrust with the work done to generate displacement and the pressure rise rate to evaluate the densification response speed of the material and the smoothness of moisture discharge.

[0051] The purpose of establishing the dynamic permeability model is to enable the controller 500 to perceive the changes in the internal state of the material during the compression process in real time. When the compression unit 320 applies pressure to the material, the controller 500, such as a Siemens S7-1500 series PLC, processes three sets of data simultaneously: first, real-time displacement data of the pressure plate from the servo motor encoder, reflecting the degree of material compression; second, real-time output current from the servo motor driver, which can be converted into the magnitude of the thrust applied to the material; and third, the rate of pressure rise from the pressure sensor below the compression unit 320, reflecting the speed at which the internal pressure of the material builds up. The controller 500 correlates the work done, represented by the product of the thrust and displacement, with the rate of pressure rise.

[0052] One feasible correlation analysis logic is that the controller 500 calculates the unit work pressure response value in real time during the compression process of the compression unit 320. The calculation logic is as follows: within a very small time interval, the pressure increment fed back by the pressure sensor is divided by the increment of work applied to the material within that time interval, i.e., real-time thrust multiplied by real-time displacement increment. This response value intuitively reflects the material densification effect brought about by the application of unit energy. A higher response value means that the internal moisture of the material is easy to drain, while a lower response value indicates that the material is highly densified and difficult to drain. The controller 500 compares this real-time calculated response value with different threshold intervals preset in the control parameter mapping table, thereby completing the evaluation of the dynamic permeability of the material. This method is only an example, and any algorithm that can establish the relationship between work done and pressure change falls within the protection scope of this invention.

[0053] If a large amount of work is applied but the pressure rises slowly, it indicates that the material is loose, the internal moisture is drained smoothly, and the permeability is good. Conversely, if a small amount of work can cause the pressure to rise rapidly, it indicates that the material has become highly dense or has formed a filter cake layer, making it difficult for moisture to drain and reducing permeability. This assessment provides a direct basis for how the subsequent compression unit 320 can adjust its operating parameters, such as stroke and speed, making the compression process more efficient and targeted.

[0054] The control parameter mapping table can be a data structure stored in the memory of the controller 500, and a non-limiting example is as follows:

[0055] Permeability assessment value range (unit: Pa / J) Material Status Interpretation Nth compression unit action parameters >1000 The material is loose and contains a large amount of free water. Stroke: Large stroke (e.g., 80%); Speed: Fast; Holding time: Short 100-1000 The material has been initially compacted. Stroke: Medium stroke (e.g., 50%); Speed: Medium speed; Holding time: Medium <100 The material is highly dense, mainly consisting of bound water. Stroke: Small stroke (e.g., 20%); Speed: Slow; Holding time: Long

[0056] The controller 500 queries this table based on the permeability assessment value calculated by the N-1 compression unit 320. Once the corresponding interval is matched, it can automatically call the preset action parameter combination for that interval and instruct the N compression unit 320 to execute it.

[0057] S3 includes an impact avoidance step preceding the following steps:

[0058] The controller 500 calculates the real-time thrust change rate and pressure change rate to obtain the impact characteristic value. When the impact characteristic value of any compression unit 320 exceeds the preset impact threshold, the pressure plate of the compression unit 320 is immediately raised, and its adjacent upstream and downstream pressure plates are also instructed to be raised to a safe height to form a pressure-free isolation zone. Then, the hard impurities are removed through a cooperative displacement program.

[0059] The impact avoidance steps are designed to protect the equipment from damage caused by hard impurities mixed in with the material, such as stones or metal blocks. While executing the compression command, the controller 500 calculates the thrust change rate and pressure change rate of each compression unit 320 at a high frequency and combines these two change rates into an impact characteristic value.

[0060] One possible way to calculate this impact characteristic value can be expressed by the following formula:

[0061]

[0062] in: This is the final calculated impact characteristic value;

[0063] These are preset weighting coefficients. These two coefficients can be empirically set based on the general characteristics of the waste. For example, if a sudden change in pressure reflects the presence of hard impurities better than a sudden change in thrust, then these coefficients can be set. ;

[0064] The rate of change of pressure, i.e. the increase in pressure per unit time, is calculated from the continuous sampling data of the pressure sensor, where P represents pressure and t represents time.

[0065] The thrust rate is the increase in thrust per unit time, which is continuously calculated from the thrust value converted from the real-time current fed back by the servo motor driver, where F represents thrust.

[0066] To solve the pressure change rate (unit: ) and thrust change rate (unit: To address the issue of differing physical dimensions between the pressure P and thrust F, in one specific embodiment of this invention, the controller normalizes the real-time sampled values ​​of P and F before performing weighted summation, for example, mapping them to a dimensionless range of 0-1, and then calculates their rates of change. Therefore, the formula actually involves two rates of change with the same dimensions, with weighting coefficients... It is also a dimensionless coefficient, thus ensuring the correctness of the formula in a physical sense.

[0067] The controller 500 performs this calculation at high frequency in the background and outputs the resulting impact characteristic value. The impact threshold is compared with a preset impact threshold, and if the threshold is exceeded, the impact avoidance step is triggered.

[0068] During normal compression, even with dense material, the increase in thrust and pressure is relatively smooth, and the rate of change remains within a normal range. However, when the pressure plate comes into contact with incompressible hard impurities, the thrust and pressure will increase dramatically in a very short time, causing the impact characteristic value to momentarily exceed the preset safety threshold. Once this anomaly is detected, the controller 500 will immediately interrupt the current compression operation and activate the protection program: the pressure plate of the compression unit 320 that triggered the alarm will be rapidly raised to relieve the destructive stress on the impurities; at the same time, its adjacent upstream and downstream pressure plates will also be instructed to be raised to a safe height, forming a pressure-free isolation area around the hard impurities. The controller 500 will execute a set of coordinated displacement programs, such as instructing the pressure plate upstream of the hard point to perform a short-stroke, low-thrust downward pressure, attempting to use the material's conductive force to push the hard impurities downstream to the pressure-free area, thereby resolving the blockage problem without damaging the equipment.

[0069] The step-by-step conveying of materials in step S3 is specifically as follows:

[0070] Odd-numbered compression plates 340 press down and compact the material;

[0071] The conveying drainage base plate 220 moves downstream at the distance of one compression unit 320;

[0072] Even-numbered compression plates 340 press down to fix the material, while odd-numbered compression plates 340 lift up.

[0073] The conveyor drainage base plate 220 moves in the opposite direction back to its initial position.

[0074] The material is conveyed in a step-by-step manner, achieving gentle conveying and synchronous dehydration of the material in the creeping compression zone 300 through a series of precisely coordinated mechanical actions. The entire process consists of four consecutive actions forming a cycle. In the first step, all odd-numbered compression plates 340, such as 1, 3, 5, and 7, press down vertically, compacting the pulp waste below onto the movable conveying and draining base plate 220, squeezing out some water in the process. In the second step, the servo motor 240 driving the conveying and draining base plate 220 starts, moving the entire base plate along with the material fixed by the odd-numbered compression plates downstream to the precision pressing and forming zone. The first step involves shifting the standard spacing of one compression unit 320 in a 400-degree direction. The second step involves all even-numbered compression plates 340, such as 2, 4, 6, and 8, pressing down to fix the material in a new position. Simultaneously, all odd-numbered compression plates 340 are raised to disengage from the material. The third step involves the even-numbered plates fixing the material, while the conveying and drainage base plate 220 moves in the opposite direction under the drive of the servo motor 240, returning to its initial position. By continuously repeating these four steps, the material is steadily conveyed downstream step by step, like being propelled by waves, while continuously dehydrating during each compression.

[0075] In step S4, when the calculated real-time moisture content is too high, the controller 500 increases the final pressure and holding time of the final pressure block 440.

[0076] The controller 500 regulates the final pressing process to ensure that the final output material blocks have highly consistent physical properties. When the material is conveyed to the precision pressing zone 400, the controller 500 calls up two key data: one is the initial wet weight of the batch of material recorded in step S2; the other is the drainage volume belonging only to the batch of material, which is tracked and accumulated by the controller 500 from the moment the batch of material enters the peristaltic compression zone 300, based on the real-time data from the electromagnetic flowmeter 510. By subtracting the corresponding accumulated drainage volume from the initial wet weight, the theoretical weight of the current material can be obtained, and its real-time moisture content can be calculated from this.

[0077] In this calculation logic, in order to achieve rapid online control, the weight of the liquid discharged from the conveying and drainage base plate 220 is approximated as the weight of pure water. In actual working conditions, the liquid may contain a small amount of fine fibers that are lost with the water, but their weight usually accounts for a small proportion of the total drainage volume and has a limited impact on the calculation of the final moisture content. In order to further improve the accuracy, the discharged liquid can also be sampled and analyzed during the system debugging phase to obtain an average solid content, which is then used as a fixed correction coefficient and introduced into the calculation logic of the controller 500 to obtain a more accurate real-time moisture content.

[0078] The moisture content is the core factor determining the final pressure parameters. If the controller 500 calculates that the real-time moisture content of the material is higher than the preset target value, it indicates that the material still contains a significant amount of moisture and requires stronger compression treatment. In this case, the controller 500 will automatically adjust the output signal, increasing the final pressure of the high-thrust hydraulic cylinder 430 driving the final pressure block 440 and extending its holding time under high pressure. This effectively squeezes out deeper bound water, ensuring that even materials with a high initial moisture content can achieve standard dryness and density after final processing. Example 2

[0079] Please see Figure 1-4 A corrugated paper pulp waste compression and baling device, comprising:

[0080] Main framework 210;

[0081] The feeding and distribution area 100 is located at the beginning of the main frame 210, and a weighing sensor 130 is installed on it.

[0082] The creeping compression zone 300 is located downstream of the feeding and distribution zone 100. It includes a conveying and drainage base plate 220 that can reciprocate horizontally along a heavy-duty linear slide rail 230 inside the main frame 210, and a plurality of compression units 320 that are equally spaced above the conveying and drainage base plate 220 along the length of the main frame 210. A pressure sensor is provided below each compression unit 320 on the conveying and drainage base plate 220.

[0083] The precision pressing forming area 400 is located at the end of the peristaltic compression area 300, and includes a precision pressing chamber 410, a final pressing block 440 for final extrusion, and a guillotine-type cutting mechanism 450 for cutting.

[0084] A water collection tank 260 is located below the conveying and drainage base plate 220, and an electromagnetic flow meter 510 is installed at its main drain outlet.

[0085] The controller 500 has its input end connected to the weighing sensor 130, the pressure sensor and the electromagnetic flow meter 510, and its output end connected to the driving mechanism of the compression unit 320, the conveying and drainage base plate 220 and the precision pressing and forming zone 400.

[0086] A corrugated paper pulp waste extrusion and baling device is designed to integrate the entire processing flow into a single unit. The device is based on a robust main frame 210, with the material handling path extending linearly along its length. The path begins at the feeding and distribution zone 100, where a weighing sensor 130 acquires initial material data. Following this is the peristaltic compression zone 300, the core area for gentle dewatering and conveying. This zone consists of a horizontally reciprocating conveying and drainage base plate 220 below and multiple independently arranged compression units 320 above, each with a pressure sensor monitoring real-time pressure. The path ends at the precision forming zone 400, used for final high-pressure forming and cutting of the material. Below the entire device, there is a water collection tank 260 and an electromagnetic flow meter 510, which are used to collect and measure the discharged water. All data inputs from the sensors and action outputs from all drive mechanisms are managed by a controller 500. The controller 500 can be connected to each sensing device and drive mechanism via an industrial bus to ensure the real-time performance and reliability of data transmission.

[0087] Each compression unit 320 includes an electric cylinder 330 driven by a ball screw pusher mechanism by a servo motor, and a compression plate 340 is mounted vertically downward at the output end of the electric cylinder 330.

[0088] Each compression unit 320 is specifically constructed using an electric cylinder 330 as its core actuator. This electric cylinder 330 is a precision transmission device that converts the rotary motion of a servo motor into linear motion via a ball screw pusher mechanism. This structural choice aims to achieve highly precise control over the compression process. The characteristics of the servo motor allow the controller 500 to precisely set and adjust the stroke, speed, and output thrust of the electric cylinder 330's output end, namely the compression plate 340. This precision is fundamental to achieving adaptive compression based on a dynamic permeability model and rapid response actions during impact avoidance, a feat unmatched by traditional hydraulic or pneumatic drive methods. The compression plate 340 is securely mounted to the output end of the electric cylinder 330 using standard connectors such as flanges, ensuring uniform pressure is applied to the material during vertical downward compression.

[0089] The drive mechanism of the conveying and drainage base plate 220 includes a servo motor 240, which drives a long-stroke ball screw 250. The nut seat of the long-stroke ball screw 250 is connected to the bottom of the conveying and drainage base plate 220.

[0090] The drive mechanism for the conveying and drainage base plate 220 is designed to provide precise, smooth, and repeatable reciprocating linear motion. The core components of this drive mechanism are a servo motor 240 and a long-stroke ball screw 250. The servo motor 240 provides power and is connected to the long-stroke ball screw 250 via a coupling. The nut seat of the long-stroke ball screw 250 is rigidly connected to the bottom of the conveying and drainage base plate 220. When the servo motor 240 rotates, the ball screw 250 rotates accordingly, driving the nut seat to move linearly along the screw axis, thereby causing the entire conveying and drainage base plate 220 to move horizontally reciprocally on the heavy-duty linear guide rail 230 inside the main frame 210. The purpose of using a servo motor 240 in conjunction with the long-stroke ball screw 250 is to achieve precise control of the displacement and speed of the conveying and drainage base plate 220. This is crucial for ensuring perfect timing synchronization between its movement and the lifting and lowering actions of multiple compression units 320, thus ensuring the reliability of the stepping conveyor.

[0091] The precision pressing area 400 also includes an end sealing gate 420 that can be driven up and down by an independent hydraulic cylinder, and the final pressing block 440 is driven by a high-thrust hydraulic cylinder 430.

[0092] The power configuration of the precision pressing zone 400 employs a hydraulic drive to meet the enormous thrust required in the final pressing stage. The final pressing block 440, responsible for the final extrusion in this zone, is powered by a high-thrust hydraulic cylinder 430. The hydraulic cylinder was chosen because it can provide stable and powerful continuous thrust with a relatively compact structure, essential for compacting the initially dehydrated material into a high-density block. Simultaneously, at the end of the precision pressing chamber 410, a heavy-duty end-sealing gate 420 is installed. This gate is driven by an independent hydraulic cylinder for its up-and-down opening and closing motion. This independent drive design allows the gate to reliably close and withstand the enormous back pressure before the final pressing block 440 begins extrusion, and to quickly open after pressing, enabling the final pressing block 440 to eject the formed block, ensuring the sealing and efficiency of the precision pressing process.

[0093] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for extrusion baling corrugated paper pulp waste, characterized in that, include: S1. A processing device is set up, wherein the processing device is arranged in sequence along a linear material processing path, including a feeding and distribution area (100), a creeping compression area (300), and a precision pressing area (400). The feeding and distribution area (100) is equipped with a weighing sensor (130) for measuring the initial wet weight. The creeping compression area (300) is provided with a plurality of independently liftable compression units (320) above a horizontally reciprocating conveying and drainage base plate (220). Each compression unit (320) has a compression plate (340) installed at its output end, and a pressure sensor is provided below each compression unit (320) on the conveying and drainage base plate (220). S2. Receive pulp waste through the feeding and distribution zone (100) and measure the initial wet weight of the batch of material using the weighing sensor (130); S3. Start the peristaltic compression zone (300) to carry out step-by-step conveying and dehydration of materials. The controller (500) establishes a dynamic permeability model based on the real-time displacement, thrust and pressure data of the compression unit (320) of N-1, and determines the compression stroke, speed and holding time of the compression unit (320) of N based on the model. S4. The preliminarily dehydrated material is transported to the precision pressing area (400). The controller (500) calculates the real-time moisture content of the material based on the initial wet weight measured by the electromagnetic flow meter (510) and tracked by the controller (500) and the cumulative drainage volume corresponding to the batch of material. Based on the real-time moisture content, the final pressure and holding time of the final pressing block (440) are set to complete the final compression molding. S5. Start the guillotine cutting mechanism (450) to cut the formed block from the subsequent material and push the block out.

2. The method for compressing and baling corrugated paper pulp waste according to claim 1, characterized in that, The establishment of the dynamic permeability model in step S3 specifically includes: The controller (500) synchronously collects the real-time displacement of the pressure plate fed back by the servo motor encoder of the compression unit (320), the thrust converted from the real-time output current fed back by the servo motor driver, and the pressure rise rate fed back by the pressure sensor, and correlates the applied thrust with the work done to generate displacement and the pressure rise rate to evaluate the densification response speed of the material and the smoothness of moisture discharge.

3. The method for extruding and baling corrugated paper pulp waste according to claim 1, characterized in that, The impact avoidance step is preceding step S3: The controller (500) calculates the real-time thrust change rate and pressure change rate to obtain the impact characteristic value. When the impact characteristic value of any of the compression units (320) exceeds the preset impact threshold, the pressure plate of the compression unit (320) is immediately raised, and its adjacent upstream and downstream pressure plates are also raised to a safe height to form a pressure-free isolation zone. Then, the hard impurities are removed by a collaborative displacement program.

4. The method for compressing and baling corrugated paper pulp waste according to claim 1, characterized in that, The step-by-step conveying of materials in step S3 is specifically as follows: The odd-numbered compression plates (340) press down and compact the material; The conveying and drainage base plate (220) moves downstream by the distance of one compression unit (320); The even-numbered compression plates (340) press down to fix the material, while the odd-numbered compression plates (340) lift up. The conveying and drainage base plate (220) moves in the opposite direction back to its initial position.

5. The method for compressing and baling corrugated paper pulp waste according to claim 1, characterized in that, In step S4, when the calculated real-time moisture content is too high, the controller (500) increases the final pressure and holding time of the final pressure block (440).

6. A corrugated paper pulp waste extrusion and baling device, applied to the corrugated paper pulp waste extrusion and baling method according to any one of claims 1 to 5, characterized in that, include: Main framework (210); The feeding and distribution area (100) is located at the beginning of the main frame (210), and a weighing sensor (130) is installed thereon. The creeping compression zone (300) is located downstream of the feeding and distribution zone (100), and includes a conveying and drainage base plate (220) that can reciprocate horizontally along a heavy-duty linear slide rail (230) inside the main frame (210), and a plurality of compression units (320) that are equally spaced above the conveying and drainage base plate (220) along the length of the main frame (210). A pressure sensor is provided below each compression unit (320) on the conveying and drainage base plate (220). The precision pressing forming area (400) is located at the end of the peristaltic compression area (300) and includes a precision pressing chamber (410), a final pressing block (440) for final extrusion, and a guillotine-type cutting mechanism (450) for cutting. A water collection tank (260) is located below the conveying and drainage base plate (220), and an electromagnetic flow meter (510) is installed at its main drain outlet. The controller (500) has its input end connected to the weighing sensor (130), the pressure sensor and the electromagnetic flow meter (510), and its output end connected to the driving mechanism of the compression unit (320), the conveying and drainage base plate (220) and the driving mechanism of the precision pressing area (400).

7. The corrugated paper pulp waste extrusion and baling device according to claim 6, characterized in that, Each of the compression units (320) includes an electric cylinder (330) implemented by a ball screw pusher mechanism driven by a servo motor, and a compression plate (340) is mounted vertically downward at the output end of the electric cylinder (330).

8. The corrugated paper pulp waste extrusion and baling device according to claim 6, characterized in that, The driving mechanism of the conveying and drainage base plate (220) includes a servo motor (240), which drives a long-stroke ball screw (250), and the nut seat of the long-stroke ball screw (250) is connected to the bottom of the conveying and drainage base plate (220).

9. A corrugated paper pulp waste extrusion and baling device according to claim 6, characterized in that, The precision pressing area (400) also includes an end sealing gate (420) that can be driven up and down by an independent hydraulic cylinder, and the final pressing block (440) is driven by a high-thrust hydraulic cylinder (430).

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