Rapid conveying equipment for corrugated board production line

Abstract

The invention relates to rapid conveying equipment for a corrugated board production line, which belongs to the technical field of conveying equipment for production lines and comprises a workbench, a dynamic supporting mechanism is arranged on the workbench, a double-helix guide roller is arranged on one side of the dynamic supporting mechanism, a deviation rectifying device is arranged on the other side of the dynamic supporting mechanism, and the dynamic supporting mechanism comprises a floating roller. Balance bridge mechanisms are arranged at the two ends of the floating roller, air cushion flow field mechanisms are further arranged at the two ends of the workbench, each air cushion flow field mechanism comprises a guide roller flow field assembly and a tail end discharging flow field assembly, the deviation rectifying device comprises a memory alloy deviation rectifying piece and a friction heat conduction roller, and each balance bridge mechanism comprises a gravity pendulum bob, an elastic reset mechanism and a U-shaped installation workpiece. The U-shaped mounting workpiece is embedded into the middle section of the workbench and connected with the workbench through screws, sliding rails are arranged on the two walls of the inner side of the U-shaped mounting workpiece, sliding blocks are arranged between the two sliding rails, and the sliding blocks are rotationally connected after circular shafts at the two ends of the floating roller penetrate through the sliding blocks; the whole conveying device has the advantages of being high in conveying speed, high in deviation rectifying precision, low in maintenance cost and the like.

Description

Technical Field

[0001] The invention relates to rapid feeding equipment for a corrugated paperboard production line, belonging to the technical field of feeding equipment for production lines. Background Art

[0002] In the corrugated cardboard production line, the tension stability and correction accuracy of the high-speed feeding system directly affect the production efficiency and product quality. The existing guide roller system generally relies on contact friction conveying. When the speed exceeds 350m / min, the roller surface wears more and is prone to electrostatic adsorption, which restricts the upper limit of the equipment's operating speed. In addition, traditional tension control mechanisms mostly use a single spring structure, which has problems such as slow response speed and compensation lag, resulting in a tension fluctuation rate of more than 2% during high-speed operation, which can easily cause paper breakage or stacking misalignment. At the same time, the mechanical correction device requires an additional drive unit, which has high energy consumption and complex maintenance, and it is difficult to meet the needs of modern production line intelligent upgrades.

[0003] Patent CN117068837A discloses an automatic deviation correction device and method for the dryer of a corrugated cardboard production line. In the solution, a deflection bracket is rotationally connected with a fixed frame through a central rotating shaft, and a rotation deviation correction drive component drives the deflection bracket and the conveying component to rotate and align with the corrugated cardboard to be corrected, so that the corrugated cardboard to be corrected smoothly enters the conveying component and moves forward under the drive of the conveying component; however, the solution of the patent document has technical bottlenecks in terms of response speed, non-contact conveying, energy efficiency control and high-speed stability. In the solution, the deviation correction depends on the active adjustment of the motor-screw of the rotating drive component, and the long mechanical transmission chain causes the response time to be greater than 0.1 seconds, which cannot match the real-time deviation correction requirements of high-speed feeding. At the same time, the solution adopts contact conveying between the active conveying roller and the paper pressing rubber roller, and the friction coefficient is large. It is easy to cause paper surface wear and electrostatic adsorption during high-speed operation, which restricts the upper limit of the speed. In addition, the solution also has the problems of relying on feedback control of external detection components, poor deviation correction accuracy, and manual intervention is required for resetting. Its suspended ballast depends on cylinder pressure adjustment, and it is easy to become unstable due to airflow disturbance during high-speed operation.

[0004] As the packaging industry's requirements for production rhythm increase, traditional equipment has exposed significant shortcomings in dynamic balance control and multi-physical field coupling: the guide roller system lacks an axial kinetic energy conversion mechanism, and the correction process requires additional power; tension adjustment and correction actions are controlled separately, and the system coordination is poor; key components need to be replaced frequently due to friction loss, and maintenance costs account for more than 35% of the total equipment cost. The industry urgently needs an integrated solution that can achieve self-balancing correction, non-contact transportation and intelligent thermal management to break through the existing technical bottleneck and meet the industrial upgrading needs of high-speed and stable production. Summary of the invention

[0005] In view of the defects existing in the above prior art, the present invention provides a fast feeding device for a corrugated board production line, which solves the problems that the common base paper feeding equipment has slow feeding speed, poor correction accuracy and high maintenance cost.

[0006] The objective of the present invention is achieved through the following technical scheme, a kind of rapid feeding equipment for corrugated cardboard production line: comprising a workbench, a dynamic support mechanism is arranged on the workbench, a double spiral guide roller is arranged on one side of the dynamic support mechanism, a correction device is arranged on the other side of the dynamic support mechanism, the dynamic support mechanism comprises a floating roller, a balancing bridge mechanism is arranged at both ends of the floating roller, an air cushion flow field mechanism is also arranged at both ends of the workbench, the air cushion flow field mechanism comprises a guide roller flow field assembly and an end discharge flow field assembly, and the correction device comprises a memory alloy correction sheet and a friction heat conduction roller.

[0007] Furthermore, the balancing bridge mechanism includes a gravity pendulum and an elastic reset mechanism, and also includes a U-shaped mounting workpiece, which is embedded in the middle section of the workbench and connected by screws. Slide rails are provided on the two inner walls of the U-shaped mounting workpiece, and a slider is provided between the two slide rails. The slider is penetrated by the round shafts at both ends of the floating roller and is rotatably connected.

[0008] Furthermore, the gravity pendulum includes a rotating ring, a suspension swing arm is provided at the bottom of the rotating ring, a columnar counterweight block is penetrated at the end of the suspension swing arm and is fixed by a gasket and screw support at the bottom, the columnar counterweight block is made of tungsten alloy, and the rotating ring is connected to the circular shafts at both ends of the floating roller through a rotating shaft.

[0009] Furthermore, the elastic reset mechanism includes a reset spring, a sliding rod is provided on the inner side of the reset spring, the bottom end of the sliding rod is connected to the sliding block through a rotating shaft, a support frame is provided under the reset spring, the support frame is fixed to the upper surface of the workbench by screws, the support frame is penetrated by the sliding rod, and a gasket is provided on the top of the reset spring and is limited by a nut after being penetrated by the sliding rod.

[0010] Furthermore, the surface of the floating roller is provided with a plurality of transverse arc grooves.

[0011] Furthermore, the outer surface of the double-helix guide roller is provided with two groups of spiral grooves in opposite directions, the intersection direction of the two groups of spiral grooves points to the floating roller, both ends of the spiral grooves are provided with annular grooves and are connected through, the circular shafts at both ends of the double-helix guide roller are connected to the workbench through a rotating shaft, and a transmission wheel is installed on the outer side of one end of the double-helix guide roller.

[0012] Furthermore, the friction heat-conducting roller is designed as a semi-cylindrical sheet and is welded to the memory alloy correcting sheet. The memory alloy correcting sheet is embedded in the inner wall surface of the workbench. The workbench is provided with a low-depth groove at the memory alloy correcting sheet. Two memory alloy correcting sheets are installed in the low-depth groove. A mounting part is provided on the outside of the memory alloy correcting sheet and is connected to the workbench by screws.

[0013] Furthermore, the guide roller flow field assembly is located on the outer side below the double-helix guide roller, and the guide roller flow field assembly includes a first strip-shaped air chamber, a plurality of first air holes are arrayed on the surface of the first strip-shaped air chamber, a first pipe is installed on the outer side of the first strip-shaped air chamber, and the first strip-shaped air chamber is fixed to the workbench by screws.

[0014] Furthermore, the end discharge flow field assembly includes two second strip-shaped air chambers, a plurality of second air holes are arrayed on adjacent surfaces of the two second strip-shaped air chambers, both sides of the second air holes are designed with chamfered corners, second pipe fittings are installed on the outer sides of the two second strip-shaped air chambers, and the second strip-shaped air chambers are fixed to the workbench by screws.

[0015] Furthermore, the bottom plate of the workbench is a plurality of closely arranged smooth metal plates, and an electromagnet generating module is arranged inside the metal plates.

[0016] In summary, compared with the prior art, the present invention has the following advantages:

[0017] 1. In the scheme of the present invention, the double-helix guide roller innovatively realizes the adaptive deviation correction function through the design of reverse spiral grooves. The spiral groove decomposes the axial kinetic energy of the base paper into the lateral deviation correction force, forming a nonlinear enhanced restoring torque. The deviation correction efficiency is nearly 40% higher than that of the traditional guide roller. The air cushion layer generated by the guide roller flow field assembly enables the conveying speed to break through the bottleneck of 540m / min. Combined with the axial force maintenance mechanism, the stability during high-speed feeding is significantly improved. At the same time, the air cushion suspension layer converts the sliding friction between the base paper and the double-helix guide roller into air film friction, and the friction coefficient is reduced to below 0.002, effectively extending the service life of key components;

[0018] 2. In the solution of the present invention, a composite control mechanism of a tungsten alloy columnar counterweight and an elastic reset mechanism is adopted to achieve 0.01 second level real-time dynamic compensation, which is more than 5 times faster than the response speed of the traditional spring structure. The arc groove design on the surface of the floating roller makes the contact stress evenly distributed, reducing the risk of local wear.

[0019] 3. In the scheme of the present invention, the correction device adopts a passive control mode of memory alloy and heat conduction, breaking through the response delay limitation of the traditional sensor-actuator architecture. The 15° bending angle generated by the phase change of the superelastic Ni-Ti-Nb alloy sheet at 40°C can generate a lateral correction force of 3.6N / m, and the correction accuracy reaches ±0.5mm. The heat dissipation system composed of aluminum alloy honeycomb sandwich panel mounting parts and copper heat pipes can complete the correction and reset cycle within seconds, saving 100% energy compared to the active cooling system. This design extends the life of the correction mechanism and reduces maintenance costs by 65%. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the dynamic support mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the double spiral guide roller structure of the present invention;

[0023] Figure 4 It is a cross-sectional view of the structure of the deviation correction device of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the end discharge flow field component of the present invention.

[0025] In the figure: 1-working table, 2-dynamic support mechanism, 3-double spiral guide roller, 4-correction device, 5-air cushion flow field mechanism;

[0026] 11-low depth tank body, 12-metal plate, 21-floating roller, 22-balance bridge mechanism, 31-spiral groove, 32-annular groove, 33-transmission wheel, 41-memory alloy deviation correction sheet, 42-friction heat conduction roller, 43-mounting part, 51-guide roller flow field assembly, 52-end discharge flow field assembly;

[0027] 211-arc groove, 221-gravity pendulum, 222-elastic reset mechanism, 223-U-shaped mounting workpiece, 224-slide rail, 225-slider, 511-first strip air chamber, 512-first air hole, 513-first pipe fitting, 521-second strip air chamber, 522-second air hole, 523-second pipe fitting;

[0028] 2211-rotating ring, 2212-suspension swing arm, 2213-columnar counterweight, 2221-reset spring, 2222-sliding rod, 2223-support frame. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further specifically described below through specific embodiments, but the present invention is not limited to these embodiments.

[0030] Combination Figures 1 to 5 As shown, a fast feeding device for a corrugated cardboard production line comprises a workbench 1, on which a dynamic support mechanism 2 is provided, one side of the dynamic support mechanism 2 is provided with a double spiral guide roller 3, and the other side of the dynamic support mechanism 2 is provided with a correction device 4, the dynamic support mechanism 2 comprises a floating roller 21, and both ends of the floating roller 21 are provided with a balance bridge mechanism 22, both ends of the workbench 1 are also provided with an air cushion flow field mechanism 5, the air cushion flow field mechanism 5 comprises a guide roller flow field assembly 51 and an end discharge flow field assembly 52, and the correction device 4 comprises a memory alloy correction sheet 41 and a friction heat conduction roller 42.

[0031] Combination Figure 1 and Figure 2 As shown, the balance bridge mechanism 22 includes a gravity pendulum 221 and an elastic reset mechanism 222, and also includes a U-shaped mounting workpiece 223. The U-shaped mounting workpiece 223 is embedded in the middle section of the workbench 1 and connected by screws. Slide rails 224 are provided on the two inner walls of the U-shaped mounting workpiece 223. A slider 225 is provided between the two slide rails 224. The slider 225 is penetrated by the round shafts at both ends of the floating roller 21 and is rotatably connected.

[0032] Combination Figure 1 and Figure 2 As shown, the gravity pendulum 221 includes a rotating ring 2211, a suspension swing arm 2212 is provided at the bottom of the rotating ring 2211, a columnar counterweight 2213 is penetrated at the end of the suspension swing arm 2212 and is fixed by a gasket and screw support at the bottom, the columnar counterweight 2213 is made of tungsten alloy, the rotating ring 2211 is connected to the circular shafts at both ends of the floating roller 21 through a rotating shaft, and tungsten alloy of the same size is heavier than an iron block, and can quickly generate the gravity and inertia force required for adjustment, and convert the action of the gravity pendulum 221 into the pressure of the floating roller 21 on the base paper belt.

[0033] Combination Figure 1 and Figure 2As shown, the elastic reset mechanism 222 includes a reset spring 2221, a slide bar 2222 is provided inside the reset spring 2221, the bottom end of the slide bar 2222 is connected to the slider 225 through a rotating shaft, a support frame 2223 is provided below the reset spring 2221, the support frame 2223 is fixed to the upper surface of the workbench 1 by screws, the support frame 2223 is penetrated by the slide bar 2222, a gasket is provided on the top of the reset spring 2221 and is penetrated by the slide bar 2222 and then limited by a nut, when the tension of the paper tape changes, the tension increases, the paper tape is tightened to provide an upward force to the floating roller 21, and the reset spring 2 The upward elastic potential energy generated by 221, the two forces combined are greater than the reverse pulling force generated by the inertia of the tungsten alloy columnar counterweight block 2213, so that the floating roller 21 is adjusted upward, and the gravity generated by the tungsten alloy columnar counterweight block 2213 can ensure that the floating roller 21 will not separate from the base paper tape, the tension is reduced, and the paper tape is relaxed. The elastic potential energy generated by the single reset spring 2221 is not enough to offset the reverse pulling force of the tungsten alloy columnar counterweight block 2213, and the floating roller 21 falls and presses the base paper tape. The combination of the counterweight block inertia control and the conventional spring control can achieve real-time response (within 0.01 seconds).

[0034] Combination Figure 1 and Figure 2 As shown, a plurality of transverse arc grooves 211 are provided on the surface of the floating roller 21 .

[0035] Combination Figure 1 and Figure 3 As shown, the outer surface of the double helical guide roller 3 is provided with two groups of spiral grooves 31 in opposite directions, the intersection direction of the two groups of spiral grooves 31 points to the floating roller 21, both ends of the spiral grooves 31 are provided with annular grooves 32 and are connected through, the round shafts at both ends of the double helical guide roller 3 are connected to the workbench 1 through a rotating shaft, and a transmission wheel 33 is installed on the outer side of one end of the double helical guide roller 3. The reverse spiral grooves 31 of the double helical guide roller 3 cooperate with the guide roller flow field assembly 51 to generate axial airflow, forming a negative pressure area on the roller surface to produce a paper tape adsorption effect, and the groove depth is 1.5mm, which can provide sufficient contact area for the original paper surface to prevent slipping, and at the same time limit the contact depth to reduce slippage. Dynamic friction, pitch 50mm to match high-speed movement, guide roller material is light alloy (to reduce rotational inertia), the axial speed of the base paper tape produces a centrifugal trend, and the spiral groove 31 decomposes the axial kinetic energy into axial force (to maintain transportation) and lateral force after contacting the groove slope. When the base paper deviates, the double spiral groove 31 is superimposed to form a restoring torque to make the base paper tape return to the center line. The first step of feeding correction is carried out by dynamic mechanical self-balancing. The nonlinear control characteristics of "the higher the speed - the stronger the correction force" are realized through mechanical intelligent transformation, so that the base paper can achieve a faster feeding speed without causing a large deviation.

[0036] Combination Figure 1 and Figure 4As shown, the friction heat-conducting roller 42 is of semi-cylindrical design and is welded with the memory alloy deflection-correcting sheet 41. The memory alloy deflection-correcting sheet 41 is embedded in the inner wall surface of the workbench 1. The workbench 1 is provided with a low-depth groove 11 at the memory alloy deflection-correcting sheet 41. Two memory alloy deflection-correcting sheets 41 are installed in the low-depth groove 11. The memory alloy deflection-correcting sheet 41 is provided with a mounting part 43 on the outside and is connected to the workbench 1 by screws. The memory alloy deflection-correcting sheet 41 adopts a superelastic Ni-Ti-Nb ternary memory alloy (phase change temperature is 35°C±2°C), which is in an austenite state at room temperature, and is transformed into martensite above 40°C and produces bending deformation. It is arranged in a straight line under normal conditions to ensure the reference path when the base paper passes through. When the base paper tape continues to deviate on one side, the friction heat-generating trigger with the friction heat-conducting roller 42 The alloy sheet undergoes shape memory bending to form a guiding surface to force the base paper strip to return to the straight state. The bending angle is positively correlated with the contact time and can reach a maximum of 15°. After the temperature drops to room temperature, the alloy sheet automatically returns to a straight state, achieving zero-power passive correction. The mounting part 43 is an aluminum alloy double-layer honeycomb sandwich panel (core layer thickness 10mm), with stiffness increased to 3 times that of a solid structure and weight reduced by 40%. It is directly thermally welded to the memory alloy correction sheet 41. The friction heat conduction roller 42 is a hard alloy strip with a spacing of 1.5mm from the edge of the paper. A copper heat pipe is buried on the outside of the mounting part 43 to direct excess heat to the additional heat dissipation fins installed on both sides (surface area ratio 1:30). Under natural convection conditions, the temperature of the memory alloy correction sheet 41 can be reduced from 40°C to 32°C within 30 seconds to achieve rapid reset.

[0037] Combination Figure 3 As shown, the guide roller flow field assembly 51 is located on the outer side below the double helix guide roller 3, and the guide roller flow field assembly 51 includes a first strip air chamber 511, and a plurality of first air holes 512 are arranged on the surface of the first strip air chamber 511. A first pipe 513 is installed on the outer side of the first strip air chamber 511. The first strip air chamber 511 is fixed to the workbench 1 by screws. The guide roller flow field assembly 51 is connected to the high-pressure fan to generate a strong airflow, and an air cushion suspension with a thickness of 0.1-0.3 mm is formed on the surface of the double helix guide roller 3. The air cushion suspension layer and the negative pressure area of ​​the air flow in the double spiral groove 31 maintain a balanced steady state, so that the base paper tape is neither separated nor attached, and the height of the base paper tape is maintained for rapid transportation, so that the transportation speed is upgraded from the original ≤350m / min to ≥540m / min, and at the same time, the wear speed of the surface of the double spiral guide roller 3 is slowed down, and only the bearing seats at both ends need to be replaced regularly.

[0038] Combination Figure 1 and Figure 5As shown, the end discharge flow field assembly 52 includes two second strip air chambers 521, and a plurality of second air holes 522 are arranged in an array on the adjacent surfaces of the two second strip air chambers 521. The two sides of the second air holes 522 are designed with chamfered corners. The outer sides of the two second strip air chambers 521 are both installed with second pipe fittings 523, and the second strip air chambers 521 are fixed to the workbench 1 by screws.

[0039] Combination Figure 1 As shown, the bottom plate of the workbench 1 is a plurality of closely arranged smooth metal plates 12 , and an electromagnet generating module is arranged inside the metal plates 12 .

[0040] Working principle: When the scheme of the present invention is in use, the base paper tape first enters the area of ​​the double spiral guide roller 3, and the spiral groove 31 decomposes the axial kinetic energy into an axial conveying component and a lateral deviation correction component. When the paper tape deviates from the center line, the reverse spiral groove 31 is superimposed to generate a restoring torque to return the base paper tape to the center line, and the guide roller flow field component 51 is used to spray high-pressure airflow through the first air hole 512 to form a 0.3mm air cushion suspension layer. At the same time, an axial airflow is formed between the reverse spiral grooves 31, and a negative pressure area is formed on the roller surface to produce a paper tape adsorption effect, so that the paper tape and the guide roller surface are kept in non-contact transportation, the friction coefficient approaches zero, and the speed is increased to 540m / min;

[0041] Adaptive deviation correction is achieved through the dynamic support mechanism 2. When the tension of the paper tape increases, the floating roller 21 moves upward due to the combined action of the pulling force of the paper tape and the elastic force of the return spring 2221. The tungsten alloy columnar counterweight 2213 of the gravity pendulum 221 generates reverse pulling force under the influence of gravity, forming a dynamic balance. When the tension decreases, the gravity of the counterweight 2213 leads the pull-down slider 225 to move down along the slide rail 224, forcing the floating roller 21 to press the loose paper tape, achieving real-time tension compensation at the 0.01 second level. The arc groove 211 on the surface of the floating roller 21 can disperse the contact stress.

[0042] The correction device 4 maintains a 1.5mm gap with the edge of the paper tape through the friction heat-conducting roller 42. When the base paper tape continues to deviate and generates heat by contact with the friction heat-conducting roller 42, the heat is conducted to the memory alloy correction sheet 41 through the hard alloy strip, triggering it to undergo martensitic phase transformation bending at 40°C, forming a maximum 15° guide surface to force the paper tape to return to the straight position. During reset, the copper heat pipe guides the heat to the heat dissipation fins, and the temperature drops to 32°C within 30 seconds to restore the alloy sheet to a straight position; the second air hole 522 of the end discharge flow field assembly 52 generates a convergent airflow field to stabilize the discharge trajectory; during the whole process, the electromagnet module at the bottom of the metal plate 12 can generate magnetic adsorption force to assist in dust reduction; through the synergistic effect of the triple mechanisms of dynamic mechanical balance, air suspension drag reduction and shape memory effect, the stability and correction efficiency under high-speed feeding conditions are significantly improved.

[0043] The implementation of the present invention is not limited to the above-mentioned embodiments. Without departing from the spirit and scope of the present invention, ordinary technicians in this field can make various changes and improvements to the present invention in form and detail, and these are considered to fall within the protection scope of the present invention.

Claims

1. A fast feeding device for a corrugated cardboard production line, comprising a workbench (1), characterized in that: The workbench (1) is provided with a dynamic support mechanism (2), one side of the dynamic support mechanism (2) is provided with a double spiral guide roller (3), the other side of the dynamic support mechanism (2) is provided with a deviation correction device (4), the dynamic support mechanism (2) comprises a floating roller (21), both ends of the floating roller (21) are provided with a balance bridge mechanism (22), both ends of the workbench (1) are also provided with an air cushion flow field mechanism (5), the air cushion flow field mechanism (5) comprises a guide roller flow field assembly (51) and an end discharge flow field assembly (52), and the deviation correction device (4) comprises a memory alloy deviation correction sheet (41) and a friction heat conduction roller (42).

2. The rapid feeding equipment for a corrugated board production line according to claim 1, characterized in that: The balancing bridge mechanism (22) comprises a gravity pendulum (221) and an elastic reset mechanism (222), and also comprises a U-shaped mounting workpiece (223). The U-shaped mounting workpiece (223) is embedded in the middle section of the workbench (1) and connected by screws. Slide rails (224) are provided on the inner walls of the U-shaped mounting workpiece (223). A slider (225) is provided between the two slide rails (224). The slider (225) is rotatably connected after being penetrated by the round shafts at both ends of the floating roller (21).

3. The rapid feeding equipment for a corrugated board production line according to claim 2, characterized in that: The gravity pendulum (221) comprises a rotating ring (2211), a suspension swing arm (2212) is provided at the bottom of the rotating ring (2211), a columnar counterweight (2213) is penetrated through the end of the suspension swing arm (2212) and is fixed by a gasket and screw support at the bottom, the columnar counterweight (2213) is made of tungsten alloy, and the rotating ring (2211) is connected to the circular shafts at both ends of the floating roller (21) through a rotating shaft.

4. The rapid feeding equipment for a corrugated board production line according to claim 3 is characterized by: The elastic reset mechanism (222) comprises a reset spring (2221), a sliding rod (2222) is provided inside the reset spring (2221), the bottom end of the sliding rod (2222) is connected to the slider (225) via a rotating shaft, a support frame (2223) is provided below the reset spring (2221), the support frame (2223) is fixed to the upper surface of the workbench (1) via screws, the support frame (2223) is penetrated by the sliding rod (2222), a gasket is provided on the top of the reset spring (2221), and is penetrated by the sliding rod (2222) and then limited by a nut.

5. The rapid feeding equipment for a corrugated board production line according to claim 4, characterized in that: The surface of the floating roller (21) is provided with a plurality of transverse arc grooves (211).

6. The rapid feeding equipment for a corrugated board production line according to claim 5, characterized in that: The outer surface of the double helical guide roller (3) is provided with two groups of spiral grooves (31) in opposite directions, the intersection direction of the two groups of spiral grooves (31) points to the floating roller (21), both ends of the spiral grooves (31) are provided with annular grooves (32) and are connected through, the circular shafts at both ends of the double helical guide roller (3) are connected to the workbench (1) through a rotating shaft, and a transmission wheel (33) is installed on the outer side of one end of the double helical guide roller (3).

7. The rapid feeding equipment for a corrugated board production line according to claim 6, characterized in that: The friction heat-conducting roller (42) is of semi-cylindrical design and is welded to the memory alloy deflection-correcting sheet (41); the memory alloy deflection-correcting sheet (41) is embedded in the inner wall surface of the workbench (1); the workbench (1) is provided with a low-depth groove (11) at the memory alloy deflection-correcting sheet (41); two pieces of the memory alloy deflection-correcting sheets (41) are installed in the low-depth groove (11); a mounting part (43) is provided on the outer side of the memory alloy deflection-correcting sheet (41) and is connected to the workbench (1) by screws.

8. The rapid feeding equipment for a corrugated board production line according to claim 7, characterized in that: The guide roller flow field assembly (51) is located on the outer side below the double-helix guide roller (3), and the guide roller flow field assembly (51) comprises a first strip-shaped air chamber (511), a plurality of first air holes (512) are arranged in an array on the surface of the first strip-shaped air chamber (511), a first pipe (513) is installed on the outer side surface of the first strip-shaped air chamber (511), and the first strip-shaped air chamber (511) is fixed to the workbench (1) by screws.

9. The rapid feeding equipment for a corrugated board production line according to claim 8, characterized in that: The end discharge flow field assembly (52) comprises two second strip-shaped air chambers (521), a plurality of second air holes (522) are arranged in an array on adjacent surfaces of the two second strip-shaped air chambers (521), both sides of the second air holes (522) are designed with chamfered corners, second pipe fittings (523) are installed on the outer sides of the two second strip-shaped air chambers (521), and the second strip-shaped air chambers (521) are fixed to the workbench (1) by screws.

10. The rapid feeding equipment for a corrugated board production line according to claim 9, characterized in that: The bottom plate of the workbench (1) is a plurality of closely arranged smooth metal plates (12), and an electromagnet generating module is arranged inside the metal plates (12).

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