A system and method for correcting a web for a web-laying machine

Abstract

The application discloses a kind of deviation rectifying system and method for laying machine, angle adjusting unit is used to adjust the angle of adjusting roller, and multiple adjusting rollers are used to sequentially rectify laying machine skin curtain respectively, rectify from the middle of laying machine skin curtain, and the angle of adjusting roller and horizontal plane gradually increases when sequentially adjusting to the both sides of skin curtain, so that skin curtain remains stable during adjustment, reduce the influence of rectification process on the operation of laying machine skin curtain, solve the defects that the rectification system of prior art influences the operation of laying machine skin curtain;The rotation speed of adjusting roller gradually increases from the middle of laying machine skin curtain to both ends, and the rectification effect on laying machine skin curtain gradually strengthens, can adapt to the rectification force required by each part of laying machine skin curtain, can match rectification, ensure that the rectification force of adjusting roller meets the force required by laying machine skin curtain, avoid that rectification force of laying machine skin curtain is too small and leads to rectification failure.

Description

Technical Field

[0001] This invention relates to the field of web laying machine technology, to the field of web laying machine control and adjustment technology, and particularly to a web laying machine correction system and method. Background Technology

[0002] A nonwoven fabric web-laying machine is a type of mechanical equipment primarily used to process nonwoven fabrics into a web-like structure. This equipment typically includes multiple rollers and a heating system, which heats, compacts, and arranges the nonwoven fabric to ultimately form a web-like structure with a specific density and orientation.

[0003] A web guiding system is an automated device used to correct the misalignment of materials or products. During the production process, various factors can cause materials or products to become misaligned, affecting production efficiency and product quality. Web guiding systems are designed to address this problem. A typical web guiding system consists of sensors, a controller, and actuators. Sensors detect the misalignment of materials or products, the controller calculates and controls based on feedback signals from the sensors, and the actuators adjust the materials or products to restore them to their correct position or trajectory.

[0004] The web-laying correction system on a nonwoven fabric laying machine refers to the system that corrects the deviation of the machine's fabric curtain. The fabric curtain on the nonwoven fabric laying machine drives the fiber web. Each section of the curtain has rollers at both ends for steering and support. However, under the rotation of the rollers, the fabric curtain may shift horizontally due to the dispersion of force. This deviation can cause fiber web misalignment and excessive wear of the fabric curtain during the laying process, affecting both the laying process and the final laying effect. The web-laying correction system on the nonwoven fabric laying machine can correct the shifted fabric curtain to the predetermined position.

[0005] The prior art CN112882436A discloses a double-correction device and control method for a netting machine curtain. Through components such as a PLC control cabinet, a main correction system, a slave correction system, and an actuator, the netting machine curtain is adjusted to correct its position by adjusting its horizontal position. However, during the correction process, the correction effect is strong, which can easily lead to overcorrection and wear on the netting machine curtain. Furthermore, when applied to a high-speed netting machine curtain, there is a possibility of it tipping over.

[0006] Therefore, it is necessary to improve the existing web laying machine correction system and method to solve the above problems. Summary of the Invention

[0007] This invention overcomes the shortcomings of the prior art and provides a correction system and method for a net laying machine.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a correction system for a net laying machine, comprising: a detection unit for detecting the offset of the net laying machine's curtain;

[0009] The adjustment unit includes: several power units and several adjustment rollers disposed on each power unit; the adjustment unit is used to correct the offset of the screen of the screen laying machine, the several adjustment rollers are respectively disposed symmetrically on both sides of the screen of the screen laying machine, the several adjustment rollers on each power unit are located in the same vertical plane, and the running direction of the screen of the screen laying machine is perpendicular to the vertical plane.

[0010] The power unit drives several adjusting rollers to rotate. Each adjusting roller is equipped with an angle adjusting unit, which is used to adjust the angle between the adjusting roller and the horizontal plane. Several angle adjusting units are located directly below the two sides of the screen of the net laying machine when it is not offset. The angle adjusting unit is fixedly connected to one end of the adjusting roller. Several power units are located on the same straight line.

[0011] The processing unit is used to control the rotation speed and the angle between the adjusting roller and the horizontal plane. The processing unit first controls the adjusting roller in the middle of the screen of the screen laying machine. When the several adjusting rollers are adjusted, the angle between them and the horizontal plane gradually increases from the middle of the screen of the screen laying machine to both sides. The distance between adjacent adjusting rollers of the same power unit and the screen of the screen laying machine on the same horizontal plane gradually decreases.

[0012] In a preferred embodiment of the present invention, the adjusting rollers are all horizontally set when not adjusted, and the angle adjusting unit drives one end of the adjusting rollers so that the adjusting rollers rotate vertically around the connection point with the angle adjusting unit.

[0013] In a preferred embodiment of the present invention, a plurality of detection units detect the difference between the centerline of the screen laying machine and the centerline of the plurality of angle adjustment units, and send the difference data to the processing unit, which then controls the angle adjustment units to adjust the angle of the adjustment roller.

[0014] In a preferred embodiment of the present invention, the density of the plurality of adjustment units is proportional to the distance between the center of the screen of the screen laying machine, and the density of the adjustment units located in the center of the screen of the screen laying machine is less than the density of the adjustment units located on both sides of the screen of the screen laying machine.

[0015] In a preferred embodiment of the present invention, the angles of the plurality of adjusting rollers are symmetrically distributed according to the middle of the screen of the screen laying machine, and the adjustment process of the adjusting rollers with the same angle is carried out simultaneously.

[0016] In a preferred embodiment of the present invention, the power unit drives the adjusting roller to rotate during correction. The rotation direction is opposite to the running direction of the screen laying machine, and the rotation speed is proportional to the running speed of the screen laying machine.

[0017] In a preferred embodiment of the present invention, a plurality of the detection units detect the contact between the screen of the screen laying machine and the adjusting roller, and after the screen of the screen laying machine contacts the adjusting roller, the contact signal is sent to the processing unit.

[0018] To achieve the above objectives, the second technical solution adopted by the present invention is: a method for using a web-laying machine correction system, based on a web-laying machine correction system, comprising the following steps:

[0019] S1: The detection unit detects the deviation of the screen curtain of the screen laying machine and sends the detection result to the processing unit. The processing unit controls the angle adjustment unit in the middle of the screen curtain of the screen laying machine. The angle adjustment unit adjusts the angle of the adjustment roller until the adjustment roller contacts the screen laying machine and corrects the deviation of the screen curtain of the screen laying machine. The rotation speed of the adjustment roller is opposite to the direction of the screen curtain of the screen laying machine.

[0020] S2: The processing unit controls the angle adjustment units on both sides of the angle adjustment unit in the middle of the screen of the net laying machine in S1. The angle adjustment units adjacent to the angle adjustment unit in the middle adjust the angle of the adjustment roller to correct the deviation of the net laying machine. The angle between the middle adjustment roller and the horizontal plane is smaller than the angle of the adjacent adjustment roller.

[0021] S3: The processing unit continues to adjust in the order of the two sides of the already corrected angle adjustment unit until the two outermost angle adjustment units adjust the angle of the adjustment roller, and the two outermost adjustment rollers are perpendicular to the horizontal plane.

[0022] S4: After the outermost adjusting roller in S3 is adjusted, the detection unit adjusts the degree of deviation of the screen laying machine to complete the detection.

[0023] In a preferred embodiment of the present invention, in step S1, when the adjusting roller contacts the screen of the screen laying machine, the detection unit detects the correction distance after the screen of the screen laying machine contacts the adjusting roller, and adjusts the rotation speed of the adjusting roller by the correction distance.

[0024] In a preferred embodiment of the present invention, in step S3, the rotational speed of the adjusting rollers on both sides of the already corrected adjusting roller is greater than the rotational speed of the adjacent already corrected adjusting roller.

[0025] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0026] (1) The present invention provides a correction system and method for a screen laying machine. The angle adjustment unit is used to adjust the angle of the adjustment roller, and multiple adjustment rollers are used to correct the screen laying machine curtain in sequence. The correction is performed from the middle of the screen laying machine curtain, and the angle between the adjustment roller and the horizontal plane gradually increases when the adjustment is performed sequentially to both sides of the curtain. Compared with the correction system of the screen laying machine in the prior art, the curtain remains stable during the adjustment process, reducing the impact of the correction process on the operation of the screen laying machine curtain, and solving the defect of the correction system in the prior art affecting the operation of the screen laying machine curtain.

[0027] (2) In this invention, the adjustment roller in the middle of the screen of the screen is used to correct the screen of the screen, and the correction is performed from the middle to both ends in sequence. Compared with the prior art, the correction from the middle can balance the forces at both ends of the screen of the screen, and avoid the defects of the screen of the screen being unbalanced or affecting the working effect due to the force deviation.

[0028] (3) In this invention, the angle between the adjusting rollers from the middle of the screen curtain of the screen laying machine to both ends and the horizontal plane gradually increases, and the distance between the adjusting rollers of the same power unit and the screen curtain of the screen laying machine on the same horizontal plane gradually decreases. This allows the adjusting rollers to slowly correct the screen curtain of the screen laying machine in batches. Compared with the prior art, this allows the screen curtain of the screen laying machine to gradually adapt to the adjustment effect of the adjusting rollers on the screen curtain of the screen laying machine, making the adjustment effect more uniform and ensuring the stable operation of the screen curtain of the screen laying machine.

[0029] (4) In this invention, the rotation speed of the adjusting roller gradually increases from the middle of the screen of the screen laying machine to both ends, and the correction effect on the screen of the screen laying machine gradually strengthens. Compared with the prior art, it can adapt to the correction force required by each part of the screen of the screen laying machine, match the correction, and ensure that the correction force of the adjusting roller meets the correction force required by the screen of the screen laying machine, thus avoiding the failure of correction due to insufficient correction force of the screen of the screen laying machine.

[0030] (5) In this invention, the rotation direction of the adjusting roller is opposite to the running direction of the screen laying machine curtain. When the screen laying machine curtain comes into contact with the adjusting roller, the rotation of the adjusting roller will bring a repulsive force to the screen laying machine curtain. Moreover, the velocity vector sum of the adjusting roller and the screen laying machine curtain is less than the vector sum when the speeds of the adjusting roller and the screen laying machine curtain are in the same direction. After the collision, the repulsion of the adjusting roller is more moderate. Compared with the prior art, it avoids the situation where the screen laying machine curtain is damaged or deviated more severely under violent collision. The adjusting roller can produce a gentle correction effect on the screen laying machine curtain, reducing the impact on the operation of the screen laying machine curtain.

[0031] (6) In this invention, the adjusting rollers correct the deviation in the order from the middle of the screen laying machine curtain to both ends. During the correction process from the middle of the screen laying machine curtain to both ends, the angle between the adjusting rollers and the horizontal plane gradually increases, and the distance between the adjusting rollers on both sides of the screen laying machine curtain gradually approaches. This allows the screen laying machine curtain to be gradually corrected to a straight state starting from the middle. Compared with the prior art, it is possible to slowly correct the deviation of the screen laying machine curtain starting from the middle, and the screen laying machine curtain can slowly change from a deviated state to a straight state. The screen laying machine curtain can ensure the correction effect while ensuring the uniformity of the correction process, which helps to correct the deviation under the high speed of the screen laying machine curtain and ensure the high speed operation effect of the screen laying machine curtain. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0034] Figure 2 This is a perspective view of the correction device according to a preferred embodiment of the present invention;

[0035] Figure 3 This is a structural diagram of the correction unit according to a preferred embodiment of the present invention;

[0036] In the diagram: 100, web laying machine body; 200, correction unit; 210, correction base; 211, arc-shaped groove; 220, rotating unit; 221, adjusting roller; 222, rotating motor; 223, support column; 230, angle adjustment motor. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] like Figure 1 As shown, a web-laying machine correction system includes:

[0042] The detection unit is used to detect the offset of the screen covering on the screen laying machine. The detection unit is positioned perpendicular to the horizontal plane where the screen covering is located, and its direction of action is also perpendicular to the horizontal plane. The detection unit includes optical sensors and inductive sensors, which confirm the position of the screen covering by detecting changes in light and electromagnetic field parameters, respectively.

[0043] The adjustment unit includes several power units and several adjusting rollers mounted on each power unit. The adjustment unit corrects the offset of the screen laying machine's curtain. The adjusting rollers are symmetrically distributed on both sides of the screen laying machine's curtain, with the adjusting rollers on each power unit located in the same vertical plane, and the running direction of the screen laying machine's curtain perpendicular to the vertical plane. Each power unit includes a motor and a transmission assembly. The motor provides rotational power to the adjusting rollers, and the transmission assembly transmits the power to the adjusting rollers, driving them to rotate. The adjusting rollers are coated with rubber or other materials of moderate hardness to prevent excessive hardness from causing wear on the screen laying machine's curtain during contact. The motor drives the adjusting rollers to rotate autonomously, while the adjusting rollers on both sides of the screen laying machine's curtain rotate in opposite directions.

[0044] The power unit drives several adjusting rollers to rotate. Each adjusting roller is equipped with an angle adjusting unit, which adjusts the angle between the roller and the horizontal plane. These angle adjusting units are located directly below the two sides of the screen laying machine when the screen is not shifted. Each angle adjusting unit is fixedly connected to one end of the adjusting roller. The power units are aligned on the same straight line. Each angle adjusting unit includes an angle adjusting motor and an angle transmission unit. The angle adjusting motor provides power for the angle adjustment of the adjusting roller, and the angle transmission unit transmits the power generated by the motor to the adjusting roller, thus driving it to adjust its angle. The angle adjusting units on each power unit provide consistent angle adjustment to the adjusting roller. The transmission assembly and the angle transmission unit are connected via a gear set.

[0045] The processing unit controls the rotation speed and horizontal angle of the adjusting rollers. First, it controls the adjusting roller in the middle of the screen laying machine's curtain. During adjustment, the angle between these rollers and the horizontal plane gradually increases from the center of the curtain towards both sides. Simultaneously, the distance between adjacent adjusting rollers on the same horizontal plane within the same power unit and the screen laying machine's curtain gradually decreases. The screen laying machine's curtain has a certain range of offset error during operation. When the detection unit detects that the curtain exceeds this range, it transmits the offset signal and offset value to the processing unit via an electrical signal.

[0046] The processing unit comprises a computer, signal transmission lines, and a control unit. The computer processes the offset value of the screen sheet from the detection unit, determines the correction range based on the offset value, and transmits this correction range to the control unit via the signal transmission lines for execution. The control unit connects to the motor and angle adjustment motor on the adjustment unit, and adjusts the rotational speed of the adjusting roller and its angle with the horizontal plane by controlling these motors respectively.

[0047] The adjustment unit is positioned between the two rollers that support and guide the screen laying machine's curtain, correcting any misalignment of the curtain between the two rollers. A large proportion of curtain misalignment occurs in the center, and this misalignment has a significant impact on the curtain during adjustment. Therefore, gentle and even adjustments are necessary to ensure the curtain can be corrected while operating at high speed.

[0048] The angle adjustment unit controls the angle of the adjusting roller, allowing it to contact and correct the screen covering during rotation. Correction begins from the middle of the screen covering, balancing the forces at both ends and preventing imbalances that could affect performance. The adjusting roller also corrects the screen covering from the side, avoiding direct contact. When correcting from below, the friction between the screen covering and the roller is reduced, allowing for easier horizontal movement of the screen covering during correction.

[0049] The angle between the adjusting roller and the horizontal plane gradually increases from the middle of the screen curtain of the screen laying machine towards both ends. The distance between the adjusting rollers of the same power unit and the screen curtain of the screen laying machine on the same horizontal plane gradually decreases. This allows the adjusting roller to slowly correct the screen curtain of the screen laying machine in batches. This enables the screen curtain of the screen laying machine to gradually adapt to the adjustment effect of the adjusting roller, making the adjustment effect more uniform and ensuring the stable operation of the screen curtain of the screen laying machine.

[0050] When not adjusted, the adjusting rollers are all horizontally positioned. The angle adjustment unit drives one end of the adjusting roller, causing it to rotate vertically in a circle around its connection point with the angle adjustment unit. When adjusting the angle, several adjusting rollers on the same power unit adjust at the same speed. In the uncorrected state, the adjusting rollers are horizontally placed. During their circular rotation, the distance between the two adjusting rollers and the horizontal plane of the screen laying machine's curtain continuously decreases until one adjusting roller touches the screen laying machine's curtain. When the two adjusting rollers adjust at the same speed, one adjusting roller contacts the screen laying machine's curtain, and under the rotation of the adjusting roller itself, the screen laying machine's curtain moves horizontally in the opposite direction of the offset.

[0051] Several detection units measure the difference between the centerline of the screen laying machine's curtain and the centerlines of several angle adjustment units, and send the difference data to the processing unit. The processing unit then controls the angle adjustment units to adjust the angle of the adjusting rollers. Since the angle adjustment units are located on both sides below the screen laying machine's curtain when it is not offset, the difference between the centerline of the curtain and the centerlines of the angle adjustment units is the offset value of the curtain. This allows for a direct comparison between the real-time centerline of the curtain and a fixed point to determine the offset of the curtain.

[0052] The density of the adjustment units is proportional to the distance between the center of the screen laying machine's curtain. The density of adjustment units located in the center of the curtain is lower than that of those located on either side. The density of the adjustment units is related to the correction force required for the screen laying machine's curtain; a higher density results in a stronger correction force. During the correction process, as the point of force application indicates, the closer the curtain is to the roller, the greater the correction force required. Distributing the density of the adjustment units according to the correction force improves the utilization rate of the units, minimizing resources while ensuring the screen laying machine's curtain performs its correction function correctly.

[0053] The angles of several adjusting rollers are symmetrically distributed around the center of the screen laying machine's curtain, and the adjustment processes of rollers with the same angle are performed simultaneously. The adjusting rollers located in the center of the screen laying machine's curtain are symmetrically distributed on both sides of the working direction of the curtain, and the final adjustment angle of each roller is symmetrical about the adjusting roller in the center of the curtain. This ensures a more uniform force on the screen laying machine's curtain during the correction process, guaranteeing the uniformity of the correction process and improving the stability of the screen laying machine's operation.

[0054] During the correction process, the power unit drives the adjusting roller to rotate in the opposite direction to the running direction of the screen laying machine's curtain, and the rotation speed is proportional to the running speed of the screen laying machine's curtain. When the screen laying machine's curtain comes into contact with the adjusting roller, because the adjusting roller's independent rotation is opposite to the running direction of the screen laying machine's curtain, the rotation of the adjusting roller will bring a repulsive force to the screen laying machine's curtain. Moreover, the vector sum of the velocities of the adjusting roller and the screen laying machine's curtain is less than the vector sum when the velocities of the adjusting roller and the screen laying machine's curtain are in the same direction. After the collision, the repulsion of the adjusting roller is more moderate, avoiding the situation where the screen laying machine's curtain is damaged or more seriously misaligned due to violent collision.

[0055] Several detection units monitor the contact between the screen laying machine's curtain and the adjusting rollers. Once contact is established, a contact signal is sent to the processing unit. Upon detection, the adjusting rollers correct the screen laying machine's curtain. Upon receiving the contact signal, the processing unit controls the adjusting rollers on both sides of the corrected area of ​​the screen laying machine's curtain, performing segmented correction. Correction is applied to both sides of the corrected area, and the angle between the adjusting rollers on each side and the horizontal plane is greater than the angle between the adjacent corrected adjusting rollers and the horizontal plane. This gentle correction ensures the smooth operation of the screen laying machine's curtain.

[0056] To achieve the above objectives, the second technical solution adopted by the present invention is: a method for using a web-laying machine correction system, based on a web-laying machine correction system, comprising the following steps:

[0057] S1: The detection unit detects the deviation of the screen curtain of the screen laying machine and sends the detection result to the processing unit. The processing unit controls the angle adjustment unit in the middle of the screen curtain of the screen laying machine. The angle adjustment unit adjusts the angle of the adjustment roller until the adjustment roller contacts the screen laying machine and corrects the deviation of the screen curtain of the screen laying machine. The rotation speed of the adjustment roller is opposite to the direction of the screen curtain of the screen laying machine.

[0058] S2: The processing unit controls the angle adjustment units on both sides of the angle adjustment unit in the middle of the screen of the screen laying machine in S1. The adjacent angle adjustment units of the middle angle adjustment unit adjust the angle of the adjustment roller to correct the screen laying machine. The angle between the middle adjustment roller and the horizontal plane is smaller than the angle of the adjacent adjustment roller.

[0059] S3: The processing unit continues to adjust in the order of the two sides of the already corrected angle adjustment unit until the two outermost angle adjustment units adjust the angle of the adjustment rollers, and the two outermost adjustment rollers are perpendicular to the horizontal plane.

[0060] S4: After the outermost adjusting roller in S3 is adjusted, the detection unit adjusts the degree of deviation of the screen laying machine to complete the detection.

[0061] In step S1, when the adjusting roller contacts the screen of the screen laying machine, the detection unit detects the correction distance after the screen contacts the adjusting roller, and adjusts the rotation speed of the adjusting roller based on the correction distance. If the adjusting roller in the middle of the screen contacts the screen, and the screen's rotation speed makes it difficult to correct the screen's alignment or the correction distance is too large, the rotation speed of the adjusting roller needs to be adjusted to ensure the screen can smoothly correct its alignment.

[0062] In S3, the rotational speed of the adjusting rollers on both sides of the already corrected adjusting roller is greater than the rotational speed of the adjacent already corrected adjusting roller. The rotational speed of the adjusting rollers gradually increases from the middle of the screen laying machine's curtain towards both ends, gradually strengthening the correction effect on the screen laying machine's curtain. This allows it to adapt to the correction force required by different parts of the screen laying machine's curtain, matching the correction and ensuring that the correction force of the adjusting rollers meets the required correction force of the screen laying machine's curtain, avoiding correction failure due to insufficient correction force. From the middle of the screen laying machine's curtain to both ends of the screen laying machine, both the rotational speed and the setting density of the adjusting rollers gradually increase.

[0063] Example 1

[0064] like Figure 2 and Figure 3 As shown, a correction and adjustment device for a web laying machine includes: a web laying machine body 100, and a plurality of correction units 200 respectively fixedly disposed on the web laying machine body 100.

[0065] Several correction units 200 are all located directly below the screen of the netting machine, and all of the correction units 200 are located on the same horizontal plane. All of the correction units 200 are arranged on the same straight line, parallel to the running direction of the screen of the netting machine.

[0066] Each correction unit 200 includes: a correction base 210, and a plurality of rotating units 220 and a plurality of angle adjusting motors 230 respectively disposed on the correction base 210; the correction base 210 is fixedly connected to the body 100 of the net laying machine, and a plurality of rotating units 220 are disposed on the upper surface of the correction base 210. The plurality of rotating units 220 are symmetrically distributed, and the plane of symmetry is the vertical plane where the center line of the net curtain running direction of the net laying machine is located. The plurality of rotating units 220 are all disposed on the same vertical plane, and the vertical plane where the plurality of rotating units 220 are located is perpendicular to the vertical plane where the center line of the net curtain running direction of the net laying machine is located.

[0067] Each rotating unit 220 includes: an adjusting roller 221, and a rotating motor 222 fixedly mounted on the adjusting roller 221; the adjusting roller 221 and the rotating motor 222 are coaxially arranged, and the rotating motor 222 drives the adjusting roller 221 to rotate, with the rotation axis coinciding with the axis of the adjusting roller 221. The correction base 210 is provided with a plurality of arc-shaped slots 211, and each rotating motor 222 is provided with a support column 223. The number of arc-shaped slots 211 and support columns 223 are the same and correspond one-to-one, and the arc-shaped slots 211 and support columns 223 are sleeved together.

[0068] Each angle adjustment motor 230 is fixedly connected to the correction base 210. The angle adjustment motor 230 is fixedly connected to the rotation motor 222. The number of angle adjustment motors 230 and rotation motors 222 are the same and correspond one-to-one. The angle adjustment motor 230 drives the rotation motor 222 to rotate. The rotation axis is perpendicular to the vertical plane where the rotation unit 220 is located. Several angle adjustment motors 230 are set on the lower sides of the screen of the net laying machine. The axis of the arc-shaped groove 211 coincides with the rotation axis of the angle adjustment motor 230.

[0069] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A web-laying machine's web-correction system, characterized in that, include: The detection unit is used to detect the offset of the screen curtain of the net laying machine; The adjustment unit includes: several power units and several adjustment rollers disposed on each power unit; the adjustment unit is used to correct the offset of the screen of the screen laying machine, the several adjustment rollers are respectively disposed symmetrically on both sides of the screen of the screen laying machine, the several adjustment rollers on each power unit are located in the same vertical plane, and the running direction of the screen of the screen laying machine is perpendicular to the vertical plane. The power unit drives several adjusting rollers to rotate. Each adjusting roller is equipped with an angle adjusting unit, which is used to adjust the angle between the adjusting roller and the horizontal plane. Several angle adjusting units are located directly below the two sides of the screen of the net laying machine when it is not offset. The angle adjusting unit is fixedly connected to one end of the adjusting roller. Several power units are located on the same straight line. The processing unit is used to control the rotation speed and the angle between the adjusting roller and the horizontal plane. The processing unit first controls the adjusting roller in the middle of the screen of the screen laying machine. When the several adjusting rollers are adjusted, the angle between them and the horizontal plane gradually increases from the middle of the screen of the screen laying machine to both sides. The distance between adjacent adjusting rollers of the same power unit and the screen of the screen laying machine on the same horizontal plane gradually decreases.

2. The web-laying machine correction system according to claim 1, characterized in that: When not adjusted, the adjusting rollers are all set horizontally. The angle adjusting unit drives one end of the adjusting roller, so that the adjusting roller rotates vertically around the connection point with the angle adjusting unit.

3. The web-laying machine correction system according to claim 1, characterized in that: The detection units detect the difference between the centerline of the screen laying machine and the centerline of the angle adjustment units, and send the difference data to the processing unit. The processing unit controls the angle adjustment units to adjust the angle of the adjustment roller.

4. The web-laying machine correction system according to claim 3, characterized in that: The density of the plurality of adjustment units is proportional to the distance between the center of the screen of the screen laying machine, and the density of the adjustment units located in the center of the screen of the screen laying machine is less than the density of the adjustment units located on both sides of the screen of the screen laying machine.

5. A web-laying machine correction system according to claim 3, characterized in that: The angles of the several adjusting rollers are symmetrically distributed according to the middle of the screen of the screen laying machine, and the adjusting processes of the adjusting rollers with the same angle are carried out simultaneously.

6. The web-laying machine correction system according to claim 1, characterized in that: When correcting the deviation, the power unit drives the adjusting roller to rotate in the opposite direction to the running direction of the screen laying machine, and the rotation speed is proportional to the running speed of the screen laying machine.

7. The web-laying machine correction system according to claim 1, characterized in that: Several detection units detect the contact between the screen laying machine curtain and the adjusting roller, and after the screen laying machine curtain contacts the adjusting roller, they send the contact signal to the processing unit.

8. A method of using a web-laying machine correction system, based on any one of claims 1-7, characterized in that, Includes the following steps: S1: The detection unit detects the deviation of the screen curtain of the screen laying machine and sends the detection result to the processing unit. The processing unit controls the angle adjustment unit in the middle of the screen curtain of the screen laying machine. The angle adjustment unit adjusts the angle of the adjustment roller until the adjustment roller contacts the screen laying machine and corrects the deviation of the screen curtain of the screen laying machine. The rotation speed of the adjustment roller is opposite to the direction of the screen curtain of the screen laying machine. S2: The processing unit controls the angle adjustment units on both sides of the angle adjustment unit in the middle of the screen of the net laying machine in S1. The angle adjustment units adjacent to the angle adjustment unit in the middle adjust the angle of the adjustment roller to correct the deviation of the net laying machine. The angle between the middle adjustment roller and the horizontal plane is smaller than the angle of the adjacent adjustment roller. S3: The processing unit continues to adjust in the order of the two sides of the already corrected angle adjustment unit until the two outermost angle adjustment units adjust the angle of the adjustment roller, and the two outermost adjustment rollers are perpendicular to the horizontal plane. S4: After the outermost adjusting roller in S3 is adjusted, the detection unit adjusts the degree of deviation of the screen laying machine to complete the detection.

9. A method of using the web-laying machine correction system according to claim 8, characterized in that: In step S1, when the adjusting roller contacts the curtain of the net laying machine, the detection unit detects the correction distance after the curtain of the net laying machine contacts the adjusting roller, and adjusts the rotation speed of the adjusting roller by the correction distance.

10. A method of using a web-laying machine correction system according to claim 8, characterized in that: In step S3, the rotational speed of the adjusting rollers on both sides of the already corrected adjusting roller is greater than the rotational speed of the adjacent already corrected adjusting roller.

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