Easy-to-operate windmill cloth spreading system and method

Abstract

The application discloses a windmill type cloth laying system and method which is easy to operate and belongs to the technical field of medical dressing production. The method comprises the following steps: S1, fixing the rear end of the fabric on a fixed rod, at this time, the fixed rod is located at the rear side of a cutting and winding wheel; S2, rotating the cutting and winding wheel forward until a predetermined number of turns, and then stopping, at the stopping moment, the fixed rod is located at the rear side of the cutting and winding wheel; S3, an operator cuts the rear part of the fabric roll on the cutting and winding wheel, and the cutting position is located below the fixed rod; S4, two operators pull the end above the cutting position of the fabric roll, press a control button, the cloth winding motor works, the magnetic powder brake does not work, at the same time, the two operators pull the fabric backward, when the second positioning position of the triggering positioning structure is reached, the cloth winding motor stops; S5, continuously pulling the fabric backward, until the fabric is pulled on a cloth cutting table, then the switching conveying device rotates upward, and the front end of the switching conveying device is connected with the rear end of an arc-shaped plate; continuously pulling the fabric backward until the fabric reaches a predetermined position and then stopping.

Description

Technical Field

[0001] This invention belongs to the field of medical dressing production technology, and specifically relates to an easy-to-operate windmill-type fabric laying system and method, which is particularly suitable for situations where the diameter of the cutting roll is greater than or equal to 3m. Background Technology

[0002] In the large-scale production of garments, face masks, shoe materials, medical dressings, and other items, stacked fabrics are often cut. Currently, two common methods of stacking fabric are: one is to use a fabric cutting machine to cut the fabric multiple times, which is inefficient and time-consuming; the other is to use a windmill-type fabric rolling machine to first wind all the material into a roll, and then cut it from the middle. The second method can be found in the following patent:

[0003] For example, patent application number CN202520940849.0 discloses a windmill-type fabric spreading device, including a frame and a fabric rolling wheel rotatably mounted on it. The fabric rolling wheel includes a rotating shaft on the frame arranged in a left-right direction, a motor on the frame for driving the rotating shaft to rotate, and a cutting wheel coaxially mounted on the rotating shaft. The cutting wheel includes two sets of spokes arranged side by side and multiple crossbars between the two sets of spokes. Each set of spokes includes multiple spokes evenly distributed and arranged radially along the rotating shaft. The two sets of spokes are arranged one-to-one. The multiple crossbars are located on the same circle concentric with the rotating shaft. The crossbars are arranged in a left-right direction and are located between corresponding two spokes. The rotating shaft has a slip ring coaxially mounted at one end, and a brush that mates with the slip ring is mounted on the frame. The spokes are hollow, with a lead screw mounted inside along their direction and a sliding hole on their inner side along their direction. A servo motor is mounted inside the spoke and at the end of the lead screw. The servo motor is electrically connected to the slip ring. A slide block is slidably mounted on the inner side of the spoke, and the outer end of the slide block passes inward through the sliding hole and is threadedly connected to the lead screw. The servo motors in the corresponding two spokes are driven synchronously. The two ends of the crossbar are respectively mounted on the slide blocks on the corresponding two spokes. The servo motor is used to move the crossbar toward the rotating shaft so that the outer diameter of the fabric roll remains the same when winding the fabric.

[0004] After winding, two operators pull the cut end of the fabric roll taut and move it backward to lay the fabric flat on the cutting table and separate it from the cutting roll. When pulling the fabric, due to the weight of the cutting roll (and the fabric on it, especially when the diameter of the cutting roll is large) and the resistance of the fabric winding motor (which drives the cutting roll to rotate), it takes a lot of force to make the cutting roll rotate. Usually, the cutting roll does not rotate, and the fabric slides on the surface of the cutting roll. Since the cutting roll is a cage-like structure, the fabric slides on multiple crossbars, resulting in fabric wear and disordered movement (such as between two crossbars, causing multiple layers of fabric to spread out, fold, wrinkle, misalign, etc.), which is detrimental to subsequent fabric laying. Summary of the Invention

[0005] To address the aforementioned problems, embodiments of the present invention provide an easy-to-operate windmill-style fabric laying system and method. During pulling, the fabric winding motor briefly starts to ensure that the cutting roller rotates following the pulled fabric, saving effort. Additionally, a transfer conveyor device is provided to ensure that the fabric can smoothly slide onto the cutting table. The technical solution is as follows: On one hand, embodiments of the present invention provide a fabric cutting system, which includes an unwinding device, a fabric winding device, a transfer conveyor device, and a cutting table arranged sequentially from front to back. The cutting table is arranged in a front-to-back direction and is spaced apart from the fabric winding device. The fabric winding device includes a fabric winding frame, a cutting and winding wheel rotatably arranged on the fabric winding frame, and an arc-shaped plate directly below the cutting and winding wheel. The cutting and winding wheel includes a cutting and winding wheel shaft arranged on the fabric winding frame in a left-to-right direction, a fabric winding motor for driving the cutting and winding wheel shaft to rotate, two spoke wheels arranged side by side on the cutting and winding wheel shaft, and N crossbars between the two spoke wheels, one of which serves as a fixing rod. The fabric winding device also includes control buttons, a magnetic powder brake, and a positioning structure. The control buttons are located on the rear side of the fabric winding frame and next to the cutting position. One end of the drive shaft of the fabric winding motor is connected to the cutting and winding wheel shaft, and the other end is provided with a magnetic powder brake. The transfer conveyor device is located on the front side of the cutting table and can rotate upward. During the pulling process, the transfer conveyor... The device rotates upwards to connect with the rear end of the arc-shaped plate; the positioning structure is located between the cutting roll wheel and the fabric winding frame and has two positioning positions. When the first positioning position is triggered, the fixing rod is located behind the cutting roll wheel; when the fabric is manually pulled and the control button is pressed, if the second positioning position is triggered, the fabric winding motor stops working; the angle between the first and second positioning positions is 5-30°; the fabric winding motor 33 can rotate in both directions; during winding, the cutting roll wheel rotates forward, and the fabric winding motor and magnetic powder brake work until it rotates a predetermined number of times and triggers the first positioning position of the positioning structure, at which point the cutting roll wheel stops rotating; when the fabric is pulled and the control button is pressed, the fabric winding motor works, the magnetic powder brake does not work, and the cutting roll wheel is driven to rotate backward by the fabric winding motor. When the second positioning position of the positioning structure is triggered, the fabric winding motor stops working, and the cutting roll wheel is manually driven to rotate backward.

[0006] In this embodiment of the invention, the positioning structure includes a photoelectric sensor and two positioning plates. The photoelectric sensor cooperates with the positioning plates and can control the fabric winding motor and the magnetic powder brake. The photoelectric sensor is mounted on the fabric winding machine frame in a left-right direction, located on the left or right side of the cutting roll. The two positioning plates are fixed on the corresponding sides of the cutting roll and are respectively a winding positioning plate and an assist positioning plate. The winding positioning plate and the assist positioning plate are located on a circle concentric with the axis of the cutting roll. The winding positioning plate is used to achieve the positioning of the first positioning position and is located on the upper part of the cutting roll. The assist positioning plate is used to achieve the positioning of the second positioning position and is located in front of the winding positioning plate.

[0007] In this embodiment of the invention, the diameter of the cutting wheel is greater than or equal to 3m; N reinforcing rods are provided between the two spoked wheels. The spoked wheel includes an inner ring, an outer ring, and N spokes; the inner ring and the outer ring are coaxially arranged with the shaft of the cutting wheel and are fixedly connected to the middle part and the end away from the shaft of the N spokes, respectively; multiple spokes are evenly distributed, and the spokes of the two spoked wheels are arranged one-to-one; N crossbars are located on a circle concentric with the shaft of the cutting wheel; the reinforcing rods are arranged in the left-right direction, located between two corresponding spokes, in the middle of the spokes, and fixedly connected to the spokes; the spokes are arranged radially along the spoked wheel, one end of which is fixed to the shaft of the cutting wheel, the middle part of which is fixedly connected to the inner ring, and the other end of which is fixedly connected to the outer ring. It is a hollow structure, with a lead screw arranged inside along its direction, a sliding hole arranged inside along its direction, and a sliding seat slidably arranged inside; the outer end of the sliding seat passes through the sliding hole and is threadedly connected to the lead screw; the crossbars The cutting and winding wheel is arranged in a left-right direction, located between two corresponding spokes, with its left and right ends fixed to the slides of the corresponding two spokes respectively. The cutting and winding wheel shaft includes an outer sleeve, an inner drive shaft coaxially arranged inside the outer sleeve, a servo motor at the left or right end of the outer sleeve, and two bevel gears arranged side by side on the inner shaft. The spoke wheels are fixed to the outer sleeve. The left and right ends of the outer sleeve are rotatably mounted on the fabric winding frame, with its left or right end connected to the fabric winding motor and its other end fixedly mounted with the servo motor. The inner drive shaft is rotatably arranged inside the outer sleeve, with its end connected to the servo motor. The two bevel gears are located at the two spoke wheels respectively, and are coaxially arranged with the inner drive shaft. The left or right side of the fabric winding frame is provided with a brush slip ring, which is sleeved outside the brush of the servo motor and is used to control the servo motor and supply power to the servo motor. The inner end of the lead screw passes through the outer sleeve, and the gear at its inner end meshes with the corresponding bevel gear.

[0008] Preferably, in this embodiment of the invention, the outer sleeve includes a coarse cylindrical section in the middle and two thin cylindrical sections at both ends. The outer diameter of the coarse cylindrical section is larger than the outer diameter of the thin cylindrical sections. The thin cylindrical sections are rotatably mounted on the fabric winding machine frame. The inner diameter of the coarse cylindrical section is larger than the diameter of the bevel gears. The two bevel gears are located at both ends of the coarse cylindrical section. Two spoke wheels are fixed at both ends of the coarse cylindrical section. Two discs are coaxially fixed on the coarse cylindrical section. The two discs are arranged side by side and are located at the two spoke wheels. The discs are located on the inner side of the corresponding spoke wheels, and the positioning plate is located on the outer side of one of the discs.

[0009] In this embodiment of the invention, the arc-shaped plate is arranged along the front-to-back direction, with a gap between its rear end and the cutting table, and is located in front of and below the cutting table. Its front part is curved upward to the front of the cutting roll, and its upper surface is smooth. A traction roller is provided directly above its front end, and its rear part is bent upward to form a guide slope. The traction roller is arranged along the left-to-right direction. The fabric moves upward to the front side of the traction roller, passes over the upper side of the traction roller, and slopes downward to the lower side of the cutting roll. The guide slope is arranged obliquely upward from front to back, with a smooth upper surface, and is located in the rear of and below the cutting roll. The distance between its rear end and the cutting table is 0.5-1.0m.

[0010] The transfer and conveying device in this embodiment of the invention includes a docking plate and two driving structures. The docking plate is vertically arranged, with its upper end located above the cutting table. Its upper part is rotatably mounted at the front end of the cutting table via a left-right rotating shaft, and a driving rotating shaft is located at its lower rear side along the left-right direction. The two driving structures are arranged side by side, both located below the cutting table, and are used to drive the docking plate to rotate upward. Each driving structure includes a slide rail, a slide seat slidably mounted on the slide rail, a cylinder directly behind the slide rail, and a connecting rod hinged between the slide seat and the driving rotating shaft. The slide rail is mounted on the ground along the front-back direction, and the cylinder is mounted on the ground along the front-back direction with its telescopic rod's front end connected to the rear end of the slide seat. The two cylinders are driven synchronously. The connecting rod is mounted along the front-back direction, with its front end rotatably connected to the driving rotating shaft, and its rear end hinged to the front end of the slide seat via a left-right rotating shaft. During the pulling process, the cylinder extends. The docking plate rotates upward, with its front end connecting to the rear end of the guide slope, and the plate is coplanar with the guide slope.

[0011] Furthermore, in this embodiment of the invention, a pressure bar is provided directly above the front of the fabric cutting table; the pressure bar is arranged in the left-right direction and is located directly above the stacked fabric, and it can move up and down; when the pressure bar moves downward, it presses against the upper side of the stacked fabric; a circular saw bracket for placing an electric circular saw is provided on the rear side of the fabric rolling machine frame, and the circular saw bracket is located below the control button, and both the circular saw bracket and the control button are located on the rear left or right right side of the fabric rolling machine frame.

[0012] On the other hand, embodiments of the present invention also provide a method for laying fabric, the method comprising: S1 Initial Fixing: The operator drags the fabric along the curved plate, passing directly below the cutting roll, and fixes the rear end of the fabric to the fixing rod. At this time, the operator is located between the curved plate and the cutting table, and the fixing rod is located behind the cutting roll.

[0013] S2 winding: The cutting roll rotates forward, the fabric winding motor and magnetic powder brake work, and it stops after a predetermined number of turns. When it stops, the fixing rod is located behind the cutting roll.

[0014] S3 Cutting: An operator cuts the rear of the fabric roll on the cutting wheel, with the cut position located adjacent to and below the fixing bar.

[0015] S4 Assisted Pulling: Two operators pull one end of the fabric roll above the cut point, and the other end of the fabric roll falls down onto the curved plate. Press the control button, the fabric rolling motor works, the magnetic powder brake does not work, and at the same time, the two operators pull the fabric backward. When the second positioning position of the positioning structure is triggered, the fabric rolling motor stops. When pulling the fabric, the two operators are located on the left and right sides of the cutting table respectively.

[0016] S5 Manual Pulling: Continue pulling backward, the cutting roller rotates as the fabric moves, until the fabric is pulled onto the cutting table, the transfer conveyor rotates upward and its front end connects with the rear end of the arc plate; continue pulling backward until the fabric is completely placed on the cutting table and reaches the predetermined position, then stop.

[0017] Specifically, in step S3, an electric circular saw is used to cut the coil by moving left and right; in step S4, the cutting wheel rotates 10-35° and then stops.

[0018] In step S2, during the initial winding, the fabric winding motor operates while the magnetic powder brake does not operate; when the set requirement is reached, the magnetic powder brake operates to control the winding tension; when winding is about to be completed, the magnetic powder brake decelerates the fabric winding motor; when winding is completed, the magnetic powder brake brakes the fabric winding motor.

[0019] The beneficial effects of the technical solution provided by the embodiments of the present invention are as follows: (1) When pulling, the fabric rolling motor starts briefly to ensure that the cutting roll wheel rotates with the pulled fabric, saving effort; (2) A rotatable transfer conveyor that can connect with the arc plate is provided to ensure that the fabric can slide smoothly to the cutting table; (3) Set up a magnetic powder brake to ensure the tension during winding and the accuracy of positioning when winding is completed (the cutting wheel decelerates in advance). (4) By using a servo motor to drive N crossbars simultaneously, the structure is simpler and the synchronization is better. Attached Figure Description

[0020] Figure 1 This is a partial structural schematic diagram of the easy-to-operate windmill-type fabric laying system provided in an embodiment of the present invention; Figure 2 yes Figure 1 A structural diagram of the fabric during initial stretching; Figure 3 yes Figure 1 A structural diagram illustrating the process of stretching the fabric; Figure 4 yes Figure 1 A schematic diagram of the structure during the fabric stretching process and when the connecting plate rises; Figure 5 yes Figure 4 Enlarged view of the joint plate and cutting table; Figure 6 This is a schematic diagram of the fabric rolling device; Figure 7 yes Figure 6 A magnified view of a portion of the spoked wheel; Figure 8 This is a schematic diagram of the spoked wheel.

[0021] In the diagram: 1. Fabric, 2. Fabric roll frame, 3. Cutting roll wheel, 4. Arc plate, 5. Fabric cutting table, 6. Button plate, 7. Control button, 8. Traction roller, 9. Guide slope, 10. Pressure bar, 11. Drive structure, 12. Positioning structure, 13. Magnetic powder brake. 21 Inner ring, 22 Outer ring, 23 Spokes, 24 Reinforcing bar, 25 Disc; 31 Cutting roll shaft, 32 Spoke wheel, 33 Fabric rolling motor, 34 Crossbar, 35 Servo motor, 36 Brush slip ring, 37 Fixing rod; 51. Slide rail, 52. Slide block, 53. Cylinder, 54. Connecting rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Example 1 See Figure 1-8 Example 1 provides an easy-to-operate windmill-type fabric laying system, which includes an unwinding device, a fabric rolling device, a transfer conveyor device, and a fabric cutting table 5 arranged sequentially from front to back. The fabric cutting table 5 is arranged in the front-to-back direction and has a gap between it and the fabric rolling device.

[0024] The fabric winding device includes a fabric winding frame 2, a cutting roller 3, an arc plate 4, control buttons 7, a magnetic powder brake 13, and a positioning structure 12. The cutting roller 3 is positioned horizontally and rotates on the fabric winding frame 2; its diameter is greater than or equal to 3m. The arc plate 4 is positioned vertically, directly below the cutting roller 3. Its rear end has a gap with the cutting table 5 (to facilitate operator operation) and is located below and in front of the cutting table 5. Its front part curves upwards to the front of the cutting roller 3, and its upper surface is smooth. A traction roller 8 is positioned directly above its front end, and its rear part curves upwards to form a guide slope 9. The traction roller 8 is positioned horizontally. The fabric 1 rises to the front of the traction roller 8, passes over the upper side of the traction roller 8, and slopes downwards and backwards to the lower side of the cutting roller 3. The guide slope 9 is positioned upwards and backwards, with a smooth upper surface. It is located below and behind the cutting roller 3, and the distance between its rear end and the cutting table 5 is 0.5-1.0m.

[0025] The cutting and rolling wheel 3 includes a cutting and rolling wheel shaft 31, a fabric rolling motor 33, two spoked wheels 32, and N crossbars 34. The cutting and rolling wheel shaft 31 is arranged horizontally and rotates on the fabric rolling frame 2. The two spoked wheels 32 are arranged side-by-side on the cutting and rolling wheel shaft 31, located on the left and right sides respectively. The spoked wheels 32 are coaxial with the cutting and rolling wheel shaft 31, and their diameter gradually decreases with increasing rotation to ensure a consistent outer diameter of the fabric roll. The N crossbars 34 are located between the two spoked wheels 32, evenly distributed around the cutting and rolling wheel shaft 31, and arranged horizontally. N is an integer greater than or equal to 6, specifically, N is 12. One of the crossbars 34 serves as a fixing rod 37, which has a clamping structure to fix one end of the fabric 1, and its height (specifically 0.8-1.2m) should be convenient for operation. Specifically, the clamping structure consists of multiple clamps arranged side-by-side. The cutting wheel axle 31, two spoked wheels 32, and N crossbars 34 constitute a circular cage structure with a variable diameter.

[0026] The control button 7 is located on the rear side of the fabric rolling frame 2, next to the cutting position (specifically, the fixed rod 37), and controls the fabric rolling motor 33. The fabric rolling motor 33 drives the cutting roll shaft 31 to rotate. One end of its drive shaft is connected to the cutting roll shaft 31 (specifically via a belt), and the other end is equipped with a magnetic powder brake 13 (specifically coaxially fixed), which can rotate in both directions (i.e., it can drive the cutting roll 3 to rotate forward and backward). Specifically, the fabric rolling motor 33 and the magnetic powder brake 13 are both located below the arc plate 4, arranged side by side, and fixed to the ground.

[0027] The transfer conveyor is located in front of the cutting table 5 and can rotate upwards. Specifically, the transfer conveyor includes a docking plate 6 and two drive structures 11. The docking plate 6 is vertically arranged, with its upper end above the cutting table 5. Its upper part is rotatably mounted at the front end of the cutting table 5 via a left-right rotating shaft, and its lower rear part is equipped with a drive shaft along the left-right direction. The two drive structures 11 are arranged side by side, both located below the cutting table 5, specifically below the left and right sides of the cutting table 5, respectively, and are used to drive the docking plate 6 to rotate upwards. The drive structure 11 includes a slide rail 51, a slide block 52, a cylinder 53, and a connecting rod 54. The slide rail 51 is located on the ground along the front-back direction and is directly below the cutting table 5. The slide block 52 is slidably mounted on the slide rail 51 and can move back and forth. The cylinder 53 is located on the ground along the front-back direction and is located directly behind the slide rail 51, with the front end of its telescopic rod connected to the rear of the slide block 52. Two cylinders 53 are driven synchronously. A connecting rod 54 is hinged between the slide 52 and the drive shaft, arranged in the front-rear direction. Its front end is rotatably connected to the drive shaft, and its rear end is hinged to the front of the slide 52 via a left-right rotating shaft. During the pulling process, the cylinders 53 extend, and the slide 52 slides forward. The docking plate 6 rotates upward, its front end connecting with the rear end of the guide ramp 9, and it is coplanar with the guide ramp 9.

[0028] The positioning structure 12 is located between the cutting roll 3 and the fabric winding frame 2 and has two positioning positions. When the first positioning position is triggered, the fixing rod 37 is located behind the cutting roll 3 (this is the starting and ending winding position). When the fabric 1 is manually pulled and the control button 7 is pressed (the fabric winding motor 33 operates), if the second positioning position is triggered, the fabric winding motor 33 stops working. In this patent, when the operator pulls the fabric 1, due to the weight of the cutting roll 3 and the resistance of the fabric winding motor 33, a very large force is required to rotate the cutting roll 3. Usually, the cutting roll 3 does not rotate, and the fabric 1 slides on the surface of the cutting roll 3; however, this is not ideal. This patent addresses this by briefly starting the fabric winding motor 33 to rotate in the opposite direction (the motor speed is very slow at the initial start, matching the pulling speed). Once the cutting roll 3 starts rotating, the applicant found that only a small force is needed for the cutting roll 3 to rotate backward following the pulling of the fabric 1. The angle between the first and second positioning positions is 5-30° (preferably 5-20°). Within this angle range, the operator can easily rotate the cutting wheel 3 one revolution, and the speed of the cutting wheel 3 is matched with the pulling speed (the fabric 1 and the cutting wheel 3 will not move relative to each other).

[0029] During winding, the cutting wheel 3 rotates forward (based on the rotation direction of the upper part of the cutting wheel 3, the same below), and the fabric winding motor 33 and the magnetic powder brake 13 work. When the predetermined number of rotations is reached and the first positioning position of the positioning structure 12 is triggered, the cutting wheel 3 stops rotating. When the cut fabric 1 is pulled and the control button 7 is pressed, the fabric winding motor 33 works, the magnetic powder brake 13 does not work, and the cutting wheel 3 is driven to rotate backward by the fabric winding motor 33 (at the same time, the fabric 1 is also pulled backward manually, and the fabric winding motor 33 is the main driving force in this process). When the second positioning position of the positioning structure 12 is triggered, the fabric winding motor 33 stops working, and the cutting wheel 3 is driven to rotate backward manually.

[0030] Example 2 See Figure 1-4 Example 2, along with Example 6, provides an easy-to-operate windmill-style fabric laying system. Its structure is basically the same as that of Example 1, except that in this example, a photoelectric sensor and two positioning plates are used. The photoelectric sensor works in conjunction with the positioning plates and controls the fabric winding motor 33 and the magnetic powder brake 13. The photoelectric sensor is mounted on the fabric winding frame 2 along the left-right direction, located on the left or right side of the cutting roll 3, directly opposite the circle containing the positioning plates. Both positioning plates are fixed to the corresponding side (left or right) of the cutting roll 3, and are respectively the winding positioning plate and the assist positioning plate. The winding positioning plate and the assist positioning plate are located on a circle concentric with the cutting roll shaft 31. The winding positioning plate is used to achieve the first positioning position and is located above the cutting roll 3. The assist positioning plate is used to achieve the second positioning position and is located in front of the winding positioning plate (specifically, below and in front). Of course, this patent can also use other positioning methods, such as setting two photoelectric sensors and two positioning trigger mechanisms.

[0031] Example 3 See Figure 6-8Example 3 provides an easy-to-operate windmill-style fabric spreading system, whose structure is basically the same as that of Example 2, except that N reinforcing rods 24 are provided between the two spoke wheels 32 in this example. The spoke wheel 32 includes an inner ring 21, an outer ring 22, and N spokes 23. Both the inner ring 21 and the outer ring 22 are coaxially arranged with the cutting wheel shaft 31, and are respectively fixedly connected to the middle of the N spokes 23 and the end away from the cutting wheel shaft 31; both are circular rings. The reinforcing rods 24 and the crossbars 34 can both be rectangular rods. The multiple spokes 23 are evenly distributed, with one-to-one correspondence between the spokes 23 of the two spoke wheels 32. The N crossbars 34 are located on a circle concentric with the cutting wheel shaft 31, each corresponding to one of the N spokes 23, and they move synchronously. The reinforcing rod 24 is arranged in the left-right direction, positioned between two corresponding spokes 23, located in the middle of the spokes 23, and fixedly connected to the spokes 23. It should not affect the movement of the crossbar 34. The spokes 23 are arranged radially along the spoke wheel 32. One end is fixed to the cutting wheel shaft 31, the middle part is fixedly connected to the inner ring 21, and the other end is fixedly connected to the outer ring 22. They are hollow structures with a lead screw inside along their direction, a sliding hole on their inner side along their direction, and a sliding seat, specifically a rectangular tube structure, sliding along their inner side. The outer end of the sliding seat passes through the sliding hole and is threadedly connected to the lead screw. The lead screw is rotatable, and all lead screws are driven synchronously. The crossbar 34 is arranged in the left-right direction, positioned between two corresponding spokes 23, with its left and right ends fixed to the sliding seats of the corresponding two spokes 23. It can move radially along the spoke wheel 32. In this patent, 2N lead screws synchronously drive the movement of N crossbars 34.

[0032] Example 4 See Figure 6 Example 4 provides an easy-to-operate windmill-type fabric spreading system, whose structure is basically the same as that of Example 3, except that: the cutting and rolling wheel shaft 31 in this example includes an outer sleeve, an inner drive shaft, a servo motor 35, and two bevel gears. The left and right ends of the outer sleeve are rotatably mounted on the fabric rolling frame 2, with its left or right end connected to the fabric rolling motor 33, and its other end fixedly mounted on the servo motor 35. Spoke wheels 32 are fixed to the outer sleeve. The inner drive shaft is rotatably mounted inside the outer sleeve (through multiple bearings), coaxially with the outer sleeve, and its end (left or right end) is connected to the servo motor 35. Specifically, the servo motor 35 is arranged in a left-right direction, and its output shaft is coaxially fixed to the inner drive shaft. The two bevel gears are located at the two spoke wheels 32, arranged side-by-side. The bevel gears are coaxially fixed to the inner rotating shaft. A brush slip ring 36 (on the same side as the servo motor 35) is provided on the left or right side of the fabric rolling frame 2. The brush slip ring 36 is sleeved on the outside of the brushes of the servo motor 35 and is used to control the servo motor 35 and supply power to the servo motor 35. The inner end of the lead screw passes through the outer sleeve, and the gear at its inner end meshes with the corresponding bevel gear. Thus, this patent drives N crossbars 34 to move synchronously through one servo motor 35.

[0033] Example 5 See Figure 6 Example 5 provides an easy-to-operate windmill-type fabric spreading system, whose structure is basically the same as that of Example 2, except that: the outer sleeve in this example includes a coarse cylindrical section in the middle and two thin cylindrical sections at both ends. The outer diameter of the coarse cylindrical section is larger than the outer diameter of the thin cylindrical sections. The thin cylindrical sections are rotatably mounted on the fabric rolling frame 2, and a servo motor 35 is located at the end of one of the thin cylindrical sections. The inner diameter of the coarse cylindrical section is larger than the diameter of the bevel gears, and the two bevel gears are located at the two ends of the coarse cylindrical section. Two spoke wheels 32 are fixed to the two ends of the coarse cylindrical section, and two discs 25 are coaxially fixed at the left and right ends of the coarse cylindrical section. The two discs 25 are arranged side by side and are located at the two spoke wheels 32. The discs 25 are located inside the corresponding spoke wheels 32 and cannot affect the movement of the crossbar 34. A positioning plate is located outside one of the discs 25.

[0034] Example 6 See Figure 1-5 Example 6 provides an easy-to-operate windmill-style fabric laying system, whose structure is basically the same as that of Example 1, except that a pressure bar 10 is provided directly above the front of the cutting table 5 in this example. The pressure bar 10 is arranged in the left-right direction and is located directly above the stacked fabric 1. It can move up and down (driven by two cylinders, which are driven synchronously and are located on the left and right sides of the cutting table 5 respectively. The cylinders are arranged vertically upward and the upper end of their telescopic rods is fixedly connected to the end of the pressure bar 10). Its height cannot be too high so as to pull the fabric 1 backward. When the pressure bar 10 moves downward, it presses against the upper side of the stacked fabric 1.

[0035] Example 7 Example 7 provides an easy-to-operate windmill-type fabric laying system, the structure of which is basically the same as that of Example 1. The difference is that: in this example, the rear side of the fabric rolling frame 2 is provided with a circular saw bracket for placing an electric circular saw (for cutting fabric 1). The circular saw bracket is located below the control button 7 and both the circular saw bracket and the control button 7 are located on the rear left or right side of the fabric rolling frame 2.

[0036] Example 8 Example 8 provides an easy-to-operate windmill-style fabric laying system, the structure of which is basically the same as that of Example 1, except that: the fabric 1 in this example is a non-woven fabric with a basis weight of 130 g / m². 2 The winding diameter is 3.49m and the number of winding layers is 27; that is, the length of the cut fabric 1 is 10.96m. For every rotation of the cutting wheel 3, the circumference of the circle formed by the crossbar 34 decreases by 1mm.

[0037] Example 9 See Figure 1-8 Example 9 provides a fabric laying method using the easy-to-operate windmill-type fabric laying system disclosed in Examples 1-8. The method includes: S1 Initial Fixing: The operator drags the fabric 1 along the arc plate 4, passing directly below the cutting roll 3, and fixes the rear end of the fabric 1 to the fixing rod 37. At this time, the operator is located between the arc plate 4 and the cutting table 5, and the fixing rod 37 is located on the rear side of the cutting roll 3 (specifically, on the lower rear side).

[0038] S2 winding: The cutting roll 3 rotates forward, the fabric winding motor 33 and the magnetic powder brake 13 work, and stop after a predetermined number of turns (such as 27 turns). When it stops, the fixing rod 37 is located on the rear side of the cutting roll 3.

[0039] Specifically, during the initial winding, the fabric winding motor 33 operates (at a slow speed), and the magnetic powder brake 13 does not operate. When the set requirements are met (such as time, tension, or speed, the rotation speed of the fabric winding motor 33 is very fast), the magnetic powder brake 13 operates to control the winding tension. When winding is complete (e.g., when a predetermined number of turns - 1 turn has been wound, such as when 26 turns have been wound), the magnetic powder brake 13 decelerates the fabric winding motor 33 to ensure accurate braking position. When winding is complete, the magnetic powder brake 13 brakes the fabric winding motor 33. Therefore, the magnetic powder brake 13 of this patent has three functions: tension adjustment, braking, and deceleration.

[0040] S3 Cutting: An operator (located between the curved plate 4 and the cutting table 5) cuts the rear part of the fabric roll on the cutting roller 3, with the cut position located adjacent to and below the fixed rod 37. Specifically, a circular saw is used to cut the fabric by moving left and right.

[0041] S4 Assisted Pulling: Two operators (located between the curved plate 4 and the cutting table 5, respectively pulling the left and right ends of the fabric 1) pull one end of the fabric roll above the cut point, causing the other end of the fabric roll to fall downwards onto the curved plate 4. Control button 7 is pressed, activating the fabric winding motor 33 and deactivating the magnetic powder brake 13. Simultaneously, the two operators pull the fabric 1 backwards. When the second positioning position of the positioning structure 12 is triggered (at this time, the cutting roller 3 rotates 10-35° relative to the winding stop position), the fabric winding motor 33 stops. While pulling the fabric 1, the two operators are positioned on the left and right sides of the cutting table 5 to facilitate backward movement along the cutting table 5.

[0042] S5 Manual Pulling: Continue pulling backward. The cutting roller 3 rotates as the fabric 1 moves. After the fabric 1 is pulled onto the cutting table 5, the transfer conveyor rotates upward (automatic control (delayed action after pressing control button 7) or manual control) and its front end connects with the rear end of the curved plate 4. Continue pulling backward until the fabric 1 is completely placed on the cutting table 5 and reaches the predetermined position, then stop.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An easy-to-operate windmill-type fabric laying system, comprising an unwinding device, a fabric rolling device, a transfer conveyor device and a cutting table (5) arranged sequentially from front to back, wherein the cutting table (5) is arranged in the front-to-back direction and there is a gap between it and the fabric rolling device, wherein the fabric rolling device includes a fabric rolling frame (2), a cutting roll wheel (3) rotatably arranged on the fabric rolling frame (2) and an arc plate (4) directly below the cutting roll wheel (3); The cutting and rolling wheel (3) includes a cutting and rolling wheel shaft (31) arranged on the fabric rolling frame (2) in the left-right direction, a fabric rolling motor (33) for driving the cutting and rolling wheel shaft (31) to rotate, two spoke wheels (32) arranged side by side on the cutting and rolling wheel shaft (31), and N crossbars (34) between the two spoke wheels (32), wherein one crossbar (34) serves as a fixing rod (37); characterized in that, The fabric rolling device also includes a control button (7), a magnetic powder brake (13), and a positioning structure (12). The control button (7) is located on the rear side of the fabric rolling frame (2) and next to the cutting position. One end of the drive shaft of the fabric rolling motor (33) is connected to the cutting and rolling wheel shaft (31), and the other end is equipped with a magnetic powder brake (13). The transfer conveyor is located on the front side of the cutting table (5) and can rotate upward. During the pulling process, the transfer conveyor rotates upward to connect with the rear end of the arc plate (4). The positioning structure (12) is located between the cutting roll (3) and the fabric rolling frame (2) and has two positioning positions. When the first positioning position is triggered, the fixing rod (37) is located on the rear side of the cutting roll (3). When the fabric (1) is manually pulled and cut and the control button (7) is pressed, if the second positioning position is triggered, the fabric rolling motor (33) stops working. The angle between the first positioning position and the second positioning position is 5-30°. The fabric winding motor (33) can rotate in both directions. When winding, the cutting wheel (3) rotates forward, and the fabric winding motor (33) and the magnetic powder brake (13) work. When the predetermined number of rotations is reached and the first positioning position of the positioning structure (12) is triggered, the cutting wheel (3) stops rotating. When the cut fabric (1) is pulled and the control button (7) is pressed, the fabric winding motor (33) works, the magnetic powder brake (13) does not work, and the cutting wheel (3) is driven to rotate backward by the fabric winding motor (33). When the second positioning position of the positioning structure (12) is triggered, the fabric winding motor (33) stops working, and the cutting wheel (3) is manually driven to rotate backward.

2. The easy-to-operate windmill-type fabric laying system according to claim 1, characterized in that, The positioning structure (12) includes a photoelectric sensor and two positioning plates. The photoelectric sensor cooperates with the positioning plates and can control the fabric rolling motor (33) and the magnetic powder brake (13). The photoelectric sensor is located on the fabric rolling frame (2) in the left-right direction, on the left or right side of the cutting roll (3). The two positioning plates are fixed on the corresponding side of the cutting roll (3) and are respectively the winding positioning plate and the assist positioning plate. The winding positioning plate and the assist positioning plate are located on a circle concentric with the cutting roll shaft (31). The winding positioning plate is used to realize the positioning of the first positioning position and is located on the upper part of the cutting roll (3). The assist positioning plate is used to realize the positioning of the second positioning position and is located in front of the winding positioning plate.

3. The easy-to-operate windmill-type fabric laying system according to claim 2, characterized in that, The diameter of the cutting wheel (3) is greater than or equal to 3m; N reinforcing rods (24) are provided between two spoked wheels (32). The spoked wheel (32) includes an inner ring (21), an outer ring (22), and N spokes (23). The inner ring (21) and the outer ring (22) are coaxially arranged with the cutting wheel shaft (31), and are respectively fixedly connected to the middle part of the N spokes (23) and the end away from the cutting wheel shaft (31). The multiple spokes (23) are evenly distributed, and the spokes (23) of the two spoked wheels (32) are arranged one-to-one. The N crossbars (34) are located on a circle concentric with the cutting wheel shaft (31). The reinforcing rods (24) are arranged in the left-right direction and are located between the corresponding two spokes (23). Located in the middle of the spoke (23), it is fixedly connected to the spoke (23); the spoke (23) is arranged radially along the spoke wheel (32), one end of which is fixed on the cutting and coiling wheel shaft (31), the middle part of which is fixedly connected to the inner ring (21), and the other end of which is fixedly connected to the outer ring (22). It is a hollow structure, with a lead screw arranged inside along its direction, a sliding hole arranged on its inner side along its direction, and a sliding seat arranged on its inner side; the outer end of the sliding seat passes through the sliding hole and is threadedly connected to the lead screw; the crossbar (34) is arranged in the left and right direction, located between the corresponding two spokes (23), and its left and right ends are respectively fixed on the sliding seats of the corresponding two spokes (23); The cutting and rolling wheel shaft (31) includes an outer sleeve, an inner drive shaft coaxially disposed within the outer sleeve, a servo motor (35) at the left or right end of the outer sleeve, and two bevel gears arranged side by side on the inner rotating shaft. The spoke wheel (32) is fixed on the outer sleeve. The left and right ends of the outer sleeve are rotatably disposed on the fabric rolling frame (2), and its left or right end is connected to the fabric rolling motor (33) for transmission. The other end is fixedly disposed with a servo motor (35). The inner drive shaft is rotatably disposed on the outer sleeve. Inside, its end is connected to the servo motor (35) for transmission; two bevel gears are located at two spoke wheels (32) respectively, and they are both coaxially set with the inner drive shaft; the left or right side of the cloth rolling frame (2) is provided with a brush slip ring (36), the brush slip ring (36) is sleeved on the outside of the brush of the servo motor (35) and it is used to control the servo motor (35) and supply power to the servo motor (35); the inner end of the lead screw passes through the outer sleeve and the gear at its inner end meshes with the corresponding bevel gear.

4. The easy-to-operate windmill-type fabric laying system according to claim 3, characterized in that, The outer sleeve includes a coarse cylindrical section in the middle and two thin cylindrical sections at both ends. The outer diameter of the coarse cylindrical section is larger than the outer diameter of the thin cylindrical section. The thin cylindrical sections are rotatably mounted on the fabric rolling frame (2). The inner diameter of the coarse cylindrical section is larger than the diameter of the bevel gear. The two bevel gears are located at both ends of the coarse cylindrical section. Two spoke wheels (32) are fixed at both ends of the coarse cylindrical section. Two discs (25) are coaxially fixed on the coarse cylindrical section. The two discs (25) are arranged side by side and are located at the two spoke wheels (32). The discs (25) are located inside the corresponding spoke wheels (32). The positioning plate is located outside one of the discs (25).

5. The easy-to-operate windmill-type fabric laying system according to claim 1, characterized in that, The arc-shaped plate (4) is arranged in the front-to-back direction, with a gap between its rear end and the cutting table (5) and it is located in front of and below the cutting table (5). Its front part is curved upward to the front of the cutting roll (3), and its upper surface is smooth. A traction roller (8) is provided directly above its front end, and its rear part is bent upward to form a guide slope (9). The traction roller (8) is arranged in the left-to-right direction. The fabric (1) goes upward to the front side of the traction roller (8), passes over the upper side of the traction roller (8), and slopes downward to the lower side of the cutting roll (3). The guide slope (9) is arranged obliquely upward from front to back, with a smooth upper surface. It is located in the rear of the cutting roll (3), and the distance between its rear end and the cutting table (5) is 0.5-1.0m.

6. The easy-to-operate windmill-type fabric laying system according to claim 5, characterized in that, The transfer and conveying device includes a docking plate (6) and two drive structures (11); the docking plate (6) is vertically arranged, with its upper end located above the cutting table (5), and its upper part is rotatably located at the front end of the cutting table (5) via a left-right rotating shaft, and its lower rear side is provided with a drive rotating shaft along the left-right direction; the two drive structures (11) are arranged side by side, both located below the cutting table (5), and are used to drive the docking plate (6) to rotate upward; The drive structure (11) includes a slide rail (51), a slide block (52) slidably disposed on the slide rail (51), a cylinder (53) directly behind the slide rail (51), and a connecting rod (54) hinged between the slide block (52) and the drive shaft; the slide rail (51) is disposed on the ground in the front-back direction, the cylinder (53) is disposed on the ground in the front-back direction and the front end of its telescopic rod is connected to the rear of the slide block (52); the two cylinders (53) are driven synchronously; the connecting rod (54) is disposed in the front-back direction, its front end is rotatably connected to the drive shaft, and its rear end is hinged to the front of the slide block (52) through a left-right rotating shaft; during the pulling process, the cylinder (53) extends; the docking plate (6) rotates upward, its front end is connected to the rear end of the guide slope (9), and it is coplanar with the guide slope (9).

7. The easy-to-operate windmill-type fabric laying system according to claim 1, characterized in that, A pressure bar (10) is provided directly above the front of the cutting table (5); the pressure bar (10) is arranged in the left and right direction, and is located directly above the stacked fabric (1), and can move up and down; when the pressure bar (10) moves downward, it presses against the upper side of the stacked fabric (1). The rear side of the fabric rolling frame (2) is provided with a circular saw bracket for placing an electric circular saw. The circular saw bracket is located below the control button (7), and both the circular saw bracket and the control button (7) are located on the rear left or right side of the fabric rolling frame (2).

8. A fabric laying method using the easy-to-operate windmill-type fabric laying system as described in any one of claims 1-7, characterized in that, The method includes: S1 Start fixing: The operator drags the fabric (1) along the arc plate (4) and passes directly under the cutting roll (3) to fix the rear end of the fabric (1) on the fixing rod (37). At this time, the operator is located between the arc plate (4) and the cutting table (5), and the fixing rod (37) is located behind the cutting roll (3). S2 winding: The cutting wheel (3) rotates forward, the winding motor (33) and the magnetic powder brake (13) work, and stop after a predetermined number of turns. When it stops, the fixing rod (37) is located behind the cutting wheel (3); S3 Cutting: An operator cuts the rear of the fabric roll on the cutting wheel (3) at a position adjacent to and below the fixing bar (37); S4 Assisted Pulling: Two operators pull one end of the fabric roll above the cut point, and the other end of the fabric roll falls down onto the arc plate (4). Press the control button (7), the fabric rolling motor (33) works, and the magnetic powder brake (13) does not work. At the same time, the two operators pull the fabric (1) backward. When the second positioning position of the trigger positioning structure (12) is reached, the fabric rolling motor (33) stops. When pulling the fabric (1), the two operators are located on the left and right sides of the cutting table (5) respectively. S5 Manual pulling: Continue pulling backward, the cutting roller (3) rotates as the fabric (1) moves, until the fabric (1) is pulled onto the cutting table (5), the transfer conveyor rotates upward and its front end connects with the rear end of the arc plate (4); continue pulling backward until the fabric (1) is completely placed on the cutting table (5) and reaches the predetermined position and then stops.

9. The fabric laying method according to claim 8, characterized in that, In step S3, the electric circular saw is used to cut the coil by moving left and right; in step S4, the cutting wheel (3) rotates 10-35° and then stops.

10. The fabric laying method according to claim 8, characterized in that, In step S2, during the initial winding, the fabric winding motor (33) operates while the magnetic powder brake (13) does not operate; when the set requirement is reached, the magnetic powder brake (13) operates to control the winding tension; when the winding is about to be completed, the magnetic powder brake (13) decelerates the fabric winding motor (33); when the winding is completed, the magnetic powder brake (13) brakes the fabric winding motor (33).

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