Automatic roll-up and slitting method of a base fabric

Abstract

The application discloses an automatic winding and slitting method of a base cloth and belongs to the technical field of non-woven fabrics. The method comprises the following steps: cross cutting: after the cloth roll rolls out from the first supporting roller, the cloth roll slides backward along the smooth platform, and the side pressing roller blocks the backward rolling of the cloth roll and makes the cloth roll roll between the two second supporting rollers; the cloth roll pressing structure moves downward to the low position, the top pressing roller moves downward to the low position to press the base cloth on the upside of the first supporting roller, the side pressing roller is pressed on the upper back side of the cloth roll, the second supporting roller rotates to tighten the base cloth, and the left and right movement of the cross cutting knife realizes cross cutting; after the cross cutting is completed, the second supporting roller continues to rotate to tightly wind the cloth roll; adding a winding shaft: after the cross cutting is completed, the top pressing roller and the cloth roll pressing structure are both upwardly returned; the turnover frame rotates backward, the standby winding shaft rolls to the guide mechanism, rolls backward along the guide mechanism; the cloth kicking rod is pushed backward by the standby winding shaft to rotate to the upside of the standby winding shaft to enable the standby winding shaft to pass; and the standby winding shaft falls between the two first supporting rollers.

Description

Technical Field

[0001] This invention belongs to the field of nonwoven fabric technology, and specifically relates to an automatic winding and slitting method for a base fabric. Background Technology

[0002] Base fabric is a type of fabric that does not require spinning or weaving. It is made by arranging short or long textile fibers in a directional or random manner to form a web structure, which is then reinforced by mechanical, thermal bonding, or chemical methods. The final step in base fabric production involves a winding machine that winds the fabric roll onto a winding shaft to a certain size, while simultaneously slitting the base fabric (usually longitudinal slitting and edge trimming).

[0003] For example, patent application number CN202120237248.5 discloses a winding device for base fabric production, including a fabric storage structure and a winding structure arranged sequentially from front to back; the winding structure includes a gantry frame arranged in the left and right direction, two winding rubber rollers arranged side by side in front and behind the gantry frame, a winding shaft directly above the two winding rubber rollers, and a pressure roller directly above the winding shaft; the winding structure also includes multiple winding cylinders arranged side by side on the winding shaft, two slitting guide rollers arranged side by side behind the winding rubber rollers, a feeding guide roller above the slitting guide rollers, and a slitting mechanism between the two slitting guide rollers; The gantry frame has vertical slide rails and racks on both sides. The racks are located inside the slide rails on the corresponding sides. The pressure roller has upper slide seats rotatably mounted on the slide rails on the corresponding sides. The pressure roller has gears coaxially mounted on both sides. The gears mesh with the racks on the corresponding sides. A rear lifting cylinder is provided between the upper slide seats and the corresponding side of the gantry frame to move the upper slide seats up and down. A support block is provided on the gantry frame and directly below the end of the winding shaft. The upper side of the support block has an upward-opening lower semicircular groove that mates with the winding shaft. A limiting block is provided on the slide rail and above the end of the winding shaft. The lower side of the limiting block has a downward-opening upper semicircular groove that mates with the winding shaft. The limiting block is slidably mounted on the slide rail on the corresponding side via a sliding base. A front lifting cylinder is provided between the sliding base and the corresponding side of the gantry frame to move the sliding base up and down. The lower semicircular groove and the upper semicircular groove are arranged opposite each other. When the winding shaft is initially wound, its end is placed in the lower semicircular groove on the corresponding side; thus forming... After the fabric is rolled up, the winding shaft moves upward and its upper part is embedded in the upper semi-circular groove; the slitting mechanism includes a slitting support roller in front of the base fabric and multiple cutters arranged side by side behind the base fabric. The cutters can move back and forth and are circular blades arranged in the left and right direction. The cutters are located directly behind the slitting support roller and can press the base fabric against the rear side of the slitting support roller; the winding rubber roller, winding shaft, pressure roller, slitting guide roller, feeding guide roller and slitting support roller are all arranged in the left and right direction. The rear sides of the slitting support roller and the two slitting guide rollers are located on the same vertical plane. The winding cylinder is detachably sleeved on the winding shaft; The base fabric is wound around the upper side of the feed guide roller, around the front side of the feed guide roller, around the rear side of the upper slitting guide roller, between the cutter and the slitting support roller, and around the rear side of the lower slitting guide roller in sequence, and then outward from the lower side of the lower slitting guide roller to the upper side of the pressure roller, around the front side of the pressure roller to the rear side of the fabric roll; the base fabric is wound on the winding drum to form a fabric roll, the fabric roll is placed between the upper sides of two winding rubber rollers, and the pressure roller presses against the upper side of the fabric roll.

[0004] For example, patent CN109775408B discloses a fully automatic winding machine, including a guide roller, a cutting device, a distribution winding device, a spreading device, a support roller device, and a kicking winding device. It also includes an air shaft circulation mechanism, which comprises an air shaft transmission mechanism and a truss assembly. The air shaft transmission mechanism is used to transmit the air shaft to the support roller device. The air shaft transmission mechanism includes an air shaft receiving device, a shaft picking device, a chute device, and an air shaft flipping device. The truss assembly includes a truss, a gripper fixed to the truss, and a drive unit for moving the gripper. The truss assembly is used to grip the air shaft and place it between the two clamping arms of the air shaft receiving device. The air shaft receiving device includes two clamping arms spaced at a certain distance for receiving and temporarily storing the air shaft. The shaft picking device includes a transmission belt and a holder connected to the transmission belt. The shaft picking device is used to remove the air shaft from the air shaft receiving device and transfer it to the chute device. The chute device includes a first chute disposed between the shaft taking device and the air shaft turning device, which transports the air shaft from the shaft taking device to the air shaft turning device. The chute device also includes a second chute disposed between the air shaft turning device and the fabric roller device, which transports the air shaft from the air shaft turning device to the fabric roller device. The air shaft turning device receives and temporarily stores spare air shafts from the first chute, and includes a turning groove and a second power unit. The second power unit is disposed on the bottom side of the turning groove and drives the turning groove to tilt. The tilting of the turning groove flips the air shafts remaining on the turning groove into the second chute. The air shaft device receives the spare air shafts, which are then taken away by the shaft taking device and transported to the air shaft turning device via the first chute device. The air shaft turning device then transports the spare air shafts to the fabric roller device via the second chute device according to the process cycle to begin fabric winding.

[0005] Both of the above patents achieve longitudinal cutting of the base fabric, but not transverse cutting. Transverse cutting requires manual operation using tools or other equipment. In addition, patent CN109775408B has a winding shaft circulation mechanism to automatically add winding shafts, but its structure is very complex; it also requires other structures to cooperate with, such as a fabric kicking device (the winding shaft circulation mechanism will occupy the space of the fabric kicking device, which needs to be designed as a telescopic structure). Summary of the Invention

[0006] To address the aforementioned problems, this invention provides an automatic winding and slitting method for base fabric, which enables cross-cutting, longitudinal cutting, winding, and automatic addition of winding shafts to the base fabric. The technical solution is as follows: This invention provides an automatic winding and slitting method for a base fabric, the method comprising: Winding: During the initial winding, the current winding shaft 4 is located on the two first support rollers 1, and the pressing roll structure 2 presses the two ends of the current winding shaft 4; the top pressure roller 3 moves downward and presses against the upper side of the current winding shaft 4, the top pressure roller 3 rotates, and the base fabric 8 is wound on the current winding shaft 4 to form a fabric roll 12. The pressing roll structure 2 gradually moves upward as the fabric roll 12 increases in size; after winding is completed, the kicking rod 11 rotates backward and pushes the fabric roll 12 backward from the first support roller 1. Insert the spare winding shaft 5 from the feed hole 9 in the left and right directions, and place the spare winding shaft 5 on the support wheel 7; Cross-cutting: After the fabric roll 12 rolls backward from the first support roller 1, the fabric roll 12 slides backward along the smooth platform 13. The side pressure roller 15 blocks the fabric roll 12 from rolling backward and it is between the two second support rollers 16. The fabric roll pressing structure 2 moves downward to the low position, and the top pressure roller 3 moves downward to the low position to press the base fabric 8 against the upper side of the first support roller 1. The side pressure roller 15 presses against the upper rear side of the fabric roll 12. The second support roller 16 rotates to tighten the base fabric 8. The cross-cutting blade 14 moves left and right to achieve cross-cutting. After the cross-cutting is completed, the second support roller 16 continues to rotate to tighten the fabric roll 12. Adding a winding shaft: After the cross-cutting is completed, the top pressure roller 3 and the fabric roll structure 2 both return to their upward positions; the flipping frame 6 rotates backward, and the spare winding shaft 5 rolls down to the guide mechanism 10 and rolls backward along the guide mechanism 10; the kicking rod 11 is pushed backward by the spare winding shaft 5 and rotates to the upper side of the spare winding shaft 5 to allow the spare winding shaft 5 to pass; the spare winding shaft 5 falls between the two first support rollers 1 and is used as the current winding shaft 4.

[0007] In this embodiment, the first support roller 1 and the side pressure roller 15 are both passive rollers, while the top pressure roller 3 and the second support roller 16 are both active rollers. The diameter of the top pressure roller 3 is larger than the diameter of the first support roller 1. The two first support rollers 1 are arranged side by side, and the two second support rollers 16 are arranged side by side, one after the other.

[0008] In this embodiment, the tilting frame 6 is arranged in the left-right direction, with multiple support wheels 7 arranged side by side on its upper left and right sides. These support wheels 7 are driven by corresponding cylinders to tilt backward. The left and right ends of the support wheels 7 are rotatably mounted on the frame via left-right rotating shafts. The support wheels 7 are arranged in the front-back direction, and their circumferential surfaces are coaxially provided with arc-shaped grooves that cooperate with the spare winding shaft 5. The left side of the frame, located at the tilting frame 6, is provided with a feed hole 9 for the spare winding shaft 5 to pass through. The right side of the frame, directly opposite the spare winding shaft 5, is provided with a positioning mechanism. The positioning mechanism can move left and right and is driven by corresponding cylinders. When the tilting frame 6 tilts, the positioning mechanism moves outward.

[0009] Before winding, the base fabric is longitudinally cut and edge-trimmed by the longitudinal cutting structure 17 in front of the first support roller 1.

[0010] In this embodiment, there are two transverse cutting blades 14, one located at the front of the smooth platform 13 and the other located at the rear of the smooth platform 13. During transverse cutting, when the base fabric 8 is attached to the front of the smooth platform 13, the front transverse cutting blade 14 moves left and right; when the base fabric 8 is attached to the rear of the smooth platform 13, the rear transverse cutting blade 14 moves left and right.

[0011] In this embodiment, there are two kicking rods 11; the two kicking rods 11 are driven synchronously and are located directly in front of the left and right ends of the current winding shaft 4 respectively; the kicking rod 11 is located between the flipping frame 6 and the first support roller 1, and its lower part can only rotate backward and not forward, while its upper part is rotatably set and is driven to rotate backward by a corresponding cylinder.

[0012] In this embodiment, the smooth platform 13 is located adjacent to the rear of the first support roller 1, and is arranged obliquely downward from front to back, with its front end lower than the upper side of the first support roller 1; the second support roller 16 is located adjacent to the rear of the smooth platform 13, and is lower than the rear end of the smooth platform 13; the cross-cutting blade 14 is arranged in the front-back direction and is disposed on the smooth platform 13.

[0013] In this embodiment, the side pressure roller 15 is located adjacent to the rear of the fabric roll 12 on the second support roller 16. It can move forward and press against the upper rear side of the fabric roll 12. It is located between the upper ends of the two flipping arms 18. The flipping arms 18 are arranged vertically, with their middle parts rotatably arranged. They are driven to rotate forward by corresponding cylinders. The beneficial effects of the technical solution provided by the embodiments of the present invention are as follows: The embodiments of the present invention provide an automatic winding and slitting method for base fabric, which can realize the cross-cutting, longitudinal cutting, winding and automatic addition of winding shaft of base fabric. The structure is simple and easy to use. Attached Figure Description

[0014] Figure 1 This is a diagram showing the usage status during winding; Figure 2 This is a diagram showing the usage status of the fabric roll when it reaches the second support roller; Figure 3 This is a diagram showing the usage status during cross-sectioning; Figure 4 This is a diagram showing the usage status of the tilting frame when it is tilted. Figure 5 This is a diagram showing the usage status of the spare winding shaft when it passes the kick rod; Figure 6 This is a diagram showing the usage status when the spare winding shaft reaches the support roller.

[0015] In the figure: 1 First support roller, 2 Pressing roll structure, 3 Top pressure roller, 4 Current winding shaft, 5 Spare winding shaft, 6 Tilting frame, 7 Support wheel, 8 Base fabric, 9 Feed hole, 10 Guide mechanism, 11 Kicking rod, 12 Fabric roll, 13 Smooth platform, 14 Cross cutter, 15 Side pressure roller, 16 Second support roller, 17 Longitudinal cutting structure, 18 Tilting arm. Detailed Implementation

[0016] 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.

[0017] See Figure 1-6 This invention provides an automatic winding and slitting method for a base fabric, the method comprising: Winding: During the initial winding, the current winding shaft 4 is located on the two first support rollers 1, and the pressing roll structure 2 presses the two ends of the current winding shaft 4; the top pressure roller 3 moves downward and presses against the upper side of the current winding shaft 4, the top pressure roller 3 rotates, and the base fabric 8 is wound on the current winding shaft 4 to form a fabric roll 12. The pressing roll structure 2 gradually moves upward as the fabric roll 12 increases in size; after winding is completed, the kicking rod 11 rotates backward and pushes the fabric roll 12 backward from the first support roller 1.

[0018] Insert the spare winding shaft 5 from the feed hole 9 in the left and right directions, and place the spare winding shaft 5 on the support wheel 7.

[0019] Cross-cutting: After the fabric roll 12 rolls backward from the first support roller 1, it slides backward along the smooth platform 13. The side pressure roller 15 prevents the fabric roll 12 from rolling backward and it is positioned between the two second support rollers 16. The fabric roll pressing structure 2 moves downward to its lowest position, and the top pressure roller 3 moves downward to its lowest position, pressing the base fabric 8 against the upper side of the first support roller 1. The side pressure roller 15 presses against the upper rear side of the fabric roll 12. The second support roller 16 rotates to tighten the base fabric 8, and the cross-cutting blade 14 moves left and right to achieve cross-cutting. After cross-cutting, the second support roller 16 continues to rotate to tighten the fabric roll 12.

[0020] Adding a winding shaft: After the cross-cutting is completed, both the top pressure roller 3 and the fabric roll structure 2 return to their upward positions. The flipping frame 6 rotates backward, and the spare winding shaft 5 rolls down to the guide mechanism 10, then rolls backward along the guide mechanism 10. The kick bar 11 is pushed backward by the spare winding shaft 5 and rotates to the upper side of the spare winding shaft 5 to allow the spare winding shaft 5 to pass. The spare winding shaft 5 falls between the two first support rollers 1 and is used as the current winding shaft 4.

[0021] In this embodiment, the first support roller 1 and the side pressure roller 15 are both passive rollers, while the top pressure roller 3 and the second support roller 16 are both active rollers. The diameter of the top pressure roller 3 is larger than the diameter of the first support roller 1. The two first support rollers 1 are arranged side by side, and the two second support rollers 16 are arranged side by side, one after the other. The top pressure roller 3 is mounted on a crossbeam that can move up and down.

[0022] In this embodiment, the flipping frame 6 is arranged in a left-right direction, with multiple support wheels 7 arranged side by side on its upper left and right sides. These wheels are driven by corresponding cylinders to flip backward. The left and right ends of the frame are rotatably mounted on the machine frame via left-right rotating shafts. Specifically, it is a vertically arranged rectangular frame structure, and its flipping mechanism ensures that the spare winding shaft 5 can fall off. The support wheels 7 are arranged in a front-rear direction, and their circumferences are coaxially provided with arc-shaped grooves that mate with the spare winding shaft 5. A feed hole 9 for the spare winding shaft 5 to pass through is located on the left side of the machine frame, near the flipping frame 6, and a positioning mechanism is located on the right side, directly opposite the spare winding shaft 5. The feed hole 9 is specifically a vertically arranged rectangular hole. The positioning mechanism aligns the spare winding shaft 5 with the current winding shaft 4. The positioning mechanism can move left and right, and is driven by corresponding cylinders. When the flipping frame 6 flips, the positioning mechanism moves outward.

[0023] Before winding, the base fabric is longitudinally cut and edge-trimmed by the longitudinal cutting structure 17 in front of the first support roller 1.

[0024] In this embodiment, there are two transverse cutting blades 14: one located at the front of the smooth platform 13 and the other at the rear. During transverse cutting, when the base fabric 8 is in contact with the front of the smooth platform 13, the front transverse cutting blade 14 moves left and right; when the base fabric 8 is in contact with the rear of the smooth platform 13, the rear transverse cutting blade 14 moves left and right. The top pressure roller 3 in this patent is designed to be relatively large, firstly to press the base fabric 8 tightly for transverse cutting, and secondly to allow the fabric roll structure 2 to be positioned below the lifting beam when pressing the base fabric 8. Specifically, both sides of the frame are vertically equipped with slide rails, and the lifting beam and fabric roll structure 2 are slidably mounted on the slide rails, with the lifting beam positioned above the fabric roll structure 2.

[0025] In this embodiment, there are two kicking rods 11; the two kicking rods 11 are driven synchronously and are located directly in front of the left and right ends of the current winding shaft 4, respectively. The kicking rods 11 are vertically arranged between the flipping frame 6 and the first support roller 1. Their lower parts can only rotate backward and not forward, while their upper parts are rotatably mounted on the frame via left and right rotating shafts and are driven to rotate backward by corresponding cylinders.

[0026] In this embodiment, the smooth platform 13 is located adjacent to and behind the first support roller 1, and is arranged obliquely downwards from front to back. Its front end is lower than the upper side of the first support roller 1, and its surface is smooth. The second support roller 16 is located adjacent to and behind the smooth platform 13, and is lower than the rear end of the smooth platform 13. It is synchronously driven by a corresponding structure. The cross-cutting blade 14 is arranged in the front-to-back direction, is disposed on the smooth platform 13, and can move in the left-to-right direction.

[0027] In this embodiment, the side pressure roller 15 is located adjacent to the rear of the fabric roll 12 on the second support roller 16. It can move forward and press against the upper rear side of the fabric roll 12. It is located between the upper ends of the two flipping arms 18. The flipping arms 18 are arranged vertically, with their middle parts rotatably arranged. They are driven to rotate forward by corresponding cylinders.

[0028] The guiding mechanism includes two slides arranged side by side on both sides of the frame, with the slides extending diagonally downwards from the tilting frame 6 to above the two first support rollers 1.

[0029] In this patent, the terms "first" and "second" serve only as distinctions and have no other special meaning.

[0030] 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 automatic winding and slitting method for base fabric, characterized in that, The method includes: Winding: During the initial winding, the current winding shaft (4) is located on the two first support rollers (1), and the pressing roll structure (2) presses the two ends of the current winding shaft (4); the top pressure roller (3) moves downward and presses against the upper side of the current winding shaft (4), and the top pressure roller (3) rotates to allow the base fabric (8) to be wound on the current winding shaft (4) to form a fabric roll (12). The pressing roll structure (2) gradually moves upward as the fabric roll (12) increases in size; after winding is completed, the kicking rod (11) rotates backward to push the fabric roll (12) backward from the first support roller (1); Insert the spare winding shaft (5) from the feed hole (9) in the left and right direction, and place the spare winding shaft (5) on the support wheel (7); Cross-cutting: After the fabric roll (12) rolls backward from the first support roller (1), the fabric roll (12) slides backward along the smooth platform (13). The side pressure roller (15) blocks the fabric roll (12) from rolling backward and into the space between the two second support rollers (16). The fabric roll pressing structure (2) moves downward to the low position, and the top pressure roller (3) moves downward to the low position to press the base fabric (8) against the upper side of the first support roller (1). The side pressure roller (15) presses against the upper rear side of the fabric roll (12). The second support roller (16) rotates to tighten the base fabric (8). The cross-cutting blade (14) moves left and right to achieve cross-cutting. After the cross-cutting is completed, the second support roller (16) continues to rotate to tighten the fabric roll (12). Adding a winding shaft: After the cross-cutting is completed, the top pressure roller (3) and the pressure roll structure (2) return to their upward positions; the flipping frame (6) rotates backward, and the spare winding shaft (5) rolls down to the guide mechanism (10) and rolls down backward along the guide mechanism (10); the kicking rod (11) is pushed by the spare winding shaft (5) and rotates backward to the upper side of the spare winding shaft (5) so that the spare winding shaft (5) can pass through; the spare winding shaft (5) falls between the two first support rollers (1) and is used as the current winding shaft (4).

2. The automatic winding and slitting method for the base fabric according to claim 1, characterized in that, The first support roller (1) and the side pressure roller (15) are both passive rollers, and the top pressure roller (3) and the second support roller (16) are both active rollers. The diameter of the top pressure roller (3) is larger than the diameter of the first support roller (1). The two first support rollers (1) are arranged side by side, and the two second support rollers (16) are arranged side by side.

3. The automatic winding and slitting method for the base fabric according to claim 1, characterized in that, The tilting frame (6) is arranged in the left-right direction, and multiple support wheels (7) are arranged side by side on it. They are driven to tilt backward by corresponding cylinders. The left and right ends are rotatably mounted on the frame through left-right rotating shafts. The support wheels (7) are arranged in the front-back direction, and arc-shaped grooves that cooperate with spare winding shafts (5) are coaxially provided on their circumference. The left side of the frame and located at the tilting frame (6) is provided with a feed hole (9) for the spare winding shaft (5) to pass through. The right side and directly opposite the spare winding shaft (5) is provided with a positioning mechanism. The positioning mechanism can move left and right and is driven by corresponding cylinders. When the tilting frame (6) tilts, the positioning mechanism moves outward.

4. The automatic winding and slitting method for the base fabric according to claim 1, characterized in that, Before winding, the base fabric is longitudinally cut and edge-trimmed by the longitudinal cutting structure (17) in front of the first support roller (1).

5. The automatic winding and slitting method for the base fabric according to claim 1, characterized in that, There are two cross-cutting blades (14), one cross-cutting blade (14) is located at the front of the smooth platform (13), and the other cross-cutting blade (14) is located at the rear of the smooth platform (13). When cutting, when the base fabric (8) is attached to the front of the smooth platform (13), the front cross-cutting blade (14) moves left and right. When the base fabric (8) is attached to the rear of the smooth platform (13), the rear cross-cutting blade (14) moves left and right.

6. The automatic winding and slitting method for the base fabric according to claim 1, characterized in that, There are two kicking rods (11); the two kicking rods (11) are driven synchronously and are located directly in front of the left and right ends of the current winding shaft (4); the kicking rod (11) is located between the flipping frame (6) and the first support roller (1), its lower part can only rotate backward and not forward, and its upper end is rotatably set and is driven to rotate backward by the corresponding cylinder.

7. The automatic winding and slitting method for the base fabric according to claim 1, characterized in that, The smooth platform (13) is located adjacent to the rear of the first support roller (1), and is arranged obliquely downward from front to back, with its front end lower than the upper side of the first support roller (1); the second support roller (16) is located adjacent to the rear of the smooth platform (13), and is lower than the rear end of the smooth platform (13); the cross-cutting blade (14) is arranged in the front-back direction and is located on the smooth platform (13).

8. The automatic winding and slitting method for the base fabric according to claim 1, characterized in that, The side pressure roller (15) is located adjacent to the rear of the cloth roll (12) on the second support roller (16). It can move forward and press against the upper rear side of the cloth roll (12). It is located between the upper ends of the two flipping arms (18). The flipping arms (18) are arranged vertically, with their middle parts rotatably arranged. They are driven to rotate forward by the corresponding cylinders.

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