Online transverse cutting device for non-woven fabric

Abstract

The utility model discloses an on-line transverse cutting device for non-woven fabric, and belongs to the technical field of non-woven fabric. Comprising a first rack, a first winding structure, a transverse slitting structure and a second winding structure, and the first winding structure comprises two first supporting rollers, a top pressing roller and a cloth roll pressing structure; the two first supporting rollers are driven rollers, and the jacking roller is a driving roller; the transverse slitting structure comprises a smooth platform and a transverse cutter. The second winding structure comprises a second rack, a side pressing roller and two second supporting rollers. The smooth platform is arranged obliquely downwards from front to back and located behind the first supporting roller. The second supporting roller is a driving roller and is positioned behind the smooth platform; the side pressing roller is located on the adjacent rear portion of the yardage roll on the second supporting roller and abuts against the upper rear side of the yardage roll. During transverse cutting, the cloth is rolled to the second supporting roller; the top pressing roller is located at the low position to press the non-woven fabric on the upper side of the first supporting roller, the side pressing roller presses the rear upper side of the cloth roll, and the second supporting roller rotates to tension the non-woven fabric.

Description

Technical Field

[0001] The utility model belongs to the technical field of nonwoven fabrics, and particularly relates to an online cross-cutting device for nonwoven fabrics. Background Art

[0002] Nonwoven fabric is a kind of fabric that does not require spinning and weaving. It is made by directional or random arrangement of textile short fibers or filaments to form a fiber web structure, which is then reinforced by mechanical, thermal bonding or chemical methods.

[0003] The last step in the production of nonwoven fabrics is to use a winder to wind the fabric roll onto a winding shaft and to a certain size, while also slitting the nonwoven fabric (usually slitting and trimming).

[0004] For example, the patent with application number CN202120237248.5 discloses a winding device for nonwoven fabric production, including a cloth storage structure and a winding structure arranged in sequence from front to back; the winding structure includes a gantry frame arranged in the left and right directions, two winding rubber rollers arranged side by side in front and back of the gantry frame, a winding shaft directly above the two winding rubber rollers, and a pressure roller directly above the winding shaft, and the winding structure also includes a plurality of winding drums arranged side by side on the winding shaft, two slitting guide rollers arranged side by side up and down behind the winding rubber roller, a feed guide roller above the slitting guide roller, and a slitting mechanism between the two slitting guide rollers; The left and right sides of the gantry frame are provided with slide rails and racks in the vertical direction, the racks are located on the inner side of the slide rails on the corresponding side, the left and right ends of the pressure roller are rotatably provided with upper slide seats, the upper slide seats are slidably provided on the slide rails on the corresponding side, the left and right ends of the pressure roller are coaxially provided with gears, the gears are meshed with the racks on the corresponding side, and a rear lifting cylinder is provided between the upper slide seat and the corresponding side of the gantry frame to make the upper slide seat move up and down; A support block is provided on the gantry frame and directly below the end of the winding shaft, and a lower semicircular groove is provided on the upper side of the support block and opens upward and cooperates with the winding shaft; a limit block is provided on the slide rail and above the end of the winding shaft, and an upper semicircular groove is provided on the lower side of the limit block and opens downward and cooperates with the winding shaft, and the limit block is slidably arranged on the slide rail on the corresponding side through the lower slide seat, and a front lifting cylinder is provided between the lower slide seat and the corresponding side of the gantry frame to enable the lower slide seat to move up and down; the lower semicircular groove is arranged opposite to the upper semicircular groove; when the winding shaft is initially wound, its end is placed in the lower semicircular groove on the corresponding side; after the cloth roll is formed , the winding shaft moves upward and its upper part is embedded in the upper semicircular groove; the slitting mechanism includes a slitting support roller in front of the non-woven fabric and a plurality of cutters arranged side by side left and right behind the non-woven fabric, the cutters can move forward and backward and are circular blades arranged left and right, the cutters are located directly behind the slitting support roller and can press the non-woven fabric against the rear side of the slitting support roller; the winding rubber roller, winding shaft, pressure roller, slitting guide roller, feed guide roller and slitting support roller are all arranged in the left and right directions, the rear sides of the slitting support roller and the two slitting guide rollers are located on the same vertical plane, and the winding drum is detachably sleeved on the winding shaft; The nonwoven fabric is wound in from the upper side of the feed guide roller, bypasses the front side of the feed guide roller, and successively bypasses the rear side of the upper slitting guide roller, between the cutter and the slitting support roller, and the rear side of the lower slitting guide roller, and then winds forward from the lower side of the lower slitting guide roller to the upper side of the pressure roller, bypasses the front side of the pressure roller to the rear side of the fabric roll; the nonwoven fabric is wound on the winding drum to form a fabric roll, and the fabric roll is placed between the upper sides of two winding rubber rollers, and the pressure roller presses on the upper side of the fabric roll.

[0005] For example, the patent with announcement number CN109775408B discloses a fully automatic winding machine, including a cloth guide roller, a cloth cutting device, a distribution roll device, a radial expansion device, a cloth support roller device and a cloth kicking roll device, and also includes an air shaft circulation mechanism, the air shaft circulation mechanism includes an air shaft transmission mechanism and a truss assembly, the air shaft transmission mechanism is used to transmit the air shaft to the cloth support roller device, the air shaft transmission mechanism includes an air shaft receiving device, an axis taking device, a slide chute device and an air shaft turning device; the truss assembly includes a truss, a gripper fixed on the truss and a driving unit that drives the gripper to move, the truss assembly is used to grab 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 with a certain spacing, which are used to receive and temporarily store the air shaft; the axis taking device includes a transmission belt and a holder connected to the transmission belt; the axis taking device is used to remove the air shaft from the air shaft receiving device and transmit it to the slide chute device, The chute device includes a first chute arranged between the shaft taking device and the inflatable shaft flipping device, the first chute is used to transport the inflatable shaft from the shaft taking device to the inflatable shaft flipping device, the chute device also includes a second chute, the second chute is arranged between the inflatable shaft flipping device and the cloth support roller device, the second chute is used to transport the inflatable shaft from the inflatable shaft flipping device to the cloth support roller device; the inflatable shaft flipping device is used to receive and temporarily store the spare inflatable shaft from the first chute, includes a flipping groove and a second power unit, the second power unit is arranged at the bottom side of the flipping groove and drives the flipping groove to tilt, the flipping groove is tilted so that the inflatable shaft staying on the flipping groove is flipped to the second chute; the inflatable shaft device receives the spare inflatable shaft, and then the shaft taking device takes the inflatable shaft away, and then transports it to the inflatable shaft flipping device through the first chute device, and the inflatable shaft flipping device transports the spare inflatable shaft to the cloth support roller device through the second chute device according to the process rhythm to start cloth winding.

[0006] Both of the above two patents realize longitudinal cutting of nonwoven fabrics, but fail to realize cross-cutting of nonwoven fabrics. Cross-cutting needs to be realized manually using tools or other equipment. Utility Model Content

[0007] In order to solve the above problems, the embodiment of the utility model provides an online cross-cutting device for nonwoven fabrics, which can realize cross-cutting, longitudinal cutting and winding of nonwoven fabrics. The technical solution is as follows:

[0008] The utility model embodiment provides an online cross-cutting device for nonwoven fabrics, which includes a first frame and a first winding structure thereon, wherein the first winding structure includes two first support rollers 1 arranged side by side in front and back and a top pressure roller 2 and a cloth pressing roll structure above them, wherein the top pressure roller 2 and the cloth pressing roll structure can both move up and down; the two first support rollers 1 are passive rollers, and the top pressure roller 2 is an active roller; the online cross-cutting device also includes a transverse slitting structure at the rear side of the first frame and a second winding structure adjacent to the rear of the transverse slitting structure; the transverse slitting structure includes a smooth platform 3 arranged along the front-to-back direction and a cross-cutting knife 4 thereon that can move left and right, the second winding structure includes a second frame and a side pressure roller 5 thereon and two second support rollers The support roller 6 and the two second support rollers 6 are arranged side by side front and back and driven synchronously; the smooth platform 3 is arranged obliquely downward from front to back, and is located adjacent to the rear of the first support roller 1, and its front end is lower than the upper side of the first support roller 1; the second support roller 6 is an active roller, which is located adjacent to the rear of the smooth platform 3, and is lower than the rear end of the smooth platform 3; the side pressure roller 5 is located adjacent to the rear of the cloth roll 7 on the second support roller 6, and can move forward to press on the upper rear side of the cloth roll 7; when cross-cutting, the cloth roll 7 goes to the second support roller 6; the pressing roller 2 is located at a low position to press the non-woven fabric 8 on the upper side of the first support roller 1, and the side pressure roller 5 presses on the upper rear side of the cloth roll 7, and the second support roller 6 rotates to tighten the non-woven fabric 8.

[0009] Specifically, the diameter of the pressing roller 2 in the embodiment of the utility model is larger than the diameter of the first supporting roller 1 .

[0010] Furthermore, a longitudinal cutting structure 9 is provided on the first frame in the embodiment of the utility model and in front of the first winding structure. The longitudinal cutting structure 9 includes an upper traction roller, a slitting roller, a lower traction roller and a plurality of longitudinal cutting knives arranged side by side on the left and right sides of the front side of the slitting roller. The longitudinal cutting knives are arranged in the left and right directions, and the non-woven fabric 8 passes around the front sides of the upper traction roller, the slitting roller and the lower traction roller in sequence from top to bottom.

[0011] Specifically, the number of the cross-cutting knives 4 in the embodiment of the utility model is two, one cross-cutting knife 4 is located at the front of the smooth platform 3, and the other cross-cutting knife 4 is located at the rear of the smooth platform 3; a slit is provided on the left and right edges of the smooth platform 3 for the cross-cutting knife 4 to pass through; the cross-cutting knife 4 is arranged along the front and back edges, and is driven to move left and right by the corresponding lateral driving structure on the lower side of the smooth platform 3, and its upper part passes through the slit upward.

[0012] Furthermore, the first winding structure in the embodiment of the utility model further includes a lifting beam 10, a motor 11 on the upper side of the lifting beam 10 and used to drive the top pressure roller 2, two slide rails 12 arranged side by side on the left and right, and two top pressure cylinders 13 arranged side by side on the left and right; the two slide rails 12 are respectively arranged on the left and right sides of the first frame, and are both arranged vertically, and are located directly above between the two first support rollers 1; the top pressure roller 2 is arranged on the lower side of the lifting beam 10, and the lifting beam 10 is arranged in the left and right directions and its left and right ends are respectively It is slidably mounted on two slide rails 12; two pressing cylinders 13 are synchronously driven and are respectively arranged between the two ends of the lifting beam 10 and the corresponding sides of the first frame; the pressing cylinder 13 is arranged vertically downward, and is hinged on the first frame, and the lower end of its telescopic rod is hinged to the upper side of the corresponding end of the lifting beam 10; when winding, the pressing cylinder 13 is in a partially extended state, and the pressing roller 2 presses on the upper side of the cloth roll 7 on the first supporting roller 1; when cross-cutting, the pressing cylinder 13 is in a fully extended state.

[0013] Furthermore, the second winding structure in the embodiment of the utility model also includes two flip arms 14 arranged side by side on the left and right and two flip cylinders 15 arranged side by side on the left and right; the flip arm 14 is arranged vertically, and the middle part is rotated by the left and right rotating shaft and is arranged at the rear end of the corresponding side of the second frame; the side pressure roller 5 is arranged between the upper ends of the two flip arms 14; the two flip cylinders 15 are driven synchronously and are respectively arranged between the two flip arms 14 and the corresponding sides of the second frame; the flip cylinder 15 is arranged in the front-to-back direction, which is hinged on the second frame, and the rear end of the telescopic rod is hinged to the lower end of the flip arm 14; when the flip cylinder 15 is extended, the side pressure roller 5 moves forward.

[0014] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are as follows: the embodiment of the utility model provides an online cross-cutting device for non-woven fabrics, which can realize cross-cutting, longitudinal cutting and winding of non-woven fabrics and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an online cross-cutting device for nonwoven fabrics provided in an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of the structure when winding;

[0017] Figure 3 yes Figure 1 Schematic diagram of the structure when winding;

[0018] Figure 4 It is a structural diagram of a smooth platform.

[0019] In the figure: 1 first support roller, 2 top pressure roller, 3 smooth platform, 4 cross-cutting knife, 5 side pressure roller, 6 second support roller, 7 cloth roll, 8 non-woven fabric, 9 longitudinal cutting structure, 10 lifting beam, 11 motor, 12 slide rail, 13 top pressure cylinder, 14 turning arm, 15 turning cylinder. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Example 1

[0022] Embodiment 1 provides an online cross-cutting device for nonwoven fabrics, which includes a first frame, a first winding structure, a traction structure, a longitudinal cutting structure 9, a transverse slitting structure and a second winding structure. The longitudinal cutting structure 9 is arranged at the front of the first frame, which is located in front of the first winding structure. It includes an upper traction roller, a slitting roller, a lower traction roller and a plurality of longitudinal cutters arranged side by side on the left and right sides of the front side of the slitting roller, and the longitudinal cutters are arranged in the left and right directions. The nonwoven fabric 8 passes around the front side of the upper traction roller, the slitting roller and the lower traction roller from top to bottom in turn, and passes between the slitting roller and the longitudinal cutter. The longitudinal cutting structure 9 is used to longitudinally cut and trim the nonwoven fabric 8, see the description of patent CN202120237248.5 for details. The traction structure is used to pull the nonwoven fabric 8, including multiple traction rollers.

[0023] Wherein, the first winding structure is arranged at the rear of the first frame and includes two first support rollers 1, a top pressure roller 2, a cloth pressing roll structure, a lifting beam 10, a motor 11, two left slide rails 12 and two top pressure cylinders 13, etc. The two first support rollers 1 are arranged side by side in front and back, and they are passive rollers, and they are arranged in the left and right directions. The top pressure roller 2 is an active roller, which is arranged in the left and right directions, and it is located directly above the two first support rollers 1. It is arranged on the lower side of the lifting beam 10 and is driven by the motor 11. The cloth pressing roll structure can move up and down, and it is used to press the two ends of the winding shaft. For details, please refer to the description of patent CN109775408B. Specifically, the cloth pressing roll structure is slidably arranged on the slide rail 12 and driven up and down by the corresponding cylinder. The two slide rails 12 are respectively arranged on the left and right sides of the first frame, and they are both arranged vertically, and they are located directly above the two first support rollers 1, and they are arranged side by side in the left and right directions. The lifting beam 10 is arranged in the left-right direction and its left and right ends are respectively slidably arranged on two slide rails 12. The motor 11 is arranged on the upper side of the lifting beam 10. Two top-pressing cylinders 13 are synchronously driven, arranged side by side on the left and right, and are respectively arranged between the two ends of the lifting beam 10 and the corresponding sides of the first frame. Specifically, the top-pressing cylinder 13 is arranged vertically downward, and is hinged (through a left-right rotating shaft) on the first frame, and the lower end of its telescopic rod is hinged (through a left-right rotating shaft) to the upper side of the corresponding end of the lifting beam 10. When winding, the top-pressing cylinder 13 is in a partially extended state, and the top-pressing roller 2 presses on the upper side of the cloth roll 7 on the first supporting roller 1. When cross-cutting, the top-pressing cylinder 13 is in a fully extended state.

[0024] Among them, the transverse slitting structure is arranged at the rear side of the first frame, and includes a smooth platform 3 arranged in the front-to-back direction and a transverse cutting knife 4 on it that can move left and right. The second winding structure is located adjacent to the rear of the transverse slitting structure, and includes the second frame and the side pressure roller 5 on it, two second support rollers 6, two flip arms 14 and two flip cylinders 15. The two second support rollers 6 are arranged side by side in front and back, and they are driven synchronously. The smooth platform 3 is arranged obliquely downward from front to back, and is located adjacent to the rear of the first support roller 1 (the first support roller 1 at the rear end), and its front end is lower than the upper side of the first support roller 1, and its surface is smooth. The second support roller 6 is an active roller, and it (the second support roller 6 at the front end) is located adjacent to the rear of the smooth platform 3, and it is lower than the rear end of the smooth platform 3, and it is arranged in the left and right directions. The side pressure roller 5 is located adjacent to the rear of the cloth roll 7 on the second support roller 6, and it can move forward to press on the rear upper side of the cloth roll 7. It is arranged between the upper ends of the two flip arms 14, and it is arranged in the left and right directions. The two flip arms 14 are arranged side by side. The flip arm 14 is arranged vertically, and the middle part thereof is arranged at the rear end of the corresponding side of the second frame through a left-right rotating shaft. The two flip cylinders 15 are synchronously driven, and are arranged side by side, and are respectively arranged between the two flip arms 14 and the corresponding side of the second frame. The flip cylinder 15 is arranged in the front-back direction, and can be located below the second support roller 6. It is hinged (through a left-right rotating shaft) on the second frame, and the rear end of its telescopic rod is hinged (through a left-right rotating shaft) with the lower end of the flip arm 14. When the flip cylinder 15 is extended, the side pressure roller 5 moves forward.

[0025] When cross-cutting, the cloth roll 7 is moved to the second support roller 6. The pressing roller 2 (optionally undriven) is located at a low position to press the nonwoven fabric 8 against the upper side of the first support roller 1, and the side pressing roller 5 presses against the upper rear side of the cloth roll 7. The second support roller 6 rotates (to rotate the cloth roll 7 in the tightening direction) to tighten the nonwoven fabric 8.

[0026] Specifically, the diameter of the top pressing roller 2 in the embodiment of the utility model is larger than the diameter of the first supporting roller 1. The top pressing roller 2 of the present patent is designed to be larger, firstly, the top pressing roller 2 can press the nonwoven fabric 8 to facilitate transverse slitting, and secondly, the pressing roll structure can be located below the lifting beam 10 when pressing the nonwoven fabric 8.

[0027] Example 2

[0028] Embodiment 2 provides an online cross-cutting device for nonwoven fabrics, and its structure is the same as that of embodiment 1. There are two cross-cutting knives 4 in this embodiment, one of which is located at the front of the smooth platform 3, and the other cross-cutting knife 4 is located at the rear of the smooth platform 3. A slit for the cross-cutting knife 4 to pass through is provided on the left and right sides of the smooth platform 3. The cross-cutting knife 4 is arranged along the front-back direction, and is driven to move left and right by the corresponding lateral driving structure (which is an existing structure and detailed description is omitted in this embodiment) on the lower side of the smooth platform 3, and the upper part thereof passes through the slit upward. Which cross-cutting knife 4 is used for cross-cutting depends on the fit between the nonwoven fabric 8 and the smooth platform 3. If the nonwoven fabric 8 is in contact with the front of the smooth platform 3, the cross-cutting knife 4 at the front is used.

[0029] Among them, "first" and "second" in this patent only serve to distinguish and have no other special meanings.

[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 in the protection scope of the present invention.

Claims

1. An online cross-cutting device for nonwoven fabrics, comprising a first frame and a first winding structure thereon, wherein the first winding structure comprises two first supporting rollers (1) arranged side by side in front and back, and a top pressure roller (2) and a cloth pressing roll structure above them, wherein the top pressure roller (2) and the cloth pressing roll structure can both move up and down; characterized in that: The two first support rollers (1) are passive rollers, and the pressing roller (2) is an active roller; the online cross-cutting device also includes a transverse slitting structure at the rear side of the first frame and a second winding structure adjacent to the rear of the transverse slitting structure; the transverse slitting structure includes a smooth platform (3) arranged in the front-to-back direction and a cross-cutting knife (4) thereon which can move left and right; the second winding structure includes a second frame and a side pressing roller (5) thereon and two second support rollers (6); the two second support rollers (6) are arranged side by side and driven synchronously; the smooth platform (3) is arranged obliquely downward from front to back, and is located adjacent to the rear of the first support roller (1), and its front end is lower than the upper side of the first support roller (1); the second support roller (6) is an active roller, and is located adjacent to the rear of the smooth platform (3), and is lower than the rear end of the smooth platform (3); the side pressing roller (5) is located adjacent to the rear of the cloth roll (7) on the second support roller (6), and can move forward to press on the rear upper side of the cloth roll (7); When cross-cutting is performed, the cloth roll (7) is moved to the second supporting roller (6); the pressing roller (2) is located at a low position to press the non-woven fabric (8) against the upper side of the first supporting roller (1); the side pressing roller (5) is pressed against the upper rear side of the cloth roll (7); and the second supporting roller (6) rotates to tighten the non-woven fabric (8).

2. The on-line cross-cutting device for nonwoven fabrics according to claim 1, characterized in that: The diameter of the top pressure roller (2) is larger than the diameter of the first supporting roller (1).

3. The online cross-cutting device for nonwoven fabrics according to claim 1, characterized in that: A longitudinal cutting structure (9) is provided on the first frame and in front of the first winding structure. The longitudinal cutting structure (9) comprises an upper traction roller, a slitting roller, a lower traction roller and a plurality of longitudinal cutting knives arranged side by side on the left and right sides of the front side of the slitting roller. The longitudinal cutting knives are arranged in the left and right directions. The nonwoven fabric (8) passes around the front side of the upper traction roller, the slitting roller and the lower traction roller in sequence from top to bottom.

4. The on-line cross-cutting device for nonwoven fabrics according to claim 1, characterized in that: The number of the crosscutting knives (4) is two, one of which is located at the front of the smooth platform (3) and the other is located at the rear of the smooth platform (3); a slit is provided on the upper edge of the smooth platform (3) in the left and right directions for the crosscutting knives (4) to pass through; the crosscutting knives (4) are arranged in the front-back direction, and are driven to move in the left and right directions by a corresponding lateral driving structure on the lower side of the smooth platform (3), and their upper parts pass through the slit upwards.

5. The on-line cross-cutting device for nonwoven fabrics according to claim 1, characterized in that: The first winding structure further comprises a lifting beam (10), a motor (11) on the upper side of the lifting beam (10) for driving a top pressure roller (2), two slide rails (12) arranged side by side on the left and right, and two top pressure cylinders (13) arranged side by side on the left and right; the two slide rails (12) are respectively arranged on the left and right sides of the first frame, and are both arranged vertically, and are located directly above the two first support rollers (1); the top pressure roller (2) is arranged on the lower side of the lifting beam (10), and the lifting beam (10) is arranged in the left and right directions, and its left and right ends are respectively slidably arranged on the two first support rollers (1). The cloth roll (7) is mounted on a slide rail (12); two pressing cylinders (13) are synchronously driven and are respectively arranged between the two ends of the lifting beam (10) and the corresponding sides of the first frame; the pressing cylinder (13) is arranged vertically downward, is hinged on the first frame, and the lower end of its telescopic rod is hinged to the upper side of the corresponding end of the lifting beam (10); when winding, the pressing cylinder (13) is in a partially extended state, and the pressing roller (2) presses on the upper side of the cloth roll (7) on the first supporting roller (1); when cross-cutting, the pressing cylinder (13) is in a fully extended state.

6. The on-line cross-cutting device for nonwoven fabrics according to claim 1, characterized in that: The second winding structure also includes two flipping arms (14) arranged side by side on the left and right and two flipping cylinders (15) arranged side by side on the left and right; the flipping arm (14) is arranged vertically, and the middle part thereof is arranged at the rear end of the corresponding side of the second frame through a left-right rotating shaft; the side pressure roller (5) is arranged between the upper ends of the two flipping arms (14); the two flipping cylinders (15) are driven synchronously and are respectively arranged between the two flipping arms (14) and the corresponding side of the second frame; the flipping cylinder (15) is arranged in the front-back direction, is hinged on the second frame, and the rear end of its telescopic rod is hinged to the lower end of the flipping arm (14); when the flipping cylinder (15) is extended, the side pressure roller (5) moves forward.

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