Nonwoven fabric cutting device

Abstract

The utility model relates to a non-woven fabric slitting device, including a frame, on which a supporting roller and two supporting plates symmetrically located above the supporting roller are arranged, the supporting roller is rotatably arranged on the frame and is connected to a first motor arranged on the frame, two horizontally distributed sliding guide rods are fixedly arranged between the two supporting plates, a plurality of slidable cutting knife racks are penetrated on the two sliding guide rods, a circular cutting knife located above the supporting roller and cooperating with the supporting roller is rotatably arranged on the cutting knife rack, a transmission screw screwed on a plurality of cutting knife racks is rotatably arranged between the two supporting plates, and the transmission screw is connected to a second motor on one of the supporting plates. This non-woven fabric slitting device can conveniently and quickly adjust the spacing between the circular cutting knives to be suitable for slitting operations of non-woven fabrics of different widths, has better applicability, and reduces production costs.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabric production equipment, in particular to a non-woven fabric slitting device. Background Art

[0002] During the production process of non-woven fabrics, it is necessary to slit the non-woven fabrics and slit the large-width non-woven fabrics into multiple small-width non-woven fabrics of the same width to meet the use requirements of the non-woven fabrics. The non-woven fabric slitting device in the prior art generally slits the non-woven fabric by a cutting roller provided with several circular cutting knives in conjunction with the conveying of the non-woven fabrics. However, the spacing between the several circular cutting knives on the cutting roller is fixed, and actual production involves slitting non-woven fabrics of different widths. Non-woven fabrics of different widths have different requirements for the spacing between the circular cutting knives. In order to adapt to the slitting operation of non-woven fabrics of different widths, the cutting roller needs to be replaced as a whole. Not only is the operation more troublesome, but the manufacturer also needs to be equipped with multiple cutting rollers with different circular cutting knife spacings, which increases the production cost.

[0003] In view of the above problems, the present invention makes improvements. Utility Model Content

[0004] The utility model provides a nonwoven fabric slitting device, which solves the above-mentioned problems existing in the prior art during use.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A non-woven fabric slitting device comprises a frame, on which a supporting roller and two supporting plates symmetrically located above the supporting rollers are arranged, the supporting rollers are rotatably arranged on the frame and are transmission-connected to a first motor arranged on the frame, two horizontally distributed sliding guide rods are fixedly arranged between the two supporting plates, a plurality of slidable cutting knife racks are passed through the two sliding guide rods, a circular cutting knife located above the supporting roller and cooperating with the supporting roller is rotatably arranged on the cutting knife rack, a transmission screw screwed to the plurality of cutting knife racks is rotatably arranged between the two supporting plates, and the transmission screw is transmission-connected to a second motor arranged on one of the support plates.

[0007] Preferably, the sliding guide rod is hollow inside to form a sliding cavity, and a tightening groove is provided on the side wall of the sliding cavity along the length direction of the sliding guide rod, and a tightening strip matching the tightening groove and extending into the sliding cavity is slidably arranged in the tightening groove, and a tightening rod that is transmission-connected to a tightening cylinder arranged on one of the support plates is passed through the sliding cavity, and a plurality of tightening wedges evenly distributed along the length direction of the tightening rod are formed on the tightening rod, and a plurality of wedge grooves matching the tightening wedges are provided on the inner side surface of the tightening strip, and the tightening wedges can enter or leave the wedge groove as the tightening rod moves, and when the tightening wedge leaves the wedge groove and abuts against the inner side surface of the tightening strip, the outer side surface of the tightening strip abuts against the cutting frame.

[0008] Preferably, two tightening grooves and two tightening strips are symmetrically arranged on the same supporting guide rod.

[0009] Preferably, two tension strips arranged on the same support guide rod are each formed with a plurality of tension spring seats along the length direction of the tension strips, and a tension spring with its two ends respectively fixedly connected to the two tension spring seats is arranged between two tension spring seats located opposite to each other on the two tension strips.

[0010] Preferably, a plurality of linear slide rails are vertically arranged on the frame and are located on one side of a support plate. The support plate is fixedly connected to a sliding seat of the linear slide rails. The frame is provided with a lifting cylinder whose output shaft is fixedly connected downward to the support plate.

[0011] Preferably, two supporting rollers are arranged in the horizontal direction, and the two supporting rollers are connected to each other through the cooperation of a synchronous wheel and a synchronous belt, one of the supporting rollers is connected to the first motor, and two groups of circular cutters are arranged on the cutter frame, and the two groups of circular cutters cooperate with the two supporting rollers respectively.

[0012] Preferably, two mounting arms are formed on the cutter frame, a bearing is provided at the center of the circular cutter and the circular cutter is located between the two mounting arms, and mounting bolts provided on the mounting arms pass through the bearings and are screwed with mounting nuts.

[0013] To sum up, the beneficial effect of the utility model is that when the spacing between several circular cutters needs to be adjusted to adapt to the slitting operation of non-woven fabrics of different widths, the second motor drives the wire transmission rod to drive several cutter racks to slide synchronously on the supporting slide rod, thereby adjusting the spacing between several cutter racks and thus adjusting the spacing between several circular cutters. The adjustment process is very convenient and quick, which makes the slitting device more applicable and reduces the manufacturer's production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0017] Figure 3 It is a partial enlarged schematic diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the middle cutting knife holder and the circular cutting knife of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the sliding guide rod in the utility model.

[0020] In the figure: 1. frame; 2. supporting roller; 3. support plate; 4. first motor; 5. sliding guide rod; 51. sliding cavity; 52. tightening groove; 53. tightening strip; 531. wedge groove; 532. tension spring seat; 54. tightening rod; 541. tightening wedge; 55. tightening cylinder; 56. tension spring; 6. cutter frame; 61. mounting arm; 62. mounting bolt; 63. mounting nut; 7. circular cutter; 71. bearing; 8. transmission screw; 9. second motor; 10. linear slide rail; 11. lifting cylinder; 12. cleaning roller; 13. third motor. DETAILED DESCRIPTION

[0021] The following will be combined with the attached embodiment of the present utility model Figure 1-5 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As shown in the figure, a non-woven fabric slitting device includes a frame 1, on which a supporting roller 2 and two supporting plates 3 symmetrically located above the supporting roller 2 are arranged, the supporting roller 2 is rotatably arranged on the frame 1 and is transmission-connected to a first motor 4 arranged on the frame 1, two horizontally distributed sliding guide rods 5 are fixedly arranged between the two supporting plates 3, a plurality of slidable cutting racks 6 are penetrated on the two sliding guide rods 5, a circular cutting knife 7 located above the supporting roller 2 and cooperating with the supporting roller 2 is rotatably arranged on the cutting rack 6, a transmission screw 8 screwed to the plurality of cutting racks 6 is rotatably arranged between the two supporting plates 3, and the transmission screw 8 is transmission-connected to a second motor 9 arranged on one of the supporting plates 3.

[0023] Specifically, the support plate 3 is arranged on the frame 1: a plurality of linear slide rails 10 are vertically arranged on the frame 1 and are located on one side of the support plate 3; the support plate 3 is fixedly connected to the sliding seat of the linear slide rail 10; and a lifting cylinder 11 is arranged on the frame 1 and is fixedly connected downwardly to the support plate 3 with an output shaft.

[0024] In the above embodiment, the non-woven fabric to be cut conveyed along the production line passes between the supporting roller 2 and the circular cutter 7 (the conveyance of the non-woven fabric on the production line is achieved by the traction roller in the production line, which belongs to the prior art and will not be described here), so that the non-woven fabric is clamped between the supporting roller 2 and the circular cutter 7 and the circular cutter 7 cuts into the non-woven fabric, and the first motor 4 drives the supporting roller 2 to rotate so that the non-woven fabric passes stably between the supporting roller 2 and the circular cutter 7 and is conveyed forward. While the non-woven fabric is conveyed forward, the rotating circular cutter 7 cooperates with the supporting roller 2 to cut the non-woven fabric, and the spacing between the circular cutters 7 needs to be adjusted to adapt to the cutting of non-woven fabrics of different widths. During operation, the second motor 9 drives the wire transmission rod to drive the plurality of cutting racks 6 to slide synchronously on the supporting slide rod, adjust the spacing between the plurality of cutting racks 6, and thus adjust the spacing between the plurality of circular cutters 7. The adjustment process is very convenient and quick, which makes the slitting device more applicable and reduces the production cost of the manufacturer. After the spacing adjustment of the circular cutters 7 is completed, the lifting cylinder 11 drives the support plate 3 to slide longitudinally on the linear slide rail 10, thereby driving the circular cutter 7 to slide longitudinally relative to the supporting roller 2, so that the non-woven fabric can pass through between the supporting roller 2 and the circular cutter 7, and the circular cutter 7 can cooperate with the supporting roller 2 to cut non-woven fabrics of different thicknesses.

[0025] Furthermore, the sliding guide rod 5 is hollow inside to form a sliding cavity 51, and a tightening groove 52 is opened on the side wall of the sliding cavity 51 along the length direction of the sliding guide rod 5, and a tightening strip 53 matching the tightening groove 52 and extending into the sliding cavity 51 is slidably arranged in the tightening groove 52, and a tightening rod 54 drivingly connected to a tightening cylinder 55 arranged on one of the support plates 3 is passed through the sliding cavity 51, and a plurality of tightening wedges 541 evenly distributed along the length direction of the tightening rod 54 are formed on the tightening rod 54, and a plurality of wedge grooves 531 matching the tightening wedges 541 are opened on the inner side surface of the tightening strip 53, and the tightening wedges 541 can enter or leave the wedge grooves 531 as the tightening rod 54 moves, and when the tightening wedges 541 leave the wedge grooves 531 and abut against the inner side surface of the tightening strip 53, the outer side surface of the tightening strip 53 abuts against the cutting frame 6.

[0026] In the above preferred embodiment, after the spacing between the circular cutters 7 is adjusted to the right position, the tightening cylinder 55 drives the tightening rod 54 to drive the tightening wedge 541 to slide in the sliding chamber 51, so that the tightening wedge 541 moves away from the position aligned with the wedge groove 531, and the top wedge is pressed against the inner side surface of the tightening strip 53. Under the pushing of the tightening wedge 541, the outer side surface of the tightening strip 53 extends out of the tightening groove 52 and presses against the part of the cutter frame 6 that passes through the supporting slide rod. The pressing of the tightening strip 53 limits the sliding of the cutter frame 6 on the supporting slide rod, so that the cutter frame 6 and the circular cutter are pressed against each other. 7 is stably maintained at the position after the spacing of the circular cutters 7 is adjusted to the right position, ensuring the stability of the circular cutters 7 when slitting the non-woven fabric and ensuring the quality of slitting. When it is necessary to adjust the spacing between the circular cutters 7, the tightening cylinder 55 drives the tightening wedge 541 to slide to the position aligned with the wedge groove 531, so that the tightening wedge 541 leaves the position of pressing against the inner side of the tightening strip 53, so that the tightening strip 53 can retract into the sliding cavity 51 in the tightening groove 52 and leave the position of pressing against the cutter frame 6, so that the cutter frame 6 can slide smoothly on the supporting guide rod driven by the transmission screw 8.

[0027] Preferably, two tightening grooves 52 and tightening strips 53 are symmetrically arranged on the same support guide rod, which strengthens the limiting effect of the tightening strip 53 on the cutting frame 6 after it is tightly pressed against the cutting frame 6, thereby improving the stability of the circular cutter 7 when cutting non-woven fabrics.

[0028] Preferably, a plurality of tension spring seats 532 are formed on the two tension strips 53 arranged on the same supporting guide rod along the length direction of the tension strips 53, and a tension spring 56 with two ends fixedly connected to the two tension spring seats 532 is arranged between the two tension spring seats 532 located opposite to each other on the two tension strips 53. When the tension wedge 541 moves to abut against the inner side surface of the tension strip 53 and is aligned with the wedge groove 531, the two tension strips 53 slide toward each other under the action of the plurality of tension springs 56 and retract into the sliding cavity 51, and the tension wedge 541 is stuck in the wedge groove 531, ensuring that the tension strip 53 leaves the position of abutting against the cutter frame 6, thereby ensuring that the cutter frame 6 can slide smoothly on the supporting guide rod driven by the transmission screw 8 to adjust the spacing between the circular cutters 7.

[0029] Preferably, two supporting rollers 2 are arranged in the horizontal direction, and the two supporting rollers 2 are connected to each other through the cooperation of a synchronous wheel and a synchronous belt. One of the supporting rollers 2 is connected to the first motor 4 in terms of transmission. Two groups of circular cutters 7 are arranged on the cutter frame 6. The two groups of circular cutters 7 are aligned one by one and cooperate with the two supporting rollers 2 respectively. The two supporting rollers 2 cooperate with the two groups of circular cutters 7 to cut the non-woven fabric multiple times, thereby ensuring the cutting quality of the non-woven fabric.

[0030] Preferably, two mounting arms 61 are formed on the cutting knife frame 6, a bearing 71 is provided at the center of the circular cutting knife 7 and the circular cutting knife 7 is located between the two mounting arms 61, and a mounting bolt 62 is passed through the mounting arm 61 and is screwed with a mounting nut 63 after passing through the bearing 71. The circular cutting knife 7 installed on the cutting knife frame 6 through the above structure can be easily replaced after removing the mounting nut 63 and the mounting bolt 62, thereby ensuring the cutting performance of the circular cutting knife 7, and the bearing 71 enables the circular cutting knife 7 to smoothly cooperate with the rotation of the supporting roller 2 to cut the non-woven fabric, thereby ensuring the quality of the cutting.

[0031] Furthermore, two cleaning rollers 12 distributed up and down and located on one side of the supporting roller 2 are rotatably arranged on the frame 1, and the two cleaning rollers 12 are connected by gear transmission, and one of the cleaning rollers 12 is connected to the third motor 13 arranged on the frame 1.

[0032] In the above preferred embodiment, the slit nonwoven fabric passes between two cleaning rollers 12. The two cleaning rollers 12 driven by the third motor 13 clean up the debris attached to the nonwoven fabric during the slitting process, thereby ensuring the quality of the slit nonwoven fabric.

[0033] 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. A nonwoven fabric slitting device, comprising a frame (1), characterized in that: The frame (1) is provided with a supporting roller (2) and two supporting plates (3) symmetrically located above the supporting roller (2); the supporting roller (2) is rotatably arranged on the frame (1) and is transmission-connected to a first motor (4) arranged on the frame (1); two horizontally distributed sliding guide rods (5) are fixedly arranged between the two supporting plates (3); a plurality of slidable cutting racks (6) are passed through the two sliding guide rods (5); a circular cutting knife (7) located above the supporting roller (2) and cooperating with the supporting roller (2) is rotatably arranged on the cutting rack (6); a transmission screw (8) screwed to the plurality of cutting racks (6) is rotatably arranged between the two supporting plates (3); the transmission screw (8) is transmission-connected to a second motor (9) arranged on one of the supporting plates (3).

2. A nonwoven fabric slitting device according to claim 1, characterized in that: The sliding guide rod (5) is hollow inside to form a sliding cavity (51), a tightening groove (52) is provided on the side wall of the sliding cavity (51) along the length direction of the sliding guide rod (5), a tightening strip (53) matching with the tightening groove (52) and extending into the sliding cavity (51) is slidably arranged in the tightening groove (52), a tightening rod (54) drivingly connected to a tightening cylinder (55) arranged on one of the support plates (3) is passed through the sliding cavity (51), and the tightening rod (54) is provided with a screw thread. A plurality of tightening wedges (541) are evenly distributed along the length direction of the tightening rod (54); a plurality of wedge grooves (531) matching the tightening wedges (541) are formed on the inner side surface of the tightening strip (53); the tightening wedges (541) can enter or leave the wedge grooves (531) as the tightening rod (54) moves; when the tightening wedges (541) leave the wedge grooves (531) and abut against the inner side surface of the tightening strip (53), the outer side surface of the tightening strip (53) abuts against the cutter frame (6).

3. A nonwoven fabric slitting device according to claim 2, characterized in that: Two tightening grooves (52) and two tightening strips (53) are symmetrically arranged on the same supporting guide rod.

4. A nonwoven fabric slitting device according to claim 3, characterized in that: A plurality of tension spring seats (532) are formed on two tension strips (53) disposed on the same support guide rod along the length direction of the tension strips (53), and a tension spring (56) is disposed between two tension spring seats (532) located opposite to each other on the two tension strips (53), with both ends of the tension spring seats (532) respectively fixedly connected to the two tension spring seats (532).

5. The nonwoven fabric slitting device according to claim 1, characterized in that: A plurality of linear slide rails (10) are vertically arranged on the frame (1) and are located on one side of the support plate (3); the support plate (3) is fixedly connected to a sliding seat of the linear slide rails (10); and a lifting cylinder (11) is arranged on the frame (1) and has an output shaft fixedly connected downwardly to the support plate (3).

6. The nonwoven fabric slitting device according to claim 1, characterized in that: Two supporting rollers (2) are arranged in the horizontal direction, and the two supporting rollers (2) are connected to each other through the cooperation of a synchronous wheel and a synchronous belt, one of the supporting rollers (2) is connected to the first motor (4) through a transmission connection, and two groups of circular cutters (7) are arranged on the cutter frame (6), and the two groups of circular cutters (7) cooperate with the two supporting rollers (2) respectively.

7. The nonwoven fabric slitting device according to claim 1, characterized in that: Two mounting arms (61) are formed on the cutter frame (6), a bearing (71) is provided at the center of the circular cutter (7) and the circular cutter (7) is located between the two mounting arms (61), and a mounting bolt (62) is provided on the mounting arm (61), passes through the bearing (71) and is screwed with a mounting nut (63).

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