A cutting assembly and a nonwoven fabric slitting machine

Abstract

The application relates to the field of non-woven fabric production and particularly discloses a cutting assembly and a non-woven fabric slitting machine. The cutting assembly comprises a rotating roller and a cutting piece. The rotating roller comprises a roller body and rotating shafts connected to two ends of the roller body. The roller body is hollow. A plurality of strip holes are arranged on the side wall of the roller body. The cutting piece is arranged in multiple groups along the axis direction of the rotating roller. Each group of the cutting piece comprises a plurality of cutting knives corresponding to the strip holes. The cutting knife comprises a ring knife arranged outside the roller body and an insertion block connected to the inner side of the ring knife. The multiple insertion blocks of each group of the cutting piece are respectively clamped into different strip holes. A plurality of insertion blocks distributed along the same line are threadedly connected with an adjusting screw rod. The adjusting screw rod is rotationally connected with the roller body. One end of the adjusting screw rod penetrates through the roller body and is threadedly connected with a fastening nut. Compared with the mode of sequentially adjusting the positions of the cutting knives, the adjusting screw rod can jointly drive the multiple cutting knives to move together, and the adjusting efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of non-woven fabric production, and particularly relates to a cutting assembly and a non-woven fabric slitting machine. BACKGROUND

[0002] Non-woven fabric is also called non-woven cloth, and can be divided into spunlace non-woven fabric, heat-sealed non-woven fabric, spun-bond non-woven fabric, melt-blown non-woven fabric and the like according to different production processes. Among them, the production process of the spun-bond non-woven fabric is as follows: the polymer is polymerized into a net after high-temperature wire drawing, and then is bonded into cloth by hot rolling. In order to meet the use requirements of different non-woven fabric products, the non-woven fabric needs to be cut into the required width after production by a slitting machine.

[0003] In the related art, the non-woven fabric slitting machine comprises a rack, a cutting roller, a positioning roller and a driving motor, the cutting roller and the positioning roller are both rotatable with the rack, and the driving motor is used to drive the cutting roller to rotate. A plurality of positioning rings are connected to the outer side of the positioning roller at equal intervals, and an entering cloth area for the non-woven fabric to pass through is formed between adjacent positioning rings. A plurality of cutting pieces corresponding to the entering cloth areas are arranged at intervals on the outer side of the cutting roller, and the cutting piece comprises a plurality of annular cutters. A plurality of groups of non-woven fabrics enter from the corresponding entering cloth areas respectively, are positioned by two positioning rings, and the cutting precision is ensured, and then pass through the cutting roller and are further cut into the required width by the plurality of annular cutters.

[0004] The above slitting machine has the following technical defects: the annular cutters are arranged relatively densely on the cutting roller, and if the cutting width needs to be adjusted, the distance of the annular cutters of each cutting piece needs to be adjusted in sequence, and the whole adjustment process is relatively troublesome, which needs to be improved. SUMMARY

[0005] In order to facilitate the adjustment of the distance of the cutters, the present application provides a cutting assembly and a non-woven fabric slitting machine.

[0006] In the first aspect, the cutting assembly provided by the present application adopts the following technical scheme:

[0007] A cutting assembly comprises a rotating roller and a cutting piece, the rotating roller comprises a roller body and rotating shafts connected to both ends of the roller body, the roller body is hollow, a plurality of strip holes are arranged on the side wall of the roller body, and the length direction of the strip hole is arranged along the axis direction of the roller body;

[0008] The cutting piece is arranged in multiple groups along the axis direction of the rotating roller, each group of the cutting piece comprises a plurality of cutting knives corresponding to the strip holes, the cutting knife comprises an annular cutter arranged on the outer side of the roller body and an insertion block connected to the inner side of the annular cutter, and the plurality of insertion blocks of each group of the cutting piece are respectively clamped into different strip holes;

[0009] A plurality of the plug blocks distributed along the same straight line are threadedly connected with an adjusting screw rod, the adjusting screw rod is rotationally connected with the roller body, one end of the adjusting screw rod penetrates through the roller body and is threadedly connected with a fastening nut.

[0010] By adopting the above technical scheme, a plurality of cutting members correspond to a plurality of non-woven fabrics, so that the plurality of non-woven fabrics can be cut at the same time, and the efficiency is high.

[0011] When the slitting width of the non-woven fabric needs to be adjusted, the fastening nut is unscrewed, the adjusting screw rod is rotated, one of the plurality of cutting members is driven to move together, and the adjustment of the slitting width is realized. Compared with the single and sequential adjustment of the cutting knife position, the adjusting screw rod can drive a plurality of cutting knives to move together, and the adjustment efficiency is high.

[0012] Optionally, a spacer ring is arranged between adjacent cutting members, and the spacer ring is fixedly connected with the roller body.

[0013] By adopting the above technical scheme, the spacer ring plays a separating role, so as to facilitate the operator to distinguish and distinguish the plurality of cutting members; and the spacer ring plays a limiting role, so that the cutting knife can only move within the limited range.

[0014] Optionally, the spacer ring is connected with a buffer pad on both sides.

[0015] By adopting the above technical scheme, when the cutting knife moves close to the spacer ring to be attached, the buffer pad plays a buffering role to prevent the cutting knife from being damaged.

[0016] Optionally, a reinforcing rib is arranged on the inner side of the roller body.

[0017] By adopting the above technical scheme, the structural strength of the roller body is improved.

[0018] Optionally, the adjusting screw rod is threadedly connected with a back nut, and the back nut is arranged on the side away from the roller body of the fastening nut.

[0019] By adopting the above technical scheme, the loosening is prevented, and it is ensured that the adjusting screw rod cannot rotate during the cutting process.

[0020] In the second aspect, the non-woven fabric slitting machine provided by the application adopts the following technical scheme:

[0021] A non-woven fabric slitting machine comprises a rack, and the rack is provided with a guide assembly, a driving assembly and a cutting assembly.

[0022] Optionally, the rack has a feeding side and a discharging side, the guide assembly comprises a first guide roller, a second guide roller and a third guide roller which are rotationally connected to the rack, the first guide roller and the second guide roller are arranged on the feeding side, the third guide roller is arranged on the discharging side, the first guide roller is arranged above the second guide roller, the non-woven fabric passes through the first guide roller, the second guide roller and the third guide roller in sequence, and the non-woven fabric between the second guide roller and the third guide roller is in contact with the upper side of the ring cutter.

[0023] By adopting the above technical scheme, the non-woven fabric is guided by the first guide roller, the second guide roller and the third guide roller during the whole cutting process, so as to ensure the cutting accuracy.

[0024] Optionally, the upper side of the rack is provided with a spraying assembly, the spraying assembly comprises a spraying seat, a water inlet pipe, a spray head and a lifting cylinder, the cylinder body of the lifting cylinder is connected to the rack, the piston rod is arranged vertically downward and connected to the spraying seat, the water inlet pipe is connected to one side of the spraying seat, and the spray head is connected to the lower side of the spraying seat.

[0025] By adopting the above technical scheme, the non-woven fabric is sprayed and humidified, which plays a maintenance role and improves the strength of the non-woven fabric, and the cut position of the non-woven fabric is humidified, so that the debris is not easy to be raised, and the health of the employees is protected.

[0026] Optionally, the guide assembly further comprises a fourth guide roller and a fifth guide roller, the fifth guide roller is located on the side of the third guide roller away from the first guide roller, the fourth guide roller is located between the lower sides of the third guide roller and the fifth guide roller, a spraying area is formed between the third guide roller, the fourth guide roller and the fifth guide roller, and the spray head is opposite to the fourth guide roller.

[0027] By adopting the above technical scheme, the contact time of the non-woven fabric with the spraying area is increased, and the spraying and humidifying effect is improved.

[0028] Optionally, the driving assembly comprises a driving motor, a driving wheel, a driven wheel and a transmission belt, the body of the driving motor is connected to the rack, the output shaft is connected to the driving wheel, the driven wheel is connected to the rotating roller, and the transmission belt is sleeved between the driving wheel and the driven wheel.

[0029] By adopting the above technical scheme, the driving motor is started to drive the driving wheel to rotate, and then the transmission belt drives the driven wheel to rotate, so that the rotating roller rotates to complete the cutting of the non-woven fabric.

[0030] In summary, the present application has the following advantages:

[0031] 1. By adjusting the arrangement of the lead screws, multiple cutting knives can be driven to move together, and the adjustment efficiency is high.

[0032] 2. Multiple sets of cutting components correspond to multiple non-woven fabrics, allowing multiple non-woven fabrics to be cut simultaneously, resulting in high efficiency;

[0033] 3. The spray component serves two purposes: firstly, it provides a curing effect, increasing the strength of the nonwoven fabric; secondly, it keeps the cut edges of the nonwoven fabric moist, preventing debris from being stirred up and protecting the health of employees. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the nonwoven fabric slitting machine according to an embodiment of this application;

[0035] Figure 2 This is a side view schematic diagram of a nonwoven fabric slitting machine according to an embodiment of this application;

[0036] Figure 3 This is a side view of the cutting component and the guiding component according to an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of the structure of the first guide roller and the cutting assembly according to an embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the structure of the cutting component according to an embodiment of this application;

[0039] Figure 6 yes Figure 5 Enlarged view of region A in the middle;

[0040] Figure 7 This is a cross-sectional schematic diagram of the cutting component according to an embodiment of this application;

[0041] Figure 8 This is a schematic diagram of the cutting element and spacer ring according to an embodiment of this application.

[0042] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Feed side; 12. Discharge side; 2. Guide assembly; 21. First guide roller; 211. Roller shaft; 212. Limiting ring; 22. Second guide roller; 23. Third guide roller; 24. Fourth guide roller; 25. Fifth guide roller; 3. Drive assembly; 31. Drive motor; 32. Drive wheel; 33. Driven wheel; 34. Transmission belt; 4. Rotating roller; 41. Roller body; 411. Slot; 412. Reinforcing rib; 42. Rotating shaft; 5. Cutting component; 51. Cutting blade; 511. Ring blade; 512. Insert block; 6. Adjusting screw; 61. Fastening nut; 62. Back nut; 63. Internal hexagonal groove; 7. Spacer ring; 71. Buffer pad; 8. Spray assembly; 81. Spray seat; 82. Water inlet pipe; 83. Nozzle; 84. Lifting cylinder; 9. Spray area. Detailed Implementation

[0043] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0044] The embodiment of the present application discloses a non-woven fabric slitting machine.

[0045] With reference to Figure 1 The non-woven fabric slitting machine comprises a rack 1, a cutting assembly for continuously cutting the non-woven fabric strip, a guiding assembly 2 for accurately guiding the non-woven fabric strip and a driving assembly 3 for driving the cutting assembly to work.

[0046] It should be noted that the non-woven fabric is first subjected to primary slitting after being formed, to form a plurality of non-woven fabric wide strips with the same width, and is subjected to secondary slitting if necessary, to further slit the non-woven fabric wide strips into a plurality of non-woven fabric narrow strips. The non-woven fabric slitting machine of the embodiment of the present application is suitable for the secondary slitting process, but is not suitable for the primary slitting.

[0047] In addition, the movement of the non-woven fabric is realized by being pulled by a pulling mechanism of the next process, so that the slitting machine can not be provided with the pulling mechanism.

[0048] With reference to Figure 2 、 Figure 3 The cutting assembly comprises a rotating roller 4 and a cutting piece 5. The rotating roller 4 comprises a roller body 41 and rotating shafts 42 fixedly connected to both ends of the roller body 41, the rotating shafts 42 are rotationally connected with the rack 1, and the cutting piece 5 is connected with the roller body 41. When the rotating roller 4 rotates around its own axis, the cutting piece 5 can be driven to slit the passing non-woven fabric.

[0049] With reference to Figure 2 、 Figure 3 The driving assembly 3 comprises a driving motor 31, a driving wheel 32, a driven wheel 33 and a transmission belt 34. The body of the driving motor 31 is fixedly connected with the rack 1, the output shaft of the driving motor 31 is parallel to the rotating shafts 42, and the output shaft of the driving motor 31 is fixedly connected with the driving wheel 32. The rotating shafts 42 close to the driving motor 31 are fixedly connected with the driven wheel 33, and the transmission belt 34 is transmissionally sleeved between the driving wheel 32 and the driven wheel 33. When the driving motor 31 is started, the driving wheel 32 is driven to rotate, and then the driven wheel 33 is driven to rotate through the transmission belt 34, so that the rotating roller 4 is rotated to complete the cutting of the non-woven fabric.

[0050] With reference to Figure 2 、 Figure 3, one side of the rack 1 is the feeding side 11 and the other side is the discharging side 12, the non-woven fabric enters from the feeding side 11 and moves out from the discharging side 12. The guide assembly 2 comprises a first guide roller 21, a second guide roller 22, a third guide roller 23, a fourth guide roller 24 and a fifth guide roller 25 which are rotationally connected with the rack 1, the first guide roller 21 and the second guide roller 22 are arranged on the feeding side 11, and the third guide roller 23, the fourth guide roller 24 and the fifth guide roller 25 are arranged on the discharging side 12. The first guide roller 21, the third guide roller 23 and the fifth guide roller 25 are arranged on the upper side of the rotating roller 4, the second guide roller 22 is arranged on the lower side of the first guide roller 21, the fifth guide roller 25 is located on the side of the third guide roller 23 away from the first guide roller 21, and the fourth guide roller 24 is located between the lower sides of the third guide roller 23 and the fifth guide roller 25.

[0051] The non-woven fabric sequentially passes through the first guide roller 21, the second guide roller 22, the third guide roller 23, the fourth guide roller 24 and the fifth guide roller 25 to ensure cutting accuracy. The part of the non-woven fabric from the second guide roller 22 to the third guide roller 23 is inclined and in contact with the upper side of the cutting member 5, so that the rotating cutting member 5 can slit the non-woven fabric.

[0052] Referring to Figure 2 , Figure 3 The area formed between the third guide roller 23, the fourth guide roller 24 and the fifth guide roller 25 is the spraying area 9, and the rack 1 is connected with the spraying assembly 8 opposite to the spraying area 9. The spraying assembly 8 comprises a spraying seat 81, a water inlet pipe 82, a spray head 83 and a lifting cylinder 84, the cylinder body of the lifting cylinder 84 is fixedly connected with the upper end of the rack 1, the piston rod is vertically arranged downward and is fixedly connected with the spraying seat 81. After the lifting cylinder 84 is started, the spraying seat 81 can move up and down to enter and exit the spraying area 9. The water inlet pipe 82 is fixedly connected on one side of the spraying seat 81, the spray head 83 is fixedly connected on the lower side of the spraying seat 81 in intervals, the spray head 83 is opposite to the fourth guide roller 24, and a water passage is arranged in the spraying seat and communicates the water inlet pipe 82 and the spray head 83. The water inlet pipe 82 is a hose and the end far away from the spraying seat 81 is connected with a water pump, so that the spray head 83 can spray water mist after the water pump is started, so that the humidity of the spraying area 9 is increased, the non-woven fabric is humidified and maintained, and the cuttings are prevented from being raised.

[0053] Referring to Figure 1 , Figure 4The first guide roller 21 includes a roller shaft 211 and a limiting ring 212 fixedly connected to the outside of the roller shaft 211. The roller shaft 211 is rotatably connected to the frame 1. In this embodiment, six limiting rings 212 are evenly spaced, forming limiting channels between each pair of limiting rings 212. The six limiting rings 212 form a total of five limiting channels through which the nonwoven fabric strip passes. In other embodiments, the number of limiting rings 212 can be three, four, five, or more. The structures of the second guide roller 22, the third guide roller 23, the fourth guide roller 24, and the fifth guide roller 25 are the same as those of the first guide roller 21, and will not be described again here.

[0054] Reference Figure 4 , Figure 5 Five sets of cutting components 5 are evenly spaced along the axis 211 of the rotating roller 4 and correspond one-to-one with the limiting channels. In this embodiment, each set of cutting components 5 includes four cutting blades 51. In other embodiments, the number of cutting blades 51 in each set of cutting components 5 may be two, three or more.

[0055] It should be noted that the position of the cutting blade 51 can be adjusted by sliding. If the cutting blade 51 is slid to face the limiting ring 212, then the cutting blade 51 will not perform the slitting function. Therefore, the number of cutting blades 51 performing the slitting function in each set of cutting components 5 can be one, two, three or four, so that each nonwoven fabric can be slid into 2-5 strips, which is suitable for various slitting needs.

[0056] Reference Figure 6 , Figure 7 The roller body 41 is hollow, and a reinforcing rib 412 with a cross-shaped cross section is fixedly connected to the inner side of the roller body 41. The side wall of the roller body 41 is provided with four slots 411. The number of slots 411 is the same as the number of cutting blades 51 in each group of cutting parts 5. The length direction of the slots 411 is arranged along the axis of the roller body 41.

[0057] Reference Figure 6 , Figure 7 The cutting blade 51 includes a ring blade 511 and an insert block 512 fixedly connected to the inner side of the ring blade 511. The ring blade 511 is slidably sleeved on the outer side of the roller body 41, so the cutting blade 51 can slide along the roller shaft 211. The insert block 512 is engaged in the strip hole 411, so the cutting blade 51 cannot rotate around the roller shaft 211.

[0058] Reference Figure 7 , Figure 8 The four inserts 512 of each group of cutting parts 5 are staggered to be inserted into the four slots 411 respectively. The five inserts 512 distributed along the same straight line are connected to the adjusting screw 6 by thread. Therefore, rotating one of the adjusting screws 6 can drive one of the cutting blades 51 of each group of cutting parts 5 to move together, resulting in high adjustment efficiency.

[0059] Need to explain, each group of cutting pieces 5 plug-in block 512 inserted into the strip hole 411 order are the same. For example, with Figure 4 Viewing angle, each group of cutting pieces 5 four cutting knives 51 from top to bottom are named as knife A, knife B, knife C and knife D, knife A of each group of cutting pieces 5 is connected to the same adjusting screw 6, knife B, knife C and knife D are the same, so as to adjust the cutting width in order.

[0060] Referring to Figure 6 , the adjusting screw 6 is rotatably connected with the roller body 41, the end of the adjusting screw 6 away from the driving assembly 3 penetrates out of the roller body 41 and is threadedly connected with a fastening nut 61 and a back nut 62, the back nut 62 is arranged on the side of the fastening nut 61 away from the roller body 41. After the cutting width adjustment is completed, the fastening nut 61 is screwed to abut against the roller body 41, and then the back nut 62 is screwed to abut against the fastening nut 61, so that the adjusting screw 6 cannot rotate, and the end face of the adjusting screw 6 is provided with an internal hexagonal groove 63, so as to facilitate the operator to rotate the adjusting screw 6.

[0061] Referring to Figure 5 , Figure 8 , the outer side of the roller body 41 is fixedly connected with six spacer rings 7 at equal intervals, the spacer rings 7 correspond to the positions of the limiting rings 212 one by one, so that each group of cutting pieces 5 has the spacer rings 7 on both sides. The spacer rings 7 are fixedly connected with the rubber buffer pads 71 on both sides, and the sum of the thicknesses of the spacer rings 7 and the two buffer pads 71 is less than the thickness of the limiting ring 212, so as to move the individual cutting knives 51 to be opposite to the limiting ring 212. The spacer rings 7 separate the groups of cutting pieces 5, play a limiting role, so that the cutting knives 51 can only move within the limited range.

[0062] The implementation principle of the non-woven fabric slitting machine of the embodiment is:

[0063] When the cutting width needs to be adjusted, the back nut 62 and the fastening nut 61 are unscrewed, the adjusting screw 6 is rotated to drive the position of the cutting knife 51, so as to adjust the width of the adjacent cutting knife 51, and the cutting width adjustment is realized.

[0064] When the cutting strip number needs to be adjusted, the adjusting screw 6 is rotated, so that the cutting knife 51 close to the spacer ring 7 is moved to abut against the buffer pad 71, and the cutting knife 51 does not bear the cutting function, so that the cutting strip number is reduced by one.

[0065] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A cutting assembly comprising a rotating roller (4) and a cutting member (5), characterized in that: The rotating roller (4) comprises a roller body (41) and rotating shafts (42) connected to both ends of the roller body (41), the roller body (41) is hollow, and a plurality of strip holes (411) are arranged on the side wall of the roller body (41), the length direction of the strip holes (411) is arranged along the axis direction of the roller body (41); A plurality of groups of the cutting members (5) are arranged along the axis direction of the rotating roller (4), each group of the cutting members (5) comprises a plurality of cutting knives (51) corresponding to the strip holes (411) one by one, the cutting knife (51) comprises a ring knife (511) arranged outside the roller body (41) and an insertion block (512) connected to the inside of the ring knife (511), and the plurality of insertion blocks (512) of each group of the cutting members (5) are respectively clamped into different strip holes (411); A plurality of insertion blocks (512) distributed along the same straight line are threadedly connected with an adjusting screw rod (6), the adjusting screw rod (6) is rotationally connected with the roller body (41), one end of the adjusting screw rod (6) penetrates through the roller body (41) and is threadedly connected with a fastening nut (61); therefore, rotating one of the adjusting screw rods (6) can drive the cutting knives (51) of each group of the cutting members (5) to move together.

2. The cutting assembly of claim 1, wherein: A spacer ring (7) is arranged between adjacent cutting members (5), and the spacer ring (7) is fixedly connected with the roller body (41).

3. The cutting assembly of claim 2, wherein: The spacer ring (7) is connected with a buffer pad (71) on both sides.

4. The cutting assembly of claim 1, wherein: The inside of the roller body (41) is provided with a reinforcing rib (412).

5. The cutting assembly of claim 1, wherein: The adjusting screw rod (6) is threadedly connected with a back nut (62), and the back nut (62) is arranged on the side away from the roller body (41) of the fastening nut (61).

6. A nonwoven fabric slitting machine comprising a frame (1), characterized in that: The rack (1) is provided with a guide assembly (2), a driving assembly (3) and the cutting assembly of any one of claims 1-5.

7. The nonwoven fabric slitter as claimed in claim 6, characterized in that: One side of the rack (1) is an inlet side (11), and the other side is an outlet side (12), the guide assembly (2) comprises a first guide roller (21), a second guide roller (22) and a third guide roller (23) rotationally connected with the rack (1), the first guide roller (21) and the second guide roller (22) are arranged on the inlet side (11), and the third guide roller (23) is arranged on the outlet side (12), the first guide roller (21) is arranged on the upper side of the second guide roller (22), the non-woven fabric passes through the first guide roller (21), the second guide roller (22) and the third guide roller (23) in sequence, and the non-woven fabric between the second guide roller (22) and the third guide roller (23) is in contact with the upper side of the ring knife (511).

8. The nonwoven fabric slitter as claimed in claim 7, characterized in that: A spraying assembly (8) is arranged on the upper side of the rack (1), the spraying assembly (8) comprises a spraying seat (81), a water inlet pipe (82), a spray head (83) and a lifting cylinder (84), the cylinder body of the lifting cylinder (84) is connected with the rack (1), the piston rod is vertically arranged downward and connected with the spraying seat (81), the water inlet pipe (82) is connected on one side of the spraying seat (81), and the spray head (83) is connected on the lower side of the spraying seat (81).

9. The nonwoven fabric slitter as claimed in claim 8, characterized in that: The guide assembly (2) further comprises a fourth guide roller (24) and a fifth guide roller (25), the fifth guide roller (25) is located on the side of the third guide roller (23) away from the first guide roller (21), the fourth guide roller (24) is located between the lower side of the third guide roller (23) and the fifth guide roller (25), a spraying area (9) is formed between the third guide roller (23), the fourth guide roller (24) and the fifth guide roller (25), and the spray head (83) is opposite to the fourth guide roller (24).

10. The nonwoven fabric slitter as claimed in claim 6, wherein: The driving assembly (3) comprises a driving motor (31), a driving wheel (32), a driven wheel (33) and a transmission belt (34), the body of the driving motor (31) is connected with the rack (1), the output shaft is connected with the driving wheel (32), the driven wheel (33) is connected with the rotating roller (4), and the transmission belt (34) is sleeved between the driving wheel (32) and the driven wheel (33).

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