CN213201794U

CN213201794U - Melt-blown fabric slitting device

Info

Publication number: CN213201794U
Application number: CN202021649507.7U
Authority: CN
Inventors: 罗可文
Original assignee: Linhai Hengtai Non Woven Co ltd
Current assignee: Linhai Hengtai Non Woven Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-05-14
Anticipated expiration: 2030-08-10

Abstract

The utility model relates to a melt-blown fabric slitting device, it includes the frame and arranges tensioning roller, top rest and lower knife rest on base cloth conveying path, the cover is equipped with the drive belt between tensioning roller, top rest and the lower knife rest, be provided with in the frame and be used for ordering about the drive assembly of lower knife rest rotation, be used for ordering about tensioning roller and top rest are close to each other or keep away from first adjusting part, are used for ordering about tensioning roller and top rest are close to or keep away from the second adjusting part and a plurality of trimming knife that are used for pruning warp of base cloth behind top rest and the lower knife rest slitting. The utility model discloses a relative position between tensioning roller, upper knife rest and the lower knife rest is adjusted to first adjusting part and second adjusting part to trim deckle edge through the deburring sword, the base cloth strip that finally obtains is cut open completely and the edge is comparatively level and smooth, is favorable to improving the processingquality of slitting device to the base cloth.

Description

Melt-blown fabric slitting device

Technical Field

The utility model belongs to the technical field of the technique of non-woven fabrics and specifically relates to a melt-blown fabric slitting device is related to.

Background

Melt-blown fabrics, also known as melt-blown non-woven fabrics and melt-blown non-woven fabrics, are the most core materials of the mask. The melt-blown fabric is a wide material after being processed and formed, and needs to be cut by a slitting device so as to be divided into narrow materials suitable for production, and the divided non-woven fabric needs to be rolled after being divided.

The existing splitting machine comprises a machine frame and a pair of knife rests arranged on the machine frame, wherein each knife rest comprises a roll shaft and a plurality of circular disc knives arranged in a straight line shape. When the base cloth advances, the circular cutters on the two cutter holders are arranged on the surfaces of the two sides of the melt-blown cloth and cut the melt-blown cloth into strips. In the process, the melt-blown fabric sequentially passes through the processes of elastic deformation, plastic deformation and fracture, one part of base fabric strips are cut open, the other part of base fabric strips are torn open, and therefore when the thickness of the base fabric to be cut changes, the condition that the base fabric is subjected to insufficient shearing force between the circular cutters exists, and the processing quality of the base fabric is affected.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough and provide a melt-blown fabric slitting device that exists among the prior art, it has reached the purpose that improves base cloth processingquality through adjusting the relative position between upper knife rest and the lower knife rest.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a melt-blown fabric slitting device, includes frame, top rest and lower knife rest, still includes the tensioning roller, the cover is equipped with the drive belt between tensioning roller, top rest and the lower knife rest, be provided with in the frame and be used for ordering about the drive assembly of lower knife rest rotation, be used for ordering about first adjusting part, be used for ordering about are close to each other or keep away from to tensioning roller and top rest the warp is close to or keep away from to the second adjusting part and a plurality of that are used for pruning the warp of base cloth behind top rest and the lower knife rest slitting.

By adopting the technical scheme, for base cloth with different thicknesses, the relative position between the upper tool rest and the lower tool rest is changed through the first adjusting assembly and the second adjusting assembly, and the position of the tensioning roller is changed simultaneously, so that the driving belt keeps proper tensioning force, and further the driving assembly drives the tensioning roller, the upper tool rest and the lower tool rest to rotate; in the process, the relative positions of the tensioning roller, the upper tool rest and the lower tool rest are adjusted through the first adjusting assembly and the second adjusting assembly, burrs are trimmed through the trimming knife, finally obtained base cloth strips are completely cut open, the edges of the base cloth strips are smooth, and the processing quality of the base cloth strips by the strip cutting device is improved.

The utility model discloses further set up to: the lower tool rest rotates to be connected with in the frame, drive assembly including set up in driving motor in the frame, rotate to be connected with driving motor is last the action wheel, set up in from driving wheel and cover on the lower tool rest are located the action wheel with from the driving belt on the driving wheel.

Through adopting above-mentioned technical scheme, constitute the belt drive structure who uses driving motor as the driving source through the action wheel, from driving wheel and drive belt, can avoid interfering the position of driving belt to the power of driving the rotation of tensioning roller, upper knife rest and lower knife rest is transferred between the multiaxis.

The utility model discloses further set up to: first adjusting part including set up in first bidirectional screw and first slide rail, sliding connection on the second adjusting part in a pair of first layer board on the first slide rail, set up in first drive nut on the first layer board, tensioning roller and top rest rotate respectively and connect on two first layer boards, two first drive nuts respectively with two sections threaded connection on the first bidirectional screw.

Through adopting above-mentioned technical scheme, the screw rod pair has the advantage that start-up moment is little, the auto-lock is good to first two-way screw rod drives two first layer boards fixed point and removes and be close to each other or keep away from, and then adjusts the distance between tensioning roller and the upper knife rest.

The utility model discloses further set up to: the second adjusting assembly comprises a second screw rod and a second slide rail which are arranged on the rack, a second supporting plate which is connected to the second slide rail in a sliding mode, and a second transmission nut which is arranged on the second supporting plate and is in threaded connection with the second screw rod, and the first adjusting assembly is arranged on the second supporting plate.

Through adopting above-mentioned technical scheme, the lead screw pair has the advantage that start-up moment is little, the auto-lock is good to the second lead screw drives the fixed point of second layer board and removes, and then adjusts the interval between tensioning roller, upper knife rest and the lower knife rest.

The utility model discloses further set up to: the cutting edge of the trimming knife is arranged facing the lower knife rest, and the surface of the trimming knife is set as a friction surface.

By adopting the technical scheme, the base cloth after being cut into strips directly faces the cutting edge of the trimming knife to move, and the rough edges at the edges of the base cloth strips are sheared by the cutting edge of the trimming knife and then are rubbed by the friction surface to be separated from the base cloth strips, so that the edges of the base cloth strips after being cut into strips are smooth and have no rough edges, and the improvement of the product quality is facilitated.

The utility model discloses further set up to: the frame is provided with a plurality of mounting seats, the mounting seats are provided with mounting grooves which are embedded with the trimming knives and fixing bolts which are connected with the mounting seats in a threaded mode, and one ends of the fixing bolts penetrate into the mounting grooves and abut against the surfaces of the trimming knives.

By adopting the technical scheme, after long-term trimming, the cutting edge of the trimming knife becomes dull, at the moment, the fixing bolt needs to be loosened, the trimming knife can be separated from the mounting groove, then the new or repaired trimming knife is replaced into the mounting groove, and then the fixing bolt is screwed down, so that the maintenance and replacement of the trimming knife are facilitated while the better connection strength is ensured.

The utility model discloses further set up to: the conveying device is characterized in that two groups of conveying rollers are arranged on the rack and are respectively close to the feeding end and the discharging end of the rack.

By adopting the technical scheme, in the shearing process, when the part of the base cloth strip needing to be sheared passes through the upper knife rest, the lower knife rest and the trimming knife, the base cloth strip can be rolled up in different degrees, so that the edge of the base cloth strip is in a lotus leaf shape, the base cloth is wound by the conveying rollers and is limited to be rolled up, and the processing quality of the slitting device is improved.

To sum up, the utility model discloses a beneficial technological effect does: the relative positions of the tensioning roller, the upper tool rest and the lower tool rest are adjusted through the first adjusting assembly and the second adjusting assembly, burrs are trimmed through the trimming knife, finally obtained base cloth strips are completely cut, the edges of the base cloth strips are smooth, and the processing quality of the base cloth strips by the strip cutting device is improved.

Drawings

Fig. 1 is a schematic structural view of the meltblown fabric slitting device of the present invention.

Fig. 2 is a schematic structural diagram of the slitting mechanism of the present invention.

Fig. 3 is a schematic structural view of the trimming mechanism of the present invention.

In the figure, 1, a frame; 2. a slitting mechanism; 21. a tension roller; 22. an upper tool rest; 23. a lower tool rest; 24. a drive assembly; 241. a drive motor; 242. a driving wheel; 243. a driven wheel; 244. a drive belt; 25. a first adjustment assembly; 251. a first bidirectional screw; 252. a first slide rail; 253. a first pallet; 254. a first drive nut; 26. a second adjustment assembly; 261. a second lead screw; 262. a second slide rail; 263. a second pallet; 264. a second drive nut; 27. a transmission belt; 3. a trimming mechanism; 31. a mounting seat; 32. mounting grooves; 33. fixing the bolt; 34. trimming knives; 35. a friction surface; 4. and (4) a conveying roller.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

referring to fig. 1, for the utility model discloses a melt-blown fabric slitting device, including frame 1, set up slitting mechanism 2 and the deburring mechanism 3 that is located slitting mechanism 2 low reaches on frame 1 and two pairs of conveying rollers 4 that are close to frame 1 material loading end and unloading end setting respectively. During actual processing, the base cloth winds the conveying roller 4 at the feeding end and advances to the slitting mechanism 2, then the base cloth slit by the slitting mechanism 2 is trimmed by the trimming mechanism 3, and finally the base cloth winds the conveying roller 4 at the discharging end and is discharged.

The slitting mechanism 2 comprises a tension roller 21, an upper tool rest 22 arranged at the downstream of the tension roller 21, a lower tool rest 23 rotatably connected to the frame 1, a driving assembly 24 arranged on the frame 1 and used for driving the lower tool rest 23 to rotate, a first adjusting assembly 25 used for driving the tension roller 21 and the upper tool rest 22 to approach or separate from each other, and a second adjusting assembly 26 used for driving the tension roller 21 and the upper tool rest 22 to approach or separate from the lower tool rest 23. In addition, the tension roller 21, the upper blade holder 22 and the lower blade holder 23 are provided with pulleys, and a transmission belt 27 is provided between the pulleys.

Referring to fig. 2, the driving assembly 24 includes a driving motor 241 disposed on the frame 1, a driving wheel 242 rotatably connected to the driving motor 241, a driven wheel 243 disposed on the lower tool rest 23, and a driving belt 244 disposed on the driving wheel 242 and the driven wheel 243. The belt transmission structure using the driving motor 241 as a driving source is composed of the driving pulley 242, the driven pulley 243, and the driving belt 244, so that interference with the position of the transmission belt 27 can be avoided, so that the force for rotating the tension roller 21, the upper blade holder 22, and the lower blade holder 23 can be transmitted among a plurality of shafts.

The second adjusting assembly 26 includes a second lead screw 261 and a second slide rail 262 which are disposed on the frame 1, a second support plate 263 which is slidably connected to the second slide rail 262, and a second transmission nut 264 which is disposed on the second support plate 263 and is in threaded connection with the second lead screw 261. The screw pair has the advantages of small starting torque and good self-locking, so that the second screw 261 drives the second supporting plate 263 to move at a fixed point, and further the distance between the tensioning roller 21, the upper tool rest 22 and the lower tool rest 23 is adjusted.

The first adjusting assembly 25 includes a first bidirectional screw 251 and a first slide rail 252 disposed on the second support plate 263, a pair of first support plates 253 slidably connected to the first slide rail 252, and a first transmission nut 254 disposed on the first support plates 253. The tensioning roller 21 and the upper tool rest 22 are respectively and rotatably connected to two first supporting plates 253, and two first transmission nuts 254 are respectively and threadedly connected with two sections of threads on the first bidirectional screw rod 251. The screw pair has the advantages of small starting torque and good self-locking, so that the first bidirectional screw 251 drives the two first supporting plates 253 to move at a fixed point and to approach or separate from each other, and further the distance between the tension roller 21 and the upper tool rest 22 is adjusted.

Referring to fig. 3, the trimming mechanism 3 includes a plurality of pairs of mounting seats 31 arranged in a line on the frame 1, mounting grooves 32 formed in the mounting seats 31, trimming blades 34 fitted in the mounting grooves 32 of the pair of mounting seats 31, and fixing bolts 33 inserted in the mounting seats 31, and one end of each fixing bolt 33 is inserted in the mounting groove 32 and abuts against the surface of the trimming blade 34. Wherein the edge of the trimming blade 34 is disposed facing the lower blade holder 23, and the surface of the trimming blade 34 is provided as a frictional surface 35. The base cloth after being cut into strips directly faces the cutting edge of the trimming knife 34 to move, and the rough edges at the edges of the base cloth strips are sheared by the cutting edge of the trimming knife 34 and then are rubbed by the friction surface 35 to be separated from the base cloth strips, so that the edges of the base cloth strips after being cut into strips are smooth and have no rough edges, and the improvement of the product quality is facilitated. However, after long-term trimming, the edge of the trimming blade 34 becomes dull, and at this time, the fixing bolt 33 needs to be loosened, the trimming blade 34 can be separated from the mounting groove 32, and then a new or repaired trimming blade 34 is replaced into the mounting groove 32, and then the fixing bolt 33 is tightened, so that the maintenance and replacement of the trimming blade 34 are facilitated while the good connection strength is ensured.

The implementation principle of the embodiment is as follows: for base fabrics with different thicknesses, the relative position between the upper tool rest 22 and the lower tool rest 23 is changed through the first adjusting assembly 25 and the second adjusting assembly 26, and the position of the tension roller 21 is changed at the same time, so that the proper tension is kept for the transmission belt 27, and the drive assembly 24 drives the tension roller 21, the upper tool rest 22 and the lower tool rest 23 to rotate. When the base fabric passes between the upper blade holder 22 and the lower blade holder 23, the upper blade holder 22 and the lower blade holder 23 can apply a sufficient shearing force to the base fabric so that the base fabric is cut. Finally, the burrs of the cut base cloth strips are removed through the trimming knife 34, and the finally obtained base cloth strips are completely cut and have smooth edges.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a melt-blown fabric slitting device, includes frame (1), upper knife rest (22) and lower knife rest (23), its characterized in that: still include tensioning roller (21), the cover is equipped with drive belt (27) between tensioning roller (21), top rest (22) and bottom rest (23), be provided with drive assembly (24) that are used for driving bottom rest (23) rotation on frame (1), be used for driving tensioning roller (21) and top rest (22) are close to each other or keep away from first adjusting part (25), are used for driving tensioning roller (21) and top rest (22) are close to or keep away from second adjusting part (26) of bottom rest (23) motion and a plurality of trimming sword (34) that are used for pruning the warp of base cloth behind top rest (22) and bottom rest (23) slitting.

2. The meltblown fabric slitting device according to claim 1, wherein: lower knife rest (23) rotate connect in on frame (1), drive assembly (24) including set up in driving motor (241) on frame (1), rotate connect in driving wheel (242) on driving motor (241), set up in driven wheel (243) on lower knife rest (23) and cover are located driving wheel (242) and driven driving belt (244) on wheel (243).

3. The meltblown fabric slitting device according to claim 1, wherein: the first adjusting assembly (25) comprises a first bidirectional screw rod (251) and a first slide rail (252) which are arranged on the second adjusting assembly (26), a pair of first supporting plates (253) which are connected onto the first slide rail (252) in a sliding mode, and a first transmission nut (254) which is arranged on the first supporting plates (253), wherein the tensioning roller (21) and the upper tool rest (22) are respectively connected onto the two first supporting plates (253) in a rotating mode, and the two adjusting nuts are respectively connected with two sections of threads on the first bidirectional screw rod (251) in a threaded mode.

4. The meltblown fabric slitting device according to claim 1, wherein: the second adjusting component (26) comprises a second screw rod (261) and a second sliding rail (262) which are arranged on the rack (1), a second supporting plate (263) which is connected to the second sliding rail (262) in a sliding mode, and a second transmission nut (264) which is arranged on the second supporting plate (263) and is in threaded connection with the second screw rod (261), and the first adjusting component (25) is arranged on the second supporting plate (263).

5. The meltblown fabric slitting device according to claim 1, wherein: the cutting edge of the trimming knife (34) is arranged facing the lower knife rest (23), and the surface of the trimming knife (34) is set as a friction surface (35).

6. The meltblown fabric slitting device according to claim 1, wherein: be provided with a plurality of mount pads (31) on frame (1), be provided with on mount pad (31) with mounting groove (32), the threaded connection of deburring sword (34) scarf joint in fixing bolt (33) on mount pad (31), the one end of fixing bolt (33) is worn extremely in mounting groove (32) and contradict in the surface of deburring sword (34).

7. The meltblown fabric slitting device according to claim 1, wherein: the automatic feeding device is characterized in that two groups of conveying rollers (4) are arranged on the rack (1), and the two groups of conveying rollers (4) are respectively close to the feeding end and the discharging end of the rack (1).