CN211471926U - Cutting device suitable for non-woven fabric fiber web burrs - Google Patents

Abstract

A cutting device suitable for burrs of a non-woven fabric fiber web comprises a bottom cutter transmission shaft, left and right trapezoidal lead screws and a track cross brace, wherein two ends of the bottom cutter transmission shaft are respectively combined with left and right wallboards of a rack through a bearing with a seat; the left and right external spline shaft sleeves with internal spline lantern rings are respectively arranged at two ends of the bottom knife transmission shaft in a symmetrical mode, bottom knives are respectively and fixedly arranged at the inner ends of the two internal spline lantern rings, branch knife seats are respectively arranged at the outer ends of the two internal spline lantern rings through bearings, the lower parts of the two branch knife seats are respectively combined with the trapezoidal screw rod at the corresponding end through nuts, and the lower ends of the branch knife seats are clamped on the rail cross braces; the upper ends of the two sub-cutter seats are respectively provided with an upper cutter through a cutter mounting frame.

Description

Cutting device suitable for non-woven fabric fiber web burrs

Technical Field

The utility model relates to a non-woven fabrics machinery and side cut mechanical device, it relates to one kind specifically to be applicable to the unedged resection device of the fluffy pine fibre web of non-woven fabrics, can adjust deckle edge excision width on line.

Background

The width of a non-woven fabric product of the existing non-woven fabric production line is mostly 2300 mm-3300 mm, raw material fibers are loosened and carded and then are paved into fluffy fiber nets through a cross lapping machine, the width of each fluffy fiber net is larger than the width range of a finished product by 200 mm-400 mm, the excessive fiber nets are distributed on two sides of the whole width, parameters such as uniformity, thickness and uniformity of the partial fiber nets do not meet the requirements set by the product process, if the fluffy fiber nets are processed into the non-woven fabric, irregular edges can be formed, if the non-woven fabric is formed through a subsequent consolidation process, the non-woven fabric is unqualified, and at the moment, burrs are cut off to form waste products which cannot be utilized, so that great waste is formed; if the cut-off is carried out before the cloth is formed, the cut-off can be recycled through an engineering pipeline and enters the opening and carding processes of the non-woven cloth production line again to be made into a fiber web, so that raw materials in a certain proportion are saved, and the production cost is effectively reduced.

The fiber web laid by the cross lapping machine is fluffy and soft, needs to be supported among a plurality of procedures on a production line, and the actual width of the fiber web cannot be accurately fixed at a value and needs to be changed frequently due to the difference between the production process of the non-woven fabric and the width of a final product. Therefore, the burr removing device is required to provide support for the web in the width direction and remove burrs on both sides of the web.

The existing burr cutting device can not adjust the width of cut burr when the production line of non-woven fabric normally operates, and the production line must be stopped or the production line is stopped completely, the trimming bottom knife is adjusted to the required position, then the upper blade and the fixing mechanism thereof are adjusted to the position forming the knife edge with the bottom knife, and then the starting operation can be carried out, so that the production line operates. The use of such a burr removing device actually causes quality fluctuation of the entire production line, and waste of an unsatisfactory fabric and waste of hydraulic power, electric power, and manpower are generated when the nonwoven fabric is pieced. Meanwhile, the shutdown of the whole production line causes the reduction of the effective opening rate, and the total production of the non-woven fabric is reduced, thereby affecting the benefit.

In order to meet the requirements of cost reduction, process adjustment and convenient operation in the market of the non-woven fabric production line, the characteristics of stable rough edge cutting of the fiber web of the non-woven fabric production line, online adjustment of the cutting range and convenience for workers to operate are required to be met.

Disclosure of Invention

The utility model discloses an aim at just to the weak point that exists among the above-mentioned prior art and provide a flexible side cut device that the structure is more reasonable, can satisfy non-woven fabrics production line fibre web deckle edge excision requirement.

The utility model discloses a but position-adjusting's cutter mechanism realizes excising the adjustment of width under the prerequisite of production line work not suspending, steadily excises the fibre web deckle edge in succession to make things convenient for the workman to carry out the operation of spinning-in when production technology adjustment or raw and other materials change variety.

The utility model discloses when the adjustment breadth, only need through rotating the operating parts like the hand wheel, make with install simultaneously that the branch cutter seat of cutter and dead knife rotates through the trapezoidal lead screw that self-control nut is connected to make the axial displacement of branch cutter seat along transmission shaft and lead screw, when reacing the excision position that accords with the breadth requirement, the stall operating parts, under the auto-lock action of trapezoidal lead screw, divide cutter seat rigidity no longer to change. The operation does not need to respectively adjust the positions of the bottom cutter and the upper cutter, does not need to stop the operation of a production line, simplifies the operation and improves the production efficiency.

The purpose of the utility model can be realized by adopting the following technical measures:

the utility model discloses a cutting device suitable for non-woven fabric fiber web deckle edge includes that both ends are respectively through the bed knife transmission shaft that takes the pedestal bearing to combine with the left and right wallboard of frame, install the left and right trapezoidal lead screw below the bed knife transmission shaft in a parallel, symmetrical mode, and install the track stull below the left and right trapezoidal lead screw, between the wallboard of frame left and right sides in parallel; the outer ends of the left and right trapezoidal lead screws are respectively combined with the frame wall plate on the corresponding side through second bearings with seats, and the inner ends (opposite arrangement ends) of the left and right trapezoidal lead screws are respectively combined with the track cross braces through third bearings with seats; the left and right external spline shaft sleeves with internal spline lantern rings are respectively arranged at two ends of a transmission shaft of the bed knife in a symmetrical mode, the bed knife is respectively and fixedly arranged at the inner ends (opposite arrangement ends) of the two internal spline lantern rings, the outer ends of the two internal spline lantern rings are respectively provided with a branch cutter holder through a bearing, the lower parts of the two branch cutter holders are respectively combined with a trapezoidal screw rod at the corresponding end through nuts, and the lower end of the branch cutter holder is clamped on a track cross brace; the upper ends of the two sub-cutter seats are respectively provided with an upper cutter through a cutter mounting rack; the utility model discloses a bed knife transmission shaft, including bed knife transmission shaft, bed knife inboard is installed with the mode that circumference distributes through installing the support bar mount pad on the bed knife transmission shaft about lieing in, two sets of a plurality of support bars about the bed knife inboard is installed relatively respectively, the support bar is installed on the bed knife transmission shaft through installing. (simultaneously rotates along with a transmission shaft of the bed knife to provide support and power for the working procedure of the fiber net before and after trimming.)

In the utility model, the outer ends of the left and right trapezoidal screws are respectively combined with the power source; the rotation of the trapezoidal lead screw drives the slitting cutter seat and the inner spline lantern ring connected with the slitting cutter seat through the bearing to slide along the axial direction of the transmission shaft of the bed knife through the outer spline shaft sleeve, so that the meshing position of the bed knife and the upper cutter is changed, and the online adjustment of the trimming width of the fiber web is realized.

In the utility model, one end of the transmission shaft of the bed knife is combined with the power source; the rotary cutting machine is driven by a power source to rotate, power is transmitted to the inner spline lantern ring through the outer spline shaft sleeve, the bed knife is driven to rotate synchronously, and burrs of a fiber net are cut at the meshing position of the bed knife and the upper cutter.

The utility model discloses in divide the side contact cooperation of recess and track stull that the cutter seat set up through tip down, for dividing the cutter seat along the spacing assurance that provides in axial, the vertical direction when bed knife transmission shaft axis direction slides.

The utility model discloses in the surface diameter of support bar when circumference distributes on the bed knife transmission shaft adjusts along with the change of bed knife diameter, and makes the change of width direction under the promotion of the left and right sides internal spline lantern ring, support when guaranteeing the web width change of fibre.

When the inner spline lantern ring rotates under the action of the outer spline shaft sleeve, the branch cutter holder and the inner spline lantern ring are connected through the bearing, so that the branch cutter holder and the inner spline lantern ring can be kept static and do not rotate.

Furthermore, the matching between the external spline shaft sleeve and the internal spline sleeve ring of the utility model needs to be tight, and the spline form can be changed into a key which can meet the transmission torque and has the axial guiding function or a spline with different tooth forms; the matching surfaces of the external spline shaft sleeve and the internal spline lantern ring, the left side surface, the right side surface and the upper surface of the track cross brace are required to be as smooth as possible, so that the resistance of the parting cutter holder in moving on the bed knife transmission shaft is reduced.

Side and upper surface and the contact of dividing cutter seat lower part notch of track stull, for dividing when cutter seat moves in the axial, guaranteed to divide cutter seat spacing with the axial vertical direction is ascending.

Connect trapezoidal lead screw and branch cutter holder's nut and trapezoidal lead screw when rotating relatively, because the operating mode requires to keep the fibre web not receive the pollution, can not add emollient (like lubricating oil, lubricating grease), and need rotate in a flexible way.

The bearing of connecting branch cutter holder and the internal spline lantern ring must be able to bear radial force and certain axial force simultaneously.

The bed knife of the utility model can select different bed knife diameters according to different production technologies.

Support bar along with bed knife transmission shaft synchronous revolution, and both ends are close to with the bed knife on the width direction, produce support and stirring effect to it when the fibre web passes through between the bed knife of both sides, make things convenient for the workman from accepting between the process around cutting edge when the production line is new.

The working principle of the utility model is as follows:

firstly, a transmission shaft of the bed knife rotates under the action of a driving device such as a motor, and power is transmitted to an inner spline lantern ring through an outer spline shaft sleeve to drive the bed knife to rotate synchronously; the inner spline lantern ring is connected with the slitting knife seat through a bearing, so that the slitting knife seat does not rotate when the inner spline lantern ring rotates; thirdly, burrs are cut off at the meshing part of an upper cutter and a bottom cutter of a fiber net which is laid by a cross lapping machine in a non-woven fabric production line; fourthly, when the width of the fiber web needs to be changed, the trapezoidal screw rod can be rotated, the slitting cutter seat, the inner spline lantern ring, the upper cutter and the bottom cutter can simultaneously and synchronously move along the axial direction of the bottom cutter transmission shaft through the movement of the nut on the trapezoidal screw rod, and the relative positions of the slitting cutter seat, the inner spline lantern ring, the upper cutter and the bottom cutter are not changed, so that the position of the meshing position of the upper cutter and the bottom cutter is changed, and the width of rough edges of the fiber web is changed and cut; and fifthly, the bottom knife transmission shaft does not stop rotating while the second-mentioned axial movement is carried out, and a plurality of support bars arranged on the bottom knife transmission shaft provide support and transmission for the process carrying of the fiber web before and after trimming.

The utility model has the advantages as follows:

1. the utility model discloses when adjusting the fibre web deckle edge excision width, trapezoidal lead screw rotates when only needing through the operating parts, need not to carry out all the other operations, has greatly simplified workman's operation.

2. The utility model discloses a change of fibre web deckle edge excision width under the moving prerequisite of production line does not stop, it is undulant because of the product quality who shuts down the cause effectively to have improved the production line, has reduced the loss because of the energy and the raw and other materials that the parking produced.

3. The utility model discloses the deckle edge excision mechanism of width direction both sides can adjust alone, does not influence each other, and deckle edge excision width adjustment is nimble changeable.

4. The utility model discloses a fibre web deckle edge excision width adjustment under the continuous moving prerequisite of production line to guaranteed the online adjustment of product width, the nimble convenience of technology adjustment reduces the down time, has promoted production line output and benefit greatly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view taken along the direction of fig. a-a.

Number in the figure: 1 is a frame, 2 is a bearing with a seat, 3 is a bed knife transmission shaft, 4 is a second bearing with a seat, 5 is a trapezoidal lead screw, 6 is a nut, 7 is a third bearing with a seat, 8 is a track cross brace, 9 is an external spline shaft sleeve, 10 is an internal spline lantern ring, 11 is a bed knife, 12 is a dividing cutter seat, 13 is a cutter mounting frame, 14 is an upper cutter, 15 is a support bar mounting seat, 16 is a support bar

Detailed Description

The invention will be further described with reference to the following examples (drawings):

as shown in fig. 1 and 2, the cutting device for burrs of a nonwoven fabric web of the present invention comprises a bed knife transmission shaft 3, two ends of which are respectively combined with left and right wallboards of a frame through a bearing with a seat 2, left and right trapezoidal screws 5 arranged below the bed knife transmission shaft in a parallel and symmetrical manner, and a track cross brace 8 arranged in parallel below the left and right trapezoidal screws and between the left and right wallboards of the frame; the outer ends of the left and right trapezoidal lead screws 5 are respectively combined with the frame wall plate on the corresponding side through second bearings with seats 4, and the inner ends (opposite arrangement ends) of the left and right trapezoidal lead screws 5 are respectively combined with the track cross braces 8 through third bearings with seats 7; the left and right external spline shaft sleeves 9 with internal spline lantern rings 10 are respectively arranged at two ends of the bottom knife transmission shaft 3 in a symmetrical mode, bottom knives 11 are respectively and fixedly arranged at the inner ends (opposite arrangement ends) of the two internal spline lantern rings 10, branch knife seats 12 are respectively arranged at the outer ends of the two internal spline lantern rings 10 through bearings, the lower parts of the two branch knife seats 12 are respectively combined with the trapezoidal screw rods 5 at the corresponding ends through nuts 6, and the lower ends of the branch knife seats 12 are clamped on the track cross braces 8; the upper ends of the two sub-cutter seats 12 are respectively provided with an upper cutter 14 through a cutter mounting frame 13; the inner sides of the left and right bed knives 11 are respectively and oppositely provided with a left group of support bars 16 and a right group of support bars 16, and the support bars 16 are arranged on the bed knife transmission shaft 3 in a circumferential distribution mode through support bar mounting seats 15 arranged on the bed knife transmission shaft 3. (simultaneously rotates along with the transmission shaft 3 of the bed knife to provide support and power for the working procedure of the fiber net before and after trimming.)

In the utility model, the outer ends of the left and right trapezoidal screws 5 are respectively combined with a power source; the trapezoidal lead screw 5 rotates to drive the slitting cutter seat 12 and the inner spline lantern ring 10 connected with the slitting cutter seat 12 through the bearing to slide along the axial direction of the bottom cutter transmission shaft 3 through the outer spline shaft sleeve 9, so that the meshing position of the bottom cutter 11 and the upper cutter 14 is changed, and the online adjustment of the trimming width of the fiber web is realized.

In the utility model, one end of the bed knife transmission shaft 3 is combined with a power source; the rotary cutting machine is driven by a power source to rotate, power is transmitted to the inner spline lantern ring 10 through the outer spline shaft sleeve 9, the bottom cutter 11 is driven to rotate synchronously, and burrs of a fiber web are cut at the meshing position of the bottom cutter 11 and the upper cutter 14.

The utility model discloses in divide cutter seat 12 through the recess that the tip set up down and the side contact cooperation of track stull 8, for dividing cutter seat 12 along the 3 axis directions of bed knife transmission shaft when sliding, the spacing on the vertical direction provides the assurance.

The utility model discloses in the surface diameter of support bar 16 when circumference distributes on bed knife transmission shaft 3 adjusts along with the change of bed knife 11 diameter, and makes the change of width direction under the promotion of the left and right sides internal spline lantern ring 10, guarantees the support when the web width of fibre changes.

When the internal spline lantern ring 10 rotates under the action of the external spline shaft sleeve 9, the parting cutter seat 12 and the internal spline lantern ring 10 are connected through a bearing, so that the parting cutter seat and the internal spline lantern ring can be kept static and do not rotate.

Claims (5)

1. A cutting device suitable for burrs of a nonwoven fabric fiber web is characterized in that: the device comprises a bed knife transmission shaft (3) with two ends respectively combined with left and right wallboards of a rack through a bearing (2) with a seat, left and right trapezoidal lead screws (5) arranged below the bed knife transmission shaft in a parallel and symmetrical mode, and a track cross brace (8) arranged below the left and right trapezoidal lead screws and between the left and right wallboards of the rack in parallel; the outer ends of the left and right trapezoidal lead screws are respectively combined with the frame wall plate on the corresponding side through second bearings with seats, and the inner ends of the left and right trapezoidal lead screws are respectively combined with the track cross braces through third bearings with seats; the left and right external spline shaft sleeves (9) with internal spline lantern rings (10) are respectively arranged at two ends of a bottom knife transmission shaft in a symmetrical mode, bottom knives (11) are respectively and fixedly arranged at the inner ends of the two internal spline lantern rings (10), slitting knife seats (12) are respectively arranged at the outer ends of the two internal spline lantern rings through bearings, the lower parts of the two slitting knife seats are respectively combined with trapezoidal lead screws (5) at corresponding ends through nuts, and the lower ends of the slitting knife seats are clamped on track cross braces (8); the upper ends of the two sub-cutter seats are respectively provided with an upper cutter (14) through a cutter mounting rack (13); the utility model discloses a bed knife, including bed knife transmission shaft (3), bed knife inboard is relative install respectively about being located two sets of a plurality of support bars (16), the support bar is installed on bed knife transmission shaft (3) with the mode that the circumference distributes through support bar mount pad (15) of installing on bed knife transmission shaft (3).

2. A cutting device suitable for flash of a nonwoven web according to claim 1 wherein: the outer ends of the left and right trapezoidal lead screws (5) are respectively combined with a power source; the rotation of the trapezoidal lead screw drives the slitting cutter seat (12) and the inner spline lantern ring (10) connected with the slitting cutter seat through the bearing to slide along the axial direction of the transmission shaft of the bottom cutter through the outer spline shaft sleeve (9), so that the meshing position of the bottom cutter (11) and the upper cutter (14) is changed, and the online adjustment of the trimming width of the fiber web is realized.

3. A cutting device suitable for flash of a nonwoven web according to claim 1 wherein: one end of the bed knife transmission shaft (3) is combined with a power source; the rotary cutting machine is driven by a power source to rotate, power is transmitted to the inner spline lantern ring (10) through the outer spline shaft sleeve (9), the bottom cutter (11) is driven to rotate synchronously, and burrs of a fiber web are cut at the meshing position of the bottom cutter (11) and the upper cutter (14).

4. A cutting device suitable for flash of a nonwoven web according to claim 1 wherein: the sub-cutter seat (12) is in contact fit with the side face of the track cross brace (8) through a groove arranged at the lower end part, and provides guarantee for limiting in the axial direction and the vertical direction when the sub-cutter seat slides along the axis direction of the bed knife transmission shaft (3).

5. A cutting device suitable for flash of a nonwoven web according to claim 1 wherein: the diameter of the outer surface of the supporting strips (16) when the supporting strips are circumferentially distributed on the bottom knife transmission shaft (3) is adjusted along with the change of the diameter of the bottom knife (11), and the supporting strips are pushed by the left and right internal spline lantern rings (10) to change in the width direction, so that the supporting of the fiber web when the width of the fiber web is changed is ensured.

Images