CN216473628U - Novel non-woven fabric carding machine - Google Patents

Abstract

The utility model discloses a novel non-woven fabric carding machine which comprises a wool feeding mechanism, a pre-carding mechanism, a main carding mechanism and a stripping mechanism, wherein the mechanisms are sequentially connected and installed. The main carding mechanism comprises a large cylinder and an upper doffer and a lower doffer which are positioned on the front side of the large cylinder, wherein a messy roller and a leveling roller are sequentially arranged in front of the upper doffer and the lower doffer, the front of the leveling roller is connected with a stripping roller, and a brush roller is arranged above the stripping roller. The pre-carding mechanism comprises a licker-in, a breast cylinder, a working roll and a wool stripping roll group. An adjustable conveying curtain is connected to an outlet in front of the stripping mechanism and is divided into an upper conveying curtain and a lower conveying curtain, the lower conveying curtain is in an inclined state with a high front part and a low back part, and an inclination angle change adjusting device is arranged on the lower conveying curtain; the upper conveying curtain is connected with the lower conveying curtain through the adjusting sliding roller group. The utility model is beneficial to improving the quality of the finished product of the prepared fleece, reducing the workload of single stripping and carding elements, providing guarantee for increasing the running speed of the carding machine and improving the working efficiency.

Description

Novel non-woven fabric carding machine

Technical Field

The utility model relates to the technical field of carding machines, in particular to a novel non-woven fabric carding machine.

Background

With the progress of textile industry, products gradually develop to a high-grade direction, and the carding machine is required to be used for carding, and then the lower machine fleece and wool tops are required to be even and flat. The non-woven fabric carding machine is mainly formed by sequentially connecting a wool feeding mechanism, a pre-carding mechanism, a main carding mechanism, a stripping mechanism and the like, wherein the main carding mechanism mainly comprises a large cylinder and a doffer. At present, a large cylinder of a non-woven fabric carding machine is only provided with one doffer, a fiber web made of the carding structure generally has the defects of uneven wool web and poor quality, and the carding machine is low in running speed and working efficiency and cannot meet the increasing practical requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art and provide a novel non-woven fabric carding machine.

In order to solve the technical problems, the utility model adopts the technical scheme that: a novel non-woven fabric carding machine comprises a wool feeding mechanism, a pre-carding mechanism, a main carding mechanism and a stripping mechanism, wherein the mechanisms are sequentially connected and mounted; the main carding mechanism comprises a large cylinder, an upper doffer and a lower doffer which are positioned on the front side of the large cylinder, wherein a plurality of groups of working rollers and a plurality of groups of hair stripping rollers are arranged above the large cylinder, a messy roller and a leveling roller are sequentially arranged in front of the upper doffer and the lower doffer, the doffer and the leveling roller rotate along the anticlockwise direction, and the messy roller rotates clockwise; a stripping roller is connected in front of the leveling roller, and a brush roller is arranged above the stripping roller; the pre-carding mechanism comprises a licker-in roller, a chest cylinder, two groups of working rollers and a hair peeling roller group, wherein the two groups of working rollers and the hair peeling roller group are arranged above the chest cylinder, the licker-in roller is positioned at the rear part of the chest cylinder, the rear part of the licker-in roller is connected with a feeding roller group, and the chest cylinder is connected with a large cylinder through a transfer roller. An adjustable conveying curtain is connected to an outlet in front of the stripping mechanism and is divided into an upper conveying curtain and a lower conveying curtain, the lower conveying curtain is in an inclined state with a high front part and a low back part, an inclination angle change adjusting device is arranged, the inclination angle change adjusting device comprises a vertical support adjusting frame and a sliding pair assembly, and the upper conveying curtain is connected with the lower conveying curtain through an adjusting sliding roller set; the rear end of the lower conveying curtain support is hinged to the lower side of the lower outlet through a rotating shaft, and the lower conveying curtain support and the vertical supporting and adjusting frame are connected and adjusted through a sliding pair assembly; the adjusting sliding roller group comprises a driving sliding roller, a driven sliding roller, an upper sliding roller and a lower sliding roller, the driving sliding roller, the upper sliding roller and the lower sliding roller are installed on the wallboards on the two sides of the rack through bearings with seats, the driving sliding roller is located below the upper leveling roller, the upper sliding roller is located on the lower side of the upper outlet, the lower sliding roller is located below the outer side of the upper outlet, the driven sliding roller is fixed on the lower conveying curtain support through a sliding roller seat, the upper conveying curtain is sequentially wound around the driving sliding roller, the upper sliding roller, the driven sliding roller and the lower sliding roller, and an adjusting bolt is installed between a driving sliding roller fixing seat and a wallboard.

Furthermore, the wool feeding mechanism adopts a positive displacement vibration wool feeder and comprises a flat curtain, an inclined curtain and a volume box, wherein a wool equalizing roller is arranged above the rear part of the inclined curtain, a wool beating roller is arranged above the front part of the inclined curtain, the wool beating roller is positioned above the volume box, a conveying flat curtain is arranged below the volume box, and the conveying flat curtain is connected with a feeding roller group positioned in front of the conveying flat curtain; the roughening roller is provided with a plurality of sheet-shaped tooth wings, all the sheet-shaped tooth wings are evenly distributed on the circumference of the roller body of the roughening roller upwards, each sheet-shaped tooth wing extends in the axial direction of the roller body of the roughening roller, and teeth on each sheet-shaped tooth wing are spiral teeth.

Further, the housing cover plate above the main carding mechanism is arranged to be an electric opening structure and comprises a support main beam, electric telescopic rods and hinge structures, the support main beam is fixedly installed on a fixing seat above the housing, the cover plates on two sides of the support main beam are fixedly hinged to the support main beam through the hinge structures, the bases of the two groups of electric telescopic rods are fixedly installed on the corresponding sides of the upper end of the support main beam through hinged bases, and the telescopic ends of the electric telescopic rods are hinged to the opening and closing hanging lugs fixed to the upper side of the cover plate.

Furthermore, the vertical support adjusting frame is fixedly arranged on the machine body base, a vertical guide groove is formed in the upper part of the vertical support adjusting frame, and a sliding block in the sliding pair assembly is slidably arranged in the vertical guide groove; and a transverse sliding groove is formed in the lower conveying curtain support, and a sliding bolt penetrates through the transverse sliding groove to be fixedly connected with the sliding block.

Further, the front end of the lower conveying curtain support is provided with a U-shaped mounting groove, the conveying curtain roller is mounted in the U-shaped mounting groove through a bearing with a seat, and an adjustable bolt is mounted between the bearing with the seat and the lower conveying curtain support and can drive the conveying curtain roller to slide back and forth.

Furthermore, a dust grid adjusting part is arranged below the large cylinder and is positioned in an aluminum alloy cylinder leakage bottom arranged below the large cylinder, the aluminum alloy cylinder leakage bottom is provided with at least two aluminum alloy strip groups, a leakage bottom dust suction port is reserved between every two adjacent aluminum alloy strip groups, and an air suction type coarse cotton net cleaner is arranged at the leakage bottom dust suction port; each aluminum alloy strip group is formed by splicing at least two aluminum alloy strips.

Further, the feeding roller group, the large cylinder and the upper and lower doffers are respectively driven by different motors, the chest cylinder and the large cylinder are driven by a driving belt, and the messy roller, the leveling roller and the stripping roller are driven by the driving belt.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the large cylinder is provided with two doffers, and the chest cylinder is provided with two pairs of working rollers and the wool stripping rollers, so that the quality of a finished product of a prepared wool net can be effectively improved, the workload of a single wool stripping and carding element is reduced, and the guarantee is provided for increasing the running speed of the carding machine; the disordered roller and the leveling roller are arranged in front of the doffer in sequence, so that the quality of the finished product of the prepared woolen web is further improved. In addition, the technical mode adopted by the roughening roller in the roughening mechanism enables the roughening roller to generate whirlwind with small air volume around each tooth because the teeth on each flaky tooth wing are spiral teeth in the rotating process, and fiber raw materials on the inclined curtain and abutting against a station can be smoothly and uniformly separated and peeled off by utilizing the striking of each tooth in cooperation with the separation of the whirlwind generated by the striking of each tooth, so that the operation speed and the working efficiency are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic illustration of the position of the various sets of rollers of the carding section of the present invention;

FIG. 3 is a schematic view of the construction of an adjustable delivery curtain of the present invention;

FIG. 4 is a schematic view of the stripping mechanism of the present invention;

FIG. 5 is a right side view of the structure of FIG. 4;

FIG. 6 is a cross-sectional view of a stripping roller in the stripping mechanism;

FIG. 7 is a cross-sectional view of a brush roller in the peeling mechanism;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

wherein: the direction of the arrows in fig. 2 represents the direction of travel of the various rolls during carding;

1. the device comprises a wool feeding mechanism 2, a pre-carding mechanism 3, a main carding mechanism 4, a stripping mechanism 5, an adjustable conveying curtain 6, a feeding roller set 7, a rack base 8, a motor 9, an upper outlet 10 and a lower outlet;

11. flat curtains, 12, inclined curtains, 13, hair equalizing rollers, 14, roughening rollers, 15, volume boxes, 16, conveying flat curtains, 21, chest cylinders, 22, licker-in rollers, 23, working rollers, 24, transfer rollers, 25, hair stripping rollers, 31, big cylinders, 32, upper doffers, 33, lower doffers, 34, cluttering rollers, 35, leveling rollers, 361, fixing seats, 362, supporting main beams, 363, electric telescopic rods, 364, hinged seats, 365, hinge structures, 366, opening and closing hangers, 37, hair stripping rollers, 38, working rollers, 41, stripping rollers, 42, brush rollers, 501, lower conveying curtains, 502, upper conveying curtains, 503, lower conveying curtain brackets, 504, vertical supporting adjusting brackets, 505, vertical guide slots, 506, sliders, 507, sliding bolts, 508, adjusting nuts, 509, transverse chutes, 510, rotating shafts, 511, conveying curtains, 512, U-shaped curtains, mounting grooves, 513, bearing seats, 514, adjustable bolts, 515. the device comprises a driving sliding roller 516, a driven sliding roller 517, an upper sliding roller 518, a lower sliding roller 519, a sliding roller seat 520, a driving sliding roller fixed seat 521 and an adjusting bolt.

Detailed Description

It should be noted that in the description of the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only terms of relationships determined for convenience in describing structural relationships of the respective components of the present invention, and do not particularly indicate that any component of the present invention must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings:

as shown in figure 1, the novel non-woven fabric carding machine comprises a wool feeding mechanism 1, a pre-carding mechanism 2, a main carding mechanism 3 and a stripping mechanism 4, wherein the mechanisms are sequentially connected and installed.

The wool feeding mechanism 1 adopts a positive displacement vibration wool feeding machine and comprises a flat curtain 11, an inclined curtain 12 and a volume box 15, wherein a wool equalizing roller 13 is arranged above the rear part of the inclined curtain 12, a wool beating roller 14 is arranged above the front part of the inclined curtain, the wool beating roller 14 is positioned above the volume box 15, a conveying flat curtain 16 is arranged below the volume box 15, and the conveying flat curtain 16 is connected with a feeding roller group 6 positioned in front of the conveying flat curtain. The roughening roller 14 is provided with a plurality of sheet-shaped tooth wings, all the sheet-shaped tooth wings are uniformly distributed in the circumferential direction of the roller body of the roughening roller 14, each sheet-shaped tooth wing extends in the axial direction of the roller body of the roughening roller 14, and teeth on each sheet-shaped tooth wing are spiral teeth; the technical scheme is adopted by the roughening roller 14, so that in the rotating process of the roughening roller 14, because the teeth on the flaky tooth wings are spiral teeth, whirlwind with small air volume can be generated around each tooth, and the striking of each tooth is utilized to be cooperated with the separation of the whirlwind generated by the striking of each tooth, so that the fiber raw materials on the inclined curtain 12, which are abutted to the station, can be smoothly and uniformly separated and peeled.

Referring to fig. 2, the main carding mechanism 3 includes a large cylinder 31, and an upper doffer 32 and a lower doffer 33 located at the front side thereof, five groups of working rollers and hair peeling roller groups are arranged above the large cylinder 31, and are equidistantly arranged along the circumferential direction of the large cylinder 31, and each of the working rollers and the hair peeling roller groups includes a working roller 38 and a hair peeling roller 37; a disordered roller 34 and a leveling roller 35 are sequentially arranged in front of the upper doffer 32 and the lower doffer 33, the doffers and the leveling roller 35 rotate along the anticlockwise direction, and the disordered roller 34 rotates clockwise; the front of the leveling roller 35 is connected with the stripping mechanism 4, a stripping roller 41 is arranged, a brush roller 42 is arranged above the stripping roller 41, and the stripping roller 41 and the brush roller 42 are structurally shown in fig. 4-8. The pre-carding mechanism 2 comprises a licker-in 22, a chest cylinder 21 and two groups of working rollers and a hair peeling roller group which are arranged above the chest cylinder 21, wherein each working roller and hair peeling roller group comprises a working roller 23 and a hair peeling roller 25; the licker-in 22 is positioned behind the chest cylinder 21, the back of the licker-in 22 is connected with the feeding roller group 6, the feeding roller group 6 comprises two groups of upper and lower feeding rollers 61 and a cleaning roller 62, and is responsible for conveying the fiber raw material to the pre-carding mechanism 2 connected with the feeding roller group; the breast cylinder 21 is engaged with the large cylinder 31 by the transfer roller 24. The feeding roller group 6, the large cylinder 31 and the upper doffer and the lower doffer are respectively driven by different motors 8 to operate, the chest cylinder 21 and the large cylinder 31 are driven by a transmission belt, the disorder roller 34, the leveling roller 35 and the stripping roller 41 are driven by the upper doffer and the lower doffer by the transmission belt, and the operation direction of each roller group is shown by arrows in figure 2 in the operation process so as to ensure the completion of the whole carding process, increase the operation speed of the carding machine and ensure the quality of the finished product of the prepared woolen web.

An adjustable conveying curtain 5 is connected to an outlet in front of the stripping mechanism 4, and as shown in fig. 3, the adjustable conveying curtain 5 is divided into an upper conveying curtain 502 and a lower conveying curtain 501, which correspond to two output lines formed by two doffers and are correspondingly arranged below an upper outlet 9 and a lower outlet 10; the lower conveying curtain 501 is in an inclined state with a high front part and a low back part, and is provided with an inclination angle change adjusting device, the inclination angle change adjusting device comprises a vertical support adjusting frame 504 and a sliding pair assembly, and the upper conveying curtain 502 is connected with the lower conveying curtain 501 through an adjusting sliding roller group. The rear end of the lower conveying curtain bracket 503 is pinned below the lower outlet 10 through a rotating shaft 510 and connected with the lower outlet; the front end of the lower conveying curtain bracket 503 is provided with a U-shaped mounting groove 512, a conveying curtain roller 511 is mounted in the U-shaped mounting groove 512 through a bearing with a seat, and the lower conveying curtain 501 is mounted around a rotating shaft 510 and the conveying curtain roller 511; an adjustable bolt 514 is arranged between a bearing seat 513 with a bearing seat and the lower conveying curtain bracket 503, and can drive the conveying curtain roller 511 to slide back and forth along the U-shaped mounting groove 512, so that the tension of the lower conveying curtain 501 can be adjusted in real time; the front of the lower curtain carrier 503 is also provided with a lateral chute 509. The vertical supporting adjusting frame 504 is fixedly installed on the rack base 7 through bolts, a vertical guide groove 505 is formed in the upper portion of the vertical supporting adjusting frame, the lower conveying curtain support 503 and the vertical supporting adjusting frame 504 are connected and adjusted through the sliding pair assembly, a sliding block 506 in the sliding pair assembly is slidably installed in the vertical guide groove 505, an adjusting nut 508 is installed on the lower side of the sliding pair assembly to control the sliding block 506 to slide up and down, a sliding bolt 507 in the sliding pair assembly penetrates through a transverse sliding groove 509 to be fixedly connected with the sliding block 506 and is matched with the sliding block 506, and therefore the change of the inclination angle of the lower conveying curtain 501 is completed. The adjusting sliding roller group comprises a driving sliding roller 515, a driven sliding roller 516, an upper sliding roller 517 and a lower sliding roller 518, two ends of the driving sliding roller 515, the upper sliding roller 517 and the lower sliding roller 518 are fixedly arranged on wall plates on two sides of the rack through bearings with seats and are parallel to each other, the driving sliding roller 515 is positioned below the upper leveling roller, the upper sliding roller 517 is positioned below the upper outlet 9, and the lower sliding roller 518 is positioned below the outer side of the upper outlet 9; the driven sliding roller 516 is fixedly arranged on the lower conveying curtain bracket 503 through a sliding roller seat 519, the upper conveying curtain 502 is sequentially arranged around the driving sliding roller 515, the upper sliding roller 517, the driven sliding roller 516 and the lower sliding roller 518, and the upper sliding roller 517 and the lower sliding roller 518 play a role in supporting and driving; an adjusting bolt 521 is installed between the driving roller fixing seat 520 and the side rib plate of the wall plate, and is used for adjusting the tension of the upper conveying curtain 502 in real time according to the inclination angle of the lower conveying curtain 501.

As a further optimized technical solution of the present invention, the cover plate above the main carding mechanism 3 is an electric opening structure, and includes a supporting main beam 362, electric telescopic rods 363, and a hinge structure 365, the supporting main beam 362 is fixedly mounted on a fixing seat 361 above the cover through bolts, the cover plates on both sides of the supporting main beam 362 are fixedly hinged to the supporting main beam 362 through the hinge structure 365, the bases of the two groups of electric telescopic rods 363 are fixedly mounted on the corresponding sides of the upper ends of the supporting main beams 362 through hinge bases 364, and the telescopic ends thereof are hinged to opening and closing lugs 366 fixed on the upper side surfaces of the cover plates. The electric telescopic rod 363 drives the cover plate to open and close, so that the detection and maintenance work of the machine body can be carried out by an operator more conveniently.

Furthermore, a dust grid adjusting component is arranged below the large cylinder 31 and is positioned in an aluminum alloy cylinder leakage bottom arranged below the large cylinder, the aluminum alloy cylinder leakage bottom is provided with at least two aluminum alloy strip groups, a leakage bottom dust suction port is reserved between every two adjacent aluminum alloy strip groups, and an air suction type coarse cotton net cleaner is arranged at the leakage bottom dust suction port; each aluminum alloy strip group is formed by splicing at least two aluminum alloy strips.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention, and the present invention is not limited to the above-mentioned examples, and those skilled in the art should also make changes, modifications, additions or substitutions within the spirit and scope of the present invention.

Claims (7)

1. A novel non-woven fabric carding machine is characterized in that: the carding machine comprises a wool feeding mechanism, a pre-carding mechanism, a main carding mechanism and a stripping mechanism, wherein the mechanisms are sequentially connected and mounted; the main carding mechanism comprises a large cylinder, an upper doffer and a lower doffer which are positioned on the front side of the large cylinder, wherein a plurality of groups of working rollers and a plurality of groups of hair stripping rollers are arranged above the large cylinder, a messy roller and a leveling roller are sequentially arranged in front of the upper doffer and the lower doffer, the doffer and the leveling roller rotate along the anticlockwise direction, and the messy roller rotates clockwise; a stripping roller is connected in front of the leveling roller, and a brush roller is arranged above the stripping roller; the pre-carding mechanism comprises a licker-in roller, a chest cylinder, two groups of working rollers and a hair peeling roller group, wherein the two groups of working rollers and the hair peeling roller group are arranged above the chest cylinder; an adjustable conveying curtain is connected to an outlet in front of the stripping mechanism and is divided into an upper conveying curtain and a lower conveying curtain, the lower conveying curtain is in an inclined state with a high front part and a low back part, an inclination angle change adjusting device is arranged, the inclination angle change adjusting device comprises a vertical support adjusting frame and a sliding pair assembly, and the upper conveying curtain is connected with the lower conveying curtain through an adjusting sliding roller set; the rear end of the lower conveying curtain support is hinged to the lower side of the lower outlet through a rotating shaft, and the lower conveying curtain support and the vertical supporting and adjusting frame are connected and adjusted through a sliding pair assembly; the adjusting sliding roller group comprises a driving sliding roller, a driven sliding roller, an upper sliding roller and a lower sliding roller, the driving sliding roller, the upper sliding roller and the lower sliding roller are installed on the wallboards on the two sides of the rack through bearings with seats, the driving sliding roller is located below the upper leveling roller, the upper sliding roller is located on the lower side of the upper outlet, the lower sliding roller is located below the outer side of the upper outlet, the driven sliding roller is fixed on the lower conveying curtain support through a sliding roller seat, the upper conveying curtain is sequentially wound around the driving sliding roller, the upper sliding roller, the driven sliding roller and the lower sliding roller, and an adjusting bolt is installed between a driving sliding roller fixing seat and a wallboard.

2. A novel non-woven carding machine according to claim 1, characterised in that: the wool feeding mechanism adopts a positive displacement vibration wool feeder and comprises a flat curtain, an inclined curtain and a volume box, wherein a wool equalizing roller is arranged above the rear part of the inclined curtain, a wool beating roller is arranged above the front part of the inclined curtain, the wool beating roller is positioned above the volume box, a conveying flat curtain is arranged below the volume box, and the conveying flat curtain is connected with a feeding roller group positioned in front of the conveying flat curtain; the roughening roller is provided with a plurality of sheet-shaped tooth wings, all the sheet-shaped tooth wings are evenly distributed on the circumference of the roller body of the roughening roller upwards, each sheet-shaped tooth wing extends in the axial direction of the roller body of the roughening roller, and teeth on each sheet-shaped tooth wing are spiral teeth.

3. A novel non-woven carding machine according to claim 1, characterised in that: the cover shell cover plate above the main carding mechanism is arranged to be an electric opening structure and comprises a support main beam, electric telescopic rods and hinge structures, the support main beam is fixedly installed on a fixing seat above the cover shell, the cover plates on two sides of the support main beam are fixedly hinged to the support main beam through the hinge structures, bases of the two groups of electric telescopic rods are fixedly installed on the corresponding sides of the upper end of the support main beam through hinged bases, and the telescopic ends of the electric telescopic rods are hinged to opening and closing hanging lugs fixed on the upper side of the cover plate.

4. A novel non-woven carding machine according to claim 1, characterised in that: the vertical supporting and adjusting frame is fixedly arranged on the machine body base, a vertical guide groove is formed in the upper part of the vertical supporting and adjusting frame, and a sliding block in the sliding pair assembly is slidably arranged in the vertical guide groove; and a transverse sliding groove is formed in the lower conveying curtain support, and a sliding bolt penetrates through the transverse sliding groove to be fixedly connected with the sliding block.

5. A novel non-woven carding machine according to claim 4, characterised in that: the front end of the lower conveying curtain support is provided with a U-shaped mounting groove, the conveying curtain roller is mounted in the U-shaped mounting groove through a bearing with a seat, and an adjustable bolt is mounted between the bearing with the seat and the lower conveying curtain support and can drive the conveying curtain roller to slide back and forth.

6. A novel non-woven carding machine according to claim 1, characterised in that: a dust grid adjusting part is arranged below the large cylinder and is positioned in an aluminum alloy cylinder leakage bottom arranged below the large cylinder, the aluminum alloy cylinder leakage bottom is provided with at least two aluminum alloy strip groups, a leakage bottom dust suction port is reserved between every two adjacent aluminum alloy strip groups, and an air suction type coarse mesh cleaner is arranged at the leakage bottom dust suction port; each aluminum alloy strip group is formed by splicing at least two aluminum alloy strips.

7. A novel non-woven carding machine according to claim 1, characterised in that: the feeding roller set, the large cylinder and the upper and lower doffers are respectively driven by different motors, the chest cylinder and the large cylinder are driven by a driving belt, and the messy rollers, the leveling rollers and the stripping rollers and the doffers are driven by the driving belt.

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