CN114411292B - Movable receiving curtain for cross lapping - Google Patents
Movable receiving curtain for cross lapping Download PDFInfo
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- CN114411292B CN114411292B CN202111549621.1A CN202111549621A CN114411292B CN 114411292 B CN114411292 B CN 114411292B CN 202111549621 A CN202111549621 A CN 202111549621A CN 114411292 B CN114411292 B CN 114411292B
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- Prior art keywords
- curtain
- conveying
- net
- lapping
- receiving
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G25/00—Lap-forming devices not integral with machines specified above
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres
Abstract
The invention relates to a movable receiving curtain for cross lapping, which consists of a conveying roller, a lapping curtain, a first conveying curtain, a second conveying curtain, a third conveying curtain, a net conveying curtain, a servo motor and a transmission assembly, wherein when a lapping trolley enters an acceleration (deceleration) stage, the lapping curtain can perform deceleration (acceleration) movement in opposite directions in a lapping direction, so that the overfeeding phenomenon at two ends of a fiber net is overcome; when the fiber net is in uniform motion, the net receiving curtain can move at a uniform speed in the same direction in the net laying direction, and the running speed is lower than that of the net laying trolley, so that overfeeding phenomenon occurs to the fiber net at the uniform speed stage, and a fiber net aggregate with thin two sides and thick middle is formed. Compared with the prior art, the invention not only can avoid overfeeding at two ends in the cross lapping process, but also overcomes the problem of transverse shrinkage of fiber web aggregates caused by subsequent drafting; meanwhile, the movable receiving net curtain is controlled by the console, the parameter setting is simple, the cost is low, and the movable receiving net curtain is suitable for most production enterprises.
Description
Technical Field
The invention relates to the field of textile equipment, in particular to a movable receiving curtain for cross lapping.
Background
The cross lapping machine is one of the main equipments for preparing the warming flocculus, and can be used for lapping fiber web into fiber web aggregate with certain width and thickness, and then obtaining the warming flocculus after the procedures of drafting, glue spraying, baking and the like. However, in the periodic high-speed lapping process, under the condition that the lapping speed of the lapping trolley is not changed, the lapping speed has deceleration and acceleration processes (namely a reversing process), so that the overfeeding phenomenon of the fiber web occurs, and the two sides of the fiber web aggregate are thick and the middle of the fiber web aggregate is thin; meanwhile, the fiber web assembly can transversely contract under stress in the drafting process, and the phenomena of thickness at two sides and thinness in the middle of the fiber web assembly are aggravated.
In view of the above problems, there have been studies conducted by researchers in this field. Patent US 08/397648 discloses an Accumulator net storage device, when a net laying trolley enters a deceleration process, a vertical curtain in the net storage device moves downwards to store the fiber net input by a carding machine; when the lapping trolley finishes reversing and accelerates, the vertical curtain moves upwards to recover the supply of the thin fiber net, and the consistency of the thickness of the fiber net aggregate in the width direction is ensured. However, this method cannot overcome the phenomena of longitudinal elongation and transverse shrinkage in the subsequent drawing process. Patent ZL201120524879.1 utilizes a Profiling shaping system to construct a drafting leveling device, which can set a Profiling curve at any time through a human-computer interface, and can adjust the output fiber web to have a form with a thick middle part and thin two sides so as to compensate the negative effects caused during drafting treatment. However, the system does not completely solve the overfeeding problem, and the technology is expensive, so that the system cannot be applied to most enterprises. In patent ZL201120524879.1, a net pressing roller is arranged at the net combining position of an upper net outlet curtain and a lower net outlet curtain of a carding machine, so that the combination of two layers of cotton nets is smoother; meanwhile, a first groove roller and a second groove roller which are mutually meshed are arranged at the position of a carding outlet of the carding machine and above the conveying curtain, and the speed of the first groove roller is smaller than that of the second groove roller, so that the fiber webs laid on two sides of the output curtain are thinned, the lapping effect with thin two sides and thick middle is finally obtained, and the transverse shrinkage caused by drafting is overcome. Because the thickness of the single-layer fiber web formed by laying is extremely thin, the single-layer fiber web is easy to break when stretched, and the continuous production process of the thermal insulating flocculus is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a movable receiving curtain for cross lapping, which solves the problems in the prior art that: the cross lapping machine has overfeeding phenomenon in the periodic high-speed lapping process, and transverse shrinkage can be caused in the drawing process, so that the phenomena of thickness at two sides and thinness in the middle of a fiber web aggregate are aggravated.
The applicant has carried out an analysis of the comparative documents in the background art, and based on the above analysis, the core of the present technical solution is to design a new cross lapper suitable for industrial production, which solves both the overfeeding problem caused by lapping and the transverse shrinkage problem caused by drafting.
The purpose of the invention can be realized by the following technical scheme:
the invention aims to protect a movable receiving curtain for cross lapping, which comprises a net receiving curtain, a first conveying curtain, a second conveying curtain, a third conveying curtain and a net conveying curtain which are sequentially arranged along the net conveying direction;
the receiving curtain also comprises conveying rollers which are respectively matched with the net receiving curtain, the first conveying curtain, the second conveying curtain, the third conveying curtain and the net conveying curtain;
when the lapping trolley is in an acceleration/deceleration stage in the process of periodically lapping the fiber net on the receiving curtain, the net-receiving curtains perform deceleration/acceleration motion in opposite directions in the lapping direction, when the lapping trolley is in a uniform motion stage, the net-receiving curtains perform uniform motion in the same direction in the lapping direction, and the running linear speed is less than that of the lapping trolley, so that overfeeding of the fiber net in the uniform motion stage occurs, and a fiber net assembly with thin two sides and thick middle is formed;
the first conveying curtain, the second conveying curtain and the third conveying curtain move continuously along with the web-receiving curtain, and the conveying track is changed by adjusting the lateral pulling of the web-receiving curtain, the first conveying curtain, the second conveying curtain and the third conveying curtain, for example, the conveying track is a curve or returns to a straight line, so that the speed of the web-receiving curtain, the first conveying curtain, the second conveying curtain, the third conveying curtain and the web-conveying curtain for conveying the fiber web assembly is kept consistent.
Furthermore, the net receiving curtain, the first conveying curtain, the second conveying curtain and the third conveying curtain are all composed of two conveying rollers and one belt curtain, and the two conveying rollers are taken as a group, so that the belt curtain is driven to move in the net conveying direction.
Further, a transmission inner roller is arranged inside the conveying roller and can be kept fixed in a rotating state of the conveying roller.
Furthermore, the outer roller body of the conveying roller is driven by a motor, so that the rotating speed is adjusted.
Further, the outer roller body of the conveying roller is movably buckled on the transmission inner roller, so that the transmission inner roller can be kept fixed in a state that the outer roller body rotates.
Further, the movable receiving curtain for cross-lapping further comprises a lateral pulling device capable of laterally pulling the web-receiving curtain, the first conveying curtain, the second conveying curtain and the third conveying curtain.
Furthermore, the lateral pulling device comprises a servo motor, a transmission assembly and a lateral pulling piece, wherein the output end of the servo motor is connected with the input end of the transmission assembly, the output end of the transmission assembly is connected with the lateral pulling piece, and the lateral pulling piece is connected with the transmission inner roller, so that the lateral horizontal pulling of the first conveying curtain, the second conveying curtain and the third conveying curtain is realized.
As an implementation manner of the technical scheme, the lateral pulling member is a rigid rod, the transmission assembly is a lead screw assembly, the lead screw assembly includes a lead screw and a sliding block sleeved on the lead screw, one end of the rigid rod is connected to the sliding block, the other end of the rigid rod is connected to the transmission inner roller, the output end of the servo motor is connected to the lead screw through bevel gear transmission as another implementation manner of the technical scheme, the lateral pulling member is a belt, the transmission assembly is a speed reducer matched with the belt, the output end of the servo motor is connected to the input end of the speed reducer in transmission, the output end of the speed reducer is connected to the belt in transmission, and the belt is connected to the transmission inner roller in friction transmission.
Furthermore, be equipped with the pulley chamber along the axial in the roller in the transmission, it has the assembly pulley to move about spacing through four stoppers in the pulley chamber for every pulley in the assembly pulley only can carry out the rotation of wheel body, be equipped with the insection on the pulley, be equipped with on the belt can with the insection meshing on the pulley, the belt upper portion penetrates the pulley chamber from the clearance between pulley and the pulley intracavity wall along the length direction in pulley chamber to make the insection of belt upper portion with the insection meshing on the pulley, the belt lower part returns from the transmission inner roll outside simultaneously the output of reduction gear.
Compared with the prior art, the invention has the following technical advantages:
(1) When the mesh-laying trolley enters a speed reduction (acceleration) stage, the movable mesh-connecting curtain compensates for a path difference caused by the speed reduction process of the mesh-laying trolley, so that a fiber mesh is smoothly unfolded and tiled, and the overfeeding phenomenon caused by crossing mesh-laying two ends is overcome;
(2) When the lapping trolley enters the constant-speed stage, the movable net connecting curtain reduces the relative speed of the lapping trolley, so that the overfeeding phenomenon of the fiber net at the constant-speed stage is caused, a fiber net aggregate with thin two sides and thick middle is formed, and the problem of transverse contraction of the fiber net caused by drafting is solved;
(3) The movable receiving net curtain provided by the invention is controlled by the console, has simple parameter setting and low cost, and is suitable for most production enterprises. Meanwhile, when the movable receiving net curtain is used for overcoming the overfeeding problem and the transverse shrinkage caused by drafting, the self state of the fiber net is not damaged, the net breaking phenomenon is not caused, and the continuous production of the thermal insulating flocculus is facilitated.
Drawings
FIG. 1 is a schematic structural view of a cross lapper;
FIG. 2 is a schematic view of a movable web receiving curtain for cross lapping in the present embodiment;
fig. 3 is a schematic structural diagram of a driving device in the present technical solution;
FIG. 4 is a schematic cross-sectional view of the driving roller according to the present invention;
fig. 5 is a perspective structure schematic diagram of the driving roller in the technical scheme.
In the figure: 1-a lapping trolley; 2-a fiber web; 3-receiving a curtain; 31-a transfer roller; 311-belt curtain; 32-connecting the net curtain; 33-a first conveying curtain; 34-a second conveying curtain; 35-a third conveying curtain; 36-a net conveying curtain; 4-a servo motor; 5-a transmission assembly; 51-a transmission; 52-a conveyor belt; 53-pulley block; 531-pulleys; 322-pulley cavity; 323-a limiting block; 321-driving the inner roller.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments. In the technical scheme, the features such as the part model, the material name, the connection structure, the control method, the algorithm and the like which are not explicitly described are all regarded as common technical features disclosed in the prior art.
Example 1
The movable web receiving curtain of the present invention is shown in fig. 2, and is composed of a conveying roller 31, a web receiving curtain 32, a first conveying curtain 33, a second conveying curtain 34, a third conveying curtain 35, a web conveying curtain 36, a servo motor 4 and a transmission assembly 5. The lapping trolley 1 has three stages of acceleration, uniform speed and deceleration in the periodic lapping process of the fiber net 2, and when the lapping trolley enters the acceleration (deceleration) stage, the net receiving curtain 32 performs deceleration (acceleration) motion in the opposite direction in the lapping direction; when the net receiving curtain moves at a constant speed, the net receiving curtain 32 moves at a constant speed in the same direction in the lapping direction, and the running speed is lower than that of the lapping trolley 1; the first conveying curtain 33, the second conveying curtain 34 and the third conveying curtain 35 move continuously with the web-connecting curtain 32 at certain time intervals; the net conveying curtain 36 keeps a fixed state in the net laying direction; the web transport speeds of the web-receiving screen 32, the first conveying screen 33, the second conveying screen 34, the third conveying screen 35 and the web transport screen 36 are kept the same.
In practical implementation, the web receiving curtain 32, the first conveying curtain 33, the second conveying curtain 34 and the third conveying curtain 35 are composed of two conveying rollers 31 and one belt curtain 311, and the two conveying rollers 31 are taken as a group, so as to drive the belt curtain 311 to move in the web conveying direction.
In specific implementation, the transmission inner roller 321 is arranged inside the transmission roller 31, and the transmission inner roller 321 can be kept fixed in a state that the transmission roller 31 rotates. The outer roller body of the conveying roller 31 is driven by a motor, so that the rotating speed is adjusted. The outer roller body of the conveying roller 31 is movably buckled on the transmission inner roller 321, so that the transmission inner roller 321 can be kept fixed in a state that the outer roller body rotates.
In particular implementation, the removable receiving curtain for cross-lapping further comprises a lateral pulling device capable of laterally pulling the web-receiving curtain 32, the first conveying curtain 33, the second conveying curtain 34 and the third conveying curtain 35.
In specific implementation, the lateral pulling device comprises a servo motor 4, a transmission assembly 5 and a lateral pulling member, wherein an output end of the servo motor 4 is connected with an input end of the transmission assembly 5, an output end of the transmission assembly 5 is connected with the lateral pulling member, and the lateral pulling member is connected with the transmission inner roller 321, so that the lateral horizontal pulling of the first conveying curtain 33, the second conveying curtain 34 and the third conveying curtain 35 is realized.
The lateral pulling piece is a rigid rod, the transmission assembly is a screw rod assembly, the screw rod assembly comprises a screw rod and a sliding block sleeved on the screw rod, the sliding block is in threaded fit with the screw rod, the sliding block can move in and out when the screw rod rotates, the fixing seat is used for supporting the screw rod and further comprises a track rod arranged on the fixing seat, the surface of the track rod is smooth and penetrates through the sliding block, the track rod plays a role in auxiliary orientation in the displacement process of the sliding block, one end of the rigid rod is connected to the sliding block, the other end of the rigid rod is connected with the transmission inner roller 321, the output end of the servo motor 4 is connected with the screw rod through bevel gear transmission to serve as another implementation mode of the technical scheme, the lateral pulling piece is a belt, the transmission assembly is a speed reducer matched with the belt, the output end of the servo motor is connected with the input end of the speed reducer in a transmission mode, the output end of the speed reducer is connected with the belt in a transmission mode, and the belt is connected with the transmission inner roller in a friction type transmission mode.
Specifically, when the web receiving curtain 32, the first conveying curtain 33, the second conveying curtain 34 and the third conveying curtain 35 are laterally pulled, if the pulling amplitude of one side of the first conveying curtain 33 and the second conveying curtain 34 is increased, the lateral pulling amplitude of the third conveying curtain 35 is adjusted back and back, and is symmetrical to the first conveying curtain 33, and the principle is the same when the lateral pulling amplitude or the lateral direction is changed, so that the conveying track is stretched into a circular arc shape or returned into a straight line by adjusting, and the speed of conveying the fiber web aggregate by the web receiving curtain 32, the first conveying curtain 33, the second conveying curtain 34, the third conveying curtain 35 and the conveying curtain 36 is kept consistent.
Example 2
Different from embodiment 1, referring to fig. 3 to 5, the lateral pulling member is a belt 52, the transmission assembly 5 is a speed reducer matched with the belt 52, an output end of the servo motor 4 is in transmission connection with the speed reducer, an output end of the speed reducer is in friction transmission connection with the driving belt 52, and the belt 52 is in friction transmission connection with the driving inner roller 321.
During specific implementation, be equipped with pulley chamber 322 along the axial in the roller 321 in the transmission, it has assembly pulley 53 to move about spacing through four stoppers in the pulley chamber 322 for every pulley 531 in the assembly pulley can only carry out the rotation of wheel body, be equipped with the insection on the pulley 531, be equipped with on the belt 52 can with the insection of insection meshing on the pulley 531, the upper portion of belt 52 penetrates pulley chamber 322 from the clearance between pulley 531 and the pulley chamber 322 inner wall along the length direction of pulley chamber 322 to make the insection of belt 52 upper portion with insection meshing on the pulley 531, the partial portion of belt 52 returns from the transmission inner roller 321 outside simultaneously the output of reduction gear.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (6)
1. A movable receiving curtain for cross lapping is characterized in that the receiving curtain (3) comprises a net receiving curtain (32), a first conveying curtain (33), a second conveying curtain (34), a third conveying curtain (35) and a net conveying curtain (36) which are arranged in sequence along the net conveying direction;
the receiving curtain (3) also comprises conveying rollers (31) which are respectively matched with the net receiving curtain (32), the first conveying curtain (33), the second conveying curtain (34), the third conveying curtain (35) and the net conveying curtain (36);
when the lapping trolley (1) is in an acceleration/deceleration stage in the process of periodically lapping the fiber net (2) on the receiving curtain (3), the net receiving curtain (32) performs deceleration/acceleration motion in the opposite direction in the lapping direction to overcome the overfeeding phenomenon at two ends of the fiber net, when the lapping trolley (1) is in a uniform motion stage, the net receiving curtain (32) performs uniform motion in the same direction in the lapping direction, and the running linear speed is less than that of the lapping trolley (1), so that the overfeeding phenomenon occurs on the fiber net (2) in the uniform motion stage to form a fiber net assembly with thin two sides and thick middle;
the first conveying curtain (33), the second conveying curtain (34) and the third conveying curtain (35) move continuously along with the web-receiving curtain (32), and the conveying track is changed through the lateral pulling adjustment of the web-receiving curtain (32), the first conveying curtain (33), the second conveying curtain (34) and the third conveying curtain (35), so that the speeds of the web-receiving curtain (32), the first conveying curtain (33), the second conveying curtain (34), the third conveying curtain (35) and the conveying curtain (36) for conveying the fiber web aggregate are kept consistent;
a transmission inner roller (321) is arranged in the transmission roller (31), and the transmission inner roller (321) can be kept fixed in a rotating state of the transmission roller (31);
the outer roller bodies of the conveying rollers (31) are driven by a motor to realize the adjustment of the rotating speed;
the outer roller body of the conveying roller (31) is movably buckled on the transmission inner roller (321), so that the transmission inner roller (321) can be kept fixed in a rotating state of the outer roller body;
the moveable receiving curtain for cross-lapping further comprises a lateral pulling device capable of laterally pulling the web-receiving curtain (32), the first conveying curtain (33), the second conveying curtain (34) and the third conveying curtain (35).
2. A removable receiving curtain for cross-lapping according to claim 1, wherein the web receiving curtain (32), the first conveying curtain (33), the second conveying curtain (34), and the third conveying curtain (35) are each composed of two conveying rollers (31) and a belt curtain (311), and the two conveying rollers (31) are used as a set to drive the belt curtain (311) to move in the web conveying direction.
3. A removable receiving curtain for cross-lapping according to claim 1 wherein the lateral pulling means comprises a servo motor (4), a transmission assembly (5) and a lateral pulling member, the output of the servo motor (4) being connected to the input of the transmission assembly (5), the output of the transmission assembly (5) being connected to the lateral pulling member, the lateral pulling member being connected to the transmission inner roller (321) to effect lateral horizontal pulling of the web-receiving curtain (32), the first conveying curtain (33), the second conveying curtain (34) and the third conveying curtain (35).
4. The movable receiving curtain for cross lapping as claimed in claim 3, wherein the lateral pulling member is a rigid rod, the transmission assembly (5) is a lead screw assembly, the lead screw assembly comprises a lead screw and a sliding block sleeved on the lead screw, one end of the rigid rod is connected to the sliding block, the other end of the rigid rod is connected with the transmission inner roller (321), and the output end of the servo motor (4) is connected with the lead screw through bevel gear transmission.
5. A curtain as claimed in claim 3, characterised in that the lateral pulling element is a belt (52), the driving assembly (5) is a reducer matching the belt (52), the output of the servomotor (4) is in driving connection with the input of the reducer, the output of the reducer is in driving connection with the driving of the belt (52), and the belt (52) is in frictional driving connection with the driving inner roller (321).
6. The movable receiving curtain for cross lapping as claimed in claim 5, wherein a pulley cavity (322) is axially arranged in the transmission inner roller (321), a pulley block (53) is movably limited in the pulley cavity (322) through four limit blocks, so that each pulley (531) in the pulley block can only rotate, the pulley (531) is provided with teeth, the belt (52) is provided with teeth capable of meshing with the teeth on the pulley (531), the upper part of the belt (52) penetrates into the pulley cavity (322) from a gap between the pulley (531) and the inner wall of the pulley cavity (322) along the length direction of the pulley cavity (322), and the teeth on the upper part of the belt (52) are meshed with the teeth on the pulley (531), and simultaneously the lower part of the belt (52) returns to the output end of the speed reducer from the outside of the transmission inner roller (321).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111549621.1A CN114411292B (en) | 2021-12-17 | 2021-12-17 | Movable receiving curtain for cross lapping |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111549621.1A CN114411292B (en) | 2021-12-17 | 2021-12-17 | Movable receiving curtain for cross lapping |
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| CN114411292A CN114411292A (en) | 2022-04-29 |
| CN114411292B true CN114411292B (en) | 2023-03-31 |
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| CN202111549621.1A Active CN114411292B (en) | 2021-12-17 | 2021-12-17 | Movable receiving curtain for cross lapping |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2663472Y (en) * | 2003-12-01 | 2004-12-15 | 江苏迎阳无纺机械有限公司 | Mesh placing mechanism of mesh placement machine |
| DE502006004974D1 (en) * | 2006-05-09 | 2009-11-12 | Dilo Kg Maschf Oskar | Steilarmvliesleger |
| CN107354591B (en) * | 2017-06-29 | 2020-03-17 | 青岛大学 | Wet-laid mechanism for preparing filament non-woven fabric based on wet spinning technology |
| CN108301123A (en) * | 2018-03-29 | 2018-07-20 | 厦门当盛新材料有限公司 | Parallel lapping machine, lapping machine and the manufacturing method of non-woven fabrics are formed for web |
| EP3617353A1 (en) * | 2018-08-29 | 2020-03-04 | Oskar Dilo Maschinenfabrik KG | Delivery transport belt of a lap-forming device |
| CN110438663A (en) * | 2019-07-31 | 2019-11-12 | 苏州鸿源特种纤维制品有限公司 | A kind of cross lapping machine and its production technology for non-woven cloth |
| CN211814865U (en) * | 2019-11-04 | 2020-10-30 | 仪征金泰化纤无纺布有限公司 | Lapping mechanism of lapping machine |
| CN211645584U (en) * | 2019-11-13 | 2020-10-09 | 常熟万龙机械有限公司 | Lapping machine |
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