EP3030705A1 - Device and method for producing a net-like thread arrangement, and net-like thread arrangement - Google Patents
Device and method for producing a net-like thread arrangement, and net-like thread arrangementInfo
- Publication number
- EP3030705A1 EP3030705A1 EP14752803.8A EP14752803A EP3030705A1 EP 3030705 A1 EP3030705 A1 EP 3030705A1 EP 14752803 A EP14752803 A EP 14752803A EP 3030705 A1 EP3030705 A1 EP 3030705A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transverse
- thread
- endless belt
- auxiliary device
- transverse thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 claims description 16
- 238000000151 deposition Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 3
- 238000000429 assembly Methods 0.000 description 10
- 230000000712 assembly Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 241000237858 Gastropoda Species 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
- D04H3/045—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles for net manufacturing
Definitions
- the invention relates to a device and a method for producing reticular scrims, and more particularly to a device according to the preamble of claim 1, as e.g. from DE 23 62 793 B2 or US 3 422 511 A is known.
- the invention relates to a net-like scrim.
- FIGS. 4 to 6 Essential parts of such a device known from the prior art are shown schematically in FIGS. 4 to 6.
- Fig. 4 shows a perspective view of the use of a known
- FIG. 5 shows a detail enlargement of FIG. 4, and FIG. 6 shows again a detail enlargement of FIG. 5.
- FIGS. 4-6 To facilitate the directional designations, a right-angled x-y-z coordinate system is introduced in FIGS. 4-6.
- Fig. 4 is a schematic overall view of such a known device 10 for producing net-like scrim with the complete rotor arm 5 and one each left and right of the thread tray level (xv-plane) mounted Querfadenablageschnecke 1 shown. In Fig. 5 and 6, only one Querfadenablageschnecke 1 can be seen on the left edge of the picture.
- the transverse thread 2 is introduced by the cross-threading 4 in the turns of Querfadenablageschnecken 1.
- the transverse thread 2 is placed in transverse thread loops 2 'around the turns of the Querfadenablageschnecken 1.
- Fig. 5 and 6 this is shown in detail for the cross-thread laying screw shown in Fig. 4 on the left edge of the picture in respective detail enlargements.
- the Querfadenablageschnecken 1 and the rotor arm 5 rotate about their axes extending substantially in the longitudinal direction (x-direction) axes of rotation in one another and on the advance of the longitudinal threads 3 concerted way.
- the rotational speeds of the Querfadenablageschnecken 1 and the rotor arm 5 are identical.
- the transverse thread 2 introduced by the cross-threading 4 into the turns of the Querfadenablageschnecken 1 is transported by the Querfadenablageschnecke 1 due to their rotation to the free end la of the Querfadenablageschnecke 1 out.
- the Querfadenablageschnecke 1 shown on the right in Fig. 4 the Querfadenablageschnecke 1 in the transverse direction ( ⁇ -direction) of the yarn layer opposite, takes after a 180 ° rotation of the rotor arm 5 guided by the cross-thread 4 Cross thread 2 in the same manner as that shown on the left edge of the image in Fig. 5
- the longitudinal threads 3 need not all be deposited in the same plane on or under (in the z-direction) of the meander-shaped transverse thread 2. Rather, arrangements can also be selected, as shown by way of example in FIG. 6, in which a part 3a of the longitudinal threads below the plane of the transverse thread 2 and another part 3b of the longitudinal threads above the plane of the transverse thread 2 are deposited.
- the feed directions and speeds of the individual longitudinal threads 3a, 3b and the rotational speeds of the Querfadenablageschnecken 1 and the rotor arm 5 are carefully matched to each other.
- a rotor arm 5 shown in FIGS. 5 and 6 it is also possible to use more than one rotor arm.
- two, three,... N rotor arms can be arranged in a star shape in angular increments matched to their total number about a common axis of rotation (not shown). That is, instead of a rotor arm, e.g. two rotor arms, which are arranged offset by 180 °, or three rotor arms, which are arranged offset by 120 °, or n rotor arms, which are arranged offset by 360 ° / n, can be provided.
- Querfadenablageschnecke (positioned on the right edge of the image in Fig. 4) is guided.
- Querfadenablageschnecke 1 detaching loop segment local contamination of the screw surface (in particular by persistent particle abrasion of the transverse thread 2 in continuous operation of the device 10, local inhomogeneities in the thread material with respect to the local thread thickness, the local thread density, variations in the composition of the thread material due to irregularities in the process of thread production, Etc.).
- the present invention has been devised in view of the above-described drawbacks of prior art devices for making reticular scrims.
- FIG. 1 is an overall view of a device according to the invention for producing homogeneous reticulated filament scrims in a perspective view;
- Fig. 2 is a partial section of Fig. 1; in a perspective rotated enlargement of Figure 2, the process of Querfadensch securedablage in a device according to the invention for producing reticulated scrim;
- FIG. 4 shows an overall view of a device known from the prior art for producing reticulated filament scrims in a perspective representation
- Fig. 5 is a partial section of Fig. 4; a detail enlargement of the device shown in Fig. 5 in the region of the free end of a Querfadenablageschnecke.
- Fig. 1 to 3 show an overall view of a device according to the invention for
- Fig. 3 shows an enlarged detail of Fig. 2, the perspective has been additionally rotated.
- the device 10 according to the invention shown in FIGS. 1 to 3 shows the following, compared to the device known from the prior art, shown in FIGS. 4 to 6
- Endless belts 30, 31, 40, 41 each guided by associated guide rollers.
- the endless belts are arranged in pairs above and below the yarn delivery level (x-y plane), as will be described in more detail below.
- FIG. 1 this is drawn in such a way that a corresponding endless belt 30 (31, 40, 41) is shown in each case for an endless belt 30 (31, 40, 41) and these two corresponding endless belts 30, 30 (31, 31 40, 40, 41, 41) on a vertical to the thread storage level and in the longitudinal direction (x-direction) extending xz-plane mirror each other can imagine.
- this type of mirror symmetry along the xz plane is not an essential feature of the device according to the invention, as will be apparent from the following description.
- the endless belts 30, 31, 40, 41 are made of abrasion-resistant, elastic and tear-resistant materials, and are e.g. made of rubber or elastic plastics.
- a first endless belt 30 in FIG. 1 will be considered in more detail by way of example.
- This first endless belt 30 is looped around the four associated guide rollers 301, 302, 303, 304 so that it is self-contained.
- the first endless belt 30 thereby biases a plane.
- the endless belt 30 is oriented so that it is arranged substantially parallel to the x-z plane.
- each of these three further endless belts 31, 40, 41 shown in FIG. 2 defines a plane substantially parallel to the x-z plane.
- an ensemble of an endless belt together with associated guide rollers is also referred to as an endless belt assembly.
- the first endless belt 30 above the Fadenablageebene (xy-plane) and an associated second endless belt 31 below the Fadenablageebene (xy plane) is arranged and aligned in the room or is alignable that these endless belts 30, 31 parallel to x ⁇ z Level are arranged or can be arranged.
- the first endless belt 30 and the second endless belt 31 can be positioned or brought in the horizontal direction (z-direction) at a distance such that they can force-fit a transverse thread loop 2 ' deposited at the free ends 1a of the transverse laying screws 1.
- the endless belts 30 and 31, on the one hand above and on the other hand below the yarn deposit level (xv plane) are mounted so that the aligned parallel to the x ⁇ z plane upper endless belt 30 a transverse thread loop 2 ' from above frictionally contacted and that the lower endless belt 31 oriented parallel to the xz-plane contacts the same transverse thread loop 2 'from below in a force-locking manner.
- This position is referred to below as the "working position" of the respective endless belt.
- the endless assemblies can be mounted from the outset in a permanent working position.
- those shown in Fig. 2 by way of example those shown in Fig. 2 by way of example
- pivotable endless assemblies may be provided in their respective working position.
- Swing mechanics may e.g. consist of a mechanical, possibly multi-articulated arm, to which the endless assembly is attached and pivotable with the pivot arm in space.
- Such pivoting mechanisms can each individually for a
- Endless band assembly may be provided. But it is also readily possible to provide complex pivoting mechanisms with more than one (possibly multi-articulated) pivot arm, which allow both the upper endless belt assembly, consisting of the
- Guide rollers 311, 312, 313, 314 simultaneously supported and coordinated with each other in space are movable to bring the endless belt assemblies each in their working position.
- the endless belt assemblies consisting of an endless belt (such as the endless belt 30) and associated guide rollers (eg 301, 302, 303, 304) by means of suitable
- Swing mechanisms in the (temporary) working position are movable, or whether they are stationary mounted in their respective (stationary) working position.
- an endless belt eg the endless belt 30 in FIG. 2 located above the yarn depositing plane (xy plane) and below the yarn depositing plane (xy plane) located endless belt (eg, the endless belt 31 in Fig. 2) frictionally a transverse thread loop 2 'can pinch between them.
- one endless belt e.g., endless belt 30
- endless belt 30 having exactly four associated guide rollers (301, 302, 303, 304)
- endless assemblies having a different number of guide rollers may be used.
- endless belt assemblies with only two guide rollers around which an endless belt is wound may be used.
- the number of guide rollers from one to the next endless belt assembly can also be varied, and not all endless assemblies need to have exactly the same number of guide rollers. Thus, it is not necessary to comply with all the symmetries shown in FIG. 1 between the individual endless assemblies.
- Each endless belt assembly is now designed so that the guide rollers are rotatably mounted and can drive the endless belt wound around them by their rotational movement.
- suitable mechanical drive means such as motors and
- Yarn tray level (xy plane) attached first endless belt 30 and a below the yarn deposit level (xy plane) mounted second endless belt 31 in their respective Working position, whether temporary or stationary, are so mounted that they include a located in the region of the free end la of Querfadenablageschnecke 1 but not yet detached from the Querfadenablageschnecke 1 transverse thread loop 2 ' just before the moment of detachment frictionally between them and by a coordinated
- each of the free end la of the Querfadenablageschnecke 1 between the upper endless belt 30 and the lower endless belt 31 recorded loop 2 ' substantially traction-free between the two endless belts 30, 31 included and further transported in the longitudinal direction of the net-like Fadengeleges (x-direction).
- the endless belts 30, 31 should move with an identical speed as possible in the longitudinal direction of the yarn layer (x-direction), said common speed Vi to the feed rate Vo of
- Querfadenablageschnecke 1 should be coordinated. If the common speed Vi of the endless belts in the direction of the yarn feed (x-direction) should be identical to the feed rate Vo of the Querfadenablageschnecke 1, so between the endless belts 30, 31 consecutively clamped transverse thread loops 2 'exactly at the distance deposits, as from the free End of the cross thread tray auger, d. H. the distance between the transversely parallel sections of the
- Transverse yarn in the finished scrim corresponds to the pitch h of the
- Querfadenablageschnecken 1 freed cross thread loops 2 ' can be further refined by that instead of only a first auxiliary device in the region of the free ends la of Querfadenablageschnecken 1 to control the filing process of the Querfadenablageschnecken 1 released loops 2 ' of the transverse thread 2 at least one more, to first auxiliary device design same auxiliary device provides, as shown in Fig. 1 and 2 is already indicated with the endless belts 40, 41 shown there on the left edge of the picture. Accordingly, a pair of upper 40 and lower 41 endless belts arranged on the right image edge (FIG. 1) again form a corresponding pair of upper and lower pairs of endless belts 40, 41 on the left image edge in FIGS Control of transport and storage of cross thread loops forms.
- This second auxiliary device thus sees just as the first auxiliary device in each case two pairs of a self-contained upper and a self-contained lower
- FIGS. 1 to 3 of a device according to the invention for producing homogeneous net-like scrim thus provides a first and second auxiliary device for Querfadenschiauf entransport connected in series, each one in the feed direction (x-direction) left and right next to the scrim lying pair Provide an upper and a lower endless belt.
- a pair of endless belts 40, 41 of the second auxiliary device relative to a pair of endless belts 30, 31 of the first auxiliary device is arranged offset in Fig. 1 to 3 on each side of the yarn delivery plane, in such a way that the bands of this first pair 30, 31 and this second pair 40, 41 of endless belts in the longitudinal direction x of the net-like Fadengeleges overlap and at the same time the vertical distance (in the z direction) of the upper 40 and the lower 41 endless belt is selected so that the transverse thread 2 slightly between the upper 40 and the lower 41 endless belt is clamped.
- Endlosbändem 30, 31 in the first auxiliary device to the second pair of Endlosbändem 40, 41 in the second auxiliary device.
- Auxiliary device it can, as shown in Fig. 3, the distance of the stored in the x direction transverse thread loops 2 'vary as follows:
- the pair of endless belts 30, 31 of the first auxiliary device and the pair of endless belts 40, 41 of the second auxiliary device are operated at the same speed. This achieves a scrim with a certain cross thread spacing di in
- Fig. 3 are in the region of a Querfadenablageschnecke 1, the first endless belt 30 above the yarn deposit level and the second endless belt 31 below the yarn deposit level to see. These two endless belts 30, 31 clamp transverse thread loops 2 ' between them and transport them at a feed speed Vi to the left.
- this speed vi is exactly matched to the feed rate of the Querfadenablageschnecke 1, ie, during the period that takes the Querfadenablageschnecke 1 for a full revolution by 360 ° at a constant rotational speed, the move
- Endless belts 30, 31 just by a distance di in the x-direction, which corresponds to the pitch h of the thread of the Querfadenablageschnecke 1.
- a second auxiliary device for controlling the filing of the transverse thread loops is attached, which comprises an upper endless belt 40 and a lower endless belt 41.
- Auxiliary device is aligned so that it overlaps in the x-direction (feed direction of the Querfadenablagesch secured 2 ' ) at least partially with the upper endless belt 30 in the first auxiliary device, while slightly offset laterally in the y_ direction (transverse thread direction) (possibly in - or as shown in Fig. 3 to the outside) is mounted relative to the thread tray plane. Accordingly, the lower endless belt 41 in the second auxiliary device is aligned so as to overlap at least partially with the lower endless belt 31 in the first auxiliary device in the x direction (feeding direction of the transverse thread laying loops 2 ' ) while being laterally shifted in the (transverse) yarn direction slightly offset is attached to it.
- the lateral offset of the upper 40 and the lower 41 endless belt in-direction is chosen so that the upper 40 and the lower endless belt 41 also still get a part of a transverse thread loop 2 ' before this cross loop 2 ' of the pair of upper 30 and lower 31 endless belts in the first auxiliary device is released.
- Endless belts 40, 41 for a controlled transfer of the transverse loop 2 ' which is between the upper 30 and the lower 31 endless belt in the first auxiliary device
- FIG. 3 again shows in detail how the speed V2 at which the upper 40 and lower 41 endless belts in the second auxiliary device move in the feed direction of the transverse thread loops 2 'is smaller than the speed Vi at which the upper 30 and move the lower 31 endless belt in the first auxiliary device in the feed direction of the transverse thread loops 2 ' .
- the laying distance (mesh size) d 2 of the transverse thread loops 2 ' deposited on the left-hand edge of FIG. 3 is smaller than the laying distance (mesh size) of the transverse thread loops 2 ' supplied from the right in FIG.
- auxiliary equipment can be expanded as desired.
- the device according to the invention with one or more auxiliary devices, it is possible to carry out in a targeted manner various methods for controlling a controlled transverse thread deposition in the production of suture layers.
- novel reticular scrims can be produced, which are characterized on the one hand by very high uniformity in the mesh tray image and on the other hand by the possibility of targeted
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Ropes Or Cables (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013013412.9A DE102013013412B3 (en) | 2013-08-09 | 2013-08-09 | Apparatus and method for producing net-like scrim and net-like scrim |
PCT/EP2014/066799 WO2015018819A1 (en) | 2013-08-09 | 2014-08-05 | Device and method for producing a net-like thread arrangement, and net-like thread arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3030705A1 true EP3030705A1 (en) | 2016-06-15 |
EP3030705B1 EP3030705B1 (en) | 2018-01-31 |
Family
ID=51359362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14752803.8A Active EP3030705B1 (en) | 2013-08-09 | 2014-08-05 | Device and method for producing a net-like thread arrangement |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3030705B1 (en) |
DE (1) | DE102013013412B3 (en) |
ES (1) | ES2667174T3 (en) |
PT (1) | PT3030705T (en) |
WO (1) | WO2015018819A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015216253A1 (en) * | 2015-08-26 | 2017-03-02 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a sliver arrangement with a plurality of multifilament yarns arranged substantially parallel to one another |
CN109397723A (en) * | 2018-10-24 | 2019-03-01 | 郑州郑飞木业有限责任公司 | A kind of manufacture craft of guiding tube |
DE102019004372A1 (en) * | 2019-06-19 | 2020-12-24 | ontec automation GmbH | Apparatus and method for ultrasonic welding joining of thread layers |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR539822A (en) * | 1921-04-02 | 1922-07-01 | New device for forming a network of threads which can be combined directly with paper, or any material previously prepared for this purpose, generally with the aim of increasing its strength | |
NL251452A (en) * | 1959-05-11 | |||
US3422511A (en) * | 1965-10-20 | 1969-01-21 | Chavanoz Moulinage Retorderie | Method and apparatus for making a non-woven fabric |
CH476881A (en) * | 1965-10-20 | 1969-08-15 | Chavanoz Moulinage Retorderie | Device for manufacturing non-woven screens |
US3638290A (en) * | 1970-09-04 | 1972-02-01 | Deering Milliken Res Corp | Apparatus for producing nonwoven fabrics |
US4369554A (en) * | 1977-04-27 | 1983-01-25 | Les Fils D'auguste Chomarat & Cie | Method for the manufacture of non-woven textile fabrics |
GB2231344B (en) * | 1989-04-20 | 1993-04-21 | Dewhurst James Ltd | Method and apparatus for forming non-woven fabric |
-
2013
- 2013-08-09 DE DE102013013412.9A patent/DE102013013412B3/en active Active
-
2014
- 2014-08-05 WO PCT/EP2014/066799 patent/WO2015018819A1/en active Application Filing
- 2014-08-05 PT PT147528038T patent/PT3030705T/en unknown
- 2014-08-05 ES ES14752803.8T patent/ES2667174T3/en active Active
- 2014-08-05 EP EP14752803.8A patent/EP3030705B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2015018819A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2015018819A1 (en) | 2015-02-12 |
EP3030705B1 (en) | 2018-01-31 |
ES2667174T3 (en) | 2018-05-09 |
DE102013013412B3 (en) | 2014-11-20 |
PT3030705T (en) | 2018-05-02 |
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