GB2335931A - Needling apparatus with two eccentric drives - Google Patents
Needling apparatus with two eccentric drives Download PDFInfo
- Publication number
- GB2335931A GB2335931A GB9906572A GB9906572A GB2335931A GB 2335931 A GB2335931 A GB 2335931A GB 9906572 A GB9906572 A GB 9906572A GB 9906572 A GB9906572 A GB 9906572A GB 2335931 A GB2335931 A GB 2335931A
- Authority
- GB
- United Kingdom
- Prior art keywords
- eccentric
- eccentric shafts
- needle board
- drive
- eccentric drive
- 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
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
- D04H18/00—Needling machines
- D04H18/02—Needling machines with needles
-
- 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
- D04H18/00—Needling machines
Abstract
An apparatus for needling a web, comprising at least one needle board 2 reciprocatingly movable in the stitching direction 4 of the needles, via an eccentric drive 5. The needle board is also reciprocatingly movable in the direction of web movement 16 by means of an additional eccentric drive 15, which consists of two parallel eccentric shafts 17, movable in opposite directions and provided with connecting rods 19. In operation the needle board is driven by the main eccentric drive, in the stitching direction of the needles via push rods 3, which are each movably mounted in a guiding sleeve 10. The guiding sleeves are rigidly connected with each other and pivotally mounted about an axis 12, extending parallel to all eccentric shafts 7 and 17. Via a rigid guiding arm 21, the sleeves are articulated at a coupler 20, connecting the connecting rods of the two eccentric shafts, of the additional eccentric drive 15. The additional eccentric drive also has a means for adjusting the mutual phase position of its two eccentric shafts.
Description
1 APPARATUS FOR NEEDLING A WEB
1. Field of the Invention
2335931 This invention relates to an apparatus for needling a web, comprising at least one needle board reciprocatingly movable in stitching direction of the needles by means of an eccentric drive, which needle board is reciprocatingly movable in the direction of web movement by means of an additional eccentric drive, which consists of two parallel eccentric shafts which are provided with connecting rods and are movable in opposite directions.
2. Description of the Prior Art
Since the web to be needled is retained with respect to the web feed during the needle impingement, the web can only make a feed movement with respect to the needles during the release of the web by the needles. To be able to increase the web feed between the needle impingements, it is known (DE 196 15 697 A1) to provide an additional reciprocating needle board drive in direction of web movement, so that the web feed is increased by the component of movement of the needle board in direction of web movement. This additional drive for the needle board is formed, like the main drive acting in stitching direction of the needles, by an eccentric drive, whose connecting rod is articulated at the needle bar carrying the needle board. An arrangement of two parallel eccentric shafts for the additional eccentric drive provides for a parallel guidance of the needle bar, because in this case the connecting rods form the guide rods of an articulated parallelogram. For adjusting the stroke of the additional eccentric drive for the reciprocating movement of the needle board in direction of web movement, the connecting rods may be supported on the eccentric shafts via adjusting eccentrics. For stroke adjustment, the adjusting eccentrics must therefore be rotated, which involves a change in the eccentricity of the eccentric drive. What is, however, disadvantageous in such a stroke adjustment is the fact that the rotary adjustment of the adjusting eccentrics is only possible in a complex way, because the adjusting eccentrics must be fixedly connected with the eccentric pins of the eccentric shafts in the respectively adjusted position. In addition, due to the guidance of the needle bar in stitching direction by the connecting rods of the additional eccentric drive, comparatively large lengths of the connecting rods are required, which prevent a common arrangement of the eccentric drives for the main drive and the additional drive in a common transmission housing.
It is therefore the object underlying the invention to provide an apparatus for needling a web as described above such that on the one hand there is ensured a simple stroke adjustment of the additional eccentric drive for the reciprocating movement of the needle board in direction of web movement, and on the other hand a spacesaving construction can be ensured, which allows the arrangement of the eccentric drives for the main drive and the additional drive in a common transmission housing.
SUMMARY OF THE INVENTION
This object is solved by the invention in that in a manner known per se the needle board is articulated at the eccentric drive for driving the needle board in stitching direction of the needles via push rods which are each movably mounted in a guiding sleeve, that the guiding sleeves are pivotally mounted about an axis extending parallel to the eccentric shafts and via a rigid guiding arm are articulated at a coupler connecting the connecting rods of the two eccentric shafts of the additional eccentric drive, and that the additional eccentric drive has a means for adjusting the mutual phase position of the two eccentric shafts.
Since the needle board is driven in stitching direction of the needles via push rods movably mounted in guiding sleeves, the guidance of the needle board in stitching direction of the needles becomes independent of the length of the connecting rods of the additional eccentric drive for driving the needle board in direction of web movement. However, such guidance of the needle board requires a pivotal mounting of the guiding sleeves about a swivel axis parallel to the eccentric shafts. The drive connection between the guiding sleeves and the additional ec- centric drive is effected via a guiding arm rigidly connected with the guiding sleeves, which guiding arm is articulated at a coupler connecting pairs of the connecting rods of the two eccentric shafts of the additional eccentric drive. Since the stroke of the point of articulation of the guiding arms at the couplers connecting the connecting rods depends on the coupling movement and thus on the mutual phase position of the two eccentric shafts with given eccentricities, the swivel stroke for the guiding sleeves can easily be adjusted by a means for adjusting the mutual phase position of the two eccentric shafts. The connecting rods connected in pairs by means of couplers can be kept very short, so that the accommodation of the additional eccentric drive for driving the needle board in direction of web movement in a common housing creates no difficulties. The guiding sleeves can simply be rigidly connected with each other inside the housing, in order to obtain a rigid enough construction.
To obtain a compact drive unit with a low overall height, there may be employed, in accordance with a further embodiment of the invention, an apparatus with an eccentric drive provided for driving the needle board in stitching direction of the needles, which eccentric drive consists of two parallel eccentric shafts which are provided with connecting rods and are movable in opposite directions. The essential aspect is that the connecting rods arranged on the side of the eccentric shafts facing away from the needle board are connected in pairs wilth a coupler, in which engage the push rods guided between the two eccentric shafts, and that the swivel axis of the guiding sleeves extends in the vicinity of the common axial plane of the eccentric shafts. As a result of these measures, the overall height is substantially determined by the length of the connecting rod of the main drive, because the push rods of the couplers connecting the connecting rods extend towards the eccentric shafts between the same. The arrangement of the swivel axis of the guiding sleeves accommodating the push rods in the vicinity of the common axial plane of the eccentric shafts of the main drive involves advantageous conditions for the necessary mass balance.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing, the subject-matter of the invention is represented by way of example, wherein..
Fig. 1 shows segments of an inventive apparatus for needling a web in the vicinity of the eccentric drives in a simplified section vertical to the eccentric shafts, and Fig. 2 shows this apparatus in a section parallel to the eccentric shafts.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The represented apparatus for needling a web has a needle board 2 disposed on a needle bar 1, which needle board is reciprocatingly movable via push rods 3 in stitching direction 4 of the needles, namely via an eccentric drive 5 which consists of two eccentric shafts 7 rotatably mounted in a housing 6, where connecting rods 9 are mounted on the eccentrics 8 of said eccentric shafts. The push rods 3, which are guided so as to be axially movable in guiding sleeves 10, engage in the connecting rods 9 of the couplers 11 connecting the two eccentric shafts, where the arrangement has been made such that the couplers 11 are provided on the side of the eccentric shafts 7 facing away from the needle board 2. Accordingly, the guiding sleeves 10 with the push rods 3 extend between the two eccentric shafts 7, as this can be taken in particular from Fig. 1.
In contrast to conventional push rod guiding systems, the guiding sleeves 10 of the inventive apparatus are pivotally mounted in the housing 6 about a swivel axis 12 parallel to the eccentric shafts 7. The guiding sleeves 10 form a rigid constructional unit, which is obtained by connecting tubes 13 and a web plate 14 between these connecting tubes 13. By means of an additional eccentric drive 15, the constructional unit formed by the guiding sleeves 10 can reciprocatingly be swivelled about the swivel axis 12 in direction of web rnovement 16 (Fig. 1). For this purpose, the eccentric drive 15 has two parallel eccentric shafts 17, whose eccentrics 18 carry connecting rods 19, which are connected in pairs by a coupler 20. Since a guiding arm 21 rigidly connected with the respective guiding sleeve 10 engages in the coupler 20, the guiding sleeves 10 are reciprocated by the eccentric drive 15. In the case of a corresponding synchronization of the eccentric drives 5 and 15, the needles 22 of the needle board 2 are thus moved into the web in direction of web movement 16 during the needle impingement, in order to be moved back into the stitching position upon release of the web against the direction of web movement 16. By means of a known means for adjusting the mu- - tual phase position of the two eccentric shafts 17, which is not represented in detail, the stroke of the eccentric drive 15 can easily be adjusted corresponding to the respective requirements, as this can directly be taken from Fig. 1.
The eccentric shafts 7 and 17 of the eccentric drives 5 and 15, respectively, rotate in opposite directions due to the n"ssary mass balance. The additional counterbalance weights for the needle bar 1 and the needle board 2 are designated with 23. To create advantageous conditions for the mass balance required as a result of the additional eccentric drive, the swivel axis 12 lies in a common axial plane with the eccentric shafts 7 of the eccentric drive 5.
6
Claims (4)
1. An apparatus for needling a web, comprising at least one needle board reciprocatingly movable in stitching direction of the needles, which is reciprocatingly movable in direction of web movement by means of an additional eccentric drive, which consists of two parallel eccentric shafts which are provided with connecting rods and are movable in opposite directions, characterized in that in a manner known per se the needle board (2) is articulated at the eccentric drive (5) for driving the needle board in stitching direction (4) of the needles via push rods (3) which are each movably mounted in a guiding sleeve (10), that the guiding sleeves (10) are pivotally mounted about an axis (12) extending parallel to the eccentric shafts (7, 17) and via a rigid guiding arm (21) are articulated at a coupler (20) connecting the connecting rods (19) of the two eccentric shafts (17) of the additional eccentric drive (15), and that the additional eccentric drive (15) has a means for adjusting the mutual phase position of the two eccentric shafts (17).
2. The apparatus as claimed in claim 1, characterized in that the guiding sleeves (10) are rigidly connected with each other.
3. The apparatus as claimed in claim 1 or 2, comprising an eccentric drive for driving the needle board in stitching direction of the needles, which eccentric drive consists of two parallel eccentric shafts which are provided with connecting rods and are movable in opposite directions, characterized in that the connecting rods (9) disposed on the side of the eccentric shafts (7) facing away from the needle board (2) are connected in pairs with a coupler (11), in which engage the push rods (3) guided between the two eccentric shafts (7), and that the swivel axis (12) of the guiding sleeves (10) extends in the vicinity of the common axial plane of the eccentric shafts (7).
4. Apparatus for needling a web substantially as hereinbefore described with reference to, and as shown in, the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPP056298 | 1998-03-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9906572D0 GB9906572D0 (en) | 1999-05-19 |
GB2335931A true GB2335931A (en) | 1999-10-06 |
GB2335931B GB2335931B (en) | 2002-03-20 |
Family
ID=3804844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9906572A Expired - Fee Related GB2335931B (en) | 1998-03-31 | 1999-03-22 | Apparatus for needling a web |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2335931B (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2355020A (en) * | 1999-10-08 | 2001-04-11 | Fehrer Textilmasch | Facility for needling of fleece |
GB2355730A (en) * | 1999-10-29 | 2001-05-02 | Fehrer Textilmasch | Apparatus for needling a fleece |
FR2817562A1 (en) * | 2000-12-06 | 2002-06-07 | Fehrer Textilmasch | DEVICE FOR NEEDING A FIBER MATTRESS |
GB2374608A (en) * | 2001-04-19 | 2002-10-23 | Fehrer Textilmasch | Needling apparatus with two oppositely driven eccentric drives and at least one additional eccentric drive |
FR2829158A1 (en) * | 2001-09-06 | 2003-03-07 | Fehrer Textilmasch | DEVICE FOR NEEDING A FIBER MATTRESS |
GB2381276A (en) * | 2001-10-23 | 2003-04-30 | Fehrer Textilmasch | Needling apparatus with two oppositely driven eccentric drives and at least one additional eccentric drive |
GB2408517A (en) * | 2003-11-27 | 2005-06-01 | Fehrer Textilmasch | Needling apparatus with inclined connecting rods and guided push rods |
GB2412667A (en) * | 2004-03-31 | 2005-10-05 | Fehrer Textilmasch | Needleboard reciprocating mechanism |
FR2909103A1 (en) * | 2006-11-29 | 2008-05-30 | Asselin Thibeau Soc Par Action | Needle punching apparatus for making non-woven materials from fiber lap, comprises frame, and unit for guiding product e.g. fiber lap according to forward longitudinal direction in plane and width of product |
EP3901347A1 (en) * | 2020-04-23 | 2021-10-27 | Andritz Asselin-Thibeau | Elliptic needle loom with sealed housing and tilted box for guiding the crossmember |
EP3901348A1 (en) * | 2020-04-23 | 2021-10-27 | Andritz Asselin-Thibeau | Elliptic needle loom with sealed housing and box for guiding the crossmember |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5732453A (en) * | 1995-09-15 | 1998-03-31 | Oskar Dilo Maschinenfabrik Kg | Needle bar driving apparatus of a needle loom |
EP0892102A2 (en) * | 1997-07-16 | 1999-01-20 | Oskar Dilo Maschinenfabrik KG | Needling machine |
-
1999
- 1999-03-22 GB GB9906572A patent/GB2335931B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5732453A (en) * | 1995-09-15 | 1998-03-31 | Oskar Dilo Maschinenfabrik Kg | Needle bar driving apparatus of a needle loom |
EP0892102A2 (en) * | 1997-07-16 | 1999-01-20 | Oskar Dilo Maschinenfabrik KG | Needling machine |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2355020B (en) * | 1999-10-08 | 2003-07-16 | Fehrer Textilmasch | Apparatus for needling of fleece |
FR2799477A1 (en) * | 1999-10-08 | 2001-04-13 | Fehrer Textilmasch | DEVICE FOR REFERRING A FIBER MATTRESS |
GB2355020A (en) * | 1999-10-08 | 2001-04-11 | Fehrer Textilmasch | Facility for needling of fleece |
GB2355730A (en) * | 1999-10-29 | 2001-05-02 | Fehrer Textilmasch | Apparatus for needling a fleece |
FR2800396A1 (en) * | 1999-10-29 | 2001-05-04 | Fehrer Textilmasch | DEVICE FOR NEEDING A FIBER MATTRESS |
GB2355730B (en) * | 1999-10-29 | 2003-08-06 | Fehrer Textilmasch | Needling apparatus with two eccentric drives |
GB2369831A (en) * | 2000-12-06 | 2002-06-12 | Fehrer Textilmasch | Needling apparatus with a needle board driven in both the direction of needling and the direction of passage of a non-woven material through the apparatus |
FR2817562A1 (en) * | 2000-12-06 | 2002-06-07 | Fehrer Textilmasch | DEVICE FOR NEEDING A FIBER MATTRESS |
GB2369831B (en) * | 2000-12-06 | 2004-09-01 | Fehrer Textilmasch | Needling apparatus with a needleboard support and two parallel eccentric drives |
FR2823772A1 (en) * | 2001-04-19 | 2002-10-25 | Fehrer Textilmasch | DEVICE FOR NEEDING A FIBER MATTRESS |
GB2374608A (en) * | 2001-04-19 | 2002-10-23 | Fehrer Textilmasch | Needling apparatus with two oppositely driven eccentric drives and at least one additional eccentric drive |
GB2374608B (en) * | 2001-04-19 | 2004-11-24 | Fehrer Textilmasch | An apparatus for needling a non-woven material |
FR2829158A1 (en) * | 2001-09-06 | 2003-03-07 | Fehrer Textilmasch | DEVICE FOR NEEDING A FIBER MATTRESS |
GB2381276A (en) * | 2001-10-23 | 2003-04-30 | Fehrer Textilmasch | Needling apparatus with two oppositely driven eccentric drives and at least one additional eccentric drive |
GB2381276B (en) * | 2001-10-23 | 2005-06-01 | Fehrer Textilmasch | An apparatus for needling a non-woven material |
GB2408517A (en) * | 2003-11-27 | 2005-06-01 | Fehrer Textilmasch | Needling apparatus with inclined connecting rods and guided push rods |
GB2408517B (en) * | 2003-11-27 | 2007-07-11 | Fehrer Textilmasch | An apparatus for needling a non-woven material |
GB2412667A (en) * | 2004-03-31 | 2005-10-05 | Fehrer Textilmasch | Needleboard reciprocating mechanism |
GB2412667B (en) * | 2004-03-31 | 2007-10-17 | Fehrer Textilmasch | An apparatus for needling a non-woven material |
FR2909103A1 (en) * | 2006-11-29 | 2008-05-30 | Asselin Thibeau Soc Par Action | Needle punching apparatus for making non-woven materials from fiber lap, comprises frame, and unit for guiding product e.g. fiber lap according to forward longitudinal direction in plane and width of product |
EP1927692A1 (en) * | 2006-11-29 | 2008-06-04 | Asselin-Thibeau | Tilting punching device and method |
EP3901347A1 (en) * | 2020-04-23 | 2021-10-27 | Andritz Asselin-Thibeau | Elliptic needle loom with sealed housing and tilted box for guiding the crossmember |
EP3901348A1 (en) * | 2020-04-23 | 2021-10-27 | Andritz Asselin-Thibeau | Elliptic needle loom with sealed housing and box for guiding the crossmember |
Also Published As
Publication number | Publication date |
---|---|
GB2335931B (en) | 2002-03-20 |
GB9906572D0 (en) | 1999-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20090322 |