EP0196424B1 - Rame munie de pinces - Google Patents

Rame munie de pinces Download PDF

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Publication number
EP0196424B1
EP0196424B1 EP86101732A EP86101732A EP0196424B1 EP 0196424 B1 EP0196424 B1 EP 0196424B1 EP 86101732 A EP86101732 A EP 86101732A EP 86101732 A EP86101732 A EP 86101732A EP 0196424 B1 EP0196424 B1 EP 0196424B1
Authority
EP
European Patent Office
Prior art keywords
clip
flap
bearing
tenter frame
pins
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.)
Expired
Application number
EP86101732A
Other languages
German (de)
English (en)
Other versions
EP0196424A2 (fr
EP0196424A3 (en
Inventor
Harry Gresens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brueckner Trockentechnik GmbH and Co KG
Original Assignee
Brueckner Trockentechnik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Brueckner Trockentechnik GmbH and Co KG filed Critical Brueckner Trockentechnik GmbH and Co KG
Publication of EP0196424A2 publication Critical patent/EP0196424A2/fr
Publication of EP0196424A3 publication Critical patent/EP0196424A3/de
Application granted granted Critical
Publication of EP0196424B1 publication Critical patent/EP0196424B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/02—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by endless chain or like apparatus
    • D06C3/04—Tentering clips

Definitions

  • the invention relates to a tension chain provided with clips (in particular for textile machines) according to the preamble of claim 1.
  • a tension chain according to the preamble of claim 1 is known for example from GB-A-935206.
  • the arms provided on the body of the clip for pivoting the ball clip run approximately horizontally in the outer region to their outer end which forms the pivot bearing point.
  • the angle between the two arms of the clapper is also so large (in the version according to GB-A-935206 about 180 °) that the actuating arm in the open position protrudes so far over the upper edge of the cupper body that it is actuated by touching a control surface can be.
  • the known clip has an undesirably large overall height for some applications.
  • a reduction in the overall height of the clip is desirable for various reasons.
  • the minimum distance to be maintained between nozzles for hot air treatment of a web transported by means of the tension chain depends on the overall height of the clip.
  • the invention is therefore based on the object of designing a tension chain of the type required in the preamble of claim 1 in such a way that there is a substantial reduction in the overall height of the clip. At the same time, it should be ensured that the clip does not protrude beyond the profile of the clip body even in the open state, so that the chain can be transported back with opened clip.
  • the clip body is made of spheroidal graphite cast iron or cast stainless steel, i. H. a material of particularly high strength.
  • a stainless steel axle for the clapper the material pairing thus given already represents a plain bearing with a long service life.
  • the choice of the above-mentioned high-quality material for the cupper body also forms a first essential requirement for the desired reduction in the overall height.
  • the arms provided on the cuddy body for pivoting the cupping ball run obliquely upward from their attachment point to their outer end forming the pivot bearing point, so that the latter is at a greater distance from the plane of the cupping table than the attachment point.
  • a free space is created above these obliquely extending arms, into which a control member for actuating the small clod can dip.
  • the angle between the two arms of the clapper is kept so small that the actuating arm does not protrude beyond the upper edge of the cupper body in the open position.
  • the chain can be transported back when the clapper clips are open, without the clapper clips protruding above the maximum profile of the clip body.
  • the length of the hinge pin is shortened by reducing the overall height of the clip.
  • the joint bolt is designed with an extremely large diameter.
  • the ratio of length to diameter of the hinge pin is expediently between 1: 0.9 and 1: 1.5, preferably between 1: 1.1 and 1: 1.3.
  • the clip 1 shown in FIG. 1 is part of a tension chain which moves along a fixed guide 2 perpendicular to the plane of the drawing.
  • the web 3 captured by the tenter is indicated by dashed lines.
  • the tensioning chain consists of a number of clips 1 of the same type, which are connected to one another via hinge bolts 4 and brackets.
  • the clip 1 essentially consists of a clip body 5, which is illustrated in detail in FIGS. 2 and 3, and a clip clip 6, the details of which can be seen in FIGS. 4 and 5.
  • the clip body 5 forms with two surfaces 7, 8 an outer plate pair between which the two inner plates 9 and 10 of an inner plate pair shown in FIGS. 6 and 7 engage (for reasons of clarity, the inner plate pair formed by the inner plates 9, 10 is shown in FIG. 1 not shown).
  • the surfaces 7 and 8 of the clip body 9 which form the outer plates are provided with bores 11, 12 for receiving the hinge pins 4.
  • the two steel inner plates 9, 10 of a pair of inner plates are firmly connected to each other in the area of the two articulation points by a pressed-in chain bushing 13, 14.
  • a protective roller 15, 16 is rotatably arranged on the chain bushings 13, 14 with the interposition of sliding lacquer 17.
  • the protective rollers 15, 16 perform a slight rotary movement when the chain enters the chain wheel. Since this movement is small, the sliding surface between the chain bushing 13, 14 and the protective roller 15, 16 can be adequately lubricated for life with sliding lacquer 17.
  • a slide bearing bushing 18, 19 is also arranged in the chain bushings 13, 14.
  • the hinge pin 4 is drilled hollow, i. H. provided with an upwardly open recess 20.
  • the lower end 4a of the hinge pin 4 forms the inner ring of a ball bearing 21, the outer ring 22 of which forms a roller which engages with a rail 23 of the fixed guide 2.
  • the interior of the ball bearing 21 is sealed at the bottom by a circular cover 27 and at the top by an annular cover 28.
  • the annular cover 28 forms a small running gap with the hinge pin 4. This sealing of the ball bearing 21 ensures that fat losses, particularly downwards, cannot occur.
  • the ratio is from length 1 to diameter d of the hinge pin 4 in the illustrated embodiment approximately at 1: 1.2.
  • the hinge pin 4 is provided above the ball bearing 21 with an attached ring 29, which rests on the underside of the surface 8 of the clip body 5.
  • a spring steel sheet 30 is provided, the design of which can be seen in FIG. It contains two recesses 31, 32 which are open towards the front and whose parallel side edges come into engagement with lateral flat grooves 4b of the chain bolts 4. In this way, the hinge pin 4 is secured on the one hand by the spring steel sheet 30 and the ring 29 against axial movement and on the other hand prevented by the spring steel sheet 30 from rotating relative to the clip body 5.
  • the bracket body 5 which is made of spheroidal graphite cast iron or stainless steel casting, contains, in addition to the two surfaces 7, 8 already mentioned, which form the outer plates, an arm 33 and two arms 34, 35 for pivoting the bracket clip 6.
  • the arms 34, 35 extend from its attachment point on the main part of the clip body 5 obliquely upwards to its outer end forming the pivot bearing point (bore 36 FIG. 3), so that the latter is at a greater distance from the plane of the arm 33 than the attachment point. This results in a free space 37 above the arms 34, 35, into which a control member for actuating the small clip can engage (as is clear from the description of FIGS. 9 to 11).
  • the clip 6 shown in its details in FIGS. 4 and 5 is made in one piece from a hardenable stainless steel investment casting. It is essentially designed as a two-armed angle lever and contains an arm 38 forming the clip knife and an actuating arm 39. Furthermore, on the underside of the clip is 6 two webs 40, 41 are provided which receive the axis of a push button roller 43 in a bore 42 (cf. FIG. 1). Another bore 44 in the webs 40, 41 serves to receive an axis, via which a spring housing 45 is pivotably articulated on the clip 6.
  • the clip 6 is produced as follows: After the casting, the clip 6 is first hardened in the area of the knife edge (lower end of the arm 38). Then the pivot bearing bore 46 is made. The clip 6 is then received in the swivel bearing bore 46 produced for further processing.
  • the clamp table 48 here consists of a flat, for example 3 mm thick steel plate which is carried by the arm 33 of the clamp body 5, fastened to it by means of hollow rivets and then machined.
  • the processing takes into account the absolute parallelism of the axis to the bore 36 (pivot bearing axis for the clip 6).
  • the spring housing 45 provided between the bracket body 5 and the actuating arm 39 of the bracket 6 has at its end facing the bracket body an elongated hole 49 with which it is guided on a bearing pin 50 provided on the bracket body 5.
  • the clip body 5 is provided with a recess 51 for receiving the spring housing 45.
  • a compression spring 52 is provided, which is supported on the one hand on the bearing pin 50 and on the other hand on the bearing pin 53, via which the spring housing 45 is connected in an articulated manner to the actuating arm 39 of the clip 6.
  • the length of the compression spring 52 and the distance between the two bearing bolts 50, 53 is dimensioned such that the compression spring 52 holds the clip 6 under spring force in the open position.
  • This situation is illustrated in Fig. 11.
  • the compression spring 52 has a spring length of 19 mm (in the non-compressed state)
  • the compression spring in the position shown in FIG. 11 has a length of 17 mm, for example.
  • the chain can be transported back, the clip 6 in the open position not protruding beyond the upper edge of the clip body 5.
  • the compression spring 52 is first compressed even further, in which it is shown in FIG illustrated intermediate position, for example, has a spring length of 14mm.
  • the compression spring In the closed position (FIG. 9) the compression spring then has, for example, a length of 18 mm, so that the clip 6 is guided into the closed position by spring force and held in it. With this dimensioning of the compression spring or with the arrangement of the bearing pin 50 in the position illustrated with solid lines, the clip 6 is thus guided into the closed position by spring force.
  • the button roller 43 initially rests on the web 3 and is pulled outwards (ie in the direction of arrow 55 according to FIG. 1), with the tenter clip not yet fully closed. If the edge of the material web 3 then moves under the feeler roller 43, the feeler roller 43 falls down (into the recesses 56 in the clip table or in the arm 33 shown in FIG. 2), so that the clip clip 6 falls into the closed position. With this function as a “groping clip”, the clip 6 should not be exposed to any spring force in the last part of the closing movement.
  • the bearing pin 50 is arranged in the position 50 'indicated by dashed lines. If the compression spring of 19 mm spring length (in the relaxed state) assumed in the above example is taken as a basis, the compression spring in the open position of the clip also has a spring length of 17 mm (so that the clip also is held in the open position by spring force). In the closed position (corresponding to FIG. 9), on the other hand, the distance between the bearing pin 53 and the bearing pin 50 now in position 50 'is approximately 23 mm. The spring (19 mm long) is now completely relaxed, with some play, between the two bearing pins when the clip is closed.
  • an additional spring washer 57 is provided in the embodiment according to FIG.
  • Fixed carbon rails 58, 59, on which the clip body 5 is supported with snapped-on steel springs 60, 61, serve for guiding and vertical support of the clip chain according to FIG.
  • the selected geometry of the chain bar and chain allows 10 mm high coals to be used. This means that non-impregnated carbons can be used.
  • the rear limit of the chain travel is made with a wedge steel 62 to which a brass profile 63 is screwed.
  • This brass profile 63 carries the carbon rail 58 on the one hand and at the same time serves to support the chain if the chain is not pulled by rail tensioning forces on the rail 23. It must be expected that the clips will also dip into the chain rail once. H. tarnish on the back. Due to the selected material pairing (spheroidal graphite cast iron or stainless steel cast for the clip body, brass for the profile 63), such counter-running is not critical.
  • an additional wedge steel 64 lying horizontally can be screwed onto said wedge steel 62 at the critical points, which results in a contact surface for a supporting plastic element 65.
  • the rigidity of the overall construction is achieved by selecting appropriately strong profiles. This reliably prevents the chain from rising.
  • the feeler roller 43 is made of aluminum, which is chemically oxidized, so that an extremely hard surface results.
  • the feeler roller 43 is supported by means of a stud screw 66 (possibly with a plain bearing bush).
  • Fig. 12 shows in detail a clip in a sliding design.
  • a slide shoe 68 is fastened here by means of a screw 67, which on the one hand can absorb the fabric tensioning forces against an additionally arranged carbon rail 69 (via a steel spring 70) and on the other hand is designed so that it immerses the chain when immersed in the Can support the chain rail (ie when the clip moves to the left) against the brass profile 63 arranged there.
  • the clip according to the invention is not only distinguished by a significantly reduced overall height compared to known designs, but also has a number of further significant advantages. So the clip can be used up to about 300 ° C without loss of performance; it can also be used in processes that work with non-neutral (acidic or basic) substances.
  • the chain is suitable for sliding or rolling tension transfer, whereby the sliding surfaces of the chain consist of standard carbons.
  • the small grease paths in the hinge pins prevent grease loss when relubricating.
  • the clip allows working speeds of up to about 300 m / min. Ball bearings are given a sufficiently large diameter so that speeds of around 2000 rpm are not exceeded due to the life of the grease used for lubrication.
  • the stylus roller 43 can also be made of plastic, brass or stainless steel instead of aluminum.
  • the bearing bore 36 ( Figure 3) can also be provided with a plain bearing bush to avoid the formation of vibration rust.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Advancing Webs (AREA)
  • Clamps And Clips (AREA)
  • Chain Conveyers (AREA)

Claims (12)

1. Rame, ou plus précisément chaîne de tension équipée de pinces, en particulier pour machines textiles,
a) se composant de multiples pinces (1) articulées les unes sur les autres au moyen de tourillons (4) et de maillons,
b) chaque pince comportant un corps (5) ainsi qu'un bec (6) articulé sur le corps et mobile entre une position d'ouverture et une position de fermeture,
c) le corps (5) de la pince comprenant une table (48) ainsi que deux bras (34, 35) d'articulation du bec (6),
d) et le bec (6) conformé en levier coudé à deux bras comprenant un bras (38) formant la lame de la pince ainsi qu'un bras d'actionnement (39),
caractérisée par les particularités suivantes:
e) le corps (5) de la pince est en fonte nodulaire ou en fonte d'acier spécial;
f) les bras (34, 35) prévus sur le corps (5) de la pince pour l'articulation du bec (6) sont orientés obliquement vers le haut de leur point de départ vers leur extrémité extérieure formant le lieu d'articulation, de sorte que cette extrémité extérieure est à plus grande distance du plan de la table (48) que le point de départ;
g) l'angle inscrit entre les deux bras (38, 39) du bec (6) est maintenu à une valeur suffisamment faible pour que le bras d'actionnement (39) en position d'ouverture ne dépasse pas du bord supérieur du corps (5) de la pince;
h) le rapport de la longueur 1 au diamètre d des tourillons (4) est compris entre 1:0,9 et 1:1,5, de préférence entre 1:1,1 et 1:1,3.
2. Chaîne de tension selon la revendication 1, comprenant des paires intérieures et des paires extérieures de maillons reliées par des tourillons (4), caractérisée en ce que les paires de maillons extérieures sont formées par le corps (5) des pinces.
3. Chaîne de tension selon la revendication 2, caractérisée par les éléments suivants des paires de maillons intérieures:
a) deux maillons intérieurs (9, 10) d'acier qui sont assujettis l'un à l'autre à chacun des deux lieux d'articulation au moyen d'une douille (13, 14) emboutie à ajustement serré;
b) un rouleau de protection (15, 16) monté rotatif sur chacune des douilles (13, 14) avec interposition de laque de glissement (17);
c) un coussinet (18, 19) monté dans chacune des douilles (13, 14).
4. Chaîne de tension selon la revendication 1, caractérisée en ce que le tourillon (4) comporte un forage en creux.
5. Chaîne de tension selon la revendication 1 en mode de réalisation à roulement, caractérisée par les particularités suivantes:
a) l'extrémité inférieure (4a) du tourillon d'articulation (4) forme le chemin intérieur d'un roulement à billes (21), dont le chemin extérieur (22) forme un galet qui est en butée contre une barre fixe de guidage (23);
b) un trou (25, 26) équipé d'un graisseur (24) mène du fond de la cavité (20) du tourillon (4) à l'intérieur du roulement à billes (21);
c) le volume interne du roulement à billes (21) est fermé de manière totalement étanche vers le bas par un couvercle circulaire (27) empêchant les pertes de graisse:
d) le volume interne du roulement à billes (21) est fermé hermétiquement vers le haut par un couvercle annulaire (28) laissant subsister un interstice vis-à-vis du tourillon (4).
6. Chaîne de tension selon la revendication 1, caractérisée par les particularités suivantes d'arrêt des tourillons (4) lui interdisant tout mouvement de rotation et/ou tout mouvement axial:
a) les tourillons (4) sont rainurés latéralement à plat à l'extrémité supérieure;
b) une tôle d'acier à ressort (30) pouvant se glisser par l'arrière du corps (5) de la pince sur les deux tourillons (4) comprend deux évidements (31, 32) ouverts vers l'avant et dont les bords latéraux parallèles s'insèrent dans les rainures latérales des tourillons (4).
7. Chaîne de tension selon la revendication 1, caractérisée en ce que le bec (6) de la pince est réalisé en une pièce par coulée de précision de fonte d'acier spécial capable de subir une trempe.
8. Chaîne de tension selon la revendication 1, caractérisée par les particularités suivantes:
a) une cage de ressort (45) prévue entre le corps (5) de la pince et le bras d'actionnement (39) du bec (6) est articulée au moyen d'un tourillon (53) sur le bras d'actionnement (39) du bec;
b) la cage de ressort (45) comporte à l'extrémité tournée vers le corps (5) de la pince une boutonnière (49) par laquelle elle est guidée sur un tourillon (50) prévu sur ledit corps (5);
c) un ressort de compression (52) prenant appui sur lesdits deux tourillons (50, 53) est monté dans ladite cage (49), la longueur de ce ressort et la distance séparant lesdits deux tourillons étant calculées de manière que ce ressort maintienne le bec de la pince en position d'ouverture.
9. Chaîne de tension selon la revendication 8, caractérisée en ce que la longueur du ressort de compression (52) et la distance séparant lesdits deux tourillons (50, 53) sont calculées de manière que ce ressort retienne aussi le bec (6) en position de fermeture.
10. Chaîne de tension selon la revendication 8, caractérisée en ce que la longueur du ressort de compression (52) et la distance séparant lesdits deux tourillons (50', 53) sont calculées de manière que le ressort soit totalement détendu à la position de fermeture du bec de la pince, de préférence avec jeu, entre ces deux tourillons.
11. Chaîne de tension selon la revendication 8, caractérisée en ce que le corps (5) de la pince comporte des alésages de logement du tourillon (50, 50') en deux emplacements différents, le ressort de compression (52) maintenant aussi le bec de la pince en position de fermeture lorsque ce tourillon (50) est à la première position et étant totalement détendu entre les deux tourillons lorsque le premier de ceux-ci est à la seconde position (50').
12. Procédé de réalisation d'une pince comprenant un bec (6) selon la revendication 7, caractérisé par les phases suivantes:
a) à la fin de la coulée, le bec (6) subit tout d'abord une trempe dans la région de l'arête de la lame;
b) l'alésage d'articulation (46) est ensuite réalisé, puis ce bec est monté sur cet alésage pour la suite de l'usinage;
c) la surface verticale de la lame (47a) est ensuite affûtée et la surface oblique de la lame (47b) est affûtée avec maintien d'une certaine surépais- seur;
d) finalement, la cote exacte de la distance à séparant l'axe de l'alésage d'articulation (46) et l'arête de la lame s'obtient par rectification d'un biseau (47c);
e) la cote exacte de la distance séparant l'axe de l'alésage d'articulation (36) et la table (48) s'obtient de manière correspondante lors de la réalisation du corps (5) de la pince.
EP86101732A 1985-04-04 1986-02-12 Rame munie de pinces Expired EP0196424B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3512417 1985-04-04
DE19853512417 DE3512417A1 (de) 1985-04-04 1985-04-04 Mit kluppen versehene spannkette

Publications (3)

Publication Number Publication Date
EP0196424A2 EP0196424A2 (fr) 1986-10-08
EP0196424A3 EP0196424A3 (en) 1987-03-25
EP0196424B1 true EP0196424B1 (fr) 1988-10-26

Family

ID=6267349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101732A Expired EP0196424B1 (fr) 1985-04-04 1986-02-12 Rame munie de pinces

Country Status (3)

Country Link
US (1) US4706348A (fr)
EP (1) EP0196424B1 (fr)
DE (2) DE3512417A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611351A1 (de) * 1986-04-04 1987-10-08 Brueckner Trockentechnik Gmbh Kluppe fuer spannketten
DE3713063A1 (de) * 1987-04-16 1988-11-03 Brueckner Trockentechnik Gmbh Transportkette fuer warenbahn-spannmaschinen
DE19510281C1 (de) * 1995-03-21 1995-12-07 Brueckner Maschbau Transportvorrichtung für eine bewegte Materialbahn, insbesondere eine Reckanlage für Kunststoff-Folienbahnen
DE19510141C1 (de) * 1995-03-21 1996-08-14 Brueckner Maschbau Transportvorrichtung für eine bewegte Materialbahn, insbesondere eine Reckanlage für Kunststoffolien-Bahnen
US7162781B2 (en) * 2004-09-27 2007-01-16 Fuji Photo Film Co., Ltd. Tenter device
DE102013017011A1 (de) * 2013-10-14 2015-04-30 Brückner Maschinenbau GmbH & Co. KG Kluppen-Transporteinheit
KR20150052683A (ko) * 2013-11-06 2015-05-14 삼성전자주식회사 텐터 장치

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070579B (fr) * 1959-12-10
US655205A (en) * 1900-05-26 1900-08-07 Thomas Phillips Company Clip for tentering-machines.
GB935206A (en) * 1962-03-28 1963-08-28 Marshall & Williams Corp Two-piece tenter chain element
GB1191296A (en) * 1967-11-24 1970-05-13 Pasolds Ltd Fabric Laying Machine
DE1801695A1 (de) * 1968-10-08 1970-06-04 Brueckner Maschb Gernot Brueck Spannkluppe
DE1925284C3 (de) * 1969-05-17 1978-09-28 Lindauer Dornier-Gesellschaft Mbh, 8990 Lindau Kluppenkette für Spannkluppen in Spannrahmen
GB1277835A (en) * 1970-09-09 1972-06-14 Proctor And Schwartz Inc Tenter clip and method of manufacture
US4134189A (en) * 1977-12-16 1979-01-16 Richter Hans H Tentering clip chain
DE2822078A1 (de) * 1978-05-20 1979-11-22 Artos Meier Windhorst Kg Kluppentisch
DE3333938C2 (de) * 1983-09-20 1987-02-05 Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg Transportkette für Spannmaschinen

Also Published As

Publication number Publication date
EP0196424A2 (fr) 1986-10-08
EP0196424A3 (en) 1987-03-25
DE3512417A1 (de) 1986-10-16
DE3661029D1 (en) 1988-12-01
US4706348A (en) 1987-11-17

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