EP0196424A2 - Rame munie de pinces - Google Patents

Rame munie de pinces Download PDF

Info

Publication number
EP0196424A2
EP0196424A2 EP86101732A EP86101732A EP0196424A2 EP 0196424 A2 EP0196424 A2 EP 0196424A2 EP 86101732 A EP86101732 A EP 86101732A EP 86101732 A EP86101732 A EP 86101732A EP 0196424 A2 EP0196424 A2 EP 0196424A2
Authority
EP
European Patent Office
Prior art keywords
clip
bearing
compression spring
clip body
chain
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
Application number
EP86101732A
Other languages
German (de)
English (en)
Other versions
EP0196424B1 (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.
  • the clips are generally made of aluminum.
  • the arms provided on the bracket body for pivoting the bracket clip run horizontally from their attachment point to their outer end forming the pivot bearing point.
  • the angle between the two arms of the Kluppenklappchen is also so large that the actuating arm in the open position protrudes so far above the upper edge of the Kluppen emotionss that this actuating arm can be pressed into the closed position by contact with a control surface.
  • the known clip has an undesirably large overall height for some applications.
  • the joint pins of the known clip chain thus have a length to diameter ratio of the order of about 2: 1.
  • a reduction in the overall height of the known clip is now 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.e. 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 upwards 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 clutch table than the attachment point. This will be above this sloping arms created a free space in which a control member for operating the Kloppenklappchen can dip.
  • the angle between the two arms of the small ball is kept so small that the actuating arm does not protrude beyond the upper edge of the small body in the open position.
  • the chain can be transported back when the clapper clips are open, without the cupping clips protruding upward beyond 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 pin 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 Figure 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 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 forming 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 in the range of two articulation points firmly connected to each other 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.e. 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.
  • a short axial bore 25 provided with a lubricating ippel 24 leads with a subsequent transverse bore 26 into the interior of the ball bearing 21.
  • This configuration results in very short relubrication channels for the ball bearing, so that dead, ie on the lubrication uninvolved fat is only present in very small amounts.
  • 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, especially downwards, cannot occur.
  • Ratio of length 1 to diameter d of the hinge pin 4 in the illustrated embodiment is approximately 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 on the one hand by the spring steel sheet 30 and the ring 25 against one
  • the clip body 5 which is made of spheroidal graphite cast iron or cast stainless steel, 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 clip, clip 6.
  • the arms 34, 35 extend from their attachment point on the main part of the clip body 5 obliquely upward to their 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 which forms the dome knife and an actuating arm 39. Furthermore, two webs 40, 41 are provided on the underside of the dome 6, which in a bore 42 define the axis of a stylus roller 43 (cf. FIG .1) record. Another hole 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 processed. 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.
  • bearing pin 50 5 holes are provided in two different positions in the clip body, so that the bearing pin 50 can either assume the position shown in full lines in Fig.1 or the position shown with dashed lines (50 '). The resulting different function is explained in detail with reference to FIGS. 9 to 11.
  • 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 such that the compression spring 52 holds the clip 6 in the open position under spring force. This situation is illustrated in Fig.11. If, for example, the compression spring 52 has a spring length of 19 mm (in the non-compressed state), the compression spring has the appropriate position 11, for example, has a length of 17 mm. In the position according to FIG. 11, 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 initially compressed even further, in which in Fig. 10 illustrated intermediate position has, for example, a spring length of 14 mm.
  • 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.
  • a function as a "groping clip” may also be desired.
  • the button roller 43 rests on the web 3 and is pulled outwards (ie in the direction of the arrow 55 according to FIG. 1) —with the tuft clip not yet fully closed. If the edge of the web 3 then moves under the button roller 43, the button roller 43 will fall below (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.
  • the dome 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 used as a basis, the compression spring has a spring length of 17 mm in the open position of the clapper (so that the clapper is also 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 in the closed position of the clip.
  • an additional spring washer 57 is provided in the exemplary embodiment according to FIG.
  • the rear travel path of the chain is limited 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, i.e. 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 on the mentioned wedge steel 62 can be screwed on 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. An ascent of the chain is reliably prevented in this way.
  • 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 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 remove 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 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. Due to the described manufacture of the ball body and ball ball, it is possible to replace the ball ball (while ensuring that the closing conditions remain exactly the same).
  • 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 for reasons of the service 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)
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
DE19853512417 DE3512417A1 (de) 1985-04-04 1985-04-04 Mit kluppen versehene spannkette
DE3512417 1985-04-04

Publications (3)

Publication Number Publication Date
EP0196424A2 true EP0196424A2 (fr) 1986-10-08
EP0196424A3 EP0196424A3 (en) 1987-03-25
EP0196424B1 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
DE3661029D1 (en) 1988-12-01
EP0196424B1 (fr) 1988-10-26
DE3512417A1 (de) 1986-10-16
US4706348A (en) 1987-11-17
EP0196424A3 (en) 1987-03-25

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