EP0174100A2 - Nadeleinsatz und Fallernadelleiste - Google Patents

Nadeleinsatz und Fallernadelleiste Download PDF

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Publication number
EP0174100A2
EP0174100A2 EP85305547A EP85305547A EP0174100A2 EP 0174100 A2 EP0174100 A2 EP 0174100A2 EP 85305547 A EP85305547 A EP 85305547A EP 85305547 A EP85305547 A EP 85305547A EP 0174100 A2 EP0174100 A2 EP 0174100A2
Authority
EP
European Patent Office
Prior art keywords
insert
wall
bar
pinned
lip
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.)
Withdrawn
Application number
EP85305547A
Other languages
English (en)
French (fr)
Other versions
EP0174100A3 (de
Inventor
Norman Rushworth
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.)
Plastex Bradford Ltd
Original Assignee
Plastex Bradford Ltd
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 Plastex Bradford Ltd filed Critical Plastex Bradford Ltd
Publication of EP0174100A2 publication Critical patent/EP0174100A2/de
Publication of EP0174100A3 publication Critical patent/EP0174100A3/de
Withdrawn legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H5/00Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/02Gill boxes or other drafting machines employing fallers or like pinned bars
    • D01H5/12Details
    • D01H5/14Pinned bars

Definitions

  • the present invention relates to a pinned insert and to a faller including a bar on which a replaceable insert is mounted.
  • the invention is particularly applicable to gill boxes where the pins of the -insert attenuate or draft slivers of fibres.
  • Figure 1 is a perspective view of part of a known faller 10 which is used in a gill box.
  • the faller 10 includes a metal bar 12 into which is inserted a replaceable pinned insert 14.
  • the insert 14 is held in place on the bar 12 by applying adhesive between substantially the complete area of contact between the two parts; i.e. on the forward facing surface 16 of the rear wall 18, in the trough 20 at the bottom of the surface 16 and on the rearwardly facing surface 20 of the front wall 22.
  • the faller is arranged to be driven by a chain (not shown) so that when it moves in the direction of arrow 24, a series of fallers comb the sliver of fibres to attenuate or draft the sliver.
  • the force exerted on the pins 26 as they attenuate the sliver is resisted by the upper portion of the insert bearing against the rear wall 18 and by the lower portion of the insert bearing against the front wall 22.
  • the chain causes them to be brought rapidly out of the run of the slivers, rotated through half a revolution and returned back to the start of the attenuation run.
  • the fallers are spaced extremely close together and thus at the end of a run- in which they are drafting the fibres they fold over onto each other as they rotate before being returned. Accordingly, the extent of the faller in the forward and rearward direction is restricted, and this restriction is allowed for by terminating the forward wall at a relatively low height.
  • a further problem brought about by the use of the adhesive is that, if any adhesive is exposed, the sliver tends to become attached to that adhesive thus spoiling the run of the sliver and increasing the tendency of the machine to get a lap on. It will be appreciated that, in order that the adhesive can achieve its most effective bond with the insert, it is desirable to take the adhesive right up to the top of the front and rear walls and thus, inevitably, adhesive tends to be exposed at the top regions of those walls.
  • a pinned insert is adapted to engage or inter engage or mechanically engage with a wall of a bar on which the insert may be mounted to prevent or restrict movement of the. insert away from that wall.
  • the insert may be positively retained on the bar as compared to the previous arrangement where the retention was dependent upon the strength and uniformity of an adhesive bond.
  • the insert need not necessarily have adhesive present at the location where movement of the insert away from that wall is resisted and thus adhesive may not be prone to being exposed in that region with its attendant disadvantages.
  • the pinned insert may be arranged to engage with the wall adjacent to the pins of the insert whereby the moment of any force tending to move the insert away from that wall is kept to a minimum.
  • the pinned insert may include a lip or a hook which is arranged to engage with the wall of the bar to prevent or restrict movement of the insert away from that wall.
  • the lip or hook may extend in a direction opposite to that in which the pins extend from the insert.
  • the pinned insert may be arranged to lie against one side of a wall on the bar with the lip or hook extending over the top of the wall.
  • the lip or hook may be arranged to be generally flush with the other-side of that wall.
  • a faller includes a pinned insert and a bar, the insert being arranged to engage with a wall of the bar to prevent or restrict movement of the insert away from that wall.
  • the insert may be located on one side of the wall with a lip or hook of the insert extending over the edge of the wall.
  • the wall may include a groove along its upper edge in which the lip or hook lies with the lip or hook being generally flush with the other side of the wall.
  • the present invention also includes a faller including a pinned insert as previously specified.
  • Figure 2 is a perspective view of part of a faller.
  • like parts to those in Figure 1 have been given the same reference numeral prefixed by the number 1.
  • the faller 110 shown in Figure 2 is for use in a chain gill box as previously described in relation to Figure 1.
  • the pinned insert 114 is inserted into the bar 112. and held in place by adhesive extending around the trough 120. Thus there is little or no chance of adhesive leaking up over the edge of the front wall 122 or the rear wall 118.
  • a channel 130 extends along the upper andrearward edge of the wall 118.
  • the pinned insert 114 includes a hook or lip 132 extending downwardly along the complete length of the insert from a rearwardly extending wall 134, the lip being received within the channel 130 and the lip lying generally flush with the rear surface 136 of the rear wall 118.
  • the insert 114 is able to remain securely attached to the bar 112 upon application of a force to the pins in a direction opposite to that which occurs in drafting the sliver as the lip 132 abuts the channel 130. Furthermore, as the lip abuts with the channel in the region of the upper edge of the wall the force provided to oppose that almost immediately adjacent force being exerted by the slivers on the pins 126' does not have to oppose any great moment created by that force.
  • the channel 130 can be machined at the same time as the remainder of the bar is shaped.
  • existing bars can have the channel machined out of them and, if desired, the rear wall can also be reduced in height in order that the shape taken up by the faller comprising the insert and the bar can remain substantially the same.
  • the pins of the insert are held in place by a plastics body which is injection moulded around them.
  • the lip can be formed either by injection moulding or by machining the lip out of the the injection moulding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP85305547A 1984-08-24 1985-08-05 Nadeleinsatz und Fallernadelleiste Withdrawn EP0174100A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8421568 1984-08-24
GB848421568A GB8421568D0 (en) 1984-08-24 1984-08-24 Pinned insert

Publications (2)

Publication Number Publication Date
EP0174100A2 true EP0174100A2 (de) 1986-03-12
EP0174100A3 EP0174100A3 (de) 1986-03-19

Family

ID=10565812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85305547A Withdrawn EP0174100A3 (de) 1984-08-24 1985-08-05 Nadeleinsatz und Fallernadelleiste

Country Status (2)

Country Link
EP (1) EP0174100A3 (de)
GB (1) GB8421568D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481176A1 (de) * 1990-10-19 1992-04-22 Staedtler & Uhl Nadelstreifenträger
DE19839092A1 (de) * 1998-08-27 2000-03-09 Wacker Siltronic Halbleitermat Verfahren und Vorrichtung für die Wärmebehandlung von Halbleiterplatten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2832968A1 (de) * 1978-07-27 1980-02-07 Staedtler & Uhl Vorrichtung zum befestigen eines nadelstreifens am tragelement bei kettenstreckwerken, kaemm-maschinen u.dgl.
GB2084054B (en) * 1980-09-26 1984-01-11 Plastex Bradford Ltd Faller bars
DE3138350A1 (de) * 1981-09-26 1983-04-14 Alfred 8246 Langwiesen Weber Nadelstab fuer textilmaschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0481176A1 (de) * 1990-10-19 1992-04-22 Staedtler & Uhl Nadelstreifenträger
DE19839092A1 (de) * 1998-08-27 2000-03-09 Wacker Siltronic Halbleitermat Verfahren und Vorrichtung für die Wärmebehandlung von Halbleiterplatten

Also Published As

Publication number Publication date
EP0174100A3 (de) 1986-03-19
GB8421568D0 (en) 1984-09-26

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Inventor name: RUSHWORTH, NORMAN