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Патент USA US3074296

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Jan. 22, 1963
M. V. ALTICE ETAL
3,074,286
TRAVERSE WINDING APPARATUS
Filed March 27, 1961
2 Sheets-Sheet 1
on
Jan- 22, 1963
M. v. ALTICE ETAL
3,074,286
TRAVERSE WINDING APPARATUS
Filed March 27, 1961
6.2
so
2 Sheets-Sheet 2
United States Patent 0
cc
IC€
Patented Jan. 22, 1953
2
3,074,286
Maryland "Virginia Altlce, New Castle, and Vincent
'
TRAVERSE WENDING APPARATUS
Howard Waldin and Warren Curlett Taylor, Wilming
ton, Del, assignors to E. I. du Pont de Nemours and
Company, Wilmington, Del. a corporation of Delaware
Filed Mm. 27, 1%1, Ser. No. 98,588
15 Claims. (Cl. 74-59)
a pair of end supports 10, 12, a rotatably driven barrel
cam 14, a bridge 16, elongated upper and lower cover
members 18, 28, and a yarn guide 22. A guide which
is particularly suited for use with the present assembly
has been disclosed by Altice and Waldin in copending ap
plication Serial No. 859,323, ?led December 14, 1959.
As best shown in FIG. 1, the end supports Ill, 12 have
stepped peripheral surfaces 24, 26, 28‘, a bearing hous
ing Sll and ‘a bore 32.
Barrel cam 14» has a shaft 34»
This invention relates generally to the traverse winding 10 which is journaled in a bearing 3d located in each bore 32.
of yarn at high speeds and more particularly to improve
Yarn guide 212' includes a follower portion which travels
ments in the cam and rail assembly of a winding appa
in ‘a continuous, generally helical cam groove 38 in the
ratus.
conventionally such an assembly includes a rotatably
driven barrel cam having a continuous groove in which
the follower portion of a reciprocating yarn guide travels.
surface of cam 14 and is constrained to a reciprocating
linear path of travel by rails 4;}, 42 which are bonded to
the aligned longitudinal edges of cover members 18, 2d.
The upper arcuate member 18 is slidable relative to
intermediate surfaces 26 in covering relationship to cam
The guide is constrained to a linear path of travel by a
pair of rails which are bolted or otherwise fastened to the
14. Member 18 overlaps and fits beneath flange portions
assembly frame in such a manner as to make it both
44 of bridge 16. it is urged downwardly into engagement
di?icult and time consuming to disassemble the rails for 20 with stops as by the action of hairpin springs 48 which
the replacement of a worn guide. There are similar
‘are fastened to the inner surf-ace of bridge 16 as at 58*.
problems involved in positioning and aligning the rails on
Each stop 46 is provided with a through passage 47 (PEG.
the frame. Optionally, the cam and rail assembly may
3) for a suitable fastener by means of which it is at
be provided with an independent cover or housing for
tached to an end support, in a longitudinally extending
protecting the equipment as well as its operator.
25 radial groove 51 (PEG. 2) provided therefor in outer
The most important object of the present invention is
cylindrical surface 24».
to provide for the quick and easy replacement of a worn
The lower cover member so also ?ts ‘against the inter
guide in a traverse winding apparatus.
mediate surfaces 26 on end supports lo, 12 and is held
Another important object of the invention is the pro
thereon by a pair of tabs so which are attached to the
vision of improvements in a cam and rail assembly by 30 end supports, in notches 64%, by suitable fasteners 62.
means of which the precise alignment of interrelated
Although ‘the fasteners 62 are threaded to an end support,
parts is facilitated.
tabs an overlap a portion ‘of cover member 28', within
A further object of ‘the invention is to provide guide
notches 66, and thus wedge the cover member into en
rails which are not only capable of extended use, but
gagement with stops as. The latter are radially aligned
also may be replaced easily.
35 and therefore function to locate and position rails 49, 42
These and other objectives are accomplished in a
with respect to each other and with respect to the rota
cam and rail assembly which includes a pair of spaced
tional axis of barrel cam lid. Thus, ‘the spaced, parallel
circular end supports on each of which a stop is peripher
and aligned relationship of the rails is assured.
ally mounted. A pair of opposed arcuate cover members
The assembly is mounted on cradles 52, 54» in which
are positioned against the stops, ‘the latter being radially 40 it is positioned by a pair of pins 56, 58 projecting from
aligned. The ?rst cover member is mounted for sliding
the housing 3h. Cradle 54 has been omitted from FIG.
movement relative to the peripheral surfaces of the sup
2 for purposes of clarity.
ports whereas the second cover member is ?xedly at
As shown in FIG. 3, the cover member 18 has a V
tached. Each member has a longitudinal edge to which
groove 68 machined in its lower longitudinal edge and
a formed rail is bonded. Means are provided to hold 45 has bonded thereto a formed rail insert 40 which, on its
the first cover member against the stops which thus func
exposed side, is generally complemental to the shape of
tion to maintain the rails in proper spaced relationship.
the opposed V-notches in stops 46. It should be noted
Other objectives will become apparent in the fol
that the stop 46 of FIG. 3 is that which would be located
lowing speci?cation wherein reference is made to the ac
at the left end of the assembly shown in FIG. 1.
companying drawings in which:
The rail inserts 40 may be formed from a suitable heat
50
FEGURE 1 is a side elevation of the instant cam and
treated, wear-resistant material such as Ohio die steel by
rail assembly, parts having been broken away and shown
drawing or machining. Uusally, they are specially drawn
in section to reveal details of the inner construction;
to the desired shape, heat treated and electrolytically
FIG. 2 is a fragmentary end view of the assembly
coated with copper. After a liquid solder has been
shown in FIG. 1;
55 brushed into groove 68 (FIG. 3), the parts are clamped
FIG. 3 is a perspective view of a stop shown in asso
together and brazed. When an insert has become worn
iation with the upper rail and cover member of FIG. 1;
or damaged, it is removed by tapping one end with a ham
FIG. 4 is a plan view of one of the hairpin springs
mer whereupon the insert may be peeled from its asso
shown in FlGS. l and 2;
ciated V-groove 68 and replaced as described above. In
FIG. 5 is a fragmentary perspective view of an alter 60
this respect, the upper and lower cover members are sub
nate embodiment of the stop shown in FIGS. l—3;
stantially identical.
FIG. 6 is a fragmentary plan view of an alternate em
Each hairpin spring 48 has a pair of legs projecting
bodiment of the means for holding the slidable cover
member against the stops;
from an eyelet 7t} and terminating in specially shaped feet
FIG. 9 is a longitudinal section of the cover lock shown
in FIG. 6.
The cam and rail assembly chosen for purposes of
illustration may be used, for example, in a winding ap
foot 72 of each of the springs 48 engages the upper edge
FlGS. 7 and 8 are bottom and side views of the cam 65 72 which engage the upper edge of a cover member 18
and urge the latter into engagement with stops 46. One
member shown in FIGS. 6 and 9; and
paratus of the type disclosed by Alzers in US. Patent No.
3,008,658 and includes generally as components thereof
of the cover member 18 shown in FIG. 1. As is appar
cut from FIG. 2, the other leg of each spring 48 is on the
opposite side of a vertical centerline. In this location,
they engage another cover member 18 (not shown) cor
responding to that which has been described herein.
3,074,286
3.
4
Thus, a single cam assembly functions as an integral-com
6. The cam and rail assembly of claim 4 wherein the
ponent of two separate back-to-back windups.
holding means is a cam.
. The, alternate embodiment shown in FIG. 5 consists of
7. In a traverse winding apparatus, a cam and rail
a cylindrical pin or stop 46' which has opposed V-notches
for the reception of rails, 40', 42*and which is press ?tted
into a radial opening provided-therefor in the surface 26
of each end support member 10, 12.
When used in combination with the other elements of
assembly comprising: a pair of spaced end supports hav
ing generally circular peripheral surfaces; a stop mount
ed at the periphery, of each support, said stops being
radially aligned; a ?rstelongated arcuate cover member
mounted for sliding movement relative to said surfaces
a suitable winding apparatus, the cam and rail assembly
and having a longitudinal edge adapted for engagement
disclosed herein operates conventionally in that guide 22
travels between rails 40, 42 and is reciprocated by the
with said stops; means in engagement with said ?rst
camming action of groove 38. After extended use at high
speeds, the guide and rails 40, 42 are subject to wear.
stops; and a second elongated arcuate cover member
bers 18, 20 with a spare.
positioning said rails.
member for releasably holding the latter against said
?xedly attached to said supports, said second member
having a longitudinal edge in engagement with said stops
If it is only the guide which requires replacement, this
may be accomplished quickly and easily by sliding cover 15 on the opposite side thereof from said ?rst member, said
edges having a reciprocating guide positioned therebe
member 18 upwardly against the bias of springs 48.
tween.
When a new guide is in place, springs 48 again urgecover
8. The cam and rail assembly of claim 7 wherein said
member 18 and rail 40 into the associated V-notches of
longitudinal edges have formed rails bonded thereto
stops 46. If a rail becomes worn or damaged, it is only
necessary to remove and replace one of the cover mem 20 and said stops have opposed notches for receiving and
This also can be done in a
9. A cam and rail assembly comprising: a support; a
barrel cam rotatably mounted on said support and hav
ing in its surface a continuous groove; a cam follower in
In the embodiment of FIGS. 6-9, upper cover member
18' overlaps and ?ts beneath bridge 16’. Cover mem 25 said groove; a pair of rails mounted on said support in
spaced parallelism with the. rotational axis of said cam,
ber 18' is provided with a slot 74 which receives a shoul~
at least one of said rails being slidably mounted for
der 76 of knurled cam 78. The latter has an eccentric
movement toward and away from the other rail; and,
bore 80 within which a stud 82 is freely rotatable. Stud
resilient means on said support in engagement with said
82 is ?xedly. attached to cover member 18' and is in
threaded engagement with a knurled lock nut 84. When 30 one rail for biasing the latter toward the other rail, said
rails having the follower positioned therebetween.
lock nut 84 is disengaged, cam 78 may be rotated to raise
10. In a traverse-winding apparatus a cam and rail
and lower cover member 18' with respect to stops 46
minimum of time in view, of the manner in which stops
46 function to align rails 40, 42 precisely.
(FIG. 1). When the cam lock’ is set, shoulder 76 en
gages cover member 18' within slot 74‘ and holds rail 40
against stops 46. Replacement of a cover member is
facilitated by removal of nut 84 and cam 78 from stud 82.
It is apparent that other changes and modi?cations
may be made in the disclosed cam and rail assembly with
out departing from the spirit of the present invention
which is therefore intended to be limited only by the scope
ofthe appended claims.
We claim:
.
.
1. Ina traverse winding apparatus, a cam and rail as
sembly comprising: a frame including a pair of spaced
assembly comprising: a pair of spaced end supports; a
?rst elongated cover member mounted for ‘sliding move
ment relative to said supports; a second elongated cover
member ?xedly attached to said supports, said members
having aligned parallel longitudinal edges, said edges each
having an elongated rail bonded thereto and having a
reciprocating guide positioned therebetween; and spring
means in engagement with said ?rst member for urging
the member and the rail thereon toward the rail on said
second member.
11. A cam and rail assembly comprising: av pair of
spaced end supports havingrgenerally circular peripheral
endsupports; a stop mounted on each, support; a cover 45 surfaces; a barrel cam rotatably mounted between said
supports and having in its surface a continuous groove;
member mounted on said supports for sliding movement
toward and away from said stops, said cover member hay:
a follower in said groove; a ?rst elongated arcuate cover
engagement with said stops; a second railrstructure ?xedly
member bridging the distance between and mounted for
sliding movement relative to said surfaces; a second elon
structure against said'stops, said structures having a re
the follower positioned therebetween.
inga ?rst rail structure bonded, thereto and adapted for
attached to said endsupports in engagement with said 50 gated arcuate cover member ?xedly attached to said sup
ports; spring means in engagement with said ?rst mem
stops on the opposite sidev thereof from said ?rst rail
ber for biasing it toward said second member, said mem
structure; and‘meanson said frame in engagement with
bers having aligned parallel longitudinal edges having
said cover member for releasably holding said ?rst rail
ciprocating guide positioned therebetween.
_
t
2. The cam and rail assembly of claimtl wherein the
holding means is a spring.
. .
3. The cam and rail assembly of claim 1 wherein, the
holding means is a cam.
,
4; In a traverse winding apparatus, a cam and rail as
sembly comprising: a’ frame, including, a pair of spaced
end supports; stop means on each support; a pair of elon
gated’ rail‘ structures spanning the distance between said
supports, oneof said structures being mounted onthe
supports for-sliding movement toward and away from the
12. The assembly of claim 11 wherein is provided a
stop on each end support, said stops being radially aligned
and having opposed notches for receiving said edges.
13. The assembly of claim 11 wherein each end sup
port has a stop projecting therefrom, said stops being
radially aligned and having opposed notches for receiving
said edges.
14. In a traverse winding apparatus, a cam and rail
assembly comprising: a frame including a pair of spaced
end supports and a bridge spanning the distance between
65 the supports; a stop mounted on each support; a ?rst elon-r
gated cover member mounted on said frame for sliding
stop means, the other structure being ?xedly attached‘to
movement relative to said supports; a second elongated
the supports in engagement with said stop means onthe
cover member ?xedly attached to said supports, said
opposite side thereof from said one structure; and means
members having aligned parallel longitudinal edges, said
on the frame in engagementwithsaid one structure for 70 edges each having an elongated rail bonded thereto and
'releasably holding the latter against said stop means, said
having a reciprocating guide positioned therebetween;
structures having a reciprocating guide positioned, there
between.
7
5. The cam and rail assembly of claim 4 wherein the
holding means is a spring.
*
and a cam movably mounted on said bridge, said cam
having a surface normally in engagement with said ?rst
cover member for releasably holding the rail thereon in
75 engagement with said stops. '
3,074,286
5
15. A cam and rail assembly comprising: a frame in
cluding a pair of spaced end supports having generally
circular peripheral surfaces; a barrel cam rotatably mount
ed between said supports and having in its surface a con
tinuous groove; a follower in said groove; a stop mount~
ed at the periphery of each support, said stops being radi
ally aligned; a ?rst elongated arcuate cover member
mounted for sliding movement relative to said surfaces
and having a longitudinal edge; cam means on said frame,
said cam means including a surface normally in engage 10
ment with said ?rst cover member for releasably holding
the longitudinal edge thereof against said stops; and a
second elongated arcuate cover member ?xedly attached
to said supports, said second member having a longitudi
nal edge in engagement with said stops on the opposite
side thereof from said ?rst member, said edges having
said follower positioned therebetween.
6
References Cited in the ?le of this patent
UNITED STATES PATENTS
84,107
459,039
1,657,181
2,216,990
2,225,623
2,251,838
2,573,415
Gerow ______________ __ Nov. 17, 1868
Foster ________________ __ Sept. 8,
Sande _______________ _._ Jan. 24,
Taylor ____________ __,.._.._ Oct. 8,
Crawford ____________ __ Dec. 24,
Baker ________________ __ Aug. 5,
Ebert ________________ __ Oct. 30,
1891
1928
1940
1940
1941
1951
FOREIGN PATENTS
219,099
Australia _____________ __ Dec. 2, 1958
OTHER REFERENCES
Mechanical Springs~Their Engineering and Design,
copyright 1944, received Pat. Off. Jan. 24, 1945, Div. 46
(only pages 53, 96 are pertinent).
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