US3498554A - Textile spindle assembly - Google Patents
Textile spindle assembly Download PDFInfo
- Publication number
- US3498554A US3498554A US701249A US3498554DA US3498554A US 3498554 A US3498554 A US 3498554A US 701249 A US701249 A US 701249A US 3498554D A US3498554D A US 3498554DA US 3498554 A US3498554 A US 3498554A
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- US
- United States
- Prior art keywords
- bobbin
- spindle
- gravity
- center
- blade
- 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 - Lifetime
Links
- 230000020347 spindle assembly Effects 0.000 title description 8
- 239000004753 textile Substances 0.000 title description 8
- 230000005484 gravity Effects 0.000 description 26
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 3
- 230000035508 accumulation Effects 0.000 description 3
- 241001589086 Bellapiscis medius Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- UUTKICFRNVKFRG-WDSKDSINSA-N (4R)-3-[oxo-[(2S)-5-oxo-2-pyrrolidinyl]methyl]-4-thiazolidinecarboxylic acid Chemical compound OC(=O)[C@@H]1CSCN1C(=O)[C@H]1NC(=O)CC1 UUTKICFRNVKFRG-WDSKDSINSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 241000172331 Lepus sinensis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/04—Spindles
- D01H7/16—Arrangements for coupling bobbins or like to spindles
Definitions
- the spindle blade and bobbin are coupled together between the bobbin center of gravity and spindle center of gravity, as at the juncture of the bobbin butt and yam-receiving portion, the bobbin and spindle blade have two control portions to limit eccentricity, one adjacent the driving coupling, and one axially displaced therefrom near the end of the spindle blade.
- the field of the invention relates to textile spindle assemblies such as are employed in spinning frames and twisters.
- Objects of the invention are to provide for spindles having a center of gravity as described above, an improved spindle construction for driving a bobbin which will reduce vibration and noise and increase speed and load-carrying capacity; which will promote settling of the bobbin on the spindle if it should rise during operation; which avoids breaking and cutting of yarn and is relatively unaffected by accumulations of yarn on the whorl neck; and which can be easily and economically converted from existing spindle assemblies by simple machining operations.
- the rotating spindle structure and bobbin are arranged so that the bobbin is supported on the spindle intermediate, preferably approximately mid-way, the bobbin center of gravity and rotating spindle structure center of gravity.
- the bobbin can fulcrum about the support location to an extent limited by a control portion axially displaced from the supporting portion and closely spaced radially from the bobbin.
- the bobbin is of a conventional shape with a relatively thin yarn-receiving portion and a relatively heavy butt portion, and the spindle-supporting portion is coupled to said bobbin approximately at the juncture of said winding and butt portions; the spindle-control portion is tapered, and fits within a straight bore in the bobbin; and a second control portion is provided on the spindle adjacent the supporting "ice portion to limit eccentricity of the bobbin if it rises dur- 1ng operation.
- Bearings (not shown) within base 10 receive rotating spindle structure S which comprises an elongate blade 20 journalled in the bearings, and a whorl 22 press-fitted to the blade.
- a drive belt 24 imparts the requisite rotary motion to the whorl and thus also to blade 20.
- a bobbin B receiving a yarn mass Y, is coupled to the blade 20 as shown in FIG. 2 and hereafter to be described.
- the center of gravity of the rotating spindle structure S represented by line C-G-S, is axially beyond one end of the bobbin B.
- the illustrated bobbin B typically made of wood, is of standard type and comprises a relatively thin, upwardly tapered yarn-carrying portion 30 tipped with a brass shield 32. At the bottom, the bobbin terminates in an enlarged, relatively heavy butt 34 encircled by split steel rings 36.
- the bobbin When empty, the bobbin has its center of gravity at line C-G-B-E; as the bobbin fills with yarn, its center of gravity rises slightly, for example to line C-G-B-F, and therefore the bobbin center of gravity will lie within band C-GB.
- an axial longitudinal bore within bobbin B receives the blade 20 as follows:
- the blade 20 engages the bobbin B only with a short, upwardly tapered support portion 40 located axially intermediate the full bobbin center of gravity CG-BF and the spindle center of gravity C-G-S.
- support 40 be located axially, as illustrated, approximately mid-way between the empty bobbin center of gravity CGBE and the spindle center of gravity C-G-S.
- Conforming to support portion 40 on the blade is a tapered bore portion 50 located on the bobbin B approximately at the juncture of yam-carrying portion 30 and butt 34.
- the frictional coupling between support 40 and bore portion 50 is sufiicient to rotate the bobbin without slippage when the blade is driven.
- the blade tapers uniformly upwardly, for example at .006 inch per inch, as is customary. Its central portion 42 is received in the bobbin by a first straight bore 52 providing relatively wide clearance, for example .0l0 -.040 inch.
- the blade top or control portion 44 is received in the bobbin by a smaller diameter, second straight bore 54 providing less clearance and acting to limit pivoting movement of the bobbin about support 40. Since support 40 is of limited axial length, for example bobbin B can fulcrum thereabout to compensate for imbalance, but the arrangement between blade control portion 44 and bore 54 must be such as to prevent excessive beating of the bobbin during operation. In the present invention this is accomplished by tapering blade control portion 44 and placing it in straight bore 54 for a length L of, for example, an inch and a quarter, with a radial clearance of, for example, .002.005 inch at the bottom end of bore 54.
- blade 20 is pro vided with a short safety control portion 46 received by a bobbin bore 56 with a radial clearance typically of .003- .005 inch.
- This safety control does not interfere with fulcruming of the bobbin about support 40, but acts to prevent the bobbin from rotating too eccentrically if it should rise off support 40- during operation. If the bobbin rises, safety control 46 prevents it from cramping or locking in an eccentric position, and thus encourages the bobbin to return to proper engagement.
- Beneath safety control 4656, butt 32 is provided with a large bore forming an annular space 60 of wide clearance between bobbin B and spindle S into which whorl neck 26 fits. Yarn wrapping around the whorl neck can accumulate in this space to a substantial extent without interfering with the fit between bobbin and spindle, and without danger of being cut by any part of the spindle assembly.
- the above-described bobbin and spindle engagement ofiers a number of important advantages. First, and most important, it permits much higher speed operation. Second, the bobbin shows no tendency to rise from the spindle during operation. Third, the spindle can be economically reworked from existing top-drive, and other, spindles, and can produce higher speeds with existing low-rated load bearings and damping systems. As an example of these advantages, sample spindles reworked in accordance with the present invention, were tested and have run smoothly and stably with full bobbins from 5,000 to 23,000 rpm. Also, the bobbins have shown no tendency to rise during entire doff cycles, each of several hours duration. This represents a considerable advance in performance, achieved economically.
- Apparatus for supporting and rotating a bobbin having an axial bore said apparatus being of the type comprising:
- said spindle means adapted to be rotated about its longitudinal axis and receivable within the axial bore of said bobbin with the center of gravity of its rotating mass axially beyond one end of said bobbin, said spindle means comprising a whorl and a blade; said apparatus characterized by said blade having a supporting portion coupling said bobbin to said spindle means for rotation therewith and being of limited axial extent to allow said bobbin to fulcrum about said portion;
- said supporting portion being axially located intermediate the full bobbin center of gravity and the spindle means center of gravity;
- said blade having a control portion axially displaced from said supporting portion and being closely radially spaced from said bobbin for limiting pivoting thereof about said supporting portion.
- said blade further comprises a safety control portion adjacent said supporting portion and closely radially spaced from said bobbin, thereby to limit eccentricity of the bobbin if it should rise oif the supporting portion during operation.
- said bobbin is of the type having a relatively thin yarn-carrying portion and an enlarged relatively heavy butt portion at one end, characterized in that said supporting portion engages said bobbin approximately at the juncture of said yarn-carrying and butt portions.
- a textile bobbin having an axial bore for receiving therewithin elongated spindle means having the center of gravity of its rotating mass axially to one end of said bobbin, comprising: a yarn-carrying portion and an enlarged butt portion at the lower end thereof; said axil bore comprising a tappered coupling portion located axially intermediate the full bobbin center of gravity and the spindle means center of gravity; a first straight bore portion thereabove freely separated from said spindle means; a second straight bore portion above the first and closely radially spaced from said spindle means to limit pivoting of the bobbin; a third bore portion adjacent said coupling portion and closely radially spaced from said spindle means to limit eccentricity of said bobbin if it rises out of coupled engagement with said spindle means; and a fourth bore portion in said butt forming an annular space around said spindle means, thereby to permit yarn accumulation without interfering with engagement of the bobbin and spindle means.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
March 3, 1970 R; c. HARE 3,498,554
TEXTILE SPINDLE ASSEMBLY Filed Jan. 29, 1968 [Ea/'6 & V4 5 M M 221%,
United States Patent TEXTILE SPINDLE ASSEMBLY Richard C. Hare, Whitinsville, Mass., assignor to The George E. Clentimack Co., Inc., North Attleboro,
Mass, a corporation of Massachusetts Filed Jan. 29, 1968, Ser. No. 701,249 Int. Cl. B65h 75/30, 79/00 US. Cl. 24246.2 Claims ABSTRACT OF THE DISCLOSURE A high-speed textile spindle assembly having a bobbin supported and driven by a rotating spindle of the type having its center of gravity located axially beyond one end of the bobbin. The spindle blade and bobbin are coupled together between the bobbin center of gravity and spindle center of gravity, as at the juncture of the bobbin butt and yam-receiving portion, the bobbin and spindle blade have two control portions to limit eccentricity, one adjacent the driving coupling, and one axially displaced therefrom near the end of the spindle blade.
Background of the invention The field of the invention relates to textile spindle assemblies such as are employed in spinning frames and twisters.
One way to increase the production of spinning frames and twisters is to increase the speed at which bobbins, and spindles, are driven. As speeds rise, however, stress loads increase and vibration problems arise. At higher speeds, even complex damping techniques permit undesirable levels of noise and vibration and top drive bobbins tend to rise. Where the bobbin can be supported at the center of gravity of the rotating spindle structure, the expedients disclosed in my Patent No. 3,327,466 may profitably be used. However, in many instances spindles are designed so that the center of gravity of the rotating spindle structure lies axially beyond one end of the bobbin, and a different construction must be found to enable high speed operation at permissible levels of vibration.
Summary of the invention Objects of the invention are to provide for spindles having a center of gravity as described above, an improved spindle construction for driving a bobbin which will reduce vibration and noise and increase speed and load-carrying capacity; which will promote settling of the bobbin on the spindle if it should rise during operation; which avoids breaking and cutting of yarn and is relatively unaffected by accumulations of yarn on the whorl neck; and which can be easily and economically converted from existing spindle assemblies by simple machining operations.
According to the invention, the rotating spindle structure and bobbin are arranged so that the bobbin is supported on the spindle intermediate, preferably approximately mid-way, the bobbin center of gravity and rotating spindle structure center of gravity. The bobbin can fulcrum about the support location to an extent limited by a control portion axially displaced from the supporting portion and closely spaced radially from the bobbin.
In one highly practical embodiment, the bobbin is of a conventional shape with a relatively thin yarn-receiving portion and a relatively heavy butt portion, and the spindle-supporting portion is coupled to said bobbin approximately at the juncture of said winding and butt portions; the spindle-control portion is tapered, and fits within a straight bore in the bobbin; and a second control portion is provided on the spindle adjacent the supporting "ice portion to limit eccentricity of the bobbin if it rises dur- 1ng operation.
These and other novel features and advantages of the invention will be apparent from the following description of specific embodiments.
Description of the drawing spindle assembly pertinent to the present invention. The
assembly includes a conventional tubular base 10 with clamping nut 12 and flange 14 for mounting on a support 16. Bearings (not shown) within base 10 receive rotating spindle structure S which comprises an elongate blade 20 journalled in the bearings, and a whorl 22 press-fitted to the blade. A drive belt 24 imparts the requisite rotary motion to the whorl and thus also to blade 20. A bobbin B, receiving a yarn mass Y, is coupled to the blade 20 as shown in FIG. 2 and hereafter to be described. In accordance with the invention, the center of gravity of the rotating spindle structure S, represented by line C-G-S, is axially beyond one end of the bobbin B.
The illustrated bobbin B, typically made of wood, is of standard type and comprises a relatively thin, upwardly tapered yarn-carrying portion 30 tipped with a brass shield 32. At the bottom, the bobbin terminates in an enlarged, relatively heavy butt 34 encircled by split steel rings 36. When empty, the bobbin has its center of gravity at line C-G-B-E; as the bobbin fills with yarn, its center of gravity rises slightly, for example to line C-G-B-F, and therefore the bobbin center of gravity will lie within band C-GB.
In accordance with the invention, an axial longitudinal bore within bobbin B receives the blade 20 as follows: The blade 20 engages the bobbin B only with a short, upwardly tapered support portion 40 located axially intermediate the full bobbin center of gravity CG-BF and the spindle center of gravity C-G-S. Although it is discovered that enhanced speed capability results when support 40 lies anywhere within this range, it is preferable for best results that support 40 be located axially, as illustrated, approximately mid-way between the empty bobbin center of gravity CGBE and the spindle center of gravity C-G-S. Conforming to support portion 40 on the blade is a tapered bore portion 50 located on the bobbin B approximately at the juncture of yam-carrying portion 30 and butt 34. The frictional coupling between support 40 and bore portion 50 is sufiicient to rotate the bobbin without slippage when the blade is driven. By driving the bobbin directly from the blade which is the spindle member of greatest concentricity, the liklihood of bobbin eccentricity is reduced with a corresponding reduction in vibration.
Above support 40, the blade tapers uniformly upwardly, for example at .006 inch per inch, as is customary. Its central portion 42 is received in the bobbin by a first straight bore 52 providing relatively wide clearance, for example .0l0 -.040 inch. The blade top or control portion 44 is received in the bobbin by a smaller diameter, second straight bore 54 providing less clearance and acting to limit pivoting movement of the bobbin about support 40. Since support 40 is of limited axial length, for example bobbin B can fulcrum thereabout to compensate for imbalance, but the arrangement between blade control portion 44 and bore 54 must be such as to prevent excessive beating of the bobbin during operation. In the present invention this is accomplished by tapering blade control portion 44 and placing it in straight bore 54 for a length L of, for example, an inch and a quarter, with a radial clearance of, for example, .002.005 inch at the bottom end of bore 54.
Directly beneath support portion 40, blade 20 is pro vided with a short safety control portion 46 received by a bobbin bore 56 with a radial clearance typically of .003- .005 inch. This safety control does not interfere with fulcruming of the bobbin about support 40, but acts to prevent the bobbin from rotating too eccentrically if it should rise off support 40- during operation. If the bobbin rises, safety control 46 prevents it from cramping or locking in an eccentric position, and thus encourages the bobbin to return to proper engagement.
Beneath safety control 4656, butt 32 is provided with a large bore forming an annular space 60 of wide clearance between bobbin B and spindle S into which whorl neck 26 fits. Yarn wrapping around the whorl neck can accumulate in this space to a substantial extent without interfering with the fit between bobbin and spindle, and without danger of being cut by any part of the spindle assembly.
The above-described bobbin and spindle engagement ofiers a number of important advantages. First, and most important, it permits much higher speed operation. Second, the bobbin shows no tendency to rise from the spindle during operation. Third, the spindle can be economically reworked from existing top-drive, and other, spindles, and can produce higher speeds with existing low-rated load bearings and damping systems. As an example of these advantages, sample spindles reworked in accordance with the present invention, were tested and have run smoothly and stably with full bobbins from 5,000 to 23,000 rpm. Also, the bobbins have shown no tendency to rise during entire doff cycles, each of several hours duration. This represents a considerable advance in performance, achieved economically.
I claim:
1. Apparatus for supporting and rotating a bobbin having an axial bore, said apparatus being of the type comprising:
elongated spindle means adapted to be rotated about its longitudinal axis and receivable within the axial bore of said bobbin with the center of gravity of its rotating mass axially beyond one end of said bobbin, said spindle means comprising a whorl and a blade; said apparatus characterized by said blade having a supporting portion coupling said bobbin to said spindle means for rotation therewith and being of limited axial extent to allow said bobbin to fulcrum about said portion;
said supporting portion being axially located intermediate the full bobbin center of gravity and the spindle means center of gravity; and
said blade having a control portion axially displaced from said supporting portion and being closely radially spaced from said bobbin for limiting pivoting thereof about said supporting portion.
2. Apparatus according to claim 1 wherein said blade further comprises a safety control portion adjacent said supporting portion and closely radially spaced from said bobbin, thereby to limit eccentricity of the bobbin if it should rise oif the supporting portion during operation.
3. Apparatus according to claim 1 wherein said supporting portion is tapered and engages a conforming tapered portion in said bobbin axial bore.
4. Apparatus according to claim 1 wherein said blade control portion is tapered, and fits within a straight bore portion in said bobbin axial bore.
5. Apparatus according to claim 1 wherein said supporting portion is located approximately mid-way between the empty bobbin center of gravity and the spindle means center of gravity.
6. Apparatus according to claim 1 wherein said bobbin is of the type having a relatively thin yarn-carrying portion and an enlarged relatively heavy butt portion at one end, characterized in that said supporting portion engages said bobbin approximately at the juncture of said yarn-carrying and butt portions.
7. Apparatus according to claim 1 wherein said supporting portion is displaced axially from the lower end of the bobbin, and said blade is surrounded by an annular space between the lower end of the bobbin and the supporting portion to permit yarn accumulation.
8. A textile bobbin having an axial bore for receiving therewithin elongated spindle means having the center of gravity of its rotating mass axially to one end of said bobbin, comprising: a yarn-carrying portion and an enlarged butt portion at the lower end thereof; said axil bore comprising a tappered coupling portion located axially intermediate the full bobbin center of gravity and the spindle means center of gravity; a first straight bore portion thereabove freely separated from said spindle means; a second straight bore portion above the first and closely radially spaced from said spindle means to limit pivoting of the bobbin; a third bore portion adjacent said coupling portion and closely radially spaced from said spindle means to limit eccentricity of said bobbin if it rises out of coupled engagement with said spindle means; and a fourth bore portion in said butt forming an annular space around said spindle means, thereby to permit yarn accumulation without interfering with engagement of the bobbin and spindle means.
9. A textile bobbin according to claim 8 wherein said coupling portion is located approximately midway between the empty bobbin center of gravity and the spindle means center of gravity.
10. A textile bobbin according to claim 8 wherein said coupling portion is located approximately at the juncture of said yarn-carrying and butt portions.
References Cited UNITED STATES PATENTS 340,093 4/1886 Chapman 242---46.2 357,066 2/1887 Colby 242-462 458,431 8/1891 Sidebottom 24246.2 2,922,274 1/1960 Sacchini 57l30 3,190,580 6/1965 Guerin et al. 24246.2l 3,327,466 6/1967 Hare 242-462 XR STANLEY N. GILREATH, Primary Examiner W. H. SCHROEDER, Assistant Examiner US. Cl. X.R. 242ll8
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70124968A | 1968-01-29 | 1968-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3498554A true US3498554A (en) | 1970-03-03 |
Family
ID=24816591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US701249A Expired - Lifetime US3498554A (en) | 1968-01-29 | 1968-01-29 | Textile spindle assembly |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3498554A (en) |
| CA (1) | CA921343A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245799A (en) * | 1979-05-18 | 1981-01-20 | Rockwell International Corporation | Textile bobbin |
| US9228756B2 (en) | 2011-01-13 | 2016-01-05 | Quick-Sling, Llc | Support apparatus |
| USD1012986S1 (en) * | 2023-09-15 | 2024-01-30 | Yangjian Dai | Yarn holder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US340093A (en) * | 1886-04-20 | Spindle and bobbin | ||
| US357066A (en) * | 1887-02-01 | Administbatkix op john | ||
| US458431A (en) * | 1891-08-25 | Bottom | ||
| US2922274A (en) * | 1957-11-13 | 1960-01-26 | Curtiss Wright Corp | Textile spindles, particularly for top driving of filling quills |
| US3190580A (en) * | 1963-02-26 | 1965-06-22 | American Paper Tube | Thermally-isolated high-speed bobbins |
| US3327466A (en) * | 1965-10-11 | 1967-06-27 | Whitin Machine Works | Center-of-gravity spindle device |
-
1968
- 1968-01-29 US US701249A patent/US3498554A/en not_active Expired - Lifetime
-
1969
- 1969-01-24 CA CA041083A patent/CA921343A/en not_active Expired
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US340093A (en) * | 1886-04-20 | Spindle and bobbin | ||
| US357066A (en) * | 1887-02-01 | Administbatkix op john | ||
| US458431A (en) * | 1891-08-25 | Bottom | ||
| US2922274A (en) * | 1957-11-13 | 1960-01-26 | Curtiss Wright Corp | Textile spindles, particularly for top driving of filling quills |
| US3190580A (en) * | 1963-02-26 | 1965-06-22 | American Paper Tube | Thermally-isolated high-speed bobbins |
| US3327466A (en) * | 1965-10-11 | 1967-06-27 | Whitin Machine Works | Center-of-gravity spindle device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245799A (en) * | 1979-05-18 | 1981-01-20 | Rockwell International Corporation | Textile bobbin |
| US9228756B2 (en) | 2011-01-13 | 2016-01-05 | Quick-Sling, Llc | Support apparatus |
| USD1012986S1 (en) * | 2023-09-15 | 2024-01-30 | Yangjian Dai | Yarn holder |
Also Published As
| Publication number | Publication date |
|---|---|
| CA921343A (en) | 1973-02-20 |
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