GB822803A - Apparatus for winding or unwinding a length of flexible material - Google Patents
Apparatus for winding or unwinding a length of flexible materialInfo
- Publication number
- GB822803A GB822803A GB3589154A GB3589154A GB822803A GB 822803 A GB822803 A GB 822803A GB 3589154 A GB3589154 A GB 3589154A GB 3589154 A GB3589154 A GB 3589154A GB 822803 A GB822803 A GB 822803A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- drum
- motor
- pressure
- pipe
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
- B65H23/1955—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations and controlling web tension
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
822,803. Unwinding thread &c. KEELAVITE CO. Ltd. Nov. 30, 1955 [Dec. 10, 1954], No. 35891/54. Class 120(2) [Also in Groups XVI and XXIX] An apparatus for winding or unwinding a length of flexible material, e.g. a wire, thread, cord or the like, comprises a winding drum driven by a hydraulic motor, a pump connected to the motor, metering pumps driven by the winding drum and a second drum, a variable relief valve to control the pressure of hydraulic fluid to the inlet of the motor, a control pressure passage connecting the outlet of one metering pump with the inlet of the other, the pressure in this passage being maintained constant so as to control through the relief valve the pressure of fluid supplied to the motor, thereby maintaining constant tension in material extending between the second drum and the winding drum. As shown, a web 1 is wound on a drum 2 driven by a hydraulic motor 4 through a shaft 3 which drives a variable capacity pump 9. A constant speed motor 7 drives the shaft 8 of a feed roller or drum 5 co-operating with a roller 6, the shaft 8 driving a fixed capacity pump 10. The outlet of the pump 10 is connected by a pipe 13 to the inlet of the pump 9, while the outlet of the pump 9 is connected by a pipe 15 to the right hand end of a cylinder 16 and the inlet of the pump 10. The left hand end of the cylinder 16 is connected by a pipe 18 to the pipe 13. A piston 19 within the cylinder 16 is urged to the left by a spring 20. A rod 22 attached to the piston 19 actuates a lever 21 to vary the capacity of the pump 9 and is extended by a rack 23 engaging a pinion 24 on a shaft 25 carrying a cam 26. The cam 26 actuates a valve 27 which controls the supply pressure from a pump 28 to the motor 4. In operation, at the commencement of a winding operation, the pumps 9 and 10 have approximately the same capacities, such that the pressure in pipe 13 is small. As the diameter of the roll being wound on the drum 3 increases the speed of the drum 3 and therefore the pump 9 will decrease with respect to the drum 5, thereby increasing the pressure in the pipe 13 to move the piston 19 to the right and consequently rock lever 21 to increase the capacity of pump 9, thus reducing the pressure in the pipe 13. Movement of the piston 19 causes rotation of the cam 26 to close valve 27 to increase the torque transmitted by the motor 4. Thus, by choosing a suitable profile for the cam 26 the torque applied to the shaft 3 may be varied to maintain constant tension in the web 1. During unwinding, the motor 4 acts as a pump absorbing power at a pressure determined by the setting of the valve 27, thus exerting the appropriate braking torque on the shaft 3 in dependence of the speed ratio between the drum 2 and roller 5 to maintain constant web tension. In a modification, the motor 7 has a variable speed to permit variations in winding speed and the pump 10 may have a variable capacity controlled independently of the pressure sensitive device. Reference has been directed by the Comptroller to Specification 711,486 [Group XXIX].
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3589154A GB822803A (en) | 1954-12-10 | 1954-12-10 | Apparatus for winding or unwinding a length of flexible material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3589154A GB822803A (en) | 1954-12-10 | 1954-12-10 | Apparatus for winding or unwinding a length of flexible material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB822803A true GB822803A (en) | 1959-11-04 |
Family
ID=10382681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3589154A Expired GB822803A (en) | 1954-12-10 | 1954-12-10 | Apparatus for winding or unwinding a length of flexible material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB822803A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2156643A (en) * | 1984-03-31 | 1985-10-16 | Vernon Brian William Harvey | Irrigation or other machine having a rotatable drum carrying a hose or other flexible element wound thereon |
US4655399A (en) * | 1984-03-31 | 1987-04-07 | Vernon Harvey B W | Irrigation or other machine having a rotatable drum carrying a hose or other flexible element wound thereon |
GB2504768B (en) * | 2012-08-10 | 2017-02-08 | Harrison Spinks Components Ltd | Compression apparatus and method |
CN108584487A (en) * | 2018-04-11 | 2018-09-28 | 李政豫 | A kind of differential speed type spray painting cloth unreeling structure and its application method |
-
1954
- 1954-12-10 GB GB3589154A patent/GB822803A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2156643A (en) * | 1984-03-31 | 1985-10-16 | Vernon Brian William Harvey | Irrigation or other machine having a rotatable drum carrying a hose or other flexible element wound thereon |
US4655399A (en) * | 1984-03-31 | 1987-04-07 | Vernon Harvey B W | Irrigation or other machine having a rotatable drum carrying a hose or other flexible element wound thereon |
GB2504768B (en) * | 2012-08-10 | 2017-02-08 | Harrison Spinks Components Ltd | Compression apparatus and method |
CN108584487A (en) * | 2018-04-11 | 2018-09-28 | 李政豫 | A kind of differential speed type spray painting cloth unreeling structure and its application method |
CN108584487B (en) * | 2018-04-11 | 2019-11-12 | 瑞安市智造科技有限公司 | A kind of differential speed type spray painting cloth unreeling structure and its application method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2194078A (en) | Hold-down system | |
US4341335A (en) | Method and apparatus for controlling tension in a moving material | |
US1538887A (en) | Apparatus for controlling tension | |
US3322315A (en) | Apparatus for controlling the tension in a web | |
US3878999A (en) | Strip winding apparatus | |
US2164600A (en) | Hydraulic drive for winding apparatus | |
US3537660A (en) | Regulating system for winding devices for threads or threadlike structures | |
GB822803A (en) | Apparatus for winding or unwinding a length of flexible material | |
US2521413A (en) | Web tension control means | |
GB468779A (en) | Improvements in apparatus for producing a uniform tension in winding devices | |
US2278240A (en) | Coil unwinder | |
US3558074A (en) | Tension control for unwinding a web supply reel | |
US3043535A (en) | Hydraulic drive for winding machines | |
US2586123A (en) | Uniform strand tension device | |
GB1490293A (en) | Devices for regulating the tension of yarn as it is unwound from a bobbin | |
US2937819A (en) | Constant web tension unwinding mechanism | |
US2351264A (en) | Power transmission | |
US3804348A (en) | Regulated windup apparatus | |
GB1305647A (en) | ||
GB1284196A (en) | Web or tape winding machine | |
US3112086A (en) | Speed regulating equipment for a winding machine | |
GB1245598A (en) | Apparatus for use in conjunction with a web rewinding machine for controlling a regulator arranged for automatically regulating drive means for winding rollers of the rewinding machine | |
US3216279A (en) | Control mechanism for the take-up roll of a winding machine | |
GB438640A (en) | Improvements in and connected with web-winding mechanisms and antomatic controls therefor | |
GB1110013A (en) | Hydraulic drive of machine for winding and unwinding flexible filamentary bodies |