GB1397071A - Web accumulators - Google Patents

Web accumulators

Info

Publication number
GB1397071A
GB1397071A GB930471A GB930471A GB1397071A GB 1397071 A GB1397071 A GB 1397071A GB 930471 A GB930471 A GB 930471A GB 930471 A GB930471 A GB 930471A GB 1397071 A GB1397071 A GB 1397071A
Authority
GB
United Kingdom
Prior art keywords
web
carriage
rollers
clutch
splicing
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
Application number
GB930471A
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.)
Masson Scott Thrissell Engineering Ltd
Original Assignee
Masson Scott Thrissell Engineering 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 Masson Scott Thrissell Engineering Ltd filed Critical Masson Scott Thrissell Engineering Ltd
Priority to GB930471A priority Critical patent/GB1397071A/en
Publication of GB1397071A publication Critical patent/GB1397071A/en
Expired legal-status Critical Current

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
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/14—Accumulating surplus web for advancing to machine while changing the web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/24—Advancing webs by looping or like devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/21—Accumulators
    • B65H2408/217—Accumulators of rollers type, e.g. with at least one fixed and one movable roller
    • B65H2408/2171—Accumulators of rollers type, e.g. with at least one fixed and one movable roller the position of the movable roller(s), i.e. the web loop, being positively actuated

Abstract

1397071 Feeding webs MASSON SCOTT THRISSELL ENG Ltd 13 July 1972 [13 April 1971] 9304/71 Heading B8R A web accumulator, e.g. in web splicing apparatus as described in U.K. Specification 1,199,922, comprises a first carriage C2 movable by drive means relative to a second carriage C1, each carriage having a plurality of rollers 47, 48, 49, 50 and 30, 31, 32, 33, 34 arranged in V formation, to provide a web path around all the rollers, with alternate rollers in the path being rollers of the first carriage and the intervening rollers being rollers of the second carriage. The drive means comprises a motor 62, the drive of which is transmitted through a gear-box 65, hollow shaft 69 and slipping clutch 68 to a chain 59 attached to the carriage C2 which runs on rollers in vertical rails. The torque required to slip the clutch is controlled by the pressure of air supplied to the clutch through the shaft 69, the pressure being adjusted by regulators (83), (88), Fig. 6 (not shown) connected in parallel. In operation, when a splice is desired to be made the pneumatic/electrical circuit of Fig. 6 is manually triggered. Firstly, a web supply reel (2), Fig. 1 (not shown), is pneumatically braked thereby increasing the tension in the web, which is continually fed to a web consuming device. The increased tension in the running web pulls the carriage C2 downwards causing the clutch to slip. At the same time a striker 104 on the carriage C2 actuates an electric switch which starts the motor 62, the latter being ineffective, however, due to the slipping clutch. The striker 104 also actuates a pneumatic valve which initiates the splicing operation. This may be inititated before the reel 2 has been brought to a standstill, web clamps being used to hold the web stationary in the splicing station. After splicing, the reel brakes and web clamps are released, the carriage C2 stops descending, and the clutch stops slipping as the replacement reel (6) accelerates to web feed speed. When clutch slip stops, the motor 62 is effective to raise the carriage C2 and replenish the web in the accumulator. Tension in the running web is controlled by a pneumatically adjustable roller (7).
GB930471A 1971-04-13 1971-04-13 Web accumulators Expired GB1397071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB930471A GB1397071A (en) 1971-04-13 1971-04-13 Web accumulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB930471A GB1397071A (en) 1971-04-13 1971-04-13 Web accumulators

Publications (1)

Publication Number Publication Date
GB1397071A true GB1397071A (en) 1975-06-11

Family

ID=9869400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB930471A Expired GB1397071A (en) 1971-04-13 1971-04-13 Web accumulators

Country Status (1)

Country Link
GB (1) GB1397071A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004099050A1 (en) * 2003-05-02 2004-11-18 The Procter & Gamble Company Web accumulator having limited torque disturbance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004099050A1 (en) * 2003-05-02 2004-11-18 The Procter & Gamble Company Web accumulator having limited torque disturbance

Similar Documents

Publication Publication Date Title
US5405099A (en) Web-slitting apparatus with driven pinch and windup rollers for varying web tension
GB1424018A (en) Winding machines
US1995722A (en) Web controlling mechanism
US1962029A (en) Supplying thread under extension, for example in covering machines
SE435483B (en) DEVICE FOR DISPOSAL OF VALVE BAGS EXISTING OVERLAPPING BAND ROLLS
JPS5855246A (en) Method and device for carrying paper roll for printing through change of paper seal
ES471497A1 (en) Wire measuring and feeding device
US1263419A (en) Paper-web-control device for reel-fed rotary printing-machines.
GB1397071A (en) Web accumulators
US2342203A (en) Device for feeding web material
US4182239A (en) Cable and hose marking machine
GB1370459A (en) Web-handling apparatus
GB1118716A (en) Apparatus for winding narrow strip material obtained by cutting a wider strip
GB1367236A (en) Web processing machine
GB944996A (en) A method and apparatus for winding web material
US1951182A (en) Four-drum winder
GB1442261A (en) Bobbin-supporting device
SE335094B (en)
US2629562A (en) Replacement roll accelerating mechanism for web splicing device
US2638281A (en) Web accelerating mechanism for web splicing devices
GB913878A (en) Improvements in web splicing apparatus
FR2340848A1 (en) Cableway drive control system - uses speed sensors at drive end and return drum to compensate for cable slip (BR 18.10.77)
GB1002133A (en) Marking apparatus
US3501108A (en) Auxiliary torque drive for tension brake system in high speed printing press
US3143959A (en) Marking apparatus

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees