GB1339937A - Device for cutting photographic materials - Google Patents

Device for cutting photographic materials

Info

Publication number
GB1339937A
GB1339937A GB1339937DA GB1339937A GB 1339937 A GB1339937 A GB 1339937A GB 1339937D A GB1339937D A GB 1339937DA GB 1339937 A GB1339937 A GB 1339937A
Authority
GB
United Kingdom
Prior art keywords
web
brake
cutting
cutter
feed
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
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.)
Pentacon GmbH Foto und Feinwerktechnik
Original Assignee
Pentacon Dresden VEB
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 Pentacon Dresden VEB filed Critical Pentacon Dresden VEB
Publication of GB1339937A publication Critical patent/GB1339937A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/32—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier with the record carrier formed by the work itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material
    • G03D15/04—Cutting; Splicing
    • G03D15/043—Cutting or splicing of filmstrips
    • G03D15/046—Automatic cutting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Advancing Webs (AREA)

Abstract

1339937 Cutting apparatus PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 24 Sept 1971 44588/71 Heading B4B A device for cutting photographic materials supplied in the form of a web comprises a pair of feed rollers 4, 5 and a cutting unit 27, 28, 29 driven by separate electric motors Mol, Mo2 respectively, a brake device 18, 19 for acting on the web controlled together with the cutting unit by means of marks on the web adapted to be scanned by photo-electric means Tal, Ta2, the feed rollers being driven continuously and their speed and the duration of the braking being so selected that a loop is formed during braking between the pair of feed rollers and the brake which is shorter than the length of one feed step. The feed roller 4 is driven by the motor Mol via a worm drive 6, 7 and a change gear device 8, 9, 10, 11, the roller 5 being urged by spring pressure against the roller 4. The cutting unit includes an oscillatable cutter 29 having cutting edges adapted to co-operate with fixed cutters 27, 28. The cutter 29 is actuated by the electric motor Mo2 via a crank-and-rod drive 31, 32. The braking device includes a brake pad 18 connected to an electromagnet M and adapted to clamp the web against a fixed member 19. The photo-electric sensing means Tal, Ta2 are mounted on a plate 24 which may be pivoted about a pin 25 by a handle 26 in order to adjust the position of the sensing means. In operation, the motor Mol is energized so as to rotate the feed rollers 4, 5 thereby feeding the web over a guide 17 towards the cutting unit. When a mark (a), Fig. 5 (not shown), is sensed by the photo-electric device Tal the brake is energized to clamp the web and the motor Mo2 energized to actuate the cutter 29 so that it co-operates with the cutter 27 to sever the web. During the cutting cycle while the brake is actuated the feed rollers continue to feed the web so that a loop is formed which causes the web to press against a resilient band 20. Upon completion of the cutting cycle the brake is de-energized thereby allowing the web to jump forward rapidly under the action of the loaded band 20. The web then continues to be fed by the rollers 4, 5 until the next mark is sensed when the operation is repeated. When it is desired to effect a double cut during one cycle, the brake is actuated twice thereby allowing the cutter 29 to co-operate with the lower cutter 28. In a modification, the resilient band may be replaced by a pivoted plate, (39), Fig. 3 (not shown), or a pivoted bar (41), Fig. 4 (not shown).
GB1339937D 1971-09-24 1971-09-24 Device for cutting photographic materials Expired GB1339937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4458871 1971-09-24

Publications (1)

Publication Number Publication Date
GB1339937A true GB1339937A (en) 1973-12-05

Family

ID=10433974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1339937D Expired GB1339937A (en) 1971-09-24 1971-09-24 Device for cutting photographic materials

Country Status (1)

Country Link
GB (1) GB1339937A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353274A (en) * 1979-08-21 1982-10-12 Sharp Kabushiki Kaisha Roll paper feeding and cutting system
DE3212199A1 (en) * 1981-04-01 1982-10-28 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa CUTTER FOR PHOTOGRAPHIC PAPER
CN107385857A (en) * 2017-08-25 2017-11-24 广东溢达纺织有限公司 Automatically a bar equipment is cut

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353274A (en) * 1979-08-21 1982-10-12 Sharp Kabushiki Kaisha Roll paper feeding and cutting system
DE3212199A1 (en) * 1981-04-01 1982-10-28 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa CUTTER FOR PHOTOGRAPHIC PAPER
US4417808A (en) * 1981-04-01 1983-11-29 Fuji Photo Film Co., Ltd. Photographic paper cutter
CN107385857A (en) * 2017-08-25 2017-11-24 广东溢达纺织有限公司 Automatically a bar equipment is cut

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Legal Events

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