EP0356245A2 - Werkstoffschneidevorrichtung - Google Patents

Werkstoffschneidevorrichtung Download PDF

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Publication number
EP0356245A2
EP0356245A2 EP89308630A EP89308630A EP0356245A2 EP 0356245 A2 EP0356245 A2 EP 0356245A2 EP 89308630 A EP89308630 A EP 89308630A EP 89308630 A EP89308630 A EP 89308630A EP 0356245 A2 EP0356245 A2 EP 0356245A2
Authority
EP
European Patent Office
Prior art keywords
blade
cutting
drive arrangement
cut
drive
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.)
Ceased
Application number
EP89308630A
Other languages
English (en)
French (fr)
Other versions
EP0356245A3 (de
Inventor
Alan John Booton
Arthur Gatfield
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.)
KABEL TEKNIK Ltd
Original Assignee
KABEL TEKNIK 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 KABEL TEKNIK Ltd filed Critical KABEL TEKNIK Ltd
Publication of EP0356245A2 publication Critical patent/EP0356245A2/de
Publication of EP0356245A3 publication Critical patent/EP0356245A3/de
Ceased legal-status Critical Current

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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
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/086—Electric, magnetic, piezoelectric, electro-magnetic means
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
    • 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
    • B26D5/08—Means for actuating the cutting member to effect the cut

Definitions

  • This invention relates to material cutting apparatus and more particularly, but not exclusively, to the cutting of plastics material in strip form.
  • plastics materials take many forms and, for example, in the case of plastics tubing the physical nature of the tubing can vary over a wide range of factors including, for example, cross section, diameters, flexibility, hardness, resistance to cut and so on.
  • the material to be cut can be fed through a pair of aligned guides spaced apart by a distance sufficient to allow the operational passage of the cutter blade through the gap between the guides.
  • Stop means can be provided for locating the free end of the material to be cut when cooperating with the guides thereby to set the cut length.
  • the conventional arrangement is for the cutter blade to effect a cut once per revolution and for the blade to come to rest between each cutting revolution to provide a dwell time within which the feed of material to attain the next length to be cut is completed.
  • the material to be cut can be fed to the cutting zone by a pushing or puller arrangement as may be found convenient.
  • optimum cutting performance and quality is related to the rate of cut, that is the angular momentum of the cutter blade. Since the cutter blade is required to be of a relatively light weight and size, e.g., 50 mm. in length, 15mm. deep and some 1,5 mm. in blade thickness the angular cutting velocity needs to be high so as to achieve effective cutting momentum.
  • the drive arrangements for the cutter blade are such that the angular velocity (rate of rotation per unit of time) of the blade is arranged to be independent of the number of cutting revolutions of the blade for the same unit of time.
  • drive for a cutter blade is derived from a servo-type motor whose output is so controllable as to provide a drive output voltage/time relationship which produces a rapid initial acceleration from rest to a value which produces such angular velocity of the output shaft as to establish a pretermined torque (angular momentum) in the blade sufficient to cause the blade to effect a material cutting stroke and then on completion of a blade cutting stoke a rapid deceleration to bring the output shaft and thus the blade to a rest position.
  • the blade is mounted for rotational operation, and the rate of the rotation of the blade is arranged to be greater than the number of cuts effected in the same unit of time.
  • the blade is rotationally mounted directly to said output shaft or to said output shaft by way of a drive transmission which can be a fixed ratio drive or a variable ratio drive.
  • a drive transmission which can be a fixed ratio drive or a variable ratio drive.
  • the relationship between the angular velocity of the blade and the number of cutting strokes for the same unit of time is selectivley adjustable.
  • the drive arrangement is so mounted from a support means such that the cutter blade is overhangs means for collecting the cut material.
  • guide means are provided for the material to be cut, said guide means including a guide tube, sleeve, channel or the like located both upstream and downstream of the cutter blade whereby the adjacent end regions of the guides define a gap or space through which the blade is able operationally to pass during its cutting operation, the arrangement being such that the material to be cut is supported on both sides of the region of cut.
  • the machine shown therein comprises three major sections, a bottom section 1, a central section 2, and a top section 3.
  • the bottom section 1 which provides a generally rectangularly shaped housing 4 for control systems and equipment for effecting control and the requisite inter-relating of the operation of the various components of the apparatus.
  • the upper surface 5 of the housing 4 presents a flat table like surface.
  • the bottom section is mounted upon wheels 6, therebeing bracing means 7 for restraining the apparatus against movement during use.
  • the central section 2 as can be seen from the drawings is so shaped as to form, as seen in side view, with the bottom section a generally C-shape formation whereby the upper part 8 of the central section 2 overhangs the top surface 5 of the bottom section 1.
  • the central section 5 provides a housing and support for a servo-type electric motor 9 whose output shaft 10 mounts the cutter blade 11 of the apparatus.
  • a pair of guides 12 and 13 for supporting material to be cut is mounted to the structure of the upper part 8 of the central section 2.
  • the guides 12 and 13 each comprises a hollow tubular member through the central bore 14 of which the material 15 to be cut is arranged to be fed.
  • the guides 12 and 13 are so mounted that the facing ends 16 and 17 thereof are spaced apart to provide a gap 18 through which the cutter blade 11 is able operationally to pass during its cutting operation.
  • the control apparatus provided in the bottom section 1 is adapted to produce output control signals which allow control of the operation of the motor such that the output shaft thereof can be caused to rotate according to a predefined angular velocity profile which is represented by the graphical plot of Figure 4.
  • control system will enable the setting and adjustment of any parameters considered necessary to the control of effective cutting.
  • the profile indicates that the output shaft 10 of the motor 9 is rapidly accelerated from a rest condition (point A) to a cutting velocity (point B) which is maintained for the major part of a blade revolution (from point B to a point C). At the end of this period the output from the motor is reduced to zero as rapidly as possible (that is from point 6 to point D). It will be noted from the profile that a considerable portion, namely from point B to point C, of the rotation period for the shaft is at the required cutting speed whereby the angular momentum of the blade at the time of cutting is as high as possible.
  • the rate of rotation for the blade 11 is arranged to be at, for example, a relatively high speed as compared with conventional apparatus for cutting similar materials.
  • the rotational speed can be with a range of, for instance, 600 to 1000 revolutions per minute.
  • a particular range can be from 750 to 950 with a particular value of, for example, 900.
  • control arrangements are arranged to control the motor so that the number of operation cycles per unit time is considerably less than the rate of rotation.
  • the number of cycles per unit time can be in the range 300 to 700 with a particular range of 400 to 700.
  • the number of cutting cycles can be 500.
  • the upper section 4 houses a number of control switches or the like, the switches being exemplified by the switching and operational conditions indicator panel 19.
  • the panel 19 can indicate total number of cuts made, can indicate and enable setting of factors such as cutting rates, cutting speeds, cut lengths of materials being cut etc.
  • the cutting zone of the apparatus overhangs the bottom section top surface 5. This arrangement makes it possible for cut material collection means, conveyors or the like to be conveniently located below the cutting zone.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
EP19890308630 1988-08-26 1989-08-24 Werkstoffschneidevorrichtung Ceased EP0356245A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8820301 1988-08-26
GB888820301A GB8820301D0 (en) 1988-08-26 1988-08-26 Material cutting apparatus

Publications (2)

Publication Number Publication Date
EP0356245A2 true EP0356245A2 (de) 1990-02-28
EP0356245A3 EP0356245A3 (de) 1991-07-24

Family

ID=10642768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890308630 Ceased EP0356245A3 (de) 1988-08-26 1989-08-24 Werkstoffschneidevorrichtung

Country Status (2)

Country Link
EP (1) EP0356245A3 (de)
GB (2) GB8820301D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112140188A (zh) * 2020-09-22 2020-12-29 安徽国康体育用品有限公司 一种活塞式乒乓球拍胶皮割边装置
CN113447296A (zh) * 2021-06-24 2021-09-28 浙江大学 一种适用于椭球形水果的智能定量取样装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105665835A (zh) * 2016-03-29 2016-06-15 苏州市合叶精密机械有限公司 切割机床
CN105665836A (zh) * 2016-03-29 2016-06-15 苏州市合叶精密机械有限公司 适用范围广的切割机床

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114282A (en) * 1958-04-05 1963-12-17 Reifenhauser K G Apparatus for the transverse severance of continuously moving tubular structures
GB926188A (en) * 1959-11-17 1963-05-15 Preformed Line Products Co Wire cutting mechanism
GB1386596A (en) * 1971-05-27 1975-03-12 Squire Ltd Frederick Cutting apparatus
US4043238A (en) * 1976-04-21 1977-08-23 Sanders Associates, Inc. Cable cutter
SE406289B (sv) * 1976-11-17 1979-02-05 Morling C H V Anordning for avkapning av foretredesvis av strengsprutad plast bestaende stang- eller rorformigt gods
DE2748820C3 (de) * 1977-10-31 1981-08-06 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Quertrennen oder Querperforieren von Materialbahnen
US4503006A (en) * 1982-07-28 1985-03-05 Toska Co., Ltd. Method and apparatus for manufacturing tag pin assemblies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112140188A (zh) * 2020-09-22 2020-12-29 安徽国康体育用品有限公司 一种活塞式乒乓球拍胶皮割边装置
CN113447296A (zh) * 2021-06-24 2021-09-28 浙江大学 一种适用于椭球形水果的智能定量取样装置

Also Published As

Publication number Publication date
EP0356245A3 (de) 1991-07-24
GB2245210A (en) 1992-01-02
GB8919353D0 (en) 1989-10-11
GB8820301D0 (en) 1988-09-28
GB2245210B (en) 1993-04-28

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