US3765290A - Tabulator punch - Google Patents

Tabulator punch Download PDF

Info

Publication number
US3765290A
US3765290A US00234718A US3765290DA US3765290A US 3765290 A US3765290 A US 3765290A US 00234718 A US00234718 A US 00234718A US 3765290D A US3765290D A US 3765290DA US 3765290 A US3765290 A US 3765290A
Authority
US
United States
Prior art keywords
disc
spindle
tabulator
notches
groove
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
Application number
US00234718A
Other languages
English (en)
Inventor
H Luhrig
K Taeffner
R Kreit
G Pohl
G Schmitz
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Application granted granted Critical
Publication of US3765290A publication Critical patent/US3765290A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04—Centering the work; Positioning the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B26F1/405—Travelling head presses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8737—With tool positioning means synchronized with cutting stroke
    • Y10T83/874—Straight line positioning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8745—Tool and anvil relatively positionable
    • Y10T83/8746—Straight line

Definitions

  • ABSTRACT A tabulator punch comprises upper and lower crossheads joined together by side plates and a punching head which is displaceably mounted in the upper crosshead and which is connected to a spindle nut mounted on a rotatable threaded spindle.
  • the spindle nut is rotatably mounted in the punching head and has an eccentric the rotation of which is adapted to reciprocate a punching blade and a disc at one end thereof.
  • Disc on the other hand is fixedly connected to the spindle nut and is provided on its outer periphery with a groove which is parallel to the spindle axis and adapted to engage in a guide rail which is also parallel to the spindle and which has spaced-apart notches therein the width of each of these notches being greater than the thickness of the disc.
  • the spindle nut is rotatably mounted in thepunching head and comprises an eccentric, the rotation of which is adapted to reciprocate punching blades.
  • both transverse displacement of the punching head and also thereciprocating movement required for punching are produced by one and the same spindle.
  • transverse displacement of the punching head is produced by a driving spindle.
  • An electrical limit switch which is fixed to the punching head and which is actuated by cams on the crosshead of the punch is adapted to interrupt the drive of the driving spindle and hence transverse displacement.
  • the cams are positioned in accordance with the required punching intervals.
  • punching is carried out by a pneumatically or hydraulically actuated cylinder.
  • the punching head is moved forward as described above to the next punching position.
  • transverse displacem ent between the cams takes place at high speed, the speed being reduced for location in the required punching position.
  • the object of the present invention is to provide a tabulator-punch which only requires one type of energy for transverse displacement and for punching and which eliminates the need for the trailing lines that are so troublesome in permanent operation.
  • this object is achieved in a tabulator punch of the kind described above by virtue of the fact that one end of the spindle nut which is driven by the spindle-comprises a disc which is fixedly connected to it and which is provided around its outer periphery with an axially parallel groove.
  • This groove engages in a guide rail which is directed parallel to the spindle and which is provided at regular intervals with s notches-.'-
  • the width of these notches is somewhat greater'than the thickness of the aforementioned disc. The intervals between the notches correspond to the required punching positions. If the spindle is set rotating, the guide rail prevents the spindle nut from rotating with it. In this way, the punching head is displaced longitudinally parallel to the guide rail.
  • thespindle nut then rotates with the spindle. Accordingly, the longitudinal movement of the punching head is interrupted. Through the rotation of the spindle nut,'the eccentric connected to'it presses a pushrod to which the punching blade is fixed downwards and thus carries out the required punching operation. After one full revolution of the spindle nut, the guide rail reengages in the groove of the disc and the punching head continues its longitudinal movement to the next notch inthe guide rail.
  • a further improvement in the invention relates to the shaping of the disc arranged on the spindle nut.
  • One of the end faces of the disc is reduced in thickness by an amount b after the groove, whilst on its other end face it comprises immediately adjacent the groove a short projection of the same thickness b.
  • the lengths of the reduction in thickness b and of the projection, as measured at the periphery of the disc, are adapted to one another in such a way that the disc does not jam in the notch during rotation.
  • FIG. 1 is a general view of a tabulator punch
  • FIG. 2 is a cross section of FIG. 1 on the line AB;
  • FIG. 3 is a partial longitudinal section of FIG. 2' on the line CD; l v FIGS. 4 to 9 individually illustrate the co-operation between the guide rail and the disc; and
  • FIG. 10 shows a detail of the guide rail.
  • Thetabulator shown in FIG. 1 consists basically of an upper crosshead 1 (front half removed) and a lower crosshead 2 which are fixedly joined together by side plates 3, 4.
  • a spindle 5 and a spline shaft 6 are rotatably mounted in the side plates 3, 4.
  • the spline shaft 6 is rotatable at a control grip 15 which has different stop positions.
  • the punching head 10 is pushed sideways until it is adjacent one of the two side plates 3, 4, where it leaves the guide rail 7 and instead engages with a short guide rail section 7* fixedly arranged on the side plates.
  • the spline shaft 6 is then freely rotatable. Electrical limit switches 28 prevent the punching head 10 from actually coming into contact with the side plates 3, 4.
  • FIG. 2 is a cross-section on the line AB of FIG. 1.
  • the punching head 10 is displaceably mounted in the upper crosshead 1.
  • FIG. 2 shows the spline shaft 6 carrying the guide rails 7 (in this case eight in number arranged around the periphery).
  • FIG. 3 (which is a longitudinal section of FIG. 2 on the line CD) shows the spindle and a spindle nut 9 rotatably mounted in the punching head 10 on two ball bearings (not shown). Between the two bearings, it is in the form of an eccentric 11 and, at one end, in the form of a disc 12. An axially parallel groove 13 is machined into the outer periphery disc 12. The guide rail 7 engages in the groove 13. If the spindle 5 is set rotating, the guide rail 7, engaging in the groove 13, prevents the spindle nut 9 from rotating with it. The spindle nut 9 and the punching head 10 are thus laterally displaced.
  • Notches 14 are provided in the guide rail 7 corresponding in position to the required punching interval, their width being slightly greater than the thickness of the disc 12.
  • the eccentric ll cooperates through a pressure roller 17 with a pushrod 19 which is displaceably mounted in the punching head 10 and which converts the rotating movement of the eccentric 11 into a reciprocating movement.
  • the pushrod 19 Under the effect of the compression spring 25, which is supported on a cover 26, the pushrod 19 is pressed upwards so that the pressure roller 17 is pressed permanently against the eccentric 11.
  • a blade holder 20 is fixed to the lower end of the pushrod 19 by means of a pin 23, the holder supporting a substantially rectangular punching blade 22 by means of screws 21.
  • Soft rubber 24 is arranged inside the substantially rectangular punching blade to protect the sharp edge 22a of blade 22 and act as a core ejector.
  • a suitable punching support 27 on which material 16 to be punched rests is fixed to the lower crosshead 2.
  • the spindle nut 9 rotates with the spindle 5 in the vicinity of a notch 14. In doing so, it carries out the required punching of the material 16 under the effect of the eccentric 11 through the pushrod 19 and the punching blade 22. After one revolution, the guide rail 7 re-engages in the groove 13 and the spindle nut 9 and punching head 10 are further laterally displaced.
  • the spindle 5 rotates at a constant speed throughout the entire operation, the rotational movement only being alternately transmitted to the spindle nut 9 and converted into a longitudinal movement through the cooperation of the disc 12 with the guide rail 7.
  • FIGS. 4 to 9 illustrate the cooperation between the guide rail 7 and the disc 12 in more detail in the form of individual illustrations which show in particular the special shape of the guide rail 7 in the zone in which the disc 12 enters the notches l4, and the special shape of the disc 12 in the zone adjacent the groove 13.
  • FIGS. 4 to 9 are each longitudinal sections through the guide rail 7 showing the disc 12. In the interests of clarity, only that part of the disc 12 of interest to the Specification has been shown in each case, the rest having been left out.
  • the lengths of the reduction in thickness and of the projection 29, as measured at the periphery of the disc 12, are adapted to one another in such a way that the disc 12 does not jam in the notch 14. That part of the end face 12a which has been reduced in thickness slides along the flank 7c of the guide rails 7 (pure rotation of the disc 12). When the bevel 12b comes into contact with the guide rail 7, the rotational movement is accompanied by a brief longitudinal movement equivalent in extent to b. The disc 12 has now entered fully into the notch 14, as shown in FIG. 7. It is guided with very little play between the flanks 7c, 7d of the notch 14.
  • the disc 12 then makes one complete revolution (during which the punching is carried out through the eccentric 11 of the spindle nut 9) until the projection 29 comes into contact with the guide rail 7.
  • the spindle nut 9 is again prevented from rotating and the punching head 10 continues its movement (cf. FIG. 9) to the next notch 14.
  • the spindle nut 9 only ever carries out one punching operation per notch 14.
  • a tabulator punch comprising upper and lower crossheads which are joined together by side plates, and a punching head which is displaceably mounted in the upper crosshead and which is connected to a spindle nut mounted on a rotatable threaded spindle, the spindle nut being rotatably mounted in the punching head and having an eccentric, the rotation of which is adapted to reciprocate a punching blade, and a disc at one end thereof, the disc being fixedly connected to the spindle nut and being provided on its outer periphery with a groove which is parallel to the spindle axis and which is adapted to engage in a guide rail which is also parallel to the spindle and which has spaced-apart notches therein, the width of each of the notches being greater than the thickness of the disc.
  • a tabulator punch according to claim 1 wherein a plurality of guide rails are fixed to a rotatably mounted shaft, each guide rail being provided with notches and being selectively engageable in the groove of the disc by rotation of the shaft.
  • a tabulator punch according to claim 1 wherein the corners of said notches contacted by said disc on entering and leaving said notches are relieved to help said disc enter and leave said notches.
  • a tabulator punch according to claim 8 wherein said offset has a foot adjacent said groove having a toe disposed ahead of its heel towards'said rail.
  • a tabulator punch according to claim 10 wherein the comers of said notches entered and left by said disc are relieved to facilitate said entrance and leaving.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US00234718A 1971-03-17 1972-03-15 Tabulator punch Expired - Lifetime US3765290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2112808A DE2112808C3 (de) 1971-03-17 1971-03-17 Tabulatorstanze

Publications (1)

Publication Number Publication Date
US3765290A true US3765290A (en) 1973-10-16

Family

ID=5801809

Family Applications (1)

Application Number Title Priority Date Filing Date
US00234718A Expired - Lifetime US3765290A (en) 1971-03-17 1972-03-15 Tabulator punch

Country Status (7)

Country Link
US (1) US3765290A (de)
BE (1) BE780406A (de)
CH (1) CH536697A (de)
DE (1) DE2112808C3 (de)
FR (1) FR2129762A5 (de)
GB (1) GB1365182A (de)
IT (1) IT952281B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150068379A1 (en) * 2011-02-10 2015-03-12 Hunkeler Ag Apparatus for punching moving material webs
WO2023122866A1 (zh) * 2021-12-27 2023-07-06 无锡微研股份有限公司 切刀下切深度调节机构
CN117001044A (zh) * 2023-10-07 2023-11-07 莱州市金盾机械有限公司 一种刹车盘加工自动打孔装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3196069B2 (ja) * 1996-10-25 2001-08-06 カール事務器株式会社 孔明け装置
DE102008011051A1 (de) * 2008-02-26 2009-08-27 Heidelberger Druckmaschinen Ag Bogenstanz- und -prägemaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1067461A (en) * 1910-10-03 1913-07-15 Arthur H Bradstreet Dieing-out machine.
US1629268A (en) * 1924-01-16 1927-05-17 Greenberg Harry Die press

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1067461A (en) * 1910-10-03 1913-07-15 Arthur H Bradstreet Dieing-out machine.
US1629268A (en) * 1924-01-16 1927-05-17 Greenberg Harry Die press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150068379A1 (en) * 2011-02-10 2015-03-12 Hunkeler Ag Apparatus for punching moving material webs
WO2023122866A1 (zh) * 2021-12-27 2023-07-06 无锡微研股份有限公司 切刀下切深度调节机构
CN117001044A (zh) * 2023-10-07 2023-11-07 莱州市金盾机械有限公司 一种刹车盘加工自动打孔装置
CN117001044B (zh) * 2023-10-07 2023-12-01 莱州市金盾机械有限公司 一种刹车盘加工自动打孔装置

Also Published As

Publication number Publication date
IT952281B (it) 1973-07-20
BE780406A (fr) 1972-09-11
DE2112808B2 (de) 1979-02-15
DE2112808A1 (de) 1972-09-28
FR2129762A5 (de) 1972-10-27
CH536697A (de) 1973-05-15
DE2112808C3 (de) 1979-10-11
GB1365182A (en) 1974-08-29

Similar Documents

Publication Publication Date Title
GB1189204A (en) Device for Cutting Sheet Material
US3765290A (en) Tabulator punch
US3897705A (en) Device for slitting sheet material
US3929047A (en) Longitudinal cutting and/or grooving machine for material webs in motion, particularly cardboard means
US4956987A (en) Rotary cutter for cutting a continuous corrugated strip
CN111085907B (zh) 一种手术刀打磨设备
US2109454A (en) Apparatus for cutting grooved rolls
CN109702081B (zh) 一种用于对钢板裁切、弯折一体化装置
US3838617A (en) Art of shearing a helical coil
US5003856A (en) Paper cutter
US2265265A (en) Threads cutting machine
US2250593A (en) Method and machine for cutting openings in metal ribbons or the like
US7096757B2 (en) Setting device for sawblades
US2786310A (en) Knife grinding machine
US3850494A (en) Rotary press
CN1307051C (zh) 用于印刷系统中的平压圆模切装置
US4015301A (en) Cut-off stock feeding device for an automatic high speed cold nut former
US4023452A (en) Feedstock cutting and feeding device for forming machines
US3146677A (en) Shaping and slotting machines
CN104926095B (zh) 一种玻璃珠切割设备
CN213195842U (zh) 一种剪板机
CN217095946U (zh) 一种降噪节能的液压闸式剪板机
CN219703146U (zh) 一种用于生产摩托车配件的数控冲床
EP0114799B1 (de) Vorrichtung zur Herstellung geprägter Abschnitte an einem kontinuierlich geförderten Bandmaterial
SU923670A1 (ru) Устройство для гибки замкнутых деталей 1