EP0083164B1 - Drehende Stanzvorrichtung - Google Patents

Drehende Stanzvorrichtung Download PDF

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Publication number
EP0083164B1
EP0083164B1 EP19820306521 EP82306521A EP0083164B1 EP 0083164 B1 EP0083164 B1 EP 0083164B1 EP 19820306521 EP19820306521 EP 19820306521 EP 82306521 A EP82306521 A EP 82306521A EP 0083164 B1 EP0083164 B1 EP 0083164B1
Authority
EP
European Patent Office
Prior art keywords
tube
punch
spindle
tool holder
sheave
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
EP19820306521
Other languages
English (en)
French (fr)
Other versions
EP0083164A1 (de
Inventor
Manfred Arno Alfred Lupke
Gerd Paul Heinrich Lupke
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.)
Individual
Original Assignee
Individual
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23310592&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0083164(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0083164A1 publication Critical patent/EP0083164A1/de
Application granted granted Critical
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Classifications

    • 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
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B26F1/0046—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes by tools that follow a closed path around the tube

Definitions

  • the present invention relates to an apparatus for perforating a tube with a punch, and particularly for perforating thermoplastic tubes at spaced points.
  • the perforated tubes may be used in undeground drainage applications and they may be formed with annular or helical corrugations.
  • Punching apparatus of the type in question permits the production of perforations of various controlled shapes and sizes.
  • the known punching apparatus for example those disclosed in DE-A-1778094, DE-A-1779579 and DE-A-2262231, cannot work at high production speeds. This contrasts with apparatus for cutting circumferential slots in the tube, as with rotary cutters. Reference may be made, for example to US-A-3824886, US-A-3957386 and US-A-1480357 for apparatus of this type.
  • Slot cutting methods can be carried out at high speed, but cannot produce holes of varying shapes or small sizes. Hole size control can also be a problem when pipe dimensions are not perfectly uniform.
  • an apparatus for perforating a tube with a punch mounted on a revolving too holder, as the tube is advanced along a feed path characterized by means for revolving the punch about the tube in an epicycloidal path such that the punch perforates the tube at cusps of the epicycloidal path.
  • This punch may be completely rotary and continuous, so that it can be used at very high speeds.
  • Figure 1 illustrates a cross section of a tube 10 with a central axis 0.
  • the tube 10 is corrugated, having a wall thickness T in the troughs between the peaks 11.
  • the external radius of the tube at the troughs is A.
  • Apparatus for perforating the tube includes a tool holder in the form of a cylindrical spindle 12 with a portion 34 of radius B tangential to the tube 10 at the base of the illustrated trough.
  • a punch 14 is mounted on the portion 34 and projects radially a distance slightly greater than the tube wall thickness T.
  • the spindle 12 rotates about its axis X causing the punch 14 to rotate about the axis X.
  • the spindle is in turn caused to revolve in a circular path about the central axis 0 of the tube.
  • the ratio of the angular velocity of the toolholder about axis X to the angular velocity of axis X about axis 0 is A:B.
  • the radii A and B are equal so that the angular velocities of the punch 14 about the axis X- and of axis X about axis O are equal.
  • the epicycloidal path E is a cardoid with a single cusp.
  • the radii A and B may not be equal. They are preferably in a simple whole number ratio e.g. 1:2, 2:1 or 3:1. In any event, even if the radii A and B are not in a simple whole number ratio, the angular velocities are in the ratio A: B to produce the desired epicycloidal path.
  • the apparatus illustrated includes a housing 15 with end walls 16 and 17.
  • End wall 17 has a central circular opening 19 for receiving a pipe to be perforated.
  • the end wall 16 has a larger circular opening that is aligned with the opening 19 and has as counterbore on the outside.
  • a ball bearing 22 is fitted into the counterbore and is retained in position by an end cover 22a.
  • the bearing 22 carries the cylindrical sleeve of an adaptor 20.
  • the adaptor 20 also has a circular flange fastened to the side face of a sheave 29 by cap screws 29a.
  • the adaptor 20 and sheave 29 having a through bore 18 that is the same size as the opening 19 in the end wall 17 and aligns with that opening so that a tube 10 may pass into and out of the apparatus through the openings 18 and 19.
  • a stationery ring gear 21 is secured to the inside face of the wall 17 by bolts 21a.
  • the gear is aligned with the opening 19 so that the tube 10 can pass through the gear.
  • the hub of the gear 21 carries a ball bearing 23, which in turn supports a gear housing 25.
  • the housing is sealed to the gear 21 by seals 25a and 25b.
  • the gear housing 25 carries three shafts 26a parallel to the gear 21.
  • a pinion 26 is keyed to each of the shafts 26a and meshes with the teeth 24 of the ring gear 21.
  • Each shaft 26a carries a gear 26b.
  • Three idler gears 28 carried by the housing 25 mesh with the gears 26b.
  • Three drive bars 30 extend between the gear housing 25 and the sheave 29. The bars are secured to both the housing and the sheave so that these parts rotate as a unit.
  • each spindle shaft extends into the gear housing 25 and is keyed to a gear 27 meshing with a respective one of the idlers 28.
  • the other end of the spindle shaft is mounted on the sheave 29 by ball bearing 33A.
  • each of the spindles 35 has an enlarged cylindrical section 34 that serves as a tool holder.
  • This section 34 carries a helical rib 35 on its outer surface and a punch at the location indicated by the circle Y. The punch will be described in more detail in connection with Figures 4 and 5.
  • a drive shaft 32 extends through the housing 15, parallel to the tube 10. It is mounted in bearings 32a and 32b in the end walls 16 and 17 respectively.
  • the shaft 32 carries sheave 40 aligned with sheave 29. Sheave 40 drives sheave 29 through a series of V belts 31.
  • the punch is more clearly illustrated in Figures 4 and 5.
  • the body 34 of the spindle 33 has a stepped bore 37a aligned with the rib 35.
  • a cylindrical body 37 of the punch fits into the bore 37a and is held in place by a cap screw 38 extending into the bore 37a from the opposite side and threaded into a bore in the inner end of body 37.
  • the punch has a cutting head 36 with V shaped cutting edge for cutting rectangular slots in the tube.
  • the punch is shown in Figure 6 engaged with the wall of the tube 10 and piercing the tube in the desired manner.
  • Figure 7 illustrates an helically corrugated tube 10 with slots 48 produced by the punch.
  • the drive shaft 32 is driven from an external power source of any appropriate sort. This drives the sheave 40, the belts 31 and sheave 29. Rotation of sheave 29 acts through drive bar 30 to rotate the gear housing 25. As the sheave 29 and gear housing 25 rotate, the spindles 33 are revolved about the tube 10 extending through the housing.
  • the gear train consisting of stationary gear 21, pinions 26 and 26b, idlers 28 and gears 27 rotate the spindles 33 about their respective axes.
  • Appropriate selec, tion of the gear ratios insures that the ribs 35 of the spindles 33 will roll on the surface of the tube 10 without slipping, so that the punch will progress around the tube in an epicycloidal path.
  • the helical ribs 35 on the spindles 33 will engage with the corrugations of the corrugated tube to advance the tube through the punch.
  • the ribs 35 may be annular rather than helical. Helical ribs are required for a pipe with annular corrugations.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (7)

1. Vorrichtung zum Durchclochen einer Röhre (10) mit einem an rotierenden Werkzeughalter (12, 13) angebrachten Lochst2mpel (14), während die Röhre einer Vorschubstrecke entlang vorwärtsgeschoben wird, gekennzeichnet durch Mittel (21, 26b, 27) zum Drehen des Lochstampels um die Röhre (10) herum auf einer solchen epizyklischen Strecke (E), dass der Lochstempel die Röhre an Spitzpunkten (P) der epizyklischen Strecke durchlocht.
2. Vorrichtung nach Anspruch 1, gekennzeichnet durch einen Werkzeughalter (12, 33), an welchem der Lochstempel (14) angebracht ist, Mittel (33a) zum Anbringen des Werkzeugehalters zur Umdrehung um eine Achse (x) desselben und Mittel (29, 31, 40) zum Drehen der Achse (x) des Werkzeughalters um die Röhre (10) herum.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass es sich bei dem Werkzeughalter um eine Spindel (33) handelt, sus welcher der Lochstempel (14) radial herausragt.
4. Vorrichtung nach Anspruch 3, dadurch gekenzeichnet, dass die Spindel (33) um die Röhren-Oberfläche herumrollt.
5. Vorrichtung nach Anspruch 4, gekennzeichnet durch eine Mehrzahl von symmetrisch um die Röhre herum verteilten Spindeln (33).
6. Vorrichtung nach Anspruch 3, 4 oder 5, gekennzeichnet durch eine an der Spindel (33) angeordnete, spiralförmige rippe (35), welche mit der Röhre zum Vorwärtsschieben der Röhre durch die Vorrichtung hindurch in Eingriff gebracht werden kann.
7. Vorrichtung nach Anspruch 3, 4 oder 5, dadurch gekennzeichnet, dass die Spindel eine spiralförmige Rippe (35) aufweist und dass der Lochstempel (14) radial aus der Rippe herausragt.
EP19820306521 1981-12-28 1982-12-07 Drehende Stanzvorrichtung Expired EP0083164B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33517181A 1981-12-28 1981-12-28
US335171 1989-04-06

Publications (2)

Publication Number Publication Date
EP0083164A1 EP0083164A1 (de) 1983-07-06
EP0083164B1 true EP0083164B1 (de) 1986-02-05

Family

ID=23310592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820306521 Expired EP0083164B1 (de) 1981-12-28 1982-12-07 Drehende Stanzvorrichtung

Country Status (3)

Country Link
EP (1) EP0083164B1 (de)
CA (1) CA1187399A (de)
DE (1) DE3269027D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914779A1 (de) * 1989-05-05 1990-11-08 Rainer Isolierrohr Drossbach Verfahren und vorrichtung zum schneiden von schlitzen in rohrfoermige koerper

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4438203B2 (ja) * 2000-09-12 2010-03-24 株式会社デンソー パイプの穴開け方法及び装置
CN112092258A (zh) * 2020-08-04 2020-12-18 安徽中宏橡塑有限公司 一种再生橡胶加工用边角去除装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2230767C2 (de) * 1972-06-23 1974-08-22 Wilhelm 8730 Bad Kissingen Hegler Vorrichtung zum Einschneiden von Öffnungen in Rohre
DE2262231C3 (de) * 1972-12-20 1975-10-30 Ingrid M.A.C. Brussegem B/Bruessel Hermans (Belgien) Vorrichtung zum Einstanzen von Löchern in Kunststoffrohre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914779A1 (de) * 1989-05-05 1990-11-08 Rainer Isolierrohr Drossbach Verfahren und vorrichtung zum schneiden von schlitzen in rohrfoermige koerper

Also Published As

Publication number Publication date
CA1187399A (en) 1985-05-21
EP0083164A1 (de) 1983-07-06
DE3269027D1 (en) 1986-03-20

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