EP0090933B1 - Verfahren und Vorrichtung zum Perforieren oder zum Perforieren und Abschneiden rundlauffähiger Hohlkörper - Google Patents

Verfahren und Vorrichtung zum Perforieren oder zum Perforieren und Abschneiden rundlauffähiger Hohlkörper Download PDF

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Publication number
EP0090933B1
EP0090933B1 EP83101558A EP83101558A EP0090933B1 EP 0090933 B1 EP0090933 B1 EP 0090933B1 EP 83101558 A EP83101558 A EP 83101558A EP 83101558 A EP83101558 A EP 83101558A EP 0090933 B1 EP0090933 B1 EP 0090933B1
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EP
European Patent Office
Prior art keywords
hollow body
needles
needle
perforated
hollow
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
EP83101558A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0090933A3 (en
EP0090933A2 (de
Inventor
Adalbert Engel
Christoph Engel
Uta-Maria Engel
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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
Application filed by Individual filed Critical Individual
Priority to AT83101558T priority Critical patent/ATE28051T1/de
Publication of EP0090933A2 publication Critical patent/EP0090933A2/de
Publication of EP0090933A3 publication Critical patent/EP0090933A3/de
Application granted granted Critical
Publication of EP0090933B1 publication Critical patent/EP0090933B1/de
Expired legal-status Critical Current

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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
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/161—Cutting rods or tubes transversely for obtaining more than one product at a time
    • 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
    • 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
    • B26F1/24—Perforating by needles or pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/954—Spool
    • 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
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16016—Processes
    • 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
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16426—Infeed means
    • Y10T82/16803—Rotatable tool[s] driven by contact with work
    • Y10T82/16819—Axially movable tool support
    • Y10T82/16836—Freely floating parallel to axis
    • Y10T82/16852—Freely floating parallel to axis with supplemental nonrotative tool
    • 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
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16426—Infeed means
    • Y10T82/16967—Infeed means with means to support and/or rotate work
    • 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
    • Y10T83/04—Processes
    • Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
    • Y10T83/041—By heating or cooling
    • Y10T83/0414—At localized area [e.g., line of separation]
    • 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
    • Y10T83/04—Processes
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • Y10T83/0453—By fluid application
    • 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
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/2068—Plural blasts directed against plural product pieces
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9314—Pointed perforators
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9382—Punching plus nonpunching tool

Definitions

  • the invention relates to methods for perforating or for perforating and cutting concentric or rotationally symmetrical hollow plastic bodies on their walls, in particular of winding carriers such.
  • the invention further relates to devices for performing the method.
  • DE-A-25 06 512 discloses a textile sleeve made of a thermoplastic material which is designed as a rotationally symmetrical hollow body and which can be deformed in the radial and also in the axial direction.
  • the textile winding can be subjected to a wet and / or heat treatment, perforations being provided in the wall of the textile sleeve for the permeability of the liquor.
  • the invention is therefore based on the object of providing a method of the type mentioned at the beginning, with which plastic hollow bodies can be provided in a simple manner quickly and economically and without residues with sufficiently large perforations.
  • a solution to this problem is that the hollow body to be perforated is rotated and that repeated puncturing is carried out with several needles at the locations of the hollow body to be perforated and the punctures are repeated so often and so quickly that the respective holes are repeatedly immersed Heat the tips of the needles by friction and make perforations out of small holes.
  • the hollow body to be perforated can be rotated by the rotation of the needle carrier (s) and the temporary form-locking needles piercing it.
  • the needle carrier s
  • the temporary form-locking needles piercing it.
  • a further development of the invention of considerable importance can consist in rotating a continuously or intermittently blown hollow body and cutting it off at its later end faces, preferably simultaneously with or after a perforation process.
  • hollow bodies in particular textile sleeves of a predetermined length, can be cut off from the respective blank, which can either be a longer tube or a bottle-shaped blown part.
  • the rotation of this blank can be used both for the above-described method for perforating and for cutting off.
  • Another solution to the problem mentioned at the outset can be a method of the generic type, which is characterized in that the hollow body to be perforated is advanced axially during perforation and is repeatedly punctured with needles at the locations of the hollow body to be perforated and that the punctures repeated so often and so quickly in succession that the tips of the needles, which plunge several times into the resulting perforations, heat themselves and make perforations out of small perforations. Instead of rotating the hollow body, the hollow body is moved axially in this case.
  • This method can be designed such that rotating rotating bodies with needles in the direction of movement of the Hollow body to be rotated about axes of rotation arranged transversely to the direction of movement of the hollow body, the circumferential circle extending through the tips of the needles immersed in the outer surface of the hollow body to be perforated and the speed being selected so that the tips of the needles repeatedly immersed in perforations are caused by friction be heated.
  • this solution too, this results in a kind of interlocking between the hollow body to be perforated and the needle carrier covered with the needles. In this case too, too little or too much heating can be avoided by the choice of the speed of the needle carrier.
  • a further independent solution to the above-mentioned object can consist in a method of the generic type in that the hollow body to be perforated is rolled during perforation over a stationary field with needles, so that needles are repeatedly pierced at the locations to be perforated, and by the unwinding speed, the punctures are repeated so often and so quickly that the tips of the needles, which penetrate the perforations several times, heat themselves by friction and produce the perforations.
  • the hollow body can gradually be pressed deeper onto the needles as it rolls off.
  • Claim 11 specifies a device with a device for holding and rotating a hollow body and with a rotating body as a tool carrier as a solution to this problem.
  • rotatable support rollers acting on its outer circumference can be provided.
  • the or the rotatable needle carrier can be pivotally mounted relative to the hollow body.
  • cross section of the needle can be profiled. This enables various desired forms of perforation to be created.
  • the support rollers and / or the needle carrier (s) can be adjustable to the diameter of the hollow body to be perforated and the needle carrier (s) can be radially adjustable against the interior of the hollow body during processing.
  • the device can be adapted to different dimensions of hollow bodies.
  • a further modification of the device according to the invention can consist in that the needle carrier is designed as a needle roller of preferably at least the length that corresponds to the length of the area of the hollow body to be perforated, optionally the length of the entire hollow body.
  • An embodiment of the device according to the invention of considerable importance can consist in that at least one knife blade or a cutting tool for separating a sleeve with a predetermined length from a blank is arranged in at least one intermediate space between the support rollers arranged on the circumference for the rotating hollow body. It is particularly expedient if a plurality of knives arranged at a distance from one another are provided for the separation of individual sleeves from pipes or blanks and if rings equipped with needles and arranged at a distance from one another are also provided for the rotary drive of the hollow bodies.
  • a plurality of needle rings and / or needle rollers can be provided for the rotary drive and the perforation. These can thus drive the hollow body like a gear, the needles being able to penetrate so deeply that the desired perforation is produced at the same time.
  • At least one of the support rollers can be connected to a drive. This can either support or replace a rotary drive based on needle wheels or needle rollers.
  • a further expedient embodiment of the device according to the invention which can also be used in the devices to be described subsequently, can consist in that, in addition to the needle roller or the like, preferably a channel for blowing air with openings directed against the needles and / or parallel to this is provided for the supply of a cooling liquid.
  • a cooling liquid can be provided with at least one brush with its bristles engaging at least in the area of the needle tips.
  • the support rollers can have an analog counter-profile.
  • textile sleeves according to DE-A-25 06 512 should be able to have a wavy surface in order to allow their surface to be flexible in the radial and axial directions.
  • the support rollers for hollow bodies having annularly arranged profiles can have zones with groups of stronger counter profiles and those with weaker counter profiles. This allows such a profiled textile sleeve to adapt to the profiling of the support rollers even with slight dimensional deviations, since, above all, the weaker counter-profiles do not fully engage in the sleeve profiling and thus give them some freedom of movement in the axial and / or radial direction.
  • Claim 32 characterizes a further device for solving the problem of creating an expedient and simple device for carrying out the method mentioned at the beginning.
  • the combination of features of claim 32 results in a device in which an axial movement of the hollow body is carried out during the perforation.
  • the axes of these needle wheels are arranged at right angles to the advance of the hollow body to be perforated and distributed around its circumference for a hollow body of any cross-sectional shape.
  • pinwheels can also produce perforations lying one behind the other in a helical shape.
  • a again modified device which is used to carry out the method according to claim 7, is characterized in that fixed, in particular in one plane, needle fields are provided for perforating rotationally symmetrical hollow bodies, via which the hollow bodies to be perforated can be unrolled. With sufficient rolling speed can also be achieved with this device that the tips of the needles repeatedly enter the initially small perforations and heat up by friction, so that gradually large perforations can be formed without perforation residues. The number of needles entering the same perforation is chosen so large that the perforation reaches the desired size.
  • Embodiments of this device in which the workpiece is rolled over a needle field are the subject of claims 35 to 39.
  • a device designated as a whole with 1 is primarily used for concentric or rotationally symmetrical hollow bodies or workpieces 2, z. B. textile sleeves to perforate.
  • the device 1 can, according to the following description, also be designed or set up to separate such workpieces 2 from continuously or intermittently blown hollow bodies and, under certain circumstances, also to cut them into several sleeves or rings. Overall, the device 1 described below thus allows the production of rings or sleeves and / or their perforation.
  • the device 1 essentially shows a magazine 3 from which the blanks are guided by a guide 4 of the actual processing to be described in more detail below.
  • the processing station is generally designated 5 in FIG. 1.
  • a slide 6 or the like is arranged, via which the finished workpieces 2 can be removed.
  • the workpieces 2 z. B. can reach a conveyor belt 7.
  • the processing station 5 is particularly important for the present invention, which is shown on an enlarged scale, particularly in FIGS. 3 and 4, for the case in which the workpieces 2 are to be perforated.
  • the device 1 and in particular its work station 5 have a holder for the workpiece 2 to be described in more detail and at least one (FIG. 3) or two (FIG. 4) with perforation needles 8 or the like.
  • Carrier body 9 occupied.
  • drive means are provided for repeatedly inserting the needles or styli 8 into the surface or wall of the hollow body 2.
  • rotatable support rollers or rings 10 are provided as holders for the workpiece 2, and the needle carrier 9 is also a rotating body, the circumference of which is occupied by the needles 8 or the like is and whose axis of rotation runs parallel to the axes of rotation of the support rollers 10 of the hollow body 2 to be perforated and also to the axis thereof. It can be seen in FIGS. 3 and 4 that in the position of use, the needle carrier 9 with its axis is so close to the workpiece that the needles pierce and perforate the wall of the hollow body 2 at least after several revolutions.
  • the needle rollers or rings 9 are pivotably mounted relative to the workpiece 2.
  • a swivel arm 11 which is fixed in the device 1 via a joint 12 and can be swiveled upwards and then downwards again according to the double arrow Pf 1 from the position shown in FIGS. 3 and 4. It is clear that in the up position of this swivel arm 11, a workpiece 2 can be ejected after its processing or a new workpiece can be inserted for processing.
  • the needles 8 can have any profile if the perforation is to have a specific shape.
  • the support rollers 10 and also the needle carrier (s) 9 are expediently adjustable to the diameter of the hollow body 2 to be perforated, the needle rollers being adaptable by pivoting the swivel arm 11, while the support rollers with their axes can be mounted so as to be displaceable in parallel. It is advantageous that the needle carriers in particular have a drive and the carrier rollers can run along empty. However, it is also possible that at least one of the support rollers 10 has a drive, not shown.
  • a gear 13 or the like can be seen on an end face of the needle carrier rollers 9, which belongs to the drive of these needle rollers 9 or forms the drive. With this gear 13 further wheels or a chain or the like can then cooperate.
  • the needle carrier 9 can be designed as a needle roller of approximately the length that corresponds to the length of the area of the workpiece 2 to be perforated, in particular that of the entire workpiece 2. It is also indicated in Fig. 2 that z. B. three workpieces can be created and processed at the same time, in particular if 2 knife blades 14 or the like are arranged in at least one space between the support rollers 10 arranged on the circumference for the rotating workpiece. Cutting tools for separating a sleeve with a predetermined length are arranged. 2, for example, three perforated sleeves 15 can be formed from a blank during processing. In this case, a plurality of knives 14 arranged at a distance from one another can be provided for the separation of individual sleeves 15 from pipes or the like.
  • needle rings and / or needle rollers 9 can be provided for the rotary drive and for the actual perforation, in particular for larger workpieces 2, these needle rings or rollers being distributed in the longitudinal direction one after the other and / or on the circumference of the workpiece could be.
  • the above-described device and in particular the work station 5 shown in FIGS. 3 and 4 allow a perforating process with heated needles 8 without these needles having to be connected to a heater. It is namely possible by the arrangement described above that repeated piercing or intervening at the points of the workpiece 2 to be perforated with one or more needles and that the punctures or interventions are repeated so often and so quickly that the several times in the heat the resulting perforations into the needle tips by the friction itself. Especially when perforating workpieces 2 made of thermoplastic plastic, the production of an actual perforation from an initially small puncture is supported and made possible at all by the heating or heating mentioned.
  • the hollow body 2 to be perforated is rotated in this perforation and the rotating body 9, which is filled with the needles 8, rotates in the opposite direction, so that a kind of toothing between the needles and the latter generated perforations is formed. It extends through the needle tip circumferential circle in the surface of the body to be perforated or even penetrates, the speed can be selected so that the needle tips repeatedly dipping into the same place generate the aforementioned frictional heat. It is not important that the same needle always hits the same hole, but it is only necessary that some needle always hits the same hole. As already mentioned, the rotating body 2 to be perforated can be rotated by the rotation of the needle carrier (s) 9 and the positive engagement that occurs in the process.
  • the self-heating needles 8 are expediently blown on and / or treated preparatively to adjust their temperature, in particular wetted with a coolant.
  • a liquid coolant can be applied, in particular brushed, by atomization or as dripping oil.
  • FIGS. 3 and 4 For this purpose, one can see in FIGS. 3 and 4, in addition to the respective needle roller 9 or the like. Perforating tool, axially parallel to this, a channel 19 for blowing air with openings 20 directed against the needles 8. However, through this channel 19 and the openings 20 coolant can also be supplied.
  • a brush 21 can be seen in each needle roller 9 for applying a liquid coolant to the needles 8, said brush 21 engaging with its bristles 22 in the area of at least the tips of the needles 8.
  • the needle rollers 9 can be pivoted away from the workpiece when it is processed and is to be ejected.
  • at least one ejector 23 is arranged opposite the attack of the needle rollers 9 and / or cutting knife 14 in the region of the workpiece 2.
  • Fig. 3 it is shown that a single ejector is sufficient for a smaller workpiece, while it is indicated in Fig. 4 that several ejectors 23 can be provided, especially for larger workpieces.
  • the design and operation of the ejector 23 can be seen particularly well in FIGS. 7 to 9. It is important that the ejector 23 is connected to the pivot bearing of the needle roller 9 or the like, or at least works synchronously in such a way that when the needle roller swings away 9 of the finished workpiece 2, this is acted upon by the ejector 23 between the support rollers 10 and is lifted out of the latter.
  • the ejector 23 is designed as a ruler or the like, which is mounted approximately parallel to the workpiece 2 and has an elastic narrow side 24 which acts on the workpiece 2 and extends over at least part of the workpiece length.
  • the ejector 23 in the exemplary embodiment has an elastic lip 25 which has a tube-shaped or loop-shaped cross section for adaptation to workpiece movements taking place during ejection. This makes it possible to gently eject even somewhat flexible workpieces.
  • 7 shows the ejector 23 initially in the rest position. When ejecting the ejector 23 is moved in the direction of arrow Pf 2, whereby the workpiece is raised. Once this has overcome the upper support roller, it rolls away laterally over the slide 6, which is facilitated and supported according to FIG. 9 by the flexible hollow lip 25.
  • the lip 25 can follow this sideways movement somewhat according to the arrow Pf 3 of the workpiece and prevent it from falling back into the space between the support rollers. It contributes to the fact that this elastic lip 25 is resiliently elastic.
  • FIGS. 3 and 4 A side view of a schematic representation of the cutting knife (s) 14 can also be seen in FIGS. 3 and 4. It is clear that these cutting knives 14 with their cutting edge 26 are preferably at an acute angle to the surface of the workpiece 2 and preferably gradually during the cutting cut deeper into the workpiece and retractable after cutting while rotating. This retraction movement with simultaneous rotation of the workpiece can bring about an easy release of the knife from the cut formed by it and remove any burr that may occur. To separate short sleeves 15 or the like.
  • Ring-shaped workpieces with knife blades 14 that are close to one another, these and in particular their cutting edges can be offset in height, so that they attack the workpiece at different times when it is inserted into the workpiece surface and do not deform it as far as possible and do not deform it generate great cutting resistance.
  • Another advantage of the pulling cuts produced by the knife blades 14 described and their cutting edges 26 and the still ongoing rotary movement of the workpieces when the knife blades are pulled out of the cut is that the cutting edges can sharpen the blades again and again, so that the cutting process to a certain extent is self-sharpening.
  • FIGS. 5 and 6 show that for perforating and / or severing workpieces 2 with a profiled surface, the support rollers 10 can have an analog counter-profile.
  • 5 shows an example in which a strongly profiled support roller 10 engages a workpiece with relatively wide shafts.
  • FIG. 6 shows a solution in which the support roller 10, which is also shown in FIG. 5, for annularly arranged profififications 27, workpieces 2 zones 28 and 29 with groups of has stronger counter-profiles 30 and those with weaker counter-profiles 31. It can be clearly seen how the stronger profiles 30 fully engage in the profiles 27 of the workpiece, while the weaker counter profiles 31 only partially protrude into the profiles 27, so that the workpiece can adapt well to the support roller in the event of inaccuracies.
  • FIGS. 11 and 12 A modified embodiment of a work station for perforating tubes 2 of any shape in cross section is shown schematically in FIGS. 11 and 12.
  • at least one needle wheel in the exemplary embodiment a plurality of needle wheels arranged at an angle to one another on the circumference of the hollow body 2 to be perforated, the axes of rotation of which are transverse is arranged to the feed direction of the workpiece 2 indicated by the arrow Pf 4.
  • These needle wheels 32 several of which are arranged one behind the other in such a way that their needles 8 can also repeatedly enter the same perforations, cause the workpiece feed if one or more of them are driven.
  • the axes of these needle wheels 32 are arranged at right angles to the feed of the workpiece 2 to be perforated and they are also distributed over the circumference of this workpiece 2 so that corresponding rows of perforations can occur.
  • a conveyor belt 34 running obliquely in the direction of advance against the needle field 33 is provided, which on the opposite side of the needle field 33 is frictionally and / or positively on the hollow bodies by means of projections, tips or the like 2 attacks and presses them gradually in the direction of advance as they roll onto the needles 8.
  • a carrier 35 of this conveyor belt 34 can be adjusted according to the double arrows Pf 7 with regard to its total distance from the needle field 33 and also with regard to its inclined position.
  • the needles 8 can preferably be cooled with a gastorm or liquid coolant through bores 37 of their carrier 38.
  • the conveyor belt 34 which is designed as a friction belt, can be pressed against the needle field 33 by means of a pressure plate 39, in order to ensure the desired unrolling of the workpieces despite the resistance in the perforating and / or cutting process.
  • the conveyor belt In particular for changing the inclined position of the conveyor belt, it can be pivotably mounted on an axis 40 running on one side about an axis 40 parallel to the needle plane. It can be seen that the carrier 35 also carries the knife 36.

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  • 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)
  • Treatment Of Fiber Materials (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Drilling And Boring (AREA)
  • Sawing (AREA)
EP83101558A 1982-04-01 1983-02-18 Verfahren und Vorrichtung zum Perforieren oder zum Perforieren und Abschneiden rundlauffähiger Hohlkörper Expired EP0090933B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101558T ATE28051T1 (de) 1982-04-01 1983-02-18 Verfahren und vorrichtung zum perforieren oder zum perforieren und abschneiden rundlauffaehiger hohlkoerper.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3212153 1982-04-01
DE3212153A DE3212153C2 (de) 1982-04-01 1982-04-01 Verfahren und Vorrichtung zum Perforieren und/oder Abschneiden runder Hohlkörper

Publications (3)

Publication Number Publication Date
EP0090933A2 EP0090933A2 (de) 1983-10-12
EP0090933A3 EP0090933A3 (en) 1984-11-07
EP0090933B1 true EP0090933B1 (de) 1987-07-01

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EP83101558A Expired EP0090933B1 (de) 1982-04-01 1983-02-18 Verfahren und Vorrichtung zum Perforieren oder zum Perforieren und Abschneiden rundlauffähiger Hohlkörper

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Country Link
US (1) US5019028A (cs)
EP (1) EP0090933B1 (cs)
JP (1) JPS58186599A (cs)
AT (1) ATE28051T1 (cs)
BR (1) BR8301581A (cs)
CA (1) CA1203157A (cs)
DE (2) DE3212153C2 (cs)
ZA (1) ZA832029B (cs)

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US5205479A (en) * 1991-11-15 1993-04-27 The Pillsbury Company Dough container with preweakened non-peel label
US5257560A (en) * 1992-09-14 1993-11-02 M. C. Molds, Inc. Trimmer for removing scraping from tops of plastic bottles
DE19544330C2 (de) * 1995-11-28 2000-07-27 Windmoeller & Hoelscher Nadelwalzenanordnung mit mehreren Nadelwalzen zur Perforierung einer durchlaufenden Materialbahn
DE29912657U1 (de) * 1999-07-27 1999-09-23 Brodbeck Maschinenbau GmbH + Co., 72555 Metzingen Vorrichtung zum Schneiden von Rohren
US20020139228A1 (en) * 2001-03-27 2002-10-03 Newell Operating Company Perforated roller cover and methods of manufacture thereof
US7204654B2 (en) * 2003-07-02 2007-04-17 Lexmark International, Inc. Perforation forming mechanism for use in an imaging apparatus
DE102004059394A1 (de) * 2004-12-09 2006-11-16 Kastriot Merlaku Vorrichtung zum Herstellen von Luft-Einlassporen oder Lufteinlass-Öffnungen/-Kanäle an einem Trinkhalm-Wand
KR100880904B1 (ko) 2007-08-01 2009-02-03 정태진 다관체 접합 배수부재 천공장치 및 천공방법
WO2016095150A1 (zh) * 2014-12-18 2016-06-23 惠州市吉瑞科技有限公司 一种黄腊管冲裁设备
CN108975051B (zh) * 2018-08-22 2023-11-14 深圳市沃尔核材股份有限公司 管材收线装置和方法
IT202000013819A1 (it) * 2020-06-10 2021-12-10 Ima Spa Macchina e procedimento per la produzione automatizzata di cannucce.
IT202000013822A1 (it) * 2020-06-10 2021-12-10 Ima Spa Macchina e procedimento per la produzione automatizzata di cannucce.

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Also Published As

Publication number Publication date
DE3212153C2 (de) 1984-09-13
US5019028A (en) 1991-05-28
DE3212153A1 (de) 1983-10-20
EP0090933A3 (en) 1984-11-07
CA1203157A (en) 1986-04-15
JPH03199B2 (cs) 1991-01-07
EP0090933A2 (de) 1983-10-12
BR8301581A (pt) 1983-12-06
ATE28051T1 (de) 1987-07-15
ZA832029B (en) 1983-12-28
DE3372268D1 (en) 1987-08-06
JPS58186599A (ja) 1983-10-31

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