DE2116006A1 - Rotary knife cutter - for pvc drinking straws with one straight and one angled edge - Google Patents

Rotary knife cutter - for pvc drinking straws with one straight and one angled edge

Info

Publication number
DE2116006A1
DE2116006A1 DE19712116006 DE2116006A DE2116006A1 DE 2116006 A1 DE2116006 A1 DE 2116006A1 DE 19712116006 DE19712116006 DE 19712116006 DE 2116006 A DE2116006 A DE 2116006A DE 2116006 A1 DE2116006 A1 DE 2116006A1
Authority
DE
Germany
Prior art keywords
sleeve
knife
cutting device
straight
drinking straws
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.)
Pending
Application number
DE19712116006
Other languages
German (de)
Inventor
Karl Partschins; Wörndle Paul Naturns; Forcher (Italien)
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.)
FORCHER K
Original Assignee
FORCHER K
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 FORCHER K filed Critical FORCHER K
Priority to DE19712116006 priority Critical patent/DE2116006A1/en
Priority to IT2376671A priority patent/IT983124B/en
Publication of DE2116006A1 publication Critical patent/DE2116006A1/en
Pending 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
    • 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
    • B26D1/56—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • 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
    • B26D1/56—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • 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

Abstract

Two knife blades are arranged at similar intervals from each other on a sleeve surrounding a drive shaft with one blade arranged in the direction of the sleeve axis and the second blade arranged at an angle to the sleeve axis.

Description

schneidevorrichtung für Kunststoff-Strangpressgut Die Erfindung betrifft eine Schneidevorrichtung für Kunststoff-Strangpressgut, insbesondere für dünne Kunststofrröhren, die als Trinkhalme Verwendung finden. Cutting device for extruded plastic material The invention relates to a cutting device for plastic extrusions, especially for thin plastic tubes, which are used as drinking straws.

Es ist bekannt, stranggepresste Kunststoffröhren durch Schneiden mit einem rotierenden Messer in gleichlange Stücke aufzuteilen, die z.B. als Trinkhalme verwendet werden. Ein rotierendes Messer für diesen Zweck besteht gewöhnlich aua zwei Messerklingen, die einander gegenüber auf einer IIiilse angeordnet sind, die auf einer Welle befestigt ist. Zwei solcher Messer werden im Abstand voneinander derart angeordnet, dass jeweils zwei Messerklingen im Gegensinn zueinander rotieren und sich derart an einer Stelle treffen, dass ein glatter gerader Schnitt erzielt wird Es ist auch bekannt, die rotierenden messer schräg zur Förderricktung des Kunststoff-Strangpreasguts anzuordnen, wodurch schräg zur Achse des Strangpressguts abgeschnittene Teile, wie Trinkhalme, erzeugt werden.It is known to cut extruded plastic tubing with it Using a rotating knife to divide it into pieces of equal length, which can be used, for example, as drinking straws be used. A rotating knife for this purpose usually also consists of two knife blades, which are arranged opposite each other on a IIiilse, the is mounted on a shaft. Two such knives are spaced apart arranged in such a way that two knife blades rotate in opposite directions to each other and meet in such a way that a smooth straight cut is achieved It is also known that the rotating knife is inclined to the conveying direction of the plastic strands to be arranged, whereby cut obliquely to the axis of the extruded material Parts, like drinking straws.

Es wurde gefunden, dass es mittels solcher Messer auch möglich ist, gunststoff-Strangpressgut, insbesondere dünne Kunststoffröhren derart zu schneiden, dass die eine Schnittebene gerade, d.h. senkrecht zur Röhrenachse und die andere quer hierzu verläuft.It was found that by means of such knives it is also possible extruded plastic material, in particular to cut thin plastic tubes in such a way that that one cutting plane is straight, i.e. perpendicular to the tube axis and the other runs transversely to this.

Die Aufgabe wird erfindungsgenäss mit einer Schneidevorrichtung für Kunststoff-Strangspressgut, wobei zwei Messerklingen im gleichen Abstand voneinander auf einer auf eine Welle anzubringenden Hülse angeordnet sind, dadurch gelöst, dass dia eine Messerklinge in wichtung der Hülsenachse und die zweite schräg zur Hülsenachsenrichtung auf der Hülse angeordnet ist.The task is according to the invention with a cutting device for Plastic extruded material, with two knife blades equidistant from one another are arranged on a sleeve to be mounted on a shaft, solved in that dia one knife blade in weighting of the case axis and the second at an angle to the case axis direction is arranged on the sleeve.

Vorzugsweise sind die Messerklingen verstellbar auf Halterungen befestigt, die parallel bzw. schräg zur Huisenachse auf der Hülse verlaufen. Eine der Messerklingen besitst vorzugsweise einen Anschlag, der das Einhaken auf das Gegenmesser verhindert und einen sicheren und besseren Schnitt ermöglicht.The knife blades are preferably adjustable on brackets, which run parallel or at an angle to the sleeve axis on the sleeve. One of the knife blades preferably has a stop that prevents hooking on the counter knife and enables a safer and better cut.

Wenigstens eine Messerklinge, die parallel bzw. schräg sur Hülsenachse angeordnet ist, vorzugsweise die mit Anschlag, sollte federnd äuf der Halterung befestigt sein, wosu Hal.teschrauben mit einer Druckfeder vorgesehen sind. Die das Gegenmesser bildende Messerklinge, die parallel bzw. schräg -zur Hilisenachse angeordnet ist, ist vorzugsweise höhenverstellbar, damit die Schnittiefe der Klingenabnützung angepasst werden kann.At least one knife blade that is parallel or at an angle to the sleeve axis is arranged, preferably the one with a stop, should be resilient on the bracket be attached, wosu retaining screws are provided with a compression spring. The the Knife blade forming counter knife, which is arranged parallel or at an angle to the Hilisenachse is, is preferably adjustable in height, so that the cutting depth of the blade wear can be customized.

Die Erfindung wird durch die beigefügten Zeichnungen näher erläutert.The invention is explained in more detail by means of the accompanying drawings.

Es zeigen: Fig. 1 eine schematische Darstellung einer Vorrichtung zur Herstellung von Kunststoff-Strangpressgut fAr Trinkhalme unter Verwendung von zwei Schneidevorrichtungen u Fig. 2 eine erfindungsgemässe Schneidevorrichtung an perspektivischer Darstellung.1 shows a schematic representation of a device to the Production of extruded plastic material for drinking straws using two Cutting devices u FIG. 2 shows a cutting device according to the invention in perspective Depiction.

Gemäss Fig. 1 wird ein Yunststoffrohr 8 als Endlosrohr aus der Ringdüse 7 eie Strangpresse ausgepresst, auf einem Förderband 9 transpo @iert und über ein Rollenpaar aus einer angetriebenen Rolle 10 und einer Führungerolle 11 in ein Führungsrohr 12 geführt. Beim Austritt aus dem Fhrungsrohr 11 wird das Kunststoffrohr durch die Schneidevorrichtung geführt und in Stücke zerteilt.According to FIG. 1, a plastic tube 8 is made as an endless tube from the ring nozzle 7 eie extrusion press, transported on a conveyor belt 9 and over a Pair of rollers consisting of a driven roller 10 and a guide roller 11 in a guide tube 12 led. When exiting the guide tube 11, the plastic tube is through the Cutting device guided and cut into pieces.

Die Schneidevorrichtung besteht gemäss Fig. 2 aus einer auf einer angetriebenen Welle 1 sitzenden Hülse 2, wobei auf einer Halterung 3 bzw. 3a Messerklingen 4 bzw. 4a angeordnet sind. Die Halterung 3 ißt schräg zur Achsrichtung der Hülse 2 auf dieser angeschweisst, während die Halterung 3a in Achsrichtung der Hülse verläuft Die Messerklinge 4a, die zum Schneiden des Strangguts quer zur Földerrichtung dient und einen geraden senkrecht zur Kunststoffröhre 8 verlaufenden Schnitt ergibt, ist mit Schraubenfedern 5 waagerecht verschiebbar auf der Halterung 3a angebracht und besitzt einen Anschlag zur Verhinderung des Einhakens des Gegenmessers auf der Messerschneide.According to FIG. 2, the cutting device consists of one on one driven shaft 1 seated sleeve 2, with knife blades on a holder 3 or 3a 4 and 4a are arranged. The holder 3 eats obliquely to the axial direction of the sleeve 2 welded onto this, while the holder 3a extends in the axial direction of the sleeve The knife blade 4a, which is used to cut the strand material transversely to the conveying direction and results in a straight section running perpendicular to the plastic tube 8 with helical springs 5 horizontally displaceable mounted on the bracket 3a and has a stop to prevent the counter knife from hooking onto the knife edge.

Die schräg zur Hülsenachse angeordnete Messerklinge 4 ist senkrecht mit Schrauben 6 verstellbar an der Halterung 3 befestigt. Sie ergibt einen Schnitt, der schräg zur Förder richtung der Kunststoffröhre 8 verläuft.The knife blade 4, which is arranged obliquely to the sleeve axis, is perpendicular adjustable with screws 6 attached to the bracket 3. It gives a cut which runs obliquely to the conveying direction of the plastic tube 8.

Gemäss Fig. 1 zwei solcher Schneidevorrichtungen vorgesehen, die gegenläufig rotieren, so dass jeweils zwei Messer in Eingriff mit dem Strangpressgur kommen.According to FIG. 1, two such cutting devices are provided, which run in opposite directions rotate so that two knives come into engagement with the extruded belt.

Es ist aber auch möglich, nur eine Schneidevorrichtung oben vorzusehen und das Strangpressgut auf einer festen, elastischen, gegebenenfallls rotierenden Unterlage, z.B.But it is also possible to provide only one cutting device at the top and the extruded material on a fixed, elastic, possibly rotating Underlay, e.g.

Rolle zu führen, die unterhalb der Scneidevorrichtung vorgesehen ist0 Mit Hilfe der erfindungsgemößen Schneidevorrichtung werden Strangpressgutstücke abgeschnitten, die an einer Seite einen senkrecht zur Achse verlaufenden Schnitt zeigen, während die andere Seite schräg zur Achse abgeschnitten wird.To guide the roll provided below the cutting device0 With the aid of the cutting device according to the invention, extruded goods are made cut off, the cut perpendicular to the axis on one side while the other side is cut off at an angle to the axis.

Es können mit dieser Schneidevorrichtung entsprechend geschnittene Trinkhalme aus Kunststoff, z.B. Polyvinylchlorid, erzeugt werden, die wegen den einseitig schrägen Schnittes einen erhöhten Gebrauchswert haben, wei) sie sich besser an den Boden des Getränkebehälters, wie einer Flasche oder eines Glases, mit der schrägen Schnittfläche anlegen.It can be cut accordingly with this cutting device Drinking straws made of plastic, e.g. polyvinyl chloride, are produced because of the inclined cut on one side have an increased utility value, they know better to the bottom of the beverage container, such as a bottle or glass, with the Create inclined cut surface.

Claims (4)

P a t e n t a n s p r ü c h eP a t e n t a n s p r ü c h e 1. Schneidevorrichtung für Kunststoff-Strangpressgut, wobei zwei Messerklingen im gleichen Abstand voneinander auf einer auf eine Welle anzubringenden Hülse angeordnet sind, dadurch gekennzeichnet, dass die eine Messerklinge (4a) in Richtung der Hülsenachse und die zweite (4) schräg zur Hülsenachsenrichtung auf der Hülse (2) angeordnet ist.1. Cutting device for plastic extrusions, with two knife blades arranged at the same distance from each other on a sleeve to be mounted on a shaft are, characterized in that the one knife blade (4a) in the direction of the sleeve axis and the second (4) arranged obliquely to the sleeve axis direction on the sleeve (2) is. 2. Schneidevorrichtung nach Anspruch 1, dadurch g e -k e fl n.z e i c h n e t , dass die Messerklingen (4, 4a) verstellbar auf Halterungen (3, 3a) angeordnet sind, die parallel bzw. schräg sur Hülsenachse auf der Hülse (2) verlaufen. 2. Cutting device according to claim 1, characterized in that g e -k e fl n.z e i c h n e t that the knife blades (4, 4a) are adjustable on brackets (3, 3a) are arranged, which run parallel or obliquely on the sleeve axis on the sleeve (2). 3. Schneidevorrichtung nach Anspruch 1 bis 2, dadurch g e k e n n s e i c h n e t , dass die eine Messerklinge (4a) federnd auf der entsprechenden Halterung (3a) befestigt ist und einen Anschlag besitzt 3. Cutting device according to claim 1 to 2, characterized in that g e k e n n it is clear that one knife blade (4a) is resilient on the corresponding one Bracket (3a) is attached and has a stop 4. Schneidevorrichtung nach Anspruch 3, dadurch g e -k e n n s e i c h n e t , dass die mit dem Anschlag versehene Messerklinge (4a) seitlich justierbar und die andere Messerklinge (4) höhenverstellbar ist.4. Cutting device after Claim 3, characterized in that the one provided with the stop Knife blade (4a) laterally adjustable and the other knife blade (4) adjustable in height is.
DE19712116006 1971-04-01 1971-04-01 Rotary knife cutter - for pvc drinking straws with one straight and one angled edge Pending DE2116006A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19712116006 DE2116006A1 (en) 1971-04-01 1971-04-01 Rotary knife cutter - for pvc drinking straws with one straight and one angled edge
IT2376671A IT983124B (en) 1971-04-01 1971-04-27 CUTTING DEVICE FOR EXTRUDED SYNTHETIC MATERIAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712116006 DE2116006A1 (en) 1971-04-01 1971-04-01 Rotary knife cutter - for pvc drinking straws with one straight and one angled edge

Publications (1)

Publication Number Publication Date
DE2116006A1 true DE2116006A1 (en) 1972-10-05

Family

ID=5803620

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712116006 Pending DE2116006A1 (en) 1971-04-01 1971-04-01 Rotary knife cutter - for pvc drinking straws with one straight and one angled edge

Country Status (2)

Country Link
DE (1) DE2116006A1 (en)
IT (1) IT983124B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488183A1 (en) * 1980-08-06 1982-02-12 Soyez Freres Sa Appts. for cutting and stacking plastic straws with a bevelled end - comprising series of radial and oblique blades and high-speed stacking device
US20110167973A1 (en) * 2010-01-12 2011-07-14 Wadsworth Lewis W Apparatus and Method for Cutting Tubular Members
CN108274718A (en) * 2018-03-30 2018-07-13 漳州杰安塑料有限公司 A kind of automatic high-efficiency production equipment of suction pipe
CN114523730A (en) * 2022-03-12 2022-05-24 嘉善吸易欧纸业科技有限公司 Sharp mouth forming equipment for producing paper suction tube

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488183A1 (en) * 1980-08-06 1982-02-12 Soyez Freres Sa Appts. for cutting and stacking plastic straws with a bevelled end - comprising series of radial and oblique blades and high-speed stacking device
US20110167973A1 (en) * 2010-01-12 2011-07-14 Wadsworth Lewis W Apparatus and Method for Cutting Tubular Members
WO2011088069A1 (en) * 2010-01-12 2011-07-21 Wadsworth Lewis W Apparatus and method for cutting tubular members
US9016178B2 (en) 2010-01-12 2015-04-28 Lewis W. Wadsworth Apparatus and method for cutting tubular members
US20150224708A1 (en) * 2010-01-12 2015-08-13 Lewis W. Wadsworth Apparatus and Method for Cutting Tubular Members
US9950472B2 (en) * 2010-01-12 2018-04-24 Lewis W. Wadsworth Apparatus and method for cutting tubular members
CN108274718A (en) * 2018-03-30 2018-07-13 漳州杰安塑料有限公司 A kind of automatic high-efficiency production equipment of suction pipe
CN108274718B (en) * 2018-03-30 2024-01-12 漳州杰安塑料有限公司 Automatic efficient production equipment for straws
CN114523730A (en) * 2022-03-12 2022-05-24 嘉善吸易欧纸业科技有限公司 Sharp mouth forming equipment for producing paper suction tube
CN114523730B (en) * 2022-03-12 2023-09-22 嘉善吸易欧纸业科技有限公司 Sharp-mouth forming equipment for producing paper straw

Also Published As

Publication number Publication date
IT983124B (en) 1974-10-31

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