EP3157718B1 - Dispositif et procédé de coupe de tubes en plastique - Google Patents

Dispositif et procédé de coupe de tubes en plastique Download PDF

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Publication number
EP3157718B1
EP3157718B1 EP16753581.4A EP16753581A EP3157718B1 EP 3157718 B1 EP3157718 B1 EP 3157718B1 EP 16753581 A EP16753581 A EP 16753581A EP 3157718 B1 EP3157718 B1 EP 3157718B1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting ring
receiving space
tube
housing
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.)
Active
Application number
EP16753581.4A
Other languages
German (de)
English (en)
Other versions
EP3157718A1 (fr
Inventor
Manfred Müller
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.)
SKS Welding Systems GmbH
Original Assignee
SKS Welding Systems GmbH
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 SKS Welding Systems GmbH filed Critical SKS Welding Systems GmbH
Publication of EP3157718A1 publication Critical patent/EP3157718A1/fr
Application granted granted Critical
Publication of EP3157718B1 publication Critical patent/EP3157718B1/fr
Active 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • 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
    • B26D1/265—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 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
    • 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
    • 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
    • B26D5/083—Rack-and-pinion 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/0033—Cutting members therefor assembled from multiple blades
    • 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
    • B26D2210/00—Machines or methods used for cutting special materials

Definitions

  • the present invention relates to an apparatus and a method for cutting plastic pipes, in particular plastic corrugated pipes.
  • plastic pipe sections are welded together.
  • the cut surfaces of the plastic pipe sections to be welded always run straight, so that they can fit cleanly together for good welding. This is particularly important in plastic corrugated pipes, as for a clean concern of the cut surfaces, the cuts must either run exclusively along a wave crest of the plastic corrugated pipe or exclusively along a wave trough of plastic corrugated pipe.
  • DE 10 2011 056040 A1 discloses a device for cutting corrugated tubes with a radially acting with respect to an axis clamping device for fixing a corrugated tube in a processing position and with a cutting tool, which is brought into the processing position against the corrugated tube in operative position or can be brought, so that by moving the cutting tool and corrugated tube a separation is effected relative to each other.
  • a wave trough the corrugated tube engageable stop means, which are variable in their distance from the cutting tool in the axial direction with respect to the axis.
  • an apparatus for cutting plastic pipes comprising: a multi-part housing, comprising a first housing part and a second housing part, which are displaceable relative to each other between an open position and a closed position, wherein the housing parts in the Closed position form a tube-receiving space for at least partially receiving the plastic tube; a multi-part cutting ring, comprising a first cutting ring portion and a second cutting ring portion, which are formed separately from each other and displaceable relative to the housing parts, wherein the Schneideringabterrorisme are arranged in the closed position of the housing parts around the tube receiving space around and at least one of the Schneideringabête a Having at least partially in the tube-receiving space radially inwardly projecting cutting blade; and drive means for rotationally driving the cutter ring; wherein in the closed position of the housing parts, the plastic tube is fixable in the tube-receiving space, and in the open position of the housing parts
  • the handling of the device is greatly simplified by the multi-part design of the housing and the cutting ring and thereby allowing radial insertion of the plastic tube into the tube receiving space.
  • the device is used for cutting plastic pipes, in particular plastic corrugated pipes, with "cutting" a cutting or cutting transverse to the axial direction of the plastic pipe is meant. If reference is made in the present application to an axial direction or radial direction of the device according to the invention or the housing thereof, this is in the sense to understand a arranged in the tube receiving space plastic tube.
  • the housing may be formed substantially cylindrical in the closed position and may be divided along a horizontal plane in the first housing part and the second housing part.
  • the housing parts In the closed position, the housing parts form a radially closed tube receiving space, which, however, is open in the axial direction, so that a plastic tube received therein can project from both ends of the tube receiving space.
  • the closed tube receiving space is substantially cylindrical.
  • the housing parts In the open position, the housing parts are displaced relative to each other such that the tube receiving space is open at least laterally or in a radial direction, which allows insertion of the plastic tube substantially in the radial direction.
  • the cutting ring is preferably formed in two parts, wherein the first cutting ring portion and the second cutting ring portion can complement each other in the closed position to a circumferential cutting ring.
  • the Schneideringabitese may be formed substantially mirror-symmetrical and may have an angular portion of about 180 °.
  • the Schneideringabête can be arranged displaceably in Schneidering entryen, which are formed in the housing parts, or performed.
  • the Scheideringabête may be rotatably mounted in the closed position about a central axis of the tube-receiving space or the cutting ring in the Schneidering arrangementen.
  • the cutting ring may have a drive profile, whereby it can be driven by the drive device easier.
  • the second Tailoring section can, in particular exclusively, be arranged in the cutting ring of the second housing part.
  • the device can be designed such that the basic position of the cutting ring allows a displacement of the two housing parts from the closed position into the open position together with the cutting ring sections arranged therein, since in the basic position of the cutting ring the dividing lines of the housing parts and the cutting ring sections coincide.
  • the cutting blade is preferably arranged interchangeably on the at least one cutting ring section.
  • the cutting blade may be connected to a cutting blade holder, which in turn is connectable to the cutting ring portion.
  • the cutting blade holder may be formed manually replaceable.
  • a plurality of cutting blade holders can be provided which can position the cutting blade at different depths of the tube receiving space to adapt the device to plastic tubes of various diameters.
  • the cutting blade may also be integrally or integrally formed with the at least one cutting ring portion, or be attached thereto.
  • the cutting blade is preferably arranged such that when closing the housing parts, ie when moving the housing parts from the open position to the closed position, the wall of the inserted into the tube receiving space plastic tube is pierced by the cutting blade.
  • the cutting ring may have a plurality of cutting rings.
  • both the first cutting ring section and the second cutting ring section can have one or more cutting blades.
  • the cutting ring is rotated in the closed position of the housing by means of the drive means to cut the plastic pipe.
  • the cutting blade or the cutting blades are moved by means of the cutting ring in the punched state along the circumference of the plastic tube until a continuous, circumferential cut in the plastic tube, or in the wall thereof, is produced.
  • the drive device can be operated manually and / or electrically. However, it is also conceivable a hydraulic and / or pneumatic operation.
  • the first cutting ring section and / or the second cutting ring section can be driven directly or indirectly.
  • the tube receiving space can be designed in accordance with the outer contour of the plastic tube to be cut, that is to say have a corresponding inner contour which enables positioning and fixing.
  • the housing parts are articulated to each other, so that the housing parts are transverse to an axial direction of the housing between the open position and the closed position pivotally displaceable.
  • the housing parts can have at least one rotary joint or hinge joint, which couples the housing parts to one another at radial end sections.
  • the housing parts can be easily opened or swung open to introduce the plastic tube in the radial direction in the housing substantially.
  • the cutting ring is at least partially formed as a cutting tooth ring, and the first and / or the second cutting ring portion are at least partially formed as first and / or second cutting gear rim portions.
  • the incisor ring can also be referred to as an incisor ring.
  • the at least partial formation of the cutting ring as a cutting-tooth ring enables simple driving of the cutting-ring.
  • the teeth of the cutting ring formed as a cutting ring are preferably arranged radially outboard. It may be in the gearing of the For example, cutting teeth ring act on a straight toothing, a helical toothing or even a bevel gear.
  • the cutting ring can be driven by means of a gear, a pinion or a worm wheel of the drive device.
  • the drive means comprises: a multi-part drive sprocket having a first drive sprocket portion and a second drive sprocket portion, which are formed separately from each other and displaceable relative to the housing parts, wherein the drive sprocket portions are disposed substantially around the cutting ring in the closed position of the housing parts; and an intermediate pinion which is disposed between the cutting ring and the drive sprocket and engages both teeth of the cutting ring and teeth of the drive sprocket; wherein the drive sprocket has an actuating element with which the drive sprocket is manually rotatably displaceable in order to rotationally displace the cutting ring via the intermediate sprocket.
  • the provision of the drive sprocket described above in combination with the intermediate pinion and the actuator in a simple manner allows easy manual driving of the device for cutting the plastic pipe.
  • the drive sprocket is preferably formed in two parts, wherein the first drive sprocket portion and the second drive sprocket portion can complement each other in the closed position to a rotating drive sprocket.
  • the drive sprocket portions may be formed substantially mirror-symmetrical and may have an angular portion of about 180 °.
  • the drive sprocket sections can be arranged displaceably in drive sprocket guides, which are formed in the housing halves. In particular, the drive sprocket portions in the closed position about a central axis of the tube-receiving space or the cutting ring or the Drive sprocket rotatably mounted in the drive sprocket guides.
  • the teeth of the drive sprocket are preferably arranged radially inwardly. It may be the teeth of the drive sprocket, according to the teeth of the cutting ring and / or the intermediate pinion, for example, a spur toothing, a helical gearing or even a bevel gearing. By rotating the drive sprocket so the cutting ring can be driven in rotation via the intermediate pinion. It can also be provided two or more intermediate pinion.
  • the drive sprocket or the drive sprocket sections are at least partially toothed over its circumference.
  • the drive sprocket may also be referred to as a drive toothed ring.
  • the first drive sprocket portion in particular exclusively, be arranged in the drive sprocket guide of the first housing part
  • the second drive sprocket portion can, in particular exclusively, be arranged in the drive sprocket guide of the second housing part.
  • the device can be designed such that the basic position of the cutting ring and the drive sprocket allows a displacement of the two housing parts from the closed position to the open position together with the Schneideringabête and Antriebtechnikkranzabroughe disposed therein, since in the basic position of the cutting ring and the drive sprocket, the dividing lines of the housing parts, the Tailoring sections and the drive sprocket sections coincide.
  • the toothing of the intermediate pinion can be, for example, a straight toothing, a helical toothing or else a bevel toothing.
  • the intermediate pinion in particular exclusively, is mounted rotatably about its own axis in one of the housing parts. However, it can also be stored in each case one or more intermediate pinion in two housing parts.
  • the actuating element may be an actuating lever.
  • actuating element can also be, for example, an actuating crank or an actuating wheel.
  • the numbers of teeth of the cutting ring, the drive sprocket and the intermediate pinion are set such that, in a rotational displacement of the drive sprocket, a rotation amount of the cutting ring is increased over a rotation amount of the drive sprocket.
  • this configuration makes it possible to produce a full cut through the plastic pipe with a small actuating travel of the actuating element. This ensures a particularly simple handling of the device.
  • the numbers of teeth can be adjusted, for example, so that during a rotation of the drive sprocket by about 135 ° of the cutting ring is rotated by about 190 °.
  • the actuator can be designed or arranged so that is rotated at full actuation from one stop to the other stop the drive sprocket by about 135 °. Since the direction of rotation of the drive sprocket due to the Eisenritzels opposite to the direction of rotation of the cutting ring, only the amounts of the rotations, ie regardless of their direction, considered here. With the provision of two cutting blades at two opposite positions of the cutting ring, a rotation of 180 ° would be sufficient to produce a complete cut in the plastic tube.
  • a rotation of the cutting ring by a little more than 180 °, for example 190 ° is preferred.
  • the numbers of teeth are set so that at a rotation amount of the drive sprocket from about 90 ° to about 150 ° Rotational amount of the cutting ring of at least about 180 ° results.
  • the drive device comprises: a drive pinion; and an engine; wherein the drive pinion is engaged with the teeth of the cutting ring; and wherein the drive pinion is drivable by the motor to rotationally displace the cutting ring.
  • this configuration allows for easy handling of the device, since the cutting of the Kunststoffrohes can be done for example by pressing a button or by flipping a switch.
  • the engine is preferably an electric motor. However, it is also conceivable a hydraulic motor or a pneumatic motor.
  • the motor is preferably mounted on or in one of the housing parts.
  • the toothing of the drive pinion may be, for example, a straight toothing, a helical toothing or a bevel toothing according to the toothing of the cutting ring.
  • the drive pinion is connected to the drive axle of the motor and is preferably, in particular exclusively, mounted rotatably about its own axis in one of the housing parts.
  • the motor may have a control or regulating device which shuts off the motor after a rotation of the cutting ring of about 180 °. For detecting the position of the cutting ring, the device may have one or more sensors or buttons.
  • At least one of the housing parts has a positioning rib for axially positioning the plastic corrugated pipe in the pipe receiving space.
  • the positioning rib allows a precise axial positioning of the plastic corrugated pipe in the tube receiving space and prevents axial displacement of the plastic corrugated pipe when closing the housing and / or when cutting the plastic corrugated pipe.
  • the positioning rib is formed on an inner surface of the tube accommodating space or the housing part, and protrudes into the tube accommodating space.
  • the positioning rib may extend along at least a portion of the inner circumference of the tube receiving space.
  • the positioning rib is configured to engage the recess of a corrugation of the plastic corrugated pipe.
  • the first housing part and the second housing part each have two or four positioning ribs, which are arranged individually or in pairs with the cutting ring therebetween.
  • the positioning rib is designed to position the plastic corrugated tube in the tube receiving space such that a section of the cutting blade runs exclusively along a wave crest of the plastic corrugated tube.
  • the cut surfaces of the plastic corrugated pipe sections to be welded run as straight as possible, so that they can fit cleanly against each other. It is advantageous if the cut runs either exclusively along the wave crest of the plastic corrugated pipe or exclusively along the wave trough of the plastic corrugated pipe. A section along the wave crest is particularly advantageous because of the better accessibility in the welding and the larger welding surface.
  • the positioning rib can also be designed to position the plastic corrugated tube in the tube receiving space such that a section of the cutting blade runs exclusively along a corrugation valley of the plastic corrugated tube.
  • the housing has replaceable inserts for modifying the tube receiving space.
  • the device can be easily adapted to different plastic tube sizes and configurations.
  • the inserts can be designed, for example, in the form of a half shell or a shell section.
  • the housing parts may have receptacles for the inserts on their insides.
  • the inner surfaces of the inserts can form the tube receiving space in the closed position.
  • the first and second housing parts may each have two inserts interposed with the cutting ring.
  • the positioning rib described above may be formed on at least one of the inserts, in particular integrally or integrally therewith.
  • the inserts can be manually interchangeable.
  • the first cutting ring portion and the second cutting ring portion each have a cutting blade projecting radially inwardly at least partially into the tube receiving space, the cutting blades being disposed substantially on two opposite sides of the cutting ring.
  • the cutting blade has a cutting blade guard; wherein the cutting blade protection is formed leaf spring-shaped and in the open position of the housing parts, the cutting blade is arranged concealing; wherein upon displacement of the housing parts from the open position to the closed position in the presence of the plastic tube in the tube receiving space, the cutting blade guard is forced through an outer surface of the plastic tube against an inner wall of the tube receiving space, the cutting blade protruding through a slot in the cutting blade guard.
  • the cutting blade guard may be formed as a wave-shaped bent sheet metal.
  • the cutting blade guard may be connected to the cutting blade holder, if present.
  • a method for cutting plastic pipes comprising the following steps: inserting the plastic pipe substantially in the radial direction into an open pipe receiving space of a multi-part housing in an open position; Relocating a first housing part and a second housing part of the housing relative to each other from the open position to a closed position, wherein in the closed position, the plastic tube is fixed in the tube receiving space, formed separately from each other and relative to the housing parts displaceably arranged first and second cutting ring sections of a multi-part cutter extending around the tube receiving space, and at least one cutting blade of one of the cutting ring portions pierces through a wall of the plastic tube and projects at least partially radially inwardly into the tube receiving space; and rotationally driving the cutting ring by means of drive means for forming a circumferential cut in the wall of the plastic pipe.
  • Fig. 1 shows a perspective view of a device 1 according to a first embodiment in an open position
  • Fig. 2 shows a perspective view of the same device 1 in the closed position
  • the housing 2 has a first housing part 2a and a second housing part 2b, which are arranged to be displaceable relative to one another via two hinge joints 4.
  • the assignment "first" and “second” is arbitrary.
  • the axis of rotation of the two hinge joints 4 extends parallel to the axial direction of the inserted into the device 1 plastic corrugated pipe 6 and the tube-receiving space.
  • the housing parts 2a, 2b are between the in Fig. 1 shown opening position and in Fig. 2 shown closed position to be shifted.
  • the second housing part 2b has two feet 10, by means of which the device can be placed on the floor and possibly screwed with this.
  • the first housing part 2a and the second housing part 2b each have a left housing part and a right housing part.
  • the first and second housing part are each divided in the axial direction into two housing part sections, which are formed or manufactured separately.
  • the two housing subsections have connecting flanges and are connected to each other by means of screws 11, the two housing subsections enclosing the separator ring 20 and the cutting ring sections 20a, 20b and the drive sprocket 22 and the drive sprocket sections 22a, 22b, respectively.
  • the two housing part sections of the first housing part 2a form in their connection region, in particular on the radial peripheral region of the connecting flange, a slot 12, along which the rod of the actuating lever 14 can be moved.
  • the two housing subsections of the first housing part 2a each have a locking clip 16 which, when the housing parts 2a, 2b are engaged, each latch with a locking edge 18 of the two housing subsections of the second housing part 2b.
  • the housing 2 may be made of plastic, in particular fiber-reinforced or unreinforced PA, PPO or POM.
  • the housing parts 2a, 2b or the housing part sections can be easily produced by injection molding, wherein metallic reinforcements, such as pins or the like, can be overmolded.
  • Fig. 3 shows the device 1 in the open position, wherein the right housing part sections are hidden.
  • the first cutting ring portion 20a of the cutting ring 20 and the first drive sprocket portion 22a of the drive sprocket 22 are displaceably arranged in the cutting ring 24 and the drive sprocket guide 26 of the first housing part 2a.
  • the second cutting ring portion 20b of the cutting ring 20 and the second drive sprocket portion 22b of the drive sprocket 22 in the cutting ring 24 and the drive sprocket guide 26 of the second housing part 2b are arranged displaceably.
  • This state can be referred to as the basic position of the cutting ring 20 and the drive sprocket 22.
  • the Schneidering Insert 24 and the drive sprocket guide 26 are formed by corresponding recesses on the end wall of the connecting flanges of the housing part sections.
  • the intermediate pinions 28 are respectively disposed between the cutting ring portions 20a, 20b and the driving sprocket portions 22a, 22b, and are engaged with the teeth of both the cutting ring portion and the driving sprocket portion, respectively.
  • the intermediate pinions 28 are rotatably mounted in the housing parts 2a, 2b, in particular between the housing part sections stored.
  • the cutting ring 20, the drive sprocket 22 and / or the intermediate pinion 28 may be made of plastic, in particular fiber-reinforced or unreinforced PA, PPO or POM.
  • the separating ring 20, the drive sprocket 22 and / or the intermediate pinion 28 can be easily produced by injection molding, wherein metallic reinforcements can be encapsulated.
  • the cutting ring portions 20a, 20b each have a cutting blade 30 which is fixed by means of a cutting blade holder 32 to a radially inner side of the cutting ring portion.
  • the cutting blades 30 are each covered by a cutting blade guard 34.
  • the housing parts 2a, 2b exchangeable inserts 36 on.
  • the inserts 36 are semi-cylindrical in shape and have outboard mounting ribs 38 which can be inserted into corresponding mounting slots 40 on an inner surface of the housing member to position the inserts 36.
  • two positioning ribs 42 for axially positioning the plastic corrugated tube 6 in the tube receiving space 8 are formed near the cutter ring 20.
  • the positioning ribs 42 are arranged in such a way that a corrugation peak of the plastic corrugated pipe 6 can be arranged lying on both sides between the positioning ribs 42.
  • the separating ring 20, the drive sprocket 22 and / or the intermediate pinion 28 and the inserts 36 may be made of plastic, in particular fiber-reinforced or unreinforced PA, PPO or POM.
  • the inserts 36 can be easily manufactured by injection molding, wherein metallic reinforcements can be encapsulated.
  • Fig. 4 shows sectional views of the device 1 at various stages during the cutting process.
  • Fig. 4 (a) shows the device 1 in the open position with an already inserted plastic corrugated pipe 6.
  • the plastic corrugated pipe 6 was inserted into the open pipe receiving space 8 such that the cutting blade 30 of the second cutting ring portion 20b is already pierced through the wall of the plastic corrugated pipe 6.
  • Fig. 4 (b) shows the state after the device 1 has been closed and is in the closed position.
  • the locking clips 16 lock the device 1 and the housing parts 2a, 2b in the closed position.
  • Fig. 5 shows a perspective view of a device 1 according to a second embodiment in an open position
  • Fig. 6 shows a perspective view of the same device 1 in the closed position
  • Fig. 7 shows the device 1 of the second embodiment in the open position, wherein the right housing part sections are hidden.
  • the device 1 according to the second embodiment differs from that of the first embodiment in that the drive of the cutting ring 20 is made via the drive pinion 44, which is driven by the electric motor 46. By omitting the drive sprocket and the actuating lever, the device 1 can be made more compact in the radial direction.
  • the device 1 is adapted in the second embodiment for cutting a plastic corrugated pipe 6 with a large diameter.
  • thin-walled inserts 36 were used, which form a large tube-receiving space.
  • the cutting blades 30 were positioned by means of respective cutting blade holders 32.
  • the Device of the first embodiment can be adapted to plastic pipes of larger diameter.
  • Fig. 8 shows sectional views of the device 1 of the second embodiment in various stages during the cutting process.
  • Fig. 8 (a) shows the device 1 in the open position with an already inserted plastic corrugated pipe 6.
  • the plastic corrugated pipe 6 was inserted into the open pipe receiving space 8 such that the cutting blade 30 of the second cutting ring portion 20b is already pierced through the wall of the plastic corrugated pipe 6.
  • Fig. 8 (b) shows the state after the device 1 has been closed and is in the closed position.
  • the locking clips 16 lock the device 1 and the housing parts 2a, 2b in the closed position.
  • Fig. 9 shows a sectional view of a device 1 according to a third embodiment in a closed position
  • Fig. 10 shows a sectional view of the same device 1 in the open position
  • the device 1 of the third embodiment is a manually operated variant similar to the first embodiment.
  • a difference from the first embodiment is that both the first housing part 2a and the second housing part 2b each have a fixing hook 48, which are arranged in the region of the hinge joint of the housing parts 2a, 2b.
  • the fixing hooks 48 are designed, in the open position of the housing parts 2a, 2b, respectively to engage in a fixing pocket 50 of the first and the second drive toothed rim section 22a, 22b in order to fix them in the basic position.
  • Fig. 11 shows a detailed view of it.
  • Fig. 12 shows a detailed view of the second housing part 2b in the region of the hinge joints 4 and the rotary shafts thereof.
  • the other components of the device are in Fig. 12 hidden.
  • the fixing hook 48 is arranged radially outwardly between the rotary shafts of the hinge joints 4 on the second housing part 2b, in particular on the left second housing part section.
  • the fixing hook 48 of the first housing part (not shown) is arranged in the connected state of the two housing parts side by side so that both fixing hooks 48 can engage in the respective fixing pockets of the first and second drive sprocket portion 22a, 22b.
  • the fixing hooks 48 of the housing parts are arranged at the same axial height as the drive sprocket guide 26 and the cutting ring 24.
  • Fig. 13 shows an embodiment of a cutting blade holder 32, as provided in the third embodiment of the device. However, this cutting blade holder 32 is also usable in the apparatus of the first or second embodiment when the configuration of the cutting ring portions is adjusted accordingly.
  • Fig. 14 shows one Sectional view of the cutting blade holder 32 of Fig. 13 wherein the cutting blade holder 32 is mounted in a cutting ring portion. Similar to the cutting blade holders of the first and second embodiments, in this cutting blade holder 32, the cutting blade 30 is fixed in a head portion of the cutting blade holder 32 so that the tip of the cutting blade 30 projects radially inward. The cutting blade guard 34 hides the cutting blade 30 in the radial direction. The difference of in Fig. 13 and Fig.
  • the cutting blade holder 32 is manually replaceable in a simple manner.
  • the cutting blade holder 32 on two mounting arms 52, which are elastically displaceable to each other substantially in the radial direction.
  • each locking projections 54 are formed, which can lock into corresponding locking recesses of the Schneideringabitese.
  • a mounting arm 52 can be elastically displaced radially inward with the fingers to release the latch.
  • the cutting blade holder 32 may be formed asymmetrically and have a shorter and a longer mounting arm 52.
  • the mounting arms protrude in the assembled state at both end edges of the cutting ring portion, so that the projecting portion can be grasped by the fingers of the user. Due to the location of the cut is in the sectional view in Fig. 14 one of the two protruding parts of the respective mounting arms 52 not visible. In the plan view in Fig. 15 On the other hand, both projecting parts of the respective mounting arms 52 can be seen. For even better accessibility of the user's fingers, recesses 56 may be provided on the end edges of the cutting ring portions. Despite the asymmetric design of the cutting blade holder 32, two of these cutting blade holder 32 of the respective cutting ring sections complement each other to form a circumferential ring, which also contributes to the positioning and fixing of the plastic pipe.
  • Fig. 16 shows an embodiment of an insert 36, which can be easily assembled and disassembled manually.
  • the insert part 36 has a radially outwardly projecting, elastically displaceable latching section 58, which can be locked with a Verrastungskante of the housing part.
  • the insert 36 can be easily clipped with the housing part.
  • two gripping projections 60 of the latching portion 58 which protrude from the housing part in the assembled state, gripped with the fingers and elastically displaced to each other.

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 (12)

  1. Dispositif (1) pour la coupe de tubes en plastique (6), notamment de tubes ondulés en plastique (6), caractérisé par :
    un logement en plusieurs parties (2) présentant une première partie de logement (2a) et une seconde partie de logement (2b) qui peuvent être déplacées l'une par rapport à l'autre entre une position ouverte et une position fermée, dans lequel les parties de logement (2a, 2b) réalisent dans la position fermée un espace de réception de tube (8) pour la réception au moins partielle du tube en plastique (6) ;
    un anneau de coupe en plusieurs parties (20) présentant une première section d'anneau de coupe (20a) et une seconde section d'anneau de coupe (20b) qui sont réalisées séparément l'une de l'autre et disposées de manière à pouvoir être déplacées par rapport aux parties de logement (2a, 2b), dans lequel les sections d'anneau de coupe (20a, 20b) sont disposées dans la position fermée des parties de logement (2a, 2b) en s'étendant autour de l'espace de réception de tube (8) et dans lequel au moins une des sections d'anneau de coupe (20a, 20b) présente une lame de coupe (30) dépassant au moins partiellement dans l'espace de réception de tube (8) radialement vers l'intérieur ; et
    un dispositif d'entraînement (22, 28 ; 44, 46) pour l'entraînement rotatif de l'anneau de coupe (20) ;
    dans lequel le tube en plastique (6) peut être fixé dans l'espace de réception de tube (8) dans la position fermée des parties de logement (2a, 2b), et le tube en plastique (6) peut être introduit essentiellement dans le sens radial dans l'espace de réception de tube ouvert (8) dans la position ouverte des parties de logement (2a, 2b).
  2. Dispositif (1) selon la revendication 1, dans lequel les parties de logement (2a, 2b) sont logées de manière articulée l'une par rapport à l'autre de sorte que les parties de logement (2a, 2b) peuvent être déplacées par pivotement entre la position ouverte et la position fermée de manière transversale à un sens axial du logement (2).
  3. Dispositif (1) selon la revendication 1 ou 2,
    dans lequel l'anneau de coupe (20) est réalisé au moins partiellement en tant que couronne dentée de coupe ; et
    dans lequel la première et/ou la seconde section d'anneau de coupe (20a, 20b) sont réalisées au moins partiellement en tant que première et/ou seconde sections de couronne dentée de coupe.
  4. Dispositif (1) selon la revendication 3, dans lequel le dispositif d'entraînement (22, 28) présente :
    une couronne dentée d'entraînement en plusieurs parties (22) présentant une première section de couronne dentée d'entraînement (22a) et une seconde section de couronne dentée d'entraînement (22b) qui sont réalisées séparément l'une de l'autre et disposées de manière à pouvoir être déplacées par rapport aux parties de logement (2a, 2b), dans lequel les sections de couronne dentée d'entraînement (22a, 22b) sont disposées dans la position fermée des parties de logement (2a, 2b) en s'étendant essentiellement autour de l'anneau de coupe (20) ; et
    un pignon intermédiaire (28) qui est disposé entre l'anneau de coupe (20) et la couronne dentée d'entraînement (22) et est en engrènement aussi bien avec des dents de l'anneau de coupe (20) qu'avec des dents de la couronne dentée d'entraînement (22) ;
    dans lequel la couronne dentée d'entraînement (22) présente un élément d'actionnement (14) avec lequel la couronne dentée d'entraînement (22) peut être déplacée de manière rotative manuellement pour déplacer de manière rotative l'anneau de coupe (20) par le biais du pignon intermédiaire (28).
  5. Dispositif (1) selon la revendication 4, dans lequel les nombres de dents de l'anneau de coupe (20), de la couronne dentée d'entraînement (22) et du pignon intermédiaire (28) sont réglés de telle sorte que lors d'un déplacement rotatif de la couronne dentée d'entraînement (22), une quantité de rotation de l'anneau de coupe (20) est agrandie par rapport à une quantité de rotation de la couronne dentée d'entraînement (22).
  6. Dispositif (1) selon la revendication 3, dans lequel le dispositif d'entraînement (44, 46) présente :
    un pignon d'entraînement (44) ; et
    un moteur (46) ;
    dans lequel le pignon d'entraînement (44) est en engrènement avec les dents de l'anneau de coupe (20) ; et
    dans lequel le pignon d'entraînement (44) peut être entraîné au moyen du moteur (46) pour déplacer de manière rotative l'anneau de coupe (20).
  7. Dispositif (1) selon une des revendications précédentes,
    dans lequel au moins une des parties de logement (2a, 2b) présente une nervure de positionnement (42) pour le positionnement axial du tube ondulé en plastique (6) dans l'espace de réception de tube (8).
  8. Dispositif (1) selon la revendication 7,
    dans lequel la nervure de positionnement (42) est réalisée pour positionner le tube ondulé en plastique (6) dans l'espace de réception de tube (8) de telle sorte qu'une coupe de la lame de coupe (30) s'étend exclusivement le long d'un sommet du tube ondulé en plastique (6).
  9. Dispositif (1) selon une des revendications précédentes,
    dans lequel le logement (2a, 2b) présente des pièces d'insertion échangeables (36) pour la modification de l'espace de réception de tube (8).
  10. Dispositif (1) selon une des revendications précédentes,
    dans lequel la première section d'anneau de coupe (20a) et la seconde section d'anneau de coupe (20b) présentent chacune une lame de coupe (30) dépassant au moins partiellement dans l'espace de réception de tube (8) radialement vers l'intérieur, dans lequel les lames de coupe (30) sont disposées essentiellement sur deux côtés opposés de l'anneau de coupe (20).
  11. Dispositif (1) selon une des revendications précédentes,
    dans lequel la lame de coupe (30) présente une protection de lame de coupe (34) ;
    dans lequel la protection de lame de coupe (34) est réalisée en forme de ressort à lames et est disposée dans la position ouverte des parties de logement (2a, 2b) en couvrant la lame de coupe (30) ;
    dans lequel lors du déplacement des parties de logement (2a, 2b) de la position ouverte dans la position fermée en cas de présence du tube en plastique (6) dans l'espace de réception de tube (8), la protection de lame de coupe (34) est pressée contre une paroi interne de l'espace de réception de tube (8) par une face externe du tube en plastique (6), dans lequel la lame de coupe (30) fait saillie à travers une fente dans la protection de lame de coupe (34).
  12. Procédé pour la coupe de tubes en plastique (6), notamment de tubes ondulés en plastique (6), comprenant les étapes de :
    introduction du tube en plastique (6) essentiellement dans le sens radial dans un espace de réception de tube ouvert (8) d'un logement en plusieurs parties (2) dans une position ouverte ;
    déplacement d'une première partie de logement (2a) et d'une seconde partie de logement (2b) du logement (2) l'une par rapport à l'autre de la position ouverte dans une position fermée, dans lequel le tube en plastique (6) est fixé dans l'espace de réception de tube (8) dans la position fermée, des première et seconde sections d'anneau de coupe (20a, 20b) d'un anneau de coupe en plusieurs parties (20) réalisées séparément l'une de l'autre et disposées de manière à pouvoir être déplacées par rapport aux parties de logement (2a, 2b) sont disposées en s'étendant autour de l'espace de réception de tube (8), et au moins une lame de coupe (30) d'une des sections d'anneau de coupe (20a, 20b) transperce à travers une paroi du tube en plastique (6) et dépasse au moins partiellement dans l'espace de réception de tube (8) radialement vers l'intérieur ; et
    entraînement rotatif de l'anneau de coupe (20) au moyen d'un dispositif d'entraînement (22, 28 ; 44, 46) pour la réalisation d'une coupe périphérique dans la paroi du tube en plastique (6).
EP16753581.4A 2015-08-31 2016-07-29 Dispositif et procédé de coupe de tubes en plastique Active EP3157718B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015011394.1A DE102015011394B4 (de) 2015-08-31 2015-08-31 Vorrichtung und Verfahren zum Schneiden von Kunststoffrohren
PCT/EP2016/001317 WO2017036571A1 (fr) 2015-08-31 2016-07-29 Dispositif et procédé de coupe de tubes en plastique

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EP3157718A1 EP3157718A1 (fr) 2017-04-26
EP3157718B1 true EP3157718B1 (fr) 2017-12-06

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EP (1) EP3157718B1 (fr)
DE (1) DE102015011394B4 (fr)
WO (1) WO2017036571A1 (fr)

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CN109552845A (zh) * 2018-10-30 2019-04-02 湖北兴欣科技股份有限公司 旋转式管道夹持装置
CN111452138A (zh) * 2020-04-10 2020-07-28 漆建平 一种用于林业的锯木设备

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CN109807360A (zh) * 2017-11-22 2019-05-28 洛阳凯众减震科技有限公司 微孔聚氨酯密封环的加工方法及用于该方法的工装夹具
CN108297152B (zh) * 2018-01-26 2020-09-15 山东金光复合材料股份有限公司 一种卡车脚蹬装饰板用切割设备
CN108556020B (zh) * 2018-04-18 2020-02-14 保隆(安徽)汽车配件有限公司 一种用于管材切割的夹持装置
CN109571600B (zh) * 2018-11-29 2019-09-24 山东省肿瘤防治研究院 一种中草药切断加工方法
CN109571599B (zh) * 2018-11-29 2019-11-08 安徽道源堂中药饮片有限公司 一种药材加工设备
EP3808517B1 (fr) * 2019-10-16 2023-11-22 Rolf Schlicht GmbH Dispositif de coupe, en particulier machine rotative de coupe en longueur pour pièces en extrusion de matière plastique et / ou de caoutchouc
CN116852432B (zh) * 2023-07-07 2024-01-09 江苏方正塑业有限公司 一种用于塑料加工的塑料制管设备

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DE19807337A1 (de) * 1998-02-20 1999-09-02 Ulmer Verfahren zum Schneiden von Wellrohren sowie Vorrichtung zur Durchführung des Verfahrens
DE102011056040A1 (de) * 2011-12-05 2013-06-06 Rothenberger Ag Vorrichtung zum Ablängen von Wellrohren
BR112015030739A2 (pt) * 2013-06-20 2017-08-22 Titeflex Corp Ferramenta de decapagem de camisa, kit, método para remover uma ou mais camadas de camisa externas, e lâmina

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109552845A (zh) * 2018-10-30 2019-04-02 湖北兴欣科技股份有限公司 旋转式管道夹持装置
CN109552845B (zh) * 2018-10-30 2020-05-22 湖北兴欣科技股份有限公司 旋转式管道夹持装置
CN111452138A (zh) * 2020-04-10 2020-07-28 漆建平 一种用于林业的锯木设备
CN111452138B (zh) * 2020-04-10 2021-11-16 钟小龙 一种用于林业的锯木设备

Also Published As

Publication number Publication date
WO2017036571A1 (fr) 2017-03-09
EP3157718A1 (fr) 2017-04-26
DE102015011394A1 (de) 2017-03-02
DE102015011394B4 (de) 2018-11-15

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