EP3756842A1 - Plane de découpage par effleurement - Google Patents

Plane de découpage par effleurement Download PDF

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Publication number
EP3756842A1
EP3756842A1 EP19182081.0A EP19182081A EP3756842A1 EP 3756842 A1 EP3756842 A1 EP 3756842A1 EP 19182081 A EP19182081 A EP 19182081A EP 3756842 A1 EP3756842 A1 EP 3756842A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting machine
sticker
machine knife
knife
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.)
Granted
Application number
EP19182081.0A
Other languages
German (de)
English (en)
Other versions
EP3756842B1 (fr
Inventor
Claude Zimmermann
Simon Jann
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.)
Zuend Systemtechnik AG
Original Assignee
Zuend Systemtechnik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zuend Systemtechnik AG filed Critical Zuend Systemtechnik AG
Priority to EP19182081.0A priority Critical patent/EP3756842B1/fr
Priority to CN202010578499.XA priority patent/CN112123384B/zh
Priority to US16/911,245 priority patent/US20200398451A1/en
Publication of EP3756842A1 publication Critical patent/EP3756842A1/fr
Application granted granted Critical
Publication of EP3756842B1 publication Critical patent/EP3756842B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B26D3/085—On sheet material
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the 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
    • 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
    • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
    • 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
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations
    • 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
    • B26D7/018—Holding the work by suction

Definitions

  • the present invention relates to a cutting machine knife which is designed and precisely provided for kiss-cut cutting or through-cut cutting of stickers.
  • cutting machines For such a cutting of stickers, cutting machines are used which provide a kiss-cut cutting mode and a through-cut cutting mode and in whose cutting tool the cutting machine knife according to the invention is used.
  • an upper side i.e. the sticker itself
  • a bottom side remains, i.e. the carrier layer to which the sticker adheres is intact or is only slightly grooved, scratched or cut.
  • the carrier layer is usually provided with an adhesion-reducing coating
  • the sticker which has a special adhesive layer, being releasably adhered to this adhesion-reducing coating.
  • both sides - the sticker and the carrier layer - should be cut, as it is desirable that the sticker as a whole (i.e. with the carrier layer) already shows its shape.
  • an additional flap can also be cut out, with a small kiss-cut cut usually being made here at the transition between the flap and the sticker so that the flap is not part of the sticker.
  • Cutting machine knives are known from the prior art, which have a pointed or have a blade tip parallel to the cutting direction. Such knives are not optimal for the cutting process and have a limited service life, since their blade tips tend to wear out early on.
  • the cutting machine knife according to the invention is significantly less susceptible to wear due to its design, thus enables a more stable cutting process and offers a longer service life with constant cutting precision.
  • the invention relates to a cutting machine knife for use in a cutting tool of a cutting machine, designed and precisely provided for cutting a sticker in a kiss-cut cutting mode of the cutting machine, in particular in addition to cutting the sticker in a through-cut cutting mode of the cutting machine, the sticker has a cover layer and an adhesive layer, the sticker carrier having an adhesion-reducing layer and a carrier layer, the adhesive layer being releasably adhered to the adhesion-reducing layer, the cutting machine knife being automatically guided by the cutting machine in a cutting direction along the sticker as part of the kiss-cut cutting mode and thereby not or only partially severed the sticker and the sticker carrier, possibly in the context of the through-cut cutting mode, the cutting machine knife by the cutting machine automatically in a cutting direction along the sticker bers is guided and thereby completely severed the sticker and the sticker carrier, wherein the cutting machine knife has the following: has a holding section for inserting the cutting machine knife in a knife holder of the cutting tool, one for the cutting direction Right-angled longitudinal axis,
  • the second angle is between 140 ° and 160 °, in particular 150 °.
  • the first angle is less than 70 °, in particular between 20 ° and 65 °, in particular 35 °, 45 ° or 60 °.
  • the blade between the cutting edge and the intermediate zone preferably has a point that is pointed or rounded, in particular the cutting edge and the intermediate zone encompassing a third angle that results from subtracting the second angle from the first angle.
  • the blade can taper towards the tip along the longitudinal axis and in relation to an axis that is perpendicular to the longitudinal axis and the cutting direction, at least on one side, in particular on both sides, in particular linearly or curved concavely or convexly.
  • a normal distance between the tip and the longitudinal axis is less than 0.04 mm, in particular 0.02 mm, in particular 0.01 mm.
  • the spine can taper parallel to the cutting direction and in relation to an axis that is perpendicular to the longitudinal axis and to the cutting direction, at least on one side, in particular on both sides, in particular taper linearly or in a curved concave or convex manner.
  • the intermediate zone in particular forms a wedge-shaped triangular surface which runs from the tip to the back.
  • the longitudinal axis is preferably an axis of symmetry of at least part of the cutting machine knife, in particular a central shaft, and wherein the axis of symmetry runs through the back with a tolerance of -0.01 mm to +0.01 mm, in particular wherein the back runs parallel to the longitudinal axis.
  • the intermediate zone can in particular have a length between tip and back which is less than 0.04 mm, in particular between 0.03 mm and 0.01 mm, in particular 0.02 mm.
  • the cutting machine knife preferably has a length of between 10 mm and 30 mm, in particular a length of less than 20 mm.
  • the cutting edge in particular has a depth along the longitudinal axis of between 0.5 mm and 3 mm, in particular a depth of between 1 mm and 2.6 mm.
  • the holding section has a diameter of between 2 mm and 4 mm, in particular a diameter of 3 mm.
  • the invention further relates to a use of the cutting machine knife according to the description herein used in a cutting machine with a cutting tool.
  • the invention also relates to a cutting machine with a cutting tool, in which the cutting machine knife is used according to the description herein, the cutting machine providing a kiss-cut cutting mode or in a through-cut cutting mode, which are provided for cutting a sticker
  • the The sticker has a cover layer and an adhesive layer, the sticker carrier having an adhesion-reducing layer and a carrier layer, the adhesive layer being releasably adhered to the adhesion-reducing layer, with the cutting machine knife being automatically cut by the cutting machine along the sticker as part of the kiss-cut cutting mode is performed and not or only partially severed the sticker and the sticker carrier, whereby in the context of the through-cut cutting mode, the cutting machine knife is automatically guided in a cutting direction along the sticker by the cutting machine, completely severing the sticker and the sticker carrier.
  • Figure 1 shows a generic cutting machine 1, which a cutting tool can move over a machine table 4 in the X and Y directions by means of a portal.
  • the control for this is usually carried out by a control unit 2, which can be located in the cutting machine or also externally.
  • the cutting machine knife 3 is for this trained to be used in the tool holder.
  • the cutting machine knife 3 is pressed in a defined manner onto the object 5 to be cut with specially adjustable forces (for example via a spring force or via a servomotor). This pressure is used for so-called kiss-cut cutting, in which only an upper layer of the object 5 is completely severed and a carrier layer that carries this upper layer either remains intact or is at most minimally scratched or grooved by the knife 3.
  • through-cut cutting can also advantageously be carried out with the cutting machine knife according to the invention, in which the object 5 is completely severed and the knife tip the machine table 4 only lightly touched.
  • the machine table 4 is usually air-permeable, because the object 5 can be held on the table 4 by the force of a vacuum generated by air suction.
  • the surface material of the table 4 can be based on polyurethane or consist of a nonwoven fabric.
  • the object 5 is preferably a sticker that adheres to its carrier material, or in more general terms: a material that carries one or more stickers.
  • stickers are self-adhesive films or paper.
  • a print mode is used to cut stickers (pressing on as already mentioned above). Which type of film is cut with which pressure depends on the material specifications and may have to be determined and thus defined by means of cutting tests.
  • the cutting machine is designed to measure the pressure exerted on the material by the tip. When the defined pressure has been reached, this can optionally be signaled by a green LED.
  • the optimum machining depth is achieved with kiss cutting when the knife cuts through the cover layer 100, the adhesive layer 101 and part of the sticker carrier 11. This means that the adhesion-reducing layer 111 is grooved, cut or severed, and the carrier layer 110 is cut or remains intact.
  • the components are in Figure 5 marked. This type of cut ensures that a sticker can be detached from the sticker carrier without the sticker carrier tearing.
  • Common foil materials reach thicknesses of up to 3 mm.
  • the optimum processing depth is reached when the knife covers all layers, i.e. the sticker 10 and the sticker carrier 11, cut through and not damage the machine table 4.
  • the knife can be surrounded on the cutting tool by a (e.g. cylindrical) slider which presses the object 5 to be cut against the table 4 at the cutting area. This again ensures (i.e. in addition to a possible vacuum suction function of the table 4, which securely fixes the object 5) that the cut is carried out cleanly.
  • a slider e.g. cylindrical
  • the use of the slider is particularly suitable for processing reflective foils.
  • a pressure mode can be designed in such a way that the module (cutting tool) exerts a constant pressure, adjustable between 30 and 3500 grams, on the processing material 5.
  • position mode which is not suitable for kiss cutting, but only for through cutting, in which a cutting depth is set in a defined manner (and no pressure), which ensures that the material is completely cut through and the table is not cut.
  • the position mode is therefore an alternative to the pressure mode for through-cutting.
  • the cutting machine knife 3 is designed precisely for the kiss-cut cutting mode and the through-cut cutting mode and ensures that precise and predictive cutting results are achieved by setting defined cutting pressures or defined cutting depths.
  • One embodiment of the invention is shown in Figures 2 and 3 to see.
  • the semi-cylindrical holding section 6 is used for clamping in the cutting tool of the cutting machine 1 and ensures that the knife is precisely aligned.
  • the holding section shown is not essential to the invention and further design options for a holding section are known to those skilled in the art.
  • Cutting machine knives are usually made from a cylindrical raw material.
  • this cylinder is essentially still in cycle and in relation to this, a longitudinal axis L is defined for the cutting machine knife 3, which is an axis of symmetry for this middle section.
  • the cutting direction S is a vector which, starting from the cutting edge, points in the direction of the cutting feed.
  • the cutting direction S is usually perpendicular to the longitudinal axis L.
  • a depth T of the cutting edge 7 - viewed parallel to the longitudinal axis L - is preferably between 0.5 mm and 3 mm.
  • the blade of the knife 3 also has a back 8, which is located facing away from the gate. According to the invention there is an angled intermediate zone 9 between the cutting edge 7 and the back 8, which in the mentioned cutting modes ensures a surprisingly high wear resistance of the knife and thus long-lasting and constant precision of the cutting results.
  • the cutting machine knife according to the invention allows a lower piercing force and a lower cutting force (along the cutting direction) in both cutting modes compared to known knives.
  • the view of Figure 3 lies in a plane which is spanned by the longitudinal axis L and the cutting direction S.
  • the intermediate zone 9 has an angle W2 to the longitudinal axis L of between 40 ° and 80 °. This means that there is an angle with the cutting direction S of 130 ° to 170 °. If this angle approaches the range of about 60 °
  • the longitudinal axis L runs in Figure 3 through the intermediate zone 9, but preferably it runs along the back 8, this with a tolerance range around the back of -0.01 mm to +0.01 mm.
  • edges are preferably each straight, i.e. linear. However, in other embodiments they can also have a curve-like profile.
  • the intermediate zone 9, viewed normal to the longitudinal axis L or parallel to the cutting direction S, has a length Z between the tip 12 and the back 8 which is preferably less than 0.04 mm, in particular between 0.03 mm and 0.01 mm, in particular 0.02 mm .
  • Figure 4 shows the area A again in a three-dimensional (but not necessarily dimensionally accurate) view.
  • the intermediate zone 9 forms a wedge-shaped triangular surface which runs from the tip 12 to the back 8, ie a triangle is formed through the two corners on the back 8 and the tip 12.
  • This surface can be completely flat, or in other embodiments concave or convex.
  • the back also preferably has a flat surface, as in FIG Figure 4 you can see. In other embodiments, as well as in the above-mentioned triangular area of the intermediate zone, this area can also assume further shapes.
  • the cutting edge 7 is of course sharpened and is therefore a sharp edge.
  • the sharpening can also be linear or curved (concave or convex).
  • FIG. 5 shows again in detail the layers of the object to be cut in the side view.
  • the sticker 10 has a cover layer 100 and an adhesive layer 101 firmly connected to the cover layer 100. With the aid of this adhesive layer 101, the sticker 10 adheres to the adhesion-reducing layer 111 of the sticker carrier 11. The adhesion-reducing layer 111 in turn is firmly connected to the carrier layer 110.
  • the material of the adhesion-reducing layer 111 is based, for example, on silicone or a wax.
  • the cover layer 100 and the carrier layer 110 can consist of paper and / or plastic film.
  • the design of the knife 3 according to the invention improves the process of cutting stickers in a very targeted manner and minimizes the wear and tear that occurs on knives of the prior art and is briefly explained below.
  • Figure 6 shows the structure of a generic kiss-cut knife with cutting edge 14 and back 15. Shows in detail Figure 7 the in Figure 6 tip area marked with B. Between the cutting edge 14 and the back 15 there is what is known as a flat spot 16 which, during kiss-cut cutting, also protrudes slightly into the carrier 11 and completely severed the sticker 10. The flat point 16 is provided in order to prevent a “perfect”, ie very pointed tip, breaking off.
  • the knife 3 according to the invention avoids all these signs of wear and tear and thus offers a significantly better cutting quality and an increased service life.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
EP19182081.0A 2019-06-24 2019-06-24 Plane de découpage par effleurement Active EP3756842B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19182081.0A EP3756842B1 (fr) 2019-06-24 2019-06-24 Plane de découpage par effleurement
CN202010578499.XA CN112123384B (zh) 2019-06-24 2020-06-23 吻切拉刀
US16/911,245 US20200398451A1 (en) 2019-06-24 2020-06-24 Kiss-cut draw knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19182081.0A EP3756842B1 (fr) 2019-06-24 2019-06-24 Plane de découpage par effleurement

Publications (2)

Publication Number Publication Date
EP3756842A1 true EP3756842A1 (fr) 2020-12-30
EP3756842B1 EP3756842B1 (fr) 2024-06-05

Family

ID=67003322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19182081.0A Active EP3756842B1 (fr) 2019-06-24 2019-06-24 Plane de découpage par effleurement

Country Status (3)

Country Link
US (1) US20200398451A1 (fr)
EP (1) EP3756842B1 (fr)
CN (1) CN112123384B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108398A1 (fr) * 2021-06-21 2022-12-28 Bodo Möller Chemie GmbH Dispositif de découpe de matières en forme de feuille

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110582385B (zh) * 2017-04-05 2022-01-11 速特系统技术股份公司 切割机和机器可读的载体
CN115723181B (zh) * 2022-12-02 2023-09-19 昆山佳合纸制品科技股份有限公司 一种纸板用切割装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2154167A5 (fr) * 1971-09-23 1973-05-04 Gerber Garment Technology Inc
DE202012005720U1 (de) * 2012-06-13 2012-08-29 Tigra Gmbh Hartmetall-Schneidklingenanordnung zum Einspannen in einer Rundaufnahme
KR20120100564A (ko) * 2011-03-04 2012-09-12 현대모비스 주식회사 차량 패널의 테어라인 가공장치
EP2894014A1 (fr) * 2014-01-10 2015-07-15 Zünd Systemtechnik Ag Lame, en particulier lame oscillante, destinée à être utilisée dans un processus de découpe mécanique, pour la découpe de plaques de sandwich
DE102016102217A1 (de) * 2016-02-09 2017-08-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kartusche für eine Druckeinrichtung, Druckeinrichtung sowie Verfahren zum Einbringen einer Perforation oder von Schnitten und Verwendung einer Kartusche

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KR100264618B1 (ko) * 1996-07-11 2000-09-01 미즈노 마사루 시트 모양의 원료의 압축성형품을 슬라이스 하기 위한 장치 및 분할 나이프
EP2384269B1 (fr) * 2008-12-23 2018-09-26 Trelleborg Sealing Solutions Kalmar AB Procédé pour former une ligne de découpe traversant partiellement une structure de plaque multicouche
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US20130036616A1 (en) * 2011-08-11 2013-02-14 Terry Lee Wagenknecht Dual point hobby knife blade
JP5850711B2 (ja) * 2011-11-08 2016-02-03 株式会社島精機製作所 裁断機
DE102014100645B4 (de) * 2014-01-21 2018-11-22 Thyssenkrupp Ag Werkzeug zum Scherschneiden und Verfahren
JP2017154233A (ja) * 2016-03-03 2017-09-07 達 喜岡 繊維強化プラスチック板の裁断方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2154167A5 (fr) * 1971-09-23 1973-05-04 Gerber Garment Technology Inc
KR20120100564A (ko) * 2011-03-04 2012-09-12 현대모비스 주식회사 차량 패널의 테어라인 가공장치
DE202012005720U1 (de) * 2012-06-13 2012-08-29 Tigra Gmbh Hartmetall-Schneidklingenanordnung zum Einspannen in einer Rundaufnahme
EP2894014A1 (fr) * 2014-01-10 2015-07-15 Zünd Systemtechnik Ag Lame, en particulier lame oscillante, destinée à être utilisée dans un processus de découpe mécanique, pour la découpe de plaques de sandwich
DE102016102217A1 (de) * 2016-02-09 2017-08-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kartusche für eine Druckeinrichtung, Druckeinrichtung sowie Verfahren zum Einbringen einer Perforation oder von Schnitten und Verwendung einer Kartusche

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108398A1 (fr) * 2021-06-21 2022-12-28 Bodo Möller Chemie GmbH Dispositif de découpe de matières en forme de feuille

Also Published As

Publication number Publication date
US20200398451A1 (en) 2020-12-24
CN112123384B (zh) 2023-06-13
CN112123384A (zh) 2020-12-25
EP3756842B1 (fr) 2024-06-05

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