EP3235746A1 - Suction cup gripping head for the opening of a paper or cardboard tray and relative method of opening a tray - Google Patents
Suction cup gripping head for the opening of a paper or cardboard tray and relative method of opening a tray Download PDFInfo
- Publication number
- EP3235746A1 EP3235746A1 EP17167236.3A EP17167236A EP3235746A1 EP 3235746 A1 EP3235746 A1 EP 3235746A1 EP 17167236 A EP17167236 A EP 17167236A EP 3235746 A1 EP3235746 A1 EP 3235746A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tray
- glued
- suction cup
- opening
- paper
- 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
Links
- 239000011111 cardboard Substances 0.000 title claims abstract description 25
- 239000011087 paperboard Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 description 8
- 238000004064 recycling Methods 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 238000009517 secondary packaging Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
- B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
- B65B43/305—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated specially adapted for boxes, cartons or carton blanks
Definitions
- the present invention relates to a suction cup gripping head for the opening of a paper or cardboard tray and to a relative method of opening a tray.
- Tray means a sheet of paper or cardboard turned up at the four sides to form two glued opposite outer sides and two sides orthogonal to the outer sides provided at their ends with attachments forming inner flaps glued to outer flaps glued to the other sides.
- paper or cardboard trays is for example frequent in the case of primary containers consisting of bottles, which require a containment edge for stabilizing the pallets.
- the need may occur to palletize primary containers or sales units in order to store them and depalletize them at a later time in order to feed them to a packaging machine for the successive secondary packaging.
- the packaging location there is an increased quantity of empty trays exiting from the depalletization, which require disposal.
- a sales unit means a bundle, a tray or a closed box.
- the primary products introduced into this mixed sales unit may differ from one another for content, colour, labelling, and in the more complex cases, for the shape of the bottle or the container.
- the primary products are of different "types" to define all these possible differences.
- Primary products similarly means units closed in primary packages to be introduced into a packaging machine to produce secondary packages.
- the trays used are open, that is flattened, thus causing the tear at the corners through a mechanical thrust action exerted from the inside outwards.
- the trays thus torn can no longer be reused, not even as inserts, and they represent a significant waste of material.
- the aim of the present invention is to provide a suction cup gripping head for the opening of a paper or cardboard tray and a relative method of opening a tray which allows resolving the drawbacks of the prior art.
- Another aim of the present invention is to provide a suction cup gripping head for the opening of a paper or cardboard tray and a relative method capable of efficiently detaching the glued flaps of the tray without tearing the cardboard and thus minimizing the deformations thereof.
- Another aim of the present invention is to provide a suction cup gripping head for the opening of a paper or cardboard tray and a particularly simple and functional relative method, with contained costs and compact size.
- suction cup gripping head 42 for the opening of a paper or cardboard tray 111 according to the invention.
- the gripping head 42 is for example applied to a robot of a tray transformation unit (not shown) belonging to a tray recycling system of a mixed palletization plant.
- a tray transformation unit (not shown) belonging to a tray recycling system of a mixed palletization plant.
- pallets of single-flavoured products contained in paper or cardboard trays 111 are supplied, which are depalletized for the creation of mixed lots of primary products, that is to say lots consisting of different primary products supplied towards a packaging machine which packages them in bundles, trays or closed boxes.
- the trays 111, emptied of the primary products, are conveyed towards the tray transformation unit which picks them, opens them and stacks them to make them available for a new use.
- the suction cup gripping head 42 identifies a quadrilateral perimeter of adjustable size according to the size of the trays 111.
- the suction cup gripping head 42 comprises four gripper elements 43 placed in pairs at ends of two opposite sides of the perimeter and associable with pairs of opposite glued flaps, outer 111A and inner 111'A, of the tray 111.
- Each gripper element 43 is provided with a first set of inner suction cups 44 engageable in translation by means of linear actuators 56 against the inner flap 111'A of the gluing of the tray, and with a tear device engageable to the outer flap 111A of the gluing of the tray by means of a tilting arm 46 adapted to detach the flap 111A of the tray 111 with its rotary movement.
- the tear device causes the detachment of the two outer 111A and inner 111A' glued flaps following the detachment of the glue, and not the breakage of the cardboard.
- the tear device may comprise a second set of outer suction cups 45 engageable against the outer glued flap 111A of the tray, associated with a hook 54 that can be activated by means of a linear actuator 55 for the engagement in a hooking manner with the glued side of the tray 111 from the inside thereof.
- the hook 54 which may be associated also only with one of the two gripper elements 43 in a gripping manner on a pair of glued flaps 111A, 111'A, as shown for example in figure 1 , is positioned along the side of the tray 111 so as not to get in touch with the glued inner flap 111'A. It is indeed positioned more centrally with respect to the second set of suction cups 45. According to a further embodiment (not shown), the hook 54 could be absent or associated with all the gripper elements.
- the outer 45 and inner 44 suction cups are closed in sequence against the glued flaps 111A and 111'A, while the hook 54 is in an extracted resting position.
- the generation of vacuum inside the suction cups ensures the gripping on the relative glued flaps 111A and 111'A.
- the hook 54 is then moved by means of translation into its engagement position with the inside of the glued side of the tray.
- the outer suction cups 45 and the hook 54 are caused to rotate about a fulcrum 47 placed at about the fold of the outer glued flap 111A, through the engagement of a linear actuator 48 on a tilting arm 49 rigidly connected in parallel to the arm 46.
- the hook 54 helps to pull the glued flap 111A, thus avoiding the detachment of the outer suction cup 45, thus creating a synergetic action for obtaining the detachment of the glued flaps 111A and 111'A with the minimum deformation of the tray 111.
- the hook 54 is then brought back to an extracted resting position.
- the closing and tearing cycle of the pair of suction cups 44, 45 is performed identically to the one described above.
- the outer suction cups 45 are caused to rotate about the fulcrum 47 placed at about the fold of the outer glued flap 111A, through the engagement of the linear actuator 48 on the tilting arm 49 rigidly connected in parallel to the arm 46.
- the suction cup gripping head 42 also comprises a pair of presser elements 50 respectively placed at the two remaining sides 111B of the tray 111, which are orthogonal to the glued flaps 111A and 111'A.
- Each presser element 50 preferably provided with a wide flat thrusting surface, is hinged at the fold of the side 111B of the tray 111, orthogonal to the glued flaps 111A and 111'A and connected to a linear actuator 51.
- the presser elements 50 rotate orthogonal to the tear direction of the outer glued flap 111A to act each on a side orthogonal to the gluing side of the tray, to complete the opening of the orthogonal sides 111B and the flattening of the tray, according to what shown in figure 9.
- the suction cup gripping head 42 also comprises, in a position internal to the quadrilateral perimeter, a plurality of vertical linear actuators 52 arranged orthogonal to the plane of the tray, provided at the lower ends with suction cups 53 adapted to keep the open tray 111 raised and to facilitate its extraction from the suction cup gripping head 42 for depositing it onto a stack of open trays by pushing the open tray downwards (figure 10).
- the method of opening a paper or cardboard tray according to the present invention comprises the steps of:
- the suction cup gripping head for the opening of a paper or cardboard tray and the relative method according to the present invention advantageously allow detaching the glued flaps without tearing the cardboard.
- the suction cup gripping head for the opening of a paper or cardboard tray and the relative method according to the present invention have the advantage of allowing the automated recycling of the trays.
- suction cup gripping head for the opening of a paper or cardboard tray and the relative method thus conceived are susceptible to numerous modifications and variants, all falling within the invention; moreover, all the details may be replaced with technically equivalent elements.
- the materials used, as well as the dimensions, may be any according to technical requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Cartons (AREA)
- Making Paper Articles (AREA)
Abstract
Description
- The present invention relates to a suction cup gripping head for the opening of a paper or cardboard tray and to a relative method of opening a tray.
- Increasing attention in the packaging field is paid to minimizing waste materials both in terms of savings and in terms of respecting the environment, and has led to the need to recover empty paper or cardboard trays which formed the resting base of pallets of primary products. The recycling of empty trays may be understood as reusing them as inserts or possibly also as new trays.
- Tray means a sheet of paper or cardboard turned up at the four sides to form two glued opposite outer sides and two sides orthogonal to the outer sides provided at their ends with attachments forming inner flaps glued to outer flaps glued to the other sides.
- The use of paper or cardboard trays is for example frequent in the case of primary containers consisting of bottles, which require a containment edge for stabilizing the pallets.
- The need may occur to palletize primary containers or sales units in order to store them and depalletize them at a later time in order to feed them to a packaging machine for the successive secondary packaging. In this case, at the packaging location there is an increased quantity of empty trays exiting from the depalletization, which require disposal.
- This situation is common to packaging plants of mixed lots of different primary products in which pallets of single-flavour products contained on paper or cardboard trays are fed, which are depalletized, combined with each other and fed towards a packaging machine which packages them in bundles, trays or closed boxes.
- Indeed, an increasingly felt need in the world of packaging is the one of producing mixed sales units containing individual primary products which may be bottles, containers or cans, having different features.
- Typically, a sales unit means a bundle, a tray or a closed box. The primary products introduced into this mixed sales unit may differ from one another for content, colour, labelling, and in the more complex cases, for the shape of the bottle or the container. To simplify the description, we say that the primary products are of different "types" to define all these possible differences.
- Primary products similarly means units closed in primary packages to be introduced into a packaging machine to produce secondary packages.
- Currently, the trays used are open, that is flattened, thus causing the tear at the corners through a mechanical thrust action exerted from the inside outwards. The trays thus torn can no longer be reused, not even as inserts, and they represent a significant waste of material.
- The aim of the present invention is to provide a suction cup gripping head for the opening of a paper or cardboard tray and a relative method of opening a tray which allows resolving the drawbacks of the prior art.
- Another aim of the present invention is to provide a suction cup gripping head for the opening of a paper or cardboard tray and a relative method capable of efficiently detaching the glued flaps of the tray without tearing the cardboard and thus minimizing the deformations thereof.
- Another aim of the present invention is to provide a suction cup gripping head for the opening of a paper or cardboard tray and a particularly simple and functional relative method, with contained costs and compact size.
- These aims according to the present invention are achieved by providing a suction cup gripping head for the opening of a paper or cardboard tray and a relative method, as disclosed in the independent claims.
- Further characteristics are provided in the dependent claims.
- The characteristics and advantages of a suction cup gripping head for the opening of a paper or cardboard tray and a relative method according to the present invention will be more apparent from the following description, which is to be understood as exemplifying and not limiting, referring to the accompanying drawings in which:
-
figure 1 shows a suction cup gripping head for a paper or cardboard tray according to the invention; -
figures 2A-2D show the opening sequence of a glued flap of a paper tray with a suction cup gripping head offigure 1 ; -
figure 3 shows the successive opening of a side orthogonal to the glued flap of the tray through the suction cup gripping head offigure 1 ; -
figure 4 shows the final extraction of the tray from the suction cup head offigure 1 . - With reference to the figures, there is shown a suction
cup gripping head 42 for the opening of a paper orcardboard tray 111 according to the invention. - The gripping
head 42 is for example applied to a robot of a tray transformation unit (not shown) belonging to a tray recycling system of a mixed palletization plant. Indeed, in a mixed palletization plant pallets of single-flavoured products contained in paper orcardboard trays 111 are supplied, which are depalletized for the creation of mixed lots of primary products, that is to say lots consisting of different primary products supplied towards a packaging machine which packages them in bundles, trays or closed boxes. Thetrays 111, emptied of the primary products, are conveyed towards the tray transformation unit which picks them, opens them and stacks them to make them available for a new use. - The suction
cup gripping head 42 identifies a quadrilateral perimeter of adjustable size according to the size of thetrays 111. The suctioncup gripping head 42 comprises fourgripper elements 43 placed in pairs at ends of two opposite sides of the perimeter and associable with pairs of opposite glued flaps, outer 111A and inner 111'A, of thetray 111. Eachgripper element 43 is provided with a first set ofinner suction cups 44 engageable in translation by means of linear actuators 56 against the inner flap 111'A of the gluing of the tray, and with a tear device engageable to theouter flap 111A of the gluing of the tray by means of a tiltingarm 46 adapted to detach theflap 111A of thetray 111 with its rotary movement. The tear device causes the detachment of the two outer 111A and inner 111A' glued flaps following the detachment of the glue, and not the breakage of the cardboard. The tear device according to a preferred embodiment may comprise a second set ofouter suction cups 45 engageable against the outer gluedflap 111A of the tray, associated with ahook 54 that can be activated by means of alinear actuator 55 for the engagement in a hooking manner with the glued side of thetray 111 from the inside thereof. Thehook 54, which may be associated also only with one of the twogripper elements 43 in a gripping manner on a pair of gluedflaps 111A, 111'A, as shown for example infigure 1 , is positioned along the side of thetray 111 so as not to get in touch with the glued inner flap 111'A. It is indeed positioned more centrally with respect to the second set ofsuction cups 45. According to a further embodiment (not shown), thehook 54 could be absent or associated with all the gripper elements. - According to the preferred embodiment, as schematically shown in the sequence of figure 8A-8D, the outer 45 and inner 44 suction cups are closed in sequence against the glued
flaps 111A and 111'A, while thehook 54 is in an extracted resting position. The generation of vacuum inside the suction cups ensures the gripping on the relative gluedflaps 111A and 111'A. Thehook 54 is then moved by means of translation into its engagement position with the inside of the glued side of the tray. Theouter suction cups 45 and thehook 54 are caused to rotate about afulcrum 47 placed at about the fold of the outer gluedflap 111A, through the engagement of alinear actuator 48 on a tiltingarm 49 rigidly connected in parallel to thearm 46. During the rotation step, thehook 54 helps to pull the gluedflap 111A, thus avoiding the detachment of theouter suction cup 45, thus creating a synergetic action for obtaining the detachment of the gluedflaps 111A and 111'A with the minimum deformation of thetray 111. Thehook 54 is then brought back to an extracted resting position. - According to the simplified embodiment without
hook 54, the closing and tearing cycle of the pair ofsuction cups suction cups outer suction cups 45 are caused to rotate about thefulcrum 47 placed at about the fold of the outer gluedflap 111A, through the engagement of thelinear actuator 48 on the tiltingarm 49 rigidly connected in parallel to thearm 46. - Different tear devices replacing or integrating the
outer suction cups 45 and thehook 54 described may also be part of the invention. - The suction
cup gripping head 42 also comprises a pair ofpresser elements 50 respectively placed at the tworemaining sides 111B of thetray 111, which are orthogonal to the gluedflaps 111A and 111'A. Eachpresser element 50, preferably provided with a wide flat thrusting surface, is hinged at the fold of theside 111B of thetray 111, orthogonal to the gluedflaps 111A and 111'A and connected to alinear actuator 51. Thepresser elements 50 rotate orthogonal to the tear direction of the outer gluedflap 111A to act each on a side orthogonal to the gluing side of the tray, to complete the opening of theorthogonal sides 111B and the flattening of the tray, according to what shown in figure 9. - The suction
cup gripping head 42 also comprises, in a position internal to the quadrilateral perimeter, a plurality of verticallinear actuators 52 arranged orthogonal to the plane of the tray, provided at the lower ends withsuction cups 53 adapted to keep theopen tray 111 raised and to facilitate its extraction from the suctioncup gripping head 42 for depositing it onto a stack of open trays by pushing the open tray downwards (figure 10). - The method of opening a paper or cardboard tray according to the present invention comprises the steps of:
- engaging glued
flaps 111A of the tray on opposite sides with a plurality ofinner suction cups 44 and with a tear device, such as a plurality ofouter suction cups 45 opposed to theinner suction cups 44 and/or ahook 54; - detaching each outer glued
flap 111A with a rotary action of the tear device and aligning it with such a rotary action to the plane of thetray 111; - flattening the two
remaining sides 111B of thetray 111, orthogonal to the gluedflaps 111A, 111'A, with a rotary action orthogonal to the first one through a pair of hingedpresser elements 50; - depositing the tray thus opened onto a stack of trays.
- The suction cup gripping head for the opening of a paper or cardboard tray and the relative method according to the present invention advantageously allow detaching the glued flaps without tearing the cardboard.
- The suction cup gripping head for the opening of a paper or cardboard tray and the relative method according to the present invention have the advantage of allowing the automated recycling of the trays.
- The suction cup gripping head for the opening of a paper or cardboard tray and the relative method thus conceived are susceptible to numerous modifications and variants, all falling within the invention; moreover, all the details may be replaced with technically equivalent elements. In practice, the materials used, as well as the dimensions, may be any according to technical requirements.
Claims (10)
- Suction cup gripping head for the opening of a paper or cardboard tray, identifying a quadrilateral perimeter of adjustable size, characterized in that it comprises four gripper elements (43), placed in pairs at the ends of two opposite sides of the perimeter, associable with pairs of opposite glued flaps, outer and inner, (111A, 111'A) of the tray (111), wherein each gripper element (43) is equipped with a first set of inner suction cups (44) that are engageable from the inside against said inner glued flap (111'A) of the tray, and a tear device that is engageable from the outside against said outer glued flap (111A) of the tray, said tear device being applied to an arm (46) tilting about a fulcrum (47) adapted to detach said outer glued flap (111A) of the tray with its own rotary movement.
- Suction cup head according to claim 1, characterized in that said tear device comprises a second set of suction cups (45) applied to said tilting arm (46).
- Suction cup head according to claim 1 or 2, characterized in that said tear device comprises a hook (54) movable for the engagement from the inside with the glued side of the tray (111), said hook (54) being applied to said tilting arm (46).
- Suction cup head according to any of the preceding claims, characterized in that it also comprises a pair of hinged presser elements (50), respectively placed at the two remaining sides (111B) of the tray (111), orthogonal to the glued flaps (111A, 111'A), adapted to act each on one side orthogonal to the gluing side of the tray, that complete the opening and the flattening of the tray.
- Suction cup head according to any of the preceding claims, characterized in that it comprises in a position internal to said quadrilateral perimeter a plurality of linear actuators (52) arranged orthogonal with respect to the plane of the tray, equipped at the lower ends with suction cups (53), adapted to keep the open tray raised and to facilitate its extraction from the suction cup head (42) for depositing it onto a stack of open trays.
- Method for opening a paper or cardboard tray, characterized in that it comprises the steps of:- engaging pairs of glued flaps (111A, 111'A) of the tray on opposite glued sides with a plurality of inner suction cups (44) and with a tear device;- detaching each outer glued flap (111A) and aligning it to the plane of the tray (111) with a rotary action of the tear device.
- Method according to claim 6, characterized in that a second set of outer suction cups (45) leans in a gripping manner onto said outer glued flap (111A).
- Method according to claims 6 or 7, characterized in that a hook (54) engages in a hooking manner on each of said opposite glued sides.
- Method according to any of the preceding claims, characterized in that it comprises the successive steps of:- flattening the remaining two sides (111B) of the tray (111), orthogonal to the glued flaps (111A, 111'A), with a rotary action orthogonal to the first one through a pair of hinged presser elements (50);- depositing the tray thus open onto a stack of trays.
- Method according to claim 9, characterized in that it comprises the step of pushing downwards the open tray for the extraction from said suction cup head (42) prior to its deposit onto said stack of trays.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUA2016A002846A ITUA20162846A1 (en) | 2016-04-22 | 2016-04-22 | HEAD OF SOCKET SUCKERS FOR THE OPENING OF A PAPER TRAY OR CARDBOARD AND ITS METHOD OF OPENING A TRAY. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3235746A1 true EP3235746A1 (en) | 2017-10-25 |
EP3235746B1 EP3235746B1 (en) | 2019-01-30 |
Family
ID=56684157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17167236.3A Active EP3235746B1 (en) | 2016-04-22 | 2017-04-20 | Suction cup gripping head for the opening of a paper or cardboard tray and relative method of opening a tray |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3235746B1 (en) |
ES (1) | ES2721199T3 (en) |
IT (1) | ITUA20162846A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109249472A (en) * | 2018-10-17 | 2019-01-22 | 宁波创源文化发展股份有限公司 | A kind of tearing automatically for paper card in irregular shape takes device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2105455A5 (en) * | 1970-09-08 | 1972-04-28 | Alexandre Pierre | |
JPS57142829A (en) * | 1981-02-27 | 1982-09-03 | Lion Corp | Automatic folding device for corrugated cardboard box, etc. |
JPS63307035A (en) * | 1987-05-29 | 1988-12-14 | Tokyo Jido Kikai Seisakusho:Kk | Apparatus for developing assembled tray |
EP1103468A1 (en) * | 1999-11-23 | 2001-05-30 | Hermann Müller Kunststofftechnik | Automatic system for removing overwraps |
-
2016
- 2016-04-22 IT ITUA2016A002846A patent/ITUA20162846A1/en unknown
-
2017
- 2017-04-20 EP EP17167236.3A patent/EP3235746B1/en active Active
- 2017-04-20 ES ES17167236T patent/ES2721199T3/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2105455A5 (en) * | 1970-09-08 | 1972-04-28 | Alexandre Pierre | |
JPS57142829A (en) * | 1981-02-27 | 1982-09-03 | Lion Corp | Automatic folding device for corrugated cardboard box, etc. |
JPS63307035A (en) * | 1987-05-29 | 1988-12-14 | Tokyo Jido Kikai Seisakusho:Kk | Apparatus for developing assembled tray |
EP1103468A1 (en) * | 1999-11-23 | 2001-05-30 | Hermann Müller Kunststofftechnik | Automatic system for removing overwraps |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109249472A (en) * | 2018-10-17 | 2019-01-22 | 宁波创源文化发展股份有限公司 | A kind of tearing automatically for paper card in irregular shape takes device |
CN109249472B (en) * | 2018-10-17 | 2024-05-03 | 宁波创源文化发展股份有限公司 | Automatic tearing device for irregular paper card |
Also Published As
Publication number | Publication date |
---|---|
ITUA20162846A1 (en) | 2017-10-22 |
ES2721199T3 (en) | 2019-07-29 |
EP3235746B1 (en) | 2019-01-30 |
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