EP0650893B1 - Device for erecting tubular flattened blanks in a case feeding line - Google Patents
Device for erecting tubular flattened blanks in a case feeding line Download PDFInfo
- Publication number
- EP0650893B1 EP0650893B1 EP94830510A EP94830510A EP0650893B1 EP 0650893 B1 EP0650893 B1 EP 0650893B1 EP 94830510 A EP94830510 A EP 94830510A EP 94830510 A EP94830510 A EP 94830510A EP 0650893 B1 EP0650893 B1 EP 0650893B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blank
- feeding line
- phase
- gripping means
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- 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
- B65B43/32—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by external pressure diagonally applied
- B65B43/325—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by external pressure diagonally applied to boxes, cartons or carton blanks
-
- 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
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/14—Feeding individual bags or carton blanks from piles or magazines
- B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
- B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
- B65B43/185—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers specially adapted for carton blanks
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
- B31B2100/002—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed
- B31B2100/0022—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed made from tubular webs or blanks, including by tube or bottom forming operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/74—Auxiliary operations
- B31B50/76—Opening and distending flattened articles
- B31B50/80—Pneumatically
Definitions
- the present invention relates to machines for erecting cases and/or boxes, starting from a tubular flattened blank.
- the present invention refers to a device that takes tubular flattened blanks from a magazine, prints them and conveys them to an erecting station connected with housing provided in a line for feeding the already formed cases.
- This device includes a conveyor equipped with sucker cups aimed at withdrawing the tubular flattened blanks from a magazine and conveying them to an opening station, where the blanks, still flattened, are gripped by special sucker cups, located opposed to the ones of the conveyor and therefore, they are opened due to the progressive moving away of the conveyor sucker cups from the ones of the opening station.
- the blank, opened in this manner, is released between the prongs of a conveyor.
- the main drawback of this device is that it can be used only for blanks of big size and only with relatively low operative speeds.
- Document US-A-4.348.853 discloses a case opening and sealing apparatus that comprises a magazine having a plurality of flattened blanks stacked therein, a conveyor underlying the magazine, and a plurality of suction cups for opening each case into tubular form for subsequent filling.
- Each forward case blank in the magazine is precisely ejected into proximity with the suction cups for opening purpose by a shuttle mechanism which functions to sequentially engage a lower edge of the case blank to initially prevent removal thereof from the magazine, move the case blank upwardly to release the lower edge thereof from the magazine, and push the case blank downwardly onto the conveyor and into close proximity with the suction cups which function to open the case into tubular form.
- the present invention proposes a device for erecting tubular flattened blanks in a cases feeding line, that starts from the above identified prior art, and like the device disclosed in the US-A-4.348.853 is capable of opening the blanks between the prongs of the feeding line.
- the object of the present invention is to modify the device as above mentioned to make it simple to be constructed, safely reliable and capable of operating at high productive speed as well as allowing for opening blanks of various sizes.
- the reference number 1 indicates a device for erecting tubular flattened blanks 2, comprising withdrawing means 20, a conveying suction belt 4, an erecting station 40 and a feeding line 10 for the cases 50.
- Each tubular blank 2 when flattened, shows two faces, internal 51 and external 52, respectively, an upper corner 15 and a lower corner 16.
- the faces 51 and 52 of the blank 2 normally have creasings that define, among other things, a bottom wall 2a, an upper wall 2d and lateral walls 2b, 2c, adjacent respectively to the upper corner 15 and the lower corner 16.
- the feeding line 10 is equipped with consecutive couples of prongs 11, each couple including a front prong 11a and a rear prong 11b respectively, which are orthogonal to the running surface 12 of the same line, and which form, together with the surface 12, a housing 60 of a case 50.
- the feeding line moves forward step by step and in phase relation with operation of the erecting station 40.
- the means 20 that withdraws the flattened blanks 2 from a magazine 3, includes an operative unit 21 comprising an articulated parallelogram 29 and an arm 23. One end of the arm 23 is bound to one side of the parallelogram 29.
- the parallelogram 29 (in a known, not illustrated way) rotates around its hinge 22, opposite to the arm 23, causing also axial translation of the arm 23 in the advancement direction D of the conveying suction belt 4.
- Such belt is operated continuously and has the task of conveying, by using known and not illustrated suction means, the flattened blanks 2 released on the same belt by the withdrawing means 20 during the release phase.
- the erecting station 40 is positioned near to the terminal end of the belt 4, and includes three operative units 41, 42, 43, respectively first, second and third.
- the first operative unit 41 is constituted by a first lever 49a, hinged at one side to a not illustrated actuator and at the other side to one end of a second lever 49b.
- a first suction gripping means 41a for gripping each tubular flattened blank 2, is fastened to the other end of the said second lever 49b.
- the first operative unit 41 comprises also a third lever 49c, hinged at one side to the supporting means of the conveying belt 4, and at the other side to the lever 49b, in particular to a part thereof located near to the first gripping means 41a.
- the first operative unit 41 imposes an alternative motion to the first gripping means 41a, that moves between two extreme positions, respectively Q and L.
- the first gripping means 41a When the first gripping means 41a is in the first position Q, it grips the lateral wall 2c of the flattened blank 2, while when the first gripping means 41a is in the second position L it moves away from the blank 2, after that this latter blank has been opened to form the case 50.
- the second operative unit 42 includes an arm 44, having one end hinged on a pin 45 that is positioned in correspondence to the intersection point of the plane defined by the lowering run 4a of the conveying belt 4, with the running surface 12.
- the other end of the arm 44 is provided with second suction gripping means 42a (sucker cup).
- the second operative unit 42 causes the oscillation of the second gripping means 42a that moves between two extreme positions, respectively V and O. In the first position V the bottom wall 2a of the blank 2 is engaged by the gripping means 42a, while in the second position O the blank 2 is released after having been opened to form the case 50.
- the third operative unit 43 includes an articulated parallelogram and a pusher 43a having one end bound to one side of the same parallelogram.
- the third operative unit 43 has the task of moving alternative the pusher 43a between two extreme positions, respectively I and S. In the first position I the pusher 43a is located outside the housing 60 during the dwell phase A of the feeding line 10, while in the second position S the pusher 43a is located over the open section of the same housing 60 that contains the case 50.
- the task of the pusher 43a is to keep the same case 50 in an open position between the prongs 11a, 11b of the feeding line 10 during the phase Z when the line moves forwards.
- the device 1 is equipped also with means 30 for printing stamping the flattened blanks 2, situated upstream of the erecting station 40.
- Said printing means 30 comprise a couple of cylinders 31, mounted in tangential relation and rotating in opposed directions.
- the operation of the device 1 is basically based on the phase relation existing between the various operative phases of the withdrawing means 20, the erecting station 40 and the feeding line 10.
- a complete cycle of opening a flattened blank 2 to form a case 50 is described in the following.
- the withdrawing means 20 After that the conveying suction belt 4 has been started up, the withdrawing means 20, by activating the operative unit 21, begins the phase P, in which the sucker cups 24 grip the first blank 2 (considering the loading order in the magazine) on the internal face 51 thereof.
- the release phase R begins, in which the blank is first accelerated in the direction of the belt 4 motion, by the axial translation of the arm 23, so as to reduce practically to zero the relative speed between the belt 4 and the blank.
- sucker cups 24 release the blank 2 that is gripped by the suction belt 4 through known and not illustrated sucking means made in the same belt and kept always active.
- the belt 4 conveys the blank 2 that passes between the printing means 30 which print or not, depending on their arrangement, the internal face 51 and/or the external face 52 of the blank 2.
- the feeding line 10 passes from the dwell phase A to the advancement phase Z, at the end of which, i.e. in correspondence with a new stop phase A, the internal wall 13 of the front prong 11a is coplanar with the lowering run 4a of the belt 4.
- the blank 2 reaches the terminal end of the belt 4 and, as illustrated in the Figure 3, passes between the sucker cup 41a (at the beginning of the position Q) and the sucker cup 42a (at the beginning of the position V), placing its lower corner 16 in correspondence with the axis of the pin 45.
- the internal face 51 rests on the internal wall 13 of the prong 11a. In that moment, the sucker cups 41a and 42a are activated so as to grip respectively the lateral wall 2c and the bottom wall 2a of the blank 2.
- the first operative unit 41 remains in the position Q while the second operative unit 42 moves the arm 44 so as to progressively unfold the blank 2, until it is completely open to form the case 50 in correspondence with an intermediate position E (illustrated in Figure 5).
- the bottom wall 2a of the same blank is brought to contact the running surface 12 of the line 10 while the lateral wall 2b adheres to the internal wall 14 of the rear prong 11b.
- the feeding line 10 moves forward by one step on the basis on the activation of the phase Z, at the end of which the operative unit 43 passes from the position S to the position I.
- Such erecting station 40 includes a frame 70, a first actuator 76 and a second actuator 75 (cylinder).
- the frame 70 includes a base 71 situated below the feeding line 10 and arranged parallel thereto.
- a support 72 made integral with the base 71 and arranged perpendicular thereto, extends upwardly beyond the line 10 through a portion longer than the height of the blank 2.
- a pusher 74 is attached to the free end of the support 72, overhanging the base 71 and arranged parallel thereto.
- the pusher 74 is not longer than the base 71.
- the base 71 features a slope 73 attached to the its free end and having a sloping surface 73 turned outwards with respect to the frame 70 and designed to guide the blank 2 during the unfolding phase W of the same blank.
- the first actuator 76 is bound to the support 72, and perpendicular thereto, near the pusher 74, and it supports a gripping means 77 for gripping the blank 2.
- Said gripping means 77 is designed to be moved alternatively by the first actuator 76 from a first extreme position H, wherein the distance between the gripping means 77 and the support 72 is maximum, to a second intermediate position K, in which the means 77 are nearer to the support 72, and to a third extreme position J, in which the gripping means 77 are the nearest to the support 72.
- the position H is relative to the gripping phase, i.e. when the blank 2 is gripped by the gripping means 77, while the intermediate position K corresponds to the unfolding phase W of the same blank, and finally, the phase J is relative to a releasing phase F of the case 50.
- the gripping means 77 includes a sucker cup 78 supported by a stem 79 having the minimum and maximum strokes corresponding respectively to a position C, in which the distance between said sucker cup 78 and the blank is the biggest, and to a position B, in which the sucker cup 78 is the nearest to the same blank.
- the second actuator 75 (cylinder) is bound to the base 71 and is designed to move alternatively the frame 70, in direction orthogonal to the feeding line 10, between two extreme positions, respectively a raised position X and a lowered position Y, respectively set in phase relation with the dwell phase A and the advancement phase Z of the same feeding line, so as to delimit, correspondingly, the maximum and minimum protruding of the support 72 with respect to the feeding line 10.
- the cylinder 75 is shifted to the position X and the first actuator 76 to the position K before the blank 2 reaches the erection station 40.
- the actuator 76 passes from the position K to the position H so that the gripping means 77, passing from the position C to the position B, grips the lateral wall 2b of the blank 2.
- the gripping means 77 returns to the position C and, at the same time, the first actuator 76, returning to the position K, causes the unfolding of the blank 2 both because the lower corner 16 and the bottom wall 2a of the blank slide over the sloping surface 73a of the slope 73, and because the upper corner 15 of the blank slides against the wall of the pusher 74 that faces the base 71.
- the complete opening of the blank 2 takes place during the passage of the frame 70 from the position X to the position Y, so as to obtain a correspondent case 50.
- the feeding line 10 is made to pass from the phase A to the phase Z while the frame 70 is shifted from the position Y to the position X, in order to start again a new erecting cycle for a subsequent tubular flattened blank.
- the erecting station 40 includes a frame 170 and an operative unit 80.
- the frame 170 includes a base 171 situated below the feeding line 10 and arranged parallel thereto.
- a support 172 made integral with the base 171 and arranged perpendicular thereto, extends upwardly beyond the line 10 through a portion that is not lower than the height of the blank 2.
- a striker 174 is attached to the free end of the support 172, overhanging the base 171 and arranged parallel thereto.
- a protrusion 175, attached orthogonally to the same feeding line 10, is turned toward the base 171 and oriented so as to have the internal surface 175a, with reference to the housing 60, coplanar with the internal surface 14 of the said rear prong 11b, during the dwell phase A of the feeding line 10.
- Known and not illustrated means move alternatively the frame 170 in direction orthogonal to the feeding line 10, between two extreme positions, respectively a raised position X, illustrated in Figure 12, and a lowered position Y, shown in Figure 14.
- the operative unit 80 includes an arm 81 having one end hinged below the running plane 12, near to the front prong 11a, and the other end equipped with gripping means 82 (sucker cup) turned upwards.
- the operative unit 80 oscillates between two extreme positions, respectively a first position M and a second position T.
- the arm 81 In the first position M, the arm 81 is vertical or inclined in upstream direction with respect to the advancement direction of the feeding line 10: in such a situation, the length of the part of said arm comprised between the running plane 12 and the sucker cup 82 must be smaller than the longitudinal extension of the bottom wall 2a of the blank 2.
- the sucker cup 82 first supports and subsequently grips, when activated, the bottom wall 2a of the blank.
- the frame 170 is moved to the position X, the operative unit 80 is moved to the position M and the feeding line 10 is set in the phase A.
- the blank After the blank has reached the erecting station, it rests on the sucker cup 82 performing a movement, indicated with the arrow D in the figure 12, due to both its kinetic energy, and to the fact that the lowering run 4a of the belt 4 is no longer sucking and also because the lower corner 16 is constrained between the prong 11a and the arm 81.
- the sucker cup 82 is activated and the operative unit 80 grips the bottom wall 32a of the blank 2, and, with reference to the Figure 13, the blank unfolding phase W is activated, in which the frame 170 passes progressively from the position X to the position Y and the operative unit 80 passes from the position M to the position T.
- the blank 2 is unfolded because of the initial sliding of the upper corner 15 of the same blank 2 on the internal wall 175a of the protrusion 175 or on the wall of the striker 174, until it definitely fits in the angle between the protrusion 175 and the striker 174.
- the operative unit 80 passes to an intermediate position N, shown in the Figure 14.
- the sucker cup 82 previously deactivated, detaches and progressively moves away from the bottom wall 2a of the blank 2 until it reaches the second position T in which the same sucker cup is below the feeding line 10.
- the complete opening of the blank 2 so as to obtain a correspondent case 50 takes place during the passage of the operative unit from the position N to the position T, activated by the ultimate part of lowering of the frame 170, in cooperation with the walls of the housing 60, inside which the case 50 is kept by the pressure of the striker 174 on the upper wall 2d of the blank 2.
- the feeding line 10 is made to pass from the phase A to the phase Z and the frame 170 is shifted from the position Y to the position X in order to start again a new erecting cycle for a subsequent tubular flattened blank, while the case 50, just formed, is kept inside the housing 60 by a fixed stop 176 situated downstream of the frame 170, at the same height reached by the striker 174 when the frame 170 is in position Y.
- the main advantage of the present invention is that it provides a device for erecting tubular flattened blanks in a case feeding line operated step by step, capable of opening the same blanks directly between the prongs of the feeding line.
- a further advantage of the present invention results from the fact that the device is relatively simple in construction, presents a proved reliability and is capable of operating at high throughput speeds. Furthermore it allows for opening blanks of various sizes.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Discharge By Other Means (AREA)
Description
- The present invention relates to machines for erecting cases and/or boxes, starting from a tubular flattened blank.
- In particular, the present invention refers to a device that takes tubular flattened blanks from a magazine, prints them and conveys them to an erecting station connected with housing provided in a line for feeding the already formed cases.
- For a long time there have been known automatic machines capable of withdrawing tubular flattened blanks from a magazine, of erecting the cases by positively opening the blanks, and then of collocating them onto a conveying line.
- In the US Patent N. 3.783.752 of H.J. Langen & Sons Ltd., Rexdale, Ontario, Canada, a mechanical blank handling device is described.
- This device includes a conveyor equipped with sucker cups aimed at withdrawing the tubular flattened blanks from a magazine and conveying them to an opening station, where the blanks, still flattened, are gripped by special sucker cups, located opposed to the ones of the conveyor and therefore, they are opened due to the progressive moving away of the conveyor sucker cups from the ones of the opening station.
- The blank, opened in this manner, is released between the prongs of a conveyor.
- The main drawback of this device is that it can be used only for blanks of big size and only with relatively low operative speeds.
- Another drawback results from the fact that the blank is opened before being placed between the conveyor prongs.
- Still a further disadvantage arises from the fact that such a device must use special sensors to detect the presence of the blank in order to keep the suckers, that grip the adjacent walls of the same blank, in correct phase relation.
- Another disadvantage results from the fact that the device is not provided with a blank printing station that intervenes on the blanks before they are placed onto the conveyor.
- Document US-A-4.348.853 discloses a case opening and sealing apparatus that comprises a magazine having a plurality of flattened blanks stacked therein, a conveyor underlying the magazine, and a plurality of suction cups for opening each case into tubular form for subsequent filling.
- Each forward case blank in the magazine is precisely ejected into proximity with the suction cups for opening purpose by a shuttle mechanism which functions to sequentially engage a lower edge of the case blank to initially prevent removal thereof from the magazine, move the case blank upwardly to release the lower edge thereof from the magazine, and push the case blank downwardly onto the conveyor and into close proximity with the suction cups which function to open the case into tubular form.
- The present invention, as defined in
Claim 1, proposes a device for erecting tubular flattened blanks in a cases feeding line, that starts from the above identified prior art, and like the device disclosed in the US-A-4.348.853 is capable of opening the blanks between the prongs of the feeding line. - The object of the present invention is to modify the device as above mentioned to make it simple to be constructed, safely reliable and capable of operating at high productive speed as well as allowing for opening blanks of various sizes.
- The above mentioned objects are obtained in accordance with the contents of the claims.
- The characteristic features of the present invention are pointed out in the following with reference to the attached drawings, in which:
- Fig. 1 shows a lateral schematic view of the device being the subject of the present invention, in the phase of withdrawing the flattened blank from the magazine;
- Fig. 2 shows the device of the Fig. 1 in the phase of transporting the flattened blank;
- Figs, 3, 4, 5 and 6 show a lateral view, in enlarged scale, of the opening station of the device of the Fig. 1, respectively in the phases in which: the blank is still flattened, is partially unfolded, is completely open and at the end is transported by the conveyor;
- Fig. 7 shows a lateral schematic view of a second embodiment of the device being the subject of the present invention;
- Figs. 8, 9, 10 and 11 show lateral, enlarged views of the opening station of the device illustrated in Fig. 7, respectively in the phases of flattening and unfolding of the tubular blank, and in the phases of complete opening and transporting of the so formed case;
- Figs. 12, 13, 14 and 15 show lateral enlarged views of a third embodiment of the opening station of the device, respectively in the phases of flattening and unfolding the tubular blank and in the phases of complete opening and transporting the so formed case.
- With reference to the Figures from 1 to 6, the
reference number 1 indicates a device for erecting tubularflattened blanks 2, comprising withdrawingmeans 20, aconveying suction belt 4, an erectingstation 40 and afeeding line 10 for thecases 50. - Each tubular blank 2, when flattened, shows two faces, internal 51 and external 52, respectively, an
upper corner 15 and alower corner 16. - The
faces bottom wall 2a, anupper wall 2d andlateral walls upper corner 15 and thelower corner 16. - The
feeding line 10 is equipped with consecutive couples ofprongs 11, each couple including afront prong 11a and arear prong 11b respectively, which are orthogonal to the runningsurface 12 of the same line, and which form, together with thesurface 12, ahousing 60 of acase 50. - The feeding line moves forward step by step and in phase relation with operation of the erecting
station 40. - The
means 20 that withdraws theflattened blanks 2 from amagazine 3, includes anoperative unit 21 comprising an articulatedparallelogram 29 and anarm 23. One end of thearm 23 is bound to one side of theparallelogram 29. - The
arm 23, provided in its free end with suction gripping means 24 (sucker cups) that grip the flattened blank 2, oscillates alternatively between two extreme positions, that is a position P where the blank 2 is withdrawn, and a position R where the blank is released, respectively. - When the release phase R is approaching, the parallelogram 29 (in a known, not illustrated way) rotates around its
hinge 22, opposite to thearm 23, causing also axial translation of thearm 23 in the advancement direction D of theconveying suction belt 4. - Such belt is operated continuously and has the task of conveying, by using known and not illustrated suction means, the
flattened blanks 2 released on the same belt by the withdrawingmeans 20 during the release phase. - The erecting
station 40 is positioned near to the terminal end of thebelt 4, and includes threeoperative units - The first
operative unit 41 is constituted by afirst lever 49a, hinged at one side to a not illustrated actuator and at the other side to one end of asecond lever 49b. - A first suction gripping means 41a (sucker cup) for gripping each tubular flattened blank 2, is fastened to the other end of the said
second lever 49b. - The first
operative unit 41 comprises also athird lever 49c, hinged at one side to the supporting means of theconveying belt 4, and at the other side to thelever 49b, in particular to a part thereof located near to the first gripping means 41a. - The first
operative unit 41 imposes an alternative motion to the first gripping means 41a, that moves between two extreme positions, respectively Q and L. When the first gripping means 41a is in the first position Q, it grips thelateral wall 2c of the flattened blank 2, while when the first gripping means 41a is in the second position L it moves away from the blank 2, after that this latter blank has been opened to form thecase 50. - The second
operative unit 42 includes anarm 44, having one end hinged on apin 45 that is positioned in correspondence to the intersection point of the plane defined by the loweringrun 4a of theconveying belt 4, with the runningsurface 12. - The other end of the
arm 44 is provided with second suction gripping means 42a (sucker cup). - The second
operative unit 42 causes the oscillation of the second gripping means 42a that moves between two extreme positions, respectively V and O. In the first position V thebottom wall 2a of the blank 2 is engaged by the gripping means 42a, while in the second position O the blank 2 is released after having been opened to form thecase 50. - The third
operative unit 43 includes an articulated parallelogram and apusher 43a having one end bound to one side of the same parallelogram. - The third
operative unit 43 has the task of moving alternative thepusher 43a between two extreme positions, respectively I and S. In the first position I thepusher 43a is located outside thehousing 60 during the dwell phase A of thefeeding line 10, while in the second position S thepusher 43a is located over the open section of thesame housing 60 that contains thecase 50. - The task of the
pusher 43a is to keep thesame case 50 in an open position between theprongs feeding line 10 during the phase Z when the line moves forwards. - The
device 1 is equipped also withmeans 30 for printing stamping theflattened blanks 2, situated upstream of the erectingstation 40. Said printing means 30 comprise a couple ofcylinders 31, mounted in tangential relation and rotating in opposed directions. - Each blank 2, while it is transported by the
suction belt 4, passes between thecylinders 31 which perform a printing operation at least one side of the same flattened blank. - The operation of the
device 1 is basically based on the phase relation existing between the various operative phases of the withdrawingmeans 20, the erectingstation 40 and thefeeding line 10. - A complete cycle of opening a flattened blank 2 to form a
case 50 is described in the following. - After that the
conveying suction belt 4 has been started up, the withdrawingmeans 20, by activating theoperative unit 21, begins the phase P, in which thesucker cups 24 grip the first blank 2 (considering the loading order in the magazine) on theinternal face 51 thereof. - Subsequent movement of the
operative unit 21, mainly guided by cam means, therefore by itsarm 23, causes the blank 2 to be brought near theconveying belt 4. - At this point the release phase R begins, in which the blank is first accelerated in the direction of the
belt 4 motion, by the axial translation of thearm 23, so as to reduce practically to zero the relative speed between thebelt 4 and the blank. - Then the
sucker cups 24 release the blank 2 that is gripped by thesuction belt 4 through known and not illustrated sucking means made in the same belt and kept always active. - Therefore, the
belt 4 conveys the blank 2 that passes between the printing means 30 which print or not, depending on their arrangement, theinternal face 51 and/or theexternal face 52 of the blank 2. - While the blank 2 is conveyed by the
belt 4, thefeeding line 10 passes from the dwell phase A to the advancement phase Z, at the end of which, i.e. in correspondence with a new stop phase A, theinternal wall 13 of thefront prong 11a is coplanar with the loweringrun 4a of thebelt 4. - Therefore, the blank 2 reaches the terminal end of the
belt 4 and, as illustrated in the Figure 3, passes between thesucker cup 41a (at the beginning of the position Q) and thesucker cup 42a (at the beginning of the position V), placing itslower corner 16 in correspondence with the axis of thepin 45. - The
internal face 51 rests on theinternal wall 13 of theprong 11a. In that moment, thesucker cups lateral wall 2c and thebottom wall 2a of the blank 2. - The first
operative unit 41 remains in the position Q while the secondoperative unit 42 moves thearm 44 so as to progressively unfold the blank 2, until it is completely open to form thecase 50 in correspondence with an intermediate position E (illustrated in Figure 5). - In the position E, the
bottom wall 2a of the same blank is brought to contact the runningsurface 12 of theline 10 while thelateral wall 2b adheres to theinternal wall 14 of therear prong 11b. - When such intermediate position E is left, the first operative unit passes to the position L and the second operative unit passes to the position O.
- The
feeding line 10 moves forward by one step on the basis on the activation of the phase Z, at the end of which theoperative unit 43 passes from the position S to the position I. - Thus, a new cycle for erecting tubular
flattened blanks 2 starts. - Fixed strikers, known and not illustrated, are provided downstream of the
pusher 43a, and perform the same function as this latter. - With reference to the Figures from 7 to 11, a second embodiment of the erecting
station 40 of thedevice 1, subject of the present invention, will be described in the following. - Such erecting
station 40 includes aframe 70, afirst actuator 76 and a second actuator 75 (cylinder). - The
frame 70 includes a base 71 situated below thefeeding line 10 and arranged parallel thereto. - A
support 72, made integral with thebase 71 and arranged perpendicular thereto, extends upwardly beyond theline 10 through a portion longer than the height of the blank 2. - A
pusher 74 is attached to the free end of thesupport 72, overhanging thebase 71 and arranged parallel thereto. Thepusher 74 is not longer than thebase 71. - The base 71 features a
slope 73 attached to the its free end and having a slopingsurface 73 turned outwards with respect to theframe 70 and designed to guide the blank 2 during the unfolding phase W of the same blank. - The
first actuator 76 is bound to thesupport 72, and perpendicular thereto, near thepusher 74, and it supports a grippingmeans 77 for gripping the blank 2. - Said gripping
means 77 is designed to be moved alternatively by thefirst actuator 76 from a first extreme position H, wherein the distance between the grippingmeans 77 and thesupport 72 is maximum, to a second intermediate position K, in which themeans 77 are nearer to thesupport 72, and to a third extreme position J, in which the grippingmeans 77 are the nearest to thesupport 72. - The position H is relative to the gripping phase, i.e. when the blank 2 is gripped by the gripping
means 77, while the intermediate position K corresponds to the unfolding phase W of the same blank, and finally, the phase J is relative to a releasing phase F of thecase 50. - The gripping means 77 includes a
sucker cup 78 supported by astem 79 having the minimum and maximum strokes corresponding respectively to a position C, in which the distance between saidsucker cup 78 and the blank is the biggest, and to a position B, in which thesucker cup 78 is the nearest to the same blank. - The second actuator 75 (cylinder) is bound to the
base 71 and is designed to move alternatively theframe 70, in direction orthogonal to thefeeding line 10, between two extreme positions, respectively a raised position X and a lowered position Y, respectively set in phase relation with the dwell phase A and the advancement phase Z of the same feeding line, so as to delimit, correspondingly, the maximum and minimum protruding of thesupport 72 with respect to thefeeding line 10. - As far as the operation of the
device 1 in the second embodiment is concerned, there are not changes in the phases order according to which the blank 2 is withdrawn from themagazine 3 and conveyed by thebelt 4, through the printing means 30, until theerection station 40, i.e. until theinternal face 51 rests on theinternal wall 13 of theprong 11a, while itslower corner 16 is fitted in between theinternal wall 13 and theslope 73, as it is shown in Figure 8. - The
cylinder 75 is shifted to the position X and thefirst actuator 76 to the position K before the blank 2 reaches theerection station 40. - When the blank 2 has reached the
erection station 40, the actuator 76 passes from the position K to the position H so that the grippingmeans 77, passing from the position C to the position B, grips thelateral wall 2b of the blank 2. - At this point, with reference to Figure 9, the gripping means 77 returns to the position C and, at the same time, the
first actuator 76, returning to the position K, causes the unfolding of the blank 2 both because thelower corner 16 and thebottom wall 2a of the blank slide over thesloping surface 73a of theslope 73, and because theupper corner 15 of the blank slides against the wall of thepusher 74 that faces thebase 71. - As illustrated in Figure 10, the complete opening of the blank 2 takes place during the passage of the
frame 70 from the position X to the position Y, so as to obtain acorrespondent case 50. - When the
frame 70 has passed from the position X to the position Y, the gripping means 77 releases theface 52 and thefirst actuator 76 passes from the position K to the position J, while thecase 50 is kept inside thehousing 60 by thepusher 74, as it results from the Figure 11. - The
feeding line 10 is made to pass from the phase A to the phase Z while theframe 70 is shifted from the position Y to the position X, in order to start again a new erecting cycle for a subsequent tubular flattened blank. - With reference to the Figures from 12 to 15, a third embodiment of the erecting
station 40 is described in the following. - The erecting
station 40 includes aframe 170 and anoperative unit 80. Theframe 170 includes a base 171 situated below thefeeding line 10 and arranged parallel thereto. - A
support 172, made integral with thebase 171 and arranged perpendicular thereto, extends upwardly beyond theline 10 through a portion that is not lower than the height of the blank 2. - A
striker 174 is attached to the free end of thesupport 172, overhanging thebase 171 and arranged parallel thereto. - A
protrusion 175, attached orthogonally to thesame feeding line 10, is turned toward thebase 171 and oriented so as to have theinternal surface 175a, with reference to thehousing 60, coplanar with theinternal surface 14 of the saidrear prong 11b, during the dwell phase A of thefeeding line 10. - Known and not illustrated means move alternatively the
frame 170 in direction orthogonal to thefeeding line 10, between two extreme positions, respectively a raised position X, illustrated in Figure 12, and a lowered position Y, shown in Figure 14. - These extreme positions X and Y, which are made to occur respectively in phase relation with the dwell phase A and the advancement phase Z of the
feeding line 10, define, correspondingly, the maximum and minimum protrusion of the citedsupport 172 with respect to thefeeding line 10. - The
operative unit 80 includes anarm 81 having one end hinged below the runningplane 12, near to thefront prong 11a, and the other end equipped with gripping means 82 (sucker cup) turned upwards. - The
operative unit 80 oscillates between two extreme positions, respectively a first position M and a second position T. - In the first position M, the
arm 81 is vertical or inclined in upstream direction with respect to the advancement direction of the feeding line 10: in such a situation, the length of the part of said arm comprised between the runningplane 12 and thesucker cup 82 must be smaller than the longitudinal extension of thebottom wall 2a of the blank 2. - Also in the first position M, that occurs in synchrony with the dwell phase A of the
feeding line 10, thesucker cup 82 first supports and subsequently grips, when activated, thebottom wall 2a of the blank. - In the second position T
such arm 81 is directed upwards and situated below the runningplane 12. - As far as the operation of the
device 1 in the third embodiment is concerned, there are not changes in the order of the phases in which the blank 2 is withdrawn from themagazine 3 and conveyed by thebelt 4, through the printing means 30, until theerection station 40, i.e. until theinternal face 51 rests on theinternal wall 13 of theprong 11a, while itslower corner 16 is fitted in between theinternal wall 13 and thearm 81 located in the position M, as it is shown in Figure 12. - Before the blank 2 has reached the erecting
station 40, theframe 170 is moved to the position X, theoperative unit 80 is moved to the position M and thefeeding line 10 is set in the phase A. - After the blank has reached the erecting station, it rests on the
sucker cup 82 performing a movement, indicated with the arrow D in the figure 12, due to both its kinetic energy, and to the fact that the loweringrun 4a of thebelt 4 is no longer sucking and also because thelower corner 16 is constrained between theprong 11a and thearm 81. - At this point, the
sucker cup 82 is activated and theoperative unit 80 grips the bottom wall 32a of the blank 2, and, with reference to the Figure 13, the blank unfolding phase W is activated, in which theframe 170 passes progressively from the position X to the position Y and theoperative unit 80 passes from the position M to the position T. - The blank 2 is unfolded because of the initial sliding of the
upper corner 15 of the same blank 2 on theinternal wall 175a of theprotrusion 175 or on the wall of thestriker 174, until it definitely fits in the angle between theprotrusion 175 and thestriker 174. - Therefore, the
operative unit 80 passes to an intermediate position N, shown in the Figure 14. - In this position, the
sucker cup 82, previously deactivated, detaches and progressively moves away from thebottom wall 2a of the blank 2 until it reaches the second position T in which the same sucker cup is below thefeeding line 10. - As illustrated in Figure 15, the complete opening of the blank 2 so as to obtain a
correspondent case 50, takes place during the passage of the operative unit from the position N to the position T, activated by the ultimate part of lowering of theframe 170, in cooperation with the walls of thehousing 60, inside which thecase 50 is kept by the pressure of thestriker 174 on theupper wall 2d of the blank 2. - The
feeding line 10 is made to pass from the phase A to the phase Z and theframe 170 is shifted from the position Y to the position X in order to start again a new erecting cycle for a subsequent tubular flattened blank, while thecase 50, just formed, is kept inside thehousing 60 by afixed stop 176 situated downstream of theframe 170, at the same height reached by thestriker 174 when theframe 170 is in position Y. - The main advantage of the present invention is that it provides a device for erecting tubular flattened blanks in a case feeding line operated step by step, capable of opening the same blanks directly between the prongs of the feeding line.
- A further advantage of the present invention results from the fact that the device is relatively simple in construction, presents a proved reliability and is capable of operating at high throughput speeds. Furthermore it allows for opening blanks of various sizes.
Claims (8)
- Device for erecting tubular flattened blanks, these blanks having creasing lines which define, in each blank, a bottom wall (2a), lateral walls (2b,2c), and an upper wall (2d), the device being mounted along a case feeding line (10) that moves forward step by step and that features a series of consecutive housings (60), each of which is delimited by a running plane (12) of the above mentioned feeding line (10), and by consecutive prongs (11), arranged orthogonal to the same running plane, with said device (1) including means (20) for withdrawing flattened blanks (2) from a magazine (3), and an erecting station (40) provided with means to grip each blank (2) and to erect it so as to obtain the correspondent case (50) located inside the one of the above mentioned housings (60) during a dwell phase (A) of the cited feeding line (10) that is moved in phase relation with the operation of said station (40), characterised in that said withdrawing means include an operative unit (21) that supports an arm (23) equipped at its end with gripping means (24) and pivoting about its other end alternatively between two extreme positions, respectively a position (P) wherein the above mentioned blank (2) is gripped, and a position (R) wherein the said blank (2) is released, with said operative unit (21) capable of translating axially said arm (23) during a release phase wherein said arm is in said release position (R), with a conveying suction belt (4), operated continuously, which receives flattened blanks (2) released by the withdrawing means (20) during the release phase, and conveys said flattened blanks in the direction of translation of said arm (23) towards said erecting station (40).
- Device, according to claim 1,, characterised in that the operative unit (21) connected to said withdrawing means (20) includes an articulated parallelogram (29) made to oscillate with respect to an articulation hinge (22) of the same parallelogram, with the cited arm (23) bound to the side of the parallelogram opposite to the side related to the said hinge (22).
- Device, according to claim 1, characterised in that said erecting station (40) comprises:- a first operative unit (41), including a series of levers, hinged one to another, one of these levers having, attached at one end, at least one first gripping means (41a) designed to grip each tubular flattened blank (2), said first operative unit (41) being able to carry the said first gripping means through an alternative motion between two extreme positions, respectively a first position Q in which the lateral wall (2c) of the flattened blank (2) is withdrawn by the said first gripping means (41a), and a second position (L) in which the first gripping means (41a) are moved away from the said blank (2), after that the blank has been opened to form the above mentioned case (50);- a second operative unit (42) including at least one arm (44) having one end hinged to a point corresponding to the intersection point of a first prong (11a) and the running surface (12), and having the other end provided with second suction gripping means (42a), with said second operative unit (42) bringing said second gripping means (42a) through an oscillating motion between two extreme positions, respectively a first position (V), in which the bottom wall (2a) of the blank (2) is gripped by said gripping means (42a), and a second position (O) in which the said blank (2), shaped to form the said case (50), is released between the above mentioned prongs (11);- an a third operative unit (43), that includes a parallelogram with at least one pusher (43a) bound thereto, so that the pusher (43a) is caused to reciprocate alternatively between two extreme positions, respectively a first position (I), in which the pusher (43a) does not insert into the said housing (60) during the cited dwell phase (A) of the feeding line (10), and a second position (S) in which the said pusher (43a) is placed over the open part of the same housing (60) containing the cited case (50), with said pusher (43a) designed to keep the said case in the open position inside the prongs (11a,11b) of the feeding line (10) during its advancement phase (Z).
- Device, according to claim 1,, characterised in that said erecting station (40) comprises:- a frame (70), including a base (71) situated below the said feeding line (10), a support (72), made integral with the base (71) and extending upwardly beyond the line (10) through a portion that is not shorter than the height of the blank (2), and a pusher (74) that is attached to the free end of the support (72), overhanging the base (71) and arranged parallel thereto, with said base (71) featuring a slope (73) attached to its free end and designed to guide the blank (2) during the unfolding phase (W) of the same blank;- a first actuator (76) orthogonally bound to the support (72) near the said pusher (74) and supporting at least one gripping means (77) designed to grip the said blank (2), said gripping means (77) being moved alternatively by the said first actuator (76) from a first extreme position (H), wherein the distance between said gripping means (77) and the said support (72) is maximum, to a second intermediate position (K), in which the said means (77) are nearer to the said support (72), and to a third extreme position (J), in which the said means (77) are the nearest to the said support (72), with said first extreme position (H) being relative to the gripping phase of the said blank (2) by said gripping means (77), and with said second intermediate position (K) corresponding to the unfolding phase (W) of the same blank, and with said third position (J) being relative to a releasing phase (F) of the said case (50);- and a second actuator (75), bound to the said base (71) and designed to move said frame (70), in direction orthogonal to the said feeding line (10), between two extreme positions, respectively a raised position (X), set in phase relation with the dwell phase (A) of the said feeding line (10), and lowered (Y), set in phase relation with the advancement phase (Z) of the same feeding line, so as to delimit, correspondingly, the maximum and minimum protruding of the said support (72) with respect to the feeding line (10), the lowering of the said frame (70), activated in phase relation with the passage of the said first actuator (76) from the said first position (H) to the third position (K), causing first the unfolding of the said blank (2), due to the sliding and guiding action of the said slope (73) onto the said bottom wall (2a) of the blank (2), and then the opening of the blank (2) inside the said housing (60) to form a case (50) therein.
- Device, according to claim 4, characterised in that said gripping means (77) includes a sucker cup (78) supported by a stem (79) provided with minimum and maximum strokes corresponding respectively to a position (C) in which the distance between said sucker cup (78) and the said blank (2) is maximum, and a position (B) in which said sucker cup (78) is nearest to the same blank (2).
- Device, according to claim 4, characterised in that said slope (73) has a sloping surface (73a) turned outwards with respect to the said frame (70).
- Device, according to claim 1, characterised in that said erecting station (40) comprises:- a frame (170), including a base (171) situated below the said feeding line (10), a support (172), made integral with the base (171) and extending upwardly beyond the line (10) through a portion that is not shorter than the height of the blank (2), a striker (174) that is. attached to the free end of the support (172), overhanging the base (171) and arranged parallel thereto, and a protrusion (175), attached orthogonally to said striker (174), turned downwards and oriented so as to have its internal surface (175a) coplanar with the internal surface (14) of the said rear prong (11b), during the dwell phase (A) of the feeding line (10), with said frame (170) being moved alternatively in direction orthogonal to the feeding line (10), between two extreme positions, respectively a raised position (X), set in phase relation with the dwell phase (A), and a lowered position (Y), set in phase relation the advancement phase (Z) of the feeding line (10), so as to define, correspondingly, the maximum and minimum protrusion of the said support (172) with respect to the feeding line (10);- an operative unit (80), including at least one arm (81) hinged at its lower part to a point below the said running plane (12) near the said front prong (11a), and equipped with at least one gripping means (82) turned upstream, with said unit oscillating between a first extreme position first (M), in which such arm (81) is vertical or inclined in upstream direction with respect to the advancement direction of the feeding line (10), so that the length of the part of said arm calculated from said running plane (12) to the said gripping means (82) is shorter than the longitudinal extension of the said bottom wall (2a) of the blank (2), and a second extreme position (T), in which said arm (81) is directed upstream and situated below the said running plane (12), with the said first position (M) set in synchrony with the dwell phase (A) of the feeding line (10), and designed to allow said gripping means (82) to firstly support and subsequently grip, due to the activation of the same gripping means, the bottom wall (2a) of the blank, while the lowering of the said frame (170), activated in phase relation with the passage of the operating unit (80) from the first (M) to the second extreme position (T), first causes the unfolding of the blank (2), because of the pushing and guiding action performed by the said protrusion (175) and by the above mentioned striker (174) on the upper corner (15) of the blank (2), and then the subsequent partial opening of the blank (2) until deactivation of the said gripping means (82), carried out in correspondence with a position (N) of the said operative unit (8), intermediate with respect to the said extreme positions (M,T), and subsequently the opening of the blank is completed in the said housing (60), with cooperation with the walls defining the latter.
- Device, according to claim 1, characterised in that it comprises also printing means (30) designed to print on the said flattened blanks (2), including a couple of cylinders, set opposite to each other and counter rotating, with each of the said blank (2) passing therebetween during its transport along the said suction belt (4), and with said printing means (30) designed to print at least on one face of the same flattened blank.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93BO000431A IT1264727B1 (en) | 1993-10-29 | 1993-10-29 | "DEVICE FOR PUTTING FLAT TUBULAR BLINDS BY VOLUME INTO A LINE FOR FEEDING CARTONS" |
ITBO930431 | 1993-10-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0650893A1 EP0650893A1 (en) | 1995-05-03 |
EP0650893B1 true EP0650893B1 (en) | 1996-12-18 |
Family
ID=11339288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94830510A Expired - Lifetime EP0650893B1 (en) | 1993-10-29 | 1994-10-28 | Device for erecting tubular flattened blanks in a case feeding line |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0650893B1 (en) |
DE (1) | DE69401192T2 (en) |
ES (1) | ES2095736T3 (en) |
IT (1) | IT1264727B1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9724044D0 (en) * | 1997-11-14 | 1998-01-14 | Mead Corp | Guide mechanism for a packaging machine |
DE19920495A1 (en) * | 1999-05-05 | 2000-11-09 | Bosch Gmbh Robert | Device for removing and transferring folding boxes |
DE10034140C2 (en) * | 2000-07-13 | 2003-01-02 | Uhlmann Pac Systeme Gmbh & Co | Magazine device for folding boxes in packaging machines |
DE10114044B4 (en) * | 2001-03-22 | 2005-07-14 | Robert Bosch Gmbh | Device for guiding a body to be introduced into a transport device |
ES2253952B1 (en) * | 2003-09-19 | 2007-07-16 | Ignacio Espasa Sanchez | BOX FORMER MACHINE. |
ITBO20120272A1 (en) * | 2012-05-17 | 2013-11-18 | Nuova Sima Spa | MACHINE FOR PACKING A TILE OR STACK OF TILES WITH ONE OR MORE CARTONED CARTONS |
GB2549256B8 (en) * | 2016-03-29 | 2021-02-17 | Keymac Packaging Systems Ltd | Automatic sleeving machine |
EP3446990A1 (en) * | 2017-08-15 | 2019-02-27 | Tetra Laval Holdings & Finance S.A. | An infeed device and a method for feeding a blank of a packaging material |
CN111619856B (en) * | 2020-06-12 | 2021-10-12 | 顺德职业技术学院 | Food processing packagine machine with buffering guard action |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB554905A (en) * | 1942-04-30 | 1943-07-23 | William Isler | Improved slide feed, for packing machines, packing cigarettes and like articles |
US3584434A (en) * | 1968-05-16 | 1971-06-15 | M & E Machinery Corp | Carton handling and loading method and machine |
US3783752A (en) * | 1972-05-09 | 1974-01-08 | Langen H J & Sons Ltd | Carton opening device |
US4348853A (en) * | 1980-08-08 | 1982-09-14 | Morse Hugh B | Case opening and sealing apparatus |
-
1993
- 1993-10-29 IT IT93BO000431A patent/IT1264727B1/en active IP Right Grant
-
1994
- 1994-10-28 DE DE69401192T patent/DE69401192T2/en not_active Expired - Fee Related
- 1994-10-28 ES ES94830510T patent/ES2095736T3/en not_active Expired - Lifetime
- 1994-10-28 EP EP94830510A patent/EP0650893B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69401192D1 (en) | 1997-01-30 |
ES2095736T3 (en) | 1997-02-16 |
DE69401192T2 (en) | 1997-04-10 |
ITBO930431A1 (en) | 1995-04-29 |
EP0650893A1 (en) | 1995-05-03 |
IT1264727B1 (en) | 1996-10-04 |
ITBO930431A0 (en) | 1993-10-29 |
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