DE2550351A1 - PROCESS AND EQUIPMENT FOR MANUFACTURING, INCORPORATING, CUTTING UP, PERFORATING, SCRATING O.DGL. OF CUTTINGS FROM A WEB OR A WEB SECTION MADE OF CARDBOARD, PLASTIC AND / OR SIMILAR MATERIALS - Google Patents

Description

Gebr. Hilgeland, 56 Wuppertal 21 _t Im Rehsiepen

Process and device for manufacturing, cutting, cutting, perforating, Scoring or the like of blanks from a sheet or a sheet section made of cardboard, Plastic and / or similar materials

State of the art

In the case of packaging machines operating according to the skin process, it is known to arrange a plurality of objects, each assigned to a single pack, on an overall blank and then to pack this overall blank using the skin process. In a known device, a longitudinal cutting unit and a transverse cutting unit independent of it are used to separate the individual packagings from the total blank. The longitudinal cutting unit consists of crushing knives _;

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ORIGINAL INSPECTEO

which are arranged displaceably on a shaft and which run against a hardened steel roller. The cross-cutting unit consists from a punching or viewing device that transversely performs cuts running to the direction of movement of the overall blank moved on a conveyor belt or the like. With this known device can therefore not be inclined to the direction of movement of the overall blank cutting lines or curved cutting lines can be achieved. Accordingly, this known device is also not e.g. for manufacturing suitable for transport packaging such as folding packaging. Furthermore, the number of achievable, so-called benefits Relatively low, because the brackets carrying the crushing knives require adjustment of the crushing knives for the longitudinal cuts prevent under a certain minimum mutual distance. Finally, in this known device Attachment of hanging holes to be provided on individual packaging j

iron or the like due to the special construction of this longitudinal

and cross cutting unit only possible in cross direction.

For the production of transport packaging such as folding packaging, it is known to use so-called steel strips, which steel strip knives that follow the course of the desired cut, perforation, kink or other lines exhibit. The steel strip cut is perpendicular to one Counter bearing can be moved back and forth, with a track or track down- Cuts made of cardboard, plastic and / or similar materials cyclically or successively in the area of steel strip cutting and counter bearings are moved. Steel strip cut and counter bearing are executed flat in this known device, so that relatively high pressing forces for a machining operation are necessary to achieve a perfect cut.

A device that also requires relatively high compressive forces between the steel strip cut and the counter bearing is described in DAS 1 429 015. In the case of the establishment

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according to this interpretative document, a steel strip cut just made and a & also just executed, rigid in itself Counter bearing together with a film to be processed, e.g. to be cut into individual pieces, between two one predetermined roller gap having, acting as a pressure body rollers passed. Except for the moment of insertion of steel strip, foil and counter bearing into the nip Relatively high pressing forces are necessary because the steel strip cut practically on the entire blank or the entire foil and the counter bearing is pressed once the steel strip, foil and counter bearing are in the nip are located. In addition, however, it is also disadvantageous in this device that just .at the time of insertion of steel strip, foil and counter bearing into the nip Displacements between the bansfal cut and the counter bearing or film as a result of different or fluctuating driving forces acting on the steel strip or counter bearing can. If the drive conditions between a roller and the relevant roller are not the same, they are in contact with it stepping structural element (steel strip or counter bearing), e.g. as a result of changing coefficients of friction, can cause such Shifts also arise during the further course of a machining process. Similar difficulties arise also in a further device proposed according to DAS 1 429 015, which with externally essentially similar, multi-bowl drums with internal teeth works and of which one drum has a number of equal steel strip cuts corresponding to the number of corners of the drum tears while the other drum tears a corresponding number of counter bearings. The mentioned drums run over the mentioned one Internal toothing only on gears attached to the rollers and the drum opposite. The longitudinal axis of the Drums carry both movements running parallel to the film and circular movements around the axis of the associated one Roll through. Apart from the high design effort for this device, this device is in view

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on the achievable work result not even for higher working speeds can be used that correspond to the working speeds of modern skin packaging machines, for example.

task

The present invention is based on the object automatically and at a relatively high speed with as little constructive effort as possible, blanks made of cardboard, Manufacture, cut, cut, perforate, to plastic and / or similar film-like materials scratch or the like. The achievable blanks or parts thereof should be dimensionally stable and practically any Course of the cut, perforation or the like. Lines may have. These tasks are related to that specified in claim 1 Method and the device specified in claim 3 for performing this method solved.

The method according to the invention can be carried out even more advantageously if, according to claim 2, the direction of the The contact line formed by the steel strip cut and the counter bearing in relation to the steel strip cut is selected in such a way that the steel strip knife come into punctiform engagement with the blank.

advantages

Using the method according to the invention and using the device according to the invention operating according to the method according to the invention, in an automated

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Production process such as the production of so-called skin packaging from total blanks packaged as a whole, individual packaging automatically and with high dimensional accuracy and be separated at a relatively high speed. To separate the individual packaging are because of the linear or even point-like contact between the steel strip cut and the counter bearing is only relatively small Press forces necessary.

According to a preferred embodiment of the invention Device is proposed according to claim 4 that a steel strip cut with the cutting edges lying in one plane Band steel knife is provided, the counter bearing is formed by a convexly curved plate, which is in a for Plane of the cutting edges of the steel strip knife parallel plane lying axis pivotably mounted and transverse to the axial direction and is guided displaceably parallel to this plane and on the drive means for pivoting or pushing movement of the plate attack that are so coordinated that the | Strip steel cut facing side of the plate in the area of the j through the cutting edges of the steel band knives of the band steel cut4 tes educated level none or practically none in this level! Performing relative movement to the steel strip cut. ;

In a further development of this proposal, according to claim 5, the platform is mounted on an axle body, which is arranged in the machine frame, transversely to the axial direction of the axle body and guide running parallel to the plane of the cutting edges of the steel band knives, by drive means for pushing movement driven, is guided, which plate is used as a drive means for pivoting movement with positive first coupling means is drive-connected, which is opposite to the steel strip cut fixed, corresponding to the first coupling means second coupling means are engaged or engaged

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can be brought whose line of action runs parallel to the guides mentioned and at least approximately in the plane of the Cutting edges of the steel strip knife lies.

According to claim 6, the coupling means are preferably formed by a toothed rack and a toothed ring.

For the purpose of driving the axle body for the plate, it is proposed according to claim 7 that the drive means for pushing movement by a crank connected to a rotating, stationary drive shaft in a rotationally fixed manner with one end are formed on the crank and other ends acting on the axle beam. j

In the case of ikin-packed overall cuts or similar!

Packaging with a certain height of the individual packaging a j unhindered movement of the entire blank under the steel strip-j In accordance with claim 8, appropriately means for machining operations that follow one another in a cycle are Ganges taking place, predetermined changes in the distance between the strip steel cut and the counter bearing are provided. !

Furthermore, according to claim 9, it is advantageous that in the outward ' view of different height strip steel sections means for fixed adjustment of the distance between the carrier intended for the steel strip cut and the counter bearing. Here According to claim 9, a solution is advantageous in which the carrier for the steel strip cut is on a frame supported on the spindles that are drive-connected to one another and to a drive motor and are mounted on the machine frame is guided adjustable in height.

Claim 11 proposes that means for locking the carrier for the steel strip cut at least in the machining position

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of the steel strip cut are provided. This becomes some Shifting the steel strip cut in even only a small amount Dimensions avoided at least during a machining process. Characterizes a particularly preferred solution to this problem according to claim 12, characterized in that means for locking the carrier and frame at least in the processing position of the steel strip cut are provided.

In addition, it is advantageous that, in order to always achieve the same end position of the steel strip cut for the machining position, means for aligning the carrier for the steel strip cut and frames are provided for the machining position of the steel strip cut. This proposed according to claim 13 A further development of the device according to the invention has the effect that the cutting edges of the steel strip knives of the steel strip cut always hit the same point on the counter bearing or a punched sheet located on the counter bearing or preferably slightly penetrate into the punched sheet made of suitable, flexible material.

Furthermore, according to the proposal according to claim 14, it is advantageous that drive means for moving the input and the removal means according to the displacement of the between Strip-steel cut and counter-bearing formed linear contact are provided.

A preferred solution for driving the input and removal means is characterized according to claim 15, characterized in that the drive means for shifting the input and the removal means in the cycle of successive machining operations are drivingly connected to the drive means for the thrust movement of the axle body or the plate.

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In an advantageous development of the device according to the invention are, according to the proposal according to claim 16, control means for the cycle of successive machining operations taking place control of the removal means provided in a further position, from which position the respectively removed, processed blank or parts thereof are transferred into a container or the like as a result of the action of gravity.

In principle, it is advantageous according to claim 17 that the rolling of the steel strip cut and the counter bearing against one another is controlled in this way is that the rolling direction with as many band knives of the steel strip cut as possible deviates from 90 ° Includes angle. For this purpose, the counter bearing can be guided in a longitudinally displaceable manner on a guide which is located within the machine frame is either fixed in such a way that it forms a certain acute angle to the direction of movement of the blanks and for aligning the steel strip cut or at least within certain limits with regard to the mentioned alignment with respect to the direction of movement of the blanks and the alignment of the steel strip cut is mounted in the machine frame so that it can be changed.

To avoid damaging the steel strip cut and possibly too deep To prevent penetration of the cutting edges of the steel strip knife into the mentioned punched sheet, are according to claim Expediently, means are provided for keeping a predetermined distance between the steel strip cut and the counter bearing constant during a machining process.

The counter-bearing for the steel strip cut is preferably made with a punched sheet metal opposite the cutting edges of the steel strip knife compliant material, e.g. a suitable aluminum alloy.

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In particular in the event that the guide for the counter bearing is movably mounted on the machine frame, the mentioned rack to achieve a predetermined rotational movement of the counter bearing depending on its thrust movement stationary stored on the machine frame. However, it is also conceivable, in certain applications, this rack on the carrier for to fasten the steel strip cut.

Explanation of the invention

! The method according to the invention and an embodiment example

j ner device according to the invention for carrying out this

! driving are based on the drawing with FIGS. 1 to 3 in more detail

'explained.

Show it

Fig. 1 shows a device according to the invention in the Side view,

Fig. 2 shows a detail from the device according to

Fig. 1, also in side view and

FIG. 3 shows a partial illustration of the device according to FIG. 1 in plan view.

The device according to FIGS. 1 to 3 consists essentially of | from a machine frame 20, one on the machine frame 20 ge j stored frame 21 with a carrier 22 for a steel strip schnxtjt 3 and a counter bearing 6 which is longitudinally displaceable on a guide 24 and rotatable about an axle body 25.

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Via four spindles 14 rotatably mounted in cross members 16 to 19 the frame 21 is mounted in a height-adjustable manner in the machine frame 2. Centering screws 4 are supported on the frame 21 the carrier 22 for the steel strip cut 3 from. A hydraulic piston 26, one of hydraulic pistons 26 and 26, engages on the carrier 22 Hydraulic cylinder 27 attached to the frame 21 to an existing hydraulic motor 28. Furthermore, one is on the frame 21 Centering screw associated locking devices 29 provided, each having a bolt 5 which can be actuated by means of a hydraulic motor 30 each.

The spindles 14 for adjusting the height of the frame 21 are driven by a motor (not shown) and a common drive chain 15, so that rotational movements of the identically designed Spindles take place. Guides designed as guide rails are provided on cross members 31 and 32 of the machine frame 20 24 attached. The axle body 25 is on the guides 24 via rollers 33 rotatably mounted on the axle body 25 and 34 led. Furthermore, handlebars 10 act on the axle body 25, j which via crank arms 9 with output shafts 35 of a transmission i

ί bemotors 8 are drive-connected. The gear motor 8 is just-i if expediently mounted on a cross member 36 in the area of the guides 24 in the machine frame 20.

The counter bearing 6 has the shape of a cylinder jacket around the axle body 25 running lath 37, which carries the punched sheet 7 :. The punched sheet 7 is different with regard to the application Steel strips attached to the plate 37 in an exchangeable manner.

In addition to the plate 37 curved in the shape of a cylinder jacket, gear wheels 11 are non-rotatably connected to the axle body 25 and are in drive connection each with one that runs parallel to the guides 24 and is also mounted in a stationary manner in the machine frame 20 Rack 12 stand. The pitch circle radius of the

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Gears 12 corresponds at least approximately to the distance between the center of the axle of the axle body 25 and the stamped sheet 7 or the plane formed by the cutting edges of the steel strip knife of the steel strip cut. The only hint in the drawing shown strip steel knife of the strip steel cut 3 are denoted by 38.

On fixed in the machine frame 20 guide rods 39 and 40 is the input sliding plate 2 or the removal sliding plate 13 in the direction of movement of the blanks 11 or parallel to the corresponding lateral edges of the steel strip cut 3 Can be moved lengthways in the machine frame. About drive means, not shown, either with separate motors are connected or whose movement is derived from the movement of the output shaft 35 of the geared motor 8, are Input and removal sliding plate 2 and 13 controlled in such a way that their edges facing the counter bearing 6 and plate 37 irrespective of the position of the axle body 25 or the counter bearing 7, they always reach right up to the plate 37.

The mode of operation of the device shown in FIGS is described below.

Via the correspondingly controlled input sliding plate 2, a web or a web section made of cardboard, plastic and / or similar film-like material for making, cutting, Cutting, perforating, scoring or the like. A blank made of this material under the with the aid of the hydraulic motor raised strip steel cut 3 brought. After insertion of the relevant part of the web or a web section, the steel strip cut is lowered so far that the cutting edges of the steel strip knives 38 of the steel strip cut 3 just above the surface of the web to be machined or of the web section to be machined facing the cutting edges

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are located. In this position of the steel strip section 3, the steel strip section 3 is supported via the carrier 22 and the centering screws 4 on the frame 21. Then, with the aid of the hydraulic motors 30, the steel strip 3 is in this position locked by the bolt 5 of the locking devices 29 being moved over the heads 41 of the centering screws 4 will. Subsequently, the counter bearing 6 with the axle body 25 and plate 37 with the aid of the gear motor 8 is made of one Moved in the representation of Fig. 1 right end position in a left end position. Depending on the longitudinal displacement of the Axle body 25 on the guides 24, the thrust bearing 6 with the axle body 25, plate 37 and gears 11 will rotate clockwise. As a result of this movement of the counter bearing 6 and the aforementioned dimensioning of the distance between The center of the axis of the axis body 25 and the surface of the punched sheet 7 is the relevant track section designated by 42 a sheet of cardboard, plastic or the like. In lenticular Brought into contact with the plane formed by the cutting edges of the steel strip knives of the steel strip cut 3. Accordingly the web material is not at the same time, but gradually in accordance with the movement of the counter bearing 6 The steel strip knives are brought in and processed accordingly, e.g. perforated or completely severed. With a view to that to achieve the best possible machining result, if possible only point-like contact between a steel strip knife and the counter bearing is to take place, the guides are inclined to the direction of movement of the web or the web section 42 arranged to run in the machine frame 20. In the case of, for example, to be separated from a web section 42, according to the skin process produced individual packagings with a rectangular outer boundary would then be due to the given inclination of the respective contact line between steel strip section 3 and counter bearing 6 avoids a coincidence of the contact line with the extension of a band knife 38 and the desirable point-shaped Contact made.

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The processed or cut packaging or other items of a web section 42 reach the rear the counter bearing approaching removal sliding plate 13, while the input sliding plate 2 with the in the drawing in the left End position taking place movement of the counter bearing 6 is accordingly withdrawn to the left.

After the machining process has been completed, the counter-bearing 6, the input sliding plate 2 and the removal sliding plate 13 are again controlled into their respective right end position. After reaching the right end position, the removal sliding plate 13 is controlled by a hydraulic motor 43 in such an inclined position that the single packaging located on it ^! Kungen or the like. In a below, in the drawing, not shown container or the like. Get. The removal sliding plate 13 is then moved back into the horizontal position. j

In the drawing is shown in Fig. 1 as a track section 42 a total, ι cut with a plurality of skin processes! presented individual packaging. To adapt to the! respective height of the path sections to be processed or overall blanks differently designed steel strip sections 3 are necessary. To accommodate the different heights of the steel strip ; Sections 3 to take into account, the carrier 22 for the tape ' steel cut 3 on the frame 21 and the Spinäeln 14 are adjusted in height such that the cutting edges of the Steel strip knife 38 of the steel strip cut 3 during a machining process are always in the same optimal position.

Based on the representations in the drawing it can be seen without further ado that at the moment the respective area is pressed a track section to the steel strip section 3 practical exclusively perpendicular to the through the cutting edges of the

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Steel band knife 38 formed plane acting forces on the sheet-like material.

Of course, the method according to the invention can also be carried out with differently structured devices in which also only between the steel strip cut and the counter bearing line-shaped or point-shaped contact occurs in relation to the cutting edges of the steel strip knives. In any case however, it is advisable to provide a stamped sheet 7 made of a suitable material to avoid certain irregularities when cutting steel strip 3 or its steel strip knives 38 to compensate and to achieve perfect work results.

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Claims (21)

Gebr. Hilgeland, 56 Wuppertal 21, Im Rehsiepen Patents / protection claims Method for producing, cutting, cutting, perforating, scoring or the like of blanks from a web or a web section made of cardboard, plastic and / or similar film-like materials using a steel strip cut relative and perpendicular to a counter bearing with a plurality of steel strip knives, wherein the path or the path section is brought into a predetermined processing position in relation to the steel strip cut and is held in this position during processing, characterized in that by differently curved execution of the steel strip cut and counter bearing one in the plane and in the area of the path or the Lenticular contact between the steel strip section and the counter bearing is established, which is produced as a result of a rolling movement between the steel strip section and the counter bearing in the direction transverse to the extension of the contact line and in the plane of the path or the path section continuously and at a predetermined speed ity is changed in relation to the path or the path section. - 16 609848/0560 2. The method according to claim 1, characterized in that the direction of the contact line in relation to the steel strip cut is selected such that the steel strip knives come into punctiform engagement with the blank. 3. Device for performing the method according to claims 1 and 2, characterized in that in a stationary machine frame (20) a steel strip section (3) and a counter bearing (6) for the steel strip section (3) are arranged, the mutually facing through the cutting edges of the steel strip knife (38) or surfaces formed by the bearing surface of the counter bearing (6) are curved differently in such a way that the steel strip cut (3) and counter bearing (6) can only be brought into linear contact with one another in the processing plane for the blanks to be processed and that drive and control means are provided for rolling the steel strip (3) and counter bearing (6) on top of one another in a predetermined direction and that blanks on one another in the cycle of the machining operations; the input means J conveying in the machining position and holding means holding in this position as well as the respectively machined blank or part of a blank .j receiving removal means are provided. j Device according to claim 3, characterized in that 4. a steel strip section (3) with lying in one plane The cutting edge of the steel strip knife (38) is provided, the counter bearing (6) of which is formed by a convexly curved plate (37) is formed around a plane lying parallel to the plane of the cutting edges of the steel strip knife (3) Axis is pivotably mounted and guided transversely to the axial direction and parallel to this plane and displaceable the drive means for pivoting or pushing movement of the - 17 - 609848/0 56 Attack plate, which are coordinated so that the strip steel cut (3) facing side of the Plate (37) in the area formed by the cutting edges of the steel strip knife (38) of the steel strip cut (3) Level executes no or practically no relative movement taking place in this level relative to the steel strip section (3). 5. Device according to claim 4, characterized in that the plate (37) is mounted on an axle body (25), which is arranged in the machine frame, transversely to the axial direction of the axle body (25) and parallel to the plane of the cutting edges of the steel strip knife (38 , i driven overall by drive means for linear movement) extending guide, is guided, and that the plate is drivingly connected to a drive means for pivoting movement with interlocking first j coupling means <corresponding with respect to 'the steel strip section (3) fixed with the first j coupling agents second clutch means are engaged or can be brought into engagement _; whose line of action runs parallel to the mentioned guides j and lies at least approximately in the plane of the cutting edges of the steel strip knives (38). : 6. Device according to claim 5, characterized in that the coupling means are formed by rack (12) and gear (11). 7. Device according to claim 5, characterized in that the drive means for the thrust movement of a crank arm (9) connected in a rotationally fixed manner to a rotating, stationary drive shaft with one end on the crank arm £ 9) and the other end engaging the axle body (25) Handlebars (10) are formed. - 18 - 609848/0560 - _1β - 255035 Γ 8. Device according to claim 3, characterized in that means are provided for changing the spacing between the steel strip section (3) and the counter bearing (6) in a predetermined manner, which takes place in the cycle of successive machining operations. 9. Device according to claim 3 and 8, characterized in that means for fixed setting of the distance between the carrier (22) for the steel strip cut (3) and the counter bearing (6) are provided. 10. Device according to claim 9, characterized in that the carrier (22) for the steel strip cut (3) is supported on a frame (21) which is connected to one another and to a drive motor and is mounted on the machine frame (20) spindles (14) is guided adjustable in height. 11. Device according to claim 3, characterized in that means for locking the carrier (22) for the steel strip cut (3) are provided at least in the processing position of the steel strip cut (3). > 12. Device according to claim 10 and 11, characterized that means for locking the carrier (22) and frame (21) at least in the processing position of the steel strip cut (3) are provided. 13. Device according to claim 9, characterized in that means for aligning the carrier (22) for the steel strip section (3) and frame (21) for the processing position of the steel strip section (3) are provided. 14. Device according to claim 3, characterized in that drive means for moving the input and the - 19 609 848/0560 255035ϊ Removal means according to the displacement of the linear formed between the steel strip section (3) and the counter bearing (6) Contact are provided. 15. Device according to claim 7 and 14, characterized in that the drive means for shifting the input and removal means in the cycle of successive processing operations are drive-connected to the drive means for the pushing movement of the axle body (25) or the plate (37). 16. Device according to claim 3, characterized in that Control means for processing s-j processes taking place controlling the removal means are provided in a further position, from which position [ the respectively removed, processed blank or parts -, from this, as a result of the action of gravity, are transferred into a container j or the like. I. 17. Device according to claim 3, characterized in that the rolling of the steel strip (3) and the counter bearing (6) is controlled against one another in such a way that the rolling direction; encloses an angle deviating from 90 ° with as many band knives (38) of the band steel nit-i tes (3) as possible. 18. Device according to claim 3, characterized in that means are provided for keeping a predetermined distance between the steel strip section (3) and the counter bearing (6) constant during a machining process. 19. The device according to claim 3, characterized in that the counter bearing (6) for the steel strip cut (3) with a punched sheet (7) made of flexible material relative to the cutting edges of the steel strip knife (38), for example a suitable aluminum alloy. - 20 609848/0560 20. Device according to claim 6, characterized in that the rack (12) is fixedly mounted on the machine frame (20). 21. Device according to claim 6, characterized in that the toothed rack (12) is attached to the steel strip section (3). Koblenz, November 8th, 1975 The representative f.4- 609848 / US60