DE102021124380A1 - Device and method for producing filling material with a pressing device - Google Patents

Abstract

Device for producing filling material with a transport device which transports a strip of material in a predetermined transport direction and with a pressing device (8) which presses strip-shaped sections of this strip of material through dies in order to produce the filling material from this strip-shaped material, characterized in that the device (1) has a longitudinal cutting device (600) which cuts the strip-shaped material band into at least two partial strips in its longitudinal direction (L), this cutting device (600) having a first cutting element (602) rotating about a first predetermined axis of rotation, and a Counter-cutting body (604) rotating about a second predetermined axis of rotation, this counter-cutting body (604) having a groove (614) running in a circumferential direction or an edge, in which or on which a section of the cutting element (602) runs.

Description

The present invention relates to an apparatus and a method for manufacturing filling material. Such devices and methods have long been known from the prior art. Such filling material, for example in paper form, is placed in cartons, for example, in order to protect goods to be shipped or to fill empty spaces so that goods to be packed cannot be moved too much within a larger carton.

From the DE 10 2016 114 719 such a device is known. This has a feed mechanism and a large number of dies, through which the wall-like material, for example paper, is pressed in order to produce a large number of compacts.

This prior art device works satisfactorily per se. Nevertheless, there are sometimes problems which relate, for example, to the final shape of the filling material produced. In some cases, the tape or strip-like material to be fed becomes wedged. Both effects reduce the effectiveness of such a system.

A known device for producing filling materials has a pressing device which presses a strip-shaped strip of material through dies in order to produce the filling material from this strip of material.

The pressing device has a carrier in which at least one die is provided, through which the material can be pressed, and at least one pressing body, which can be moved in relation to the carrier in a direction which forms a predetermined angle other than 0° with a plane of the Has material bands, wherein preferably the carrier has a surface facing the compact and a surface facing away from the compact.

Furthermore, the pressing device has at least one sleeve body which adjoins the die and through which the filling material pressed through the die can be moved and/or the pressing device has at least one hold-down element which is suitable and intended for holding the material strip at least temporarily, in particular hold during the pressing process.

The device described here works essentially satisfactorily. However, it has been found, particularly at higher working speeds, that the cutting processes of the material strip in particular lead to working errors. The object of the present invention is therefore to make the cutting operations of these machines more precise, in particular.

Furthermore, it has been shown that maintenance work on such machines is often very complex. The invention is therefore based on the further object of simplifying such maintenance work.

According to the invention, these objects are achieved by the dissenting vote of the independent patent claims. Advantageous embodiments and developments are the subject of the dependent claims.

The present invention is also directed to a device for producing filling material, which has a transport device which transports a strip of material in a predetermined transport direction and with a pressing device which presses strip-shaped sections of this strip of material through dies in order to produce the filling material from this strip-shaped material .

According to the invention, the device has a longitudinal cutting device which cuts the strip-shaped material band into at least two partial strips in its longitudinal direction, this cutting device having a cutting element rotating about a first predetermined axis of rotation and a counter-cutting body rotating about a second predetermined axis of rotation, this counter-cutting body having a the circumferential direction running groove or a side edge in which or on which runs a portion of the cutting element.

A longitudinal cutting device is therefore proposed, which basically consists of a rotating cutting blade, as well as a counter-cutting body, in which this cutting blade engages or on the edge of which it runs in order to effect the longitudinal cut.

In particular, a cutting edge of the cutting element engages in this counter-cutting body or runs along its edge. It is possible for the cutting element to be in contact with the corresponding surface of the counter-cutting body at least temporarily and preferably permanently during operation.

The transport direction, along which the material strip is transported, particularly preferably also corresponds to a longitudinal direction of the material strip. The material strip is therefore preferably cut along its transport direction.

In a further advantageous embodiment, the pressing device has a carrier in which at least one die through which the material can be pressed is provided, and the device has at least one pressing body which can be moved in relation to this carrier in a direction which is one of zero degrees has different angles with a plane of the material strip and is preferably perpendicular to this plane. The filling material is thus produced by this pressing device.

In a preferred embodiment, the first cutting element is mounted on a rotatable carrier, wherein the cutting element is preferably movably and in particular resiliently mounted on this carrier in a longitudinal direction of this carrier or this shaft-like carrier. This spring-loaded mounting allows a certain range of movement of the cutting element in the longitudinal direction of said carrier. This carrier is preferably constructed in several parts. In another preferred embodiment, a gear which can be driven is arranged on said carrier.

The longitudinal cutting module allows the material web, which is in particular a paper web, to be separated into two or more webs by a longitudinal cut. For the cutting performance and service life of the cutting element or circular knife, it is important that this is pressed in the axial direction, preferably by a defined force in the axial direction, against the counter knife or the counter cutting body.

This can be achieved, as described in more detail below, by tensioning a compression spring between two elements of said carrier, effectively preferentially creating a spring-loaded piston. A cylinder of this piston is preferably connected in a form-fitting manner to an axle or shaft via a turned-on pin, preferably centrally and preferably via a milled surface. In this way, an axial displacement of the cylinder is achieved, thus enabling a torque of the gear configuration. The cutting element is particularly preferably made of heat-treated steel, although it is also possible to use a high-grade steel alloy 1.4305. Said carrier for carrying the cutting element is also preferably made of heat-treated steel or the stainless steel alloy 1.4305.

In a further preferred embodiment, the counter-cutting body or the counter-knife is made of heat-treated steel or the stainless steel alloy 1.4305. In a further embodiment, the counter-cutting body is made of stainless steel 1.0503.

In a preferred embodiment, the counter-cutting body is also mounted on a shaft. At least one gear wheel is also advantageously arranged on this shaft. At least two gear wheels are preferably arranged on this shaft.

In a further advantageous embodiment, a section of the counter-cutting body is also used for grinding the grinding element. A grinding wheel can also be arranged on the counter-grinding body. In a further preferred embodiment, the counter-cutting element is designed in multiple parts and, in particular, parts of this counter-cutting body can be dismantled.

The counter-cutting body preferably enables longitudinal cutting of the web of material, particularly in combination with the cutting blade. The cutting edge of the circular blade is preferably continuously and in particular also reground during operation by a surface pressure of the cylinder mechanism described above, which is decisive for a reduced service life of the circular blade or cutting element. In particular, components of the counter-cutting body are also designed with a rough surface and represent grinding surfaces.

Preferably, the shaft of the counter-cutting body is rotated in the opposite direction relative to the cutting blade via a transmission device such as a transmission axis or by a gear wheel and transmits a torque via a gear wheel to the longitudinal cutting unit. As mentioned above, heat-treatable steel is preferably used as the material for the counter-cutter body.

In a further preferred embodiment, the counter-cutting body has a larger radius than the cutting element. The radius of the counter-cutting body is preferably at least 1.2 times as large as the radius of the cutting element, preferably at least 1.3 times as large and at least 1.5 times as large.

In a further preferred embodiment, the above-mentioned carrier of the cutting element has a first base carrier element on which a cutting blade carrier is arranged at least indirectly. This cutting blade carrier can in turn be used to carry the cutting element or cutting blade.

In a further advantageous embodiment, the cutting blade carrier is arranged on the base support element by means of a cutting blade receiving device. This means that preferably arranged between the base support element and the cutting blade support or another connecting body.

Particularly preferably, this cutting blade receiving device is detachably arranged on the base support. Particularly preferably, the cutting blade carrier has a cylindrical body, which in turn preferably has an opening into which a projection of the cutting blade receiving device can be inserted. In a further preferred embodiment, the cutting element or the cutting blade is arranged on the cylindrical body so that it can be changed. This can be done by means of fasteners such as screws or nuts.

In a further preferred embodiment, as mentioned above, a resilient element is arranged between the base body element and the cutting knife or cutting element. This also serves to press the cutting element against the counter-cutting body. This resilient element is particularly preferably arranged between the base body and the receiving device which carries the cutting element.

In a further preferred embodiment, the first cutting element rotates at a different angular speed than the counter-cutting body during a working operation. In a working operation, the first cutting element particularly preferably rotates at a higher angular speed than the counter-cutting body. In this way the above-mentioned grinding effect of the cutting element is improved.

In a preferred embodiment, a rotary movement of the first cutting element is coupled to a rotary movement of the counter-cutting body. It is thus possible for a gear arrangement to be provided between the carrier of the cutting element and the carrier of the counter-cutting body. It would also be possible for the cutting element and the counter-cutting body to be driven with different drives, but these are coupled to one another on the control side. Particularly preferably, however, only one drive device is provided for driving both the cutting element and the counter-cutting body.

In a working operation, the cutting element preferably touches the counter-cutting body. In particular, a section of the cutting element that is arranged on a side surface touches at least one section of the counter-cutting body.

The present invention is further directed to an apparatus for producing dunnage. This has a transport device, which transports a material strip in a predetermined transport direction, and a pressing device, which presses strip-shaped sections of this material strip through dies in order to produce the filling material from this strip-shaped material.

According to the invention, the device has a cross-cutting device which cuts the strip-shaped material band into at least two partial strips in a transverse direction running transversely and in particular perpendicularly to its longitudinal direction, with this cross-cutting device having at least a first cutting element which can be pivoted about a first predetermined pivot axis and a counter-cutting body, this Counter-cutting body for cutting the strip-shaped material interacts with the cutting element and preferably with a stabilization device which stabilizes a movement of the cutting element in the direction of the pivot axis.

A further cutting device is therefore proposed which, however, cuts at a predetermined angle other than zero degrees to the transport direction and in particular cuts perpendicularly to the transport direction. It is possible that the cross-cutting device separates the web of paper or the web of material into surface elements and in particular squares, which preferably corresponds to twice the number of matrices. In one embodiment, for example, three matrices and a total of six openings can be provided.

In general, modules with knife guides (which preferably serve as stabilizing devices) are to be preferred, as described here. Devices of this type lead to a cleaner cutting of the material web, in particular against the direction of the grain, which significantly increases the cutting performance and service life of the transverse knife. The principle also applies to this cross-cutting device or this cross-cutting module that all the elements serving the function are preferably made of stainless steel alloys or from tempering points. This applies in particular to the actual cutting elements of the cross cutting device. Internal moving components of the cross-cutting device are also preferably made of heat-treated steel. In a preferred embodiment, a stop plate is also provided, as well as an intermediate matrix element. These can preferably also be made of a plastic in order to save weight.

In a preferred embodiment, the stabilizing device is immobile opposite the cutting element or arranged immovably opposite the counter-cutter body (or has such a guide element), which guides the movement of the cutting element. In particular, this movement can be stabilized in a direction perpendicular to the cutting direction (ie in the transport direction of the material strip).

For example, a guide element can be arranged in the counter-cutting element, which is located laterally next to the cutting element and which prevents it from pivoting approximately perpendicularly to the cutting direction. In this way, movement of the cutting element in the direction of the pivot axis is stabilized. However, it would also be possible for this guide element to be arranged on the cutting element itself, or to be firmly connected to it. Preferably, however, the cutting element slides relative to said guide element. This guide element is preferably designed in the manner of a tooth or as a projection against which the cutting element can slide.

The present invention is also directed to a device for producing filling material with a transport direction which transports a material strip in a predetermined transport device and with a pressing device which presses strip-shaped sections of this material strip through dies in order to produce the filling material from this strip-shaped material. The device has a longitudinal cutting device which cuts the strip-shaped material band into at least two partial strips in its longitudinal direction and/or the device has a transverse cutting device which cuts the strip-shaped material band into at least two partial strips in a transverse direction running transversely to its longitudinal direction.

According to the invention, the device has a guide device for guiding the material strip, the guide device having a first plate-like element, which extends in a transport direction of the material strip and in a width direction of the material strip, and a second plate-like element, which extends in the transport direction of the material strip and in a width direction of the material strip and the material strip is guided between the first plate-like element and the second plate-like element and the plate-like elements are separated from one another and/or are separable from one another.

In particular, the two plates can be separated from one another for cleaning purposes. The guide device preferably has at least a first side edge and preferably also a second side edge. These guide edges are preferably arranged on at least one of the plate-like elements. The strip of material is preferably guided between these guide edges. It is conceivable that a lateral distance between these guide edges is slightly larger than the width of the guide band. This guide device is preferably used to feed the material strip to the cross-cutting device and/or the longitudinal cutting device.

In a preferred embodiment, the guide device has a rotatably mounted roller, which is also used to guide the material strip. The guide device preferably has a guide carriage, which consists in particular of stainless steel or materials of equivalent or higher strength.

In a further advantageous embodiment, the guide device has a contact roller, which is preferably arranged below the material strip and contacts it from below. This contact roller can be pressed against the material web by means of clamping elements. In addition, a drive roller is preferably also provided, which interacts with this contact roller to transport the material strip.

In addition, the guide device also has components that are not load-bearing or statically less critical, which can also be made of aluminum alloys or the like. The contact roller or counter-pressure roller mentioned above preferably has a core and a rubber coating, these elements preferably being made of hard or viscoelastic plastics. The advantage that the plates or covers mentioned here are separate and/or divided is particularly advantageous for accessibility for the purpose of cleaning.

The present invention is also directed to a method for producing filling material, in which a strip-shaped material strip is transported by a transport device in a predetermined transport direction and a pressing device presses strip-shaped sections of this material strip through dies in order to produce the filling material from this strip-shaped material and wherein a longitudinal cutting device cuts the strip-shaped material band into at least two partial strips in its longitudinal direction and/or a cross-cutting device cuts the strip-shaped material band into at least two partial strips in a transverse direction running transversely to its longitudinal direction.

The present invention is also directed to a device for producing filling material with a transport device which transports a strip of material in a predetermined transport direction and with a pressing device which presses strip-shaped sections of this strip of material through dies in order to produce the filling material from this strip-shaped material. In addition, the device has a cross-cutting device which cuts the strip-shaped material strip into at least two partial strips in a transverse direction running transversely to its longitudinal direction, the device having a main carrier on which the transport device and the cross-cutting device are arranged.

According to the invention, the cross-cutting device is arranged in its entirety on the main carrier and can be removed from it and/or the device has a roller carrier for receiving the material strip made up as a roll, with this roller carrier being arranged rotatably on a boom attached to the main carrier.

A modular structure is thus proposed within the scope of this invention, which makes it easier to implement a new set of assemblies. The individual assemblies have already been described above and are further described below. In the second variant, it is proposed that a rolled-up web of material be placed and, in particular, clamped onto a roll holder. The material web, for example a paper web, is preferably guided by a rolling mechanism between a buffer drive and a buffer roller and preferably forms a loop which is measured by a sensor, in particular continuously. The material is fed via a feed to a cutting device, preferably a longitudinal cutting device, and is thereby divided into two webs. The cut web is then fed to a cross-cutting device and preferably formed into the final product by an interaction of a ram module and a cutting device.

The main carrier or module carrier described here preferably forms the basic structure of the device. Several and preferably all of the modules and units are preferably mounted on a front panel of this main support, as a result of which special requirements are placed on its material.

In order to prevent the deformation and corrosion, a stainless steel alloy is preferably used for the main beam, which in turn is accompanied by an increase in the overall weight. Aluminum alloy is preferred for all components that do not contribute to structural integrity to compensate for the overall weight. Elements located inside the filler machine are preferably made of a different material, in particular C45 (1.0503). In this way, the higher mechanical strength is preferred over the chemical resistance (corrosion resistance).

The device preferably also has deflection rollers, which are used to deflect the material strip. These deflection rollers are preferably made from a composite material, which particularly preferably contains polylactic acid and thermoplastic polyurethane, which is particularly preferably manufactured using an FDM process. This combination of both plastics is preferred, but different materials can be used, but this results in an increase in the overall weight. Furthermore, a side plate with integrated operating elements can be provided, but a closed profile of the main support is also possible.

In a preferred embodiment, the main carrier has a recess into which the transverse cutting device can be inserted. The transverse cutting device can preferably be connected to this recess and/or to the main support by means of screws. In this way, it is possible for the entire transverse cutting device to be removed from the main support, for example for repair purposes. Difficult repairs to the cross-cutting device can be carried out more easily in this way. In a further preferred embodiment, the pressing device is arranged detachably on the main support, preferably the pressing device is therefore also designed as a module which can be removed from the main support in its entirety.

In a further preferred embodiment, the device has a guide device in order to feed the material to the cross-cutting device, and this guide device is preferably also designed as a module that can be detached from the main carrier. The cross-cutting device or this guide device can thus also be removed in its entirety from the main support, in particular in order to carry out maintenance work. An exception is preferably also provided for attaching this guide device to the main beam.

In a further preferred embodiment, at least one intermediate plate is arranged on the main carrier, this intermediate plate extending parallel to the main carrier and the device having at least one shaft which extends both through the intermediate plate and through extends the main beam. In this way, said shaft is guided by both the main support and the intermediate plate and is thus kept stable. This intermediate plate is preferably also arranged detachably on the main support.

At least one drive device for driving the shaft is preferably arranged on the intermediate plate. This shaft can, for example, drive rollers that guide the strip of material. In addition, this shaft can also initiate the cutting movement via a gear mechanism.

Said intermediate plate is preferably arranged on the main girder by means of connecting plates or transverse plates (which extend perpendicularly to the plane of the main girder. Said intermediate plate should ensure a concentric bearing of the individual axes and/or shafts, and preferably also a plane-parallel surface to the front plate or This intermediate plate preferably consists of the material 1.4305.

As mentioned, such an intermediate plate can also serve as a motor mount. It is possible, for example, for a drive unit of a cross-cutting device and a ram group, which presses the material through the dies, to be mounted on this motor mount.

The drive device or the motor is preferably any servo step or BLDC motor design. In terms of performance, this engine is adapted to the tasks to be performed. In a preferred embodiment, a Nema 34 stepper motor is used.

With the exception of the motor plate, the units are preferably made of the material C45. The motor plate itself is preferably made of the material 1 .4305. It would also be possible to use other materials that can withstand the mechanical loads that occur here. In a further preferred embodiment, this intermediate plate is therefore used to carry at least one drive device. As mentioned, this is preferably an electric motor. In a further preferred embodiment, the device has two intermediate plates on which a number of motors can preferably also be arranged. The device preferably has a total of at least two and preferably at least three motors which operate all of the drives.

In a further preferred embodiment, the roll carrier has at least two support rails, which can be moved in a radial direction of the roll carrier relative to a base body of the roll carrier and are in particular prestressed, for carrying the roll of material strip.

This configuration of the roller carrier or the receptacle means that the web of material in the form of a roller is fastened to the housing of the machine. In this case, a receiving mandrel is preferably provided, which is attached to the main support behind the main support or on the back of the boom, and then the winding head is attached with a pre-assembled cover. A front cover can also be screwed on. No significant forces act on the arbor itself, which is why a light aluminum alloy can be provided here.

Preferably, said support plates for supporting the roll are manufactured as FTM manufactured elements and can preferably be manufactured from any plastic, especially non-flexible ones. The tension is preferably applied by at least two, preferably at least three, preferably at least four and preferably five devices which are distributed radially, in particular uniformly. These preferably have a clamping jaw, as well as a spring core and several compression springs. The spring core and the clamping jaw can also be made from different plastics, with a flexible and resistant material preferably being used for the component.

The cutting elements mentioned above for the longitudinal cutting device can have different configurations. For example, it is possible for the cutting element to have a bevel on only one side. In addition, it is possible for the cutting element to be in the form of an undercut cutting edge with a chamfer on one side. In addition, the cutting element can be designed as a relief-ground cutting edge with a stepped bevel on one side and an additional preliminary bevel. In a further preferred embodiment, the cutting element is designed as a spring-loaded cutting edge with a bevel on one side and an additional bevel. Finally, the cutting element can also have a stepped bevel on one side and a preliminary bevel.

The cutting elements or the blades for the transverse cutting device can also have different configurations. For example, they can be designed as a straight blade with a chamfer on one side, or as a straight blade with a chamfer on one side and a spring mount, or as a curved blade with a chamfer on one side and a spring mount, or as an angled blade with a chamfer on one side as well a spring retainer.

In a further embodiment, the cutting elements of the transverse cutting device are designed as a blade with a symmetrical curvature, or as a blade with a double-spiral and symmetrical curvature, or as an angled blade with a double-spiral and/or symmetrical curvature.

The angle that the pressing direction encloses with the plane of the material strip is preferably greater than 10°, preferably greater than 30°, preferably greater than 50°, preferably greater than 70° and particularly preferably greater than 80°. The pressing direction is preferably perpendicular to the plane of the material strip.

The two measures described here serve on the one hand to improve the quality of the filling material produced and on the other hand to avoid a higher throughput without the risk of jamming or similar disturbances. The tubular body, which connects to the matrix, causes the filling material to be held longer in a shape created in particular by the matrix, and thus in the final state is closer to a desired shape. Without this sleeve-like body, the material would partially recover and the resulting filling material would be further from the desired geometric shape.

The hold-down element described has the effect that the material strip can be fixed at least temporarily and in particular can be fixed in relation to said carrier.

The matrix has an element which is designed geometrically in such a way that a desired deformation of the filling material results. For example, this matrix can have four slits and a central area on which these slits are arranged. Also preferably, these slits are arranged uniformly in a circumferential direction. Furthermore, it would also be possible for the die to also extend in the pressing direction, in order in this way to improve the production of the filling material.

In a further advantageous embodiment, the sleeve body is arranged on said carrier. For example, a sleeve body can also be arranged on a machine frame on which said die carrier is also provided. In a further advantageous embodiment, the sleeve body has a cylindrical cross section and/or a circular cross section. By using such a cross section, the filling material can be kept in the desired shape in a particularly simple manner.

In a further advantageous embodiment, a mold cross section of the die is smaller than a cross section of the sleeve body, so that the cut material can pass through the sleeve body more easily.

A cross section of the sleeve-shaped body is particularly preferably at least 2%, preferably at least 5%, preferably at least 10% and particularly preferably at least 20% larger than a maximum cross section of said matrix. This maximum cross-section can be viewed, for example, from the end of a first slot of the die towards an end of another opposite slot of the die.

A cross section of the sleeve-shaped body is particularly preferably at least 2%, preferably at least 5%, preferably at least 10% and particularly preferably at least 20% smaller than a maximum cross section of said matrix. This maximum cross-section can be viewed, for example, from the end of a first slot of the die towards an end of another opposite slot of the die.

In a further advantageous embodiment, the cross section of the sleeve-shaped body is less than 70%, preferably less than 60%, preferably less than 50%, preferably less than 40% and particularly preferably less than 30% larger than the cross section of the respective matrix.

In a further advantageous embodiment, the cross section of the sleeve-shaped body is less than 70%, preferably less than 60%, preferably less than 50%, preferably less than 40% and particularly preferably less than 30% larger than the cross section of the respective matrix.

In a further preferred embodiment, the sleeve-shaped bodies have a conical internal cross-section and in particular an internal cross-section which decreases starting from the respective matrix.

The dimensioning mentioned makes it possible on the one hand to ensure that the filling material produced can still slide through the die with sufficient reliability and on the other hand that the film material is held in a desired position.

In a further advantageous embodiment, a longitudinal direction of the sleeve body extends in the direction of movement of the press body. This means that the filling material in a Direction is pressed, which also corresponds to the longitudinal direction of said sleeve body.

In a further advantageous embodiment, the sleeve body is arranged essentially concentrically with the die. For example, a geometric center of the die can also coincide with an axis of symmetry of the sleeve-shaped body. In a further advantageous embodiment, a cross section of the sleeve-shaped body is essentially constant along its longitudinal direction.

However, it would also be possible for a cross section of the sleeve-shaped body to change slightly, for example to increase slightly in the pressing direction of the pressed body. In this way, an nevertheless slight expansion of the fillers could be taken into account.

In a further advantageous embodiment, the device and in particular the pressing device has at least two, preferably at least three and particularly preferably at least four matrices. Advantageously, each of these matrices is assigned a press body that pushes the material through the die assigned to it.

In a preferred embodiment, at least one end section of the compact is adapted to the geometric shape of the matrices. It is thus possible for a section of the pressed body to penetrate through the respective die during the pressing process. Assignment of the compact to the die means that it interacts with the specific die in order to produce the filling material.

In a further advantageous embodiment, the device has at least 5 and preferably 6 such matrices on this associated press body. In a further advantageous embodiment, a movement of the individual press bodies is synchronized with one another. This means that all compacts move at the same time.

In a further advantageous embodiment, a sleeve body is assigned to each matrix. It is possible and preferred that all the matrices are designed in the same way, ie are used to produce the same filling material. However, it would also be possible for different matrices to have a different shape, so that, for example, different sizes of filling material can be produced with one device.

In a further advantageous embodiment, the sleeve body has a length that is greater than 2 cm, preferably greater than 4 cm, preferably greater than 6 cm.

In a further advantageous embodiment, the length of the sleeve body in its longitudinal direction is less than 30 cm, preferably less than 20 cm, preferably less than 15 cm.

In a further advantageous embodiment, the sleeve body has an inside diameter that is greater than 1 cm, preferably greater than 2 cm, preferably greater than 3 cm, preferably greater than 4 cm and preferably greater than 5 cm.

In a further advantageous embodiment, the sleeve body has an inner diameter which is less than 20 cm, preferably less than 18 cm, preferably less than 15 cm, preferably less than 12 cm, preferably less than 10 cm.

In a further advantageous embodiment, the sleeve body is made from a plastic material. The sleeve body is particularly preferably made of a material whose inner surface is coated, and in particular is coated in order to reduce the coefficient of friction with the filling material. In a further preferred embodiment, the sleeve bodies are made of aluminum and particularly preferably made of coated aluminum.

In a further advantageous embodiment, the sleeve body is spaced apart from the die and/or the carrier in the pressing direction. This means that a distance or a gap is preferably formed in particular between the carrier and the sleeve body in the longitudinal direction of the sleeve body. This distance is advantageously greater than 0.5 cm, preferably greater than 1 cm. This distance is particularly preferably less than 10 cm, preferably less than 8 cm, preferably less than 6 cm.

In a further preferred embodiment, sections of the die can also extend within this distance. It is thus possible for the sleeve body to be directly connected to the respective matrix. In this way, accessibility to said machine is improved.

In a further advantageous embodiment, the hold-down element is designed as a hollow body, through which a section of the press body preferably extends at least temporarily. Thus, the hold-down element can preferably also be designed as a sleeve-like body, which is arranged in particular above the die, and the surrounds the individual compacts in the circumferential direction thereof. In a preferred embodiment, the hold-down element thus bears against the material strip at least at times with an annular section and in particular bears against the material strip during the pressing process.

Preferably, the pressing direction is a vertical direction.

In a further advantageous embodiment, the hold-down element can also be moved in the pressing direction. It is thus possible for the hold-down element to be temporarily advanced onto the material strip or to lock it on the carrier, in particular during a rest phase of the material strip. For example, the movement of the hold-down element can be coupled with the movement of the press body at least temporarily. For example, the hold-down element can also be arranged on a section of the press body. In this case, it would be possible for the hold-down element to be arranged on the press body by means of a prestressing device, such as in particular a spring.

In a preferred embodiment, the hold-down element is movable to a lesser extent than the compact. It is thus possible for the hold-down element to be movable by only a few mm to a few cm.

In a preferred embodiment, the press body has a rod-like body at least in sections. In a preferred embodiment, the hold-down element is at least temporarily in contact with the material to be cut.

The hold-down element preferably serves to hold down the pieces of paper, which can have a size between 2 cm ² and 8 cm ² , for example, so that they do not shift during cutting or also after a cutting process due to shocks or vibrations. This prevents a paper jam from occurring, because in such a case the paper or the material can only be pressed imprecisely through a forming shoulder of the matrix and then the following paper on the imprecisely pressed paper, which was then not completely pressed through, comes to a standstill and a paper jam could occur. For this reason, the hold-down element or elements serve to prevent a paper jam in the system.

The present invention further relates to an arrangement for producing filling material with a first conveying device which is suitable and intended for conveying an elongate strip of material along a predetermined conveying direction and with a first cutting device which is suitable and intended for cutting the strip of material in one of of the conveying device in a direction deviating from, in particular the above-mentioned pressing direction, into strips, the arrangement furthermore having a pressing device of the type described above. In a preferred embodiment, different drives are provided at least for the pressing device and the transport device.

In a further advantageous embodiment, the arrangement has at least one, preferably a multiplicity of cutting elements arranged one behind the other along the conveyor device, which are each suitable and intended for cutting the material strip in the direction deviating from the conveyor device, which in particular also coincides with the pressing direction .

In a further advantageous embodiment, the device has a second conveying device which is arranged along the conveying direction after the first conveying device and which is also suitable and intended for transporting the elongate material along the predetermined conveying direction. In a preferred embodiment, a buffer area is arranged between the first conveying device and the second conveying device, which buffer area can accommodate different amounts of the elongate strip of material.

At least one conveying device is preferably suitable and intended for conveying the material in a clocked manner. This means that the material is at least partially and/or temporarily stationary in the conveying direction. In particular, a pressing process can be carried out in this period of time.

The device can have a control device for controlling the drives of the first conveyor device and the pressing device, which controls the drives in such a way that the strip strips are pressed through the dies while the strip strips are not conveyed in the conveying direction.

In a further advantageous embodiment, the device has a second cutting device, which cuts the material in a direction that deviates from the conveying direction by no more than 30°. This is advantageously a direction that runs essentially parallel to the conveying direction. This means that the cutting device cuts the strip of material in parallel strips, in particular in the conveying direction.

In a further advantageous embodiment, the device has a transmission device which is suitable and intended for transmitting data characteristic of the device and/or an operation of the device. This can involve, for example, faulty states of the pressing device, for example the state in which a filling material is positioned imprecisely in relation to the die and, for this reason, cannot be properly cut.

In a further advantageous embodiment, the device has a sensor device which detects the presence of material strip. This sensor device is preferably arranged above the material strip. In this way, dust can be prevented from falling onto the sensor device and interfering with its operation.

The device preferably has a further sensor device which is suitable and intended for checking the occupancy status of a material store.

In a preferred method, the pressing device has a carrier in which at least one die, through which the material is pressed, is provided, and the device has at least one pressing body, which is moved relative to the carrier in a direction which has a predetermined value of 0 ° has different angles with the plane of the material strip.

Furthermore, the pressing device has at least one sleeve body which adjoins the die and through which the filling material pressed through the die is moved and/or the pressing device has at least one hold-down element which holds the strip of material at least temporarily during the pressing process. in particular, this hold-down device fixes the material strip in relation to the carrier or in relation to an element on which the matrix is arranged.

In a preferred embodiment, the hold-down elements are made of a plastic. However, these could also be made out of aluminum.

Further advantages and embodiments result from the accompanying drawings.

• 1 eine Gesamtdarstellung einer Vorrichtung 1 nach dem Stand der Technik;
• 2 eine Darstellung eines Schneid- und Presswerkes für die in 1 gezeigte Vorrichtung;
• 3 eine weitere detailliertere Darstellung der in 2 gezeigten Vorrichtung;
• 4 eine Draufsicht entlang der Linie D-D aus 2;
• 5 eine Darstellung entlang der Linie C-C aus 3;
• 6 eine Darstellung der Schneideinrichtung;
• 7 eine Darstellung der Rückseite der Vorrichtung;
• 8 eine Darstellung einer erfindungsgemäßen Vorrichtung;
• 9 eine vergrößerte Darstellung der Presseinrichtung der in 8 gezeigten Vorrichtung;
• 10 eine Schnittdarstellung entlang der Linie A-A aus 8;
• 11 eine Draufsicht auf die in 8 gezeigten Vorrichtung;
• 12 eine perspektivische Darstellung der in 8 gezeigten Vorrichtung;
• 13a-c drei Darstellungen eines Trägers mit Hülsenkörpern;
• 14 der Träger aus 9 in einer Ansicht von unten;
• 15 zwei Darstellungen von erzeugten Füllkörpern.
• 16 eine Draufsicht auf eine erfindungsgemäße Vorrichtung;
• 17 eine weitere Ansicht einer erfindungsgemäßen Vorrichtung
• 18 eine perspektivische Hinteransicht einer erfindungsgemäßen Vorrichtung;
• 19 eine an dem Hauptträger anordenbare Trägerplatte;
• 20 eine weitere Darstellung einer Trägerplatte;
• 21 eine Darstellung einer Querschneideeinrichtung;
• 22 eine weitere Darstellung der in 21 gezeigten Querschneideeinrichtung;
• 23 eine Draufsicht auf die in 21 gezeigte Querschneideeinrichtung;
• 24 eine Draufsicht auf die in 21 gezeigte Querschneideeinrichtung;
• 25 eine Ansicht einer Führungseinrichtung zum Führen des Materialbandes;
• 25a eine Ansicht einer Führungseinrichtung in einer weiteren Ausführungsform;
• 26 eine weitere Ansicht der Führungseinheit zum Führen des Materialbandes;
• 26a die Führungseinrichtung aus 25a in einer weiteren Ansicht
• 27-29 drei Ansichten einer Stößeleinheit zum Fertigen der Füllkörper;
• 30 eine Explosionsansicht einer Welle für das erste Schneidelement;
• 30a eine Explosionsansicht einer bevorzugten Ausführungsform einer Welle
• 31 eine Darstellung einer Welle mit dem ersten Schneideelement in einem zusammengesetzten Zustand;
• 32 eine Darstellung eines Vorschubantriebs;
• 33 eine Darstellung einer Welle mit einem Gegenschneidkörper;
• 34 eine Darstellung eines weiteren Antriebs für das Materialband;
• 35 eine Darstellung einer Pufferwalze;
• 35a eine Explosionsansicht der Pufferwalze
• 36 eine weitere Darstellung des Pufferantriebs;
• 37 eine Darstellung des Rollenträgers zur Aufnahme des Materialbands;
• 38 ein einzelnes an dem Rollenträger angeordnetes Halteelement;
• 38a ein Bremselement;
• 38b eine Explosionsansicht des Halteelements;
• 39a-39e fünf Darstellungen eines ersten Schneidelements für die Längsschneideeinrichtung;
• 40a-40g sieben Darstelllungen eines Schneidelements für die Querschneideeinrichtung.

Show in it:

• 1 an overall view of a device 1 according to the prior art;
• 2 a representation of a cutting and pressing plant for the in 1 device shown;
• 3 another more detailed representation of the in 2 device shown;
• 4 shows a plan view along the line DD 2 ;
• 5 a representation along the line CC 3 ;
• 6 a representation of the cutting device;
• 7 a representation of the rear of the device;
• 8th a representation of a device according to the invention;
• 9 an enlarged view of the pressing device in 8th device shown;
• 10 a sectional view along the line AA 8th ;
• 11 a top view of the in 8th device shown;
• 12 a perspective view of the 8th device shown;
• 13a-c three representations of a carrier with sleeve bodies;
• 14 the carrier off 9 in a view from below;
• 15 two representations of generated random packings.
• 16 a plan view of a device according to the invention;
• 17 another view of a device according to the invention
• 18 a rear perspective view of a device according to the invention;
• 19 a support plate which can be arranged on the main support;
• 20 another representation of a support plate;
• 21 a representation of a cross cutting device;
• 22 another representation of the in 21 cross cutting device shown;
• 23 a top view of the in 21 cross cutting device shown;
• 24 a top view of the in 21 cross cutting device shown;
• 25 a view of a guide device for guiding the material strip;
• 25a a view of a guide device in a further embodiment;
• 26 another view of the guide unit for guiding the material strip;
• 26a the guide device 25a in another view
• 27-29 three views of a ram unit for manufacturing the packing;
• 30 an exploded view of a shaft for the first cutting element;
• 30a an exploded view of a preferred embodiment of a shaft
• 31 a representation of a shaft with the first cutting element in an assembled state;
• 32 a representation of a feed drive;
• 33 a representation of a shaft with a counter cutting body;
• 34 a representation of a further drive for the material strip;
• 35 an illustration of a buffer roller;
• 35a an exploded view of the buffer roller
• 36 another illustration of the buffer drive;
• 37 a representation of the roll carrier for receiving the material strip;
• 38 a single holding element arranged on the roll support;
• 38a a braking element;
• 38b an exploded view of the holding element;
• 39a-39e five representations of a first cutting element for the longitudinal cutting device;
• 40a-40g seven representations of a cutting element for the cross-cutting device.

1 shows a representation of a device 1 according to the invention for the production of filling material. A carrier roll 25 is provided on which a paper material 20 is stored and from which the paper material 20 is unrolled. The paper material is preferably in the form of strips. Reference number 2 designates a first transport device, which serves to transport the paper strip 20 in the X direction here. This transport device has two transport rollers 32 and 34, of which, however, only one roller is preferably driven. A corresponding drive device, such as an electric motor, is not shown. These rollers 32 and 34 can be tensioned towards one another by means of a pretensioning device (not shown) in order to be able to guide the paper material reliably. It would also be possible for these two rollers to be spaced apart from one another at times, for example in order to be able to thread in a strip of material.

The reference numeral 4 designates a second transport device, which is also suitable and intended for transporting the paper strip in the X direction, as explained below. This second transport device 4 has a driven transport roller 42 and a counter roller 44 . In this case, one of these two rollers is preferably driven by a drive (not shown). The reference number 46 designates a support surface on which the paper tape 20 rests and on which it can be displaced.

The reference number 6 designates in its entirety a cutting device which serves to cut the material strip. This cutting device has three cutting elements 62, 64 and 66 here.

The reference number 12 designates in its entirety a pressing device which is suitable and intended for pressing individual strips of material through matrices. This pressing device has a drive 24 . This drive has here a drive wheel 52 which drives a toothed rack 54 and moves here in the direction Y downwards to achieve the pressing.

2 shows a detailed representation of the in 1 shown device. The three matrices 82, 84 and 86 through which the material strips are pressed can also be seen here. In addition, a second cutting device 18 is also shown, which cuts the paper material in the transport direction X, in this case into two strips that are essentially parallel to one another. These strips are then in turn cut in the transverse direction by the cutting device 6 and then pressed through the dies. In this way, six filling bodies can be produced in one pressing process.

The reference character PB designates a buffer area of the material strip. This is located here between the first and the second conveyor. It can be seen that in this area the material is conveyed essentially in a serpentine manner. If, for example, the second conveyor device 4 is stationary and the second conveyor device 2 moves on, the buffer area PB is also filled up further. Conversely, this buffer area is emptied when the first transport in direction 2 rests and only the second transport device 4 moves.

The reference number 70 designates a carrier on which three press rods 72, 74 and 76 are arranged here. As mentioned above, these are used to push the paper material, which has already been cut lengthwise and crosswise, through the individual matrices 82, 84 and 86.

3 shows a further detailed representation of a device according to the invention. The individual cutting elements 62, 64 and 66 are also shown here, which cut the material here in a direction perpendicular to the plane of the figure. The reference numerals 68 designate guide elements or counter-cutting elements, which are used to guide the cutting elements. The reference numeral 65 denotes biasing devices with which the guide elements 68 are biased, here in the 3 to the right -that is, biased in the direction of the respective cutting element.

4 shows a view along the line DD in 2 . The three matrices 82, 84 and 86 can be seen here, each of which has cross-shaped openings (for reasons of clarity, only the openings 82a and 82b are shown). The roller 44 can also be seen, which in cooperation with the 3 roller 42 shown is used to convey the paper strip and also the counter-pressure roller 16, which is used with the cutting roller 18 for cutting the paper strip in the transport direction X. The counter-pressure roller 16 has a slot 16a into which the cutting edge of the cutting roller 18 can penetrate.

5 shows a view along the line CC 3 . Here again, a cutting element 62 is shown, as well as the guide element 68, which also serves as a counter-cutting element. In order to carry out the cutting process, the cutting element 62 is infed here in the Y direction downwards. More precisely, this is a pivoting movement of the cutting elements, which, however, also has a component in this Y direction. The matrices 82 can also be seen again. The reference numeral 24 designates a drive motor, which drives a gear wheel 52 via a gear reduction and this in turn drives the toothed rack 54. A pressing body is arranged on this toothed rack, which presses the paper strips through the matrix. In addition, the drive motor also drives the cutting element 62 via a drive linkage 56 . There is thus a mechanical coupling between the movement of the pressing bodies and the movement of the cutting elements. However, it is also conceivable that these movements can be adjusted in relation to one another, ie it can be set, for example, when the cutting process ends before the pressing process begins.

6 shows a detailed view of the cutting device 6. The individual cutting elements 62, 64 and 66 are shown again, as well as two counter-cutting bars 68 and also the pretensioning means or springs 65, which urge the respective counter-cutting bars 68 in the direction of the cutting elements 62, 64 and 66 assigned to them . The reference numeral 60 designates a carrier on which the cutting elements 62, 64 and 66 are arranged together. It can be seen that the cutting elements 62, 64 and 66 themselves do not move precisely in the Y direction, but are pivoted about an axis of rotation D. In this way, the effect is that the cut is not carried out simultaneously at all points, but instead runs from the inside to the outside in the said transverse direction Z.

7 shows a rear view of the device according to the invention. The reference number 50 relates to a control device which causes the individual drives of the device 1 to be controlled. This control device is arranged on the back of the carrier 30, ie on the opposite side with respect to the actual device. This control device preferably controls all of the drives that are responsible for the transport and the pressing process.

The reference number 100 denotes a control device for controlling the device 1. This control device can control the individual drives, such as the drives of the transport devices. Reference number 18 designates a transmission device that is suitable for the wireless output of data and/or signals. This transmission device 14 can also be in communication with the control device and receive data from it.

8th shows a device according to the invention for the production of packing. This representation is similar to that in 1 shown representation, so that with regard to the details, with the exception of the pressing device, to avoid repetition, reference is made to the above. In this case, a drive roller 42 is again provided, which is preferably embodied here with spokes. In this way, the drive roller is designed to be very light, which in particular also enables higher speeds and weight and material savings.

9 shows a representation of a pressing device 8 according to the invention as a component the in 8th shown device or in an enlarged partial view of in 8th shown device. This pressing device here has one or more carriers 82, 84, 86, which each have the matrices. A sleeve body 92 is arranged on this carrier 82 . Further sleeve bodies 94, 96 are arranged on further carriers.

In 9 Press bodies 72 or press rods 72, which can only be seen partially, press the material through the dies. In addition, cutting devices 66 are provided here, which cut the strip material in a direction which is perpendicular here to the transport direction of the strip material. This cutting of the strip material preferably takes place while the strip material is at a standstill.

Reference numeral 12 designates a hold-down element which holds the strip-like material at least during the cutting process. This hold-down element is designed here as a hollow body through which at least one section of the press body passes. Reference number 55 designates a further carrier on which the individual hold-down elements are arranged. In this case, a hold-down element is preferably assigned to each individual matrix.

The hold-down elements can be screwed into the carrier 55 with a thread. These hold-down elements preferably taper in the direction of the matrices so that the material can be pressed on more easily by these hold-down elements.

10 shows a sectional view of the device according to the invention along the line AA from 10 . Here again, the pressing bodies can be seen, which are guided inside the holding-down elements 12 designed like sleeves. In addition, the device has a main support 102 on which a support plate 104 of the device is mounted.

11 shows a plan view of the in 8th device shown. Here you can see two lever elements, which can be actuated in order to be able to manually reset the rollers connected to these levers against the force of a spring, for example to insert a paper tape into the device or to eliminate errors.

12 shows a perspective view of the device according to the invention. The multiple deflection of the strip-like material can also be seen in this representation, as well as the levers 122, 124, which can be actuated, for example to insert material.

Reference number 13 designates a sensor device which checks whether material strip is present. If there is no web of material, the machine can be stopped. Reference number 15 designates a further sensor device which checks the status of a material buffer. If no material follows, a control device can switch off the machine operation in order to prevent the material web from jamming in the machine.

The reference number 85 designates a spring device which biases two cutting elements towards one another. In this way it is achieved that these cutting elements rub against each other in a manner similar to scissors.

13a-c show three detailed representations of the pressing device. A number of sleeve bodies 92, 94, 96, which are arranged on the carrier 80, can be seen here. In 13a one can see that an internal cross-section of the sleeve-shaped body decreases from top to bottom, ie in the direction of movement of the packing.

In the perspective 13b one recognizes in particular the carrier 80, which during operation of the device also serves to prevent dust from falling into the region of the sleeve-shaped body.

At the in 13c In the plan view shown from above onto the carrier 80 one can again see the tapering of the sleeve-shaped body.

14 shows a representation of the pressing device and the sleeve bodies 92, 94, 96 from below. One recognizes in the sleeve body already manufactured filling bodies. The sleeve bodies are mounted on a carrier and preferably on a common carrier. This carrier with the sleeve-shaped bodies can preferably be removed from the device. The sleeve-shaped bodies can therefore preferably be dismantled together. This is particularly preferably possible by hand, in particular by loosening screws such as wing screws in particular.

This support, on which the sleeve-shaped bodies are mounted, also serves to keep dust from accumulating in a reservoir into which the filling bodies fall.

15 shows a comparison of a filling body 10 produced by means of the sleeve body (left partial image) and a filling body produced without a sleeve body (right partial image). It can be seen that the sleeve body shown in the figure on the right has already partially reset itself and the sleeve body shown in the left figure retains its ideal shape better.

16 shows a representation of a device 1 according to the invention. Reference number 700 refers in its entirety to the cross-cutting device. Reference number 24 again denotes the drive motor for the ram device and reference number 54 denotes a toothed rack. The reference number 600 denotes the longitudinal cutting device in its entirety, which here has the rotatable cutting element 602 and the likewise rotatable counter-cutting body 604 . The counter-cutting body 604 is arranged below the cutting element 602, which has a circumferential cutting edge.

Reference number 46 designates a transport roller and reference number 44 a counter roller. The reference number 4 again designates the conveying device in its entirety and the reference number 2 a first transport device with a transport roller 32, which here also serves as a buffer device.

The reference number 300 designates the main carrier on which the individual modules 600, 700, etc. are arranged.

The reference numeral 322 designates a boom which is also attached to the main beam 300 and which has the roller guide 320 which is rotatably mounted with respect to this boom 322 .

Reference number 13 denotes an operating element which is arranged on a control panel. During operation, a protective screen can also be arranged over the entire arrangement here in order to prevent a user from accidentally reaching into the arrangement.

The entire device is used to produce an environmentally friendly alternative filler for the packaging industry. For this purpose, the rolled-up material web (not shown) is clamped onto the roll holder 320 . The paper web is guided over the rolling mechanism between the buffer drive 32 and the buffer roller 123 and forms a loop which is continuously measured by a sensor (not shown). The material is fed to the longitudinal cutting device 600 via a feed 42, 44 and is thereby divided into two tracks. The cut web is then advantageously fed to the cross cutting device 700 and preferably formed into the final product by an interaction of the ram module 24, the motor mount and the cutting device, as described above.

17 shows a further oblique view of the device according to the invention. The two motor drives 21 and 23 can be seen here.

18 shows a rear view of the device according to the invention. The main carrier 300 forms the basic structure of the device. All modules and units are mounted on the main beam 300, which places special demands on its material.

In order to prevent deformation and corrosion, a stainless steel alloy is preferably used here, which in turn is associated with an increase in the overall weight. Are recognizable in 18 a total of three drives 21, 23 and 25, which serve on the one hand for the buffer drive, on the other hand for the feed and third (drive device 21) for the actual cutting and ram operation.

Numeral 305 designates a reinforcing brace which secures the boom to the main beam.

19 shows a further embodiment of the invention. An intermediate carrier 222 is provided here, which can be managed via connecting elements 224 on a main carrier. A drive device such as a motor 21 is in turn arranged on this intermediate carrier 222 . The drive device 21 is a stepper motor here. The intermediate carrier thus also functions as a motor plate and the elements 224 as spacer plates.

Numeral 214 denotes a flywheel connector, and numeral 216 denotes a flywheel. The reference number 218 designates a spur gear which is also arranged on the drive axle 215 and is therefore driven by the motor 21 . The motor 21 preferably performs a back and forth movement (or a reciprocating movement) which encloses an angle between 90° and 150°, preferably between 100° and 140°, preferably between 120° and 140°. In this way, the drive device 21 can drive both the knives of the transverse cutting device and the rams.

20 shows an intermediate carrier, on which in particular the two motors 23 and 25 (cf 18 ) are arranged. The reference numerals 202 and 204 designate openings through which output shafts of these motors are guided. The reference number 203 again designates an intermediate plate. The intermediate support 200 should ensure a concentric bearing of the individual axes and also form a plane-parallel surface to the main support 300 .

The 21 until 24 show four representations of the cross-cutting unit, which is the overall most complex sub-unit in the device shown here.

The cross cutter 700 separates the web of paper. Three matrices with a total of six openings are provided here for the device. Reference number 713 denotes a matrix of a first type and reference number 719 ( 22 ) a matrix of a second type.

The reference number 715 designates knife guides which are used to guide cutting elements 732 . These knife guides 715 enable clean cuts or a clean separation of the web of material against the direction of the fibers to be achieved, which also increases the cutting performance.

The reference numeral 701 designates a connecting rod adapter, which serves to convert the movement of the motor into the pivoting cutting motion with respect to the pivot axis S. The reference number 702 ( 21 ) designates a stabilizer that serves to stabilize the (cutting) pivoting movement. The reference number 704 designates a spacer and the reference number 708 the connecting rod connector.

Reference number 705 designates the rear axle, which at the same time also determines the pivot axis. The reference number 706 (cf 21 ) denotes a front axle. The reference number 707 (cf 22 ) denotes a frame element. Numeral 710 shows a slide plate in its entirety, in which a plurality of slide guides 712 are arranged. The angles 711, 716 are used for stabilization. The reference number 709 identifies the module plate in its entirety.

Reference number 717 designates a carrier, for example a matrix plate, on which a sensor device for detecting the movements (not shown) can also be arranged. A hold-down device 718 serves to hold down the strip of material during operation. Numeral 721 denotes a material plate in its entirety.

It can be seen that three cutting elements 732 are provided here, which can be moved or pivoted with respect to counter-cutting elements 734 in order to cut the material web into three transverse strips. Shortly after this cut or at the same time as this cut, the filling bodies are separated from the material webs by the matrices with the rams (not shown).

The principle that all functional elements are made of high-grade steel alloys or heat-treated steel also applies to the cross-cutting device 700. This applies to elements 709, 710, 713, 719 and 720, for example.

The individual internally movable components are preferably made at least from tempered steel. This applies advantageously to the elements 701 to 708 as well as 717 and 720. The stop plate 721 and the matrix intermediate element 714 are preferably made of plastic for reasons of weight.

In the embodiment shown here, the two mounting brackets 711 and 716 fulfill a subordinate static function and are therefore preferably made of aluminum alloys. However, the tappet guide 712 is preferably made of non-ferrous metals in order to compensate for any friction and to ensure emergency running properties.

Axial ball bearings are preferably located on both sides of each transverse blade or each cutting element 732, so that the scissor mechanism can open and close properly. As mentioned above, stabilizer devices 702 are also provided for the device shown here, which guide and/or stabilize the pivoting movement of the cutting elements 732 here.

The 25 and 26 show a guide device 400 for guiding the material strip, in particular in the direction of the longitudinal cutting device and the cross cutting device. This guide device 400, which is in particular a guide carriage, has a carriage element 401 on which the material strip is guided. Two side edges 401a,b are attached to the carriage element, between which the material strip (not shown) is guided.

This slide element is covered by a two-part cover element with a first cover element 402 and a second cover element 403 . The cover element 402 preferably has a recess through which guide rollers can contact the material strip to be transported.

Reference number 406 denotes a guide roller, reference number 407 referring to a roller core and reference number 408 to a rubber coating of this guide roller 406 . This guide roller 406 is pivoted on a hinge 404, reference numeral 405 referring to a further joint of the carriage.

This guide device serves to guide the material web into the longitudinal cutting device. The carriage device is preferably made of stainless steel or materials of equivalent or higher strength. The non-structural or statically acceptable components 402 to 406 can be made of aluminum alloys or the like.

As mentioned above, the counter-pressure roller 406 has a core 407 and a rubber coating 408, which are preferably made of a hard or tough plastic. The cover is made of two elements 402 and 403 as mentioned above. In this case, these can be removed separately from the carriage device 401, in particular as the accessibility for cleaning purposes is improved. The material strip (not shown) is thus guided between the carriage device 401 and the cover elements 402, 403.

The 25a and 26a each show preferred configurations of the guide device 400. In this embodiment, an additional guide device and in particular a centering guide device 418, 419 is provided for the counter-knife. In this way, more precise cuts can be made.

In addition, an optional actuator 409 is also provided for setting a position of the guide roller.

Reference numeral 450 designates in 27 the ram unit, which has the drive device 24 already mentioned above. Reference number 451 refers to a gear head and reference number 454 to a tappet adapter on which a total of six tappets 452 are arranged here. Numeral 453 designates an adapter for attaching the plunger adapter to the rack.

The rams 452 push the web of material, which has been divided into squares, into the forming elements of the matrix, as a result of which the end product is finally produced. The components of the gear head 451, the rack adapter 453 and the ram adapter 454 are not subject to any significant mechanical stress, which is why these components are preferably made of aluminum alloys.

The plungers 452 are preferably made of stainless or tempered steels to withstand the abrasive action of the paper material. The rotary movement of the drive device or the motor is converted into a translational movement by the gear rod, whereby the defined change in the direction of rotation of the stepping motor creates a harmonious up and down movement, which is achieved by feeding the material web through the feed unit 400 shown above enables continuous production of filler.

The 30 and 31 show a cutting element 602 which is arranged on a shaft and can rotate with this shaft. The reference number 611 refers to a drive shaft of the receiving device for the cutting element 602. The reference number 613 denotes a cylinder, which is also a component of the cutting blade seat. A washer 614 is used to attach the cutting element 602 and attachment body 646 like a screw for screwing. Numeral 602 denotes a drive gear, and numeral 644 denotes a clamp ring.

The cutting element 602 is missing here in the longitudinal direction of the drive roller. A spring can be inserted into the sleeve body 612 for this purpose. This lack of storage of the cutting element 602 offers the advantage that the cutting element can also be ground at the same time during operation.

30a Figure 12 shows another exploded view of the cutting element. In this embodiment, a circular knife 602 is provided as the cutting element. This circular knife results in an improved cutting pattern. The cutting device therefore preferably has a circular blade.

32 shows the feed unit and its drive. The feed roller 42 can be designed as a 3D printing element. The reference number 25 again identifies the drive motor and the reference number 652 the rim of the feed wheel and the reference number 654 an optionally present rubber coating of this feed wheel.

This feed unit is used to promote the material web in the longitudinal and cross cutting devices. As mentioned above, a drive via a stepping motor with standard number 24 is preferably provided.

At the same time, this motor also drives a gear ratio for the circle and counter knife, which is preferably achieved by a belt pulley or belt drive. The drive axle itself is preferably made of tempered steel or a comparable material due to the forces that occur. The rim 652 and the rubber lining 654 are preferably made of FTM convertible plastics for reasons of weight. The rim 652 can have different designs.

33 shows a representation of the counter-cutting body 604. There is a drive shaft 671 is provided, as well as a large transmission wheel 672 and a small transmission wheel 673. The coupling with the cutting knife ensures that on the one hand the cutting element 602 and object body 604 rotate in opposite directions and furthermore the two elements rotate at different speeds due to the different wheel sizes, so that a permanent grinding effect is achieved. Due to the choice of wheel sizes, the cutting element 602 rotates at a higher rotational speed than the counter cutter body 604.

Numeral 674 denotes a grinding surface against which the cutting blade 602 is ground. Numeral 679 designates the groove in which the cutting element (not shown) runs. The reference numbers denote fastening elements for assembling the counter-cutting body 604 , namely a nut 677 which is screwed onto a thread 676 .

Reference number 690 refers in its entirety to a translation element. Thus, reference number 693 designates an intermediate shaft, more precisely the transmission gear, and reference number 692 a pulley for driving this element by means of a belt or for driving another element. The reference mark 691 identifies the axis of the transmission unit 690.

35 Figure 5 shows the buffer roller unit 590 of the buffering of the device. In this case, reference number 594 refers to the actual buffer roller, which is arranged on the axis of rotation 593 . Numeral 592 denotes a connector, and numeral 591 denotes a shaft. The buffer roller 594 is preferably tensioned by a tension spring on the shaft 591, as a result of which the material web (not shown) is conveyed between the two buffer shafts in combination with the buffer drive. The pressing force that is applied by the buffer roller 594 mounted on roller bearings is determined by the spring constant of this tension spring.

35a Figure 12 shows an exploded view of another embodiment of the buffer roll unit. In this embodiment, a guide device and in particular a rigid guide device 595, 596 is provided, as well as the (particularly rubberized) roller 594. This embodiment of the buffer roller ensures precise feeding of the material web and preferably also prevents the buffer loop from being distorted.

36 shows the entire buffering drive, with the drive device 25 being shown here again, as well as the roller 654 already shown above.

This subassembly conveys the material web to the feed module, which means that no loops are formed. This loop is continuously scanned by an optoelectronic sensor (not shown) and the rate of material feed is adjusted accordingly.

A laser scanning based sensor is preferred in this application. Alternatively, however, other sensors such as proximity sensors can also be used, which determine the distance of an object, regardless of the technology they are based on.

A Nema stepping motor is preferred as the driving device 25 . In addition, however, any closed-loop capable motor is also suitable.

Here, too, the drive shaft should be made of heat-treated steel or a material that has equivalent or better mechanical properties. The drive wheel consisting of the rim and rubber coating and the panel can preferably be selected from PLA (rims), from TPU (rubber coating) and again and PLA (panel).

37 shows the roller carrier 320. The reference number 331 refers to the front cover of the roller carrier, the reference number 332 to the actual winding head, the reference number 333 to a cover and the reference number 334 to the receiving mandrel. The winding head 332 is advantageously rotatably mounted relative to this receiving mandrel.

38 shows the representation of a single clamping jaw 330, which is arranged on the roller carrier 320. The reference number 338 designates the actual clamping jaw, which has a bevel 338a over which the winding roll can be placed. This clamping jaw is arranged on a carrier plate 335 and this in turn is arranged on a spring core 336 via a large number of compression springs 337.

Furthermore, it would also be possible for brake pads to protrude inwards at the same time as the roller touches down, which brake the rotary movement of the entire roller mount. 38a shows a corresponding brake pad. Radially arranged and inwardly directed brake shoes 348, 349 are preferably provided. These ensure that the web unrolls evenly.

38b FIG. 12 shows an exploded view in which both the brake shoes 340 and the clamping shoes 330 are present.

The roll carrier therefore preferably has braking elements which brake a rotary movement of the roll carrier when a roll of material is placed on it. These braking elements can be designed as pins, for example, which protrude into the interior of the roller carrier.

The 39a until 39e 12 show different embodiments of the cutting element 602. This can have different configurations as shown in the individual figures.

The 40a - 40g show different configurations of a cutting element 732 for the cross-cutting device. while showing 40a a cutting element with a straight blade 732a with a one-sided bevel. The reference number 732d designates a bore which serves as a guide for a (pivoting) shaft.

40b shows a cutting element with a straight blade (with a one-sided bevel) and a spring retainer 732b. 40c Figure 13 shows a cutting element with a blade having a curved portion 732c and a straight portion 732a, as well as a spring retainer 732b.

40d shows an angled blade with an angled section 732e and a one-sided bevel and a spring mount. 40e shows a blade with a symmetrical, curved section 732f.

40f shows a blade with a double-spiral symmetrical curvature (sections 732f, 732g). 40g finally shows an angled blade with a double-spiral symmetrical curvature and preferably a projection 732h.

The applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided they are new compared to the prior art, either individually or in combination. It is also pointed out that the individual figures also describe features which can be advantageous in and of themselves. The person skilled in the art recognizes immediately that a specific feature described in a figure can also be advantageous without adopting further features from this figure. Furthermore, the person skilled in the art recognizes that advantages can also result from a combination of several features shown in individual figures or in different figures.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102016114719 [0002]

Claims (10)

Device for producing filling material with a transport device which transports a strip of material in a predetermined transport direction and with a pressing device (8) which presses strip-shaped sections of this strip of material through dies in order to produce the filling material from this strip-shaped material, characterized in that the device (1) has a longitudinal cutting device (600) which cuts the strip-shaped material band into at least two partial strips in its longitudinal direction (L), this cutting device (600) having a first cutting element (602) rotating about a first predetermined axis of rotation, and a Counter-cutting body (604) rotating about a second predetermined axis of rotation, this counter-cutting body (604) having a groove (679) running in a circumferential direction or a side edge, in or on which a section of the cutting element (602) runs. Device (1) after claim 1 , characterized in that the first cutting element (602) is mounted on a rotatable carrier (612, 613), the cutting element (602) being movably and in particular resiliently mounted on this carrier (612, 613) in a longitudinal direction (L) of this shaft is. Device (1) according to at least one of the preceding claims, characterized in that the carrier (606) has a first base carrier element (611) on which a cutting blade carrier (612, 613) is arranged at least indirectly. Device according to the preceding claim, characterized in that the cutting blade carrier (612) is arranged on the base support element (611) by means of a cutting blade receiving device (613). Device (1) according to at least one of the preceding claims, characterized in that during operation the first cutting element (602) rotates at a higher angular speed than the counter-cutting body (604). Device (1) according to at least one of the preceding claims, characterized in that a rotary movement of the first cutting element (602) is coupled to a rotary movement of the counter-cutting body (604). Device for producing filling material with a transport device which transports a strip of material in a predetermined transport direction and with a pressing device (8) which presses strip-shaped sections of this strip of material through dies in order to produce the filling material from this strip-shaped material, characterized in that the device (1) has a cross-cutting device (700) which cuts the strip-shaped material band into at least two partial strips in a transverse direction (Q) running transversely to its longitudinal direction, with this cross-cutting device (700) having at least a first one pivotable about a first predetermined pivot axis (S). Cutting element (732) and a counter-cutting body (734), this counter-cutting body (734) cooperating with the cutting element (732) to cut the strip-shaped material and with a stabilizing device (701, 704, 715) which a movement of the cutting element ments (732) stabilized in the direction of the pivot axis (S). Device according to the preceding claim, characterized in that the stabilizing device (701, 704, 715) has a guide element (715) which is arranged immovably relative to the cutting element (732) or immovably relative to the counter-cutting body (734) and which controls the movement of the cutting element (732) leads. Device (1) for producing filling material with a transport device which transports a strip of material in a predetermined transport direction and with a pressing device which presses strip-shaped sections of this material strip through dies in order to produce the filling material from this strip-shaped material, the device (1) has a longitudinal cutting device (600) which cuts the strip-shaped material band in its longitudinal direction (L) into at least two partial strips and/or the device (1) has a cross-cutting device (700) which cuts the strip-shaped material band in a transverse direction ( Q) cuts into at least two partial strips, characterized in that the device has a guide device (400) for guiding the material strip, the guide device (400) having a first plate-like element (401) which extends in the transport direction of the material b andes and in a width direction of the material strip and a second plate-like member (402) which extends in the conveying direction of the material strip and in a width direction of the material strip and the material strip between the first plate-like member (401) and the second plate-like member (402) out is the plate-like elements are separable from each other. Method for producing filling material, wherein a strip-shaped material band is transported by a transport device in a predetermined transport direction and a pressing device presses this strip-shaped sections of this material band through dies in order to produce the filling material from this strip-shaped material, and wherein a longitudinal cutting device (600) strip-shaped material strip cuts in its longitudinal direction (L) into at least two partial strips and/or a cross-cutting device (700) cuts the strip-shaped material strip into at least two partial strips in a transverse direction (Q) running transversely to its longitudinal direction.

Images