DE102019107458A1 - Hose transfer - Google Patents

Abstract

The invention relates to a device (2) for transporting hose pieces (10), comprising a first and at least a second transfer element (4, 4 ') for transferring the hose pieces (10), wherein the transfer of the hose pieces (10) at least one acquisition a transfer position (6) and a subsequent transfer of a piece of tubing (10) to a transfer position (6 '), wherein the transfer elements (4, 4') within the device (2) are independently movable along a predeterminable trajectory (12), and wherein the transfer elements (4, 4 ') are arranged within the device (2) in such a way that the acceleration exerted on the hose sections (44) takes place both upon acceptance of the hose sections (10) and during a subsequent transfer of the hose sections (10 ) is minimizable.

Description

The present invention relates to a device, a system and a method for transporting pieces of hose.

In the field of production of paper sacks, a rotary feeder is used for separating hoses from a hose package, describe the sucker as a planetary planetary gear a cycloid movement. By means of such a system, it is possible to detect a tube at the reversal point of the cycloids and thus without relative movement of the nipple and hose. This allows a smooth transfer of hose pieces. Due to the kinematic conditions, however, the hose transfer must take place at the reversal point of the cycloids. Here, the stoppage of disadvantage, since the hose in question must be transferred to a running transport system and therefore undergoes significant acceleration. Due to this acceleration there is a risk of tearing the hose from the teat, which can affect not only the production of the hose in question, but also the subsequent production process.

From the EP 0 790 203 A2 It is known to provide a further suction system at the transfer position, which is controlled in such a way that it detects the hose at a standstill at the tip of the cycloid and then accelerates it in a rotating movement to the machine speed of a running transport system in order to transfer the hose to the transport system , However, a disadvantage of this system is that only a single hose can be taken over and accelerated within one machine cycle. This means that the time available to take over the hose is short and the required acceleration is still high.

In addition to a tearing off of hoses caused by the high acceleration, the high acceleration also leads to misalignment of the hose pieces, so that processes for hose alignment must be connected downstream. Such a downstream tube alignment represents a large expenditure on equipment and is therefore associated with a high expenditure of time and money.

The object of the invention is to propose a device or a system for transporting pieces of hose, which ensures a reliable and reliable operation and high product quality in a simple and cost-effective manner.

The above object is achieved by a device having the features of the independent device claim, a system having the features of the independent system claim and by a method having the features of the independent method claim. Further features and details of the invention will become apparent from the respective dependent claims, the description and the drawings. In this case, features and details that are described in connection with the device according to the invention apply, of course, also in connection with the system according to the invention and the method according to the invention, and in each case vice versa, so that with respect to the disclosure of the individual aspects of the invention always reciprocal reference is or can be ,

According to the invention, a device for transporting pieces of hose, comprising at least a first and a second transfer element for transferring the hose pieces, is provided. The transfer of the hose pieces in this case comprises at least one acquisition at a transfer position and a subsequent transfer of a piece of hose at a transfer position. The transfer elements of the representational transport device are in this case independently of each other along a predeterminable trajectory movable and arranged within the device that the force exerted on the hose pieces acceleration is minimized both in a takeover of the hose pieces, as well as in a subsequent transfer of the hose pieces.

A significant advantage of the invention here is that both the acquisition of the hose pieces, as well as the transfer of the hose pieces takes place at a very low acceleration of the hose pieces, which not only significantly reduces the likelihood of tearing pieces of hose, but also the occurrence of misalignment of the hose pieces , As a result, cumbersome processes for tube alignment can be omitted, so that a high quality standard is guaranteed even without costly alignment processes. Another advantage of the invention is that constant, variable and individually determinable distances between the individual pieces of hose can be realized. Finally, the invention also enables a form of alignment operations of the pieces of tubing to be transferred, integrated into the production cycle.

The subject device for transporting pieces of tubing is used in particular for the transfer of paper tubes, but can also be used for the transfer of plastic tubing, fabric hoses, rubber hoses and the like.

As transfer elements can in principle serve all elements that allow a recording and transport of pieces of hose. For this purpose, the transfer elements must be suitable to take over the respective pieces of hose, to hold and then return. As transfer elements, for example sliding carriage, gondolas, transfer cars or the like may be provided.

Within the scope of the invention, a minimized acceleration in both the takeover and the transfer of the hose pieces is preferably an acceleration of less than 2 m / s ² , preferably less than 0.2 m / s ² , in particular less than 0 , 02 m / s ² , which acts on the hose pieces during the transfer or transfer at the transfer or transfer point.

As part of a simple and targeted alignable arrangement of the subject device, the transfer elements may preferably be arranged within the same plane, wherein the plane are arranged within the transfer elements, preferably the cutting plane whose normal vector is in the direction of the axis of rotation about which the transfer elements during the transfer of the hose pieces are performed. By means of such an arrangement of the transfer elements to each other in particular a simple and targeted controllable positioning of the transfer elements to each other is possible. As an alternative to such an arrangement, the transfer elements can also be arranged coaxially with one another instead of on the same plane.

With regard to a simple and targeted arrangement of the transfer elements to each other, it may also be advantageous in the present case that the transfer elements along the same predeterminable trajectory are movable. In this way, in particular the required distances and orientations of the transfer elements to each other can be determined in a simple manner.

In order to provide a device which is as economical as possible and at the same time easy to integrate for the transport of hose pieces, it can further be provided according to the invention that the transfer elements are band-driven, preferably linear-motor driven. Alternatively, the subject transfer elements may also be belt-driven, in particular toothed belt driven. In the context of belt driven transfer elements also flat belt drives can be provided, which promise a particularly simple design, and high belt speeds. Likewise, alternatively or cumulatively also V-belt, V-ribbed belt or synchronous belt drives can be used.

With regard to a flexible, easily integrable and efficient type of drive, it can advantageously be provided according to the invention that the transfer elements have drive elements (actuators) for moving the transfer elements along a predeterminable trajectory. The drive elements can preferably be arranged or fastened optionally, in particular on different sides of the transfer elements. Advantageously, the energy supply for the drive elements, for example, in the context of inductively operable drive elements, derived or recovered from the movement of the transfer elements. Alternatively, energy storage, such as batteries, capacitors, mechanical springs or the like can be provided for energy transmission for the drive elements. In this case, the provision of a charging station for filling the drive units, for example by relaxing a spring or the like, would then be conceivable. With a view to efficient and flexible signal transmission, communication with the drive units may preferably be wireless or contactless via Bluetooth, WLAN, NFC or the like, or via optical methods by means of optocouplers or the like.

In order to ensure both the simplest possible takeover and the simplest possible transfer of the hose pieces, the transfer elements can advantageously have fixing means for taking over the hose pieces at a transfer position or for transferring the hose pieces to a transfer position. The fixing means may in this case be formed, for example, as gripping elements or as suction or repulsion elements or the like. In this case, in particular combinations of gripping elements and suction or repulsion elements can be provided, which ensure a particularly simple and rapid transfer or takeover of the hose pieces with a corresponding arrangement.

With regard to a particularly cost-effective and economical way of ensuring a desired product quality, it can further be provided according to the invention to also detect and adapt a positioning of the tube pieces during a transfer. In this case, the tube pieces taken over can preferably be positioned in at least two dimensions, in particular in three dimensions. Through a targeted kinematic control, for example, a position of the hose in question can be detected and deviations from a target position can be detected, so that in the remaining transport path of the hose pieces a targeted correction of the positioning of the hose pieces in question can take place. In this case, positioning elements that are independent of the width can also be provided, for example, so that a correction of a possible skew is also possible through a targeted intervention. The alignment in the transverse direction could then take place by a targeted transverse displacement of the transfer elements which are in engagement on a piece of hose. In this case, the advantage is used in particular that each piece of hose is guided by independent transfer elements and thus there is no undesired, mutual influencing of other pieces of hose.

In order to ensure a faster and more tunable adoption of the hose pieces, according to the invention may further be provided that the subject device for transporting pieces of hose more than two transfer elements, which are independently within the device along a predeterminable, in particular the same predeterminable trajectory movable. By arranging more than two transfer elements, in particular, the number of transferred hose pieces per time can be increased within a parallel arrangement, so that the individual takeovers or transfers can take place at even lower acceleration, thus further reducing the likelihood of hose breaks or incorrect positioning.

Furthermore, it is likewise conceivable within the scope of the device according to the invention that the individual transfer elements can each be moved only over sections of the predeterminable trajectory. In this case, between the various sections of the predeterminable trajectory, preferably individual intermediate transfer positions can be set up to take over and transfer the hose pieces. In such a "serial" arrangement, alternatively or cumulatively to a positioning during a transfer of the relevant hose pieces, provision may also be made for positioning to take place with the aid of positioning elements fixedly arranged at the intermediate transfer positions. In an embodiment of the transfer elements in battery-powered form can also be arranged at the transfer positions advantageously charging stations, which are provided to supply energy to the transfer elements.

Alternatively or in addition to the transfer elements arranged on the fixing means may also be provided at one or more transfer positions fixedly arranged fixing means by means of which an alignment of misplaced pieces of hose can be done. These fixing devices, which are preferably in the form of suckers or grippers, can be supplied directly with energy, for example, so that, in contrast to battery-operated mobile fixing devices, a technically less complex energy supply is provided. With regard to an energy-saving design of the mobile fixing means, it is also conceivable that the transfer elements are guided in the area of transfer or transfer to the transfer positions along curve segments at which movement is transmitted to the fixing means of the transfer elements by means of plungers or the like. so that the energy for fixing takes place directly from the movement of the transfer elements. In the context of a serial arrangement, two transfer elements can likewise be provided for accommodating one hose as well, wherein a transfer is generated by the relative movement of the two transfer elements - and thus a movement for detecting or depositing a piece of hose takes place. This can be done, for example, by approaching the two adjacent transfer elements for detecting a piece of hose and perform a kind of jamming of the hose piece before the transfer elements then leave the transfer position synchronously.

With regard to a cost-effective and simple form of transfer of the hose pieces can advantageously be provided according to the invention that the subject pre-definable trajectory is determined by a rail system. As an alternative to a rail system, the predeterminable trajectory can also be provided by a conveyor belt, a cable system or the like and serve to transfer the hose pieces.

The invention also relates to a system for transporting pieces of hose with the features of the independent system claim. Here, the system in question comprises the device for transferring hose pieces described above, a detection unit for detecting a position of the hose pieces, a processing unit for determining a deviation of an actual positioning from a desired positioning of the hose pieces, and a control unit for positioning the adopted hose pieces. The individual system components are preferably wired, in particular wirelessly connected to one another, for example via WLAN, Bluetooth, NFC or the like. Signal transmission could also be carried out by optical methods such as autocouplers or the like. The various components of the system in question are preferably in here one unit, preferably integrated in a control unit.

In the context of the invention, it can preferably be provided that the detection unit has at least one sensor for the acquisition of data, by means of which a current position position of the piece of hose can be detected.

Within the scope of a particularly simple and fail-safe variant of the system according to the invention, it can further be provided that the detection unit has at least two sensors, which are preferably arranged at different positions of the system, in particular at different positions of the device for transferring the tube pieces. In this case, the sensors are preferably designed and positioned in such a way that they can detect as accurately as possible a current positional position of the taken over hose pieces. In this case, the sensors can preferably be formed as light barriers or cameras or the like.

With regard to a particularly meaningful determination of a positional position of the taken over hose pieces, according to the invention it can also be provided that the detection unit determines the current position position on the basis of data from different sensors, the data being averaged and / or weighted by a processing unit prior to a determination of a current position and / or other statistical data evaluation methods.

With regard to a transport system that is as flexible as possible, it can further be provided according to the invention that the system has at least one feed unit for feeding separated hose pieces and / or at least one discharge unit for removing hose pieces transferred inside the device. A feed unit may in this case preferably be formed as a rotary feeder. An evacuation unit may preferably be formed as a double belt conveyor. In the context of a particularly fail-safe system, it may be provided in particular that additional control and / or alignment units for controlling and / or aligning the transported hose pieces are arranged on the feed unit and / or on the discharge unit.

The invention likewise relates to a paper sack production plant, comprising a device for transporting hose pieces described above, in particular comprising a system described above for transporting hose pieces.

Furthermore, in the present case, a method for transporting pieces of tubing, in particular for operating a device according to the invention and / or for operating a system according to the invention with the features of the independent method claim, is also protected. Here, the subject method for transporting pieces of tubing in particular comprises the steps of taking over a first piece of tubing by a first transfer element at a takeover position, an acceleration of the first piece of tubing by the first transfer element while simultaneously displacing the first piece of tubing by at least one length of tubing, taking over a second length of tubing by a second transfer element at the transfer position, an acceleration of the second hose piece by the second transfer element with simultaneous displacement of the second hose piece by at least one hose length, a transfer of the first piece of hose through the first transfer element to a transfer position, a transfer of the second piece of hose through the second transfer element at a transfer position, wherein the transfer elements within the device so independently of each other be moved along a predeterminable trajectory, that the force exerted on the hose pieces acceleration is minimal both in a takeover of the hose pieces, as well as in a subsequent transfer of the hose pieces. Thus, the inventive method brings the same advantages as they have already been described in detail with respect to the device according to the invention.

With regard to a minimal acceleration when the hose pieces are taken over or handed over, it is proposed within the scope of the invention that the acceleration exerted on the hose pieces has a size of less than 2 m / s ² , preferably a size of less than 0.2 m / s ² , in particular reduced to a size of less than 0.02 m / s ² .

With a view to the lowest possible acceleration when taking over the hose pieces, it is therefore proposed that the takeover of the hose pieces takes place at the takeover position at low speed, preferably at standstill. This is due to the fact that the tube pieces are preferably taken over by a rotary feeder, which preferably results in the shrub pieces in question at a speed of V = 0.

Contrary to a takeover of the hose pieces at a standstill, the invention proposes that the transfer of the hose pieces at the transfer position at similar, preferably at the same speed at which the discharge unit is operated. This is particularly advantageous in terms of the lowest possible acceleration of the hose pieces during the transfer, since the discharge unit, which is preferably formed as a double belt conveyor, has a certain propulsion speed to which the hose pieces in question must first be accelerated. With a low acceleration, the number of demolished or misplaced pieces of tubing is also reduced.

Thus, according to the present method, a first transfer element preferably takes the respective piece of tubing first at the tip of a cycloid at low speed, especially at a standstill, before subsequently accelerating the taken-over tubing and preferably advancing it by at least the current bag width within one cycle. In this way, the space for taking over the following piece of tubing is cleared. At the same time the required acceleration is limited in this way to the degree that is required for the benefit of the current hose width, so that there is an advantage for small piece of hose. The next piece of tubing grasped by the following transfer element is advantageously subsequently also accelerated accordingly. Due to the ratio of the courses of the speeds of the first to the second transfer element in this phase, the distance between the tube pieces in the further course. This ratio can be controlled by the kinematic specifications and thus used purposefully. On the one hand, to establish an independent of the hose width fixed distance of the hose leading edges. This has particular advantages in the subsequent processing, since the rotating tools in the further processing i.d.R. have a fixed circumference and thus need a corresponding to this extent, fixed distance of the workpieces. Furthermore, however, it is also conceivable to keep the distance of the hoses low in order to keep the web speed low in relation to the output in this way.

With regard to an efficient execution of the subject method, it may be advantageously provided that the method also comprises a collection of data for determining a positional position of the transferred hose pieces by means of a detection unit. The acquisition of data for determining a positional position of the transferred pieces of tubing can be carried out in particular by means of various sensors, which are preferably arranged according to the embodiments of the device according to the invention for transporting pieces of tubing at different positions of the subject system.

In this case, the subject method can preferably provide that a deviation from a desired position position is determined by means of a processing unit on the basis of the acquired data and / or a positioning of the acquired pieces of tubing is then carried out by means of a control unit by the control unit in dependence of the positioning determined by the processing unit sends a signal to one of the positioning units, which then performs a corresponding correction of the positioning of the acquired pieces of tubing.

Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, embodiments of the invention are described in detail. The features mentioned in the claims and in the description may each be essential to the invention individually or in any desired combination.

• 1 eine erfindungsgemäße Vorrichtung zum Transport von Schlauchstücken gemäß einem ersten Ausführungsbeispiel,
• 2 eine erfindungsgemäße Vorrichtung zum Transport von Schlauchstücken gemäß einem zweiten Ausführungsbeispiel,
• 3 ein erfindungsgemäßes System zum Transport von Schlauchstücken, umfassend eine Vorrichtung zum Transport von Schlauchstücken gemäß einem dritten Ausführungsbeispiel,
• 4 ein erfindungsgemäßes System zum Transport von Schlauchstücken, umfassend eine Vorrichtung zum Transport von Schlauchstücken gemäß einem vierten Ausführungsbeispiel,
• 5 ein erfindungsgemäßes System zum Transport von Schlauchstücken, umfassend eine Vorrichtung zum Transport von Schlauchstücken gemäß einem fünften Ausführungsbeispiel,
• 6 ein erfindungsgemäßes System zum Transport von Schlauchstücken, umfassend eine Vorrichtung zum Transport von Schlauchstücken gemäß einem ersten Ausführungsbeispiel.

In the figures show:

• 1 a device according to the invention for transporting pieces of hose according to a first embodiment,
• 2 a device according to the invention for transporting pieces of hose according to a second embodiment,
• 3 an inventive system for transporting pieces of hose, comprising a device for transporting pieces of hose according to a third embodiment,
• 4 an inventive system for transporting pieces of hose, comprising a device for transporting pieces of hose according to a fourth embodiment,
• 5 an inventive system for transporting pieces of hose, comprising a device for transporting pieces of hose according to a fifth embodiment,
• 6 an inventive system for transporting pieces of hose, comprising a device for transporting pieces of hose according to a first embodiment.

1 shows a sectional view of a device according to the invention 2 for transporting hose pieces 10 according to a first embodiment. The device 2 in this case comprises a first transfer element 4 and a second transfer element 4 ' , which in the present case are formed in the form of displacement slides and independently of each other along a predeterminable trajectory 12 are movable. The trajectory 12 along which the transfer elements 4 and 4 ' are independently movable, is present by a rail system determines on which the transfer elements 4 . 4 ' be guided. As an alternative to a rail system, the transfer elements 4 . 4 ' be moved by means of tape systems, cable systems or the like. In this case, the transfer elements could 4 . 4 ' be formed for example in the form of gondolas, trolleys or the like. About the presently formed as a rail system transport system, the transfer elements 4 . 4 ' be guided here by means of various drive forms, such as band-driven, toothed belt driven or linear motor driven.

For moving the transfer elements 4 . 4 ' along the trajectory formed here as a rail system 12 point the transfer elements 4 . 4 ' each drive elements 3 on. In the present case, these are on the rear side of the transfer elements 4 . 4 ' arranged, but can also on the front or below the transfer elements 4 . 4 ' be arranged or attached. Advantageously, the provision of energy for the drive elements 3 for example in the context of inductively operated drive elements 3 from the movement of the transfer elements 4 . 4 ' derived or obtained. Alternatively, you can use it to transfer energy for the drive elements 3 energy storage devices such as batteries, capacitors, mechanical springs or the like can also be provided.

For transferring the hose pieces 10 these are from the first transfer element 4 initially at the takeover position 6 accepted. To accommodate the hose pieces 10 point the transfer elements 4 . 4 ' here as a fixative 8th formed actuators, which can be formed in the simplest case in the form of gripping elements, suction or repulsion nozzles or the like.

After the takeover by the first transfer element 4 becomes the hose piece 10 clockwise over the rail system to the transfer position 6 ' transported, at which the transfer of the hose piece 10 takes place at a transfer device. The second transfer element 4 ' meanwhile moves after handing over a piece of tubing 10 again in the direction of the takeover position 6 to get a new piece of hose there 10 to take over.

By the present arrangement of at least two independently movable transfer elements 4 . 4 ' for the transfer of the hose pieces 10 , is it possible to use the hose 10 both in a takeover at a takeover position 6 as well as in a subsequent transfer to a transfer position 6 ' to take over or to hand over that the lowest possible acceleration on the hose pieces 10 is exercised. This reduces the likelihood of tearing the hose pieces 10 from the fixators 8th and also ensures safe positioning of the hose pieces 10 ,

2 shows a sectional view of a system according to the invention 1 for transporting hose pieces 10 comprising a device 2 for transporting hose pieces 10 according to a second embodiment. According to this second embodiment, the device comprises 2 two juxtaposed, formed in rail form trajectories 12 , along which a first and a second transfer element 4 . 4 ' be guided. According to this embodiment, first takes over a takeover of a piece of tubing 10 at a takeover position 6 , where the hose piece 10 by means of the fixing agent 8th at the transfer element 4 is fixed. The piece of tubing is then passed over the rail system 12 to a transfer position 6 ' at which a transfer to a second transfer element 4 ' This is also done on a second trajectory formed as a rail system 12 is moved clockwise. After the first transfer to the transfer position 6 ' the same piece of tubing will now move clockwise along the second trajectory to another transfer position 6 ' transferred, on which finally a transfer of the hose piece to a transfer device or the like takes place.

3 shows a sectional view of a system according to the invention 1 for transporting hose pieces 10 comprising a device 2 for transporting hose pieces 10 according to a third embodiment. According to this third embodiment, the transfer elements comprise 4 and 4 ' each still positioning 14 for positioning the acquired hose pieces 10 , The in the 1 and 2 each at the back of the transfer elements 4 . 4 ' arranged drive elements 3 are according to the third embodiment (and the following embodiments) respectively below the transfer elements 4 . 4 ' arranged and therefore not shown here visible. Furthermore, the subject system 1 according to the second embodiment, a sensor 16 , a detection unit 18 , a processing unit 20 and a control unit 22 on, communicating with each other via a communication and control line 24 are connected. By means of the present arrangement, it is possible during a transfer also a current positioning of the at the takeover position 6 taken over hose pieces 10 to detect and make corrections if necessary. For this, the sensor detects 16 for example by means of a light barrier 26 or the like data for judging a current positioning of the acquired pieces of hose 10 , The from the sensor 16 recorded data are then first to the detection unit 18 and then to the processing unit for processing 20 passed, in which on the basis of comparison data, in particular by means of a comparison of a setpoint from an actual positioning a current position position of an acquired piece of tubing 10 is determined. At one of the processing unit 20 certain deviation of the actual positioning from a target positioning will be the corresponding data to the control unit 22 passed, which then preferably wirelessly via WLAN, Bluetooth, NFC or the like a positioning command to the positioning 14 the first and second transfer element 4 . 4 ' sent. At the behest of the control unit 22 Thus, in case of deviation of an actual position from a desired position, a correct alignment of the acquired pieces of hose 10 be initiated.

4 shows a system according to the invention 1 for transporting hose pieces 10 comprising a device 2 for transporting hose pieces 10 according to a fourth embodiment. According to this fourth embodiment of the device according to the invention 2 are three transfer elements 4 . 4 ' and 4 ' within the device 2 arranged and independently along a predetermined trajectory 12 movable. Notwithstanding the embodiments according to 1 and 2 are the transfer elements 4 . 4 ' and 4 ' here in the form of a serial arrangement only on sections A, B, C of the predetermined trajectory 12 movable. The sections a, b and c, on which the individual transfer elements 4 . 4 ' and 4 ' be moved independently of each other, are here by the integration of two intermediate transfer positions 6 " educated. That of the first transfer element 4 at the takeover position 6 taken over hose piece 10 is hereby of the takeover position 6 first to the transfer to the first intermediate transfer positions 6 " transported and at this position to the second transfer element 4 ' to hand over. The second transfer element 4 ' transferred to the intermediate transfer positions 6 " taken over hose 10 until the next intermediate transfer position 6 " at which the relevant piece of tubing 10 to the third transfer element 4 ' is transferred. The third transfer element 4 ' conveys the hose piece 10 finally to the transfer position 6 ' , Also in the context of this embodiment, it is possible misalignments of the acquired pieces of hose 10 with the help of the sensor 16 , the detection unit 18 and the processing unit 20 to capture and then by means of the control unit 22 to cause a corresponding positioning correction, which finally from the at the transfer units 4 . 4 ' and 4 ' arranged positioning 14 is implemented. Furthermore, according to this embodiment of the system according to the invention 1 another beam splitter 28 ' in the system 1 integrated, which is intended to that of the sensor 16 emitted light for detection 26 to divide and so at at least two positions, a detection of the current positioning of the acquired pieces of hose 10 to ensure.

5 shows a system according to the invention 1 for transporting hose pieces 10 comprising a device 2 for transporting hose pieces 10 according to a fifth embodiment. Also according to the fifth embodiment, the subject device 2 formed in the form of a serial arrangement, so that the individual transfer elements 4 . 4 ' and 4 ' in each case only on the sections A, B and C of the predeterminable trajectory 12 are movable. In contrast to the execution according to 3 However, the individual transfer elements are not here with positioning 14 Provided. Rather, the subject device includes 2 in the present case four fixed positioning means 14 ' , by means of which it is possible, possibly misaligned taken over hose pieces 10 during the individual handovers. For detecting misalignments, this is next to a first sensor 16 yet another sensor 16 for acquiring data concerning a positional position of the acquired pieces of tubing 10 arranged. Advantageously, the individual firmly localized positioning 14 ' also still - not shown here - have docking stations, for example, an energy transfer to the transfer elements 4 . 4 ' allow. In this case, the energy can be transmitted in the form of electrical energy, in the form of magnetic energy or in the form of pneumatic energy. For example, in the case of electrically driven transfer elements 4 . 4 ' Chargers to be installed at the transfer positions, which preferably provided with rechargeable energy sources transfer elements 4 . 4 ' supply with electrical energy.

6 shows a system according to the invention 1 for transporting hose pieces 10 comprising a device 2 for transporting hose pieces 10 according to a first embodiment. Here, the present system includes 1 in addition to the device according to the invention 2 for transporting hose pieces 10 also a feeder unit 54 for the supply of isolated hose pieces 10 as well as an evacuation unit 28 for removal from within the device 2 transferred hose pieces 10 , The feeder unit 54 is presently in the form of a rotary feeder formed on a stacking shaft 50 to a pile 52 shaped individual pieces of hose 10 takes over. The rotary feeder rotates counterclockwise in the direction of rotation D. The individual suction rollers 46 The rotary feeder, on the other hand, rotate clockwise. About the suction nozzles 8th the rotary feeder become the isolated pieces of hose 10 on the stacking shaft 50 taken over and finally at the takeover position 6 at a speed of preferably v = 0 to the first transfer unit 4 to hand over. From the takeover position 6 becomes the accepted hose piece 10 over the rail system from the first transfer unit 4 to the transfer position 6 ' finally transferred to the discharge unit 28 is handed over. In contrast to the assumption of the hose piece, which preferably takes place at v = 0, the transfer unit 4 during the transfer preferably almost the same speed as the discharge unit 28 respectively. The discharge unit 28 is presently formed in the form of a double belt conveyor. The double belt conveyor here comprises an upper transport 32 and a lower transport 34 that have transport wheels 30 be guided along a predetermined transport direction. The hose pieces transferred to the double belt conveyor 10 be between the upper and lower transport 32 . 34 transported.

By using two independently along a predeterminable trajectory 12 movable transfer elements 4 . 4 ' , it is possible to be at a takeover position 6 taken over hose pieces 10 both at a takeover, as well as in a subsequent transfer at the lowest possible acceleration to convict. This not only minimizes the likelihood of tearing the tubing pieces 10 , but also the probability of incorrect positioning of the acquired pieces of hose 10 , To detect any incorrect positioning at the pickup position 6 taken over hose pieces 10 includes the system according to the invention 1 additionally a sensor 16 , a detection unit 18 , a processing unit 20 and a control unit 22 ,

LIST OF REFERENCE NUMBERS

1

System for transporting hose pieces

2

Device for transporting hose pieces

3

driving element

4

first transfer element

4 '

second transfer element

4 '

third transfer element

6

over position

6 '

Transfer position

6 "

integrated transfer position

8th

fixer

10

clever piece

12

trajectory

14

positioning

16

sensor

18

detection unit

20

processing unit

22

control unit

24

Communication and control line

26

photocell

28

discharge unit

28 '

ray Head

30

transport wheels

32

upper transport

34

lower transport

46

suction rolls

48

suction nozzles

50

stacking shaft

52

stack

54

feed

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• EP 0790203 A2 [0003]

Claims (19)

Device (2) for transporting hose pieces (10), comprising a first and at least a second transfer element (4, 4 ') for transferring the hose pieces (10), wherein the transfer of the hose pieces (10) at least one takeover at a takeover position (6 ) and a subsequent transfer of a piece of tubing (10) at a transfer position (6 '), wherein the transfer elements (4, 4') within the device (2) are independently movable along a predeterminable trajectory (12), and wherein the transfer elements (4, 4 ') are arranged within the device (2) such that the acceleration exerted on the hose pieces (10) can be minimized both when the hose pieces (10) are taken over and when the hose pieces (10) are subsequently transferred. Device (2) according to Claim 1 , characterized in that the transfer elements (4, 4) are arranged within the same plane, wherein the plane within which the transfer elements (4, 4 ') are arranged, preferably the cutting plane whose normal vector is in the direction of the axis of rotation, around which Transfer elements (4, 4 ') are guided during the transfer of the hose pieces. Device (2) according to Claim 1 or 2 , characterized in that the transfer elements (4, 4 ') are movable along the same predeterminable trajectory (12). Device (2) according to one of the preceding claims, characterized in that the transfer elements (4, 4 ') are belt-driven, preferably toothed belt-driven, in particular linear motor-driven. Device (2) according to one of the preceding claims, characterized in that the transfer elements (4, 4 ') have drive elements (3) for moving the transfer elements (4, 4') along a predeterminable trajectory. Device (2) according to one of the preceding claims, characterized in that the transfer elements (4, 4 ') at least one fixing means (8) for taking over the hose pieces (10) at a transfer position (6) and for transferring the hose pieces (10) a transfer position (6 ') have. Device (2) according to one of the preceding claims, characterized in that the transfer elements (4, 4 ') have positioning means (14) for aligning and / or positioning the hose pieces (10) taken over. Device (2) according to one of the preceding claims, characterized in that the device (2) has more than two transfer elements (4, 4 ', 4 "...) which, within the device (2), independently of one another along a predetermined, in particular the same predeterminable trajectory (12) can be moved. Device (2) according to one of the preceding claims, characterized in that the individual transfer elements (4, 4 ') in each case only on portions of the predeterminable trajectory (12) are movable, wherein between the various sections of the predeterminable trajectory (12) integrated transfer positions ( 6 ") are set up. Device (2) according to one of the preceding claims, characterized in that the predeterminable trajectory (12) is defined by a rail system. System (1) for transporting hose sections (10), comprising: - a device (2) for transferring hose sections (10) according to one of the Claims 1 to 9 , - a detection unit (18) for detecting a positional position of the hose pieces (10), - a processing unit (20) for determining a deviation of an actual positioning from a target positioning of the hose pieces, - a control unit (22) for positioning the hose pieces taken over (20). System (1) according to claim 11, characterized in that the system (1) comprises at least one feed unit (54) for supplying singulated pieces of tubing and / or at least one discharge unit (28) for discharging tubing pieces (10) transferred inside the device (2). having. Paper sack manufacturing plant, comprising a device (2) for transporting pieces of hose (10) according to one of Claims 1 to 10 , in particular comprising a system (1) according to one of Claims 11 or 12 , Method for transporting hose pieces (10), in particular for operating a device according to the Claims 1 to 10 and / or operating a system according to Claims 11 or 12 comprising the steps of: - transferring a first tube piece (10) through a first transfer element (4) to a transfer position (6), - accelerating the first tube piece (10) through the first transfer element (4) while simultaneously displacing the first tube piece (10 ) by at least one hose length, Takeover of a second tube piece (10) by a second transfer element (4 ') at the takeover position (6), - acceleration of the second tube piece (10) by the second transfer element (4') with simultaneous displacement of the second tube piece (10) by at least one Hose length, - Transfer of the first hose piece (10) by the first transfer element (4) at a transfer position (6 '), - Transfer of the second hose piece (10) by the second transfer element (4') at a transfer position (6 '), characterized characterized in that - the transfer elements (4, 4 ') within the device (2) are moved independently of one another along a predeterminable trajectory (12) so that the acceleration exerted on the tube pieces (10) takes place both upon acceptance of the tube pieces (10). , as well as in a subsequent transfer of the hose pieces (10) is minimal. Method according to Claim 14 , characterized in that the force exerted on the hose pieces (10) acceleration both at a takeover of the hose pieces (10), as well as in a subsequent transfer of the hose pieces (10) less than 2 m / s ² , preferably less than 0.2 m / s ² , in particular less than 0.02 m / s ² . Procedure according to Claim 14 or 15 , characterized in that the hose pieces (10) are picked up at the take-over position (6) at low speed, preferably at a standstill. Procedure according to one of the Claims 14 to 16 , characterized in that the transfer of the tube pieces (10) at the transfer position (6 ') takes place at a similar, preferably at the same speed with which the discharge unit (28) is operated. Method according to one of Claims 14 to 17 , characterized in that the method comprises detecting data for determining a positional position of the transferred pieces of tubing (10) by means of a detection unit (18). Method according to one of Claims 14 to 18 , characterized in that the method comprises determining a current position position by means of a processing unit (20) on the basis of the acquired data and / or positioning the taken hose pieces (10) by means of a control unit (22).

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