Pocket conveyor belt

Abstract

Pocket conveyor belt (1), with a conveyor belt body (10), preferably an elastomeric conveyor belt body (10), which is designed to receive a conveyed material (3) in the interior (19) of the closed pocket conveyor belt (1), wherein the conveyor belt body (10) has at least one sensor element (4) which is configured to detect at least the temperature of the conveyor belt body (10) at the location of the sensor element (4), characterized by the fact that the conveyor belt body (10) has at least in the area of ​​at least one sensor element (4) a textile reinforcement carrier (13a), preferably a woven textile reinforcement carrier (13a), at least in sections, and the sensor element (4) has a sensor antenna (41), preferably a transponder antenna (41), which is connected, preferably woven, at least partially with the textile reinforcement carrier (13a).

Description

[0001] The present invention relates to a pocket conveyor belt according to the preamble of patent claim 1 and to a pocket conveyor belt system with such a pocket conveyor belt according to patent claim 11.

[0002] In the field of conveyor technology, a conveyor belt type called SICON® is well known, which is described, for example, in EP 0 286 637 B1. A SICON conveyor belt has two steel cords as tension members in the longitudinal direction, i.e. in the direction of movement of the conveyor belt, which are each vulcanized lengthwise into the two lateral edge areas. The edge areas can also be referred to as conveyor belt edges, which are guided over one another when the SICON conveyor belt is closed during operation. The two edge areas have profiles around the steel cords which can essentially be guided together by corresponding rollers of a conveyor belt system so that the conveyor belt can be held hanging downwards. The function of these rollers is to guide the edge areas towards one another and press them against one another, which is why they can also be referred to as running rollers, guide rollers or tensioning rollers.Individual or all rollers can be additionally driven to move the SICON conveyor belt in the conveying direction.

[0003] In this way, a SICON conveyor belt can be folded into a pocket-like configuration for the enclosed transport of loose material, allowing the two edges to be guided one above the other. The intermediate surface of the SICON conveyor belt hangs freely downwards and carries the material within itself. A SICON conveyor belt can therefore also be referred to as a pocket conveyor belt or pocket conveyor. Appropriate guides allow the SICON conveyor belt to be opened and closed at the loading and unloading points.

[0004] A significant advantage of SICON conveyor belts is that they require minimal space, allowing them to be used in tight spaces. This also applies to overcoming height differences in tight spaces. Height differences can typically be overcome with a pocket-shaped SICON conveyor belt with gradients of up to approximately 35° by compressing the material within the pocket or bag, thereby holding it in place with a force fit.

[0005] During intensive operation of a SICON conveyor belt system under high load, a temperature increase can occur in the SICON conveyor belt, particularly in the edge areas, which are contacted and compressed by the rollers of the SICON conveyor belt system. This heating can be caused by pressure, friction, heat transfer from the bulk material, and / or radiant heat from the environment. This can be particularly the case if the rollers are not optimally adjusted and / or if they exhibit mechanical damage, which can lead to increased running resistance of the roller and thus to a local failure of the rolling load transfer (weight of the belt and the conveyed material) into the support unit.

[0006] This temperature increase is considered detrimental, as it can place stress on the conveyor belt, which can lead to increased wear and premature aging. This can also apply if a conveyor belt is subjected to operating load from a standstill in low temperatures within a short period of time.

[0007] DE 10 2014 109 284 A1 describes a conveyor system for conveying at least one item of material, comprising a continuously rotating conveyor, at least one transponder arranged on or in the conveyor, preferably an RFID transponder, and at least one communication device for wirelessly transmitting data to the transponder and / or for wirelessly reading data stored in the transponder, wherein the conveyor is a pocket conveyor belt. Preferably, the conveyor has a plurality of transponders arranged at regular intervals, wherein the data transmitted to the individual transponders or the data stored in the individual transponders are preferably data relating to a defined section of the conveyor, such as, for example, information about the type and / or quantity of the material being conveyed in a section of the conveyor associated with the respective transponder.

[0008] DE 197 13 560 A1 describes a method using transponders for inductive monitoring of a conveyor belt. The transponders are inserted at intervals along the belt, each connected to a conductor loop, and each have at least one transmitting and receiving device arranged stationary outside the belt. The transponders receive their power supply through inductive coupling of the continuously excited winding of the transmitting / receiving device(s) arranged stationary outside the belt, acting as a primary coil. During the inductive power supply, continuous signals from the transponders are transmitted inductively to the winding of one of the stationary transmitting / receiving devices ("read controller"), unless a digital pressure and / or temperature sensor integrated into the conductor loop interrupts the conductor loop when a limit pressure / temperature is exceeded or undershot.

[0009] DE 199 02 508 A1 describes that roller belts (tubular belt conveyors), similar to flat belts, are subject to the risk of destruction due to longitudinal slits when transporting sharp-edged objects. Accordingly, an arrangement for contactless electronic monitoring of a conveyor belt and for monitoring for longitudinal tears comprises at least one electrically conductive loop inserted into the conveyor belt, covering the entire belt width, to which at least one transmitting and at least one receiving device is assigned in a fixed location. The at least one conductor loop is incorporated into the belt at an oblique angle to the belt's longitudinal axis. The conveyor belt is to be used as a roller belt (tubular belt conveyor). Preferably, a transponder is integrated into the at least one conductor loop on the belt edge side. At least one fixed transmitting / receiving unit is assigned to the overlapping edge of the roller belt.

[0010] DE 44 44 263 C1 describes a method for using transponders for inductive monitoring of a conveyor belt with transmitters placed at intervals along the belt, each connected to a data carrier coil acting as an antenna, and with at least one transmitting and receiving device arranged in a fixed location outside the conveyor belt. The transmitters receive their power supply by inductively coupling the data carrier coil to a continuously excited winding acting as a primary coil of the transmitting and receiving device(s) arranged in a fixed location outside the conveyor belt. During the power supply, continuous signals from the transmitters, each with its own individual identifier, are transmitted inductively in the opposite direction to the winding of one of the stationary transmitting and receiving devices.

[0011] DE 10 2005 037 117 A1 describes a transponder and measuring device for measuring temperature or pressure in a conveyor belt. A transmitter / receiver is mounted at a distance from the conveyor belt. Electromagnetic waves are transmitted by the transmitter / receiver to and received by the transponder and the measuring device to detect abnormalities such as breaks in the conveyor belt and stop the belt for repair.

[0012] DE 195 25 326 C1 describes a method for inductively monitoring a conveyor belt with transponders made of integrated circuits and inserted at intervals into the cover layer and / or carcass and with at least one transmitting and receiving device arranged in a stationary manner outside the conveyor belt, wherein the transponders receive their voltage supply by inductive coupling to an excited winding acting as a primary coil of the transmitting and receiving device(s) arranged in a stationary manner outside the conveyor belt, wherein a data carrier coil in each case acts as a secondary coil of the voltage or power supply of the respective transponder, from which a continuous signal with an individual identifier is transmitted in the opposite direction to the winding of the stationary transmitting and receiving devices during the voltage supply, which signal is processed by an electronic evaluation unit.The transponders are arranged with the data carrier coil in the conveyor belt in such a way that they are destroyed or fall out when a certain amount of wear occurs, and that the signal failure occurring in the event of their destruction or removal due to wear of the conveyor belt cover plate or carcass is registered by the evaluation unit and evaluated for control purposes of the conveyor system.

[0013] An object of the present invention is to provide a pocket conveyor belt or a pocket conveyor belt system of the type described above, so that a temperature increase of the pocket conveyor belt can be avoided or at least reduced. At the very least, an alternative pocket conveyor belt or an alternative pocket conveyor belt system is to be provided.

[0014] The object is achieved according to the invention by a pocket conveyor belt having the features according to claim 1 and by a pocket conveyor belt system having the features according to claim 11. Advantageous further developments are described in the subclaims.

[0015] The present invention thus relates to a pocket conveyor belt with a conveyor belt body, preferably with an elastomeric conveyor belt body, which is designed to accommodate a conveyed material in the interior of the closed pocket conveyor belt. Such a conveyed material can preferably be a bulk material.

[0016] The conveyor belt body has at least one sensor element designed to detect at least the temperature of the conveyor belt body at the location of the sensor element. The sensor element is described in more detail below.

[0017] The sensor element is preferably located in or on the conveyor belt body where particularly high temperatures can occur, e.g., due to compressive loads on the material of the pocket conveyor belt. This allows the maximum temperature of the pocket conveyor belt to be detected. The temperature can be recorded as a continuous value or at discrete points in time. A current temperature value or a temperature profile can also be viewed.

[0018] According to the invention, knowledge of the temperature can be used to operate a pocket conveyor belt system in which the pocket conveyor belt according to the invention can be used, depending on the detected temperature of the pocket conveyor belt, in such a way that an increase in the temperature of the pocket conveyor belt can be avoided or at least reduced. This will be explained in more detail below.

[0019] According to one aspect of the present invention, the conveyor belt body has a first conveyor belt edge and a second conveyor belt edge, with at least one sensor element arranged in the first conveyor belt edge and / or in the second conveyor belt edge. This allows the temperature to be detected via the sensor element(s) as close as possible to the location where the greatest pressure loads can act on the pocket conveyor belt during operation and thus where the greatest pressure-related temperature increase is expected.

[0020] According to a further aspect of the present invention, the conveyor belt body comprises or consists of an elastomer material into which a strength member and / or a tensile member is embedded, at least in sections in the region of the first conveyor belt edge and / or the second conveyor belt edge, wherein at least one sensor element is arranged between the strength member and / or between the tensile member and an outer side of the conveyor belt edge, which is designed to face a roller of a pocket conveyor belt system. This arrangement allows the temperature to be detected via the sensor element wherever possible, where the greatest compressive loads can act on the pocket conveyor belt during operation and thus where the greatest pressure-related temperature increase is to be expected. This can be the case precisely in this region of the conveyor belt edge because this area can be subjected to pressure in the transverse direction by the roller during operation.This can be achieved by applying a roller to the side of the upper conveyor belt edge without a profile. Alternatively, the inclined side of the lower conveyor belt edge can rest on a roller, allowing pressure to be exerted by the weight.

[0021] A fabric can preferably be used as the strength member of a conveyor belt edge so that forces can be transmitted over the surface via the fabric, so that pressure loads on the elastomer material can be distributed more evenly over the surface and thus reduced, which can increase the service life of the conveyor belt edge.

[0022] Steel cables can be used as tension members, which extend in the running direction and absorb the tensile forces of the pocket conveyor belt.

[0023] According to a further aspect of the present invention, the first conveyor belt edge and / or the second conveyor belt edge has a profile which is designed to be guided between the rollers of a pocket conveyor belt system, wherein at least one sensor element is arranged in the first conveyor belt edge and / or in the second conveyor belt edge at the height of the profile. This arrangement allows the temperature to be measured via the sensor element wherever possible at the point where the greatest compressive loads can act on the pocket conveyor belt during operation and thus the greatest pressure-related temperature increase is to be expected. This is due to the fact that the profiles are pressed by the rollers of the pocket conveyor belt system during operation and thus higher temperatures can occur in the area of ​​the profiles than in the rest of the pocket conveyor belt (flexion work).

[0024] This is especially true if a tension member of a conveyor belt edge of the pocket conveyor belt, such as a steel cable for transmitting tensile forces in the direction of movement of the pocket conveyor belt, is positioned vertically centrally within the profile, so that the sensor element can be arranged transversely between the tension member and a roller of the pocket conveyor belt system. Since the material of the conveyor belt edge can be subjected to comparatively strong compression between the tension member and the roller, the greatest temperature development can occur here and be detected by the sensor element.

[0025] According to a further aspect of the present invention, the conveyor belt body has a plurality of sensor elements that are spaced apart from one another, preferably evenly, in the direction of movement of the pocket conveyor belt. This allows the temperature of the pocket conveyor belt to be detected by sensors at multiple locations. This can enable statements to be made about the temperatures at these locations on the pocket conveyor belt. Furthermore, a pocket conveyor belt system can be adjusted more quickly to the temperature of the pocket conveyor belt because the temperature can be detected more frequently, for example, by detecting sensor elements of the passing pocket conveyor belt at the same location on the pocket conveyor belt system at shorter time intervals.

[0026] According to one aspect of the present invention, the sensor element has a transponder chip, preferably an RFID transponder chip, or is designed as such, wherein the transponder chip is designed to receive data wirelessly from a transmitting unit of a pocket conveyor belt system and / or to send data wirelessly to a receiving unit of a pocket conveyor belt system. In this way, wireless data transmission can take place in one direction or preferably in both directions in order to receive the temperature of the sensor element as data wirelessly from the sensor element, so that disruptive cabling between the pocket conveyor belt system and the movable pocket conveyor belt can be dispensed with. By transmitting data to the sensor element, the latter can be controlled with commands and, for example, requested to send the temperature data.

[0027] According to a further aspect of the present invention, the sensor element is designed to receive electrical energy wirelessly from an energy transmission unit of a pocket conveyor belt system, and / or the sensor element has a preferably rechargeable electrical energy storage device and / or the sensor element is designed to generate electrical energy, preferably piezoelectrically.

[0028] In each of these ways, which can be used individually or in combination with each other, the energy supply to the sensor element can be achieved so that the sensor element can perform its function.

[0029] According to the invention, the conveyor belt body has, at least in the region of at least one sensor element, at least in sections, a textile reinforcement, preferably a woven textile reinforcement, and the sensor element has a sensor antenna, preferably a transponder antenna, which is at least in sections connected, preferably woven, to the textile reinforcement. This allows the sensor antenna to be positioned in a defined manner. This positioning of the sensor antenna can also be maintained during production and operation, and especially when compressive loads and / or elastic deformations of the material of the conveyor belt body occur. This also applies to the orientation of the sensor antenna, which can influence the signal reception or signal transmission of the sensor antenna.

[0030] According to a further aspect of the present invention, the sensor element is further configured to detect the pressure of the conveyor belt body at the location of the sensor element. This allows this information to be detected and used to operate a pocket conveyor belt system in which a pocket conveyor belt according to the invention is used. This also allows for the detection of an incorrectly set pressure of a roller, or the sensor-detected pressure to be used to regulate the pressure of a roller instead of controlling it.

[0031] According to a further aspect of the present invention, the sensor element further comprises an identification code, which can be detected wirelessly by a conveyor belt system, preferably wirelessly by a receiving unit of a conveyor belt system. This allows the detected temperature to be assigned to a specific sensor element that can be uniquely identified by its identification code. If the position of this sensor element along the length of the pocket conveyor belt is known, the detected temperature can also be uniquely assigned to a specific position on the pocket conveyor belt.

[0032] According to a further aspect of the present invention, the conveyor belt body comprises a plurality of sensor elements that are spaced apart from one another, preferably evenly, in the direction of movement of the pocket conveyor belt. Each sensor element has an individual identification code that can be wirelessly detected by a pocket conveyor belt system, preferably wirelessly by a receiving unit of a pocket conveyor belt system. This allows the temperatures of the conveyor belt body to be detected by sensors at several locations along the pocket conveyor belt and uniquely assigned to each of these locations.

[0033] The present invention also relates to a pocket conveyor belt system with a plurality of rollers for guiding a pocket conveyor belt as described above, with at least one transmitting unit configured to wirelessly transmit data to at least one sensor element of the pocket conveyor belt, and / or with at least one receiving unit configured to wirelessly receive data from at least one sensor element of the pocket conveyor belt, wherein the pocket conveyor belt system preferably has a combined transmitting / receiving unit. In this way, the previously described properties and advantages can be utilized in a pocket conveyor belt system.

[0034] According to one aspect of the present invention, the pocket conveyor belt system further comprises at least one energy transmission unit configured to wirelessly transmit electrical energy to at least one sensor element of the pocket conveyor belt. This allows the previously described aspect to be utilized in a pocket conveyor belt system.

[0035] According to a further aspect of the present invention, the pocket conveyor belt system further comprises a plurality of transmitting units, receiving units, transmitting / receiving units, and / or energy transmission units, which are arranged spaced apart from one another in the conveying direction. This allows the previously described aspect to be utilized in a pocket conveyor belt system.

[0036] According to a further aspect of the present invention, at least one roller, preferably a plurality of rollers, has a roller tensioning unit which is designed to move at least one roller in a direction of movement of the roller tensioning unit relative to the pocket conveyor belt and as a result to press on the pocket conveyor belt, wherein the pocket conveyor belt system is designed to control and / or regulate the pressure of the roller tensioning unit on the pocket conveyor belt as a function of a temperature and / or as a function of a pressure and / or as a function of an identification coding of a sensor element or a plurality of sensor elements of the pocket conveyor belt. In this way, these parameters can be used individually or in combination with one another or together with further information to control and / or regulate the pressure which is exerted by at least one roller on the pocket conveyor belt orwhose conveyor belt edges are subjected to pressure during operation. If several rollers of the pocket conveyor belt system are controlled and / or regulated in this way, these rollers can be operated in the same or different ways.

[0037] According to the invention, individual previously described aspects of a pocket conveyor belt and a pocket conveyor belt system can be used to operate the pocket conveyor belt or the pocket conveyor belt system in such a way that a temperature increase of the pocket conveyor belt can be avoided or at least reduced. This can be achieved, for example, by a temperature- and, if necessary, additionally pressure-dependent adjustment of operating parameters of the pocket conveyor belt system, such as the distance of the rollers from the conveyor belt edges or the pressure of the rollers on the conveyor belt edges. The drive speed of the pocket conveyor belt, for example, can also be adjusted accordingly as an alternative or additional operating parameter.

[0038] This allows the maximum temperature to be limited and critical temperatures to be avoided. It also allows a "cold" pocket conveyor belt to be gently started up to a desired operating temperature, allowing for slower warm-up than previously possible. In both cases, this protects the material of the pocket conveyor belt, and especially the conveyor belt edges, thus reducing wear and / or aging. It can also prevent failures.

[0039] An embodiment and further advantages of the invention are explained below in conjunction with the following figures. Therein: Fig. 1 a perspective schematic sectional view of a known pocket conveyor belt system with a known pocket conveyor belt; Fig. 2 a schematic plan view of a sensor element according to the invention with a strength member of a pocket conveyor belt according to the invention; Fig. 3 a perspective schematic sectional view of a pocket conveyor belt system according to the invention with the pocket conveyor belt according to the invention; and Fig. 4 a further perspective schematic sectional view of the pocket conveyor belt system according to the invention with the pocket conveyor belt according to the invention.

[0040] The description of the above figures is given in Cartesian coordinates with a longitudinal direction X, a transverse direction Y perpendicular to the longitudinal direction X and a vertical direction Z perpendicular to both the longitudinal direction X and the transverse direction Y. The longitudinal direction X can also be referred to as depth X, the transverse direction Y as width Y and the vertical direction Z as height Z.

[0041] In the Fig. 1, a known pocket conveyor belt 1 in a known pocket conveyor belt system 2 is considered. The pocket conveyor belt 1 has a conveyor belt body 10, which can also be referred to as a pocket 10 or bag 10 and is made of an elastomer material. In the transverse direction Y, on the outside, the conveyor belt body 10 has a first conveyor belt edge 11 and a second conveyor belt edge 12, which are arranged one above the other when the pocket conveyor belt 1 is closed, so that the first conveyor belt edge 11 can be referred to as the upper conveyor belt edge 11 and the second conveyor belt edge 12 can be referred to as the lower conveyor belt edge 12. Both conveyor belt edges 11, 12 have a profile 13, which serves to hold the pocket conveyor belt system 2 by means of correspondingly arranged rollers 20. A steel cable 14 runs within each of the two conveyor belt edges 11, 12 as a tension member 14 in the longitudinal direction X.

[0042] The two conveyor belt edges 11, 12 each merge downwards into a contact area 15, 16, which can also be referred to as a flag 15, 16. A pocket body 17 is connected laterally to each of the contact areas 15, 16, the upper side of which, as the carrying side 18, can accommodate a conveyed material 3, such as bulk material 3. In the closed state, the carrying side 18 of the pocket body 17 encloses the conveyed material 3 in the transverse direction Y and in the height Z, so that the carrying side 18 can then also be referred to as the inner side 18, which encloses an interior space 19 of the pocket conveyor belt 1.

[0043] The corresponding pocket conveyor belt system 2, as already mentioned, has rollers 20, which are arranged in pairs on system parts 21 in order to hold the first, upper conveyor belt edge 11 flat in the transverse direction Y and the second, lower conveyor belt edge 12 obliquely from below on the profile 13. The distance between the two rollers 20 from each other or from the conveyor belt edges 11, 12 is selected such that the movement of the pocket conveyor belt 1 in the direction of movement A along the longitudinal direction X is enabled and, at the same time, the conveyor belt edges 11, 12 can be securely held and guided as they pass through the pair of rollers 20.

[0044] Since temperatures can occur in known pocket conveyor belts 1 and in known pocket conveyor belt systems 2 due to the pressure of the rollers 20 on the conveyor belt edges 11, 12, which can be disadvantageous for the pocket conveyor belt 1, the invention proposes the detection and consideration of the temperature, in particular of the conveyor belt edges 11, 12 of the pocket conveyor belt 1 during operation of the pocket conveyor belt system 1 as follows: Within the conveyor belt edges 11, 12, a textile fabric layer 13a is closed as a strength member 13a in the longitudinal direction X and arranged in sections at the height Z, cf. Fig. 3, so that forces in the transverse direction Y can be better absorbed. A sensor element 4 is connected to this strength member 13a of the first, upper conveyor belt edge 11, so that the sensor element 4 is arranged at the height Z of the tension member 4 in the transverse direction Y between the strength member 13a and the contact surface of the conveyor belt edge 11, 12 to the roller 20 rotating about the vertical direction Z. A further sensor element 4 is arranged in the second, lower conveyor belt edge 12 where the profile 13 is held obliquely from below by a roller 20. This sensor element 4 is arranged between this contact surface and the tension member 14 of the lower conveyor belt edge 12.

[0045] This allows a temperature to be measured precisely where the greatest pressure is exerted on the conveyor belt edge 11, 12, thus generating the highest temperature. In this way, according to the invention, the temperature at both conveyor belt edges 11, 12 can be measured and taken into account during operation of the pocket conveyor belt 1 or the pocket conveyor belt system 2.

[0046] In order to reliably define the positioning and in particular the orientation of the sensor element 4 and to maintain it both during the vulcanization process and during operation, a sensor antenna 41 of the sensor element 4 is designed as an elongated thread and is woven several times into the reinforcement member 13a designed as a fabric, see. Fig. 2. The sensor antenna 41 is connected to a sensor body 40, which contains all of the electronic and sensory components of the sensor element 4 and can therefore also be referred to as sensor electronics 40. The sensor electronics 40 is designed as an RFID transponder chip, so that data such as commands can be received wirelessly from outside and data such as temperature measurements can be sent wirelessly to outside. In addition to a temperature sensor, the sensor element 4 also has a pressure sensor, which is designed and arranged, in particular oriented, to detect a pressure in the transverse direction Y. The sensor element 4 furthermore has a unique identification coding, which can also be sent wirelessly to outside as data.

[0047] Within the conveyor belt edges 11, 12, several sensor elements 4 are arranged in pairs, evenly distributed over the longitudinal direction X, cf. Fig. 3 and Fig. 4, so that the temperature and pressure can be recorded and taken into account at several points.

[0048] In order to first receive and then consider this temperature, pressure, and identification coding data, the pocket conveyor belt system 2 according to the invention has at least one combined transmitting / receiving unit 22, which is arranged stationary along the pocket conveyor belt 1, so that commands can be sent from the transmitting / receiving unit 22 to the sensor elements 4 of the passing pocket conveyor belt 1, and temperature, pressure, and identification coding data can be received from them. Furthermore, at least one energy transmission unit 23 is arranged stationary along the pocket conveyor belt 1, from which electrical energy can be transmitted, for example by induction, to the sensor elements 4 of the passing pocket conveyor belt 1.

[0049] These temperature, pressure, and identification coding data can be transferred to a control unit 25 of the pocket conveyor belt system 2 in order to adjust at least one roller tensioning unit 24 in the direction of movement B relative to the conveying edges 11, 12 and thereby regulate the pressure on the conveying edges 11, 12. This can also influence the temperature buildup in the conveying edges 11, 12. Preferably, each roller 20 rotating about the vertical direction Z is adjustable by means of its own roller tensioning unit 24 in order to utilize these advantages for each pair of rollers 20. List of reference symbols (part of the description) A Direction of movement / conveying direction of the pocket conveyor belt 1 B Direction of movement of the roller tensioning unit 24 X longitudinal direction; depth Y transverse direction; width Z vertical direction; height 1 pocket conveyor belt; SICON conveyor belt 10 conveyor belt body, bag; bag 11 first, upper conveyor belt edge 12 second, lower conveyor belt edge 13 Profiles of the conveyor belt edges 11, 12 13a Strength member; textile fabric layer 14 tension members; steel cables 15 Contact area / flag of the first, upper conveyor belt edge 11 16 Contact area / flag of the second, lower conveyor belt edge 12 17 Bag body 18 Carrying side of the pocket conveyor belt 1; inside of the closed pocket conveyor belt 1 19 Interior of the closed pocket conveyor belt 1 2 pocket conveyor belt systems 20 (tension) rollers 21 system components 22 Data transmitting / receiving unit 23 Energy transfer unit 24 roller tensioning unit 25 Control unit 3 Conveyed material; bulk material 4 Sensor element 40 Sensor body; sensor electronics; (RFID) transponder chip 41 Sensor antenna; Transponder antenna

Claims

[1] Pocket conveyor belt (1), with a conveyor belt body (10), preferably an elastomeric conveyor belt body (10), which is designed to receive a conveyed material (3) in the interior (19) of the closed pocket conveyor belt (1), wherein the conveyor belt body (10) has at least one sensor element (4) which is designed to detect at least the temperature of the conveyor belt body (10) at the location of the sensor element (4), characterized by , that the conveyor belt body (10) has, at least in the region of at least one sensor element (4), at least in sections, a textile reinforcement (13a), preferably a woven textile reinforcement (13a), and the sensor element (4) has a sensor antenna (41), preferably a transponder antenna (41), which is at least partially connected, preferably woven, to the textile strength member (13a). [2] Pocket conveyor belt (1) according to claim 1, characterized by , that the conveyor belt body (10) has a first conveyor belt edge (11) and a second conveyor belt edge (12), wherein at least one sensor element (4) is arranged in the first conveyor belt edge (11) and / or in the second conveyor belt edge (12). [3] Pocket conveyor belt (1) according to claim 2, characterized by in that the conveyor belt body (10) comprises an elastomer material or consists of an elastomer material into which a strength member (13a) and / or a tensile member (11) is embedded at least in sections in the region of the first conveyor belt edge (11) and / or the second conveyor belt edge (12), wherein at least one sensor element (4) is arranged between the strength member (13a) and / or between the tensile member (11) and an outer side of the conveyor belt edge (11, 12), which is designed to face a roller (20) of a pocket conveyor belt system (2). [4] Pocket conveyor belt (1) according to claim 2 or 3, characterized by that the first conveyor belt edge (11) and / or the second conveyor belt edge (12) has a profile (13) which is designed to be guided between the rollers (20) of a pocket conveyor belt system (2), wherein at least one sensor element (4) is arranged in the first conveyor belt edge (11) and / or in the second conveyor belt edge (12) at the height (Z) of the profile (13). [5] Pocket conveyor belt (1) according to one of the preceding claims, characterized by that the conveyor belt body (10) has a plurality of sensor elements (4) which are spaced apart from one another, preferably evenly, in the direction of movement (A) of the pocket conveyor belt (1). [6] Pocket conveyor belt (1) according to one of the preceding claims, characterized by , that the sensor element (4) has a transponder chip (40), preferably an RFID transponder chip (40), or is designed as such, wherein the transponder chip (40) is designed to receive data wirelessly from a transmitting unit (22) of a pocket conveyor belt system (2) and / or to send data wirelessly to a receiving unit (22) of a pocket conveyor belt system (2). [7] Pocket conveyor belt (1) according to one of the preceding claims, characterized by , that the sensor element (4) is designed to receive electrical energy wirelessly from an energy transmission unit (23) of a pocket conveyor belt system (2), and / or the sensor element (4) has a preferably rechargeable electrical energy storage device, and / or the sensor element (4) is designed to generate electrical energy, preferably piezoelectrically. [8] Pocket conveyor belt (1) according to one of the preceding claims, characterized by that the sensor element (4) is further designed to detect the pressure of the conveyor belt body (10) at the location of the sensor element (4). [9] Pocket conveyor belt (1) according to one of the preceding claims, characterized by that the sensor element (4) further comprises an identification coding which can be detected wirelessly by a conveyor belt system (2), preferably wirelessly by a receiving unit (22) of a conveyor belt system (2). [10] Pocket conveyor belt (1) according to one of the preceding claims, characterized by , that the conveyor belt body (10) has a plurality of sensor elements (4) which are spaced apart from one another, preferably evenly, in the direction of movement (A) of the pocket conveyor belt (1), wherein each sensor element (4) has an individual identification coding which can be detected wirelessly by a pocket conveyor belt system (2), preferably wirelessly by a receiving unit (22) of a pocket conveyor belt system (2). [11] Pocket conveyor belt system (2), characterized by a plurality of rollers (20) for guiding a pocket conveyor belt (1) according to one of claims 1 to 10, at least one transmitting unit (22) which is designed to transmit data wirelessly to at least one sensor element (2) of the pocket conveyor belt (1), and / or at least one receiving unit (22) which is designed to receive data wirelessly from at least one sensor element (2) of the pocket conveyor belt (1), wherein the pocket conveyor belt system (2) preferably has a combined transmitting / receiving unit (22). [12] Pocket conveyor belt system (2) according to claim 11, further characterized by at least one energy transmission unit (23) which is designed to transmit electrical energy wirelessly to at least one sensor element (2) of the pocket conveyor belt (1). [13] Pocket conveyor belt system (2) according to claim 11 or 12, further characterized by a plurality of transmitting units (22), receiving units (22), transmitting / receiving units (22) and / or energy transmission units (23) which are arranged at a distance from one another in the conveying direction (A). [14] Pocket conveyor belt system (2) according to one of claims 11 to 13, characterized by , that at least one roller (20), preferably a plurality of rollers (20), has a roller tensioning unit (24) which is designed to move at least one roller (20) in a direction of movement (B) of the roller tensioning unit (24) relative to the pocket conveyor belt (1) and thereby to press onto the pocket conveyor belt (1), wherein the pocket conveyor belt system (2) is designed to apply the pressure of the roller tensioning unit (24) to the pocket conveyor belt (1) depending on a temperature and / or depending on a pressure and / or depending on an identification coding to control and / or regulate a sensor element (2) or a plurality of sensor elements (2) of the pocket conveyor belt (1).

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