CABLE STACKER
20240150131 ยท 2024-05-09
Assignee
Inventors
Cpc classification
H01R43/28
ELECTRICITY
B65G47/44
PERFORMING OPERATIONS; TRANSPORTING
B65G57/186
PERFORMING OPERATIONS; TRANSPORTING
International classification
B65G21/20
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A cable stacker comprising a belt conveyor (21) for conveying the cable along a conveying direction, a discharge device for dropping a cable into a collection tub (241), and a guide element (50) for damping a meandering movement of the cable that is to be put down.
Claims
1-21. (canceled)
22. A cable stacker (20) with a first belt conveyor (21a) for conveying a cable (80) along a conveying direction (X), wherein the first belt conveyor (21a) is suitable for accommodating a belt (211) and there is a main frame (23) on which the first belt conveyor (21a) is arranged, and a discharge device (60) is provided for dropping a cable (80) into a collection tub (241), wherein in an area of the collection tub (241) on a side of the first belt conveyor (21a), a first guide element (50) is arranged to dampen a meandering movement of a cable that is to be put down, wherein the first guide element (50) is positional longitudinally along the conveying direction (X).
23. The cable stacker (20) according to claim 22, wherein a sensor device (52) with at least one sensor for determining a first position of the first guide element (50), wherein the sensor device (52) is electrically connected to a control device (29, 99) or to a central control system (99) of a cable-processing device (90), and/or a drive device (51) for the movement of the first guide element (50) is connected to the first guide element (50).
24. The cable stacker (20) according to claim 23, wherein the drive device (51) for the movement of the first guide element (50) is electrically connected to the control device (29, 99), or is electrically connected to the central control system (99) of a cable-processing device (90).
25. The cable stacker (20) according to claim 23, further comprising a protective cover (25), and the first guide element (50) is arranged on the protective cover (25), wherein the protective cover (25) is, in particular, moveable, preferably tiltable, and contains fixing, damper and/or spring elements.
26. The cable stacker (20) according to claim 22, wherein the first guide element (50) is arranged transversely to the conveying direction (X) and obliquely to the perpendicular.
27. The cable stacker (20) according to claim 26, wherein the first guide element (50) forms an angle ? of less than 90?, preferably 50?-80?, being furthermore preferred, 55?-75?, in particular, 57? to the top side of the belt conveyor.
28. The cable stacker (20) according to claim 22, wherein the first guide element (50) is spaced away from the belt conveyor (21), wherein, preferably, on a plane of the belt conveyor (21), the distance between the first guide element (50) and the belt conveyor (21) is between 20 and 50 mm, preferably between 30 and 40 mm.
29. The cable stacker (20) according to claim 22, wherein the side of the first guide element (50) facing a conveyor track (22) has a rounded shape.
30. The cable stacker (20) according to claim 22, wherein the first guide element (50) projects over the belt conveyor (21a) to at least a working height of the discharge device (60) above the belt conveyor (21a), wherein the height of this projection is at least about 20 mm and a maximum of about 60 mm.
31. A method for safely transporting a cable (80) on a cable stacker (20) according to claim 22, wherein the method comprises the following steps: a) selecting at least one cable parameter; b) transferring of the first guide element (50) to a first position along the conveying direction (X), wherein the first position is matched to a cable length of the cable to be conveyed; c) checking the first position of the first guide element (50) using a sensor device (52); d) transferring of control data to a control device (29, 99); e) conveying the cable (80) on the first belt conveyor (21a).
32. The method according to claim 31, wherein the transfer of the first guide element (50) to the first position in step (b) is carried out by means of the drive device (51).
33. A cable stacker (20) comprising a belt conveyor (21) for transporting a cable (80) along a conveying direction (X) and a discharge device (60) for gripping, holding and dropping the cable into a collection tub (241) on a side of the belt conveyor, wherein the discharge device is rotated around an axis aligned transversely to the conveying direction and approximately perpendicular to the belt conveyor, and the axis positioned above the belt conveyor, wherein a first guide element (50) is arranged in an area of the collection tub and is positional longitudinally along the conveying direction (X).
34. The cable stacker (20) according to claim 33, wherein a positioning area of the first guide element (50) extends from a first position in the conveying direction in front of the axis to a second position in the conveying direction behind the axis.
35. The cable stacker (20) according to claim 34, wherein the discharge device comprises a swivel arm having a radius, and the positioning area of the first guide element (50) is at least 40%, preferably at least 50% of the radius.
36. A cable storage system (600) of a cable-processing machine comprising a swivelling gripper arm (604, 60) for holding, guiding and dropping a cable (80) in a working space (601) adjacent to a storage space (602) in a direction of cable feed, wherein the cable storage system has at least one boundary edge (603) which separates the working space from the storage space, wherein the boundary edge (603) is used as an inlet guide for guiding the gripper arm (604, 60) of the cable (80) to be deposited in the storage space, and the boundary edge (603), or the inlet guide, is arranged in a moveable manner.
Description
[0091] The reference list, as well as the technical content of the patent claims and figures, is part of the disclosure. The figures and embodiments are described in a coherent and comprehensive matter. Identical reference numbers signify the same components; reference numbers with different indices indicate functionally identical or similar components. Enumerations, such as first, second, . . . others are only used to distinguish between components.
[0092] The figures show:
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[0113] The cable-processing device 90 is designed as a swivel arm machine and consists of two swivel arms 60, 61, which move or swivel the two ends of the cable 80 (not shown) to the respective cable-processing stations 70, 71. After processing in the cable-processing stations 70, 71, the cable 80 is transferred to the cable stacker 20. This consists of a first belt conveyor 21, which conveys the cable 80 along the conveying direction X. The first belt conveyor 21 comprises a belt 211, two matching conveyor rollers or pulleys 213a, 213b and a drive device 214 for active rotation of one of the two pulley 213a. The drive device 214 has an electric motor, for example with an integrated gearbox, as a drive. The conveyor track 22 of the cable stacker 20 comprises an inlet track section 221 and an outlet track section 222. In the inlet track section 221, the cable 80 is dropped by the discharge device 60, wherein, in this embodiment, a swivel arm of the cable-processing device 90 performs the function of this discharge device 60.
[0114] Alternatively, the discharge device 60 can also be a stand-alone assembly, which is arranged on the cable stacker 20. This is useful and necessary for alternative cable-processing devices (not shown), designed for example as a transfer or rotary transfer machine for example.
[0115] The dropped cables 80 fall into the collection area 24, which typically comprises a tiltable collection tub 241 (
[0116] In order to prevent cable 80 from falling unintentionally and/or prematurely from the first belt conveyor 21, a discharge barrier device 30 with a first discharge barrier 31a and with a first counter-barrier 40 is provided, at least in the inlet area 221. The first discharge barrier 31a is used to prevent uncontrolled sliding of cable 80 off the conveyor track 22, wherein the first discharge barrier 31a is moveable relative to the counter-barrier 40a. The discharge barrier device 30 is located in the area of the pulley 213b, which moves passively with the belt 211.
[0117] To control all sensors and drive elements of the cable stacker 20, they are electrically connected to a control device 29. This control device 29 is part of the cable stacker 20 and is, in turn, connected to a central control system 99 of the cable-processing device 90.
[0118] Alternatively, the local control device 29 in the cable stacker 20 can be dispensed with. For this purpose, the control cables of all sensors and drive elements of the cable stacker 20 are directly electrically connected to the central control system 99 of the cable-processing device 90.
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[0120] The first discharge barrier 31a is moved by a drive device 32a. This drive device 32a consists of two pneumatic cylinders 321a, 321b (only visible in
[0121] In order to prevent the cable 80 from falling off the belt conveyor 21 in an unwanted way, it is tilted in relation to the main frame 23 and the horizontal Y by the tilt angle ?, which is 6? here. The tilted coordinate system is indicated by the letters Y and Z and tilted with respect to the normal coordinate system Y, Z (horizontal, vertical) around the X-axis with the tilt angle.
[0122] In order to also prevent the cable 80 from falling on the opposite side as well, the counter-barrier 40 is used. The belt 211, which is designed as a flat conveyor belt 211f, overlaps the counter-barrier 40 in its width direction Y and the gap SZ between flat conveyor belt 211f and counter-barrier 40 is in the Z direction. As a result, a lateral guide of the flat conveyor belt 211f can be dispensed with (as in
[0123] In an alternative embodiment of the cable stacker (
[0124] In particular, the flat conveyor belt 211f has a special surface finish, which enables a particularly high coefficient of friction to the cable 80 in conveying direction X. Furthermore, the surface finish of the flat conveyor belt 211f is designed in such a way that, on the one hand, wear and tear is kept as low as possible and thus enables a long service life, and on the other hand, for contact to be made with cable 80 as gently as possible so as not to cause any damage there.
[0125] The cables 80 are moved in the direction of the collection area 24 (block arrow) when they are dropped and then fall into the collection area 24, in which the tilting collection tub 241 is arranged. The tilting is carried out by means of a drive 242, here designed as a pneumatic cylinder, and again connected to the valve battery 322 and the control device 29, 99 by means of hoses, sensors and control cables (not shown). Underneath the tilting collection tub 241 there is typically another tray (not shown) for the user to remove the cables.
[0126] The tilting collection tub 241 comprises a fixing device 35. The fixing device 35 fixes the first discharge barrier 31a in its inactive position.
[0127] Alternatively (not shown), such a fixing device can also be designed in such a way that it fixes the first discharge barrier 31a in the active position (above). In an extended embodiment (not shown), the fixing device can also be designed in such a way that the movement of the collection tub 241 is mechanically coupled to the movement of the discharge barrier 31a and therefore, only one drive is necessary for both movements, i.e., the drive device 32a can be omitted and/or replaced by a simple, passive force element (e.g., a spring).
[0128] In order to improve safety for the user and to prevent the cable 80 from being shot out beyond the collection area 24, a protective cover 25 is provided (schematically shown). The protective cover 25 typically comprises transparent areas to allow the user to visually view the process even when closed and can be folded up for service purposes. For this purpose, the protective cover 25 is equipped with the aid of a hinge and with a snap-in and/or spring mechanism with integrated damper elements (e.g., gas-pressure springs, not shown), which fixes the uncovered position and/or reduces the effort required when uncovering or distributes it more evenly over the overall movement. Preferably, the protective cover 25 is connected to the main frame 23. In order to further improve the storage quality, a guide element 50 is preferably integrated in this protective cover 25 (
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[0130] The method for the safe transport of a cable 80 on the cable stacker is illustrated using the example of the cable stacker 20 in accordance with
[0134] The control device 29 or the central control system 99 are connected to the database for the exchange of cable parameters so that cable parameters that have already been stored can be accessed.
[0135] After step c), at least one cable-processing tool of a cable-processing station 70 is activated for the trailing cable end 80.
[0136] After conveying the cable on the first belt conveyor 21 (step c)), the step of transferring the first discharge barrier (31a) to an inactive position (step d,
[0137] The transfer of the first discharge barrier (31a) to an inactive position (step d,
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[0139] The alternative drive device 32b for the alternative discharge barrier device 30a comprises a single pneumatic cylinder 321c, which moves the alternative discharge barrier 31c on one side. On the other hand, the alternative discharge barrier 31c is rotatably mounted, for example with a plain bearing 34. In order to prevent overdetermination and thus to keep the movement smooth, some play in the X direction is provided in the area of the plain bearing 34, for example through an oblong hole (not shown) in the discharge barrier 31c. Furthermore, the attachment of the discharge barrier 31c to the pneumatic cylinder 321c is designed in such a way that small rotations around the Y axis are possible, by elastic construction or by using an additional swivel joint (not shown).
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[0141] The alternative cable stacker 20b in accordance with
[0142] The alternative cable stacker 20c in accordance with
[0143] In both embodiments described above, it is also possible to arrange 15 two or more than two modules side by side to extend the length of the conveyor track.
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[0145] In the case of the cable stacker 20d shown in
[0146] The cable stacker 20e shown in
[0147] An adjustment mechanism 41a for the counter-barrier 40a is arranged on the two other embodiments of the cable stacker 20d (
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[0149] The main body of the adjustment mechanism 41 is connected to the counter-barrier 40 and comprises at least one oblong hole 413, which allows adjustment/displacement in the Z direction. Using at least one screw 411 and a washer 412 as a fastening device, the adjustment mechanism 41 in the area of this oblong hole 413 is connected to the main frame 23 of the cable stacker 20f. The washer 412 is designed in such a way that the screw 411 does not loosen in the event of vibrations, for example as a ribbed washer or as a wedge-locking washer (Nord-Lock). A plurality of screws 411, washers 412 and oblong holes 413 are provided for each adjustment mechanism 41 (only one is visible in each section view). If all screws 411 are slightly loosened by the user (
[0150] In order to adjust the desired gap SZ between the belt transport surface 2111 of the flat conveyor belt 211f and the mating surface 40, the adjustment mechanism 41 comprises an adjustment aid 414. For this purpose, all screws 411 are first loosened slightly and the adjustment mechanism 41 with the counter-barrier 40 is shifted so that the gap between the flat conveyor belt 211f and the counter-barrier 40 reaches a maximum level. The adjustment aid 414 is pushed into this gap (
[0151] The position with the adjustment aid 414 still in position but the screws 411 already tightened is shown in
[0152] The position with the remote adjustment aid 414 is shown in
[0153] In a further, alternative embodiment of a cable stacker described above, there is additionally a sensor device, using which the gap between a belt and the counter-barrier can be detected (not shown). The sensor device comprises a distance sensor to detect the distance between the belt and the first counter-barrier and sends the sensor data to the control device. The control device comprises a computing unit and is connected to a database for the exchange of control data. The control data comprises control commands to control the drive device of the counter-barrier and/or control commands to control the conveyor rollers of the belt conveyor. The computing unit comprises a program that is suitable for evaluating the sensor data and calculating a gap width and comparing it with a reference value. For example, the sensor device comprises an imaging sensor, such as a camera.
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[0155] After the final processing of the trailing cable end in one of the cable-processing stations 70, the swivel arm of the discharge device 60 moves to the discharge position (approximately 10?-20? obliquely to the longitudinal axis of the conveyor track 22). This (and earlier) swivel movement, which is often violent due to high speed, results in a meandering movement in cable 80, which, depending on the cable parameters, can lay the leading cable end, for example, outside the collection area 24. This problem is more serious with shorter cables, shorter cycle times, or higher conveying speeds (e.g., 12 m/s) of the cable stacker 20. Favourably, the guide element 50 dampens the meandering movement of longer cables and thus ensures an increased storage quality of the cables 80 that is to be put down The inclined position of the guide element 50 results not only in damping but also in a force effect on the cable from top to bottom in the direction of storage. In the case of short cables or wires, it is not so much a matter of dampening a lateral movement as of preventing a cable piece or the leading cable end from swerving laterally beyond the collection tub. Therefore, the guide element is particularly important, particularly for short cables.
[0156] In the embodiment of
[0157] On the plane of conveyor track 22, the distance between the beam and the conveyor track is preferably between 20 and 50 mm, preferably between 30 and 40 mm. Favourably, the spaced-away guide element 50 allows the cable 80 to bend, which favours the sliding of the cable from the conveyor track 22 into the collection tub 241.
[0158] As shown in
[0159] Preferably, the side of the guide element facing the conveyor track 22 has a rounded shape. Favourably, this prevents the cable from being damaged or material-stressed during the dampening of the meandering movement.
[0160] In order for the user to ensure that the cables are properly put down and that he/she does not forget the displacement depending on the cable parameters, it is favourable to detect the position of the guide element 50 or a detection element 501 (e.g., a magnet) arranged on it by means of a sensor device 52 and/or to actively drive the movement of the guide element 50 by means of a drive device 51, both electrically connected to the control device 29, 99 of the cable stacker 20 or the cable-processing device 90. Alternatively, the detection element can be integrated in the drive device, preferably in the cylinder piston of the pneumatic cylinder.
[0161] In a supplementary embodiment (not shown), this drive device 51 is designed as an electric drive axle and the sensor device 52 as a rotary encoder or absolute encoder. Thus, the position of the guide element 50 can be actively adjusted, and indeed continuously or with any number of positions.
[0162] In another embodiment (not shown), a drive device is dispensed with, and the sensor device consists of at least one binary sensor, for a position of the first guide element. If this position does not match the current processed cable length, the cable stacker or its drive devices or the cable-processing device or its drive devices stops and informs the user that the guide element must be moved to the correct position.
[0163] In an extended embodiment (not shown), a plurality of sensors are installed or an absolute encoder, wherein a drive device can still be dispensed with.
[0164] In den
[0165] Alternatively, the sensor device 52 can also be integrated in the area of the pneumatic cylinder, as shown in
[0166] As an alternative to the integration of the guide element 50 into the protective cover 25, it can also be attached to another element of the cable stacker. It is also possible to use a plurality of guide elements per cable stacker.
[0167] The method for the safe transport of a cable 80 on the cable stacker is illustrated using the example of the cable stacker 20g in accordance with
[0172] Prior to step a), at least one cable parameter of the cable can be selected, for example from a database stored in the control device 29, 99. The control device 29 or the central control system 99 are connected to the database for the exchange of cable parameters. The transfer of the first guide element 50 to the first position (step a) is carried out by means of the drive device 51.
[0173] A further embodiment of the invention comprises an additional, table-shaped repository plate 243, which can optionally be attached to the edge of the collection tub 241 and projects approximately horizontally from it in order to prevent skipping of the free collection area in the collection tub 241 in the case of particularly short cables 80 and wires 80 that is to be put down Where applicable, short cables can also be placed directly on the repository plate 243 and then fall inwards from there into the collection tub 241.
[0174] A cable stacker 20 according to the invention comprises a belt conveyor 21 for conveying a cable 80 along a conveying direction (X) and a discharge device 60 for dropping the cable into a collection tub 241 on the side of the belt conveyor, wherein the discharge device is rotatably arranged around an axis aligned transversely to the conveying direction approximately perpendicularly aligned with the belt conveyor, and the axis is positioned above the belt conveyor (See
[0175] In one embodiment, the discharge device comprises a swivel arm having a radius, and the positioning area of the guide element is at least 40%, preferably at least 50% of the radius.
[0176] In a further embodiment, the positioning area of the guide element extends ? in front of the axis and ? behind the axis in the cable-conveying direction (X).
[0177] In a further embodiment, the second position is so far behind the axis that the angle formed by the discharge device or the gripper by the discharge device 80 when the discharge device 60 rotates 1200 (in the direction of a cable-processing station 70) is at least 90?, preferably at least 100?. The favourable effect of this is that, in the case of a long cable, the cable 80 is not pulled out of the belt conveyor 21 by the rotation of the discharge device 60 around the guide element 50 and that loops are formed which prevent or make it difficult to put down the cables.
[0178] A cable storage system according to the invention 600 (see
[0179] In one embodiment of the cable storage system 600, the storage space 602 comprises two side boundaries (aligned with each other) between which the cable 80 is guided in the direction of cable feed in the operating state. The first side boundary is arranged in a non-moveable manner and extends into the working space 601. The second side boundary comprises the boundary edge 603 and is arranged in a moveable manner.
[0180] In one embodiment of the cable storage system 600, the working space 601 and storage space 602 are arranged horizontally adjacent, and the boundary edge 603 or the inlet guide is inclined obliquely to the plumb line, preferably at an angle of 50?-80?, being furthermore preferred, 55?-75?, in particular, 57?.
[0181] In one embodiment of the cable system 600, all boundary edges 603 of the storage space 602 or the entire storage space relative to the working space 601 are displaced depending on the cable parameters of the cables 80 that is to be put down.
REFERENCE LIST
[0182] 20, 20a-g cable stacker [0183] 21, 21a-d belt conveyor [0184] 211 belt [0185] 211f flat conveyor belt [0186] 2111 belt transport surface [0187] 2112 belt end face [0188] 211w belt with longitudinal profile (belt bead) [0189] 212 modular frame [0190] 213, 213a-b pulley (conveyor roller) [0191] 214 drive device (electric motor) [0192] 215 lateral guide [0193] 22 conveyor track [0194] 221 inlet track section [0195] 222 outlet track section [0196] 23 (main) frame [0197] 231, 231a-b guide attachments [0198] 24 collection area [0199] 241 collection tub (tilting tub) [0200] 242 drive (for 241) [0201] 243 repository plate [0202] 25 protective cover [0203] 29 control device [0204] 30, 30a discharge barrier device [0205] 31 discharge barriers [0206] 31a-c discharge barriers [0207] 311, 311a-c guide grooves [0208] 32, 32a-b drive device [0209] 321, 321a-c pneumatic cylinders [0210] 322 valve (battery) [0211] 323 hose/hoses [0212] 33 sensor device [0213] 331 sensor(s) (for 31) [0214] 332 control cable [0215] 34 plain bearings [0216] 35 fixing device [0217] 40,40a counter-barrier [0218] 41, 41a adjustment mechanism [0219] 411 screw [0220] 412 washer [0221] 413 oblong hole [0222] 414 adjustment aid [0223] 50 (first) guide element (guide plate) [0224] 501 detection element (detection area) [0225] 51 drive device (for 50) [0226] 52 sensor device (for 50) [0227] 60 discharge device (swivel arm) [0228] 600 cable storage system [0229] 601 working space [0230] 602 storage space [0231] 603 boundary edge [0232] 604 swivelling gripper arm [0233] 61 main swivel (swivel arm) [0234] 70 cable-processing station(s) [0235] 71 cable-processing station(s) [0236] 80 (processed) cable or wire, line, fibre-optic cable or the like [0237] 90 cable-processing device [0238] 99 central control system [0239] A sectional plane [0240] ? tilt (angle) [0241] ? first guide element angle [0242] SY, SZ gap [0243] X (conveyor) direction for 80 [0244] Y direction (horizontal, transverse to X) [0245] Y direction (parallel to the belt, transverse to X) [0246] Z direction (vertical) [0247] Z direction (orthogonal to the belt, transverse to X)