Ramp device for a spinning can and spinning machine

Abstract

The invention relates to a ramp device (2; 3) for a spinning machine (1) which can be placed on a ground surface (6) for overcoming a height difference (5) between the ground surface (6) and a doffer placement position (40) of the spinning machine (1) which is elevated relative to the ground surface (6), wherein the ramp device (2; 3) has a support structure (19) which can be placed on the ground surface (6) and which defines a placement plane (E), characterized in that the ramp device (2; 3) has an upper side (43) which is movable for a non- manned transport of a spinning doffer (4) and which is arranged on the support structure (19), the upper side having two outer moving surfaces (20, 21) which are spaced apart from one another and at least one inner moving surface (22, 23) between the outer moving surfaces, wherein the inclination of the at least one inner moving surface (22, 23) is at least locally greater than the inclination of each outer moving surface (20, 21) in the ramp longitudinal direction (X). The invention also relates to a spinning machine (1) having at least one such ramp device (2, 3).

Description

TECHNICAL FIELD

[0001] The invention relates to a ramp device for a floor-mountable spinning machine for overcoming a height difference between the floor and a raised can position of the spinning machine, wherein the ramp device has a floor-mountable support structure defining a mounting plane. The invention further relates to a spinning machine having such a ramp device. BACKGROUND

[0002] In spinning mills, spinning cans, also called sliver cans or simply cans, are used for transporting slivers between spinning machines, where the slivers are deposited into empty spinning cans or taken from full spinning cans for further processing of the supplied slivers. Spinning cans are currently still mainly moved between spinning machines by hand. In order to be able to move the cans more easily into and out of the raised can positions of the spinning machines, various ramp devices are known. EP 3165635 B1 and EP 3986819 A1 each disclose a ramp device for a can pusher on a drawing frame, which has a ramp with inclined side walls. Another ramp device is known from EP 3331791 B1, which is attached to the floor of a can changer and is configured for extra-large cans with a diameter of 1200 mm.

[0003] For decades, efforts have been made to automate the labor-intensive transport of spinning cans. However, the challenge is how to automatically handle the cans at so-called floor spinning machines, whose can positions are raised.

[0004] DE 3621370 A1 discloses an automatically controlled transport trolley with a loading or unloading device for spinning cans. The transport trolley has a roller walkway on which the spinning cans are brought to the floor during transport. For unloading, the transport trolley is moved to the raised filling position of the spinning cans and the spinning cans are moved to the filling position by means of the driveable rollers of the roller walkway. However, the disadvantage is that such a transport trolley is quite costly in terms of purchase and operation. SUMMARY

[0005] It is the task of the invention to provide a device which simplifies the automatic handling of spinning cans at floor spinning machines. It is also the task of the invention to provide a floor spinning machine which allows the automatic handling of spinning cans in a simple and low-cost manner.

[0006] This task is solved by a ramp device of the type mentioned at the outset in that the ramp device has an upper side, which is available for the movement of the unmannedly transported spinning cans and which is arranged on the support structure, which upper side has two outer movement faces spaced apart from one another and at least one inner movement face between them, wherein in the ramp longitudinal direction the slope of the at least one inner movement face is at least locally greater than the slope of each outer movement face.

[0007] In other words, the ramp device is suitable for the movement of unmannedly transported spinning cans. Since the unmannedly transported spinning cans are prevented from tipping over when moving over the ramp device by the longitudinally inclined differently sloped movement faces of the movable upper side. Thereby, the unmannedly transported spinning cans can autonomously move over the ramp device in order to be able to move into the elevated can deposit position or to move out of the can deposit position. By means of the ramp device, the costly unloading and loading of the spinning cans from the unmanned transport at the spinning machine is saved, since the ramp device is now designed in such a way that the spinning cans can be moved as a whole, i.e. with their own movement drive or a temporarily configured unmanned transport trolley, AGV (abbreviation for automatic guided vehicle) or similar device, on the ramp device. Whether the spinning cans have their own movement drive, for example in the form of a fixedly configured AGV, or are transported by means of an unmanned transport trolley (AGV, etc.), the invention refers to this unit as "unmannedly transported spinning cans".

[0008] Subsequently, for the sake of readability, the "at least one inner movement face" is referred to as "inner movement face", wherein it is hereby also meant that exactly one or more inner movement faces are meant. If the exact number is important, it will be indicated accordingly.

[0009] If spatial indications of "upper", "lower", "above" and "below" are used, only the relative arrangement of the relevant components to one another is described. These indications refer to the ramp device when it is placed on the ground in order to overcome a height difference ("placed state"). The upper side can be arranged on the side of the support structure which faces away from the placement plane.

[0010] In the placed state, the placement plane can be oriented parallel to the ground, or in other words, horizontally, and can lie flat on the ground. The slope in the ramp longitudinal direction can also be referred to as longitudinal slope. The ramp longitudinal direction can extend in the direction in which the ramp device is available for the movement of the unmannedly transported spinning cans. The slope can be determined by specifying an inclination angle. In particular, the respective inclination angle indicates the slope of the respective reference face of the upper side in the ramp longitudinal direction relative to the placement plane. The respective reference face of the upper side can comprise the respective outer movement face or inner movement face or only individual sections thereof.

[0011] The ramp device can have three ramp sections in the ramp longitudinal direction, namely a lower ramp section, a middle ramp section and an upper ramp section.

[0012] The angle of inclination between the inner running surface of the downhill section and the lying plane can be zero degrees. This means that the inner running surface of the downhill section can extend parallel to the lying plane or the inner running surface of the downhill section has zero inclination. Furthermore, the angle of inclination between each outer running surface of the downhill section and the lying plane can be greater than zero degrees. Due to the different inclinations of the running surfaces, the ramp device is particularly suitable for moving spinning cans of unmanned transport with three, four or more than four wheels, since their centrally arranged running wheels, in particular support wheels, can roll onto the inner running surface. The inner running surface in the downhill section can extend parallel to the lying plane, whereby the starting line of the transition of the inner running surface to the ramp is set back with respect to the starting lines of the two outer running surfaces, which are already inclined in the downhill section. This facilitates the transition of the spinning cans from the ground to the ramp device and vice versa, thereby reducing the spring travel of the spring support wheels of the spinning cans of unmanned transport and allowing a ramp device to be provided which is shorter in overall construction.

[0013] The inner running surface of the downhill section can comprise at least one flat movable plate, which can be held on a support structure. This increases the stability of the ramp device. In order to reduce the self-weight of the ramp device and to manufacture it sometimes more cost-effectively, the inner running surface of the downhill section can also be formed by the ground, thus being available for use only in the lying state.

[0014] Furthermore, the angle of inclination between the inner running surface of the middle section and the lying plane is greater than the angle of inclination between each outer running surface of the middle section and the lying plane. Thus, in the middle section, the height level of the inner running surface changes more quickly than the height level of the outer running surfaces. Thereby, the overall extension of the ramp device in the longitudinal direction of the ramp remains as small as possible.

[0015] The inclination of the inner running surface of the middle section can be constant. This facilitates the manufacture of the ramp device. Alternatively, the inner running surface of the middle section can have a curved course. For example, the inner running surface of the middle section can have an S-shaped curved course.

[0016] Furthermore, the inclination of the inner running surface of the upper ramp section can be smaller than the inclination of the outer running surface. This increases the stability of the unmanned transport spinning can when entering and leaving and thus prevents it from tipping over. Furthermore, the inclination of the inner running surface of the upper ramp section is more gently inclined than the inclination in the middle ramp section. For example, the angle of inclination between the inner running surface of the upper ramp section and the lying plane can be zero degrees. In particular, the inner running surface of the upper ramp section is oriented parallel to the lying plane of the ramp device. Thus, the inner running surface of the upper ramp section can determine the height level reached by the outer running surface at the end of the upper ramp section facing the spinning machine. Alternatively to a horizontal orientation, the inner running surface of the upper ramp section can be inclined with a small inclination, in particular a maximum of 2 degrees. It is advantageous here that the inclination of the inner running surface of the upper ramp section is smaller than the inclination of the outer running surface in the upper ramp section.

[0017] According to one design, the inclinations of the two outer running surfaces are identical or constant over the three ramp sections. This improves the mobility of the ramp device and reduces the manufacturing costs of the ramp device. The inner running surface preferably has a constant inclination in each ramp section, for example zero degrees in the lower ramp section and the upper ramp section, and for example a constant inclination with an angle of inclination in the range of 0.5 degrees to 7 degrees in the middle ramp section. Instead of a constant inclination, the middle ramp section can also have a curved course, for example.

[0018] According to one alternative design, the outer running surfaces have a curved course over the ramp sections. The outer running surfaces can have an S-shaped curved course, for example. This likewise improves the mobility of the ramp device. The inner running surface preferably likewise has a curved course in the middle ramp section, wherein a constant inclination is also possible in principle.

[0019] Furthermore, the ramp device can have a connection section for connecting the ramp device to a stationary component of the spinning machine. Thus, the ramp device can be fastened to the spinning machine in a simple manner as a stationary, or rather positionally fixed, ramp. In order to facilitate the transition of the unmanned transport spinning can from the elevated can deposit position onto the ramp device and vice versa, the inclinations of the outer running surface and the inner running surface of the connection section are both zero degrees with respect to the lying plane of the ramp device. Thus, the ramp device is only inclined in particular the ramp sections.

[0020] It can furthermore be provided that the inner running surface adjoins the respective adjacent outer running surface. Thereby, a gap or a slit between the running surfaces is avoided in a top view, into which a wheel of the unmanned transport spinning can could inadvertently move. In order to close a gap between the inner running surface and the outer running surface that arises due to possible height differences, if necessary, a side plate can be provided, which can be arranged on or surrounded by the support structure.

[0021] The support means can be configured in multiple parts or in one piece. The support structure can comprise struts, supports, etc. The upper side of the ramp device, which is available for movement, can be formed by a plate, a metal profile, a rail, etc. The components of the ramp device and / or the support structure can be made of metal or other materials which are intrinsically stable and can bear weight.

[0022] The ramp device is particularly suitable for multi-lane transport of the spinning cans without human operation. For example, the ramp device has a separate movement face for each movement lane of the spinning cans without human operation. The width of the ramp device, for example of the individual movement faces, the distance of the movement faces from one another, the inclination of the individual movement faces, etc., are therefore adapted to the arrangement of the running wheels, their distance in the longitudinal direction of the movement means and / or in the transverse direction of the movement means, etc. In this way, the spinning cans without human operation used in the spinning mill can be taken into account when designing and dimensioning the ramp device. For example, the ramp device can be designed in such a way that the spinning cans without human operation roll onto the two outer movement faces with their driven wheels and onto the inner movement face with at least one non-driven support wheel.

[0023] Preferably, the outer movement faces are of the same length and / or of the same width. The ramp device can be used as an entry ramp and / or as an exit ramp. The ramp device can also be referred to as a slope device by virtue of the inclined movement faces. In particular, the movement faces of the ramp device extend in the ramp longitudinal direction. The ramp device can therefore be referred to as a straight ramp device or a straight slope device.

[0024] The total length of the ramp device can be between 500 mm and 2000 mm. The total length is preferably between 750 mm and 1250 mm. The lower ramp section and / or the upper ramp section can be appropriately between 50 mm and 300 mm. In another advantageous embodiment, the length of the lower ramp section and / or the upper ramp section is between 100 mm and 200 mm. The length of the upper ramp section can at least approximately correspond to the length of the lower ramp section.

[0025] It can furthermore be provided that the ramp device has at least one guide element for contactless guidance of the spinning cans without human operation in the ramp longitudinal direction through the ramp device. In particular, the at least one guide element has a magnetic strip. The magnetic strip can be arranged next to or on the inner movement face. Other positions are likewise possible. In this way, a simple to arrange guidance possibility is created, in which the spinning cans without human operation equipped with a magnetic strip reading device can follow the course or movement path defined by the magnetic strip. Further or hybrid guidance systems, such as optical strip tracking, inductive lane guidance, etc., are likewise conceivable.

[0026] A further solution to the above-mentioned tasks is a spinning machine, which can be installed on the ground or is installed on the ground, wherein the spinning machine has a raised creel arrangement position relative to the ground and at least one of the above-described ramp devices. The advantages resulting from the spinning machine according to the application are the same as the advantages described in connection with the ramp device according to the application, so that here reference is made briefly to the above description. It is understood here that all the mentioned design variants of the ramp device can be transferred to the spinning machine and vice versa.

[0027] The spinning machine can have a floor which comprises the raised creel arrangement position. The creel arrangement position can comprise a filling position for filling the unmannedly transported spinning creels. The spinning machine can have a lap device at the filling position for depositing a sliver into the spinning creel. A creel turret which delimits the filling position can be integrated into the floor. The unmannedly transported spinning creels are positioned in a manner known per se on the creel turret under the lap device, in particular under the lap plate during the filling process.

[0028] According to one design variant, the spinning machine has only one ramp device. This ramp device serves as entry and exit ramp. According to an alternative design variant, the spinning machine has exactly two ramp devices, whereby a first of the two ramp devices is arranged as entry ramp before the raised creel arrangement position and a second of the two ramp devices is arranged as exit ramp after the raised creel arrangement position. The two ramp devices can be oriented parallel or at right angles to each other, for example, in the direction of extension.

[0029] It can furthermore be provided that the spinning machine has a guiding device for contactless guiding of the unmannedly transported spinning creels through the at least one ramp device up to the raised creel arrangement position or the floor. The guiding device can have guiding elements on the respective ramp device and on the raised creel arrangement position or the floor, which can comprise magnetic strips, for example. Furthermore, the guiding device can comprise an RFID tag arranged on the creel arrangement position, in particular on the creel turret. The "radio frequency identification" technology (short: RFID) allows a contactless transmission of data stored on the RFID tag or transponder. On the RFID tag, for example, address information can be stored, so that a control unit of the unmannedly transported spinning creel recognizes the arrival of the address point, here the defined creel arrangement position of the spinning machine.

[0030] The contactless guiding of the unmannedly transported spinning creels can be realized not only in the so-called overhead variant of the spinning machine with the raised creel arrangement position, but also in the so-called underground variant of the spinning machine, wherein the creel arrangement position is arranged without height difference to the ground.

[0031] The spinning machine can be, for example, a drawing frame, a combing machine, a carding machine, a can changer, etc. BRIEF DESCRIPTION OF DRAWINGS

[0032] A preferred embodiment is set forth below with the aid of the accompanying drawings. In which:

[0033] Figure 1 shows a perspective view of a spinning machine with a ramp device according to the present application;

[0034] Figure 2 shows a perspective view of the ramp device according to the present application of Figure 1

[0035] Figure 3 shows a side view of the ramp device of Figure 2

[0036] Figure 4 shows a sectional view through the ramp device according to the section line IV-IV in Figure 2

[0037] Figure 5 shows a sectional view through the ramp device according to the section line V-V in Figure 2

[0038] Figure 6 shows a schematic side view of the ramp device of Figure 2

[0039] Figure 7 shows a schematic side view of the ramp device according to the present application according to a further embodiment; and

[0040] Figure 8 shows a bottom view of a spinning can following a magnetic strip with unmanned transport.

[0041] ​​​​​1. Riser arrangement (2; 3) for a spinning machine (1) which can be positioned on a ground surface (6) for overcoming a height difference (5) between the ground surface (6) and a doffer station (40) of the spinning machine (1) which is elevated relative to the ground surface (6), wherein the riser arrangement (2; 3) has a support structure (19) which can be positioned on the ground surface (6) and which defines a positioning plane (E), characterized in that the riser arrangement (2; 3) has an upper side (43) which is available for the movement of a spinning doffer (4) which is operated without a person and which is arranged on the support structure (19), which upper side has two outer movement faces (20, 21) which are spaced apart from one another and at least one inner movement face (22, 23) between the outer movement faces, wherein the inclination of the at least one inner movement face (22, 23) is at least locally greater than the inclination of each outer movement face (20, 21) in the riser longitudinal direction (X), wherein the riser arrangement (2; 3) has three riser sections (24, 25, 26), namely a lower riser section (24), a middle riser section (25) and an upper riser section (26), in the riser longitudinal direction (X), and wherein the angle of inclination between the at least one inner movement face (22, 23) of the middle riser section (25) and the positioning plane (E) is greater than the angle of inclination between each outer movement face (20, 21) of the middle riser section (25) and the positioning plane (E).

[0042] 2. Riser arrangement (2; 3) according to embodiment 1, characterized in that the angle of inclination between the at least one inner movement face (22, 23) of the lower riser section (24) and the positioning plane (E) is equal to zero degrees and the angle of inclination between each outer movement face (20, 21) of the lower riser section (24) and the positioning plane (E) is greater than zero degrees.

[0043] 3. Riser arrangement (2; 3) according to embodiment 1, characterized in that the inclination of the at least one inner movement face (22, 23) of the middle riser section (25) is constant.

[0044] 4. Riser arrangement (2; 3) according to embodiment 1, characterized in that the at least one inner movement face (22, 23) of the middle riser section (25) has a curved course.

[0045] 5. Riser arrangement (2; 3) according to embodiment 1, characterized in that the angle of inclination between the at least one inner movement face (22, 23) of the upper riser section (26) and the positioning plane (E) is smaller than the angle of inclination of the outer movement faces (20, 21) of the upper riser section (26).

[0046] 6. The ramp device (2; 3) according to embodiment 4, characterized in that the angle of inclination between the at least one inner running surface (22, 23) of the upper ramp section (26) and the lying plane (E) is smaller than the angle of inclination of the outer running surfaces (20, 21) of the upper ramp section (26).

[0047] 7. The ramp device (2; 3) according to embodiment 5, characterized in that the angle of inclination of the at least one inner running surface (22, 23) of the upper ramp section (26) is zero degrees.

[0048] 8. The ramp device (2; 3) according to embodiment 1, characterized in that the slope of the outer running surfaces (20, 21) of the upper ramp section (26) is identical over the ramp sections (24, 25, 26).

[0049] 9. The ramp device (2; 3) according to embodiment 7, characterized in that the slope of the outer running surfaces (20, 21) of the upper ramp section (26) is identical over the ramp sections (24, 25, 26).

[0050] 10. The ramp device (2; 3) according to any one of embodiments 1 to 7, characterized in that the outer running surfaces (20, 21) have a curved course over the ramp sections (24, 25, 26).

[0051] 11. The ramp device (2; 3) according to embodiment 1, characterized in that the ramp device (2; 3) has a guide element (16; 17) for contactless guiding of a spindleless transported spinning bobbin (4) in the ramp longitudinal direction (X) past the ramp device (2; 3).

[0052] 12. The ramp device (2; 3) according to embodiment 10, characterized in that the ramp device (2; 3) has a guide element (16; 17) for contactless guiding of a spindleless transported spinning bobbin (4) in the ramp longitudinal direction (X) past the ramp device (2; 3).

[0053] 13. Spinning machine (1) which can be placed on a ground surface (6), wherein the spinning machine (1) has a bobbin placement position (40) which is elevated relative to the ground surface (6) and at least one ramp device (2, 3), characterized in that the ramp device (2, 3) is a ramp device (2, 3) according to any one of embodiments 1 to 12.

[0054] 14. The spinning machine (1) according to embodiment 13, characterized in that the spinning machine (1) has two of the ramp devices (2, 3), wherein a first of the two ramp devices (2) serves as an entry ramp and a second of the two ramp devices (3) serves as an exit ramp.

[0055] 15. The spinning machine (1) according to embodiment 13 or 14, characterized in that the spinning machine (1) has a guiding device (15) for non-contactly guiding the unmanned transported spinning sliver (4) through the at least one ramp device (2, 3) to the raised sliver placement position (40).

[0056] 16. The spinning machine (1) according to embodiment 15, characterized in that the guiding device (15) includes an RFID tag (42) arranged on the sliver can placement position (40). Detailed Implementation

[0057] exist Figure 1 The diagram shows a spinning machine 1 according to one embodiment of the invention, which has two ramp devices 2 and 3 according to the invention. With the aid of the ramp devices 2 and 3, the unmanned transport of the yarn sliver can 4 can overcome the height difference 5 between the ground 6 on which the spinning machine 1 stands and the raised can sliver placement position 40 of the spinning machine 1. For example, Figure 1 The left ramp device 2 can be used as an entry ramp, and the right ramp device 3 can be used as an exit ramp. The spinning machine 1 may also have only one of the two ramp devices, which can be used as both an entry ramp and an exit ramp.

[0058] The spinning machine 1 has a movable base plate 7, the upper side of which is raised by a height difference 5 relative to the ground 6 and includes a sliver can placement position 40. A sliver can turntable 13 is mounted here on the base plate 7, defining the sliver can placement position 40 of the spinning sliver can 4, which may also be referred to here as the filling position. Above the sliver can turntable 13, the spinning machine 1 has a coiling disc device 14 to fill the sliver can 4 with fiber sliver for unmanned transport. In order to guide the unmanned transport sliver can 4 to and from the sliver can turntable 13, the spinning machine 1 may have a guiding device 15 for non-contact guiding of the unmanned transport sliver can 4. The guiding device 15 includes, for example, magnetic strips 16, 17, and 18, which are arranged on the two ramp devices 2 and 3 and the base plate 7. Furthermore, the guiding device 15 may have an RFID tag 42 arranged on the sliver turntable 13, through which the unmanned transported spinning sliver 4 can be registered upon arrival at the sliver turntable 13. With the aid of the guiding device 15, the unmanned transported spinning sliver 4 moves, for example, unmanned upwards to the ramp device 2 on the left (serving as an entry ramp), moves onto the sliver turntable 13 on the base plate 7, and then returns downwards to the ground 6, such as the factory floor, via the ramp device 3 on the right (serving as an exit ramp).

[0059] Figure 8A bottom view of a spinning can 4 is shown in Fig. 1, which illustrates an exemplary design of an unmanned transportable spinning can 4. Such an unmanned transportable spinning can 4 is described in the applicant's German patent application of May 10, 2022, which has not been published at the time of the present application, application number 10 2022 111 675.1, which is hereby incorporated by reference in its entirety. According to the Figure 8 The unmanned transportable spinning can 4 has a movement mechanism 8 with two electric motor-driven fixed wheels 9, 10 and two support wheels 11, 12 that are freely pivotable about a movement longitudinal axis. The movement mechanism 8 is designed as a four-wheeled and has a total of four movement tracks due to the staggered arrangement of the running wheels 9, 10, 11, 12 in the movement transverse direction. It goes without saying that the unmanned transportable spinning can 3 can also have a movement mechanism 8 of a different design, for example with three movement tracks or designed as a three-wheeled.

[0060] The ramp device 2, 3 is constructed identically. In the following, the construction of the ramp device 2, 3 is explained exemplarily with regard to the ramp device 2, wherein the embodiments apply equally to the ramp device 3. Figures 2 to 6 The construction of the ramp device 2, 3 is explained exemplarily with regard to the ramp device 2, wherein the embodiments apply equally to the ramp device 3.

[0061] The ramp device 2 extends along a ramp longitudinal direction X, a ramp transverse direction Y and a ramp height direction Z. The ramp device 2 has a support structure 19 that can be placed on the ground 6 and defines a placement plane E. In the shown placed state, the ramp device 2 is supported on the ground 6, so that the placement plane E is oriented parallel to the ground 6. Figure 1 The ramp device 2 extends along a ramp longitudinal direction X, a ramp transverse direction Y and a ramp height direction Z. The ramp device 2 has a support structure 19 that can be placed on the ground 6 and defines a placement plane E. In the shown placed state, the ramp device 2 is supported on the ground 6, so that the placement plane E is oriented parallel to the ground 6.

[0062] On the side of the support structure 19 facing away from the placement plane E, two outer movement faces 20, 21 and two inner movement faces 22, 23 therebetween are arranged on a movement available surface 43 of the ramp device 2. In the shown placed state, the movement available surface 43 is oriented parallel to the ground 6. Figure 8 In the exemplary shown embodiment of the unmanned transportable spinning can 4, the spinning can moves with the two fixed wheels 9, 10 onto the two outer movement faces 20, 21 and with the two support wheels 11, 12 onto the two inner movement faces 22, 23 when moving on the ramp device 2. The magnetic strip 16 extends parallel to the ramp longitudinal direction X and is arranged between the two inner movement faces 22, 23.

[0063] The ramp device 2 has a connection section 27 for connecting the ramp device 2 with the spinning machine 1, for example the frame or the base plate 7. The movement faces 20, 21, 22, 23 are oriented parallel to the base plate 7 or parallel to the placement plane E in the connection section 27. The connection section 27 can for example be placed on the base plate 7 as shown in Fig. 1, or flush with the base plate 7, inserted into a recess of the base plate 7, etc. Figure 1

[0064] ​Furthermore, the ramp arrangement 2 has three ramp sections along the ramp longitudinal direction X, in which the upper side 43 available for movement is at least in certain regions inclined. The ramp sections include a lower ramp section 24, a middle ramp section 25 and an upper ramp section 26. The upper ramp section 26 directly adjoins the connecting section 27. The middle ramp section 25, as shown here, can be the longest of the three ramp sections 24, 25, 26.

[0065] The outer movement surfaces 20, 21 have a constant inclination over the three ramp sections 24, 25, 26, as can be seen in particular in the schematic view according to Figure 6 The inclination angle 28 determining the inclination between each outer movement surface 20, 21 and the lying plane E is for example 2.5 degrees. Greater or smaller inclination angles 28 are likewise possible, in principle can lie in the range from 0.5 degrees to 7 degrees and are preferably at most 5 degrees. It is however also possible in principle that the outer movement surfaces 20, 21 have a curved course over the ramp sections 24, 25, 26. The outer movement surfaces can for example have an S-shaped curved course, as shown in the schematic view according to Figure 7

[0066] The upper side 43 of the lower ramp section 24 is left free (here in order to save weight), so that in the installed state of the ramp arrangement 2 the inner movement surfaces 22, 23 are formed by or replaced by the ground 6 in the movement surface section 48. It is possible in principle and is often advantageous in order to simplify assembly that the upper side 43 also covers the movement surface section 48 and forms the inner movement surface of the lower ramp section 24 accordingly. Both possibilities mean that the inner movement surface of the lower ramp section 23 is oriented horizontally and accordingly not inclined.

[0067] It can be clearly seen in particular in Figure 2 and Figure 6 that the inclination of the inner movement surfaces 22, 23 begins only from a starting line 45, which is displaced in the ramp longitudinal direction X relative to the starting line 44 at which the outer movement surfaces 45 have already begun to be inclined. It is advantageous if the distance between the two starting lines 44, 45, i.e. the length of the lower ramp section 24, corresponds at least approximately to the distance 41 between the front support wheel 11 and the rotational axes of the two fixed wheels 9, 10 (see Figure 8 ). In this way, the unattended transported spinning cans 4 are only turned into the slope of the inner movement surfaces 22, 23 of the middle ramp section 25 with the support wheels 11, 12 when the fixed wheels 9, 10 reach the inclined lower ramp section 24.

[0068] The inner movement surfaces 22, 23 have a constant inclination in the middle ramp section 25, as can be seen in particular in the schematic view according to Figure 6 ​as can be seen in the schematic drawing. The inclination angle 29 of the determined slope between each inner running surface 22, 23 and the lying plane E is for example 3.5 degrees. Greater or smaller inclination angles 29 are likewise possible, in principle can lie in the range of 0.5 degrees to 7 degrees and are preferably at most 6 degrees. Here, it is preferred that the inclination angle 29 of the inner running surfaces 22, 23 is always greater than the inclination angle 28 of the outer running surfaces 20, 21. However, it is also possible in principle that the inner running surfaces 22, 23 have a curved course in the middle ramp section 25. The outer running surfaces can for example have an S-shaped curved course, as is shown in the schematic drawing according to Figure 7

[0069] In the upper ramp section 26, the inner running surfaces 22, 23 have a slope of zero degrees, which means that the inner running surfaces 22, 23 extend parallel to the lying plane E and, in the lying state shown here, also parallel to the floor 7. The inner running surfaces 22, 23 thus transition flat into the connecting section 27. By this, the inner running surfaces 22, 23 have reached the final height at the end line 46 in order to be able to eliminate the height difference 5.

[0070] The outer running surfaces 20, 21 are still inclined up to the connecting section 27 and transition into a horizontally oriented orientation only at the end line 47, which is offset with respect to the end line 46. In the connecting section 27, the inner running surfaces 22, 23 and the outer running surfaces 20, 21 lie in a height plane H, which is oriented parallel to the lying plane E.

[0071] Instead of an angular transition between the ramp sections 24, 25, 26, the floor 6 or the connecting section 27, a round transition can also be provided.

[0072] Between the inner running surfaces 22, 23, a trough-like recess is configured, here for example by means of a U-profile 30 attached from below. The word 16 is placed in the recess. The magnetic strip 18 arranged on the floor 7 of the spinning machine 1 can likewise be placed in a similarly configured recess or stuck to the floor 7.

[0073] Furthermore, it can be seen in Figure 5 that the ramp device 2 can be made of a plurality of individual ramp components 31, 32, 33. Figure 5 The left-hand ramp component 31 shown in comprises the left outer running surface 20, which is supported on the side plates 34, 35 of the bracket structure 19. The middle ramp component 32 comprises the two inner running surfaces 22, 23, which are connected to one another by means of the U-profile 30 and are supported on the side plates 36, 37 of the bracket structure 19. The right-hand ramp component 33 comprises the right outer running surface 21, which is supported on the side plates 38, 39 of the bracket structure 19. The ramp components 31, 32, 33 can be firmly connected to one another, for example screwed, riveted, welded, etc.

[0074] ​List of reference signs

[0075] 1 Spinning machine 45 Starting line

[0076] 2 Ramping device 46 End line

[0077] 3 Ramping device 47 End line

[0078] 4 Spinning can 48 Moving road section

[0079] 5 Height difference

[0080] 6 Ground

[0081] 7 Base plate

[0082] 8 Moving mechanism

[0083] 9 Fixed wheel

[0084] 10 Fixed wheel

[0085] 11 Support wheel E Laying plane

[0086] 12 Support wheel H Height plane

[0087] 13 Can turret X Ramping longitudinal direction

[0088] 14 Ringing device Y Ramping transverse direction

[0089] 15 Guiding device Z Ramping height direction

[0090] 16 Magnetic strip

[0091] 17 Magnetic strip

[0092] 18 Magnetic strip

[0093] 19 Bracket structure

[0094] 20 Moving surface

[0095] 21 Moving surface

[0096] 22 Moving surface

[0097] 23 Moving surface

[0098] 24 Ramping section

[0099] 25 Ramping section

[0100] 26 Ramping section

[0101] 27 Connecting section

[0102] 28 Inclination angle

[0103] 29 angle of inclination

[0104] 30 groove or U-profile

[0105] 31 ramp part

[0106] 32 ramp part

[0107] 33 ramp part

[0108] 34 side panel

[0109] 35 side panel

[0110] 36 side panel

[0111] 37 side panel

[0112] 38 side panel

[0113] 39 side panel

[0114] 40 strip barrel seating position

[0115] 41 distance

[0116] 42 RFID tag

[0117] 43 upper side

[0118] 44 starting line

Claims

1. Ramped arrangement for a spinning machine (1) that can be positioned on a ground surface (6) for overcoming a height difference (5) between the ground surface (6) and a doffer placement position (40) of the spinning machine (1) that is elevated relative to the ground surface (6), wherein The ramp device has a support structure (19) which can be placed on the ground (6) and which defines a lying plane (E), characterized in that the ramp device has an upper side (43) which is available for the movement of the unmanned transport of the spinning cans (4) and which is arranged on the support structure (19) and which has two outer movement faces which are spaced apart from one another and at least one inner movement face between the outer movement faces, wherein the inclination of the at least one inner movement face is at least locally greater than the inclination of the outer movement faces in the ramp longitudinal direction (X), and wherein the ramp device has three ramp sections in the ramp longitudinal direction (X), namely a lower ramp section (24), a middle ramp section (25) and an upper ramp section (26), wherein the angle of inclination between the at least one inner movement face of the middle ramp section (25) and the lying plane (E) is greater than the angle of inclination between the outer movement faces of the middle ramp section (25) and the lying plane (E).

2. The ramp device of claim 1, wherein, The angle of inclination between the at least one inner movement face of the lower ramp section (24) and the lying plane (E) is equal to zero degrees, and the angle of inclination between the outer movement faces of the lower ramp section (24) and the lying plane (E) is greater than zero degrees.

3. The ramp device of claim 1, wherein, The inclination of the at least one inner movement face of the middle ramp section (25) is constant.

4. The ramp device of claim 1, wherein, The at least one inner movement face of the middle ramp section (25) has a curved course.

5. The ramp device of claim 1, wherein, The angle of inclination between the at least one inner movement face of the upper ramp section (26) and the lying plane (E) is less than the angle of inclination of the outer movement faces of the upper ramp section (26).

6. The ramp device of claim 4, wherein, The angle of inclination between the at least one inner movement face of the upper ramp section (26) and the lying plane (E) is less than the angle of inclination of the outer movement faces of the upper ramp section (26).

7. The ramp device of claim 5, wherein, The angle of inclination of the at least one inner movement face of the upper ramp section (26) is zero degrees.

8. The ramp device of claim 1, wherein, The inclination of the outer movement faces of the upper ramp section (26) is the same over the ramp section.

9. The ramp device of claim 7, wherein, The inclination of the outer movement faces of the upper ramp section (26) is the same over the ramp section.

10. A ramp device according to any one of claims 1 to 7, wherein, The outer movement faces have a curved course over the ramp section.

11. The ramp device of claim 1, wherein, The ramp device has a guide element for contactless guiding of the unmanned transport of the spinning cans (4) over the ramp device in the ramp longitudinal direction (X).

12. The ramp device of claim 10, wherein, The ramp device has a guide element for contactless guiding of the unmanned transport of the spinning cans (4) over the ramp device in the ramp longitudinal direction (X).

13. Spinning machine (1), which can be placed on a ground surface (6), wherein The spinning machine (1) has a can deposit position (40) which is elevated relative to the ground (6) and at least one ramp device, characterized in that the ramp device is a ramp device according to any one of claims 1 to 12.

14. Spinning machine (1) according to claim 13, characterized in that The spinning machine (1) has two ramp devices, wherein a first ramp device (2) of the two ramp devices serves as an entry ramp and a second ramp device (3) of the two ramp devices serves as an exit ramp.

15. Spinning machine (1) according to claim 13 or 14, characterized in that The spinning machine (1) has a guide device (15) for contactless guiding of the unmanned transport of the spinning cans (4) over the at least one ramp device up to the elevated can deposit position (40).

16. Spinning machine (1) according to claim 15, characterized in that The guide device (15) comprises an RFID tag (42) which is arranged on the can deposit position (40).

Images