Movable inertia guiding device and movable structural element for loading a wire package on a bobbin and assembly of a bobbin

Abstract

An assembly formed by a drum holder and a movable device, in particular of the inertial guide type and suitable for cooperating with a drum holder supporting a plurality of bobbins, each comprising a tube wound with a thread or yarn, each of said bobbins being supported by a respective pin associated with an upright of a frame of the drum holder, said frame being able to rotate around a central upright in a lockable manner via a locking element, each pin being able to assume a first operating position facing the inside of said frame and a second operating position facing the outside of said frame, said movable device comprising a frame having opposite ends and a flat portion carrying a carriage having a plurality of pivots supporting bobbins wound with a thread; said frame supporting a movable structure to rotate each pin between the first operating position and the second operating position and to remove the tubes from each pin on which the bobbins wound with thread have been exhausted and to load the bobbins wound with yarn removed from said carriage on said pins.

Description

Technical Field

[0001] The present invention relates to an inertial-guided movable device and an assembly of a bobbin, the assembly of which is adapted to realize loading / unloading of yarn spools from the bobbin, and the bobbin being adapted to support wound yarn spools to be supplied to a textile machine such as a warping machine or an ironing texturer. Background Technology

[0002] It is known that in textile mills, which include machines that operate on yarn and thread in a substantially continuous manner, the yarn and thread are wound on spools supported by crenellations placed close to each textile machine (e.g., a warping or shaping machine). For continuous yarn feeding, the yarn wound on the spools includes an end portion that connects to the "head" of the yarn supported by an adjacent spool. In this way, all the yarn supported by the individual spools (potentially dozens) in the crenellation are connected to each other in an end-to-end configuration (spools connected in pairs). The crenellation is typically a tower, preferably a rotating tower, i.e., a tower that rotates about a vertical axis, comprising a (rotating) structural member with multiple uprights, each upright having multiple pins on which corresponding spools are placed, the yarn of which is connected end-to-end as described.

[0003] Each pin can also rotate autonomously about the axis of the upright in a lockable / lockable manner, allowing the pin to be pulled out of the structure itself whenever the spool supported by the pin unwinds, leaving only the paper weft tube for winding the thread. This is done manually by the operator, who, after stopping rotation and rotating the pin, removes the empty weft tube and loads a new spool onto the pin. The operator then rotates the pin again toward the inside of the bobbin and performs the usual knotting operation to ensure that the thread fed into the machine unwinds correctly.

[0004] These operations are performed on multiple pins on the spool, making them time-consuming and costly, not to mention the physical exertion due to the weight of the entire spool.

[0005] In industrial sectors, including the textile industry, it is also known to use inertial guided vehicles to perform a variety of operations in place of manual labor.

[0006] It is known that an inertial guided vehicle is a vehicle that moves freely in a certain space and is controlled by GPS and a remote control unit, wherein the room in which the vehicle moves is mapped and connected to the vehicle via a Wi-Fi network.

[0007] In particular, inertial guidance devices are known for moving a holding frame of a wound wire spool after it has been picked up from the winding machine. However, such devices are only used as trolleys to move frames holding multiple spools. Summary of the Invention

[0008] The object of the present invention is to provide an assembly consisting of a spool and an inertial-guided movable device or vehicle, which is suitable for performing disassembly operations on unwound spools of wire and loading operations on wound spools of wire on the spool, thereby preventing manual operation of such operations.

[0009] Another objective is to provide a component in which the aforementioned device is capable of reliably and safely unloading an empty spool weft tube and reliably and safely loading a spool wound with wire from a spool of the aforementioned type.

[0010] Another objective is to provide components of the type described above, wherein the device can quickly perform the aforementioned operations.

[0011] A further objective is to provide a component of the type described above, wherein the device can be suitably positioned in front of the pins of each bobbin so as to remove the weft tube and load the spool without hitting the bobbin, damaging the bobbin or its pins, and interfering with any pins not involved in the spool loading and unloading operation.

[0012] These objectives and other objectives, which will be more apparent to those skilled in the art, are achieved by an assembly formed of an inertial-guided movable device and a frame according to various aspects of this application. Attached Figure Description

[0013] To better understand the present invention, the following figures are provided for illustrative rather than limiting purposes, in which:

[0014] Figure 1 A perspective view of a movable device near the cylinder frame is shown, which, together with the cylinder frame, forms an assembly according to the invention;

[0015] Figure 2 It shows from Figure 1 A three-dimensional view of the component viewed from the other side;

[0016] Figure 3 It shows Figure 1 A three-dimensional view of a portion of the component shown;

[0017] Figure 4 This shows the process from during the operation steps. Figure 3 A three-dimensional view of a part of a component viewed from the other side;

[0018] Figure 5 This shows the process in another step from Figure 3 A three-dimensional view of a portion viewed from the other side;

[0019] Figure 6 This is shown in another operational step. Figure 3A partial 3D image;

[0020] Figure 7 This is shown in another operational step. Figure 3 A three-dimensional view of a portion of the component shown;

[0021] Figure 8 This is shown in another operational step. Figure 3 A three-dimensional view of a portion of the components; and

[0022] Figure 9 It shows Figure 1 A side-view perspective of another part of the component. Detailed Implementation

[0023] Referring to the accompanying drawings, a movable device forming part of an assembly according to the invention is generally indicated by reference numeral 1. This movable device is an inertial guidance device and includes a frame 2 capable of moving along a controlled path on wheels (not shown) within a textile mill (not shown) and adapted to support a frame 3 including a plurality of pivots 4 adapted to support spools 5 wound with yarn for guiding these spools onto support elements or pins 6 of a bobbin 7 having a plurality of upright portions 8 supporting the pins 6.

[0024] Each pin 6 supports a corresponding spool 5 containing yarn wound on a weft tube 10. An upright portion 8 is associated with a frame 11, which rotates about a central upright portion 12 in a manner known per se; each pin 6 is also capable of rotating about its own upright portion (as described below) to allow the pin to be positioned in two distinct operating positions: in a first operating position, the pin 6 faces the inside of the frame 11, i.e., the inside of the bobbin, and in this case, the spool carried by such a pin can release the yarn to the textile machine for processing. It should be noted that the yarn or thread of the spool 5 of the bobbin is connected to each other in an end-to-end configuration, thereby enabling continuous operation of the textile machine.

[0025] In the second operating position, each pin 6 faces outward from the bobbin; this position is taken whenever the yarn of the spool 5 corresponding to pin 6 ends, with only its weft tube 10 remaining on the pin. The second operating position allows the weft tube 10 to be removed from the pin and allows a new wound spool to be inserted into the same pin. After this operation, the pin is moved to its first operating position, connecting the head of the yarn of its spool to the tail of the yarn of the adjacent spool.

[0026] The movable device 1 is adapted to automatically unload the weft tube 10 of the exhausted spool and load the wound spool 5 onto its corresponding pin. Specifically, the movable device 1 is preset to autonomously reach the spool 7, rotate the pin 6 with the exhausted spool, unload the weft tube 10, load the wound spool, and return the pin to its first operating position.

[0027] More specifically, the frame 2 of the movable device 1 includes a first end 15 and a second end 16 opposite to the first end. A frame 3 is located at the first end 15, which includes a frame 20 supporting a pivot 4. A structural member 21 is located at the second end, which includes a power supply unit for supplying power to the movable device 1 and the main circuit / electronic circuitry of the movable device 1.

[0028] The support column 22 stands vertically from the flat portion 23 of the frame 3 between and close to the structural member, and includes a movable structural member 24 that is movable along the support column 22 by an electric motor 25, adapted to pick up each weft tube 10 from each pin 6, adapted to place the weft tube in the pivot 4 of the frame, pick up the spool 5 wound with thread or yarn, and insert the spool into the pin 6. All of the above is performed automatically and in a controlled manner.

[0029] The movable structure 24 is robotic, and specifically, the type of movable structure 24 is known to be SCARA type. This structure comprises multiple independent and continuous arms 28, 29, and 30, which are interconnected via pivots on which independent electric motors 31, 32, and 33 are mounted, allowing autonomous movement of each arm 28, 29, and 30. The first arm 28 is then hinged (via motor 31, which operates as a pivot) to a fixed arm 35, which is integral with a bracket 36 directly associated with and slides along a support column 22 (via electric motor 25).

[0030] Each electric motor 25, 31 to 33 is provided with an output shaft (not shown), which cooperates with a control member, such as an encoder, to control the rotation of the output shaft. The control member is adapted to enable the control unit (not shown) of the movable device 1 to know the position of the shaft at any time, and thus the position of the movable arm connected to the shaft.

[0031] The control unit is also remotely controlled to enable the movable device 1 as a whole, as well as each of its individual parts, such as the movable structural member 24, to have the desired movement.

[0032] It should be noted that the last arm 33 of the movable structure 24 includes a forked end section 40 (with parallel arms 40A and 40B) and a hole for receiving a second pivot 41—which is integral with the body 42 carrying the corresponding pin 6—so that the pivot can be rotated on its corresponding upright portion 8 and the pin can be moved from a first operating position to a second operating position.

[0033] Each pin 6 is also preferably forked with parallel arms 6A and 6B so that arms 40A and 40B of the segment 40 on the arm 33 can be introduced therein, thereby from the pin (see Figure 5 Remove the weft tube 10 and load the spool of yarn wound on the pin (see) Figure 7 ).

[0034] It should be noted that the frame 3 includes a pivot 4 that initially does not carry any spool 5, such that the pivot 4 can receive the first weft tube 10 removed from the bobbin before the first spool is removed from the frame, so that the first spool can be inserted into the corresponding pin 6 after the weft tube is removed.

[0035] It should also be noted that each body 42 is rotatably mounted on its respective upright portion 8 in any way, and preferably in such a way that it is locked in the operating position of the corresponding pin without any possibility of unwanted rotation.

[0036] Finally, the movable device 1 includes a movable member 50, preferably U-shaped, adapted to engage with a rod 51 associated with the frame 11 and to lock / unlock the frame's rotation about the central upright 12. This movable member is associated with a shaft 53 and is positioned on one side of the surface of the frame 2, which is driven to rotate by its corresponding electric motor 55.

[0037] The invention operates as follows: a movable device 1 equipped with a rack 3 loads a coil through a known system and procedure, runs in front of the rack, and in particular, the movable device 1 moves between racks 7 that are usually arranged in a way that forms a corridor (where the movable device 1 passes).

[0038] This device stops after it has been detected by the factory's monitoring and surveillance system or by sensors mounted on vehicle 1 that it has reached the spool to be loaded, and the fork-shaped section 40 of arm 33 positions itself at the desired height and surrounds the second pivot 41 corresponding to the pin 6 where the spool is depleted (see...). Figure 4 Then, the movable component 50 presses down on the rod 51 of the cylinder frame to release the frame 11. Figure 9 ).

[0039] Then, the arms 28, 29, 30 of the movable structural member (e.g., the SCARA structural member) 24 are moved appropriately (by their respective motors) to rotate the second pivot 41, the body 42 and its corresponding pin 6 toward the second operating position of the pin.

[0040] Then the forked section 40 is placed on the pin 6, and the movable structural member 24 is moved toward the tube frame. Similarly, due to the movement of the bracket 36 along the support post 22, the weft tube 10 is lifted from the pin 6 and pulled out of the pin 6. Figure 5 Due to the further movement of this structural component, the weft tube 10 is inserted into the pivot 4 of the frame 3. Figure 6 ), and the wound spool 5 is picked up and transferred to the spool 8 ( Figure 7 ), and load it onto the empty pin 6. Then rotate the pin to its first operating position.

[0041] Thanks to this invention, all these operations can be performed automatically, which saves a significant amount of time and cost, and reduces physical exertion because no human operator is required to perform the operations.

[0042] It goes without saying that other practical solutions can be envisioned as alternatives to the solutions described above. For example, the movable structural member 24 could be implemented in another way with one or more arms suitable for performing even more complex movements on multiple axes in space. These solutions are also considered to fall within the scope of the appended claims.

Claims

1. An assembly of a bobbin and a movable device (1), the movable device being inertial-guided and adapted to cooperate with a bobbin (7), the bobbin supporting a plurality of spools (5), each spool including a weft tube (10) on which thread or yarn is wound, each spool (5) being supported by a corresponding pin (6), the pin being carried by an upright portion (8) of a frame (11) of the bobbin, the frame (11) being rotatable about a central upright portion (12) via a rod (51), each pin being rotatable to take a first operating position facing the inside of the frame of the bobbin and a second operating position facing the outside of the frame (11), the movable device (1) comprising a frame (2) having a first end (15) and a second end (16) opposite to the first end and a flat portion (23) of a support frame (3), the support frame having a plurality of pivots (4) supporting spools (5) wound with thread, characterized in that, The frame of the movable device supports a movable structural member (24) to allow each pin (6) to rotate between a first operating position and a second operating position, and to allow the weft tube (10) to be removed from each pin where the yarn spool is exhausted, and to load the yarn spool (5) wound with yarn removed from the frame (3) onto the pin. The movable structural member (24) includes at least one robotic arm having an end segment (40). The end section is adapted to engage with each pin (6) of the bobbin (7) to remove the weft tube (10) of the exhausted spool, load the weft tube onto the pivot (4) of the frame (3), and load the spool (5) with yarn wound onto the pin (6). The end section (40) is adapted to engage with a second pivot (41) functionally associated with the pin (6), thereby enabling the pin (6) to rotate about the corresponding upright portion of the pin. The end section (40) is forked and includes two parallel arms (40A, 40B).

2. The assembly of claim 1, wherein, Each pin (6) is forked and includes two parallel arms (6A, 6B).

3. The assembly of claim 1, wherein, The pin (6) and the second pivot (41) are supported by a body (42), which is rotatably associated with a corresponding upright portion (8) of the body (42).

4. The assembly of claim 1, wherein, The movable structural member (24) is a SCARA-type structural member comprising multiple arms (28, 29, 30) which are interconnected by pivots on which electric motors (31, 32, 33) are placed. The first arm (28) of the arm is hinged to a fixed arm (35) which is integral with a bracket (36). The bracket is driven by an electric motor (25) along a support (22) provided by the frame (2) of the movable device in front of the frame (3).

5. The assembly of claim 4, wherein, The component includes a control element functionally associated with each electric motor (25, 31, 32, 33), the control element being adapted to control the movement of each movable arm (28, 29, 30) of the movable structure (24).

6. The assembly of claim 1, wherein, The component includes a movable member (50) adapted to engage with a rod (51) that enables the frame (11) of the tube frame to stop rotating about the central upright (12) of the tube frame (7).

7. The assembly of claim 6, wherein, The component includes a control unit, which is then remotely inspected and remotely controlled, the control unit being adapted to inspect and control the movement of each of the movable device (1) and the movable structural member (24) and the movable component (50) of the movable device.

8. The assembly of any one of claims 1 to 5, wherein, The component includes at least one of the following features: - At least one of the pivots (4) of the frame (3) is not on which a spool (5) is placed, and the frame (3) is adapted to receive a weft tube (10) removed from the bobbin (7). - A movable member (50) adapted to cooperate with the rod (51) which is capable of stopping the rotation of the frame (11) of the tube frame (7), the movable member (50) being U-shaped and connected to a shaft (53) driven by an electric motor (55), the movable member (50) protruding laterally from the frame (2) of the movable device (1); - The frame (2) of the movable device includes a flat portion (23) disposed between the first end (15) and the second end (16), the frame (3) is disposed at the first end (15), and the movable structural member (24) is present at the second end; - The frame (2) of the movable device carries a supporting structure (21), the structure (21) including a power supply circuit for supplying power to the movable device (1) and a main circuit / electronic circuit for the movable device.

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