winding machine

Abstract

The invention relates to a winding machine for winding a yarn sheet into multiple bobbins. The winding machine has two projecting winding spindles mounted on a winding turret. The winding turret is rotatably mounted in a machine frame and holds the spindle motors assigned to the winding spindles on a rear side of the machine frame. A pressure roller and a traversing device are mounted on a cross member projecting parallel to the winding spindles. Drive electronics and control electronics are assigned to the drives. To ensure compact and flexible use of the winding machine in melt spinning systems, the drive electronics and control electronics are each arranged separately in a subdivided electrical box mounted on the rear side of the machine frame directly above the projecting spindle motors.

Description

[0001] The invention relates to a winding machine for winding a yarn sheet into several bobbins according to the preamble of claim 1.

[0002] When manufacturing synthetic yarns in melt spinning plants, it is common practice for the yarns to be wound into bobbins at the end of the process. Winding machines are used for this purpose, continuously winding the yarn sheet from a spinning position into bobbins. Thus, it is common for melt spinning plants of this type to have a large number of winding machines arranged side by side along a machine's long side. For maintenance purposes or replacement, the winding machines must be removed from their respective spinning positions and transported away. Especially when equipping existing spinning positions with winding machines, the installation conditions and, in particular, the machine depths for the winding machine to accommodate the yarn sheet must be taken into account.The machine depth of a winding machine is essentially determined by the connection of the electrical units required to supply the drives and to control the drives.

[0003] For example, EP 0 845 432 A1 discloses a winding machine in which the electronics unit is mounted directly on a crossbeam above the winding spindles. This allows for a relatively short machine depth. However, today's melt spinning systems increasingly use winding machines with integrated treatment devices on the crossbeam, which would no longer guarantee free access to the electronics unit on the crossbeam.

[0004] In the prior art, it is therefore common practice to locate the electronics unit in a separate control cabinet, which is mounted separately on one side of the motor of the winding machine. Such a winding machine is described, for example, in DE 10 2011 014 647 A1.

[0005] Such winding machines therefore inevitably require a greater machine depth when used in a spinning position of a melt spinning plant.

[0006] JP H08-289591 A discloses an electrical box for improving drive control unity and control accuracy. The controllers for controlling the inverters provided opposite a plurality of drive motors are integrated into a housing, and a common memory is used as an interface through which the inverters and the controllers are connected.

[0007] JP H06 - 247 627 A discloses an electrical box with which it is possible to provide a winder with short cables connecting a control box and drive motors, thereby causing no malfunctions and reducing the size of the control box.

[0008] Safe and clear access to certain controls is not possible with either JP H08 - 289 591 A or JP H06 - 247 627 A, as all components are housed in an electrical box.

[0009] It is now an object of the invention to provide a winding machine of the generic type which is particularly suitable for integration into existing spinning positions of melt spinning systems and enables secure access to each control.

[0010] A further aim of the invention is to provide a winding machine of the generic type which particularly enables the realization of compact overall systems with integrated godet units.

[0011] The object is achieved according to the invention in that the drive electronics and the control electronics are arranged in an electrical box which is held on the rear side of the machine frame directly above the cantilevered spindle motors.

[0012] Advantageous further developments of the invention are defined by the features and combinations of features of the respective subclaims.

[0013] The invention offers the advantage that the machine depth remains unchanged by integrating the drive and control electronics. This allows a previously unused space on the winding machine, located at the rear of the machine frame above the spindle motors, to be used to connect the electrical box. The immediate proximity to the machine frame also enables particularly short cabling to the drives, actuators, and sensors.

[0014] In order to utilize the installation space, the electrical box preferably has a width that is essentially equal to the width of the machine frame.

[0015] For securing and simultaneously encapsulating the drives, a further development of the invention has proven successful. In this version, the electrical box is held by two support plates arranged on either side of the spindle motors. The support plates are supported by two longitudinal beams located on either side of the machine frame, ensuring secure support of the electrical box during transport of the winding machine. The spindle motors are shielded and protected on the longitudinal sides.

[0016] To ensure the power supply can be separated from the control components, the electrical box is designed to house the drive electronics and control electronics separately, with separate doors on opposite sides of the electrical box. This ensures compliance with all important regulations and standards regarding technical safety. The doors are preferably opened using a key or a tool to ensure access only for qualified personnel.

[0017] To accommodate the electrical components, the control cabinets each have their own support wall, forming a cable duct between them within the electrical box. This creates additional insulation between the drive electronics and the control electronics, while also enabling short cable runs to connections and drives in the winding machine.

[0018] To cool the electronic components, particularly the drive electronics, a heat exchanger is located on one end of the electrical box. This heat exchanger is connected to the interior of the electrical box via at least two air exchange openings. This allows for air exchange for cooling purposes. The warm air flowing from the interior of the electrical box is preferably cooled by an air-water cooler connected to an external cooling water circuit. This keeps the environment around the winding machine uncontaminated, and the heat released in the electrical box can be dissipated via the cooling water circuit.

[0019] In order to achieve the shortest possible distances between the winding machines and the melt spinning devices, the preferred embodiment of the invention is a godet support for accommodating multiple godets at the free end of the cross member. The godet support is supported by a support frame and / or the cross member. The electrical supply to the godets on the godet support is advantageously provided via the drive electronics within the electrical box. Likewise, the godets are controlled via the control electronics contained in the electrical box.

[0020] The winding machine according to the invention is explained in more detail below using some embodiments with reference to the attached figures.

[0021] They represent: Fig. 1 schematically shows a side view of a first embodiment of the winding machine according to the invention Fig. 2 schematically shows a rear view of the embodiment on Fig. 1 Fig. 3 schematically shows a plan view of the embodiment of Fig. 1 Fig. 4 schematically shows a side view of another embodiment of the winding machine according to the invention

[0022] In the Fig. 1, Fig. 2 and Fig. 3 shows a first embodiment of the winding machine according to the invention in several views. In Fig. 1 is the embodiment schematically in a side view, in Fig. 2 in a rear view and in Fig. 3 is shown in a top view. Unless explicitly referenced to one of the figures, the following description applies to all figures.

[0023] The example shows a winding machine with a total of four winding stations for winding a yarn sheet consisting of four threads, which are wound separately into four spools simultaneously. The number of winding stations, and thus the number of threads guided per yarn sheet, is essentially exemplary. Such winding machines are preferably used for winding ten, twelve, or sixteen threads.

[0024] For this purpose, the exemplary embodiment has two long, projecting winding spindles 4.1 and 4.2, which are held on a bobbin turret 3, offset by 180° from one another. The winding spindles 4.1 and 4.2 carry several winding tubes 12 on their circumference. The winding turret 3 is rotatably mounted in a machine frame 1. The winding turret 3 can be driven within the machine frame 1 by a turret motor 33, so that the winding spindles 4.1 and 4.2 can be pivoted for winding bobbins or for changing bobbins. The turret motor 33 is arranged on a rear side of the machine frame 1. Two spindle motors 5.1 and 5.2, assigned to the winding spindles 4.1 and 4.2, protrude from the rear of the machine frame 1.

[0025] In the Fig. In the operating situation shown in Figure 1, the winding spindle 4.1 is held in a winding position and the winding spindle 4.2 is held in a change position. In the winding position, the winding spindles 4.1 and 4.2 interact with a rotatably mounted pressure roller 6, which is held on a cross member 2 via a movable roller support 7. The cross member 2 is connected to the machine frame 1 in a cantilevered manner. A traversing device 8 is arranged on the cross member 2 above the pressure roller 6, which has guide means for guiding the thread 10 back and forth for each winding station. To guide the threads 10, a head thread guide 9 is provided on the cross member 2 for each winding station.

[0026] As can be seen from the illustrations in Fig. 1, Fig. 2 and Fig. As can be seen in Figure 3, an electrical box 13 is located on the rear side of the machine frame 1, directly above the spindle motors 5.1 and 5.2. The electrical box 13 is supported by two support plates 14.1 and 14.2 aligned parallel to the machine frame on the long sides. Fig. For the sake of clarity, support plate 14.1 is not shown in Figure 1. Support plates 14.1 and 14.2 thus form a shield for the electrical drives 5.1, 5.2, and 33. Support plates 14.1 and 14.2 are each supported on two parallel longitudinal beams 15.1 and 15.2, which extend the entire length of the winding machine and form several support feet for the winding machine. The electrical box 13 has a width corresponding to the width of the machine frame 1. The longitudinal extension of the electrical box 13 is essentially equal to the projecting length of the spindle motors 5.1 and 5.2 at the rear of the machine frame.

[0027] To explain the structure of the electrical box 13, particular attention is drawn to the Fig. 3, in which a cross section of the electrical box 13 is shown.

[0028] The electrical box 13 has two separate control cabinets 18 and 19. Viewed from the front of the machine frame 1, the control cabinet located on the right-hand longitudinal side of the winding machine is referred to here as the right-hand control cabinet 18. The opposite control cabinet is referred to here as the left-hand control cabinet 19. In the left-hand control cabinet 19, the components of the drive electronics 16 are held on a support wall 21.1. The electrical components of the control electronics 17 are arranged on a second support wall 21.2, which is arranged at a distance within the electrical box 13 and delimits the right-hand control cabinet 18. A cable duct 22, in which the cabling is housed, is formed between the support walls 21.1 and 21.2.

[0029] The two control cabinets 18 and 19 are each closed by opening doors 20.1 and 20.2. In this exemplary embodiment, the doors 20.1 and 20.2 are shown pivoting. However, it is also possible to completely remove such doors from the electrical box 13. Opening and closing the doors 20.1 and 20.2 is preferably done with a key or a special tool, so that only authorized personnel have access to the electrical components of the drive electronics 16 and the control electronics 17.

[0030] A heat exchanger 23 is arranged on the rear side of the electrical box 13. The heat exchanger 23 is coupled to the interior of the control cabinets 18 and 19 via several air exchange openings 24.1 and 24.2. A fan (not shown here) creates an air exchange between the electrical box 13 and the heat exchanger 23. The warm air entering the heat exchanger 23 is cooled by an air / water cooler 25. The air / water cooler 25 is connected to an external cooling water circuit (not shown here) via a cooling water connection 26.

[0031] On the rear side of the electrical box 13, several electrical connections 34.1 and 34.2 are shown as examples to enable, for example, electrical supply and data transfer.

[0032] In Fig. Figure 4 shows a schematic side view of another embodiment of the winding machine according to the invention. This embodiment is essentially identical to the aforementioned embodiment, so only the differences will be explained here, and otherwise reference is made to the aforementioned description.

[0033] In the Fig. In the embodiment of the winding machine according to the invention shown in Figure 4, a godet support 27 is arranged on an upper side at the free end of the cross member 2. The godet support 27 has several godets 28.1 and 28.2 arranged in a thread path. A preparation device 29 is arranged upstream of the first godet 28.1 on the godet support 27. An interlacing device 30 is held between the godets 28.1 and 28.2.

[0034] The drives of the godets 28.1 and 28.2 are held on a rear side of the godet carrier 27 (not shown here) and are connected via electrical lines 35 to the drive electronics 16 within the electrical box 13.

[0035] For thread guidance, the usual head thread guides on the cross member 2 are replaced by deflection rollers 31, so that the threads can be fed from a horizontal plane.

[0036] To stabilize the cross member 2, at least one support beam 32 is assigned to the cross member 2, which is supported on one of the longitudinal beams 15.1 or 15.2.

[0037] In principle, however, it is also possible for the godet support 27 to be held by a separate support frame directly above the cross member 2. The support frame is advantageously held on the longitudinal beams 15.1 and 15.2, so that the winding machine can be replaced as a single unit from one spinning position.

[0038] The winding machine according to the invention is therefore particularly suitable for integration into spinning stations with small machine depths.

Claims

[1] Winding machine for winding a strand of yarn into several bobbins, with two freely cantilevered winding spindles (4.1, 4.2) for receiving bobbin cases (12), with a winding turret (3) which is mounted in a machine frame (1) and which supports the winding spindles (4.1, 4.2), wherein the winding spindles (4.1, 4.2) are associated with two cantilevered spindle motors (5.1, 5.2) on a rear side of the machine frame (1), with a pressure roller (6) and with a changing device (8) which are together held on a crossbeam (2) connected to the machine frame (1) above the winding spindles (4.1, 4.2), and with drive electronics (16) and control electronics (17), where The drive electronics (16) and the control electronics (17) are arranged in an electrical box (13) which is held on the rear of the machine frame (1) directly above the projecting spindle motors (5.1, 5.2) and the electrical box (13) forms a left-hand control cabinet (19) and a right-hand control cabinet (18) for the separate accommodation of the drive electronics (16) and the control electronics (17), to which separate doors (20.1, 20.2) are assigned on opposite sides of the electrical box (13). [2] Winding machine according to claim 1, characterized by , that the electrical box (13) has a width that is essentially equal to the machine width of the machine frame (1). [3] Winding machine according to claim 2, characterized by , that the electrical box (13) is held by two support plates (14.1, 14.2) arranged on both sides of the spindle motors (5.1, 5.2). [4] Winding machine Claim 3, characterized by, that the machine frame (1) has two elongated longitudinal beams (15.1, 15.2) which extend over an entire long side of the machine and to which the support plates (14.1, 14.2) are held. [5] Winding machine according to claim 4, characterized by , that the switch cabinets (18, 19) each have a support wall (21.1, 21.2), wherein the support walls (21.1, 21.2) form a cable duct (22) between them inside the electrical box (13). [6] Winding machine according to any one of claims 1 to 5, characterized by , that a heat exchanger (23) is arranged on a rear side of the electrical box (13), which is connected to the interior of the electrical box (13) via at least two air exchange openings (24.1, 24.2). [7] Winding machine according to claim 6, characterized by , that the heat exchanger (23) has an air-water cooler (25) which is connected to an external cooling water circuit. [8] Winding machine according to any one of claims 1 to 7, characterized by, that at the free end of the crossbeam (2) a galette support (27) is provided for receiving several galettes (28.1, 28.2), wherein the galette support (27) is supported by a support frame (32) and / or the crossbeam (2).

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