Device for feeding cores to winding rollers for the production of a roll, e.g. on a tape winder

Abstract

Device for feeding tubes to winding rollers for producing a roll of fiber material, e.g. on a tape winder, in particular in front of a combing machine, in which empty tubes are kept in stock (storage) and a tube is inserted into the gap-shaped space formed by the lateral surfaces of the winding rollers after the roll change, wherein a device for feeding the tube from the storage is provided, characterized in that the storage (5) is arranged laterally of the winding rollers (1, 2) and in each case a tube (4; 4a to 4n) can be inserted laterally into the gap-shaped space (6) at the level of the gap-shaped space (6).

Description

[0001] The invention relates to a device for feeding tubes to winding rollers for producing a roll of fiber material, e.g. on a tape winder, in particular in front of a combing machine, in which empty tubes are kept in stock (storage) and a tube is inserted into the gap-shaped space formed by the lateral surfaces of the winding rollers after the roll change, wherein a device for feeding the tube from the storage is provided.

[0002] In combing preparation, two systems are generally used: the wad doubling process and the ribbon doubling process. In a ribbon winder, the machine forming the combing machine lap receives the feed in ribbon form from at least one section. The feed is wound into a lap on a core, with the lap resting on a pair of driven rollers. It is known to keep a certain number of empty cores in stock near the machine forming the lap, e.g., in a suitably designed accumulator. After a lap change, an empty core is inserted into the nip formed by the winding rollers.

[0003] From DE 198 46 915 A, it is known to feed the empty core to the roll nip mechanically. The device provided for this purpose is complex. A carriage movable transversely to the roll dispensing direction is assigned to the roll dispensing point, which carriage is provided with a lower receptacle for the empty cores. The receptacle for the empty cores is divided into individual receiving troughs, which are individually pivotably mounted transversely to the longitudinal axes of the placed cores. Means, e.g., pressure cylinders, are provided to transfer the cores temporarily stored on the rolls individually to the roll-forming preparation machine. The carriage with the cores is arranged in front of the winding rollers. The respective core to be fed is inserted into the roll nip in a direction transverse to the longitudinal axes of the winding rollers.As soon as the tipping trough (receiving trough) has reached a reversed inclined position, the core rolls down the inclined surface of the tipping trough due to gravity and reaches a ramp at the receiving point. Since the ramp is also inclined towards the preparation machine, the core rolls into the preparation machine, where it is gripped by a mechanism (not shown in detail), via which the core is moved to the area above the two winding rollers for further winding. The core is thus fed from below the roller gap into the roller gap. The device is complex in terms of installation. A particular drawback is the multi-link mechanisms for receiving, transporting, and feeding the empty core into the roller gap (winding position). A further disadvantage is a movement sequence that does not include any overlap between the feeding movement (of the empty winding core) and the ejection movement (of the full roll).

[0004] DE 21 34 921 A1 discloses a device for automatically feeding, separating and winding a specific length of a fiber mat, with a rotatable winding mandrel which can be axially displaced transversely to the transport plane of the fed fiber mat.

[0005] The invention is therefore based on the object of creating a device of the type described at the outset which avoids the disadvantages mentioned and which, in particular, enables a quick and safe introduction of the empty sleeve into the gap-shaped space in a structurally simple manner.

[0006] This problem is solved by the characterizing features of claim 1.

[0007] Key to the invention is a system that stores the empty winding core laterally and inserts it laterally at the end of the storage unit into the center of the winding position. This arrangement allows the winding core to be transported from the storage magazine to the insertion position using gravity (without additional mechanisms). It also creates the option of performing the feeding and ejection movements simultaneously or at optimized times. This, in turn, shortens production times. The empty core is brought into the winding position using simple movement mechanisms. Particular advantages include the simplified changing mechanism and the potential time savings when changing the reel. This, in turn, increases productivity.

[0008] Claims 2 to 26 contain advantageous developments of the invention.

[0009] The invention is explained in more detail below with reference to exemplary embodiments shown in the drawings.

[0010] It shows: Fig. 1 perspective detailed view of a tape winding device with the device according to the invention, Fig. 1a Side view in detail of a guide carriage, Fig. 2a, Fig. 2b schematic side view ( Fig. 2a) and top view ( Fig. 2b) on two winding rollers and storage units with empty tubes arranged outside, Fig. 3 the gap-shaped space formed by the outer surfaces of the winding rollers and Fig. 4a to 4c schematic side view of the discharge of the finished roll and the receiving of the empty core.

[0011] After Fig. 1, the winding device of a tape winder comprises two rotating winding rollers 1, 2, above which the roll 3 is formed. Fiber tapes (not shown) are wound onto a core 4 (see Fig. 2b) is wound up, to each of whose two end faces a side plate 10a or 10b is attached. 3' denotes a delivered finished roll. Empty cores 4a to 4n are kept in stock in a store 5 (magazine). The store 5 is designed as an inclined ramp and is arranged laterally adjacent to and outside the winding rollers 1, 2. There is a gap between the store 5 and the end faces 1', 2' of the winding rollers 1, 2. The lower end region 5' of the ramp 5 corresponds to the gap-shaped space 6 formed by the outer surfaces 1" or 2" (see Fig. 3). A sleeve feeder 7, e.g., a pneumatic pressure cylinder 8 with a sliding element 9, is connected to the lower end area 5'.

[0012] A core receiving device is moved out of the gap-shaped space 6 (working area, winding area) during core loading. To enable lateral core feeding directly into the winding start position on a tape winding machine, the lateral core receptacles (side plates 10a, 10b) must be moved upwards out of this area. The core receptacles are mounted on a guide device 11 consisting of two guide carriages 11a, 11b (only 11a shown) and are moved by these in translation in directions A, B on stationary guide rods 14a, 14b (only 14a shown). Bearing sleeves 18a, 18b are attached to the guide carriages 11a and are moved along the stationary guide rods 14a, 14b. The guide rods engage through the bearing sleeves 18a, 18b. 17a, 17b denote stationary fastening elements.The feeding of the sleeve 4 from the side is therefore only possible if an opening 13 is present at the corresponding point on this slide 11a (see . Fig. 1a) or the carriage is designed as an open frame. Pneumatic cylinders 12a and 12b denote the guide carriages 11a and 11b, respectively. The side plates 10a and 10b are moved toward the empty core 4 and away from the core with the full roll 3 by means of pneumatic cylinders 15a and 15b, respectively.

[0013] In order to bring the winding core 4 into the winding position with the simplest possible movement mechanisms, roll according to Fig. 2a first moves the winding cores 4a to 4n stored in a supply magazine 5 into the waiting position via an inclined plane.

[0014] As soon as wrap 3 is filled ( Fig. 4a) it is brought into the ejection position ( Fig. 4b) and the holding mechanism of the winding core 4 is released. Now the full roll 3 falls onto an inclined plane 16 and rolls automatically into the removal position ( Fig. 4c).

[0015] After the roll 3 has been ejected, the roll in the waiting position ( Fig. 2a) located winding core 4a with a linear movement mechanism 10 (pneumatic cylinder 8, sliding element 9) into the winding position ( Fig. 2b) and the winding process can begin again. Depending on the machine geometry and process permittivity, the approach to the ejection position and the feeding of the empty winding core 4 (empty core) can be carried out simultaneously.

[0016] 1a, 2a indicate the direction of rotation of the winding rollers 1 and 2, respectively. A roller gap exists between the outer surfaces of the winding rollers 1 and 2.

Claims

[1] Device for feeding tubes to winding rollers for the production of a roll of fiber material, e.g. on a tape winder, in particular in front of a combing machine, in which empty tubes are kept in stock (storage) and a tube is inserted into the gap-shaped space formed by the lateral surfaces of the winding rollers after the roll change, wherein a device for feeding the tube from the storage is provided, characterized by that the storage (5) is arranged laterally of the winding rollers (1, 2) and a sleeve (4; 4a to 4n) can be inserted laterally into the gap-shaped space (6) at the level of the gap-shaped space (6). [2] Device according to claim 1, characterized by that the storage is arranged adjacent to the end faces of the winding rollers. [3] Device according to claim 1 or 2, characterized by that the storage is arranged laterally outside the winding rollers. [4] Device according to one of claims 1 to 3, characterized by that the storage is arranged next to the winding rollers. [5] Device according to one of claims 1 to 4, characterized by that the storage is stationary. [6] Device according to one of claims 1 to 5, characterized by that the storage is designed as an inclined ramp. [7] Device according to one of claims 1 to 6, characterized by that the lower end area of ​​the ramp is assigned to the gap-shaped space. [8] Device according to one of claims 1 to 7, characterized by that the sleeve moves from the storage into the insertion position using gravity. [9] Device according to one of claims 1 to 8, characterized by that the longitudinal axis of the storage runs parallel to the end faces of the winding rollers. [10] Device according to one of claims 1 to 9, characterized by that the longitudinal axis of the storage runs at right angles to the axes of the winding rollers. [11] Device according to one of claims 1 to 10, characterized by that the longitudinal axis of the storage unit is perpendicular to the axes of the sleeves. [12] Device according to one of claims 1 to 11, characterized by that a linear movement mechanism (displacement device) is provided for feeding the core into the winding position. [13] Device according to one of claims 1 to 12, characterized by that the linear movement mechanism for feeding the sleeve comprises a pressure cylinder. [14] Device according to one of claims 1 to 13, characterized by that the gap-shaped space is present in the area above the nip of the winding rollers. [15] Device according to one of claims 1 to 14, characterized by that the slit-shaped space is funnel-shaped. [16] Device according to one of claims 1 to 15, characterized bythat the gap-shaped space is present in front of the nip of the winding rollers. [17] Device according to one of claims 1 to 16, characterized by that the sleeve can be inserted straight into the gap-shaped space. [18] Device according to one of claims 1 to 17, characterized by that the side plates can be displaced locally in relation to the gap-shaped space. [19] Device according to one of claims 1 to 18, characterized by that a guide device is provided for the relocation. [20] Device according to one of claims 1 to 19, characterized by that the guide device comprises two translationally movable guide carriages. [21] Device according to one of claims 1 to 20, characterized by that a guide carriage has or leaves free an opening for the lateral feeding of the empty sleeve. [22] Device according to one of claims 1 to 21, characterized bythat the full roll can be removed from the gap-shaped space and then an empty tube can be inserted laterally into the gap-shaped space. [23] Device according to one of claims 1 to 22, characterized by that the full roll with the side plates can be removed from the gap-shaped space transversely to the longitudinal axes of the winding rollers. [24] Device according to one of claims 1 to 23, characterized by that the full roll with the side plates can be removed from the gap-shaped space parallel to the longitudinal axes of the winding rollers. [25] Device according to one of claims 1 to 24, characterized by that each guide carriage is assigned a pneumatic cylinder for the translational movement. [26] Device according to one of claims 1 to 25, characterized by that each guide carriage is assigned a pneumatic cylinder for the displacement of the side plates parallel to the winding rollers.

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