PL119872B1 - Apparatus for replacement of coils - Google Patents

Description

The patent description was published: April 30, 1985 119 872 Int. Cl.8 D01H 9/00 READING ROOM Inventors: Tadeusz Gaca, Tadeusz Kurowski, Boguslaw Troszczynski Authorized by the patent: Research and Development Center for Textile and Hydraulics "WIFAMATEX", Lodz ( Poland) Device for replacing coils The subject of the invention is a device for changing coils in a textile machine, in particular in a cutting or twisting machine, with automatic replacement of full coils with hollow coils stuck on the spindles at each winding element.

In known devices, the empty coils are stuck to the spindles by pulling the full coils from the spindles and bringing them to the conveyor, grasping the empty coils, replacing them above the spindle tips, or after pulling the full coils from the spindle, reducing them to conveyor level, grasping the empty coils, removing the empty and full coils above the group of spindles. Several movements of the gripping device are required during the period of their operation from the moment the full coils are pulled down to the start of the plunging.

The known coil replacement device consists of a carriage which, for the replacement of the coils in the pre-cutting machine, is guided along the machine next to individual spindles, where the full coils are replaced with hollow coils.

Another known device for replacing the coils has separate grippers for the full and empty coils, all the grippers are on a common gripper bar, and the replacement of the coils is performed by a control device, the known gripper element consisting of a pole a cylinder, made of an elastic material, inserted into the upper bore of the coil. The diameter of the cylinder can be increased by the use of an electromagnetic, pneumatic-tub, hydraulic "rigging device".

By increasing the diameter of the cylinder, a pinch is made between the gripper element and the coil.

Another known device for replacing the coils is known from Polish Patent No. 64275, which consists of a self-actuating control device replacing the full coils with hollow coils in each winding element.

In the device, the spindles are arranged in groups arranged in one or more rows.

Each group of spindles is set parallel to the row of crest spindles on a traveling belt. To keep the coils in an upright position. In order to hold the coils in the vertical position, a pair of coils was provided. A gripper device was provided for each spindle cluster, simultaneously gripping all the coils of a given spindle group.

In the known device, a common gripping device is provided which can replace the full coil with empty coils in a given group of spindles. The guiding device is movable in a vertical plane and is oriented transversely to the axis passing through the spindles of a given group of spindles in a defined plane.

The gripping device allows the poles to be changed - 119872119 872 grippers. The grippers in the device are positioned above the spindles to grasp and lift the full coils and encounter the empty coils. The grippers are also guided above the conveyor belt, moving away from or coming closer to the coil carriers on the conveyor belt. The number of grippers is equal to the number of spindles in the corresponding spindle group. Coil replacement begins by grasping the full coils on the spindles and transferring and seating them on the conveyor belt, and ends by transferring the empty coils from the conveyor belt and hitting the spindles.

: In the unit, the gripper is inserted into the inside of the top hole of the coil. This is done by means of a holding device in the form of an expanding bellows. The free frontal surface of the bellows is closed, while the adjacent peripheral surface, due to the air introduced into it, expands under pressure until it grips firmly on the inner surface of the coil.

The problem of replacing the coils in a fiber optic machine, especially in a threading machine or a twisting machine, according to the invention is solved in such a way that the device for replacing the coils has a gripper beam that moves vertically and horizontally in the plane of the spindle axis and on a plane deviating from the horizontal at an angle perpendicular to the plane of the axis of a group of spindles, transmitted by a known mechanism, and a conveyor for empty and full coils, which has the coil carriers tiltedly fixed. According to the invention, the direct replacement of the full coils with the empty ones is carried out in such a way that the exchange beam, having grasped the empty coils from the tranisiporitera, carries them to the spindle axis, and after grasping and lifting the full coils above the spindles, it carries out a longitudinal movement. by half a scale, by placing the empty coils above the tops of the spindles, lowering is made, leaving the coils empty on the spindles and transferring the full spools to the conveyor.

The coil replacement device according to the invention is distinguished by the short replacement time of the coils.

The subject of the invention is illustrated by an example of an embodiment in the drawing, in which Fig. 1 - - shows a cross-section of a double-sided ring boring machine, on which on both sides there are devices for changing the coils in two different positions, Fig. 2 - shows the device in On the side, the position where the coil carriers are located in the middle of the spindle scale, Fig. 3 - shows the device in a side view in the position where the coil carriers are positioned on the spindle axes, Fig. 4 - gripper bar, 5 is a cross-sectional view of the gripper mechanism, FIGS. 6-20 consecutively following the phases of coil replacement.

The presented cutting machine has known stretching mechanisms, in which the rovings drawn from the non-leading coils are stretched into threads which run through guides and are wound on the bodies of the coils mounted on the spindles; 8, and the spindles 15 are rotatably mounted on the spindle lava and are driven by known mechanisms.

The presented cutting machine has a shaft 18 located on each side of the machine, which causes the movement of the carrying arms 12, the ends of which are bodies 11 with rocker bearings 10 that support the gripper beam 2, while the lifting and lowering of the beam is carried out by the rotation of the shaft 18, which causes the arms 12 to extend or slide, and the deviation of the carrying arms is obtained by rotating the clamp 17, rigidly connected to the arrangement of the arms 12 on a plane perpendicular to the plane of the spindles, the transfer of the movements of the arms and the spelling of the arms by known gear lever and limit switch systems.

The gripper beam 2 associated with the arms 12 is made in the form of an open section profile in which the coil grippers 8 are fastened, in a number equal to twice the number of spindles in the row.

FIG. 4 shows a gripper mechanism according to the invention, which is attached to the gripper beam section 2, has a spindle 1 with a taper of a coil 8, terminated with a taper and secured with "19" and has a clamping lever 3 with an elastic insert 4, whereby the lever 3 is rotatably mounted on the bolt 5 and has a hanging 6, which is operated by a return spring 7, the end of which is fixed to the bearing profile of the gripper beam 2 with a screw 19, and between the longer arm of the door 3 and the wall of the profile 2 is tangential 20, which can be replaced by a cam mechanism 21. The coil is gripped on the spindle by pressing the coil wall 8 against the spindle 1 through a flexible insert 4 placed in the lever arm 3, with the source of the pressure force against the lever arm 3 is the action of the walls of the tube 20 due to filling with a pressure medium from any pneumatic or hydraulic system, or the rotation of the spline 21 driven by any mechanical system. the lever 3 on either side of the spindle 1 alternately causes simultaneous operation of the hollow coil gripping mechanisms or the solid coil gripping mechanisms.

The gripping mechanism for the hollow coils has an additional guiding aid 9 for guiding the hollow coils 8 onto the spindle 1, made as part of a regular pyramid or cone and with the inside facing towards the spindle 1. Below each spindle assembly 15 there are devices for supporting the coils 8, which run the entire length of the machine and have the form of a conveyor 14 with coil carriers 13 made as pivots on which the coil bodies 8 are placed, and the coil carriers 13 are inclined at an angle of less than 90 ° to the level at the beach perpendicular to the plane of the spindles, the distance between the carriers of the coils 13 being equal to the distance of the spindles 15. The method of operation of the 10 15 20 25 30 35 40 45 50 55 69 119 872 device for changing the coils according to the invention is as follows: After winding a sufficient number of yarns on the coil 8, the following collapse and the machine is stopped. The thread guides are moved away and the process of replacing the coils begins.

The coil replacement device is in the idle state. The arms 12, which hold the gripper bar 2, are vertical at their lowest position. The replacement process begins with the deflection of the arms 12 together with the gripper beam 2 towards the angle, and during this time the transporter 14 is loaded with empty coils 8, placed on the carriers of the coils 13. The starting position of the coil transporter 14, loaded with empty coils 8 , it can be twofold. In one case, the hollow coils are positioned along the vertical axis of the spindles (Fig. 3).

The second variant provides for the positioning of the coils in the middle of the scale of the spindles, in which case the first coil carrier is empty (Fig. 2). The tilted gripper bar above the coils lowers and the coils are gripped.

After grasping the coils, the gripper bar is raised to the intermediate position. The next phase is the tilting of the arms 12 together with the gripper beam in a vertical position, in which the hollow coils are placed between the full coils in the plane of the spindle axis, and the handles of the full coils are above the tops of these coils (Fig. 10). .

Another position is the lowering of the arms 12 and the lowering of the gripper beam 2) in which position the full bundles are gripped and then lifted above the spindle tops. In this position, the full and empty coils are in the plane of the spindle axis above their tops. The gripper bar is moved to its starting position to engage the empty coils. The transition to this position takes place by shifting the gripper bar by half the scale in the longitudinal direction. In this position, the hollow coils are above the spindle tips, FIG. 12.

In the next position, lowering the gripping bar causes the hollow coils to be placed on the spindles. The gripping mechanisms of the hollow coils are released and the cycle of transferring the bundles begins, the operation of the device may be twofold: lifting the gripper bar so that the grippers come out of the openings of the upper open coils and tilting the beam with full windings (Fig. 15, Fig. 17) or lifting the full windings to a position where the lower ends of the threaded coils are above the tops) of the spindles and the deflection of the gripper bar Fig. 16, Fig. 18.

The forwarding of full rolls requires the gripper beam to be overturned to the position where the coils with the rolls will be introduced onto the carrier carriers, with the carrier position where the coil carriers are located in the middle, the spindle axis scale is on the first medium, and the last medium remains free. In time! In this operation, the grippers release the coils with windings, the gripper bar rises a little, moves half a scale in a longitudinal return motion, and after the complete coils have been drained into the container, the bar returns to its resting position. ip In the case when the carriers of the coils are located in the axis of the spindles, the movement of the gripper beam by half a scale in the longitudinal direction takes place in a position in which the grasped empty coils have been lifted when the arms are tilted to the intermediate position * Fig. 9, or also during the deflection of the gripper bar holding the full spools after the end of the replacement operation on the spindles, Fig. 17, Fig. 18. 20 Patent Claims 1. Device for replacing the coils in a textile machine, especially in a winder or scraper, equipped with control devices for self-operation active control and simultaneous replacement of all full coils with empty ones stuck on the spindles, where in each winding element the full coils are replaced with empty coils, and the spindles are placed in rows, and each group of spindles is set in parallel, 30 where the device has a sliding conveyor belt parallel to the row of spindles on which the carriers are, and moreover, to each group of boils The shaft is adapted to gripping devices, simultaneously gripping all the coils of a given group of spindles, characterized by the fact that it has a gripper bar (2) fixed on the hooks (10), made in the form of an open section profile, in which the grippers are mounted coils (8) equal to twice the number of spindles, at intervals of 40 half a spindle scale. * 2. Device for changing the coils according to claim 1. The gripper as claimed in claim 1, characterized in that each gripper has a pin (1) taper equal to the coil (8), ended with a cone and fixed with a screw (19), and has a clamping lever (3) with a flexible insert (4), the lever (3) it is rotatably mounted on the pin (5) and has a projection (6) operated by a return spring (7), the end of which is fastened to the bearing profile of the gripper beam (2) with a screw (19), and between the longer lever arm (3) ) and the profile wall of the gripper beam (2) is provided with a flexible hose (20) or a cam mechanism (21), the levers (3) being located on one and the other side of the pin (1) in the arrangement on the gap. A device for changing the coils according to claim 11, 872 Fig. 1 Fig. 2119 872 Fig. 3 Fig. 4 Fig. 5119 872 12 Fig. 6 Fig. 7 Fig. 8 Fig. 1, characterized in that the carrier (14) has the coil carriers (13). Fig. 9 rn - (HI 'and 4 M-4 Fig. 10 No. 1A_ Fig. 11 r1 Fig. 12 t »Fig. 13 Fig. 15lift 872 1 Fig. 16 Fig. 18 Fig. 19 Fig. 20