IT9083362A1 - AUTOMATIC FEEDING PROCESS OF BELT VESSELS IN TEXTILE MACHINES AND EQUIPMENT ADOPTING SUCH PROCEDURE - Google Patents

Description

Description of the invention having as title:

"PROCEDURE FOR AUTOMATIC FEEDING OF TAPE VESSELS IN TEXTILE MACHINES AND EQUIPMENT ADOPTING THIS PROCEDURE"

SUMMARY

Process for the automatic feeding of cans (12) of sliver into textile machines, particularly open-end spinning machines (10), said can feeding (12) taking place by means of mobile means (13) in continuous automatic movement between the sliver production machines ( 11) and said textile machines, said mobile means (13) traveling along the fronts of said spinning machines (10) or the desired areas of other textile machines and being suitable to intervene on the spinning units or on other units that request them, said vessels (12) for containing the tape being advantageously of the elongated type, for example with a rectangular horizontal section, providing for the direct loading of the cans full of tape (112) on the mobile means (13) in correspondence with the tape production machines (11). a "neutral" positioning of said vessels (112) on said movable means (13), and the transfer of said movable means (13) on paths (15) which have a single path between the fronts or other areas of adjacent machines, during said travel said pots (112) being oriented in a position suitable for feeding either one or the other of said fronts or other areas of adjacent machines.

Apparatus for the automatic feeding of cans of sliver (12) into textile machines, particularly open-end spinning machines (10), said feeding of cans (12) taking place by means of mobile means (13) in continuous automatic movement between the tape production machines ( 11) and said textile machines, said mobile means (13) traveling along the fronts of said spinning machines (10) or the desired areas of other textile machines and being suitable to intervene on the spinning units or on other units that request them, said vessels (12) for containing the tape being advantageously of the elongated type, for example with a rectangular horizontal section, said apparatus adopting the above method, said mobile means (13) presenting means (17) for the support in a neutral position and for the temporary orientation (18) of said vessels filled with ribbon (112).

FIELD OF APPLICATION

The present invention relates to a process and an apparatus suitable for feeding pots in textile machines.

More particularly, the invention provides for the automatic feeding of cans full of textile tape and the automatic evacuation of empty cans to / from textile machines, particularly open-end spinning machines.

The invention is directed particularly, but not limitedly, to vases of the elongated type, ie vases having a predominant dimension in the horizontal section with respect to the other, such as rectangular vases to which reference will be made in the following description by way of example.

TECHNIQUE NOTE

In the state of the art, the problems connected with the transport and positioning of the pots containing ribbons of fibers in correspondence with the feeding positions on the textile machines are known.

Said textile machines can be all those machines which operate on belts contained in cans, such as spindle benches, spinning machines, in particular open-end spinning machines to which we will refer in the following description by way of example. A plurality of solutions has been proposed to solve these problems, in particular in the feeding of open-end spinning machines.

These solutions generally have trolleys, enslaved to one or more spinning machines, which make obligatory paths by transporting full and / or empty cans to and from suitable temporary storage stations for said cans.

The trolleys operate on one machine front at a time, carrying out patrols and handling the usual round pots.

Examples of such solutions are described in WO-A-06358, in FR-A-2367843, in DE-A-3440598 and in DE-A-3505494.

Solutions are also known in which the trolleys operating on the spinning machines are suitable for handling and filling the empty cans with sliver on the spot.

For this purpose, they themselves carry a temporary belt magazine and are equipped with appropriate devices for depositing said belt in the cans emptied during spinning.

Examples of such solutions are described in EP-A '; 87202222.3 and in EP-A-89105789 .9.

The present applicant has set itself as its objective a process, and relative apparatus, suitable for handling full and empty cans, preferentially of the elongated type, placing them directly in feeding to the spinning machine, or other textile machine, or evacuating them from the feeding positions.

DESCRIPTION OF THE FOUND

The invention is set forth in the main claims.

The related claims illustrate various characterizations of the invention.

The invention provides that one or more mobile trolleys, the number of which is a function of the spinning machines making up the plant, cooperate directly with the sliver-producing machines, for example drawing frames.

Each drawing frame fills elongated pots with ribbon which, once packaged, are automatically loaded onto the mobile trolleys to be sent to the spinning area.

On the trolleys said elongated pots are loaded in a "neutral" position, as will be better clarified hereinafter, having the head of the belt pre-positioned in a defined and fixed position on the edge of each pot.

After loading the full elongated can, the trolley is started on a patrol path of the spinning machines.

The carriage moves automatically on pre-established paths, being able for example to be of the wire-guided type, and performs transfers in one direction only between pairs of adjacent spinning machines.

Being equipped with means of communication with the spinning units which require a change of feed, in correspondence with these units it "orients" the full can towards the machine front to which said units belong.

In other words, the carriage of the invention can, in its patrol path, indifferently feed one or the other of the contiguous spinning frames, proceeding with the orientation of the full can towards one or the other of said spinning machines.

Following the orientation, the jar is unloaded from the trolley and positioned directly in correspondence with the spinning unit that has requested it.

In this way, the spaces necessary for the spinning machines can be considerably reduced, since the usual double path of the carriage is not provided for each front of adjacent spinning machines.

The trolley is also provided with suitable means for picking up and loading on it the empty vessel to be evacuated, said empty vessel subsequently being automatically unloaded at the drawing frames or in another desired collection station.

Said trolley can also be advantageously equipped with means for gripping the pre-positioned end of the belt present on the full can.

The end of the sliver can be brought to cooperate directly with the spinning unit for the automatic restart of the relative spinning process.

The invention provides a working methodology and equipment that is well suited to current spinning needs, with particular reference to open-end spinning machines fed with rectangular pots or any other elongated shape. This results in savings in plant costs, as well as in running them due to the simplicity and rationality of the solutions adopted.

The invention, as mentioned, can also be applied in other cases relating to different machines operating on a belt, for example in the movement of cans between drawing frames and spindle benches, since intermediate storage stations for full and empty cans may also be present.

ILLUSTRATION OF DRAWINGS

With reference to the attached tables, provided by way of non-limiting example, we have that: - fig. 1 illustrates a lay-out solution for a spinning room with the adoption of the invention;

- fig. 2 is a plan view of a functional diagram of the apparatus of the invention; - fig. 3 is a schematic side view of a trolley according to the invention;

- figs. 4 show a type of elongated vase that can be used in the invention.

DESCRIPTION OF THE DRAWINGS

In fig. 1 shows a possible lay-out of a spinning department having open-end spinning frames 10 and drawing frames 11.

The elongated cans 12 are filled with sliver in the drawing frames 11 and from these are unloaded onto mobile trolleys 13 which ensure the connection between the open-end spinning frames 10 and the drawing frames 11 themselves.

Said mobile trolleys 13, advantageously of the wire-guided type, automatically travel along fixed paths, being able to choose a preferential path according to the temporal requirements present in the spinning machines 10.

The full can, indicated schematically by 112, is loaded onto the trolley 13 in a "neutral" position, that is, in a waiting position as will be better specified hereinafter.

The carriage 13, following a path 14 connecting the drawing frame 11 and the main path 15 according to the arrow 16, partially or totally covers the first front of the first open-end spinning frame 10.

The filled can 112 is positioned on the trolley 13 above a rotating platform 17, which is operated to rotate 90 ° both clockwise and counterclockwise according to the arrow 18 (see Figs. 2 and 3).

The position defined as "neutral" of the can 112 on the platform 17 is such as to present it orthogonally arranged with respect to the similar cans 12 working on the spinning frames 10 while the trolley 13 is moving along the main paths 15.

The filled can 112 is therefore ready, whether it travels the length outside the first spinning frame 10, or whether it travels the length inside the spinning frames 10 (see fig. 2), to be rotated in one direction or the other (dotted position in fig. 2), according to 18, to respond to requests for supplying vessel 112.

Thus, between the spinning frames 10 there is only one travel line 15, resulting in significant advantages in the occupied spaces and in the general management of the spinning department.

The mobile trolley 13 is provided with at least one housing compartment for an empty can 212 as picked up by the spinning frames 10, said empty can therefore being advantageously arranged perpendicularly to the full can 112 in a neutral position.

In configuration A of fig. 1, the carriage 13 has, in correspondence with the drawing frames 11, a full can 112 in neutral position and no empty can 212, if it is moved according to arrow 16.

If it came in the opposite direction to arrow 16 it would bring an empty jar 212 and no full jar 112.

In configuration B, a trolley 13 is operating on a spinning unit, having picked up an empty can 212 in correspondence with the same unit and preparing to rotate 90, either to the right or to the left as required, the full can 112 in order to allow the power supply of said unit. In configuration C, a trolley 13 is moving towards the area of the drawing frames 11, carrying with it only the empty can 212 to be unloaded.

In the return phase to the drawing frame area 11, the carriage 13 can advantageously travel through direct return paths 19, which can equally be traveled also in the forward phase if the furthest spinning frames 10 are to be reached directly.

The trolley 13 is preferably equipped with suitable means to take the end of the belt 20 as pre-positioned on the container 112.

Said means can be a pair of rotating arms 21, possibly telescopic, carrying a gripper assembly 22 at the end.

Each rotating arm 21 is placed in a lateral position on the carriage 13, so as to descend vertically, according to 23, to clamp said end 20, whether the vessel 112 is rotated to the right or to the left.

Subsequently, the arm 21 is set in rotation, according to 24, and possibly elongated, to bring the garment 20 directly onto the spinning unit to be restarted or in correspondence with an automatic spinning restart carriage present, as known, on the spinning machine 10.

Each arm 21 can equally carry at the end of the expulsion units 25 of the vessel 112 from the trolley 13.

Said ejection groups 25 descend vertically 23 until they cooperate with the upper internal edge of the vessel 112, after which, with the rotation 24 of the arm 21, they unload it from the carriage 13.

According to a variant, there is only one rotating arm 21, arranged in a central position and advantageously on the same rotating platform 17, which unloads both to the right and to the left of the carriage 13.

Said trolley 13 is also equipped with a group 26 for gripping and moving the empty jars 212, said group 26 being able to be a sliding and extensible group and being advantageously equipped with magnetic means for coupling with similar magnetic means 27 present on the jars 12.

In fig. 3 indicates with 28 an actuation and control unit for the functions of the carriage 13 mentioned above.

In figs. 4a and 4b indicate by way of example, respectively in longitudinal section and in plan, a type of elongated vase 12, per se known, advantageously usable in the present invention.

The vessel 12 in this case has a rectangular section and has a movable bottom 29 cooperating with springs 30 and with a pantograph balancing system 31.

A preferential embodiment of the invention has been described here, but numerous variants are possible for those skilled in the art, particularly in the devices for gripping the web end 20 and for moving the cans 12, as well as in the general configuration of the trolley 13, without thereby departing from the scope of the invention as claimed.

Claims (1)

1 - Process of automatic feeding of cans (12) of sliver into textile machines, particularly open-end spinning machines (10), said can feeding (12) taking place by means of mobile means (13) in continuous automatic movement between the production machines of the belt (11) and said textile machines, said mobile means (13) traveling along the fronts of said spinning machines (10) or the desired areas of other textile machines and being suitable to intervene on the spinning units or on other units that request them, said tape containment cans (12) being advantageously of the elongated type, for example with a rectangular horizontal section, characterized by the fact that it provides for the direct loading of the cans full of tape (112) on the mobile means (13) in correspondence with the tape production machines (11), said loading involving a "neutral" positioning of said vessels (112) on said movable means (13), and the transfer of said movable means (13) on paths (15) which present or a single path between the fronts or other areas of adjacent machines, during said travel said pots (112) being oriented in a position suitable for feeding either one or the other of said fronts or other areas of adjacent machines. 2 - Process according to Claim 1, characterized in that said vessels filled with ribbon (112) are loaded onto the mobile means (13) with the end of the ribbon (20) pre-positioned. 3 - Process as claimed in Claim 1 or 2, characterized in that said pre-positioned web end (20) is automatically picked up on the mobile means (13) and made to cooperate with the spinning unit or with another textile unit that requests it. . 4 - Process according to one or the other of the preceding claims, characterized in that said vessel full of ribbon (112) is automatically unloaded by the mobile means (13). 5 - Process according to one or the other of the preceding claims, characterized in that the empty can (212) taken from the relative spinning unit or from another textile unit is automatically loaded and unloaded by the mobile means (13). 6 - Apparatus for the automatic feeding of cans of sliver (12) into textile machines, particularly open-end spinning machines (10), said can feeding (12) taking place by means of mobile means (13) in continuous automatic movement between the production machines of the belt (11) and said textile machines, said mobile means (13) traveling along the fronts of said spinning machines (10) or the desired areas of other textile machines and being suitable to intervene on the spinning units or on other units that request them, said tape containment vessels (12) being advantageously of the elongated type, for example with a rectangular horizontal section, said apparatus adopting the method of the preceding claims, characterized in that said mobile means (13) have means (17) for supporting in the neutral position and for the temporary orientation (18) of said vessels filled with tape (112). 7 - Apparatus as claimed in Claim 6, characterized in that said movable means (13) have at least one means for gripping and positioning (21,22) the end of the belt (20). 8 - Apparatus as claimed in Claim 6 or 7, characterized in that said movable means (13) have means (25) for expelling said vessel filled with tape (112). 9 - Apparatus according to the preceding claims from 6 onwards, characterized in that said mobile means (13) have a housing for empty jars (212). 10 - Apparatus as claimed in claims 6 onwards, characterized in that said mobile means (13) have means (26) for moving said empty vessels (212).