EP0344484A1

EP0344484A1 - Can for textile slivers

Info

Publication number: EP0344484A1
Application number: EP89108204A
Authority: EP
Inventors: Roberto Meroni; Fabio Lancerotto; Fred Viol; Umberto Gerin
Original assignee: Scaglia SRL
Current assignee: Scaglia SRL
Priority date: 1988-06-01
Filing date: 1989-05-06
Publication date: 1989-12-06
Also published as: IT8883405A0; IT1220889B; JPH0228482A

Abstract

Can (10) for textile slivers which is suitable to feed spinning units in spinning machines, particularly spinning machines of the open-end type, and has a horizontal section (19) of a substantially rectangular type.

Description

This invention concerns a can for textile slivers. To be more exact, the invention concerns a can to hold textile slivers which has a substantially rectangular conformation and is suitable to feed with sliver a spinning unit of textile machines, which advantageously are open-end spinning machines.
The can according to the invention is also suitable to cooperate with automatic devices to distribute sliver within the can in its position in correspondence with the relative spinning unit.
Many types of cans employed to hold textile materials are known in the state of the art. Such known cans have a plurality of shapes and sizes.
In particular, the cans used to hold sliver coming from gill boxes and intended to feed open-end spinning machines have a circular section and diameters which vary according to the spacing between the spinning units of the open-end machines.
These cans are generally selected with the biggest possible diameters so as to hold great quantities of sliver, these diameters being greater than the spacings between the spinning units.
This entails the arrangement of cans in several rows below the spinning machine, with resulting difficulty in movement of the cans by the machine operatives.
This arrangement makes very hard any automatic operations to change or fill the cans in cooperation with automatic devices intended for this purpose.
The present applicant has designed, tested and embodied a textile sliver can which can be used to feed spinning machines and to overcome the problems of the state of the art.
The invention is disclosed in the main claim, while the dependent claims describe various characterizations.
The can according to the invention has a horizontal section of a substantially rectangular type; the rectangle has a very elongated conformation, with two sides having a length much greater than that of the other two sides.
This enables great quantities of sliver to be distributed in the can while keeping the transverse bulk of the can, along its shorter sides, within the spacing between the spinning units.
In this way each can feeds its own spinning unit without any need for arrangements in more than one row, thus facilitating any automatic changing systems.
As an example for merely comparative purposes, we may say that in the state of the art an open-end spinning machine with a spacing of 230 mm. between spinning units is fed advantageously from cans having a circular section with a diameter of 500 mm. and a height of 950 mm. and arranged of necessity in two rows, these cans having a usable containment volume of about 0.15 cu.metres.
According to the invention an equal usable volume is available in a can having a rectangular section with a shorter side of 220 mm., a longer side of 800 mm. and a height of 950 mm. This rectangular can has constructional features analogous to those of the cans of the state of the art.
For instance, the can can be equipped inside with a movable bottom connected to a spring and pantograph system, can run on wheels or slide on the floor by means of stationary elements and can have rounded and reinforced edges.
On its sidewalls corresponding to the short side of the rectangle, the can according to the invention comprises engagement means able to cooperate with corresponding means positioned on automatic devices that handle and remove the can from its position corresponding with the relative spinning unit.
These engagement means may be of a magnetic or suction type or of a mechanical coupling type or be other like means suitable for the purpose.
The can may also have in its upper part a position to support and hold the end of the sliver, this position being suitable to cooperate with possible automatic devices which insert the sliver into the spinning unit.
According to a variant the can is conformed in its upper part to cooperate with guides on the open-end spinning machine which are suitable to keep the can lifted from the floor.
The attached figures, which are given as a non-restrictive example, show the following:-

Fig.1 shows a lengthwise vertical section of a can according to the invention;
Fig.2 shows a plan view of the can of Fig.1;
Fig.3 shows a side view of the can of Fig.1;
Figs.4 to 7 show variants of the embodiment of Fig.1;
Fig.8 shows a variant of the can of Fig.1.

In Figs.1, 2 and 3 a can 10 according to the invention comprises a chamber 11 of a substantially rectangular horizontal section to hold sliver. This section is a very elongated rectangle and has two sides 12 with a much greater length than that of the outer two sides 13.
The can 10 has a stationary bottom 14 and walls 13 which are connected together by rectangular coupling elements 16, which also protect the can 10 as in the state of the art.
In the same way the walls 15 comprise at their upper end a reinforcement element 17 and a protective element 18, both of which are rectangular. The materials of which these parts consist are analogous to those employed in circular cans of the state of the art.
The state of the art covers also a movable bottom 19 cooperating with springs 20 and a pantograph-type balancing system 21 to ensure descent and ascent of the movable bottom 19 in a perfectly horizontal plane.
Means on which the can 10 can run are connected to the stationary bottom 14 and are wheels 22 in the example of Figs.1, 2 and 3.
Engagement means 23, advantageously of a magnetic type, are included on the frontal walls 15 of the can 10 and are employed for the engagement or movement of the can 10 in relation to its position on the spinning machine by means of suitable means to handle and/or fill cans 10 with sliver.
Figs.4 and 5 show variants of the embodiment of Figs.1, 2 and 3. Elements 24 for the sliding of the can 10 on the floor instead of the wheels 22 are shown at the base of the can 10 on the coupling element 16.
The engagement means 123 consist of a projecting plate 25 comprising a shaped aperture 26 within which a coordinated element located on a can handling unit is inserted and thereafter rotated.
Figs.6 and 7 show diagrams of further possible variants of the engagement means 23-123. In Fig.6 the engagement means 223 shown from above is a tubular element 27 that cooperates with lateral engagement means 28 of a can handling unit 29.
Fig.7 gives a front view of an engagement means 323 consisting of a pocket 30 that cooperates with an insertion element 31 operated by a suitable lever system.
Fig.8 shows a variant of the can 10 in which the protective element 18 protrudes considerably from the walls 15 of the can 10 so that it can cooperate by means of its lower surfaces 33 with stationary guides positioned in correspondence with each spinning unit of the open-end spinning machine. In this variant the can 10, which does not include wheels 22 or slider elements 24, is moved in relation to the spinning unit and is always kept lifted from the floor. This is also its position during the spinning process.

Claims

1 - Can for textile slivers which is suitable to feed spinning units in spinning machines, particularly spinning machines of the open-end type, and is characterized in that it has a horizontal section of a substantially rectangular type.

2 - Can (10) as claimed in Claim 1, in which the rectangular section has sides (12) of a length considerably greater than that of its other sides (13).

3 - Can (10) as claimed in Claim 1 or 2, which comprises engagement means (23-123-223-323) for its automatic handling.

4 - Can (10) as claimed in any claim hereinbefore, in which the engagement means (23-123-223-323) are located on at least one of the frontal walls (15) of the can (10).

5 - Can (10) as claimed in any claim hereinbefore, which comprises a protruding protecting element (118) for cooperation with stationary guides located on the spinning machine.