GB2316417A

GB2316417A - Can conveyor system between two draw frames

Info

Publication number: GB2316417A
Application number: GB9717788A
Authority: GB
Inventors: Ferdinand Leifeld
Original assignee: Truetzschler GmbH and Co KG
Current assignee: Truetzschler GmbH and Co KG
Priority date: 1996-08-22
Filing date: 1997-08-21
Publication date: 1998-02-25
Anticipated expiration: 2017-08-21
Also published as: GB2316417B; CN1175641A; GB9717788D0; ITMI971685A1; JPH1096128A; IT1293613B1

Abstract

In a can conveyor system between two draw frames 1,4 disposed in succession in the operating cycle, in which the spinning cans 13 are moved by at least one conveyor device 7 in a forward direction along a path, there is provided between the upstream draw frame 1 and the downstream draw frame 4 a can store for a plurality of full cans 13' and between the downstream draw frame 4 and the upstream draw frame 1 there is a can store for a plurality of empty cans 13", and each can store is in the form of a conveyor means 22; 25; 23; 15; 21 with at least one driven conveyor element 19; 26; 24; 17; 20. The can conveyor system allows an increased processing speed and is operationally flexible.

Description

2316417 Can conveyor system between two draw frames disposed in succession

in the operating cycle The invention relates to a can conveyor system between two draw frames disposed in succession in the 5 operating cycle.

In the case of a known can conveyor system (DE-AS 1 281 903), the full cans are worked off at a downstream draw frame. For that purpose the full cans are set up in a U-shape. Only when the full cans are empty are they supplied individually in succession as empty cans to the upstream draw frame which fills the empty cans with fibre sliver. Each of the filled cans is supplied individually in succession to the downstream draw frame. In that operation, before and after the filling station of the upstream draw frame a position is provided for one empty can and one full can respectively. It is a disadvantage that the downstream draw frame has to remain waiting until the required number of full cans has been supplied, with the result that a considerable amount of operating time is lost. It is furthermore inconvenient that the supply and discharge of the empty and full cans respectively are interdependent, so that the known can conveyor system is inflexible because of the enforced coupling.

It is an aim of the invention to produce a can conveyor system which avoids the said disadvantages, and which allows in particular an increased processing speed and is operationally flexible.

The invention provides a can conveyor system for use between two draw frames that are arranged in succession in the operating cycle, the conveyor system comprising a path for spinning cans to be transported in the full condition from the upstream drawframe to the downstream draw frame and in the empty condition from the downstream draw frame to the upstream draw frame, wherein between the upstream draw frame and the downstream draw frame there is provided on the path a can store for a plurality of full cans and between the downstream draw frame and the upstream draw frame there is provided on the path a can store for a plurality of empty cans and wherein each of the can stores is in the form of at least one conveyor means comprising at least one driven conveyor element.

Because a respective can store is present for empty and full cans between the upstream draw frame and the downstream draw frame, a plurality of empty cans can be filled at the upstream draw frame with fibre sliver as a plurality of full cans are being worked off at the downstream draw frame. The construction of the can stores as a conveyor device allows an operationally flexible supply and discharge of the empty and full cans from and to the upstream draw frame and from and to the downstream draw frame.

The path for the spinning cans is advantageously an endless path. Advantageously, the can conveyor system cooperates with a can changing station to form an endless path for the spinning cans. The path for the cans is preferably of polygonal configuration.

The empty can store and the full can store are expediently arranged one behind the other in the transport direction. The conveyor element of the conveyor track preferably comprises at least one endless conveyor belt, conveyor bands, rollers or similar means with a drive. For preference a blocking element is associated, viewed in the conveying direction (A, B), with the leading can. The conveyor element, for example, the conveyor belts, is advantageously able to slide through beneath the assembled cans. The empty can store is expediently in the form of an accumulating conveyor (push-up store). For preference the full can store is in the form of an accumulating conveyor (push-up store). The empty can store preferably comprises at least two conveyor tracks. The full can store advantageously comprises at least two conveyor tracks. The push-up stores expediently allow separation of the respective empty and full cans. For preference the circulating spinning cans are conveyed in one direction.

One illustrative embodiment of the invention will now be described in detail with reference the accompanying drawings, in which:

Fig. 1 is a diagrammatic plan view of a can conveyor system according to the invention, arranged between two draw frames; Fig. 2 is a plan view of the can transport system according to Fig. 1, showing longitudinal conveyor devices for the cans; Figs 3a, 3b are sections along III-III in Fig. 2, and illustrate the conveying of a can from a supplying conveyor track onto a transverse conveyor track; Fig. 4 is a simplified perspective view of the feed 10 table of the downstream draw frame with a conveyor track; and Fig. 5 is a block diagram of an electronic automatic control system with connected drive means and sensors.

with reference to Fig. 1, an upstream draw frame 1 (with feed table 2 and drafting equipment 3), for example a draw frame of the HS type manufactured by Tr-dtzschler GmbH & Co. KG, is connected to a downstream draw frame 4 (with feed table 5 and drafting equipment 6), for example a draw frame of the HS type manufactured by Tr(Itzschler GmbH & Co. KG, by means of a can conveyor system 7. Each of the draw frames 1 and 4 has a respective sliver delivery means 8, 9 with a revolving plate.

Presentation of the fibre slivers 10 (see Fig. 4) to the drafting equipment 6 of the downstream draw frame 4 is effected on the feed table 5 by means of a creel run 11 which is provided for filled cans 131 and emptied cans 1311. The creel run 11 has a conveyor track 15. In the region of the creel run 11 the conveyor track 15 is associated with a longitudinal conveyor device 17 (see Fig. 2). Above the creel run 11 the feed table 5 has feed rollers 18a to 18t. Connected to the sliver delivery device 8 of the upstream draw frame 1 are a feed track 21 for empty cans 1311 and a delivery track 22 for cans 131 filled with fibre sliver 10. The conveyor track 15 is arranged perpendicular to the feed track 21 and the delivery track 22. The longitudinal conveyor device 17 is coupled both to the feed track 21 and to a supply track 33, which has a longitudinal conveyor device 24. The conveyor track 23 and the delivery track 22 are connected by a further conveyor track 25 with a longitudinal conveyor device 26. The can conveyor system 7 essentially comprises the conveyor track 15, the feed track 21 (conveyor track), the delivery track 22 (conveyor track) and the conveyor tracks 23 and 25. All of the conveyor tracks 15, 21, 22, 23 and 25 are arranged at right angles to one another. They are linked directly to one another. The conveyor tracks 15 and 25 are arranged parallel to one another, and the conveyor tracks 23, 22 and 21 are arranged parallel to one another. The solid arrows A, B, C, D indicate the conveying direction of the full cans 1311 and the empty arrows E, F indicate the conveying direction of the empty cans 1311. The empty cans 1311 are pushed by a rotary can changer 27 with turnstile (clockwise direction of rotation G) from the feed track 21 beneath the revolving plate 8a of the sliver delivery means 8, are filled at this point with fibre sliver 10 (13111 indicates a partially filled can) and subsequently pushed as a full can 131 by the turnstile 27 onto the delivery track 22. The spinning cans 131, 1311 circulating in the closed can conveyor system are conveyed in a forwards direction (arrows A to E).

is According to Fig. 2, the longitudinal conveyor devices 17, 19, 20, 24 and 26 are arranged on the floor side. Each one comprises two endless parallel conveyor belts 17a, 17b; 19a, 19b; 20a, 20b; 24a, 24b and 26a, 26b respectively which circulate round belt guide rollers 171 to 174; 191 to 194; 201 to 204; 241 to 244 and 261 to 264 respectively. The longitudinal conveyor devices can be constructed, for example, corresponding to German Patent Application 195 09 928.1. The belts lying opposite belt guide rollers at the same belt end are aligned coaxially with one another.

As transfer device between an upstream delivering conveyor track 22; 25; 23; 15 and a downstream transverse conveyor track 25; 23; 15; 21, a respective endlessly circulating short belt 28; 29, 30, 31 is arranged at the end region of the respective transverse conveyor track 25; 23; 15, 21 that adjoins the respective delivering conveyor track 19; 22; 25; 23, 15.

The belts 28, 29, 30 and 31, which circulate round belt guide rollers 28a, 28b; 29a, 29b, 30a, 30b and 31a, 31b respectively, are arranged parallel to the conveyor belts 26a, 26; 24a, 24b; 17a, 17b and 20a, 20b respectively. On the outside of each belt 28, 29, 30 and 31 there is arranged a respective driving element, for example, a respective bolt 32, 33, 34, 35.

The arrows A to F indicate the direction of movement of the upper belt section of the respective associated conveyor belts and transfer belts.

With reference to Fig. 3a, a can 131 is located on the conveyor belts 24a, 24b at the end of the conveyor track 23. In its base region the can has a circumferential recess 36. The can 131 protrudes laterally outwards beyond the conveyor belts 24a, 24b.

The belt guide roller 30a of the belt 30 is located beneath the region of the can 131 protruding laterally beyond the conveyor belt 24b. The band 30 is set moving by the electric drive motor 37, the upper and the lower belt sections moving in the direction of the arrows I and K respectively. As they move, the driving element 34 moves upwards from below - around the belt guide roller 30a - and engages in the recess 36. On further movement of the belt 30, the driving element 34 pulls the can 131 in direction N from the conveyor belts 24a, 24b of the supplying conveyor track 23 onto the conveyor belts 17a, 17b of the transverse track 15. When the driving element 34 has passed the belt guide roller 30b, it drops away downwards around the belt guide roller 30b corresponding to Fig. 3b. At the same time, the conveyor belts 17a, 17b driven by the drive motor 38 convey the can 131 forwards in direction 0.

With reference to Figure 4, for the sake of simplicity only three full cans are shown at the feed table of the downstream draw frame. The three full cans, 131a, 131b and 131c, stand on the conveyor track 15, from which fibre slivers 10a, 10b and 10c respectively are conveyed over the rotatable feed rollers 18a, 18b, 18c respectively in direction P into the sliver guide 46 (entry funnel) for the drawing equipment 6 (see Fig. 1).

With reference to Figure 5, drive means 38 to 42, for example drive motors, for the longitudinal conveyor devices 19, 26, 24, 17, 20, the drive motor 43 for the turnstile of the can changer 27, sensors 44 (not shown) for the displacement control of the cans 131, 1311, and the drive motors, for example 37, for the transverse transfer devices 28, 29, 30, 31 are connected to an electronic automatic control system 45. The can conveyor system according to the invention allows automatic conveying of cans and can exchange between two draw frames 1, 6 in operation.

The arrangement illustrated in Figure 1 renders a space-saving can conveyor system possible.

The present invention further provides a method of conveying full spinning cans from a first, upstream draw frame to a second draw frame downstream of the first, and from the second draw frame to the first, comprising conveying the cans along a continuous path that includes a can store for a plurality of full cans located on the path, between the upstream draw frame and the downstream draw frame, and a can store for a plurality of empty cans located on the path, between the downstream draw frame and the upstream draw frame.

Claims

1. A can conveyor system for use between two draw frames that are arranged in succession in the operating cycle, the conveyor system comprising a path for spinning cans to be transported in the full condition from the upstream drawframe to the downstream draw frame and in the empty condition from the downstream draw frame to the upstream draw frame, wherein between the upstream draw frame and the downstream draw frame there is provided on the path a can store for a plurality of full cans and between the downstream draw frame and the upstream draw frame there is provided on the path a can store for a plurality of empty cans and wherein each of the can stores is in the form of at least one conveyor means comprising at least one driven conveyor element.

2. A can conveyor system according to claim 1, in which the path for the spinning cans is an endless path.

3. A can conveyor system according to claim 1, in which the can conveyor system cooperates with a can changing station of a draw frame to form an endless path for the spinning cans.

4. A can conveyor system according to any one of claims 1 to 3, in which the path is of substantially polygonal configuration. 25

5. A system according to any one of claims 1 to 4, in which the empty can store and the full can store are arranged one behind the other in the transport direction.

6. A system according to any one of claims 1 to 5, in which the at least one conveyor element of the conveyor means is endless.

7. A system according to any one of claims 1 to 5, in which the at least one conveyor element of the conveyor means comprises at least one conveyor belt, conveyor bands, rollers or the like.

8. A system according to any one of claims 1 to 7, in which there is one or more blocking elements for temporarily stopping the advance of a leading can along the path.

9. A system according to claim 8, in which the at least one conveyor element, for example, the conveyor belts, is able to slide through beneath the stationary can or cans, whereby a group of cans can be assembled.

10. A system according to any one of claims 1 to 9, in which the empty can store is in the form of an accumulating conveyor (push-up store).

11. A system according to any one of claims 1 to 10, in which the full can store is in the form of an accumulating conveyor (push-up store).

12. A system according to claim 10 or claim 11, in which the push-up store or stores allow separation of the respective empty and full cans. 25

13. A system according to any one of claims 1 to 12, in which the empty can store comprises at least two conveyor means, the arrangement being such that the empty cans are able to pass along the said at least two conveyor means in series.

14. A system according to any one of claims 1 to 13, in which the full can store comprises at least two conveyor means, the arrangement being such that the full cans are able to pass along the said at least two conveyor means in series.

15. A system according to any one of claims 1 to 14, in which the circulating spinning cans are conveyed in one direction around the path.

16. A system according to any one of claims 1 to 15, further comprising an electronic automatic control system to which at least drive means for the conveyor element or elements and sensors for the displacement control of the cans are connected.

17. A system according to claim 16, in which a drive motor for a can changer is connected to the electronic automatic control system.

18. A can conveyor system between two draw frames disposed in succession in the operating cycle, in which the spinning cans are moved by at least one conveyor device in a forward direction, in which the spinning cans circulating on a closed conveyor path are located in direct contact with one another, at least as regards a subgroup, and the closed conveyor path is in the form of a polygon, the sides of which form an angle with one another, wherein between the upstream draw frame and the downstream draw frame there is at least one can store for a plurality of full cans and between the downstream draw frame and the upstream draw frame there is at least one can store for a plurality of empty cans and each can store is in the form of a conveyor track with a driven conveyor element.

19. A textile installation according to claim 19, in which a portion of the path serves as a feed table for the downstream draw frame, sliver being removed in use from spinning cans positioned on that portion of the path.

20. A textile installation comprising a first draw frame arranged to deliver fibre sliver into spinning cans, a second draw frame to which the fibre sliver so obtained is to be delivered and a can conveyor system according to any one of claims 1 to 18 for conveying full spinning cans from the first draw frame to the second draw frame and empty spinning cans from the second draw frame to the first draw frame.

21. A method of conveying full spinning cans from a first, upstream draw frame to a second draw frame downstream of the first, and from the second draw frame to the first, comprising conveying the cans along a continuous path that includes a can store for a plurality of full cans located on the path, between the upstream draw frame and the downstream draw frame, and a can store for a plurality of empty cans located on the path, between the downstream draw frame and the upstream draw frame.

22. A can conveyor system comprising at least one conveyor means and at least one driven conveyor element associated therewith substantially as described herein with reference to and as illustrated by any of Figs. 1, 2, 3a and 3b, 4 and 5 herein.