WO2016012887A1

WO2016012887A1 - Frame for a combing machine

Info

Publication number: WO2016012887A1
Application number: PCT/IB2015/054987
Authority: WO
Inventors: Daniel Bommer; Ueli Stutz
Original assignee: Maschinenfabrik Rieter Ag
Priority date: 2014-07-21
Filing date: 2015-07-02
Publication date: 2016-01-28
Also published as: JP2017524837A; CH709899A2; EP3172366A1; CN106574406A

Abstract

The invention relates to a frame for a combing machine (1) having a plurality of combing units (X1 - X8), which are arranged adjacent to each other in a row and are attached between two frame elements (RE), which are supported on the floor (O) and are connected to each other by means of a longitudinal member (7) extending at a distance (FA) from the floor. For economical production and simple assembly, according to the invention a plurality of frame shields (RS) are provided, which are fastened to the longitudinal member at a distance (G) and which are oriented substantially vertically, and the combing units (X1 - X8) are each supported between two adjacent frame shields (RS), which are detachably connected to each other by means of at least one transverse web (QS), which extends at a distance from the longitudinal member (7).

Description

Frame for a comber

The invention relates to a frame for a comber having a plurality of combing units arranged next to each other in series, which are mounted between two frame elements which rest on the ground and are connected to one another via a longitudinal member running at a distance from the ground.

The combing machines used in practice today generally have eight combing heads arranged next to one another, to each of which a cotton wool wrap is provided for combing out. The nonwoven fabric combed out and delivered by the individual combing heads is combined into a sliver by means of known devices and supplied to a subsequent drafting unit on a guide table transversely to the material flow direction of the combing head. The sliver formed at the drafting device is then placed in a loop in a can through a funnel wheel in a can. Such combing machines work today with Kammspielzahlen of up to 600 KS / min.

These known combers have a gear unit, a longitudinal part with juxtaposed combing heads and a drafting unit with subsequent tape storage. The longitudinal part knows a machine frame, which consists of a solid bottom plate, on which massive side plates are attached. Between the side plates, which are also provided with bearings for the longitudinal shafts, the individual units of the combing heads are attached.

This known embodiment is suitable for absorbing and absorbing the high dynamic loads occurring during the combing process. However, the assembly work for this construction of the machine frame is relatively high and requires qualified specialist personnel in order to be able to make the necessary exact adjustments and adjustments. In addition, the required items on high production costs.

To increase the number of combs and ultimately also to increase productivity, a combing machine was proposed in CH-PS 681 309, wherein instead of the known combing heads individual combing units are used which instead of a lap of a lap roll at least one sliver to Auskäm- presented. This sliver is fed from a comb located below the Kämmaggregates the combing unit. The fiber slivers delivered and combed out of the individual combing units are collected on an infeed table and fed to a subsequent drafting system. The inlet table consists of a, running at a distance from the ground support on which the individual combing units are attached and which is supported on both ends on the floor. The individual combing units are driven by electric motors and can be operated from two sides. Therefore, a complex control and operation is necessary.

In development of the embodiment described above, therefore, in the DE

102006026841 A1 proposed an embodiment in which adjacent combing units are mounted on a supported on both sides of the ground support frame. Between the Abstützungen the support frame runs at a distance to the ground. The discharge direction of the fiber slivers formed on the individual combing units takes place transversely to the conveying direction of the subsequent conveyor table, as in the case of the conventional combing machine. The attachment of the housing of the combing units on the support frame shown as a square tube profile (also called longitudinal member) is hereby indicated only schematically by means of fittings. Furthermore, in published EP 2 397 583 A2 an embodiment of a

Coming machine shown, wherein a plurality of combing heads are arranged between a right and left frame part, wherein the frame parts are supported on the ground. In the middle section additional supports may be provided on the ground. Between the right and left frame parts at least two side members are proposed, of which at least the forceps shaft, the circular comb shaft and a tear-off roller are supported. The type of attachment is not shown and described in detail here.

Based on the described prior art, the present invention seeks to propose a cost-effective design of a frame of a comber, which on the one hand has sufficient stability to absorb the existing mechanical loads and on the other hand, a simple and rapid assembly of the comber, in particular the longitudinal part of the comber is made possible.

To solve this problem, it is proposed that a plurality of spaced-apart on the side member, substantially vertically aligned frame signs are provided and the combing units are each mounted between two adjacent frame plates, which detachably connected to each other via at least one, extending at a distance from the side member transverse web are. The term "transverse" in the term "transverse web" refers to the alignment of the web with the frame images. The respective transverse web is advantageously aligned parallel to the side member.

With this design, it is possible to use compact and the size of the respective Kämmaggregate customized frame signs, which are easy to attach to the side rail by means of fasteners. The necessary stability and dimensional stability of this assembly is achieved by the use of an additional transverse web, which is detachably connected to adjacent frame signs. That the side member with the required frame signs can be relatively easily pre-assembled, the bearings are already positioned exactly to each other. Furthermore, it is proposed that a lower tong plate of a nipper unit is attached to the respective transverse web. Thus, the cross bar can serve as an assembly aid for the attachment (exact positioning) of the nipper unit.

For the maintenance of the nipper unit (better accessibility) and for the attachment of the feeders for the fiber material, it is advantageous if the nange naggregat, in particular the lower nipper plate is mounted at an angle to a horizontal plane, the lower nipper plate starting from their front clamping lip rises to the rear. Therefore, it is proposed that the respective transverse web - viewed transversely to its longitudinal direction and extending starting from a front operating side of the comber at an angle (a) rising.

Advantageously, it is further proposed that the longitudinal member consists of a longitudinal profile, with a, the longitudinal profile on one side projecting side wall is provided and the frame plates rest in the space between the longitudinal profile and the side wall on the longitudinal profile and the side wall and are fixed in the area of the system. Thus, in particular the rotational stiffness of the longitudinal member is increased in the region of the connection with the frame sliders.

In this case, as proposed, the longitudinal profile be formed as a unilaterally open U-profile, the opening of which points away from the front operator side of the combing machine and the side wall extends as an extension of the bottom wall of the U-profile vertically upwards. This allows a simple connection between the longitudinal profile and the frame signs, which can be easily created and mounted in the existing space for mounting.

To further increase the strength, in particular in the longitudinal direction of the longitudinal profile, it is proposed that the longitudinal profile of the longitudinal carrier is provided with transverse struts extending transversely to the longitudinal direction of the longitudinal profile. This can be increased while reducing the weight of the longitudinal beam whose bending strength.

Advantageously, the longitudinal member can be produced as a casting. Likewise, the frame signs, as well as the frame members can be made as a casting. The respective castings may preferably be made of gray cast iron or nodular cast iron. Thus, all screwed components have the same thermal expansion coefficient and heating does not lead to uneven deformation. For easy attachment of at least one suction channel is further proposed that the frame members are provided with openings, in which at least one, arranged longitudinally and parallel to the longitudinal member suction channel. This makes it possible to position the suction channel by simply threading it into the existing passage openings and to fix it in this position.

In order to connect the suction channel with the individual combing units, it is further proposed that the suction channel is provided between the frame elements with suction nozzles arranged at a distance from one another, which are connected to the individual combing units.

For simple and precise positioning of the longitudinal shafts is proposed that the frame signs are provided with bearing mounts for the storage of longitudinal shafts. Preferably, the frame is used on a combing machine.

Further advantages of the invention will be described and demonstrated by the following embodiments. Show it:

1 shows a schematic side view of a conventional combing machine according to the known prior art

2 shows a schematic side view of a further embodiment according to the known prior art

3 shows a schematic side view of a combing machine according to the invention, FIG. 4 shows a schematic side view X according to FIG

5 is an enlarged partial view of Figure 4

1 shows a schematic side view (operating side) of a conventional combing machine 1 which has a drive unit A, a longitudinal part LT with adjacent Kämmköpfen K1 - K8 and a tape tray BA with a drafting system S.

The drive of the individual combing units, not shown (pliers, circular comb, tear-off cylinders, etc.), takes place via schematically illustrated drive shafts E, which extend from the drive unit A over the entire length of the longitudinal part LT.

The combing units of the individual combing heads, not shown here, are respectively mounted and mounted between two vertically aligned frame plates RS. The frame plates RS are provided with corresponding bearing points and fastened to base plates B1, B2, by means of which they are supported on the ground O. The floor panels B1, B2 are usually made of solid castings, which are provided with additional adjustable elements to adjust these plates in the vertical direction to compensate for uneven floors.

The slivers B formed on the individual combing heads are deposited on a conveying table FB and are fed side by side to a following drafting system S. The fiber material warped in the drafting system S leaves the drafting system in the form of a nonwoven fabric which, via known nonwoven guides, becomes a fiber sliver. is summarized. This sliver is then fed via diagrammatically illustrated and known transport means to a calender roll pair KW, which delivers the sliver to a funnel wheel TR, via which it is placed in a can K in a loop-shaped manner.

2 shows a further, already known embodiment of a combing machine 1, wherein the longitudinal part LT, which extends between a drive unit A and a belt tray BA, has a side member 8 on which a plurality of combing units X1 to X16 arranged side by side are fastened. These combing units generally have a smaller dimension than the combing heads of the embodiment shown in FIG. 1, especially since they are charged with only one or two fiber edges Z which are drawn off from cans F 2 to F x parked below the longitudinal carrier 8.

The combing units X1 to X16 with a width C are arranged directly next to one another and screwed to the carrier 8, as can be seen from FIG. 8 of the publication of DE-102006026841 A1. The combing units X1 to X16 each have a housing which is provided with corresponding bearing points to support the drive shafts, which are driven by the drive unit A.

As in the case of the first known exemplary embodiment, the slivers B formed on the individual combing heads are also deposited on a conveyor table FB (eg a driven conveyor belt) and fed next to each other to a following drafting system S in a transport direction D. The warped in the drafting system S fiber material is also summarized following the drafting to a sliver then fed via schematically illustrated transport means a Kalanderwalzenpaar KW. This transfers the sliver to a subsequent funnel TR, via which the sliver is placed in a pot K looped. With this embodiment, a free space FR below the housings of the combing units X1 to X16 is achieved with a distance FA to the floor O, in which z. B. the cans F2 to Fx shown schematically can be turned off. Likewise, this clearance allows good accessibility to the combing units. In addition, it is possible to install in this space suction channels for the suction of the combed components.

Starting from the last-described embodiment, an embodiment (Fig.3 - Fig.5) of the invention is shown below, which is a simple and has low cost construction and is easy to assemble. In this case, the required strength values of the longitudinal part LT are met and sometimes even exceeded in order to withstand the loads occurring during operation.

In the exemplary embodiment of FIG. 3, a longitudinal part LT of a combing machine 1 is shown, wherein the drive unit A laterally adjoining this longitudinal part is indicated only schematically. Likewise, a subsequent tape tray BA with a drafting unit S is indicated only schematically. These can be designed as in known designs (see FIGS. 1 and 2). The longitudinal part LT in Figure 3 and Figure 4 consists of a single longitudinal member 7, which is fixed to frame elements RE via schematically shown screws R at its two ends. He has a distance FA to the ground O on. The two frame elements RE are provided on their undersides each with two height-adjustable feet 20, via which they are supported on the floor O. The adjustable feet allow the longitudinal part to be leveled out in relation to the ground conditions.

Below the longitudinal member 7, a suction channel 17 is mounted, which (see Figure 4 and Figure 5) protrudes into openings 23 of the frame elements RE and there fastened (not shown) is. In the suction channel 17 open spaced suction (smaller suction channels) 17 a, which lead to the respective combing unit X1 - X8, in which the combed out during the combing process components (noils, dirt, nits, etc.) sucked from the suction nozzle 17 a and the suction channel 17th be supplied. Via the suction channel 17, which communicates with a source of negative pressure, not shown, the aspirated components, e.g. fed to a central disposal facility.

The term "combing aggregate" is to be understood as meaning a device for combing out a pulp with subsequent banding of the combed fiber pulp As a rule, such a device consists of the following individual components, such as a nipper unit, round comb, fixed comb, pull-off cylinder or one with the round comb cooperating tear-off roller (Heilmann principle) with a subsequent A soldering device (eg a screening drum) and a nonwoven assembly with banding.

As can be seen from Figure 3, a plurality of frame shields RS are mounted on the side rail 7 at a distance G, which extend vertically upwards. As can be seen from the side view X of Figure 3 in Figure 4 and the enlarged partial view of Figure 5, the longitudinal member 7 has a U-shaped longitudinal profile U with a bottom wall U1. In extension of the bottom wall U1 adjoins the longitudinal profile U, a side wall SW, which extends vertically upwards in the mounted position.

In the resulting space 22 between the one leg of the longitudinal profile U and the side wall W is a lower part of the respective frame plate RS to rest on the side member 7. That is, the frame RS is located with one side on the side wall SW and with its base GF on the longitudinal profile U on. As schematically indicated (FIG. 5), boreholes 21 are provided in the area of the system from the respective frame plate RS to the longitudinal member 7, through which screws R protrude. The threaded portion (not shown) protrudes after mounting in threaded holes (schematically indicated) of the frame plate, whereby the frame plate RS is firmly connected to the side member 7. By this design, it is possible to position the respective frame RS during mounting exactly on the desired position on the side rail and secure. This allows easy and accurate pre-assembly of these parts.

In addition, and at a distance from the longitudinal member 7, a transverse web QS is provided in each case between two adjacent frame plates RS, which has a length which corresponds to the distance G. Thus, in the assembly of the individual frame signs RS on the longitudinal member 7 using the transverse webs QS, the frame signs are mounted in the vertical direction at an exact distance from each other. As indicated schematically in Figure 5, the transverse webs at their respective ends, with which they rest on the respective frame plate RS, laterally projecting tabs, via which they are fastened by means of fastening means (eg screws) P on the side plate SE , The side plate can be provided with corresponding stops or depressions, to position the transverse web for mounting exactly. The individual side plates SE are provided with a plurality of bearing receptacles 14 for receiving and supporting longitudinal shafts (eg the circular comb shaft 15 or the shaft of the brush roller 13). These longitudinal shafts are driven by drive elements, which are located in the drive unit A.

In the present exemplary embodiment, a lower tong plate 2 of a nipper assembly 10 ("tongs" for short) is fastened to the transverse webs Q. As can be seen from FIG. 5, spacer plates 25 can be provided between the surface of the transverse web QS and the lower nipper plate be to adjust their position with respect to the outer circle of the circular comb.

Above the lower tong plate 2, a pivotable frame 4 is mounted, which carries an upper tong plate 3, which together with the lower tong plate 2 can form a nip, as can be seen from the present view of Figure 5. The frame 4 is pivotally mounted about not shown means to a mounted on the frame signs RS axis 6. Alternatively, the frame 4 may be pivotally mounted directly on the tong plate 2. In the example shown, the fiber beard projecting beyond the clamping point is combed out by a combing segment of a circular comb 11. The tuft represents the free end of a fiber mass, which in the form of one or more slivers Z, which are withdrawn from cans KV, are fed in the conveying direction F to the nip of the tongs under the action of a feed cylinder 9. On the opposite side of the Kämmsegmentes a tear-off segment is attached, which cooperates with the tear-off of the combed end of the tuft with an undeliverable tear-off roller 12. The withdrawn fiber packets are then brought together (soldered) on a subsequent sieve drum 16 and formed into a sliver B on a unit 26 (with fleece funnel and calender roll).

A detailed description of such a device may e.g. B. also be taken from EP-2 350 361 A1.

The sliver B formed in this way is deposited on a conveyor table FB, on which it is transferred with further adjacent slivers of adjacent Kämmaggregate to a subsequent drafting unit S. The conveyor table FB may consist of a driven conveyor belt. The slivers can also in several, z. B. two superimposed layers are conveyed to the drafting unit.

As already described, the sliver formed on the drafting unit S is fed to a storage device, via which it is placed loop-shaped in cans.

To keep clean the circular comb 1 1, a brush roller 13 is disposed below the circular comb, which is mounted in storage units, which are integrated in the frame signs.

By attaching the bearing units 14 in the frame plates RS, it is possible after the pre-assembly of the frame elements RE with the side member 7, the frame signs RS and the transverse webs QS simply pushed through the required longitudinal shafts laterally including the elements to be mounted on the waves. The proposed structure of the frame for the longitudinal part LT thus enables a simple and quick installation and exact positioning of the individual units.

To increase the strength of the longitudinal member 7 and thus the entire longitudinal part LT transverse struts 18 are mounted within the U-shaped longitudinal profile. Seen in the longitudinal direction of the longitudinal member 7, the adjoining transverse struts 18 each extend at an opposite angle β to a horizontal plane, thus resulting in a honeycomb-shaped structure of the stiffeners, seen over the length of the U-profile. The individual stiffeners extend - seen transversely to the longitudinal direction of the longitudinal member - about the height of the free legs of the U-profile U.

This makes it possible to keep the dimension and the weight of the longitudinal member 7 as small as possible, since the strength is significantly increased by the attachment of the stiffeners, or the cross struts 18.

Claims

claims

A frame for a combing machine (1) comprising a plurality of combing units (X1 - X8) arranged side by side in series, which are mounted between two frame elements (RE) supported on the ground (O) and spaced apart (FA ) are connected to the ground extending longitudinal members (7), characterized in that a plurality at a distance (G) on the side member (7) fixed, substantially vertically aligned frame signs (RS) are provided and the combing units (X1 - X8) respectively are mounted between two adjacent frame signs (RS), which are detachably connected to each other via at least one, in the distance to the longitudinal beam (7) extending transverse web (QS).

2. Frame according to claim 1, characterized in that at the respective transverse web (QS) a lower tong plate (2) of a nipper unit (10) is fixed.

3. Frame according to claim 2, characterized in that the respective transverse web (QS) - seen transversely to its longitudinal direction and starting from a front operating side (VB) of the combing machine (1) at an angle (a) rising.

4. Frame according to one of the preceding claims, characterized in that the longitudinal carrier (7) consists of a longitudinal profile (U) provided with a, the longitudinal profile on one side projecting side wall (SW) and the frame plates (RS) in the free space (22) between the longitudinal profile (U) and the side wall (SW) abut the longitudinal profile and the side wall and are fixed in the area of the system.

5. Frame according to claim 4, characterized in that the longitudinal profile (U) is designed as a unilaterally open U-profile, the opening (OF) of the front

Operator side (VB) of the combing machine (1) points away and the side wall (SW) as an extension of the bottom wall (U1) of the U-profile (U) vertically upwards stretches.

6. Frame according to one of claims 4 to 5, characterized in that the longitudinal profile (U) of the longitudinal member (7) is provided with transverse to the longitudinal direction of the longitudinal profile transverse struts (18).

7. Frame according to one of the preceding claims, characterized in that the longitudinal carrier (7) and / or the frame plates (RS) are produced as a casting, preferably made of gray cast iron or nodular cast iron.

8. Frame according to claim 7, characterized in that the frame elements (RE) are made of gray cast iron or nodular cast iron.

9. Frame according to one of the preceding claims, characterized in that the frame elements (RE) with passage openings (23) are provided, in which at least one, longitudinally and parallel to the longitudinal member (7) arranged suction channel (17) protrudes.

10. Frame according to claim 9, characterized in that the suction channel (17) with at least one, between the frame elements (RE) with spaced-apart, suction nozzle (17a) is provided, which connected to the individual combing units (X1 - X8) are.

11. Frame according to one of the preceding claims, characterized in that the frame plates (RS) with bearing receivers (14) for the storage of longitudinal shafts (15) are provided.

12. Combing machine with a frame according to one of the preceding claims.