JP6126892B2 - Textile machine having at least two functionally identical draft systems - Google Patents

Description

  The present invention relates to a textile machine having at least two functionally identical draft systems for individually stretching textile materials. Each of the individual draft systems includes at least two roller pairs that are alternately arranged in the direction of fiber material transport, each roller pair including a lower roller and an upper roller corresponding to the lower roller, The lower roller forms a clamping line for the fiber material with the corresponding upper roller, and each draft system has one first adjusting device and at least one second adjusting device. Also, at least one roller of the first roller pair of each draft system is displaceable by a first adjustment device, and at least one roller of the second roller pair of each draft system is a second adjustment device. Can be displaced in the conveying direction of the fiber material, whereby the spacing of the clamping lines between the individual roller pairs can be adjusted.

  For example, common fiber machines are used, among other things, to draw or make uniform the fiber material that may exist as fiber bundles. In addition to the above-described draft system in which drawing is performed, it is also possible to provide one or more spindle units that can spin a drawn fiber material to form a twisted yarn.

  In order to adapt the drafting system of such a textile machine to the fiber material to be drawn, in particular before operating the drawing machine to match the average, minimum or maximum length of the fibers forming the fiber material. In general, the distance between the clamp lines formed by each of the roller pairs is adjusted. However, since adjustment is always performed individually for each draft system, there is a problem that adjustment is difficult and time-consuming. Alternatives have already been proposed in which a gearbox is placed between each pair of rollers to adjust all the displaceable roller pairs of the draft system with common adjustment elements, but , Intermediate roller pairs, and drawer port roller pairs), the change in the clamp line spacing between the individual roller pairs occurred simultaneously, but was always a change in the ratio defined relative to each other.

  Accordingly, it is an object of the present invention to provide a textile machine having a plurality of draft systems that overcomes the disadvantages described above.

  The object of the invention is achieved by a textile machine having the features of claim 1.

  According to the invention, the textile machine according to the invention is such that each of the first adjustment devices of the individual draft systems is connected to each other by a first coupling element, and each of the second adjustment devices of the individual draft systems is the first. The two coupling elements are connected to each other. Thus, the above-described device adjusts the first adjuster of one draft system to allow adjustment of the first adjuster of another draft system, and adjusts the second adjuster of one draft system. Allows adjustment of the second adjusting device of the draft system.

  In other words, the distance between the corresponding clamp line intervals (i.e., for example, in this case, all the take-in roller pairs and all the intermediate roller pairs ("second roller pairs") that form the "first roller pair") Or the spacing of the clamp lines between all intermediate roller pairs and all discharge roller pairs (of all draft systems) is adjusted simultaneously.

  For example, moving the take-up roller pair of one draft system will cause movement of all the take-up roller pairs of all other draft systems at the same time. Further, moving the intermediate roller pairs of one draft system causes displacement of all the intermediate roller pairs of the other draft systems.

  As a result, all first roller pairs and / or all second roller pairs of all draft systems can be displaced uniformly (i.e., simultaneously at the same distance). Thus, all draft systems can be adjusted to fit the new fiber material in exactly the same way without creating differences between the individual draft systems. In particular, the rollers separated from each other and independently displaced by corresponding adjusting devices by connecting all the first roller pairs and all the second roller pairs by means of individual connecting elements, respectively. Allows the type (ie, take-up roller, discharge roller, intermediate roller, etc.) to be displaced. Thus, if the drafting system has a third roller pair in addition to the first and second roller pairs, the first and second roller pairs are mutually displaced by individually displacing the first and second roller pairs. And the distance between the second and third roller pairs can be individually adjusted. At the same time, in this way the corresponding roller pairs of all other draft systems are adjusted so that each of the clamp line distances can be adjusted to be reproducible with very high accuracy while saving time. Become.

  Also, the present invention is preferably implemented as part of a double head drawing machine. That is, two take-up roller pairs (take-in roller pairs of the first draft system and the second draft system) are connected to each other by the first connecting element, and the two intermediate roller pairs are connected to each other by the second connecting element. The In particular, there is no corresponding connection between the take-in roller pair and the intermediate roller pair, so that one type of roller pair can be displaced independently of the other type of roller pair. In this way, the mutual distance between each of the individual type roller pairs can be individually adjusted from the corresponding discharge roller pair or from each other.

  Here, it is advantageous if each individual adjusting device comprises a bearing device that is displaceable in the conveying direction of the fiber material and supports the rollers displaced by the adjusting device. In this case, the roller supported within the bearing device is displaced by displacing the corresponding bearing device. In this case, the bearing device receives only the lower roller, only the upper roller, and possibly the entire roller pair. Also, these rollers are rotatably supported in corresponding bearings, and the displacement of the bearing device during adjustment of the draft system preferably occurs in each case perpendicular to the axis of rotation of the rollers.

  The connecting elements are each connected to an endless chain or endless so that one connecting element is operably connected to all first adjusting devices and one connecting element is operably connected to all second adjusting devices. It is furthermore advantageous to be implemented as a belt. Thus, the adjusting device comprises one or more adjusting elements that connect these adjusting devices to the connecting elements. If one of the adjusting elements is displaced, then each of the connecting elements is replaced by an adjusting element (such as all so-called first adjusting elements connected to the first roller pair in each case, such as a take-up roller pair). Induces the displacement of all other adjustment elements of the group. In each case, the adjustment element can be displaced manually (for example by means of a removable crank that can be connected to the adjustment element) or by an electrical drive. Multiple adjustment elements in the adjustment element array can be designed so that the adjustment elements can be adjusted by a single operator with a corresponding tool (eg, the aforementioned crank), especially if manual adjustment capability is desired. is there. Thus, the textile machine of the invention preferably comprises an adjustment device having a plurality of manually adjustable adjustment elements, such adjustment devices being arranged on each side of the textile machine or in such a location. It can be accessed from. In this case, the operator can adjust all the adjusting elements of the adjusting device from any side of the textile machine.

  It is further advantageous if the individual bearing devices each comprise at least two profiles that are displaceable in the conveying direction and preferably run parallel to one another. Here, each profile is operatively connected to one of the connecting elements by means of an adjustment element. The individual bearing devices and the rollers supported therein are reliably guided in this case by two elements (of profile shape). As a result, the concern about the tilting and twisting of the roller is almost eliminated.

  It is further advantageous if the adjusting elements of each bearing device are connected to each other and to the adjusting elements of the bearing device of at least one further draft system by one of the connecting elements. Thus, it is conceivable that each bearing device has two adjusting elements (preferably each connected to a profile), but these two adjusting elements can only be displaced jointly by a connecting element by connection. . These connecting elements thus ensure that all the adjusting elements of each adjusting device of the draft system are displaced simultaneously. However, these connecting elements also ensure that all adjusting devices that simultaneously displace the same type of roller are displaced simultaneously, even if a single adjusting element of the aforementioned adjusting device is displaced.

  It is particularly advantageous that the adjusting elements each include a gearbox that converts the rotational movement of the adjusting element into a linear displacement of a bearing device operatively connected to the adjusting element. In this case, the adjustment element is guided to a rotational movement that is easily adjusted by a crank, ratchet, wrench or other manual or electrical drive element. This rotational movement results in the desired linear displacement of each of the rollers (pairs) perpendicular to the conveying direction of the fiber material, or to the clamping line.

  It is further advantageous that the gearbox includes an adjusting wheel connected to one of the connecting elements and a screw spindle connected to the adjusting wheel. The screw spindle in this case is preferably screwed into one screw of the bearing device, and rotation of the adjusting wheel causes rotation of the screw spindle and linear displacement of the bearing device. The bearing device can in particular comprise one or more individual screw blocks with internal threads, which can also be connected to the profile shown. It is more sensible to guide the screw spindle to the guide in order to make the adjusting device easily operable.

  It is further advantageous that the adjustment element is implemented as an adjustment wheel and that the adjustment wheels of all the first and / or second adjustment devices are on a common surface. The adjusting wheel can be implemented as either a chain gear or a belt pulley. The location in one plane has the advantage that the adjustment elements to be connected can be connected to each other, for example by means of a gear rack (= connection element).

  It is also very advantageous for this plane to be orthogonal to the axis of rotation of the adjusting wheel arranged in the plane. In this case, the connecting element can be linearly displaced at least in the region of the adjusting wheel. This is because the linear displacement results in a rotational movement of the adjusting wheel, which in turn results in the rotation of the screw spindle connected to the adjusting wheel due to the relative displacement of the segments of the connecting element corresponding to the adjusting wheel in contact with each other. This is because movement occurs.

  It is also advantageous that the connecting elements are each implemented as an endless chain or endless belt, and that the individual connecting elements are associated with deflection elements that keep these connecting elements deflected from a linear path and continuously under tension. is there. Thus, adjustment elements that are in contact with the connecting elements in the form of adjustment wheels of all first adjustment devices or of all second adjustment devices are arranged next to each other in front view of the draft system. It is advantageous. When an endless chain or endless belt is arranged around the corresponding associated adjustment wheel, the two outermost adjustment wheels will contact the chain or belt over its half circumference while in between The arranged adjusting wheel contacts only in the tangential direction. Accordingly, the risk of slippage between the intermediate adjustment wheel and the corresponding connecting element increases. The arrangement of the deflection elements in the adjustment wheel area arranged between each other of the outer adjustment wheels, in particular, is such that the intermediate adjustment wheel not only contacts the tangential direction of the chain or belt, but also over a specific circumferential range. This risk can be successfully prevented.

  It is further advantageous that the adjusting device comprises an adjusting element in the form of an adjusting wheel connected to the connecting element and is displaceable by the adjusting element. Here, the connecting element extends between the deflection element and in each case an adjustment wheel arranged adjacent to the deflection element. This ensures that the connecting element is pressed in the direction of the adjusting element arranged next to it. Thus, the risk of slip is greatly reduced. When an endless belt is used as the connecting element, the inner surface of the belt surrounds the inner surface on which the adjusting element is arranged. The outside of the belt is contacted by at least one deflection element that deviates from the path actually defined by the adjusting element and presses the belt towards the inner surface, ie towards at least one of the adjusting elements.

  It is further advantageous that the deflection element comprises a cylindrical segment. Here, the surface of the cylindrical segment contacts one of the connecting elements. The aforementioned segments ensure that a low friction contact occurs between the deflection element and the coupling element when the illustrated belt or chain is used. The central axis of the cylindrical segment herein preferably extends perpendicular to the direction of movement of the belt or chain.

  It is also very advantageous to be able to rotate the cylindrical segment about the axis of rotation in order to further reduce the friction between the coupling element and the deflection element. In this case, the rotational axis of the deflection element preferably extends along the central axis of the cylindrical segment indicated above.

  Advantageously, at least one deflection element of each coupling element is displaceably supported so that the tension of the corresponding coupling element can be changed by displacing the deflection element. The deflection element is pressed in the direction of the coupling element, for example by a spring. For example, it is conceivable to design the deflecting element so that it can be adjusted by a spindle or a lever device, so that the relative position relative to the connecting element can be changed. For example, if an endless belt is used, its tension can be further increased by displacing the deflection element after a certain period of operation.

  Further advantages of the invention are described in the following examples.

It is a side view which shows the textile machine by this invention. 1 is a plan view showing a segment of a textile machine draft system according to the present invention; FIG. 1 is a plan view showing a segment of a textile machine draft system according to the present invention; FIG. 1 is a plan view showing a segment of a textile machine draft system according to the present invention; FIG. 1 is a side view showing a segment of a textile machine draft system according to the present invention; FIG. FIG. 3 is a cross-sectional view taken along line A-A ′ of FIG. 2. 1 is a front view showing segments of a textile machine draft system according to the present invention; FIG. FIG. 3 shows the connection of a plurality of adjusting devices of a drafting system for a textile machine according to the invention.

  As previously mentioned, for clarity, reference is made to only one of a plurality of identical components or objects (eg, bolt 25 in FIG. 7) in a diagram illustrating a plurality of identical components or objects. It may be numbered.

  FIG. 1 draws (or evenly) a twisted fiber material 2 having a double-head drawing machine, i.e. two functionally identical draft systems 1 arranged next to each other. It is a side view which has shown roughly the drawing machine for making. During operation of the drawing machine, a fiber material 2 (for example in the form of a fiber band) is taken from each of a plurality of so-called cans 20 and sent to the corresponding draft system 1 of the drawing machine. Here, the individual draft systems 1 of the double head drawing machine are alternately arranged when the drawing is viewed from the plane. This applies to these cans 20 as well, since at least one row of cans 20 exists for each draft system 1.

  The draft system 1 generally consists of three or more roller pairs 3, each roller pair 3 including a lower roller 4 and an upper roller 5 that causes stretching and makes the fiber material 2 uniform at different rotational speeds. In the illustrated embodiment, the draft system 1 includes a take-in roller pair (first roller pair 3a), an intermediate roller pair (second roller pair 3b), and a discharge roller pair 3c. The upper and lower rollers 4, 5 each form a clamping line 6 (also see FIG. 6) for the fiber material 2, which is parallel to the axis of rotation of the individual rollers 4, 5. It extends to.

  Downstream of the draft system 1, the drawn fiber material 21 is finally supplied to the rotary coiler (winding machine) plate 19 by the calender roller pair 22 and laid in a loop shape in the empty can 20.

  In order to be able to adjust the drafting system 1 to match the fiber material 2 to be drawn and to the length of each individual fiber, the spacing of the clamp lines is adjusted and the pair of take-in rollers and the middle It is necessary to be able to adjust the distance between each of the roller pairs and the distance between the intermediate roller pair and the discharge roller pair. Thus, each individual draft system 1 allows at least one first roller pair 3a (such as a take-up roller pair) and one second roller pair 3b (such as an intermediate roller pair) in the conveying direction of the fiber material 2. That is, it is provided that at least one first adjusting device 7 and one second adjusting device 8 are included in order to be displaceable perpendicular to the clamping line.

  A possible embodiment of the corresponding adjusting device 7, 8 is schematically shown in FIGS. 2-7, which is a front view showing two segments of the draft system segment shown in FIGS. FIG.

  As shown in the figure, the rear discharge roller pair 3c (conveying direction of the fiber material 2: from right to left in FIG. 2) is fixedly supported on the base frame or the like, although not shown in detail. On the other hand, the first roller pair 3a can be displaced in the transport direction by the first adjusting device 7, and the second roller pair 3b can be displaced in the transport direction by the second adjusting device 8.

  In order to allow independent displacement of the roller pairs 3a, 3b, the upper and lower rollers 5, 4 (or only one of the two) are rotatably supported in the bearing device 10. Each of the two bearing devices 10 is also connected to the profile 12 (preferably in the region of the end faces of the rollers 4, 5), and the displacement is associated with the associated bearing device 10 and thus the rollers supported therein. 4, 5 displacements occur. Although it is also conceivable to displace the bearing device 10 by means of the profile 12, using two profiles 12 arranged parallel to each other means that the rollers 4 and 5 are positioned parallel to each other even during the execution of the displacement. This has the advantage that tilting is prevented.

  Each profile 12 is also coupled to a screw block 14. The screw blocks 14 of the two adjusting devices 7, 8 (preferably two profiles 12 and two screw blocks 14 are provided for the adjusting devices 7, 8) are preferably one on the other. Has been placed. Corresponding positions are shown in FIGS. 5 and 7 (bearings 26 which will be described later are omitted in FIG. 7 so that the profile 12 and the screw block 14 connected thereto can be seen for example by bolts 25). )

  Next, one screw spindle 16 protrudes into each of the screw blocks 14 (or to an internal thread protruding into the screw block 14), and the spindle can be guided into the fixed bearing 26, for example. For example, it can be rotatably and fixedly connected to an adjustment element 13 in the form of an adjustment wheel 15 (gear, gear, belt pulley, etc.). The screw spindle 16 and the screw block 14 in this case form a drive transmission type that can convert the rotational movement of the screw spindle 16 into a linear displacement of the screw block 14.

  When one screw spindle 16 of the bearing device 10 is rotated, the corresponding screw block 14 is displaced, so that the profile 12, the bearing device 10 connected thereto, and finally supported in the bearing device 10. The rollers 4 and 5 are displaced. As shown schematically in FIGS. 2 to 4, the operation of the corresponding adjusting element 13 thus makes it possible to adjust the first roller pair 3 a independently of the second roller pair 3 b, and thus correspondingly. The distance of the clamp line of the draft system 1 can be individually adapted.

  In fact, it is possible to individually displace the roller pair 3 of the draft system 1 from each other by the elements mentioned above. However, in order to ensure the same degree of stretching in the fiber material 2, the disadvantage is that the adjustments made to one draft system 1 need to be carried out in exactly the same way for the other draft systems 1 as much as possible. There is.

  Accordingly, the present invention provides that each first adjustment device 7 of each individual draft system 1 is connected to each other by a first connecting element 9a, and each second adjustment device 8 of each individual draft system 1 is second. It is suggested that they are connected to each other by the connecting element 9b. In this way, the above-described device results in the adjustment of the first adjustment device 7 of the other draft system 1 by adjusting the first adjustment device 7 of the draft system 1, and the second adjustment device 8 of the draft system 1. To ensure that the adjustment of the second adjusting device 8 of the other draft system 1 is effected.

  One possible means of connecting the individual adjusting devices 7, 8 according to the invention is shown in FIG. In principle, FIG. 8 shows a view from FIG. 7, and components not relevant to the gist of the present invention are omitted in FIG. 8 (therefore, the connection shown in FIG. As shown, it is not limited to textile machines).

  Simultaneous displacement of all identical roller pairs 3 (or only their upper or lower rollers 4, 5), ie, all first roller pairs 3a or all second roller pairs 3b of the corresponding textile machine In order to make this possible, the adjusting elements 13 of the first adjusting devices 7 of all draft systems 1 and the adjusting elements 13 of the second adjusting devices 8 of all draft systems 1 are connected to one another. This connection can be realized by, for example, an endless (toothed) belt 11 (or a chain, a band, etc.). When using a toothed belt or chain, it is particularly recommended that the adjustment element 13 is implemented as a toothed ring, which ensures a shape fit between each of the coupling element 9 and the adjustment element 13 to prevent slippage. Is prevented.

  When one of the adjusting elements 13 is guided into rotational movement by one detachably connected crank 24 (or electric drive) of the adjusting element 13, the connecting element 9 is connected to the connecting element 9 by the other Rotational motion is transmitted to the adjusting element 13. As a result, all the same clamping line distances of all draft systems 1 (ie between all take-in roller pairs and all intermediate roller pairs or between all intermediate roller pairs and all discharge roller pairs). Can be adjusted by actuating one of the corresponding adjusting elements 13.

  It is further advantageous that each coupling element 9 is associated with one or more deflection elements 17 in order to prevent slippage of the coupling elements 9 corresponding to the individual adjustment elements 13. The deflecting element 17 can be implemented, for example, as a rotatable pin that includes a cylindrical segment 18 that deflects the endless belt 11 used, up or down from a straight, preferably horizontal path. Thus, the connecting element 9 is kept under tension, and the contact area between the adjusting element 13 and the connecting element 9 is increased when a belt or chain is used.

  One or more deflection elements 17 of the coupling element 9 can be adjusted by a lever device 23 (for example by applying a spring load) in order to maintain the desired tension of the coupling element 9 or to allow tightening. It is finally advantageous to be supported. However, the lever device 23 is removed as necessary.

  The invention is not limited to the exemplary embodiments described. Even when described in different embodiments exemplarily, as long as it is a combination of features, the context of the claims can be changed. Thus, individual draft systems can also include more than four roller pairs. Also, more than two of the draft system roller pairs may be displaceably supported. It is also conceivable to have a draft system of three or more textile machines. That is, there are significant advantages to using the present invention for a double head drawing machine.

1: draft system 2: fiber material 3a: first roller pair 3b: second roller pair 3c: discharge roller pair 4: lower roller 5: upper roller 6: clamp line 7: first adjusting device 8: first 2 adjusting device 9a: first connecting element 9b: second connecting element 10: bearing device 11: endless belt 12: profile 13: adjusting element 14: screw block 15: adjusting wheel 16: screw spindle 17: deflection element 18: cylindrical segment 19: coiler plate 20: can 21: drawn fiber material 22: calender roller pair 23: lever device 24: crank 25: screw 26: bearing

Claims (14)

A textile machine having at least two functionally identical draft systems (1) for individually stretching the textile material (2),
The individual draft systems (1) each have at least two roller pairs (3) arranged alternately in the conveying direction of the fiber material (2): the lower roller (4) and the lower roller (4). A corresponding upper roller (5),
Each said lower roller (4) together with said corresponding upper roller (5) forms a clamping line (6) to said fiber material (2);
Each draft system (1) has a first adjustment device (7) and at least one second adjustment arrangement (8), and a first pair of rollers ( At least one roller (4, 5) of 3a) is displaceable by said first adjusting device (7) and at least one roller of a second roller pair (3b) of said respective draft system (1) (4, 5) can be displaced in the conveying direction of the fiber material (2) by means of the second adjusting device (8), whereby the spacing of the clamp lines between the individual roller pairs (3). Is adjustable , and the first adjusting device (7) of each individual draft system (1) is connected to each other by a first connecting element (9a), the individual draft System (1 Each said second adjusting device (8) is connected to each other by a second connecting element (9b), thereby adjusting the first adjusting device (7) of the draft system (1) The first adjusting device (7) of the other draft system (1) is adjusted by adjusting the second adjusting device (8) of the draft system (1). The second adjusting device (8) of 1) is adjusted,
Textile machinery. Each of the individual adjusting devices (7, 8) is a bearing device (10) displaceable in the conveying direction of the fiber material (2), and is displaced by the respective adjusting device (7, 8). The rollers (4, 5) are supported, thereby displacing the corresponding bearing device (10), thereby causing displacement of the rollers (4, 5) supported inside the bearing device (10). Including a bearing device (10),
The textile machine according to claim 1. Said connecting elements (9) are each implemented as an endless chain or an endless belt (11), each first connecting element (9a) being functionally connected to all first adjusting devices (7), A second connecting element (9b) is operatively connected to all the second adjusting devices (8),
A textile machine according to one or more of the claims 1 to 2. The individual bearing devices (10) each comprise at least two profiles (12) displaceable in the conveying direction of the fiber material (2) and preferably extending parallel to each other, each of the profiles being an adjustment element Functionally linked to one of the coupling elements (9) by (13),
A textile machine according to one or more of the claims 2 to 3. The adjusting elements (13) of each bearing device (10) are connected to one another and one of the connecting elements (9) of the bearing device (10) of at least one further draft system (1). Also connected to the adjustment element (13),
The textile machine according to claim 4 . Each of the adjusting elements (13) can convert the rotational movement of the adjusting element (13) into a linear displacement of the bearing device (10) operatively connected to the adjusting element (13). including,
A textile machine according to one or more of the claims 4-5. The gearbox includes an adjustment wheel (15) connected to one of the adjustment elements (9), and a screw spindle (16) connected to the adjustment wheel (15). 16) is screwed into one screw (female screw) of the bearing device (10), and the rotation of the adjusting wheel (15) is the rotation of the screw spindle (16) and the linear displacement of the bearing device (10). Produce
The textile machine according to claim 6 . The adjusting element (13) is implemented as an adjusting wheel (15), the adjusting wheels (15) of all the first and / or second adjusting devices being placed in the same plane,
A textile machine according to one or more of claims 4 to 7. The same surface extends perpendicular to the rotation axis of the adjusting wheel (15) disposed therein,
The textile machine according to claim 8 . The connecting elements (9) are each implemented as endless chains or endless belts (11), deflection elements (17) are assigned to the individual connecting elements (9), and the connecting elements (9) by the deflecting elements (17). ) Is deflected out of the straight path and kept under tension,
A textile machine according to one or more of the claims 1-9. The adjusting device (7, 8) includes an adjusting element (13) in the form of an adjusting wheel (15) connected to the connecting element (9) and displaceable by the connecting element (9). 9) extends between the deflection element (17) and the adjusting wheel (15) arranged adjacent to the deflection element (17) in each case,
The textile machine according to claim 10 . The deflection element (17) comprises a cylindrical segment (18), and in each case the surface of the cylindrical segment (18) is in contact with any one of the coupling elements (9);
A textile machine according to one or more of the claims 10 to 11. The cylindrical segment (18) can rotate about an axis of rotation;
The textile machine according to claim 12 . At least one deflection element (17) of each of the coupling elements (9) is supported displaceably so that the tension of the corresponding coupling element (9) can be changed by displacing the deflection element (17). ing,
A textile machine according to one or more of the claims 10 to 13.