DE3018950A1 - Mechanical leasing - uses cheap hooked blade and separately adjustable lease rods - Google Patents

Abstract

The hooked blades (13) lie parallel to the plane of the warps (F1,F2, etc.) in the unit (V) to form a lease, in a sizing or similar textile machine, but sliding across their direction of travel. The individual lease rods (T9,T10,T11,etc.) can be adjusted (60) to be raised or lowered separately from each other. The assembly does not require expensive components, and is easily manned by relatively unskilled operatives. The mounting guide (57) for the hooked blades (13) can slide laterally through an adjustment unit. The adjustment components (20-23) for the lease rod setter (60) and/or the hooked blade guide are operated pneumatically, with a common control (75) to synchronise their operation, using a single control button (76). The hooked blade guide (57) is on a roller mounting to give height adjustment in relation to the machine frame (19). The roller supports for the hooked blades (13) are also adjustable for width. Limit switches deliver impulses to the control unit (75) when the hooked blade guide (57) reaches the ends of its reciprocating path. There are mounting heads on each lease rod adjuster (60) for the ends of the lease rods (T9,T10,etc.) with a grip end on the lease rod (T) and a lock to bond them together, with the grip ends and the mounting heads located on the operating side of the machine. Paired guide rods are fitted to the lease rod adjuster (60) with a rack and two pinions to engage in the teeth of the guide rods.

Description

Description The invention relates to an apparatus and a method for the automatic formation of a crosshair on a textile machine, in particular Sizing machine or assembly line.

The device has a hook sheet and note trees od. Like. Sub-rods to be assigned.

To properly weave chains on the loom you need a crosshair, also called "read" in specialist circles.

Auxiliary devices or mechanical devices are already known to form a crosshair, for example on sizing machines. These previously known However, auxiliary devices or devices still have considerable disadvantages For example, an auxiliary device has been used in practice for a long time, which includes hook blades and partial rods. However, this auxiliary device must be of Hand operated by two people; this requires the lifting of the rods against the tension of the overlying warp threads a high expenditure of force by the Operators. The formation of the crosshair is also relatively demanding a lot of time. As a rule, there is an even distance between the sets of threads not guaranteed in the area of the hook blade with these auxiliary devices.

An apparatus and a method for formation are also already known a crosshair with two different reeds in the course of the thread sheet are connected, both in the vertical direction and by a division in are arranged to be displaceable relative to one another in the horizontal direction (see. e.g. DE-OS 26 11 353). The disadvantage of this device and the one to be carried out with it In particular, the procedure consists in the fact that the arbitration etc.

existing hook blades cannot be used in this device but have bought new reeds specially tailored to the device Need to become. This is particularly complex. The procedure according to the the latter device on the operation of the introduced auxiliary device considerably, so that it is not easily understandable for the operators is.

This in turn is disadvantageous, especially if an accident occurs, because this procedure has few options in the event of an accident manual intervention offers; However, incidents cannot be avoided in practice.

There is therefore the task of one of the manufacturing and operating costs to create a simple device or a corresponding method in which the Disadvantages of the previously known devices and methods are largely avoided. In particular, the already existing hook blade equipment, which is very expensive in its entirety remain usable; furthermore, most of them should be by semi-skilled workers Provided operators without significant retraining the working method according to the invention still have a good overview and can easily intervene, especially in the event of a malfunction and usually one operator suffice.

The solution according to the invention consists in a device as described at the beginning mentioned type in particular in the fact that previously known hook blades are provided for her are, in a known manner, parallel to the plane of the warp thread sheet and across to whose direction can be shifted, and individual sub-rods each in a mechanical Adjusting device can be raised and lowered.

With such a device, a single operator can under Use of the so far already in the factories existing hook leaves form a crosshair without the operator doing any special physical work needs to perform. The workflow is similar to that of the previously known one Auxiliary device and also the possibility of manual intervention in the event of malfunctions remains. The device is simple in its structure and overall expenditure.

According to an advantageous development, the device has a Holding and guiding device for the hook blades.

These are preferably by means of a hook blade adjustment device movable. In this way, the existing hook sheets can easily be inserted into the Device, even if they have different dimensions, for example. Furthermore, the adjustment movement for the hook blades can also be carried out mechanically will. In tests, pneumatic actuators have proven to be advantageous for the Partial rod adjustment devices and / or the hook blade adjustment device highlighted, although, for example, mechanical or hydraulic adjustment elements are also possible.

An advantageous development of the invention is that the Actuators for the individual sub-rods and expediently for the hook blades are controlled synchronously by a control device. So you can open and Control the downward movement of the partial rods individually (by hand), totaling the partial rod movement automatically control your workflow and then, for example, the adjustment movement of the hook blades by hand or all these movements are coordinated run in a controlled manner. This possibility of semi- and fully automatic movement sequence the device and the method is not just for a very easy familiarization of the operating forces, but also enables, e.g. in the event of malfunctions to carry out individual work steps by hand or to control them by hand.

The invention also relates to a method of machining of a crosshair on a textile machine, in particular Sizing machine or assembly machine, using the device according to the invention. the previously known working methods have, as partially already mentioned above, Mainly the following disadvantages: The imported one, with one and only across the thread sheet Slidable hook blade working method requires a lot and sometimes powerful Manual work. The other, with two rivets that can be moved vertically and horizontally to each other working process cannot be broken down well into sub-work steps that need to be carried out can also be carried out and / or corrected individually, if necessary manually, which is the case with Accidents is desirable.

Accordingly, there is the object of a working method of the aforementioned Art to create that both consistently at least largely fully automatically, in the If necessary, but can also work in partial work steps. His way of working is also intended for semi-skilled operators, especially those who practice in the Working procedures with the previously known hook blades are incorporated, easily manageable stay.

The solution according to the invention consists in the aforementioned methods in particular in the following process steps: a) The hook blade is in a first Moved to the end position and then the first partial rod raised by machine, then the hook blade is moved to its second end position and then the second Partial rod lifted by machine, then the hook blade is again in its first End position shifted, etc. until a first compartment is formed from the warp threads; legs first partial cord or the like. is placed in the compartment; c) then the thread bundles lowered by means of the sub-rods that are mechanically adjusted downwards; d) the sub-work steps of process step a) are repeated with the proviso that the hook blade each in the other end position, with a second subject is formed by the warp threads; e) a second partial cord or the like is inserted into the Second compartment inserted, with at least two partial work steps synchronized by machine being controlled.

Such a working method can create a crosshair on a textile machine are essentially machined. If one interprets the control process, for example, that there is enough time to insert the two dividing cords into the two compartments, the process can be controlled fully automatically. But you can also choose only individual work steps, for example the movement of the partial rods for the Allow the creation of the first or the second subject to start automatically and synchronously. If necessary, the operator can also have a good control option create in that the adjustment movement for the hook blade is still carried out by hand or at least controlled by hand.

Additional developments of the invention are in the claims as well explained in more detail in the following description. It show, partly in a highly schematic way and on different scales: FIG. 1 shows a side view of the device with a part of the Zettelbaumgerüstes, Fig. 2 is a partial front view of the device with a view of the hook blades and their holding and guiding device, FIG. 3 a Side view of the holding and guiding device for the hook blades accordingly the viewing direction B in Fig. 2, Fig. 4 is a partial front view of a single hook blade in a somewhat more detailed representation, FIG. 5 shows one of FIG. 4 corresponding Representation of a double hook blade, FIG. 6 a rear view of the adjusting device for the partial rods corresponding to the direction of formation C in FIG. 1, FIG. 7 is a side view the device according to Fig. 6, Fig. 8 a schematic representation of the mode of operation of the device when forming a crosshair after the partial rods have been lifted for the first time with a side view of the thread sheets similar to FIG. 1, FIG. 9, the position of the individual Sheets of threads within a single hook blade shown schematically accordingly the thread position according to FIG. 8, FIG. 10 shows a representation corresponding to FIG. 8 after the second lifting of the partial rods, FIG. 11 is a simplified front view shown single hook blade and the associated thread sheets according to the Position according to Fig. 10 and Fig. 12 corresponding to a greatly enlarged detail the point circled at D in FIG.

In Fig. 1 is a generally designated V device for mechanical Forming a crosshair shown, which is attached to a Zettelbaumgerüst G in the direction of travel of the individual warp thread sheets F, which will be described in more detail below. The device V is, for example, part of a sizing machine (not shown in detail). From slip rollers 5, 6, 7 and 8 (see. Fig. 1, 8 and 10) the thread sheets F are over Partial rods generally designated T and guided through a hook sheet 13 and brought together on a guide roller 15. The operation of the device as well as the Process steps necessary for shedding in the thread sheets F of the warp threads and then leads to the formation of a crosshair, is followed by a simplified Example explained on the basis of FIGS. 8 to 12.

This is done using the exemplary embodiment of a single hook blade 13, as shown in FIG. 4 and very schematically in FIGS. 9 and 11. Corresponding the single hook blade 13 is an even number of note trees 5 to 8 and accordingly four yarn sheets F1 to F4 are provided. Of course you can with a substantial larger number of thread sheets F 1 to F x and with an odd number of Note trees 5, 6, 7 etc. and work accordingly with double hook blades 13 a, as indicated in FIG. 1 and FIG. 5, respectively.

According to FIGS. 8 and 9, the hook blade 13 is according to the double arrow Pf 1 to move transversely to the thread sheets F1 to F4 in two end positions (see also double arrow Pf 1 in Fig. 2).

The thread bundles F1, F2, F3 and F4 are from the note trees 8, 6, 7 and 5 withdrawn, each guided over the partial rods T 9, T 10, T 11 and T 12 and passed through gaps 50, 51, 52, etc. of the hook sheet 13 (Fig. 9). These are provided with hooks 53 rods 54 of the known hook sheet 13 formed. This is first brought into a first end position so that the Sheets of threads F1 to F4 on the sides of the gaps opposite the hooks 53 Apply 50, 51, 52, etc.; that is the left in Fig. 9 and the observer in Fig. 8 facing end position. Then the partial rod T 9 (see. Fig. 1, 8 and 9) is raised, so that all of the thread group F 1 belonging threads 1 on the upper cover 55 of the hook blade 13 create. Then this is transverse to the thread sheets F1, F2, etc. by the viewer shifted away, so in the right end position in Fig. 9. Accordingly, lay down the threads 2, 3 and 4 of the remaining sets of threads F2, F3 and F4 to the hooks 53 provided sides of the hook sheet 13. When lifting the partial rod T 10 will be accordingly, all of the threads 2 of the thread sheet F2 are caught in the hook 53. Thereafter is the hook sheet 13 from its last occupied second end position back into its first end position, which is closer to the viewer of FIG. 8, and the partial rod T 11 lifts then the thread group F3 until its individual threads 3 reach the cover 55 of the hook blade 13. Then this becomes transverse again shifted into its second end position remote from the viewer of FIG. 8. With the partial rod T 12 then the thread sheet F4 is raised so that the individual threads 4 in the Catch hook 53. Figures 8 and 9 show this state. Between the The hook sheet 13 and the deflecting roller 15 are made up of the thread sheets F1 and F3 on the one hand and the thread sheets F2 and F4, on the other hand, the shed 16 is formed.

A dividing cord 14, e.g. with the help of a rod provided for this purpose. Then the partial rods T 9 to T 12 and lowered with them the associated thread sheets F1 to F4. After that, the the process described above in connection with FIGS. 8 and 9 is repeated, however with the proviso that the hook blade 13 is in each case in the other than that described above End position is. The second subject 16 a is formed, as it is in particular 10 and 11 is apparent. First, the hook blade is in its second, the viewer of Fig. 8 or

Fig. 10 removed end position. Then the partial rod T 9 with the thread sheet F1 raised, so that their individual threads 1 in the hook Catch 53. Then there is a shifting of the hook sheet 13 in its first, the Viewer of Fig. 8 or 10 near the end position. Thereupon the partial rod 10 with the associated thread sheet F2 raised so that the associated individual threads 2 to the Cover 55 of the hook sheet 13 come to rest. This process is then carried out accordingly repeated, so that a second subject 16 a from the thread sheets located up there F 2 and F 4 on the one hand and the thread sheets F1 and F3 located there below on the other hand forms (see. Fig. 10 and 11).

In this subject 16 a, the second part cord 17 is now inserted and the desired crosshair 18 is produced.

In Fig. 1, the structure of the device F is drawn in somewhat more detail; the four uppermost thread sheets F 1 are in each case to F 4 and the sub-rods T 9 to T 12 assigned to them according to the illustration Fig. 8 to 11 denotes, while the remaining thread sheets and partial rods in general with F resp.

T are designated. One recognizes the device frame 19 as a whole with 60 designated mechanical adjusting device for the rods T, also a Control cabinet 24 with a control device 75 and support 56 for a whole Holding and guiding device, denoted by 57, for the hook blades 13. In Fig. 2 and 3 is a holding and guiding device 57 for the hook blades 13 somewhat shown in more detail. There are four height-adjustable bearings on the frame 19 25, each connected in pairs in width by connecting rods 26, 31 are. Thereupon run roller carriers 27 and 28, in which rollers 29 and 30 are mounted. These take on the hook sheet designated as a whole by 13. The upper connecting rod 31 is attached analogously to the rod 26. The roller carriers 32 and connected to it 33 are relatively opposite for easier insertion or removal of the hook blade 13 the rod 31 is height-adjustable and, if necessary, fixed or

releasably arranged there. The lifting cylinder 34 is also on the frame 19 a hook blade adjusting device designated as a whole by 34 is provided. This causes the aforementioned transverse movement of the hook blade 13 accordingly the double arrow Pf 1. The holding and guiding device 57 has two limit switches 35 and 36 are provided, which control pulses corresponding to that in the control cabinet 24 housed control. These control pulses of the limit switches 35 and 36 can then activate the individual adjustment units 20, 21, 22, 23, etc. Trigger for the individual sub-rods T 9, T 10, T 11, T 12, etc. For each partial rod T 9, T 10, etc. to T x, two recording heads 61 and 62 are provided.

Furthermore, each partial rod T 9, T 10, etc. has a handle end 63 as well a generally designated 64 lock. This essentially consists of a groove 65 and a snap spring 66.

The handle ends 63 of the rods T 9, T 10, etc. and the corresponding designed Recording heads 62 are accommodated on the operating side of the device V. Both Holding heads 61 and 62 are each essentially perpendicular via a guide rod 67 guided with the frame 19 in connection. As adjustment drives are for each pair of guide rods 67 each have a pneumatic actuator 68 provided. This engages on a guide rod 67 a. Their movement is via a tooth system 69, pinion 70 and 71 as well as a Pinion rod 72 transferred to the second guide rod 67 b (Fig. 6 and 7). Through this is a uniform lifting and lowering movement of the rods T 9, T 10, etc. with simple Funds guaranteed. The one housed in the switch cabinet 24, not shown in detail In addition to one or more program circuits, control device 75 also has numerous Individual operating buttons 76 for triggering the lifting or lowering movement for each Partial rod T or for the transverse movement of the hook blade 13. The control device 75 can be a program control for a continuous or only partial continuous sequence of movements with regard to the partial rods T and possibly with regard to the Have movement sequence of the hook sheet 13, wherein the control device can stop or restart in such a way that the aforementioned program at any Position is to be stopped or restarted. The necessary Service time intervals, e.g. for pulling in the dividing cords 14 and 17, are also provided be. Accordingly, the individual working sections of the device V trigger manually as well as run according to a program and interrupt each time if necessary. So you can in an advantageous way in the event of malfunctions interrupt the work process immediately and the disruption by intervening Easily remove by hand. This is also a problem for unskilled operators easy, because the device V works according to the previously known principle. One such a disturbance is, for example, that a single thread 1, 2, etc. is not in the hooks provided hook 53 of the hook sheet 13; such disturbances cannot be completely ruled out in practical operation. Their ease of repair belongs to an advantageous mode of operation of the device V.

The sequence described in particular in connection with FIGS the actuation of the partial rods T 9, T 10, T 11 and T 12 also corresponds to the time Sequence of these work steps.

As can be seen from Fig. 1, the length is 19, 110, etc.

to lx of the guide rods 76, which carry the pick-up heads 61 and 62, designed differently or the length 19, 110 etc. is correspondingly different adjustable.

A further development of the invention is that this Lengths 1 are chosen so that the longitudinal axes of the rods T are in their respective Subscript are located on an arcuate line L, the curvature of which increases with Distance from the hook blade 13 increases more. This line L is shown in phantom in FIG and moved the corresponding position of the longitudinal axes of the partial rods T, that the distance a between the individual sets of threads F 1, F 2, F 3, etc. in the hook sheet 13 is at least approximately the same size. 12 shows a section on a greatly enlarged scale D from FIG. 1. The position of the three uppermost thread sheets F 1, F 2 can be seen there and F 3 in the hook sheet 13 during the normal passage of the thread sheets through this hook sheet 13. If you use the auxiliary device mentioned above, will usually the distances a between the individual sets of threads F 1, F 2, F 3 etc.

different sizes and there are often desired densities of the threads, because neighboring sets of threads come too close to one another. Through the the aforementioned design of the device 1 can now be the lowered position of the Partial rods T, as shown in Fig. 1, select or set that the distance between the individual thread sheets F 1, F 2, F 3 etc.

is essentially the same as indicated in FIG. From the e.g. through the guide roller 15 and the layers of the hook sheet 13 and the slip rollers 18 the result is then the curvature of the line L.

According to an additional development, the guide rods 67 are for the partial rods T, viewed in the direction of passage of the warp sheets F, tight arranged one behind the other. The actuators 68 are for the guide rods arranged laterally outside the area of these guide rods 67. This lets the total length of the adjusting device, in the direction of passage of the warp threads seen, between the position of the first partial rod T 9 and that of the last partial rod Keep T x relatively short. This also ensures compliance with at least approximately equal distances a between the adjacent yarn groups F facilitated.

The rod ends opposite the handle 63 of the partial rods T are with a known tip 73 or the like.

Profiling provided and according to the invention are these tips 73 or the like associated receiving heads 61 as protective caps for these tips 61 Od. Like. Profiling formed.

In this case, these protective cap-like receiving heads 61 are preferably made of plastic. This increases the risk of damage to the tips 73 or the like eliminated. These tips 73 of the rods T should be sharp and remain smooth so that they od individual fibrils. Like. Individual components of threads do not damage it. This design of the recording head 61 is also the easy Ease of use of the device V by a single operator.

From Fig. 1 it can also be seen well schematically that the device V is altogether adjustable in height by means of height-adjustable feet 74. The location of the Line L, i.e. the lower position of the partial rods T, is height-adjustable by means of this Feet74 can be easily adjusted to the geometric conditions of the associated textile machine. In addition, as already explained, the holding and guiding device 57 for the hook blade 13 relative to the device V is also still adjustable.

The upper position of the rods T shown in FIGS and the associated course of the thread sheets is dashed in Fig. 1 for the partial rods T 9 'with the associated thread group F 1' and for T x 'and F x'.

All the individual features described above and listed in the claims can be essential to the invention individually or in any combination with one another.

Claims (18)

Apparatus and method for the machine formation of a crosshair on a textile machine claims 1. Device for the machine formation of a crosshair on a textile machine, in particular sizing machine or assembly plant, where the device a hook leaf as well as a slip tree. Like. Sub-rods to be assigned has, d a d u r c h e k e n n n z e i c h n e t that in the device tV) previously known Hook sheets (13) are provided, which in a known manner parallel to the plane of the Warp thread sheets (F1, F2, etc.) and can be moved across their running direction, and that the individual sub-rods (T 9, T O, T ii, etc.) in a mechanical adjustment device (60) are each individually raised and lowered. 2. Apparatus according to claim 1, characterized in that it has a Holding and guiding device (57) for the hook blades (13), which preferably is transversely displaceable by means of a hook blade adjusting device (34) (Fig. 2). 3. Apparatus according to claim 1 or 2, characterized in that the partial rod adjustment device (60) or its individual adjustment units (20 to 23 etc.) and / or the hook blade adjusting device (34) pneumatic Actuators (68, 34). 4. Apparatus according to claim 1 to 3, characterized in that the actuators for the individual sub-rods (T 9, T 10, etc.) and expediently for the hook blades (13) are controlled synchronously by a control device (75). 5. Apparatus according to claim 1 to 4> characterized in that the control device (75) individual operating keys (76) for the movement of each individual Part of rod (T 9, T 10, etc.) or the hook blade (13) has. 6. Apparatus according to claim 1 to 5, characterized in that the holding and guiding device (57) for the hook blades (13) and preferably the associated hook blade adjustment device (34) adjustable in height on the frame (19) is arranged. 7. Apparatus according to claim 1 to 6, characterized in that the holding and guiding device (57) roller carrier (32, 33) for guiding the hook blade (13) which are adjustable in height relative to the holding and guiding device. 8. Apparatus according to claim 1 to 7, characterized in that the holding and guiding device (57) roller supports (27, 28) for support of the hook blade (13), which are adjustable in width. 9. Apparatus according to claim 1 to 8, characterized in that the holding and guiding device (57) on the two end positions of the transverse movement of the hook blade (13) coordinated limit switches (25, 36), the pulses for Give control device (75). 10. Apparatus according to claim 1 to 9, characterized in that each partial rod adjusting device (60) receiving heads (61, 62) for the ends of the Has partial rods (T 9, T 10, etc.). 11. The device according to claim 10, characterized in that the Partial rods (T) a handle end (73) and there one with the associated receiving head (62) cooperating lock (64), and that the handle ends as well the associated recording heads are located on the operating side of the device (did) are located. 12. Apparatus according to claim 1 to 11, characterized in that the partial rod adjustment devices (60) paired guide rods (67 a, 67 b) Have that od in the machine frame (19). The like. Guided and a pinion rod (72), two pinions (70, 71) that mesh with the teeth (69) of the guide rods, are guided in synchronism (Fig. 6 and 7). 13. Apparatus according to claim 1 to 12, characterized in that you with a program control for a continuous or partially continuous Sequence of movement of the rods (T) and possibly the hook blade (13) is provided, wherein preferably the program should be stopped or restarted at any point. 14. Apparatus according to claim 1 to 13, characterized in that the guide rods (67) for the partial rods (T), in the direction of passage of the warp sheets (F) seen, are arranged closely behind one another, the actuators (68) for the guide rods (67) preferably laterally outside the area of the tight side by side arranged partial rods (T) are (Fig. 1, 6 and 7). 15. Apparatus according to claim 1 to 14, characterized in that the lengths (19, 110 to lx) of the guide rods (67) are designed differently or are adjustable in such a way that the longitudinal axes of the partial rods (T 9, T 10 etc.) are in their respective subscripts on an arcuate line (L) and the distance (a) between the individual sets of threads (F 1, F 2 etc.) in the hook sheet is at least about the same size (Fig. 1 and 12). 16. Apparatus according to claim 1 to 15, characterized in that the handle (63) of the partial rods (T) opposite rod ends with a Tip (73) or the like. Profile provided and these tips or the like. associated receiving heads (61) as protective caps for these tips Od. Like. Are formed, preferably the protective caps are made of plastic. 17. Apparatus according to claim 1 to 16, characterized in that it has a height adjustment device, e.g. height-adjustable feet (74). 18. A method of machine-forming a crosshair on a Textile machine, in particular sizing or assembling machine, using of the device according to Claims 1 to 12, characterized by the following process steps: a) The hook sheet (13) is moved to a first end position and then the first partial rod (T 9) lifted by machine, then the hook blade is in its second End position shifted and then the second partial rod (T 10) raised by machine, then the hook blade is moved again to its first end position and so on ein.erstes compartment (16) is formed by the thread sheets (F1, F2, etc.); b) a first Partial cord (14) or the like is placed in the first compartment; c) afterwards the thread sheets (F1, F2, F3 etc.) are adjusted downwards by means of the machine Partial rods (T 9, T 10, etc.) lowered; d) the sub-work steps of the process step a) are repeated with the proviso that the hook blade is in the other than the above-described end position, with a second compartment (16 a) of the Sets of threads (F1, F2, F3, etc.) are formed; e) a second partial cord (17) od. Like. Is placed in the second compartment, with the aforementioned method steps at least two partial work steps are controlled synchronously via a control device (75) will. - Description -