JP3854575B2 - Partial warper for patterned warp and method for producing warp for patterned warp - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention has a warping drum, a plurality of yarn guides movable around the peripheral surface of the warping drum, and a yarn feeding station, and a rotary creel is disposed in the yarn feeding station. The present invention relates to a pattern warp partial warp machine in which a plurality of bobbins are arranged in a creel. Furthermore, the present invention relates to a method for producing a warp for a pattern by simultaneously drawing a plurality of yarns from one rotary creel and feeding them to the peripheral surface of a warping drum.
[0002]
[Prior art]
This kind of pattern warp partial warper and the basic method for producing such a pattern warp are already known (see Patent Document 1).
[0003]
[Patent Document 1]
EP (European Patent) 1136602 A1.
[0004]
This known one simply uses a rotary creel that can accept a limited number of bobbins, so a bobbin magazine is placed next to the rotary creel and another bobbin with another thread is attached to the bobbin magazine. Store it in the bobbin magazine. When a bobbin having a thread that does not exist in the rotary creel is needed for the pattern warp, the bobbin having the necessary thread is taken out from the bobbin magazine and set in an empty mounting part of the rotary creel. To do. In this case, if there is no vacant mounting part, unnecessary bobbins must be removed from the rotary creel in advance.
[0005]
With such a pattern warp partial warper, it is certainly possible to produce a pattern warp consisting of more yarns than can be produced with bobbin yarn set on a rotary creel.
[0006]
[Problems to be solved by the invention]
However, it takes a relatively long time to supply the necessary bobbin from the bobbin magazine to the rotary creel. At that time, the warping work must be interrupted. In addition, the required bobbins must be removed from the bobbin magazine and mounted on the rotating creel. After that, the warping work will be continued.
If the already installed bobbin has to be removed in order to secure the space for the new bobbin required as described above, the bobbin mounting work of the rotary creel is more laborious. It will be a thing.
[0007]
The present invention is directed to a partial warp and a method for a pattern warp that expands the possibilities of manufacturing a warp for a pattern.
[0008]
[Means for Solving the Problems]
The problem is that, in the type of warp partial warper of the type indicated at the beginning, at least one second rotary creel is arranged in the yarn feeding station, and a plurality of bobbins are arranged in the rotary creel. Selection means is provided for supplying the yarn guide with the yarn from the rotary creel of either the first rotary creel yarn or the at least one second rotary creel yarn ; and Among the first and second rotary creels, for the handle warp yarn provided with a rotary creel displacement device for aligning the rotary creel whose yarn is cooperating with the yarn guide with the warping drum . It can be solved by a partial warping machine.
[0009]
With the pattern warp partial warper according to the above configuration, the pattern warp can first be warped using the first rotary creel. If the pattern produced in the pattern warp requires the use of another thread, it can simply be switched to a second rotary creel or one of a plurality of other second rotary creels. The process (warping work) can be continued. In this case, the selection means supplies a desired yarn to the yarn guide from the “required” rotary creel each time.
[0010]
Switching from one rotary creel to the other is a relatively quick operation. That is, the selection means simply takes the first rotary creel yarn out of the warping zone and instead pulls the second rotary creel yarn into the warping zone. Such an operation can usually be realized within one rotation or at most two rotations of the thread guide. The interruption time required to draw the other yarns needed into the pattern warp is much shorter than conventional partial warping machines. This is particularly effective when it is desired to use a plurality of additional yarns or other yarns for warping. In that case, the advantage is particularly remarkable as compared with a known partial warp for pattern warp. In order to carry out a new warp on the warping drum, it can be carried out in a single transition and, as in the known art (prior art), "in the time required to replace each one bobbin A long time such as “the total time obtained by multiplying the necessary number of yarns” is not required for new yarn feeding.
[0011]
Preferably, a rotary creel displacement device for aligning the rotary creel of the first and second rotary creels whose mounted yarn is cooperating with the yarn guide with the warp drum. It is to be configured as provided. With this configuration, the rotary creel “working (contributing to warping)”, that is, the rotary creel in which the yarn cooperates with the yarn guide (the first or second rotation). The type creel makes it possible to rotate on substantially the same axis of rotation as the thread guide. This contributes to suppressing the yarn tension to a small one with respect to the yarn tension problem. In this case, all the yarns are withdrawn with substantially the same yarn tension regardless of the position at which the yarn is located. Therefore, there is a relatively low possibility that a non-uniform warp for a pattern will be warped.
[0012]
Preferably, the selection means is configured to have a number of yarn holding positions corresponding to the total number of bobbins. That is, the individual yarns can be held firmly in the selection means and the individual yarns can be captured or released under control. It is also possible to install different numbers of bobbins on each rotary creel. The only requirement is that the number of yarn holding positions matches the number of yarns to be firmly held.
[0013]
Preferably, the thread holding position assigned to one rotary creel (the rotary creel of either the first or second rotary creel) is the same as the other rotary creel (first or second rotary creel). The thread holding position assigned to the remaining rotary creel of the creel). That is, the individual yarn holding positions are grouped together, the first group (first group) is assigned to one of the first or second rotary creel, and the other group. (Other group) is configured to be assigned to the remaining rotary creel of the first or second rotary creel. If each group (each group) is designed to be closed to each other, the yarn will not be tangled. Release of a group of thread holding positions on one rotary creel is possible only if the thread holding positions of all other rotary creel threads are ensured to hold the thread firmly. It becomes possible. Unless such a situation is ensured, the thread of the one rotary creel is not released. Since this is a relatively simple logic operation, the closure can be done with simple means, ie with a plurality of OR elements and at least one AND element.
[0014]
Preferably, the yarn guide has different yarn discharge trajectories in the axial direction, and the selection means is configured to have a control device for assigning a predetermined yarn discharge trajectory to individual yarns of one rotary creel. With this configuration, the yarn guide that simultaneously feeds a plurality of yarns to the circumferential surface of the warping drum can feed the yarns side by side in the axial direction of the warping drum. For this reason, it is possible to consider that the yarn guide has the various yarn discharge trajectories described above. These yarn discharge trajectories can be realized, for example, by eye holes (guide holes) provided at the tip of the yarn guide and through which individual yarns run. Depending on the eye hole, the relative position of one yarn relative to the other yarns of one warp band on the warping drum in the axial direction is determined by selection of the yarn guide. For example, when warping a warp band in the order of black yarn, red yarn, green yarn, and white yarn, the position of each yarn in the circumferential direction of the yarn guide, that is, the black yarn is the first yarn guide and the red yarn is the second This can be realized by assigning the yarn guide, the green yarn to the third yarn guide, and the white yarn to the fourth yarn guide. When the arrangement order as the warp band is different, that is, when the part that has become the green thread, red thread, black thread, white thread is in the warp band for the pattern, the first thread guide for green thread, the second thread guide for red thread, A third yarn guide is assigned to the black yarn, and a fourth yarn guide is assigned to the white yarn, and the individual yarns are supplied to the peripheral surface of the warp drum in the desired order. This can be easily realized by the control device. The control device can also take care that the yarn discharge trajectories of the individual yarn guides are adjusted if necessary. However, this makes the device expensive.
[0015]
The second problem is that in the method of the type pointed out at the beginning, at least one second rotary creel having a plurality of yarns is further provided, and the first and second rotary creels are alternately arranged. The yarn of the rotary creel that is used as a yarn feeder and is not actually involved as a yarn feeder is held at a yarn holding position (also referred to as a standby position) , and the first rotary creel and the yarn Of the second rotary creel, the rotary creel that actually functions as the yarn feeder is solved by such a method that it is aligned with the warping drum .
Further, the second problem is that, in the method of the type pointed out at the beginning, at least one second rotary creel having a plurality of yarns is further provided, and the first rotary creel and the second rotation are provided. Are used alternately as the yarn feeder, and the yarn of the rotary creel that is not actually involved as the yarn feeder is held at the yarn holding position,
The problem is solved by such a method that the yarns are picked up from the yarn holding position in a predetermined order different from the order of the supplied yarns.
[0016]
As described above in connection with the partial warp for pattern warp, the above method allows the auxiliary yarn or yarn to be easily taken in (arranged) into the handle of the pattern warp. Incorporation only requires a relatively short time. These individual yarns can be removed relatively quickly from the yarn holding position . Just as well, the individual yarns can be quickly returned to the yarn holding position . The behavior of returning to the yarn holding position itself is known and is described, for example, in EP1133662A1 mentioned at the beginning. In this known prior art, the yarn drawn from the bobbin of the bobbin magazine is held in the yarn box.
[0017]
Preferably, the rotary creel that is actually functioning as a yarn feeder during the warping operation is arranged so as to be aligned with the warping drum. When configured in this manner, the functioning rotary creel has substantially the same rotational axis as the yarn guide for feeding individual yarns to the peripheral surface of the warping drum. As a result, the yarn path from the functioning rotary creel to the yarn guide does not change when the yarn guide and the rotary creel rotate.
[0018]
Preferably, when switching from one rotary creel to another, that is, when switching from one of the first and second rotary creel to another rotary creel, The configuration is such that the yarn is fed to the yarn holding position . That is, in the switching process (step), no yarn is present on the yarn guide. The yarn guide stops only during this short time. However, once the switching process has been completed, the thread guide can again pick up the thread installed therein from the “needed” rotary creel.
[0019]
Preferably, the yarn is picked up from the yarn holding position in a predetermined order different from the order of the supplied yarn. For example, in the circumferential direction of the rotary creel, when red yarn, green yarn, black yarn, and white yarn are arranged in this order, when picking up these yarns by the yarn guide, pick them up in the order of black, green, red, and white. It is possible without any problems. In that case, there will certainly be an intersection of threads in the space between the rotary creel and the thread guide. But this is not a problem. This is because the yarn can travel (feed yarn) from the rotary creel to the yarn guide without the yarns becoming entangled despite the intersection of the yarns.
[0020]
Preferably, the yarns from one rotary creel is to configure so that all of the yarn from the other rotary creel is released from the yarn holding position only when firmly held by the yarn holding position. That is, the yarn fed from the rotary creel of either the first or second rotary creel is fed from the remaining rotary creel of the first or second rotary creel. Only when all yarns are securely held in the yarn holding position , are they released from the yarn holding position .
Such a yarn holding position can be realized mechanically. If only the first rotary creel yarn is always released, yarn tangles can be prevented with high reliability.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings.
[0022]
The patterned warp partial warping machine 100 includes a warping drum 1. A conveyor belt 2 that is movable in the direction indicated by an arrow 3 in FIG. 1 and is arranged in parallel with the axis of the warping drum 1 (also referred to as “axis” in this specification), and a dividing rod 4 that is parallel to the axis. 5 and 6 are arranged on the circumferential surface of the warping drum 1. The dividing rods 4, 5, and 6 are called “reed rods” or “cutting rods” depending on their functions.
[0023]
The rotary creel 7 arranged so as to face one front surface of the warping drum 1 has a rotating body 8, and the rotating body 8 carries a large number of bobbins 9. The rotating body 8 is driven by a motor 10.
[0024]
The yarn guide 11 is disposed at the tip of the arm 13 on the front surface of the warping drum 1. These arms 13 are configured to be rotatable around the axis of the warping drum 1 and in synchronization with the rotation of the rotating body 8. The synchronized movement between the rotating body 8 and the yarn guide 11 is preferably provided by a suitably configured drive control device.
[0025]
The yarn guide 11 pulls the yarn 12 from the rotary creel 7 and feeds the yarn 12 onto the conveyor belt 2 and selectively above or below the dividing rods 4, 5, 6. The yarns 12 can all be of different types (colors, types of yarns themselves, etc.), but preferably consist of a plurality of groups each having two or more identical yarns. Since all the yarns 12 drawn from the rotary creel 7 are fed onto the warping drum 1 substantially simultaneously during one rotation of the yarn guide 11, these yarns 12 can be realized by these yarns 12. A warp for a handle having a repeat can be produced (warping).
[0026]
However, in some cases, the number of these yarns 12 supplied from the rotary creel 7 may not be sufficient. Although it is conceivable to increase the rotary creel 7 for the purpose of accommodating more bobbins 9 in the rotary creel 7, there is a limit in this case. Furthermore, many yarn guides 11 must be provided in accordance with the number of yarns to be increased, which makes it difficult to control the movement when the yarns 12 are fed before or after the dividing rods 4, 5, 6.
[0027]
In order to realize the repeat of the pattern warp (warp band) with a plurality of yarns or other yarns (single or plural yarns), the rotary type beside the rotary creel 7 (first rotary creel) Another rotary creel (second rotary creel) 7 'having the same structure as the creel 7 is arranged. The components of the rotary creel 7 ′, which are the same as those of the rotary creel 7, are indicated by corresponding signs (reference symbols) with a dash.
[0028]
Both of the rotary creels 7 and 7 ′ are supported on one rail 14, and are configured to be movable on the rail 14 in the direction indicated by the double arrow 15. A drive device (rotary creel displacement device) 16 is provided for moving both rotary creels 7, 7 ', which drive device 16 is shown schematically. However, this drive device 16 can also be arranged inside the base 17, 17 'of the rotary creel 7, 7'. The bases 17, 17 ′ of both rotary creels 7, 7 ′ can be mechanically connected to each other, for example by means of a simple connecting rod 18 (see FIG. 2).
[0029]
In the operation state shown in FIG. 1, the rotary creel 7 is “active (during warping)”, that is, the yarn guide 11 pulls the yarn 12 from the rotary creel 7 and puts the yarn 12 on the conveyor belt 2. Supply yarn. In this operating state, on the other hand, the rotary creel 7 ′ is “inactive (during non-warping)”, ie the yarn 12 ′ from the rotary creel 7 ′ is not shown in FIG. The yarn which is not present is held in a yarn box (selection means for selectively supplying the yarn to the yarn guide) 19 '(see FIGS. 2A to 2C). The yarn box 19 ′ (the corresponding yarn box (selection means) 19 is also provided for the rotary creel 7) has a number of yarn holding positions corresponding to the number of bobbins 9 ′ of the rotary creel 7 ′. . Each thread holding position includes a thread clamp that can securely hold the corresponding thread 12 ′, and a swinging advance device that can carry or remove each thread 12 ′ into the movement trajectory of the thread guide 11. Formed by. Such yarn handling means (yarn clamp and swing-in / out advance device) is known per se and will not be described in detail here.
[0030]
That is, as long as the rotary creel 7 is “active (during warping)”, the yarn 12 ′ of the other rotary creel 7 ′ is firmly held in the yarn box 19 ′. This state is shown in FIG.
[0031]
When moving from one rotary creel 7 to another rotary creel 7 ′, first, the thread 12 of the rotary creel 7 that is “active (warping)” is captured in the yarn box 19. And is held firmly there. This process (process) can be completed during one rotation of the yarn guide 11. This process (process) is controlled by the control device 30 connected to the yarn boxes 19 and 19 ′, for example, via an electric wire not shown in detail.
[0032]
As long as all the yarns 12 are securely held in the yarn box 19, that is to say they are held in the yarn holding position , both rotary creels 7, 7 'can be displaced synchronously with each other. The transition operation is shown in FIG. 2 (b).
[0033]
When the other rotary creel 7 ′ is aligned with the warping drum 1, that is, when the rotation axis 20 ′ coincides with the rotation axis 21 of the yarn guide 11, the yarn 12 ′ of the rotary creel 7 ′ is transferred by the control device 30. It can be picked up by the yarn guide 11 under control. In this state, the yarn 12 of the rotary creel 7 is firmly held in the yarn box 19, that is, in this state, the yarn 12 of the rotary creel 7 is outside the movement track of the yarn guide 11.
[0034]
When the individual yarns 12 'fed from the rotary creel 7' are delivered from the yarn box 19 to the yarn guide 11, the yarn guide 11 is disposed on the rotary creel 7 '. It is not necessary to pick them up in the same order. As shown in the figure, the yarn 12a is guided in an order different from such an order, that is, intersects with all other yarns (in the plan view) (see FIG. 2C). This is possible without problems because this intersection is maintained as it is during the continuous rotation of the yarn guide 11 which occurs in synchronism with the rotation of the rotating body 8 'of the rotary creel 7'.
[0035]
The individual yarn guide 11 feeds the yarn 12 or the yarn 12 ′ to different positions in the axial direction on the conveyor belt 2, and thus the individual yarns 12, 12 ′ when feeding the warp drum 1. It can be considered that the pattern formed by these yarns, that is, the pattern formed by these yarns, is changed to a desired state by this measure.
[0036]
When the rotary creel 7 at the standby position (FIG. 2 (c)) is found that the storage yarn in the rotary creel 7 runs out during the next warping, a new bobbin 9 is replenished at this standby position. The In doing so, the initial end of the new thread is simply tied or spliced to the old thread, and after the next replacement of the rotary creel 7, 7 ', the warping process (work) is not interrupted. Work can be continued.
[0037]
As described above, the exchange from the thread 12 of the rotary creel 7 to the thread 12 'of another rotary creel 7' can be performed relatively quickly. There is no major interruption in the warping process (work).
[0038]
Instead of the two rotary creels 7, 7 'shown, three or more rotary creels can of course be used if necessary. In that case, any of these rotary creels can be selectively displaced with respect to the warping drum 1 by the same technique (configuration) as the above-described embodiment.
[0039]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the method of manufacturing the partial warp for pattern warps and the warp for patterns which expanded the possibility at the time of manufacture of the warp for patterns can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a pattern warp partial warper equipped with two rotary creels.
FIG. 2 is a schematic diagram showing the positional relationship between each rotary creel and a warping drum in the process of transition from one rotary creel to the other, wherein (a) is a state before transition; ) A state in the middle of transition, (c) is a diagram showing a transition end state.
[Explanation of symbols]
100: Partial warping machine for pattern warp 1: Warping drum 7: Rotary creel (first rotary creel)
7 '... Rotary creel (second rotary creel)
9 '... bobbin 11 ... thread guide 12 ... thread 12' ... thread 19 ... selection means 19 '... selection means

Claims (10)

A warping drum, a plurality of yarn guides movable around a circumferential surface of the warping drum, and a yarn feeding station, and a first rotary creel disposed in the yarn feeding station. In the partial warp for pattern warp where a plurality of bobbins are arranged in the creel,
At least one second rotary creel (7 ′) is arranged in the yarn feeding station, and a plurality of bobbins (9 ′) are arranged in the second rotary creel (7 ′). Any one of the yarn (12) of the first rotary creel (7) and the yarn (12 ') of the second rotary creel (7') is selectively supplied to the yarn guide (11). Selection means (19, 19 ') are provided ,
Further, of the rotary creels (7, 7 ' ), the rotary creel whose yarn (12, 12 ' ) is cooperating with the yarn guide (11) is aligned with the warping drum (1). A partial warping machine provided with a rotary creel displacement device (16) . 2. The partial warping machine according to claim 1, wherein the selection means (19, 19 ') has a number of yarn holding positions corresponding to the total number of bobbins (9, 9'). One thread holding position assigned to either the rotary creel (7) or the rotary creel (7 ') is assigned to the remaining rotary creel (7, 7'). against the other thread retaining position, one of the thread retaining position wherein it is characterized in that the yarn holding position of said other unless firmly holding the yarn is configured so as not to release the yarn according to claim 2 The partial warping machine described . The plurality of yarn guides (11), said warper drum is configured to occupy different yarn yarn feed position, respectively in the axial direction of said selecting means (19, 19 ') is, the rotary creel (7,7 The partial warping machine according to any one of claims 1 to 3 , further comprising a control device that assigns a predetermined yarn feeding position to one individual yarn (12, 12 ') of'). . In a method for producing a warp for a pattern by drawing a plurality of yarns simultaneously from one first rotary creel and feeding them to the peripheral surface of the warping drum,
At least one second rotary creel having a plurality of yarns is further provided, and the first rotary creel and the second rotary creel are alternately used as a yarn feeder, and the yarn feeder is actually used. The non-participating rotary creel yarn is held at the yarn holding position ,
Of the first rotary creel and the second rotary creel, the rotary creel actually functioning as a yarn feeder is aligned with the warping drum. . In a method for producing a warp for a pattern by drawing a plurality of yarns simultaneously from one first rotary creel and feeding them to the peripheral surface of the warping drum,
At least one second rotary creel having a plurality of yarns is further provided, and the first rotary creel and the second rotary creel are alternately used as a yarn feeder, and the yarn feeder is actually used. The non-participating rotary creel yarn is held at the yarn holding position ,
A method wherein the yarns are picked up from the yarn holding position in a predetermined order different from the order of the fed yarns . Of the first rotary creel and the second rotary creel, when one of the rotary creels is switched to another rotary creel, all the yarns are fed to the yarn holding position. The method according to claim 5 . Of the first rotary creel and the second rotary creel, when one of the rotary creels is switched to another rotary creel, all the yarns are fed to the yarn holding position. The method according to claim 6 . The method according to claim 5 or 7 , characterized in that the yarns are picked up from the yarn holding position in a predetermined order different from the order of the supplied yarns. The yarn fed from the rotary creel of either the first rotary creel or the second rotary creel is the remaining rotary creel of the first rotary creel or the second rotary creel. only when all of the yarn from the creel is firmly held by the thread holding position, any one method according to claim 5-9, characterized in that it is released from the yarn holding position.

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