JP6226975B2 - Textile machine having a draft unit and two fiber material supply devices, and a fiber material supply method - Google Patents

Description

  The present invention relates to a textile machine, and in particular, a fiber material supply device that can supply a fiber material to a draft unit, a draft unit that makes the fiber material thinner, and a fiber material that is connected downstream of the draft unit and immediately after the draft. In particular, the present invention relates to a spinning knitting machine having a processing unit that is a knitting machine and a sensor that detects a defect of a fiber material.

  In such a textile machine, the fiber material is generally supplied from a plurality of supply devices to a single knitting machine for performing a common process, but the supply is interrupted when the fiber material is torn or lost. As a result, a large defect may occur in the final product. Patent Document 1 proposes that the presence of a fiber bundle in a spinning knitting machine is detected by a sensor arranged upstream of the draft unit. If the fiber bundle is not present, the draft unit stops before the draft unit cannot be fed with fiber material and the final product will be defective.

  When producing knitted fabrics or crochet knitted fabrics, particularly as regards yarns, they try to make them as uniform as possible so that there are no thin or thick parts that are visible. The reason why defects occur in the fiber process applies to both irregularities in supplying the material to the textile machine and irregularities in the manufacturing process, for example, during rotation of the threading process. Therefore, when manufacturing yarns, yarn cleaners are often used to check for defects in the final product after manufacture and to remove any found defects. Alternatively, the manufactured yarn defect may not be removed until a downstream processing stage such as a winding process.

  However, in textile machines where the fiber material is fed into a further processing system such as a knitting machine immediately after drafting, it is no longer possible to remove defects in the final product. In Patent Document 2, it is proposed to monitor a defect of the fiber material supplied to the draft unit. When a defect in the fiber material is detected by the sensor, it is cut off and the two ends are rejoined after the defect has been removed. If the fiber material in the draft unit runs out during the defect removal process, the spinning / knitting process is interrupted. To prevent this, the fiber material is monitored and fed to the draft unit via an intermediate storage area. However, if there is no more fiber material in the intermediate storage area, the process must be interrupted anyway.

German Patent Publication No. 102005031079 German Patent Publication No. 102007052190

  An object of the present invention is to provide a high-performance textile machine capable of reliably supplying a textile material to a draft unit of the textile machine, and a method for supplying the same.

  The object of the invention is achieved by the content of the appended claims.

  A fiber material supply device that supplies the first fiber material toward the draft unit, a draft unit that drafts the first fiber material to make it thinner, and a first unit that is connected downstream of the draft unit and immediately after being drafted There is provided a textile machine including a spinning knitting machine including a processing unit including a knitting machine that processes one fiber material, and a first sensor that detects a defect of the first fiber material. According to the present invention, when the second fiber material supply device and the exchange device are connected to the draft unit and a defect in the first fiber material is detected, the second fiber material exchanged by the exchange device is detected. The second fiber material is supplied from the supply device to the draft unit. Further, in the textile machine, the fiber material is supplied to the draft unit, wherein the first fiber material is supplied from the fiber material supply device to the draft unit, drafted in the draft unit, and connected downstream of the draft unit. Immediately after machining in the machining unit, the sensor is supplied to a draft device that is monitored for defects by a sensor. According to the present invention, when the second fiber material supply device and the exchange device are connected to the draft unit, and a defect in the first fiber material is detected, the second fiber material supply exchanged by the exchange device. A second fiber material is fed from the apparatus to the draft unit. If a defect in the fiber material is detected or the fiber material supply is interrupted, the fiber material can be reliably sent to the drafting device by replacing it with a second fiber material supply device, thereby interrupting the fiber process. Can be prevented. Therefore, the second fiber material supply device may include a preliminary feeding device that only temporarily supplies the fiber material to the draft unit. As soon as the defect in the fiber material is removed or the fiber material is exhausted, the fiber material supply device is replaced and the system returns control to the first fiber material supply device, which is the main fiber material supply device. Therefore, since the second fiber material supply device is merely a temporary supply device, it need not be monitored.

  According to a preferred embodiment of the present invention, the exchange device comprises a first fiber material supply unit for supplying a first fiber material and a second fiber material supply for supplying a second fiber material. And a controller for alternately supplying the first and second fiber materials to the draft unit by alternately operating the first and second fiber material supply units.

  Preferably, in the method of supplying the fiber material, the first and second fiber materials are respectively supplied from the first and second fiber material supply devices exchanged by the exchange device, and the first and second fibers are supplied. The first and second fiber materials from the material feeder are monitored for defects.

  Preferably, the textile machine further comprises a second sensor for detecting a defect in the second textile material. When a defect is detected in the fiber material, the corresponding fiber material supply unit is stopped by the controller and at the same time the other fiber material supply unit is started.

  When a defect in the fiber material is detected, the fiber material is stopped and cut and the other fiber material supply device is started. Thus, the fiber material is reliably supplied to the draft unit by the other fiber material supply device.

  In particular, it is advantageous for the end of the fiber material on the newly started fiber material supply unit side to join the fiber material end of the fiber material on the draft unit side before the fiber material supply unit actually stops. . The textile machine is provided with a splicer for joining the ends of the fiber material between the draft unit. By joining the fiber material ends with this splicer, no new defects can be made in the fiber material, and the new fiber material can be sent to the draft unit by the fiber material whose supply is stopped. However, if there is no fiber material, the end of the fiber material may be sent directly to the draft unit from the fiber material supply unit or the fiber material supply unit newly started by the supply nozzle.

  Furthermore, it is advantageous that at least one defect removal device is arranged between the fiber material supply unit and the draft unit in order to remove the detected defects. Therefore, the replacement to the other fiber material supply device and the removal of the defect can be performed fully automatically. However, the defect in the fiber material may be done manually by an operator. This is because the supply of the fiber material to the draft unit is surely performed by another fiber material supply unit, so that it is not necessary to remove the defect immediately.

  In a preferred embodiment, the defect removal device includes a cutting device, such as a polishing or grinding device, for cutting the fiber material. This is particularly advantageous because a sharp fiber material end can be formed which can be joined to the other fiber material end. The cutting device may be provided as a shearing machine or a twist nozzle that allows the fiber material to be cut by untwisting. According to another embodiment of the invention, the fiber material may simply be cut by stopping the fiber material supply unit. If the distance between the fiber material supply unit and the roller at the entrance of the draft unit coincides with the fiber length of the fiber material, a sharp fiber material end can be formed. The defect removal device is advantageous because it includes a pre-processing device for pre-processing the fiber material end. The pre-processing apparatus can optimally pre-process the fiber material end in a reproducible manner from the viewpoint of sharpening the end of the fiber material. Therefore, a substantially uniform seam can be formed by the cutting device and / or the preliminary processing device.

  According to the first embodiment of the present invention, each of the fiber material supply units that send the fiber material to the draft unit has a pair of rollers, and at least one of them is driven so that the fiber material Is sent to the draft unit. The pair of rollers functions as a clamping device when driving is stopped. For example, if the ends are cut or pre-processed, there is no need to further sandwich the fiber material. Each of the fiber material supply units may have a clamping device and a spray nozzle. In this case, the supply of the fiber material from the fiber material supply device is directly performed by a pair of rollers at the entrance of the draft unit in which the fiber material is drawn. The supply of the fiber material in the draft unit or the splicer is performed by the injection nozzle only when the corresponding fiber material supply device is activated.

  The clamping device is advantageously connected to a device for storing spare fiber material. This device may include, for example, a deflecting bar for deflecting the fiber material to store a predetermined length and supplying the stored amount simultaneously with the operation of the injection nozzle. This allows the fiber material to be sent to the draft unit inlet or splicer with the same length with reproducibility and increases the quality of the fiber material seam.

  According to another embodiment of the invention, each of the fiber material supply units has two pairs of rollers that can vary the draft of the fiber material. Thereby, the edge part of a fiber material can be made still thinner before joining. As a result, it is possible to draft both the end of the fiber material to be lost and the end of the newly supplied fiber material, so that an optimum seam can be formed.

  Furthermore, each fiber material supply unit is controlled by a single drive. This has the advantage that the fiber material supply unit can be stopped and restarted in a particularly simple manner, so that it is easy to set up a draft for the fiber material supply unit with the pair of rollers. However, the fiber material supply unit may be driven by a common drive device such as one clutch that can be switched between stop and start by a controller.

  Furthermore, the textile machine is advantageous because it comprises a twisting device connected upstream of the processing unit containing the knitting machine. Since the fiber material after drafting is reinforced by this twisting device before the knitting process, the stability during processing is further increased.

  The second fiber material supply device and the exchange device are useful not only for a spinning knitting machine but also for a spinning machine. For example, if fiber bundles are spun irregularly, if those bundles have already been monitored, that portion can be removed in a subsequent yarn cleaner process.

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

1 is an overall view of a spinning knitting machine which is a textile machine according to the present invention. FIG. 2 shows a textile machine during the switching of the fiber material supply according to the invention. FIG. 4 shows a textile machine according to another embodiment of the invention. FIG. 6 shows a textile machine with another design of fiber material supply unit according to yet another embodiment of the present invention. It is a figure which shows the defect removal process after completion | finish of replacement | exchange of the fiber material supply apparatus by embodiment of FIG. It is a figure which shows the fiber material supply unit which has an apparatus which stores a reserve fiber material. It is the schematic which shows the fiber mass distribution in the junction of a fiber material. It is the schematic which shows distribution of the fiber quantity in the junction of the fiber material from which the grade of a draft differs.

  FIG. 1 is a schematic view of a textile machine 1 which is a spinning knitting machine. When the textile machine 1 manufactures the knitted fabric, the intermediate yarn is not manufactured by the knitting machine 4 but directly manufactured from the fiber material 2 drawn from the fiber material supply device 3. The fiber material 2 is supplied to the knitting machine 4 through the draft unit 5. The general draft unit 5 has a plurality of pairs of rollers 6, and the fiber material 2 is drafted between the rollers 6 by driving these pairs of rollers 6 at different speeds.

  The knitting machine 4 may be, for example, a circular device in which a plurality of fiber materials 2 are supplied from a plurality of draft units 5 along the outer periphery thereof. In FIG. 1, only one draft unit 5 is shown. A twist mechanism 7 is disposed between the draft unit 5 and the knitting machine 4. The twisting mechanism 7 can have the strength required for the spinning / knitting process by applying a false twist to the fiber material 2 that has been drafted to a desired fineness through the draft unit 5. The fiber material supply device 3 may be a bobbin around which a temporary yarn or a slightly twisted flyer roving is wound. However, the fiber material supply device 3 may supply a fiber bundle that is not twisted. In the fiber material supply device 3, the sensor 8 monitors the presence or absence of the fiber material and defects such as a portion where the fiber material is too thin or too thick. Such defects in the fiber material not only cause visible defects in the final product, but also affect the subsequent spinning process.

  According to the present invention, in order to guarantee the quality of the fiber material 2 supplied to the draft unit 5 and at the same time not to interrupt the spinning / knitting process, the second fiber material supply device 3 ′ and the fiber material supply An exchange device 9 for exchanging the devices 3 and 3 ′ is connected to the draft unit 5. When a defect in the first fiber material 2 is detected, the exchange device 9 replaces the first fiber material supply device 3 with the second fiber material supply device 3 '. Instead of the fiber material 2 sent from the first fiber material supply device 3, the second fiber material 2 ′ is transferred from the second fiber material supply device 3 ′ exchanged by the exchange device 9 to the draft unit 5. Supplied.

  The exchange device 9 has a fiber material supply unit 10, 10 'for each fiber material 2, 2' and a controller 11 for controlling the fiber material supply unit 10, 10 '. Here, each of the fiber material supply units 10 and 10 ′ includes a pair of rollers 6, and each pair of rollers 6 is individually driven. As a result, the corresponding fiber materials 2 and 2 ′ enter the draft unit 5.

  The fiber materials 2 and 2 ′ supplied from the fiber material supply devices 3 and 3 ′ are monitored by sensors 8 and 8 ′ for any defect. As shown in the figure, the second fiber material supply unit 10 ′ is stopped while the fiber material 2 is being fed by the first fiber material supply unit 10. When a defect in the fiber material 2 is detected, a corresponding signal is sent from the sensor 8 to the controller 11, and the controller 11 stops the fiber material supply unit 10 that supplies the first fiber material 2. By stopping the fiber material supply unit 10, the fiber material 2 is cut between the fiber material supply unit 10 and the draft unit 5. As a result, a pointed fiber material end 19 is formed on the fiber material 2 that is still loosely twisted. At the same time, the second fiber material supply unit 10 ′ for the second fiber material 2 ′ is activated by the controller 11, whereby the second fibers are transferred from the second wire material supply device 3 ′ to the draft unit 5. Material 2 'is supplied.

  Preferably, as shown in the figure, the splicer (joining device) 12 is arranged between the fiber material supply unit 10, 10 ′ and the draft unit 5, so that the second fiber on the fiber material supply device side is provided. The fiber material end 19 of the material 2 ′ and the fiber material end 19 of the first fiber material 2 on the draft unit side can be joined. Thereby, the second fiber material 2 ′ can be drawn into the draft unit 5 by the fiber material end portion 19 of the first fiber material 2 on the draft unit side. When the joining is completed, the second fiber material 2 ′ is supplied from the second fiber material supply device 3 ′ to the draft unit 5 via the fiber material supply unit 10 ′. However, if there is no fiber material end 19 of the first fiber material 2 on the draft unit side, the fiber material end 19 of the second fiber material 2 ′ can be led directly to the draft unit 5.

  Finally, if a defect is detected in the first fiber material 2, it is removed. In the simplest case, this defect removal can be done by an operator operating the fiber material supply unit 10, pulling the end of the fiber material 2 to cut the defective fiber material 2 and subsequently the joining device 12. The first fiber material supply device 3 is exchanged by performing the joining process. Meanwhile, since the second fiber material 2 ′ is supplied to the draft unit 5, the process is not interrupted.

  However, it is more advantageous if the exchanging device 9 as shown in FIG. 2 performs all processing such as exchanging, joining, and defect removal of the fiber material feeding devices 3, 3 '. For this reason, the controller 11 controls the exchange device 9 according to the signal from the sensor 8 to alternately drive the fiber material supply units 10, 10 ′. That is, when a defect in the fiber material 2, 2 'is detected, the fiber material supply unit 10, 10' causing the defect is stopped and the other fiber material supply unit 10, 10 'is activated. Thereafter, the fiber materials 2 and 2 ′ supplied from the other fiber material supply units 10 and 10 ′ are continuously supplied to the draft unit 5 until a defect is detected, and when the defect is detected, the other supply device 3 and Exchange to 3 'is performed. In addition to the splicer 12, a defect removal device 13 is provided, and the splicer 12 and the defect removal device 13 may be controlled by the controller 11, as indicated by the one-dot chain line in FIG. 2.

  In the situation shown in FIG. 2, when a defect in the first fiber material 2 is detected, the fiber material supply unit 10 stops, and the first fiber material 2 is placed between the draft unit 5 and the fiber material supply unit 10. Disconnected. On the other hand, the fiber material end 19 of the second fiber material 2 ′ is sent to the splicer 12 by the fiber material supply unit 10 ′ and joined to the fiber material end 19 of the first fiber material 2 on the draft unit side. The The fiber material end 19 of the first fiber material 2 on the supply device side is supplied by the controller 11 to the defect removal device 13 having a suction device that sucks the fiber material end 19 on the supply device side. Thereafter, when the controller 11 starts the fiber material supply unit 10, the defective fiber material supplied from the fiber material supply device 3 is discharged and sucked. And the fiber material supply unit 10 stops, the fiber material edge part 19 of the 1st fiber material 2 still in a suction device is cut | disconnected, and the preliminary | backup process for the next joining process is given.

  The simplest method of cutting the first fiber material 2 is to use tension when sucking the fiber material sandwiched between the currently stopped fiber material supply unit 10. By continuing to suck, the fiber material end 19 becomes thinner, so that it is also pre-processed for the next joining step. However, it is more advantageous if the defect removal device 13 as shown in FIG. 2 has a cutting device 14 which can be, for example, a shearing machine in addition to the preliminary processing device 15. The pre-processing device 15 is preferably a pneumatic pre-processing device that narrows the fiber material end 19 with an aligned nozzle. Formation of a thin, uniform and defect-free seam of the fiber material 2, 2 ′ is performed in a reproducible manner by the cutting device 14 and the pre-processing device 15. In FIG. 2, two fiber materials 2, 2 ′ may exist alternately in a single defect removal device 13. However, a dedicated defect removing device 13 may be provided for each fiber material 2, 2 ′.

  FIG. 3 shows a defect removing device 13 including the suction device shown in FIG. A cutting device 14 is provided for forming and pre-processing the fiber material ends 19, 19 'of the sucked fiber material 2, 2'. A polishing or grinding device may be used, in which case, for example, the rotating shaft of the polishing or grinding device is arranged so as to obliquely cross the fiber material 2, 2 ′, thereby cutting the tip sharply. it can. Therefore, the preliminary processing apparatus 15 is unnecessary. For the remaining components, see the embodiment shown in FIGS. 1 and 2 above.

  FIG. 7 is a schematic diagram showing the fiber mass distribution of the joined seam of the two fiber material end portions 19. As shown in the figure, the two fiber materials 2, 2 ′ exhibit substantially the same mass distribution with respect to the length of the fiber material end 19. The length of the fiber material end portion 19 substantially coincides with the maximum fiber length of the fibers constituting the processed fiber material 2, 2 '. Since the fiber material 2, 2 ′ whose supply is stopped is always cut off by being torn between the fiber material supply unit 10, 10 ′ and the draft unit 5, the fiber material 2, 2 ′ is automatically sharpened. A leading end 19 is formed. Alternatively, the fiber material ends 19 of the fiber materials 2, 2 ′ from which defects have already been removed may be subjected to preliminary processing by the preliminary processing device 15 or the cutting device 14 that can also be used as the preliminary processing device 15. . This makes it possible to form a substantially uniform seam that is only slightly thicker than the fiber material 2, 2 ′ before being cut, so that the finished product looks better.

  Furthermore, it is possible to optimize the joint between the two fiber materials 2, 2 'from the viewpoint of fiber mass distribution and strength. Therefore, as shown in FIG. 3, each fiber material supply unit 10, 10 ′ is provided with an exchange device 9 having two pairs of rollers 6 that are driven and controlled separately. The drive of each pair of rollers 6 may be controlled by a single drive by the controller 11 or may be controlled by a controllable planetary gear or a switchable clutch. By providing two pairs of rollers 6, the draft of the fiber material 2, 2 ′ can be arbitrarily changed.

  FIG. 8 shows the fiber mass distribution of the seam of the fiber material end 19 with respect to the length of the fiber material end 19 as shown in FIG. The state after the defect of the fiber material 2 is detected and the fiber material 2 is stopped is shown. Unlike FIG. 7, the fiber material supply unit 10 does not stop immediately after it is detected that the fiber material 2 is defective. First, the draft of the fiber material end 19 is changed by the two pairs of rollers 6. As a result, the fiber mass of the fiber material end 19 decreases. Thereafter, the fiber material supply unit 10 only stops, and the final region 19 c becomes a sharp fiber material end 19. In the region 19a, the fiber mass gradually decreases, and in the region 19b, the fiber mass decreases constantly or the draft increases constantly.

  On the other hand, the fiber material end 19 of the fiber material 2 ′ is preliminarily processed only by the preliminary processing device 15 or the cutting device 14 corresponding thereto before the defect removing step so as to be sharp. Here, the length of the prefabricated fiber material end 19 substantially extends to the length of the fibers of the fiber material 2, 2 '. The end 19 of the fiber material 2 'may also be narrowed to accommodate changes in the draft made by the fiber material supply unit 10'.

  A further embodiment of the present invention is shown in FIG. Unlike FIGS. 1-3, the fiber material supply units 10, 10 'are provided as jet nozzles 20, 20' having clamping devices 21, 21 ', respectively. As shown in the figure, the fiber material 2 'is supplied from a fiber material supply device 3'. Then, the clamping device 21 ′ is opened, and the fiber material 2 ′ passes through the injection nozzle 20 ′ and goes to the draft unit 5. The fiber material 2 ′ is drawn directly from the pair of rollers 6 a at the entrance of the draft unit 5. The jet nozzles 20 and 20 'perform preliminary processing of the fiber material end portions 19 and 19' after replacement of the fiber material supply device. If a defect in the fiber material 2 ′ is detected, the clamping device 21 ′ is closed and the fiber material 2 ′ is torn between the clamping device 21 ′ and the pair of rollers 6 a at the entrance of the draft unit 5. At the same time, the clamping device 21 is opened, and the prefabricated fiber material end 19 of the fiber material 2 is fed into the splicer 12 by the injection nozzle 20 to which compressed air is applied. Thereafter, the fiber material end 19 of the fiber material 2 on the supply device side joins with the fiber material end 19 on the draft unit side in the splicer 12 and is drawn into the draft unit 5 by the fiber material end 19 on the draft unit side. . Since the fiber material 2 is drawn directly by the pair of rollers 6a at the entrance of the draft unit 5, the spray nozzle 20 may be turned off. Then, the fiber material 2 is supplied from the fiber material supply device 3.

  When the replacement of the fiber material supply device is completed, the fiber material 2 ′ goes to the defect removing device 13 and the clamping device 21 ′ is opened. The fiber material end 19 'is arranged in the defect removal device 13 by means of a jet nozzle 20'. However, depending on the design of the defect removal device 13, the fiber material end 19 ′ may be sucked directly by the suction device of the defect removal device 13. As shown in FIGS. 2 and 3, it may be removed by a special component of the defect removal apparatus 13. In order to cut the fiber material 2, 2 ′, a shearing machine as the cutting device 14 may be provided, or a special preliminary processing nozzle 22 (see FIG. 5) may be disposed in the defect removing device 13. According to FIG. 4, the preliminary processing of the fiber material ends 19, 19 ′ is performed directly by the air flow of the injection nozzles 20, 20 ′. The nozzles 20, 20 ′ and the clamping devices 21, 21 ′ are adjusted relative to one another so that the fiber material ends 19, 19 ′ are narrowed. The fiber material ends 19, 19 'are narrowed until they are approximately the same length as the fibers of the fiber material 2, 2'. The exchange device 9 after the fiber material end 19 has been preliminarily processed is prepared for the next exchange of the fiber material supply device.

  FIG. 5 shows the exchanging device 9 in which the clamping device 21 and the corresponding injection nozzle 20 and the clamping device 21 ′ and the corresponding injection nozzle 20 ′ are provided as fiber material supply units 10, 10 ′. Unlike FIG. 4, a nozzle 22 for preliminary processing is separately provided in the defect removing apparatus 13, and this nozzle is designed as a twist nozzle that is opened in a tangential direction for feeding air. Such an embodiment is advantageous when supplying twisted fiber material such as flyer roving. As a result, the preliminary processing nozzle 22 can twist in the direction opposite to the rotational direction of the roving. In order to form the fiber material end 19 after the suction of the defective fiber material 2, 2 ′ is finished, the fiber material 2, 2 ′ is untwisted by the pre-processing nozzle 22. As a result, the fiber materials 2, 2 'are cut together with the tensile effect by suction. At the same time, the fiber material end 19 is further narrowed by the pre-processing nozzle 22 with fibers still remaining in the fiber material supply unit 10, 10 ′. Thereby, the length of the thinned fiber material end 19 is the same as the length of the individual fibers. As described above, even if the fiber material end 19 is preliminarily processed pneumatically, an optimum seam can be formed. After the fiber material end 19 is formed and pre-processed, the pre-processed fiber material end 19 is sent to the splicer 12 using the injection nozzles 20 and 20 ′. Such a pneumatic prefabricated nozzle 22 is not limited to the twisted fiber materials 2 and 2 ′, but may be used for the fiber materials 2 and 2 ′ that are not twisted such as draft fibers. For this purpose, a nozzle having no twisting effect may be used as the preliminary processing nozzle 22.

  In an embodiment with fiber material supply units 10, 10 ′, a preliminary fiber material storage device 23 may be further provided to increase the reproducibility of the fiber material end 19. For this purpose, the fiber material supply unit 10, 10 ′ has two clamping devices 21, 21 ′ and one deflection bar 24. The position of the deflection bar 24 while the fiber material is normally fed is indicated by a one-dot chain line. After the defect is detected, the fiber materials 2, 2 ′ are cut between the fiber material supply units 10, 10 ′ and the draft unit 5 by being sandwiched by the clamping device 21 shown on the right hand. Is done. Then, while the right hand clamping devices 21 and 21 ′ are closed and the left hand clamping devices 21 and 21 ′ are opened, the fiber material 2 is bent by the bending rod 24, thereby forming a spare fiber material. Thereafter, the left hand clamping devices 21, 21 'are closed. The case where the fiber material ends 19, 19 'are fed to the splicer 12 after forming the spare fiber material is shown in the figure. When the right-hand fiber material clamping device 21, 21 'is opened, the injection nozzle 20, 20' is operated, and at the same time, the spare fiber material stored is supplied by returning the deflecting rod 24 to its original position. . After the fiber material has been sent, the fiber material clamping device 21, 21 'opens, so that the fiber material 2, 2' can be drawn directly from the fiber material supply device 3, 3 'by the draft unit 5. .

  In particular, it is advantageous because it includes a splicer 12, which is a pneumatic joining device in which the pieces are pivotably connected to each other. The prefabricated fiber material ends 19, 19 ′ may be fed to the corresponding splits of the splicer 12 by the fiber material supply unit 10, 10 ′. Then, the split of the splicer 12 may be pivoted toward the other one where the fiber material end 19 on the draft unit side still exists. Then, the two fiber material end portions 19 are joined by the twist nozzle. In this way, it is advantageous that the fiber material end 19 on the draft unit side need not be specially processed to join the fiber material end 19. This is because if the distance between the clamp line formed by the fiber material supply unit 10 and the clamp line formed by the pair of rollers 6a of the draft unit 5 is appropriate, the sharpness of the cut end can be reduced by simply tearing the fiber material 2, 2 ′. This is because the fiber material end portion 19 is formed. This spacing is slightly longer than the longest fiber length of the fiber material 2, 2 '.

  The present invention is not limited to the above embodiment. Further improvements and combinations within the scope of the claims are also within the protection scope of the invention as long as they are technically feasible and feasible.

DESCRIPTION OF SYMBOLS 1 Textile machine 2 Textile material 3 Textile material supply apparatus 4 Knitting machine 5 Draft unit 6 Pair of rollers 6a Pair of roller inlets 7 Twisting device (twisting mechanism)
8 Sensor 9 Exchanger 10 Textile material supply unit 11 Controller 12 Splicer (joining device)
13 Defect Removal Device 14 Cutting Device 15 Preliminary Processing Device 19 Fiber Material End 20 Injection Nozzle 21 Clamping Device 22 Preliminary Processing Nozzle 23 Preliminary Fiber Material Storage Device 24 Flexure Bar

Claims (16)

A fiber material supply device for supplying the first fiber material toward the draft unit;
A draft unit drafted to make the first fiber material thinner;
A processing unit that is connected downstream of the draft unit and includes a knitting machine that processes the first fiber material immediately after being drafted;
A first sensor for detecting a defect in the first fiber material;
A textile machine including a spinning knitting machine comprising:
A second fiber material supply device and an exchange device are connected to the draft unit,
When a defect in the first fiber material is detected, the second fiber material is supplied from the second fiber material supply device exchanged by the exchange device to the draft unit,
The exchange device includes a first fiber material supply unit for supplying the first fiber material, and a second fiber material supply unit for supplying the second fiber material,
A controller for alternately supplying the first and second fiber materials to the draft unit by alternately operating the first and second fiber material supply units;
A second sensor for detecting a defect in the second fiber material;
If a defect in the first fiber material or the second fiber material is detected, the controller stops the corresponding fiber material supply unit and starts the other fiber material supply unit.   The textile machine according to claim 1, wherein a splicer for joining fiber material ends is provided between the exchange device and the draft unit.   The textile machine according to claim 1 or 2, wherein at least one defect removing device for removing a detected defect is provided between the first and second fiber material supply units and the draft unit. .   The textile machine according to claim 3, wherein the defect removing device includes a cutting device for cutting the first and second fiber materials.   The textile machine according to claim 3 or 4, wherein the defect removing device includes a pre-processing device for pre-processing a fiber material end portion.   Each of the said 1st and 2nd textile material supply unit is a textile machine as described in any one of Claims 1-5 which has a pair of roller.   Each of the said 1st and 2nd textile material supply unit is a textile machine as described in any one of Claims 1-5 which has a clamp apparatus and an injection nozzle.   The textile machine according to claim 7, wherein the clamping device is connected to a device for storing spare fiber material.   Each of the first and second fibrous material supply units has two pairs of rollers capable of making changes in the draft of the first and second fibrous materials. The textile machine according to Item.   The textile machine according to any one of claims 1 to 9, further comprising a twisting device connected upstream of a processing unit including the knitting machine. A method of supplying a fiber material to a draft unit in a fiber spinning and knitting process,
Supplying a first fiber material from a fiber material supply device to the draft unit;
Draft in the draft unit,
Immediately after the drafting, processing including knitting in a processing unit connected downstream of the draft unit is performed,
Supplying the first fiber material monitored for defects by the sensor to the draft unit ;
A second fiber material supply device and an exchange device are connected to the draft unit;
When a defect of the first fiber material is detected, the second fiber material is supplied from the second fiber material supply device exchanged by the exchange device to the draft unit,
The first and second fiber materials are respectively supplied from the first and second fiber material supply devices exchanged by the exchange device,
The first and second fiber materials from the first and second fiber material feeders are monitored for defects;
When a defect in the first fiber material or the second fiber material is detected, the fiber supply from the corresponding fiber material supply unit is stopped and the fiber supply from the other fiber material supply unit is started. ,Method.   12. The method of claim 11, wherein after the first or second fibrous material is cut, defects detected in the first or second fibrous material are removed.   The fiber material end of the first or second fiber material to be supplied and the fiber material end of the first or second fiber material to be newly supplied are before or during the supply stop. The method according to claim 11 or 12, wherein the methods are joined.   The method of claim 13, wherein a preliminary fiber material is formed prior to bonding.   15. A method according to claim 13 or 14, wherein the fiber material ends are drafted prior to bonding. 16. A method according to any one of claims 11 to 15, wherein the first and second fibrous materials are reinforced by a twisting device prior to processing including the knitting.

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