JP4445437B2 - Partial warping system and partial warping method - Google Patents

Description

  The present invention relates to a configuration of a partial warping system including a partial warping machine and a partial warping method.

  Conventionally, a partial warping method is known as one of the warping methods for preparation of weaving. In this partial warping method, a warp having a tapered winding surface is provided by drawing and supplying yarn from a plurality of yarn supply packages (for example, about several tens to several hundreds) mounted on a warping creel. A first band is formed at the end of the drum on the taper side. That is, one yarn layer having a width smaller than the width in the axial direction of the drum is wound up while being skewed with respect to the shaft of the diameter adjusting drum.

  Next, a second band is formed in the same manner so as to be adjacent to the first band. Further, the above operation is repeated until the necessary total number of yarns is wound on the warping drum, thereby forming a partial warping beam having a plurality of bands. Then, the yarn is simultaneously drawn from the partial warp beam wound with the total number of yarns necessary for weaving to form one weaving beam (or one weaving beam from a plurality of partial warp beams. Can also be formed). This partial warping can be used to prevent an increase in the size of equipment and is suitable for small-quantity, multi-product production.

  As a configuration for performing the partial warping as described above, for example, there is a partial warping facility disclosed in Patent Document 1. The partial warping equipment of Patent Document 1 includes a bobbin creel as a warping creel, and this bobbin creel is configured as a replaceable creel using a conveyor in the form of a rotary table. Further, two or more bobbin creel bobbin mounting portions are provided corresponding to each thread drawing portion, and the bobbin mounting portion is configured to be selectively movable to the operating position by the rotary table.

  The partial warping facility of Patent Document 1 includes an automatic cutting and coupling device that cuts a yarn from the bobbin side and couples the yarn to another bobbin. This automatic cutting and coupling device is provided with one unit for a plurality of yarn pull-out portions arranged horizontally in a row (see FIG. 4 of Patent Document 1), and this unit includes a plurality of yarn pull-out portions. The warp is cut as necessary to join the warp after switching. In other words, one automatic cutting and combining device is in charge of a plurality of warps, and cuts and combines warps while moving as necessary.

The configuration of Patent Document 1 can change the yarn series (color and yarn type) forming the next warp band yarn layer every time one warp band layer (one band) is finished with a partial warp machine. . Therefore, it is possible to form a larger repeat by using two or more warp band layers having a number of yarns smaller than the number of repeats (that is, a unit of periodic repetition of the warp color pattern constituting the pattern), It can provide compact equipment that does not require a large production floor. Alternatively, the productivity can be increased by winding a warp band layer having a greater number of yarns than the number of repeat yarns.
Japanese Patent No. 3492335 (0005 to 0006, 0027, bobbin creel 9, conveyor 10, thread drawing unit 14, bobbin mounting unit 11, automatic cutting and coupling device 18)

  Further, in Patent Document 2, in consideration of a pattern after weaving, a plurality of yarn supply packages are continuously wound while measuring various color yarns and yarn types to a predetermined length in the longitudinal direction of the yarn. Disclosed is a warping method in a partial warping machine in which a single weaving beam is formed after partial warping is performed by supplying a warp creel to a predetermined position and wound around a partial warping beam. In the warping method of Patent Document 2, yarn length measurement is performed by a yarn length measurement storage device.

According to Patent Document 2, it is possible to obtain a partial warp beam that correctly reproduces a patterned pattern after weaving by simply placing the wound yarn supply package at a predetermined position of the warping creel. In addition, it is possible to manufacture a fabric with various patterns.
Japanese Patent Application Laid-Open No. 2004-156185 (Summary, FIG. 1, Thread length storage device 30)

  The configuration of Patent Document 1 selects the yarn by moving the selected bobbin to the yarn drawing portion with the rotary table, so that the configuration of the yarn selection device becomes large and the equipment cost increases. In addition, since a single automatic cutting and joining device moves and takes charge of a plurality of warps to cut and join warps, it takes a considerable amount of time including waiting time when switching a large number of warps at once. As a result, idle time increases and production efficiency decreases.

  Further, the configuration of Patent Document 1 only discloses that the yarn series can be changed every time one band is wound, and the color of the warp and the yarn in one band (while one band is being formed) Patent Document 1 makes no mention of changing the species.

  On the other hand, using the method of Patent Document 2 is advantageous in that it is possible to change the color and yarn type in the length direction of the warp in one band, and it is possible to produce various patterned fabrics. However, this method requires an extra step of manufacturing the yarn supply package in which the color and the yarn type are changed as many as the number of yarns for the entire width of the fabric before the partial warping step. Increases and increases costs.

  Further, in the method of Patent Document 2 in which a yarn feeding package is wound one by one by switching colors and yarn types while measuring a length with a yarn length measuring storage device, for example, the switching portion for switching the yarn is made up of a plurality of warps. Even if the yarn supply packages are wound so that they match, due to errors during length measurement and changes in conditions such as temperature and humidity during winding, there is In many cases, the positions do not match and shift. In particular, since this positional deviation is of a nature that accumulates as the winding of the yarn feeding package proceeds, it is not uncommon for large positional deviations to occur in some cases. As a result, the pattern is collapsed or disturbed, and it becomes difficult to obtain the intended pattern satisfactorily.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

◆ According to the first aspect of the present invention, a partial warping system configured as follows is provided. Partial warping comprising: a warping creel capable of setting a plurality of yarn supplying packages for supplying warps; and a warping drum for simultaneously winding a plurality of warps supplied from the warping creel to form a band. Including the opportunity. A yarn switching mechanism comprising a yarn selection device and a yarn joining device that joins the warp yarn selected by the yarn selection device, and the number of yarns in at least one band between the warping creel and the warping drum Install as many as. The warping creel is configured so that a package group consisting of a plurality of the yarn supply packages having different colors or yarn types can be set corresponding to each of the yarn switching mechanisms. Yes. The warp group unwound from the package group is supplied to the yarn selection device of the yarn switching mechanism, and the yarn selection device selects at least one from the supplied warp group and the warp drum side Configured to supply.

  Thereby, like patent document 1, after finishing a band, before starting to form the next band, a warp can be changed with a thread change mechanism. Therefore, even if the number of periodic repeating units for forming a pattern does not match the number of yarns in one band, the pattern can be realized without any problem, so that it can be a compact and highly productive partial warping system, or The degree of freedom of expression of the pattern can be increased.

  Also, unlike Patent Document 1, one yarn splicing device only needs to be responsible for splicing a single warp. Therefore, even when colors and the like are switched simultaneously for a large number of warps, the productivity can be improved. Can be made. Further, since the yarn joining device and the warp are in one-to-one correspondence, the control of the yarn joining device can be simplified. Furthermore, the warping creel is configured to supply the warp group unwound from the package group to the yarn selection device and select the warp from the warp group. It is not a large-scale configuration as described in Document 1, the equipment cost can be reduced, the time required for switching the yarn selection can be shortened, and further, the energy consumed by the yarn selection device can be saved.

  In the partial warping system, the warping creel is preferably a fixed creel.

  Thereby, the structure of a warping creel can be simplified and equipment cost can be reduced.

  In the partial warping system, the warp is wound on a predetermined length of the warp drum by operating all or a selected part of the plurality of yarn switching mechanisms. It is preferable to provide a control device that performs control so as to switch the selection of the warp sent to the drum side.

  As a result, the color and type of warp constituting the band can be switched during the winding length of the band. Therefore, as in Patent Document 2, more various patterns can be realized.

  In addition, unlike Patent Document 2, it is possible to independently and simultaneously switch colors and yarn types for each one of the plurality of warps while simultaneously winding the number of warps of one band simultaneously. . Therefore, since the complicated preparation process which forms a package for the number of yarns of one band as in Patent Document 2 can be omitted, lead time, man-hours, and cost can be reduced. Further, by the simultaneous winding and simultaneous switching described above, the relative error of the position of the warp switching position in one band can be reduced as compared with the case of Patent Document 2, and the collapse and disturbance of the pattern appearing can be reduced. can do.

  ◆ The partial warping system is preferably configured as follows. The partial warping machine includes a motor that can be rotationally driven while controlling the angle of the warping drum. The control device rotates the warping drum by an angle corresponding to a preset switching position and then operates all or a selected part of the yarn switching mechanism to switch the selection of the warp. It is configured.

  In this configuration, the position to switch each warp is determined by the rotation angle of the warp drum that simultaneously winds the number of warps for one band. Accordingly, the relative shift between the warp switching positions in one band can be further reduced, and the warp can be accurately expressed without causing the intended pattern to collapse. In addition, a special length measuring device is not necessary, which can contribute to simplification of the configuration.

◆ According to the second aspect of the present invention, the following partial warping method is provided. Warp yarns are supplied from a plurality of yarn supply packages mounted on the warping creel, and these are simultaneously wound around a warping drum to form a band. On the warping creel, a package group consisting of a plurality of yarn supply packages in which at least one of color or yarn type is different for each package is set in the same number as the number of yarns in one band. A warp group unwound from the package group is supplied to each of the yarn selecting devices provided one by one corresponding to each package group. At each yarn selecting device, at least one yarn is supplied from the supplied warp group. The warp is selected and supplied to the warping drum. Further, a yarn joining device for joining the yarns selected by the yarn selecting device is provided so as to correspond to the yarn selecting device on a one-to-one basis.

  Thereby, like patent document 1, after finishing a band, before starting to form the next band, it is possible to switch the warp between the yarn selection device and the yarn joining device. Therefore, even if the number of periodic repeating units for forming the pattern does not match the number of yarns in one band, the pattern can be realized without any problem, so that the equipment can be made compact and the productivity can be improved, or the pattern The degree of freedom of expression can be increased.

  Further, unlike Patent Document 1, one yarn splicing device is only required to handle one warp splicing. Therefore, a large number of warps can be switched at the same time, and productivity can be improved. it can. Further, since the yarn joining device and the warp are in one-to-one correspondence, the control of the yarn joining device can be simplified. Furthermore, the warping creel is configured to supply the warp group unwound from the package group to the yarn selection device and select the warp from the warp group. It is not a large-scale configuration as described in Document 1, the equipment cost can be reduced, the time required for switching the yarn selection can be shortened, and further, the energy consumed by the yarn selection device can be saved.

  In the partial warping method, the warping creel is preferably a fixed creel.

  Thereby, the structure of a warping creel can be simplified and equipment cost can be reduced.

  In the partial warping method, the warp drum and the yarn splicer corresponding to all or a selected part of one band of warps are wound while the warp is wound on the warp drum by a predetermined length. It is preferable to switch the warp supplied to the warping drum depending on the device.

  As a result, the color and type of warp constituting the band can be switched during the winding length of the band. Therefore, as in Patent Document 2, more various patterns can be realized.

  In addition, unlike Patent Document 2, it is possible to independently and simultaneously switch colors and yarn types for each one of the plurality of warps while simultaneously winding the number of warps of one band simultaneously. . Therefore, since the complicated preparation process which forms a package for the number of yarns of one band as in Patent Document 2 can be omitted, lead time, man-hours, and cost can be reduced. Further, by the simultaneous winding and simultaneous switching described above, the relative error of the position of the warp switching position in one band can be reduced as compared with the case of Patent Document 2, and the collapse and disturbance of the pattern appearing can be reduced. can do.

  ◆ The partial warping method is preferably configured as follows. The warping drum is driven by a motor that can be rotationally driven while controlling the angle. After the warp drum is rotated by an angle corresponding to a preset switching location, all or selected parts of the yarn selection device and the yarn joining device are operated to switch the selection of warp yarns.

  In this method, the rotation of the warp drum that simultaneously winds up the number of warp yarns for one band is controlled by controlling the rotation angle of the motor, and the switching position of each warp yarn is positioned. Accordingly, the relative shift between the warp switching positions in one band can be further reduced, and the warp can be accurately expressed without causing the intended pattern to collapse. In addition, a special length measuring device is not necessary, which can contribute to simplification of the configuration.

  Next, embodiments of the invention will be described. FIG. 1 is a perspective view showing an overall configuration of a partial warping system according to an embodiment of the present invention, and FIG. 2 is an enlarged perspective view showing a state in which warp groups from a package group are supplied to a yarn switching mechanism, 3 is an overall plan view, and FIG. 4 is a longitudinal sectional view showing the state and arrangement of the thread switching mechanism.

  FIG. 1 shows an overall perspective view of a partial warping system. This partial warping system 1 includes warping creels 10 and 10 on which a large number of yarn feeding packages 5 and 5. A partial warper 2 including a warping drum 11 for winding the warp Y unwound from 64 in a state of being arranged in parallel to form a band B. That is, in the partial warper 2 of this embodiment, the number of yarns in one band is set to 64.

  Further, the partial warping system 1 includes yarn switching boxes 12 and 12 as accommodating housings that accommodate a large number of yarn switching mechanisms 3 between the warping creels 10 and 10 and the warping drum 11. The warping creels 10 and 10 and the yarn switching boxes 12 and 12 are provided as a pair of left and right.

  Each of the warping creels 10 and 10 is a parallel creel, and the yarn supply package 5 mounted on the creel is configured as a fixed creel that is not moved. As shown in FIGS. 3 and 4, in this embodiment, the warp creel 10 can place a total of 192 yarn supply packages 5, each having 24 rows in the horizontal direction and 8 levels in the vertical direction. (384 in the two on the left and right).

  As shown in FIG. 1, the yarn feeding package 5 is a cone-shaped package, and several yarn feeding packages 5 (six yarn feeding packages 5 in this embodiment) having different yarn colors or yarn types from each other are provided. In summary, one package group 4 is formed. For example, when different yarn colors are used, the first yarn supply package 5 is red, the second is yellow, the third is blue, and so on. The warping creel 10 is configured so that the number of package groups 4 corresponding to the number of yarns constituting one band B can be set. Specifically, since the number of yarns of the band B of the partial warper 2 of the present embodiment is 64 as described above, 64 package groups 4 (64 × 4 in terms of the number of yarn supply packages 5). 6 = 384). Each of the 64 package groups 4 is provided so as to correspond to each of the later-described thread switching mechanisms 3 provided in the same manner.

  In addition, each of the yarn switching boxes 12 and 12 is divided into a total of 32 sections, the inner space being divided into 4 rows in the horizontal direction and 8 levels in the vertical direction. As shown in FIG. 2, the yarn switching mechanism 3 including a yarn selection device 7 and a knotter (yarn joining device) 8 is accommodated one by one.

  That is, a total of 64 sections P are formed in the left and right thread switching boxes 12 and 12, and the thread switching mechanism 3 (the thread selecting device 7 and the knotter 8) is disposed in each of them. Eventually, the same number of yarn switching mechanisms 3 as the number of yarns in one band of the partial warper 2, that is, a total of 64 yarn switching mechanisms 3 are arranged. Hereinafter, in order to identify each of the 64 yarn switching mechanisms 3, numbers 1 to 64 will be assigned and described (# 1 to # 64).

  2 is a sensor for detecting yarn breakage, and one sensor 9 is arranged for each yarn switching mechanism 3.

  As shown in FIGS. 2 to 4, warp yarn groups Y, Y... That are unwound from the corresponding package group 4 are supplied to the respective yarn selection devices 7 of the yarn switching mechanism 3. That is, from the six yarn supply packages 5 of various yarn colors constituting the corresponding package group 4, a total of six warp yarns Y, Y... Are supplied to the yarn selecting device 7 of the corresponding yarn switching mechanism 3 via an appropriate yarn guide. In FIG. 1, for easy understanding of the drawing, the middle part of the yarn path from the yarn supply package 5 of the warping creel 10 to the yarn switching box 12 is not shown.

  2 and 3, one of the warp groups Y, Y... Supplied to the yarn selection device 7 of each yarn switching mechanism 3 is selected as appropriate by the yarn selection device 7 (or Only a plurality of warps Y are supplied to the warping drum 11 side.

  The above-described yarn selection device 7 has the same configuration as the yarn selection device disclosed in Patent Document 2, and will be briefly described below with reference to FIGS. The yarn selection device 7 includes six yarn guides 17, 17... Corresponding to the number (6) of warp yarns Y, Y. A cylinder (not shown) that can be individually turned up and down, a suction nozzle (suction means) (not shown) that can suck the warp Y, and hold the yarn end of the warp Y against the suction to stand by. And a holding roller 18 capable of being used.

  Each yarn guide 17 is provided in a cylindrical shape, and the supplied warp Y can be inserted into the inside thereof. Each of the six thread guides 17 can be independently switched between the raised position (selected position) and the lowered position (selection release position or retracted position) by the cylinder.

  The knotter 8 is provided immediately downstream of the yarn selecting device 7. Since the configuration of the knotter 8 is a general one, for example, a known knotter disclosed in Patent Document 2 can be adopted, and detailed description thereof is omitted.

  Hereinafter, switching of the warp Y by the yarn switching mechanism 3 (yarn selection device 7 and knotter 8) having this configuration will be described. As shown in FIG. 2, the six warp yarns Y, Y,... Introduced into the yarn selection device 7 of each yarn switching mechanism 3 are the yarn guides 17, 17,. One is inserted through each. Then, the yarn selection device 7 selects one or a plurality of warp yarns Y out of the six yarns, and the yarn guide 17 corresponding to the selected warp yarn Y is set to the upper selection position and the unselected warp yarns The cylinder is controlled so that the Y yarn guide 17 is in the lower retracted position.

  Here, when the yarn guide 17 is switched to the selected position, the warp yarn Y guided by the yarn guide 17 can deliver its yarn end to the downstream knotter 8. On the other hand, when the yarn guide 17 is in the retracted position, the yarn end of the warp Y is not delivered to the knotter 8 but is held by the holding roller 18 and waits.

  In the yarn switching mechanism 3 configured as described above, when the warp Y currently selected and supplied to the warping drum 11 is switched to the warp Y of a different color (or yarn type), the cylinder is driven and the current supply is performed. The yarn guide 17 corresponding to the warp Y that has been lowered is lowered to the retracted position, while the yarn guide 17 that guides the newly selected warp Y is raised from the retracted position to the selected position. Then, the current warp Y is cut by the knotter 8, and the cut yarn end (yarn end on the warping drum 11 side) and the new warp Y yarn end are spliced. Note that the yarn end of the warp Y that is no longer selected (the yarn end on the yarn supply package 5 side) is automatically held by the holding roller 18 and waits in preparation for the warp Y being selected again later. . In this way, the color (or yarn type) of the warp Y supplied to the warping drum 11 can be switched.

  The warp yarns Y, Y... Selected by the yarn selection device 7 and drawn out from the 64 yarn switching mechanisms 3 are sent to the width setting bar 13 as shown in FIG. Then, the band B is wound by a predetermined length by the warping drum 11 rotating in the direction of the thick arrow in FIG.

  The partial warping machine 2 includes an electric motor (motor) 19 for driving the warping drum 11, and the electric motor 19 is configured as a motor capable of angle control, such as a pulse motor or a servo motor. Has been. The electric motor 19 is connected to a controller (warping machine controller) 20 of the partial warping machine 2, and the rotation and stop of the electric motor 19 are controlled by the warping machine controller 20. The warping machine controller 20 is connected to a host system controller (control device) 21 for overall control of the partial warping system 1.

  When the band B having a predetermined length is formed by rotational driving of the warping drum 11 by the electric motor 19, the warping drum 11 is moved in the axial direction by an actuator (not shown), and 64 yarns are again driven by the electric motor 19. Y is wound up to form the next band B. By repeating this several times to several tens of times, a partial warping beam having warps for the entire width of the fabric can be obtained, and a weaving beam is formed by rewinding this with a rewinding machine. Provided. A single weaving beam can be formed by aligning the warp wound around a plurality of partial warping beams.

  In the partial warping system 1 of the present embodiment, as shown in FIG. 1, the system controller 21 is electrically connected to each of the 64 yarn switching mechanisms 3 (in FIG. 1, # 1 to # 1). 8, only the input of a signal to the yarn switching mechanism 3 is illustrated), and the yarn switching mechanism 3 can be individually controlled. Although not shown in detail, in the present embodiment, the system controller 21 is configured in a known microcomputer type, and includes a CPU as a calculation means and a ROM and a RAM as storage means, as well as the warp controller 20 and the yarn. An output unit for outputting a control signal to the switching mechanism 3 is provided.

  The system controller 21 is preset with information on the winding length of the band B, and this length information is stored in a storage means such as a RAM. Then, the system controller 21 calculates the rotation angle of the warping drum 11 corresponding to the stored length, and transmits a command to the warper controller 20 to drive the warping drum 11 by this rotation angle. Receiving this command, the warper controller 20 controls to drive the electric motor 19 of the partial warper 2 by the commanded rotation angle. Thus, the warping drum 11 is rotated by a predetermined rotation angle, and the 64 warp yarns Y can be simultaneously wound to form a band B having a predetermined length.

  Further, the system controller 21 changes the information (switching information) of the warp Y to which the warp Y is switched and the warp Y to be switched to each warp Y of one band B or the warps Y of a plurality of bands B according to the pattern after weaving. This is configured so that the set information can be stored in a storage means such as a RAM.

  As an example of the above switching information, “At the beginning of winding, the 1st to 64th warps Y are all blue. And at the point 180 cm from the beginning of winding, the 6th and 32nd warps. “Y is switched to yellow. Also, at the point 230 cm from the start of winding, the 6th and 35th warps are switched to red.” The warp numbers (Nos. 1 to 64) are numbers counted from one end in the width direction of the warp yarns Y, Y,... This corresponds to the numbers assigned to the mechanism 3 (Nos. 1 to 64, # 1 to # 64).

  Then, the system controller 21 rotates the warping drum 11 by a rotation angle corresponding to the distance from the beginning of winding to the switching position based on the switching information, and then the yarn switching mechanism 3 corresponding to the warp Y to be switched. Only the yarn selection device 7 and the knotter 8 are selectively operated to switch the warp Y.

  A specific example of control based on the above switching information example will be described. At first, the system controller 21 sends a signal to the 1st to 64th yarn switching mechanisms 3, and any one of the 1st to 64th warps Y is selected. Also, the blue warp Y is selected and supplied. Thereafter, the system controller 21 drives the electric motor 19 via the warping machine controller 20 to start winding the warp Y around the warping drum 11 until the position of the yarn switching mechanism 3 corresponds to a point 180 cm from the start of winding. The warping drum 11 is driven and stopped. Thereafter, the system controller 21 sends a yarn switching command signal to the 6th and 32nd yarn switching mechanisms 3 to switch the warp Y from blue to yellow for the 6th and 32nd warp Y.

  The yarn switching mechanisms 3 other than No. 6 and No. 32 do not perform the switching operation. That is, at the point 180 cm from the beginning of winding, only the 6th and 32nd thread switching mechanisms 3 out of the 64 thread switching mechanisms 3 are selectively operated. However, this is because the thread switching information to that effect is set. For example, when thread switching information is set to switch all of the 1st to 64th colors to red, the 1st to 64th is set. All the 64 thread switching mechanisms 3 up to No. are operated.

  After completion of the switching, the electric motor 19 is driven again, and this time, the warp drum 11 is driven and stopped until the yarn switching mechanism 3 reaches a rotation angle located at a point of 230 cm from the start of winding. Thereafter, the system controller 21 sends a yarn switching command signal to the 6th and 35th yarn switching mechanisms 3 to selectively operate them, and the 6th and 35th warps Y that the yarn switching mechanism 3 takes charge of are red in the warp. Switch Y.

  By controlling in this way, partial warping is performed while changing the color and yarn type in the length direction for each warp Y that constitutes the band B while one band B is being wound. It is possible to realize various patterns. Further, compared to the configuration shown in Patent Document 2, a preparation process for forming a special yarn supply package by the number of warp yarns corresponding to the entire width of the woven fabric can be eliminated. it can.

  Further, since the switching portion is positioned by controlling the rotation angle of the warping drum 11, there is little deviation between the switching positions of the warp Y in one band B, and the intended pattern can be accurately expressed. Further, since the length is measured at the rotation angle of the electric motor 19 of the warping drum 11, no special length measuring device is required, which can contribute to the simplification of the configuration.

  However, in this embodiment, the yarn switching mechanism 3 is not operated in the middle of forming one band B, and all or a part of the yarn switching mechanism 3 is operated all at once after the finishing of one band B. In this case, the same effect as in Patent Document 1 can be obtained. That is, each time one band B is finished by the partial warp machine 2, the thread series (color and thread type) forming the next band B is switched by the thread switching mechanism 3 to thereby change the color of the warp that forms the pattern. The unit of the periodic repetition of the pattern is not affected by the number of yarns in one band. Therefore, a more free pattern can be expressed or productivity can be improved.

  Further, in the present embodiment in which the number of knots 8 corresponding to the number of yarns in one band is provided, each knotter 8 only needs to handle one warp Y constituting the band B, and a large number of warp Ys can be simultaneously transmitted. When switching to, it can be carried out in a short time by being shared by a large number of knotters 8. In addition, since one knotter 8 is in charge of switching one warp Y on a one-to-one basis, the control on the system controller 21 side can be simplified. Further, the configuration of the warping creel 10 and the yarn selection device 7 can be simplified and made compact compared with the configuration of Patent Document 1 in which the bobbin is rotated by a rotary table in the replacement creel method to select the yarn. The energy (electric power) consumed for selecting the yarn can also be reduced.

  As described above, the partial warping system 1 of the present embodiment includes the warping creels 10 and 10 capable of setting a plurality of yarn supplying packages 5 for supplying the warp Y, and the warp creel 10 and 10 for supplying the warp creel. A partial warping machine 2 including a warping drum 11 for simultaneously winding a plurality of warped yarns Y to form a band B. A yarn switching mechanism 3 including a yarn selecting device 7 and a knotter 8 for joining the warp Y selected by the yarn selecting device 7 is provided between the warping creel 10 and the warping drum 11. The number corresponding to the number of yarns of one band (64 yarns), that is, only 64 yarns are installed. In addition, the warping creel 10 sets a package group 4 composed of a plurality of yarn supply packages 5, 5... Having different colors or yarn types corresponding to each of the yarn switching mechanisms 3. Is configured to be possible. The warp groups Y, Y... Unwound from the package group 4 are supplied to the yarn selection device 7 of the yarn switching mechanism 3, and the yarn selection device 7 is supplied with the supplied warp groups Y, Y. ..., at least one warp Y is selected and supplied to the warping drum 11 side.

  Thus, similar to the above-mentioned Patent Document 1, every time one band B is finished by the partial warping machine 2, the yarn series forming the next band B can be switched by the yarn switching mechanism 3. Therefore, it is possible to form a larger repeat by using two or more bands B having the number of yarns smaller than the number of repeats (that is, the unit of periodic repetition of the warp color pattern constituting the pattern), and a wide production floor. Can provide compact equipment that does not require Alternatively, the productivity can be increased by winding a warp band layer having a greater number of yarns than the number of repeat yarns.

  Furthermore, in the present embodiment, the warping creel 10 is a fixed creel as compared with the above-mentioned Patent Document 1, and the package group 4 to the warp group consisting of a plurality of yarn feeding packages 5. Y, Y... Is pulled out and supplied to the yarn selection device 7 of the yarn switching mechanism 3. Therefore, it is not a large-scale configuration as in Patent Document 1 (where the bobbin is moved by a rotary table for thread switching), and the equipment cost and power consumption can be reduced. Further, since the knotters 8 are provided in a number corresponding to the number of yarns of one band B (64 yarns), it is sufficient for the knotters 8 to be responsible for only one warp Y, and a number of yarn series changes. Can be performed all at once in a short time, and the control for thread switching can be simplified.

  In the partial warping system 1, all or 64 of the 64 yarn switching mechanisms 3 are selected while the band B is formed on the warping drum 11 (while the warp Y is wound up by a predetermined length). A system controller 21 is provided as a control device that controls to switch the selection of the warp Y to be sent to the warping drum 11 by operating a part thereof.

  Accordingly, the band B can be formed by changing the color and thread type in the length direction independently of each other and simultaneously in parallel for each warp Y constituting the band B. Can be realized. Further, as shown in Patent Document 2, there is also a preparatory process for forming a large number of yarn supply packages by continuously winding various colored yarns and yarn types to a predetermined length in the longitudinal direction of the yarn. Since it can be unnecessary, the partial warping process can be greatly simplified. Furthermore, since a plurality of warps Y, Y,... Are wound around the warp drum 11 at the same time, the color and thread type are individually switched for each warp Y in the middle. Therefore, it is difficult to cause the positional shift of the switching points, and a good pattern can be obtained.

  The partial warping machine 2 is configured to include an electric motor 19 that can be rotationally driven while the angle of the warping drum 11 is controlled. Then, the system controller 21 in the partial warping system 1 rotates all the warping drums 11 by an angle corresponding to a preset switching point, and then selects all or 64 of the yarn switching mechanisms 3. The selection of the warp Y can be switched by operating a part.

  Therefore, since the switching position of each warp Y is positioned by controlling the rotation angle of the warping drum 11 that simultaneously winds up 64 warps Y of one band B, more direct positioning of the switching position is realized. That is, the relative shift between the switching positions of the warp Y in one band B is further reduced, and the intended pattern can be accurately expressed during weaving. In addition, since the electric motor 19 of the warping drum 11 has a length measuring function, it is not necessary to provide a special length measuring device, which can contribute to simplification of the structure.

  In this embodiment, partial warping is performed by the following method. .. Are supplied from a plurality of yarn supply packages 5,... Mounted on the warping creel 10, and wound around the warping drum 11 to form a band B. The warping creel 10 includes a package group 4 composed of a plurality of yarn supply packages 5, 5... With different colors or yarn types for each package. 64 groups). The warp groups Y, Y,... Unraveled from the package group 4 are supplied to each of the yarn selection devices 7 provided one by one corresponding to each package group 4. , At least one warp Y is selected from the supplied warp groups Y, Y... And supplied to the warping drum 11 side. Further, a knotter 8 for piecing the yarn selected by the yarn selection device 7 is provided so as to correspond to the yarn selection device 7 on a one-to-one basis.

  As a result, the thread series that forms the next band B can be switched by the thread switching mechanism 3 every time one band B is finished by the partial warping machine 2 as described above. In addition, the same effect can be realized with simpler equipment than that of Patent Document 1, and the time required for thread switching can be shortened. In particular, in this embodiment, since the warping creel 10 is a fixed creel, the configuration of the warping creel can be simplified.

  Further, in the above partial warping method, all or a selected one of the warps Y, Y,... Constituting one band is in the middle of winding the warp Y to a predetermined length on the warp drum 11. The warp supplied to the warping drum 11 can be switched by the yarn selecting device 7 and the knotter 8 (that is, the yarn switching mechanism 3) corresponding to the section.

  In this case, in the same manner as described above, the band B is formed while changing the color and the yarn type in the length direction independently and simultaneously in parallel for each warp Y constituting the band B. It is possible to realize various patterns. In addition, an accurate pattern with little deviation can be obtained during weaving.

  The warping drum 11 is driven by an electric motor 19 that can be rotationally driven while controlling the angle. After the warping drum 11 is rotated by an angle corresponding to a preset switching position, the warping drum 11 is rotated. The selection of the warp Y is switched by operating all or a selected part of the yarn selection device 7 and the knotter 8.

  Accordingly, the rotation of the warp drum 11 for simultaneously winding the warp yarns Y, Y... For one band B is controlled by controlling the rotation angle of the electric motor 19, and the switching position of each warp Y is controlled. Will be positioned. Therefore, the relative shift between the switching positions of the warp Y in one band B can be further reduced, and the desired pattern can be accurately expressed without causing a collapse or the like. Further, a special length measuring device as in the case of Patent Document 2 is not necessary, which can contribute to simplification of the configuration.

  Although the preferred embodiment of the present invention has been described above, the above embodiment can be modified as follows, for example.

  (1) Although the knotter 8 is employed as the yarn joining device in the above embodiment, other yarn joining devices such as a splicer may be employed instead of the knotter 8. Further, the warping creel 10 is a parallel creel in this embodiment, but other arrangement methods may be adopted. Furthermore, a tension device that adjusts the tension of the warp Y may be provided at an appropriate position in the warp creel 10 or the warp Y path.

  (2) In the above embodiment, 64 yarn switching mechanisms 3 equal to the number of yarns in one band are installed, but at least 64 yarn switching mechanisms 3 may be used. For example, a spare yarn switching mechanism 3 is added in case of failure. As a result, of course, the total number of the yarn switching mechanisms 3 may exceed the number of yarns in one band.

  (3) In the above embodiment, the yarn switching mechanism 3 is constituted by the yarn selecting device 7 and the knotter 8, but the yarn switching mechanism 3 may be further provided with a yarn storage device capable of storing the warp Y. In this case, since the time for stopping the rotation of the warping drum 11 for switching the warp Y during the formation of the band B can be reduced or zero, productivity can be improved.

  (4) A single warp Y is not necessarily selected by each yarn selection device 7. That is, if two of the six yarn guides 17 and 17 are set to the selected position in the yarn selecting device 7, it is possible to simultaneously supply two warp yarns Y and Y to the warping drum 11 side. Thereby, more various patterns can be realized.

  (5) The number of yarns of one band B in the partial warping machine 2 and the number of yarn supply packages 5, 5... Constituting one package group 4 are not limited to the above. It can be changed as appropriate according to the specifications. In addition, the colors or combinations of yarn types of the yarn supply packages 5, 5... Are arbitrary, and depending on the pattern or texture desired to be realized, only the colors can be switched among the same yarn types or the yarns of the same color Only the type can be switched, the color and the thread type can be switched at the same time, or various threads can be switched as necessary.

The perspective view which showed the whole structure of the partial warping system which concerns on one Embodiment of this invention. The enlarged perspective view which shows a mode that the warp group from a package group is supplied to a thread | yarn switching mechanism. Similarly the whole top view. The longitudinal cross-sectional view which shows the mode and arrangement | sequence of a thread | yarn switching mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Partial warping system 2 Partial warping machine 3 Yarn switching mechanism 4 Package group 5 Yarn supply package 7 Yarn selection device 8 Notter (yarn joining device)
DESCRIPTION OF SYMBOLS 10 Warping creel 11 Warping drum 12 Thread switching box 13 Width determining rod 19 Electric motor (motor)
20 Warping machine controller 21 System controller (control device)
Y warp

Claims (8)

Partial warping comprising: a warping creel capable of setting a plurality of yarn supplying packages for supplying warps; and a warping drum for simultaneously winding a plurality of warps supplied from the warping creel to form a band. In the partial warping system including the warp
A yarn switching mechanism comprising a yarn selection device and a yarn joining device that joins the warp yarn selected by the yarn selection device, and the number of yarns in at least one band between the warping creel and the warping drum As many as
The warping creel is configured so that a package group consisting of a plurality of the yarn supply packages having different colors or yarn types can be set corresponding to each of the yarn switching mechanisms. And
The warp group unwound from the package group is supplied to the yarn selection device of the yarn switching mechanism, and the yarn selection device selects at least one from the supplied warp group and the warp drum side Partial warping system, characterized in that it is configured to supply to   The partial warping system according to claim 1, wherein the warping creel is a fixed creel. The partial warping system according to claim 1 or 2,
While the warp is being wound on the warp drum by a predetermined length, all or a selected part of the plurality of yarn switching mechanisms are operated to switch the selection of the warp sent to the warp drum. A partial warping system comprising a control device for controlling in such a manner. The partial warping system according to claim 3,
The partial warping machine includes a motor that can be rotationally driven while controlling the angle of the warping drum,
The control device rotates the warping drum by an angle corresponding to a preset switching point, and then operates all or a selected part of the yarn switching mechanism to switch the selection of the warp. Partial warping system characterized in that it is configured. A partial warping method in which warp yarns are supplied from a plurality of yarn feeding packages mounted on a warping creel and wound simultaneously on a warping drum to form a band.
In the warping creel, a package group consisting of a plurality of yarn supply packages in which at least one of the color and the yarn type is different for each package is set as many as the number of yarns in one band,
A warp group unwound from the package group is supplied to each of the yarn selecting devices provided one by one corresponding to each package group. At each yarn selecting device, at least one yarn is supplied from the supplied warp group. The warp yarn is selected and supplied to the warping drum,
A partial warping method characterized by providing a yarn splicing device for splicing the yarn selected by the yarn selecting device so as to correspond to the yarn selecting device on a one-to-one basis.   6. The partial warping method according to claim 5, wherein the warping creel is a fixed creel. The partial warping method according to claim 5 or 6,
The warp is supplied to the warping drum by the yarn selection device and the yarn joining device corresponding to all or a selected portion of one band of warp while the warp is wound on the warping drum by a predetermined length. A partial warping method, characterized by switching warped yarns. The partial warping method according to claim 7,
The warping drum is driven by a motor that can be rotationally driven while controlling the angle,
The warp drum is rotated by an angle corresponding to a preset switching point, and all or a selected part of the yarn selection device and the yarn joining device is operated to switch the selection of the warp. A partial warping method.

Images